Control system, terminal device for maintenance worker, and control device
Abstract
Problem to be solved.To reduce the risk of giving anxiety to a maintenance worker about an erroneous operation of remote control and the risk of endangering the maintenance worker even in a system having a wide area work site.
Solution.A maintenance worker terminal device 200 carried by a maintenance worker requests a central control device 100 to maintain a maintainable state in which a target device 900 is controlled so that maintenance work can be performed safely. Send a PIN lock request. The central controller 100 transitions to the PIN lock state that maintains the maintainable state in accordance with this PIN lock request. [Selection diagram] Fig. 1

Term
Projected expiry 11 January 2031.
- Priority and filed
- Published
- Today
- Projected expiry
12 claims: 6 independent, 6 dependent
- 1保守作業の安全性に影響を及ぼす対象機器と、 前記保守作業を安全に行える状態である保守可能状態となるよう前記対象機器を制御する制御部と、通信を行う通信部と、を具備する制御装置と、 前記保守作業を行う保守作業員による入力操作を受け付ける操作入力部と、前記制御装置の前記制御部が前記対象機器を前記保守可能状態となるよう制御しているときに、前記操作入力部の受け付ける入力操作に応じて、前記保守可能状態を維持するよう前記制御装置に要求するロック要求を生成するロック要求生成部と、通信を行う通信部と、を具備する保守作業員端末装置と、 を備え、 前記保守作業員端末装置の前記通信部は、前記ロック要求を送信し、 前記制御装置の前記通信部は、前記ロック要求を受信し、 前記制御装置の前記制御部は、前記制御装置の前記通信部が受信する前記ロック要求に基づいて、前記保守可能状態を維持するよう前記対象機器を制御するロック状態に遷移する、ことを特徴とする制御システム。
- 2前記制御装置は、入力操作を受け付ける操作入力部を具備し、 前記制御装置の前記通信部は、前記制御装置の前記操作入力部が受け付ける入力操作に従って、前記保守作業の内容を示す作業指示を前記保守作業員端末装置に送信し、 前記保守作業員端末装置の前記通信部は、前記作業指示を受信済みであるときに、前記保守作業員端末装置の前記操作入力部が受け付ける入力操作に従って、前記保守作業員が前記作業指示を確認したことを示す指示確認済情報を前記制御装置に送信し、 前記制御装置の前記制御部は、前記保守作業員端末装置から送信される前記指示確認済情報に基づいて、前記保守可能状態となるよう前記対象機器を制御する、 ことを特徴とする請求項1に記載の制御システム。
- 3前記制御装置の前記通信部は、前記制御部が、前記保守可能状態となるよう前記対象機器を制御すると、前記保守可能状態となったことを示す情報を前記保守作業員端末装置に送信し、 前記保守作業員端末装置の前記通信部は、前記保守可能状態となったことを示す情報を受信済みのときに、前記保守作業員端末装置の前記操作入力部の受け付ける前記入力操作に従って、前記ロック要求を前記制御装置に送信し、 前記制御装置の前記制御部は、前記保守作業員端末装置から送信される前記ロック要求に基づいて前記ロック状態に遷移する、 ことを特徴とする請求項1または2に記載の制御システム。
- 4前記保守作業員端末装置の前記操作入力部は、前記保守作業員を識別するPINコードの入力を含むロック要求操作を受け付け、 前記保守作業員端末装置の通信部は、前記PINコードを含む前記ロック要求を送信し、 前記制御装置の前記制御部は、前記ロック要求に含まれるPINコードが、予め登録されたPINコードと一致すると判定した場合に前記ロック状態に遷移する、 ことを特徴とする請求項1から3のいずれか一項に記載の制御システム。
- 5前記制御装置の前記通信部と前記保守作業員端末装置の前記通信部とは無線通信を行うことを特徴とする請求項1から4のいずれか一項に記載の制御システム。
- 6前記保守作業員端末装置の前記通信部は、前記ロック要求を送信済みのときに、前記保守作業員端末装置の前記操作入力部が受け付ける入力操作に従って、前記ロック状態の解除を要求するロック解除要求を送信し、 前記制御装置の前記制御部は、前記ロック解除要求に基づいて、前記ロック状態を解除する、 ことを特徴とする請求項1から5のいずれか一項に記載の制御システム。
- 7前記保守作業員端末装置の前記操作入力部は、前記保守作業員を識別するPINコードの入力を含むロック解除要求操作を受け付け、 前記保守作業員端末装置の通信部は、前記PINコードを含む前記ロック解除要求を送信し、 前記制御装置の前記制御部は、前記ロック解除要求に含まれるPINコードが、予め登録されたPINコードと一致すると判定した場合に前記ロック状態を解除する、 ことを特徴とする請求項1から6のいずれか一項に記載の制御システム。
- 8前記制御装置は、入力操作を受け付ける操作入力部を具備し、 前記制御部は、前記制御装置の前記操作入力部が受け付ける入力操作に基づいて、前記ロック状態を解除する、ことを特徴とする請求項1に記載の制御システム。
- 9保守作業の安全性に影響を及ぼす対象機器を、制御装置が、保守作業を安全に行える状態である保守可能状態となるよう制御している旨の情報を受信する通信部と、 入力操作を受け付ける操作入力部と、 を具備し、 前記通信部は、前記情報を受信済みであるときに、前記操作入力部の受け付ける前記入力操作に応じて、前記保守可能状態を維持するよう前記制御装置に要求するロック要求を前記制御装置に送信する、ことを特徴とする保守作業員端末装置。
- 10前記通信部は、前記ロック要求を送信済みのときに、前記操作入力部が受け付ける入力操作に従って、前記ロック状態の解除を要求するロック解除要求を前記制御装置に送信する、ことを特徴とする請求項9に記載の保守作業員端末装置。
- 11保守作業の安全性に影響を及ぼす対象機器を、保守作業を安全に行える状態である保守可能状態となるよう制御する制御部と、 前記保守可能状態を維持するよう要求するロック要求を受信する通信部と、 を具備し、 前記制御部は、前記保守可能状態となるよう前記対象機器を制御しているときに、前記通信部が前記ロック要求を受信すると、前記保守可能状態を維持するよう前記対象機器を制御するロック状態に遷移する、ことを特徴とする制御装置。
- 12前記通信部は、前記ロック状態の解除を要求するロック解除要求を受信し、 前記制御部は、前記ロック状態にあるときに、前記通信部が前記ロック解除要求を受信すると、当該ロック解除要求に基づいて前記ロック状態を解除する、ことを特徴とする請求項11に記載の制御装置。
Independent claims12
160 paragraphs, as filed
The present invention relates to a control system that controls a target device that affects the safety of maintenance work, a maintenance worker terminal device and a control device provided in the control system.
To ensure the safety of maintenance workers when performing maintenance work, such as measures to prohibit the entry of transportation facilities when performing maintenance work on transportation systems and measures to prohibit the use of elevators when performing maintenance work on elevator systems. , Remote control safety measures may be implemented. For example, in a railway traffic system, when performing maintenance work on equipment installed in a fence along a railroad track, which is the traveling area of a vehicle, overhead lines, etc. are used by a commander in the central command room to ensure the safety of the maintenance workers. Measures such as stopping the power supply to the power supply equipment, vehicle entry protection (no entry) by controlling the signal equipment, or deceleration command to the opposite line will be implemented.
Further, in Patent Document 1, a manhole open / close switch is provided in a manhole which is an entrance to a machine room of a passenger conveyor device (escalator or the like), and when it is detected that the manhole is in an open state, the passenger conveyor device causes the passenger conveyor device. The technology that stops accepting remote operations is shown. And, according to this technology, it is said that activation by remote control can be prevented.
<p><patcit num="1"><text>Japanese Unexamined Patent Publication No. 2008-1467</text></patcit></p>
<p> However, the safety measures by remote control as described above may cause anxiety to the maintenance worker and may endanger the maintenance worker. For example, in a railway transportation system, even though maintenance workers are performing maintenance work inside the fence along the railway line, safety measures are not implemented or are once implemented due to misrecognition or erroneous operation of the commander in the central command room. The safety measures that have been taken may be lifted, putting maintenance workers at risk. In addition, maintenance workers at the maintenance site may not be able to directly confirm the implementation status of safety measures, and may feel anxious about whether or not safety measures have been implemented.</p><p> On the other hand, if the maintenance worker himself confirms the implementation status of the safety measures or implements and cancels the safety measures, the maintenance workers will be anxious and the maintenance workers will be in danger. The risk of exposure to is eliminated. However, depending on the work target, when the maintenance worker cannot confirm the implementation status of the safety measures or implement and cancel the safety measures, or when it is not appropriate for the maintenance worker to implement and cancel the safety measures. There is.</p><p> For example, in a railway transportation system, in order to implement the above-mentioned measures to stop power supply to power supply equipment such as overhead lines, maintenance workers move to a substation, turn off the breaker, and prohibit operation of the breaker. It is necessary to perform operations such as hanging a string indicating. In addition, in order to implement measures such as vehicle entry protection (no entry) or deceleration command by controlling the signal equipment described above, maintenance workers move to the signal control room and change the signal from the operation panel. It is necessary to perform an operation and perform an operation such as putting a tag indicating prohibition of canceling the change operation on the operation panel. In this way, it is necessary for maintenance workers to move to the equipment control room (substation, signal control room, etc.) to implement safety measures. However, such movement can actually be performed only when the equipment control room is near the work site. Furthermore, if the maintenance worker is unfamiliar with the operation of implementing the safety measures, the maintenance worker may be endangered due to an operation error of the maintenance worker.</p><p> Further, according to the technique described in Patent Document 1, it is said that malfunction (activation) due to remote control can be prevented as described above, so that maintenance workers may be anxious due to misrecognition of the situation of the remote operator or malfunction. It can be prevented from giving or endangering maintenance workers. However, the technique described in Patent Document 1 is to provide a physical switch near the work site to block remote control. When there is a wide area work site such as a railway transportation system, a huge number of switches are provided in order to provide a switch for remote control cutoff so that maintenance workers can cut off remote control at the site. It is necessary, and the installation cost and maintenance cost are high. In addition, if you forget to turn on the switch after the work is completed, you will not be able to perform remote control, and it seems virtually impossible to properly manage and operate this huge number of switches so that remote control can function properly. As described above, it is not possible to apply a method of providing a switch for blocking remote control near the site, such as the technique described in Patent Document 1, to a system having a wide area work site.</p><p> The present invention has been made in consideration of such circumstances, and an object of the present invention is that even in a system having a wide-area work site, there is a risk of causing anxiety to maintenance workers and a risk of endangering maintenance workers. It is an object of the present invention to provide a control system, a maintenance worker terminal device and a control device capable of reducing the number of problems.</p>
<p> The present invention has been made to solve the above-mentioned problems, and the control system according to one aspect of the present invention includes a target device that affects the safety of maintenance work and maintenance in a state where the maintenance work can be performed safely. A control device including a control unit that controls the target device so as to be in a possible state, a communication unit that performs communication, an operation input unit that receives an input operation by a maintenance worker who performs the maintenance work, and the control device. When the control unit is controlling the target device so as to be in the maintainable state, a lock requesting the control device to maintain the maintainable state in response to an input operation received by the operation input unit. A maintenance worker terminal device including a lock request generation unit for generating a request and a communication unit for communicating is provided, and the communication unit of the maintenance worker terminal device transmits the lock request and the above. The communication unit of the control device receives the lock request, and the control unit of the control device maintains the maintainable state based on the lock request received by the communication unit of the control device. It is characterized by transitioning to a locked state that controls the target device.</p><p> Further, the control system according to one aspect of the present invention is the control system described above, wherein the control device includes an operation input unit that receives an input operation, and the communication unit of the control device is the control device. When a work instruction indicating the content of the maintenance work is transmitted to the maintenance worker terminal device according to an input operation received by the operation input unit, and the communication unit of the maintenance worker terminal device has received the work instruction. In accordance with the input operation received by the operation input unit of the maintenance worker terminal device, instruction-confirmed information indicating that the maintenance worker has confirmed the work instruction is transmitted to the control device, and the control device is described. The control unit is characterized in that the target device is controlled so as to be in the maintainable state based on the instruction confirmed information transmitted from the maintenance worker terminal device.</p><p> Further, the control system according to one aspect of the present invention is the above-mentioned control system, and when the communication unit of the control device controls the target device so that the control unit is in the maintainable state, the maintenance is performed. When the information indicating that the maintenance is possible is transmitted to the maintenance worker terminal device and the communication unit of the maintenance worker terminal device has received the information indicating that the maintenance is possible. The lock request is transmitted to the control device according to the input operation received by the operation input unit of the maintenance worker terminal device, and the control unit of the control device is transmitted from the maintenance worker terminal device. It is characterized in that it transitions to the locked state based on a request.</p><p> Further, the control system according to one aspect of the present invention is the above-mentioned control system, and the operation input unit of the maintenance worker terminal device performs a lock request operation including input of a PIN code for identifying the maintenance worker. Upon receipt, the communication unit of the maintenance worker terminal device transmits the lock request including the PIN code, and the control unit of the control device has a PIN code in which the PIN code included in the lock request is registered in advance. It is characterized in that the transition to the locked state is performed when it is determined that the information matches the above.</p><p> Further, the control system according to one aspect of the present invention is the above-mentioned control system, and is characterized in that wireless communication is performed between the communication unit of the control device and the communication unit of the maintenance worker terminal device.</p><p> Further, the control system according to one aspect of the present invention is the above-mentioned control system, and when the communication unit of the maintenance worker terminal device has already transmitted the lock request, the said maintenance worker terminal device. According to the input operation received by the operation input unit, the unlock request requesting the release of the lock state is transmitted, and the control unit of the control device releases the lock state based on the unlock request. It is a feature.</p><p> Further, the control system according to one aspect of the present invention is the above-mentioned control system, and the operation input unit of the maintenance worker terminal device is an unlock request operation including input of a PIN code for identifying the maintenance worker. The communication unit of the maintenance worker terminal device transmits the unlock request including the PIN code, and the control unit of the control device registers the PIN code included in the unlock request in advance. The lock state is released when it is determined that the PIN code matches the PIN code.</p><p> Further, the control system according to one aspect of the present invention is the control system described above, wherein the control device includes an operation input unit that accepts an input operation, and the control unit is the operation input unit of the control device. It is characterized in that the locked state is released based on an input operation to be accepted.</p><p> Further, the maintenance worker terminal device according to one aspect of the present invention controls the target device that affects the safety of the maintenance work so that the control device is in a maintainable state in which the maintenance work can be performed safely. The communication unit includes a communication unit that receives information indicating that the information is received, and an operation input unit that accepts an input operation, and the communication unit responds to the input operation received by the operation input unit when the information has been received. Therefore, a lock request requesting the control device to maintain the maintainable state is transmitted to the control device.</p><p> Further, the maintenance worker terminal device according to one aspect of the present invention is the above-mentioned maintenance worker terminal device, and the communication unit follows an input operation received by the operation input unit when the lock request has been transmitted. , The lock release request requesting the release of the lock state is transmitted to the control device.</p><p> Further, the control device according to one aspect of the present invention includes a control unit that controls a target device that affects the safety of maintenance work so as to be in a maintainable state in which maintenance work can be performed safely, and the maintainable state. The communication unit includes a communication unit that receives a lock request for maintaining the lock request, and when the control unit controls the target device so as to be in the maintainable state, the communication unit makes the lock request. Upon receiving the device, the device transitions to a locked state in which the target device is controlled so as to maintain the maintainable state.</p><p> Further, the control device according to one aspect of the present invention is the above-mentioned control device, in which the communication unit receives an unlock request requesting the release of the locked state, and the control unit is in the locked state. Occasionally, when the communication unit receives the unlock request, the lock state is released based on the unlock request.</p>
<p> According to the present invention, even in a system having a wide area work site, it is possible to reduce the risk of causing anxiety to the worker and the risk of endangering the worker.</p>
<figref num="1">It is a block diagram which shows the schematic structure of the railroad traffic control system in one Embodiment of this invention.</figref><figref num="2">It is a figure which shows the display example of the work instruction sheet by the display part of the maintenance worker terminal device in the same embodiment.</figref><figref num="3">It is a figure which shows the display example of the PIN input screen by the display part of the maintenance worker terminal apparatus in the same embodiment.</figref><figref num="4">It is a figure which shows the display example of the PIN input screen by the display part of the maintenance worker terminal apparatus in the same embodiment.</figref><figref num="5">In the same embodiment, it is a figure which shows the example of the screen which the display part of the central control device displays in the state that PIN lock is performed.</figref><figref num="6">It is explanatory drawing which shows the data structure of the safety measure management data stored in the storage part in the same embodiment.</figref><figref num="7">It is a sequence diagram which shows the operation example of the railroad traffic control system in the same embodiment.</figref><figref num="8">It is a sequence diagram which shows the operation example of the railroad traffic control system in the same embodiment.</figref><figref num="9">It is a sequence diagram which shows the operation example of the railroad traffic control system in the same embodiment.</figref><figref num="10">It is a sequence diagram which shows the operation example of the railroad traffic control system in the same embodiment.</figref><figref num="11">It is a sequence diagram which shows the operation example of the railroad traffic control system in the same embodiment.</figref><figref num="12">It is a sequence diagram which shows the operation example of the railroad traffic control system in the same embodiment.</figref><figref num="13">It is a flowchart which shows the processing procedure performed by the central control device in the same embodiment.</figref><figref num="14">It is a flowchart which shows the processing procedure performed by the central control device in the same embodiment.</figref><figref num="15">It is a flowchart which shows the processing procedure performed by the central control device in the same embodiment.</figref><figref num="16">It is a flowchart which shows the processing procedure performed by the central control device in the same embodiment.</figref><figref num="17">It is a flowchart which shows the processing procedure performed by the central control device in the same embodiment.</figref><figref num="18">It is a flowchart which shows the processing procedure performed by the central control device in the same embodiment.</figref><figref num="19">It is a flowchart which shows the processing procedure performed by the maintenance worker terminal apparatus in the same embodiment.</figref><figref num="20">It is a flowchart which shows the processing procedure performed by the maintenance worker terminal apparatus in the same embodiment.</figref><figref num="21">It is a flowchart which shows the processing procedure performed by the maintenance worker terminal apparatus in the same embodiment.</figref><figref num="22">It is a flowchart which shows the processing procedure performed by the maintenance worker terminal apparatus in the same embodiment.</figref><figref num="23">It is a flowchart which shows the processing procedure performed by the maintenance worker terminal apparatus in the same embodiment.</figref>
Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a configuration diagram showing a schematic configuration of a railway traffic control system according to an embodiment of the present invention. In the figure, the railway traffic control system (control system) 1 includes a central control device (control device) 100, a maintenance worker terminal device 200, a power control device 910, and a signal control device 920. The central control device 100 includes a display unit 110, an operation input unit 120, a communication unit 130, a storage unit 140, a control information communication unit 150, and a control unit 190. The maintenance worker terminal device 200 includes a display unit 210, an operation input unit 220, a communication unit 230, a storage unit 240, and a control unit (lock request generation unit) 290.
The railway traffic control system 1 controls each part of the railway traffic system such as an electric power system and a signal system. In particular, the railway traffic control system 1 controls the power control device 910 and the signal control device 920 at the time of maintenance work so that the maintenance work can be performed safely.
The power control device 910 and the signal control device 920 are examples of target devices controlled by the central control device 100, respectively. Hereinafter, the power control device 910 and the signal control device 920 are collectively referred to as a target device 900. The power control device 910 supplies electric power to an overhead wire in an area where maintenance work is performed (hereinafter, referred to as maintenance work area). The power control device 910 affects the safety of the maintenance work in that the maintenance worker may come into contact with the overhead wire and receive an electric shock. Further, the signal control device 920 controls the traffic signal in or around the maintenance work area. If the signal control device 920 changes the display of the traffic light to allow entry into the maintenance work area, the signal control device 920 may enter the maintenance work area, and the signal control device 920 makes maintenance work safer. affect.
Therefore, the control unit 190 of the central control device 100 controls the power control device 910 and the signal control device 920 so as to be in a maintainable state in which the maintenance work can be safely performed during the maintenance work. Specifically, the control unit 190 controls the power control device 910 so that the power control device 910 does not supply power to the overhead wire in the maintenance work area (maintenable state). Further, the control unit 190 controls the signal control device 920 so that the signal control device 920 is in a state (maintenable state) in which the display of the traffic light is a display prohibiting entry into the maintenance work area.
The target device controlled by the central control device 100 is not limited to the control device such as the power control device 910 and the signal control device 920 shown in FIG. The target device may be any device that performs a state transition and can control the state transition by the central control device 100. For example, the central control device 100 may directly control the traffic light, and in this case, the traffic light is the target device. Alternatively, a switch can also be a target device.
Further, the target device is not limited to the device to be maintained. Equipment in or around the maintenance work area and various equipment that controls the equipment can be the target equipment. For example, when performing track maintenance work (maintenance work of rails, switches, etc.), a switch control device that controls the switch to be maintained, a traffic light that displays whether or not to enter the maintenance work area where track maintenance work is performed, , A signal control device that controls the signal, etc. can be the target device.
The central control device 100 is installed in the central command room (OCC) and centrally controls the railway traffic control system 1. In particular, the central control device 100 receives a request from the maintenance worker terminal device 200 regarding the control of the target device 900, and performs the above-mentioned control on the target device 900 in response to the request. The display unit 110 has a display screen such as a liquid crystal display or a plasma display, and displays an image, characters, or the like under the control of the control unit 190. In particular, the display unit 110 displays information on the work instruction form described later, the permission application (instruction confirmed information), and the control status of the target device 900.
The operation input unit 120 has an input device such as a keyboard, a mouse, and a push button for implementing safety measures, which will be described later, and allows an input operation by a commander in the central command room (hereinafter, simply referred to as commander). Accept. In particular, the operation input unit 120 accepts an input operation to the form while the display unit 110 displays the work instruction form. Further, the operation input unit 120 accepts the input of the confirmation result of the permission application while the display unit 110 displays the permission application.
The communication unit 130 performs wireless communication with the communication unit 230 of the maintenance worker terminal device 200. The communication unit 130 exchanges various data with the communication unit 230, such as sending a work instruction to the communication unit 230 and receiving a permission application. The storage unit 140 stores various data such as a work instruction form, safety measure management data indicating the control status of the target device 900 by the central control device 100, a program for realizing the function of the control unit 190, and the like. To do. Further, the storage unit 140 functions as a working memory of the control unit 190.
The control information communication unit 150 transmits a control signal to the target device 900 according to the control of the control unit 190. That is, the control unit 190 controls the target device 900 by transmitting a control signal to the target device 900 via the control information communication unit 150. The control unit 190 is realized by the CPU (Central Processing Unit) included in the central control unit 100 reading a program from the storage unit 140 and executing the program, and controls each unit of the central control unit 100. Further, the control unit 190 controls the target device 900 as described above, and notifies the maintenance worker terminal device 200 of the control status via the communication unit 130.
The maintenance worker terminal device 200 is, for example, a portable personal computer (Portable Personal Computer) or a PDA (Personal Digital Assistant), and the maintenance worker carries it to the maintenance work site. Then, the maintenance worker terminal device 200 transmits a PIN lock request and a PIN unlock request to the central control device 100 according to the operation of the maintenance worker. In addition, the maintenance worker terminal device 200 displays the status of safety measures taken by the central control device 100, such as whether or not the PIN lock is valid.
The display unit 210 has a display screen such as a liquid crystal display, and displays images, characters, and the like under the control of the control unit 290. In particular, the display unit 210 displays work instructions to be described later and information on the control status of the target device 900 by the central control device 100. The operation input unit 220 has an input device such as a keyboard or a touch panel, and receives a force operation by a maintenance worker. In particular, the operation input unit 220 accepts an operation of inputting necessary items to the permission application form while the display unit 210 displays the work instruction as the maintenance work permission application form.
The communication unit 230 performs wireless communication with the communication unit 130 of the central control device 100. The communication unit 230 exchanges various data with the communication unit 130, such as receiving a work instruction from the communication unit 130 and transmitting a permission application. The storage unit 240 stores various data such as route map data displayed by the display unit 210 in response to a request from the maintenance worker, a program for realizing the function of the control unit 290, and the like. Further, the storage unit 240 functions as a working memory of the control unit 290. The control unit 290 is realized by the CPU included in the maintenance worker terminal device 200 reading a program from the storage unit 240 and executing the program, and controls each part of the maintenance worker terminal device 200. In particular, the control unit 290 requests the central control device 100 to maintain a maintainable state (a state in which safety measures are taken) in response to an input operation of a maintenance worker received by the operation input unit 220. , Generates an unlock request requesting the central controller 100 to release the maintenance of the maintainable state, and transmits the unlock request to the central controller 100 via the communication unit 230.
Next, the screens displayed by the maintenance worker terminal device 200 and the central control device 100 will be described with reference to FIGS. 2 to 4. FIG. 2 is a diagram showing a display example of a work instruction sheet by the display unit 210 of the maintenance worker terminal device 200. When the communication unit 230 receives the work instruction sent from the central control device 100, the display unit 210 displays the work instruction according to the control of the control unit 290. In the figure, the work order includes areas A11 and A12. Area A11 is a display area for maintenance work contents, and is a display area A111 for an identification code indicating a work category, a display area A112 for a work supervisor name, and a contact. A telephone number display area A113, a maintenance work schedule (Date of Work) display area A114, a maintenance work time (Time) display area A115, a work description (Description of work) display area A116, and maintenance work. Includes the Location of work display area A117.
Area A12 is a display area for safety measures when performing maintenance work, and is a selection area A121 for items of safety measures (Required to change of setting) required by maintenance workers, and special instructions / information. ) Display area A122 and included. In area A121, as safety measures options required by maintenance workers, a train entry prohibition request (Track closure required) and a speed limit request (TSR required (25km / h)) that limits the train speed to 25 km / h or less are required. )) And a power supply isolation request (Power supply isolation) are displayed. Of these, in the example shown in FIG. 2, a train entry prohibition request and a power supply stop request can be selected.
Work instructions are also used as a permit application form to apply for a permit for maintenance work and the implementation of safety measures. For example, while the display unit 210 is displaying the work instruction sheet of FIG. 2, the maintenance worker confirms that there are no mistakes or deficiencies in each item shown in the area A11, and then displays the work instruction in the area A121. Check the necessary safety measures from the items listed above.
The safety measure check is performed, for example, by a maintenance worker touching a necessary safety measure item on the display screen of the display unit 210. When the safety measure item is touched, the operation input unit 220 detects the touched position on the display screen by the touch panel provided therein and outputs the touched position to the control unit 290. Then, the control unit 290 determines the selected item based on the touched position detected by the operation input unit 220, and reverses the check display of the item. (That is, if the check box of the item is displayed without a check mark indicating that the item has not been selected yet, the check box is checked. On the other hand, the check box of the item is If there is a check mark indicating that the item has already been selected, remove the check mark from the check box.)
After checking the safety measures, when the maintenance worker performs the permission application operation, the control unit 290 outputs the work instruction with the checked safety measures to the communication unit 230 as a permission application. The permission application operation is performed, for example, by the maintenance worker touching the permission request (Request PTW) button B11 on the display screen of the display unit 210. Then, the communication unit 230 transmits the permission application output from the control unit 290 to the central control device 100. As will be described later, in the central control device 100, when the commander confirms the permission application transmitted from the maintenance worker terminal device 200 and the permission application is accepted, the central control device 100 receives the target device 900. Control so that it is in a maintainable state.
3 and 4 are diagrams showing a display example of the PIN input screen by the display unit 210 of the maintenance worker terminal device 200. This PIN input screen is displayed, for example, by a maintenance worker pressing (touching on the screen) the PIN input screen selection button B21 in the display screen selection area A25 that is always displayed.
FIG. 3 shows a display example of the PIN input screen when the PIN is not locked. Here, in the PIN lock, the central control device 100 controls the target device 900 so as to maintain a maintainable state (a state in which maintenance work can be performed safely), and in principle, maintenance is performed without a PIN unlock request by a maintenance worker. It means that the maintenance of the possible state cannot be resolved. The PIN lock is an example of the lock in the present invention. The confirmation of the authority when performing the lock, which will be described later, is not limited to the PIN (identification number of the maintenance worker), and may be performed using, for example, the biological information of the maintenance worker. Similarly, the PIN unlock described later is an example of unlocking in the present invention. The PIN input screen shown in FIG. 3 in the state where the PIN lock is not performed is a screen for the maintenance worker to input the PIN when requesting the PIN lock.
In the PIN input screen shown in FIG. 3, the areas A21 and A22 indicate the safety measures taken by the central controller 100, respectively. Area A21 indicates the temporary speed (temporary speed limit in the event of personal injury, etc.) in the designated section 0301-0419 km (identification of the section by km used on roads, railways, etc.). In addition, area A22 indicates a feeder OFF (stop of power supply) in the designated section 0320-0402 km. As explained in Fig. 2, these safety measures are centrally controlled when the maintenance worker selects them from the safety measure selection items displayed in the work order and the commander approves (accepts the permit application). Implemented by device 100.
Further, on the PIN input screen of the figure, the icon C21 symbolizing the safety measure shown in the area A21 and the icon C22 symbolizing the safety measure shown in the area A22 are displayed. In addition, the work instruction number is displayed in the work instruction number display area A23. As will be described later, the work instruction number is an identification number (ID Number) of the work instruction. This work instruction number is also used as an identification number for maintenance work.
A PIN lock request operation is performed by entering a PIN (Personal Identification Number). For example, a maintenance worker selects (touches on the screen) the area A24 for PIN input, then inputs the PIN from the keyboard, and the input PIN is displayed in the area A24 by the control unit 290 and the display unit 210. To. Then, when the maintenance worker completes the input of the PIN, the maintenance worker requests the PIN lock by pressing the lock request button B22 for requesting the PIN lock (for example, touching on the display screen). Based on this PIN lock request, the central controller 100 transitions to the PIN lock state, as will be described later.
FIG. 4 shows a display example of the PIN input screen when the PIN is locked. The PIN input screen in the state where the PIN lock is performed is a screen for inputting the PIN when the maintenance worker requests the release of the PIN lock. On the PIN input screen shown in the figure, the same reference numerals (A21, A22, A23, A24, B21, C21, C22) are attached to the parts displaying the same contents as those in FIG. 3, and the description is omitted. ..
The icons C33 and C34 indicate that the safeguard is PIN-locked. Icon C33 indicates that the safeguards shown in area A21 are PIN-locked. Therefore, in the state of FIG. 4 in which the icon C33 is displayed, as a general rule, the rapid speed shown in the area A21 continues to be performed unless the maintenance worker requests the release of the PIN lock. Icon C34 also indicates that the safeguards shown in area A22 are PIN-locked. Therefore, in the state of FIG. 4 in which the icon C33 is displayed, as a general rule, the feeder OFF state shown in the area A22 is maintained unless the maintenance worker requests the release of the PIN lock. Further, in FIG. 4, instead of the lock request button B22 in FIG. 3, an unlock request button B32 for requesting the release of the PIN lock is displayed.
Similar to the PIN lock request operation, the PIN lock release request operation is performed by inputting the PIN. In the example of FIG. 4, the maintenance worker requests the PIN lock by inputting the PIN in the PIN input area A24 and pressing the unlock request button B32 (for example, touching on the display screen). .. Based on this PIN lock release request, the central control device 100 releases the lock state as described later.
FIG. 5 is a diagram showing an example of a display screen of the display unit 110 of the central control device 100 in a state where the PIN is locked. In the figure, a diagram showing the power supply status in the maintenance work area and its surroundings is displayed in the area A41. Then, by displaying the icons C411 and C413 marked with x, and further suppressing the brightness of the display of the line between both x marks, the feeder is turned off (power supply stop) in the section between the x marks C411 and C413. ) Is shown. This feeder OFF is performed by the central control device 100 controlling the power control device 910. In addition, the icon C412 indicates that the feeder OFF in the section between the x marks C411 and C413 is PIN-locked.
In area A42, a diagram showing the contents of maintenance work and the implementation status of safety measures is displayed. Area A421 is a display area for the implementation status of safety measures, and the implementation status of safety measures is displayed by icons C421 to C424. Icon C421, like Icon C21 (Fig. 3), symbolizes the speed that is being taken as a safety measure. The icon C422 symbolizes the feeder OFF shown in area A41. In addition, the icon C423 indicates that the safety measure (immediate) indicated by the icon C421 is PIN-locked like the icon C33 (Fig. 4), and the icon C424 indicates the safety measure indicated by the icon C422 like the icon C34. Indicates that (Kiden OFF) is PIN-locked.
Area A422 is a display area for maintenance work contents, and includes a display area A431 for the name of the site supervisor, a display area A432 for the maintenance work place (Worksite), and a display area A433 for the maintenance work time (Worktime). , Includes a display area A434 for the description of the work and a display area A435 for the special instruction.
The maintenance worker terminal device 200 also displays the safety measures implemented by the central control device 100 and the presence / absence of the PIN lock. Here, the maintenance worker terminal device 200 is a portable terminal device, and the display screen of the maintenance worker terminal device 200 is smaller than the display screen of the central control device 100. Therefore, for example, the maintenance worker terminal device 200 displays a selected figure from the figure of the area A41 and the figure of the area A42 in response to the screen selection operation by the maintenance worker received by the operation input unit 220. ..
Next, the safety measure management data stored in the storage unit 140 will be described with reference to FIG. FIG. 6 is an explanatory diagram showing a data structure of safety measure management data stored in the storage unit 140. One line of safety measure management data shown in the figure corresponds to one maintenance work, and each line has a work instruction number storage field, a PIN storage field, and a status information storage field for each safety measure.
The work instruction number stored in the work instruction number storage field is an identification number of the work instruction, for example, a serial number assigned to each work instruction. A work order is generated for each maintenance work, and the work order number is also used as an identification number for the maintenance work. As will be described later, when the control unit 190 generates a work instruction sheet, the control unit 190 adds a work instruction number to the work instruction sheet. At that time, the control unit 190 stores the work instruction number in the storage unit 140 (writes it in the work instruction number storage field of the safety measure management data).
As described above, the PIN stored in the PIN storage field is an identification number that identifies the maintenance worker. The persons who have the authority to request the PIN lock (PIN lock request authority) described in Fig. 3 are limited to some persons for each maintenance work, such as the site supervisor, and all the persons who have the authority to request the PIN lock. The PIN is stored in the PIN storage field. Specifically, when the commander generates the work instruction, the PIN lock request authority is determined, and the PINs of all the PIN lock request authority persons are input by using the operation input unit 120. Then, the control unit 190 writes all the PINs that the operation input unit 120 accepts the input into the PIN storage field of the target maintenance work line. As will be described later, this PIN indicates the destination of the work order, and when the control unit 190 acquires the PIN lock request, it determines whether or not the PIN lock request is from the PIN lock request authority. Used when.
A status information storage column is provided for each safety measure and stores the implementation status of the safety measure. Here, the area to which the power control device 910 supplies power is divided into several sections in advance, and the commander determines whether or not to supply power to each of the divided sections. That is, the commander implements safety measures on a section-by-section basis. Similarly, the area in which the signal control device 920 controls the traffic light is divided into several sections in advance, and the commander determines the content to be displayed on the traffic light for each of the divided sections. That is, the commander implements safety measures on a section-by-section basis. Therefore, each line of the safety measure management data has a state information storage column for each of the power control device 910 and the signal control device 920 for each divided section, that is, for each safety measure implementation unit.
Then, in the state information storage column, data indicating any one of "NA", "not yet", "implemented", and "locked" is stored according to the implementation status of the safety measure. Here, "NA" indicates that the corresponding safety measures are not taken (not covered) in the corresponding maintenance work. Not yet indicates that the relevant safety measures have not yet been implemented. "Implementation" indicates that the relevant safety measures are being implemented. "Locked" indicates that the relevant safeguard is in a PIN-locked state.
Next, the outline of the operation of the railway traffic control system 1 will be described with reference to FIGS. 7 to 12. 7 to 12 are sequence diagrams showing an operation example of the railway traffic control system 1. FIG. 7 is a sequence diagram showing an operation example of the railway traffic control system 1 in the process from the generation of the work instruction sheet by the central control device 100 to the effective display of the safety measure by the central control device 100 and the maintenance worker terminal device 200. .. The railway traffic control system 1 starts the process shown in the figure when, for example, a failure occurs in the electric power equipment on the railroad track. First, in the central control device 100, when the operation input unit 120 receives the display request of the work instruction manual creation form by the commander, the control unit 190 reads out the work instruction manual creation form stored in the storage unit 140. Displayed on the display unit 110 (sequence S101).
Next, the operation input unit 120 receives an input operation of necessary items by the commander for the work instruction form creation form displayed by the display unit 110. Then, the control unit 190 generates a work instruction sheet according to the input operation received by the operation input unit 120, adds the work instruction sheet number, and outputs the work instruction sheet to the communication unit 130 (sequence S102). Then, the communication unit 130 transmits the work instruction sheet output from the control unit 190 together with the work instruction sheet number to the communication unit 230 of the maintenance worker terminal device 200 (sequence S103).
On the other hand, in the maintenance worker terminal device 200 carried to the maintenance work site by the maintenance worker, the operation input unit 220 receives the input operation of the user ID and password by the maintenance worker and outputs the operation to the control unit 290. Then, the control unit 290 performs login processing such as user authentication based on the user ID and password (sequence S111). Then, when the login is successful, the control unit 290 causes the display unit 110 to display the initial screen (sequence S112). As an initial screen, the display unit 110 displays, for example, a railway route map (overall view or detailed view near the maintenance work area), a diagram showing vehicle position information on the route map, and an ON / OFF status of power equipment. The figure to be shown, the current position information (GPS (Global Positioning System) information) of the maintenance worker terminal device, the worker's schedule table, the worker's profile, etc., or a screen in which these are combined is displayed. Then, when the communication unit 230 receives the work instruction sheet transmitted from the central control device 100 in the above-described sequence S121, the control unit 290 causes the display unit 210 to display the work instruction sheet (sequence S122).
As explained in Figure 2, work instructions are also used as a permit application form to apply for a permit for maintenance work and the implementation of safety measures. When the operation input unit 220 accepts the input operation of the necessary items of the permission application while the display unit 210 displays the work instruction form as the permission application form, the control unit 290 is based on the input received by the operation input unit 220. Generate a permit request (Sequence S123). Here, the operation for inputting the necessary items of the permission application is, for example, the operation of selecting the safety measures necessary for the maintenance work (touch operation for the item shown in the area A121 of FIG. 2) described in FIG. The items that need to be entered in the permit application are not limited to the selection of safety measures explained in Fig. 2. For example, a check box may be provided for each item in the area A11 of FIG. 2, and the maintenance worker may check each item and check the check box. Furthermore, a checklist for preparation for maintenance work, such as whether or not a helmet is worn, may be included in the work instruction sheet so that the maintenance worker can check it. Then, the control unit 290 outputs the permission application generated in the sequence S123 to the communication unit 230, and the communication unit 230 transmits the permission application to the central control device 100 (sequence S124).
When the communication unit 130 receives the permission application from the maintenance worker terminal device 200 in the central control device 100, the control unit 190 displays the permission application on the display unit 110 (sequence S125). Then, the commander confirms the permission application displayed by the display unit 110, determines whether or not there is a problem in the content and preparation of the maintenance work, and confirms the result (determines whether or not there is a problem) in the operation input unit 120. Result) input operation. In the example of FIG. 7, the operation input unit 120 accepts an input operation of a confirmation result indicating that there is no problem (sequence S126).
Then, the control unit 190 generates a permission application acceptance notification, which is a notification indicating that there is no problem in the permission application, based on the input operation received by the operation input unit 120, and outputs the notification to the communication unit 130. The communication unit 130 transmits this acceptance notification to the maintenance worker terminal device 200 (sequence S127). In the maintenance worker terminal device 200, the communication unit 230 receives the acceptance notification from the central control device 100, and the control unit 290 displays the acceptance notification on the display unit 210 (sequence S131).
Further, in the central control device 100, after transmitting the acceptance notification in the sequence S127, the operation input unit 120 receives an input operation instructing the implementation of the safety measure, and outputs information indicating the accepted input operation to the control unit 190. (Sequence S141). For example, the operation input unit 120 has push buttons for instructing to stop power supply for each predetermined section, and accepts the push buttons to be pressed. Then, the operation input unit 120 outputs information for instructing the stop of power supply to the section corresponding to the pressed push button to the control unit 190. Further, the operation input unit 120 has push buttons for instructing the vehicle entry prohibition for each predetermined section, and accepts the push buttons. Then, the operation input unit 120 outputs the information instructing the vehicle entry prohibition to the section corresponding to the pressed push button to the control unit 190. In the example of FIG. 7, the commander presses a push button for instructing the stop of power supply to the maintenance work area and a push button for instructing the vehicle to prohibit entering the maintenance work area. Then, the operation input unit 120 outputs the information instructing the stop of power supply to the maintenance work area and the information instructing the prohibition of vehicle entry into the maintenance work area to the control unit 190.
Then, the control unit 190 controls the target device 900 so as to be in a maintainable state in which maintenance work can be safely performed (that is, implements safety measures) according to the information output from the operation input unit 120. .. Specifically, the control unit 190 causes the power control device 910 to stop the power supply to the maintenance work area based on the information output from the operation input unit 120 instructing the power supply to the maintenance work area to be stopped. The instruction control information is transmitted to the power control device 910 via the control information communication unit 150 (sequence S142). According to this control information, the power control device 910 stops the power supply to the designated section (maintenance work area) (sequence S144). Further, the control unit 190 displays a signal indicating that the vehicle entry is prohibited in the maintenance work area by the signal control device 920 based on the information output from the operation input unit 120 instructing the vehicle entry prohibition into the maintenance work area. The control information instructing the signal is transmitted to the signal control device 920 via the control information communication unit 150 (sequence S143). According to this control information, the signal control device 920 sets the signal display of the traffic signal to be controlled as a signal display indicating prohibition of vehicle entry into the designated section (maintenance work area) (sequence S145).
The power control device 910 that has completed the process of stopping the power supply to the designated section in the sequence S144 outputs information indicating that the power supply has been stopped to the central control device 100 (sequence S146). Similarly, the signal control device 920 that has completed the process of displaying a signal indicating that the vehicle is prohibited from entering the designated section in the sequence S145 outputs information indicating that the vehicle is prohibited from entering the central control device 100 ( Sequence S147). In the central control device 100, the control unit 190 acquires the information transmitted from the target device 900 via the control information communication unit 150. Then, the control unit 190 transmits information indicating that the safety measure is effective to the maintenance worker terminal device 200 via the communication unit 130 (sequence S148). In the maintenance worker terminal device 200, the communication unit 230 receives the above information from the control unit 190 and outputs it to the control unit 290, and the control unit 290 indicates to the display unit 210 that safety measures have been taken. Display (Sequence S151).
Further, the control unit 190 causes the display unit 110 to display that the safety measures have been taken based on the acquired information (sequence S152). The indication that this safety measure is implemented is made, for example, by changing the brightness of the track and displaying an icon marked with a cross such as the icon C411 on the screen described with reference to FIG.
FIG. 8 shows a railway traffic control system when the central control device 100 locks the PIN in response to the PIN lock request from the maintenance worker terminal device 200 after the safety measures are activated by the series of processes shown in FIG. It is a sequence diagram which shows the operation example of 1. When the operation input unit 220 receives the display request of the PIN input screen in the maintenance worker terminal device 200, the display unit 210 displays the PIN input screen under the control of the control unit 290 (sequence S162). As described with reference to FIGS. 3 and 4, the PIN input screen is a screen for requesting PIN lock or PIN unlock.
Then, the operation input unit 220 receives the PIN input and the PIN lock request operation, and outputs the PIN and the PIN lock request to the control unit 290 (sequence S162). For example, the operation input unit 220 receives a PIN input from its keyboard and outputs a PIN to the control unit 290, and the control unit 290 controls the display unit 210 to control the PIN input area (area of FIG. 3). Display the PIN on A24). Then, the operation input unit 220 accepts the pressing of the lock request button (button B22 in FIG. 3) and outputs a PIN lock request to the control unit 290.
Upon receiving the output of the PIN lock request from the operation input unit 220, the control unit 290 sets the work instruction number included in the work instruction received in the sequence S121 (FIG. 7) and the PIN input in the sequence S162. Generates a PIN lock request including it and outputs it to the communication unit 230. Then, the communication unit 230 transmits a PIN lock request including the work instruction number and the PIN to the central controller 100 (sequence S163).
In the central control device 100, the communication unit 130 receives the PIN lock request including the work instruction number and the PIN and outputs the PIN lock request to the control unit 190. Then, the control unit 190 determines whether or not the PIN lock request is from a person who has the PIN lock request authority based on the work instruction number and the PIN included in the PIN lock request (sequence S164).
Specifically, as explained in FIG. 6, the persons who have the PIN lock request authority are limited to some persons for each maintenance work, and the storage unit 140 has the work instruction number and the PIN lock request authority. It is stored in advance in association with the PINs of all the persons. Then, the control unit 190 that has acquired the PIN lock request from the communication unit 130 reads the work instruction number from the acquired PIN lock request, and stores the PIN associated with the read work instruction number in the storage unit 140. Read from safeguards management data. Further, the control unit 190 reads the PIN from the PIN lock request, and if the PIN read from the PIN lock request is included in the PIN read from the storage unit 140, the PIN lock from the person who has the PIN lock request authority. Judge as a request. On the other hand, if the PIN read from the PIN lock request is not included in the PIN read from the storage unit 140, it is determined that the PIN lock request is from a person who does not have the PIN lock request authority. Here, by keeping the PIN private, each maintenance worker can enter only his / her own PIN. As a result, the PIN can be used as a password when requesting a PIN lock or unlocking a PIN.
The control unit 190 that determines that the PIN lock request is from a person who has the PIN lock request authority transitions to the PIN lock state (sequence S165). The transition to the PIN lock state is performed by the control unit 190 rewriting the value in the corresponding state information storage column of the safety measure management data stored in the storage unit 140 to "lock".
In the present embodiment, the control unit 190 PIN-locks all the safety measures required for the corresponding maintenance work based on one PIN lock request, but the maintenance worker terminal device 200 performs each safety measure. A PIN lock request may be sent and the control unit 190 may perform a PIN lock for each safety measure. Similarly, for PIN unlocking, the maintenance worker terminal device 200 may send a PIN unlock request for each safety measure, and the control unit 190 may perform PIN unlock for each safety measure. As a result, while managing multiple tasks together as one maintenance task, such as maintenance and inspection of power systems in multiple areas, only necessary safety measures are implemented at the required timing, and the impact on the transportation system. Can be minimized.
After performing the transition to the PIN lock state, the control unit 190 controls the display unit 110 to display that the PIN lock has been activated (sequence S166). For example, as described in FIG. 5, the display unit 110 displays an icon (icons C412, C423, C424) indicating the PIN lock status on the display screen to indicate that the PIN lock has been activated. It is said. Further, the control unit 190 outputs information indicating that the PIN lock is enabled to the communication unit 130, and the communication unit 130 transmits the information to the maintenance worker terminal device 200 (sequence S167).
In the maintenance worker terminal device 200, the communication unit 230 receives the information indicating that the PIN lock is enabled and outputs the information to the control unit 290. Then, the control unit 290 controls the display unit 210 to display that the PIN lock has been activated (sequence S168). For example, as described in FIG. 5, the display indicating that the PIN lock is enabled is displayed by icons (icons C412, C423) indicating the PIN lock state when the display unit 210 displays a diagram of each area in FIG. , C424) is displayed. After confirming on the maintenance worker terminal device 200 that the PIN lock has been activated, the maintenance worker executes the maintenance work.
In this way, in response to the request from the maintenance worker terminal device 200, the central control device 100 transitions to the PIN lock state, which is a state in which the maintainable state is maintained. Then, when the central control device 100 transitions to the PIN lock state, the maintenance worker terminal device 200 displays that the PIN lock has been activated. As a result, the central control device 100 is in a state in which the safety measures cannot be released in principle without the request from the maintenance worker terminal device 200, that is, the request from the maintenance worker, which causes the maintenance worker terminal device 200 to cancel. Since it is displayed, it is possible to prevent the safety measures from being released and endangering the worker due to misrecognition or erroneous operation of the commander in the central command room. That is, the risk of endangering maintenance workers can be reduced. In addition, since the maintenance worker can confirm that the safety measures have been maintained, it is possible to reduce the risk of causing anxiety to the maintenance worker. Furthermore, since the maintenance worker can start the maintenance work after confirming that the safety measures are maintained, the maintenance work is not carried out due to the commander's misrecognition of the situation or the wrong operation. It is possible to prevent endangering personnel.
In principle, PIN lock and PIN unlock are performed in response to a request from the maintenance worker terminal device 200, but communication is not possible due to a failure of the maintenance worker terminal device 200, lack of batteries, or poor radio wave conditions. Or, in case there is no authorized person who can make a PIN lock request or PIN unlock request (for example, when the maintenance worker does not include the PIN lock request authorized person), the central control is exceptional. The PIN lock and PIN lock may be unlocked by operating the device 100. FIG. 9 is a sequence diagram showing an operation example of the railway traffic control system 1 when the PIN lock is performed by operating the central control device 100 after the safety measures are activated by the series of processes of FIG. 7. Hereinafter, the PIN lock performed by operating the central control device 100 will be referred to as "PIN lock by master key".
Sequence S181 is similar to sequence S161 (FIG. 8). However, on the PIN input screen, in addition to the lock request button B22 described in FIG. 3, the display unit 210 provides an e-mail transmission means to the commander in the central command room in order to request the PIN lock without inputting the PIN. Display the email send button to be provided. When the person who has the authority to request the PIN lock is absent, the maintenance worker presses the mail transmission button (for example, touches on the screen) as an operation for requesting the PIN lock by the master key. When the operation input unit 220 receives this pressing operation (sequence S182), the control unit 290 provides a mail transmission means (sequence S183). Specifically, the control unit 290 controls the display unit 210 to display the mail generation screen, and generates an e-mail according to the character input operation received by the operation input unit 220. Then, when the operation input unit 220 accepts the e-mail transmission operation, the control unit 290 transmits an e-mail to the central control device 100 via the communication unit 230. The method of requesting a PIN lock using the master key is not limited to the method of sending an email as described above. For example, a maintenance worker may make a voice call with a commander using a telephone device independent of the railroad traffic control system 1 to request a PIN lock with a master key.
In the central control device 100, when the communication unit 130 receives an e-mail from the maintenance worker terminal device 200, the display unit 110 displays the e-mail and prompts the commander to confirm. This will display a PIN lock request with the master key (Sequence S184). After that, the operation input unit 120 receives the PIN lock operation by the master key (sequence S185), and the control unit 190 transitions to the PIN lock state according to the operation (sequence S186). For example, the operation input unit 120 receives the input of the work instruction number by the commander, and the control unit 190 sets the value of the state information storage column of the safety measure management data described with reference to FIG. 6 according to the work instruction number. Rewrite from "implementation" to "lock".
Here, since the PIN lock is a process for maintaining the safety measure, there is usually no risk of endangering the maintenance worker even if the PIN lock is performed by the master key. Therefore, it is possible to lock the PIN with the master key by a simpler process than unlocking the PIN, which will be described later. Hereinafter, the sequences S187 to S189 are the same as the sequences S166 to S168 in FIG.
In this way, by accepting the PIN lock by the master key, the central control device 100 is in a state where communication is not possible due to a failure of the maintenance worker terminal device 200, a shortage of batteries, or a poor radio wave condition, or an authority to request a PIN lock. A PIN lock can be performed even when a person is absent. As a result, it is possible to reduce the risk of causing anxiety to the maintenance worker and the risk of endangering the worker.
FIG. 10 shows the case where the central controller 100 releases the PIN lock in response to the PIN unlock request from the maintenance worker terminal device 200 after the PIN lock is activated by the series of operations shown in FIG. 8 or 9. , It is a sequence diagram which shows the operation example of the railroad traffic control system 1. When the maintenance work is completed, the maintenance worker requests the display of the PIN input screen in order to request the PIN unlock. When the operation input unit 220 receives the display request of the PIN input screen, the display unit 210 displays the PIN input screen according to the control of the control unit 290 (sequence S201).
Then, the operation input unit 220 receives the PIN input and the PIN unlock request operation, and outputs the PIN and the PIN lock request to the control unit 290 (sequence S202). For example, the operation input unit 220 receives a PIN input from its keyboard and outputs a PIN to the control unit 290, and the control unit 290 controls the display unit 210 to control the PIN input area (area of FIG. 4). Display the PIN on A24). Then, the operation input unit 220 accepts the pressing of the unlock request button (button B32 in FIG. 4) and outputs the PIN unlock request to the control unit 290.
Upon receiving the output of the PIN unlock request from the operation input unit 220, the control unit 290 controls the display unit 210 to display a warning that the safety measure may be released for a predetermined time (sequence S203). This warning display is provided to give maintenance workers time to confirm that there is no problem even if the safety measures are released, and to take necessary measures to ensure safety as necessary. After that, the control unit 290 generates a PIN unlock request including the work instruction number included in the work instruction received in the sequence S121 (FIG. 7) and the PIN input in the sequence S202 to the communication unit 230. Output. Then, the communication unit 230 transmits a PIN unlock request including the work instruction number and the PIN to the central control device 100 (sequence S204).
In the central control device 100, the communication unit 130 receives the PIN unlock request including the work instruction number and the PIN, and outputs the PIN unlock request to the control unit 190. Then, the control unit 190 determines whether or not the PIN unlock request is from a person who has the PIN unlock request authority based on the work instruction number and the PIN included in the PIN unlock request (sequence S205).
Specifically, as described in sequence S164 (FIG. 8), the control unit 190 uses the safety measure management data stored in the storage unit 140 based on the work instruction number included in the PIN unlock request. , PIN unlock request The PIN lock from the person who has the PIN unlock request authority is based on whether the PIN read from the PIN unlock request is included in the PIN read from the storage unit 140. Determine whether it is a cancellation request.
The control unit 190, which is determined to be a PIN unlock request from a person who has the PIN lock request authority, releases the PIN lock by transitioning to an unlocked state in which the PIN is not locked (sequence S206). In the transition to the unlocked state, the control unit 190 "implements" the value in the corresponding state information storage column of the safety measure management data stored in the storage unit 140 (safety measures are implemented, but the PIN lock is It is done by rewriting to (a value indicating that it has not been done).
After performing the transition to the unlocked state, the control unit 190 controls the display unit 110 to display that the PIN lock has been released (sequence S207). To indicate that the PIN lock has been released, for example, the display unit 110 erases (hides) the icons indicating the PIN lock status (for example, the icons C412, C423, and C424 in FIG. 5) on the display screen. Is done by. Further, the control unit 190 outputs information indicating that the PIN lock has been released to the communication unit 130, and the communication unit 130 transmits the information to the maintenance worker terminal device 200 (sequence S208).
In the maintenance worker terminal device 200, the communication unit 230 receives the information indicating that the PIN lock has been released and outputs the information to the control unit 290. Then, the control unit 290 controls the display unit 210 to display that the PIN lock has been released (sequence S209). To indicate that the PIN lock has been released, for example, when the display unit 210 displays a diagram of each area shown in FIG. 5, the icons (icons C412, C423, C424) indicating the PIN lock status are deleted (not displayed). To be done by).
After confirming that the PIN lock has been released, the maintenance worker performs a display request operation of the work completion report form on the operation input unit 220. This work completion report form is a form for a maintenance worker to create a work completion report for reporting on the maintenance work performed. The work completion report includes items for safety confirmation, such as check items for whether or not all maintenance workers have been evacuated. When the operation input unit 220 receives the display request operation of the work completion report form, the control unit 290 reads out the work completion report form stored in advance by the storage unit 240 in response to the request. Then, the control unit 290 controls the display unit 210 to display the work completion report form (sequence S210).
Then, the operation input unit 220 receives an input operation of necessary items in the work completion report form, and the control unit 290 generates a work completion report according to the input operation received by the operation input unit 220 (sequence S211). Then, when the operation input unit 220 receives the transmission operation of the work completion report, the control unit 290 transmits the generated work completion report to the central control device 100 via the communication unit 230 (sequence S212).
As described above, in principle, the PIN lock and PIN unlock are performed in response to the request from the maintenance worker terminal device 200, but the maintenance worker terminal device 200 is out of order, the battery is insufficient, or the radio wave condition. In case communication is not possible due to a defect, or when there is no authorized person who can make a PIN lock request or PIN unlock request, the central controller 100 can be exceptionally operated to perform PIN lock or PIN unlock. You may. FIG. 11 is a sequence showing an operation example of the railway traffic control system 1 when the PIN lock is released by operating the central control device 100 after the PIN lock is activated by the series of operations shown in FIG. 8 or 9. It is a figure. Hereinafter, the PIN unlock performed by operating the central control device 100 will be referred to as "PIN unlock by the master key".
Sequence S221 is similar to sequence S201 (FIG. 10). However, on the PIN input screen, the display unit 210 sends an e-mail to the commander in the central command room in order to request the PIN unlock without inputting the PIN, in addition to the unlock request button B32 described in FIG. Display an email send button that provides a means. When the person who has the authority to request the PIN unlock is absent, the maintenance worker presses the mail transmission button (for example, touches on the screen) as an operation for requesting the PIN unlock by the master key. When the operation input unit 220 receives this pressing operation (sequence S222), the control unit 290 provides a mail transmitting means as described in the sequence S183 (FIG. 9) (sequence S223). The method of making a PIN unlock request using the master key is not limited to the method of sending an email as described above. For example, the maintenance worker may make a voice call with the commander using a telephone device independent of the railway traffic control system 1 to request the PIN unlock by the master key.
In the central control device 100, when the communication unit 130 receives an e-mail from the maintenance worker terminal device 200, the display unit 110 displays the e-mail and prompts the commander to confirm. This will display a PIN unlock request with the master key (Sequence S224). After that, when the operation input unit 120 receives the PIN unlock operation by the master key (sequence S225), the control unit 190 performs a process of confirming that the predetermined procedure has been executed (sequence S226). The predetermined procedure referred to here is a procedure for confirming that there is no danger even if the PIN lock is released and the safety measures are released. For example, the control unit 190 reads a message such as "Please dispatch a confirmation person to confirm the safety of the site" stored in advance by the storage unit 140, and controls the display unit 110 to display the message. After reading this message, the commander either goes to the maintenance work area by himself or calls the work base closest to the maintenance work area to request a safety confirmation. After the safety confirmation is completed, the commander performs an operation indicating the completion of the safety confirmation at the operation input unit 120.
After confirming that the predetermined procedure has been executed, the control unit 190 releases the PIN lock state (sequence S227). For example, in the release operation of the sequence S225, the operation input unit 120 receives the input of the work instruction number by the commander, and the control unit 190 receives the safety measure management data described in FIG. 6 according to the work instruction number. Rewrite the value in the status information storage field of "Lock" to "Implement". Hereinafter, the sequences S228 to S233 are the same as the sequences S207 to S212 of FIG.
In this way, when the central control device 100 accepts the PIN unlock by the master key, it can not communicate due to a failure of the maintenance worker terminal device 200, a shortage of batteries, or a poor radio wave condition, or a PIN unlock request. You can unlock the PIN even if there is no authorized person to do it. By unlocking the PIN lock, the safety measures can be released and the railway traffic control system 1 can be restored.
FIG. 12 is a sequence diagram showing an operation example of the railway traffic control system 1 when the central control device 100 releases the safety measure after the PIN lock is released by the series of operations of FIG. 10 or FIG. When the communication unit 130 receives the work completion report transmitted in the sequence S212 of FIG. 10 or the sequence S233 of FIG. 11, the control unit 190 controls the display unit 110 to display the work completion report (sequence S261).
As mentioned above, the work completion report includes safety confirmation items. Therefore, the commander can confirm the safety by referring to the displayed work completion report and determine whether or not the safety measures may be canceled. Therefore, the commander confirms the work completion report displayed by the display unit 110, determines whether or not there is a problem, and inputs the confirmation result (determination result of the presence or absence of a problem) in the operation input unit 120. In the example of FIG. 12, the operation input unit 120 accepts an input operation of a confirmation result indicating that there is no problem (sequence S262).
Then, the control unit 190 generates a work completion report acceptance notification, which is a notification indicating that there is no problem in the work completion report, based on the input operation received by the operation input unit 120, and outputs the notification to the communication unit 130. The communication unit 130 transmits this acceptance notification to the maintenance worker terminal device 200 (sequence S263). In the maintenance worker terminal device 200, the communication unit 230 receives the acceptance notification from the central control device 100, and the control unit 290 displays the acceptance notification on the display unit 210 (sequence S264).
In addition, the operation input unit 120 receives an input operation instructing the release of the safety measure by the commander who confirmed the safety in the work completion report, and outputs information indicating the accepted input operation to the control unit 190 (sequence S265). .. For example, the operation input unit 120 has push buttons for instructing the restart of power supply for each predetermined section, and accepts the push buttons to be pressed. Then, the operation input unit 120 outputs to the control unit 190 information instructing the restart of power supply to the section corresponding to the pressed push button. Further, the operation input unit 120 has push buttons for instructing the release of vehicle entry prohibition for each predetermined section, and accepts the push buttons. Then, the operation input unit 120 outputs to the control unit 190 information instructing the release of the vehicle entry prohibition to the section corresponding to the pressed push button. In the example of FIG. 12, the commander presses a push button for instructing the restart of power supply to the maintenance work area and a push button for instructing the vehicle entry prohibition release to the maintenance work area. Then, the operation input unit 120 outputs the information instructing the restart of the power supply to the maintenance work area and the information instructing the release of the prohibition of vehicle entry into the maintenance work area to the control unit 190.
Then, the control unit 190 controls the target device 900 so as to release the maintainable state and return to the normal state (that is, release the safety measure) according to the information output from the operation input unit 120. At that time, the control unit 190 refers to the safety measure management data stored in the storage unit 140, determines whether or not the PIN lock for the safety measure to be released is released in all maintenance work, and determines whether or not the PIN lock is released in all maintenance work. Only when it is determined that the safety measures have been released during the work, the safety measures will be released.
That is, when multiple maintenance tasks are performed, even if the PIN lock is released in one maintenance task, if the PIN lock is enabled in the other maintenance tasks, the safety measures will be continued. It is necessary to ensure the safety of maintenance workers. Therefore, the control unit 190 releases the safety measure only when the PIN lock is released in all the maintenance work.
Specifically, when the control unit 190 acquires the information instructing the restart of the power supply to the maintenance work area, the control unit 190 refers to the safety measure management data and states about the power supply stop for the maintenance work area indicated by the acquired information. Determines if there is a line whose value in the information storage field is "locked". For example, when the safety measure 3 in FIG. 6 corresponds to the power supply stop to the maintenance work area, the control unit 190 refers to all the status information storage columns in the column of the safety measure 3, and the value is ". Determine if there is a "locked" column. Then, the control unit 190 performs the process of restarting the power supply only when it is determined that there is no row whose value is "locked". On the other hand, when it is determined that there is a line whose value is "locked", for example, the control unit 190 controls the display unit 110 and sets the work instruction number of the line whose value is "locked". , Display a message that the safety measures cannot be canceled.
If it is determined that there is no row whose value is "locked", the control unit 190 sends control information instructing the power control device 910 to restart the power supply to the maintenance work area via the control information communication unit 150. Is transmitted to the power controller 910 (sequence S266). According to this control information, the power control device 910 resumes power supply to the designated section (maintenance work area) (sequence S271).
Similarly, when the control unit 190 acquires the information instructing the release of the vehicle entry prohibition to the maintenance work area, the control unit 190 refers to the safety measure management data and provides status information regarding the vehicle entry prohibition to the maintenance work area indicated by the acquired information. Determines if there is a row whose storage field value is "locked". Then, when it is determined that there is no line whose value is "locked", the control unit 190 controls the control information instructing the signal control device 920 to cancel the signal display prohibiting the vehicle from entering the maintenance work area. It is transmitted to the signal control device 920 via the information communication unit 150 (sequence S267). According to this control information, the signal control device 920 releases the control for displaying the signal indicating that the vehicle is prohibited from entering the designated section (maintenance work area) for the traffic signal to be controlled (sequence S272).
The power control device 910 that has completed the process of resuming the power supply to the designated section in the sequence S271 outputs information indicating that the power supply has been restarted to the central control device 100 (sequence S273). Similarly, the signal control device 920 that has completed the process of canceling the signal display of the vehicle entry prohibition to the designated section in the sequence S272 outputs the information indicating that the vehicle entry prohibition is canceled to the central control device 100 ( Sequence S274). In the central control device 100, the control unit 190 acquires the information transmitted from the target device 900 via the control information communication unit 150. Then, the control unit 190 transmits information indicating that the safety measure has been released to the maintenance worker terminal device 200 via the communication unit 130 based on the acquired information (sequence S275). In the maintenance worker terminal device 200, the communication unit 230 receives the above information from the control unit 190 and outputs it to the control unit 290, and the control unit 290 displays on the display unit 210 that the safety measure has been released. (Sequence S291).
Further, the control unit 190 causes the display unit 110 to display that the safety measure has been released (sequence S281). To indicate that this safety measure has been released, for example, on the screen described in FIG. 5, the brightness of the track is returned to the normal display, and the icon marked with a cross such as the icon C411 is deleted (not displayed). ) Is done by. After that, the control unit 190 controls the display unit 210 so as to close the display window of the work instruction according to the operation received by the operation input unit 220.
Next, the operation of the central control device 100 will be described with reference to FIGS. 13 to 18. 13 to 18 are flowcharts showing the processing procedure performed by the central control device 100. FIG. 13 is a flowchart showing an outline of the processing procedure performed by the central control device 100. When the central control device 100 needs maintenance work due to an accident, periodic maintenance, inspection, or the like, the central control device 100 performs the processing shown in the figure for each maintenance work.
First, the central control device 100 generates a work instruction according to the operation of the commander and transmits it to the maintenance worker terminal device 200 (step S401). Next, the central control device 100 implements safety measures according to the permission application transmitted from the maintenance worker terminal device 200 (step S402). After that, the central control device 100 performs the PIN lock in response to the PIN lock request transmitted from the maintenance worker terminal device 200 or by the PIN lock using the master key (step S403). Then, the central control device 100 releases the PIN lock in response to the PIN unlock request sent from the maintenance worker terminal device 200 after the maintenance work is completed, or by unlocking the PIN with the master key (step S404). After that, the central controller 100 releases the safety measure (step S405).
FIG. 14 is a flowchart showing a processing procedure in which the central control device 100 generates a work instruction according to the operation of the commander and transmits it to the maintenance worker terminal device 200. The processing of the figure is performed in step S401 (FIG. 13). First, in the central control device 100, when the operation input unit 120 receives the display request of the work instruction manual creation form by the commander, the control unit 190 reads out the work instruction manual creation form stored in the storage unit 140. It is displayed on the display unit 110 (step S421). This process corresponds to the process of sequence S101 (FIG. 7).
Next, the operation input unit 120 receives an input operation of necessary items by the commander for the work instruction form creation form displayed by the display unit 110 (step S422). The necessary items for the operation input unit 120 to accept the input operation include the PIN of the PIN lock request authority and the PIN unlock request authority. The PIN lock request authority and the PIN unlock request authority may be one person or a plurality of persons. Further, the PIN lock request authority and the PIN unlock request authority may be the same or different. Then, the control unit 190 generates a work instruction according to the input operation received by the operation input unit 120, adds a work instruction number to the generated work instruction, and outputs the work instruction to the communication unit 130 (step S423). .. The processing of steps S422 and S423 corresponds to the processing of sequence S102.
Then, the communication unit 130 transmits the work instruction sheet output from the control unit 190 together with the work instruction sheet number to the communication unit 230 of the maintenance worker terminal device 200 (step S424). Here, the control unit 190 works on the work instruction sheet for the maintenance worker terminal device 200 possessed by the PIN lock request authority and the PIN unlock request authority based on the PIN input in step S422. Send with the instruction number. Also in the following description, transmission from the control unit 190 to the maintenance worker terminal device 200 is performed to the maintenance worker terminal device 200 possessed by the PIN lock requesting authority and the PIN unlock requesting authority. The process of step S402 corresponds to the process of sequence S103. After that, the process of FIG. 14 is completed, and the process proceeds to step S402 (FIG. 13).
FIG. 15 is a flowchart showing a processing procedure in which the central control device 100 implements safety measures. The processing of the figure is performed in step S402 (FIG. 13). First, the communication unit 130 waits for the permission application sent from the maintenance worker terminal device 200 (step S441). Then, when the communication unit 130 receives the permission application from the maintenance worker terminal device 200, the control unit 190 displays the permission application on the display unit 110 (step S442). The processing of steps S441 and S442 corresponds to the processing of sequence S125 (FIG. 7).
After that, the operation input unit 120 waits for the input operation of the confirmation result of the permission application by the commander (step S443). This process corresponds to the process of sequence S126. When the operation input unit 120 receives the input operation of the confirmation result, the control unit 190 determines whether or not the confirmation result indicates that there is no problem (step S444). For example, when the commander inputs "OK" on the keyboard of the operation input unit 120, the control unit 190 determines that there is no problem. On the other hand, when the commander inputs "NG" and then inputs the content of the deficiency, the control unit 190 determines that there is a problem. When it is determined that there is a problem (step S444: NO), the control unit 190 outputs the deficiency content included in the confirmation result to the communication unit 130, and the communication unit 130 outputs the deficiency content to the maintenance worker terminal device 200. Send to (step S451). After that, the process returns to step S441 and waits for the re-transmission of the permission application from the maintenance worker terminal device 200.
On the other hand, if it is determined in step S444 that the confirmation result indicates that there is no problem (step S444: YES), the control unit 190 outputs an acceptance notification indicating that there is no problem in the permission application to the communication unit 130, and the communication unit 190. 130 transmits the acceptance notification to the maintenance worker terminal device 200 (step S461). This process corresponds to the process of sequence S127. After that, the operation input unit 120 waits for an operation instructing the commander to implement the safety measure. Then, when the operation input unit 120 receives an input operation instructing the implementation of the safety measure, the operation input unit 120 outputs information indicating the accepted input operation to the control unit 190 (step S462). This process corresponds to the process of sequence S141.
Then, the control unit 190 controls the target device 900 so as to be in a maintainable state in which the maintenance work can be safely performed according to the information output from the operation input unit 120 (that is, implements safety measures). Step S463). This process corresponds to the process of sequences S142 to S145. After that, the control unit 190 detects that the safety measure is effective based on the information transmitted from the target device 900, and transmits information indicating that the safety measure is effective via the communication unit 130. And sends it to the maintenance worker terminal device 200 (step S464). This process corresponds to the process of sequence S148. Further, the control unit 190 causes the display unit 110 to display that the safety measure has been implemented (step S465). This process corresponds to the process of sequence S152. After that, the process of FIG. 15 is completed, and the process proceeds to step S403 (FIG. 13).
FIG. 16 is a flowchart showing a processing procedure in which the central control device 100 performs a PIN lock. The processing of the figure is performed in step S403 (FIG. 13). First, the communication unit 130 waits for the transmission of the PIN lock request from the maintenance worker terminal device 200. Then, when the communication unit 130 receives the PIN lock request from the maintenance worker terminal device 200, the communication unit 130 outputs the PIN lock request to the control unit 190. On the other hand, the operation input unit 120 waits for an operation requesting a PIN lock by the master key. Then, when the operation input unit 120 receives the operation requesting the PIN lock by the master key, the operation input unit 120 outputs the PIN lock request by the master key to the control unit 190 (step S501). The reception and display of the e-mail described in sequence S184 (FIG. 9) is also performed in step S501.
Upon receiving the output of the PIN lock request from the communication unit 130 or the operation input unit 120, the control unit 190 transmits whether or not the PIN lock request is output from the communication unit 130, that is, from the maintenance worker terminal device 200. Determine if it is a PIN lock request (step S502). When it is determined that the PIN lock request is output from the communication unit 130 (step S502: YES), the control unit 190 reads the work instruction number from the PIN lock request and stores it as described in sequence S164 (FIG. 8). Based on the work instruction number and PIN included in the PIN lock request, such as acquiring the PIN from Part 240, a process is performed to determine whether or not the PIN lock request is from a person who has the PIN lock request authority (step S511). , S512).
If it is determined that the request is not a PIN lock request from a person who has the PIN lock request authority (step S512: NO), the control unit 190 outputs a deficiency content indicating that the person does not have the PIN lock request authority to the communication unit 130, and outputs the deficiency content to the communication unit 130. The 130 transmits the content of the defect to the maintenance worker terminal device 200 that is the source of the PIN lock request (step S521). After that, the process returns to step S501 and waits for the PIN lock request again.
On the other hand, if it is determined in step S512 that the PIN lock request is from a person who has the PIN lock request authority (step S512: YES), the control unit 190 transitions to the PIN lock state (step S531). This process corresponds to the process of sequence S165 (FIG. 8).
After that, the control unit 190 controls the display unit 110 to display that the PIN lock has been activated (step S532). This process corresponds to the process of sequence S166. Further, the control unit 190 outputs information indicating that the PIN lock has been activated to the communication unit 130, and the communication unit 130 transmits the information to the maintenance worker terminal device 200 (step S533). This process corresponds to the process of sequence S167. After that, the process of FIG. 16 is completed, and the process proceeds to step S404 (FIG. 13). On the other hand, if it is determined in step S502 that the PIN lock request is output from the operation input unit 120 (step S502: NO), the process proceeds to step S531. That is, the central control device 100 is required to lock the PIN with the master key, and performs the PIN lock based on the request.
FIG. 17 is a flowchart showing a processing procedure in which the central control device 100 releases the PIN lock. The processing of the figure is performed in step S404 (FIG. 13). First, the communication unit 130 waits for the transmission of the PIN unlock request from the maintenance worker terminal device 200. Then, when the communication unit 130 receives the PIN unlock request from the maintenance worker terminal device 200, the communication unit 130 outputs the PIN unlock request to the control unit 190. On the other hand, the operation input unit 120 waits for an operation requesting the PIN unlock by the master key. Then, when the operation input unit 120 receives the operation requesting the PIN unlock by the master key, the operation input unit 120 outputs the PIN unlock request by the master key to the control unit 190 (step S601). The reception and display of the e-mail described in sequence S222 (FIG. 11) is also performed in step S601.
Upon receiving the output of the PIN unlock request from the communication unit 130 or the operation input unit 120, the control unit 190 transmits whether or not the PIN unlock request is output from the communication unit 130, that is, from the maintenance worker terminal device 200. It is determined whether or not the PIN unlock request has been made (step S602). When it is determined that the PIN unlock request is output from the communication unit 130 (step S602: YES), the control unit 190 receives the work instruction number from the PIN unlock request as described in the sequence S164 (FIG. 8). Based on the work instruction number and PIN included in the PIN unlock request, such as acquiring the PIN from the storage unit 240, it is determined whether or not the PIN unlock request is from a person who has the PIN unlock request authority. Perform the processing (steps S611, S612).
If it is determined that the PIN unlock request is not from a person who has the PIN unlock request authority (step S612: NO), the control unit 190 outputs to the communication unit 130 the content of the deficiency that the PIN unlock request authority is not available. , The communication unit 130 transmits the content of the defect to the maintenance worker terminal device 200 of the PIN unlock request transmission source (step S621). After that, the process returns to step S601 and waits for the PIN unlock request again.
On the other hand, if it is determined in step S612 that the PIN unlock request is from a person who has the PIN unlock request authority (step S612: YES), the control unit 190 releases the PIN lock (step S641). This process corresponds to the process of sequence S206 (FIG. 10).
After that, the control unit 190 controls the display unit 110 to display that the PIN lock has been released (step S642). This process corresponds to the process of sequence S207. Further, the control unit 190 outputs information indicating that the PIN lock has been released to the communication unit 130, and the communication unit 130 transmits the information to the maintenance worker terminal device 200 (step S643). This process corresponds to the process of sequence S208. After that, the process of FIG. 17 is completed, and the process proceeds to step S405 (FIG. 13). On the other hand, when it is determined in step S602 that the PIN unlock request is output from the operation input unit 120 (step S602: NO), the control unit 190 confirms that the predetermined procedure described in the sequence S226 has been executed. Perform the process (step S631).
Then, the control unit 190 determines whether or not the safety is confirmed and the PIN lock can be released by the confirmation process in step S631 (step S632). For example, the control unit 190 determines whether or not the PIN lock can be released based on the presence or absence of the safety confirmation completion operation by the commander described in sequence S226. If it is determined that the PIN cannot be unlocked (step S632: NO), the process returns to step S631 and waits for the completion of the safety confirmation. On the other hand, if it is determined that the PIN lock can be released (step S632: YES), the process proceeds to step S641 to release the PIN lock.
FIG. 18 is a flowchart showing a processing procedure in which the central control device 100 releases the safety measure. The processing of the figure is performed in step S405 (FIG. 13). First, the operation input unit 120 waits for an input operation regarding the necessity of the work completion report by the commander (step S661). In FIG. 12, the case where the work completion report is performed has been described, but there may be cases where the work completion report is unnecessary. For example, in maintenance work over several days, the work completion report may be required only on the last day, and the work completion report may not be required on other days. Therefore, the operation input unit 120 waits for the commander to input the necessity of the work completion report.
Upon receiving the input operation regarding the necessity of the work completion report, the operation input unit 120 outputs the information indicating the necessity of the work completion report to the control unit 190. Then, the control unit 190 determines the necessity of the work completion report based on the information. If it is determined that the work completion report is unnecessary (step S662: NO), the process proceeds to step S691 to release the safety measures described later. On the other hand, when it is determined that the work completion report is necessary (step S662: YES), the control unit 190 transmits information indicating that the work completion report is necessary to the maintenance worker terminal device 200 via the communication unit 130. (Step S671).
Then, the communication unit 130 waits for transmission from the maintenance worker terminal device 200 in the work completion direction (step S72). When the communication unit 130 receives the work completion report, the control unit 190 controls the display unit 110 to display the work completion report (step S673). This process corresponds to the process of sequence S261 (Fig. 12).
After that, the operation input unit 120 waits for the commander to input the confirmation result of the work completion report. (Step S673). This process corresponds to the process of sequence S262. When the operation input unit 120 receives the input operation of the confirmation result, the control unit 190 determines whether or not the confirmation result indicates that there is no problem (step S674). For example, when the commander inputs "OK" on the keyboard of the operation input unit 120, the control unit 190 determines that there is no problem. On the other hand, when the commander inputs "NG" and then inputs the content of the deficiency, the control unit 190 determines that there is a problem. When it is determined that there is a problem (step S674: NO), the control unit 190 outputs the deficiency content included in the confirmation result to the communication unit 130, and the communication unit 130 outputs the deficiency content to the maintenance worker terminal device 200. Send to (step S679). After that, the process returns to step S672 and waits for the maintenance worker terminal device 200 to retransmit the work completion report.
On the other hand, if it is determined in step S674 that the confirmation result indicates that there is no problem (step S674: YES), the control unit 190 outputs an acceptance notification indicating that there is no problem in the work completion report to the communication unit 130, and communicates. The unit 130 transmits the acceptance notification to the maintenance worker terminal device 200 (step S675). This process corresponds to the process of sequence S263. After that, the operation input unit 120 waits for an input operation instructing the release of the safety measure by the commander who confirmed the safety in the work completion report. Then, when the operation input unit 120 receives an input operation instructing the release of the safety measure, the operation input unit 120 outputs information indicating the accepted input operation to the control unit 190 (step S681). This process corresponds to the process of sequence S265. Then, as described in sequences S262 to S274 (FIG. 12), the control unit 190 refers to the safety measure management data stored in the storage unit 140, and the PIN lock for the safety measure to be released is set in all maintenance work. Determine if it has been released (steps S682, S683).
If it is determined that there is maintenance work for which the PIN lock has not been released (step S683: NO), the process returns to step S682 and waits for the PIN lock to be released for all maintenance work. On the other hand, if it is determined in step S683 that the PIN lock has been released in all maintenance work (step S683: YES), the control unit 190 is in a maintainable state according to the information output from the operation input unit 120. Control the target device 900 so that it returns to the normal state (that is, the safety measure is released. Step S684). This process corresponds to the process of sequences S266 to S274 (Fig. 12).
After that, the control unit 190 detects that the safety measure has been released based on the information transmitted from the target device 900, and provides information indicating that the safety measure has been released to the maintenance worker via the communication unit 130. It is transmitted to the terminal device 200 (step S685). This process corresponds to the process of sequence S275. Further, the control unit 190 causes the display unit 110 to display that the safety measure has been released (step S686). This process corresponds to the process of sequence S281. After that, the process of FIG. 18 is terminated.
Next, the operation of the maintenance worker terminal device 200 will be described with reference to FIGS. 19 to 23. 19 to 23 are flowcharts showing the processing procedure performed by the maintenance worker terminal device 200. FIG. 19 is a flowchart showing an outline of the processing procedure performed by the maintenance worker terminal device 200. The maintenance worker terminal device 200 performs the process shown in the figure when the power supply is connected (ON).
First, the maintenance worker terminal device 200 waits for the maintenance worker to input the ID and password, performs the login process, and displays the initial screen (step S701). This process corresponds to the process of sequences S111 to S112. Then, the control unit 290 of the maintenance worker terminal device 200 confirms whether or not there is an input operation by the maintenance worker in the operation input unit 220 and whether or not the communication unit 230 receives a wireless signal (step S702).
Then, the control unit 290 determines whether or not the operation input unit 220 has accepted the logout operation (step S703). When it is determined that the logout operation has been accepted (step S703: YES), the control unit 290 performs the logout process, and the display unit 210 displays the login screen (step S704). After that, the process returns to step S701 and waits for the maintenance worker to log in.
On the other hand, if it is determined in step S703 that the logout operation is not accepted (step S703: NO), the control unit 290 determines whether or not the operation input unit 220 has accepted the operation requesting information display (step S711). ). In the operation for requesting information display, the maintenance worker selects a diagram for displaying information such as a railway route map or a power system diagram in the display screen selection area A25 in FIG. 3 (click a button on the screen). It is done by touching). When it is determined that the operation requesting the information display has been accepted (step S711: YES), the control unit 290 controls the display unit 210 to display the requested figure (step S712). Then, the process returns to step S702.
On the other hand, if it is determined in step S711 that the operation requesting information display is not accepted (step S711: NO), the control unit 290 determines the maintenance work status (step S721). The determination is made, for example, by the maintenance worker terminal device 200 inquiring the central control device 100 about the state of maintenance work.
If it is determined in step S721 that the work instruction has been received and before the permission application has been transmitted (step S721: state before the implementation of safety measures), the maintenance worker terminal device 200 performs a process of generating and transmitting the permission application (step S721). S722), then return to step S702. On the other hand, if it is determined in step S721 that the permission application has been transmitted and before the PIN is locked (step S721: the state before the PIN lock), the maintenance worker terminal device 200 performs a process for requesting the PIN lock (step S723). , Then return to step S702.
On the other hand, if it is determined in step S721 that the PIN is locked (step S721: PIN lock enabled state), the maintenance worker terminal device 200 performs a process of requesting the PIN unlock (step S724). Then, the process returns to step S702. On the other hand, when it is determined in step S721 that the work completion report is requested (step S721: work completion report request acceptance state), the maintenance worker terminal device 200 generates and transmits the work completion report. The process is performed (step S725), and then the process returns to step S702.
On the other hand, in step S721, when it is determined that the information indicating that the safety measure has been released is received (step S721: the state after the safety measure is released), the maintenance worker terminal device 200 controls the display unit 110. Then, it is displayed that the safety measure has been released (step S726), and then the process returns to step S702. On the other hand, if it is not determined in step S721 that none of the above applies, the process returns to step S702 as it is. For example, the state before receiving the work order may correspond to this state.
FIG. 20 is a flowchart showing a processing procedure in which the maintenance worker terminal device 200 generates and transmits a permission application. The processing of the figure is performed in step S722 (FIG. 19). First, the control unit 290 displays the work instruction form transmitted from the central control device 100 on the display unit 210 as a permission application form (step S751). This process corresponds to the process of sequence S122 (Fig. 7). Next, when the operation input unit 220 accepts the input operation of the necessary items of the permission application, the control unit 290 generates the permission application based on the input received by the operation input unit 220 (step S752). This process corresponds to the process of sequence S123.
Further, the control unit 290 determines whether or not the operation input unit 220 has accepted an operation instructing the display of detailed information of the maintenance work (step S753). When it is determined that the operation for instructing the display of the detailed information has been accepted (step S753: YES), the control unit 290 causes the display unit 210 to display the detailed information according to the instruction (step S754). For example, when a maintenance worker wants to know the detailed procedure of maintenance work when confirming the instruction contents of the work instruction sheet, he / she performs an operation of requesting the display of a work manual or detailed data of a work target device. Then, the maintenance worker terminal device 200 displays a work manual and detailed data of the work target device according to the operation. Further, the maintenance worker terminal device 200 may display information related to the maintenance work such as weather information of the work area.
After that, returning to step S751, the control unit 290 continues to generate the permission application. On the other hand, if it is determined in step S753 that the operation for instructing the display of detailed information is not accepted (step S753: NO), the control unit 290 determines whether or not the input of necessary items is completed (step S761). ). For example, the control unit 290 determines whether or not the input of necessary items is completed based on whether or not the input completion button displayed by the display unit 110 is pressed. If it is determined that the input of the necessary items has not been completed (step S761: NO), the process returns to step S752, and the control unit 290 continues to generate the permission application.
On the other hand, when it is determined in step S761 that the input of necessary items is completed (step S761: YES), the control unit 290 outputs the generated permission application to the communication unit 230. Then, the communication unit 230 transmits the permission application to the central control device 100 (step S771). This process corresponds to the process of sequence S124. After that, the communication unit 230 waits for the transmission of the confirmation result of the permission application from the central control device 100. Then, when the communication unit 230 receives the confirmation result, the communication unit 230 outputs the confirmation result to the control unit 290 (step S772).
Then, the control unit 290 determines whether or not there is a problem in the permission application according to the confirmation result (step S773). For example, the control unit 290 determines whether or not there is a problem depending on whether the confirmation result is the acceptance notification transmitted in step S461 (FIG. 15) or the deficiency content transmitted in step S451. When it is determined that there is a problem (step S773: NO), the control unit 290 reads the deficiency content of the permission application from the confirmation result and displays the read deficiency content on the display unit 210 (step S781). After that, the process returns to step S751 to correct the permission application.
On the other hand, when it is determined that there is no problem (step S773: YES), the control unit 290 controls the display unit 210 to display that the permission application has been accepted. After that, the communication unit 230 waits for the transmission of information indicating that the safety measures are effective from the central control device 100. Upon receiving the information, the communication unit 230 outputs the received information to the control unit 290 (step S792). Then, the control unit 290 causes the display unit 210 to display that the safety measure is effective based on the information output from the communication unit 230 (step S793). This process corresponds to the process of sequence S151 (FIG. 7). After that, the process of FIG. 20 is completed, and the process returns to step S702 (FIG. 19).
FIG. 21 is a flowchart showing a processing procedure in which the maintenance worker terminal device 200 makes a PIN lock request. The processing of the figure is performed in step S723 (FIG. 19). First, the control unit 290 controls the display unit 210 according to the display request of the PIN input screen received by the operation input unit 220 to display the PIN input screen (step S801). This process is the process of the sequence S161 (FIG. 8). Equivalent to. After that, the operation input unit 220 waits for the input operation and outputs information indicating the content of the received input operation to the control unit 290 (step S802). This process is sequence S162 Then, the control unit 290 determines whether or not the operation input unit 220 has accepted the PIN input operation and the PIN lock request operation (step S803). When it is determined that these operations have been accepted (step S803: YES), the control unit 290 generates a PIN lock request including the work instruction number and the PIN and outputs the PIN lock request to the communication unit 230. Then, the communication unit 230 transmits the PIN lock request to the central control device 100 (step S811). This process corresponds to the process of sequence S163. Then, the process proceeds to step S812.
On the other hand, in step S803, when it is determined that the operation input unit 220 does not accept the PIN input operation and the PIN lock request operation (step S803: NO), in the control unit 290, the operation input unit 220 uses the PIN with the master key. As an operation for requesting the lock, it is determined whether or not the operation of pressing the mail transmission button is accepted (step S841). When it is determined that the operation of pressing the mail transmission button is accepted (step S841: YES), the control unit 290 provides the mail transmission means and generates an e-mail according to the character input operation. Then, when the operation input unit 220 receives the e-mail transmission operation, the control unit 290 transmits an e-mail to the central control device 100 via the communication unit 230 (step S842). This process corresponds to the process of sequence S183. Then, the process proceeds to step S812. On the other hand, if it is determined in step S841 that the operation of pressing the mail transmission button is not accepted (step S841: NO), the process returns to step S802, and the operation input unit 220 waits for the input operation.
In step S812, the communication unit 230 waits for the confirmation result of the PIN lock request. Then, when the communication unit 230 receives the confirmation result, the communication unit 230 outputs the received confirmation result to the control unit 290. Then, the control unit 290 determines whether or not there is a problem in the PIN lock request according to the confirmation result (step S813). For example, the control unit 290 determines whether or not there is a problem depending on whether the confirmation result is the PIN valid notification transmitted in step S533 (FIG. 16) or the deficiency content transmitted in step S521. When it is determined that there is a problem (step S813: NO), the control unit 290 reads the deficiency content of the PIN lock request from the confirmation result and displays the read deficiency content on the display unit 210 (step S821). After that, the process returns to step S802, and the operation input unit 220 waits for an input operation.
On the other hand, when it is determined that there is no problem (step S813: YES), the control unit 290 controls the display unit 210 to display that the PIN lock has been activated (step S831). This process corresponds to the process of sequence S168. After that, the process of FIG. 21 is finished, and the process returns to step S702 (FIG. 19).
FIG. 22 is a flowchart showing a processing procedure in which the maintenance worker terminal device 200 makes a PIN unlock request. The processing of the figure is performed in step S724 (FIG. 19). First, the control unit 290 controls the display unit 210 according to the display request of the PIN input screen received by the operation input unit 220 to display the PIN input screen (step S851). This process is the process of the sequence S201 (FIG. 10). Equivalent to. After that, the operation input unit 220 waits for the input operation and outputs information indicating the content of the received input operation to the control unit 290 (step S852). This process corresponds to the process of sequence S202.
Then, the control unit 290 determines whether or not the operation input unit 220 has accepted the PIN input operation and the PIN unlock request operation (step S853). When it is determined that these operations have been accepted (step S853: YES), the control unit 290 controls the display unit 210 to display a warning that the safety measure can be released for a predetermined time (step S861). This process corresponds to the process of sequence S203. After that, the control unit 290 generates a PIN unlock request including the work instruction number and the PIN and outputs the PIN unlock request to the communication unit 230. Then, the communication unit 230 transmits the PIN unlock request to the central control device 100 (step S811). This process corresponds to the process of sequence S204. Then, the process proceeds to step S863.
On the other hand, in step S853, when it is determined that the operation input unit 220 does not accept the PIN input operation and the PIN lock request operation (step S853: NO), in the control unit 290, the operation input unit 220 uses the PIN with the master key. As an operation for requesting the unlock, it is determined whether or not the operation of pressing the mail transmission button is accepted (step S891). When it is determined that the operation of pressing the mail transmission button is accepted (step S891: YES), the control unit 290 provides the mail transmission means and generates an e-mail according to the character input operation. Then, when the operation input unit 220 receives the e-mail transmission operation, the control unit 290 transmits an e-mail to the central control device 100 via the communication unit 230 (step S892). This process corresponds to the process of sequence S223. Then, the process proceeds to step S863. On the other hand, if it is determined in step S891 that the operation of pressing the mail transmission button is not accepted (step S891: NO), the process returns to step S852 and the operation input unit 220 waits for the input operation.
In step S863, the communication unit 230 waits for the confirmation result of the PIN unlock request. Then, when the communication unit 230 receives the confirmation result, the communication unit 230 outputs the received confirmation result to the control unit 290. Then, the control unit 290 determines whether or not there is a problem in the PIN unlock request according to the confirmation result (step S864). For example, the control unit 290 determines whether or not there is a problem depending on whether the confirmation result is the PIN unlock notification transmitted in step S633 (FIG. 17) or the deficiency content transmitted in step S621. When it is determined that there is a problem (step S864: NO), the control unit 290 reads the deficiency content of the PIN unlock request from the confirmation result and displays the read deficiency content on the display unit 210 (step S881). After that, the process returns to step S852, and the operation input unit 220 waits for an input operation.
On the other hand, if it is determined in step S864 that there is no problem (step S864: YES), the control unit 290 controls the display unit 210 to display that the PIN lock has been released (step S871). This process corresponds to the process of sequence S209. After that, the process of FIG. 22 is completed, and the process returns to step S702 (FIG. 19).
FIG. 23 is a flowchart showing a processing procedure in which the maintenance worker terminal device 200 generates and transmits a work completion report. The processing of the figure is performed in step S725 (FIG. 19). First, the control unit 290 reads out the work completion report form stored in advance by the storage unit 240 according to the display request operation of the work completion report form received by the operation input unit 220. Then, the control unit 290 controls the display unit 210 to display the work completion report form (step S901). This process corresponds to the processes of the sequences S210 (FIG. 10) to S231 (FIG. 11).
Then, the operation input unit 220 waits for the input operation of the necessary items in the work completion report form, and outputs the input necessary items to the control unit 290 (step S902). Then, the control unit 290 generates a work completion report according to the necessary items output from the operation input unit 220. Then, when the operation input unit 220 receives the transmission operation of the work completion report, the control unit 290 transmits the generated work completion report to the central control device 100 via the communication unit 230 (Sup S903). After that, the communication unit 230 waits for the confirmation result of the work completion report. Then, when the communication unit 230 receives the confirmation result, it outputs the received confirmation result to the control unit 290 (step S904).
Then, the control unit 290 determines whether or not there is a problem in the PIN unlock request according to the confirmation result (step S905). For example, the control unit 290 determines whether or not there is a problem depending on whether the confirmation result is the acceptance notification transmitted in step S675 (FIG. 18) or the deficiency content transmitted in step S679. When it is determined that there is a problem (step S905: NO), the control unit 290 reads the deficiency content of the PIN unlock request from the confirmation result and displays the read deficiency content on the display unit 210 (step S911). After that, the process returns to step S902, and the operation input unit 220 waits for an input operation.
On the other hand, if it is determined that there is no problem (step S773: YES), the communication unit 230 waits for the transmission of information indicating that the safety measure has been released (step S921). Then, when the communication unit 230 receives the information, the control unit 290 causes the display unit 210 to display that the safety measure has been released according to the information (step S922). After that, the process of FIG. 23 is finished, and the process returns to step S702 (FIG. 19).
As described above, in response to the request from the maintenance worker terminal device 200, the central control device 100 transitions to the PIN lock state, which is a state in which the maintainable state is maintained. Then, when the central control device 100 transitions to the PIN lock state, the maintenance worker terminal device 200 displays that the PIN lock has been activated. As a result, the central control device 100 is in a state in which the safety measures cannot be released in principle without the request from the maintenance worker terminal device 200, that is, the request from the maintenance worker, which causes the maintenance worker terminal device 200 to cancel. Since it is displayed, it is possible to prevent the safety measures from being released and endangering the worker due to misrecognition or erroneous operation of the commander in the central command room. That is, the risk of endangering maintenance workers can be reduced. In addition, since the maintenance worker can confirm that the safety measures have been maintained, it is possible to reduce the risk of causing anxiety to the maintenance worker. Furthermore, since the maintenance worker can start the maintenance work after confirming that the safety measures are maintained, the maintenance work is not carried out due to the commander's misrecognition of the situation or the wrong operation. It is possible to prevent endangering personnel.
In addition, since both the central control device 100 and the maintenance worker terminal device 200 display information on the control status of the target device 900, such as information that the PIN is locked, both the commander and the repair worker are targeted. You can check the control status of the device 900.
In addition, when the central control device 100 accepts the PIN lock by the master key, the maintenance worker terminal device 200 is in a state where communication is not possible due to a failure, battery shortage, or poor radio wave condition, or an authorized person who can make a PIN lock request. You can lock the PIN even when you are absent. As a result, it is possible to reduce the risk of causing anxiety to the maintenance worker and the risk of endangering the worker.
In addition, the central control device 100 accepts the PIN unlock by the master key, so that the maintenance worker terminal device 200 cannot communicate due to a failure, battery shortage, or poor radio wave condition, or the PIN unlock request can be made. The PIN lock can be released even when the person is absent. By unlocking the PIN lock, the safety measures can be released and the railway traffic control system 1 can be restored.
Further, the central control device 100 controls the target device 900 so that it can be maintained based on the permission application (instruction confirmed information) transmitted from the maintenance worker terminal device 200. Therefore, the maintenance worker can take safety measures while understanding the maintenance work. As a result, maintenance work can be carried out promptly, safety measures can be eliminated in a relatively short time, and the railway traffic control system can be restored.
Further, the maintenance worker terminal device 200 transmits a PIN lock request when the maintenance worker terminal device 200 is in the maintainable state. That is, since the PIN lock request is transmitted in a timely manner only when the PIN lock is possible, it is possible to suppress the unnecessary transmission of the PIN lock request and suppress the power consumption of the maintenance worker terminal device 200.
Further, since the central control device 100 determines whether or not the PIN lock request is made by the PIN lock requesting authority based on the PIN included in the PIN lock request, it is possible to prevent an unauthorized PIN lock request by an unauthorized person.
Further, the central control device 100 releases the PIN lock based on the PIN unlock request from the maintenance worker terminal device 200. That is, since the PIN lock is not released in principle unless there is a PIN unlock request from the maintenance worker terminal device 200, the PIN lock is released due to an erroneous recognition or operation of the commander in the central command room, and the safety measure is further released. It is possible to avoid such a situation and ensure the safety of maintenance workers.
Further, since the central control device 100 determines whether or not the PIN unlock request is a PIN unlock request by the PIN unlock request authorized person based on the PIN included in the PIN unlock request, it prevents an unauthorized PIN unlock request by an unauthorized person. It is possible to ensure the safety of maintenance workers more reliably.
A program for realizing all or part of the functions of the central control device 100 or the maintenance worker terminal device 200 is recorded on a computer-readable recording medium, and the program recorded on the recording medium is stored in the computer system. The processing of each part may be performed by reading and executing. The term "computer system" as used herein includes hardware such as an OS and peripheral devices. In addition, the "computer system" shall include the homepage providing environment (or display environment) if the WWW system is used. Further, the "computer-readable recording medium" refers to a portable medium such as a flexible disk, a magneto-optical disk, a ROM, or a CD-ROM, or a storage device such as a hard disk built in a computer system. Further, a "computer-readable recording medium" is a communication line for transmitting a program via a network such as the Internet or a communication line such as a telephone line, and dynamically holds the program for a short period of time. In that case, it also includes the one that holds the program for a certain period of time, such as the volatile memory inside the computer system that is the server or client. Further, the above-mentioned program may be a program for realizing a part of the above-mentioned functions, and may be a program for realizing the above-mentioned functions in combination with a program already recorded in the computer system.
Although the embodiments of the present invention have been described in detail with reference to the drawings, the specific configuration is not limited to this embodiment, and design changes and the like within a range not deviating from the gist of the present invention are also included.
1 Railroad traffic control system 100 Central controller 110 Display 120 Operation input section 130 Communication Department 140 memory 150 Control Information and Communication Department 190 Control 200 Maintenance worker terminal equipment 210 Display 220 Operation input section 230 Communication Department 240 storage 290 Control unit 910 power controller 920 signal controller
24 sheets
Sheet 1 Sheet 2 Sheet 3 Sheet 4 Sheet 5 Sheet 6 Sheet 7 Sheet 8 Sheet 9 Sheet 10 Sheet 11 Sheet 12 Sheet 13 Sheet 14 Sheet 15 Sheet 16 Sheet 17 Sheet 18 Sheet 19 Sheet 20 Sheet 21 Sheet 22 Sheet 23 Sheet 24
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| Document | Relation | Office | Cited during |
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| WO2018158928A1 | Cited by | World Intellectual Property Organization (WIPO) | International search |
| JPWO2016207939A1 | Cited by | Japan | Search report |
| JP2021061058A | Cited by | Japan | Search report |
| WO2016207939A1 | Cited by | World Intellectual Property Organization (WIPO) | International search |
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| JPH06332917A | Cites | Japan | Examiner |
6 members in 3 offices
Priority claims2
| Document | Office | Kind | Date |
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| 2011002943 | Japan | A | |
| JP20110002943 | – | – | – |
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| US2012176217A1 | United States of America | A1 | |
| CN102582666A | China | A | |
| JP2012144113AThis record | Japan | A | |
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Numbers
- Publication
- 2012144113
- Publication, DOCDB
- 2012144113
- Publication, EPODOC
- JP2012144113
- Application
- 2943
- Application, DOCDB
- 2011002943
- Application, EPODOC
- JP20110002943
Titles2
- Japanese
- 制御システム、保守作業員端末装置および制御装置。
- English
- Control system, maintenance worker terminal device and control device.
Classification
- CPC, 1
- B61L23/06
- IPC, 2
- B61L23 06
- B66B5 00