Radio tag, display machine in radio tag communication system, and radio tag communication system for locking confirmation

The present invention relates to a wireless tag suitable for confirming whether or not a building such as a house or a building is locked, a display in a wireless tag communication system, and a wireless tag communication system for locking confirmation.

For example, as a conventional technique for remotely monitoring a locked portion in a building such as a house or a building, there is one described in Patent Document 1. In this prior art, the operating handle of the crescent of the window frame functions as an antenna, and the crescent is locked (the crescent is engaged with the crescent receiving member) or unlocked (the crescent is detached from the crescent receiving member). ), The radio signal generated by the oscillation circuit is transmitted via the operation handle, and this is received by the reception circuit of the alarm device to issue an alarm in a predetermined case.<patcit num="1"><text>Japanese Unexamined Patent Publication No. 2002-150438 (paragraph numbers 0019 to 0115, Fig. 1, Fig. 7, Fig. 8, Fig. 16, etc.)</text></patcit>

<p> However, in the above-mentioned prior art, a fixed power source (battery or the like) that supplies electric power to the oscillating circuit is required because the oscillating circuit generates a wireless signal transmitted from the operation handle of the crescent that functions as an antenna. For this reason, the circuit configuration becomes complicated and large, and further wiring work is required, so that installation and replacement cannot be easily performed, and the usability is poor. Therefore, an object of the present invention is to provide a lock confirmation wireless tag and a lock confirmation wireless tag communication system capable of remotely monitoring a locked portion in a building without requiring a fixed power source.</p>

<p> A first aspect of the present invention is an antenna for transmitting and receiving a radio signal to and from a tag reader, a modulation / demodulation circuit for modulating and demodulating the radio signal transmitted / received via the antenna, and a control means connected to the modulation / demodulation circuit; An IC chip provided with a power supply control circuit that extracts power from a radio signal and supplies a power supply voltage to the control means and the modulation / demodulation circuit, and the antenna and the IC chip provided between the antenna and the IC chip. It is a wireless tag characterized by having a switching means for switching between conducting and non-conducting. The invention of claim 2 is the wireless tag according to claim 1, wherein the switch means is closed corresponding to one of the locked state and the unlocked state of the opening / closing member, and the antenna and the IC chip are used. It is a wireless tag characterized by having a switching means which is opened corresponding to the other state and shuts off the antenna and the IC chip. The invention of claim 3 is the one of the one-side member and the other-side member of the locking member that engages with each other to realize the locked state and then disengages to the unlocked state in the wireless tag according to claim 2. It is a wireless tag characterized by being provided on a side member. The invention of claim 4 is an antenna for transmitting and receiving a radio signal to and from a tag reader, a modulation / demodulation circuit for modulating and demodulating the radio signal transmitted / received via the antenna, a control means connected to the modulation / demodulation circuit, and transmission from the reader. It relates to a power supply control circuit that extracts power from the radio signal and supplies a power supply voltage to the control means and the modulation / demodulation circuit, and a locked state or an unlocked state of the detection object detected by an external locking detecting means. The control means has a sensor for detecting a lock-related state amount, and the detection object is in the locked state or the unlocked state according to the lock-related state amount detected by the sensor. The radio tag is characterized in that it determines whether or not, and generates a signal for outputting the determination result to the reader. The invention of claim 5 comprises at least one tag reader having an antenna for transmitting and receiving wireless signals and having a power supply function by electromagnetic induction or microwave, and the wireless tag according to any one of claims 2 to 5. It is a display that can be used in a wireless tag communication system, and is a display that is connected to the tag reader and displays the locked state and the unlocked state of the opening / closing member to which each wireless tag is attached. The invention of claim 6 is the display according to claim 5, a means for outputting a confirmation command signal to the wireless tag via the tag reader, and a confirmation signal according to the response status of the wireless tag via the reader. The display is characterized by having means for receiving, and means for displaying the locked state and the unlocked state of each opening / closing member corresponding to each wireless tag according to the received confirmation signal. The invention of claim 7 is the display according to claim 6, wherein the display has means for outputting the confirmation command signal at predetermined time intervals or at any time. The invention of claim 8 comprises at least one tag reader having an antenna for transmitting and receiving radio signals and having an electromagnetic induction or microwave power supply function, and the wireless tag according to any one of claims 2 to 5. It is a wireless tag communication system including the display according to any one of Items 5 to 7. According to the inventions of claims 1 to 4, for example, in the unlocked state, the switch means is shut off and the transmission / reception function is dormant, while in the locked state, the switch means is conducted and the function is activated. It is possible to send and receive. Therefore, by detecting whether transmission / reception with the reader is possible, it is possible to remotely monitor whether the corresponding locked portion is in the locked state or the unlocked state, and the tag side receives the power during transmission / reception. It does not require a fixed power supply by inducing and using electric power based on wireless signals. Therefore, the circuit configuration can be simplified and miniaturized as compared with the conventional structure that requires a fixed power supply, and the installation and replacement can be performed relatively easily, so that the usability can be improved. According to the inventions of claims 5 to 7, for example, by arranging the display on the side of the entrance, the locked state of all the parts requiring locking in the building can be remotely monitored and displayed on the spot. Can eliminate the complexity of.</p>

<p> According to the present invention, it is possible to remotely monitor whether or not the corresponding locked portion is in the locked state or the unlocked state, and at the time of transmission / reception, the tag side induces and uses electric power based on the received wireless signal. Does not require a fixed power supply. Therefore, as compared with the conventional structure that requires a fixed power supply, the circuit configuration can be simplified and miniaturized, and the installation and replacement can be performed relatively easily, so that the usability can be improved.</p>

Hereinafter, embodiments of the present invention will be described with reference to the drawings. The first embodiment of the present invention will be described with reference to FIGS. 1 to 10. FIG. 1 is a system configuration diagram showing an overall schematic structure of a wireless tag wireless tag communication system for locking confirmation according to the present embodiment.

In FIG. 1, the buildings to which the present embodiment is applied (general houses in this example) are, in this example, the entrance space E equipped with the entrance door ED, the Japanese-style room J equipped with the window JW, and the first window. It is composed of a living room L equipped with (window A) LWA and a second window (window B) LWB, and a kitchen K equipped with a window KW and a door KD for a self-propelled door. The wireless tag communication system of the present embodiment includes the window JW of the Japanese-style room J, the first window LWA and the second window LWB of the living room L, and the window frame portion of the kitchen window KW (details will be described later). Wireless tags T1 to T4 provided on each of the receiving members), wireless tags T5 provided on the door KD for the kitchen K's door KD, and three readers 100A and 100B provided on the Japanese room J, living room L, and kitchen K, respectively. , 100C and a display device 200 provided in the entrance space E, for example, beside the entrance door ED and performing various displays according to an input signal (details will be described later).

Of the wireless tags T1 to T4, the wireless tag T1 attached to the window frame of the window JW of the Japanese-style room J will be described with reference to FIGS. 2 to 5. As shown in FIG. 1 above, the window JW is provided with two window frames 4 and 5. FIG. 2 is a perspective view showing the mounting structure of the wireless tag T1 to the window frame portion (the crescent device 1 according to the window frames 4 and 5; details will be described later), and FIG. 3 (a) is a side sectional view thereof. Yes, FIG. 3 (b) is a rear view seen from the direction III in FIG. 3 (a). In FIGS. 2, 3 (a), and 3 (b), the crescent device 1 is composed of a crescent 2 and a locking piece (crescent receiving member) 3. The crescent 2 is arranged by being fixed to one window frame 4, and engages with the locking piece 3 fixed to the other window frame 5. The engaging member 6 and the engaging member 6 are locked to the locking piece 3. It is provided with an operation handle 7 for engaging and disengaging with respect to.

The operation handle 7 is formed of a material such as an aluminum alloy, and the engaging member 6 made of a tapered arc-shaped ridge is integrally formed with the operation handle 7. A shaft 8 is projected and fixed to the back surface side of the operation handle 7, and a stepped sleeve 11 is provided in a through hole 10 formed in a thick portion at the center of a casing 9 that constitutes the main portion of the crescent 2. It is rotatably supported via the shaft. The casing 9 is made of a metal material equivalent to that of the operation handle 7, and the casing 9 and the operation handle 7 are insulated from each other by a stepped sleeve 11. The operation handle 7 is shown in Fig. 2.

It is possible to rotate within a range of 180 ° in the circumferential direction (clockwise or counterclockwise) from the completely closed position shown in FIGS. 3 (a) and 3 (b). Returning to FIG. 1, the wireless tag T1 is provided on the locking piece 3 (see FIG. T described later for details). FIG. 4 shows a functional block diagram showing a detailed functional configuration of the wireless tag T1.

In FIG. 4, the wireless tag T1 is a switch that is arranged between the antenna 51 that transmits and receives wireless signals to and from the reader 100A, the IC chip 50, and the antenna 51 and the IC chip 50, and can conduct and cut off between them. It is composed of 52 (switch means; in this example, a contact type, for example, a pressure sensitive switch). The IC chip 50 is transmitted from a modulation / demodulation circuit 60 that modulates and demotes a radio signal transmitted / received via the antenna 51, a CPU 62 that is connected to the modulation / demodulation circuit 60 and has a RAM (storage means) 61, and a reader 100A. It is equipped with a power supply control circuit 63 that inputs the voltage generated to the 51 antenna based on the radio signal and supplies it to the CPU 62 and the modulation / demodulation circuit 60 as the power supply voltage.

FIG. 5 is a partially enlarged perspective view showing the detailed mounting state of the wireless tag T1. In FIG. 5, the wireless tag T1 is attached to the locking piece 3. Specifically, the switch 52 is fixed to the inner surface of the locking piece 3 (the side facing the engaging member 6 of the crescent 2), and the outside of the locking piece 3 (the engaging member 6 of the crescent 2). The IC chip 50 and the antenna 51 are fixed to the opposite side). Since the power received by the wireless IC tag decreases as the distance from the reader / writer increases, there is a problem that the wireless tag does not operate when the obtained power falls below a certain lower limit value. Therefore, the antenna is not limited to the one shown in the figure, and if necessary, for example, the antenna is provided along the window frame so as to surround the window to improve the antenna sensitivity and enable good communication with the reader (100). Measures can be taken. With such a structure, when the window JW of the Japanese-style room J is locked, the engaging member 6 presses the switch 52 as shown by the white arrow in FIG. 5, and as a result, the switch 52 is closed. The antenna 51 and the IC chip 50 are made conductive, and when the window JW is in the unlocked state, the switch 52 is opened to shut off the antenna 51 and the IC chip 50.

Of the wireless tags T1 to T4, the detailed configuration and detailed mounting structure are described by taking the wireless tag T1 attached to the window frame portion of the window JW of the Japanese-style room J (the crescent device 1 related to the window frames 4 and 5) as an example. Although the description has been given, the description of the other wireless tags T2 to T4 will be omitted because they have the same detailed configuration and the same mounting structure. Further, returning to FIG. 1, as described above, the wireless tag T5 is provided on the door KD for the kitchen K's own door. This door KD locks the door frame 42 fixed to the doorway 40 with an outward-opening door body 41 that can be opened and closed via a hinge 43, and the door body 41 is fixed to the door frame 42 and locked. It is provided with a locking tool 44 for the purpose and a handle 45 used for opening / closing the door body 41.

FIG. 6 is a perspective view showing a detailed structure in the vicinity of the lock. As shown in FIG. 6, when the locking tool 44 is rotated with a fingertip, the convex locking tool 46 protrudes from the door body 41 provided with the locking tool 44, and is positioned in the door frame 42 corresponding to this. Engage with the provided engagement hole 47 (see dashed arrow in the figure). The wireless tag T5 has the same IC chip 50, antenna 51, and switch 52 as the wireless tags T1 to T4, and although not shown, it is provided inside (or, for example, the engaging hole 47). Only the switch 52 is provided inside the engagement hole 47, and the IC chip 50 and the antenna 51 may be provided outside the hole 47, for example, in the door frame 42 while being electrically connected to the switch 52). Then, when the lock tool 44 is rotated and the door KD of the kitchen K is locked, the lock tool 46 presses the switch 52, and the switch 52 is closed like the wireless tags T1 to T4 to close the antenna 51. When the door KD is unlocked, the switch 52 is opened to shut off the antenna 51 and the IC chip 50.

FIG. 7 is a functional block diagram showing a detailed configuration of the readers 100A, 100B, and 100C. In FIG. 7, the reader 100A (or readers 100B, 100C) includes a CPU 101 that performs full control, a flash memory 102 that stores a program executed by the CPU 101, a SRAM 103 that stores data, a display unit 104, and the like. It has an operation unit 105, a modulation / demodulation circuit 107 that modulates and demodulates data (radio signal) transmitted / received via the antenna 106, and a power supply unit 110 for supplying power to each of the above units.

The power supply unit 110 inputs power from the main battery 111, the backup battery 112, the external power supply 113, the main battery 111, the backup battery 112, and the external power supply 113, and supplies a power supply voltage to each part such as the CPU 101 and the flash memory 102. It is composed of a power supply control circuit 114 and a power supply control circuit 114. When a radio signal is transmitted from the readers 100A to C configured as described above, the corresponding radio tags T1 to T5 induce a voltage based on the radio signal in the antenna 51 as described above, and the induced voltage is used as a power source. It is smoothed by the control circuit 63 and supplied to the CPU 62 and the modulation / demodulation circuit 60. The CPU 62 is started by supplying its power, and when it receives a command from the readers 100A to C, it reads out its own tag information (for example, an ID number as an identification number) stored in advance in the RAM 61 and sends it to the modulation / demodulation circuit 60. The modulation / demodulation circuit 60 modulates the tag information and transmits the tag information to the antennas 106 of the readers 100A to C via the antenna 51. The reader 100A collects the tag information transmitted from the wireless tags T1 as described above, the reader 100B collects the tag information transmitted from the wireless tags T2 and T3, and the reader 100C is transmitted from the wireless tags T4 and T5. The tag information is collected and transmitted to the above display 200. The power supply to the wireless IC tag is not limited to the electromagnetic induction method, and a microwave method that converts radio wave energy into electric power, such as a UHF band or 2.45 GHz band wireless IC tag, can also be adopted. In this case, there is an advantage that the wireless IC tag corresponding to different frequencies can be obtained by changing the shape and length of the antenna.

FIG. 8 is a front view showing the detailed structure of the display 200. In FIG. 8, in this example, the display 200 has a check operation button 201 (operation means) for transmitting and collecting wireless tag information of each wireless tag T1 to T5 all at once during operation, and a normal mode. A mode selection button 202 for selecting one of the "going out" modes, a mode indicator lamp 203 for displaying which of the above two modes is used, the window JW of the Japanese-style room W, and the window LWA of the living room L. , LWB, the window KW of the kitchen K, and the locked state indicator lamp 204 for displaying the locked state and the unlocked state of the door KD, respectively.

The most important feature of this embodiment is the detection target (window JW) corresponding to the display 200 according to the collection result (including non-collection, error, etc.) of the tag information of each tag T1 to T5 by the readers 100A to C. , LWA, LWB, KW, door KD) to display the locked and unlocked status. Hereinafter, the details of the communication control operation will be described separately with reference to FIGS. 9 and 10 by dividing into the above-mentioned "normal" mode and "going out" mode.

(1) Normal mode This normal mode is a mode for remotely monitoring and checking the locked state of the above-mentioned object to be detected in the house, and typically, the locks of various places are locked in the entrance space E immediately before going out. It is used when checking the status. FIG. 9 is a time chart showing the communication control operation of the display 200, the reader 100, and the wireless tag T in this normal mode (however, the signal transmission / reception relationship regarding the reader 100C, the wireless tags T4, and T5 related to the kitchen K is complicated. Not shown to avoid).

In FIG. 9, when the "normal" mode is selected with the mode selection button 202 of the display 200 and the check operation button 201 is operated, the confirmation command signals Sca1, Sca2, Sca3 are sent from the display 200 to the readers 100A, 100B, 100C. Are sent respectively. Each reader 100A to C that has input the confirmation command signals Sca1 to Sca1 to 3 transmits the response command signals Sra1 to 3 to the corresponding wireless tags T1 to 5, respectively, and the wireless tags T1 to 5 for the response command signals Sra1 to 3 respectively. The confirmation signals Sc1, Sc2, and Sc3 according to the response status of (in this example, whether the response signals Sr1 to Sr1 to 3 were received or whether the response signals Sr1 to 3 were not received within the predetermined time and timed out) are output to the display 200.

In the illustrated example, the first window with respect to the response command signal Sra2 transmitted from the reader 100B arranged in the living room L to the radio tag T2 of the first window LWA and the radio tag T3 of the second window LWB, respectively. Although the response signal Scr2 was received from the radio tag T2 of the LWA, the response signal was not received from the radio tag T3 of the second window LWB. Therefore, the reader 100B outputs a confirmation signal Sc2 to that effect to the display 200.

The display 200 collects the confirmation signals Sc1, Sc2, and Sc3 output from the readers 100A, 100B, and 100C, respectively, as described above. Here, as described above, in each of the wireless tags T1 to T4, if the window or door is locked, the antenna 51 and the IC chip 50 can conduct transmission and reception, and if they are not locked, the antenna 51 and the IC chip 50 Is blocked and transmission / reception becomes impossible. Based on this, the display 200 considers that the corresponding window or door is not locked for the wireless tag T for which the reader 100 could not receive the response signal Sr, and displays to that effect.

In the above example, the second window LWB for which the response signal has not been received from the wireless tag T3 is displayed to the effect that it is in the unlocked state (in detail, the locked state indicator lamp 204 is not lit. However, the locked state and the locked state are displayed. May be lit in a different color). FIG. 8 shows a display example in this case. In this example, in addition to the above-mentioned second window LWB, the response signal is not received by the reader 100C from the wireless tag T5 related to the door KD of the kitchen D, and the lock is unlocked. It shows the case where it is regarded as a state. The lock status indicator lamp 204 is lit for the window JW of the Japanese-style room J, the window LWA of the living room L, and the window KW of the kitchen K corresponding to the other wireless tags T1, T2, and T4.

(2) Outing mode This outing mode is for remotely monitoring the locked state of the above-mentioned object to be detected while going out and checking it on the portable terminal HP (mobile phone, mobile mobile device, etc.) that is brought to the destination. Mode. FIG. 10 is a time chart showing the communication control operation of the display 200, the reader 100, and the wireless tag T in this outing mode (however, the signal transmission / reception relationship regarding the reader 100C, the wireless tags T4, and T5 related to the kitchen K is complicated. Not shown to avoid).

In FIG. 10, for example, when the "going out" mode is selected with the mode selection button 202 of the display 200 after confirming that each part is locked in the entrance space E immediately before going out in the above (1) normal mode, Display 200 switches to "go out" mode. In this mode, the display 200 transmits confirmation command signals Sca1, Sca2, and Sca3 to the readers 100A, 100B, and 100C at predetermined time intervals. As described in (1) above, each reader 100A to C that has input the confirmation command signals Sca1 to 3 transmits the response command signals Sra1 to 3 to the corresponding wireless tags T1 to T5, respectively, and also sends a response command. Confirmation signals Sc1, Sc2, Sc3 according to the response status of wireless tags T1 to 5 to signals Sra1 to 3 (in this example, whether response signals Sr1 to 3 were received or were not received within a predetermined time and timed out). Is output to the display 200.

In the illustrated example, at the time of the first check (transmission), the response signals Scr1 to Scr1 to 3 are normally received from all the wireless tags T1 to T5 in the readers 100A, 100B, and 100C, and each reader 100A to C to that effect. Outputs the confirmation signals Sc1 to 3 of the contents of (no abnormality) to the display 200. If there is no particular abnormality in the display 200 as described above, the display 200 does not particularly transmit a signal to the portable terminal HP. After that, when the second check was made, the response signal was not received from the wireless tag T3 of the second window LWB of the living room L to the reader 100B, and the reader 100B sent a confirmation signal Sc2 to that effect to the display 200. Output. In response to this, the display 200 transmits a signal including the content that the second window LWB is unlocked to the portable terminal HP, and the portable terminal HP indicates that the window LWB has been opened. Alarm display.

In the above, one side in which the locking piece 3 and the engaging hole 47 engage with each other to realize the locked state of the detection object and detach to realize the unlocked state of the detection object as described in each claim. The members are formed, and the engaging member 6 and the locking tool 46 form the other side member. Further, the window frame 5 constitutes the window frame of one window, and the window frame 4 constitutes the window frame of the other window. As described above, according to the present embodiment, in each of the wireless tags T1 to T5, a switch 52 for conducting / shutting off the antenna 51 and the IC chip 50 is arranged between the antenna 51 and the IC chip 50, and the object to be detected is detected. (Window JW, LWA, LWB, KW, door KD, more specifically, crescent device 1 and door body 41) closes and opens the switch 52 according to whether it is locked or unlocked. When the switch 52 is closed and the antenna 51 and the IC chip 50 are electrically connected, the voltage generated in the antenna 51 based on the radio signals transmitted from the readers 100A to C is input to the power supply control circuit 63, and the radio signal is transmitted. It is supplied as a power supply voltage to the modulation / demodulation circuit 60 and CPU 62 that perform modulation and demodulation.

As a result, in the unlocked state, the switch 52 is shut off and the transmission / reception function of each wireless tag T1 to T5 is put to sleep, while in the locked state, the switch 52 is conducted and the function is activated to transmit / receive. Is possible. Therefore, by detecting whether each of the wireless tags T1 to T5 can transmit and receive with the readers 100A to C with the display 200, the corresponding locking points (window JW of Japanese-style room J, first window of living room L) Whether the LWA and the second window LWB, the kitchen window KW, and the kitchen K door KD) are locked or unlocked can be remotely monitored by the display 200, and wirelessly during transmission and reception. The tag T side does not require a fixed power supply by inducing and using power based on the received radio signal. Therefore, the circuit configuration can be simplified and miniaturized as compared with the conventional structure that requires a fixed power supply, and the installation and replacement can be performed relatively easily, so that the usability can be improved.

In addition, as explained in "(1) Normal mode" above, when going out with the house unattended, the display 200 on the side of the entrance can be used to lock all the above-mentioned locked parts in the house on the spot. It can be remotely monitored and displayed to check whether all the parts to be locked (windows, doors, etc.) are securely locked (whether or not they have been forgotten to tighten) just in case. Therefore, compared to the conventional case where it is necessary to visually look around the relevant part of each room again in such a case, it is possible to eliminate the complexity of looking around. Further, even after the inside of the house is left unattended, the display 200 outputs confirmation command signals Sca1 to 3 to each reader 100A to C at predetermined time intervals as described in "(2) Going out mode" above. Then, the readers 100A to C transmit the response command signals Sra1 to 3 to the corresponding wireless tags. After that, the readers 100A to C confirm according to the response status from each wireless tag T1 to 5 (whether there is a response signal Sr1 to 3 or whether the contents of the response signals Sr1 to 3 are locked or unlocked). The signals Sc1 to 3 are output to the display 200, and these confirmation signals Sc1 to 3 are collected by the display 200. Then, if there is an object to be detected in the unlocked state, a warning signal indicating that fact is transmitted from the display 200 to the portable terminal HP.

As a result, in the unlikely event that one of the parts is unlocked and the locked part is unlocked by someone while going out, a notification to that effect is promptly sent to the portable terminal HP. , Can be notified. Based on this, the householder who saw the portable terminal HP may call to confirm whether someone in the family has returned home, or take some security measures if there is a possibility of intrusion by others. it can.

In the first embodiment, the switch 52 is closed in the locked state of the crescent device 1 and opened in the unlocked state, but conversely, the switch 52 is closed in the unlocked state. Needless to say, the lock may be released in the locked state, and the same effect can be obtained in this case as well. In short, it is sufficient to switch the closing / opening of the switch 52 of the wireless tags T1 to T5 according to either the locked state or the unlocked state, and to switch the dormancy / activation of the transmission / reception function accordingly. ..

A second embodiment of the present invention will be described with reference to FIGS. 11 to 13. In the present embodiment, various state quantities are input to the wireless tag via an external interface, and the signal corresponding to the wireless tag is transmitted to the reader according to the value of the input state quantity. The same parts as those in the first embodiment are designated by the same reference numerals, and the description thereof will be omitted as appropriate. Similar to the first embodiment, the present embodiment also includes the window JW of the Japanese-style room J, the first window LWA and the second window LWB of the living room L, and the crescent device 1 and the kitchen K of the kitchen window KW. The door KD for the mouth is provided with wireless tags T1'to T5'in place of the wireless tags T1 to T5, respectively, and signals are transmitted and received to and from the corresponding readers 100A, 100B, and 100C. Further, the display device 200 provided in the entrance space E, for example, beside the entrance door ED, performs various displays according to the input signals from the readers 100A to C.

FIG. 11 is a functional block diagram showing a detailed functional configuration of the wireless tag T1'. In FIG. 11, in these wireless tags T1'to T5', the switch 52 is omitted from the wireless tags T1 to T5, and an input / output interface (external interface) 70 is newly provided. In this embodiment, in order to detect whether the detection target (window JW, LWA, LWB, KW, door KD) is locked or unlocked, a part of the above-mentioned wireless tags T1 to T5 is configured. Instead of the above-mentioned switch 52, sensors 80 and 90 (not shown) as locking detection means are provided outside the wireless tags T1'to T5'. For example, the crescent device 1 may be provided with a pressure-sensitive sensor outside the tag similar to the switch 52 described above on the inner surface of the locking piece 3 described above as the sensor 80, or may rotate together with the operation handle 7. A rotation sensor (or angle sensor) for detecting the rotation (angle) of the shaft 8 may be provided. The detection method may be a contact type mechanical detection including a limit switch or the like, or a non-contact type detection such as an optical type, a magnetic type, or another electric type. In short, it is detected by some method that the engaging member 6 is locked to the locking piece 3 as a state quantity (numerical value; lock-related state quantity), and this is input / output (via a signal line). A known sensor that inputs to the CPU 62 via the interface 70 is sufficient.

Similarly, the locker 44 of the door body 41 provided in the door KD of the kitchen K is also used as the sensor 90 as in the sensor 80, for example, inside the engagement hole 47 and outside the tag similar to the switch 52 described above. The pressure-sensitive sensor may be provided, and in addition, a contact-type / non-contact-type mechanical / optical / magnetic / electric detection means may be provided. Then, it is detected by some method that the locking tool 44 has penetrated into the engaging hole 47 and is in an engaged state as a state quantity (numerical value; locking-related state quantity), and this is input / output (via a signal line). Input to CPU 62 via interface 70. The CPU 62 compares the state quantity input via the input / output interface 70 with a judgment reference value (for example, a threshold value) set and stored in the RAM 61 or the like in advance, and detects an object to be detected (window JW, LWA, LWB, KW). , Door KD) is determined to be locked or unlocked, and a signal representing this determination result is generated and output to readers 100A to C via the modulation / demodulation circuit 60 and the antenna 51.

The details of the communication control operation in the present embodiment will be described separately in the "normal" mode and the "going out" mode with reference to FIGS. 12 and 13 corresponding to FIGS. 9 and 10 of the first embodiment, respectively. ..

(1') Normal mode FIG. 12 is a time chart showing the communication control operation of the display 200, the reader 100, and the wireless tag T'in this normal mode (reader 100C related to kitchen K, wireless tag T4', The signal transmission / reception relationship related to T5'is not shown). In FIG. 12, similarly to FIG. 9 described above, when the normal mode is selected with the mode selection button 202 of the display 200 and the check operation button 201 is operated, the display 200 confirms to each reader 100A, 100B, 100C. The command signals Sca1', Sca2', and Sca3'are transmitted, respectively. Each reader 100A to C that has input the confirmation command signals Sca1 to Sca3 transmits the response command signals Sra1 to Sra3 to the corresponding wireless tags T1 to T5 , respectively, and also transmits the response command signals Sra1 to Sra3 to the corresponding radio tags T1 to T5 . The response status of the wireless tags T1'to T5' to Sra3 (in this example, the determination result of each CPU 62 based on the state quantity signals of the sensors 80 and 90 described above represented by the received response signals Sr1'to Sr3'is in the locked state. The confirmation signals Sc1', Sc2', and Sc3'according to whether they are in the locked state or not are output to the display 200.

In the illustrated example, the response command signal Sra2'transmitted from the reader 100B arranged in the living room L to the radio tag T2'of the first window LWA and the radio tag T3'of the second window LWB, respectively, is the first. Although the judgment result that the response signal Sr2'is locked is received from the wireless tag T2 of the window LWA of 1, the wireless tag T3'of the second window LWB is unlocked as the response signal Sr2'. A judgment result to that effect has been received. Therefore, the reader 100B outputs a confirmation signal Sc2'to that effect to the display 200.

The same applies to the wireless tag T5'related to the door KD of the kitchen D. When the wireless tag T5'receives a determination result indicating that the response signal Sr3'is unlocked, the reader 100C receives the wireless tag T5'. A confirmation signal Sc3'to that effect is output to the display 200. The display 200 collects the confirmation signals Sc1 , Sc2 , Sc3 output from the readers 100A, 100B, and 100C, respectively, as described above. Then, in the above example, the second window LWB of the living room L and the door KD of the kitchen K are displayed to the effect that they are in the unlocked state (similar to the first embodiment, the locked state indicator lamp 204 is turned on. No, or it is enough to light the color different from the locked state).

(2') Outing mode FIG. 13 is a time chart showing the communication control operation of the display 200, the reader 100, and the wireless tag T'in this outing mode (reader 100C related to kitchen K, wireless tag T4', The signal transmission / reception relationship related to T5'is not shown). In FIG. 13, similarly to FIG. 10 described above, when the going out mode is selected with the mode selection button 202 of the display 200, the display 200 switches to the readers 100A, 100B, 100C at predetermined time intervals. The confirmation command signals Sca1', Sca2', and Sca3'are transmitted.

As described in (1') above, each reader 100A to C, which has input the confirmation command signals Sca1'to Sca3', sends the response command signals Sra1'to Sra3' to the corresponding radio tags T1'to T5'. In addition to transmitting each, the response status of the radio tags T1'to T5'to the response command signals Sra1'to Sra3'((in this example, the state quantities of the above-mentioned sensors 80 and 90 represented by the received response signals Sr1'to Sr3'). The confirmation signals Sc1 , Sc2 , Sc3 according to whether the determination result of each CPU 62 based on the signal is locked or unlocked) are output to the display 200. At the time of check (transmission), the readers 100A, 100B, and 100C receive the determination result that the response signals Sr1', Sr2', and Sr3'are locked from all the wireless tags T1'to T5', and each reader. 100A to C output confirmation signals Sc1'to Sc3'to that effect (no abnormality) to the display 200. If there is no particular abnormality in this way, the display 200 will be sent to the portable terminal HP. No particular signal is transmitted.

After that, when the check was performed for the second time, the judgment result indicating that the lock was unlocked was received as the response signal Sr2'from the radio tag T3'of the second window LWB of the living room L to the reader 100B, and the reader 100B received the determination result. A confirmation signal Sc2'to that effect is output to the display 200. In response to this, the display 200 transmits a signal including the content that the second window LWB is unlocked to the portable terminal HP, and the portable terminal HP indicates that the window LWB has been opened. Alarm display. As described above, the same effect as that of the first embodiment can be obtained by this embodiment as well.

That is, according to the present embodiment, in each of the wireless tags T1'to T5', an input / output interface 70 for inputting a lock-related state amount from the external sensors 80 and 90 is provided, and the CPU 62 is the state amount. A response that determines whether the detection target (window JW, LWA, LWB, KW, door KD, specifically crescent device 1 or door body 41) is locked or unlocked according to the value of Signals Sr1', Sr2', Sr3'are generated and output to readers 100A to C. As a result, the determination results of each wireless tag T1'to T5' are further aggregated by the display 200 via the readers 100A to C, and the corresponding locking points (window JW of Japanese-style room J, first of living room L). Whether the window LWA and the second window LWB, the kitchen window KW, and the kitchen K door KD) are locked or unlocked can be remotely monitored by the display 200, and at the time of transmission / reception. The radio tag T side does not require a fixed power supply by inducing and using power based on the received radio signal. Therefore, the circuit configuration can be simplified and miniaturized as compared with the conventional structure that requires a fixed power supply, and the installation and replacement can be performed relatively easily, so that the usability can be improved.

Further, as described in the above "(1') normal mode", also in the present embodiment, the locked state of all the above-mentioned locked necessary parts in the house is remotely monitored on the spot by the display 200 on the side of the entrance when going out. By displaying the display, the complexity of patrol, which was conventionally required, can be eliminated. Further, even after going out, as described in the above "(2') going out mode", the display 200 outputs the confirmation command signals Sca1'to Sca3'to each reader 100A to C at predetermined time intervals, and the reader 100A ~ C transmits the response command signal Sra1'~ Sra3' to the corresponding radio tag. After that, the readers 100A to C output confirmation signals Sc1'to Sc3'to the display 200 according to the response status from each wireless tag T1'to T5', and these confirmation signals Sc1'to Sc3'are sent to the display 200. Collected. If there is an object to be detected in the unlocked state, a warning signal indicating that fact is transmitted from the display 200 to the portable terminal HP. As a result, in the unlikely event that one of the parts is unlocked and the locked part is unlocked by someone while going out, a notification to that effect is promptly sent to the portable terminal HP. , Can be notified. Based on this, the householder who saw the portable terminal HP may call to confirm whether someone in the family has returned home, or take some security measures if there is a possibility of intrusion by others. it can.

In the second embodiment, the input / output interface 70 inputs the lock-related state quantities detected by the sensors 80 and 90, and the CPU 62 determines the locked state and the unlocked state based on the input, but only this However, another state quantity may be entered. That is, environment-related state quantities related to the surrounding environment (for example, temperature, pressure, humidity, gas leak amount, leakage current, etc.) are detected outside the tags T1'to T5' (in other words, each room where the tag is installed). A known sensor (environment detection means) is provided, and the environment-related state quantity detected by these sensors is also input to the CPU 62 via the input / output interface 70. Then, the CPU 62 determines whether the surrounding environment is in a preferable state or an unfavorable state by comparing with a determination reference value (for example, a threshold value) set and stored in the RAM 61 or the like in advance, as in the case of the lock-related state amount. Then, a signal representing this determination result is generated and output to the readers 100A to C via the modulation / demodulation circuit 60 and the antenna 51.

In this case, in addition to the above-mentioned monitoring of whether or not the lock is locked, it is possible to remotely monitor the ambient environment conditions such as temperature, atmospheric pressure, humidity, and the presence or absence of gas leakage / electric leakage. Further, in the above description, the case where the present invention is applied to an ordinary ordinary house as an example of a building has been described as an example, but the present invention is not limited to this, and for example, other than buildings, offices, factories, stores, offices, etc. It may be installed in the building of. In these cases as well, the same effect as that of the above embodiment is obtained.

<figref num="1">FIG. 5 is a system configuration diagram showing an overall schematic structure of a wireless tag wireless tag communication system for locking confirmation according to the first embodiment of the present invention.</figref><figref num="2">It is a perspective view which shows the attachment structure to the window frame part of a wireless tag.</figref><figref num="3">It is a side sectional view showing the mounting structure of the wireless tag to the window frame portion, and the rear view seen from the direction III in FIG. 3 (a).</figref><figref num="4">It is a functional block diagram which shows the detailed functional structure of a wireless tag.</figref><figref num="5">It is a partially enlarged perspective view which shows the detailed attachment state of a wireless tag.</figref><figref num="6">It is a perspective view which shows the detailed structure in the vicinity of a locking tool.</figref><figref num="7">It is a functional block diagram which shows the detailed structure of a reader.</figref><figref num="8">It is a front view which shows the detailed structure of a display.</figref><figref num="9">It is a time chart which shows the communication control operation in a display, a reader, and a wireless tag in a normal mode.</figref><figref num="10">It is a time chart which shows the communication control operation in a display, a reader, and a wireless tag in the go-out mode.</figref><figref num="11">It is a functional block diagram which shows the detailed functional structure of the wireless tag by 2nd Embodiment of this invention.</figref><figref num="12">It is a time chart which shows the communication control operation in a display, a reader, and a wireless tag in a normal mode.</figref><figref num="13">It is a time chart which shows the communication control operation in a display, a reader, and a wireless tag in the go-out mode.</figref>

Code description

2 ... Crescent, 3 ... Locking piece (Crescent receiving member, one side member), 4 ... Window frame (window frame of the other window), 5 ... Window frame (window of one window) Frame), 6 ... Engagement member (other side member), 46 ... Locking tool (other side member), 47 ... Engagement hole (one side member), 50 ... IC chip, 51 Antenna, 52 Switch (switch means), 60 Modulation / demodulation circuit, 61 RAM (storage means), 62 CPU, 63 Power supply control circuit, 70 Input / output interface (external interface), 80 ... sensor (locking detection means), 90 ... sensor (locking detection means), 100A ... reader, 100B ... reader, 100C ... reader, 200 ... Display, JW Japanese room window (detection object), KW Kitchen window (detection object), KD Kitchen door (detection object), LWA Living room 1st window (detection object), LWB 2nd window of living room (detection object), T1 wireless tag, T2 wireless tag, T3 wireless tag, T4 Wireless tag, T5 Wireless tag.