Mobile communication method and device

Description: TECHNICAL FIELD [Detailed description of the invention]

【0001】

[Technical field to which the invention belongs]

The present invention relates to a communication method and device in a mobile body such as a vehicle, which can form a pseudo network without having a wide area communication means, reduce a system price, and make effective use of radio waves.

【0002】

[Conventional technology]

Radios, mobile phones, and the like are widely used as means of communication from mobile objects such as vehicles.

【0003】

In addition, there are systems such as ATIS and VICS as means for providing traffic information to mobile objects such as vehicles by communication.

【0004】

On the other hand, as a method of transmitting intentions between an unspecified number of vehicles traveling in the vicinity, there is no choice but to rely on inadequate means such as eye contact and blinkers.

【0005】

[Problems to be Solved by the Invention]

However, all of the above-mentioned conventional communication means such as radios and mobile phones communicate with relatively distant stations, so that the equipment becomes large-scale and problems such as lack of wireless channels occur.

【0006】

In addition, in the above-mentioned conventional systems such as ATIS and VICS, which are means for providing traffic information to vehicles, etc., infrastructure development is difficult, and it is possible that the operation side will act on the provided information, such as suppressing the inflow to a specific road. There was a problem of having sex.

【0007】

On the other hand, there is a problem that it is difficult to establish smooth communication by a method of transmitting intentions between an unspecified number of vehicles traveling in the vicinity, which relies on inadequate means such as eye contact and blinkers.

【0008】

An object of the present invention is to provide a mobile communication method and device capable of solving the above problems, forming a pseudo network without having a wide area communication means, reducing a system price, and effectively using radio waves. To do.

【0009】

[Means for solving problems]

In order to achieve the above object, the mobile communication method of the first invention according to the present invention provides a mobile station that communicates with a mobile station of a mobile body in the vicinity or a fixed station in the vicinity of each of a plurality of mobile bodies. The mobile station is characterized in that it transmits information received from a mobile station of a nearby mobile or a fixed station in the vicinity to a mobile station of another mobile in the vicinity or another fixed station in the vicinity. To do.

【0010】

Further, in the mobile communication method of the second invention according to the present invention, a mobile station that communicates with a mobile station of a nearby mobile or a fixed station in the vicinity is arranged in each of a plurality of mobiles, and the movement is described. A station is characterized in that it transmits information to be transmitted to a mobile station of another mobile body in the vicinity or another fixed station in the vicinity.

【0011】

In the first invention described above, the mobile station of the first mobile body accumulates the information received from the mobile station of the second mobile body in the vicinity or the first fixed station in the vicinity, and the third mobile body When approaching the vicinity or when oneself approaches the vicinity of the second fixed station, the accumulated information is transmitted to the mobile station of the third mobile body or the second fixed station. It is effective in that when information is received from the mobile station of the second mobile or the first fixed station in the vicinity, it becomes possible to deal with the situation where the third mobile or the second fixed station is not within the communicable range. Is.

【0012】

In the second invention, the information to be transmitted by itself is information including the route information that the moving body has passed through to date, the average speed on the route, the required time, and the degree of congestion, or the above. In the first invention, the information received from the mobile station of a nearby mobile body or the nearby fixed station determines the route information that a certain mobile body has passed through to the present, the average speed on the route, the required time, and the degree of congestion. The information including the above is preferable in that traffic information according to the actual situation can be obtained without delay or globally.

【0013】

Further, in the mobile communication method of the third invention according to the present invention, a mobile station that communicates with a mobile station of a nearby mobile body is arranged in each of a plurality of mobile bodies, and the mobile station of a certain mobile body is used. A message is sent to a mobile station of another mobile or unspecified mobile group in the vicinity together with identification information of a sender or a destination, and the mobile station of the other mobile or an unspecified mobile group receives the message. It is characterized in that the message is reproduced together with the identification information of the sender or the destination.

【0014】

On the other hand, the mobile communication device of the fourth invention according to the present invention has a short-range communication means, is installed in each of a plurality of mobile bodies, and is installed between mobile stations installed in other mobile bodies in the vicinity. It is characterized by having a mobile station that receives information from the mobile station or transmits or retransmits information that should be transmitted by itself or information received from another mobile station of another mobile body.

【0015】

Further, the mobile communication device of the fifth invention according to the present invention has a fixed station having a short-range communication means with a nearby mobile station and the short-range communication means, and is installed on the mobile body to be fixed in the vicinity. Having a mobile station that receives information from the fixed station or transmits information by itself or another mobile station or a mobile station that transmits or retransmits information received from another fixed station to and from the station. It is a feature.

【0016】

In the above-mentioned fourth and fifth inventions, each short-distance communication means has either one or both of the short-distance transmitting means and the short-distance receiving means, so that the information flow is transmitted in one direction. It is effective in enabling an economical system configuration in case of mutual communication.

【0017】

In the above invention of the mobile communication device, it is preferable for use that the mobile station includes a storage means for accumulating the information received by the short-range communication means and a display means for displaying the accumulated information. ..

【0018】

In the above invention of the mobile communication device, the mobile station has a means for acquiring the current time and the current position, a traveling route up to the present based on the acquired current time and the current position, an average speed on the route, and a requirement. It is preferable to have an information transmission means for creating and transmitting traffic information including one or more time and congestion degree, because traffic information according to the actual situation can be obtained without delay or globally. ..

【0019】

In the fourth invention, the mobile station is an input means for inputting a message and identification information of a sender or a destination, and an information transmitting means for transmitting the input message together with the identification information of the sender or the destination. , It is preferable to have a reproduction means for reproducing a message received from another mobile station together with the identification information of the sender or the destination, in that the message can be transmitted and exchanged between specific or unspecified mobiles in the surroundings. Is.

【0020】

In the fifth aspect of the invention, the fixed station has a storage means to collect information from the mobile station, or synthesizes and edits the collected information and retransmits it to the mobile station, or transmits it by itself. The stand-alone type that transmits the information to be to the mobile station is suitable for collecting, synthesizing, and redistributing information closely related to the area.

【0021】

Alternatively, in the fifth invention described above, the fixed station is connected to one or more connected networks of an information transmitting device, an information receiving device, and an information transmitting / receiving device to ensure the delivery of mail information and the guarantee of information arrival. It is effective in improving.

【0022】

In the present invention, each mobile body is equipped with a mobile station having a means capable of communicating only with the vicinity of, for example, infrared rays or weak radio waves, and the information received from the mobile station of the nearby mobile body is received from the mobile station of another nearby mobile body. Each mobile and fixed station is equipped with means that can communicate only with the vicinity such as infrared rays and weak radio waves, and the information received from the nearby mobile or fixed station is temporarily stored. By retransmitting this information to another mobile or fixed station in the vicinity, a pseudo network is formed without having wide area communication means, the system price is reduced, and radio waves are effectively used.

【0023】

Further, in the present invention, as information to be transmitted by oneself or received information from others, traffic indicating a congestion status such as route information of a moving body that has passed so far, average speed on the route, required time, and degree of congestion. By creating or accumulating information, transmitting or retransmitting this information to another mobile or fixed station in the vicinity, receiving similar information from other mobiles, and playing it back by display or voice. , To be able to obtain global and actual traffic information without having wide area communication means.

【0024】

Further, in the present invention, each mobile body is equipped with a means capable of communicating only with the vicinity such as infrared rays and weak radio waves, and a message in which identification information of a sender or a destination is given to a specific or unspecified group of mobile bodies in the vicinity. Is sent, and the nearby mobiles display and reproduce this message together with the identification information, so that the message can be transmitted and exchanged between the surrounding specific or unspecified mobiles without having wide area communication means. to enable.

【0025】

BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, examples of embodiments of the present invention will be described in detail with reference to the drawings.

【0026】

FIG. 1 is a diagram for explaining a traffic congestion status transmission system and a message transmission system as an example of an embodiment of the present invention, and shows an example of collecting route information and transmitting a mail information message in a mobile body.

【0027】

CR1 is a moving body such as a vehicle, and is provided with a weak radio wave transmitting device TX1, a weak radio wave receiving device RX1, an antenna AT1, a memory MM1, an input device IP1, a display device DS1, and a GPS device GP1.

【0028】

The mobile body CR1 collects the current position and the current time from the GPS device GP1 while traveling, and based on this, the travel locus (route) up to the present, the average speed on the route, the required time, and the degree of congestion. Etc. are stored in the memory MM1 as the traffic information message MS1. In addition, the mail information message MS6 to the computer (not shown) input from the input device IP1 is also stored in the memory MM1.

【0029】

FIG. 2 is a part of the system of the present embodiment and shows an example of receiving information from a base station connected to a network.

【0030】

BS10 is a base station connected to a network, and is equipped with a weak radio wave transmitting device TX10, a weak radio wave receiving device RX10, and an antenna AT10 inside.

【0031】

TS1 is a private or public traffic information collection system, GW1 is a gateway, and NT1 is a network.

【0032】

CR2 is a mobile body 2, and is provided with a weak radio wave transmitting device TX2, a weak radio wave receiving device RX2, an antenna AT2, a memory MM2, a display device DS2, and a GPS device GP2.

【0033】

The traffic information transmitted from the traffic information collection system TS1 reaches the base station BS10 through the network NT1 and the gateway GW1, where the traffic information message MS2 is transmitted from the antenna AT10. Base station BS10 is installed at key points of transportation such as intersections and terminals.

【0034】

The traffic information message MS2 transmitted from the base station BS10 is received by the antenna AT2 of the vehicle CR2 passing by, displayed on the display device DS2, and stored in the memory MM2.

【0035】

In this embodiment, short-range communication is performed using weak radio waves, but other (plural) communication means such as infrared rays, magnetic coupling, and ultrasonic waves can also be used.

【0036】

FIG. 3 is a part of the system of the present embodiment, and shows an example of exchanging messages between mobiles.

【0037】

MS2-2 is a traffic information message that combines the route and time information of the traveling body CR2 based on the traffic information message MS2 received in FIG.

【0038】

Now suppose that the mobile CR1 and the mobile CR2 are close enough to communicate with each other. The mobile CR2 sends the traffic information message MS2-2 held by itself to the mobile CR1, and the mobile CR1 sends the traffic information message MS1 held by itself and the mail information message MS6 addressed to the computer to be transmitted. Send to the mobile CR2.

【0039】

Of the traffic information message MS1 received by the mobile CR2, the important part for the mobile CR2 is displayed as new information on the display device DS2. Similarly, of the traffic information message MS2-2 received by the mobile CR1, the important part for the mobile CR1 is displayed on the display device DS1 as new information.

【0040】

Traffic information messages MS1 and MS2-2 are fused in their respective memories MM1 and MM2, and assembled as wider and more detailed traffic information.

【0041】

FIG. 4 is a part of the system of this embodiment, and shows an example of message exchange between a mobile body and a stand-alone base station.

【0042】

BS11 is a stand-alone base station, and is equipped with a weak radio wave transmitter TX11, a weak radio wave receiver RX11, a memory MM11, and an antenna AT11 inside.

【0043】

Now, suppose that the mobile body CR2 holding the traffic information message MS1 and the mail information message MS6 is approaching the base station BS11 (Fig. 4 (a)). The mobile body CR2 transmits the traffic information message MS1 and the mail information message MS6 toward the base station BS11. The base station BS11 receives this and stores it in the memory MM11. The memory capacity of the base station BS11 is larger than the memory capacity of the mobile CR1 and can store a large amount of data.

【0044】

The traffic information message MS1 and mail information message MS6 stored in the base station BS11 are transmitted to the other mobiles CR3 when they enter the communicable range (Fig. 4 (b)). ).

【0045】

Such a stand-alone base station can collect, synthesize, and redistribute traffic information closely related to the area and information over a wide area by using a large-capacity memory.

【0046】

FIG. 5 is a part of the system of the present embodiment, and shows how mail information is transmitted through a base station connected to a network.

【0047】

BS12 is a base station connected to a network, and is equipped with a weak radio wave transmitting device TX12, a weak radio wave receiving device RX12, and an antenna AT12 inside.

【0048】

GW2 and GW3 are gateways, NT2 is a network, and PC1 is a personal computer.

【0049】

Now, suppose that the mobile body CR3 holding the mail information message MS6 has entered the communicable range with the base station BS12.

【0050】

The mail information message MS6 is transmitted from the mobile body CR3 toward the base station BS12, delivered to the personal computer PC1 via the gateway GW2, the network NT2, and the gateway GW3, and displayed.

【0051】

The message transmission system of the present embodiment does not inherently guarantee the arrival of data, but it is necessary to increase the arrival rate as much as possible. In addition, it is necessary to effectively utilize the memory of the mobile body and improve the efficiency of message exchange.

【0052】

In reality, since there are many moving objects traveling in the same area, the traffic information data of a certain area / route will be sequentially changed to the latest one.

【0053】

In particular, in the case of constant traffic congestion as in Japan, there is always another mobile around one mobile, so it is practically as fast and widespread as a wired network. Messages can be exchanged.

【0054】

Regarding the exchange of traffic information messages, by communicating the departure and destination information of the communication partner, it is possible to communicate only the data that is (believed to be) meaningful to the other party / self. In the case of vehicles, license plates can be used as an aid to regional information, but in order to automate, license plate recognition mechanisms are required.

【0055】

Further, in the case of mail information, efficient delivery is possible by transmitting it to a moving body traveling in the direction of the destination area. In particular, transmission to a base station connected to a wired network is almost guaranteed to be delivered if the destination is a wired network, so subsequent message exchange between mobiles becomes unnecessary and is deleted from the memory. It is possible.

【0056】

FIG. 6 is a part of the system of the present embodiment and shows an example of instant message transmission to a specific mobile body.

【0057】

The message MS3 input by the input device IP4 installed on the mobile CR4 is transmitted to the mobile CR5 traveling in the vicinity and displayed on the display device DS5.

【0058】

Normally, it is impossible for vehicles to communicate with each other other than having a wireless communication device or a mobile phone. Even if you have a radio or mobile phone, it is difficult to exchange data with unspecified vehicles passing by.

【0059】

In the system of the present embodiment, a short message exchange between passing vehicles is possible by using a number or other information that can identify a vehicle as a key (identification information of a caller or a destination). Examples of messages to be exchanged include "enter the next convenience store", "put in a little", and "stop or crack".

【0060】

If the mobile CR4 and the mobile CR5 are not within a communicable distance from each other, other mobiles and base stations may perform storage relay, but unlike mail information, instant messages require little wide-area transmission. It is convenient that it does not accumulate for too long and disappears immediately.

【0061】

FIG. 7 is a part of the system of the present embodiment and shows instant message broadcast transmission to an unspecified number of mobile groups.

【0062】

The message MS4 input by the input device IP4 installed on the mobile CR4 is transmitted to the mobiles CR6, CR7, CR8 traveling in the vicinity and displayed on the respective display devices DS6, DS7, DS8. In this case as well, the above-mentioned number and other information that can identify the vehicle are added to the message as a key (identification information of the sender or the destination), so that the recipient of the message can identify the sender or the destination. It is possible and suitable.

【0063】

If the distance is not communicable with each other, such as mobile CR4 and mobile CR8, other mobiles (mobile CR6 in the example of FIG. 7) and the base station may perform storage relay, but they are instant. Unlike mail, messages rarely need to be communicated over a wide area, so it is convenient not to accumulate them for too long and to eliminate them immediately.

【0064】

In the above-mentioned information transmission and message transmission, it is also effective to reproduce the received message and identification information by voice. Further, in the above embodiment, an example is shown in which both the mobile station equipped on the mobile body and the base station which is a fixed station are provided with a transmitting device and a receiving device as short-range communication means to form a system in a mutual transmission type. However, it is also possible to economically configure a system in which information transmission and message transmission are unilateral, with only one of the transmitting device and the receiving device provided according to the required functions of each short-range communication means. is there.

【0065】

[Effect of the invention]

As described above, according to the present invention, the following effects can be obtained.

【0066】

(1) A pseudo network can be formed without having a wide area communication means, and the system price can be reduced and radio waves can be effectively used.

【0067】

(2) It is possible to obtain traffic information that is global and suitable for the actual situation without having a wide area communication means.

【0068】

(3) It is possible to exchange messages between specific or unspecified mobiles in the surrounding area without having a wide area communication means.

[Simple explanation of drawings]

[Figure 1]

It is a figure explaining the traffic congestion situation transmission system and the message transmission system which shows the example of one Embodiment of this invention, and is the figure which shows the example of collecting the route information and transmitting mail information message in a moving body.

[Figure 2]

It is a figure which shows a part of the same system of the said Embodiment example, and is the figure which shows the example of information reception from the base station connected to the network.

[Fig. 3]

It is a figure which shows a part of the same system of the said Embodiment example, and is the figure which shows the example of the message exchange between mobile bodies.

[Fig. 4]

(a) and (b) are diagrams showing a part of the same system of the above-described embodiment, and are diagrams showing an example of message exchange with a stand-alone base station.

[Fig. 5]

It is a figure which shows a part of the same system of the said Embodiment example, and is the figure which shows the example of mail information transmission through a base station connected to a network.

[Fig. 6]

It is a figure which shows a part of the system of the said Embodiment example, and is the figure which shows the example of the instant message transmission to a specific mobile body.

[Fig. 7]

It is a figure which shows a part of the system of the said Embodiment Example, and is the figure which shows the example of the instant message broadcast transmission to an unspecified number of mobile groups.

[Explanation of symbols]

AT1,2,10 ~ 12 ... Antenna CR1 ~ 7 ... Mobile DS1,2,5 ~ 8 ... Display device GP1,2 ... GPS device IP1,4 ... Input device MM1,2,11 ... Memory MS1,2,2-2 ... Traffic information message MS3,4 ... Instant messaging MS6 ... mail information message RX1,2,10,11 ... Weak radio wave receiver TX1,2,10,11 ... Weak radio wave transmitter