JP2021089784A - Pedestrian terminal device, on-vehicle terminal device, wireless communication system, and movement request notification method - Google Patents

Abstract

To perform the notification of a movement request to a driver of a stopped vehicle only in a necessary and appropriate case.SOLUTION: A pedestrian terminal device 1 carried by a driver for performing wireless communication with a peripheral on-vehicle terminal device 3 comprises: a position information acquisition part 11 for acquiring position information of the own pedestrian terminal device; a communication part 12 for transmitting and receiving a message to and from the on-vehicle terminal device; and a control part 14 for performing distance determination related to whether or not a stopped vehicle and the own pedestrian terminal device are separated at a predetermined distance or more on the basis of the position information of the stopped vehicle included in the message transmitted from the on-vehicle terminal device of the stopped vehicle in which a user of the own pedestrian terminal device is the driver and the position information of the own pedestrian terminal device, and for, when the stopped vehicle and the own pedestrian terminal device are separated at the predetermined distance or more, notifying the driver of a movement request of the stopped vehicle.SELECTED DRAWING: Figure 2

Description

The present invention relates to a pedestrian terminal device possessed by a driver and wirelessly communicates with a peripheral in-vehicle terminal device, a pedestrian terminal device mounted on a vehicle and a peripheral in-vehicle terminal device, and an in-vehicle terminal device of another vehicle. In-vehicle terminal device for wireless communication, wireless communication system for wireless communication between in-vehicle terminal device and pedestrian terminal device, and movement request notification method for notifying the driver of a stopped vehicle of a movement request for a stopped vehicle. Is.

Stopping a vehicle on the road may obstruct the passage of other vehicles. In such annoying parking, it is desired to notify the driver of the stopped vehicle of a movement request requesting that the vehicle be moved promptly and urge the driver to move the vehicle.

As related to the technology for notifying the driver of a movement request of a vehicle stopped on such a road, conventionally, the position information of the vehicle is transmitted from the in-vehicle device mounted on the vehicle to the management base device, and the management base device is used. , Determine whether the vehicle is parked in the no-parking area, and if the vehicle is parked in the no-parking area, use the mobile phone owned by the driver of the vehicle to request the driver to move. (See Patent Document 1).

Japanese Patent No. 4295287

By the way, in recent years, studies have been made for the practical use and popularization of a safe driving support wireless system using ITS (Intelligent Transport System). In this safe driving support wireless system, vehicle-to-vehicle communication in which vehicle-mounted terminal devices mounted on a vehicle communicate with each other, and pedestrian-vehicle communication in which communication is performed between a pedestrian terminal device carried by a pedestrian and an in-vehicle terminal device. By exchanging messages including the position information of vehicles and pedestrians, the driver and pedestrians of the vehicle are alerted to avoid accidents.

Here, in order to notify the driver of the movement request of the vehicle stopped on the road, it is conceivable to use the pedestrian terminal device possessed by the driver of the vehicle. However, as in the conventional technique, when a vehicle stopped on the road is found, the driver of all the vehicles is notified of the movement request. In a situation where there are many stopped vehicles, a movement request message is transmitted. If it occurs frequently, the traffic of pedestrian-vehicle communication may increase and congestion of pedestrian-vehicle communication may occur. Therefore, it is desirable to limit the notification of the movement request to the driver of the stopped vehicle.

In addition, for example, when a vehicle is stopped for people getting on and off or loading and unloading luggage, the driver is near the stopped vehicle and the stopped vehicle can be moved immediately. Therefore, the driver is requested to move. There is little need to notify, and making a move request in such a case may cause discomfort to the driver. Also, for example, if the vehicle is stopped due to an accident or breakdown, or if the vehicle is stopped to rescue an injured or suddenly ill person on the road, the vehicle must be stopped due to unavoidable circumstances. Therefore, it is not appropriate to notify the driver of the move request, and if the move request is made in such a case, it is against ethics and regulations. Therefore, it is desirable to limit the notification of the movement request to the driver of the stopped vehicle only when necessary and appropriate.

Therefore, the present invention provides a pedestrian terminal device, an in-vehicle terminal device, a wireless communication system, and a movement request notification method that can notify a driver of a stopped vehicle of a movement request only when necessary and appropriate. The main purpose is that.

The pedestrian terminal device of the present invention is a pedestrian terminal device possessed by a driver and performing wireless communication with a surrounding vehicle-mounted terminal device, and position information for acquiring the position information of the own pedestrian terminal device. The stop included in the message transmitted from the in-vehicle terminal device of the stopped vehicle in which the user of the pedestrian terminal device is the driver, and the communication unit that transmits / receives a message between the acquisition unit and the in-vehicle terminal device. Based on the position information of the vehicle and the position information of the self-pedestrian terminal device, the distance is determined as to whether or not the stopped vehicle and the self-pedestrian terminal device are separated by a predetermined distance or more, and the stopped vehicle and the self-pedestrian terminal device are determined. The configuration includes a control unit that notifies the driver of a movement request of the stopped vehicle when it is determined that the terminal device is separated from the terminal device by a predetermined distance or more and the pedestrian terminal device is indoors. ..

Further, the in-vehicle terminal device of the present invention is an in-vehicle terminal device that is mounted on a vehicle and performs wireless communication with a pedestrian terminal device in the vicinity and an in-vehicle terminal device of another vehicle, and provides position information of the own vehicle. The pedestrian included in the message transmitted from the position information acquisition unit to be acquired, the communication unit for transmitting and receiving a message between the pedestrian terminal device, and the pedestrian terminal device possessed by the driver of the own vehicle. When it is determined that the stopped own vehicle and the pedestrian terminal device are separated by a predetermined distance or more based on the position information of the terminal device and the position information of the own vehicle, and the pedestrian terminal device is indoors. The pedestrian terminal device is provided with a control unit for transmitting a message requesting the movement of the own vehicle to the pedestrian terminal device.

Further, the wireless communication system of the present invention is a wireless communication system that performs wireless communication between an in-vehicle terminal device and a pedestrian terminal device, and the pedestrian terminal device possessed by the driver is a self-pedestrian terminal device. It is transmitted from the position information acquisition unit that acquires the position information of the vehicle, the communication unit that transmits / receives a message between the vehicle-mounted terminal device, and the vehicle-mounted terminal device of the stopped vehicle in which the user of the pedestrian terminal device is the driver. Based on the position information of the stopped vehicle and the position information of the pedestrian terminal device included in the message, the distance determination regarding whether or not the stopped vehicle and the pedestrian terminal device are separated by a predetermined distance or more is performed. , The control unit that notifies the driver of the movement request of the stopped vehicle when it is determined that the stopped vehicle and the self-pedestrian terminal device are separated by a predetermined distance or more and the self-pedestrian terminal device is indoors. And, the configuration is provided.

Further, the movement request notification method of the present invention is a movement request notification method for notifying the driver of the stopped vehicle of the movement request for the stopped vehicle, and in the pedestrian terminal device of the driver, the self-pedestrian terminal device. The position information is acquired, and in the in-vehicle terminal device of the stopped vehicle driven by the driver, the position information of the own vehicle is acquired, and based on the position information of the pedestrian terminal device of the driver and the position information of the stopped vehicle, the position information is obtained. A distance determination is made regarding whether or not the driver's pedestrian terminal device and the stopped vehicle are separated by a predetermined distance or more, and it is determined that the driver's pedestrian terminal device and the stopped vehicle are separated by a predetermined distance or more. When the pedestrian terminal device of the driver is indoors, the pedestrian terminal device of the driver notifies the driver of the movement request.

According to the present invention, when the driver is away from the vehicle, the driver is not in a situation where the stopped vehicle can be moved immediately, and the vehicle is not in a situation where the vehicle is stopped due to unavoidable circumstances. Is assumed. Therefore, when the driver is away from the vehicle, the driver is notified of the movement request, and when the driver is near the vehicle, the movement request is not notified to the driver, so that the stopped vehicle is stopped. It is possible to notify the driver of the movement request only when necessary and appropriate.

Overall configuration diagram of the wireless communication system according to the first embodiment A block diagram showing a schematic configuration of a pedestrian terminal device 1 according to the first embodiment. A block diagram showing a schematic configuration of the in-vehicle terminal device 3 according to the first embodiment. A sequence diagram showing an outline of processing performed in the wireless communication system according to the first embodiment. A flow chart showing a procedure of processing performed by the in-vehicle terminal device 3 according to the first embodiment. A flow chart showing a procedure of processing performed by the pedestrian terminal device 1 according to the first embodiment. A sequence diagram showing an outline of processing performed in the wireless communication system according to the second embodiment. A flow chart showing a procedure of processing performed by the in-vehicle terminal device 3 according to the second embodiment. A sequence diagram showing an outline of processing performed in the wireless communication system according to the third embodiment. A flow chart showing a procedure of processing performed by the in-vehicle terminal device 3 according to the third embodiment. A sequence diagram showing an outline of processing performed in the wireless communication system according to the fourth embodiment. A flow chart showing a procedure of processing performed by the in-vehicle terminal device 3 according to the fourth embodiment. A flow chart showing a procedure of processing performed by the pedestrian terminal device 1 according to the fourth embodiment. A sequence diagram showing an outline of processing performed in the wireless communication system according to the fifth embodiment. A flow chart showing a procedure of processing performed by the in-vehicle terminal device 3 according to the fifth embodiment. A sequence diagram showing an outline of processing performed in the wireless communication system according to the sixth embodiment. A flow chart showing a procedure of processing performed by the in-vehicle terminal device 3 according to the sixth embodiment. A sequence diagram showing an outline of processing performed in the wireless communication system according to the seventh embodiment. A sequence diagram showing an outline of processing performed in the wireless communication system according to the eighth embodiment. A flow chart showing a procedure of processing performed by the in-vehicle terminal device 3 according to the eighth embodiment. A flow chart showing a procedure of processing performed by the pedestrian terminal device 1 according to the eighth embodiment.

The first invention made to solve the above-mentioned problems is a pedestrian terminal device possessed by a driver and performing wireless communication with a peripheral vehicle-mounted terminal device, and the position of the self-pedestrian terminal device. The position information acquisition unit for acquiring information, a communication unit for transmitting and receiving a message between the in-vehicle terminal device, and the in-vehicle terminal device of a stopped vehicle in which the user of the pedestrian terminal device is a driver. Based on the position information of the stopped vehicle and the position information of the pedestrian terminal device included in the message, the distance determination regarding whether or not the stopped vehicle and the pedestrian terminal device are separated by a predetermined distance or more is performed, and the distance determination is performed. The configuration includes a control unit that notifies the driver of a movement request of the stopped vehicle when the stopped vehicle and the pedestrian terminal device are separated by a predetermined distance or more.

According to this, when the driver is away from the vehicle, it is assumed that the driver is not in a situation where the stopped vehicle can be moved immediately, and that the vehicle is not stopped due to unavoidable circumstances. Will be done. Therefore, when the driver is away from the vehicle, the driver is notified of the movement request, and when the driver is near the vehicle, the movement request is not notified to the driver, so that the stopped vehicle is stopped. It is possible to notify the driver of the movement request only when necessary and appropriate.

Further, in the second invention, the control unit is configured to notify the driver of a movement request of the stopped vehicle when the self-pedestrian terminal device is indoors.

According to this, when the driver is indoors, it is presumed that the situation is not such that the driver can move the stopped vehicle immediately, and that the situation is not such that the vehicle is stopped due to unavoidable circumstances. .. Therefore, when the driver is indoors, the notification of the movement request is necessary and appropriate, and the notification of the movement request can be given regardless of the distance between the own vehicle and the driver.

Further, in the third invention, the position information acquisition unit acquires the position information of the pedestrian terminal device by satellite positioning, and the control unit uses the pedestrian terminal device when the satellite positioning is impossible. The configuration is such that it is determined to be indoors.

According to this, it can be easily determined whether or not the driver is indoors.

Further, in the fourth invention, in the control unit, the stopped vehicle and the pedestrian terminal device are separated by a predetermined distance or more, and the movement request of the stopped vehicle transmitted from the in-vehicle terminal device of the stopped vehicle is provided. When the message requesting the above is received, the driver is notified of the request to move the stopped vehicle.

According to this, it is possible to notify the driver of the movement request only when there is a movement request from the stopped vehicle.

Further, in the fifth invention, the control unit requests a movement request transmitted from an in-vehicle terminal device of a vehicle other than the stopped vehicle when the stopped vehicle and the pedestrian terminal device are separated by a predetermined distance or more. When the requested message is received, the driver is notified of the request to move the stopped vehicle.

According to this, the movement request can be notified to the driver only when there is a movement request from a vehicle other than the stopped vehicle.

The sixth invention is an in-vehicle terminal device that is mounted on a vehicle and performs wireless communication with a pedestrian terminal device in the vicinity and an in-vehicle terminal device of another vehicle, and acquires position information of the own vehicle. The pedestrian terminal device included in the message transmitted from the position information acquisition unit, the communication unit for transmitting and receiving a message between the pedestrian terminal device, and the pedestrian terminal device possessed by the driver of the own vehicle. When the stopped own vehicle and the pedestrian terminal device are separated by a predetermined distance or more based on the position information of the own vehicle and the position information of the own vehicle, the pedestrian sends the message requesting the movement request of the own vehicle. The configuration includes a control unit for transmitting to the terminal device.

According to this, as in the first invention, the notification of the movement request to the driver of the stopped vehicle can be given only when necessary and appropriate.

The seventh invention is an in-vehicle terminal device that is mounted on a vehicle and performs wireless communication with a pedestrian terminal device in the vicinity and an in-vehicle terminal device of another vehicle, and acquires position information of the own vehicle. The message transmitted from the position information acquisition unit, the communication unit that transmits / receives a message between the pedestrian terminal device and the in-vehicle terminal device of the other vehicle, and the pedestrian terminal device possessed by the driver of the own vehicle. Based on the position information of the pedestrian terminal device included in the above, the position information of the in-vehicle terminal device of the other vehicle included in the message transmitted from the in-vehicle terminal device of the other vehicle, and the position information of the own vehicle. When the stopped own vehicle and the pedestrian terminal device are separated by a predetermined distance or more and the own vehicle obstructs the passage of the other vehicle, the message requesting the movement of the own vehicle is sent to the pedestrian. The configuration includes a control unit for transmitting to the pedestrian terminal device.

According to this, when the stopped vehicle obstructs the passage of the traveling vehicle, the driver of the stopped vehicle can be notified of the movement request of the stopped vehicle.

Further, the eighth invention is an in-vehicle terminal device mounted on a vehicle and performing wireless communication with an in-vehicle terminal device of another vehicle, the position information acquisition unit for acquiring the position information of the own vehicle, and the above-mentioned other. The communication unit that sends and receives messages to and from the in-vehicle terminal device of the vehicle, the position information of the in-vehicle terminal device of the other vehicle included in the message transmitted from the in-vehicle terminal device of the other vehicle, and the position information of the own vehicle. Based on the above, when the other vehicle that is stopped interferes with the passage of the own vehicle, the control unit that transmits the message requesting the movement request of the other vehicle to the in-vehicle terminal device of the other vehicle is provided. The configuration is as follows.

According to this, when the stopped vehicle obstructs the passage of the traveling vehicle, the driver of the stopped vehicle can be notified of the movement request of the stopped vehicle.

The ninth invention is an in-vehicle terminal device that is mounted on a vehicle and performs wireless communication with a pedestrian terminal device in the vicinity and an in-vehicle terminal device of another vehicle, and acquires position information of the own vehicle. The position information acquisition unit, the communication unit for transmitting and receiving a message between the pedestrian terminal device and the in-vehicle terminal device of the other vehicle, and the other vehicle included in the message transmitted from the in-vehicle terminal device of the other vehicle. Based on the position information of the in-vehicle terminal device, the identification information of the pedestrian terminal device possessed by the driver of the other vehicle, and the position information of the own vehicle, the other vehicle while stopped prevents the passage of the own vehicle. In this case, the configuration includes a control unit that transmits the message requesting the movement request of the other vehicle to the pedestrian terminal device possessed by the driver of the other vehicle.

According to this, when the stopped vehicle obstructs the passage of the traveling vehicle, the driver of the stopped vehicle can be notified of the movement request of the stopped vehicle.

The tenth invention is an in-vehicle terminal device that is mounted on a vehicle and performs wireless communication with a pedestrian terminal device in the vicinity and an in-vehicle terminal device of another vehicle, and acquires position information of the own vehicle. The position information acquisition unit, the communication unit for transmitting and receiving a message between the pedestrian terminal device and the in-vehicle terminal device of the other vehicle, and the other vehicle included in the message transmitted from the in-vehicle terminal device of the other vehicle. Based on the position information of the in-vehicle terminal device and the position information of the own vehicle, when the stopped own vehicle obstructs the passage of the other vehicle, the message requesting the movement request of the own vehicle is sent to the own vehicle. The configuration includes a control unit that transmits to the pedestrian terminal device possessed by the driver.

According to this, when the stopped vehicle obstructs the passage of the traveling vehicle, the driver of the stopped vehicle can be notified of the movement request of the stopped vehicle.

The eleventh invention is a wireless communication system that performs wireless communication between an in-vehicle terminal device and a pedestrian terminal device, and the pedestrian terminal device possessed by the driver is the position of the own pedestrian terminal device. The position information acquisition unit for acquiring information, a communication unit for transmitting and receiving a message between the in-vehicle terminal device, and the in-vehicle terminal device of a stopped vehicle in which the user of the pedestrian terminal device is a driver. Based on the position information of the stopped vehicle and the position information of the pedestrian terminal device included in the message, when the stopped vehicle and the pedestrian terminal device are separated by a predetermined distance or more, the movement request of the stopped vehicle Is provided with a control unit for notifying the driver.

According to this, as in the first invention, the notification of the movement request to the driver of the stopped vehicle can be given only when necessary and appropriate.

The twelfth invention is a wireless communication system that performs wireless communication between an in-vehicle terminal device and a pedestrian terminal device, wherein the in-vehicle terminal device includes a position information acquisition unit that acquires position information of the own vehicle. , The position information of the pedestrian terminal device included in the communication unit for transmitting and receiving a message to and from the pedestrian terminal device, the message transmitted from the pedestrian terminal device possessed by the driver of the own vehicle, and Based on the position information of the own vehicle, when the stopped own vehicle and the pedestrian terminal device are separated by a predetermined distance or more, the message requesting the movement request of the own vehicle is transmitted to the pedestrian terminal device. It is configured to include a control unit.

According to this, as in the first invention, the notification of the movement request to the driver of the stopped vehicle can be given only when necessary and appropriate.

The thirteenth invention is a movement request notification method for notifying the driver of the stopped vehicle of the movement request for the stopped vehicle, and the position information of the own pedestrian terminal device is provided in the pedestrian terminal device of the driver. The driver acquires the position information of the own vehicle in the in-vehicle terminal device of the stopped vehicle driven by the driver, and based on the position information of the pedestrian terminal device of the driver and the position information of the stopped vehicle. The distance is determined as to whether or not the pedestrian terminal device and the stopped vehicle are separated by a predetermined distance or more, and when the pedestrian terminal device of the driver and the stopped vehicle are separated by a predetermined distance or more, the operation is performed. The pedestrian terminal device of the person is configured to notify the driver of the movement request.

According to this, as in the first invention, the notification of the movement request to the driver of the stopped vehicle can be given only when necessary and appropriate.

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

(First Embodiment)
FIG. 1 is an overall configuration diagram of a wireless communication system according to the present embodiment.

This wireless communication system includes a pedestrian terminal device 1 and a mobile information terminal device 2 possessed by a pedestrian, and an in-vehicle terminal device 3 and a car navigation device 4 mounted on a vehicle.

The pedestrian terminal device 1 has a positioning function for acquiring the position information of a pedestrian and a communication function for performing inter-vehicle communication with the in-vehicle terminal device 3, and the pedestrian and the pedestrian acquired by these functions Based on the position, orientation, speed, etc. of the vehicle, a risk determination is made to determine whether or not the vehicle is likely to collide with a pedestrian.

The mobile information terminal device 2 is a smartphone, a mobile phone, a tablet terminal, a wearable terminal, or the like. The pedestrian terminal device 1 and the mobile information terminal device 2 are connected to each other, and when the pedestrian terminal device 1 determines that there is a high possibility of a collision, a pedestrian is alerted to avoid an accident. The mobile information terminal device 2 is made to perform an output operation (for example, voice output or vibration). In addition, the pedestrian terminal device 1 itself may perform the output operation of alerting.

The in-vehicle terminal device 3 has a positioning function for acquiring the position information of the own vehicle, a communication function for performing inter-vehicle communication with the pedestrian terminal device 1, and inter-vehicle communication with another in-vehicle terminal device 3. It is equipped with communication functions to perform, and there is a high possibility that the own vehicle will collide with pedestrians and other vehicles based on the positions, orientations, speeds, etc. of pedestrians, own vehicles and other vehicles acquired by these functions. Make a risk judgment to determine whether or not.

The car navigation device 4 provides route guidance to the driver. The in-vehicle terminal device 3 and the car navigation device 4 are connected to each other, and when the in-vehicle terminal device 3 determines that there is a high possibility of a collision, an output operation of alerting the driver to avoid an accident ( For example, voice output, screen display, etc.) are performed by the car navigation device 4. In addition, the in-vehicle terminal device 3 itself may perform an output operation for calling attention.

The in-vehicle terminal device 3 may be connected to the mobile information terminal device 2 possessed by the driver so that the mobile information terminal device 2 may perform an output operation such as alerting the driver.

Further, the pedestrian terminal device 1 may be built in the mobile information terminal device 2, and the in-vehicle terminal device 3 may be built in the car navigation device 4.

By the way, in this wireless communication system, a message including information such as the position, orientation, and speed of pedestrians and vehicles necessary for danger determination is transmitted and received between the pedestrian terminal device 1 and the in-vehicle terminal device 3, and also. , Transmission and reception between in-vehicle terminal devices 3 and transmission and reception of this message are frequency bands adopted in ITS wireless communication, that is, a safe driving support wireless system using ITS (Intelligent Transport System) (for example). It is performed by wireless communication using (700 MHz band or 5.8 GHz band).

Here, the case of transmitting and receiving a message between the pedestrian terminal device 1 and the in-vehicle terminal device 3 is referred to as pedestrian-vehicle communication, and the case of transmitting and receiving a message between the in-vehicle terminal devices 3 is referred to as vehicle-to-vehicle communication. And the messages sent and received in vehicle-to-vehicle communication are based on common specifications (data structure).

The message transmitted from the pedestrian terminal device 1 includes identification information (terminal ID, MAC address, etc.) of the pedestrian terminal device 1 in addition to the position information of the pedestrian. The message transmitted from the in-vehicle terminal device 3 includes identification information (terminal ID, MAC address, etc.) of the in-vehicle terminal device 3 in addition to the vehicle position information.

In pedestrian-to-vehicle communication and vehicle-to-vehicle communication, a message is transmitted by broadcasting, but a destination can be specified by assigning a terminal ID to the message, and the pedestrian terminal device 1 and the in-vehicle terminal device 3 receive. It is possible to recognize that the message is addressed to oneself based on the terminal ID included in the message.

Here, the terminal ID of the pedestrian terminal device 1 of the driver is registered in advance in the in-vehicle terminal device 3 of the vehicle driven by the driver, and the driver drives the pedestrian terminal device 1 of the driver. The terminal ID of the vehicle-mounted terminal device 3 of the vehicle to be used is registered in advance, and the pedestrian terminal device 1 of the driver and the vehicle-mounted terminal device 3 of the vehicle driven by the driver give the message a terminal ID to each other. You can send a message by specifying the destination. When a plurality of people drive a vehicle, the terminal ID of each person's pedestrian terminal device 1 is registered in advance in the in-vehicle terminal device 3, and when the driving is started, the in-vehicle terminal device 3 or the car The navigation device 4 may be operated to select a person to be a driver.

By the way, in this embodiment, the pedestrian terminal device 1 possessed by the driver, the in-vehicle terminal device 3 of the vehicle driven by the driver, and the in-vehicle terminal device 3 of the vehicle traveling in the vicinity by the pedestrian-vehicle communication and the vehicle-to-vehicle communication. By exchanging messages containing the required information between the two, if a vehicle parked on the road obstructs the passage of other vehicles, the driver is requested to move the vehicle promptly. Notify the driver of the vehicle.

At this time, if the vehicle is stopped for people getting on and off or loading and unloading luggage, the driver is near the stopped vehicle and can move the stopped vehicle immediately, so the driver is notified of the move request. There is little need to do it. Also, for example, if the vehicle is stopped due to an accident or breakdown, or if the vehicle is stopped to rescue an injured or suddenly ill person on the road, the vehicle must be stopped due to unavoidable circumstances. Therefore, it is not appropriate to notify the driver of the move request.

Therefore, in the present embodiment, a message including position information is exchanged between the pedestrian terminal device 1 of the driver and the in-vehicle terminal device 3 of the stopped vehicle to obtain the distance between the stopped vehicle and the driver. If the driver is away from the stopped vehicle, the movement request is notified to the driver, and if the driver is near the stopped vehicle, the movement request is not notified to the driver.

In addition, even if the distance between the vehicle and the driver is short, if the driver is inside the building, the situation is not such that the driver can move the stopped vehicle immediately, and the vehicle is unavoidable. It is assumed that the vehicle is not in a stopped situation. Therefore, in the present embodiment, when the driver is away from the stopped vehicle or the driver is in the building, the driver is notified of the movement request, and the driver is outdoors near the stopped vehicle. In some cases, do not notify the driver of the move request.

Further, even if a traveling vehicle exists in the vicinity of the stopped vehicle, it is less necessary to move the stopped vehicle in a situation where the stopped vehicle does not obstruct the passage of the traveling vehicle. Therefore, in the present embodiment, a traffic obstacle determination is made as to whether or not the stopped vehicle obstructs the passage of the traveling vehicle, and when the stopped vehicle obstructs the passage of the traveling vehicle, the driver is notified of the movement request. ..

Here, in the present embodiment, the driver is notified of the movement request by using the pedestrian terminal device 1 of the driver. At this time, based on the instruction from the pedestrian terminal device 1, the mobile information terminal device 2 is made to perform a movement request output operation (for example, screen display, lamp lighting, voice output, vibration generation, etc.). The pedestrian terminal device 1 itself may perform a movement request output operation.

Next, the schematic configuration of the pedestrian terminal device 1 will be described. FIG. 2 is a block diagram showing a schematic configuration of the pedestrian terminal device 1.

The pedestrian terminal device 1 includes a position information acquisition unit 11, a communication unit 12, an input / output unit 13, a control unit 14, and an information storage unit 15.

The position information acquisition unit 11 acquires the position information of its own device by a satellite positioning system such as GPS (Global Positioning System), QZSS (Quasi-Zenith Satellite System), or GLONASS (Global Navigation Satellite System). The position information of the own device may be acquired by using the positioning function of the mobile information terminal device 2.

The communication unit 12 transmits and receives a message to and from the in-vehicle terminal device 3 by pedestrian-vehicle communication. In this pedestrian-vehicle communication, wireless communication is performed using the frequency band adopted in the safe driving support wireless system using ITS.

The input / output unit 13 inputs / outputs information to / from the mobile information terminal device 2. Based on the information output from the input / output unit 13, the portable information terminal device 2 performs an output operation for alerting pedestrians and the like.

The information storage unit 15 stores map information, a program executed by the control unit 14, and the like. The map information is automatically updated according to the user's operation and at a predetermined timing. The updated information of the map information may be downloaded from the server by using the communication function of the portable information terminal device 2 in addition to using an appropriate storage medium. The map information may be acquired from the mobile information terminal device 2.

The control unit 14 includes a danger determination unit 21, an indoor determination unit 22, and a distance determination unit 23. The control unit 14 is composed of a processor, and each unit of the control unit 14 is realized by causing the processor to execute a program stored in the information storage unit 15.

The danger determination unit 21 acquires pedestrian speed information and orientation information from the transition status of the pedestrian position information acquired by the position information acquisition unit 11, and obtains the pedestrian position information, speed information, and orientation information. Based on the vehicle position information, speed information, and orientation information acquired from the in-vehicle terminal device 3, it is determined whether or not it is necessary to call attention, that is, whether or not there is a high possibility that the vehicle will collide with a pedestrian.

The indoor determination unit 22 determines whether or not the driver is indoors. When the pedestrian terminal device 1 is indoors, the satellite positioning performed by the position information acquisition unit 11 becomes impossible. Therefore, if the satellite positioning is impossible, it is determined that the driver is indoors.

The distance determination unit 23 operates with the stopped vehicle based on the position information of the pedestrian terminal device 1 possessed by the driver acquired by the position information acquisition unit 11 and the position information of the stopped vehicle acquired from the in-vehicle terminal device 3. It is determined whether or not the person is separated by a predetermined distance or more.

Next, a schematic configuration of the in-vehicle terminal device 3 will be described. FIG. 3 is a block diagram showing a schematic configuration of the in-vehicle terminal device 3.

The in-vehicle terminal device 3 includes a position information acquisition unit 31, a communication unit 32, an input / output unit 33, a control unit 34, and an information storage unit 35.

The position information acquisition unit 31 acquires the position information of its own device by the satellite positioning system, similarly to the position information acquisition unit 11 of the pedestrian terminal device 1. The positioning function of the car navigation device 4 may be used to acquire the position information of the own device.

The communication unit 32 transmits and receives a message by pedestrian-to-vehicle communication with the pedestrian terminal device 1, and also transmits and receives a message by vehicle-to-vehicle communication with the in-vehicle terminal device 3 of another vehicle. In the pedestrian-to-vehicle communication and the vehicle-to-vehicle communication, wireless communication is performed using the frequency band adopted in the safe driving support wireless system using ITS, similarly to the communication unit 12 of the pedestrian terminal device 1.

The input / output unit 33 inputs / outputs information to / from the car navigation device 4. Based on the information output from the input / output unit 33, the car navigation device 4 performs an output operation for alerting the driver.

The information storage unit 35 stores map information, a program executed by the control unit 34, and the like. The map information is automatically updated according to the user's operation and at a predetermined timing. The map information update information may be downloaded from the server by using an appropriate storage medium or by using the communication function of the in-vehicle terminal device 3 or the car navigation device 4. The map information may be acquired from the car navigation device 4.

The control unit 34 includes a danger determination unit 41, a stop determination unit 42, and a traffic obstacle determination unit 43. The control unit 34 is composed of a processor, and each unit of the control unit 34 is realized by causing the processor to execute a program stored in the information storage unit 35.

The danger determination unit 41 acquires the orientation information of the own vehicle from the transition status of the position information of the own vehicle acquired by the position information acquisition unit 31, and also acquires the speed information of the own vehicle from the vehicle control device 5, and this self Whether or not it is necessary to call attention based on the vehicle position information, speed information and orientation information, and the pedestrian position information, speed information and orientation information acquired from the pedestrian terminal device 1, that is, the pedestrian himself / herself. Determine if the vehicle may collide.

The vehicle control device 5 controls various devices such as an engine based on signals of various sensors and switches, and can output speed information detected by the speed sensor.

The stop determination unit 42 determines whether or not the own vehicle has stopped based on the speed information of the own vehicle acquired from the vehicle control device 5. At this time, it is determined that the vehicle has stopped when the speed is equal to or lower than the predetermined value for a certain period of time. The stop determination may be made based on the position information acquired by the position information acquisition unit 31. Further, the stop determination unit 42 determines whether or not the position where the own vehicle has stopped is on the road based on the position information and the map information of the own vehicle.

The traffic obstacle determination unit 43 advances the other vehicle based on the position information of the own vehicle acquired by the position information acquisition unit 31, the position information of the other vehicle acquired from the in-vehicle terminal device 3 of the other vehicle, and the map information. It is determined whether or not the own vehicle is in front of the direction and the own vehicle (stopped vehicle) obstructs the passage of another vehicle (running vehicle).

Here, when the stopped vehicle obstructs the passage of the traveling vehicle, the width of the road is narrow and the traveling vehicle cannot pass by the stopped vehicle, or the road is congested, so that it is next to the vehicle. This may be the case when the lane to move to the lane cannot be changed, when there is a stopped vehicle in the left lane when turning left at the next intersection, or when there is a stopped vehicle at the entrance of the parking lot.

In addition, the message transmitted from the in-vehicle terminal device 3 of another vehicle includes information on the size of the vehicle, and the stopped vehicle is based on this information and the information on the width of the road included in the map information. It is determined whether or not the traveling vehicle can pass by the side of. Further, by acquiring the traffic information regarding the traffic congestion situation of the road from the traffic information providing device, it is possible to determine whether or not the lane can be changed. The "traveling vehicle" may include a vehicle that is temporarily stopped due to a stopped vehicle obstructing traffic, or a vehicle that is temporarily stopped at a red light.

Next, the outline of the processing performed by this wireless communication system will be described. FIG. 4 is a sequence diagram showing an outline of processing performed in the wireless communication system.

In the present embodiment, first, when it is determined that the own vehicle is stopped in the in-vehicle terminal device 3 of the stopped vehicle, a stop notification message (a stop notification message) that triggers the driver's pedestrian terminal device 1 to make a predetermined determination. (Including the position information of the stopped vehicle) is transmitted to the pedestrian terminal device 1 of the driver by pedestrian-to-vehicle communication. Since the terminal ID of the driver's pedestrian terminal device 1 is registered in advance in the in-vehicle terminal device 3, the driver's pedestrian terminal device 1 can be designated as the destination of the stop notification message.

Further, the in-vehicle terminal device 3 transmits vehicle information in normal pedestrian-vehicle communication to the surroundings without transmitting a stop notification message addressed to the driver's pedestrian terminal device 1, and receives the vehicle information for driving. The pedestrian terminal device 1 of the person may make a predetermined determination. However, it is preferable to send a stop notification message in terms of reducing the amount of signal communication.

Next, when the driver's pedestrian terminal device 1 receives a stop notification message including position information transmitted from the in-vehicle terminal device 3 of the stopped vehicle, it makes an indoor determination as to whether or not the driver is indoors and drives. When the person is indoors and the position information of the driver can be acquired, the distance determination regarding whether or not the stopped vehicle and the driver are separated by a predetermined distance or more is performed. Then, when the driver is indoors or the stopped vehicle and the driver are separated by a predetermined distance or more, a long-distance notification message (driver's position information) indicating that the driver is not near the vehicle is displayed. (Including) is transmitted to the in-vehicle terminal device 3 of the stopped vehicle by inter-vehicle communication. The driver's pedestrian terminal device 1 may register the terminal ID of the in-vehicle terminal device 3 of the driver's vehicle in advance and specify this terminal ID as the destination of the long-distance notification message. The terminal ID that is the source of the stop notification message received as the destination may be specified as the destination of the long-distance notification message.

Next, when the in-vehicle terminal device 3 of the stopped vehicle receives the long-distance notification message transmitted from the pedestrian terminal device 1 of the driver, the status notification message (state notification message) by inter-vehicle communication with the surrounding in-vehicle terminal device 3 ( Vehicle information) is exchanged to acquire the position information of other vehicles existing in the vicinity of the own vehicle. Then, when a traveling vehicle in which the own vehicle is located in front of the traveling direction is found based on the position information of the other vehicle, a traffic obstacle determination is made as to whether or not the own vehicle obstructs the passage of the traveling vehicle. Here, when the own vehicle obstructs the passage of the traveling vehicle, a movement request message is transmitted to the pedestrian terminal device 1 of the driver.

Next, when the pedestrian terminal device 1 of the driver receives the movement request message transmitted from the in-vehicle terminal device 3 of the stopped vehicle, the process of notifying the driver of the movement request is performed.

The message transmitted from the pedestrian terminal device 1 or the in-vehicle terminal device 3 in the pedestrian-vehicle communication or the vehicle-to-vehicle communication can be freely used by the user in addition to the common area in which the information related to the danger determination is stored. There is an extended area that can be used, and information about the movement request (stop notification, long-distance notification, movement request) is stored and transmitted in this extended area.

Next, the procedure of the processing performed by the in-vehicle terminal device 3 will be described. FIG. 5 is a flow chart showing a procedure of processing performed by the in-vehicle terminal device 3.

In the in-vehicle terminal device 3, first, the vehicle stop determination unit 42 acquires the speed information of the own vehicle from the vehicle control device 5 and determines whether or not the own vehicle has stopped (ST101). Here, if the own vehicle is stopped (Yes in ST101), the process proceeds to the processing of the stopped vehicle. Here, first, it is determined whether or not the own vehicle is located on the road based on the position information of the own device acquired by the position information acquisition unit 31 and the map information of the information storage unit 35 (ST102).

Here, when the own vehicle is located on the road (Yes in ST102), the communication unit 32 transmits a stop notification message (including the position information of the stopped vehicle) to the driver's pedestrian terminal device 1 (Yes). ST103).

Then, when the communication unit 32 receives the long-distance notification message (including the driver's position information) transmitted from the driver's pedestrian terminal device 1 (Yes in ST104), it is connected to the peripheral in-vehicle terminal device 3. By exchanging status notification messages at, the position information of other vehicles existing in the vicinity of the own vehicle is acquired (ST105). Then, the traffic obstacle determination unit 43 determines whether or not the own vehicle (stopped vehicle) interferes with the passage of another vehicle (traveling vehicle) based on the position information and the map information of the vehicles existing in the vicinity. (ST106).

Here, when the own vehicle obstructs the passage of another vehicle (Yes in ST106), the communication unit 32 transmits a movement request message to the driver's pedestrian terminal device 1 (ST107).

On the other hand, if the own vehicle is not stopped (No in ST101), the process proceeds to the processing of the traveling vehicle. Here, the communication unit 32 exchanges a status notification message with the in-vehicle terminal device 3 of the stopped vehicle and provides the position information of the own vehicle to the in-vehicle terminal device 3 of the stopped vehicle (ST108).

On the other hand, when the own vehicle is not stopped on the road (No in ST102), the driver does not receive the long-distance notification message from the pedestrian terminal device 1, that is, the driver is outdoors near the vehicle. In the case (No in ST104), if the own vehicle does not interfere with the passage of other vehicles (No in ST106), no particular processing is performed.

In the road stop determination (ST102), the parking / stopping prohibition determination may be made as to whether or not the own vehicle has stopped in the legal parking / stopping prohibited area. In this case, information regarding the position of the legally prohibited parking / stopping area is registered in advance in the map information, and the own vehicle is located within the legally prohibited parking / stopping area based on this map information and the position information of the own device. It may be determined whether or not to do so.

Further, before transmitting a message to the driver's pedestrian terminal device 1 (ST103), it is determined whether or not the driver has disembarked from the own vehicle based on the position information of the driver and the own vehicle. A message may be sent when the driver gets off the vehicle.

Next, the procedure of the processing performed by the pedestrian terminal device 1 will be described. FIG. 6 is a flow chart showing a procedure of processing performed by the pedestrian terminal device 1.

In the pedestrian terminal device 1, first, when the communication unit 12 receives a stop notification message (including the position information of the stopped vehicle) transmitted from the in-vehicle terminal device 3 of the stopped vehicle (Yes in ST201), the indoor determination unit 22 In (ST202), it is determined whether or not the driver is indoors depending on whether or not satellite positioning is possible by the position information acquisition unit 11.

Here, when satellite positioning is possible and the driver is not indoors (Yes in ST202), then in the distance determination unit 23, the pedestrian terminal device 1 possessed by the driver acquired by the position information acquisition unit 11. Based on the position information of the stopped vehicle and the position information of the stopped vehicle acquired from the in-vehicle terminal device 3 of the stopped vehicle, it is determined whether or not the driver and the stopped vehicle are separated by a predetermined distance or more (ST203).

Here, when satellite positioning is impossible and the driver is indoors (No in ST202), and when the driver and the stopped vehicle are separated by a predetermined distance or more (Yes in ST203), the communication unit 12 is far away. A distance notification message (including the position information of the pedestrian terminal device 1) is transmitted to the in-vehicle terminal device 3 of the stopped vehicle (ST204).

Then, when the communication unit 12 receives the movement request message transmitted from the in-vehicle terminal device 3 of the stopped vehicle (Yes in ST205), the control unit 14 performs a process of notifying the driver of the movement request (ST206).

On the other hand, when the stop notification message from the in-vehicle terminal device 3 of the stopped vehicle is not received (No in ST201), or when the driver and the stopped vehicle are not separated by a predetermined distance or more (No in ST203), the in-vehicle terminal device of the stopped vehicle When the move request message from 3 is not received (No in ST205), no particular process is performed.

If the driver is indoors and satellite positioning is not possible (No in ST202), the position information with an indefinite position may be added to the message and transmitted to the in-vehicle terminal device 3 of the stopped vehicle (ST204). ..

Further, in the present embodiment, it is determined that the driver is indoors because satellite positioning is impossible, but the pedestrian terminal device 1 acquires position information with a beacon installed indoors. Assuming that it has a positioning function, it is determined that the driver is indoors based on the position information acquired by this indoor positioning, and a message including the position information is transmitted to the in-vehicle terminal device 3 of the stopped vehicle. May be good. This makes it possible to reliably determine that the driver is indoors.

Also, if the driver is indoors, even if there is a driver near the vehicle, it is possible that the vehicle has been parked for a long time without a justifiable reason. May be notified to the driver.

(Second Embodiment)
Next, the second embodiment will be described. It should be noted that the points not particularly mentioned here are the same as those in the above-described embodiment. FIG. 7 is a sequence diagram showing an outline of processing performed in the wireless communication system according to the second embodiment.

In the first embodiment, the in-vehicle terminal device 3 of the stopped vehicle determines whether or not the stopped vehicle interferes with the passage of the traveling vehicle. However, in the present embodiment, the traveling vehicle determines the traffic obstacle. This is done by the in-vehicle terminal device 3 of the above.

In the present embodiment, the stop determination and the stop notification message are transmitted by the in-vehicle terminal device 3 of the stopped vehicle, and the indoor determination, the distance determination, and the long-distance notification message are transmitted by the driver's pedestrian terminal device 1. Is the same as in the first embodiment.

Then, when the in-vehicle terminal device 3 of the stopped vehicle receives the long-distance notification message transmitted from the pedestrian terminal device 1 of the driver, the on-street parking message (including the position information of the own vehicle) is sent to the surrounding traveling vehicle. It is transmitted to the in-vehicle terminal device 3 by vehicle-to-vehicle communication.

Next, when the in-vehicle terminal device 3 of the traveling vehicle receives the on-street parking message transmitted from the in-vehicle terminal device 3 of the stopped vehicle, it determines whether or not the stopped vehicle interferes with the passage of the own vehicle. Do. Here, when the stopped vehicle obstructs the passage of the own vehicle, a movement request message is transmitted to the in-vehicle terminal device 3 of the stopped vehicle by vehicle-to-vehicle communication.

Next, when the in-vehicle terminal device 3 of the stopped vehicle receives the movement request message transmitted from the in-vehicle terminal device 3 of the traveling vehicle, the movement request message is transmitted to the pedestrian terminal device 1 of the driver by pedestrian-to-vehicle communication.

Next, the procedure of the processing performed by the in-vehicle terminal device 3 will be described. FIG. 8 is a flow chart showing a procedure of processing performed by the in-vehicle terminal device 3. The procedure of the processing performed by the pedestrian terminal device 1 is the same as that of the first embodiment (see FIG. 6).

In the in-vehicle terminal device 3, similarly to the first embodiment (see FIG. 5), a stop determination is made (ST101), and when the own vehicle is stopped (Yes in ST101), the process proceeds to the processing of the stopped vehicle. .. Here, first, as in the first embodiment (see FIG. 5), a stop determination on the road is performed (ST102), and here, when the own vehicle is located on the road (Yes in ST102), a stop notification message is given. (Including the position information of the stopped vehicle) is transmitted to the pedestrian terminal device 1 of the driver (ST103).

Next, when the communication unit 32 receives the long-distance notification message (including the driver's position information) transmitted from the driver's pedestrian terminal device 1 (Yes in ST104), the road parked message (of the stopped vehicle) (Including position information) is transmitted to the peripheral in-vehicle terminal device 3 (ST111). Next, when the movement request message transmitted from the in-vehicle terminal device 3 of the traveling vehicle is received (Yes in ST112), the movement request message is transmitted to the pedestrian terminal device 1 of the driver (ST107).

On the other hand, when the own vehicle is not stopped (No in ST101), the process proceeds to the processing of the traveling vehicle. Here, first, when the on-street parking message (including the position information of the stopped vehicle) transmitted from the in-vehicle terminal device 3 of the stopped vehicle is received (Yes in ST113), then the stopped vehicle is determined by the traffic obstacle determination unit 43. Based on the position information and the map information of, it is determined whether or not the stopped vehicle obstructs the passage of the own vehicle (ST114).

Here, if the stopped vehicle obstructs the passage of the own vehicle (Yes in ST114), a movement request message is transmitted to the in-vehicle terminal device 3 of the stopped vehicle (ST115).

(Third Embodiment)
Next, the third embodiment will be described. It should be noted that the points not particularly mentioned here are the same as those in the above-described embodiment. FIG. 9 is a sequence diagram showing an outline of processing performed in the wireless communication system according to the third embodiment.

In the second embodiment, the movement request message is transmitted from the in-vehicle terminal device 3 of the traveling vehicle to the pedestrian terminal device 1 of the driver via the in-vehicle terminal device 3 of the stopped vehicle. , The movement request message is directly transmitted from the in-vehicle terminal device 3 of the traveling vehicle to the pedestrian terminal device 1 of the driver.

Here, by assigning the terminal ID of the driver's pedestrian terminal device 1 to the movement request message and transmitting the message, it is possible to recognize that the driver's pedestrian terminal device 1 is a message addressed to himself / herself. However, unlike the in-vehicle terminal device 3 of the stopped vehicle, the terminal ID of the pedestrian terminal device 1 of the driver is not registered in the in-vehicle terminal device 3 of the traveling vehicle.

Therefore, in the present embodiment, when the movement request message is transmitted from the in-vehicle terminal device 3 of the stopped vehicle to the in-vehicle terminal device 3 of the surrounding traveling vehicle, the terminal ID of the pedestrian terminal device 1 of the driver is added to the message. And send. As a result, the terminal ID of the driver's pedestrian terminal device 1 can be acquired in the in-vehicle terminal device 3 of the traveling vehicle, and the movement request message is transmitted by adding the terminal ID of the driver's pedestrian terminal device 1. To do.

Next, the procedure of the processing performed by the in-vehicle terminal device 3 will be described. FIG. 10 is a flow chart showing a procedure of processing performed by the in-vehicle terminal device 3.

The present embodiment is substantially the same as the second embodiment (see FIG. 8), but in the processing of the stopped vehicle, the parking message on the road (position information of the stopped vehicle and the terminal ID of the driver's pedestrian terminal device 1 is used. (Including) is transmitted to the peripheral in-vehicle terminal device 3 (ST111), and the flow ends. Further, in the processing of the traveling vehicle, when the on-street parking message (including the position information of the stopped vehicle and the terminal ID of the driver's pedestrian terminal device 1) transmitted from the in-vehicle terminal device 3 of the stopped vehicle is received (in ST113). Yes), when the stopped vehicle obstructs the passage of the own vehicle (Yes in ST114), a movement request message is transmitted to the pedestrian terminal device 1 of the driver (ST121).

The procedure of processing performed by the pedestrian terminal device 1 is substantially the same as that of the first embodiment (see FIG. 6), but in receiving the movement request message (ST205), the source of the message is the vehicle of the traveling vehicle. The terminal device 3 is different from the first embodiment.

(Fourth Embodiment)
Next, the fourth embodiment will be described. It should be noted that the points not particularly mentioned here are the same as those in the above-described embodiment. FIG. 11 is a sequence diagram showing an outline of processing performed in the wireless communication system according to the fourth embodiment.

In the present embodiment, the in-vehicle terminal device 3 of the stopped vehicle makes a traffic obstacle determination immediately after the stop determination. First, when it is determined that the own vehicle has stopped in the in-vehicle terminal device 3 of the stopped vehicle, a status notification message is exchanged with the in-vehicle terminal device 3 in the vicinity, and the position of another vehicle existing in the vicinity of the own vehicle is exchanged. Get information. Then, when the traveling vehicle in which the own vehicle is located in front of the traveling direction is found based on the position information of the other vehicle, the next step is to determine whether or not the own vehicle obstructs the passage of the traveling vehicle. Do. Here, when the own vehicle obstructs the passage of the traveling vehicle, a movement request message is transmitted to the pedestrian terminal device 1 of the driver.

Next, when the driver's pedestrian terminal device 1 receives the movement request message transmitted from the in-vehicle terminal device 3 of the stopped vehicle, it makes an indoor determination as to whether or not the driver is indoors, and the driver is indoors. If the driver's position information can be obtained, the distance is determined as to whether or not the stopped vehicle and the driver are separated by a predetermined distance or more. Then, when the driver is indoors or the stopped vehicle and the driver are separated by a predetermined distance or more, a process of notifying the driver of the movement request is performed.

Next, the procedure of the processing performed by the in-vehicle terminal device 3 will be described. FIG. 12 is a flow chart showing a procedure of processing performed by the in-vehicle terminal device 3.

In the in-vehicle terminal device 3, similarly to the first embodiment (see FIG. 5), a stop determination is made (ST101), and when the own vehicle is stopped (Yes in ST101), the process proceeds to the processing of the stopped vehicle. .. Here, first, as in the first embodiment (see FIG. 5), the road stop determination is performed (ST102).

Here, when the own vehicle is located on the road (Yes in ST102), the communication unit 32 exchanges a status notification message with the peripheral in-vehicle terminal device 3 and exists in the vicinity of the own vehicle. Acquire the position information of another vehicle (ST105). Then, the traffic obstacle determination unit 43 determines whether or not the own vehicle (stopped vehicle) interferes with the passage of another vehicle (traveling vehicle) based on the position information and the map information of the vehicles existing in the vicinity. (ST106).

Here, when the own vehicle obstructs the passage of another vehicle (Yes in ST106), the communication unit 32 transmits a movement request message to the driver's pedestrian terminal device 1 (ST107).

On the other hand, if the own vehicle is not stopped (No in ST101), the process proceeds to the processing of the traveling vehicle. Here, the communication unit 32 exchanges a status notification message with the in-vehicle terminal device 3 of the stopped vehicle and provides the position information of the own vehicle to the in-vehicle terminal device 3 of the stopped vehicle (ST108).

Next, the procedure of the processing performed by the pedestrian terminal device 1 will be described. FIG. 13 is a flow chart showing a procedure of processing performed by the pedestrian terminal device 1.

In the pedestrian terminal device 1, first, when the communication unit 12 receives the movement request message transmitted from the in-vehicle terminal device 3 of the stopped vehicle (Yes in ST205), whether or not satellite positioning is possible in the indoor determination unit 22. It is determined whether or not the driver is indoors according to the above (ST202).

Here, when satellite positioning is possible and the driver is not indoors (Yes in ST202), then in the distance determination unit 23, the driver's position information acquired by the position information acquisition unit 11 and the stopped vehicle Based on the position information of the stopped vehicle acquired from the in-vehicle terminal device 3, it is determined whether or not the driver and the stopped vehicle are separated by a predetermined distance or more (ST203).

Here, if satellite positioning is not possible and the driver is indoors (No in ST202), or if the driver and the stopped vehicle are separated by a predetermined distance or more (Yes in ST203), the driver is requested to move. Perform the notification process (ST206).

(Fifth Embodiment)
Next, the fifth embodiment will be described. It should be noted that the points not particularly mentioned here are the same as those in the above-described embodiment. FIG. 14 is a sequence diagram showing an outline of processing performed in the wireless communication system according to the fifth embodiment.

In the present embodiment, first, in the in-vehicle terminal device 3 of the traveling vehicle, a status notification message is exchanged with the in-vehicle terminal device 3 in the vicinity, and the position information and speed information of other vehicles existing in the vicinity of the own vehicle are exchanged. get. Then, based on the position information and speed information of the other vehicles, a stop determination is made regarding whether or not there is a stopped vehicle. When a stopped vehicle is found by this stop determination, next, a traffic obstacle determination is performed as to whether or not the stopped vehicle obstructs the passage of the own vehicle. Here, when the stopped vehicle obstructs the passage of the own vehicle, a movement request message is transmitted to the in-vehicle terminal device 3 of the stopped vehicle.

Next, when the in-vehicle terminal device 3 of the stopped vehicle receives the movement request message transmitted from the in-vehicle terminal device 3 of the traveling vehicle, the movement request message (including the position information of the stopped vehicle) is sent to the pedestrian terminal device of the driver. Send to 1.

The process performed by the driver's pedestrian terminal device 1 is the same as that of the fourth embodiment (see FIG. 11).

Next, the procedure of the processing performed by the in-vehicle terminal device 3 will be described. FIG. 15 is a flow chart showing a procedure of processing performed by the in-vehicle terminal device 3. The procedure of the processing performed by the pedestrian terminal device 1 is the same as that of the fourth embodiment (see FIG. 13).

In the in-vehicle terminal device 3, similarly to the first embodiment (see FIG. 5), a stop determination is made (ST101), and when the own vehicle is stopped (Yes in ST101), the process proceeds to the processing of the stopped vehicle. .. Here, first, as in the first embodiment (see FIG. 5), the road stop determination is performed (ST102).

Here, when the own vehicle is located on the road (Yes in ST102), the communication unit 32 exchanges a status notification message with the peripheral in-vehicle terminal device 3, and the position information and speed of the stopped vehicle. Information is provided to the vehicle-mounted terminal device 3 of the traveling vehicle (ST131). Then, when the movement request message transmitted from the in-vehicle terminal device 3 of the traveling vehicle is received (Yes in ST112), the movement request message is transmitted to the pedestrian terminal device 1 of the driver (ST107).

On the other hand, if the own vehicle is not stopped (No in ST101), the process proceeds to the processing of the traveling vehicle. Here, first, the status notification message is exchanged with the peripheral in-vehicle terminal device 3, and the position information and the speed information of other vehicles existing in the vicinity of the own vehicle are acquired (ST132). Then, it is determined whether or not there is a stopped vehicle in the vicinity (ST133). Here, when a vehicle stopped in the vicinity is found (Yes in ST133), then, in the traffic obstacle determination unit 43, the stopped vehicle obstructs the passage of the own vehicle based on the position information and the map information of the stopped vehicle. It is determined whether or not it becomes (ST114).

Here, if the stopped vehicle obstructs the passage of the own vehicle (Yes in ST114), a movement request message is transmitted to the in-vehicle terminal device 3 of the stopped vehicle (ST115).

(Sixth Embodiment)
Next, the sixth embodiment will be described. It should be noted that the points not particularly mentioned here are the same as those in the above-described embodiment. FIG. 16 is a sequence diagram showing an outline of processing performed in the wireless communication system according to the sixth embodiment.

In the present embodiment, first, when it is determined that the own vehicle is stopped in the in-vehicle terminal device 3 of the stopped vehicle, a on-street parking message is transmitted to the surrounding in-vehicle terminal device 3.

Next, when the in-vehicle terminal device 3 of the traveling vehicle receives the on-street parking message transmitted from the in-vehicle terminal device 3 of the stopped vehicle, the stopped vehicle passes through the own vehicle based on the position information of the own vehicle and the stopped vehicle. Judgment of traffic obstruction as to whether or not it interferes with. Here, when the stopped vehicle obstructs the passage of the own vehicle, a movement request message is transmitted to the in-vehicle terminal device 3 of the stopped vehicle.

Next, when the in-vehicle terminal device 3 of the stopped vehicle receives the movement request message transmitted from the in-vehicle terminal device 3 of the traveling vehicle, the movement request message is transmitted to the pedestrian terminal device 1 of the driver.

The process performed by the driver's pedestrian terminal device 1 is the same as that of the fourth embodiment (see FIG. 11).

Next, the procedure of the processing performed by the in-vehicle terminal device 3 will be described. FIG. 17 is a flow chart showing a procedure of processing performed by the in-vehicle terminal device 3. The procedure of the processing performed by the pedestrian terminal device 1 is the same as that of the fourth embodiment (see FIG. 13).

In the in-vehicle terminal device 3, similarly to the first embodiment (see FIG. 5), a stop determination is made (ST101), and when the own vehicle is stopped (Yes in ST101), the process proceeds to the processing of the stopped vehicle. .. Here, first, as in the first embodiment (see FIG. 5), the road stop determination is performed (ST102).

Here, when the own vehicle is located on the road (Yes in ST102), the communication unit 32 includes a message of parking on the road (including the position information of the stopped vehicle and the terminal ID of the driver's pedestrian terminal device 1). Is transmitted to the peripheral in-vehicle terminal device 3 (ST111). Next, when the movement request message transmitted from the in-vehicle terminal device 3 of the traveling vehicle is received (Yes in ST112), the movement request message is transmitted to the pedestrian terminal device 1 of the driver (ST107).

On the other hand, when the own vehicle is not stopped (No in ST101), the process proceeds to the processing of the traveling vehicle. Here, first, when the on-street parking message (including the position information of the stopped vehicle and the terminal ID of the driver's pedestrian terminal device 1) transmitted from the in-vehicle terminal device 3 of the stopped vehicle is received (Yes in ST113), Next, the traffic obstacle determination unit 43 determines whether or not the stopped vehicle interferes with the passage of the own vehicle based on the position information and the map information of the stopped vehicle (ST114).

Here, if the stopped vehicle obstructs the passage of the own vehicle (Yes in ST114), a movement request message is transmitted to the in-vehicle terminal device 3 of the stopped vehicle (ST115).

In the present embodiment, the movement request message is transmitted from the in-vehicle terminal device 3 of the traveling vehicle to the pedestrian terminal device 1 of the driver via the in-vehicle terminal device 3 of the stopped vehicle. Similar to the embodiment (see FIG. 9), the movement request message may be directly transmitted from the vehicle-mounted terminal device 3 of the traveling vehicle to the pedestrian terminal device 1 of the driver.

(7th Embodiment)
Next, the seventh embodiment will be described. It should be noted that the points not particularly mentioned here are the same as those in the above-described embodiment. FIG. 18 is a sequence diagram showing an outline of processing performed in the wireless communication system according to the seventh embodiment.

In the above-described embodiment, the in-vehicle terminal device 3 of the stopped vehicle or the in-vehicle terminal device 3 of the traveling vehicle determines the traffic obstacle as to whether or not the stopped vehicle obstructs the passage of the traveling vehicle. In the embodiment, the driver of the traveling vehicle determines whether or not the stopped vehicle obstructs the passage of the traveling vehicle, and the driver performs the movement request operation on the in-vehicle terminal device 3 of the traveling vehicle.

That is, when the driver of the traveling vehicle performs the movement request operation, the movement request message is transmitted from the in-vehicle terminal device 3 of the traveling vehicle to the in-vehicle terminal device 3 of the stopped vehicle, and further, the movement request message is sent to the in-vehicle terminal of the stopped vehicle. It is transmitted from the device 3 to the pedestrian terminal device 1 of the driver of the stopped vehicle.

The in-vehicle terminal device 3 of the traveling vehicle may transmit a movement request message addressed to the terminal ID of the in-vehicle terminal device 3 of the stopped vehicle that is stopped at a position that hinders the passage of the own vehicle. Then, the movement request message may be transmitted to the peripheral in-vehicle terminal device 3 without specifying the destination.

Here, when the movement request message is transmitted by designating the destination, the stopped vehicle existing in the vicinity is found by exchanging the status notification message with the in-vehicle terminal device 3 in the vicinity, and the stopped vehicle is found. The terminal ID included in the status notification message from the vehicle-mounted terminal device 3 may be acquired, and the terminal ID may be added to the movement request message and transmitted.

In addition, when the movement request message is transmitted without specifying the destination, the in-vehicle terminal device in the vicinity that has received the movement request message determines the state of the own vehicle (stopped) and the own vehicle and the traveling vehicle that is the transmission source. Even if it is determined from the position information that the received movement request message has been transmitted to the stopped own vehicle, the movement request message is transmitted to the pedestrian terminal device 1 of the driver of the own vehicle. Good.

The process performed by the driver's pedestrian terminal device 1 is the same as that of the fourth embodiment (see FIG. 11).

(8th Embodiment)
Next, the eighth embodiment will be described. It should be noted that the points not particularly mentioned here are the same as those in the above-described embodiment. FIG. 19 is a sequence diagram showing an outline of processing performed in the wireless communication system according to the eighth embodiment.

In the above embodiment, the driver's pedestrian terminal device 1 performs the indoor determination and the distance determination, but in the present embodiment, the in-vehicle terminal device 3 of the stopped vehicle performs the indoor determination and the distance determination. I have to. In this case, the driver's pedestrian terminal device 1 may only perform satellite positioning determination regarding whether or not satellite positioning is possible, and transmit the determination result and the driver's position information to the in-vehicle terminal device 3 of the stopped vehicle.

Next, the procedure of the processing performed by the in-vehicle terminal device 3 will be described. FIG. 20 is a flow chart showing a procedure of processing performed by the in-vehicle terminal device 3.

In the in-vehicle terminal device 3, similarly to the first embodiment (see FIG. 5), a stop determination is made (ST101), and when the own vehicle is stopped (Yes in ST101), the process proceeds to the processing of the stopped vehicle. .. Here, first, as in the first embodiment (see FIG. 5), the road stop determination is performed (ST102).

Here, when the own vehicle is located on the road (Yes in ST102), the communication unit 32 transmits a positioning inquiry message to the driver's pedestrian terminal device 1 (ST141).

Then, when the communication unit 32 receives the positioning result message (including the driver's position information) transmitted from the driver's pedestrian terminal device 1 (Yes in ST142), the driver moves indoors according to the positioning result. It is determined whether or not the patient is in (ST143).

Here, if the driver is not indoors (Yes in ST143), then the position information of the own vehicle acquired by the position information acquisition unit 31 and the driver's pedestrian terminal device 1 acquired from the driver's pedestrian terminal device 1 Based on the position information, it is determined whether or not the driver and the stopped vehicle are separated by a predetermined distance or more (ST144).

Here, when the driver is indoors (No in ST143) and when the driver and the stopped vehicle are separated by a predetermined distance or more (Yes in ST144), the communication unit 12 has a peripheral in-vehicle terminal device 3 The status notification message is exchanged with and to acquire the position information of other vehicles existing in the vicinity of the own vehicle (ST105).

After that, it is the same as that of the first embodiment (see FIG. 5). If the own vehicle is not stopped (No in ST101), the process proceeds to the process of the traveling vehicle, and the process at this time is the same as that of the first embodiment (see FIG. 5).

Next, the procedure of the processing performed by the pedestrian terminal device 1 will be described. FIG. 21 is a flow chart showing a procedure of processing performed by the pedestrian terminal device 1.

In the pedestrian terminal device 1, first, when the communication unit 12 receives a message inquiring about the positioning transmitted from the in-vehicle terminal device 3 of the stopped vehicle (Yes in ST211), the position information acquisition unit 11 can perform satellite positioning. Whether or not it is determined (ST202).

Here, if satellite positioning is not possible (No in ST202), a positioning result message that makes satellite positioning impossible is transmitted to the in-vehicle terminal device 3 of the stopped vehicle (ST212). On the other hand, when satellite positioning is possible (Yes in ST202), a positioning result message enabling satellite positioning is transmitted to the in-vehicle terminal device 3 of the stopped vehicle (ST213).

After that, it is the same as that of the first embodiment (see FIG. 6).

In the eighth embodiment, the distance determination is performed by the in-vehicle terminal device 3 of the stopped vehicle on the premise of the first embodiment, but the distance determination is performed on the stopped vehicle on the premise of other embodiments. It is also possible to use the in-vehicle terminal device 3. For example, in the second embodiment (see FIG. 7) and the third embodiment (see FIG. 9), the traffic obstacle determination is performed by the in-vehicle terminal device 3 of the traveling vehicle, but even in such a configuration, the distance determination is performed. Can be performed by the in-vehicle terminal device 3 of the stopped vehicle.

As described above, embodiments have been described as an example of the techniques disclosed in this application. However, the technique in the present disclosure is not limited to this, and can be applied to embodiments in which changes, replacements, additions, omissions, etc. have been made. It is also possible to combine the components described in the above embodiments to form a new embodiment.

For example, in the above-described embodiment, as one of the conditions for notifying the driver of the movement request, a traffic obstacle determination regarding whether or not the stopped vehicle obstructs the passage of the traveling vehicle is performed, but the vehicle is stopped. The driver may be notified of the movement request only by the presence of the traveling vehicle near the vehicle.

Further, in the above-described embodiment, a road stop determination is made regarding whether or not the stopped vehicle is located on the road, or a parking / stopping prohibition determination is made regarding whether or not the stopped vehicle is stopped in a legal parking / stopping prohibited area. However, it may be determined whether or not the stopped vehicle is located in an area where complaints about annoying parking occur frequently. In this case, the server device collects the complaints of annoying parking from the pedestrian terminal device 1 and the in-vehicle terminal device 3, and the server device performs the required aggregation processing to relate to the area where the complaints of annoying parking frequently occur. The information may be provided to the in-vehicle terminal device 3.

Further, in the above-described embodiment, the case where the driver of the stopped vehicle is notified of the movement request and the driver is moved to move the stopped vehicle has been described. May be good. That is, when the stopped vehicle is an autonomous driving vehicle, when the in-vehicle terminal device 3 of the stopped vehicle receives the movement request message, the vehicle departs and travels on an appropriate road to return to the original stop position in order to pass the traveling vehicle. Make sure that automatic driving is performed so that it returns. In this case, when a movement request message is transmitted to the pedestrian terminal device 1 of the driver and the driver performs an operation of approving the movement of the stopped vehicle, the stopped vehicle may perform the automatic operation of temporary evacuation.

Further, in the above-described embodiment, an example of parking on the street has been described, but the place where the vehicle stops is not limited to the road, and for example, a disabled person provided in the parking lot of various facilities such as a supermarket. It may be a private parking space. In this case, since a vehicle (unlicensed vehicle) on which the disabled person does not ride is parked in the parking space exclusively for the disabled person, if the vehicle on which the disabled person rides (permitted vehicle) cannot be parked, it becomes annoying parking.

Therefore, when a licensed vehicle tries to park in a parking space exclusively for persons with disabilities, if an unauthorized vehicle is parked in the parking space exclusively for persons with disabilities, does the driver of the parked unauthorized vehicle leave the vehicle? Alternatively, when indoors, a movement request message is transmitted from the in-vehicle terminal device 3 of the unauthorized vehicle or the in-vehicle terminal device 3 of the authorized vehicle to the pedestrian terminal device 1 of the driver of the unauthorized vehicle, and the pedestrian terminal of the driver. The device 1 notifies the driver of the stopped vehicle of the movement request.

When the device installed in the parking lot (for example, a roadside device) exchanges a message between the in-vehicle terminal device 3 of the unauthorized vehicle and the in-vehicle terminal device 3 of the permitted vehicle to satisfy the notification condition of the movement request. The movement request message may be transmitted to the driver's pedestrian terminal device 1.

In this case, by registering in advance in the in-vehicle terminal device 3 that the vehicle is a vehicle (permitted vehicle) on which the disabled person rides, the movement request is limited to the vehicle (unlicensed vehicle) on which the disabled person does not ride. Can be sent. Further, by registering the parking lot information regarding the parking space exclusively for the disabled in the map information in advance, it is possible to determine that the parking space is exclusively for the disabled.

Further, in the above-described embodiment, in the pedestrian terminal device 1, when the driver is outdoors in the vicinity of the stopped vehicle, the driver of the stopped vehicle is not notified of the movement request, but the driver stops. Being outdoors near the vehicle is regarded as an emergency, and a message including an emergency notification is transmitted to the in-vehicle terminal device 3 of the stopped vehicle, and a message including the emergency notification is sent to the stopped vehicle. The vehicle may be transmitted from the vehicle-mounted terminal device 3 of the above to the vehicle-mounted terminal device 3 of the traveling vehicle. In addition to the emergency notification, information indicating the status of the relevant vehicle, such as being parked or stopped due to a breakdown or being parked or stopped to save lives, may be notified at the same time.

In this case, when the in-vehicle terminal device 3 of the traveling vehicle receives a message including an emergency notification from the in-vehicle terminal device 3 of the stopped vehicle, the driving of the traveling vehicle causes an emergency situation based on the instruction from the in-vehicle terminal device 3. The car navigation device 4 is made to perform an output operation (for example, screen display, voice output, etc.) for notifying a person. The in-vehicle terminal device 3 itself may perform an output operation for notifying the driver of the traveling vehicle of the occurrence of an emergency situation.

Here, the emergency situation is a case where an accident or a breakdown occurs, or a case where an injured person or a suddenly ill person on the road is rescued. By notifying the driver of a traveling vehicle that such an emergency has occurred, it is possible to prevent an accident in which the traveling vehicle collides with an injured or suddenly ill person on the road or a driver who is helping the driver. In addition, it is possible to prevent the traveling vehicle from being damaged by the fragments of the vehicle damaged by the accident.

In addition, when the pedestrian terminal device 1 of the driver of the stopped vehicle receives a movement request message transmitted from the in-vehicle terminal device 3 of the stopped vehicle, a reply indicating that the vehicle is immediately moved to the vehicle or an immediate response to the vehicle in an emergency situation. The driver inputs an answer to the effect that the vehicle cannot be moved to the vehicle by operating the screen on the mobile information terminal device 2, and in response to the driver's input operation, a message including the answer is sent to the in-vehicle terminal of the traveling vehicle. It may be transmitted to the device 3 to notify the driver of the traveling vehicle of the response from the driver of the stopped vehicle.

Further, for vehicle-to-vehicle communication, it is possible to use communication other than vehicle-to-vehicle communication. Notification that a vehicle that obstructs passage is parked only needs to be notified to the following vehicle in the same lane as the parked / stopped location, and to vehicles in the opposite lane or vehicles that have passed the parked / stopped location. No notification required. Therefore, it is also effective to use visible light communication or the like, which enables communication only in a specific area. For example, it is possible to mount a visible light communication device on a brake lamp or a hazard lamp of a vehicle and notify the following vehicle. In addition, visible light communication equipment is installed on road signs, reflectors in the event of an accident, traffic lights, etc., and position information etc. is notified to road signs etc. from the in-vehicle terminal of the parked and stopped vehicle, and the road signs etc. are followed by visible light communication. It is also possible to notify the vehicle. Furthermore, not only information on parked and stopped vehicles, but also information on pedestrians such as children jumping out and elderly people crossing the road unreasonably can be collected in a communication device mounted on a traffic light and notified to the following vehicle. Is.

In addition, only when the vehicle is unavoidably parked or stopped due to an accident or lifesaving, communication with the following vehicle is performed by visible light communication, and in other cases, communication with the following vehicle is performed by vehicle-to-vehicle communication. May be good. By doing so, there is an effect that it is possible to promptly notify the following vehicle that the vehicle is unavoidably parked or stopped due to an accident or lifesaving.

Further, the present invention is effective not only on general roads but also on highways. For example, if a parked vehicle exists in a place other than an interchange or a service area where the vehicle would not normally park and stop, a message including an emergency notification is notified to the following vehicle. By doing so, the existence of a vehicle parked on the shoulder of the road due to a vehicle breakdown or the like is notified, and at the same time, the following vehicle is notified that there is a pedestrian on the shoulder of the road to reduce accidents on the highway. It becomes possible.

Further, it is also effective to apply the present invention not only to parked and stopped vehicles but also to watching over elderly people and children. When a child is separated from a parent by a predetermined distance or more, or when an elderly person is separated from a family member or home by a predetermined distance or more, an alarm is displayed on the terminal of the parent or family member so that the elderly person or child can be watched over. Become. It is also possible to display an alarm on the terminal of a parent or family even when the child or the elderly is in a place where it should not be or in a dangerous place.

Further, it is also effective to apply the present invention to roll calls in group trips and the like. For example, when a predetermined time arrives, if there is a tourist at a place that is more than a predetermined distance from the bus or the like, it is possible to notify the corresponding traveler that the departure time of the bus or the like is approaching.

Further, the present invention can be applied not only to automobiles but also to bicycles, senior cars, agricultural machines, electric wheelchairs, motorcycles and the like.

The pedestrian terminal device, the in-vehicle terminal device, the wireless communication system, and the movement request notification method according to the present invention have an effect that the notification of the movement request to the driver of the stopped vehicle can be performed only when necessary and appropriate. However, wireless communication between the pedestrian terminal device possessed by the driver and wireless communication with the in-vehicle terminal device in the vicinity, the pedestrian terminal device in the vicinity mounted on the vehicle, and the in-vehicle terminal device of another vehicle. It is useful as an in-vehicle terminal device that performs wireless communication, a wireless communication system that performs wireless communication between the in-vehicle terminal device and the pedestrian terminal device, and a movement request notification method that notifies the driver of the stopped vehicle of a movement request for the stopped vehicle. is there.

1 Pedestrian terminal device 2 Mobile information terminal device 3 In-vehicle terminal device 4 Car navigation device 11 Position information acquisition unit 12 Communication unit 14 Control unit 22 Indoor judgment unit 23 Distance judgment unit 31 Position information acquisition unit 32 Communication unit 34 Control unit 42 Stop Judgment unit 43 Traffic obstacle judgment unit

Claims (9)

It is a pedestrian terminal device that the driver possesses and performs wireless communication with nearby in-vehicle terminal devices.
A position information acquisition unit that acquires the position information of the pedestrian terminal device,
A communication unit that sends and receives messages to and from the in-vehicle terminal device,
The stop is based on the position information of the stopped vehicle and the position information of the pedestrian terminal device included in the message transmitted from the in-vehicle terminal device of the stopped vehicle in which the user of the pedestrian terminal device is the driver. A distance determination is made regarding whether or not the vehicle and the self-pedestrian terminal device are separated by a predetermined distance or more, it is determined that the stopped vehicle and the self-pedestrian terminal device are separated by a predetermined distance or more, and the self-pedestrian terminal device is used. A control unit that notifies the driver of a request to move the stopped vehicle when the vehicle is indoors.
A pedestrian terminal device characterized by being equipped with. The position information acquisition unit acquires the position information of the self-pedestrian terminal device by satellite positioning, and obtains the position information.
The pedestrian terminal device according to claim 1, wherein the control unit determines that the self-pedestrian terminal device is indoors when the satellite positioning is impossible. When the stopped vehicle and the pedestrian terminal device are separated by a predetermined distance or more and the control unit receives a message requesting movement of the stopped vehicle transmitted from the in-vehicle terminal device of the stopped vehicle. The pedestrian terminal device according to claim 1, wherein the driver is notified of a movement request of the stopped vehicle. When the stopped vehicle and the pedestrian terminal device are separated by a predetermined distance or more and the control unit receives a message requesting a movement request transmitted from the in-vehicle terminal device of a vehicle other than the stopped vehicle. The pedestrian terminal device according to claim 1, wherein the driver is notified of a movement request of the stopped vehicle. An in-vehicle terminal device that is mounted on a vehicle and performs wireless communication with a pedestrian terminal device in the vicinity and an in-vehicle terminal device of another vehicle.
The position information acquisition unit that acquires the position information of the own vehicle, and
A communication unit that sends and receives messages to and from the pedestrian terminal device,
Based on the position information of the pedestrian terminal device included in the message transmitted from the pedestrian terminal device possessed by the driver of the own vehicle and the position information of the own vehicle, the stopped own vehicle and the pedestrian A control unit that transmits a message requesting the movement of the own vehicle to the pedestrian terminal device when it is determined that the terminal device is separated by a predetermined distance or more and the pedestrian terminal device is indoors.
An in-vehicle terminal device characterized by being equipped with. When the control unit transmits a message inquiring to the pedestrian terminal device whether satellite positioning is possible or not, and receives a message from the pedestrian terminal device including the fact that satellite positioning is impossible. The vehicle-mounted terminal device according to claim 5, wherein the pedestrian terminal device is determined to be indoors based on the message. A wireless communication system that performs wireless communication between an in-vehicle terminal device and a pedestrian terminal device.
The pedestrian terminal device possessed by the driver is
A position information acquisition unit that acquires the position information of the pedestrian terminal device,
A communication unit that sends and receives messages to and from the in-vehicle terminal device,
The stop is based on the position information of the stopped vehicle and the position information of the pedestrian terminal device included in the message transmitted from the in-vehicle terminal device of the stopped vehicle in which the user of the pedestrian terminal device is the driver. A distance determination is made regarding whether or not the vehicle and the self-pedestrian terminal device are separated by a predetermined distance or more, it is determined that the stopped vehicle and the self-pedestrian terminal device are separated by a predetermined distance or more, and the self-pedestrian terminal device is used. A control unit that notifies the driver of a request to move the stopped vehicle when the vehicle is indoors.
A wireless communication system characterized by being equipped with. A wireless communication system that performs wireless communication between an in-vehicle terminal device and a pedestrian terminal device.
The in-vehicle terminal device is
The position information acquisition unit that acquires the position information of the own vehicle, and
A communication unit that sends and receives messages to and from the pedestrian terminal device,
Based on the position information of the pedestrian terminal device included in the message transmitted from the pedestrian terminal device possessed by the driver of the own vehicle and the position information of the own vehicle, the stopped own vehicle and the pedestrian A control unit that transmits a message requesting the movement of the own vehicle to the pedestrian terminal device when it is determined that the terminal device is separated by a predetermined distance or more and the pedestrian terminal device is indoors.
A wireless communication system characterized by being equipped with. It is a movement request notification method for notifying the driver of a stopped vehicle of a movement request for a stopped vehicle.
In the pedestrian terminal device of the driver, the position information of the own pedestrian terminal device is acquired, and the position information is acquired.
In the in-vehicle terminal device of a stopped vehicle driven by the driver, the position information of the own vehicle is acquired, and the position information of the own vehicle is acquired.
Based on the position information of the pedestrian terminal device of the driver and the position information of the stopped vehicle, the distance determination regarding whether or not the pedestrian terminal device of the driver and the stopped vehicle are separated by a predetermined distance or more is performed.
When it is determined that the pedestrian terminal device of the driver and the stopped vehicle are separated by a predetermined distance or more and the pedestrian terminal device of the driver is indoors, the pedestrian terminal device of the driver moves. A movement request notification method characterized by notifying the driver of the request.

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