Pedestrian terminal device, vehicle-mounted terminal device, pedestrian-to-vehicle communication control device, pedestrian-to-vehicle communication system, and pedestrian-to-vehicle communication method

A vehicle-mounted terminal device which is mounted on a vehicle and performs pedestrian-vehicle communication with a pedestrian terminal device, the vehicle-mounted terminal device comprising:

• a satellite positioning system that acquires a location of the vehicle-mounted terminal device;
• a pedestrian-vehicle communication device that communicates with the pedestrian terminal device by the pedestrian-vehicle communication;
• and
• a controller that controls the pedestrian-vehicle communication device,
• wherein the pedestrian-vehicle communication device receives notification information transmitted from another vehicle-mounted terminal device that is present in the vicinity of the vehicle-mounted terminal device, the notification information including a location of the other vehicle-mounted terminal, and
• wherein the controller determines whether or not a vehicle on which the vehicle-mounted terminal device is mounted is in an enclosure status based on the location of the vehicle-mounted terminal device and the location of the other vehicle-mounted terminal device included in the notification information, the enclosure status representing that the vehicle on which the vehicle-mounted terminal device is mounted is surrounded by nearby vehicles in a vehicle group including the vehicle and the nearby vehicles,
• the controller stops the pedestrian-vehicle communication in response to determining that the vehicle is in the enclosure status, and
• the controller performs the pedestrian-vehicle communication in response to determining that the vehicle on which the vehicle-mounted terminal device is mounted is located at an outer circumference of the vehicle group.

A pedestrian-to-vehicle communication control device which controls pedestrian-vehicle communication performed between a vehicle-mounted terminal device mounted on a vehicle and a pedestrian terminal device carried by a pedestrian, the pedestrian-to-vehicle communication control device comprising:

• a communication device that communicates with each of a plurality of the pedestrian terminal devices;
• and
• a controller which controls the pedestrian-vehicle communication in each of the plurality of pedestrian terminal devices;
• wherein the communication device receives location information transmitted from each of the plurality of pedestrian terminal devices,
• wherein the controller determines whether or not a pedestrian who carries each of the plurality of pedestrian terminal devices is in an enclosure status based on the location information transmitted from each of the plurality of pedestrian terminal devices, the enclosure status representing that the pedestrian is surrounded by nearby pedestrians in a pedestrian group including the pedestrian and the nearby pedestrians,
• the controller instructs the pedestrian terminal device to stop the pedestrian-vehicle communication in response to determining that the pedestrian who carries the pedestrian terminal device is in the enclosure status, and
• the controller instructs the pedestrian terminal device to perform the pedestrian-vehicle communication in response to determining that the pedestrian who carries the pedestrian terminal device is located at an outer circumference of the pedestrian group.

A pedestrian-to-vehicle communication system which includes a vehicle-mounted terminal device mounted on a vehicle and a pedestrian terminal device carried by a pedestrian, and which performs pedestrian-vehicle communication between the vehicle-mounted terminal device and the pedestrian terminal device,

• wherein the pedestrian terminal device includes:
• a satellite positioning system that acquires a location of the pedestrian terminal device,
• a pedestrian-vehicle communication device that communicates with the vehicle-mounted terminal device by the pedestrian-vehicle communication, and
• a controller that controls the pedestrian-vehicle communication device,
• wherein the pedestrian-vehicle communication device receives notification information transmitted from another pedestrian terminal device that is present in the vicinity of the pedestrian terminal device, the notification information including a location of the other pedestrian terminal, and
• wherein the controller determines whether or not the pedestrian who carries the pedestrian terminal device is in an enclosure status based on the location of the pedestrian terminal device and the location of the other pedestrian terminal device included in the notification information, the enclosure status representing that the pedestrian who carries the pedestrian terminal device is surrounded by nearby pedestrians in a pedestrian group including the pedestrian and the nearby pedestrians,
• wherein the controller stops the pedestrian-vehicle communication in response to determining that the pedestrian who carries the pedestrian terminal device is in the enclosure status, and
• wherein the controller performs the pedestrian-vehicle communication in response to determining that the pedestrian who carries the pedestrian terminal device is located at an outer circumference of the pedestrian group.

A pedestrian-to-vehicle communication method for performing pedestrian-vehicle communication between a vehicle-mounted terminal device mounted on a vehicle and a pedestrian terminal device carried by a pedestrian, the method comprising:

• by the pedestrian terminal device,
• acquiring location information of the pedestrian terminal device;
• receiving location information transmitted from another pedestrian terminal device that is present in the vicinity of the pedestrian terminal device;
• and
• determining whether or not the pedestrian who carries the pedestrian terminal device is in an enclosure status based on the location information of the pedestrian terminal device and the location information transmitted from the other pedestrian terminal device, the enclosure status representing that the pedestrian who carries the pedestrian terminal device is surrounded by nearby pedestrians in a pedestrian group including the pedestrian and the nearby pedestrians,
• stopping the pedestrian-vehicle communication in response to determining that the pedestrian who carries the pedestrian terminal device is in the enclosure status, and
• performing the pedestrian-vehicle communication in response to determining that the pedestrian who carries the pedestrian terminal device is located at an outer circumference of the pedestrian group.