Terminal apparatus mounted on a vehicle to perform vehicle-to-vehicle communication

摘要

A map data storage unit holds map data in which a road ID is allocated, as identification information, to every preset section of at least part of roads. A traffic jam determination unit determines whether the section corresponding to every road ID is congested. A transmission unit performs broadcast transmission of vehicle data including a road ID and the traveling speed of a vehicle from the vehicle traveling in each section of a road. At the time, the transmission unit forms a frame in which the received vehicle data of other vehicle and the vehicle data of a driver's vehicle are combined. An information compressing unit compresses an amount of data by deleting the traveling speed from the frame with respect to a section that has been determined not to be congested by the traffic jam determination unit.

主权项

1. A terminal apparatus to be mounted on a vehicle to perform vehicle-to-vehicle communication, comprising:
a transmission unit configured to form and transmit a frame in which vehicle data received from a terminal apparatus mounted on other vehicle and vehicle data of a driver's vehicle are combined, the vehicle data of the driver's vehicle including both a road ID of a road on which the driver's vehicle is traveling and traveling speed, by referring to map data in which a road ID is allocated, as identification information, to every preset section of at least part of roads; a traffic jam determination unit configured to determine whether the section corresponding to the every road ID is congested; and an information compressing unit configured to delete traveling speed from the frame with respect to a section that has been determined not to be congested by the traffic jam determination unit.