VEHICLE-MOUNTED DEVICE USED IN ADVANCED TRAFFIC SYSTEM, COMMUNICATION METHOD, AND ADVANCED TRAFFIC SYSTEM USING SAID DEVICE AND METHOD

摘要

In order to increase the reliability and convenience of vehicle-to-vehicle communication in a group, a vehicle-mounted device used in an advanced traffic system according to the present invention is provided with: an access point having a plurality of channels under control and casting various information; and a vehicle-mounted device directly communicating with the access point or mounted in a vehicle that performs multihop communication. The access point is provided with a broadcast means for broadcasting the content of casting information to a plurality of channels as service information. The vehicle-mounted device is provided with a channel switch means that performs channel switching so as to enable reception of desired service on the basis of the service information.