Patent ID: 8471729
Filing Date: 2013-06-25
Classification: G01C,G08G,H04L

Abstract:
1. A road-vehicle communication system comprising a roadside apparatus for transmitting contents and a vehicle-mounted device for reproducing the contents transmitted from the roadside apparatus which are communicatively connected to each other, wherein it is judged whether or not the vehicle-mounted device is a member, and if it has been judged to be a member, the roadside apparatus receives uplink information including communication history information from the vehicle-mounted device having entered into a communication area and a series of contents is transmitted from the roadside apparatus to the vehicle-mounted device, the series of contents consisting of a plurality of contents based on the uplink information, wherein the roadside apparatus comprises: a control unit configured to decide a content which the roadside apparatus starts transmitting to the vehicle-mounted device, which is a communication party, from among the series of contents and transmitting the other contents succeeding the decided transmission start content; and a transmission history storage unit configured to store transmission history information, which indicates the content transmitted last among the series of contents for each vehicle-mounted device, wherein the control unit identifies the vehicle-mounted device to be a communication party based on vehicle-mounted device information transmitted from the vehicle-mounted device upon starting the communication, and decides the content succeeding the content transmitted last to be the transmission start content.