Study on a method for traffic risk detection and notification with inter-vehicle communication and designing its testbed for evaluation

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In this study, we have designed and evaluated systems for traffic safety. First, we have proposed a method for localization of pedestrians with directional antennas and inter-vehicle communication, and we have confirmed that the localization with multiple vehicles achieves higher accuracy than that with one vehicle. Next, we have proposed a message routing protocol in a vehicular ad hoc network using the planned route of each vehicle, and we have confirmed that the protocol can widely improve the message delivery ratio and reduce message overhead. Finally, we have developed an intersection-bird-view composite system using the on-board camera of each vehicle and inter-vehicle communication and a testbed for evaluating the system.