A communication system, provided with: on-board units mounted on vehicles; a server; and a broker for mediating communication between a plurality of on-board units and between the on-board units and the server. The on-board units have a travel subject area specifying unit, a travel information generation unit for generating travel information, a message transmission unit for transmitting a message including the travel information, a message subscription unit for requesting a subscription for messages, and a guidance information generation unit for generating guidance information. The server has a travel information acquisition unit for requesting a subscription for messages including the travel information, a traffic information generation unit for generating traffic information, and a traffic information transmission unit for transmitting a message including the traffic information. The broker has a message distribution unit for distributing messages to the on-board units and the server.


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    Title :

    Communication system vehcle-mounted device and communication method


    Publication date :

    2019-07-03


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English



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