To provide an on-vehicle relay device, an on-vehicle communication system, a communication program, and a communication method, capable of being expected to reduce an adverse effect caused by connection of an unauthorized device to a communication line in a vehicle.SOLUTION: An on-vehicle relay device 20 to which a plurality of communication lines 2, 3 mounted on a vehicle are connected relays data transmission/reception between the plurality of communication lines. The on-vehicle relay device comprises: a relay limitation unit 21b for limiting relay of data transmitted by a communication device newly connected to one communication line to the other communication line; a behavior analysis unit 21e for analyzing operation of the communication device on the basis of correspondence information between an input value to the communication device and an operation result of the communication device corresponding to the input value; and a limitation cancellation unit 21c for cancelling limitation of relay by the relay limitation unit depending on an analysis result by the behavior analysis unit.SELECTED DRAWING: Figure 2

    【課題】車両内の通信線に対する不正な装置の接続による悪影響を低減することが期待できる車載中継装置、車載通信システム、通信プログラム及び通信方法を提供する。【解決手段】車載中継装置は、車両に搭載された複数の通信線2、3が接続され、複数の通信線の間のデータ送受信を中継する車載中継装置20であって、一の通信線に対して新たに接続された通信装置が送信するデータの他の通信線への中継を制限する中継制限部21bと、通信装置への入力値及び当該入力値に応じた通信装置の動作結果の対応情報に基づいて、通信装置の動作を解析する挙動解析部21eと、挙動解析部の解析結果に応じて前記中継制限部による中継の制限を解除する制限解除部21cとを備える。【選択図】図2


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    Title :

    ON-VEHICLE RELAY DEVICE, ON-VEHICLE COMMUNICATION SYSTEM, COMMUNICATION PROGRAM, AND COMMUNICATION METHOD


    Additional title:

    車載中継装置、車載通信システム、通信プログラム及び通信方法


    Contributors:
    SANO YUKI (author)

    Publication date :

    2021-02-22


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    H04L TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION , Übertragung digitaler Information, z.B. Telegrafieverkehr / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / H04B TRANSMISSION , Übertragung



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