The present invention provides an in-vehicle communication device, an in-vehicle communication system and an in-vehicle communication method which make it possible to detect a high-risk message transmitted into the in-vehicle communication system by a simple configuration. This in-vehicle communication device is provided with a communication unit bus-connected to an in-vehicle communication bus, and is provided with a communication control unit that controls transmission and reception of messages including object messages to be counted by the communication unit, and causes a specified messageincluding authentication information to be intermittently transmitted from the communication unit, wherein the communication control unit includes, in the specified message to be transmitted at a first time point, the number of times of transmission of the object messages transmitted between the transmission of the most recent specified message transmitted before the first time point and the firsttime point.

    本发明提供一种车载通信装置、车载通信系统以及车载通信方法,能够通过简单的结构检测出发送到车载通信系统内的危险性高的消息。一种车载通信装置,其具备与车载通信总线进行总线连接的通信部,所述车载通信装置具备通信控制部,该通信控制部通过所述通信部对包括作为计数对象的对象消息在内的消息的收发进行控制,并使包含认证信息的特定消息间歇性地从所述通信部发送,该通信控制部使在第一时刻发送的所述特定消息包含从在所述第一时刻之前发送的最近的特定消息发送后到该第一时刻为止所发送的所述对象消息的发送次数。


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    Titel :

    IN-VEHICLE COMMUNICATION DEVICE, IN-VEHICLE COMMUNICATION SYSTEM AND IN-VEHICLE COMMUNICATION METHOD


    Weitere Titelangaben:

    车载通信装置、车载通信系统以及车载通信方法


    Beteiligte:
    TAKADA HIROAKI (Autor:in) / KURACHI RYO (Autor:in) / UEDA HIROSHI (Autor:in)

    Erscheinungsdatum :

    02.06.2020


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    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