COMMUNICATION LOG AGGREGATION DEVICE AND COMMUNICATION LOG AGGREGATION METHOD

    公开(公告)号:US20220337494A1

    公开(公告)日:2022-10-20

    申请号:US17854182

    申请日:2022-06-30

    Abstract: A communication log aggregation device includes: a communicator that obtains flow information including one or more flow records and first statistical information for each flow from each of collection devices, the one or more flow records each including flow identification information included in a message received by at least one observer that is disposed in a control network system, the flow being classified based on the flow identification information, the collection devices each collecting the one or more flow records and the first statistical information for each flow from the message received by the observer; and a flow aggregator that generates aggregated flow information by performing at least one of the following: (i) selecting at least one of the one or more flow records, (ii) adding second statistical information, and (iii) deleting at least one of the one or more flow records, and outputs the aggregated flow information.

    ANOMALY DETECTION METHOD, RECORDING MEDIUM, AND ANOMALY DETECTION SYSTEM

    公开(公告)号:US20220263849A1

    公开(公告)日:2022-08-18

    申请号:US17739935

    申请日:2022-05-09

    Abstract: An anomaly detection method in an in-vehicle network system in which a plurality of ECUs are connected. Among the plurality of ECUs, at least one ECU includes a detector which determines whether a received message satisfies a predetermined rule, and the at least one ECU transmits the detection result determined to a network. The anomaly detection method includes (i) receiving the detection result from the network, and storing the detection result received in a memory, (ii) determining whether the detection result is received within a predetermined time, and storing a determination result in the memory in association with the detection result, and (iii) outputting a message to the outside, the message including the detection result in association with the determination result.

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