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公开(公告)号:US20240250976A1
公开(公告)日:2024-07-25
申请号:US18590182
申请日:2024-02-28
Inventor: Tomoyuki HAGA , Hideki MATSUSHIMA , Manabu MAEDA , Yoshihiro UJIIE , Takeshi KISHIKAWA , Junichi TSURUMI , Jun ANZAI
CPC classification number: H04L63/1425 , G07C5/0808 , H04L12/40 , H04L63/1441 , H04L67/12 , H04W4/40 , H04W4/44 , H04L2012/40215 , H04L2012/40273 , H04W4/08
Abstract: An anomaly detection server is provided. The anomaly detection server is a server for counteracting an anomalous frame transmitted on an on-board network of a single vehicle. The anomaly detection server acquires information about multiple frames received on one or multiple on-board networks of one or multiple vehicles, including the single vehicle. The anomaly detection server, acting as an assessment unit that, based on the information about the multiple frames and information about a frame received on the on-board network of the single vehicle after the acquisition of the information about the multiple frames, assesses an anomaly level of the frame received on the on-board network of the single vehicle.
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2.
公开(公告)号:US20200334926A1
公开(公告)日:2020-10-22
申请号:US16918036
申请日:2020-07-01
Inventor: Junichi TSURUMI , Takamitsu SASAKI
Abstract: An anomaly detection electronic control unit connected to an in-vehicle network includes: a communicator that receives a first communication message indicating speed information of a vehicle including the in-vehicle network and a second communication message indicating peripheral information of the vehicle; a processor; and a memory including at least one set of instructions that, when executed by the processor causes the processor to perform operations including: (A) determining a first traveling state of the vehicle based on the speed information and a second traveling state of the vehicle based on the peripheral information; (B) determining, by comparing the first traveling state with the second traveling state, that the first communication message is anomalous when the first traveling state is different from the second traveling state; and (C) executing processing to handle an anomaly when the first communication message is determined to be anomalous.
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3.
公开(公告)号:US20210226872A1
公开(公告)日:2021-07-22
申请号:US17201839
申请日:2021-03-15
Inventor: Yoshihiro UJIIE , Tomoyuki HAGA , Manabu MAEDA , Hideki MATSUSHIMA , Takeshi KISHIKAWA , Junichi TSURUMI , Hisashi KASHIMA , Yukino TORIUMI , Takuya KUWAHARA
Abstract: An abnormality detection method is provided. The abnormality detection method is for detecting an abnormality that may be transmitted to a bus in an on-board network system. The on-board network system includes a plurality of electronic controllers that transmit and receive messages via the bus in a mobility entity. In the abnormality detection method, for example, a gateway transmits identification information to a server and receives a response determining a unit time. An operation process is performed using feature information based on a number of messages received from the bus per the determined unit time and using a model indicating a criterion in terms of a message occurrence frequency. A judgment is made as to an abnormality according to a result of the operation process.
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