Patent ID: 11956262
Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
Field: Digital communication (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 7:
8. The anomaly detection device according to claim 1, wherein
the anomaly detection device stores in advance a vehicle state in which communication is permitted for each communication ID,
the detection rule generator circuit acquires a current vehicle state in response to receiving the communication establishment frame, and determines that the communication establishment frame is anomalous when the current vehicle state differs from the vehicle state in which the communication is permitted as stored in advance for the communication ID written in the communication establishment frame, and
the anomaly detector circuit acquires a current vehicle state in response to receiving the communication frame, and detects the communication frame as an anomalous frame when the current vehicle state differs from the vehicle state in which the communication is permitted as stored in advance for the communication ID written in the communication frame.