Patent ID: 11909748
Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 11:
12. A monitoring device in an on-board network under a time-triggered communication protocol based on time slots, the on-board network being connected to, for one of branches, one or more electronic control devices each transmitting and receiving a frame within a predetermined time slot, the monitoring device being provided for a corresponding one of the branches and comprising:
a frame transmitting and receiving hardware unit that receives an error notification frame transmitted for notifying of an occurrence of an error in the frame flowing on the on-board network and containing information identifying a type of the frame subjected to the error at the occurrence of the error in the frame; and
a hardware error detector that regards, as a frame to be invalidated, the frame subjected to the error and included in the error notification frame received, and shifts the monitoring device to an invalidation mode for invalidating reception of subsequent frames, if no error is detected in the corresponding one of the branches with respect to the frame.