First relay device, second relay device, first relay method, second relaying method, first relay program, second relay program, and relay system

摘要

Problem to be solved: to provide a first relay device, a second relay device, a first relay method, a second relay method, a first relay program, a second relay program, and the like, which can detect an error in the relay information used in relaying a communication frame in a plurality of repeater mounted on a vehicle And a relay system.The central receiver 120 of the central repeater 12 receives a communication frame transmitted from another relay device.The central specific part 124 specifies a relay destination bus corresponding to the communication frame ID of the central relay information as a relay destination bus of the communication frame to be received.The central notification signal output unit 128, if the communication frame ID of the communication frame received by the central receiver 120 is not included in the communication frame ID of the central relay information, and is not specified by the central specified portion 124, if the bus of the relay destination of the received communication frame is not specified by the central specified portion An abnormality notification signal representing abnormality is output to the repeater 14.Diagram