ON-VEHICLE MULTIPLEX TRANSMITTER

摘要

PURPOSE:To attain early system recovery by giving a command to send status information onto a transmission line in a 1st node controlled according to a decentralized multiplex protocol after an error is detected at a 2nd node managing the communication of the entire system. CONSTITUTION:Plural communication nodes connecting mutually via a common multiplex transmission line and a monitor means monitoring the elapsed prescribed time are provided to the transmitter. Then the plural communication nodes consist of plural 1st nodes including at least a communication control unit controlling inter-node communication according to a decentralized multiplex protocol and one or plural 2nd nodes including at least a management unit managing the entire system. The 2nd node receives the detection of the prescribed elapse by a monitor means and gives a command to allow the 1st node to send status information to the transmission line. Thus, proper correspondence is applied to a momentary fault and a solid fault and the system recovery at a fault state is implemented properly.