A Control and Monitor CAN BUS Network Based on Fault-Tolerant Control Theory

摘要

The messages transmitted in the CAN bus network of a large-scale weapon system can be classified into urgent messages.instructing messages and state messages.There is a conflict between the real-time property of the nrgent or the instructing messages and the continuity of the state messages.In this paper,a method based on fault-tolerant control theory is present to solve the conflict.In the structure of the network,we adopt two CAN buses to transmit the difierent messages.But the reliability of the network is affected.So we propose the operation method based on fault-tolerant control theory.It can guarantee the reliability by buses switching.Based on the network structure and operation method.we analysis the protocols of the two buses.At last.the network is validated on a four nodes experiment platform.The resuits of the experiment indicate that the design of the system is successful and meets the requirement of the system.The methods which the paper presented can aisO bring ideas to other control system based on the network.