摘要：The ARINC659 backplane bus is suitable for high safety and high reliability requirements of aircraft on-board computer communication systems. This paper analyzes the structure of ARINC 659 serial backplane bus and the bus fault tolerance mechanism. On the basis of backplane bus, a 4 degree of aviation fault-tolerant computer is designed. Moreover, the computer architecture and computer system of the instruction branch and monitoring branch are designed in the computer channel. The fault-tolerant management of the computer is realized by bus fault tolerance, redundancy voting between computers and the monitoring of the instruction and monitoring branches.
