Design of Distributed Fault-Tolerant System for UMS

It is a trend that the aircraft onboard machine-electronic equipment is controlled and managed integrated. Based on distributed fault tolerant technique, high reliable bus technique of avionics and application technique of embedded real-time operation system, a design and an implementation of a distributed fault tolerant computer system which can control and manage aircraft onboard machine-electronic equipment integrated are presented. The work feature and structure of the system, the communication network, the redundancy management and the real-time fault-tolerant administer software is discussed.