Research on fault-tolerant flight control computer for unmanned air vehicle

-With the development of high altitude long endurance IJAV, blight Control System in high altitude long endurance CA V must have so strong failure-tolerant ability that it can improve the whole system reliability. using redundancy technique can extremely improve failure-tolerant and reliability of flight control system. Compared among civil and military aircraft. and 1141./ the architectures and redundancy management of rault-tolerant flight control computer (FCC) systems are introduced. Then, give a new architectures and redundancy management offault-tolerant FCC,systems for high altitude long endurance U4r: The experimental results show that the system meets the (AV's demand of high reliability, low cost and good expansibility, maximize the utilization of system resources and effectively improve the fault tolerant capability of airborne computer and the reliability of sensor subsystem. With fault injection test method, the results show that the fault tolerant methods improve fault detection rate andfault isolation rate.