Redundant Flight Control Computer System

The flight control computer system is important for aeroplane, and its' level decides performance and safety of aeroplane. Some extent, an advanced flight control computer system has become a symbol of a modem airplane.The flight control computer is important for useability, reliability and stability of system as a component, and the software system of flight control computer is important to performance of flight control computer.The paper researches and develops a software and hardware system of flight control computer on based VxWorks and PC 104 for dissertation that researches the testing aerocraft about the flight platform of pilotless aircraft. The main contents in the paper are just as follows:Firstly, to design the hardware of communication of flight control computer system.This passage uses three pc104 as the flight control computer. Use three dual-ported memory to store the data which used in test. Use CPLD as the logic control circuit, Also integrate A/D, D/A ,DI/O on mother bord.Secondly, to design the software of communication of flight control computer system. Analyse the environment and method of software design. Analyse the internal and external interface method of the flight control computer system.Thirdly, analyzing the reliability of the whole flight control system which was fixed.Finally, the simulation of triplex Hot-redundancy flight control computer is conducted in the laboratory. The experiment's result shows that triplex Hot-redundancy flight control computer's hardware and software design is rational, feasible and reliable.