Design of Remote Fault Diagnosis System on Aircraft

In order to improve the flight safety and establish a better environment for aircraft maintenance, we design a remote fault diagnosis system of aircraft. The system is based on .NET framework and latest aircraft fault diagnosis technologies. Under a hierarchical design conception, it is divided into three parts: onboard aircraft diagnosis system, ground diagnosis centre and remote expert client. The structure and function of these three parts are fully developed in the paper. Some intelligent fault diagnosis algorithms are integrated in the system so as to improve the system reliability. And the advantages of the .NET framework are fully utilized in the system such as: wild distribution of the database, high security and resource sharing. By using network technologies, the aircraft research and development centre, airplane maintenance department and airplane manufacturers are organized in a network as sources for fault diagnosis. The effectiveness and advantages of the proposed system is testified by its application on the diagnosis of a surge on a plane.