A fault diagnosis system design for space application

With the development of Aerospace Engineering, space application system becomes more and more complex. ln Chinese space station in the future, the number of payloads will reach more than one hundred. How to carry on effective management to the numerous and complex payloads, to find and eliminate payload fault in time is an urgent problem to be solved. This paper presents a method for the design of fault diagnosis system for complex payloads. Usingtask decomposilion and integratedfault diagnosis method to solve the fault diagnosis problem of huge and complex system. At the same time, the application of SOM algorithm is discussed, it has certain guiding significance for the diagnosis and follow-up of application.