The invention discloses a quick fault detection
system for spacecrafts. The quick fault detection
system comprises a measurement module, a fault detection and diagnosis module, an interface module and an output module. State signals of sensors can be received by the measurement module and can be inputted into
signal conditioning circuits of a LABVIEW platform in the measurement module so as to obtain measurement data of electric analog signals; the measurement data can be received by the interface module and can be integrated according to the time so as to obtain matrix forms;
information fusion can be carried out on the integrated measurement data by the fault detection and diagnosis module so that the measurement data can be converted into CLIPS fact structures, eligible measurement data can be deduced by
inference machines according to rules of an expert
knowledge base, positioning and detection can be carried out by the aid of fault tree rules, and maintenance suggestion can be obtained; positioning and detection results and the maintenance suggestion can be displayed by the output module. The quick fault detection
system has the advantages that knowledge is easy to acquire and analyze, and the quick fault detection system is high in rule
inference efficiency; effects of predicting faults can be realized according to judgment on current working states of the spacecrafts, accordingly, possible consequence can be eliminated in advance, and the quick fault detection system has low hardware requirements.