A Multi-Level Interactive Intelligent Fault Diagnosis Method for Aviation Electronic Systems

In this paper, a research on multi-level interactive intelligent fault diagnosis method was conducted. The study took the general processing module as a typical application object, constructed a multi-level interactive intelligent fault diagnosis technology verification platform for aviation electronic systems, compiled a fault isolation program set, and conducted experiments using simulated fault injection. The real-time fault diagnosis technology of onboard aviation electronic systems based on the Time Fault Propagation Graph (TFPG) model was studied, and the main functions and performance indicators of the diagnostic system were verified. The maintenance assistance capability of the aviation electronic control system was improved, the fault location speed of onboard maintenance personnel was accelerated, the average maintenance time was shortened, and the available ratio of aviation equipment was increased.