Aircraft field service fault diagnosis system and method

Abstract

The invention relates to the technical field of civil aviation maintenance, in particular to an aircraft field fault diagnosis system and method, and the system comprises a fault query module, an expert knowledge base module, a fault database module, a fault probability prediction module and a fault recording module. The fault query module comprises a fault information query interface; the expert knowledge base module is used for storing technical expert knowledge, reasons of each fault and processing methods of the reasons of each fault; the fault database module is used for storing the number of the failed aircraft, the fault occurrence time, the fault information and the actual fault occurrence reason; the fault probability prediction module stores the prediction probability generated by each fault reason; and the fault recording module writes the data into a fault database. According to the aircraft system fault information, the fault reasons and the fault probability, the fault handling measures and the related circuit diagrams corresponding to each fault reason are automatically given, the time for formulating a troubleshooting scheme after the aircraft system fault occurs is greatly shortened, and the efficiency and the accuracy of aircraft fault positioning are improved.

Description

technical field [0001] The invention relates to the technical field of civil aviation maintenance, in particular to an aircraft field fault diagnosis system and method. Background technique [0002] Aircraft maintainability and support are two important indicators for considering aircraft dispatch capability. The airborne systems of modern aircraft generally use onboard digital computers to realize real-time identification and isolation of aircraft system failures. A typical aircraft system includes flight control system, power supply system, lighting system, alarm system, atmospheric system, etc. When any system of the aircraft fails, the onboard digital computer will perform fault detection and record the fault, and provide aircraft system maintenance services for aircraft ground maintenance personnel. Fault diagnosis location. [0003] At present, when an aircraft has a system failure, the ground maintenance personnel first use the aircraft auxiliary maintenance device t...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems of time-consuming fault diagnosis and positioning of existing aircraft systems, low accuracy, and high technical level requirements for ground personnel, the present invention provides an aircraft field fault diagnosis system, including a fault query module, an expert knowledge base module, and a fault database module, failure probability prediction module and failure record module; the failure query module includes a failure information query interface; the expert knowledge base module stores technical expert knowledge, the cause of each failure and the processing method of each failure cause; the failure database module stores the occurrence Faulty aircraft number, fault occurrence time, fault information and the actual cause of the fault; the fault probability prediction module stores the predicted probability of each fault cause; the fault record module writes the data into the fault database

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