Aircraft fault positioning method based on HMC code correlation analysis

Abstract

The invention relates to an aircraft fault positioning method based on HMC code correlation analysis. Based on aircraft airborne fault prediction and health management system architecture operation, HMC codes are aircraft fault codes, an association relation HMC chain is established for fault phenomena and fault reasons by analyzing a large amount of flight data and combining with existing designspecifications, an HMC code association relationship database is formed, and airborne software searches the association relationship database, directly outputs a fault source HMC code by searching theincidence relation database, shields other fault HMC codes caused by a source fault, and does not display the shielded HMC code after a flight mission is finished, so that the interference of a non-source fault HMC code is eliminated, source fault equipment is directly indicated, and fault positioning is realized.

Description

technical field [0001] The invention belongs to aircraft fault location technology, in particular to the fault location technology based on aircraft fault code (HMC). Background technique [0002] In order to locate and record the faults that occur during the flight of the aircraft, the existing advanced aircraft adopts the PHM system architecture. After the aircraft lands, the ground maintenance personnel can check all the fault information and fault information that occurred during the flight by extracting the fault list. Including fault code (HMC), fault occurrence time, fault site parameter values, fault reporting equipment, etc. After checking the faults, ground maintenance personnel often need to check more detailed data to judge whether the fault reporting logic is correct and whether it is a false alarm, and based on maintenance experience, sort out the relationship between many fault codes (HMC) and locate the real fault. faulty equipment or components, thereby rep...

AI Technical Summary

Problems solved by technology

Aiming at the cumbersome and inefficient manual troubleshooting process in the existing flight support process, the present invention proposes an aircraft fault location method based on HMC code correlation analysis. By analyzing a large amount of flight data and combining existing design experience, the The fault phenomenon and the fault cause establish a correlation HMC chain to form a HMC code correlation database. The airborne software directly outputs the fault source HMC code by searching the correlation database, and shields other fault HMC codes caused by the source fault. , the shielded HMC code will not be displayed, thereby greatly reducing the HMC reading volume of ground maintenance personnel, eliminating the interference of non-source fault HMC codes, directly indicating the source fault equipment, realizing fault location, and giving questions to ground maintenance personnel at the same time The solution greatly shortens the maintenance time, simplifies the troubleshooting process, and shortens the continuous dispatch time of the aircraft

Images