Diagnosis database generation method and device

Abstract

The invention discloses a diagnosis database generation method and device, and the method comprises the steps: testing a tested system based on a pre-built correlation model which comprises a first corresponding relationship; wherein the first corresponding relationship is a corresponding relationship between the fault mode and the test item; obtaining a test result, wherein the test result comprises a second corresponding relationship; wherein the second corresponding relationship is a corresponding relationship between the test item and the fault report; and generating a dependency relationship matrix of the fault mode and the fault report according to the first corresponding relationship and the second corresponding relationship, and generating a diagnosis database according to the dependency relationship matrix. According to the diagnosis database generation method and device, the generation efficiency and accuracy of the diagnosis database can be improved.

Description

technical field [0001] The invention relates to data processing technology, in particular to a method and device for generating a diagnosis database. Background technique [0002] Modern aircraft are usually equipped with a central maintenance system or health management system, which is used to assist maintenance personnel to quickly determine the failure status of each system of the aircraft and suggestions for troubleshooting. [0003] The central maintenance system / health management system is connected with each onboard system / computer with self-monitoring capability or external monitoring capability on the aircraft, so it can centrally display various faults or abnormal conditions scattered in various areas of the entire aircraft. [0004] Based on numerous abnormal signals sent by the onboard computer system, the central maintenance system / health management system generates a fault status report of each system, which is stored in the memory in electronic form, allowing...

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Problems solved by technology

[0005] At present, the difficulty of the system design is that under normal fault conditions, due to the highly complex cross-linking situation of the system, even a small number of fault causes will receive many abnormal signals, and these abnormal signals come from the surrounding systems where the real fault source is located. And each computer of the next-level system connected to it, displaying these abnormalities to the maintenance personnel as they are will bring great doubts and interference to the actual maintenance work, resulting in wrong repairs, so it is necessary to carry out different abnormal signals from the same fault. merge display

What is more difficult is that complex systems with different functions are often designed independently. Even the designers who are proficient in this system cannot predict the form or number of possible fault reports of other systems, and cannot provide the knowledge required for fault report merging

[0006] Traditionally, in order to solve the problem of fault display, various fault elimination or synthesis methods use the form of logic equations to determine whether a specific fault message should be displayed under a specific fault combination state, and this expression containing multiple logical variables Generally, the designer manually writes each piece of fault information one by one according to the cause and consequence of each piece of fault information, while the engineering process of writing logic equations and other testable analysis processes (testable modeling) are often separated from personnel, time, process and data sources. As a result, the results generated by logic equations and other design processes are often inconsistent, and information cannot be automatically obtained from existing design data. Manual analysis is required from scratch, which brings many human errors. These errors can only be detected during actual operation. step by step

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