Airborne computer fault rapid positioning method

Abstract

The invention provides an airborne computer fault rapid positioning method, which comprises the steps of defining fault record content and a fault transmission relationship of each fault level layer by layer from bottom to top according to preset fault levels and based on airborne computer hardware configuration and a software control strategy; recording faults in real time by the airborne computer, and respectively storing the faults in different address areas of the nonvolatile memory according to the fault levels; according to a preset fault RTC time range (t0-t1, t0 + t1), obtaining the fault record content of each fault of the top fault level, and according to the fault record content and the fault transmission relationship, indexing the faults of each level corresponding to the top fault level layer by layer from the top to the bottom; and forming a fault tree according to each level of fault corresponding to the top level of fault, and completing fault positioning.

Description

technical field [0001] The invention belongs to the field of airborne computer fault diagnosis and relates to an airborne computer fault location method. Background technique [0002] The airborne computer is an important part of the aircraft, and it is the core component to ensure the effectiveness of the aircraft and improve its combat effectiveness. With the continuous development of the design and manufacturing level, the airborne computer has made great progress in the direction of integration, miniaturization, and intelligence, making it smaller in size, lighter in weight, and more powerful in function. On the one hand, this provides more options for the flexible design of aircraft system-level solutions. On the other hand, the increase in the complexity of the onboard computer also makes its fault diagnosis and location more difficult. [0003] At present, the diagnosis and location of the outfield fault of the airborne computer is mainly through the aircraft's alarm...

AI Technical Summary

Problems solved by technology

[0004] Judging from the actual use in the field, the above methods still have deficiencies and defects, which are specifically manifested in: 1. The requirements for maintenance personnel are high, and generally only professionals who are very familiar with the product can perform fault location and diagnosis; In the method of automatic analysis and positioning of fault record data, maintenance personnel need to synthesize and reason according to the obtained scattered fault records, and even verify the record information of the flight reference recorder and the central maintenance system, and the efficiency of field maintenance is low; 3. Airborne The process of determining the content of computer fault records lacks the support of a systematic method and often relies on the personal experience of the designer, resulting in incomplete fault records for some onboard computers and chaotic fault transfer relationships. It is useful for field troubleshooting, especially for field faults that cannot be reproduced stably. Examination has brought great difficulties

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