Airborne computer fault rapid positioning method

An airborne computer and fault location technology, applied in the directions of calculation, generation of response errors, instruments, etc., can solve the problems of lack of airborne computer fault records, incomplete records of airborne computer faults, confusion of fault transmission relationships, etc. The effect of field maintenance efficiency, high degree of automation, and reduced professional quality requirements

Pending Publication Date: 2021-02-26
XIAN AVIATION COMPUTING TECH RES INST OF AVIATION IND CORP OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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 fli

Method used

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  • Airborne computer fault rapid positioning method
  • Airborne computer fault rapid positioning method
  • Airborne computer fault rapid positioning method

Examples

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Effect test

Embodiment 1

[0028] Below in conjunction with specific embodiment, the present invention will be further described, and a certain flap control computer is taken as an example to illustrate:

[0029] Design stage: According to the hardware configuration and software control strategy of the flap control computer, the fault levels are divided into underlying software and hardware faults, component-level faults, stand-alone-level faults, and system-level faults. The fault records include fault codes, fault time RTC time, and fault levels code. Define the fault content and fault transmission relationship from bottom to top, such as figure 1 As shown (note: the list of faults is only to illustrate the working principle of the present invention, and the list is not complete), all faults of the current level are transmitted to the faults of the next higher level until they are transmitted to the faults of the top level.

[0030] Running phase: When a fault occurs in the running phase of the flap ...

Embodiment 2

[0033] Such as image 3 As shown, this application provides a flowchart for troubleshooting, which specifically includes:

[0034] Step 101: Set the reference time t0 and the allowable time deviation t1, and obtain the top-level fault content in sequence;

[0035] Step 102: Judging the time of the fault, if the fault RTC time is between t0-t1 and t0+t1, the fault is included in the fault tree record, otherwise it is not included;

[0036] Step 103: Sequentially acquire fault content at the stand-alone level;

[0037] Step 104: Judging the fault time, if the fault RTC time is between t0-t1 and t0+t1, the fault is included in the fault tree record, otherwise it is not included.

[0038] Step 105: sequentially acquire component-level fault content;

[0039] Step 106: Judging the time of the fault, if the fault RTC time is between t0-t1 and t0+t1, the fault is included in the fault tree record, otherwise it is not included;

[0040] Step 107: Sequentially acquire bottom-level ...

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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...

Claims

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Application Information

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IPC IPC(8): G06F11/07G06F11/34
CPCG06F11/0739G06F11/3476
Inventor 郑久寿安书董徐奡李明李亚锋马倩
Owner XIAN AVIATION COMPUTING TECH RES INST OF AVIATION IND CORP OF CHINA
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