Fault diagnosis method and device

A technology of fault diagnosis and fault diagnosis model, applied in the field of spacecraft, can solve problems such as low fault diagnosis efficiency of solid-state equipment, and achieve the effect of improving fault diagnosis efficiency

Pending Publication Date: 2021-04-23
BEIJING AEROSPACE MEASUREMENT & CONTROL TECH
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Problems solved by technology

[0005] In order to solve the technical problem of low efficiency of fault diagnosis of fixed storage equipment, this application provides a fault diagnosis method and device

Method used

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  • Fault diagnosis method and device

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Embodiment Construction

[0099] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, but not all of them. Based on the embodiments in the present application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present application.

[0100] figure 1 It is a flowchart of a fault diagnosis method provided by the embodiment of the present invention, which can be used for fault diagnosis of the fixed equipment in the spacecraft, such as figure 1 As shown, the method may include the following steps:

[0101] S11. Obtain the on-orbit telemetry data of the fixed equipmen...

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Abstract

The embodiment of the invention provides a fault diagnosis method and device, and the method comprises the steps: obtaining the on-orbit telemetry data of fixed equipment, inputting the on-orbit telemetry data into a pre-trained fault diagnosis model, and carrying out the dimension reduction of the on-orbit telemetry data through a dimension reduction matrix in the fault diagnosis model, and outputting a classification result of the on-orbit telemetry data after dimension reduction through a classification model in the fault diagnosis model, and further determining the fault type of the fixed placement equipment according to the classification result. According to the scheme, automatic fault diagnosis of the fixed equipment based on the online telemetry data can be realized, and compared with manual fault diagnosis, the fault diagnosis efficiency is improved.

Description

technical field [0001] The present application relates to the field of spacecraft, in particular to a fault diagnosis method and device. Background technique [0002] The solid-state power amplifier (i.e., the solid-state power amplifier) ​​is the core equipment of the spacecraft payload subsystem and belongs to the key equipment in the satellite navigation subsystem. average value. Due to the advantages of high operating frequency band, large output power, and high efficiency, fixed-release equipment is widely used in the measurement and control process of spacecraft. [0003] Due to factors such as internal overvoltage protection and amplifier overcurrent, fixed storage equipment often shuts down abnormally during in-orbit operation, thereby affecting the use of satellites. [0004] At present, due to the influence of space usage and cost factors on the fixed equipment in the spacecraft system, usually only four indicators of working current, working temperature and powe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/62G05B23/02
CPCG05B23/0243G06F18/2135G06F18/214
Inventor 罗凯孙健张乐飞房红征樊焕贞李蕊王晓栋杨浩王信峰刘勇胡伟钢
Owner BEIJING AEROSPACE MEASUREMENT & CONTROL TECH
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