Method for realizing autonomous fault recovery after satellite is influenced by single particle

Abstract

The invention discloses a method for realizing autonomous fault recovery after a satellite is influenced by a single particle. The method comprises the following steps: designing fault recovery program control instruction content which needs to be autonomously executed on the satellite; determining the longitude and latitude range of the satellite on-orbit task influenced by the single particle; setting constraint conditions of program control instruction execution; and obtaining a program control instruction time sequence by utilizing the program control instruction content and the program control instruction execution constraint condition, and uploading the program control instruction time sequence to the satellite. Based on the longitude and latitude range influenced by the satellite on-orbit task single particle, the method can quickly realize autonomous fault recovery after the satellite is influenced by the single particle by combining the program control instruction content and the execution constraint condition, and effectively prevents the satellite on-orbit task from being influenced by the single particle.

Description

technical field [0001] The invention belongs to the field of satellite on-orbit maintenance, and relates to a method for realizing autonomous fault recovery after a satellite is affected by a single particle. Background technique [0002] When a satellite is flying in orbit, it will be affected by high-energy single-particle events in space, which will cause abnormalities such as shutdown, reset, and power failure of on-board products, which will affect the normal execution of satellite missions in orbit. After an abnormality occurs, satellite ground designers and operators need to analyze and locate the fault, and then take corresponding measures to restore the satellite status to normal, so as to continue to perform on-orbit tasks. [0003] However, the impact of a single event generally only occurs in an instant. Many on-orbit practical cases have shown that abnormal conditions such as machine shutdown, reset, and power failure of on-board products caused by a single even...

AI Technical Summary

Problems solved by technology

[0004] However, if the satellite failure recovery operation is performed by ground personnel, the satellite must be within the visible range of the ground monitoring and control station to perform the operation.

For satellites with low orbital altitudes, the time they are within the visible range of my country's ground measurement and control stations is generally less than 60 minutes a day, which greatly limits the rapid recovery ability for general routine failures in orbit

And limited by the operating constraints of the fault recovery measures, even if the satellite flies over the ground measurement and control station, there may be special circumstances where the recovery measures cannot be implemented, thus delaying the recovery of the satellite to normal status and affecting the execution of subsequent tasks

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