Fault simulation system for spacecraft space environment

Abstract

The present invention provides a spacecraft space environment fault simulation system, comprising: a micro-control module (1), used to trigger a spacecraft CAN bus fault; a fault design module (2), electrically connected to the micro-control module (1), Send fault command information to the micro-control module (1); the data communication module (3) is used to communicate and connect the micro-control module (1) to the CAN bus of the spacecraft to generate a CAN bus fault of the spacecraft. According to the spacecraft space environment fault simulation system of the present invention, the data flow information of the spacecraft signal management subsystem is used as the data source to analyze the time slice information, obtain the current mission of the spacecraft, inject fault information in a timely manner, and check different tasks in the spacecraft. During the operation period, the influence of CAN bus communication network failure on the satellite, and then realize the stability and reliability of the network on the test spacecraft.

Description

technical field [0001] The invention relates to the technical field of spacecraft on-orbit state monitoring and fault diagnosis, in particular to a spacecraft space environment fault simulation system. Background technique [0002] The satellite CAN bus communication network is an important part of the satellite. It is the bridge for the mutual scheduling and cooperation of the satellite subsystems, the main channel for the information exchange of the satellite subsystems, and the satellite telemetry information collection. the only path. The normal and stable work of the on-board communication network is crucial to the safety of the satellite. However, due to the impact of the space environment such as single event effects, signal glitches, etc., the Can bus communication network often has various failure phenomena. For example, a certain model is locked by a single event on the Can bus, and the stand-alone device cannot normally receive instructions, resulting in task fai...

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Problems solved by technology

Large current will cause the local temperature of the device to rise, and the device will be permanently damaged

[0006] For the above fault types, there is currently no system that can accurately and effectively simulate the space environment faults of the spacecraft, so it is impossible to test the stability and reliability of the network on the spacecraft

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