Spacecraft space environment fault simulation system

Abstract

The invention provides a spacecraft space environment fault simulation system comprising a micro-control module (1) used for triggering a spacecraft CAN bus fault, a fault design module (2) electrically connected with the micro-control module (1) and for sending fault instruction information to the micro-control module (1), and a data communication module (3) used for connecting the micro-controlmodule (1) with a spacecraft CAN bus in a communication manner to generate a spacecraft CAN bus fault. According to the spacecraft space environment fault simulation system, the spacecraft informationmanagement subsystem data flow information is used as a data source, time slice information is analyzed, the current operation task of the spacecraft is obtained, the fault information is injected intime, and the influence situation of CAN bus communication network faults on a satellite during different task operation periods of the spacecraft is checked; and thus, the stability and reliabilityof the network on the spacecraft are tested.

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...

AI Technical Summary

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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