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Published in:
2021 | OriginalPaper | Chapter
Design and Implementation of Health Management for Modular Spacecraft Avionics System
Authors : Pei Nan, Zhang Yi
Published in: Signal and Information Processing, Networking and Computers
Publisher: Springer Singapore
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Abstract
The avionics system is an important part of the spacecraft, and its stable operation is related to the security of the spacecraft. The traditional design generally focuses on circuit and data, such as watch-dog circuit for the processor and error detection for storage date. Because there is no standard module, the unified and systematic management is impossible.
This paper proposes a design method of health management for modular avionics systems. The failure detection, health report and failure recovery of heal management for avionics system is based on multilevel functional nodes, tree topology and timing constraint. The functional nodes are defined to provide fault detection and recovery services between the different layers. The detection time is used to constrain the whole topology design.
The health management system is designed and implemented in an avionics system of remote sensing satellite, and tested by fault injection. The results from all testing have proved that the design of fault detection and recovery is complete and accurate. The fault-tolerant and self-recovery ability of the avionics system are improved.