关键词: 航天器, MAS, 诊断系统模型, 分层诊断, HLA

Abstract: To realize realtime and intelligence in fault diagnosis system, a MultiAgent System (MAS) based fault diagnosis system model of spacecraft was proposed. The framework of the model realizes systemlevel diagnosis by hierarchical strategy, reduces computer space, and accelerates the isolation of fault source. The diagnosis Agent may construct its own diagnosis model according to the features of the domain knowledge of the subsystem, and can autonomously deal with emergency fault. MultiAgents can accomplish mission coordinately, thus the diagnosis efficiency is improved due to concurrent work. Furthermore, a HighLevel Architecture (HLA) based fault diagnosis system simulation platform is constructed. Simulation results show the superiority of the proposed fault diagnosis system model and validate the simulation platform.

Key words: spacecraft, MAS, diagnosis system model, hierarchical diagnosis, HLA