基于航天器故障树的过程性诊断方法研究

针对航天器故障过程性推理的实际需求,提出采用故障树的节点式知识表示方法和过程推理机制处理航天器过程性知识和陈述性知识,同时为实现对航天器故障的诱因定位和早期预测功能,设计了故障树双向混合推理算法。

Study of Procedural Fault Diagnosis Method Based on Spacecraft Fault Tree

Based on the need of procedural reasoning in spacecraft fault diagnosis,this paper introduces node knowledge representation method and process fault diagnosis mechanism of fault tree to handle both declarative knowledge and procedural knowledge.Improved bidirectional and mixed inference algorithm of fault tree is also designed to locate the fault source and to forecast early stage of spacecraft fault.