航电设备故障诊断专家系统研究与实现

Research and Implementation of Fault Diagnosis Expert System for Aerial Electronic Instruments

对航电设备和故障诊断专家系统研究的基础上,设计了“智能指引完备过程规则树”的知识表示方式和存储结构,实现了完整表达和记录专家排故经验的功能,给出了一种与规则树对应的诊断方法,通过计算机操作即可自动、真实地模拟专家的思想进行排故,该系统已成功应用于国家某重点项目中,实践表明该系统能提高故障诊断的定位准确度和定位速度,设计思想具有通用性,可应用于其他领域的故障诊断专家系统。

The ＂intelligent guide completeness process rule tree＂ is put forward for knowledge expressing mode and storage structure based on thorough research on aerial electronic instruments and fault diagnosis expert system. It implements the function of completely recording the experience of expert troubleshooting, and a method of diagnosis supporting rule-tree is designed. The method can simulate expert thought truly and automatically by operating computer. It has been applied in an important national project successfully. It is proved that the system can improve the accuracy and rapidity of detecting faults; meanwhile, the method is general for some system fault diagnosis in other fields.