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防空导弹飞行试验集成故障诊断专家系统


  摘 要:为了对防空导弹飞行试验中的故障进行有效诊断,在分析现有基于知识、案例、模型、集成神经网络等推理的特点和局限性的基础上,探究了几种集成诊断推理的可能实现方法,再根据防空导弹故障模式特点,提出了一种集规则、案例、结构/功能模型和集成人工神经网络等诊断方法于一体的集成智能诊断专家系统。给出并研究了基于多深度知识、多层次推理的防空导弹诊断系统结构;研究了诊断系统的知识模型及问题求解策略。

  关键词:防空导弹;专家系统;故障诊断;案例推理;规则推理;结构/功能模型;神经网络

  中图分类号:TJ760.62文献标志码:A

  文章编号:1001-3695(2010)07-2551-05

  doi:10.3969/j.issn.1001-3695.2010.07.042

  Air defense missile fault diagnosis expert system based on integrated reasoning

  ZHU Xiang-ming1, ZHOU Feng-qi1, WANG Ji-hong2

  (1.College of Astronautics, Northwestern Polytechnical University, Xi’an 710072, China;2.PLA Unit 95948, Jiuquan Gansu 732750, China)

  Abstract:In order to diagnose air defense missile’s (ADM) failure during flight test (FT) well and truly in good time,this paperpresented ADM FT fault diagnosis expert system (FDES) based on integrated reasoning.First,discussed the characters and limits of modern intelligent diagnosis reasoning such as rule-based reasoning (RBR),case-based reasoning (CBR), model-based diagnostic method (MBDM) and integrated artificial neural network diagnosis (IANND).Second, to overcome their limits,probed into several possible reasoning integration method of aforementioned reasoning.Then,presented an integrated intelligent FDES combined with RBR, CBR, MBDM and IANND according to character of ADM’s failure mode.Finally,presented the structure of ADM FDES based on multi deep-level knowledge and multi hierarchy reasoning, and knowledge mode and problem solution strategies of the system too.

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