基于故障树的汽车故障诊断专家系统的设计样本.doc

摘要本文简介了汽车故障诊断专系统基本构造及其开发基本办法，阐述了汽车故障诊断专家系统软件开发研究意义和设计中难点，针对汽车故障复杂性特点模仿经验丰富维修专家诊断思路及办法，运用Delphi7进行编程，建立和谐人机界面，根据计算机数据构造原理，采用故障树数据构造和关系数据库原理完毕知识表达建立完善知识库，实现了拟定性故障诊断所需知识库和推理机。从而可使顾客通过人机对话形式以便、迅速、精确地找出故障因素，大大地提高汽修行业效益及汽车使用寿命。核心字：汽车故障诊断专家系统AbstractThepaperintroducesAutomobileFaultDiagnosisExpertSystemofbasicstructureanddevelopmentofbasicmethods.DiscussesthesoftwareofAutomobileFaultDiagnosisExpertSystem'sresearchmeaningandthedifficultyinthedesign.Aimingatthecomplexitycharacteristicofthefault,simulatingthewaythatexperienceddiagnosismaintenanceofexpertthinking，usingDelphi7，establishedfriendlyhuman-machineinterface.Accordingtotheprinciplestructuredataofthecomputer，adoptthefaulttree'sdatastructureandrelationtheoriesofdatabasetoaccomplishtherepresentationofknowledge，andrealizedtheuncertaintyofknowledgebaseforfaultdiagnosisandreasoningmachine.Theusercouldfindfaultconvenient，fastandaccuratelythroughtheman-machinedialogueform，greatlyimprovetheautomobileindustry'sefficiencyandtheautomobile'sservicelife.Keywords：automobilefaultdiagnosisexpertsystem目录TOC\h\z\t"标题1,2,标题2,3,标题3,4,标题,1"HYPERLINK\l"_Toc"1绪论PAGEREF_Toc\h-1-HYPERLINK\l"_Toc"1.1汽车故障诊断技术发展趋势PAGEREF_Toc\h-1-HYPERLINK\l"_Toc"1.1.1国外发展概况PAGEREF_Toc\h-1-HYPERLINK\l"_Toc"1.1.2国内发展概况PAGEREF_Toc\h-1-HYPERLINK\l"_Toc"1.1.3汽车故障诊断技术发展趋势PAGEREF_Toc\h-2-HYPERLINK\l"_Toc"1.2汽车故障诊断专家系统简介PAGEREF_Toc\h-3-HYPERLINK\l"_Toc"1.2.1汽车诊断专家系统功能与特点PAGEREF_Toc\h-3-HYPERLINK\l"_Toc"1.2.2研究汽车诊断专家系统意义PAGEREF_Toc\h-4-HYPERLINK\l"_Toc"2.delphi7.0软件简介PAGEREF_Toc\h-5-HYPERLINK\l"_Toc"3.汽车系统故障分析PAGEREF_Toc\h-8-HYPERLINK\l"_Toc"3.1汽车故障产生PAGEREF_Toc\h-8-HYPERLINK\l"_Toc"3.2汽车故障特点PAGEREF_Toc\h-9-HYPERLINK\l"_Toc"3.3本章小结PAGEREF_Toc\h-9-HYPERLINK\l"_Toc"4.汽车故障诊断专家系统设计与开发PAGEREF_Toc\h-10-HYPERLINK\l"_Toc"4.1汽车故障诊断专家系统普通构造PAGEREF_Toc\h-10-HYPERLINK\l"_Toc"4.2基于Delphi汽车故障诊断专家系统特点PAGEREF_Toc\h-10-HYPERLINK\l"_Toc"4.3故障诊断专家系统各模块建立PAGEREF_Toc\h-11-HYPERLINK\l"_Toc"