【作者】 王永宽；

【导师】 陈朝阳； 张代胜；

【作者基本信息】 合肥工业大学 ， 车辆工程， 2004， 硕士

【摘要】 知识库管理系统是汽车故障诊断专家系统的重要组成部分，故障诊断专家系统运行过程中所需要的知识都是由知识库来提供的，系统的推理、决策都是围绕着运用知识库管理系统中存储的知识进行匹配、决策、归纳、演算等操作，从而得到最终结果。因此，从某种意义上来说，知识库建造的好坏直接影响到整个汽车故障诊断专家系统是否成功，而构造高效、完善的知识库管理系统将会对整个汽车故障诊断专家系统性能的提高起到非常重要的作用。本文简要阐述了知识库以及知识库管理系统的基本知识，分析了汽车故障诊断领域知识的特点，提出了适合该领域的知识分类及知识表示方法。针对汽车故障诊断知识特点，利用SQL Server为工具创建汽车故障诊断知识库，并在此基础上以Borland Delphi 5.0为编程语言，以SOL Server为后台数据库开发了一种基于windows平台的知识库管理系统(Knowledgebase Management System简称KBMS)，该系统充分利用了数据库技术，实现了对知识库中知识的存储、增加、删除、修改和查询，以及对知识进行一致性和完整性校验。为汽车故障诊断专家系统的开发和运用提供了必要基础。更多还原

【Abstract】 Knowledgebase Management System (KBMS) is a very important part of vehicle fault diagnosis expert system, knowledge required by the expert system during it running is all provided by knowledgebase, reasoning and decision-Making of the expert system are all the result of applying the knowledge of KBMS to match , conclude and calculate. So, the quality of knowledgebase directly influences the whole vehicle fault diagnosis expert system, and that constructing high-efficient and consummated KBMS plays a very important role in improving the performance of the expert system . This paper briefly introduces basic theory of knowledgebase and knowledgebase management system, and analyses the characteristic of vehicle fault diagnosis, then puts forward the method of knowledge classify and express. According to the characteristic of knowledge of vehicle fault diagnosis, the paper use SQL Server to establish vehicle fault diagnosis knowledgebase, on this foundation it designs a knowledgebase management system, the system makes fully use of database technology to realize knowledge store, add, delete, modify and seek. Besides, it can also check the consistency and integrality of knowledge .In a word the KBMS establishes an important base of the whole vehicle fault diagnose expert system.更多还原