2 design and exploit a database as background support after considering the traits of the existing system in order to avoid the shortcomings such as maintenance difficulties , lacking of safety and etc . 3 design and exploit a number of modules of the distributed fault diagnosis and predictive maintenance system based on c / s structure 2 、充分考虑单机版系统现有特点之后，设计、开发了一个强大的数据库，采用数据库前后台管理，从而克服了文件管理带来的维护困难、安全性差、不易扩展、伸缩性差等缺点。 3 、设计、开发出基于c s结构的分布式故障诊断与预知维修系统的部分模块。
Discuss the feature , composing and realizing of corba standards and discuss the general structure of drfdes based on corba and its diagnosis interaction process . different fault object model can be unified expressed by uml and complete the mapping from different fault diagnosis object to omg idl . the encapsulating of fault module and the joining to distributed fault platform can be used by corba 论述了corba规范（标准）的组成、特点及其实现，并且阐述了基于corba技术的分布式远程故障诊断专家系统的一般框架及其诊断交互过程，把corba和uml技术相结合，利用uml将不同诊断对象模型用统一的形式表示，实现不同诊断对象到omgidl的映射；再利用corba构建分布式故障诊断系统，诊断模块经过封装并实现为诊断对象，诊断对象加入分布式平台。
It is a of consequence approach for intelligently processing information on oil monitoring and fault diagnosis to establish the distributed fault diagnosis expert system based on the integration of multiple techniques , which utilizing information fusion techniques to go along with monitoring and diagnosis , and using expert system for auxiliary means 因此，利用信息融合技术进行数据级、特征级和决策级层次上的监测和诊断，把专家系统用作信息融合的辅助工具，建立基于油液监测的多种技术集成的分布式故障诊断专家系统，则是实现机器油液监测故障诊断的智能信息处理的一条可行的重要途径。
Multi - agents can make use of distributed process technology and modular design thoughts , and devide the complicated system into several relatively independent subsystems , then solve the complicated diagnosis problem through the cooperation and competition of multi - agents , considering that aboundant fault diagnosis cases had been accumulated in daily maintenance work , the thesis researches how to combine the cbr and multi - agents technologies in the distributed fault diagnosis systems accordingly 多agent能够利用并行分布式处理技术和模块化设计思想,把复杂系统划分成相对独立的agent子系统,通过agent之间的合作与竞争来完成对复杂诊断问题的求解。同时考虑到某些故障诊断领域已积累了丰富的诊断案例,因此本文将基于案例推理( casebasedreasoning ,简称cbr )与多agent技术结合起来研究,并应用于分布式故障诊断系统。
Firstly , the paper introduced the survey of modern fault diagnosis systems and summaried the mechanisms of artificial intelligence in fault diagnosis systems , then , introduced case - based reasoning ( cbr ) , agent technology and the multi - agent system in brief , a distributed fault diagnosis system structure model was constructed based on the cbr and multi - agent technologies 首先,介绍了分布式故障诊断系统研究现状,概述了现代人工智能诊断方法原理,简要介绍了cbr方法、 agent技术以及多agent系统,并以此为基础建立了基于cbr与多agent的分布式故障诊断系统结构模型。
