故障诊断专家系统中的分布式数据库设计

针对故障诊断专家系统中数据类型繁多、复杂 ,且其数据库向大容量、通用化方向发展的状况 ,详细阐述了系统的数据来源、数据库的组成、数据库的功能和数据库的设计 ,采用分类、分级及分层处理的方法 ,利用PB和SQLServer等大型数据库语言平台 ,设计出 1套基于 3层结构的、适于一般故障诊断专家系统数据管理的、可独立于应用软件之外的分布式数据库系统。最后 ,以数据库系统的几种分布式运行模式和实例说明该系统具有很强的实用性、通用性、分布性、扩展性和灵活性。

In view of the variety and complexity of data types,and the trend of great capacity and generalization of database in fault diagnosis expert system,the distributed database fault diagnosis expert system is designed which manage the data by using the method of classification,hierarchy and layer,and the language of PB and SQL Server.What's more,the data source,composition,function and design of its database is discussed in detail.Finally,several distributed database operation modes and an actual example are given to show that the system designed in this paper has powerful practicability,generalization,distribution and flexibility.