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分析了虚拟柔性加工单元信息管理系统的需求 ,设计了虚拟单元信息管理系统的功能结构 .根据系统开发使用的关系数据库管理系统 ,建立了柔性加工单元扩展实体 -联系数据库模型和关系数据库 .
The demand of virtual flexible processing unit information management system was analyzed and the functional structure of virtual unit information management system was designed.According to the relational database management system developed by the system, a flexible processing unit extended entity-relational database model and relational database were established.