基于实体数据模型的棉纺工艺知识表示  

Cotton textile process knowledge representation based on entity data model

作　　者：李华[1] 杨建国[1] 项前[1] 吕志军[1] 

机构地区：[1]东华大学机械工程学院,上海201620

出　　处：《天津工业大学学报》2010年第3期29-33,共5页Journal of Tiangong University

基　　金：国家科技支撑计划项目基金资助(2006BAF01A44);上海市重点学科建设基金资助(B602)

摘　　要：为解决棉纺行业产品工艺设计对知识的快速响应问题,在研究和分析现有多种知识表达方法及其优缺点的基础上,提出了利于程序实现的基于实体数据模型的关系数据库知识建模方法,分析了数据实体间的概念属性、关联和约束,完成了由关系模型向实体数据模型的转换.最后,将该知识建模方法应用于棉纺行业产品工艺设计中,并通过原型系统的实现验证了该方法的可行性和有效性,辅助工艺人员缩短了产品工艺设计周期,利于同行业产品工艺设计知识的共享和重用,提高了知识的可维护性和可扩展性.To resolve the knowledge rapid response of cotton process design,the advantages and disadvantages of various existing knowledge representation methods are studied and analyzed,a relational database modeling which benefits program implementation based on entity data mode（lEDM）is proposed,the attributes,associations and constraints of entities are analysed,the conversion from the relational model to the entity data model is completed.Finally,the knowledge modeling method is applied to the product process design of cotton spinning industry,the feasibility and effectiveness is verified by the realization of prototype systems,which assisted process designers to shorten the product process design cycle.Furthermore,it′s much better for designers to share and reuse product process design knowledge,extensibility and maintainability of knowledge is improved.

关 键 词：知识表达 关系数据模型 实体数据模型 棉纺工艺 

分 类 号：TP315[自动化与计算机技术—计算机软件与理论] TS105[自动化与计算机技术—计算机科学与技术]