基于知识网格的设备维护联盟知识共享模型

Knowledge sharing model for equipment maintenance federation based on knowledge grid

为了在业务驱动和权限约束下高效共享设备维护联盟中的知识,基于知识网格在整合知识资源方面的优势,提出了面向维护联盟的知识共享模型。该模型结合本体和维护知识空间对知识网格的知识资源进行集成,以业务过程为中心对知识进行管理。构建了维护知识概念本体来对维护任务、维护对象和维护功能的概念进行规范化描述;形式化定义了维护知识空间,并建立了基于Web服务本体描述语言的知识对象本体来实现维护知识空间的语义描述。把知识获取的需求和权限集成到以维护业务为中心的业务语境中,提出基于知识业务语境的知识共享控制方法;建立了业务驱动的知识获取方式,采用包括知识权限匹配和内容功能匹配的匹配方法支持其实现。以某e-维护联盟为应用背景,构建了知识共享原型系统。

To improve the efficiency of knowledge sharing under business-driven and access-constraint in equipment maintenance federation,based on advantage of the knowledge grid in knowledge resources integration,a knowledge sharing model oriented to maintenance federation was proposed.In this model,ontology and Maintenance Knowledge Space（MKS） were adopted to integrate knowledge resources in knowledge grid,and then knowledge sharing management was performed by using business-process-centered method.Maintenance knowledge concept ontology was established to formally describe concepts of maintenance task,maintenance object and maintenance function,and a formal definition of MKS was introduced.Then,knowledge object ontology based on Web Ontology Language for Services（OWL-S） was also set up for semantic description of MKS.By integrating requirements and access of knowledge acquisition with business-centered context,a knowledge sharing control method based on knowledge business context was proposed,a business-driven knowledge acquisition method was also proposed and knowledge access matching and knowledge content function matching were applied to support its realization.Taking an e-maintenance federation as application background,a prototype system for knowledge sharing was developed.