关键词: 设备维护, 维护联盟, 知识网格, 知识共享, 本体, 知识获取

Abstract: 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.

Key words: equipment maintenance, maintenance federation, knowledge grid, knowledge sharing, ontology, knowledge acquitsition