The Research For Unified System Of Fault Diagnosis System Knowledge Base Based On Meta-data

In order to solve the problem for the heterogeneity of knowledge base in RCFDS, response to new challenges for the development of modern Internet technology to the fault diagnosis, solve the inefficient for search and transfer in great and complex knowledge base, we propose the article for the establishment of unified fault diagnosis knowledge base system. The main contents are as follows:(1) According to characteristics of diagnosis knowledge and RCFDS, we research the knowledge representation methods by the Object-oriented and XML based on metadata, build the model of fault diagnosis knowledge metadata tree, and research the specific knowledge representation and realization of tree structure.(2) By analyzing the various data integration methods, the characteristics of diagnosis knowledge and the development of modern computer technology, we research the framework of heterogeneous metadata integration in the improved virtual method, and the mathematical model of integration of heterogeneous metadata.(3) On the basis of the unified knowledge representation and the unified knowledge integration, research the strategy of search and management for diagnosis knowledge by FDKM, research the methods and models of FDKM.Finally,we frame some application examples on the basis of our theories, models and methods.