Metadata based construction of data space for steel rolling process
With the rapid development of manufacturing industry,more and more data management problems are gradually exposed,such as difficulties in data aggregation,lack of unified representation of data,and difficulty in data integration,which reduce data utilization and make it difficult for enter-prises to analyze data effectively.Aiming at the above problems,a data space platform for the whole life cycle of steel rolling process is designed.A six-dimensional data model is proposed to describe the metadata of steel rolling process,the data entity association network model is completed by con-structing the metadata model of steel rolling process,and the tasks of transformation,storage,manage-ment,query and analysis of multi-source heterogeneous data are realized.The class of rolling process metadata is determined by data analysis of the obtained hot strip rolling process data,and a six-di-mensional data model is proposed on the basis of data unified modeling technology,and a rolling process metadata structure model is constructed according to the relationship among class and data.According to the data relationship and related attributes,an ontology model is constructed to complete the data entity association network model;tracking the information of data flow,data storage,data pro-cessing and display based on metadata through data consanguinity analysis,and realizing data tracea-bility and data query.Finally,a knowledge graph of data relations and attributes for rolling process is constructed,which is convenient for users to query the association relationships of various entities in the data space more intuitively and conveniently,manage various metadata in the database,and com-plete the construction of the rolling process data space.
metamodelmetadata managementdata spacedata consanguinityrolling process
万方数据
维普
