Research on Heterogeneous Data Integration of Digitalized Mine

In order to solve the joint sharing and mutual visit to the heterogeneous data of the coal mine enterprises,according to the pre-sent status and the integration requirements of the heterogeneous data of the coal mine enterprises,based on the analysis on the data environment,a system integrated environment was established.Based on the integration plan of the middleware selected,a heterogeneous data integrated framework of the coal mine enterprise was established based on the XML.The paper provided the process of the heterogeneous data integration.Taking XML as a public data model and taking XML Schema as the model language to describe the data resources and XPath was adopted as the enquiry language for the whole bureau.With DOM/SAX interface to the operation of XML documents,the model integration was completed in combined with the Java technology.And the middleware integration of the heterogeneous data was established for coal enterprises.With systematic test and operation,the different structuralization,semi-structuralization and non-structuralization data of the coal enterprises could be jointly shared.The integration of the heterogeneous data had improved the data processing efficiency of the mine safety production and management.