On Some Issues Of Web Digital Mine System

Construction of web digital mine system is a complex system engineering. It’s difficult to share the multi-source,multi-pattern,isomerism and heterogeneous data and there are many problems should be studied in thesystem construction. Service-oriented architecture (SOA) provides a way to achieve a better sharing of mine spatial data and help to integrate different systems.The paper mainlyanalyzed the mine spatial data,researched borehole interpolation and some methods for buildingmodels,analyzed and studied the sharing of mine spatial data, then it studied the collaborative working and stereo display of3D models under the internet environment preliminary. In general, the following problems are studied:1) Framework of web-based digital mine system:This thesis studied the basic architecture of web-based digital mine system,which included SOA reference architecture, the basic characteristics of SOA, and it analyzed the main technology web services.2) Analysis ofmine spatial dataMine spatial data is a product of cognition and is used to describe the mine spatial objects.Also it is an emphasis to build digital mine system. This thesis mainly analyzed mine spatial objects and the style, the sources and the characteristics of mine spatial data.3)Interpolation of borehole dataBorehole data is sparse, uneven distributed.In order to build better three-dimensional models, this paper uses the method of support vector machine for regression(SVR) to drilling data, and uses the multi-population genetic algorithm to optimize the parameters of SVR.4) Model building ofmine spatial objects It is an emphasis to build models of mine spatial objects.The topic mainly studied the methods to build tunnel models,building models and improved the hexahedral mesh algorithm.5) Sharing ofmine spatial dataThe thesis analyzed the source andcharacteristics of mine spatial data, the feathers and modes of Geography Markup Language (GML); It analyzed the sharing model based on XML/GML for mine spatial data; It described triangles and boreholes in GML and studied some key technologies in the sharing progress.6) Web-basedcollaborative working and stereo display of3D modelsThis paper mainly studied the methods to realize3D geoscience models under the internet environment, the technologies to enhance the reality effect of the3D models;It studied the web-based synchronized and asynchronized collaborative mode;It modified the hexahedron tessellation algorithm for GTP model;It studied the active desktop stereo display system,the passive stereo projection systemand it analyzed the effect of the systems.7) Prototype and experimentsThis paper designed a prototype of web-based digital mine system in which some modules were developed such as spatial data sharing, attribute inquirystereo display of the geologic body and so on;Based on some data of a Mine Corporation,experiments for stereo display of3D models were preminarily done.