Research Of The Key Technologies And Realization Of Coalmine 3D Visualization System

Coalmine three-dimensional visualization technology is a hot topic in China and abroad. The establishment of coalmine three-dimensional visualization system plays an important role in perfecting digital coalmine project, enhancing coalmine production management, improving production efficiency, accelerating information construction of coalmine and propagandizing enterprise culture.Firstly, the paper depicts the development history of Geographic Information System simply, analyses study situation of domestic and international coalmine three-dimensional visualization software and modeling methods, and summarizes existent problems and relevant countermeasure, which is taken as the basis of subject selection.Secondly, the paper analyses the merits and demerits of ARTP(Analogical Right Triangular Prism) model to geological modeling, then expands and modifies the model, presents the stratum and laneway three-dimensional visualization integration data model on the base of TIN and ARTP, designs the relevant concept and logic model, and describes the data structure of geometry factors of the model by adopting the object-oriented modeling idea.Thirdly, the paper researches on the key technique and algorithm of coalmine three-dimensional visualization system, puts forward to the modeling process of stratum, laneway, drill and mine industry square in detail, expatiates the advantages of stratum modeling using ARTP, and takes research on the three-dimensional geometry modeling process of different section laneways; and introduces some key techniques such as OpenGL, three-dimensional alternation technique, and data structure of color, light and material.Fourthly, according to the status of coalmine industries, the paper presents the whole framework of coalmine three-dimensional visualization system, and introduces design principles, developing environment, system structure, system function, interface design and data management in detail, and so on.At last, the paper realizes the three-dimensional visualization system professionally coalmine-oriented on the basis of VRMine, using SQL Server as background database, Visual C++ 6.0 and OpenGL as developing tools. And the system was implemented in Xinjing mine of Yangquan Coal Group and gained good effect.