Technology Study And System Development Of “Digital Coalfield” Faced To Coal Geological Prospecting

Based on the computer technology,multi-media technology and database technology,“Digital Coalfield” realizes acquisition,input,storage,retrieval,query and spatial analysis of multi-source coal resources information,by using by using network technique,3S technique and virtual reality technique.Through related functional modular and analytical modelling,the comprehensive analysis,management,processing and application are conducted on coal information,so as to realize administration and decision support of coal industry development and related geological and environmental problems.The main study content of the “Digital Coalfield” is as follows:(1)Study the database of “Digital Coalfield”,realizing layered-policy management,multi-demission modelling and information standardization.(2)Study and build the system framework of “Digital Coalfield”.(3)Overall planning database,realizing share resources,and developing the concerned functional modular.The paper discussed the related theories and techniques of “Digital Coalfield”,designed and developed its system structure and functions,and achieved the following innovation:(1)Descriptions of geological bodies with complicated geological structures and elaborate constructions of 3D modeling;(2)Perfection of modeling functions of human-computer interaction.(3)Automatic mapping technology and shifting and calibrating of 2D and 3D spaces.