Research Of GPS Positioning Technology Based On Mobile Computer Platform

GPS technology already is widely used and various sectors at present,especially in surveying and mapping,GPS has become a data acquisition one important method,it replaced many of the traditional measuring method,and with its high precision, low cost and. gets more and more customers.Papers to the mining subsidence monitoring as the background,will the GPS positioning technology used for mining subsidence area of deformation monitoring data collection.As a mining subsidence data acquisition system,the system mainly fusion of embedded GIS, GPS,software engineering and other areas of the related theory and technology,design and development of a WinCE platform for handheld data collecting information system,and it play a good role in the mining subsidence data acquisition.GPS system by using real time difference positioning technologies,use a benchmark stand many sets of starting independent observation,And through the coordinate conversion module will be collected WGS84coordinate system for reference coordinate system of coordinate transformation of coordinates;through the system function of GIS, will coordinate data collection exhibition draw to work area for reproduction,and the management of the data collected;network communication module in a hand-held machine can use SIM card provide GPRS function,through the GPRS network access Internet network,to establish a connection with the data center;ln the data center can be directly through the cable connected to the Internet,make mobile end and data center data sharing.The system of the company is made of super figure eSuperMap embedded GIS development platform,in the Visual Studio2005the development environment complete software development, and in Microsoft Windows CE5.0the workbench good operation.Through the Anhui Panbei mine huainan city unobserved data collection,this system successfully completed for monitoring area observatory data collection and processing function,and will send back data to the server,and the solution of the sink, tilt, horizontal deformation, tilting the deformation, level and achievements of the move.