The Research And Design Of Mobile Geographic Information System Based On PDA

With the development of embedded technology and wide application of wireless communication technology, Mobile GIS take mobile intelligent terminal as carrier has already become the focus of GIS research.Embedded GIS is a software solution collecting with navigation, localization, and map inquiry and space data management, applied extensively. Mobile GIS is the latest form of Embedded GIS. On the basis of Embedded GIS System, it integrates the advanced individualized computer technology PDA, mobile communication technology (GSM/CDMA) and GPS technology to expand the application of GIS system and improve the convenience and real-time of GIS information gathering and data processing. The advantage of Mobile GIS lies in that it can offer a kind of convenient, swift and reliable information inquiry and decision means to customers whenever and wherever possible.This research involves development of the embedded module, mobile communication, wireless Internet, GPS's positioning technology. The content that this paper studies includes the following several respects:Firstly,it explains the current research situation of embedded GIS theory and its application home and abroad, then introduces basic knowledge of GIS and GPS, embedded system, wireless communication technology, on this basis carrying on research and design to PDA type Mobile GIS.Secondly, this essay is concerned with main characteristic and...