The Technology And Implement Of Mobile User Oriented Spatial Information Application System

With the development of spatial information management technology and the generalization of application in spatial information services, the demand of spatial information service for anybody, at any time and any place is becoming more and more stronger. At the meanwhile, the regeneration of wireless communication and wireless networking technology is more and more frequent, it seems as the bottleneck on wireless data transfer will be taken off in the near future. Mobile equipment is performing more powerful, the PDA gets the wireless communication capability and cell-phone is just like a PDA. Now it is possible to extend the application which runs at computer to mobile equipment. With the combinational driving of technology and economy demand, it could supply spatial information service for the mobile end user. Therefore developing this system is becoming practicable and meaningful.The thesis offers the key technology and research for building a spatial information service system for mobile users. It also introduces several possible solutions for the same question and the necessary system target, frame, features of design and hardware construction for the spatial information service system. Especially it attaches the most importance on the critical issues will be encountered in the system realization and its different solution plans. At last but not least, the article also states two realization models of system interface.