A Geo-Information Data Transmission Method in Socket-Based Mobile Device

This paper studies on a client / server wireless network model of hand-held mobile devices for land surveying and mapping industry, and accesses the credibility and methods of data communication between different programs through multi-threaded and socket. Key issues and technologies are discussed through practice, that wireless internet facilitate GIS data transfer, and multi-threaded applications and WINSOCK promote the communication between application programs, respectively, the client and server programming.