Research on Land Change Survey System on Palm
Xiao Ming Han · Geo-information Science · 2006
Land resources are essential to human survival. To ascertain the actual situation of land resources and information of land change serves as a basis for overall planning of land use and macroscopic decision making on land resources. In order to raise the efficiency of land change survey, this paper designs a Land Change Survey System on Palm (LCSSP). Based on PDA, this system integrates GPS card, GSM and digital camera, which adopts real time differential process to improve positioning precision. Thus LCSSP becomes a pocket field land change survey system with high precision. Under Windows CE environment, functions of the system, such as land change survey, GPS data process, vector data edit and so on, are developed by using eVC (embedded visual c++ ) program language. LCSSP fundamentally solves some inherent problems including long cycle, low efficiency, and low precision in land change survey.