Design and Implementation of Reduced GIS Data Format and Basic System based on Mobile Environments

摘要

Mobile computing environments have serious limitations such as small capacity of memory in spite of many advantages. To overcome these limitations of mobile environments, we propose a very reduced GIS(Geographic Information Service) data format for NGI(National Geography Institute) digital map of Korea, and we implement digital map guidance system which can be usable in PDA environments based on the proposed GIS data format. The implemented system is a client-oriented GIS browser that can execute most of functions in client environments and excludes receipt of digital map of another regions and information exchange such traffic information between server and clients. We suggest message format for information exchange in network module, and also include GPS procedure functions for coordinate conversion.