The Study Of Embedded GIS For The Optimal Path Choice Of City Transport

The problem of city transport has been the restrainability which restricts the development of city, and it must be solved. These devices on embedded GIS are characterized with small volume, light weight and easy to take. It will make a great progress of improving the city transport by using these devices.The thesis mainly makes a research on an optimal path choice of city transport, and the application based on embedded GIS. Firstly, the thesis analyzes academic actuality interiorly and overseas, the development and application of embedded GIS. Secondly, the thesis retraces embedded system's history and present situations, system and structure as well as features and exploitation technologies. It explains the key technologies adopted in the system which are the foundation of the system design and its realization.The thesis does such following work mainly.1. To the characteristic of embedded GIS, the thesis probes into the data organize and model, and the space data structure of index based on embedded GIS.2. The thesis studies an optimal path choice of city transport based on fuzzy theory. The method is to get the all-around weight of all paths with fuzzy theory, and get the optimal path with the algorithm of Dijkstra.3. Study and accomplish the input of the GIS data and the map-matching based on GPS.4. Design and accomplish the system integration between embedded GIS and GPS based on the research of the key technology on locomotive orientation which is based on WinCE.Finally, the functional module has been achieved by using UP-NETARM 2410-S and development tools on WinCE, and achieved the expected effect.