Special Vehicle Location And Navigation System Based On 3S

It's well known to all that Intelligent Transportation System (ITS) is provides the best solution for traffic accident, pollution and etc. Vehicle Location and navigation system is widely used and required application in ITS. It's integrated GIS, GPS and wireless communication. In this paper we develop a special vehicle location and navigation system based on GIS, GPS and RS is developed. The main research content and results are followed: (1) This thesis summarizes the developments of ITS and vehicle location and navigation system. Some applications of 3S technique in ITS is also introduced. (2) Vehicle location and navigation systems mainly include three sub systems: location system, geographical system and wireless communication. This thesis analysis the realization methods of each sub system and discuss the design of Vehicle location and navigation system.(3) The map method design for navigation is introduced. The function and acquirement of E-MAP, and the design and update technique of navigation database are also put forward in detail.(4) This thesis take 120 as a sample and realize a design of vehicle location and navigation system. Part of the function are programmed by VB and GIS component MapX.(5) This thesis analyzes the path plan algorithms for vehicle location and navigation system. Dijkstra algorithm is used to calculate the shortest path. At last some notable problems of optimum method and path plan in GIS environments are proposed.