Digital Map Making And Map Matching In Vehicle Location System

Vehicle location technique is the base of intelligent navigation technique such as vehicle navigation, vehicle scheduling and vehicle transport management. Only accurate and real-time vehicle location can provide an efficient vehicle management and vehicle scheduling. And Intelligent Navigation technique is the solution to the problems such as traffic jam, traffic accidents, and pollution. So, seek a accurate vehicle location method is very important and practical to improve traffic condition, reduce traffic accidents, reduce pollution.This paper did two jobs about Vehicle Location: developing digital map and designing a map matching algorithm.On the digital map developing part, we develop our digital map all by ourselves. The actual vehicle location system mostly use the digital map developed by professional map company. Use this way, the system has low efficiency, and developers do not have the copyright. Use the digital map developed by yourself can achieve seamless connection between the map and system. And the system will has a high efficiency, and require less map storage space.On the map matching part, we used a map matching algorithm based on fuzzy neural network. The actual map matching methods are either too simple, have low matching accuracy, or too complicated, have too much operation, lower the real time performance. Compared with normal algorithms, our method not only reduced the computation but also guarantee the matching accuracy.In this paper we will introduce the process of the developing of the digital map, and then introduce our map matching algorithm.