Study on the Framework of Vehicle Automatic Navigation System

As one of the important research aspect of Intelligent Transportation System (ITS), the technique of vehicle automatic navigation has shown great prospect for application. ms paper discusses the framework of the vehicle automatic navigation system, which could be divided into four subsystems: the database management subsystem for the road networks, the vehicle positioning subsystem, the route planning subsystem and the route guidance subsystem. The functions of each subsystem and the key techniques for realizing these functions are proposed.