This paper analyzes the basic principle,topology structure and free routing algorithm of ad hoc network and designs hardware box-based terminal,vehicle-based command terminal and RFID tag of conveying the wireless ad hoc network by fleet.

The Control System of an Embedded Vehicle Terminal;

Research of GPS vehicle terminal communication technology based on GPRS;

The Design and Realization of Embedded Vehicle Terminal Based on GPS/GPRS;

The vehicle navigation system was constituted by three parts:navigation and control center,vehicular terminal and GPRS communication network.

However, it is hard to collect the data from vehicular terminals on the shuttle buses efficiently, because the present acquisition method depends on manual labor, which is.

After building the model of public transport network,the road traffic situation and corresponding traveling time are speculated according to dynamic data collected by GPS vehicle terminals,and then the bus arrival time is predicted.