Design and Implementation of GPS/DR/GPRS Integrated Position and Monitoring System for Vehicle

The paper designs and implements positioning monitoring system for vehicle based on GPS/DR (Global Positioning System/dead reckoning) technology. It solves the deficiency that vehicle can not locate and monitor when GPS signal loses, and improves positioning accuracy. The system uses S3C2410A microprocessor as the core of the entire system modules. The designation of the whole system, hardware and software is given in this paper, and gives the way to solve time synchronization, alignment of the initial azimuth, calibration of installation error angle when the GPS/DR data fuses.