Aimed at the disadvantages of the traditional GPS such as position blind spots ect
a combination position system based on SOC is designed.A real-time and continuous position system is realized through the way of combination of GPS and the digital compass localization.Meanwhile
the real-time communication between the position teminal and monitoring center is implemented through the GPRS in Internet form.The experimental results indicate the position blind spots are removed in this method
which can satisfy the requirment of real-time position.