Abstract:

The article describes the composition and the principles of the Vibration fiber optic perimeter alarm system,And on this basis,a vibration cable perimeter alarm system based on GPRS technology is designed,which use the GPRS short message function to realize the function of wireless remote alarm.The design and applications of the GPRS module is described in detail.Different alarm modes are chosen according to the actual environment,and owing to its wireless transmission feature,the system is easy to implement.This alarm system has been successfully applied in the Guangzhou Asian Games underwater security project,receiving warm welcome of the customers for its high reliability and low miss probability and false-alarm rate.

Key words: vibration fiber optic cable;underwater-defend;arming