Aiming at current coal mine accidents

to realize safety management of coal mine

an underground wireless positioning and intelligent monitoring system which based on radio frequency identification（RFID）technology

gas sensor and Zig Bee wireless communication technology is designed.This system uses wireless sensor networks（WSNs） technology

wireless communication technology

combines control center database

realizes real-time tracking and positioning of miner

gas concentration real-time monitoring and alarming

personnel SOS

alarming when entering danger zone and control center issues emergency evacuation signal and other functions

which greatly strengthen security of miners and real-time management of coal mine.