Abstract
ZigBee technology is a kind of self organization of short distance, strong anti-interference, low cost, emerging wireless sensor network application that has attracted wide attention. Therefore, this paper studies and designs a real-time positioning system of underground personnel based on ZigBee system, the positioning of the sensor carrying miners through the wireless sensor network. This will help to achieve the attendance management of underground personnel, the real-time location of underground personnel, and effectively improve the monitoring level and efficiency of disaster relief as coal mine safety product to guarantee the life safety of the employees. According to the actual environment, the localization algorithms of popular wireless sensor networks were fully investigated, through the comprehensive demonstration, selection of wireless location algorithm based on RSSI, and deducing the mathematical model of the signal transmission attenuation.
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