Research of Wireless Sensor Networks based on ZigBee for miner position

With the rapid development of computer communication and web technology, especially the widely application of wireless sensor and embedded technology, Wireless Sensor Networks (WSNs) have been paid great attention in industry field and our daily life. WSNs based on ARM7TDMI-S CPU and ZigBee device has merit of rapid and simple in networking, node movable in application, abundant information in acquisition, real time collaboration in communication, low power consumption in continuous operation, so it is very suitable for targeting miner´s position underground. In this paper, networking scheme of the WSN is presented, and distributed information processing, communication technology and real time collaboration are focused on. Miner´s information in mobile is obtained accurately by sensor. After that position information is transmitted reliably to monitoring center. Test result in continuous operation shows there is no information loss or undetected. Therefore this scheme is stable and effective, which will play a positive role for security in coal mine by right of characteristics of Zigbee WSNs in my opinion.