The Study On Locating And Tracking System Of The Mine Personal Based On ZigBee Technology

The nature condition of underground coal mine is complicated that potential security risk exit. Recently in our country, coal mine accidents occurred frequently; resulting in heavy casualties and economic losses, the existing coal mine safety monitoring system has been unable to meet the needs of coal mine safety production. Wireless sensor networks(WSN)is the set of wireless communications, data collection and information processing functions of the new type of self-organization of distributed data acquisition networks, ZigBee technology is a most representative of the emerging wireless sensor networks, with a unified technical standards and low-cost, Low-power characteristics, and so on. Applying ZigBee technology to coal mine safety monitoring, will effectively increase the production of mine safety supervision and management.The article study on the ZigBee network technology deeply, compares the characteristics of the ZigBee positioning and the current mainstream RFID location obtains the advantages of location using ZigBee technology. Based on this analysis of the characteristics of underground personnel positioning algorithm and application of the field, through the algorithm, combined with the actual coal mine environment, and positioning requirements, select the RSSI-based positioning technology as the system relies on. ZigBee wireless network systems with a combination of optical Ethernet as a whole program, down hole using ZigBee wireless networks face some of the staff to achieve the exact position of mine, Inoue, and some vertical wells using optical Ethernet communications, This program achieved the ZigBee wireless devices and Ethernet connectivity requirements. The article describes the function of the system equipment division, and a detailed study of the system hardware architecture, including the positioning sub-stations, reference node, blind node and the ZigBee wireless modules and optical Ethernet converter options. TI provided the Z-Stack protocol stack software development as a system-based. A detailed study of the ZigBee network equipment workflow, given various types of nodes in communication is implemented. Finally, in the development of a series of nodes to build a system based on the experimental model, the Z-location positioning system monitoring software test demonstration, through the experiments show that ZigBee technology will be applied to the coal mine personnel positioning system, can achieve precise positioning personnel requirements, to meet the practical needs of industrial and mining enterprises, with a high practical value.