基于无线通信和嵌入式技术，设计一种煤矿井下人员定位系统。

Based on the Wireless Communication and Embedded technology, a coal mine personnel positioning system was designed.

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建立可靠实用的煤矿井下人员定位系统，对改善煤矿的安全生产管理有着重要的现实意义。

Establishing the safe and utility orientation system of the mine personnel in coal pit is of great significance for improving the safe production management of the coal pit.

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本文首先介绍了煤矿井下人员定位系统的组成和工作原理，并给出了国内现有煤矿井下人员定位系统采用的主流技术。

Firstly, this paper introduces the structure and working theory of the underground personnel positioning system, followed by the main technology used in the system in China.

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