Direction recognition technology based on single base station applied to underground accurate personnel positioning
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摘要: 针对现有精确人员定位系统必须由2个基站才能完成方向识别功能，导致系统成本高和施工难度较大的问题，在精确人员定位系统中引入了一种由单个基站来实现方向识别的技术：由单个基站采用2个定向天线接收同一信号，根据2个天线接收到的信号强度差异来实现定位人员的方向识别。将该技术应用于井下工作人员所在位置的方向识别，能有效降低系统的成本和施工难度，加速推动精确人员定位系统在煤矿井下的普及。Abstract: In view of problem of high cost and big construction difficulty of existing accurate personnel positioning system which needs two base stations to complete direction recognition function, a kind of direction recognition technology based on single base station was introduced to the system. The single base station adopts two directional antennas to receive the same signal, and judges the direction of miners according to the difference of received signal strength from the two antennas. Applying the technology to direction recognition of underground staff can effectively reduce the cost and construction difficulty of the accurate personnel positioning system, and further help popularize the accurate personnel positioning system in more coal mines.
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