Underground personnel positioning system based on ultra wideband technology
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摘要: 针对目前常用的井下人员定位技术存在传输距离短、抗多径效应差、定位精度低等问题，采用基于到达时间差的超宽带定位技术，提出了一种井下人员定位系统。该系统通过多个定位传感器发送测距信号，井下人员携带的目标节点接收信号并进行处理后回传给定位传感器，主定位传感器通过WiFi网络接收定位传感器发送的测距信息，并通过有线以太网发送至定位服务器来实现井下人员实时定位，有效提高了井下人员定位精度。Abstract: In view of problems of short transmission distance, poor anti-multipath effect and low positioning accuracy existed in current underground personnel positioning technologies, an underground personnel positioning system was proposed by use of ultra wideband positioning technology based on time difference of arrival. The system sends ranging signal through multiple positioning sensors, target node carried by underground personnel receives the signal and returns it back to the positioning sensors after processing, then main positioning sensor receives ranging information sent by the positioning sensors through WiFi network and uploads it to positioning server through wired Ethernet, so as to realize real-time positioning of underground personnel, which effectively improves accuracy of underground personnel positioning.
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Keywords:
- personnel positioning /
- ultra wideband /
- UWB /
- time difference of arrival /
- TDOA
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