Abstract
This paper aims to accurately locate underground personnel in coal mines. For this purpose, an underground personnel positioning platform was established on the wireless sensor network (WSN). Specifically, the ultra-wide band (UWB) and the time difference of arrival (TDOA) positioning algorithm were introduced briefly, in view of the underground operation environment. Then, the underground operator monitoring platform was developed based on UWB-WSN and compared it with different positioning techniques through experiments. The results show that the proposed platform achieved a high positioning accuracy and satisfied the needs of real-time monitoring of underground personnel. The research findings shed new light on the mitigation of personnel and property losses in coal mine accidents.
Highlights
The exploitation of mineral resources mostly takes place deep underground
The precise positioning of operators is essential to the work safety of underground exploitation of mineral resources [3]
Much research has been done on underground personnel positioning
Summary
The exploitation of mineral resources mostly takes place deep underground. The operators often face the risks of exposure to harmful gases (e.g. CH4 and CO), high temperature, tunnel collapse, etc. [1, 2] Once an accident occurs, it is difficult for rescuers to identify the exact location and actual condition of the trapped operators. The precise positioning of operators is essential to the work safety of underground exploitation of mineral resources [3]. Much research has been done on underground personnel positioning. Derby (1991), a South African company, developed an automated vehicle positioning system based on infrared communication [4]. The Mount Isa Mineral Company of iJOE ‒ Vol 14, No 10, 2018
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