Results 1 to 10 of about 847 (209)
A Wireless Sensor Network Based Personnel Positioning Scheme in Coal Mines with Blind Areas
Sensors, 2010 This paper proposes a novel personnel positioning scheme for a tunnel network with blind areas, which compared with most existing schemes offers both low-cost and high-precision.
Shaobo Geng +5 more
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IEEE Access, 2019 It is important that precise positioning and navigation of underground personnel for intelligent hedging and mine rescue in mine accidents or disasters.
Jinhua Wang +4 more
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A review of positioning technologies for personnel and equipment in underground mines
International Journal of Digital EarthAs the global emphasis on mineral resource extraction gradually shifts to deeper underground locations, accurately positioning underground personnel and equipment is crucial for the sustainable development of mining operations.
Hu Liu +7 more
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Gong-kuang zidonghua, 2022 The traditional pedestrian dead reckoning (PDR) algorithm has low positioning precision due to the accumulated errors of step size and heading, which can not meet the requirements of precise positioning of underground personnel.
GUO Qianqian +4 more
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Research on improved PDR algorithm for underground personnel positioning
Gong-kuang zidonghua, 2021 As the traditional pedestrian dead reckoning (PDR) algorithm being used for underground personnel positioning, the positioning error gradually increases due to the cumulative error of the step frequency detection, step length estimation and heading ...
SUN Yanxin +3 more
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Gong-kuang zidonghua, 2023 When the underground personnel positioning system's firmware is upgraded using the wireless in-application programming (IAP) mode, the mark card can not be used normally, the upgrade efficiency is low and the security is not high.
ZHANG Lifeng, BAO Jianjun, JIN Yeyong
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Management System for Precise Location Map of Underground Personnel Based on 3D GIS
Meikuang Anquan, 2020 Aiming at the problems that the spatial performance of underground tunnels in two-dimensional GIS simulation maps of coal mine underground positioning systems is not intuitive and the location of personnel is inaccurate, based on the monitoring data of ...
HONG Yuling
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Three-dimensional personnel safety positioning based on improved UKF under complex coal mine environment [PDF]
E3S Web of Conferences, 2021 Aiming at the problems of strong interference and poor positioning accuracy in coal mines, this paper proposes a positioning algorithm for accurate detection of personnel safety.
Xu Hongxiang +3 more
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Underground personnel positioning system based on ultra wideband technology
Gong-kuang zidonghua, 2014 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 ...
LIU Shulun, WANG Shuse
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Research on wearable devices for safety of underground mine personnel
Gong-kuang zidonghua, 2018 In view of problems of low positioning accuracy of underground personnel positioning system and incomplete functions of underground personnel vital signs monitoring system, a wearable device with functions of personnel positioning, falling or lying ...
MA Yujing +4 more
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