Results 21 to 30 of about 29,942 (304)
Status and development trend of mine positioning technology
Gong-kuang zidonghua, 2018 Common mine positioning technologies were analyzed from aspects of positioning methods and wireless communication technologies, and application of the mine positioning technologies in personnel positioning system and equipment proximity detection were ...
HUO Zhenlong
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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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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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Underground personnel and equipment location system based on iBeacon technology
Gong-kuang zidonghua, 2016 In order to solve the positioning problem of underground personnel and equipment, positioning principles and algorithms of iBeacon indoor positioning technology were deeply analyzed, and a design scheme of underground personnel and equipment location ...
ZHANG Hang, SUN Xiaoyu, TIAN Fengliang
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Socio Behavioural Profile of HIV Positive DSC Personnel [PDF]
Medical Journal Armed Forces India, 2006 Few human immunodeficiency virus (HIV) positive Defence Security Corps (DSC) personnel reported for surveillance at one of the Air Force (AF) stations in 1992 and it was appropriate to study socio-behavioural profile of HIV positive DSC personnel to determine the reason for their vulnerability.The study was conducted among 46 HIV positive DSC personnel
J, Mukhopadhya, S C, Kabra
openaire +2 more sources
Gong-kuang zidonghua, 2018 Due to affects of clock synchronization error, clock timing error, multipath effect, not line of sight （NLOS）delay error, electromagnetic disturbance between positioning substation and positioning card, it has large positioning error in the existing ...
SUN Zhexing, WANG Yanwen
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Design and implementation of portable positioning instrument based on Bluetooth transmission
Meikuang Anquan, 2022 A portable positioning instrument for personnel positioning is designed. The positioning instrument has UWB precise positioning and RFID region positioning, which can ensure that the personnel positioning system can be used before and after upgrading ...
WANG Wei, CHEN Xian, JIN Yeyong
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Application of UWB technology in accurate personnel positioning system
Meikuang Anquan, 2021 In this paper, through the research of ultra wideband wireless carrier communication technology（ＵＷＢ）, using TOF time difference positioning method, using the distance from the signal source to each monitoring point to determine the location of the ...
CHANG Lin
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Design of Coal Mine Positioning System Based on UWB
Meikuang Anquan, 2020 Aiming at the low positioning accuracy of the existing personnel positioning system in coal mine, the high precision personnel positioning system based on UWB technology is designed, the positioning principle of the system is analyzed, the location base
XIAO Kaitai
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Application of Kalman filter in underground personnel tracking and positioning
Gong-kuang zidonghua, 2013 In view of problem that RSSI location algorithm does not have continuity in positioning process, the paper proposed an underground personnel positioning method with continuity based on Kalman filter.
LUO Yu-feng, LIU Yong, LI Fang
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