Results 21 to 30 of about 4,929,230 (276)
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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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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Personnel precise positioning system of coal mine underground based on UWB
, 2021 For short positioning distance, low positioning accuracy and location data jumping of personnel positioning system of coal mine based on Bluetooth, WiFi, RFID, Zigbee and so on, a precise positioning system was proposed which is based on UWB technology ...
Wei Chen
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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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Military Personnel Ratings of a Deployment and Their Positive and Negative Deployment Experiences [PDF]
Military Medicine, 2020 Abstract Introduction There is limited investigation of how military personnel evaluate their deployment experiences. An understanding of their perceptions would help unit psychologists to advise commanders on ways to improve the deployment experience (and therefore mental well-being) of personnel ...
Runge, Catherine E. +3 more
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Research on application of Hadoop in personnel positioning software system
Gong-kuang zidonghua, 2017 In order to solve the problem that existing personnel locating system can not meet large data access requirement of large-scale coal mines, Hadoop was proposed to be used in personnel positioning software system, and parallel computing model MapReduce ...
WANG Wei
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Design of personnel positioning system in coal mine underground based on MEMS sensor
Gong-kuang zidonghua, 2018 For problems of low positioning accuracy and high cost existed in current underground personnel positioning system, a personnel positioning system in coal mine underground based on MEMS sensor was designed.
ZHAO Yue, LAN Ying, QU Xian
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