Results 1 to 10 of about 1,037,711 (234)
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
doaj +2 more sources
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
doaj +2 more sources
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
doaj +1 more source
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
doaj +1 more source
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
doaj +1 more source
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
doaj +1 more source
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
doaj +1 more source
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
doaj +1 more source
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
doaj +1 more source
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
doaj +1 more source