Results 11 to 20 of about 1,192,531 (239)
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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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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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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Fusion algorithm of underground personnel positioning based on self-organizing competitive network
Gong-kuang zidonghua, 2016 In view of problem of big positioning error of underground personnel positioning method based on weighted centroid algorithm, a fusion algorithm of underground personnel positioning based on self-organizing competitive network was proposed. The algorithm
ZHANG Jianying, ZHANG Yuehui, ZHOU Liyu
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Meikuang Anquan, 2021 This paper analyzes the development status of wireless positioning technology. On this basis, this paper introduces the current situation of wireless positioning technology in coal mine, and the application of underground positioning system, and focuses
CHANG Lin
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Gong-kuang zidonghua, 2022 During the underground transmission of wireless signal, the measurement between card reader and marker card fails due to signal strength attenuation and interference.
TANG Lijun, WU Wei, LIU Shisen
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Principle of Underground Personnel Positioning System Based on RSSI and Its Desig
Gong-kuang zidonghua, 2010 The paper proposed a design scheme of underground personnel positioning system based on RSSI, expounded mathematical modeling method of underground tunnel and the basic theory of personnel positioning, and mainly introduced implementation schemes of ...
WU Dan-chen +3 more
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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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Underground personnel positioning system based on fingerprint and dead-reckoning
Gong-kuang zidonghua, 2016 In view of problem that RSSI-based fingerprint positioning method is greatly influenced by environment of coal mine tunnel, and localization method based on dead-reckoning is easy to form accumulation of errors, underground personnel positioning system ...
MA Jing +3 more
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Design of an intelligent accurate personnel positioning system for mine
Gong-kuang zidonghua, 2017 In view of problems of difficult deployment and high cost caused by a lot of wired communication cable and low intelligence of request for help in emergency existed in current accurate personnel positioning system of coal mine underground, an intelligent
WU Wei, TANG Lijun, JIANG Decai
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