Results 1 to 10 of about 225,378 (190)

Mine Personnel Positioning System Based on Dual-Wavelength Phase Unwrapping. [PDF]

open access: yesComput Intell Neurosci, 2022
During the construction of coal mine laneway, due to the particularity of the geographical location and structure of the laneway, its accidents often occur, causing great trouble to the personal and property safety of the construction personnel.
Zhang H, Zhang L, Zhao Z.
europepmc   +3 more sources

Deep Learning-Based Vibration Signal Personnel Positioning System [PDF]

open access: yesIEEE Access, 2020
In this work, we present a person localization system based on ground vibration caused by walking persons. The system is designed for production plants and large buildings to track the movement of workers.
Yang Yu   +4 more
doaj   +4 more sources

Research on application of Hadoop in personnel positioning software system

open access: yesGong-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

Design of personnel positioning system of special coal mine

open access: yesGong-kuang zidonghua, 2015
For demand of positioning of ground personnel of special coal mine besides to underground personal, the paper proposed a design scheme of personnel positioning system of special coal mine which uses dual-frequency.
WANG Wei   +3 more
doaj   +2 more sources

Research on UWB personnel positioning system in coal mine

open access: yesGong-kuang zidonghua, 2022
In order to solve the problem that non-line-of-sight(NLOS) interference affects wireless signal transmission in complex underground environment of coal mines, an ultra wide band(UWB) personnel positioning system in coal mine is designed.
ZHANG Haijun   +3 more
doaj   +2 more sources

Underground personnel positioning system based on ultra wideband technology

open access: yesGong-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
doaj   +2 more sources

Design of an intelligent accurate personnel positioning system for mine

open access: yesGong-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
doaj   +2 more sources

Application of UWB technology in accurate personnel positioning system

open access: yesMeikuang 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

Research on positioning and re-measurement mechanism of underground precise personnel positioning system

open access: yesGong-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
doaj   +2 more sources

Information collection of logistics management and personnel positioning system of mine

open access: yesGong-kuang zidonghua, 2015
For resource waste problem caused by independent operation of mine logistics management system and personnel positioning system, a logistics management and personnel positioning system of mine was proposed by integrating the two systems.
XIAO Linjing   +3 more
doaj   +2 more sources

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