Results 1 to 10 of about 28,359 (215)

A Wireless Sensor Network Based Personnel Positioning Scheme in Coal Mines with Blind Areas

open access: yesSensors, 2010
This paper proposes a novel personnel positioning scheme for a tunnel network with blind areas, which compared with most existing schemes offers both low-cost and high-precision.
Shaobo Geng   +5 more
doaj   +3 more sources

Mine personnel position monitoring technology

open access: yesGong-kuang zidonghua, 2023
This paper analyzes the technologies of mine ranging and positioning, such as ultrasound, laser, video, inertial navigation, pedometer, and radio.
SUN Jiping
doaj   +1 more source

Application status and development direction of wireless positioning technology and system in underground coal mine

open access: yesMeikuang 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
doaj   +1 more source

Design of personnel positioning system for fully mechanized coal face with low power consumption

open access: yesMeikuang Anquan, 2023
Most of the existing accurate positioning systems for underground personnel adopt UWB positioning technology, which is based on the layout mode of personnel positioning card + positioning substation to achieve centimeter-level high precision positioning.
Xian CHEN, Shu ZHOU
doaj   +1 more source

Management System for Precise Location Map of Underground Personnel Based on 3D GIS

open access: yesMeikuang Anquan, 2020
Aiming at the problems that the spatial performance of underground tunnels in two-dimensional GIS simulation maps of coal mine underground positioning systems is not intuitive and the location of personnel is inaccurate, based on the monitoring data of ...
HONG Yuling
doaj   +1 more source

Real-time positioning correction algorithm for precise personnel positioning system in underground mine based on topologies of combined mine network and positioning equipment data

open access: yesMeikuang Anquan, 2022
For the problem that the accuracy of personnel positioning in coal mines is susceptible to the calculation errors of the hardware system and complex roadway conditions, which leads to the problem of inconsistency between the calculation results and the ...
ZHOU Xiang, HAN Yannan, ZHOU Jiaxin
doaj   +1 more source

Status and development trend of mine positioning technology

open access: yesGong-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

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   +1 more source

Design of Coal Mine Positioning System Based on UWB

open access: yesMeikuang 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

Research on wearable devices for safety of underground mine personnel

open access: yesGong-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

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