Results 1 to 10 of about 240,781 (209)
A Wireless Sensor Network Based Personnel Positioning Scheme in Coal Mines with Blind Areas [PDF]
Sensors, 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 +4 more sources
Mine personnel position monitoring technology
Gong-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 +2 more sources
A quadratic weighted centroid algorithm for tunnel personnel positioning [PDF]
International Journal of Distributed Sensor Networks, 2020 To improve the accuracy and generalization of tunnel personnel positioning systems, this article proposes a quadratic weighted centroid algorithm. By adopting a Gaussian filter model to improve the range accuracy of the received signal strength indicator algorithm and combining the centroid algorithm and weighting factor with a trilateration ...
Haiying Wang, LinHao Liang
exaly +3 more sources
Meikuang 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
LSTM Network-Assisted Binocular Visual-Inertial Person Localization Method under a Moving Base
Applied Sciences, 2023 In order to accurately locate personnel in underground spaces, positioning equipment is required to be mounted on wearable equipment. But the wearable inertial personnel positioning equipment moves with personnel and the phenomenon of measurement ...
Zheng Xu, Zhong Su, Dongyue Dai
doaj +1 more source
Design of personnel positioning system for fully mechanized coal face with low power consumption
Meikuang 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
The perplexing problem of persistently PCR-positive personnel
Infection Control & Hospital Epidemiology, 2020 Early in the coronavirus disease 2019 (COVID-19) pandemic, the Centers for Disease Control and Prevention (CDC) published return-to-work criteria for healthcare personnel who had recovered from severe acute respiratory coronavirus virus 2 (SARS-CoV-2) infection.
Henderson, David K. +12 more
openaire +3 more sources
Gong-kuang zidonghua, 2022 The traditional pedestrian dead reckoning (PDR) algorithm has low positioning precision due to the accumulated errors of step size and heading, which can not meet the requirements of precise positioning of underground personnel.
GUO Qianqian +4 more
doaj +1 more source
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
doaj +1 more source
Management System for Precise Location Map of Underground Personnel Based on 3D GIS
Meikuang 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