Results 21 to 30 of about 225,477 (288)

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

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

Personnel Positioning System Method in Building Based on Inertial Sensor

open access: yesSecurity and Communication Networks, 2022
At present, the global positioning system has been widely used in outdoor positioning and navigation, but in buildings, thick walls made of cement and bricks have a certain blocking effect on satellite signals, resulting in severely weakened GPS signals, and also extremely it may have an impact on the positioning accuracy, so that the positioning task ...
Qingjun Wang, Zhendong Mu
openaire   +1 more source

SOAR (Support Office for Aerogeophysical Research) Annual Report 1995/1996 [PDF]

open access: yes, 1995
The Support Office for Aerogeophysical Research (SOAR) was a facility of the National Science Foundation's Office of Polar Programs whose mission is to make airborne geophysical observations available to the broad research community of geology ...
Bell, Robin E.   +3 more
core   +1 more source

Pengambilan Keputusan Dalam Penerimaan Karyawan Bank Dengan Pendekatan Terstruktur Berbasis Sistem Pakar [PDF]

open access: yes, 2012
Development of the information services in recruitment bank employees cannot be supported the availability of the information system component.
Saptadi, N. T. (N)   +1 more
core   +1 more source

Underground personnel and equipment location system based on iBeacon technology

open access: yesGong-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

Home - About - Disclaimer - Privacy