Results 21 to 30 of about 28,359 (215)
Design and implementation of portable positioning instrument based on Bluetooth transmission
Meikuang Anquan, 2022 A portable positioning instrument for personnel positioning is designed. The positioning instrument has UWB precise positioning and RFID region positioning, which can ensure that the personnel positioning system can be used before and after upgrading ...
WANG Wei, CHEN Xian, JIN Yeyong
doaj +1 more source
Research on UWB personnel positioning system in coal mine
Gong-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 +1 more source
Design of a new type of combined underground personnel positioning system
Gong-kuang zidonghua, 2014 In view of problems that current underground personnel positioning has low accuracy, cannot realize real-time global positioning and it is difficult to search and rescue trapped people, a combined underground personnel positioning system based on ...
LIU Yong +3 more
doaj +1 more source
Application of UWB technology in accurate personnel positioning system
Meikuang 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 +1 more source
Design of multi-positioning technology protocol fusion positioning system
Meikuang Anquan, 2021 Aiming at the problem that the underground positioning of coal mine mostly depends on RFID positioning technology, and the upgrade cost of accurate positioning is high, a multi-positioning technology protocol fusion positioning system is proposed.
LIU Yahui
doaj +1 more source
Gong-kuang zidonghua, 2015 In view of problem of high cost and big construction difficulty of existing accurate personnel positioning system which needs two base stations to complete direction recognition function, a kind of direction recognition technology based on single base ...
TANG Lijun, WU Wei
doaj +1 more source
Regional Monitoring Controller Based on Underground Multi-systems
Meikuang Anquan, 2020 A regional monitoring controller based on safety monitoring system, personnel positioning system, information guidance publishing system and broadcasting system is designed.
ZHOU Daiyong
doaj +1 more source
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
doaj +1 more source
Therapeutic Apheresis and Dialysis, EarlyView.ABSTRACT Introduction This study investigated the safety and efficacy of single‐needle Rheocarna therapy for chronic limb‐threatening ischemia (CLTI) with wounds. Methods Six patients with CLTI involving ulcers unresponsive to revascularization underwent single‐needle Rheocarna treatment.
Yasutaka Yamauchi +9 more
wiley +1 more source
Therapeutic Apheresis and Dialysis, EarlyView.ABSTRACT Background Patients with chronic kidney disease undergoing hemodialysis commonly experience reduced physical function, fatigue, poor sleep quality, and impaired health‐related quality of life. Intradialytic exercise has been proposed as a non‐pharmacological strategy to improve these outcomes.
Klebson da Silva Almeida +6 more
wiley +1 more source