Results 21 to 30 of about 1,037,711 (234)

The changing roles of personnel managers: old ambiguities, new uncertainties [PDF]

, 2003
There have been notable attempts to capture the changing nature of personnel roles in response to major transformations in the workplace and the associated rise of ‘HRM’.
Caldwell, Raymond
core   +7 more sources

PDR algorithm for precise positioning of underground personnel based on LSTM personalized step size estimation

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, CUI Lizhen, YANG Yong, HE Jiaxing, SHI Mingquan   +4 more
doaj   +1 more source

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

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

Underground personnel positioning system based on ultra wideband technology

Gong-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

Research on improved PDR algorithm for underground personnel positioning

Gong-kuang zidonghua, 2021
As the traditional pedestrian dead reckoning (PDR) algorithm being used for underground personnel positioning, the positioning error gradually increases due to the cumulative error of the step frequency detection, step length estimation and heading ...
SUN Yanxin, MAO Shanjun, SU Ying, YANG Meng   +3 more
doaj   +1 more source

Practical classification methods for indoor positioning [PDF]

, 2012
Location awareness is of primary importance in a wealth of applications such as transportation, mobile health systems, augmented reality and navigation.
Mihaylova, Lyudmila, Honary, Mahsa, Xydeas, Costas   +2 more
core   +4 more sources

Journal of college student development

, 1959
Également disponible en version ...
American College Personnel Association
core   +2 more sources

Information collection of logistics management and personnel positioning system of mine

Gong-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, WEN Yicheng, SUN Chuanyu, WU Hui   +3 more
doaj   +1 more source

A method for identifying and locating underground personnel in a vehicle

Meikuang Anquan
Most of the existing accurate positioning systems for underground personnel are based on UWB positioning technology and adopt the layout mode of personnel positioning card + positioning substation, which can achieve centimeter-level high-precision ...
Xian CHEN, Shu ZHOU, Rong ZHANG
doaj   +1 more source