Results 1 - 10 of 27

• Basic Tutorial on Wireless Communication and Electronic Tracking: Technology Overview
  2/6/2013 - Training materials
  This tutorial provides a brief overview of CT systems intended to meet the needs of people who require a basic understanding of the distinguishing features and operations of different CT systems.
• Theory on the Propagation of UHF Radio Waves in Coal Mine Tunnels
  3/1/1975 - Peer reviewed journal articles
  The theoretical study of UHF radio communication in coal mines, with particular reference to the rate of loss of signal strength along a tunnel, and from one tunnel to another around a corner is the concern of this paper. This work was part of an invest...
• Demonstration of the Ability of Distributed Fiber Optic Sensing Technologies to Enhance Mine Safety
  8/23/2016 - Contracts and cooperative agreements
  A contract to explore early detection of rock movement signaling imminent underground space or pit wall collapse in mines, which has the potential to prevent loss of life and serious injuries from mine disasters.
• A Magnetic Communication System for Use in Mine Environments
  7/19/2016 - Contracts and cooperative agreements
  A contract to develop and demo a two-way, through-the-earth communication system for mines that applies state-of-the-art communications technologies to overcome subterranean wireless communication challenges while meeting industrial safety standards.
• Development of a Seismic System for Locating Trapped Miners
  7/18/2016 - Contracts and cooperative agreements
  A contract to evaluate SureWave Technology's seismic system for locating trapped miners by conducting tests at depths of 2,000 ft or more and under various challenging but common conditions.
• Wireless Through-The-Earth Modeling and Support
  8/15/2014 - Contracts and cooperative agreements
  A contract to determine the factors that most affect signal transmission and reception for through-the-earth communication systems.
• Refuge Chamber Deployment and Occupancy Status During Mine Emergency Situations
  8/14/2014 - Contracts and cooperative agreements
  A contract to incorporate a wireless base station into the MagneLink Magnetic Communication System (MCS) and to develop a mechanism that automatically activates a portable wireless text messaging device when a refuge chamber is opened or deployed.
• Visual feedback system to reduce errors while operating roof bolting machines
  2/1/2013 - Peer reviewed journal articles
  An experiment was conducted to explore coding and directional compatibility on roof bolting equipment and to determine the feasibility of a visual feedback system to alert operators of critical movements and workers in close proximity to the equipment.
• Passive Fiber Optic System for Locating, Tracking, and Communicating with Personnel in Coal Mines
  9/17/2012 - Contracts and cooperative agreements
  A contract to develop and demonstrate a modified, fiber optic-based perimeter security system to track personnel in an underground coal mine.
• Nonverbal Communication for Mine Emergencies
  11/1/2011 - Reports of Investigations, Training materials
  Nonverbal Communication for Mine Emergencies is a training program that teaches miners a series of nonverbal hand signals to use in the event of an emergency. These hand signals can be used by miners if they are unable to communicate verbally.