Results 1 - 10 of 34

• Advanced Tutorial on Wireless Communication and Electronic Tracking: Introduction
  5/9/2019 - Training materials
  This tutorial provides an advanced discussion of the available CT technologies, operating characteristics and general system performance considerations with descriptions of specific uses for primary and secondary communications.
• Technology News 546 - Medium Frequency Mine Emergency Communications - An Emerging Technology
  2/1/2012 - Technology News
  Medium frequency communications systems do not require a powered underground infrastructure to be installed for operation, and may therefore provide a higher degree of survivability after a mine disaster than other types of systems.
• Advancement of Refuge Alternatives for Underground Coal Mines
  5/9/2019 - Research projects
  A project to minimize the risk of heat illness for miners entering an RA, ensure the availability of air delivery and purging systems for RAs, facilitate the use of BIP RAs, and develop a reliable communications system for RAs.
• Advanced Tutorial on Wireless Communication and Electronic Tracking: Mine Operations Center (MOC)
  5/9/2019 - Training materials
  Section 6 of the OMSHR advanced tutorial on wireless commumnication and electronic tracking covering the mine operations center.
• Advanced Tutorial on Wireless Communication and Electronic Tracking: CT System Survivability, Reliability, And Availability
  5/9/2019 - Training materials
  Section 4 of the OMSHR advanced tutorial on wireless communication and tracking covering CT system survivability, reliability and availability.
• Simulation and Measurement of Through-the-Earth, Extremely Low-Frequency Signals Using Copper-Clad Steel Ground Rods
  9/1/2017 - Peer reviewed journal articles
  A paper presenting the simulation and measurement results of recent NIOSH research aimed at investigating current injection at extremely low-frequency, and in particular, ground contact impedance.
• Communications and Tracking Systems Modeling and Performance
  3/13/2017 - Research projects
  A project to enhance the understanding of underground mining communication and tracking system performance through the development and validation of radio signal propagation models.
• Industrial Internet of Things (IIoT) Applications in Underground Coal Mines
  12/17/2016 - Research projects
  A project to investigate the feasibility potential to develop and implement IIoT concepts into the mining industry.
• Mobile Adaptable RF/IT Infrastructure - Experimental (MATRIX)
  7/19/2016 - Contracts and cooperative agreements
  A contract to test the efficacy of deploying a vehicular satellite communication system, augmented with rapidly deployable mesh networking nodes and other emerging telecommunications technologies, during mine rescue and other emergency events.
• Magnetic Communication System (MCS)
  7/19/2016 - Contracts and cooperative agreements
  A contract to enhance key features of the through-the-earth prototype previously developed to improve its usability, investigate design changes to comply with mine safety standards, ruggedize the hardware, and demonstrate performance at coal mine sites.