Results 111 - 120 of 251

• Technology News 551 - Through-the-Earth, Post-Accident Communications - an Emerging Technology
  12/1/2012 - Technology News
  A technology to provide a two-way communications system to improve miners' ability to communicate from underground to surface.
• System Reliability and Environmental Survivability
  9/22/2012 - Contracts and cooperative agreements
  A contract to develop a practical methodology with appropriate technical guidelines that enables mine operators and enforcement agencies to evaluate the reliability of underground communications, tracking, and atmospheric monitoring systems.
• Emergency Management
  9/21/2012 - Research areas
  Emergency Management Topic Page
• Two-Way, Through-the-Earth Emergency Communication System for Trapped Miners and the Surface
  9/18/2012 - Contracts and cooperative agreements
  A contract to design a prototype two-way, through-the-earth (TTE) emergency communication system, fabricate the hardware, and test the system at an underground coal mine.
• Performance and Safety Investigation of Emergency Backup Batteries and Battery Charging Systems for Underground Mining Applications
  9/18/2012 - Contracts and cooperative agreements
  A contract to address issues associated with battery selection, use, and charging for the underground coal mining environment, specifically with respect to MINER Act requirements for mine communications and personnel tracking technology.
• Ultra-Low Frequency Through-the-Earth Communication Technology
  9/18/2012 - Contracts and cooperative agreements
  A contract to analyze, adapt, and test an existing ultra-low frequency (ULF), through-the-earth system for communication and tracking of underground mine personnel.
• Through-The-Earth Wireless Real-Time Two-Way Voice Communications
  9/17/2012 - Contracts and cooperative agreements
  A contract to design, build, and demonstrate a battery-powered, through-the-earth wireless voice communication system for overburdens of up to 600 feet.
• 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.
• Mine Communications and Tracking Glossary
  9/17/2012 - Dictionaries and glossaries
  Mine Communications and Tracking Glossary
• Technology News 547 - Cost-Effective, Off-the-Shelf Wireless Links for Surface Integrated Mine Emergency Communications
  12/1/2011 - Technology News
  A surface network system using off-the-shelf components successfully established strategic communications links in a limited mine-simulated environment. The system could be expanded to link other communication devices and a command center.