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Mining Publication: Performance Evaluation of Electromagnetic Techniques for the Location of Trapped Miners
Keywords: Communications, location tracking, and signalling Electronic tracking systems Emergency response Through-the-earth communications systems Wireless node communications systems
Original creation date: January 1982
Authors: JA Durkin
Report of Investigations - January 1982
Download PDF Document (1.67 MB)
NIOSHTIC2 Number: 10002571
U.S. Department of the Interior, Bureau of Mines. Report of Investigations 8711, NTIS PB83-144600, 1982; :1-35
The Bureau of Mines (NIOSH Mining) has conducted field studies in coal mines throughout the United States to determine the effectiveness of electromagnetic techniques in locating miners trapped underground following a mine accident. Data from these tests have been used to generate models of expected signal and noise distributions as found above mines throughout the coalfields. These distributions have aided in placing the expected performance of a through-the-earth electromagnetic communications technique into a probabilistic framework. Results show that at a 10 percent false alarm rate, the expected probability of detecting a miners signal from a depth of 1,000 ft is 54 percent; at 500 ft it is 95 percent. These depths exceed the actual depths of 90 percent and 50 percent, respectively, of U.S. coal mines. Sensitivity studies have shown that at a depth of 1,000 ft, for every 3 db of improvement in signal-to-noise ratio, the probability of detection increases 6 to 8 percent.
Image of publication Performance Evaluation of Electromagnetic Techniques for the Location of Trapped MinersReport of Investigations - January 1982
Download PDF Document (1.67 MB)
NIOSHTIC2 Number: 10002571
U.S. Department of the Interior, Bureau of Mines. Report of Investigations 8711, NTIS PB83-144600, 1982; :1-35
See Also
Adaptive-Noise-Cancellation Techniques for Through-the-Earth Electromagnetics: Volume III
Assessment of Present Electromagnetic Techniques for the Location of Trapped Miners
Basic Tutorial on Wireless Communication and Electronic Tracking: Technology Overview
Communication Systems Research At Bruceton Safety Research Mine
Development of a Through-the-Earth Monitor System
Emergency Communications and Tracking
NIOSH-Sponsored Research in Through-the-Earth Communications for Mines: A Status Report
Propagation of EM Signals in Underground Mines
Technology News 544 - New Measurement Tool to Validate Wireless Communications and Tracking Radio Signal Coverage in Mines
Through-The-Earth Wireless Real-Time Two-Way Voice Communications
Page last reviewed: August 8, 2017
Page last updated: September 21, 2012
Content source: National Institute for Occupational Safety and Health, Mining Program
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