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Mining Publication: Improved Rail Haulage Communications
Keywords: Communication lines Communications Hauling
This page is archived for historical purposes and is no longer being maintained or updated. Contact NIOSH Mining if you need an accessible version.
Original creation date: October 1978
Authors: HH Dobroski
Conference Paper - October 1978
Download PDF Document (1.97 MB)
NIOSHTIC2 Number: 20032402
Proceedings of the Fourth WVU Conference on Coal Mine Electrotechnology, Morgantown WV, 8/2-8/4/1978. Morgantown WV: University of West Virginia, 1978 Oct; :29-1 - 29-14
Communications with moving tracked vehicles in a rail haulage mine pose a difficult problem. These communications take place from dispatcher to vehicles or from vehicle to vehicle via the trolley line, which is a very poor communications line. As a result, deadspots and high-signal areas can occur anywhere along the line, or signal can decrease simply as a function of distance. An analysis is made of the trolley line as a communications line, and methods of improving its characteristics are discussed. Data from in-mine experiments are presented, showing actual improvements in communications. Recent Bureau developments in new hardware are also discussed. These include an adaptive speaker control for existing carrier phones and a new generation of improved carrier phones.
Image of publication Improved Rail Haulage CommunicationsConference Paper - October 1978
Download PDF Document (1.97 MB)
NIOSHTIC2 Number: 20032402
Proceedings of the Fourth WVU Conference on Coal Mine Electrotechnology, Morgantown WV, 8/2-8/4/1978. Morgantown WV: University of West Virginia, 1978 Oct; :29-1 - 29-14
See Also
Development of a Visual Display and Control System
Medium-Frequency Propagation in Coal Mines
Mine Communications and Tracking Glossary
Propagation of EM Signals in Underground Mines
Research and Development Contract for Coal Mine Communication System: Volume 2 - Mine Visits
Theory on the Propagation of UHF Radio Waves in Coal Mine Tunnels
Through-The-Earth Wireless Real-Time Two-Way Voice Communications
Ultra-Low Frequency Through-the-Earth Communication Technology
Underground Mine Communications
Underground Mine Communications, Control and Monitoring
Page last reviewed: July 21, 2015
Page last updated: July 21, 2015
Content source: National Institute for Occupational Safety and Health, Mining Program
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