Mining Publication: Improved Rail Haulage Communications
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.
Conference PaperOctober - 1978
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