DocumentCode
1713751
Title
Vehicular communications 2500 feet underground
Author
Chufo, Robert L.
Author_Institution
U. S. Department of the Interior, Pittsburgh, Pa.
Volume
27
fYear
1977
Firstpage
161
Lastpage
165
Abstract
An underground communications system has been installed in Bethlehem Mines Corporation\´s Grace Iron Mine. The system provides communications for trackless vehicles and roving personnel without the requirement for a dispatcher. UHF/VHF repeaters are combined with coaxial "leaky-feeder" and twin-lead transmission line to form an operational and emergency communication network not previously found in mine communication systems. Key functions are evacuation alarming, personnel paging and communications with maintenance personnel and the underground ambulance.
Keywords
Communication cables; Communication system control; Condition monitoring; Control systems; Hardware; Personnel; Production; Repeaters; Shafts; Wireless communication;
fLanguage
English
Publisher
ieee
Conference_Titel
Vehicular Technology Conference, 1977. 27th IEEE
Type
conf
DOI
10.1109/VTC.1977.1622436
Filename
1622436
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