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Control and monitoring via medium-frequency techniques and existing mine conductors.

Authors
Dobroski-H Jr.; Stolarczyk-LG
Source
IEEE Trans Ind Appl 1985 Jul; IA-21(4):1087-1092
NIOSHTIC No.
10005026
Abstract
Medium-frequency (mf) techniques have been successfully applied to the problem of radio voice communications in both coal and metal and nonmetal mines. Long range is achieved by taking advantage of existing mine conductors that carry and propagate the signal over vast areas. It is very likely that in the near future such systems will become the preferred method for general mine communications. Mf techniques can also be applied to the areas of in-mine control and monitoring. Preliminary work in this area is described. In a western mine, locomotives are being operated under mf remote control in a loading operation. In several eastern mines, mf has been evaluated as a method for monitoring the status of devices in remote areas of the mines. All control and monitor information uses existing mine conductors.
Keywords
Mining-industry; Coal-mining; Mine-workers; Metal-mining; Mine-shafts
CODEN
ITIACR
Publication Date
19850701
Document Type
OP; Journal Article
Fiscal Year
1985
NTIS Accession No.
NTIS Price
Identifying No.
OP 35-86
Issue of Publication
4
ISSN
0093-9994
NIOSH Division
PRC
Source Name
IEEE Transactions on Industry Applications
State
PA
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