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Shaft Communication

  • L.K. Bandyopadhyay
  • S.K. Chaulya
  • P.K. Mishra
Chapter

Abstract

Bell signaling system is commonly being used in underground mines. But this system has its own drawbacks. Therefore, a need exists for improved hoist communications between the skip and the hoist operator. An induction-based communication system using hoist/guide rope as a current carrier can be used for reliable and real-time communication in the shaft. The system transmits and receives energy over a transmission line through hoist/guide rope. Low-frequency transceivers are to be used as transmitting and receiving media. Ferrite current coupler can be used as antenna for the communication. An induction-based hoist communication system has been developed for establishing communication among the mine personnel present at pit top, in moving cage, and at pit bottom. The system consists of a low-frequency electromagnetic wave transceivers unit powered by the external battery and attached with a current coupler clamped with the guide rope, which induces the current throughout the rope (Bandyopadhyay et al., 2002).

Keywords

Audio Signal Electromagnetic Coupling Secondary Coil Primary Coil Audio Frequency 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media, LLC 2010

Authors and Affiliations

  1. 1.Central Institute of Mining & Fuel ResearchDhanbadIndia

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