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Rescue guilding system

  • US 6,215,410 B1
  • Filed: 02/02/2000
  • Issued: 04/10/2001
  • Est. Priority Date: 02/02/2000
  • Status: Expired due to Fees
First Claim
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1. A rescue guiding system for underground mine personnel to guide a person from a work area to a refuge bay,said system comprising:

  • a network of short-range radio transmitters spaced along a passageway extending from a mine face to a refuge bay, each radio transmitter transmitting a different digitally coded signal, and a radio receiver for each person receiving the coded signals and including an indicating device to indicate the direction the person should take to reach the refuge bay, each receiver having means for decoding the signals and driving the indicating device.

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