초록 ▼

A rescue guiding system for underground mine personnel to guide the movement of a person during hazardous life-threatening situations from a work area through a passageway to a refuge bay, including a network of short-range radio transmitters each transmitting a different digitally coded signal and

A rescue guiding system for underground mine personnel to guide the movement of a person during hazardous life-threatening situations from a work area through a passageway to a refuge bay, including a network of short-range radio transmitters each transmitting a different digitally coded signal and a receiver for each person having an indication device to guide the person in the correct direction to reach the refuge bay.

대표청구항 ▼

[ The invention is hereby claimed as follows:] [1.]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

[ The invention is hereby claimed as follows:] [1.]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.