The working condition in coal mine is atroclous, once miners are stranded in coal mine when accident happened, how to find the location of the miners rapidly is the crux of rescue. This paper puts forward a wireless localization method used in coal mine which aims at the actual condition of coal mine, uses beacons and object nodes, measures the distance with the method of RF propagating time, with the precondition of comparing and analyzing the existing classic algorithm of measuring distance and localization. It discusses various factors that influence the precision of measuring distance and localization, calculates and provides the value of precision of measuring distance and localization based on node hardware.
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