RESCUE SIGNAL GENERATOR TO RESPOND TO SAFETY ACCIDENTS IN UNDERGROUND SPACES

摘要

The present invention is a rescue signal transmission and reception system which tracks a location of a rescue target when a safety accident occurs in an underground space, which comprises: a plurality of micro-destructive sound sensors installed in the underground space to detect micro-destructive noise; a rescue signal generator generating a rescue signal; and a control unit calculating a time difference at which the rescue signal reaches each of the plurality of micro-destructive sound sensors and tracking the location of the rescue signal generator in the underground space.