Historically, detection systems used in mine rescues only detect trapped miner pounding when the signals are above the background noise. Several incidents are well published within the press of mine rescue where survivors were pounding but no system was deployed to detect this or was deployed but could not detect signals due to environmental or man-made noise nearby.
SureWave have developed technology that can detect signals millions of times smaller than any noise present.
In trials and tests, the system has detected pounding so small that other technology simply could not pick up. Furthermore, trapped miner pounding can be detected while the mine is in full operation to depths of 700m. If the mine was shut down as would be the case in a real rescue, the capability of the system would be able to detect at much greater depths and distances.
The ability to detect signals buried in the mine noise is critical as ventilation fans and other noise making equipment will still need to be in operation.
In a real life call out, the system reported the exact location of a trapped miner and monitored two rescue teams approaching the location in real time. This gave the mine rescue teams hitherto unavailable valuable information.