Tau.Neutrino said:
Sensor sounds alert when elephants are shot at
Many wild elephants already wear GPS-equipped collars, which let wildlife officials track their whereabouts via radio signals. A hardware upgrade to those collars, however, could soon allow those officials to instantly know when poachers are shooting at the elephants, along with the location where it’s occurring.
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> Known as WIPER, the technology was developed in a collaboration between Vanderbilt University and Colorado State University. It consists of a sensor which detects the acoustic shockwave that’s produced when a high-powered weapon is fired. That shockwave occurs even if a silencer is being used.
No. So close to a brilliant idea.
The acoustic shockwave has a minuscule amount of power so the shooter would have to be very close to the elephant for detection to occur. A sniper could easily take out the elephant wearing the GPS collar without triggering the sensor.
Much better would be to ignore silenced weapons, poachers don’t use them anyway, and detect the sound of the gunshot. That would allow detection of shots that are so much further away that a single GPS collar could protect ten elephant herds.