A group of researchers from Fraunhofer FKIE Institute, Germany Created a drone that can locate screaming humans. Although this sounds like the content of a dystopian novel, it is actually something they set out to create to make it easier for first responders to find survivors after natural disasters.
“(Drones) can cover a larger area in a shorter period of time, instead of rescuers or well-trained dogs on the ground,” Macarena Varela, one of the project’s chief engineers, told Washington post“If there is a collapsed building, it can alert and assist rescuers. It can go to places they cannot fly to or cannot reach by themselves.”
To build their drone, the researchers first recorded their own screams, knocks, and other sounds that might be made by people in need. They then use these recordings to train artificial intelligence algorithms and adjust the software to filter out environmental sounds such as the hum of drone rotors. Except for the software and drones, the rest of the system is not that complicated. The team used the type of microphone you might find on a smartphone, mainly because they wanted to keep the drone light and flexible.
Varela told post The Fraunhofer FKIE team conducted several successful open-air tests, and their drone managed to estimate the location of someone “within a few seconds” after receiving the sound of someone. As a next step, the researchers plan to add a higher-frequency microphone to the prototype to better detect sounds at greater distances.
This is not the first time we have seen scientists consider using sound to enhance the capabilities of drones.Last year, a team of researchers from Purdue University developed a system that allows drones to navigate Use four microphones and one speaker. Judging from its sound, this latest project may make a difference.The Fraunhofer FKIE team told post Some organizations that wanted to work with them approached them.
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