Echolocation could give small robots the ability to find lost people
The system works just like bat echolocation. It was designed to emit sounds across frequencies, which a robot's microphone then picks up as they bounce off walls. An algorithm that team created then goes to work to analyze sound waves and create a map with the room's dimensions. , they said existing"algorithms for active echolocation are less developed and often rely on hardware requirements that are out of reach for small robots.
" The researchers also said their"method is model-based, runs in real time and requires no prior calibration or training." Their solution could give small machines the capability to be sent on search-and-rescue missions or to previously uncharted locations that bigger robots wouldn't be able to reach. And since the system only needs onboard audio equipment or cheap additional hardware, it has a wide range of potential applications.
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