Why a researcher is building robots that look and act like bats (techcrunch.com)

A researcher at Worcester Polytechnic Institute, Nitin J. Sanket, is developing palm-sized flying robots that mimic bats for search and rescue missions in hazardous environments. These robots utilize AI-powered software to filter ultrasound signals for obstacle detection within a two-meter radius, aiming to improve safety and efficiency compared to traditional human-led efforts in dangerous conditions. Sanket’s inspiration stems from the effectiveness of biological systems, prompting a shift from conventional drone designs to more biology-inspired innovations. The project faced challenges in balancing size, cost, and energy efficiency while integrating the necessary sensors. By leveraging ultrasound sensors commonly found in automatic faucets, the team overcame some limitations, but encountered issues with propeller noise interfering with obstacle detection. To address this, they explored bat anatomy, designing a 3D-printed structure that modulates sound akin to the way bats do, enhancing the robots’ navigational capabilities. With the robots operational, the next step is to optimize their speed, further showcasing the potential of biomimicry in advancing AI and robotics.