New drone uses artificial 'whiskers' for tactile navigation in challenging environments

Researchers at Delft University of Technology have developed a lightweight drone that utilizes artificial whiskers to navigate environments where traditional sensors fail. Weighing less than 100 grams, the drone mimics biological systems by using two slender filaments connected to pressure sensors to detect physical contact with surroundings. This tactile navigation system allows the aircraft to operate effectively in dark, smoky, or dusty conditions, such as collapsed buildings, where cameras and GPS are often unreliable. The onboard software is highly efficient, requiring only 34 kilobytes of memory to process tactile data in real time while filtering out wind turbulence. By enabling autonomous movement through physical touch, this technology offers a promising solution for search-and-rescue missions in tight, unstable spaces where optical navigation is compromised. The project demonstrates that sophisticated sensing capabilities can be achieved on small, low-power platforms without the need for heavy computational hardware.