A speaker might be more effective than a bullet

5 Aug , 2015  

Researchers in Korea have developed a method to throw off the gyroscopes that keep a multirotor in the air using sound waves. From ComputerWorld:

Researchers at the Korea Advanced Institute of Science and Technology (KAIST) in Daejon, South Korea, analyzed the effects of resonance on a crucial component of a drone, its gyroscope. Their paper will be presented next week at the 24th USENIX Security Symposium in Washington, D.C.

A gyroscope keeps a drone balanced, providing information on its tilt, orientation and rotation, allowing for micro-adjustments that keep it aloft. Hobbyist and some commercial drones use inexpensive gyroscopes that are designed as integrated circuit packages.

The team has been performing small scale experiments and have the able to disrupt the flight of a quadcopter using a speaker at a distance of 40 meters, or about 130.

Based on this research and experimentation, in the future, we might be able to keep pesky “drones” out of sensitive, private or secure areas using soundwaves. Head on over to ComputerWorld Australia for the full article.

Sounds can knock drones out of the sky – Computerworld.