Korean researchers develop wearable interface for touch-based drone control
Researchers at South Korea's Jeonbuk National University have built a system that lets users command a drone with hand gestures and sense its position through belt vibrations, without constantly watching it.
Researchers at Jeonbuk National University in the Republic of Korea have developed a wearable interface for controlling drones. The system combines hand gestures with vibrations delivered through a belt, allowing an operator to issue commands and learn the drone's position without continuous visual monitoring. This could matter where keeping eyes on the aircraft is difficult, although the university stresses that practical use is still some way off.
The work was led by Professor Kee-Ho Yu of the Department of Aerospace Engineering, together with researcher Myeong-Ho Shin and Dr. Giancarlo Eder Guerra Padilla.
How the system works
A sensor is worn on the back of the hand, and a belt around the waist holds 36 vibration motors. The sensor lets the user give commands through familiar movements, while the belt conveys spatial information through touch. A computer interprets 12 gestures as drone commands. Drone telemetry is converted into vibration patterns that indicate direction, relative height and distance.
Test results
The interface was evaluated through gesture-recognition tests, simulated flying, an indoor tactile-perception study and two tasks with a real drone. According to the university, gesture recognition reached 97.58 percent accuracy, and users identified three-dimensional position through touch with 82.75 percent accuracy. Direction was recognised more reliably than distance, which proved the most confusing cue.
In point-to-point trials, one novice participant used the gesture controller with either visual or tactile-only feedback. Visual operation reached the target in all nine trials, averaging 31.4 seconds. Tactile-only operation succeeded in eight of nine trials, with an average time of 45.1 seconds. In a separate task, the participant returned the drone to its target zone after all eight boundary exits while vision and hearing were blocked.
The tests showed that tactile-only control is feasible but slower than visual operation. The team says larger studies in varied outdoor conditions are needed, along with improvements to distance cues, response speed, comfort and safety, before practical deployment can be assessed.
