SwarmTouch: Tactile Interaction of Human with Impedance Controlled Swarm of Nano-Quadrotors
This work addresses the challenge of intuitive control for human operators interacting with complex drone swarms, offering incremental improvements in tactile feedback for enhanced interaction.
The paper tackled the problem of human-swarm interaction by developing a tactile feedback system where a human operator guides a quadrotor swarm using impedance control and receives vibrotactile cues, resulting in high recognition rates and improved controllability in user studies.
We propose a novel interaction strategy for a human-swarm communication when a human operator guides a formation of quadrotors with impedance control and receives vibrotactile feedback. The presented approach takes into account the human hand velocity and changes the formation shape and dynamics accordingly using impedance interlinks simulated between quadrotors, which helps to achieve a life-like swarm behavior. Experimental results with Crazyflie 2.0 quadrotor platform validate the proposed control algorithm. The tactile patterns representing dynamics of the swarm (extension or contraction) are proposed. The user feels the state of the swarm at his fingertips and receives valuable information to improve the controllability of the complex life-like formation. The user study revealed the patterns with high recognition rates. Subjects stated that tactile sensation improves the ability to guide the drone formation and makes the human-swarm communication much more interactive. The proposed technology can potentially have a strong impact on the human-swarm interaction, providing a new level of intuitiveness and immersion into the swarm navigation.