Human-State-Aware Controller for a Tethered Aerial Robot Guiding a Human by Physical Interaction
Mike Allenspach, Yash Vyas, Matthias Rubio, Roland Siegwart, Marco, Tognon

TL;DR
This paper introduces a human-state-aware controller for tethered aerial robots that incorporates human velocity feedback, improving guidance effectiveness and comfort during physical interaction.
Contribution
It presents a novel controller that adapts to human behavior by including velocity feedback, enhancing aerial robot-human physical interaction.
Findings
The new controller provides more consistent guiding forces.
Experimental results show improved guidance experience.
Theoretical analysis confirms stability and effectiveness.
Abstract
With the rapid development of Aerial Physical Interaction, the possibility to have aerial robots physically interacting with humans is attracting a growing interest. In one of our previous works, we considered one of the first systems in which a human is physically connected to an aerial vehicle by a cable. There, we developed a compliant controller that allows the robot to pull the human toward a desired position using forces only as an indirect communication-channel. However, this controller is based on the robot-state only, which makes the system not adaptable to the human behavior, and in particular to their walking speed. This reduces the effectiveness and comfort of the guidance when the human is still far from the desired point. In this paper, we formally analyze the problem and propose a human-state-aware controller that includes a human`s velocity feedback. We theoretically…
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