Humans shake hands as greetings of a first meeting to show a feeling of closeness. A handshake is an embodied interaction involving a physical contact to make communication smooth. A natural handshake between a robot and a human would presumably have the same effect. In this paper, we analyzed mutual handshaking between humans with and without voice greetings and propose a handshake approaching motion model based on the analysis. In this model, a robot can generate handshake approaching motion that is acceptable to a human using second-order lag and dead time elements from the trajectory of a human hand. Furthermore, we developed a handshake robot system by applying the proposed handshake approaching motion model and demonstrated the effectiveness of the approaching handshaking motion model and the handshake robot system through sensory evaluation.
Handshake refers to embodied interaction using physical contact for closeness. In this paper, we analyze the handshake motion between humans and propose a handshake approaching motion model and a shake-motion leading model based on the analysis. In the handshake approaching motion model, a robot can generate handshake approaching motion that is accepted psychologically by humans using the secondorder lag element and the dead time element from trajectory of human hand. Furthermore, a shake-motion leading model generates a leading motion in order to transit from approaching motion to shaking motion. A handshake robot system that adopts these proposed models is developed. The effectiveness of these models is demonstrated by sensory evaluation using the handshake robot system.
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