Abstract
본 논문에서는 4족 로봇의 허리 관절을 이용하여 보행시 발생하는 몸체의 흔들림을 최소화하는 걸음새 방법을 제안한다. 제안한 방법에서는 4족 로봇의 기하학적 모델을 이용하여 몸체의 기울기에 따른 몸체의 힙(hip) 좌표를 계산하고, 이를 2자유도(Digree of Freedom: DOF)를 갖는 허리 관절을 이용하여 4족 로봇의 무게중심(Center of Gravity: CoG)을 이동시킴으로써 몸체의 흔들림을 최소화한다. 이 때, 로봇의 걸음새는 물결 걸음새(wave gate)를 이용하여 보행한다. 마지막으로, 4족 보행 로봇의 모의 실험을 통해 기존 방법과 비교함으로써 본 논문에서 제안한 방법의 효용성을 검증한다. In this paper, we propose a gait generation method for a quadruped robot using the waist joints which can minimize the body shake during the locomotion. In this proposed method, we first calculate the hip coordinate of tilted body using the geometrical model of a quadruped robot, and then move the CoG(Center of Gravity) of a quadruped robot using 2-DOF waist joints to minimizes the body shake. In addition, the gait of a quadruped robot is generated based on the wave gait method. Finally, we verify the effectiveness of the proposed method by comparing with that of the previous method through the computer simulations.
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More From: Journal of Korean Institute of Intelligent Systems
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