Trajectory Generation from Motion Capture for a Planar Biped Robot in Swing Phase

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Diego A Bravo https://orcid.org/0000-0001-7041-3183
Carlos F Rengifo R

Keywords

biped robot, motion capture, trajectory generation, dynamic model

Abstract

This paper proposes human motion capture to generate movements for the right leg in swing phase of a biped robot restricted to the sagittal plane. Such movements are defined by time functions representing the desired angular positions for the joints involved. Motion capture performed with a Microsoft Kinect TM camera and from the data obtained joint trajectories were generated to control the robot’s right leg in swing phase. The proposed control law is a hybrid strategy; the first strategy is based on a computed torque control to track reference trajectories, and the second strategy is based on time scaling control ensuring the robot’s balance. This work is a preliminary study to generate humanoid robot trajectories from motion capture.

PACS: 87.85.St

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