曲面上の触覚エルゴディックカバレッジ
Tactile Ergodic Coverage on Curved Surfaces
点群上で直接動作するエルゴディックカバレッジ手法を提案し、幾何代数によるインピーダンス制御でロボットに線を追従させながら所望の力を加える触覚カバレッジを実現した。
著者: Cem Bilaloglu, Tobias Löw, Sylvain Calinon
分類: cs.RO
原文アブストラクト
In this article, we present a feedback control method for tactile coverage tasks, such as cleaning or surface inspection. These tasks are challenging to plan due to complex continuous physical interactions. In these tasks, the coverage target and progress can be easily measured using a camera and encoded in a point cloud. We propose an ergodic coverage method that operates directly on point clouds, guiding the robot to spend more time on regions requiring more coverage. For robot control and contact behavior, we use geometric algebra to formulate a task-space impedance controller that tracks a line while simultaneously exerting a desired force along that line. We evaluate the performance of our method in kinematic simulations and demonstrate its applicability in real-world experiments on kitchenware. Our source codes, experimental data, and videos are available as open access at https://sites.google.com/view/tactile-ergodic-control/
