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arXiv 2105.01697cs.RO
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具有控制障碍功能和投影状态安全性的安全双足运动的情景学习

Episodic Learning for Safe Bipedal Locomotion with Control Barrier Functions and Projection-to-State Safety

Caltech(加州理工学院)

Noel Csomay-Shanklin, Ryan K. Cosner, Min Dai, Andrew J. Taylor, Aaron D. Ames

摘要:

本文结合情景学习和控制障碍功能的设置双足运动。控制屏障功能提供的安全保证仅在完美的模型知识下有效;然而,在硬件平台上无法满足此假设。为了解决这个问题,我们利用投影到状态安全的概念与机器学习框架相结合,试图学习模型的不确定性,因为它会影响障碍函数。所提出的方法被证明在模拟和硬件上的琥珀-3 M双足机器人的背景下的踏脚石问题,这需要精确的脚的位置,同时动态行走。

英文摘要:

This paper combines episodic learning and control barrier functions in the setting of bipedal locomotion. The safety guarantees that control barrier functions provide are only valid with perfect model knowledge; however, this assumption cannot be met on hardware platforms. To address this, we utilize the notion of projection-to-state safety paired with a machine learning framework in an attempt to learn the model uncertainty as it affects the barrier functions. The proposed approach is demonstrated both in simulation and on hardware for the AMBER-3M bipedal robot in the context of the stepping-stone problem, which requires precise foot placement while walking dynamically.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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