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arXiv 2302.14249cs.RO
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无模型和无学习的本体感知类人运动控制

Model-Free and Learning-Free Proprioceptive Humanoid Movement Control

National University of Singapore(新加坡国立大学);Johns Hopkins University(约翰斯·霍普金斯大学)

Boren Jiang, Ximeng Tao, Yuanfeng Han, Wanze Li, Gregory S. Chirikjian

摘要:

提出了一种新的无模型拟人机器人准静态运动控制方法。传统的基于模型的方法通常需要精确的机器人模型参数。此外,现有的基于学习的框架通常在仿真环境中训练策略,从而间接地依赖于模型。相比之下,我们提出了一个本体感受的框架,只基于感官输出。它不需要机器人运动学模型或惯性参数的先验知识。我们的方法包括三个步骤:1.在单个周期内规划不同的压力中心(CoP)和脚部位置目标对。2.通过来回轻微移动机器人的腿关节来搜索当前配置,同时记录其CoP和脚位置的传感器测量值。3.使用优化算法更新机器人运动,直到实现所有目标。我们证明了我们的方法在NAO人形机器人平台上。实验结果表明,该方法能够成功地产生稳定的机器人运动。

英文摘要:

This paper presents a novel model-free method for humanoid-robot quasi-static movement control. Traditional model-based methods often require precise robot model parameters. Additionally, existing learning-based frameworks often train the policy in simulation environments, thereby indirectly relying on a model. In contrast, we propose a proprioceptive framework based only on sensory outputs. It does not require prior knowledge of a robot's kinematic model or inertial parameters. Our method consists of three steps: 1. Planning different pairs of center of pressure (CoP) and foot position objectives within a single cycle. 2. Searching around the current configuration by slightly moving the robot's leg joints back and forth while recording the sensor measurements of its CoP and foot positions. 3. Updating the robot motion with an optimization algorithm until all objectives are achieved. We demonstrate our approach on a NAO humanoid robot platform. Experiment results show that it can successfully generate stable robot motions.

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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