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arXiv 2404.05293cs.RO
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长时间自身体图像获取及其在肌肉骨骼结构控制中的应用

Long-time Self-body Image Acquisition and its Application to the Control of Musculoskeletal Structures

The University of Tokyo(东京大学)

Kento Kawaharazuka, Kei Tsuzuki, Shogo Makino, Moritaka Onitsuka, Yuki Asano, Kei Okada, Koji Kawasaki, Masayuki Inaba

AI总结:

针对肌肉骨骼仿生人结构复杂、传统模型控制难以实现预期动作的问题,提出长时间学习获取关节角度、肌肉张力与长度关系的自身体图像系统,并通过3小时实验验证其可支持位置、力矩和变刚度控制。

摘要:

肌腱驱动的肌肉骨骼仿生人具有人类所拥有的诸多优势,但其复杂的肌肉与骨骼结构建模困难,传统的基于模型的控制无法实现预期动作。因此,需要一种学习控制机制,从真实机器人中获取关节角度、肌肉张力与肌肉长度之间的非线性关系。本研究提出了一种长时间运行该学习控制机制的系统,以始终保持肌肉骨骼仿生人自身体图像的正确性。此外,我们展示了肌肉骨骼仿生人能够利用这种自身体图像进行位置控制、力矩控制和变刚度控制。我们开展了持续3小时的长时间自身体图像获取实验,评估了利用该自身体图像进行的变刚度控制等,并全面讨论了肌肉骨骼结构自身体图像获取的优越性与实用性。

英文摘要:

The tendon-driven musculoskeletal humanoid has many benefits that human beings have, but the modeling of its complex muscle and bone structures is difficult and conventional model-based controls cannot realize intended movements. Therefore, a learning control mechanism that acquires nonlinear relationships between joint angles, muscle tensions, and muscle lengths from the actual robot is necessary. In this study, we propose a system which runs the learning control mechanism for a long time to keep the self-body image of the musculoskeletal humanoid correct at all times. Also, we show that the musculoskeletal humanoid can conduct position control, torque control, and variable stiffness control using this self-body image. We conduct a long-time self-body image acquisition experiment lasting 3 hours, evaluate variable stiffness control using the self-body image, etc., and discuss the superiority and practicality of the self-body image acquisition of musculoskeletal structures, comprehensively.

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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