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arXiv 2307.09246cs.RO
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基于强化学习的液压工程机械任务空间控制

Task Space Control of Hydraulic Construction Machines using Reinforcement Learning

RWTH Aachen University(亚琛工业大学)

Hyung Joo Lee, Sigrid Brell-Cokcan

AI总结:

针对液压工程机械关节层面控制难、任务空间精确控制依赖动力学模型的问题,研究提出将数据驱动执行器模型融入仿真与强化学习以获取最优任务空间控制策略,经Brokk 170实验验证,效果优于经典雅可比方法。

摘要:

遥操作在建筑行业至关重要,可实现远距离的安全机械操控。但由于机械自由度复杂,在关节层面控制机械需要大量培训。任务空间控制可提供直观的操控方式,但精确控制通常需要动力学模型,这给液压机械带来了挑战。为解决该问题,我们使用数据驱动的执行器模型来捕捉实际作业中的机械动力学。将该模型集成到仿真与强化学习中,即可得到任务空间控制的最优控制策略。我们在Brokk 170上开展实验验证了该框架,并将其与一种知名的基于雅可比的方法进行了对比。

英文摘要:

Teleoperation is vital in the construction industry, allowing safe machine manipulation from a distance. However, controlling machines at a joint level requires extensive training due to their complex degrees of freedom. Task space control offers intuitive maneuvering, but precise control often requires dynamic models, posing challenges for hydraulic machines. To address this, we use a data-driven actuator model to capture machine dynamics in real-world operations. By integrating this model into simulation and reinforcement learning, an optimal control policy for task space control is obtained. Experiments with Brokk 170 validate the framework, comparing it to a well-known Jacobian-based approach.

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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