arXiv:2505.02744cs.RO2025-05被引 4

用折纸机器人变身为可自适应的物理计算机,实现机器学习与感知。

Re-purposing a modular origami manipulator into an adaptive physical computer for machine learning and robotic perception

  • 将折纸机械臂改造为可调物理储层,通过结构配置实现计算。
  • 时间序列任务表现与峰值相似度指数直接相关,最高达0.92。
  • 能感知负载重量与方向,适合软体机器人和智能材料系统。

物理计算已成为在功能材料与机器人机械域直接执行智能任务的强大工具,减少对传统计算机的依赖。然而,尚无系统研究揭示机械设计如何影响物理计算性能。本研究通过将仿折纸模块化机械臂重构为自适应物理储层,系统评估其在不同物理配置、输入设置和计算任务下的计算能力。通过挑战经典NARMA基准任务,发现其时间序列拟合性能与目标输出和储层动态之间的频率谱相关性(峰值相似度指数,PSI)直接相关,最高达0.92。该自适应储层还展现出感知能力,能从内在动力学中准确提取负载重量与姿态信息,其提取能力可通过储层内部节点动力学的空间相关性衡量。最后,结合形状记忆合金(SMA)驱动,展示了如何利用物理本体中蕴含的计算能力实现实际机器人操作。本研究为从软体机器人与功能材料中挖掘计算潜能提供了战略框架,表明设计参数与输入选择可根据任务需求进行配置。将其扩展至生物启发的自适应材料、假肢及自适应软体机器人系统,有望实现下一代具身智能,使物理结构兼具计算与数字交互能力。

原文摘要 · Abstract (English)

Physical computing has emerged as a powerful tool for performing intelligent tasks directly in the mechanical domain of functional materials and robots, reducing our reliance on the more traditional COMS computers. However, no systematic study explains how mechanical design can influence physical computing performance. This study sheds insights into this question by repurposing an origami-inspired modular robotic manipulator into an adaptive physical reservoir and systematically evaluating its computing capacity with different physical configurations, input setups, and computing tasks. By challenging this adaptive reservoir computer to complete the classical NARMA benchmark tasks, this study shows that its time series emulation performance directly correlates to the Peak Similarity Index (PSI), which quantifies the frequency spectrum correlation between the target output and reservoir dynamics. The adaptive reservoir also demonstrates perception capabilities, accurately extracting its payload weight and orientation information from the intrinsic dynamics. Importantly, such information extraction capability can be measured by the spatial correlation between nodal dynamics within the reservoir body. Finally, by integrating shape memory alloy (SMA) actuation, this study demonstrates how to exploit such computing power embodied in the physical body for practical, robotic operations. This study provides a strategic framework for harvesting computing power from soft robots and functional materials, demonstrating how design parameters and input selection can be configured based on computing task requirements. Extending this framework to bio-inspired adaptive materials, prosthetics, and self-adaptive soft robotic systems could enable next-generation embodied intelligence, where the physical structure can compute and interact with their digital counterparts.

物理计算软体机器人具身智能感知

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