arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2603.08142cs.RO
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人形机器人的多指力感知控制

Multifingered force-aware control for humanoid robots

Humanoid Sensing and Perception, Istituto Italiano di Tecnologia, Genoa, Italy(人机感知与感知,意大利技术研究院,热那亚,意大利);DIBRIS, Università di Genova, Via All’Opera Pia, 13, Genoa, Italy(DIBRIS,热那亚大学,Via All’Opera Pia, 13,热那亚,意大利);MESH Facility, Istituto Italiano di Tecnologia, Genoa, Italy(MESH设施,意大利技术研究院,热那亚,意大利)

Pasquale Marra, Gabriele M. Caddeo, Ugo Pattacini, Lorenzo Natale

AI总结:

提出一种基于力估计的多指手人形机器人控制方案,通过调整躯干、手臂、手腕和手指的运动重新分配力,以维持与物体的稳定接触,在平衡任务中成功率达82.7%。

摘要:

在本文中,我们研究了具有多指手的机器人平台中的力感知控制和力分配问题。给定目标以及来自触觉传感器的力估计,我们设计了一个控制器,能够调整躯干、手臂、手腕和手指的运动,重新分配力以维持与不同质量分布或不稳定接触的物体的稳定接触。为了估计力,我们使用五个Xela磁传感器与压头交互,收集触觉信号和地面真实力测量数据集,并训练力估计器。然后,我们引入一种基于模型的控制方案,该方案最小化压力中心(CoP)与指尖接触多边形质心之间的距离。由于我们的方法依赖于估计的力而非原始触觉信号,因此它有可能应用于任何能够进行力估计的传感器。我们在一个包含五个物体的平衡任务上验证了我们的框架,成功率达到82.7%,并在多物体场景中进一步评估,准确率达到80%。代码和数据可在此处找到:https://github.com/hsp-iit/multifingered-force-aware-control。

英文摘要:

In this paper, we address force-aware control and force distribution in robotic platforms with multi-fingered hands. Given a target goal and force estimates from tactile sensors, we design a controller that adapts the motion of the torso, arm, wrist, and fingers, redistributing forces to maintain stable contact with objects of varying mass distribution or unstable contacts. To estimate forces, we collect a dataset of tactile signals and ground-truth force measurements using five Xela magnetic sensors interacting with indenters, and train force estimators. We then introduce a model-based control scheme that minimizes the distance between the Center of Pressure (CoP) and the centroid of the fingertips contact polygon. Since our method relies on estimated forces rather than raw tactile signals, it has the potential to be applied to any sensor capable of force estimation. We validate our framework on a balancing task with five objects, achieving a $82.7\%$ success rate, and further evaluate it in multi-object scenarios, achieving $80\%$ accuracy. Code and data can be found here https://github.com/hsp-iit/multifingered-force-aware-control.

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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