arXiv:2605.28412cs.ROcs.LG2026-05中稿 · ICRA被引 1

融合触觉与本体感知,实现机器人全身接触力的高灵敏精准估计。

Tactile-Proprioceptive Sensor Fusion for Contact Wrench Estimation in Whole-Body Physical Human-Robot Interaction

论文配图:Tactile-Proprioceptive Sensor Fusion for Contact Wrench Estimation in Whole-Body Physical Human-Robot Interaction
图 1 · 摘自论文原文
  • 用气动皮肤触觉信号结合电机电流本体感知,融合估计多轴接触力。
  • 在静止接触下实现多轴力重建,在运动中仍保持响应平滑可靠。
  • 适合需要自然物理交互的机器人教学与人机协作场景。

直接物理引导是人与机器人自然交互和教学的有效方式,机器人皮肤通过敏感的接触传感与定位发挥关键作用。本文提出一种触觉-本体感知融合框架,用于实现全身式物理人机交互中的接触力估计。气动皮肤垫提供的触觉线索可绕过摩擦残留与外力之间的模糊性,无需显式识别摩擦即可实现高灵敏度接触检测。将这些触觉信号与基于电机电流的本体感知信息融合,重建机器人表面的多轴接触力。为保证运动过程中的精度,采用时间卷积网络(TCN)缓解粘滑过渡时的摩擦迟滞效应,降低接触起始时的不确定性,实现平滑、响应迅速的引导。在集成皮肤的机械臂上验证了该方法:(i)在静止接触中成功重构多轴力;(ii)实现了力估计与动力学教学的同步演示。结果表明,在多种接触条件下,其灵敏度与响应性均优于仅使用触觉或仅使用本体感知的基线方案,验证了触觉-本体感知融合在安全、直观的人机交互中的可靠性。

原文摘要 · Abstract (English)

Direct physical guidance is a natural means of teaching and interacting with robots, and robotic skins make a key contribution by enabling sensitive contact sensing and localization. This paper presents a tactile-proprioceptive sensor fusion framework for natural physical human-robot interaction. Tactile cues from pneumatic skin pads serve as contact indicators that bypass the ambiguity between frictional residues and applied external forces, enabling highly sensitive contact detection without explicit friction identification. We fuse these cues with motor-current-based proprioception to reconstruct multi-axis contact forces on the robot surface. To maintain accuracy during motion, we employ a temporal convolutional network (TCN) to mitigate friction hysteresis during stick-slip transitions, reducing uncertainty at contact onset and yielding smooth, responsive guidance. We validate the approach on a skin-integrated robot arm: (i) multi-axis forces are reconstructed in stationary contacts, and (ii) simultaneous force estimation and kinesthetic teaching are demonstrated. Results indicate improved sensitivity and responsiveness across diverse contact conditions compared with tactile-only and proprioceptive-only baselines, supporting tactile-proprioceptive fusion as a reliable pathway to safe, intuitive physical human-robot interaction.

触觉感知人机交互力估计传感器融合

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