arXiv:2603.10352cs.RO2026-03被引 1

用可调势能模型实现工具操作中触觉感知与动作的闭环控制。

Adaptive Manipulation Potential and Haptic Estimation for Tool-Mediated Interaction

  • 提出参数化平衡流形,融合触觉估计与在线规划。
  • 260次真实拧螺丝实验中成功率高且抗干扰强。
  • 适合机器人精密装配与触觉反馈敏感场景使用。

由于视觉遮挡和触觉感知的不确定性,实现工具操作中的类人灵巧性仍具挑战。本文引入参数化的平衡流形(EM)作为统一表征,构建闭合回路框架,集成触觉估计、在线规划与自适应刚度控制。通过可微接触模型建立物理-几何对偶性,使复杂物理交互转化为在EM上的连续操作。将触觉估计重构为流形参数估计问题,采用混合推断策略(触觉SLAM):粒子滤波分类离散物体形状,解析梯度优化连续位姿估计。通过持续更新操纵势能参数,动态重构诱导的EM,指导在线轨迹重规划并实现不确定性感知的阻抗控制,从而闭合感知-动作环。系统在仿真和超过260次真实拧螺丝试验中验证,标准场景下识别与操作鲁棒成功,且保持精确跟踪。消融实验证明,触觉SLAM与不确定性感知刚度调节优于固定阻抗基线,有效防止紧公差交互中的卡死现象。

原文摘要 · Abstract (English)

Achieving human-level dexterity in contact-rich, tool-mediated manipulation remains a significant challenge due to visual occlusion and the underdetermined nature of haptic sensing. This paper introduces a parameterized Equilibrium Manifold (EM) as a unified representation for tool-mediated interaction, and develops a closed-loop framework that integrates haptic estimation, online planning, and adaptive stiffness control. We establish a physical-geometric duality using an adaptive manipulation potential incorporating a differentiable contact model, which induces the manifold's geometric structure and ensures that complex physical interactions are encapsulated as continuous operations on the EM. Within this framework, we reformulate haptic estimation as a manifold parameter estimation problem. Specifically, a hybrid inference strategy (haptic SLAM) is employed in which discrete object shapes are classified via particle filtering, while the continuous object pose is estimated using analytical gradients for efficient optimization. By continuously updating the parameters of the manipulation potential, the framework dynamically reshapes the induced EM to guide online trajectory replanning and implement uncertainty-aware impedance control, thereby closing the perception-action loop. The system is validated through simulation and over 260 real-world screw-loosening trials. Experimental results demonstrate robust identification and manipulation success in standard scenarios while maintaining accurate tracking. Furthermore, ablation studies confirm that haptic SLAM and uncertainty-aware stiffness modulation outperform fixed impedance baselines, effectively preventing jamming during tight tolerance interactions.

机器人操作触觉感知自适应控制

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