arXiv:2603.15152cs.RO2026-03被引 4

通过高低层协同控制,提升机器人精细操作的触觉感知与力控稳定性。

Master Micro Residual Correction with Adaptive Tactile Fusion and Force-Mixed Control for Contact-Rich Manipulation

  • 高层用扩散模型生成动作块,低层实时修正,结合视觉触觉自适应融合。
  • 60Hz微调补偿+力混合控制,芯片抓取无损成功率93%,力调节更稳定。
  • 适合需要高精度接触操作的任务,如精密插入、易碎品抓取。

由于交互动力学复杂且多时序控制需求冲突,机器人在接触丰富、精细的操作中仍面临挑战。现有视觉模仿学习方法虽擅长长程规划,但难以感知摩擦变化或滑移前兆,难兼顾全局任务连贯性与局部反应反馈。为此,我们提出M2-ResiPolicy,一种主-微残差控制架构,融合高层动作引导与底层实时修正。主指导策略(MGP)以10 Hz运行,基于扩散模型生成时间一致的动作块,并采用触觉强度驱动的自适应融合机制动态调节视觉与触觉权重。同时,高频(60 Hz)微残差校正器(MRC)利用轻量GRU根据TCP力矩反馈提供实时动作补偿。该策略进一步集成力混合PBIC执行层,有效调控接触力以确保交互安全。在脆弱物体抓取与精确定位等挑战性任务中的实验表明,M2-ResiPolicy显著优于标准扩散策略(DP)和先进反应式扩散策略(RDP),在芯片抓取任务中实现93%无损成功率,力控稳定性更优。

原文摘要 · Abstract (English)

Robotic contact-rich and fine-grained manipulation remains a significant challenge due to complex interaction dynamics and the competing requirements of multi-timescale control. While current visual imitation learning methods excel at long-horizon planning, they often fail to perceive critical interaction cues like friction variations or incipient slip, and struggle to balance global task coherence with local reactive feedback. To address these challenges, we propose M2-ResiPolicy, a novel Master-Micro residual control architecture that synergizes high-level action guidance with low-level correction. The framework consists of a Master-Guidance Policy (MGP) operating at 10 Hz, which generates temporally consistent action chunks via a diffusion-based backbone and employs a tactile-intensity-driven adaptive fusion mechanism to dynamically modulate perceptual weights between vision and touch. Simultaneously, a high-frequency (60 Hz) Micro-Residual Corrector (MRC) utilizes a lightweight GRU to provide real-time action compensation based on TCP wrench feedback. This policy is further integrated with a force-mixed PBIC execution layer, effectively regulating contact forces to ensure interaction safety. Experiments across several demanding tasks including fragile object grasping and precision insertion, demonstrate that M2-ResiPolicy significantly outperforms standard Diffusion Policy (DP) and state-of-the-art Reactive Diffusion Policy (RDP), achieving a 93\% damage-free success rate in chip grasping and superior force regulation stability.

机器人操控触觉融合力控扩散模型

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