用摄像头嵌入吸盘实现复杂表面高精度触觉感知与稳定吸附
SuckTac: Camera-based Tactile Sucker for Unstructured Surface Perception and Interaction
- 将摄像头和光源嵌入优化结构吸盘,实现表面形貌、纹理的原位高密度感知
- 在布料抓取和软体机器人巡检任务中表现优异,适应不规则表面
- 仿章鱼吸盘设计,兼具柔性唇边和微结构,提升吸附鲁棒性
吸盘对机器人在各类表面上进行抓取、转移、操作和运动至关重要。然而,现有吸盘普遍缺乏高保真感知与触觉能力,难以识别目标表面的精细几何特征及交互状态,限制了其在不规则物体和复杂非结构化环境中的鲁棒表现。受头足类动物吸盘自适应结构与高性能感知能力启发,本文提出一种新型智能吸盘 SuckTac,将基于相机的触觉传感器直接集成于优化结构中,实现高密度感知与强吸附。通过多材料一体化浇筑工艺,将摄像头与光源嵌入吸盘内部,可原位获取表面形状、纹理和粗糙度等细粒度信息。为增强鲁棒性与适应性,还优化了吸盘轮廓,添加柔性唇边,并引入表面微结构。大量实验,包括机器人布料操作和软体移动机器人巡检等挑战性任务,验证了该系统性能优越且适用范围广泛。
原文摘要 · Abstract (English)
Suckers are significant for robots in picking, transferring, manipulation and locomotion on diverse surfaces. However, most of the existing suckers lack high-fidelity perceptual and tactile sensing, which impedes them from resolving the fine-grained geometric features and interaction status of the target surface. This limits their robust performance with irregular objects and in complex, unstructured environments. Inspired by the adaptive structure and high-performance sensory capabilities of cephalopod suckers, in this paper, we propose a novel, intelligent sucker, named SuckTac, that integrates a camera-based tactile sensor directly within its optimized structure to provide high-density perception and robust suction. Specifically, through joint structure design and optimization and based on a multi-material integrated casting technique, a camera and light source are embedded into the sucker, which enables in-situ, high-density perception of fine details like surface shape, texture and roughness. To further enhance robustness and adaptability, the sucker's mechanical design is also optimized by refining its profile, adding a compliant lip, and incorporating surface microstructure. Extensive experiments, including challenging tasks such as robotic cloth manipulation and soft mobile robot inspection, demonstrate the superior performance and broad applicability of the proposed system.
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