arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2006.03537cs.RO
收藏

一种具有手指内视觉感知的柔性仿人手

A Soft Humanoid Hand with In-Finger Visual Perception

Institute for Anthropomatics and Robotics, Karlsruhe Institute of Technology(卡尔斯鲁厄理工学院拟人技术与机器人研究所)

Felix Hundhausen, Julia Starke, Tamim Asfour

摘要:

我们提出了一种新颖的欠驱动仿人五指软手,KIT \softhand,它配备了摄像头的指尖,并集成了一个高性能的嵌入式系统的视觉处理和控制。我们描述了手的驱动机制和肌腱驱动的软手指设计与内部路由的高带宽扁平柔性电缆。为了有效地并行处理来自每个指尖的摄像头的视觉数据,我们提出了一种混合嵌入式架构,由现场可编程逻辑阵列(FPGA)和微控制器,允许实现基于卷积神经网络的视觉对象分割。我们通过用一个手指进行耐久性实验来评估手的设计,并在抓力、速度和抓持成功率方面量化抓持性能。结果表明,手表现出31.8 N的抓地力和机械耐久性的手指超过15.000关闭周期。最后,我们使用五个不同的对象在不同阶段的把握过程中,评估视觉对象分割的准确性。因此,可以实现90%以上的准确度。

英文摘要:

We present a novel underactued humanoid five finger soft hand, the KIT \softhand, which is equipped with cameras in the fingertips and integrates a high performance embedded system for visual processing and control. We describe the actuation mechanism of the hand and the tendon-driven soft finger design with internally routed high-bandwidth flat-flex cables. For efficient on-board parallel processing of visual data from the cameras in each fingertip, we present a hybrid embedded architecture consisting of a field programmable logic array (FPGA) and a microcontroller that allows the realization of visual object segmentation based on convolutional neural networks. We evaluate the hand design by conducting durability experiments with one finger and quantify the grasp performance in terms of grasping force, speed and grasp success. The results show that the hand exhibits a grasp force of 31.8 N and a mechanical durability of the finger of more than 15.000 closing cycles. Finally, we evaluate the accuracy of visual object segmentation during the different phases of the grasping process using five different objects. Hereby, an accuracy above 90 % can be achieved.

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。

↑