Journal of System Simulation ›› 2020, Vol. 32 ›› Issue (10): 1997-2009.doi: 10.16182/j.issn1004731x.joss.2020-FZ0337E

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Visual Feedback Fuzzy Control for a Robot Manipulator Based on SVR Learning

Zhang Xianxia, Zhang Jinqiang, Li Zhiyuan, Ma Shiwei, Yang Banghua   

  1. School of Mechatronics and Automation, Shanghai University, Shanghai 200444, China
  • Received:2020-04-20 Revised:2020-06-11 Online:2020-10-18 Published:2020-10-14
  • About author:Zhang Xianxia (1975-), female, Shandong, Ph.D, associate professor, research direction is vision based robot control, intelligent control and modeling for complex system; Zhang Jinqiang (1992-), male, Anhui, M.S., research direction is vision based robot control.
  • Supported by:
    National Defense Basic Scientific Research Program of China (JCKY2017413C002)

Abstract: A fuzzy controller based on SVR learning is proposed for uncalibrated robot visual servoing. In this paper, a fuzzy controller is used to directly construct the nonlinear mapping between image features and robot joint motion. The fuzzy basis function of the fuzzy controller is taken as the kernel function of an SVR and the equivalent relationship between the SVR and the fuzzy controller is established. The learned support vector from the SVR is used as the rule of the fuzzy controller. Since all rules are learned from the data, there is no need to manually design the rules. The proposed method fully utilizes the good generalization ability of SVR in small sample learning, and the experimental results show that the proposed visual servoing controller has good performance in precision and convergence.

Key words: visual servoing, robot, fuzzy control, SVR

CLC Number: