吉林大学学报(信息科学版) ›› 2020, Vol. 38 ›› Issue (6): 669-674.

• • 上一篇    下一篇

基于无穷范数的视觉伺服自适应控制方法

罗永超1, 李石朋2, 李 迪2   

  1. 1. 华南理工大学广州学院 电气工程学院, 广州 510800; 2. 华南理工大学 机械工程学院, 广州 510006
  • 收稿日期:2020-09-17 出版日期:2020-11-24 发布日期:2020-12-14
  • 作者简介:罗永超(1985— ), 男, 河南平顶山人, 华南理工大学广州学院讲师, 主要从事图像处理、 机器人视觉伺服研究,(Tel)86-13533898971(E-mail)luoyc@ gcu. edu. cn; 李迪(1965— ), 女, 山东青岛人, 华南理工大学教授, 博士生导师,主要从事机器人控制器、 先进制造和系统控制研究, (Tel)86-13178838821(E-mail)itdili@ scut. edu. cn
  • 基金资助:
    国家重点研发计划基金资助项目(2018YFB1700500); 广东省科技计划基金资助项目(2017B090914002)

Vision Servo Adaptive Control Method Based on Infinite Norm

LUO Yongchao1, LI Shipeng2, LI Di2#br# #br#   

  1. 1. School of Electrical Engineering, Guangzhou College of South China University of Technology, Guangzhou 510800, China;
    2. College of Mechanical Engineering, South China University of Technology, Guangzhou 510006, China
  • Received:2020-09-17 Online:2020-11-24 Published:2020-12-14

摘要: 针对基于视觉的机器人伺服过程中, 控制系统的精度和稳定性容易受到环境噪声、 设备性能等因素影响, 导致收敛指标不理想的问题, 提出一种基于无穷范数优化任务序列( INOTS: Infinite Norm Optimization Task Sequence)的自适应增益算法, 通过将实时全局任务细化为不同子任务, 根据不同时刻子任务的特点自动配置增益。 仿真结果表明, 相比于固定增益及传统自适应增益调节算法, 该增益算法可有效提高系统响应速度,增强控制系统的抗干扰能力, 提高系统稳定性。

关键词: 自适应控制, 视觉伺服, 无穷范数, 机器人精度及稳定性

Abstract: Aiming at the problem that the accuracy and stability of the control system are easily affected byenvironmental noise, equipment performance and other factors in the process of robot vision servo, an adaptive gain algorithm based on infinite norm optimization task sequence ( INOTS: Infinite Norm Optimization Task Sequence) is proposed. By dividing the real-time global task into different subtasks, the gain is automatically configured according to the characteristics of the subtask at different times. The simulation results indicate that compared to the fixed gain and the traditional adaptive gain adjustment algorithm, the proposed gain algorithm can improve the response speed of the system effectively, enhance the anti-interference ability of the control system, and improve the anti-interference ability of the control system.

Key words: adaptive control, visual servo, infinite norm, robot accuracy and stability

中图分类号: 

  • TP242