Computer Engineering and Applications ›› 2007, Vol. 43 ›› Issue (23): 211-214.

• 工程与应用 • Previous Articles     Next Articles

Non-time based immune path tracking control method of mobile robots

WANG Run-xiao1,DUAN Qing-juan2,DING Liang-hong1   

  1. 1.Northwestern Polytechnical University,Xi’an 710072,China
    2.Xidian University,Xi’an 710071,China
  • Received:1900-01-01 Revised:1900-01-01 Online:2007-08-11 Published:2007-08-11
  • Contact: WANG Run-xiao

移动机器人的免疫非时间参考路径跟踪控制

王润孝1,段清娟2,丁良宏1   

  1. 1.西北工业大学,西安 710072
    2.西安电子科技大学,西安 710071
  • 通讯作者: 王润孝

Abstract: Based on the regulation law of immunity feedback response in biology,a compound path tracking control method is proposed for the problem existing in the non-time based approach of mobile robots.It keeps the merit of non-time based approach.It is featured by fully considered mechanism of the robot and the request of motor torque,limits the peak-to-peak value when the error is bigger.Through selecting appropriate parameters,it can also reduce the system overshoot,further improve the performance of the entire control system,enhance tracking capabilities and self-adaptability in the uncertain environment.Simulation and experiment results demonstrate that the proposed method is effective and practical.

Key words: mobile robot, non-time based, path tracking, immune feedback controller

摘要: 针对移动机器人非时间参考控制方法的不足之处,借鉴生物免疫反馈响应过程的调节规律,提出了移动机器人的免疫非时间参考路径跟踪控制方法。该方法既有不依时间规划调节输出控制的特性,而且充分考虑到机器人机械结构与电机力矩特性的要求,实现了在误差较大时对控制量的限幅;通过选取合适参数,还能减小系统的超调量,进一步改善整个控制系统的性能。对于动态事件,采用插入算法,提高机器人对动态环境适应能力,使控制方法更适宜实际应用。仿真与实物实验,验证了该方法的有效性。

关键词: 移动机器人, 非时间参考, 路径跟踪, 免疫反馈控制