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基于环境吸引域的冗余机器人运动控制与实时位型优化
DOI:
作者:
作者单位:

1.广州民航职业技术学院;2.广东省科学院智能制造研究所

作者简介:

通讯作者:

中图分类号:

基金项目:

国家自然科学基金项目(面上项目,重点项目,重大项目)


Kinematic Control and Simultaneous Configuration Optimization for Redundant Robots based on Environmental Attractive Domain
Author:
Affiliation:

1.Guangzhou Civil Aviation College;2.Guangdong Institute of Intelligence Manufacturing

Fund Project:

The National Natural Science Foundation of China (General Program, Key Program, Major Research Plan)

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    摘要:

    针对人机共融场景中机器人任务快速变化、紧凑作业空间等导致机器人高性能运动控制困难的问题,提出一种基于环境吸引域的机器人运动控制与实时位型优化方法。为尽可能减小机器人本体的运动区域,采用两组关键点集对机器人本体与人类偏好的机器人作业区域进行抽象化表征,并提出基于点集距离的环境吸引域评价指标;设计笛卡尔空间运动控制器,并构造末端执行器跟踪误差收敛的关节角速度等式约束;结合关节角度、角速度等物理约束,建立了基于约束-优化的机器人运动控制与位型优化问题模型。设计递归神经网络对机器人的角速度指令进行实时求解,并证明了系统的稳定性。最后通过对7自由度Franka Panda机器人的仿真验证了所提算法的有效性。

    Abstract:

    Aiming at the difficulties of high-performance robot motion control caused by the challenges such as rapid change of robot tasks and compact working space in man-machine integration scenarios, a robot motion control and real-time configuration optimization method based on environment attraction domain was proposed. In order to reduce the moving area of the robot body as much as possible, two sets of key points are used to characterize the robot body and the robot operating area preferred by humans, and an evaluation index of the environment attraction area based on the distance of the point set is proposed. The Cartesian space motion controller is designed, and the joint angular velocity equality constraint of the end effector tracking error convergence is deduced. Combined with physical constraints such as joint Angle and angular velocity, a constrained optimization model for robot motion control and configuration optimization is constructed. A recurrent neural network is designed to solve the angular velocity instruction of the robot in real time, and the stability of the system is proved. Finally, the effectiveness of the proposed algorithm is verified by the simulation of the 7-DOF Franka Panda robot.

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  • 收稿日期:2023-08-29
  • 最后修改日期:2023-08-29
  • 录用日期:2023-09-14
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