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二阶锥约束规划的机器人视觉闭环位姿自协调方法

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将机器人"手-眼"位姿自协调视为无标定约束规划问题,提出一种基于二阶锥约束规划的视觉闭环控制方法.在图像平面和笛卡儿空间分别建立基于图像与基于位姿的视觉伺服控制算法;在路径约束和局部极小约束准则下构建二阶锥凸优化模型,实现了图像特征轨迹和机器人运动路径折中最优;将所提出的二阶锥约束规划模型嵌入自适应状态估计器,实现了机器人雅可比矩阵在线映射学习,解决了"手-眼"标定参数和视觉深度信息未知问题;最后通过无标定机器人视觉定位证明了二阶锥约束规划模型的有效性,真实环境抓取操作表明了机器人位姿自协调控制的可行性.
Robot Vision Closed-loop Pose Autonomous Coordination Method with Second-order Cone Constrained Programming
A robot"hand-eye"pose autonomous coordination was regarded as a uncalibration con-strained programming problem,and a visual closed-loop control method was proposed based on sec-ond-order cone constrained programming.Firstly,the visual servoing control algorithms were con-structed in the image planes and Cartesian space,respectively based on images and positions.After that,by established the path constraint and the local minimal constraint rules,and a second-order cone convex optimization model was constructed to realize the compromise optimal control of image feature trajectory and robot motion path.Moreover,the proposed second-order cone constrained pro-gramming model was embedded with an adaptive state estimator,to realize robotic Jacobian matrix online mapping learning,and to solve the unknown problems of"hand-eye"calibration parameters and visual depth information.Finally,the uncalibrated robot visual positioning experiments prove the ef-fectiveness of the convex optimization planning model,and the real grasping tasks illustrate the feasi-bility of the robot pose autonomous coordination.

pose coordinationconstrained programminguncalibration visual servoinghybrid closed-loop feedback control

仲训杲、罗家国、田军、仲训昱、彭侠夫、刘强

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厦门理工学院电气工程与自动化学院,厦门,361024

厦门市高端电力装备及智能控制重点实验室,厦门,361024

厦门大学航空航天学院,厦门,361005

布里斯托大学工程数学与技术学院,布里斯托,BS8 1TW

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位姿协调 约束规划 无标定视觉伺服 混合闭环反馈控制

国家自然科学基金福建省自然科学基金

617033562022J011256

2024

中国机械工程
中国机械工程学会

中国机械工程

CSTPCD北大核心
影响因子:0.678
ISSN:1004-132X
年,卷(期):2024.35(6)