吴聊, 杨向东, 蓝善清, 陈恳. 基于平面模板的机器人TCF标定[J]. 机器人, 2012, 34(1): 98-103..
WU Liao, YANG Xiangdong, LAN Shanqing, CHEN Ken. Robotic TCF Calibration Based on a Planar Template. ROBOT, 2012, 34(1): 98-103..
摘要针对末端夹持激光位移传感器的机器人TCF(tool/terminal control frame)标定,提出一种基于平面模扳的标定方法,机器人操作末端执行器使激光位移传感器在不同位形下对平面模板进行测量,再通过非线性最小.乘拟合求解标定参数.为了减小问题的奇异性,对标定时应该采取的参数控制策略进行了定性分析.该标定方法只需要一块表面精度较高的平面模板,而无需其它测量仪器,标定过程简单、易操作,且易于实现自动己.仿真和实验结果表明本文提出的标定方法具有较高的精度.
Abstract:For the TCF(tool/terminal control frame) calibration of a robot holding a LDS(laser displacement sensor),a method based on a planar template is proposed.The robot is required to operate its end-effector so that the LDS measures the planar template at different configurations.Then the calibration parameters are solved by nonlinear least square fitting.To reduce the singularity of the problem,the parameter-control strategy during the calibration is qualitatively analyzed.Except for a planar template with high surface accuracy,no extra measurement equipments are needed.The calibration process is simple and easy for operation and automatization.Simulation and experiment results show that the method presented in this paper has high accuracy.
[1] 宋月娥,吴林,田劲松,等.用于机器人离线编程的工件标定算法研究[J].哈尔滨工业大学学报,2002,34(6):735-738.Song Y E,Wu L,Tian J S,et al.Part calibration algorithm used for robotic off-line programming[J].Journal of Harbin Institute of Technology,2002,34(6):735-738.
[2] Wang X G,Red E.Robotic TCF and rigid-body calibration methods[J].Robotica,1997,15(6):633-644.
[3] 朴永杰,邱涛,陈善本.弧焊机器人TCF参数的标定[J].机器人,2001,23(2):109-112.Piao Y J,Qiu T,Chen S B.Calibration of TCF parameters of arc welding robot[J].Robot,2001,23(2):109-112.
[4] Tsai R Y,Lenz R K.A new technique for fully autonomous and efficient 3D robotics hand/eye calibration[J].IEEE Transactions on Robotics and Automation,1989,5(3):345-358.
[5] Shiu Y C,Ahmad S.Calibration of wrist-mounted robotic sensors by solving homogeneous transform equations of the form AX=XB[J].IEEE Transactions on Robotics and Automation,1989,5(1):16-29.
[6] Park F C,Martin B J.Robot sensor calibration: Solving AX=XB on the Euclidean group[J].IEEE Transactions on Robotics and Automation,1994,10(5):717-721.
[7] Zhuang H Q,Roth Z S,Sudhakar R.Simultaneous robot/world and tool/flange calibration by solving homogeneous transformation equations of the form AX=YB[J].IEEE Transactions on Robotics and Automation,1994,10(4):549-554.
[8] Domaika F,Horaud R.Simultaneous robot-world and hand-eye calibration[J].IEEE Transactions on Robotics and Automation,1998,14(4):617-622.
[9] Ma S D.A self-calibration technique for active vision systems[J].IEEE Transactions on Robotics and Automation,1996,12(1):114-120.
[10] 杨广林,孔令富,王洁.一种新的机器人手眼关系标定方法[J].机器人,2006,28(4):400-405.Yang G L,Kong L F.Wang J.A new calibration approach to hand-eye relation of manipulator[J].Robot,2006,28(4):400-405.
[11] 许海霞,王耀南,万琴,等.一种机器人手眼关系自标定方法[J].机器人,2008,30(4):373-378.Xu H X,Wang Y N,Wan Q,et al.A self-calibration approach to hand-eye relation of robot[J].Robot,2008,30(4):373-378.
[12] 王胜华,都东,张文增,等.机器人定点变位姿手-眼标定方法[J] 清华大学学报:自然科学版,2007,47(2):165-168.Wang S H,Du D,Zhang W Z,et al.Hand-eye calibration for the robot by measuring a fixed point from different poses[J].Journal of Tsinghua University:Science and Technology,2007,47(2):165-168.
[13] 孙文瑜,徐成贤,朱德通.最优化方法[M].北京:高等教育出版社,2004:191-193.Sun W Y,Xu C X,Zhu D T.Optimization methods[M].Beijing:Higher Education Press,2004:191-193.