TY - GEN
T1 - Rapid robot/workcell calibration using line-based approach
AU - Liu, Yong
AU - Shen, Yantao
AU - Xi, Ning
AU - Yang, Ruiguo
AU - Li, Xiongzi
AU - Zhang, George
AU - Fuhlbrigge, Thomas A.
PY - 2008
Y1 - 2008
N2 - This paper presents a new line-based calibration method for automatically computing the transformation relationship between industrial robots and workcell. The calibration method mainly depends on the position-sensitive detector (PSD) servo control of the robots. The developed servo controller allows precisely positioning the laser beam (line) from a single laser pointer attached at the end-effector of robot onto the center of the PSD in a well-designed lateral-effect PSDs fixture. The selected PSD in the fixture has high performance with the resolution of 0.5μ. Once the precision localizations/positioning in the centers of multiple PSDs are achieved, the group of points in the robot base frame and workcell frame can be generated by using the intersection of laser beams (lines) and by using the predefined fixture-workcell information, respectively. A quaternion algorithm and the least square method are then employed to determine the transformation relationship between robot base frame and workcell frame. The experiments have been implemented on an ABB industrial robot IRB1600, the results verify the effectiveness of both the PSD servoing and the line-based calibration method as well as demonstrate the performance of the whole system.
AB - This paper presents a new line-based calibration method for automatically computing the transformation relationship between industrial robots and workcell. The calibration method mainly depends on the position-sensitive detector (PSD) servo control of the robots. The developed servo controller allows precisely positioning the laser beam (line) from a single laser pointer attached at the end-effector of robot onto the center of the PSD in a well-designed lateral-effect PSDs fixture. The selected PSD in the fixture has high performance with the resolution of 0.5μ. Once the precision localizations/positioning in the centers of multiple PSDs are achieved, the group of points in the robot base frame and workcell frame can be generated by using the intersection of laser beams (lines) and by using the predefined fixture-workcell information, respectively. A quaternion algorithm and the least square method are then employed to determine the transformation relationship between robot base frame and workcell frame. The experiments have been implemented on an ABB industrial robot IRB1600, the results verify the effectiveness of both the PSD servoing and the line-based calibration method as well as demonstrate the performance of the whole system.
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U2 - 10.1109/COASE.2008.4626550
DO - 10.1109/COASE.2008.4626550
M3 - Conference contribution
AN - SCOPUS:54949148417
SN - 9781424420230
T3 - 4th IEEE Conference on Automation Science and Engineering, CASE 2008
SP - 510
EP - 515
BT - 4th IEEE Conference on Automation Science and Engineering, CASE 2008
T2 - 4th IEEE Conference on Automation Science and Engineering, CASE 2008
Y2 - 23 August 2008 through 26 August 2008
ER -