A Study on Visual Servoing Application for Robot OLP Compensation

로봇 OLP 보상을 위한 시각 서보잉 응용에 관한 연구

  • 김진대 (영남대학교 대학원 기계공학과) ;
  • 신찬배 (울산과학대학 디지털 기계학부) ;
  • 이재원 (영남대학교 기계공학부)
  • Published : 2004.04.01

Abstract

It is necessary to improve the exactness and adaptation of the working environment in the intelligent robot system. The vision sensor have been studied for this reason fur a long time. However, it is very difficult to perform the camera and robot calibrations because the three dimensional reconstruction and many processes are required for the real usages. This paper suggests the image based visual servoing to solve the problem of old calibration technique and supports OLP(Off-Line-Programming) path compensation. Virtual camera can be modeled from the real factors and virtual images obtained from virtual camera gives more easy perception process. Also, Initial path generated from OLP could be compensated by the pixel level acquired from the real and virtual, respectively. Consequently, the proposed visually assisted OLP teaching remove the calibration and reconstruction process in real working space. With a virtual simulation, the better performance is observed and the robot path error is calibrated by the image differences.

Keywords

References

  1. Puskorius, G. V., Feldkamp, L. A., 'Global calibration of a robot/vision system,' IEEE International Conference, Vol. 4, pp.190-195, 1987
  2. Ahn, C. K., Lee, M. C, 'An off-line automatic teaching by vision information for robotic assembly task,' 26th Annual Conference of the IEEE, Vol. 3, pp.2171-2176, 2000
  3. Gangloff, J. A., Mathelin, M. F., 'Visual servoing of a 6-DOF manipulator for unknown 3-d profile following,' IEEE Transactions, Vol. 18, pp.511-520, 2002 https://doi.org/10.1109/TRA.2002.802201
  4. Han, S. H., Choi, J. W., Lee, M. C, Lee, J. M., 'A study on feature-based visual servoing system of intelligent robot system by utilizing redundant feature,' Proceedings of the IEEE International Symposium, Vol. 2, pp. 552-558, 2000 https://doi.org/10.1109/ISIE.2000.930357
  5. Kim, J. D., Cho, Y. S., Lee, J. W., 'A stability study on visual servoing using dynamic calibration,' Korea Society of Pricison Eengineering Vol. 20, No. 10, pp. 82-88, 2003
  6. Abdel-Aziz, Y. I., 'Direct linear transformation into object space coordinates in close-range photogrammetry,' American Society of Photo grammetry, pp. 1-18, 1971
  7. Whiteney, D. E., 'Resolved motion rate control of manipulators and human prostheses,' IEEE Trans. Man-Mach. Syst., Vol. MMS-10, pp.47-53, 1969 https://doi.org/10.1109/TMMS.1969.299896
  8. Nakamura, Y., Hanafusa, H., 'Inverse kinematic solutions with singularity robustness for robot manipulator control,' J. of Dynamic Sys., Meas., and Control, Vol. 108, pp.163-171, 1986 https://doi.org/10.1115/1.3143764
  9. Chung, W. J., 'Kinematic and dynamic control of redundant manipulators,' Ph.D. paper, Departmnet of Mechanical engineering Pohang Institute of Secience & Technology, 1992