매니퓰레이터의 조립작업을 위한 비젼시스템 모델 개발

Development of Vision System Model for Manipulator's Assemble task

  • 장완식 (조선대학교 기계공학과(수송기계부품공장자동화연구센터))
  • 발행 : 1997.06.01

초록

This paper presents the development of real-time estimation and control details for a computer vision-based robot control method. This is accomplished using a sequential estimation scheme that permits placement of these points in each of the two-dimensional image planes of monitoring cameras. Estimation model is developed based on a model that generalizes know 4-axis Scorbot manipulator kinematics to accommodate unknown relative camera position and orientation, etc. This model uses six uncertainty-of-view parameters estimated by the iteration method. The method is tested experimentally in two ways : First the validity of estimation model is tested by using the self-built test model. Second, the practicality of the presented control method is verified in performing 4-axis manipulator's assembly task. These results show that control scheme used is precise and robust. This feature can open the door to a range of application of multi-axis robot such as deburring and welding.

키워드

참고문헌

  1. Proc. 7th International Symposium on Industrial Robots High Precision Manipulator with Visual sense Tani, K.;Abe, M.;Ohno, T.
  2. Pattern Recognition v.5 Guiding a Robot by Visual Feedback in Assembling Tasks Shirae, Y.;Inoue, H.
  3. United States Patent 4,380,696 Method and Apparatus for Manipulator Welding Apparatus with Vision Correction for Workpiece Sensing Masaki, I.
  4. NASA Technical Paper 1819 Marking Parts to Aid Robot Vision Bales, J.;Barker, L.
  5. Celestial Mechanics v.10 Analytical Solutions for Euler Parameters Morton, H.;Junkins, J.;Blanton, J.
  6. An Introduction to Optimal Estimation of Dynamical System Junkins, J. L.