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Dynamic Workspace Control of Underwater Manipulator Considering ROV Motion

ROV의 운동이 고려된 수중 로봇팔의 동적 작업공간 구동 제어

  • 심형원 (한국해양연구원 해양시스템연구부) ;
  • 전봉환 (한국해양연구원 해양시스템연구부) ;
  • 이판묵 (한국해양연구원 해양시스템연구부)
  • Received : 2011.02.20
  • Accepted : 2011.03.29
  • Published : 2011.05.01

Abstract

This paper presents a dynamic workspace control method of underwater manipulator considering a floating ROV (Remotely Operated vehicle) motion caused by sea wave. This method is necessary for the underwater work required linear motion control of a manipulator's end-effector mounted on a floating ROV in undersea. In the proposed method, the motion of ROV is modeled as nonlinear first-order differential equation excluded dynamic elements. For online manipulator control achievement, we develop the position tracking method based on sensor data and EKF (Extended Kalman Filter) and the input velocity compensation method. The dynamic workspace control method is established by applying these methods to differential inverse kinematics solution. For verification of the proposed method, experimental data based test of ROV position tracking and simulation of the proposed control method are performed, which is based on the specification of the KORDI deep-sea ROV Hemire.

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