Vision-Based Motion Control for an 8-DOF Robotic Mobile Manipulator

This paper introduces a visual servoing control strategy designed for a vision-based robotic mobile manipulation system. The system continuously updates the motion of both the mobile base and its integrated manipulator by utilizing visual feedback from a stereo camera. A detailed description of the system components is provided, including the mobile robot, the robotic manipulator, and the stereo vision system, along with the design of a visual servoing controller grounded in Lyapunov's stability theory. The controller operates by adjusting the movements of the mobile base and manipulator to minimize the disparity between the current and desired pose, ultimately guiding the system to achieve the target position and orientation. To validate the kinematic model and assess the performance of the proposed control strategy, experiments were conducted using the Husky mobile robot in conjunction with a 6-DOF UR5 robotic manipulator. The results from these experiments substantiate the effectiveness and robustness of both the robot model and the implemented control law. These findings confirm the potential of the proposed system in achieving reliable and precise mobile manipulation tasks.