Coordinated Control and Range Imaging for Mobile Manipulation
Mobile manipulators currently deployed for explosive ordinance disposal are typically controlled via crude forms of teleoperation.Manipulator joints are actuated individually in joint space, making precise motions in state space difficult. Scene understanding is limited, as monocular cameras provide little (if any) depth information. Furthermore, the operator must manually coordinate the manipulator articulation with the positioning of the mobile base. These limitations place greater demands on the operator, decrease task efficiency and can increase exposure in dangerous environments.
In this paper, we demonstrate several enabling technologies for interacting with and operating mobile manipulators, including a “click-and-grab” interface for coordinated motion and manipulation. This includes coordinated joint movement for end-effector position control, a flash LADAR to provide depth information, and automatic trajectory generation to autonomously position the mobile base and manipulator.
KeywordsMobile Manipulator Range Image Trajectory Generation Motion Planner Vehicle Position
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- 2.Carriker, W., Khosla, P., Krogh, B.: Path planning for mobile manipulators for multiple task execution. IEEE Transactions on Robotics and Automation, 403–408 (1991)Google Scholar
- 3.Desai, J., Kumar, V.: Nonholonomic motion planning for multiple mobile manipulators (1997), http://citeseer.ist.psu.edu/desai97nonholonomic.html
- 8.Möller, T., Kraft, H., Frey, J., Albrech, M., Lange, R.: Robust 3D measurement with pmd sensors. In: Proceedings of the First Range Imaging Research Dat at ETH Zurich (2005) ISBN 3-906467-57-0Google Scholar
- 9.Sciavicco, L., Sciliano, B.: Modeling and Control of Robot Manipulators. Springer, Heidelberg (2000)Google Scholar
- 11.Snyder, R.G.: Robots assist in search and rescue efforts at wtc. IEEE Robotics and Automation Magazine, 26–28 (2001)Google Scholar