Title :
Robust stabilization of nonholonomic mobile robots with uncalibrated camera parameters
Author :
Wang, Chaoli ; Liang, Zhenying ; Jia, Qingwei
Author_Institution :
Control Sci. & Eng. Dept., Univ. of Shanghai for Sci. & Technol., Shanghai, China
Abstract :
This paper investigates the visual servoing robust stabilization of nonholonomic mobile robots. A novel uncertain model of these nonholonomic kinematic systems is proposed. Based on this model, a stabilizing controller is discussed by using dynamic feedback and two-step techniques. The proposed robust controller makes the mobile robot image pose and the orientation converge to the desired configuration despite the lack of depth information and the lack of precise visual parameters. The stability of the closed loop system is rigorously proved. The simulation is given to show the effectiveness of the presented controllers.
Keywords :
cameras; closed loop systems; mobile robots; pose estimation; robot vision; robust control; visual servoing; camera parameters; closed loop system stability; dynamic feedback; mobile robot image pose; nonholonomic mobile robot; visual servoing robust stabilization; Cameras; Feedback; Image converters; Kinematics; Mobile robots; Robot vision systems; Robust control; Robustness; Stability; Visual servoing;
Conference_Titel :
Control and Automation (ICCA), 2010 8th IEEE International Conference on
Conference_Location :
Xiamen
Print_ISBN :
978-1-4244-5195-1
Electronic_ISBN :
1948-3449
DOI :
10.1109/ICCA.2010.5524368