Title :
Robust regulation of mobile robots with dynamic based on uncalibrated visual servoing
Author :
Gang Wang ; Chaoli Wang ; Qinghui Du
Author_Institution :
Dept. of Control Sci. & Eng., Univ. of Shanghai for Sci. & Technol., Shanghai, China
Abstract :
This paper considers the problem of the regulation of nonholonomic wheeled mobile robots with dynamic based on uncalibrated visual servoing. First, the desired virtual velocity is designed to stabilize the kinematic model exponentially. And then the method of computed-torque is introduced for the dynamic model associated with uncertain disturbances to design the torque controller which could let the actual velocity track the desired one in finite time. The stability of the proposed method is proved rigorously. Simulation results confirm the effectiveness of the proposed methods.
Keywords :
mobile robots; robot dynamics; robot kinematics; robot vision; stability; torque control; visual servoing; wheels; computed-torque method; kinematic model stabilization; nonholonomic wheeled mobile robot dynamics; robust regulation; torque controller design; uncalibrated visual servoing; uncertain disturbances; virtual velocity; Cameras; Equations; Kinematics; Mobile robots; Robot kinematics; Robot vision systems; Dynamic; Nonholonomic; Regulation; Visual servoing;
Conference_Titel :
Intelligent Control and Automation (WCICA), 2014 11th World Congress on
DOI :
10.1109/WCICA.2014.7052725