Robust Tube-Based Predictive Control for Visual Servoing of Constrained Differential-Drive Mobile Robots

This paper proposes a control strategy for the vision-based control problem of a nonholonomic constrained differential-drive mobile robots with bounded disturbance by using robust tube-based model predictive control (MPC) method. The proposed control strategy mainly consists of an ancillary state fe...

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Bibliographic Details
Published in:IEEE transactions on industrial electronics (1982) 2018-04, Vol.65 (4), p.3437-3446
Main Authors: Ke, Fan, Li, Zhijun, Yang, Chenguang
Format: Article
Language:English
Subjects:
Cameras
Control systems
Controllers
Feedback control
Gain scheduling
Image-based servoing
Kinematics
Mobile robots
neural network optimization
Neural networks
Optimization
Pole placement
Predictive control
Quadratic programming
Robot kinematics
Robot vision systems
Robots
Robust control
Robustness
Servocontrol
State feedback
State variable
tuber-based model predictive control
Visual control
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Summary:This paper proposes a control strategy for the vision-based control problem of a nonholonomic constrained differential-drive mobile robots with bounded disturbance by using robust tube-based model predictive control (MPC) method. The proposed control strategy mainly consists of an ancillary state feedback controller and an MPC control for a nominal robotic system. First, the state-error kinematics of the nominal system is converted into a chained form system, and then its MPC optimization is computed to deal with a quadratic programming optimization problem by integrating a linear variable inequality-based primal-dual neural network (LVI-PDNN). Next, the gain scheduling of the ancillary state feedback is obtained via solving robust pole assignment using LVI-PDNN. An optimal state trajectory is thus generated for the nominal robotic system by the MPC without various uncertainties, the ancillary state feedback control forces the state variables to be constrained within an invariant designed tube. Finally, extensive experimental results on stabilization control of the nonholonomic mobile robot are provided to verify the effectiveness of the proposed robust tube-based MPC.
ISSN:0278-0046
1557-9948
DOI:10.1109/TIE.2017.2756595