Title :
Task-Space Synchronization of Networked Robotic Systems With Uncertain Kinematics and Dynamics
Author_Institution :
Sci. & Technol. on Space Intell. Control Lab., Beijing Inst. of Control Eng., Beijing, China
Abstract :
In this technical note, we investigate the task-space synchronization for networked robots interconnected on strongly connected graphs with both the uncertain kinematics and dynamics. A cascade framework is proposed to facilitate the synchronization controller design for networked robotic systems. Under this framework, we propose an adaptive task-space synchronization scheme with indirect/direct kinematic parameter adaptations and a direct dynamic parameter adaptation for the networked robots. We employ the passive decomposition approach to show the asymptotic task-space synchronization of the networked system, and we demonstrate that the proposed control is capable of ensuring the weighted average consensus of the networked uncertain robots. Simulation results are provided to demonstrate the performance of the proposed control approach.
Keywords :
adaptive control; cascade control; control system synthesis; graph theory; multi-robot systems; networked control systems; robot dynamics; robot kinematics; synchronisation; uncertain systems; adaptive task space synchronization scheme; asymptotic task space synchronization; cascade framework; connected graph; direct dynamic parameter adaptation; indirect-direct kinematic parameter adaptation; networked robotic system interconnection; networked uncertain robot; passive decomposition approach; robot uncertain dynamics; robot uncertain kinematics; synchronization controller design; weighted average consensus; Jacobian matrices; Kinematics; Robot kinematics; Robot sensing systems; Synchronization; Uncertainty; Adaptive control; networked robots; task-space synchronization; uncertain kinematics; weighted average consensus;
Journal_Title :
Automatic Control, IEEE Transactions on
DOI :
10.1109/TAC.2013.2254001