Robust tracking control for non-holonomic wheeled mobile robots in a leader-follower formation with time-gap separation

"This work addresses the design and validation of a time-gap synchronized leader-follower formation scheme for wheeled mobile multi-robot systems. This scheme generates reference trajectories for each robot through the estimation via observer of the delayed behavior of its predecessor. A second...

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Autores principales: Baquero-Suárez, Mauro, Mas, Ignacio, Giribet, Juan I.
Formato: Ponencias en Congresos acceptedVersion
Lenguaje:Inglés
Publicado: 2021
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Acceso en línea:http://ri.itba.edu.ar/handle/123456789/3348
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Sumario:"This work addresses the design and validation of a time-gap synchronized leader-follower formation scheme for wheeled mobile multi-robot systems. This scheme generates reference trajectories for each robot through the estimation via observer of the delayed behavior of its predecessor. A second goal of this paper is the precise and efficient tracking of these references to achieve the desired movement of the chained formation. Therefore, a robust two-stage controller is proposed, where the angular velocity of lateral wheels is regulated in a first stage by a torque controller, with velocity references provided by a tracking controller that commands the robot’s pose in a second stage. The outlined theory is validated through successful results in simulations of multi-body dynamic models, integrating ADAMS and MATLAB."