Title :
Sampling-based receding horizon collision-free control for a class of Micro Aerial Vehicles
Author :
Alexis, Kostas ; Papachristos, Christos ; Siegwart, Roland ; Tzes, Anthony
Author_Institution :
Autonomous Syst. Lab., ETH Zurich, Zurich, Switzerland
Abstract :
A novel sampling-based receding horizon control strategy that guarantees collision-free navigation for a class of aerial robots is the topic of this paper. The proposed approach combines the concepts of receding horizon control and sampling-based navigation strategies in order to derive a model-based control framework, which respects input and state constraints, and achieves avoidance of any known obstacle while remaining computationally lightweight even for systems of high-order and complex, convex or non-convex obstacles and long prediction horizons. The control law is applied for the case of a multirotor Micro Aerial Vehicle that optionally also employs its capacity to direct its thrust via a rotors´ tilting mechanism. Extensive simulation studies indicate that high performance collision-free navigation is achieved and reasonably long prediction horizons can be handled while remaining applicable for on-board deployment.
Keywords :
aerospace navigation; autonomous aerial vehicles; collision avoidance; mobile robots; sampling methods; aerial robots; collision-free navigation; model-based control framework; multirotor microaerial vehicle; obstacle avoidance; rotor tilting mechanism; sampling-based navigation strategies; sampling-based receding horizon collision-free control; Aerospace electronics; Computational modeling; Navigation; Robots; Rotors; Vehicle dynamics; Vehicles; Aerial Robots; Receding Horizon Control; Sampling-based methods; Unmanned Aerial Vehicles;
Conference_Titel :
Control and Automation (MED), 2015 23th Mediterranean Conference on
Conference_Location :
Torremolinos
DOI :
10.1109/MED.2015.7158824