Title :
Potential-based flocking in multi-agent systems with limited angular fields of view
Author :
Asadi, Mohammad Mehdi ; Aghdam, Amir G.
Author_Institution :
Dept. of Electr. & Comput. Eng., Concordia Univ., Montréal, QC, Canada
Abstract :
In this paper, the flocking problem in a network of double-integrator agents with angularly limited fields of view (FOV) is investigated. The conic-shaped angular FOVs impose sensing limitations on every agent in the network. To increase the sensing capability of agents and preserve network connectivity, the FOV of every agent rotates with a sufficiently fast angular velocity. The problem is formulated in the framework of distributed switched nonlinear systems to address the switching topology of the network. Potential-based control inputs are subsequently designed as a combination of alignment and attractive/repulsive forces, such that the velocity vector of each agent exponentially reaches a certain neighborhood of a given desired velocity vector and the inter-agent collision is avoided. The efficacy of the proposed control strategy is confirmed by the simulation results.
Keywords :
collision avoidance; control system synthesis; distributed control; multi-agent systems; network theory (graphs); network topology; nonlinear control systems; time-varying systems; attractive force; conic shaped angular FOV; control strategy; distributed switched nonlinear system; double integrator agent; interagent collision avoidance; limited angular field of view; multiagent system; network connectivity; network switching topology; potential-based control input; potential-based flocking; repulsive force; sensing capability; switching topology; Angular velocity; Lyapunov methods; Multi-agent systems; Optical sensors; Optical variables measurement; Vectors; Agents-based systems; Autonomous systems; Cooperative control;
Conference_Titel :
American Control Conference (ACC), 2014
Conference_Location :
Portland, OR
Print_ISBN :
978-1-4799-3272-6
DOI :
10.1109/ACC.2014.6859303