Cooperative formation control strategy in heterogeneous network with bounded acceleration

Author(s):  
Arijit Sen ◽  
Soumya Ranjan Sahoo ◽  
Mangal Kothari
2017 ◽  
Vol 121 (1241) ◽  
pp. 877-900 ◽  
Author(s):  
Y. Xu ◽  
Z. Zhen

ABSTRACTThe Unmanned Aerial Vehicles (UAVs) become more and more popular due to various potential application fields. This paper studies the distributed leader-follower formation flight control problem of multiple UAVs with uncertain parameters for both the leader and followers. This problem has not been addressed in the literature. Most of the existing literature considers the leader-follower formation control strategy with parametric uncertainty for the followers. However, they do not take the leader parametric uncertainty into account. Meanwhile, the distributed control strategy depends on less information interactions and is more likely to avoid information conflict. The dynamic model of the UAVs is established based on the aerodynamic parameters. The establishment of the topology structure between a collection of UAVs is based on the algebraic graph theory. To handle the parametric uncertainty of the UAVs dynamics, a multivariable model reference adaptive control (MRAC) method is addressed to design the control law, which enables follower UAVs to track the leader UAV. The stability of the formation flight control system is proved by the Lyapunov theory. Simulation results show that the proposed distributed adaptive leader-following formation flight control system has stronger robustness and adaptivity than the fixed control system, as well as the existing adaptive control system.


Robotica ◽  
2014 ◽  
Vol 33 (2) ◽  
pp. 332-347 ◽  
Author(s):  
Riccardo Falconi ◽  
Lorenzo Sabattini ◽  
Cristian Secchi ◽  
Cesare Fantuzzi ◽  
Claudio Melchiorri

SUMMARYIn this paper, a consensus-based control strategy is presented to gather formation for a group of differential-wheeled robots. The formation shape and the avoidance of collisions between robots are obtained by exploiting the properties of weighted graphs. Since mobile robots are supposed to move in unknown environments, the presented approach to multi-robot coordination has been extended in order to include obstacle avoidance. The effectiveness of the proposed control strategy has been demonstrated by means of analytical proofs. Moreover, results of simulations and experiments on real robots are provided for validation purposes.


2013 ◽  
Vol 341-342 ◽  
pp. 824-829
Author(s):  
Shi You Dong ◽  
Xiao Ping Zhu ◽  
Guo Qing Long

In this paper, the formation problem of UAVs swarm is studied based on a combination of the potential functions. On the basis of mathematical models of the traditional artificial potential field,a new formation potential function is proposed. The potential functions is merged using null space control strategy which is capable of dealing with conflicts among elementary potential functions and avoid local minimum problem. The results achieved by computer simulations suggest that the control approach can produces good effect.


2015 ◽  
Vol 352 (9) ◽  
pp. 3701-3715 ◽  
Author(s):  
Heng Li ◽  
Jun Peng ◽  
Weirong Liu ◽  
Kai Gao ◽  
Zhiwu Huang

Author(s):  
Yaojin Xu ◽  
Long Di ◽  
YangQuan Chen

Small unmanned aerial vehicles (UAVs) can provide facilities in various applications. Compared with single UAV system, small UAVs based cooperative UAV system can bring advantages such as higher efficiency and safety. Therefore, it is necessary to design a robust multi-agent cooperative flight controller to coordinate a group of small UAVs for stable formation flights. This paper investigates the problem of consensus-based formation control for a multi-UAV system. Firstly, We choose a simplified model with nonholonomic constraints for UAV dynamics. Secondly, using the algebraic theory and backstepping technique, we design consensus protocols for multi-UAV systems under the strongly connected topology. Then based on that, we propose a multi-UAVfromation control strategy. Finally, we extend our results to the directed topology case which is still effective by simulation.


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