期刊
出版社
SAGE PUBLICATIONS LTD
DOI: 10.1177/09596518231188488
关键词
Adaptive obstacle avoidance; formation control; leader-follower approach; model predictive control; narrow alleyway
This article presents an adaptive obstacle avoidance control strategy for a multi-robot system in narrow alleyway environments. The strategy includes a formation decision mechanism and a model predictive control-based formation controller. The decision mechanism offers two obstacle avoidance methods, homogeneous deformation and heterogeneous deformation, to provide flexible options for the formation. A formation bank is preset to determine the best obstacle avoidance configuration based on structural deformation, convergence speed, and energy consumption. The proposed model predictive control-based formation controller ensures successful configuration switching and maintenance, as verified by simulation results.
This article develops an effective adaptive obstacle avoidance control strategy containing formation decision mechanism and a model predictive control-based formation controller for a multi-robot system working in a narrow alleyway environment. First, a decision mechanism containing two obstacle avoidance methods, homogeneous deformation and heterogeneous deformation, is established to provide a flexible choice for the formation to pass through the obstacle area, taking into account the formation safety and environment constraint. Furthermore, a formation bank is preset, and a performance evaluation system containing structural deformation, convergence speed, and energy consumption is established to help determine the best obstacle avoidance configuration. Then, a model predictive control-based formation controller with the leader-follower approach is utilized to realize the configuration switching and keeping. In the end, the simulation results verify the effectiveness of the proposed control strategy.
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