Sparse-Graph-Enabled Formation Planning for Large-Scale Aerial Swarms

Fuente: arXiv
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Main Authors: Zhou, Yuan, Quan, Lun, Xu, Chao, Xu, Guangtong, Gao, Fei
Format: Preprint
Published: 2024
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_version_ 1866914728298676224
author Zhou, Yuan
Quan, Lun
Xu, Chao
Xu, Guangtong
Gao, Fei
author_facet Zhou, Yuan
Quan, Lun
Xu, Chao
Xu, Guangtong
Gao, Fei
contents The formation trajectory planning using complete graphs to model collaborative constraints becomes computationally intractable as the number of drones increases due to the curse of dimensionality. To tackle this issue, this paper presents a sparse graph construction method for formation planning to realize better efficiency-performance trade-off. Firstly, a sparsification mechanism for complete graphs is designed to ensure the global rigidity of sparsified graphs, which is a necessary condition for uniquely corresponding to a geometric shape. Secondly, a good sparse graph is constructed to preserve the main structural feature of complete graphs sufficiently. Since the graph-based formation constraint is described by Laplacian matrix, the sparse graph construction problem is equivalent to submatrix selection, which has combinatorial time complexity and needs a scoring metric. Via comparative simulations, the Max-Trace matrix-revealing metric shows the promising performance. The sparse graph is integrated into the formation planning. Simulation results with 72 drones in complex environments demonstrate that when preserving 30\% connection edges, our method has comparative formation error and recovery performance w.r.t. complete graphs. Meanwhile, the planning efficiency is improved by approximate an order of magnitude. Benchmark comparisons and ablation studies are conducted to fully validate the merits of our method.
format Preprint
id arxiv_https___arxiv_org_abs_2403_17288
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Sparse-Graph-Enabled Formation Planning for Large-Scale Aerial Swarms
Zhou, Yuan
Quan, Lun
Xu, Chao
Xu, Guangtong
Gao, Fei
Robotics
The formation trajectory planning using complete graphs to model collaborative constraints becomes computationally intractable as the number of drones increases due to the curse of dimensionality. To tackle this issue, this paper presents a sparse graph construction method for formation planning to realize better efficiency-performance trade-off. Firstly, a sparsification mechanism for complete graphs is designed to ensure the global rigidity of sparsified graphs, which is a necessary condition for uniquely corresponding to a geometric shape. Secondly, a good sparse graph is constructed to preserve the main structural feature of complete graphs sufficiently. Since the graph-based formation constraint is described by Laplacian matrix, the sparse graph construction problem is equivalent to submatrix selection, which has combinatorial time complexity and needs a scoring metric. Via comparative simulations, the Max-Trace matrix-revealing metric shows the promising performance. The sparse graph is integrated into the formation planning. Simulation results with 72 drones in complex environments demonstrate that when preserving 30\% connection edges, our method has comparative formation error and recovery performance w.r.t. complete graphs. Meanwhile, the planning efficiency is improved by approximate an order of magnitude. Benchmark comparisons and ablation studies are conducted to fully validate the merits of our method.
title Sparse-Graph-Enabled Formation Planning for Large-Scale Aerial Swarms
topic Robotics
url https://arxiv.org/abs/2403.17288