Multi-robot Aerial Soft Manipulator For Floating Litter Collection

Fuente: arXiv
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Main Authors: González-Morgado, Antonio, Smits, Sander, Heredia, Guillermo, Ollero, Anibal, Krupa, Alexandre, Chaumette, François, Spindler, Fabien, Franchi, Antonio, Gabellieri, Chiara
Format: Preprint
Published: 2025
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author González-Morgado, Antonio
Smits, Sander
Heredia, Guillermo
Ollero, Anibal
Krupa, Alexandre
Chaumette, François
Spindler, Fabien
Franchi, Antonio
Gabellieri, Chiara
author_facet González-Morgado, Antonio
Smits, Sander
Heredia, Guillermo
Ollero, Anibal
Krupa, Alexandre
Chaumette, François
Spindler, Fabien
Franchi, Antonio
Gabellieri, Chiara
contents Removing floating litter from water bodies is crucial to preserving aquatic ecosystems and preventing environmental pollution. In this work, we present a multi-robot aerial soft manipulator for floating litter collection, leveraging the capabilities of aerial robots. The proposed system consists of two aerial robots connected by a flexible rope manipulator, which collects floating litter using a hook-based tool. Compared to single-aerial-robot solutions, the use of two aerial robots increases payload capacity and flight endurance while reducing the downwash effect at the manipulation point, located at the midpoint of the rope. Additionally, we employ an optimization-based rope-shape planner to compute the desired rope shape. The planner incorporates an adaptive behavior that maximizes grasping capabilities near the litter while minimizing rope tension when farther away. The computed rope shape trajectory is controlled by a shape visual servoing controller, which approximates the rope as a parabola. The complete system is validated in outdoor experiments, demonstrating successful grasping operations. An ablation study highlights how the planner's adaptive mechanism improves the success rate of the operation. Furthermore, real-world tests in a water channel confirm the effectiveness of our system in floating litter collection. These results demonstrate the potential of aerial robots for autonomous litter removal in aquatic environments.
format Preprint
id arxiv_https___arxiv_org_abs_2507_03517
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Multi-robot Aerial Soft Manipulator For Floating Litter Collection
González-Morgado, Antonio
Smits, Sander
Heredia, Guillermo
Ollero, Anibal
Krupa, Alexandre
Chaumette, François
Spindler, Fabien
Franchi, Antonio
Gabellieri, Chiara
Robotics
Systems and Control
Removing floating litter from water bodies is crucial to preserving aquatic ecosystems and preventing environmental pollution. In this work, we present a multi-robot aerial soft manipulator for floating litter collection, leveraging the capabilities of aerial robots. The proposed system consists of two aerial robots connected by a flexible rope manipulator, which collects floating litter using a hook-based tool. Compared to single-aerial-robot solutions, the use of two aerial robots increases payload capacity and flight endurance while reducing the downwash effect at the manipulation point, located at the midpoint of the rope. Additionally, we employ an optimization-based rope-shape planner to compute the desired rope shape. The planner incorporates an adaptive behavior that maximizes grasping capabilities near the litter while minimizing rope tension when farther away. The computed rope shape trajectory is controlled by a shape visual servoing controller, which approximates the rope as a parabola. The complete system is validated in outdoor experiments, demonstrating successful grasping operations. An ablation study highlights how the planner's adaptive mechanism improves the success rate of the operation. Furthermore, real-world tests in a water channel confirm the effectiveness of our system in floating litter collection. These results demonstrate the potential of aerial robots for autonomous litter removal in aquatic environments.
title Multi-robot Aerial Soft Manipulator For Floating Litter Collection
topic Robotics
Systems and Control
url https://arxiv.org/abs/2507.03517