Anchor-Oriented Localized Voronoi Partitioning for GPS-denied Multi-Robot Coverage

Fuente: arXiv
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Autores principales: Munir, Aiman, Latif, Ehsan, Parasuraman, Ramviyas
Formato: Preprint
Publicado: 2024
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author Munir, Aiman
Latif, Ehsan
Parasuraman, Ramviyas
author_facet Munir, Aiman
Latif, Ehsan
Parasuraman, Ramviyas
contents Multi-robot coverage is crucial in numerous applications, including environmental monitoring, search and rescue operations, and precision agriculture. In modern applications, a multi-robot team must collaboratively explore unknown spatial fields in GPS-denied and extreme environments where global localization is unavailable. Coverage algorithms typically assume that the robot positions and the coverage environment are defined in a global reference frame. However, coordinating robot motion and ensuring coverage of the shared convex workspace without global localization is challenging. This paper proposes a novel anchor-oriented coverage (AOC) approach to generate dynamic localized Voronoi partitions based around a common anchor position. We further propose a consensus-based coordination algorithm that achieves agreement on the coverage workspace around the anchor in the robots' relative frames of reference. Through extensive simulations and real-world experiments, we demonstrate that the proposed anchor-oriented approach using localized Voronoi partitioning performs as well as the state-of-the-art coverage controller using GPS.
format Preprint
id arxiv_https___arxiv_org_abs_2407_06296
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Anchor-Oriented Localized Voronoi Partitioning for GPS-denied Multi-Robot Coverage
Munir, Aiman
Latif, Ehsan
Parasuraman, Ramviyas
Robotics
Multiagent Systems
Multi-robot coverage is crucial in numerous applications, including environmental monitoring, search and rescue operations, and precision agriculture. In modern applications, a multi-robot team must collaboratively explore unknown spatial fields in GPS-denied and extreme environments where global localization is unavailable. Coverage algorithms typically assume that the robot positions and the coverage environment are defined in a global reference frame. However, coordinating robot motion and ensuring coverage of the shared convex workspace without global localization is challenging. This paper proposes a novel anchor-oriented coverage (AOC) approach to generate dynamic localized Voronoi partitions based around a common anchor position. We further propose a consensus-based coordination algorithm that achieves agreement on the coverage workspace around the anchor in the robots' relative frames of reference. Through extensive simulations and real-world experiments, we demonstrate that the proposed anchor-oriented approach using localized Voronoi partitioning performs as well as the state-of-the-art coverage controller using GPS.
title Anchor-Oriented Localized Voronoi Partitioning for GPS-denied Multi-Robot Coverage
topic Robotics
Multiagent Systems
url https://arxiv.org/abs/2407.06296