Distributed Behavior Trees for Heterogeneous Robot Teams

Fuente: arXiv
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Autori principali: Heppner, Georg, Berg, Nils, Oberacker, David, Spielbauer, Niklas, Roennau, Arne, Dillmann, Rüdiger
Natura: Preprint
Pubblicazione: 2023
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author Heppner, Georg
Berg, Nils
Oberacker, David
Spielbauer, Niklas
Roennau, Arne
Dillmann, Rüdiger
author_facet Heppner, Georg
Berg, Nils
Oberacker, David
Spielbauer, Niklas
Roennau, Arne
Dillmann, Rüdiger
contents Heterogeneous Robot Teams can provide a wide range of capabilities and therefore significant benefits when handling a mission. However, they also require new approaches to capability and mission definition that are not only suitable to handle heterogeneous capabilities but furthermore allow a combination or distribution of them with a coherent representation that is not limiting the individual robot. Behavior Trees offer many of the required properties, are growing in popularity for robot control and have been proposed for multirobot coordination, but always as separate behavior tree, defined in advance and without consideration for a changing team. In this paper, we propose a new behavior tree approach that is capable to handle complex real world robotic missions and is geared towards a distributed execution by providing built in functionalities for cost calculation, subtree distribution and data wiring. We present a formal definition, its open source implementation as ros_bt_py library and experimental verification of its capabilities.
format Preprint
id arxiv_https___arxiv_org_abs_2309_08253
institution arXiv
publishDate 2023
record_format arxiv
spellingShingle Distributed Behavior Trees for Heterogeneous Robot Teams
Heppner, Georg
Berg, Nils
Oberacker, David
Spielbauer, Niklas
Roennau, Arne
Dillmann, Rüdiger
Robotics
Heterogeneous Robot Teams can provide a wide range of capabilities and therefore significant benefits when handling a mission. However, they also require new approaches to capability and mission definition that are not only suitable to handle heterogeneous capabilities but furthermore allow a combination or distribution of them with a coherent representation that is not limiting the individual robot. Behavior Trees offer many of the required properties, are growing in popularity for robot control and have been proposed for multirobot coordination, but always as separate behavior tree, defined in advance and without consideration for a changing team. In this paper, we propose a new behavior tree approach that is capable to handle complex real world robotic missions and is geared towards a distributed execution by providing built in functionalities for cost calculation, subtree distribution and data wiring. We present a formal definition, its open source implementation as ros_bt_py library and experimental verification of its capabilities.
title Distributed Behavior Trees for Heterogeneous Robot Teams
topic Robotics
url https://arxiv.org/abs/2309.08253