Title
Chord: Distributed Data-Sharing Via Hybrid Ros 1 And 2 For Multi-Robot Exploration Of Large-Scale Complex Environments
Abstract
A well-structured and reliable communication system is key to the successful operations of multi-robot systems. In this letter, we present our design and implementation of a multi-robot communication architecture CHORD (Collaborative High-bandwidth Operations with Radio Droppables) based on two popular robotics middleware, ROS 1 and ROS 2. We discuss the benefit and best practices of combining two different frameworks that share the same spirit and show its performance from large-scale real-world experiments. The proposed system is developed as part of Team CoSTAR's effort for the DARPA Subterranean (SubT) Challenge. The system has been field-proved and demonstrated in the Urban Circuit event, where team CoSTAR won first place. To our knowledge, this work is the first real-world demonstration of a ROS 2-based multi-robot system in such large-scale extreme environments. From the significant improvement of the communication performance and the ease of transition from existing ROS 1 systems, this work encourages wider adoption of ROS 2 in field robotics applications.
Year
DOI
Venue
2021
10.1109/LRA.2021.3061393
IEEE ROBOTICS AND AUTOMATION LETTERS
Keywords
DocType
Volume
Networked robots, multi-robot systems, field robots
Journal
6
Issue
ISSN
Citations 
3
2377-3766
0
PageRank 
References 
Authors
0.34
0
5
Name
Order
Citations
PageRank
Muhammad Fadhil Ginting100.68
Kyohei Otsu243.80
Jeffrey Edlund300.34
Jay Gao400.34
Ali-akbar Agha-mohammadi521.06