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Robotics 2018, 7(3), 37;

Hitchhiking Based Symbiotic Multi-Robot Navigation in Sensor Networks

School of Regional Innovation and Social Design Engineering, Faculty of Engineering, Kitami Institute of Technology, Kitami, Hokkaido 090-8507, Japan
Division of Human Mechanical Systems and Design, Faculty of Engg., Hokkaido University, Sapporo, Hokkaido 060-8628, Japan
Department of Aeronautics and Astronautics, National Cheng Kung University, Tainan 701, Taiwan
These authors contributed equally to this work.
Author to whom correspondence should be addressed.
Received: 24 May 2018 / Revised: 20 June 2018 / Accepted: 12 July 2018 / Published: 15 July 2018
(This article belongs to the Special Issue Distributed, Ubiquitous and Multi-Agent Robotic Architectures)
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Robot navigation is a complex process that involves real-time localization, obstacle avoidance, map update, control, and path planning. Thus, it is also a computationally expensive process, especially in multi-robot systems. This paper presents a cooperative multi-robot navigation scheme in which a robot can ‘hitchhike’ another robot, i.e., two robots going to the same (or close) destination navigate together in a leader–follower system assisted by visual servoing. Although such cooperative navigation has many benefits compared to traditional approaches with separate navigation, there are many constraints to implementing such a system. A sensor network removes those constraints by enabling multiple robots to communicate with each other to exchange meaningful information such as their respective positions, goal and destination locations, and drastically improves the efficiency of symbiotic multi-robot navigation through hitchhiking. We show that the proposed system enables efficient navigation of multi-robots without loss of information in a sensor network. Efficiency improvements in terms of reduced waiting time of the hitchhiker, not missing potential drivers, best driver-profile match, and velocity tuning are discussed. Novel algorithms for partial hitchhiking, and multi-driver hitchhiking are proposed. A novel case of hitchhiking based simultaneous multi-robot teleoperation by a single operation is also proposed. All the proposed algorithms are verified by experiments in both simulation and real environment. View Full-Text
Keywords: multi-robot navigation; multi-robot cooperation; robots in sensor networks multi-robot navigation; multi-robot cooperation; robots in sensor networks

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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Ravankar, A.; Ravankar, A.A.; Kobayashi, Y.; Hoshino, Y.; Peng, C.-C.; Watanabe, M. Hitchhiking Based Symbiotic Multi-Robot Navigation in Sensor Networks. Robotics 2018, 7, 37.

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