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Coordinated movement of biomimetic dual PTZ visual system and wheeled mobile robot

He Xu (College of Mechanical and Electrical Engineering, Harbin Engineering University, Harbin, China)
Yan Xu (College of Mechanical and Electrical Engineering, Harbin Engineering University, Harbin, China)
Hu Fu (College of Mechanical and Electrical Engineering, Harbin Engineering University, Harbin, China)
Yixian Xu (College of Mechanical and Electrical Engineering, Harbin Engineering University, Harbin, China)
X.Z. Gao (Department of Automation and Systems Technology, Aalto University School of Electrical Engineering, Aalto, Finland)
Khalil Alipour (Department of Mechatronics Engineering, University of Tehran, Tehran, Iran)

Industrial Robot

ISSN: 0143-991x

Article publication date: 20 October 2014

397

Abstract

Purpose

The purpose of this paper is to explore a novel control approach for swift and accurate positioning and tracking of a mobile robot. Coordinated movement of the mobile robot-body and chameleon-inspired binocular “negative correlation” visual system (CIBNCVS) with neck has rarely been considered in conventional mobile robot design. However, it is vital in swift and accurate positioning and tracking of the target. Consequently, it is valuable to find an optimized method where the robot-body, the biomimetic eyes and neck could achieve optimal coordinated movement.

Design/methodology/approach

Based on a wheeled mobile robot, a biomimetic dual Pan–Tilt–Zoom visual system with neck is constructed. The cameras can rely on the unique “negative correlation” mode of chameleon vision, and cooperate with neck, achieving swift search of the 160° scope in front of the robot. Genetic algorithm is used to obtain optimal rotation of the neck and robot-body. Variable resolution targeting is also applied for accurate aiming. Using these two approaches, we can achieve efficient targeting with low energy consumption. Particle filter algorithm is further utilized for real-time tracking.

Findings

In the proposed approach, swift and accurate positioning and tracking of the target can be obtained. The rationality of the approach is verified by experiments on flat and sandy terrains with satisfactory results.

Originality/value

This paper proposes a novel control approach for wheeled mobile robots, which achieves coordinated movement of the robot-body and CIBNCVS with neck concerning time and energy saving in the process of swift and accurate tracking.

Keywords

Acknowledgements

This research work is supported by the National Natural Science Foundation of China under Grant 60775060, Specialized Research Fund for the Doctoral Program of Higher Education under Grant 20102304110006, 20122304110014 and Harbin Science and Technology Innovation Talents Special Fund under Grant 2012RFXXG059. X. Z. Gao’s research was funded by the Finnish Funding Agency for Technology and Innovation (TEKES).

Citation

Xu, H., Xu, Y., Fu, H., Xu, Y., Gao, X.Z. and Alipour, K. (2014), "Coordinated movement of biomimetic dual PTZ visual system and wheeled mobile robot", Industrial Robot, Vol. 41 No. 6, pp. 557-566. https://doi.org/10.1108/IR-05-2014-0345

Publisher

:

Emerald Group Publishing Limited

Copyright © 2014, Emerald Group Publishing Limited

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