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

He Xu, Yan Xu*, Hu Fu, Yixian Xu, X. Z. Gao, Khalil Alipour

*Corresponding author for this work

    Research output: Contribution to journalArticleScientificpeer-review

    4 Citations (Scopus)

    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.

    Original languageEnglish
    Pages (from-to)557-566
    Number of pages10
    JournalINDUSTRIAL ROBOT: AN INTERNATIONAL JOURNAL
    Volume41
    Issue number6
    DOIs
    Publication statusPublished - 14 Oct 2014
    MoE publication typeA1 Journal article-refereed

    Keywords

    • Biomimetic neck
    • Chameleon-inspired visual system
    • Coordinated movement
    • Mobile robot
    • Target tracking

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