1–6 of 6 hits
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    Traffic signal lamp device and method

    Free access
    YANG PAN / HU YONGQUAN / QI JINGJING et al. | European Patent Office | 2023

    Road traffic speed measuring device and speed measuring method

    Free access
    HAO NENGBAO / HU YONGQUAN / XU GANG et al. | European Patent Office | 2023

    Road intersection management and control equipment

    Free access
    HAO NENGBAO / HU YONGQUAN / XU GANG et al. | European Patent Office | 2023

    Portable road traffic checkpoint management system

    Free access
    YANG PAN / HAO NENGBAO / LIU JUN et al. | European Patent Office | 2020

    Intersection vehicle illegal lane change early warning management and control method and system based on thunder monitoring

    Free access
    LI GUOQIANG / YANG JUN / HU YONGQUAN et al. | European Patent Office | 2022

    Traffic signal lamp dust removal device

    Free access
    LI JUN / CHEN XIAOQING / LI ZHENDONG et al. | European Patent Office | 2024