The invention provides a steel rail irregularity detection system and a detection method thereof.The transmitting end of the steel rail irregularity detection system comprises an external cavity type tunable laser, a beam splitter I, a delay optical fiber, a coupler I, a circulator, a coated optical fiber, an optical detector, a red light laser, a coupler II and a collimator; the receiving end comprises an imaging plate, an optical filter and an infrared camera, the signal processing end comprises a data acquisition card and a computer, frequency modulation continuous waves are used for distance measurement, meanwhile, the infrared camera is used for tracking the position of a laser spot on the imaging plate, the distance measurement precision is high, non-cooperative target measurement can be achieved, and the anti-jamming capability is high; the infrared camera is used for positioning the position of a measured light spot, so that the measurement repeatability is high, and the influence of environmental factors such as sunlight is avoided; and combining the distance information of the three selected measurement positions on the steel rail and the pixel coordinates of the light spots to solve a height irregularity measurement value and a rail direction irregularity measurement value of the steel rail, so as to detect the irregularity of the steel rail.

    本发明提供了一种钢轨不平顺检测系统及其检测方法,所述钢轨不平顺检测系统的发射端包括外腔式可调谐激光器、分束器Ⅰ、延迟光纤、耦合器Ⅰ、环形器、镀膜光纤、光探测器、红光激光器、耦合器Ⅱ和准直器,接收端包括成像板、滤光片和红外相机,信号处理端包括数据采集卡和计算机,利用调频连续波进行距离测量,同时利用红外相机对成像板上的激光光斑位置进行追踪,测距精度高,可以实现非合作目标测量,抗干扰能力强;利用红外相机对测量光斑位置进行定位,测量重复性高,不受阳光等环境因素的影响;结合钢轨上三个选定测量位置的距离信息和光斑像素坐标解算出钢轨的高低不平顺测量值和轨向不平顺测量值,从而实现对钢轨的不平顺进行检测。


    Access

    Download


    Export, share and cite



    Title :

    Steel rail irregularity detection system and detection method thereof


    Additional title:

    一种钢轨不平顺检测系统及其检测方法


    Contributors:
    ZHANG FUMIN (author) / LIU MENGXIN (author)

    Publication date :

    2024-02-06


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B61K Andere Hilfseinrichtungen für Eisenbahnen , OTHER AUXILIARY EQUIPMENT FOR RAILWAYS / G01B MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS , Messen der Länge, der Dicke oder ähnlicher linearer Abmessungen



    Remote control automatic detection device and system for irregularity of steel rail

    LIU XIANGMING / CHEN YING / WANG LONG et al. | European Patent Office | 2025

    Free access

    Road Irregularity Detection

    KOBASHI ATSUHIDE / OSTAFEW CHRISTOPHER | European Patent Office | 2025

    Free access

    Rail irregularity detection method based on correlation statistical characterization and perception serialization

    JIA LIMIN / GUO JIAQIANG / CAO GENGYAN et al. | European Patent Office | 2025

    Free access

    IRREGULARITY DETECTION RULE UPDATE METHOD, IRREGULARITY DETECTION ELECTRONIC CONTROL UNIT, AND ON-BOARD NETWORK SYSTEM

    UJIIE YOSHIHIRO / MATSUSHIMA HIDEKI / HAGA TOMOYUKI et al. | European Patent Office | 2019

    Free access

    IRREGULARITY DETECTION RULE UPDATE METHOD, IRREGULARITY DETECTION ELECTRONIC CONTROL UNIT, AND ON-BOARD NETWORK SYSTEM

    UJIIE YOSHIHIRO / MATSUSHIMA HIDEKI / HAGA TOMOYUKI et al. | European Patent Office | 2016

    Free access