The invention belongs to the technical field of track detection. The invention provides a novel track geometric parameter detection method which comprises the following steps: controlling a 2D laser contourgraph to scan the profile of a steel rail on which a train runs according to a set detection frequency to obtain laser image data; the contour curve of the steel rail is extracted from the laser image data through the high-speed image processing technology, the rail contours are calculated according to the contour curve, and the gauge is calculated according to the two rail contours; detecting first inertial data of the train body by using an inertial reference measurement system arranged on the train body, and calculating displacement tracks of the 2D laser contourmeters on the two sides of the track inspection beam relative to the ground according to the first inertial data; and calculating track irregularity parameters according to the arrangement distance between the 2D laser contourgraph and the track top and the displacement track. According to the method, the geometric parameters of the track can be rapidly detected in the normal running process of the train, and the detection efficiency is obviously higher compared with the mode that detection is conducted beside the track manually.

    本发明属于轨道检测技术领域。提供了一种新型的轨道几何参数检测方法,包括:控制2D激光轮廓仪按照设定的探测频率对列车行驶的钢轨廓形进行扫描,获得激光图像数据;运用高速图像处理技术从激光图像数据中提取得出钢轨的轮廓曲线,根据轮廓曲线计算得出轨道轮廓,根据两条轨道轮廓计算得出轨距;利用布设于列车车身上的惯性基准测量系统检测列车车身的第一惯性数据,根据第一惯性数据计算得出轨检梁两侧的2D激光轮廓仪相对于大地的位移轨迹;根据2D激光轮廓仪与轨顶之间的布设距离和位移轨迹计算得出轨道不平顺参数。本发明可在列车正常行驶过程中对轨道几何参数的快速检测,相比于人力在轨道旁进行检测的方式,检测效率明显更高。


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    Title :

    Novel track geometric parameter detection method


    Additional title:

    一种新型的轨道几何参数检测方法


    Contributors:
    ZHANG ZHENYUAN (author) / LIU SHUSONG (author) / YI QINGSONG (author) / QU FANYU (author) / LIU QIANGPING (author) / HE XINGHONG (author) / YAO PENG (author) / SUN ZEEN (author)

    Publication date :

    2025-01-21


    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



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