The invention provides a turnout rail piece rail surface falling block detection method and device, and the method comprises a turnout rail piece recognition step, a two-dimensional image extraction step, a rail surface falling block recognition step, a falling block effective point cloud generation step, and a falling block feature size calculation step. The starting point of the turnout rail piece is identified in the profile data based on the profile characteristics of the turnout rail piece, and the corresponding two-dimensional image is extracted based on the starting point and the preset extension length to identify the falling block, so that the identified falling block on the rail surface can correspond to the turnout rail piece of the corresponding type; because the camera image and the track profile data acquired by the line laser sensor are combined, the falling block can be efficiently identified from the image by using the neural network, and the corresponding profile data can be further extracted to generate an effective point cloud for calculating the depth and other feature sizes of the falling block, so that the accuracy of the detection is improved. Therefore, more comprehensive detection data of the rail surface falling block can be obtained, the depth and other dimensions of the falling block do not need to be manually detected, the method can be applied to actual field detection, and the detection efficiency is improved.

    本发明提供一种道岔轨件轨面掉块检测方法及设备,该方法包括道岔轨件识别步骤、二维图像提取步骤、轨面掉块识别步骤、掉块有效点云生成步骤、掉块特征尺寸计算步骤,由于基于道岔轨件的廓形特征在廓形数据中识别出了道岔轨件起点,并基于该起点和预定延伸长度提取出对应的二维图像用以识别掉块,因此识别出的轨面掉块能对应到相应类型的道岔轨件;由于结合了相机图像和线激光传感器采集的轨道廓形数据,因此不仅能利用神经网络从图像中高效识别出掉块,并且可进一步提取对应的廓形数据生成有效点云,用以计算掉块的深度等特征尺寸,从而可得到轨面掉块更为全面的检测数据,不需再人工补测掉块深度等尺寸,可应用于实际现场检测,提高检测效率。


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    Title :

    Turnout rail piece rail surface falling block detection method and device


    Additional title:

    道岔轨件轨面掉块检测方法及设备


    Contributors:
    WANG YULIN (author) / HUANG KE (author) / HONG XIAOJIE (author) / WANG HAITAO (author) / YU YOUNG GYU (author) / LIU WEI (author) / ZHANG CHANGLING (author) / WANG WEI (author) / HE MINGDE (author)

    Publication date :

    2023-10-24


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    G06T Bilddatenverarbeitung oder Bilddatenerzeugung allgemein , IMAGE DATA PROCESSING OR GENERATION, IN GENERAL / B61K Andere Hilfseinrichtungen für Eisenbahnen , OTHER AUXILIARY EQUIPMENT FOR RAILWAYS / G01N Untersuchen oder Analysieren von Stoffen durch Bestimmen ihrer chemischen oder physikalischen Eigenschaften , INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES / G06N COMPUTER SYSTEMS BASED ON SPECIFIC COMPUTATIONAL MODELS , Rechnersysteme, basierend auf spezifischen Rechenmodellen / G06V



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