A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Visual control steel rail defect position detection method and system
The invention relates to the technical field of ultrahigh pressure water jet polishing, in particular to a visual control steel rail defect position detection method and system. The method comprises the steps of collecting a surface image of a to-be-detected steel rail through a binocular camera; defining a plurality of measuring points; calculating the vertical height values of the plurality of measurement points relative to the binocular camera; comparing the vertical height values of the plurality of measuring points of the steel rail to be detected relative to the binocular camera with the height values of the measuring points at the corresponding positions of the standard steel rail relative to the binocular camera, and calculating the difference value; and if the difference value is not within the threshold range, determining that the image is abnormal. According to the invention, the binocular camera is applied to steel rail polishing detection, and the images of the three side surfaces of the steel rail are collected in real time and calculated in real time, so that the defect position can be efficiently detected and positioned, and the problems of high cost and low efficiency caused by traditional manual detection are effectively avoided.
本发明涉及超高压水射流打磨技术领域，尤其涉及一种视觉控制钢轨缺陷位置检测方法及系统。方法包括：通过双目相机采集待检测钢轨的表面图像；划定若干个测量点；计算所述若干个测量点的相对于所述双目相机的垂直高度值；将所述待检测钢轨的若干个测量点的相对于所述双目相机的垂直高度值，与标准钢轨的对应位置的测量点的相对于所述双目相机的高度值进行对比，计算其差值；如果差值不在阈值范围内，则判定为异常。本发明将双目相机应用于钢轨打磨探测中，通过对钢轨上三侧面的图像实时采集，并进行实时计算，可以高效率进行缺陷位置的检测并定位，有效规避传统人工检测带来的高成本和低效率问题。
Visual control steel rail defect position detection method and system
The invention relates to the technical field of ultrahigh pressure water jet polishing, in particular to a visual control steel rail defect position detection method and system. The method comprises the steps of collecting a surface image of a to-be-detected steel rail through a binocular camera; defining a plurality of measuring points; calculating the vertical height values of the plurality of measurement points relative to the binocular camera; comparing the vertical height values of the plurality of measuring points of the steel rail to be detected relative to the binocular camera with the height values of the measuring points at the corresponding positions of the standard steel rail relative to the binocular camera, and calculating the difference value; and if the difference value is not within the threshold range, determining that the image is abnormal. According to the invention, the binocular camera is applied to steel rail polishing detection, and the images of the three side surfaces of the steel rail are collected in real time and calculated in real time, so that the defect position can be efficiently detected and positioned, and the problems of high cost and low efficiency caused by traditional manual detection are effectively avoided.
本发明涉及超高压水射流打磨技术领域，尤其涉及一种视觉控制钢轨缺陷位置检测方法及系统。方法包括：通过双目相机采集待检测钢轨的表面图像；划定若干个测量点；计算所述若干个测量点的相对于所述双目相机的垂直高度值；将所述待检测钢轨的若干个测量点的相对于所述双目相机的垂直高度值，与标准钢轨的对应位置的测量点的相对于所述双目相机的高度值进行对比，计算其差值；如果差值不在阈值范围内，则判定为异常。本发明将双目相机应用于钢轨打磨探测中，通过对钢轨上三侧面的图像实时采集，并进行实时计算，可以高效率进行缺陷位置的检测并定位，有效规避传统人工检测带来的高成本和低效率问题。
Visual control steel rail defect position detection method and system
一种视觉控制钢轨缺陷位置检测方法及系统
CHEN PING (author) / CHEN MULIN (author) / HU DIANYANG (author) / MENG XIANGSHENG (author) / ZHAO YU (author) / ZHANG KUN (author) / HE XIANG (author) / HE JIE (author) / WANG YULIANG (author) / YOU PENGHUI (author)
2023-03-28
Patent
Electronic Resource
Chinese
IPC:
E01B
PERMANENT WAY
,
Gleisoberbau
/
G01B
MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS
,
Messen der Länge, der Dicke oder ähnlicher linearer Abmessungen
/
G01N
Untersuchen oder Analysieren von Stoffen durch Bestimmen ihrer chemischen oder physikalischen Eigenschaften
,
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
Signature Analysis on Wheel-Rail Interactions for Rail Defect Detection
| British Library Conference Proceedings | 2008