The invention discloses a train wheel out-of-roundness detection method based on three-dimensional information. The train wheel out-of-roundness detection method comprises the steps of image acquisition and preprocessing, laser center line extraction, laser coordinate transformation and wheel out-of-roundness detection. According to the method, a small number of line-scan digital cameras and a 3D laser scanner module are combined to generate a plurality of two-dimensional image data and laser scanning data with depth information, a tread area of laser scanning is extracted, and a wheel tread contour with depth information is reconstructed based on an elliptical model. According to the method, the local out-of-roundness or the overall out-of-roundness of the wheel can be accurately calculated through the wheel tread contour data, and a detection report is dynamically generated in time for a customer to check and overhaul.
本发明公开了一种基于三维信息的列车车轮不圆度检测方法,包括图像采集并预处理、激光中心线提取、激光坐标变换和车轮不圆度检测。本发明只需采用少量的线阵相机与3D激光扫描仪模块的组合,生成多个二维图像数据及具有深度信息的激光扫描数据,提取激光扫描的踏面区域,基于椭圆模型重建具有深度信息的车轮踏面轮廓。无论是车轮局部不圆度还是整体不圆度,本发明方法都可以通过车轮踏面轮廓数据精确计算出来,及时动态生成检测报告供客户复核检修。
Train wheel out-of-roundness detection method based on three-dimensional information
一种基于三维信息的列车车轮不圆度检测方法
2022-06-14
Patent
Elektronische Ressource
Chinesisch
IPC: | B61K Andere Hilfseinrichtungen für Eisenbahnen , OTHER AUXILIARY EQUIPMENT FOR RAILWAYS |
Train wheel offset detection device and train wheel out-of-roundness detection system
Europäisches Patentamt | 2024
|Train wheel tread defect and out-of-roundness three-dimensional image pass-type detection system
Europäisches Patentamt | 2020
|Data acquisition method applied to dynamic train wheel out-of-roundness measurement
Europäisches Patentamt | 2024
|Wheel tread scratch and out-of-roundness online dynamic detection method
Europäisches Patentamt | 2021
|