Turnout wear detection system and detection method based on structured light measurement

Abstract

The invention provides a turnout wear detection system and detection method based on structured light measurement. The detection system comprises a detection system bearing platform, a support, a digital projector, an industrial camera, a computer, a turnout data measurement module, a turnout point cloud data processing module, a turnout curved plane reconstruction module and a contrast detection and data analysis module. The detection method comprises: acquiring turnout data to obtain three-dimensional point cloud data of a target turnout; simplifying and optimizing the point cloud data to reconstruct a continuous turnout three-dimensional curved plane model; and comparing the obtained turnout three-dimensional curved plane model with a same-model turnout standard CAD (Computer Aided Design) model to analyze and estimate turnout wear. By adopting the system and the method, errors caused by wear of contact measurement equipment and subjective influences caused by manual measurement are reduced; and acquired are continuous three-dimensional data, so that the turnout wear measurement is expanded from a limited section to any section, more comprehensive turnout wear information can be established, the turnout wear trend can be forecasted, and missing detection can be effectively prevented.

Description

technical field [0001] The invention relates to a turnout detection device, in particular to a turnout wear detection system and a detection method for collecting continuous data of a turnout profile and processing the data. Background technique [0002] A turnout is a line equipment for locomotive vehicles to transfer from one track to or cross another track. Due to the unevenness of the structure of the turnout itself, the turnout becomes a weak link on the line, which is of great importance to the passing performance and driving safety of the train. influences. When the wear of the turnout exceeds a certain limit, necessary maintenance or replacement of the turnout must be carried out to avoid threatening the driving safety. In particular, a wear detection method with complete data and accurate measurement is required. [0003] The traditional detection of turnouts still uses calipers or other contact measurement methods to measure rail wear. This method is not only slow...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problems of slow detection speed, cumbersome working process and discontinuous laser detection data of traditional contact type turnout, the present invention provides a turnout wear detection device and detection method based on structured light measurement in consideration of the evaluation requirements of turnout wear

Images