Rail profile detection method and detection system
A contour detection and rail technology, applied in the field of measurement, can solve the problems of poor portability, cumbersome operation, and low measurement accuracy, and achieve the effect of comprehensive content, simple and convenient operation, and high precision
Active Publication Date: 2017-01-18
SHANGHAI TONGRU ELECTROMECHANICAL TECH
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Problems solved by technology
[0004] At present, the detection methods of rail profile at home and abroad are mainly contact and non-contact. Among them, the contact measurement has high measurement accuracy, but the operation is cumbersome, the measurement efficiency is low, and the measurement accuracy is low, and the device used in contact measurement Only one type of measurement can be done for cross section or longitudinal section
Non-contact measurement uses laser sensors and linear motor drives to simultaneously measure the cross-section and longitudinal section of the rail. However, the existing non-contact measurement devices need to be fixed on the rail or on the vehicle before measurement, and the portability is poor, resulting in measurement It is more complicated for personnel to operate
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[0043] The rail profile detection method and detection system proposed by the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. Advantages and features of the present invention will be apparent from the following description and claims. It should be noted that all the drawings are in a very simplified form and use imprecise scales, and are only used to facilitate and clearly assist the purpose of illustrating the embodiments of the present invention.
[0044] Please refer to figure 1 , which is a flow chart of the rail profile detection method in an embodiment of the present invention, such as figure 1 As shown, the rail profile detection method comprises the steps:
[0045] First, step S1 is performed to select the type of rail profile that needs to be detected currently; the type of rail profile includes rail cross-sectional profile and / or rail longitudinal profile;
[0046] Next, step S2 is...
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The invention provides a rail outline detection method and system. According to the variety of a rail outline to be detected, a three-dimensional scanner is used to scan different positions of a steel rail to create a three-dimensional point-cloud digital model; scanning data of a steel rail portion in the three-dimensional point-cloud digital model is acquired by the K-MEANS clustering algorithm, and data and a measurement analysis report of the rail outline currently to be detected are acquired according to the acquired scanning data of the steel rail portion. The rail outline detection method and system has the advantages that the detecting process is convenient and simple, the precision of rail outline data acquired by detection is high, and the measurement analysis report acquired has complete contents.
Description
technical field [0001] The invention relates to the field of measurement technology, in particular to a rail profile detection method and a detection system. Background technique [0002] Railway transportation is the main force of my country's transportation industry, and its development directly restricts the development of China's economy. With the rapid development of the railway industry and the increase in the running volume of high-speed and heavy-duty trains, the wear of the rails is also becoming more and more serious. Rail wear is an important item in rail quality parameters. Rail wear causes changes in rail profile dimensions, which deteriorates wheel-rail dynamics, increases the possibility of accidents during train operation, and reduces the service life of rails and locomotives. The continuous expansion of the railway network and the increase in maintenance and repair requirements put forward new requirements for rail inspection. [0003] The change of rail ...
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IPC IPC(8): G01B21/20
CPCG01B21/20
Inventor 周宇乔炳龙刘博
Owner SHANGHAI TONGRU ELECTROMECHANICAL TECH