A system and method for detecting rail wear and tear defects
A defect detection and rail technology, which is applied in the direction of optical defect/defect detection, can solve problems that are difficult to apply to real-time online measurement of rails, and achieve the effects of strong adaptability, low cost, and high operating efficiency
Active Publication Date: 2018-03-20
成都晟甲科技有限公司 +1
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Problems solved by technology
This technology is generally used to detect surface defects of flat steel plates such as hot-rolled plates, but because the actual rail surface is usually not smooth, this technology is difficult to apply to real-time on-line measurement of rails
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[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0035] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.
[0036] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but not as a limitation of the present invention.
[0037] Such as figure 1 As shown, a rail wear defect detection system is installed on the rail inspection vehic...
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The invention discloses a rail wear defect detection system and method, and relates to the field of wear detection. The invention aims to realize a rail wear defect detection system and method with high measurement accuracy, high operation efficiency and strong adaptability to the environment. The system of the present invention is installed on the rail inspection vehicle to detect defects on the rails of the road section to be inspected. There are a plurality of nodes in the road section to be inspected, and each node corresponds to a standard three-dimensional model; a structured light sensor is used to establish a three-dimensional reconstruction of the rail surface , compare the 3D point cloud obtained by the structured light sensor with the corresponding standard 3D model through the processing unit, detect the absolute wear of the rail, and mark the defect area; at the same time, stitch all the 3D point clouds through the processing unit Obtain a complete three-dimensional cloud image, and have strong adaptability to the environment. The detection method of rail wear defects has the advantages of high measurement accuracy and low cost.
Description
technical field [0001] The invention relates to the field of wear detection, in particular to a rail wear defect detection system and method. Background technique [0002] The existing rail wear measurement technology includes contact and non-contact measurement. Contact measurement means that the detection process is carried out when the detection equipment and the rail are relatively stationary. [0003] Contact measurement can be divided into two categories: mechanical measurement and electronic measurement. Mechanical measurement uses mechanical equipment (such as vernier calipers, etc.) to achieve manual contact measurement. The German RM1200 waveform wear detection equipment is a typical mechanical equipment. Although this type of method is simple to operate and low in cost, its operating efficiency is low and the labor intensity is high. Electronic measurement uses sensors (such as photoelectric sensors or displacement sensors) as the medium to indirectly measure t...
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IPC IPC(8): G01N21/88
Inventor 周剑徐一丹陆宏伟龙学军
Owner 成都晟甲科技有限公司