Defect detection imaging system of railway overhead contact system supporting mechanism

A technology for support mechanism and defect detection, which is applied in railway vehicle shape measuring instruments, testing of machine/structural components, railway car body components, etc., can solve problems such as insufficient comprehensiveness, low imaging resolution, redundant data detection information, etc. Achieve the effect of fewer devices, strong system stability, and avoidance of strong light interference

Pending Publication Date: 2019-03-12
成都精工华耀科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a defect detection imaging system for railway catenary support mechanism, which provides more comprehensive and rich image data for the automatic detection of catenary support mechanism defects, so as to solve the problems of low imaging resolution and redundant data generation in the prior art. Insufficient detection information and other issues

Method used

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  • Defect detection imaging system of railway overhead contact system supporting mechanism
  • Defect detection imaging system of railway overhead contact system supporting mechanism
  • Defect detection imaging system of railway overhead contact system supporting mechanism

Examples

Experimental program
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Effect test

Embodiment 1

[0042] as attached figure 1 Shown is a longitudinal view of the imaging system of the present invention, with figure 2 Shown is the lateral view of the imaging system of the present invention, with image 3 Shown is the top view of the imaging device of the present invention, the railway catenary support mechanism defect detection imaging system designed by the present invention, by the imaging trigger module, four area array cameras A1 (9), A2 (10), A3 (6), A4 ( 7), composed of a line array camera 5, four surface light sources, line light source, industrial computer and power supply interface,

[0043]The imaging trigger module is composed of three photoelectric proximity switches 11, a photoelectric code disc 4 and a signal processing module. The three photoelectric proximity switches 11 are respectively located on the top and both sides of the detection platform, and are used to sense the approaching objects in the areas above the compartment 3 and on both sides. , when ...

Embodiment 2

[0065] In embodiment 2, four area array cameras A1 (9), A2 (10), A3 (6), A4 (7) and line array cameras 5 are monochromatic image sensors, and in area array cameras A1 (9), A2(10), A3(6), A4(7) and line array cameras 5 are equipped with a narrow band-pass filter with a wavelength b at the front end, the surface light source and line light source are monochromatic light sources with a wavelength b, and the wavelength b is 808nm .

[0066] All the other devices are the same as in Example 1.

Embodiment 3

[0068] In embodiment 3, four area array cameras A1 (9), A2 (10), A3 (6), A4 (7) and line array cameras 5 are monochrome image sensors, and the surface light source and line light source are monochrome light sources, The wavelength of the surface light source that provides illumination for the area array camera A1 (9) is e1, the wavelength of the surface light source that provides illumination for the area array camera A2 (10) is e2, and the wavelength of the surface light source that provides illumination for the area array camera A3 (6) is e3 , the wavelength of the surface light source that provides illumination for the area array camera A4 (7) is e4, the wavelength of the line light source that provides illumination for the line array camera 5 is e5, and the wavelength ranges of e1 to e5 do not overlap. , A2 (10), A3 (6), A4 (7) and line array camera 5 front ends are respectively provided with the narrow band pass filter that wavelength is e1~e5, wherein e1=400nm, e2=500nm, ...

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Abstract

The invention discloses a defect detection imaging system of a railway overhead contact system supporting mechanism, and belongs to the technical field of track safety detection. The defect detectionimaging system adopts a photoelectric proximity switch to perceive a supporting column or a cantilever of the supporting mechanism so as to generate an imaging control signal for triggering imaging; four area array cameras are arranged at the top of a carriage to conduct high-definition imaging on the front, rear, left and right side faces of the supporting mechanism; then a linear array camera isadopted to conduct linear array scanning imaging on a bottom area of the supporting mechanism; and five angle images of the supporting mechanism can be obtained simultaneously, and more abundant image data can be provided for defect detection of the supporting mechanism.

Description

technical field [0001] The invention belongs to the technical field of railway safety patrol inspection, in particular to a defect detection imaging system of a railway catenary support mechanism. Background technique [0002] The railway catenary provides power transmission for electrified trains and is the blood of train operation. The railway catenary support mechanism is used to suspend and support the transmission conductors. In the process of railway operation and maintenance, it is necessary to regularly carry out safety inspections on the support mechanism. The main contents of the safety inspection include: whether the fasteners are loose, whether the insulator is damaged, whether the nuts or bolts are missing, etc. The railway mileage is long and the window time during the railway operation is short. It is difficult and time-consuming to detect the defects of the catenary support mechanism manually. [0003] With the development of digital imaging and image proc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/88G01M11/00B61K9/08
CPCG01N21/8851B61K9/08G01M11/00G01N2021/8887
Inventor 不公告发明人
Owner 成都精工华耀科技有限公司
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