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Automatic detection device and identification method for integrality of guardrail of high-speed railway line

A technology of integrity detection and identification method, which is applied in the direction of optical testing for defects/defects, can solve problems such as low detection speed, small detection range, and poor reliability, and achieve the effects of strong applicability, fast detection speed, and large detection range

Active Publication Date: 2013-10-23
BEIJING JIAOTONG UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of the problems existing in the prior art, the purpose of the present invention is to overcome the deficiencies of the prior art and provide a high-speed railway line guardrail integrity automatic detection device, which solves the problems of the prior art such as small detection range and detection speed. Insufficiencies such as low reliability and poor reliability; and systematic management of test results, speeding up the speed of reflecting test results to the maintenance department

Method used

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  • Automatic detection device and identification method for integrality of guardrail of high-speed railway line
  • Automatic detection device and identification method for integrality of guardrail of high-speed railway line
  • Automatic detection device and identification method for integrality of guardrail of high-speed railway line

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Embodiment 1

[0050] An embodiment of the present invention will be introduced below, which can be used for integrity detection of cement railing type guardrails.

[0051] Such as figure 1 As shown, the present invention includes a guardrail integrity detection computer 1, two digital cameras 2 and 3, a rotational speed sensor 4, a test result management computer 5, a wireless data transceiver module 6, a group of lighting devices 7, and An image acquisition card 11 and a data acquisition card 12 installed in the computer 1.

[0052] The guardrail integrity detection computer 1 of the present invention is equipped with an image acquisition card 11 and a data acquisition card 12 inside. The image acquisition card 11 collects the images output by the digital cameras 2 and 3 and stores them in the memory of the computer 1, and the recognition software running on the computer 1 judges the integrity of the guardrail by processing the images.

[0053] In the present embodiment, digital cameras ...

Embodiment 2

[0065] On the basis of Example 1, firstly, the column area is extracted from the inner area of ​​the guardrail extracted in the third step by using the local threshold segmentation method. Then the region is processed by morphological expansion, and finally the connected region is screened. The extracted column results are as follows Figure 5 shown.

[0066] Judge the integrity of the internal columns of the guardrail. Since the previous step only extracts the complete inner column of the guardrail, if there is a defect in the column, it will not be able to be extracted, such as Figure 6 shown. Therefore, the integrity of the internal columns of the guardrail can be judged only by judging the number of uprights extracted in the previous step and / or the interval between adjacent uprights.

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Abstract

The invention discloses an automatic detection device for integrality of a guardrail of a high-speed railway line, which comprises a computer for detecting the integrality of the guardrail, and is internally provided with an image acquisition card, a data acquisition card, identification software and a detection result management computer, wherein the image acquisition card is used for acquiring and storing output images of digital cameras on the two sides of a train; the data acquisition card is used for acquiring output signals of speed sensors arranged on wheels of the train; the identification software is used for carrying out integrality processing judgment on the images and processing and positioning the signals; and the detection result management computer is connected with the computer for detecting the integrality of the guardrail through network, is internally provided with a detection result management information system, and comprises a guardrail defect information data base for storing guardrail defect information transmitted by the computer for detecting the integrality of the guardrail through the network. The invention also provides an identification method for identifying and judging the integrality of the guardrail of the high-speed railway line, including the integrality of stand columns in the guardrail. The automatic detection device and the identification method for the integrality of the guardrail of high-speed railway line has large detection range, stronger applicability, reliable identification method, fast detection speed and a simple structure.

Description

technical field [0001] The invention belongs to the field of high-speed railway infrastructure detection, in particular to an automatic detection device for the integrity of high-speed railway line guardrails, and an identification method for identification software applied to the automatic detection device. Background technique [0002] Guardrails are important isolation facilities on both sides of high-speed railway lines, and some guardrails also have the function of sound barriers. The lack or damage of the guardrail will affect the operation safety of the high-speed railway and the living environment of the surrounding residents. The guardrail integrity inspection device is to find out where the guardrail is missing so that it can be repaired in time. Traditionally, guardrail integrity is checked manually, which is extremely inefficient. Wang Yao's master's degree thesis "Research on Intelligent Recognition Technology of Environmental State of High-speed Railway Line ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/88
Inventor 郭保青余祖俊朱力强史红梅王尧杨超李海浪
Owner BEIJING JIAOTONG UNIV