Smart mobile phone-based pavement crack detection device and detection method

A technology for smartphones and road surface cracks, which is applied in sub-bureau equipment, measuring devices, telephone communications, etc., can solve the problems of high labor intensity of testers, improve detection efficiency and accuracy of detection data, facilitate popularization and use, and save energy Effect

Inactive Publication Date: 2018-11-13
云南富龙高速公路建设指挥部 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The traditional pavement crack detection method is to determine the width of the pavement crack. It is necessary to place a ruler or other rulers

Method used

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  • Smart mobile phone-based pavement crack detection device and detection method
  • Smart mobile phone-based pavement crack detection device and detection method
  • Smart mobile phone-based pavement crack detection device and detection method

Examples

Experimental program
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Example Embodiment

[0040] Example 1

[0041] like figure 1 The shown a kind of road surface crack detection equipment based on smart phone, comprises wheel type range finder, smart phone 1, smart phone fixing clip 2, smart phone power supply system and line control camera system, described smart phone fixing clip 2 is installed on The lower end of the wheel rangefinder handle bar 3, the smart phone fixing clip 2 is located at the center of the wheel range finder test wheel 4, the smart phone 1 is installed on the smart phone fixing clip 2, the smart phone 1 The road surface crack image processing application program is installed in it; the smart phone power supply system includes a battery fixing clip 5, a battery 6 and a USB data line 7, and the battery 6 is installed on the battery fixing clip 5, and the battery fixing clip 5 is installed on the On the handle bar 3 of the wheeled rangefinder, one end of the USB data line 7 is connected to the battery 6, and the other end of the USB data line ...

Example Embodiment

[0050] Example 2

[0051] In this embodiment, the method for detecting pavement cracks using the smart phone-based pavement crack detection device described in Embodiment 1 includes the following steps:

[0052] Step 1, pixel calibration, the process of pixel calibration is:

[0053] Step 101, placing a calibration plate of known physical size on the road surface, such as image 3 As shown, the actual length of the small square on the calibration board is 2.75cm;

[0054] Step 102, start the road surface crack image processing application program, control the wheeled distance meter handle 8 so that the camera of the smart phone 1 is facing the calibration block, and press the camera button 9 to take pictures of the calibration block;

[0055] Step 103: The application program for image processing of pavement cracks automatically identifies the number of pixels of the calibration block in the photo, and divides the physical size of the calibration block by the number of pixel...

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Abstract

The invention discloses a smart mobile phone-based pavement crack detection device. The device comprises a wheel type range finder, a smart mobile phone, a smart mobile phone fixing clip, a smart mobile phone power supply system and a drive-by-wire photographing system; the smart mobile phone fixing clip is installed at the lower end of the handlebar of the wheel type range finder and is located at the center of the test wheel of the wheel type range finder; a pavement crack image processing application is installed in the smart mobile phone; the smart mobile phone power supply system includesa battery fixing clip, a battery and a USB data cable; two ends of the USB data cable are respectively connected with the battery and the charging interface of the smart mobile phone; the drive-by-wire photographing system includes a photographing button, a PCB connecting wire and a drive-by-wire joint; and two ends of the PCB connecting wire are respectively connected with the photographing button and the drive-by-wire joint. The invention also provides a method for detecting pavement cracks by using the smart mobile phone-based pavement crack detection device. The device and the method of the invention have the advantages of simple detection process, high detection efficiency, high detection accuracy, and low labor intensity.

Description

technical field [0001] The invention belongs to the technical field of pavement crack detection, and in particular relates to a smart phone-based pavement crack detection device and detection method. Background technique [0002] With the rapid development of my country's transportation industry, a network of trunk roads with expressways as the skeleton has basically formed, and the mileage of highways has continued to increase. As of the end of 2016, the total mileage of expressways has reached 132,000 kilometers, and road surface diseases of varying degrees have appeared in a large number of expressway sections, among which pavement cracks are one of the main forms of road surface diseases. It is of great significance to observe pavement cracks, analyze data, and take appropriate treatment measures for diseased pavement. Traditional pavement crack detection mainly uses ruler and tape measure. The ruler is used to measure the width of pavement cracks, and the tape measure ...

Claims

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Application Information

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IPC IPC(8): G01B11/02G01B11/14H04M1/725
CPCG01B11/02G01B11/14H04M1/72403
Inventor 刘红瑛唐成李国锋郝培文俞韶秋冯恩耀徐金枝常睿李文辉马国民
Owner 云南富龙高速公路建设指挥部
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