Detection device for detecting cracks in bottom surface of bridge

A detection device and bridge technology, which is applied to measurement devices, electrical devices, electromagnetic measurement devices, etc., can solve the problems of being easily affected by subjective factors, relying on personal experience, and high requirements for cameras, so as to reduce shooting costs and save money. Labor cost and the effect of improving detection efficiency

Active Publication Date: 2018-07-06
JIANGSU ZHONGLU ENG DETECTION CO LTD
View PDF7 Cites 15 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Manual inspection is mainly to observe the cracks at the bottom of the bridge through a telescope, or to observe the cracks on the bottom of the bridge with the naked eye at close range by building a platform at the bottom of the bridge, record the length and width of the cracks, and judge the growth of cracks through multiple inspections However, this detection method relies on personal experience, is easily affected by subjective factors, and has low detection efficiency; the bridge inspection vehicle mainly moves along the extension direction of the bridge, uses the camera to take pictures, and judges whether there are cracks. The detection accuracy depends on the accuracy of image matching, and the requirements for the camera are very high, and it is not suitable for large-span and irregular cracks

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Detection device for detecting cracks in bottom surface of bridge
  • Detection device for detecting cracks in bottom surface of bridge

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Most of the crack detection methods in the prior art have problems such as low detection accuracy and poor adaptability. The present invention proposes a detection device for cracks on the bottom of bridges. The detection components include several cameras and ground-penetrating radars. Preliminary detection; when a crack is detected, the controller unit first generates the walking track of the crawling support platform according to the image captured by the camera, and then drives the crawling support platform to move along the walking track to the crack to detect the width and depth of the crack. Not only can it be applied to the detection of large-span and irregular cracks, but it also greatly improves the detection accuracy and provides a strong guarantee for the prediction of bridge road surface disasters; the whole process is automatically processed without manual participation, which greatly saves labor costs.

[0033] Specifically, such as Figure 1-2 As shown, ...

Embodiment 2

[0043] Based on Embodiment 1, in order to improve detection efficiency, reduce detection power consumption, and prolong detection time, the detection device for cracks on the bottom surface of the bridge also includes two distance sensors 10, and the two distance sensors 10 are respectively arranged on the crawling support platform 5, when the crack detection is completed, the two distance sensors 10 send detection signals respectively, and the controller unit 8 judges the first electromagnet 7 that is closer to the crawling support platform 5, and then controls the crawling support platform 5 Move to the position where the first electromagnet 7 is located, and then start the first electromagnet 7 and the second electromagnet to realize fixing the crawling support platform 5 on the support frame 2 .

Embodiment 3

[0045] Based on Embodiment 1 or Embodiment 2, in order to be able to detect at night, the detection device for cracks on the bottom surface of the bridge also includes several lighting lamps (not shown in the figure), the number of the lighting lamps is the number of cameras 4 twice, every two illuminating lights are installed on both sides of a camera 4 respectively.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a detection device for detecting cracks in the bottom surface of a bridge. The detection device comprises two walking rails, a supporting assembly, a detection assembly and a controller unit, wherein the supporting assembly comprises a supporting frame and a driving mechanism; the supporting frame is arranged between the walking rails and is driven by the driving mechanismto move along the walking rails; the detection assembly comprises a plurality of cameras, a crawling supporting table and a ground penetrating radar fixed to the crawling supporting table; the plurality of cameras are equidistantly arranged on the supporting frame; the crawling supporting table is movably connected with the supporting frame; the controller unit receives and judges images shot by all the cameras, generates a walking trajectory of the crawling supporting table when cracks in the bottom surface of the bridge are determined, then controls the crawling supporting table to walk along the walking trajectory, detects the depths and the widths of the cracks of the bridge through the ground penetrating radar, and saves data. The detection device achieves automatic detection, has high detection precision, and is applicable to detection of the large-span and irregular cracks.

Description

technical field [0001] The invention belongs to the technical field of bridge detection, and in particular relates to a detection device for cracks on the bottom surface of bridges. Background technique [0002] Cracks on the surface of the bridge mean that structural damage has occurred inside the bridge, and outside water vapor can easily enter the interior of the bridge, thereby accelerating the corrosion of steel bars, which in turn leads to a decrease in the bearing capacity of the bridge, seriously affecting people's safe travel. Therefore, capturing and inspecting cracks on the surface of bridges in time is of great significance for predicting or discovering engineering dangers in time, ensuring reliable operation of bridges and prolonging the service life of bridges. [0003] Bridge inspection in the prior art mainly includes two methods: manual inspection and bridge inspection vehicle inspection. Manual inspection is mainly to observe the cracks at the bottom of th...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/88G01B7/02G01B7/26G01S19/42
CPCG01B7/02G01B7/26G01N21/88G01S19/42
Inventor 孙雪伟杨响
Owner JIANGSU ZHONGLU ENG DETECTION CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap