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Bridge and tunnel damage non-contact detection system and detection method

A detection method and detection system technology, which can be applied to measurement devices, elastic testing, and testing of machine/structural components, etc., can solve the problems of ineffective tracking and measurement of cracks, low measurement efficiency, etc., and avoid cable arrangement work. , Improve work efficiency and reduce workload

Active Publication Date: 2018-06-01
温州市交通工程试验检测有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the deficiencies in the existing technology, the purpose of the present invention is to provide a bridge and tunnel disease detection system and detection method, which can solve the disadvantages of low efficiency of traditional manual contact deflection measurement and no effective means for crack tracking measurement, and provide intelligent bridge structure detection technology. provide support

Method used

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  • Bridge and tunnel damage non-contact detection system and detection method

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Embodiment 1

[0055] A non-contact detection system for bridge and tunnel damage, such as figure 1 As shown, it includes a non-contact detector 1, a laser projection subsystem 2, and a data processor 3 for processing measurement data and presenting data processing results. The non-contact detector 1 includes a high-definition digital camera 11, a telephoto digital camera 12, A prism-free laser range finder 13, a digitally controlled platform 14 and a support 15. Wherein, the telephoto digital camera 12 is connected with the high-definition digital camera 11, and is used to obtain the apparent image of the long-distance structure; the digital control pan-tilt 14 is installed under the high-definition digital camera 11, and is used for the high-definition digital camera 11 to obtain different positions of the bridge and tunnel The image and spatial angle information; the non-prism laser rangefinder 13 is used to measure the physical distance of the detected object.

[0056] The laser project...

Embodiment 2

[0059] A non-contact detection method for bridge and tunnel damage, combining figure 2 , image 3 and Figure 4 As shown, using the above-mentioned bridge-tunnel disease non-contact detection system to operate, the simultaneous or separate detection of disturbances or cracks includes the following steps:

[0060] A disturbance detection steps

[0061] Step A1: Form a laser pointing point through the laser projection subsystem 2, and determine a fixed "reference point" in each preset area by means of laser pointing;

[0062] Step A2: Before loading, use the telephoto digital camera 12 and the high-definition digital camera 11 to obtain the apparent image of the long-distance structure, select the surface reference point, and obtain the physical distance of the detected object through the prismless laser rangefinder 13; 14 Adjust the image and space angle, and the camera detects multiple preset areas through the movement of the pan / tilt;

[0063] Step A3: after loading, use...

Embodiment 3

[0079] A bridge and tunnel disease non-contact detection system, the difference from embodiment 1 is that, as Figure 5 As shown, the UAV system 4 is also included, and the UAV system 4 includes a four-rotor remote control machine 41, a stabilized platform 42, a wireless image transmission communication module 43, and a high-definition camera 44; the high-definition camera 44 is installed through the stabilized platform 42 On the four-rotor remote control machine 41 , the high-definition camera 44 is electrically connected to the wireless image transmission communication module 43 , and the wireless image transmission communication module 43 and the data processor 3 perform image data transmission.

[0080] Corresponding to the above method, step 1 can be replaced by: using the unmanned aerial vehicle system 4 to obtain the physical distance and structural appearance images of the detected object. For the acquisition of images, this can be further assisted by the unmanned aeri...

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Abstract

The invention discloses a bridge and tunnel damage non-contact detection system and a detection method, so as to solve the disadvantages in aspects such as low manual contact-type deflection measurement efficiency and no effective means in crack tracking measurement. A support is provided for intelligence of a bridge structure detection technology. The technical scheme is characterized by comprising a non-contact detector, a laser projection subsystem and a data processor for processing measured data and presenting a data processing result. An image acquisition and image processing mode is adopted to detect bridge and tunnel cracks and deflection.

Description

technical field [0001] The invention relates to the field of detection technology applied to the maintenance of engineering entities by using photogrammetry technology in civil engineering, and in particular to a non-contact detection system and detection method for bridge and tunnel diseases. Background technique [0002] my country is a mountainous country. In order to improve the economic speed of road and railway transportation, road construction in mountainous areas usually takes the form of bridges and tunnels. As of the end of 2013, my country had more than 730,000 bridges and tunnels, ranking first in the world in total length. my country has also become the country with the most tunnels and underground projects, the most complex and the fastest developing in the world. However, with the rapid development of the transportation industry, especially the surge of overweight (overweight, overheight, overwidth, and overlength) vehicles, it has seriously threatened the saf...

Claims

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Application Information

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IPC IPC(8): G01M5/00G01B11/16G01B11/02
CPCG01B11/02G01B11/16G01M5/0008
Inventor 项庆明许友山苏佳轩陈步区赵启林芮挺王国军范宇鑫
Owner 温州市交通工程试验检测有限公司
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