Concrete crack width measuring device and method
A crack width and measuring device technology, applied to measuring devices, optical devices, instruments, etc., can solve the problems of large labor consumption, long time consumption, cumbersome operation, etc., achieve visualization and speed, overcome labor consumption, The effect of high measurement accuracy
Pending Publication Date: 2018-07-06
CCCC FIRST HIGHWAY CONSULTANTS
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Problems solved by technology
[0003] 1) Large labor consumption: manual inspection needs to carry the crack measuring instrument to work, and the operation is cumbersome
[0004] 2) Low measurement speed: the existing crack detection instrument needs a series of operations such as alignment, fine-tuning, and reading, and the speed is slow
[0005] 3) Low efficiency: After the crack passes through the existing crack detection equipment, it is necessary to take pictures and collect evidence, which consumes a long time
Method used
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Embodiment Construction
[0028] The present invention will be described in detail below in combination with specific embodiments.
[0029] The invention relates to a measuring device for the width of concrete cracks, which includes a metal fixing bracket 2 installed at the camera of a smart phone. Two point-shaped laser diodes 1 are installed side by side on the metal fixing bracket 2. The working voltage is 5V and the distance is fixed. Diode 1 is located on either side of the smartphone camera.
[0030] The metal fixing bracket 2 is made of metal to ensure that the bracket has a certain rigidity, and is installed on the smart phone through the magnetic strip 3 pasted near the camera of the smart phone.
[0031] The laser diode 1 is connected with a USB interface 5 for obtaining power from a smart phone through a connection 4 .
[0032] The measuring method based on the concrete crack width of above-mentioned device is realized by the following steps:
[0033] (1) Smartphone connection: A magnetic ...
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The invention relates to a concrete crack width measuring device and method. The concrete crack width measuring device comprises a metal fixed support mounted at a smart phone camera, and two point-like laser diodes are parallelly mounted on the metal fixed support and positioned on two sides of the smart phone camera. The device is based on a smart phone, by the aid of an image processing and identifying method, information detection of bridge cracks is achieved, photos of concrete cracks and laser spots are acquired through the smart phone camera, crack pixels and laser spot pixels are compared and calculated by the aid of an image processing technique, information of detection results is stored into the smart phone, visual and rapid detection can be achieved, the concrete cracks are visually and rapidly detected, and the measuring device is high in measuring accuracy and low in implementation cost and overcomes the shortcomings of high labor consumption and low measuring speed and efficiency in the prior art.
Description
technical field [0001] The invention relates to the technical field of highway bridge detection, in particular to a measuring device and method for concrete crack width. Background technique [0002] Cracks are a typical defect of concrete girder bridges. The traditional inspection of crack width detection mainly relies on manpower using crack measuring instruments, that is, direct inspection by inspectors is the main method, and auxiliary inspection vehicles and measuring tools are used to detect disease information in bridges. This method is more flexible in operation, but has the following disadvantages: [0003] 1) High labor consumption: manual inspection needs to carry a crack measuring instrument to work, and the operation is cumbersome. [0004] 2) Low measurement speed: The existing crack detection instrument needs a series of operations such as alignment, fine-tuning, and reading, and the speed is slow. [0005] 3) Low efficiency: After the crack passes through t...
Claims
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IPC IPC(8): G01B11/14
CPCG01B11/14
Inventor 常丁岳振民刘伟于利存党李涛
Owner CCCC FIRST HIGHWAY CONSULTANTS