Method for realizing high-rise deflection monitoring based on laser spot center positioning mode

A center positioning and laser spot technology, applied in the field of measurement, can solve the problems of high cost of intelligent total stations, wide sources of GPS data errors, and difficult data processing
CN112683172AActive Publication Date: 2021-04-20CHINA SHENHUA ENERGY CO LTD +2
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
CHINA SHENHUA ENERGY CO LTD
Publication Date
2021-04-20

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Abstract

The invention discloses a method for realizing high-rise deflection monitoring based on a laser spot center positioning mode. The method comprises the following steps: S1, calibrating a camera in an image acquisition system; S2, dismounting a checkerboard target, and mounting an optical screen, namely, a semitransparent acrylic plate, at a high position of a to-be-detected building; S3, capturing pictures with light spot position information in real time on the side, far away from the laser, of the acrylic plate by the camera, and transmitting the pictures to a computer terminal; and S4, the computer terminal analyzes the obtained pictures with the light spots. According to the invention, the laser, the CMOS camera, contour fitting and a template matching algorithm are combined to develop an online detection scheme of high-rise building deflection, and high-precision monitoring of high-rise building deflection is realized by utilizing the characteristic that the laser propagates along a straight line.
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Description

technical field

[0001] The present application relates to the field of measurement technology, and in particular to a method for realizing deflection monitoring of tall buildings based on laser spot center positioning. Background technique

[0002] With the strengthening of economic strength, there are more and more high-rise buildings. High-rise buildings will undergo vibration deformation and slow pseudo-static deformation under the influence of external factors such as loads, strong winds, and temperature changes. The amount of deformation directly affects their safety and health. Evaluating the health status of high-rise buildings and avoiding catastrophic accidents is of great significance to the assessment of building safety operation capabilities, structural design parameter inspection, and building life assessment.

[0003] At present, conventional sensors for vibration and deformation monitoring of high-rise buildings mainly include accelerometers, inclinometers, a...

Claims

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