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Building non-contact settlement monitoring method based on photography total station

A photographic total station and settlement monitoring technology, which is applied in the direction of instruments, measuring devices, surveying and navigation, etc., can solve the problems such as inability to carry out settlement monitoring, and achieve the effect of high field operation efficiency

Active Publication Date: 2019-03-29
天津市勘察设计院集团有限公司
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Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that some super-large and special-shaped buildings cannot be directly contacted and set measurement marks, and then cannot carry out settlement monitoring. It provides a non-contact settlement monitoring method for buildings based on a photographic total station, and provides high precision The monitoring results

Method used

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  • Building non-contact settlement monitoring method based on photography total station
  • Building non-contact settlement monitoring method based on photography total station
  • Building non-contact settlement monitoring method based on photography total station

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Embodiment Construction

[0051] The total station with integrated telephoto lens often has a high cost. In order to make the monitoring method proposed by the present invention available for the general total station, the eyepiece part of the total station is replaced with a CCD image module, so that the general total station has the ability to acquire long function to focus the image. The angle measurement accuracy of the total station is 1″, and the distance measurement accuracy is 1mm+1.5ppm.

[0052] attached figure 1 It is the schematic diagram of settlement monitoring technology. In order to obtain the internal and external orientation elements of the CCD module for photogrammetry to calculate the coordinates of monitoring points, a simple camera calibration based on rotation correction is first performed to quickly obtain internal and external parameters; a forced centering pier is established at the stable bedrock of the measurement site, and the entire station is Set the vertical angle of t...

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Abstract

The invention provides a building non-contact settlement monitoring method based on a photography total station. According to the method, a CCD module is added for a general total station, a buildinglocal feature image is remotely acquired, and elements of interior and exterior orientations of the CCD module are acquired by means of a rotating correction-based simple calibration method; three-dimensional coordinates of a monitoring point are calculated according to a photogrammetry principle added with a plane equation constraint; and monitoring point feature extraction and matching are conducted on various periods of images by adopting an SIFT operator, and various periods of settlement amounts of a building are calculated.

Description

technical field [0001] The invention belongs to the technical field of deformation monitoring, and relates to a method for non-contact building settlement monitoring by using a photographic total station and a photogrammetry method. Background technique [0002] With my country's economic development and continuous expansion of production fields, many large-scale buildings have begun to appear, such as super high-rise office buildings, nuclear power plant containment, tower buildings, etc. These large-scale buildings are very likely to be deformed during the construction, maintenance and operation stages, and the most influential one is settlement, so settlement monitoring must be carried out. The development of settlement monitoring technology relies on technological innovation in the field of deformation monitoring. Traditional technologies include leveling, static leveling, GNSS real-time monitoring, total station triangular elevation method, etc. These methods install se...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C5/00G06T7/00G06T7/33
CPCG01C5/00G06T7/33G06T7/97
Inventor 王震丁乐乐王珍卢奕邢炜光朱大勇魏麟潘宇明马强李蕾孟凡效
Owner 天津市勘察设计院集团有限公司
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