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Displacement deformation measuring device and method based on PSD and laser ranging

A technology of laser ranging and measuring devices, which is applied in the direction of measuring devices, optical devices, instruments, etc., can solve the problems of data discontinuity, data analysis influence, etc., and achieve the effect of superior measurement accuracy and high measurement accuracy

Inactive Publication Date: 2019-04-12
CHINA RAILWAY FIRST SURVEY & DESIGN INST GRP
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  • Application Information

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Problems solved by technology

Such a measurement method requires manual measurement of structures such as tunnels and bridges on a regular basis, and the intermittent measurement data is discontinuous, which will have a certain impact on the later data analysis

Method used

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  • Displacement deformation measuring device and method based on PSD and laser ranging
  • Displacement deformation measuring device and method based on PSD and laser ranging
  • Displacement deformation measuring device and method based on PSD and laser ranging

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Embodiment Construction

[0032] The present invention will be described in detail below in combination with specific embodiments.

[0033] The invention relates to a displacement and deformation measuring device based on PSD and laser ranging, which can directly measure the three-dimensional deformation of a building in combination with laser ranging and PSD laser positioning technology. The structure includes a laser emitting end and a laser receiving end; the laser emitting end is provided with a laser rangefinder 1, a semiconductor laser 2 and a control box 4; the laser receiving end is provided with a PSD position sensor 7 installed on the measured object through bolts, that is, the receiving target ; The laser rangefinder 1, the semiconductor laser 2 and the PSD position sensor 7 are all connected to the data transmission interface of the control box 4 through cables.

[0034] The two-way laser beams of the laser rangefinder 1 and the semiconductor laser 2 are irradiated on the PSD position senso...

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Abstract

The invention relates to a displacement deformation measuring device and method based on a PSD and laser ranging. A laser emitting end and a laser receiving end are included; the laser emitting end isprovided with a laser range finder, a semiconductor laser and a control box; the laser receiving end is provided with a PSD position sensor mounted on a measured object; the laser range finder, the semiconductor laser and the PSD position sensor are all connected into a data transmission interface of the control box through cables; two channels of laser beams of the laser range finder and the semiconductor laser are irradiated on the PSD position sensor to form two spots; and when the measured object has displacement changes, lateral position change data are measured by the PSD position sensor, and longitudinal position change data are measured through the laser range finder. By means of the displacement deformation measuring device and method, long-time, real-time and uninterrupted continuous monitoring can be achieved, the measurement precision is high, the speed is high, manual testing on field is avoided, and the data can be transmitted through a wireless network.

Description

technical field [0001] The invention belongs to the technical field of tunnel and bridge monitoring, in particular to a displacement and deformation measurement device and method based on PSD and laser ranging. Background technique [0002] From the application status of comprehensive tunnel and bridge monitoring, it can be seen that most of the currently used monitoring technologies for tunnel and bridge structures and their environment are based on regular testing, and the testing sensors mainly use electrical and optical sensors. For example, total stations or close-range photogrammetry are used to monitor the displacement of tunnels and bridges, and the testing methods are based on regular off-line measurements. Such a measurement method requires manual measurement of structures such as tunnels and bridges on a regular basis, and the intermittent measurement data is discontinuous, which has a certain impact on the later data analysis. Contents of the invention [0003...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B11/16
CPCG01B11/167
Inventor 任晓春唐利孬武瑞宏叶茂王俊清田社权袁永信
Owner CHINA RAILWAY FIRST SURVEY & DESIGN INST GRP
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