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Small-displacement measuring system in long-distance plane

A measurement system and small displacement technology, applied in measurement devices, instruments, optical devices, etc., can solve problems such as implementation difficulties, and achieve the effect of eliminating the influence of low-frequency atmospheric disturbance and high measurement accuracy

Inactive Publication Date: 2009-02-04
浣石 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This requires high-precision calibration of the camera in advance, which is difficult for field implementation

Method used

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  • Small-displacement measuring system in long-distance plane
  • Small-displacement measuring system in long-distance plane

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Experimental program
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Effect test

Embodiment 2

[0045] Different from the above-mentioned embodiment, the cooperation signs described in this embodiment have five groups, and each group of cooperation signs is fixed on a cooperation sign board, and the described cooperation sign board is fixedly connected with the entity to be tested; in each group of cooperation signs With five cooperation flags P T ,P B ,P L ,P R ,P 0 , the five cooperation signs constitute a plane coordinate, where the reference cooperation sign P 0is the origin of the coordinates, and the cooperation mark P T Located above the origin of the Y axis, the cooperation mark P B is located below the origin of the Y axis, and the cooperation mark P L Located on the left of the origin of the X axis, the cooperation mark P R Be positioned at the right side of X-axis origin; Described digital camera has five frames, and each frame camera corresponds to a group of cooperation signs; Image acquisition card 3 is connected with computer 4 by data line 5; In st...

Embodiment 3

[0047] Different from Embodiment 1, the cooperation signs described in this embodiment have four groups, and each group of cooperation signs is fixed on a cooperation sign board, and the described cooperation sign board is fixedly connected with the entity to be tested; each group of cooperation signs has a total of There are three cooperation signs P 1 ,P 2 ,P 0 , the three cooperation signs constitute a plane coordinate, where the cooperation sign P 1 Located on the X-axis, cooperation mark P 2 Located on the Y axis, refer to the cooperation mark P 0 It is the origin; said digital camera has three frames, and each camera corresponds to a group of cooperation marks; the image acquisition card 3 is connected with the computer 4 through the data line 5; the computer 4 receives and stores the initial state image in the step b) in the step d) Data, accurately extract the center position of the cooperation logo, and calculate the cooperation logo P on the image 0 ,P 1 The di...

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Abstract

A system for measuring small displacement in remote a coplane is prepared as firm-joining cooperation mark with entity to be measured and connecting digital camera to image collection card being connected with computer for calculating out displacement data of cooperation mark then calculating out actual displacement amount of position to be measured.

Description

technical field [0001] The invention relates to a long-distance in-plane small displacement measurement system. Background technique [0002] Existing systems for measuring displacements such as building settlements can be classified into contact measurement systems and non-contact measurement systems. [0003] The practice of the contact measurement system is to paste the strain gauge at the position to be measured, directly measure the strain, and then convert it into displacement. In field operations, this method is cumbersome to implement, and to obtain high-precision results, the requirements for patch technology are very high. [0004] The non-contact measurement system is a method of light measurement. One of them is to use a total station. The total station can read the azimuth and distance of the target at the same time, so it can obtain the three-dimensional displacement of the target to be measured. However, in order to achieve high precision in long-distance ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B11/02G01B21/02
Inventor 浣石于起峰
Owner 浣石
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