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A measurement method of a structural six-degree-of-freedom motion measurement system based on binocular vision

A measurement method and binocular vision technology, applied in measurement devices, instruments, optical devices, etc., can solve the problems of low measurement accuracy, high cost, complicated operation, etc., and achieve the effect of improving measurement accuracy and eliminating errors.

Active Publication Date: 2022-07-05
HARBIN INST OF TECH
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Problems solved by technology

[0005] The purpose of the invention is to solve the problems of inconvenient technical operation, low measurement accuracy, high cost, low applicability, complicated operation and poor engineering practicability when the traditional measurement method deals with six-degree-of-freedom motion measurement. Measuring method of structural six-degree-of-freedom motion measurement system for binocular vision

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  • A measurement method of a structural six-degree-of-freedom motion measurement system based on binocular vision
  • A measurement method of a structural six-degree-of-freedom motion measurement system based on binocular vision
  • A measurement method of a structural six-degree-of-freedom motion measurement system based on binocular vision

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Embodiment Construction

[0053] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0054] A measurement method for a structural six-degree-of-freedom motion measurement system based on binocular vision, the measurement system includes two cameras and a computer, the two cameras are connected with a computer through a network cable, and the computer is connected with a synchronization trigger , send the acquisition signal to the camera synchronously through the computer-controlled synchronization trigger;

[0055] Th...

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Abstract

The invention discloses a binocular vision-based structural six-degree-of-freedom motion measurement system and a measurement method thereof. Step 1: Paste a circular target on the surface of the structure, and arrange at least three measuring points with the center of the circular target as the measuring point; Step 2: Use the checkerboard calibration method to calibrate the vision measurement system; Step 3: Use two cameras to capture the movement of the target ; Step 4: optimize the image point coordinates of the target motion captured in step 3; Step 5: complete the six-degree-of-freedom measurement of the structure. In order to solve the problems of inconvenient technical operation, low measurement accuracy, high cost, low applicability, complex operation and poor engineering practicability when the traditional measurement method handles six-degree-of-freedom motion measurement.

Description

technical field [0001] The invention belongs to the technical field of structural six-degree-of-freedom motion measurement, and particularly relates to a measurement method for a structural six-degree-of-freedom motion measuring system based on binocular vision. Background technique [0002] At present, measurement methods can be divided into contact measurement and non-contact measurement. The measurement methods such as pull-wire displacement meter, dial indicator, linear variable differential pressure sensor are common contact measurement methods. These methods have high precision and high reliability, but these methods have troublesome sensor layout. , low efficiency, greatly affected by the site and the environment. When the measurement conditions are harsh, such as severe deformation of components, high temperature or severe temperature changes, the accuracy of the contact sensor is difficult to guarantee. [0003] Non-contact measurement is not in direct contact wit...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B11/02G01B11/26
CPCG01B11/028G01B11/26G01B21/042
Inventor 单宝华熊亚凡
Owner HARBIN INST OF TECH
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