Large field of view global measurement method using coordinate tracking control board

A technology of tracking control and coordinate tracking, which is applied in the field of visual measurement, can solve the problems of large measurement field of view, complex site environment, difficult to measure the occluded part of the measured object, etc., and achieve the effect of improving the small field of view

Active Publication Date: 2017-08-01
DALIAN UNIV OF TECH
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Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that the on-site environment is complex in the production and assembly inspection of large aircraft parts in the aviation field, the measurement field of view is large, the commonly used measurement methods have certain limitations, and it is difficult to measure the occluded parts of the measured object.

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  • Large field of view global measurement method using coordinate tracking control board
  • Large field of view global measurement method using coordinate tracking control board
  • Large field of view global measurement method using coordinate tracking control board

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Embodiment Construction

[0035] The specific embodiments of the present invention will be described in detail below in conjunction with the technical solutions and accompanying drawings. This embodiment uses a coordinate tracking control board for global measurement, supplemented by traditional visual measurement equipment, and combined with a laser tracker to complete global measurement based on a large field of view. The turntable 3 used is a circular metal plate with a diameter of 40 mm and a thickness of 3 mm. The left and right cameras 4 and 9 are Viewworks 29 million-pixel full-frame industrial cameras, and the shooting frame rate is 20 Hz.

[0036] 1. Measurement preparation

[0037] Such as figure 1 Shown: First, before calibration, the left camera 4 and the right camera 9 are installed on the two ends of the camera mounting plate 12 according to the needs of shooting, after adjusting the shooting angle, the cameras are fixed, and the left and right cameras 4 and 9 are facing each other The ...

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Abstract

The invention relates to a global measurement method for a large field of view using a coordinate tracking control board, belonging to the field of visual measurement, and relates to a global measurement method for a large field of view using a coordinate tracking control board. This measurement method adopts the coordinate tracking control board installed on the adapter bracket to realize the effective combination of the visual measurement equipment and the laser tracker in the case of non-common field of view, separate and calibrate the internal and external parameters of the left and right cameras, and establish the overall situation of the measurement site Coordinate system, so as to complete the global measurement based on the large field of view. This method can realize rapid and high-precision measurement of large parts and components under complex working conditions within a large field of view, and is a measurement method that combines multiple optical components. The measurement method has a large field of view, high efficiency, and is convenient for measuring the occluded part of the measured part, and quickly completes the global measurement of the large field of view at the industrial site.

Description

technical field [0001] The invention belongs to the field of visual measurement, and relates to a large field of view global measurement method using a coordinate tracking control board. A measurement method for optical components. Background technique [0002] With the continuous growth of the country's comprehensive strength, the application of large aircraft is becoming more and more extensive. The large parts used in the aircraft manufacturing process put forward high requirements for its manufacturing, molding and assembly testing. At this stage, there are mainly the following methods at home and abroad for the measurement of large parts in the aviation field: machine vision method, laser tracker measurement method, indoor GPS measurement method, laser radar measurement method and three-coordinate measurement method. The traditional machine vision method is to obtain the image information of the measured object through machine vision products, and complete the measurem...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B11/00
Inventor 刘巍杨帆张洋李晓东高鹏贾振元高航
Owner DALIAN UNIV OF TECH
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