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Large large field of view global measurement method using coordinates tracking control board

A technology of tracking control and coordinate tracking, which is applied in the field of visual measurement, and can solve problems such as difficult to measure the occluded part of the measured object, large measurement field of view, and complex on-site environment.

Active Publication Date: 2015-09-09
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 large field of view global measurement method using coordinates tracking control board
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  • Large large field of view global measurement method using coordinates 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] like 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 rel...

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Abstract

This invention provides a large field of view global measurement method using a coordinates tracking control board, belonging to the visual measurement field. The method employs a coordinates tracking control board installed on an adapter bracket, effectively integrates a visual measuring device and a laser tracker under the condition of not sharing a same field of view, and separates and calibrates internal and external parameters of left and right cameras to build an overall coordination system of a measurement scene so as to complete overall measurement based on a large field of view. The method can realize rapid and highly accurate measurement of large parts under a complex operating condition in a large field of view scope, is a measurement mode combining a plurality of types of optical components. The measurement method has the characteristics of large field of view and high efficiency, and can conveniently measure covered parts of target components, and rapidly complete large field of view global measurement in the industrial field.

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 Applications(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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