Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Ship steel plate curved surface dimension on-line measurement system and method

A measurement system and measurement method technology, applied in measurement devices, instruments, optical devices, etc., can solve the problems of inability to realize the surface fitting and detection of ship steel plates, and no online detection function, so as to improve the automation level and efficiency, reduce The effect of human intervention

Inactive Publication Date: 2016-07-20
JIANGSU UNIV OF SCI & TECH
View PDF4 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an online measurement system and method for the curved surface size of ship steel plates, which combines machine vision and total station measurement technology, and overcomes that the method based on total station in the prior art can only complete dozens of key points. The measurement of point data and the defect that most of the work is done manually can realize the detection and analysis of the coordinate accuracy of the key points on the surface segment, and solve the problem that the existing technology cannot realize the fitting and detection of the ship steel plate surface without online detection function problem

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Ship steel plate curved surface dimension on-line measurement system and method
  • Ship steel plate curved surface dimension on-line measurement system and method
  • Ship steel plate curved surface dimension on-line measurement system and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0042] Such as figure 1Shown is a schematic diagram of the system structure of an embodiment of the present invention. Wherein, 1 is an image acquisition part, including a CCD camera 1-1 and a total station 1-2. Measurement part 2 includes: image processing module 2-1, image point automatic matching module 2-2, self-checking beam adjustment module 2-3, three-dimensional data display module 2-4, parameter design module 2-5, PAD2- 6. Three-dimensional data deviation analysis module 2-7, 3D graphic on-site synchronous display module 2-8. The general control part 3 includes: a surface fitting module 3-1, an accuracy analysis module 3-2, and an error feedback analysis module 3-3. The entire measurement system is a real-time online measurement system, which can realize the measurement of key points and curved surfaces on the curved surface of the ship's steel plate, greatly improving the measurement efficiency and accuracy of the ship's steel plate.

[0043] The above-mentioned C...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The present invention discloses a ship steel plate curved surface dimension on-line measurement system and method. A method of combining total station automatic measurement and CCD close-range photogrammetry measurement is employed to perform three-dimensional precision measurement of key points. Besides, the CCD close-range photogrammetry measurement is employed to perform the segment measurement of three-dimensional precision of curved surface encoding mark points and non-encoding mark points and perform segment measurement of three-dimensional precision of the curved surface points, the curved surface fitting of the curved surface segment measurement is performed, the three-dimensional model of the curved surface plate is generated, and the three-dimensional model of the curved surface plate is compared with a designed three-dimensional model and is analyzed. According to the invention, the problems are overcome that the method based on the total station only can complete the measurement of data of dozens of key points and a lot of work has to be done by manpower, the precision detection analysis of the coordinates of the key points on the curve surface segment is realized, the problems are solved that the fitting and the detection of the curved surface cannot be completed and there is no online detection function.

Description

technical field [0001] The invention relates to the technical field of three-dimensional measurement of machine vision, in particular to an online measurement system and method for the curved surface size of a ship steel plate. Background technique [0002] At present, in the shipbuilding industry, from the actual production and use of precision measuring instruments and precision management software, the method of total station plus precision management software used in the segmental precision measurement of ship steel plate surface has been maturely used. However, the method based on the total station can only complete the measurement of data of dozens of points, and most of the work is done manually to realize the detection and analysis of the coordinate accuracy of the key points on the surface segment, and cannot realize the fitting and detection of the surface , no online detection function, can not meet the overall requirements of the sub-section line processing of sh...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G01B11/24
CPCG01B11/24
Inventor 卢道华吴兵王佳胡可丽
Owner JIANGSU UNIV OF SCI & TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com