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

Visual inspection system

A technology of visual inspection and mounting frame, which is applied in the field of visual inspection system, can solve the problems of low efficiency of lens calibration and achieve the effect of improving versatility and calibration efficiency

Pending Publication Date: 2021-08-10
CHINA RAILWAY CONSTR HEAVY IND
View PDF11 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a visual inspection system to solve the problem of low lens calibration efficiency in the aggregate inspection process

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
  • Visual inspection system
  • Visual inspection system
  • Visual inspection system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0037] see Figure 1 to Figure 6 , a visual inspection system, this embodiment is applied to lens calibration and aggregate inspection of a visual inspection system.

[0038] A visual detection system comprising a blanking unit 1, a calibration unit 2, an image acquisition unit 3 and a control unit; the blanking unit 1, the calibration unit 2 and the image acquisition unit 3 are all connected to the control unit by signals;

[0039] see Figure 1 to Figure 2 , the calibration unit 2 includes a mounting frame 2.1, a mirror 2.2, and a calibration plate 2.3; the calibration plate 2.3 is horizontally arranged on the mounting frame 2.1, and a pattern array with a fixed spacing is provided on the calibration plate 2.3 for visual Calibration of the detection system: the reflective mirror 2.2 is arranged on the mounting frame 2.1, and the reflective mirror 2.2 is located above the calibration plate 2.3, and the reflective mirror 2.2 is at an angle of 45° with the horizontal plane; th...

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 invention provides a visual inspection system. The system comprises a blanking unit, a calibration unit, an image acquisition unit and a control unit, the blanking unit, the calibration unit and the image acquisition unit are all in signal connection with the control unit; the calibration unit comprises a mounting frame, a reflective mirror and a calibration plate; the calibration plate is horizontally arranged on the mounting rack; the reflective mirror is arranged on the mounting frame and located above the calibration plate, and an included angle of 45 degrees is formed between the reflective mirror and the horizontal plane; and the reflective mirror is used for cooperating with the image acquisition unit to realize image acquisition and calibration. The blanking unit, the calibration unit and the image acquisition unit are all in signal connection with the control unit, and an image of a pattern array on a calibration plate is transmitted to the image acquisition unit through a reflective mirror according to a reflection principle; and the calibration plate does not need to be arranged in the aggregate passing area, the image on the calibration plate can be transmitted to the image acquisition unit for automatic calibration, and the calibration efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of industrial detection, in particular to a visual detection system. Background technique [0002] At present, in the image calibration and gravel detection work in the field of industrial inspection technology, the purpose of calibration work is to correct lens distortion and determine the conversion relationship between physical size and pixel. Especially in the gravel production line, when inspecting aggregates of different specifications, due to the different field of view required, it is necessary to replace the appropriate lens for inspection, and calibration is required every time the lens is replaced. This stage is crucial to the subsequent detection. If the calibration is not good, the image detection results will be inaccurate, which will affect the judgment of the quality of the finished aggregate. [0003] At present, the calibration work of the lens is generally carried out manually, the calibr...

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): G01N21/84G06T7/80
CPCG01N21/84G06T7/80G01N2021/015
Inventor 刘飞香廖金军王金锋秦念稳胡星科王旭
Owner CHINA RAILWAY CONSTR HEAVY IND
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