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

Dynamic surface defect optical detection system and method

A defect optics and detection system technology, applied in the field of optical detection, can solve the problems of inability to detect online, low precision, and high environmental requirements, and achieve the effect of improving work efficiency and compatibility.

Pending Publication Date: 2019-06-07
深圳市智能机器人研究院
View PDF0 Cites 14 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

First, based on ultrasonic, ray, electromagnetic eddy current and other detection methods, these methods are characterized by low detection efficiency, low precision and high environmental requirements; second, manual visual inspection is also the current domestic industrial automation production line Compared with the general practice, this method has some problems: low detection efficiency, high false detection rate due to artificial fatigue and other factors, inability to detect online, greatly affected by human experience and subjective factors
But for specular reflection, if a parallel light source is used, the light source and the camera system must be at a fixed angle to form an image.

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
  • Dynamic surface defect optical detection system and method
  • Dynamic surface defect optical detection system and method
  • Dynamic surface defect optical detection system and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Such as image 3 with Figure 8 As shown, this embodiment provides a dynamic optical detection system for surface defects, including an image acquisition module 5, an image processing module, a diffuse reflection light source 7, and a transmission device for transmitting an object to be tested 8, and the transmission device includes a mobile platform 6 and a motion control module for controlling the movement of the mobile platform 6, the image processing module is connected with the image acquisition module 5 and the motion control module respectively, and the diffuse reflection light source 7 is arranged on the top of the mobile platform 6;

[0037] The motion control module is used to control the moving speed of the mobile platform 6 according to the control instruction sent by the image processing module, so that the object to be measured 8 enters the illumination area of ​​the diffuse reflection light source 7;

[0038] The image acquisition module 5 is used to acq...

Embodiment 2

[0061] Such as Figure 9 As shown, the present embodiment provides a dynamic optical detection method for surface defects, comprising the following steps:

[0062] A1. Control the brightness of the diffuse reflection light source;

[0063] A2. Control the movement of the mobile platform so that the object to be measured passes through the illumination area of ​​the diffuse reflection light source;

[0064] A3. Collect the image information of the object to be tested, judge whether to obtain the overall image of the object to be tested according to the image information according to the preset method, and if so, perform image defect analysis according to the image information; otherwise, return to continue to execute step A1.

[0065] The above method uses a diffuse reflection light source to realize the image acquisition module to completely photograph the object to be measured at a large angle, and solves the problem of photographing the object to be measured by adjusting 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 discloses a dynamic surface defect optical detection system and method. The system comprises an image acquisition module, an image processing module, a diffuse reflection light source and a conveyor device for conveying an object to be measured. The conveyor device comprises a mobile platform and a motion control module for controlling motion of the mobile platform. The image processing module is connected with the image acquisition module and the motion control module; the diffuse reflection light source is arranged above the mobile platform; the motion control module is used for controlling the moving speed of the mobile platform according to a control instruction; the image acquisition module is used for collecting image information of the object to be measured; and the image processing module is used for sending the control instruction to the motion control module and carrying out processing and defect analysis according to image information. Through the diffuse reflection light source, the system can completely capture the object to be measured at a large angle through the image acquisition module, meets optical detection of defects of different shapes of objectsto be measured, and can be widely applied to the optical detection field.

Description

technical field [0001] The invention relates to the field of optical detection, in particular to a dynamic surface defect optical detection system and method. Background technique [0002] With the development of industrial technology, people have higher and higher requirements on the appearance of products, and the design of workpieces has become more and more complicated. The surface defects of industrial products will have a negative impact on the aesthetics and usability of the product. The appearance defect detection of parts is an essential part of the industrial production process. Existing surface defect detection mainly adopts three methods. First, based on ultrasonic, ray, electromagnetic eddy current and other detection methods, these methods are characterized by low detection efficiency, low precision and high environmental requirements; second, manual visual inspection is the current domestic industrial automation production line Compared with the general pra...

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): G01N21/88G01N21/956G01N21/01
Inventor 陈亮亮郑爽吴海龙钟潇楚席宁
Owner 深圳市智能机器人研究院
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