Hard disk part detection device and detection method

A component and hard disk technology, applied in the field of hard disk component detection devices, can solve the problems of ignoring the importance of active structure lighting environment conditions, etc., and achieve the effects of high accuracy, simple operation, and simple detection algorithm

Pending Publication Date: 2021-02-09
CHANGZHOU COLLEGE OF INFORMATION TECH
View PDF0 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Even so, there is still a certain gap between the accuracy rate and the requirements of practical applications in practical applications. Solving the contradiction between accurate recognition and fuzzy features, real-time and accuracy has always been the main focus of algorithm research, but Ignoring the importance of actively constructing lighting environment conditions, some defects in practical applications will only appear under suitable lighting conditions

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
  • Hard disk part detection device and detection method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] In order to deepen the understanding of the present invention, the present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments, which are only used to explain the present invention and do not limit the protection scope of the present invention.

[0020] This embodiment provides a defect detection device for hard disk parts, including a workbench module, a lighting module, an imaging module, and a software module. The workbench module includes an equipment support platform 1, and a column 2 is arranged on the equipment support platform 1. The lighting module includes a lifting motor (not shown in the figure), a bar-shaped light source 3 and a light source support frame 4, the bar-shaped light source 3 is clamped on the extension end of the light source support frame 4, and the bar-shaped light source 3 illuminates The determination of the direction avoids the reflected light from directly incident on the mirror...

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 hard disk part detection device and a hard disk part detection method, which can realize detection of different types of defects of a hard disk part, improve the product yield level, and solve the problem that some defects can only be displayed in an image at a specific lighting angle. Therefore, an electric control rotary workpiece table, an electric control light sourcelifting table and a matched image analysis algorithm are specially designed, the detection automation level is improved, and missing detection is avoided; the workpiece table is controlled through software coordination to achieve rotation of a given angle value, and an angle image is collected; And registering of the images with different rotation angles is achieved by using the rotation angle value, a gravity center algorithm and an image correlation matching algorithm. Some defects can only be displayed in the images at a specific lighting angle, so that the registered images have difference in defect positions, and the gray value difference is extracted to realize defect detection.

Description

technical field [0001] The invention relates to the field of electronic technology, in particular to a machine vision-based defect detection device and a matching detection method, in particular to a hard disk part detection device and detection method. Background technique [0002] Product appearance defects will seriously affect the purchase experience. The work of defect detection has been paid more and more attention, and the detection requirements have become higher and higher. Among them, machine vision detection is an important means to realize automatic monitoring and reduce labor intensity. [0003] At present, there are many papers and patents on machine vision to realize defect detection in the literature, and a series of excellent algorithms have been developed. Even so, there is still a certain gap between the accuracy rate and the requirements of practical applications in practical applications. Solving the contradiction between accurate recognition and fuzzy f...

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): G01N21/95G01N21/88G06T7/00G06T7/32
CPCG01N21/8806G01N21/8851G01N21/95G06T7/0002G06T2207/10004G06T2207/30168G06T7/32
Inventor 赵倩倩戴宜全王二化
Owner CHANGZHOU COLLEGE OF INFORMATION TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap