CN110618137A - DM code sideline flaw detection system based on vision technology - Google Patents
DM code sideline flaw detection system based on vision technology Download PDFInfo
- Publication number
- CN110618137A CN110618137A CN201911027341.7A CN201911027341A CN110618137A CN 110618137 A CN110618137 A CN 110618137A CN 201911027341 A CN201911027341 A CN 201911027341A CN 110618137 A CN110618137 A CN 110618137A
- Authority
- CN
- China
- Prior art keywords
- detection
- code
- system based
- detection system
- shooting module
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Image Analysis (AREA)
Abstract
The invention relates to the technical field of flaw detection, and particularly discloses a DM code edge line flaw detection system based on a vision technology, which comprises the following steps: the shooting module is used for acquiring a DM code image; the detection platform is used for placing a product and is driven to move at a constant speed; the shooting module moves perpendicular to the motion direction of the detection platform. The invention is used for detecting the side lines of DM codes on products, uniformly placing the products on the detection platform at intervals, acquiring images of the DM codes by using the shooting module, realizing continuous detection by using the uniform motion of the detection platform, ensuring the detection environment through the light source, improving the definition of the acquired images, ensuring the best acquisition effect by keeping the detection surface and the shooting surface parallel, keeping the L side directions of all the DM codes of the products consistent, not needing to switch the shooting module during detection, and improving the detection efficiency.
Description
Technical Field
The invention relates to the technical field of flaw detection, in particular to a DM code edge line flaw detection system based on a vision technology.
Background
The DM code, namely the Datamatrix two-dimensional code, is a matrix two-dimensional bar code, has very wide application in the industrial manufacturing field and the civil field, can be used for anti-counterfeiting and overall identification of commodities, and has important significance.
However, the boundary flaws of the DM code affect whether the DM code is readable, so that the quality of the DM code can be judged by detecting the boundary flaws of the DM code, but the existing flaw detection process often has the problems of low efficiency, unclear acquired image of the DM code, and the like.
Disclosure of Invention
The invention aims to provide a DM code edge defect detection system based on a vision technology, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a DM code edge defect detection system based on a vision technology comprises:
the shooting module is used for acquiring a DM code image;
the detection platform is used for placing a product and is driven to move at a constant speed;
the shooting module moves perpendicular to the motion direction of the detection platform.
As a further scheme of the invention: the shooting module comprises a camera, a lens and a light source.
As a further scheme of the invention: the camera lens is installed in the bottom of camera, the light source with camera, camera lens are located the same axis.
As a further scheme of the invention: the vertical working distance between the lens and the detection platform is 255-265 mm.
As a further scheme of the invention: the vertical working distance between the light source and the detection platform is 95-105 mm.
As a further scheme of the invention: the DM code detection surface of the product is parallel to the shooting surface of the lens, and the position offset of the product is smaller than 2mm during detection.
As a further scheme of the invention: the DM code L edge orientation of the product is consistent.
As a further scheme of the invention: the detection beat of the shooting module is 1 time of detecting 4 DM codes, and the time is 240 ms.
Compared with the prior art, the invention has the beneficial effects that:
1. this DM code sideline flaw detection system based on vision technique for the sideline of DM code on the detection product evenly places the product interval on testing platform, utilizes the image of shooting module collection DM code, utilizes testing platform's uniform velocity motion to realize continuous detection, has improved detection efficiency.
2. Utilize the camera to gather, the light source has guaranteed the testing environment, has improved the definition of gathering the image, keeps the parallelism with shooting the face through detecting the face, guarantees to reach best collection effect, keeps the L limit orientation of all product DM yards unanimous, need not switch the shooting module when detecting, improves detection efficiency.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention.
Fig. 1 is a schematic view of the installation of a DM code edge defect detection system based on a vision technology.
In the figure: 1-detection platform, 2-light source, 3-camera, 4-lens.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1
Referring to fig. 1, in an embodiment of the invention, a DM code edge defect detection system based on a vision technique includes: the shooting module is used for acquiring a DM code image; the detection platform 1 is used for placing a product, and the detection platform 1 is driven to move at a constant speed; the shooting module moves perpendicular to the movement direction of the detection platform 1.
This DM code sideline flaw detection system based on vision technique for the sideline of DM code on the detection product evenly places the product interval on testing platform 1, utilizes the image of shooting module collection DM code, utilizes testing platform 1's uniform velocity motion to realize continuous detection, has improved detection efficiency.
Further, the photographing module includes a camera 3, a lens 4, and a light source 2.
Specifically, the lens 4 is installed at the bottom end of the camera 3, and the light source 2, the camera 3 and the lens 4 are located on the same axis.
The camera 3 is used for collecting, the light source 2 ensures the detection environment, and the definition of collected images is improved.
Further, the vertical working distance between the lens 4 and the detection platform 1 is 255-265 mm.
Further, the vertical working distance between the light source 2 and the detection platform 1 is 95-105 mm.
Further, the DM code detection surface of the product is parallel to the shooting surface of the lens 4, and the position offset of the product is smaller than 2mm during detection.
Further, the DM code L edge orientation of the product is consistent.
The detection surface and the shooting surface are kept parallel, the best acquisition effect can be achieved, the L edge orientations of all product DM codes are kept consistent, the shooting module does not need to be switched during detection, and the detection efficiency is improved.
Example 2
Referring to fig. 1, in yet another embodiment of the present invention, the detection beat of the photographing module is 1 time to detect 4 DM codes, which takes 240 ms.
Further, the resolution of the camera 3 is 500 ten thousand, the working distance of the camera 3 is 260mm, the working distance of the light source 2 is 100mm, and the visual field range of the light source 2 is 100mm × 75 mm.
The electrical components presented in the document are all electrically connected with an external master controller and 220V mains, and the master controller can be a conventional known device controlled by a computer or the like.
In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (8)
1. A DM code edge defect detection system based on a vision technology is characterized by comprising:
the shooting module is used for acquiring a DM code image;
the detection platform (1) is used for placing a product, and the detection platform (1) is driven to move at a constant speed;
the shooting module moves perpendicular to the movement direction of the detection platform (1).
2. The DM code edge defect detection system based on the vision technology as claimed in claim 1, wherein the shooting module comprises a camera (3), a lens (4) and a light source (2).
3. The DM code edge defect detection system based on the vision technology as claimed in claim 2, wherein the lens (4) is installed at the bottom end of the camera (3), and the light source (2) and the camera (3) and the lens (4) are located on the same axis.
4. The DM code edge defect detection system based on the vision technology as claimed in claim 3, wherein the vertical working distance between the lens (4) and the detection platform (1) is 255-265 mm.
5. The DM code edge defect detection system based on the vision technology as claimed in claim 4, wherein the vertical working distance between the light source (2) and the detection platform (1) is 95-105 mm.
6. A DM code edge defect detection system based on the visual technology as claimed in claim 5, wherein the DM code detection surface of the product is parallel to the shooting surface of the lens (4), and the position offset of the product is less than 2mm during detection.
7. The vision-based DM code edge flaw detection system of claim 1, wherein the product has a uniform DM code L-edge orientation.
8. The system for detecting DM code boundary defects based on the vision technology of any one of claims 1 to 6, wherein the detection beat of the shooting module is 1 time for detecting 4 DM codes, which takes 240 ms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911027341.7A CN110618137A (en) | 2019-10-27 | 2019-10-27 | DM code sideline flaw detection system based on vision technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911027341.7A CN110618137A (en) | 2019-10-27 | 2019-10-27 | DM code sideline flaw detection system based on vision technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110618137A true CN110618137A (en) | 2019-12-27 |
Family
ID=68926859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911027341.7A Pending CN110618137A (en) | 2019-10-27 | 2019-10-27 | DM code sideline flaw detection system based on vision technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110618137A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113313226A (en) * | 2021-07-29 | 2021-08-27 | 北京紫光青藤微系统有限公司 | Method and device for determining DM code version information, equipment and storage medium |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6398113B1 (en) * | 1999-12-23 | 2002-06-04 | Ncr Corporation | System and methods for collaborative bar code error detection and correction |
| US20140132729A1 (en) * | 2012-11-15 | 2014-05-15 | Cybernet Systems Corporation | Method and apparatus for camera-based 3d flaw tracking system |
| CN103901044A (en) * | 2012-12-28 | 2014-07-02 | 鸿富锦精密工业（深圳）有限公司 | Detection system |
| CN204759441U (en) * | 2015-07-20 | 2015-11-11 | 北京大恒图像视觉有限公司 | Two -dimensional code check out test set and corresponding detecting system |
| CN105338322A (en) * | 2015-11-19 | 2016-02-17 | 无锡港湾网络科技有限公司 | Machine vision experimental platform and application thereof |
| CN208366871U (en) * | 2018-07-23 | 2019-01-11 | 珠海格力智能装备有限公司 | Detection system |
| CN109724990A (en) * | 2019-01-08 | 2019-05-07 | 上海大学 | The quick positioning and detection method in coding region in a kind of packing box label |
-
2019
- 2019-10-27 CN CN201911027341.7A patent/CN110618137A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6398113B1 (en) * | 1999-12-23 | 2002-06-04 | Ncr Corporation | System and methods for collaborative bar code error detection and correction |
| US20140132729A1 (en) * | 2012-11-15 | 2014-05-15 | Cybernet Systems Corporation | Method and apparatus for camera-based 3d flaw tracking system |
| CN103901044A (en) * | 2012-12-28 | 2014-07-02 | 鸿富锦精密工业（深圳）有限公司 | Detection system |
| CN204759441U (en) * | 2015-07-20 | 2015-11-11 | 北京大恒图像视觉有限公司 | Two -dimensional code check out test set and corresponding detecting system |
| CN105338322A (en) * | 2015-11-19 | 2016-02-17 | 无锡港湾网络科技有限公司 | Machine vision experimental platform and application thereof |
| CN208366871U (en) * | 2018-07-23 | 2019-01-11 | 珠海格力智能装备有限公司 | Detection system |
| CN109724990A (en) * | 2019-01-08 | 2019-05-07 | 上海大学 | The quick positioning and detection method in coding region in a kind of packing box label |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113313226A (en) * | 2021-07-29 | 2021-08-27 | 北京紫光青藤微系统有限公司 | Method and device for determining DM code version information, equipment and storage medium |
| CN113313226B (en) * | 2021-07-29 | 2021-11-02 | 北京紫光青藤微系统有限公司 | Method and device for determining DM code version information, equipment and storage medium |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105548217B (en) | The appearance delection device and detection method of flat glass coated article | |
| CN107678036A (en) | A kind of vehicle-mounted contactless contact net geometric parameter dynamic detection system and method | |
| CN107443428A (en) | A kind of band visual identity flapping articulation manipulator and visual identity method | |
| CN103543161A (en) | On-line detection method of continuous casting billet surface quality | |
| CN103630544B (en) | A kind of vision on-line detecting system | |
| CN202255299U (en) | Solder paste thickness testing device | |
| CN201570231U (en) | Detection device of electro luminescence display screen | |
| CN103837552A (en) | System for detecting apparent defects on protective glass of touch screen | |
| CN104483320A (en) | Digitized defect detection device and detection method of industrial denitration catalyst | |
| CN101936919A (en) | Computer vision based glass quality detection device and measuring method thereof | |
| CN112858321A (en) | Steel plate surface defect detection system and method based on linear array CCD | |
| CN103344183A (en) | Sugar size detection device and method | |
| CN110618137A (en) | DM code sideline flaw detection system based on vision technology | |
| CN104384902A (en) | Press fit system based on machine vision positioning | |
| CN209247650U (en) | Product quality on-line measuring device | |
| CN205008255U (en) | Bearing on -line automatic detection system | |
| CN208505917U (en) | A kind of cloth defect detecting system based on machine vision | |
| CN204366365U (en) | A kind of machine vision location pressing system | |
| CN207449668U (en) | Rigid suspended contact line based on area array CCD is disengaged from the groove on-line measuring device | |
| CN105301016A (en) | Image detection method for scratches of wheel tread | |
| CN114878585A (en) | Large-breadth silk screen defect detection device | |
| CN210154538U (en) | Metal structure deformation measuring device based on machine vision | |
| CN206960380U (en) | A kind of image collecting device of cylindrical shape product | |
| CN110823909B (en) | Multi-light-source compensation spring defect detection system and detection method | |
| CN209280586U (en) | A kind of medicine bottle bottom pull ring defect detecting device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20191227 |
|
| WD01 | Invention patent application deemed withdrawn after publication |