CN108875854B - Two-dimensional code generation system and recognition system - Google Patents
Two-dimensional code generation system and recognition system Download PDFInfo
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- CN108875854B CN108875854B CN201810654862.4A CN201810654862A CN108875854B CN 108875854 B CN108875854 B CN 108875854B CN 201810654862 A CN201810654862 A CN 201810654862A CN 108875854 B CN108875854 B CN 108875854B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K15/00—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers
- G06K15/02—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers using printers
- G06K15/18—Conditioning data for presenting it to the physical printing elements
- G06K15/1848—Generation of the printable image
Abstract
The utility model provides a two-dimensional code generation system for the generation of the two-dimensional code image on transparent material surface, its two-dimensional code that generates can be used for positions such as product packaging, goods shelves, commodity transaction sales counter, antifalsification label, parking area, includes: the receiving part is used for receiving the two-dimensional code data to be printed; an image generating section for generating the two-dimensional code data into a two-dimensional code image; an image inverting unit for color-inverting the code elements of the dimension code image; a first printing section for printing a light color pigment on the reversed black code element on the transparent material; and a second printing unit for printing a color-changing ink on the light-colored pigment printed by the black symbol of the reversed image on the transparent material by the first printing unit, wherein the color-changing ink is transparent at normal temperature and dark after changing the temperature.
Description
Technical Field
The invention relates to a printing mechanism for specific characters, in particular to a printing mechanism for generating a two-dimensional code and a two-dimensional code recognition system.
Background
The two-dimensional code technology is the latest bar code technology and is a comprehensive technology which integrates the technologies of information coding, information transmission, image processing, data encryption and the like and is developed on the basis of the one-dimensional bar code technology. The two-dimensional code can store information in longitudinal and transverse directions, and the storage density is greatly improved. If the one-dimensional code in the standard state is compared with the QR two-dimensional code with the error correction level of M, the information represented by the two-dimensional code under the same area is about 80 times of that of the one-dimensional code.
With the continuous rapid development of the mobile internet, the application of the two-dimensional code is more and more extensive, the research on the two-dimensional code technology is more and more deep, and the two-dimensional code technology is further developed to a deeper and wider direction by the fusion of the two-dimensional code technology and other technologies. Due to the low-cost manufacturing process and high-efficiency transmission efficiency, the method is gradually an important way for many enterprises to build the own brand recognition degree. No matter the application is combined with APP, the two-dimensional code plays an important role in the application field of convenient and efficient information transmission on a WeChat platform or any carrier capable of bearing the two-dimensional code. The trade company can arrange in order to its user's "sweep sign indicating number" information, accomplishes data analysis, carries out accurate location to processes such as product production from now on, packing, marketing, satisfies customer's demand, improves customer loyalty, extension user quantity, accomplishes the brand marketing.
A conventional matrix-type two-dimensional code is composed of a matrix as shown in fig. 1, each module has the same length and width, the module and the whole symbol generally appear in a square form, and a rectangular space is encoded by different distributions of black and white symbols in the matrix. The matrix type two-dimensional code is a graphic symbol automatic identification processing code system and generally has an error correction function. Representative matrix two-dimensional codes include DM codes, QR codes, hanxin codes, and the like.
Besides the two-dimensional code on the electronic equipment, the two-dimensional code under the line is printed at the positions of product packaging, goods shelves, commodity transaction counters, anti-counterfeiting labels, parking lots and the like, is used for identifying products, preventing counterfeiting, receiving and paying, commodity transaction and the like, and provides convenience for people's life. For many two-dimensional codes printed on a transparent material, due to the influence of the light transmittance of the transparent material, the reflectivity of blank symbols is low, so that the recognition rate of the printed two-dimensional codes is reduced. In order to avoid the influence of a transparent material, the conventional method in the prior art is to invert dark and light units in a two-dimensional code image before printing the two-dimensional code on the transparent material, and then print the two-dimensional code by using light ink in the dark units generated by inversion, so that the difference between the reflectivity of blank code elements and the reflectivity of printing code elements of the two-dimensional code pattern on the transparent material is increased, and the identification rate of the two-dimensional code is improved. However, the transparent material is often used for product packaging, and if the packaging material of the transparent material is a light-colored product, the light rays which transmit the blank code elements can be reflected by the light-colored product, so that the reflectivity of the blank code elements is increased, the reflectivity difference between the blank code elements and the printed code elements is reduced, and the two-dimensional code identification cannot be identified.
In order to solve the above problems, the invention patent with application number CN201710125664.4 provides a two-dimensional code generation system and an identification method, in which a standard two-dimensional code image and an inverted two-dimensional code image are printed on the surface of a transparent material, an indication bit is set at the same time, a background material of the transparent material is determined according to the reflectivity of the indication bit, and the standard two-dimensional code image or the inverted two-dimensional code image is determined and identified according to the property of the background material, so that a transparent material two-dimensional code with a light background material can be accurately identified. However, in this method, it is necessary to set an indication bit, and it is necessary to print a standard image and a reverse image at the same time.
Disclosure of Invention
The invention provides a two-dimensional code generation system and an identification method as an improvement of the patent of CN201710125664.4, which can identify two-dimensional codes on the surface of a transparent material with different background colors by only printing a single two-dimensional code image without setting an indication position.
As an aspect of the present invention, there is provided a two-dimensional code generation system for generating a two-dimensional code image of a surface of a transparent material, including: the receiving part is used for receiving the two-dimensional code data to be printed; an image generating section for generating the two-dimensional code data into a two-dimensional code image; an image inverting unit for color-inverting the code elements of the dimension code image; a first printing section for printing a light color pigment on the reversed black code element on the transparent material; and a second printing unit for printing a color-changing ink on the light-colored pigment of the black symbol of the reversed image on the transparent material, the color-changing ink being transparent at normal temperature and dark after changing temperature.
Preferably, the color-changing ink comprises a reversible thermochromic material.
Preferably, the reversible thermochromic material comprises an inorganic reversible thermochromic material, a liquid crystal reversible thermochromic material, or an electron accepting reversible thermochromic material.
Preferably, the light-colored pigment is beige, yellowish or white.
Preferably, the dark color is dark purple, dark brown or black.
Preferably, the changing the temperature comprises increasing the temperature or decreasing the temperature.
As another aspect of the present invention, there is provided a system for recognizing a two-dimensional code generated by the two-dimensional code generation system, including: the image acquisition device is used for acquiring a two-dimensional code image on the surface of the transparent material; a temperature control unit capable of changing the surface temperature of the two-dimensional code pattern; the image information identification part is used for identifying the two-dimensional code image which is not changed in color and is adopted by the image acquisition device; the collected image reversing part is used for reversing the color of the code element in the collected color-changed two-dimensional code image; and a reverse image recognition unit for recognizing the image generated by the captured image reverse unit.
As another aspect of the present invention, there is provided a method for recognizing a two-dimensional code in the recognition system, including the steps of: (1) acquiring a two-dimensional code image of the surface of the transparent material through an image acquisition device; (2) identifying the information of the two-dimensional code image through an image information identification part, if the information can be identified, giving out the two-dimensional code information, and ending the two-dimensional code identification process; if the identification cannot be carried out, entering the step (3); (3) the temperature of the two-dimensional code pattern on the surface of the transparent material is changed through the temperature control part, so that the color of the color-changing ink is changed; (4) collecting the color-changed two-dimension code image on the surface of the transparent material by an image collecting device; (5) inverting the color of the code element in the acquired color-changed two-dimensional code image through an acquired image inverting part; (6) the two-dimensional code image generated by the collected image reversing part is recognized by a reversed image recognizing part.
Drawings
Fig. 1 is a conventional black and white two-dimensional code pattern in the prior art.
Fig. 2 is a system diagram of a two-dimensional code generation system according to an embodiment of the present invention.
Fig. 3 is a system diagram of a two-dimensional code recognition system according to an embodiment of the present invention.
Detailed Description
The following detailed description of the preferred embodiments of the present invention is provided to enable those skilled in the art to more easily understand the advantages and features of the present invention and to clearly and clearly define the scope of the present invention, which is defined by the following embodiments.
As shown in fig. 2, the two-dimensional code generating system according to the present invention is a two-dimensional code generating system for printing a two-dimensional code pattern on a transparent material, which can identify information of the two-dimensional code pattern regardless of whether a background material of the transparent material is dark or light, and includes a receiving unit 10, an image generating unit 20, an image inverting unit 30, a first printing unit 40, and a second printing unit 50.
The receiving part 10 is used for receiving the two-dimensional code data to be printed, and the two-dimensional code data can be a website, a character string, characters, numbers or a combination thereof. The two-dimensional code data to be printed may be input through a human-computer interaction device such as a keyboard, a mouse, a handwriting screen or a network.
And an image generating unit 20 for generating the two-dimensional code data into a two-dimensional code image having black and white symbols according to a two-dimensional code encoding rule. The encoding may be performed using, for example, QR code encoding rules.
And an image inverting unit 30 for inverting the color of the code element of the two-dimensional code image generated by the image generating unit 20, converting the black code element thereof into a white code element, and converting the white code element thereof into a black code element, thereby generating an inverted image.
The first printing unit 40 prints the black symbols of the inverted image generated by the image inverting unit 30 on the transparent material with light color ink. The first printing portion 40 may be printed using inkjet printing, laser printing, or screen printing. The light-colored ink is a pigment with high reflected light intensity, and can be white, beige or light yellow.
And a second printing unit 50 for printing a color-changing ink on the light color pigment of the black symbol printed on the transparent material in the first printing unit, the color-changing ink being transparent at normal temperature and dark after changing temperature. The second printing portion 50 may be printed using inkjet printing, laser printing, or screen printing. The dark color is a color with high light absorption intensity, and can be black, dark brown or dark purple. The color-changing ink contains reversible thermochromic materials, which can be inorganic reversible thermochromic materials, liquid crystal reversible thermochromic materials or electronic accepting reversible thermochromic materials.
The two-dimensional code recognition system of the embodiment of the invention comprises: the image capturing device 60, the temperature control unit 70, the image information recognition unit 80, the captured image inversion unit 90, and the inverted image recognition unit 100.
The image acquisition device 60 is configured to acquire a two-dimensional code image on the surface of the transparent material, and may use a camera or a camera on the mobile communication terminal to acquire the two-dimensional code image. And the image information identification part 80 is used for identifying the non-color-changing two-dimensional code image adopted by the image acquisition device 60, and if the image information identification part 80 identifies the non-color-changing two-dimensional code image, the background material of the transparent material does not influence the reflectivity of the transparent code element, the two-dimensional code information is given, and the identification process of the two-dimensional code image is finished. When the image information recognition portion 80 does not recognize the two-dimensional code information, it indicates that the background material of the transparent material is light color, the reflection light thereof increases the reflectance transmitted through the transparent symbol, and the temperature control portion 70 changes the surface temperature of the two-dimensional code image of the surface of the transparent material. The temperature control unit 70 may be a heating device or a cooling device, and is determined according to the material properties of the color-changing ink used by the second printing unit 50, and when the temperature control unit 70 changes the temperature, the color of the color-changing ink changes from transparent to dark, thereby reducing the reflectance of the black symbol printed by the transparent material. The image acquisition device 60 further acquires the color-changed two-dimensional code image on the surface of the transparent material. And a collected image inverting unit 90 for inverting the color of the color-changed two-dimensional code image collected by the image collecting device 60, binarizing the code elements therein, and then changing the black code elements into white code elements and the white code elements into black code elements. And a reverse image recognizing section 100 for recognizing the image generated by the captured image reversing section 90.
The two-dimension code identification method of the two-dimension code identification system of the embodiment of the invention comprises the following steps: (1) acquiring a two-dimensional code image of the surface of the transparent material through an image acquisition device 60; (2) recognizing the information of the two-dimensional code image by the image information recognition part 80, giving the two-dimensional code information if the two-dimensional code image can be recognized, and ending the two-dimensional code recognition process; if the identification cannot be carried out, entering the step (3); (3) the temperature of the two-dimensional code pattern on the surface of the transparent material is changed through the temperature control part 70, so that the color of the color-changing ink is changed; (4) collecting the color-changed two-dimension code image on the surface of the transparent material by an image collecting device 60; (5) inverting the color of the code element in the acquired color-changed two-dimensional code image by an acquired image inverting part 90; (6) the two-dimensional code image generated by the captured image inverting section 90 is recognized by the inverted image recognizing section 100.
With the two-dimensional code generation system and the identification method of the above embodiments of the present invention, when the background of the transparent material is light, it is a white symbol at the time of identification, the light-colored symbol in the two-dimensional code image is changed into a dark-colored symbol, which is a black symbol at the time of identification, thereby increasing the difference in reflectance between the symbols; because the code element of the two-dimensional code image after color change is opposite to the code element of the original two-dimensional code image in color, the two-dimensional code image can be identified after the image is inverted, and the identification rate of the two-dimensional code image can be increased for better identifying the two-dimensional code image.
The above embodiments are merely illustrative of the technical concept and features of the present invention, and the present invention is not limited thereto, and any equivalent changes or modifications made according to the spirit of the present invention should be included in the scope of the present invention.
Claims (1)
1. A system for recognizing a two-dimensional code generated by a two-dimensional code generation system for generating a two-dimensional code image of a surface of a transparent material, comprising: the receiving part is used for receiving the two-dimensional code data to be printed; an image generating section for generating the two-dimensional code data into a two-dimensional code image; an image inversion unit for color-inverting the code elements of the two-dimensional code image; a first printing section for printing a light color pigment on the reversed black code element on the transparent material; a second printing section for the first printing section to print a color-changing ink on a light-colored pigment printed on a black symbol of a reverse image on a transparent material, the color-changing ink being transparent at normal temperature and dark after changing temperature; the recognition system includes: the image acquisition device is used for acquiring a two-dimensional code image on the surface of the transparent material; a temperature control unit capable of changing the surface temperature of the two-dimensional code pattern; the image information identification part is used for identifying the non-color-changing two-dimensional code image acquired by the image acquisition device; the collected image reversing part is used for reversing the color of the code element in the collected color-changed two-dimensional code image; a reverse image recognizing section for recognizing the image generated by the captured image reversing section; when the image information identification part does not identify the two-dimensional code information, the temperature control part changes the surface temperature of the two-dimensional code image on the surface of the transparent material; when the temperature control part changes the temperature, the image acquisition device further acquires the color-changed two-dimensional code image on the surface of the transparent material; the identification system identifies the two-dimensional code by the following method: (1) acquiring a two-dimensional code image of the surface of the transparent material through an image acquisition device; (2) identifying the information of the two-dimensional code image through an image information identification part, if the information can be identified, giving out the two-dimensional code information, and ending the two-dimensional code identification process; if the identification cannot be carried out, entering the step (3); (3) the temperature of the two-dimensional code pattern on the surface of the transparent material is changed through the temperature control part, so that the color of the color-changing ink is changed; (4) collecting the color-changed two-dimension code image on the surface of the transparent material by an image collecting device; (5) inverting the color of the code element in the acquired color-changed two-dimensional code image through an acquired image inverting part; (6) the two-dimensional code image generated by the collected image reversing part is recognized by a reversed image recognizing part.
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| CN107150860A (en) * | 2017-06-19 | 2017-09-12 | 上海凌脉网络科技股份有限公司 | The reading method of packaging structure and its identification code with identification code |
| CN109583558B (en) * | 2018-11-29 | 2020-05-19 | 大连中盈信息技术有限公司 | Two-dimensional code label anti-counterfeiting method and platform for verifying circulating commodities |
| CN113910751A (en) * | 2021-09-18 | 2022-01-11 | 沈阳兴华航空电器有限责任公司 | Improved method for screen printing two-dimensional code plate making |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2006338536A (en) * | 2005-06-03 | 2006-12-14 | Fujifilm Holdings Corp | Reader and printer |
| JP2007328420A (en) * | 2006-06-06 | 2007-12-20 | Dainippon Printing Co Ltd | Vessel |
| WO2017038848A1 (en) * | 2015-09-01 | 2017-03-09 | 合同会社ＩＰ Ｂｒｉｄｇｅ１号 | Code, information processing method, information processing device, program, recording medium, ink, pigment, and storage device |
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| CN103295043B (en) * | 2013-04-18 | 2015-12-23 | 周莉 | A kind of barcode with changeable information and preparation method thereof |
| CN203503241U (en) * | 2013-10-09 | 2014-03-26 | 湖北金三峡印务有限公司 | Thermal-change two-dimension code showing printing structure |
| CN107914468B (en) * | 2017-03-05 | 2019-11-08 | 宁波市民卡运营管理有限公司 | Two dimensional code generates system, reading device |
| CN106971216B (en) * | 2017-03-25 | 2019-12-03 | 苏州工业园区报关有限公司 | A kind of two dimensional code generates and identifying system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006338536A (en) * | 2005-06-03 | 2006-12-14 | Fujifilm Holdings Corp | Reader and printer |
| JP2007328420A (en) * | 2006-06-06 | 2007-12-20 | Dainippon Printing Co Ltd | Vessel |
| WO2017038848A1 (en) * | 2015-09-01 | 2017-03-09 | 合同会社ＩＰ Ｂｒｉｄｇｅ１号 | Code, information processing method, information processing device, program, recording medium, ink, pigment, and storage device |
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Effective date of registration: 20191218 Address after: No.185, Sufu Road, Suxi Town, Yiwu City, Jinhua City, Zhejiang Province 322000 Applicant after: Zhejiang Shang Xiang Polytron Technologies Inc Address before: 102488 Beijing Fangshan District Liangxiang Triumph Street Jianshe Road 18 -D1948 Applicant before: Beijing Yi Zhi Lian Technology Co., Ltd. |
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