CN107423798A - Fluorescent two-dimensional code anti-counterfeiting mark method based on nano particle - Google Patents
Fluorescent two-dimensional code anti-counterfeiting mark method based on nano particle Download PDFInfo
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- CN107423798A CN107423798A CN201710673635.1A CN201710673635A CN107423798A CN 107423798 A CN107423798 A CN 107423798A CN 201710673635 A CN201710673635 A CN 201710673635A CN 107423798 A CN107423798 A CN 107423798A
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- China
- Prior art keywords
- false proof
- fluorescent
- nano particle
- dimensional code
- counterfeiting mark
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- 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.)
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Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/06009—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code with optically detectable marking
- G06K19/06037—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code with optically detectable marking multi-dimensional coding
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
- G09F3/02—Forms or constructions
- G09F3/0297—Forms or constructions including a machine-readable marking, e.g. a bar code
Abstract
The invention provides a kind of fluorescent two-dimensional code anti-counterfeiting mark method based on nano particle, it comprises the following steps：Establish false proof database；Shoot testing sample photo；The identification coding in the testing sample photo is extracted, and the identification coding in testing sample photo is compared with the information in false proof database, obtains anti-counterfeit recognition result；Wherein, the method for building up in the range data storehouse comprises the following steps：Fluorescent material is prepared, secure substrate is made, makes security devices, the false proof picture of shooting, extraction characteristic information, coding storage.The present invention has following beneficial effect：Because fluorescent material is distributed completely random in substrate, so the security devices made can not replicate.Modeling and false proof full-automation can be achieved.Clapped sample photo only need to be inputted, you can carry out analysis in real time and obtain false proof result.Upconverting fluorescent material stability is high, and colour-fast under high temperature, so the false proof specimen page holding time produced is long, is not easy to fail.
Description
Technical field
The present invention relates to optical anti-counterfeiting field, is related to a kind of two-dimensional fluoroscopic distribution based on nano particle up-conversion luminescence and compiles
Code anti-counterfeiting mark method.
Background technology
False proof is a kind of to prevent from forging, the technical measures of behavior such as clone by extracting with identification feature information.At present
The false proof mode often touched substantially have laser tag, inquiry tag, safety line cheque paper, anti-forgery ink, wireless antifalsification label,
Specialties are false proof etc..False proof purpose is to help consumer to differentiate that article is true and false, so anti-counterfeiting technology should consume convenient
Accomplish difficult forge and easy to identify while person as far as possible.Laser and inquiry tag form it is false proof, due to being easy to forge, progressively
It is rejected or applies in low and middle-end field.And security higher safety line is false proof false proof with specialties at present, due to pair setting
Standby requirement is high, so general device is difficult to replicate, causes security very high, but also increase false proof cost simultaneously.
The forgery such as current social, various paper documents, certificate is spread unchecked, and causes severe social influence.Anti-forgery ink is
More conventional a kind of false proof mode at present, anti-fake material is mixed in common ink and printed therewith, and then under given conditions
Develop the color to carry out anti-counterfeit recognition.Traditional fluorescence falsification preventing material is that naked eyes are invisible under general light using fluorescence, and in spy
It is false proof to carry out to determine to show under light the pattern of specific wavelength, its essence is the encryption to printed patterns and fluorescent material, once
Up-conversion species used in identification, it is just easily imitated, certain limitation be present.
The content of the invention
The present invention seeks to be produced on the phosphor pattern of random distribution on specific lines using upconverting fluorescent material, according to
The characteristics of fluorescence grain pattern strength information, positional information and colouring information random distribution, propose a kind of nano-particle fluorescence two
Tie up code anti-counterfeiting mark method.The nano-luminescent material prepared is applied in the substrate of two-dimentional indentation, due to what is prepared
Distribution of the embedded photoluminescent material in substrate is unique, extracts its distributed intelligence on indentation and storage.In anti-counterfeit recognition, root
The indentation fluorescence distribution photo shot according to holder compares with information in false proof storehouse, you can judges its true and false.
A kind of fluorescent two-dimensional code anti-counterfeiting mark method based on nano particle, it comprises the following steps：
Establish false proof database；
Shoot testing sample photo；
The identification coding in the testing sample photo is extracted, and the identification in testing sample photo is encoded and false proof number
It is compared according to the information in storehouse, obtains anti-counterfeit recognition result；
Wherein, the method for building up in the range data storehouse comprises the following steps：
Fluorescent material is prepared, secure substrate is made, makes security devices, the false proof picture of shooting, extraction characteristic information, coding
Storage.
Preferably, it is described prepare fluorescent material method be：
With laser sintered method synthesis fluorescent material and tabletting, nano-luminescent material is then prepared using laser ablation.
Preferably, the preparation method of the secure substrate is：
Two-dimensional grid lines is depicted using as the metal of substrate or paper, so as to follow-up false proof processing.
Preferably, the preparation method of the security devices is：
The fluorescent material is applied on the step secure substrate, because the drainage of indentation, fluorescent material are big
In gap caused by being distributed in indentation more.
Preferably, the image pickup method of the false proof picture is：
The infrared laser for being 980nm with wavelength irradiates the security devices, and nano particle excites in 980nm to be turned in lower generation
Fluorescence is changed, due to the randomness of nano particle position distribution, obtains the pattern of fluorescent space random distribution, and is taken pictures, is made
For the foundation of anti-counterfeiting information extraction.
Preferably, the extracting method of the characteristic information is：
The fluorescence information feature in false proof picture is programmed, by its color, brightness, coding is associated with positional information, generation is originally
Anti-counterfeit recognition corresponding to pattern encodes.
Preferably, the method for the coding storage is：
Anti-counterfeit recognition is encoded into deposit database, called to identify.
Preferably, the image pickup method of the testing sample is with shooting false proof picture and extracting the operation of characteristic information
It is identical.
The present invention proposes a kind of new two-dimensional fluoroscopic distributed code anti-counterfeiting technology, and spy is produced on using upconverting fluorescent material
Determine the phosphor pattern of random distribution on lines, according to the characteristics of fluorescence grain pattern strength information and positional information random distribution,
Distributed intelligence coding storage of the embedded photoluminescent material of preparation on two-dimentional indentation is subjected to authentication and identification.Due to fluorescence
The randomness and the stability of fluorescent material that material is distributed in substrate, so this false proof mode confidentiality is high, stability is strong.
Compared with prior art, the present invention has following beneficial effect：
1st, because fluorescent material is distributed completely random in substrate, so the security devices made can not replicate.
2nd, this method can realize modeling and false proof full-automation.Clapped sample photo only need to be inputted, you can carry out real-time
Analysis obtains false proof result.
3rd, upconverting fluorescent material stability is high, and colour-fast under high temperature, so the false proof specimen page holding time produced
Long, it is not easy to fail.
Brief description of the drawings
The detailed description made by reading with reference to the following drawings to non-limiting example, further feature of the invention,
Objects and advantages will become more apparent upon：
Fig. 1 is flow chart of the present invention；
Fig. 2 is lines schematic diagram of the present invention；
Fig. 3 is precision of prediction result of the embodiment of the present invention.
Embodiment
With reference to specific embodiment, the present invention is described in detail.Following examples will be helpful to the technology of this area
Personnel further understand the present invention, but the invention is not limited in any way.It should be pointed out that the ordinary skill to this area
For personnel, without departing from the inventive concept of the premise, various modifications and improvements can be made.These belong to the present invention
Protection domain.
Embodiment
The present invention seeks to be produced on the phosphor pattern of random distribution on specific lines using upconverting fluorescent material, according to
The characteristics of fluorescence grain pattern strength information and positional information random distribution, propose that a kind of nano-particle fluorescence is two-dimensional encoded false proof
Identification method.
The present embodiment prepares nano fluorescent up-conversion using laser sintered method and laser ablation, due to what is prepared
Distribution of the embedded photoluminescent material in substrate is unique, extracts its distributed intelligence on indentation and storage.In anti-counterfeit recognition, root
The indentation fluorescence branch's photo shot according to holder compares with information in false proof storehouse, you can judges its true and false.
To achieve these goals, following technical scheme is employed：
The preparation processing of security devices and coding step are as follows, as shown in Figure 1：
Step 1：Prepare fluorescent material.Fluorescent material and tabletting are synthesized with laser sintered method, then using laser ablation
Prepare nano-luminescent material.
Step 2：Make secure substrate.As shown in Figure 2 a, two-dimensional mesh check is depicted using as the metal of substrate or paper
Road, so as to follow-up false proof processing.
Step 3：Make security devices.The nano-luminescent material that step 1 is made is applied on the base that step 2 makes,
Due to the drainage of indentation, fluorescent material is distributed in gap caused by with indentation mostly.
Step 4：False proof picture is shot, design sketch is as shown in Figure 2 b.Made with 980nm infrared laser irradiating step 3
Security devices, nano particle excites lower generation up-conversion fluorescence in 980nm, due to its position distribution randomness, therefore obtains
The pattern of fluorescent space random distribution.Photo is shot, the foundation as anti-counterfeiting information extraction.
Step 5：Extract characteristic information.Fluorescence information feature in the programming extraction photo of identification step 4, according to indentation, is carried
The up-conversion fluorescence in indentation is taken, and coding is associated to its color, brightness, size and the positional information of two-dimentional indentation,
Generate the anti-counterfeit recognition coding corresponding to this pattern.
Step 6：Anti-fake code is stored in database, called to identify.
When need to carry out authentication, step is as follows：
Step 7：With step 4,5, shoot and extract characteristic information.
Step 8：It is compared with information in false proof database, identifies whether article to be identified belongs to false proof database.
Step 9：Identify precision test.Make two fluorescence falsification preventing patterns and shoot photo under different angle.Every kind of figure
Case take respectively 15,16,17 ... 35 photos establish false proof database and are trained, and take 30 photo conducts respectively
Photo to be predicted, then separately plus outside 5 storehouses photo amounts to 65 as distracter, band prediction photo.False proof prediction result is shown in Fig. 3.
Above example is merely to illustrate the embodiment of the present invention, and the scope of the present invention is not limited only to above-mentioned reality
Apply the scope described by example.
For example, the technology can not only be applied to the false proof of paper document, it can be made into antifalsification label and apply at other
Anti-counterfeit field.
The cipher mode of embodiment, complex encryption method can be used, i.e., except entering to random position, brightness and colouring information
Row coding storage, the laser irradiation of another usable different wave length produce up-conversion fluorescence and taken pictures coding, under extraction different wave length
Characteristic information coding storage, can increase the complexity of password and then further improve false proof rank.
The specific embodiment of the present invention is described above.It is to be appreciated that the invention is not limited in above-mentioned
Particular implementation, those skilled in the art can make various deformations or amendments within the scope of the claims, this not shadow
Ring the substantive content of the present invention.
Claims (8)
- A kind of 1. fluorescent two-dimensional code anti-counterfeiting mark method based on nano particle, it is characterised in that comprise the following steps：Establish false proof database；Shoot testing sample photo；The identification coding in the testing sample photo is extracted, and by the identification coding and false proof database in testing sample photo In information be compared, obtain anti-counterfeit recognition result；Wherein, the method for building up in the range data storehouse comprises the following steps：Fluorescent material is prepared, secure substrate is made, makes security devices, the false proof picture of shooting, extract characteristic information, be coded into Storehouse.
- 2. the fluorescent two-dimensional code anti-counterfeiting mark method based on nano particle as claimed in claim 1, it is characterised in that the preparation The method of fluorescent material is：With laser sintered method synthesis fluorescent material and tabletting, nano-luminescent material is then prepared using laser ablation.
- 3. the fluorescent two-dimensional code anti-counterfeiting mark method based on nano particle as claimed in claim 1, it is characterised in that described false proof The preparation method of substrate is：Two-dimensional grid lines is depicted using as the metal of substrate or paper, so as to follow-up false proof processing.
- 4. the fluorescent two-dimensional code anti-counterfeiting mark method based on nano particle as claimed in claim 1, it is characterised in that described false proof The preparation method of pattern is：The fluorescent material is applied on the step secure substrate, due to the drainage of indentation, fluorescent material divides mostly In gap caused by being distributed in indentation.
- 5. the fluorescent two-dimensional code anti-counterfeiting mark method based on nano particle as claimed in claim 1, it is characterised in that described false proof The image pickup method of picture is：The infrared laser for being 980nm with wavelength irradiates the security devices, nano particle 980nm excite changed in lower generation it is glimmering Light, due to the randomness of nano particle position distribution, the pattern of fluorescent space random distribution is obtained, and taken pictures, as anti- The foundation of fake information extraction.
- 6. the fluorescent two-dimensional code anti-counterfeiting mark method based on nano particle as claimed in claim 1, it is characterised in that the feature The extracting method of information is：The fluorescence information feature in false proof picture is programmed, by its color, brightness, coding is associated with positional information, generates this pattern Corresponding anti-counterfeit recognition coding.
- 7. the fluorescent two-dimensional code anti-counterfeiting mark method based on nano particle as claimed in claim 1, it is characterised in that the coding The method of storage is：Anti-counterfeit recognition is encoded into deposit database, called to identify.
- 8. the fluorescent two-dimensional code anti-counterfeiting mark method based on nano particle as claimed in claim 1, it is characterised in that described to be measured Operation of the image pickup method of sample with shooting false proof picture and extraction characteristic information is identical.
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Cited By (10)
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|---|---|---|---|---|
| CN107862366A (en) * | 2017-12-11 | 2018-03-30 | 福州大学 | A kind of Quick Response Code based on quantum dot light photoluminescence |
| CN109291674A (en) * | 2018-10-10 | 2019-02-01 | 福州大学 | A kind of not reproducible antifalsification label and preparation method thereof based on inkjet printing |
| CN109934320A (en) * | 2019-02-27 | 2019-06-25 | 上海交通大学 | A kind of antifalsification label and its method for anti-counterfeit based on microsize particle |
| CN110276431A (en) * | 2019-06-25 | 2019-09-24 | 中国计量大学 | A kind of production method and false-proof detection method of fluorescent three-dimensional code |
| CN110767075A (en) * | 2019-12-05 | 2020-02-07 | 南方科技大学 | Flexible anti-counterfeiting layer based on metal micro-nano network, and preparation method and application thereof |
| CN111414779A (en) * | 2020-05-22 | 2020-07-14 | 杭州沃朴物联科技有限公司 | Anti-counterfeit label identification method and device |
| CN113293448A (en) * | 2021-05-24 | 2021-08-24 | 河南大学 | Micro-nano optical unclonable anti-counterfeiting mark based on electrostatic spinning nanofiber cloth and preparation method and application thereof |
| CN115157835A (en) * | 2022-06-08 | 2022-10-11 | 中国科学院上海光学精密机械研究所 | Method for marking invisible patterns by laser based on photo-bleaching |
| CN115310468A (en) * | 2022-08-08 | 2022-11-08 | 北京微晶物联科技有限公司 | Microcrystal code scanning device and method for explosion-proof environment |
| CN117542268A (en) * | 2023-11-02 | 2024-02-09 | 东莞市铁石文档科技有限公司 | Anti-counterfeit label, anti-counterfeit label manufacturing system and anti-counterfeit management and control system |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107862366A (en) * | 2017-12-11 | 2018-03-30 | 福州大学 | A kind of Quick Response Code based on quantum dot light photoluminescence |
| CN109291674A (en) * | 2018-10-10 | 2019-02-01 | 福州大学 | A kind of not reproducible antifalsification label and preparation method thereof based on inkjet printing |
| CN109934320A (en) * | 2019-02-27 | 2019-06-25 | 上海交通大学 | A kind of antifalsification label and its method for anti-counterfeit based on microsize particle |
| CN110276431A (en) * | 2019-06-25 | 2019-09-24 | 中国计量大学 | A kind of production method and false-proof detection method of fluorescent three-dimensional code |
| CN110767075A (en) * | 2019-12-05 | 2020-02-07 | 南方科技大学 | Flexible anti-counterfeiting layer based on metal micro-nano network, and preparation method and application thereof |
| CN111414779B (en) * | 2020-05-22 | 2022-07-26 | 杭州沃朴物联科技有限公司 | Anti-counterfeit label identification method and device |
| CN111414779A (en) * | 2020-05-22 | 2020-07-14 | 杭州沃朴物联科技有限公司 | Anti-counterfeit label identification method and device |
| CN113293448A (en) * | 2021-05-24 | 2021-08-24 | 河南大学 | Micro-nano optical unclonable anti-counterfeiting mark based on electrostatic spinning nanofiber cloth and preparation method and application thereof |
| CN113293448B (en) * | 2021-05-24 | 2022-07-08 | 河南大学 | Micro-nano optical unclonable anti-counterfeiting mark based on electrostatic spinning nanofiber cloth and preparation method and application thereof |
| CN115157835A (en) * | 2022-06-08 | 2022-10-11 | 中国科学院上海光学精密机械研究所 | Method for marking invisible patterns by laser based on photo-bleaching |
| CN115310468A (en) * | 2022-08-08 | 2022-11-08 | 北京微晶物联科技有限公司 | Microcrystal code scanning device and method for explosion-proof environment |
| CN117542268A (en) * | 2023-11-02 | 2024-02-09 | 东莞市铁石文档科技有限公司 | Anti-counterfeit label, anti-counterfeit label manufacturing system and anti-counterfeit management and control system |
| CN117542268B (en) * | 2023-11-02 | 2024-04-12 | 东莞市铁石文档科技有限公司 | Anti-counterfeit label, anti-counterfeit label manufacturing system and anti-counterfeit management and control system |
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Effective date of registration: 20180427 Address after: 200237 District 2319, room 69, Lane 1985, Chunshen Road, Minhang District, Shanghai 1 district. Applicant after: Shanghai Langyan Optoelectronics Technology Co.,Ltd. Applicant after: East China Normal University Address before: 200237 District 2319, room 69, Lane 1985, Chunshen Road, Minhang District, Shanghai 1 district. Applicant before: Shanghai Langyan Optoelectronics Technology Co.,Ltd. |
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