CN102034396A - Anti-counterfeit method by randomly doping materials - Google Patents
Anti-counterfeit method by randomly doping materials Download PDFInfo
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- CN102034396A CN102034396A CN2009101766483A CN200910176648A CN102034396A CN 102034396 A CN102034396 A CN 102034396A CN 2009101766483 A CN2009101766483 A CN 2009101766483A CN 200910176648 A CN200910176648 A CN 200910176648A CN 102034396 A CN102034396 A CN 102034396A
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Abstract
The invention relates to an anti-counterfeit method by randomly doping materials, which comprises the following steps: forming randomly distributed organization structures with different material densities and various shapes in a plastic card by randomly doping solid visible materials with different material densities into the body material of the plastic card; irradiating by radioactive rays which penetrate through the organization structures with different density degrees in the plastic card; detecting the attenuation degrees of radioactive ray signals after penetrating through all points on the card by a radioactive ray detector; converting the radioactive ray signals with different attenuation degrees into digital texture images; numbering the digital texture images and storing in a computer database; and in verification, repeating the radioactive ray irradiating and receiving operations on the plastic card to obtain digital texture images again, and comparing the digital texture images with the digital texture images stored in the database previously and verifying, wherein if the digital texture images are same, the plastic card is true. The method can replace the traditional anti-counterfeit technology to ensure the uniqueness of the plastic card.
Description
Technical field
The method for anti-counterfeit that the present invention relates to identify belongs to information security technology, is specifically related to a kind of method for anti-counterfeit of dopant material at random.
Background technology
General in the world texture anti-fake system respectively has the characteristics of oneself, and advantage is separately arranged in different application scenarios.In the texture anti-fake sign, general method for anti-counterfeit is for coming false proof by reflective color texture sign is carried out photo-optics, numbering, storage and check, because a little less than the resistivity of reflective color texture sign to the interference such as stain on surface, the color texture sign is passed through to copy at paper or card face printing color pattern easily simultaneously, so antifalse effect is not good.
Summary of the invention
Purpose of the present invention is to overcome deficiency of the prior art, and provide a kind of the material density material that has nothing in common with each other is doped among the plastic cards at random, realizes a kind of method for anti-counterfeit that in fact can't duplicate, promptly a kind of method for anti-counterfeit of dopant material at random.
Technical scheme of the present invention is as follows:
A kind of method for anti-counterfeit of dopant material at random is a kind of method for anti-counterfeit that is used to identify, and comprises the marking materials in generation, making and the identification marking, it is characterized in that: its concrete generation, manufacturing process comprise:
Fibrous and the irregular cubic granules shape solid material of a, making different material density;
The plastic cards of the fibrous and irregular cubic granules shape solid material that the material density of b, the inner embedding of making stochastic distribution is different;
C, penetrate the attenuation degree of the each point radiation signal that obtains behind the different densities solid material in the plastic cards, produce a kind of radioactive ray texture image by detection;
D, convert the radioactive ray texture image to digital texture image A;
E, digital texture image A is saved in the database of computer system;
Its identifying is:
A, produce the radioactive ray texture image once more by the preceding plastic cards of having made, the radioactive ray texture image that produces with the preceding first time is identical;
B, the radioactive ray texture image that will produce once more convert digital texture image B to;
The digital texture image A that preserves for the first time in c, comparative figures texture image B and the computer system data storehouse, if both are identical, the expression plastic cards is real;
The manufacturing process of described random material is to make the staple fibre of 0.2 to 2 centimeter length and the solid material that irregular small cubes particle formation material density has nothing in common with each other by the solid state material that material density is had nothing in common with each other.
The manufacturing process of described random material false proof card, be earlier plastic raw materials (generally to be passed through granulation, dyeing, particulate material after the processing such as adding adjuvant) puts into barrel, through heating plasticizing, make it to become high viscosity, the melt of flow-like, in the process of plastic raw materials particle heating plasticizing, the staple fibre that material density is had nothing in common with each other and the solid material of irregular small cubes particle are rendered in the melt that is formed gradually by the plastic raw materials particle, by stirring, make segment of fiber and particle be non-uniformly distributed in as far as possible at random in the melt, what of segment of fiber and amounts of particles everywhere in the melt, mutual alignment relation etc. is a completely random.With the die cavity of flow-like melt injection mould, through supercooling, solidification stages, then deviate from from mould, become plastic cards, after melt solidifying shape, become plastic cards.Staple fibre that the material density that internal random is mixed has nothing in common with each other and cubic granules constitute a kind of random material plastic cards in the inner institutional framework that forms a kind of different density degree of three-dimensional random distribution of plastic cards; On plastic cards, specify an image acquisition region.Thickness and composition as random material carrier card are not had special requirement, can be use at present with plastics as the credit card of card material, bank card, medical card etc.
The production process of described radioactive ray texture image, be to use the image acquisition region irradiation card of radioactive ray (for example: the X line is penetrated or gamma-rays) in plastic cards one end appointment, in the image acquisition region of the plastic cards other end corresponding to appointment, measure the information that radioactive ray penetrate the radioactive ray attenuation degree behind the plastic cards each point by radiation detector, the synthetic back of the each point radioactive ray information that obtains is formed the radioactive ray texture image.
The production process of described digital texture image, be to form the radioactive ray texture image by the synthetic back of the radioactive ray information that penetrates the plastic cards each point that will obtain, utilizing radiation image/digital picture converter that the radioactive ray texture image that obtains is converted to again can be by the digital texture image of Computer Processing (for example image file of BMP or JPG form).
Described digital texture image is saved in process in the computer system data storehouse, be that the above-mentioned digital texture image that obtains from the radioactive ray texture image is numbered and stores in the computer system data storehouse, simultaneously numbering be imprinted on the plastic cards product and use for inquiry.
Described identifying, be that the inquiry utilizes radioactive ray (for example: the X line is penetrated or gamma-rays) generator/radiation detector and the above-mentioned operation of radiation image/digital picture converter repeated using to obtain digital picture B once more, number on computer system input product with communication modes again, the texture distribution characteristics of the digital texture image B that obtains on the plastic cards product is checked with the texture distribution characteristics of the digital picture A that obtains from pre-deposit the computer system data storehouse, if the deviation of characteristics of image is in the permissible error scope, judge that then plastic cards is true, otherwise be judged to be vacation.
According to the manufacturing process of stochastic distribution material as can be known, it is not reproducible that the stochastic distribution material is actually.Therefore, the anti-counterfeiting mark material has uniqueness characteristic.
Embodiment
The present invention is achieved in that
One, the fabricator produces staple fibre shape and the irregular small cubes granular solids material that material density has nothing in common with each other;
Two, the fabricator is embedded into the solid material that material density has nothing in common with each other in the plastic cards at random, makes the inner plastic cards that embeds the solid material that material density has nothing in common with each other
Three, the fabricator is by using the radiation exposure plastic cards, measure the information of the radioactive ray attenuation degree after radioactive ray penetrate the plastic cards each point by radiation detector at the other end of plastic cards, the synthetic back of the radioactive ray information of passing each point that obtains is formed the radioactive ray texture image;
Four, the fabricator obtains the radioactive ray textured pattern by the means of image acquisition, utilizes the image digitazation treatment technology to produce digital texture image;
Five, last fabricator is saved in digital texture image in the Computer Database;
Six, the identifier is with the same method of fabricator, by the preceding plastic cards of having produced produce once more digital texture image and with Computer Database in the digital texture image preserved relatively, if both are identical, the expression plastics are true.If both differences, the expression plastic cards is false.
This method is compared with existing method and is had the following advantages:
One, this method is the method for anti-counterfeit that in fact a kind of manufacture process can't repeat;
Two, the manufacture method of the different material density material of the embedding random distribution in this method is open;
Three, the false proof radiation image collection in this method and digitalized processing method are open; Discrimination process is open.
According to the manufacturing process of above-mentioned anti-counterfeiting mark material as can be known, the principle that method of the present invention is difficult to repetition based on complicated chance phenomenon can verify out rapidly that whether plastic cards is tampered or forges, and makes plastic cards have uniqueness characteristic.
Claims (5)
1. the method for anti-counterfeit of dopant material at random is a kind of method for anti-counterfeit that is used to identify, and comprises the marking materials in generation, making and the identification marking, and it is characterized in that: its concrete generation, manufacturing process comprise:
A, utilize the material of the solid state that material density has nothing in common with each other, make irregular cubic granules and the fibrous solid material that material density has nothing in common with each other by processing;
B, the solid material of different material density is mixed in the manufacture process of plastic cards in the card body material at random, form a kind of anti-counterfeiting mark;
C, when utilizing radioactive ray to pass the material of the inner different densities of card, the degree difference that intensity of radiation weakens, go into plastic cards with radioactive ray from an end-fire, after radioactive ray pass plastic cards, at the other end of plastic cards, detect the radiation signal of the varying strength that penetrates the plastic cards each point by radiation detector;
D, the degree difference of utilizing the intensity of radiation penetrate the plastic cards each point to weaken, produce a kind of radioactive ray texture image that constitutes by the different radioactive ray of attenuation degree, utilize radiation image/digital picture converter to convert the radioactive ray texture image to digital texture image again, digital texture image is numbered and stored in the computer system data storehouse;
Its identifying is:
A, produce the radioactive ray texture image once more by the preceding plastic cards of having produced, the radioactive ray texture image that produces with the preceding first time is identical;
B, the radioactive ray texture image that will produce once more convert digital texture image to;
C, relatively with the digital texture image that produces for the first time of preserving in above-mentioned digital texture image that obtains once more and the Computer Database, if both are identical, the anti-counterfeiting mark that the solid material that the expression material density has nothing in common with each other forms in plastic cards is real.
2. the method for anti-counterfeit of a kind of dopant material at random according to claim 1, it is characterized in that to adopt the solid state material that material density is had nothing in common with each other to make fibrous and irregular cubic granules shape solid material, fibrous and the irregular cubic granules shape solid material that material density is had nothing in common with each other is doped to the inner formation of plastic cards false proof card at random, and the solid material that material density has nothing in common with each other forms a kind of anti-counterfeiting mark in plastic cards.
3. the method for anti-counterfeit of a kind of dopant material at random according to claim 1, the difference of fibrous and irregular cubic granules shape solid material on material density that the material density that it is characterized in that utilizing card body material in the plastic cards and mix at random has nothing in common with each other is at the inner engineering three-dimensional tissue structures that produces the different shape with different densities of the stochastic distribution that a kind of fibrous and irregular cubic granules shape solid material that is had nothing in common with each other by material density constitutes of plastic cards.
4. measure the radioactive ray attenuation degree information behind the each point different material density structure in the plastic cards that penetrates by radioactive ray generator and radiation detector, detect the information of the three-dimensional material density structure of card inside, the synthetic back of the radioactive ray information that penetrates the plastic cards each point is formed the radioactive ray texture image, and utilizing radiation image/digital picture converter that the radioactive ray texture image that obtains is converted to again can be by the digital texture image of Computer Processing.
5. the method for anti-counterfeit of a kind of dopant material at random according to claim 1 is characterized in that being numbered and storing into check with in the database with detecting the digital texture image that obtains for the first time, simultaneously numbering is imprinted on the plastic cards and uses for inquiry; During veritification, the inquiry utilizes the operation of radiation detector and radiation image/digital picture converter repeated using above-mentioned 4, obtain digital texture image once more, number on computer system input product by communication modes again, extract the digital texture image that deposits in for the first time in advance; The checking unique mark will be checked by the texture distribution characteristics of the digital texture image that obtains on the plastic cards and the texture distribution characteristics that deposits the digital texture image that obtains in the computer system data storehouse in advance for the first time in once more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101766483A CN102034396A (en) | 2009-09-24 | 2009-09-24 | Anti-counterfeit method by randomly doping materials |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101766483A CN102034396A (en) | 2009-09-24 | 2009-09-24 | Anti-counterfeit method by randomly doping materials |
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| CN102034396A true CN102034396A (en) | 2011-04-27 |
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| CN2009101766483A Pending CN102034396A (en) | 2009-09-24 | 2009-09-24 | Anti-counterfeit method by randomly doping materials |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102897411A (en) * | 2012-09-17 | 2013-01-30 | 褚万青 | Transparent texture and commodity anti-counterfeiting method |
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- 2009-09-24 CN CN2009101766483A patent/CN102034396A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102897411A (en) * | 2012-09-17 | 2013-01-30 | 褚万青 | Transparent texture and commodity anti-counterfeiting method |
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Application publication date: 20110427 |