CN103873144A - LED (light-emitting diode) visible light-based anti-fake identification method and system - Google Patents
LED (light-emitting diode) visible light-based anti-fake identification method and system Download PDFInfo
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- CN103873144A CN103873144A CN201410075937.5A CN201410075937A CN103873144A CN 103873144 A CN103873144 A CN 103873144A CN 201410075937 A CN201410075937 A CN 201410075937A CN 103873144 A CN103873144 A CN 103873144A
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Abstract
The invention discloses an LED (light-emitting diode) visible light-based anti-fake identification method and system. The system comprises an intelligent device, an information modulation device, an LED light emitter controlled by the intelligent device, and a photoelectric converter and an information processor which are arranged on an identified article and are connected in sequence, wherein the intelligent device is used for generating authentication information comprising a condition code, performs modulation by virtue of an OOK (ON-off keying) code, and the authentication information comprising the condition code is transmitted by a visible light transmitting set in a manner of visible light signal; the photoelectric converter is used for converting the received visible light signal into an electrical signal; the information processor is used for demodulating the electrical signal, recalculating the condition code, and performing anti-fake identification on the article according to the fact that whether the condition code is the same or not. The authentication information of the condition code and the like is transmitted in an LED visible light signal manner, visible light signal transmission is not subject to electromagnetic interference, and thus the safety is high. The system can be realized by using a variety of intelligent devices currently, thereby being very high in extensibility.
Description
Technical field
The invention belongs to the LED communications field, a kind of method and system of carrying out article anti-counterfeit identification by LED light are provided.
Background technology
Current anti-counterfeiting technology mainly comprises that laser anti-counterfeit code, bar code (Quick Response Code) and RFID are false proof etc.But laser anti-counterfeit code and bar code are all very easy to be replicated or need professional equipment to identify; RFID is false proof need to be scanned one by one to article, and large batch of article are just needed to very a large amount of work, and RFID anti-counterfeiting technology mainly relies on far-end server to carry out recorded information, just helpless for the fraud as new wine in old bottles.
Summary of the invention
The object of this invention is to provide a kind of method and system of carrying out article anti-counterfeit identification by LED light, be intended to solve the problem that easily cracks, needs professional equipment of current method for anti-counterfeit, and can complete authenticity verification by large batch of article simultaneously, greatly save manpower and entreprise cost; Coordinate smart machine also to there is the very strong system expandability.
For achieving the above object, the present invention has adopted following technical scheme.
Based on an anti-counterfeit recognition system for LED visible ray, comprising: smart machine, information modulation, by the LED optical transmitting set of smart machine control, and is arranged at the optical-electrical converter and the message handler that on the article that are identified, also connect successively; Described smart machine is for generation of the authentication information containing condition code, with OOK(On-Off Keying) encode and modulate, and send with visible light signal through visible light emitter; Described optical-electrical converter is for being converted to the signal of telecommunication by the visible light signal of receiving; Described message handler, for this signal of telecommunication of demodulation, recalculates condition code, and with the whether identical identify objects true and false that compares of condition code.
Further, in described smart machine and described message handler, all preset multiple encryption algorithms, a code of every kind of cryptographic algorithm configuration.Described multiple encryption algorithms can comprise but be not limited only to irreversible encryption algorithm, as MD5(Message-Digest Algorithm 5 Message Digest 5s 5), SHS (the safe gibberish standard of Secure Hash Standard) etc.
Further, described LED optical transmitting set can be used as the power source of optical-electrical converter and message handler, but needs to coordinate in addition photoelectric conversion device that LED converting optical signals is become to direct voltage.
Further, the production method of the described authentication information containing condition code is: the random number that described smart machine is produced or the article characteristics code reading are as seed, a kind of cryptographic algorithm of random selection calculates condition code, and the code of described condition code, described checking seed and described selected encryption algorithm is as the described authentication information containing condition code.
Further, described message handler recalculates condition code step: described in demodulation after the signal of telecommunication, obtain the code of described condition code, described seed and described selected encryption algorithm, recalculate condition code by cryptographic algorithm corresponding to this code and described seed.
Further, described smart machine is smart mobile phone, computer, iPad or other smart machines.
The present invention is based on the Antiforge recognizing method of LED visible ray, take following steps:
Smart machine uses seed, selects at random a kind of cryptographic algorithm to carry out condition code computing, generating feature code; Using the code of described condition code, described seed and described selected encryption algorithm as the authentication information containing condition code, modulate with OOK coding, and send with visible light signal through visible light emitter;
Receive this visible light signal by an optical-electrical converter, and be converted to the signal of telecommunication; By this signal of telecommunication of message handler demodulation, obtain the code of described condition code, described seed and described selected encryption algorithm, recalculate condition code by cryptographic algorithm corresponding to this code and described seed, and compare so that whether condition code is identical, demonstrate the true and false information of article.
In said method, described seed is the random number that described smart machine produces, and can be also the article characteristics code that described smart machine reads.
Described article characteristics code refers to that the product serial code of prining on article or other can represent the code of product feature.
In described smart machine and described message handler, all preset multiple encryption algorithms, a code of every kind of cryptographic algorithm configuration.
Described multiple encryption algorithms can comprise but be not limited only to irreversible encryption algorithm, as MD5(Message-Digest Algorithm 5 Message Digest 5s 5), SHS (the safe gibberish standard of Secure Hash Standard) etc.
Described smart machine is smart mobile phone, computer, iPad or other smart machines.
The present invention is by authentication informations such as LED visible light signal transmission feature codes, using the whether identical mark as article genuine-fake of condition code.Visible light signal transmission is not subject to electromagnetic interference, does not have a penetrability, thereby has very high fail safe.
System of the present invention can be used at present a large amount of smart machines to assist, and has very high extensibility; Can check article in enormous quantities simultaneously simultaneously, greatly save the cost of manpower and enterprise simultaneously.
Brief description of the drawings
Fig. 1 is the anti-counterfeit recognition system one embodiment block diagram that the present invention is based on LED visible ray;
Fig. 2 is a kind of Antiforge recognizing method basic flow sheet of realizing based on Fig. 1 embodiment system.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with accompanying drawing and embodiment, the present invention is further elaborated.
Referring to Fig. 1, in the present embodiment, smart machine adopts smart mobile phone M1, and on smart mobile phone M1, configuration information modulator 3, installation verification application software are (as functional operation device 2, seed maker 1 ...) for receiving user's input and carrying out computing ...LED optical transmitting set comprises LED driver 4 and LED lamp 5, and by smart mobile phone, M1 controls.In embodiment, LED driver 4 and LED lamp 5 preferably use the LED photoflash lamp in smart mobile phone.
Installation diagram 1 signal receiving device M2 in certain packaging for foodstuff to be verified, this device M2 comprises optical-electrical converter 7, message handler 8 and the information display 9 with light receiving tube 6, they connect successively.
In the message handler 8 of smart mobile phone M1 and this device M2, all preset multiple encryption algorithms, a code of every kind of cryptographic algorithm configuration.Multiple encryption algorithms comprises irreversible encryption algorithm, as MD5(Message-Digest Algorithm 5 Message Digest 5s 5), SHS (the safe gibberish standard of Secure Hash Standard) etc.
Produce random number by smart mobile phone M1, and select at random cryptographic algorithm generating feature code, the information such as condition code are seen through to mobile phone LED flash lamp LED lamp and send information to this device M2.This device M2 receiving optical signals is converted to the signal of telecommunication, and then demodulation completes checking, and points out out the true and false of article in the mode of red green LED.
In Fig. 1 embodiment, verification software is installed on smart mobile phone M1, it is to be noted that the present invention is not limited in smart mobile phone, the intelligent equipment with LED etc. can be realized this function; Same signal receiving device M2 does not limit to be installed in packaging for foodstuff and uses, and can be arranged on any article that need to check the true and false and use.
The recognition methods of article anti-counterfeit shown in Fig. 2 comprises the steps:
In step S001, smart mobile phone M1 application software generates random code;
In step S002, use the random number (being seed) of S001 generation, and select at random a kind of cryptographic algorithm as MD5 algorithm and carry out condition code computing, generating feature code; Using the code of described condition code, described random number and described MD5 algorithm as authentication information, modulate with OOK coding;
In step S003, the authentication information after modulation sends with visible light signal by LED photoflash lamp (in smart mobile phone M1);
In step S004, signal receiving device M2 receives visible light signal, convert the signal of telecommunication to and demodulate the code of condition code described in step S002, described random number and described MD5 algorithm, adopt MD5 algorithm to recalculate condition code, and whether new condition code and the described condition code obtaining of comparison be identical, finally demonstrate the true and false information of article.
Above-described embodiment and detailed description, only for explaining the present invention, can not be used for limiting the present invention.Those skilled in the art conceive according to the present invention, these descriptions any improvement of making in conjunction with general knowledge known in this field, be equal to replacement scheme, all should be included in the protection range of the claims in the present invention.
Claims (10)
1. the anti-counterfeit recognition system based on LED visible ray, is characterized in that comprising:
Smart machine, information modulation, by the LED optical transmitting set of smart machine control, and is arranged at the optical-electrical converter and the message handler that on the article that are identified, also connect successively; Described smart machine, for generation of the authentication information containing condition code, is modulated with OOK coding, and is sent with visible light signal through visible light emitter; Described optical-electrical converter is for being converted to the signal of telecommunication by the visible light signal of receiving; Described message handler, for this signal of telecommunication of demodulation, recalculates condition code, and with the whether identical identify objects true and false that compares of condition code.
2. system according to claim 1, is characterized in that, in described smart machine and described message handler, all presets multiple encryption algorithms, a code of every kind of cryptographic algorithm configuration.
3. system according to claim 1 and 2, it is characterized in that, the production method of the described authentication information containing condition code is: the random number that described smart machine is produced or the article characteristics code reading are as seed, a kind of cryptographic algorithm of random selection calculates condition code, and the code of described condition code, described checking seed and described selected encryption algorithm is as the described authentication information containing condition code.
4. system according to claim 3, it is characterized in that, described message handler recalculates condition code step: described in demodulation after the signal of telecommunication, obtain the code of described condition code, described seed and described selected encryption algorithm, recalculate condition code by cryptographic algorithm corresponding to this code and described seed.
5. method according to claim 1 and 2, is characterized in that, described smart machine is smart mobile phone, computer or ipad.
6. the Antiforge recognizing method based on LED visible ray, is characterized in that taking following steps:
Smart machine uses seed, selects at random a kind of cryptographic algorithm to carry out condition code computing, generating feature code; Using the code of described condition code, described seed and described selected encryption algorithm as the authentication information containing condition code, modulate with OOK coding, and send with visible light signal through visible light emitter;
Receive this visible light signal by an optical-electrical converter, and be converted to the signal of telecommunication; By this signal of telecommunication of message handler demodulation, obtain the code of described condition code, described seed and described selected encryption algorithm, recalculate condition code by cryptographic algorithm corresponding to this code and described seed, and compare so that whether condition code is identical, demonstrate the true and false information of article.
7. method according to claim 6, is characterized in that, described seed is the random number of described smart machine generation or the article characteristics code reading.
8. according to the method described in claim 6 or 7, it is characterized in that, described article characteristics code refers to the product serial code of prining on article.
9. according to the method described in claim 6 or 7, it is characterized in that, in described smart machine and described message handler, all preset multiple encryption algorithms, a code of every kind of cryptographic algorithm configuration.
10. method according to claim 8, is characterized in that, described multiple encryption algorithms comprises irreversible encryption algorithm, as MD5 algorithm and SHS algorithm.
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| CN201410075937.5A CN103873144A (en) | 2014-03-04 | 2014-03-04 | LED (light-emitting diode) visible light-based anti-fake identification method and system |
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| CN201410075937.5A CN103873144A (en) | 2014-03-04 | 2014-03-04 | LED (light-emitting diode) visible light-based anti-fake identification method and system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105447429A (en) * | 2015-07-23 | 2016-03-30 | 上海易码信息科技有限公司 | Light pulse communication method and system |
| CN110163637A (en) * | 2019-06-12 | 2019-08-23 | 深圳市海派特光伏科技有限公司 | Fake certification circuit and illuminating circuit based on optical signal |
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Application publication date: 20140618 |