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46results about How to "Anti-counterfeiting realization" patented technology

Laser anti-counterfeit marking method for product with complex profile

ActiveCN102785029AHas its own anti-counterfeiting effectAchieve independenceLaser beam welding apparatusMachining processComputer science
The invention relates to a laser anti-counterfeit marking method for a product with a complex profile. An anti-counterfeit mark pattern is designed in a specific anti-counterfeit zone, a vector pattern of an anti-counterfeit mark is split and a process reference point is selected by a specific splitting algorithm, short segments are scanned and machined according to specific process parameters, and finally the anti-counterfeit mark pattern can be marked on the surface of the product with the complex profile. Since position information, splitting information and machining process parameter information are carried in the anti-counterfeit mark pattern, counterfeiters need to obtain the accurate curved surface model of the complete profile, the accurate contour and position of the anti-counterfeit marking zone, the specific algorithm for splitting of the vector pattern of the anti-counterfeit mark, the specific algorithm for selection of the process reference point, laser process parameters of the short segments and the like for counterfeiting in addition to a laser machining device, all the information is key to counterfeiting, and thus technical difficulties in counterfeiting are improved. Therefore, the laser anti-counterfeit marking method has good anti-counterfeiting effects.
Owner:WENZHOU UNIVERSITY

Method and device for anti-counterfeiting of artwork based on block chain

The invention relates to a block chain-based artwork anti-counterfeiting method and device. The method comprises: preserving the information of a first artwork; acquiring image information of the second artwork; comparing the image information of the second artwork with the image information of the first artwork, and if the comparison result is consistent, verifying that the second artwork and thefirst artwork are the same artwork; otherwise, the second artwork and the first artwork are not the same artwork, and the verification fails. The invention completes the comparison and verification of the traded artwork and the seller's pre-sold traded artwork by uploading the image information of the traded artwork by the buyer user during the trading. The method can ensure that the artwork actually bought by the buyer is the artwork seen at the beginning in the process of the art transaction, and avoid the problem of being imitated and replaced in the process of the transaction, which is conducive to ensuring the economic interests of the buyer and the user. The method adopts the image attribute of the artwork itself to realize the anti-counterfeit of the artwork, and the anti-counterfeit is higher.
Owner:深圳市航成机械设备有限公司

Document anti-counterfeiting generation and identification method, a printing driver and a document anti-counterfeiting system

The invention discloses a document anti-counterfeiting generation and identification method and a printing driver and system. The generation method comprises the following steps: (1) setting an anti-counterfeiting plaintext; (2) setting an encrypted image; (3) printing and outputting; the identification method comprises the following steps: (1) obtaining an encrypted image; (2) obtaining a decrypted image; (3) obtaining a graph in the decrypted image by using an image recognition algorithm; (4) data matching; wherein the document anti-counterfeiting printing driver comprises an anti-counterfeiting module, the document anti-counterfeiting system comprises a printing driver and an anti-counterfeiting module arranged in the printing driver, and the anti-counterfeiting module realizes documentanti-counterfeiting through the document anti-counterfeiting generation method. The method and the device are used for solving the problems that in the prior art, an anti-counterfeiting document embedded with anti-counterfeiting information is complex in manufacturing and printing and high in implementation difficulty, the risk that the document is tampered or damaged exists in the circulation process, the risk that the document is counterfeited by utilizing high-precision copying equipment, and the document cannot be protected after the anti-counterfeiting information is attacked or perceived.
Owner:NANJING FORESTRY UNIV

Internal laser writing method capable of being used for anti-counterfeiting judgment of commodities packaged by transparent materials

Disclosed is an internal laser writing method capable of being used for anti-counterfeiting judgment of commodities packaged by transparent materials. According to the method, a point cloud data file is generated by a selected pattern; the pointed cloud data file is lead in to form point cloud marking data software, the repetition frequency of a laser device is adjusted to range from 1500Hz to 1800Hz, the laser pulse width ranges from 50 micron seconds to 65 micro seconds, the laser power ranges from 532mw to 760mw, the focusing facula is 30 micro meters, the moving speed of a processing platform is 16000p/s, the scanning speed of a galvanometer is 3000bit/ms, and internal laser carving is conducted on the internal surfaces of materials. According to an anti-counterfeiting technology, markings are marked on the inner surfaces of the materials, and consumers can clearly see the anti-counterfeiting marks only after clearly identifying angles and marking patterns. The internal laser writing method effectively avoids the lawless behaviors that lawless persons reproduce adulterated wine after recycling wine bottles to deceive consumers, and is suitable for anti-counterfeiting judgment of commodities packaged by all kinds of transparent materials.
Owner:BEIJING UNIV OF TECH

Method for preparing bionic structural color and mechanical property double-response component regulated and controlled by magnetic field through multi-material direct-writing 3D printing and product

The invention discloses a method for preparing a magnetic field-regulated bionic structural color and mechanical property double-response component through multi-material direct-writing 3D printing and a product. The method comprises the following steps of: dispersing superparamagnetic nanoparticles in a non-volatile alcohol solvent to form a photonic crystal colloid mixed solution, mechanically stirring and mixing the photonic crystal colloid mixed solution with a rubber-like elastomer, and embedding photonic crystals into the rubber-like elastomer to form micro-emulsion drops, so as to obtain rubber-like elastomer composite printing slurry; using mineral oil-fumed silica nanoparticle suspension as a support, and using a biological printer to perform direct-writing 3D printing to obtain the magnetic field-regulated bionic structural color and mechanical property double-response component. By means of direct-writing 3D printing, components of different shapes can be formed and are not limited by templates; and double response is realized through external magnetic field regulation, and non-contact regulation can be realized. The preparation method is simple and convenient and low in cost; and the double-responsecomponent is long in structural color retention time and reusable, and has obvious advantages in information encryption and commodity anti-counterfeiting.
Owner:NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI

Anti-counterfeit method by comparing product serial number with codes

The invention discloses an anti-counterfeit method by comparing a product serial number with codes. In the method, software is first developed to be installed in a computer to playing the function of retrieving two groups of codes formed by 3-100 from 6-200 character codes, the first group is serial numbers and the second is codes, and an independent identification combination is formed by combining a serial number and a code; the identification combination data is automatically stored in a database established by a manufacture factory through the software installed in the computer; and simultaneously the computer prints the identification combination on a product label via a printer, and prints an expandable coating to cover the identification combination; afterwards the label printed with the identification combination is glued with special glue on a product; and the product manufacture factory creates a nationwide query telephone number, when a consumer informs a query staff of the identification combination data, the genuineness of the inquired product can be known. The invention eradicates the possibility of counterfeiting an anti-counterfeit trademark by a counterfeiter, overcomes the defects of the prior anti-counterfeit methods, realizes anti-counterfeit of products actually, and is suitable for anti-counterfeit of various products.
Owner:习杨

A rfid electronic tag with anti-counterfeiting function

The invention relates to the technical field of RFID electronic tags, and specifically discloses an RFID electronic tag with an anti-counterfeiting function, including a tag body and a traction strip, a first die-cutting line is provided between the label body and the traction strip; the label body is provided with The electronic tag chip, the main antenna and the anti-counterfeiting closed loop, the anti-counterfeiting closed loop includes the main coil fixed in the main body of the label and the traction coil extending into the traction strip; the traction coil and the main coil are respectively fixed by glue materials of different strengths, and So that when there is an external force to tear the surface material of the main body of the label and the top surface of the traction strip, the traction coil and the main coil are broken. The beneficial effect of the present invention is that the anti-counterfeiting closed loop uses part of the fragile antenna technology and adhesive layers of different strengths, so that the anti-counterfeiting closed loop cannot be repeatedly peeled off after being pasted on the surface of the object, thereby realizing the anti-counterfeiting of the product.
Owner:江苏科睿坦电子科技有限公司

Preparation method of calcium carbonate coated DNA-fluorescent dye composite nano gel dual anti-counterfeiting coating

The invention relates to a preparation method of a calcium carbonate coated DNA-fluorescent dye composite nano gel dual anti-counterfeiting coating. The preparation method comprises the following steps: firstly, mixing DNA and a fluorescent dye with a gelatin solution, adding a cross-linking agent for cross-linking curing to coat the DNA and the fluorescent dye in a gelatin nano gel grid, and thencoating the nano gel with calcium carbonate to obtain the calcium carbonate coated DNA-fluorescent dye composite nano gel, so that the DNA and the fluorescent dye are isolated from the outside, and the light-dark dual anti-counterfeiting coating with long storage period, stable structure and easy detection is prepared. Light anti-counterfeiting is realized by the fluorescent dye, and dark anti-counterfeiting is realized by the DNA. Due to the unknown property and expandability of the DNA, the DNA can be detected through polymerase-chain reaction amplification and electrophoresis analysis onlyby knowing the DNA sequence and designing a specific primer, and thus dark anti-counterfeiting is realized. According to the invention, the purposes of difficult matching and cooperative anti-counterfeiting are achieved, and the anti-counterfeiting effect and the counterfeiting difficulty are greatly increased.
Owner:湖南省南盾防伪技术实业有限公司

Two-dimensional code anti-counterfeiting method based on error correction code domain

PendingCN113935447AAnti-counterfeiting realizationFeatures that will not affect normal readingRecord carriers used with machinesAlgorithmOriginal data
The invention discloses a two-dimensional code anti-counterfeiting method based on an error correction code domain. The two-dimensional code anti-counterfeiting method comprises the steps of generating an original two-dimensional code graph according to original data information; acquiring an error correction code domain pixel block; replacing or modifying a part of pixel blocks of the error correction code domain according to a preset mode, and generating an anti-counterfeiting two-dimensional code graph in combination with the information domain of the original two-dimensional code graph; and scanning the two-dimensional code graph of the product tagging area through a two-dimensional code scanning terminal, comparing the two-dimensional code graph with the anti-counterfeiting two-dimensional code graph serving as the anti-counterfeiting mark in information content and error correction code domain change records, and confirming whether the information is consistent or not. The method comprises using an error correction code domain, where the normal reading characteristic of the two-dimensional code cannot be influenced by changing the coding content; randomly replacing a part of pixel blocks in an error correction code domain to generate an anti-counterfeiting two-dimensional code graph; when the content of the two-dimensional code is acquired through an image, the two-dimensional code is compared with an anti-counterfeiting two-dimensional code serving as an anti-counterfeiting mark, whether the information is completely consistent or not is confirmed, and the anti-counterfeiting function of the two-dimensional code is achieved from the aspect of physical characteristics.
Owner:厦门领研科技有限公司

Bottle cap anti-counterfeiting device

The invention discloses a bottle cap anti-counterfeiting device. The bottle cap anti-counterfeiting device comprises a tube base, wherein the tube base is of a cylindrical shell; the upper surface ofthe tube base is provided with a convex arc surface; a through hole is formed in the middle of the arc surface of the tube base; the upper end of the tube base is provided with an upper cap; the lowersurface of the upper cap is provided with a concave arc surface matched with the convex arc surface of the tube base; and a soft plug is arranged on a position of the concave surface, opposite to thethrough hole, of the upper cap. The bottle cap anti-counterfeiting device has a simple structure; through cooperation of the upper cap and the tube base, sealing is realized; the upper cap is slid and turned along the tube base, so that the upper cap is convenient to open; due to the soft plug, the overall airtightness is ensured; through coordination of the upper ends of inserting plates and slots, locking of the tube base and the upper cap is realized; the inserting plates can be broken along the positions of lateral grooves, so that limitation is released; due to design of an internally-arranged locking piece, unartificial collision damage is avoided, and the use strength is improved; through rotation of a twist ring, control of the inserting plates is realized, opening is convenient,the upper cap is not rigidly limited after the upper ends of the inserting plates are broken, and use situations of the bottle cap can be effectively distinguished, so that counterfeit prevention is realized.
Owner:河北红帽子制盖有限公司
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