CN113139630B - Anti-counterfeiting information generation unit, generation device, reading device and anti-counterfeiting system - Google Patents
Anti-counterfeiting information generation unit, generation device, reading device and anti-counterfeiting system Download PDFInfo
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- CN113139630B CN113139630B CN202010003318.0A CN202010003318A CN113139630B CN 113139630 B CN113139630 B CN 113139630B CN 202010003318 A CN202010003318 A CN 202010003318A CN 113139630 B CN113139630 B CN 113139630B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K17/00—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q30/00—Commerce
- G06Q30/018—Certifying business or products
- G06Q30/0185—Product, service or business identity fraud
Abstract
The embodiment of the invention provides an anti-counterfeiting information generating unit, an anti-counterfeiting information generating device, a reading device and an anti-counterfeiting system, wherein the anti-counterfeiting information generating unit comprises: the cavity is provided with a light transmission area capable of emitting parallel light beams; the shielding plate is movably arranged in the cavity, so that the projection generated by the shielding plate in the light transmission area changes the width of the emergent parallel light beam; and the shielding plate control unit is used for controlling the shielding plate to move according to one numerical value in the commodity anti-counterfeiting code, so that the emergent parallel light beams are adjusted to reach the preset width. The embodiment of the invention performs the characterization of the commodity anti-counterfeiting code in a mode of emitting parallel light beams, so that the counterfeiting cost and difficulty are forced to reach the height which cannot be achieved.
Description
Technical Field
The present invention relates to the field of anti-counterfeiting technologies, and more particularly, to an anti-counterfeiting information generating unit, generating device, reading device, and anti-counterfeiting system.
Background
The prior leading anti-counterfeiting technologies mainly comprise a knife coating anti-counterfeiting label technology, a dripping disappearance anti-counterfeiting label technology, a two-dimensional code anti-counterfeiting label technology, a self-adhesive electronic label technology and the like, and the problems of easy copying, high false recognition rate and the like exist although the technologies have the advantages of low cost and easy circulation, and the security of the anti-counterfeiting label is low.
Traditional anti-counterfeiting methods can not meet the requirements of people, are easy to imitate and copy, and bring great economic loss to society. In the face of such demands, how to increase the information content of the anti-counterfeiting label of the commodity and make the anti-counterfeiting label difficult to imitate and copy is an important problem to be solved in the current stage.
Disclosure of Invention
Embodiments of the present invention provide an anti-counterfeiting information generating unit, generating device, reading device and anti-counterfeiting system that overcome or at least partially solve the above-described problems.
In a first aspect, an embodiment of the present invention provides an anti-counterfeiting information generating unit, including:
the cavity is provided with a light transmission area capable of emitting parallel light beams;
the shielding plate is movably arranged in the cavity, so that the projection generated by the shielding plate in the light transmission area changes the width of the emergent parallel light beam;
and the shielding plate control unit is used for controlling the shielding plate to move according to one numerical value in the commodity anti-counterfeiting code, so that the emergent parallel light beams are adjusted to reach the preset width.
Further, the shielding plate control unit includes: a bias control module and an elongated electroactive polymer;
the bias control module is connected with the first end and the second end of the electroactive polymer and is used for loading a voltage value set according to one numerical value in the commodity anti-counterfeiting code to two ends of the electroactive polymer;
the first end of the electroactive polymer is abutted against the shielding plate, and the second end of the electroactive polymer is fixedly connected with the cavity, so that when the electroactive polymer changes the length according to the voltage output by the bias control module, the movement of the shielding plate is controlled.
Further, one end of the shielding plate is hinged in the cavity, so that the projection generated in the light-transmitting area when the shielding plate rotates around the hinge is changed, and the width of the emergent parallel light beam is changed; the electroactive polymer is positioned in a direction parallel to the parallel light beam.
Further, the shielding plate control unit further includes:
the first storage module is used for outputting the voltage value set by the commodity anti-counterfeiting code to the bias control module.
Further, the first storage module is further configured to: when a preset condition is triggered, the voltage value is cleared and a new voltage value is output.
Further, when the voltage value is lower than a preset threshold value, the projection generated by the shielding plate on the light-transmitting area completely covers the light-transmitting area.
In a second aspect, an embodiment of the present invention provides an anti-counterfeiting information generating device, including an array formed by connecting anti-counterfeiting information generating units in series;
the voltage value corresponding to the bias voltage control module in each anti-counterfeiting information generation unit in the array corresponds to each numerical value in the commodity anti-counterfeiting code.
In a third aspect, an embodiment of the present invention provides an anti-counterfeiting information reading apparatus, including:
the signal receiving module is used for collecting the image of the parallel light beam emitted by the anti-fake information generating unit;
the signal processing module is used for determining the width of the parallel light beam in the image of the parallel light beam according to a preset image processing algorithm, comparing the width of the parallel light beam with preset parallel light beam calibration data and determining the numerical value of the commodity anti-counterfeiting code corresponding to the parallel light beam calibration data with the same width;
and the output module is used for displaying or sending the numerical value of the commodity anti-counterfeiting code.
Further, the anti-counterfeiting information reading device further includes:
and the second storage module is used for storing the image processing algorithm, the parallel light beam calibration data and the numerical value of the commodity anti-counterfeiting code corresponding to the parallel light beam calibration data.
In a fourth aspect, an embodiment of the present invention further provides an anti-counterfeiting system, including: the above-described anti-counterfeit information generation device and the above-described anti-counterfeit information reading device.
The anti-counterfeiting information generation unit, the generation device, the reading device and the anti-counterfeiting system provided by the embodiment of the invention, wherein the anti-counterfeiting information generation unit performs commodity anti-counterfeiting code representation in a mode of emitting parallel light beams, so that imitation cost and difficulty are forced to reach an unreachable height, and the imitation anti-counterfeiting information generation device cannot record real and effective information because the confirmation of the width of the parallel light beams has extremely high accuracy even if the same anti-counterfeiting information generation device is imitated, and the specific meaning of the width is unknown to an imitation.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of an anti-counterfeiting information generating unit according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an anti-counterfeiting information generating unit according to another embodiment of the present invention;
FIG. 3 is a schematic diagram of an apparatus for generating security information according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of the result of an anti-counterfeit information reading device according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of an anti-counterfeiting system according to an embodiment of the present invention;
fig. 6 is a schematic diagram of a workflow of an anti-counterfeiting system according to an embodiment of the invention.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Fig. 1 is a schematic structural diagram of an anti-counterfeiting information generating unit according to an embodiment of the present invention, as shown in fig. 1, including a cavity 101, a shielding plate 102, and a shielding plate control unit 103, specifically:
a cavity 101 having a light-transmitting region capable of emitting parallel light beams;
it should be noted that, the light-transmitting area in the cavity of the embodiment of the present invention may be a through hole or a light-transmitting film material, which is not specifically limited in the embodiment of the present invention, it is understood that the light-emitting source of the parallel light beam (indicated by the arrow in fig. 1) may be disposed in the cavity or outside the cavity, and when disposed outside the cavity, it is obvious that two light-transmitting areas need to be disposed in the cavity. The cavity in fig. 1 is in a cube structure, and when the cavity has two light-transmitting areas, the two light-transmitting areas are two planes which are arranged up and down.
A shielding plate 102 movably disposed in the cavity such that a projection of the shielding plate generated at the light-transmitting region changes a width of an outgoing parallel light beam;
it will be appreciated that the purpose of the shielding plate is to shield the parallel light beams and that by moving the shielding plate a change from not shielding the parallel light beams to shielding the parallel light beams entirely is achieved. The moving mode of the shielding plate is not particularly limited, for example, the shielding plate can be placed along an angle perpendicular to a parallel light beam, and the purpose of shielding the parallel light beam can be achieved by moving along the angle perpendicular to the parallel light beam; in addition, the shielding plate can be hinged in the cavity, the shielding plate rotates in the cavity, and the emergent width of the parallel light beam is controlled by adjusting the included angle between the shielding plate and the parallel light beam.
The shielding plate control unit 103 is configured to control movement of the shielding plate according to a value in the commodity anti-counterfeiting code, so as to adjust the emergent parallel light beam to reach a preset width, specifically, the shielding plate control unit according to the embodiment of the present invention may include a motor, determine, in advance, a relationship between the emergent width of the parallel light beam and the emergent width of the parallel light beam according to a relationship between the value of the commodity anti-counterfeiting code and the emergent width of the parallel light beam, and further determine, according to a determination of the shielding plate, a working time for moving the electrode, for example, if the emergent width of the parallel light beam corresponding to a certain value is 10 micrometers, the shielding plate moves in a direction perpendicular to the parallel light beam, and if the shielding plate is to completely shield the parallel light beam in an initial state, it is known that if the shielding plate needs to be moved by 10 micrometers in order to display the value, the working time required for moving the shielding plate by 10 micrometers can be determined by combining the power of the electrode. It can be understood that the numerical values in the embodiment of the present invention may be Arabic numerals, letters, characters, chinese characters, etc., and the numerical value range of the embodiment of the present invention is not particularly limited.
The anti-counterfeiting information generating unit of the embodiment of the invention performs commodity anti-counterfeiting code characterization in a mode of emitting parallel light beams with different widths, forces imitation cost and difficulty to reach an unreachable height, and because the confirmation of the widths of the parallel light beams has extremely high accuracy, even if the same anti-counterfeiting information generating device is imitated, the specific meaning of the widths is unknown to the imitated, so that the imitated anti-counterfeiting information generating device cannot record real and effective information.
On the basis of the above embodiments, as an alternative embodiment, the shielding plate control unit includes: bias control module and elongated electroactive polymer, specifically:
the bias control module is connected with the first end and the second end of the electroactive polymer and is used for loading a voltage value set according to one numerical value in the commodity anti-counterfeiting code to two ends of the electroactive polymer;
the first end of the electroactive polymer is abutted against the shielding plate, and the second end of the electroactive polymer is fixedly connected with the cavity, so that when the electroactive polymer changes the length according to the voltage output by the bias control module, the movement of the shielding plate is controlled.
Electroactive polymers (Dielectric Electro Active Polymer, DEAP), also Dielectric Elastomers (DE), are smart materials with unique electrical and mechanical properties. The shielding plate control unit of the embodiment of the invention uses the characteristics that the inverse piezoelectric effect is generated when different voltages are applied to the two ends of the electroactive polymer, and the shape of the electroactive polymer is changed when the inverse piezoelectric effect is generated, and takes the electroactive polymer and the bias control module as the shielding plate control unit. Compared with the traditional piezoelectric material, the electroactive polymer material has larger strain capacity, light weight, high driving efficiency and good shock resistance.
Embodiments of the present invention allow the shield to be moved to different positions by providing different biases to the electroactive polymer. When the parallel light beams are emitted from the anti-counterfeiting information generation unit, the shielding plates at different positions can shield light in different proportions.
The connection relation between the electroactive polymer and the shielding plate in the embodiment of the invention can be that the axial direction of the electroactive polymer is parallel to the plane where the shielding plate is positioned and the width direction of the light path, and is perpendicular to the light path of the light beam, so that when the electroactive polymer stretches or contracts, the shielding plate is driven to translate, and the width of the light beam is reduced or increased.
On the basis of the above embodiments, as an alternative embodiment, one end of the shielding plate is hinged in the cavity, so that the projection generated in the light-transmitting area when the shielding plate rotates around the hinge changes the width of the emergent parallel light beam. The electroactive polymer is positioned in a direction parallel to the parallel light beam.
It should be noted that, in the embodiment of the present invention, the width of the parallel light beam is controlled by the shielding plate in a rotating manner, not in a translational manner, so that the shielding plate can be supported to a higher height by increasing the bias voltage, and the width of the parallel light beam is made to be larger.
Fig. 2 is a schematic structural diagram of an anti-counterfeiting information generating unit according to another embodiment of the present invention, as shown in fig. 2, a cavity 201 in the anti-counterfeiting information generating device is in a cube structure, an upper plane and a lower plane of the cavity are made of light-permeable materials, parallel light beams (indicated by arrows) are injected into the cavity from the lower plane, the shielding plate 202 can rotate around a hinge 204 as a center, and the top of the electroactive polymer 203 is abutted against the shielding plate, it can be understood that by adjusting the bias of the electroactive polymer, the rotation angle of the shielding plate 202 is enlarged or reduced, and the arrows in fig. 2 indicate the parallel light beams, obviously, when the rotation angle of the shielding plate 202 is enlarged, the width of the parallel light beams which can be emitted from the top of the anti-counterfeiting information generating unit is also enlarged.
On the basis of the above embodiments, as an alternative embodiment, when the voltage value is lower than a preset threshold value, the projection generated by the shielding plate on the light-transmitting area completely covers the light-transmitting area.
When the voltage value is smaller than the preset threshold value, the shielding plate enables the anti-counterfeiting information generating unit to be opaque, the opaque anti-counterfeiting information generating unit can be used as the anti-counterfeiting information generating unit carrying special information, the special information can be that the commodity anti-counterfeiting code is finished, and the embodiment of the invention is not limited specifically.
On the basis of the above embodiments, as an alternative embodiment, the shielding plate control unit further includes: the first storage module is used for outputting the voltage value set by the commodity anti-counterfeiting code to the bias control module.
It should be noted that, in the embodiment of the present invention, the voltage value is output by the first storage module, so that the bias control module can directly control the deformation of the electroactive polymer according to the received voltage value, and the voltage design scheme is also convenient for the user to set.
On the basis of the above embodiments, as an alternative embodiment, the first storage module is further configured to: when a preset condition is triggered, the voltage value is cleared and a new voltage value is output.
The preset condition of the embodiment of the invention can be that when the anti-counterfeiting information generating device is placed on other commodities, the cleared storage module can be written into a new voltage design method, so that the aim of repeated use can be achieved, and the advantage is that the existing anti-counterfeiting label does not have.
The embodiment of the invention also provides a device for generating the anti-counterfeiting information, which comprises the following steps: an array formed by connecting a plurality of anti-counterfeiting information generating units according to the embodiments in series;
the voltage value corresponding to the bias voltage control module in each anti-counterfeiting information generation unit in the array corresponds to each numerical value in the commodity anti-counterfeiting code. It can be understood that when the anti-counterfeiting information generating units are connected in series to form an array, each bias control module capable of outputting voltage correspondingly forms an array.
Fig. 3 is a schematic structural diagram of an anti-counterfeiting information generating device according to an embodiment of the present invention, as shown in fig. 3, the anti-counterfeiting information generating device is formed by connecting 3 anti-counterfeiting information generating units in series, arrows represent parallel light beams, rectangular frames with filling oblique lines are used for representing widths of the outgoing parallel light beams, and in fig. 3, the widths of the parallel light beams (represented by the arrows) outgoing from the anti-counterfeiting information generating units are different, so that different numerical values can be represented, and as can be seen from the figure, the parallel light beams outgoing from the 3 anti-counterfeiting information generating units from left to right represent the numerical values 3, 6 and 9, respectively.
Fig. 4 is a schematic diagram of the result of the anti-counterfeiting information reading apparatus according to the embodiment of the invention, as shown in fig. 4, including:
a signal receiving module 401, configured to collect an image of a parallel light beam emitted from the anti-counterfeiting information generating unit according to each embodiment;
specifically, the signal receiving module of the embodiment of the present invention includes a receiving plane and an image capturing unit, where the color of the receiving plane is preferably a dark color, for example, black, and the image capturing unit is capable of capturing a pattern of light beams appearing on the receiving plane, and obviously, when the width of the light beams in the pattern increases, the area of bright colors in the pattern also increases.
The signal processing module 402 is configured to determine a width of a parallel beam in the image of the parallel beam according to a preset image processing algorithm, compare the width of the parallel beam with preset parallel beam calibration data, and determine a value of a commodity anti-counterfeiting code corresponding to the parallel beam calibration data with the same width.
It should be noted that, the signal processing module may determine the width of the parallel light beam in advance according to the relationship between the size of each pixel point in the pattern and the actual width of the light beam, and according to the number of pixels occupied by the bright color area in the pattern. And the signal processing module is also used for comparing the width of the parallel light beam with preset parallel light beam calibration data and determining the numerical value of the commodity anti-counterfeiting code corresponding to the parallel light beam calibration data with the same width. The foregoing embodiments have enumerated values of commodity anti-counterfeiting codes corresponding to the parallel light beam verification data with consistent determined widths, and the embodiments of the present invention are not described herein again.
And the output module 403 is configured to display or send the value of the commodity anti-counterfeiting code.
The output module of the embodiment of the invention can directly display the numerical value of the commodity anti-counterfeiting code, and can also send the obtained numerical value of the commodity anti-counterfeiting code to other equipment for display.
On the basis of the above embodiments, as an alternative embodiment, the anti-counterfeiting information reading device further includes:
and the second storage module is used for storing the image processing algorithm, the parallel light beam calibration data and the numerical value of the commodity anti-counterfeiting code corresponding to the parallel light beam calibration data.
On the basis of the foregoing embodiments, as an alternative embodiment, an embodiment of the present invention further provides an anti-counterfeiting system, and fig. 5 is a schematic structural diagram of the anti-counterfeiting system according to the embodiment of the present invention, as shown in fig. 5, including an anti-counterfeiting information generating device 501 and an anti-counterfeiting information reading device 502, specifically:
the anti-counterfeiting information generating device 501 is used for emitting parallel light beams with corresponding widths according to the numerical value of the commodity anti-counterfeiting code to be generated.
It should be noted that, instead of directly displaying each value of the commodity anti-counterfeiting code, the anti-counterfeiting information generating device 501 in the embodiment of the present invention characterizes each value of the commodity anti-counterfeiting code with parallel light beams of different widths, and since each value of the commodity anti-counterfeiting code is determined by a legal manufacturer of the commodity, only the legal manufacturer of the commodity knows the parallel light beam widths corresponding to different values.
The number of the parallel light beams generated by the anti-counterfeiting information generating device can be all the values of the commodity anti-counterfeiting code to be generated when the number of the parallel light beams is only 1, and the number of the parallel light beams generated by one anti-counterfeiting information generating device can be part of the values of the commodity anti-counterfeiting code to be generated when the number of the parallel light beams is a plurality of the parallel light beams, and the parallel light beams of the complete commodity anti-counterfeiting code can be emitted by sequentially emitting the parallel light beams from the anti-counterfeiting information generating devices. In addition, the anti-counterfeiting information generating device can also periodically emit parallel light beams with corresponding widths, so that one anti-counterfeiting information generating device can represent a plurality of numerical values of commodity anti-counterfeiting codes through emitting the parallel light beams for a plurality of times.
The anti-counterfeiting information reading device 502 is configured to receive the parallel light beam emitted by the anti-counterfeiting information generating device, compare the parallel light beam with preset parallel light beam calibration data, and obtain a value of the commodity anti-counterfeiting code corresponding to the received parallel light beam according to a comparison result.
It should be noted that, by receiving the parallel light beam emitted by the anti-counterfeiting information generating device, the anti-counterfeiting information reading device of the embodiment of the invention compares the parallel light beam with the preset parallel light beam calibration data, and the numerical value of the commodity anti-counterfeiting code corresponding to the received parallel light beam can be obtained according to the comparison result. For example, the anti-counterfeiting information reading apparatus stores in advance a parallel light beam proof data corresponding value 3 having a width of 10 micrometers, and if the width of the received parallel light beam is also 10 micrometers, determines that the value of the commodity anti-counterfeiting code corresponding to the received parallel light beam is 3.
Fig. 6 is a schematic diagram of a workflow of an anti-counterfeiting system according to an embodiment of the present invention, where the workflow shown in fig. 6 includes:
s101, a first storage module outputs a voltage value set by the commodity anti-counterfeiting code to the bias control module;
s102, the bias control module loads a voltage value onto the electroactive polymer so that the shielding plate is displaced;
s103, the parallel light beams are shielded by the shielding plate, emitted from the light-transmitting area of the cavity, and collected by the signal receiving module to obtain images of the parallel light beams;
s104, the second storage module sends an image processing algorithm, the parallel light beam calibration data and the numerical value of the commodity anti-counterfeiting code corresponding to the parallel light beam calibration data to the signal processing module;
s105, a signal processing module determines the width of the parallel light beam in the image of the parallel light beam according to an image processing algorithm, compares the width of the parallel light beam with preset parallel light beam calibration data, and determines the numerical value of the commodity anti-counterfeiting code corresponding to the parallel light beam calibration data with the same width;
and S106, the output module displays or transmits the numerical value of the commodity anti-counterfeiting code.
The apparatus embodiments described above are merely illustrative, wherein the elements illustrated as separate elements may or may not be physically separate, and the elements shown as elements may or may not be physical elements, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art will understand and implement the present invention without undue burden.
From the above description of the embodiments, it will be apparent to those skilled in the art that the embodiments may be implemented by means of software plus necessary general hardware platforms, or of course may be implemented by means of hardware. Based on this understanding, the foregoing technical solution may be embodied essentially or in a part contributing to the prior art in the form of a software product, which may be stored in a computer readable storage medium, such as ROM/RAM, a magnetic disk, an optical disk, etc., including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the method described in the respective embodiments or some parts of the embodiments.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (9)
1. An anti-counterfeiting information generating unit, comprising:
the cavity is provided with a light transmission area capable of emitting parallel light beams;
the shielding plate is movably arranged in the cavity, so that the projection generated by the shielding plate in the light transmission area changes the width of the emergent parallel light beam;
the shielding plate control unit is used for controlling the shielding plate to move according to one numerical value in the commodity anti-counterfeiting code so as to adjust the emergent parallel light beams to reach a preset width;
the shutter control unit includes: a bias control module and an elongated electroactive polymer;
the bias control module is connected with the first end and the second end of the electroactive polymer and is used for loading a voltage value set according to one numerical value in the commodity anti-counterfeiting code to two ends of the electroactive polymer;
the first end of the electroactive polymer is abutted against the shielding plate, and the second end of the electroactive polymer is fixedly connected with the cavity, so that when the electroactive polymer changes the length according to the voltage output by the bias control module, the movement of the shielding plate is controlled.
2. The anti-counterfeiting information generating unit according to claim 1, wherein one end of the shielding plate is hinged in the cavity so that the projection generated in the light-transmitting area when the shielding plate rotates around the hinge changes the width of the emergent parallel light beam;
the electroactive polymer is positioned in a direction parallel to the parallel light beam.
3. The anti-counterfeiting information generating unit according to claim 2, wherein the shielding plate control unit further comprises:
the first storage module is used for outputting the voltage value set by the commodity anti-counterfeiting code to the bias control module.
4. The anti-counterfeiting information generating unit according to claim 3, wherein the first storage module is further configured to: when a preset condition is triggered, the voltage value is cleared and a new voltage value is output.
5. The anti-counterfeiting information generating unit according to claim 2, wherein when the voltage value is lower than a preset threshold value, the projection generated by the shielding plate on the light-transmitting region completely covers the light-transmitting region.
6. An anti-counterfeiting information generating device, comprising: an array of a plurality of anti-counterfeiting information generating units according to any one of claims 1 to 5 connected in series;
the voltage value corresponding to the bias voltage control module in each anti-counterfeiting information generation unit in the array corresponds to each numerical value in the commodity anti-counterfeiting code.
7. An anti-counterfeiting information reading apparatus, comprising:
a signal receiving module for collecting an image of the parallel light beam emitted from the anti-counterfeiting information generating unit according to any one of claims 1 to 5;
the signal processing module is used for determining the width of the parallel light beam in the image of the parallel light beam according to a preset image processing algorithm, comparing the width of the parallel light beam with preset parallel light beam calibration data and determining the numerical value of the commodity anti-counterfeiting code corresponding to the parallel light beam calibration data with the same width;
and the output module is used for displaying or sending the numerical value of the commodity anti-counterfeiting code.
8. The apparatus for reading security information according to claim 7, further comprising:
and the second storage module is used for storing the image processing algorithm, the parallel light beam calibration data and the numerical value of the commodity anti-counterfeiting code corresponding to the parallel light beam calibration data.
9. A security system comprising the security information generating device according to claim 6 and the security information reading device according to claim 7 or 8.
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| US10388098B2 (en) * | 2014-02-07 | 2019-08-20 | Korea Institute Of Machinery & Materials | Apparatus and method of processing anti-counterfeiting pattern, and apparatus and method of detecting anti-counterfeiting pattern |
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|---|---|
| CN113139630A (en) | 2021-07-20 |
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