CN110458271A - Production method, equipment, verification method, equipment and the processing system of anti-false sign - Google Patents
Production method, equipment, verification method, equipment and the processing system of anti-false sign Download PDFInfo
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- CN110458271A CN110458271A CN201910705835.XA CN201910705835A CN110458271A CN 110458271 A CN110458271 A CN 110458271A CN 201910705835 A CN201910705835 A CN 201910705835A CN 110458271 A CN110458271 A CN 110458271A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/08—Devices involving relative movement between laser beam and workpiece
- B23K26/082—Scanning systems, i.e. devices involving movement of the laser beam relative to the laser head
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/36—Removing material
- B23K26/362—Laser etching
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/70—Auxiliary operations or equipment
- B23K26/702—Auxiliary equipment
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F18/00—Pattern recognition
- G06F18/20—Analysing
- G06F18/22—Matching criteria, e.g. proximity measures
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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
- G06K19/06046—Constructional details
- G06K19/06121—Constructional details the marking having been punched or cut out, e.g. a barcode machined in a metal work-piece
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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
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Abstract
The present invention provides a kind of production method of anti-false sign, equipment, verification method, equipment and processing systems, the production method, it include: control laser irradiation in target item, to form the molten tumor and/or molten hole that are used for as anti-false sign on the target item；It obtains and stores reference picture of the image in the molten tumor and/or molten hole as the verifying true and false at database service end.Since molten tumor and molten hole can have the advantages that be difficult to reappear as anti-false sign, the present invention can effectively improve anti-counterfeiting performance.
Description
Technical field
The present invention relates to field of anti-counterfeit technology more particularly to a kind of production method of anti-false sign, equipment, verification method,
Equipment and processing system.
Background technique
Laser marking technology is one of maximum application field of laser processing.Laser marking is swashing using high-energy density
Light carries out local irradiation to workpiece, vaporizes skin-material or the chemical reaction of color change occurs, to leave permanent mark
A kind of marking method of note.Laser marking can get various texts, symbol and pattern etc..
However, stranger is easy to reappear the mark got in the case where learning text, symbol and pattern, prevent
Pseudo- is ineffective.
Summary of the invention
The present invention provides production method, equipment, verification method, equipment and the processing system of a kind of anti-false sign, to solve
Anti-fake ineffective problem.
According to the first aspect of the invention, a kind of production method of anti-false sign is provided, comprising:
Laser irradiation is controlled in target item, to be formed on the target item for the molten tumor as anti-false sign
The molten hole and/or；
Obtain and database service end store the image in the molten tumor and/or molten hole as verify the true and false with reference to figure
Picture.
Optionally, control laser irradiation is used for using being formed on the target item as anti-false sign in target item
Molten tumor and/or molten hole, comprising:
Control target described in contour scanning of the light spot focus of the laser along preset one or more closed figures
Article, to form the corresponding molten tumor of each closed figure or molten hole.
Optionally, when the quantity of the closed figure is multiple, molten tumor corresponding to wherein at least two closed figure and/
Or arrangement position, arrangement mode and the size in molten hole are determined according to the texture and/or pattern on the target item surface.
Optionally, when the quantity of the closed figure is multiple, molten tumor corresponding to wherein at least two closed figure and/
Or molten hole is arranged in preset fixed area.
Optionally, control laser irradiation is used for using being formed on the target item as anti-false sign in target item
Molten tumor and/or molten hole, further includes:
When the target item described in the contour scanning along the closed figure, one of any work of the laser is controlled
Parameter occurs to change at random at any time.
Optionally, it obtains and stores the image in the molten tumor and/or molten hole as the verifying true and false at database service end
Before reference picture, further includes:
In the surface stamp of the target item, formation sequence information portion, the sequence information portion is for recording the mesh
Mark the sequence information of article, the pixel with the sequence information portion in the reference picture.
According to the second aspect of the invention, a kind of making apparatus of anti-false sign, including laser, Image Acquisition are provided
Component and database service end；The database service end is directly or indirectly connect with described image acquisition component；
The laser is used to for laser irradiation being used for be formed on the target item as anti-fake in target item
The molten tumor of mark and/or molten hole；
Described image acquisition component be used to acquire the image in the molten tumor and/or molten hole as verify the true and false with reference to figure
Picture, and feed back to the database service end and stored.
Optionally, the making apparatus of the anti-false sign further includes movement driving structure；
The movement driving structure is used to that the laser or the target item to be driven to move, so that the laser
Target item described in contour scanning of the light spot focus along preset one or more closed figures, to form each closed figure
Corresponding molten tumor or molten hole.
Optionally, when the quantity of the closed figure is multiple, molten tumor corresponding to wherein at least two closed figure and/
Or arrangement position, arrangement mode and the size in molten hole are determined according to the texture and/or pattern on the target item surface.
Optionally, when the quantity of the closed figure is multiple, molten tumor corresponding to wherein at least two closed figure and/
Or molten hole is arranged in preset fixed area.
Optionally, when the laser is also used to the target item described in the contour scanning along the closed figure, control
Random variation occurs at any time for one of any running parameter for making the laser.
Optionally, the laser is also used to the surface stamp in the target item, formation sequence information portion, the sequence
Column information portion is used to record the sequence information of the target item, the picture with the sequence information portion in the reference picture
Element.
According to the third aspect of the invention we, provide a kind of verification method of anti-false sign, for first aspect and its
The anti-false sign of the production method production for the anti-false sign that optinal plan is related to is verified, comprising:
Obtain the present image of product to be verified；
Compare the anti-counterfeiting label in anti-false sign in present image reference picture corresponding with the product to be verified
Will verifies the true and false of the product to be verified.
Optionally, the present image of the product to be verified is verifying terminal according to the sequence recorded on the product to be verified
The position of column information is shot after positioning to the anti-false sign on the product to be verified.
Optionally, it calculates separately and is melted in tumor or molten hole in the middle part and present image that melt tumor or molten hole in reference picture
Between melt in middle part similarity between portion and reference picture and melt tumor or molten hole in the skirt and present image of tumor or molten hole
Skirt similarity between skirt；
According to middle part similarity, skirt similarity, corresponding first weight of middle part similarity and skirt similarity
Corresponding second weight calculates similarity statistical value；Wherein the first weight is greater than the second weight；
If the similarity statistical value is greater than similarity threshold, it is determined that corresponding molten tumor or molten hole are similar；
When anti-false sign only has a molten tumor or molten hole, and anti-false sign in the reference picture in the present image
Also when only there is a molten tumor or molten hole, if corresponding molten tumor or molten hole are similar, it is determined that the product to be verified is true；
When anti-false sign has multiple molten tumors and/or molten hole, and anti-counterfeiting label in the reference picture in the present image
When will also has multiple molten tumors and/or molten hole, if each molten tumor and/or molten hole are opposite between the reference picture and the present image
It answers, and each pair of corresponding molten tumor and/or molten hole is similar or similar molten tumor and/or the quantity in molten hole are greater than threshold value, it is determined that
The product to be verified is true.
According to the fourth aspect of the invention, a kind of verifying equipment of anti-false sign, including processor and memory are provided,
The memory is used for store code and related data；
The processor, for executing the code in the memory to realize that the third aspect and its optinal plan are related to
Anti-false sign verification method.
According to the fifth aspect of the invention, a kind of processing system of anti-false sign is provided, comprising: second aspect and its can
The verifying for the anti-false sign that the making apparatus and fourth aspect and its optinal plan for the anti-false sign for selecting scheme to be related to are related to is set
It is standby.
Production method, equipment, verification method, equipment and the processing system of anti-false sign provided by the invention, by object
Product surface forms molten tumor and/or molten hole, this can be melted to tumor and/or molten hole as anti-false sign, in turn, record has the anti-false sign
Reference picture be used as verifying the true and false foundation.
Wherein, it is influenced during the morphogenesis due to melting tumor and molten hole by a variety of uncontrollable factors, shape after molding
Looks are difficult to be reappeared, meanwhile, even with identical manufacture craft and its technological parameter, generated pattern is also not necessarily
Be it is identical, with certain uncertainty, it is seen then that can have as anti-false sign due to melting tumor and molten hole and be difficult to reappear
Advantage can effectively improve anti-counterfeiting performance.
Meanwhile molten tumor and molten hole are usually can also be had the advantages that compare convenient for verifying by macroscopic size
For, LSP (specifically: Laser Shocking Peening, Chinese can claim reiforcing laser impact technology, laser can also be claimed to spray
Ball technology) etc. the pattern dimension that types it out of means it is smaller, even by pertinent instruments, also compare and be difficult to verify.
It improves anti-counterfeiting performance as it can be seen that the present invention can combine and is convenient for two aspects of verifying.
In addition, molten tumor is to need to avoid what is generated to show by the control of technique with molten hole in the inertia thinking of this field
As, and present invention overcomes in this inertia thinking to the technology prejudice of molten tumor and molten hole, not only do not avoid the production of the phenomenon
It is raw, on the contrary, make its molding by the generation for controlling molten tumor and molten hole, so as to as anti-false sign, so, it is any it is present
The production of some anti-false signs, verification method can not enlighten to obtain the solution of the present invention.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention without any creative labor, may be used also for those of ordinary skill in the art
To obtain other drawings based on these drawings.
Fig. 1 is the flow diagram one of the production method of anti-false sign in one embodiment of the invention；
Fig. 2 is the flow diagram two of the production method of anti-false sign in one embodiment of the invention；
Fig. 3 is the schematic diagram one of hot spot and scanning track in one embodiment of the invention；
Fig. 4 is the schematic diagram that tumor is individually melted in one embodiment of the invention；
Fig. 5 is the schematic diagram that hole is individually melted in one embodiment of the invention；
Fig. 6 is the schematic diagram two of hot spot and scanning track in one embodiment of the invention；
Fig. 7 is the schematic diagram three of hot spot and scanning track in one embodiment of the invention；
Fig. 8 is the schematic diagram four of hot spot and scanning track in one embodiment of the invention；
Fig. 9 is the distribution schematic diagram one in multiple molten tumors and/or molten hole in one embodiment of the invention；
Figure 10 is the distribution schematic diagram two in multiple molten tumors and/or molten hole in one embodiment of the invention；
Figure 11 is the distribution schematic diagram three in multiple molten tumors and/or molten hole in one embodiment of the invention；
Figure 12 is the distribution schematic diagram four in multiple molten tumors and/or molten hole in one embodiment of the invention；
Figure 13 is the organigram of the making apparatus of anti-false sign in one embodiment of the invention；
Figure 14 is the flow diagram of the verification method of anti-false sign in one embodiment of the invention；
Figure 15 is the flow diagram one of step S52 in one embodiment of the invention；
Figure 16 is the flow diagram two of step S52 in one embodiment of the invention；
Figure 17 is the organigram of the verifying equipment of anti-false sign in one embodiment of the invention；
Figure 18 is the organigram of the processing system of anti-false sign in one embodiment of the invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Description and claims of this specification and term " first ", " second ", " third " " in above-mentioned attached drawing
The (if present)s such as four " are to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should manage
The data that solution uses in this way are interchangeable under appropriate circumstances, so as to the embodiment of the present invention described herein can in addition to
Here the sequence other than those of diagram or description is implemented.In addition, term " includes " and " having " and their any deformation,
Be intended to cover it is non-exclusive include, for example, containing the process, method of a series of steps or units, system, product or setting
It is standby those of to be not necessarily limited to be clearly listed step or unit, but may include be not clearly listed or for these mistakes
The intrinsic other step or units of journey, method, product or equipment.
Technical solution of the present invention is described in detail with specifically embodiment below.These specific implementations below
Example can be combined with each other, and the same or similar concept or process may be repeated no more in some embodiments.
Fig. 1 is the flow diagram one of the production method of anti-false sign in one embodiment of the invention.
The production method can be applied to be capable of the equipment that the acquisition of irradiation and image to laser is controlled, such as
It can be applied to the control equipment of a connecting laser and image acquisition component.
Referring to FIG. 1, the production method of anti-false sign, comprising:
S11: control laser irradiation is in target item, formed on the target item for melting as anti-false sign
Tumor and/or molten hole.
Molten tumor therein and molten hole, it will be appreciated that are as follows:
To be welded as analogy, metal object causes metal solder joints localized hyperthermia to melt in the welding process, by electric current, liquid
When metal freezing, under Gravitative Loads metal trickle to be formed as small pimple object.It is corresponding, utilizing laser irradiation material
During material, material can be melted by localized hyperthermia, the part is made to become fluent material, liquid by laser chronic exposure material
When body material solidification, the object of similar overlap also will form, in turn, if can be regarded as this which form poroid structure
Hole is melted involved in embodiment, if not formed cavernous structure, can be regarded as melting tumor involved in the present embodiment.
It during the generation in molten tumor and molten hole, after material is melted, can flow, or even sputter, and then cooling
As solid.Influence factor is complicated in the process, thus as anti-false sign, it is unique, and process is difficult
With reproduction.
In each influence factor, when the interaction process of laser and material specifically can be with power density, the effect of laser
Between, the wavelength of laser it is associated, while can also be with the density of material, fusing point, phase transition temperature, the wavelength of laser, material surface pair
Absorptivity, thermal conductivity of the wavelength laser etc. are associated, due to the complexity of these factors, so being swashed from microcosmic every time
Light process is all difficult to be reappeared.
In each influence factor, the influence of defocusing amount welding quality is very big.Laser welding usually requires certain defocus
Amount is easy evaporation pore-forming because the power density of spot center is excessively high at laser spot.It leaves in each plane of laser spot,
Power density distribution is relatively uniform.
And the present embodiment and its optinal plan can be adjusted to above section or all, with ensure can generate molten tumor or
Required technological parameter can be obtained by limited trials or theoretical calculation in molten hole.Meanwhile even by artificial experience into
Any adjustment of row can be used as an embodiment of the present embodiment as long as producing molten tumor or molten hole, in other words, each parameter
It can also be not necessarily priori.
As it can be seen that being formed since the pattern for melting tumor and molten hole is influenced with production forming process by a variety of uncontrollable factors
Pattern afterwards is difficult to be reappeared, even if it is also difficult to determine the design parameter of manufacture craft using reverse engineering, meanwhile, even if adopting
With identical manufacture craft and its technological parameter, process detail may also be different.Further, even if ownership workmanship
Skill, technological parameter and process detail are all identical, and generated pattern is also not necessarily the same, so, have centainly not
Certainty, pattern are difficult to reappear, simultaneously as the anti-false sign generated has subtle three-dimensional feature and surface smoothness etc. attached
Belong to feature, can also further increase the difficulty of reproduction.
As it can be seen that can have the advantages that be difficult to reappear due to melting tumor and molten hole as anti-false sign, antifalsification can be effectively improved
Energy.
In the laser processing technology of general technology, for the surface quality realized, the selection target of technological parameter is to subtract
The generation of small molten tumor and molten hole.And in our method, the setting of technological parameter is so that molten tumor is visually observed with molten Kong Weike
Size, can also have the advantages that convenient for verifying, in contrast, the pattern dimension that the means such as LSP type it out is smaller, even
By pertinent instruments, also compares and be difficult to verify.LSP therein specifically: Laser Shocking Peening, Chinese can claim to swash
Light shock peening technology, can also claim Laser Peening Technology
In addition, in order to guarantee quality, need to remove uncertainty as far as possible in the manufacturing process of general industry product.Such as
During Laser Jet, the target for adjusting technological parameter is to make svelteness, does not have any flaw under the vision of people.Cause
This, using small laser facula (thin lines, minimum feature is up to 0.01mm), the works such as high pulse frequencies (short delay time)
Skill parameter has minimized the influence of fuel factor and other effects.
And method involved in the present embodiment, then exactly with the above used thinking having on the contrary, making full use of or even amplifying this
The uncertainty that need to be eliminated a bit, and then this uncertainty is utilized, ensure the not reproducibility of anti-false sign.
As it can be seen that molten tumor is to need to avoid what is generated to show by the control of technique with molten hole in the inertia thinking of this field
As, and the present embodiment and its optinal plan then overcome in this inertia thinking to the technology prejudice of molten tumor and molten hole, not only not
The generation of the phenomenon is avoided, on the contrary, make its molding by the generation for controlling molten tumor and molten hole, so as to as anti-false sign,
So any production of existing anti-false sign, verification method now can not enlighten to obtain this programme.
In addition, it is also pointed out that, although molten tumor and molten hole are the phenomenon that need to avoiding in the inertia thinking of this field, this is existing
As being already present in this field, so, how to be brought it about by the setting of parameter, is those skilled in the art at this
Under the guide of embodiment, it can be obtained in conjunction with common knowledge and conventional techniques.In a kind of citing, if this field can pass through
The setting of parameter avoids the phenomenon from occurring, and by setting parameter to the parameter of reverse logic therewith, that is, can determine that generation is molten
Tumor and/or the parameter in molten hole.So this will not be caused even if the present embodiment does not disclose the value range of relevant parameter specifically
The case where field technical staff can not implement, it can meet sufficiently disclosed require.
Laser therein can be the device sending that can arbitrarily issue laser, which can be described as laser.
In one of embodiment, the power density of laser is higher than 105W/cm2When, material can be made to occur melting or gas
Change.Power density order of magnitude energy of the output laser of the optical fiber laser of middle low-power used in laser marking machine in focal point
Reach 105W/cm2More than, it can satisfy power density requirements, so that same laser marking machine can complete mark and generation
The function of anti-false sign.So laser involved in the present embodiment can use the optical fiber laser of laser marking machine.It can borrow
The parameter setting for laser boring, laser cutting or the laser welding of reflecting, partially uses these parameters, implements the production of anti-false sign.
In practice, molten tumor or molten hole can more efficiently be generated using more powerful laser.
Fig. 2 is the flow diagram two of the production method of anti-false sign in one embodiment of the invention.
Referring to FIG. 2, step S11 includes: in one of embodiment
S111: it controls described in contour scanning of the light spot focus of the laser along preset one or more closed figures
Target item, to form the corresponding molten tumor of each closed figure or molten hole.
During forming molten tumor and molten hole, fuel factor need to be sufficiently generated, so, in order to make full use of heat, can lead to
It crosses and forms molten tumor or molten hole along the reciprocal scanning motion of contour line referred to above.
The above contour line can be regarded as the scanning track of light spot focus, and laser is by the track set relative to target item
When movement, in contour line and material is constantly melted and is gasified by near zone, laser, generates molten hole or molten tumor.Due to molten
Hole is generated in target item surface, concrete example, and molten hole can be blind hole.
In actual process, it can determine first with theoretical calculation or the method for limited trials and generate molten hole or molten tumor
Technological parameter, technological parameter can be such as: closed figure, laser power, scanning speed, pulse frequency, pulse width etc..According to this
A little technological parameters can correspond to the size or other patterns for determining molten hole or molten tumor.
In technical process:
By the adjustment of defocusing amount, the size of hot spot can be changed, consequently facilitating forming the anti-false sign of correspondingly-sized；Example
Such as: defocusing amount is higher, and the size of hot spot is bigger, to advantageously reduce power density；
By the adjustment of the pulse frequency of laser, the irradiation heat in the unit time can be changed；
By the adjustment of power density, the degree of fuel factor can be changed；Such as: power density is higher, the degree of fuel factor
Higher, i.e., fuel factor is more obvious；
By the adjustment of residence time or scanning speed, the degree of fuel factor also can be changed；Such as: scanning speed is slower,
Residence time is longer, and the degree of fuel factor is higher, i.e., fuel factor is more obvious；
By the adjustment of pulse width, the irradiation heat in the unit time can be changed；Such as pulse width is longer, when unit
Interior irradiation heat is big.
In one of embodiment, in the implementation process of step S111, it may also include that in the wheel along the closed figure
When profile scans the target item, random variation occurs at any time for one of any running parameter for controlling the laser.
In turn, by being superimposed a random fluctuation, it may make imitated, reproduction difficulty bigger.
Closed figure therein, it will be appreciated that for arbitrarily the figure for enclosing and being formed can be closed using contour line, specifically
It, can be by the movement of control laser come so that the light spot focus of laser can also pass through control along contour scanning in implementation process
Target item processed movement come so that the light spot focus of laser along contour scanning, meanwhile, this implementations also be not excluded for both together
Shi Yundong come so that laser light spot focus along contour scanning scheme.
Fig. 3 is the schematic diagram one of hot spot and scanning track in one embodiment of the invention；Fig. 4 is single in one embodiment of the invention
The schematic diagram of a molten tumor；Fig. 5 is the schematic diagram that hole is individually melted in one embodiment of the invention.
Fig. 3 to Fig. 5 is please referred to, the light spot focus of hot spot 21 therein can be swept along the contour line of circular closed figure 22
It retouches.In a kind of citing, the diameter of the circular closed figure 22 can be 0.03mm, and the diameter of hot spot 21 can be 0.108mm,
The scanning speed of laser can be v=3mm/s, and the pulse frequency of laser can be 23kHz.In turn, by changing the defeated of laser
Power can be used for generating molten hole still molten tumor out.
Referring to FIG. 4, when using the laser irradiation of low-power, since laser power is lower, without molten hole, still
Molten tumor is generated, diameter is smaller, can such as 0.1mm.
Referring to FIG. 5, using higher-wattage laser irradiation when, produced a circular hole and melted hole, which may include
Centre bore and skirt, diameter is also bigger, can such as 0.15mm.
As it can be seen that can be to melt tumor or molten hole according to current desired formation in an embodiment of the present embodiment,
Determine different laser powers.In other words, laser power used by the laser can influence finally formed to be to melt tumor also
It is molten hole, it may be assumed that laser power is to influence to generate molten one of tumor or the factor in molten hole.
Fig. 6 is the schematic diagram two of hot spot and scanning track in one embodiment of the invention；Fig. 7 is light in one embodiment of the invention
The schematic diagram three of spot and scanning track；Fig. 8 is the schematic diagram four of hot spot and scanning track in one embodiment of the invention.
The closed figure that Fig. 3 to Fig. 5 illustrates is circle, and in Fig. 6 into Fig. 8 illustrated embodiment, which can also
For hexagon, polygon, ellipse etc. any regular or irregular figure.
Wherein, the molten tumor of generation or molten hole are related with the envelope of closed figure, but the size of range also stimulated light function
The influence of rate, scanning speed, defocus rate etc..
Above description can be regarded as the forming process for being directed to single molten tumor or molten hole, can be applied to form multiple molten tumors
Or the scene in molten hole, it can also be applied to the scene for only needing to be formed a molten tumor or molten hole.
Fig. 9 is the distribution schematic diagram one in multiple molten tumors and/or molten hole in one embodiment of the invention；Figure 10 is that the present invention one is real
Apply the distribution schematic diagram two in multiple molten tumors and/or molten hole in example；Figure 11 is multiple molten tumors and/or molten hole in one embodiment of the invention
Distribution schematic diagram three；Figure 12 is the distribution schematic diagram four in multiple molten tumors and/or molten hole in one embodiment of the invention.
Referring to FIG. 9, molten hole 3 may include interstitial hole 31 and skirt 32 for melting hole 3 shown in Fig. 9, skirt 32 is surround
Similar therewith positioned at the outside of interstitial hole 31, molten tumor may also comprise intermediate tumor and skirt.The interstitial hole 31 can unite with intermediate tumor
One is characterized as middle part, in order to relevant description hereinafter, so, no matter molten tumor and molten hole, it may each comprise middle part and surround
Skirt on the outside of middle part.
Fig. 9 to Figure 10 is please referred to, in one of embodiment, when the quantity of the closed figure is multiple, wherein extremely
Molten tumor corresponding to few two closed figures and/or molten hole are arranged in preset fixed area.
What the fixed area can have any shape, such as can as shown in Figures 9 and 10 be in rectangle, it can also be in circle
The regular figures such as shape, ellipse, polygon or irregular figure, meanwhile, the fixed area is required when being interpreted as calculating, controlling
Determining fixed area can characterize it on the surface of target object, can not also characterize to it.
In one of which citing, fixed area can also be in pattern, the line itself not having in arbitrary target item
Road, in turn, fixed area can be in readily identified pattern, lines, or have and can play indicative function, warning function or other are special
Pattern, the lines being set for.
Please refer to Figure 12, in one of embodiment, when the quantity of the closed figure is multiple, wherein at least two
Arrangement position, arrangement mode and the size of molten tumor and/or molten hole corresponding to closed figure are according to the target item surface
Texture and/or pattern determine.It can be regarded as: enable to molten tumor and/or molten pore size distribution in the texture and/or pattern institute
In corresponding region, it in this region, can be equally distributed, be also possible to uneven distribution.
Each molten tumor and/or molten hole, shape, size etc. in the same fixed area, texture or pattern may each be
It is similar, it is also possible to entirely different.It can be specifically arranged according to fixed area, texture, pattern.Meanwhile according to difference
The molten tumor of shape, molten hole can be convenient for further such that anti-false sign is more changeable, to be less prone to imitate reproduction.
The present embodiment is also not excluded for the combination of above each optional embodiment.Meanwhile respective fixed area, texture, pattern
Deng quantity can be one, can also be not limited to one, and use multiple.Its same table that can be distributed in target item
Face also can be distributed in different surfaces.It, can be between molten tumor and molten hole between molten hole between adjacent molten tumor, adjacent, adjacent
It is connected to connect, it can also be mutually indepedent and unconnected.
It may include: S12 after step S11: obtaining and store the molten tumor and/or molten hole at database service end
Reference picture of the image as the verifying true and false.
Wherein, which it is collected to can be image acquisition component, can be and forms molten tumor in target item
And/or the image of the part in molten hole, it is also possible to the image of target item entirety.
In one of embodiment, before step S12, can also include:
S13: in the surface stamp of the target item, formation sequence information portion.
The sequence information portion is used to record the sequence information of the target item, can be for example with text, number, word
Mother, symbol etc. are at least one any to be characterized, meanwhile, the present embodiment be also not excluded for using two dimensional code, bar code or other figures,
Pattern, lines etc. characterize the scheme of sequence information.
It is corresponding, there can also be the pixel in the sequence information portion in the reference picture, in order to verify terminal to anti-
Pseudo- mark is positioned.
In addition, the process of above step S13 and step S11 can with as shown in Fig. 2, can also first implementation steps S13 it is real again
Apply step S11.The present embodiment is also not excluded for the scheme using various lasers while implementation steps S13 and step S11.Meanwhile
Sequence information portion and molten tumor and/or molten hole can be set to same surface, can also be respectively arranged on different surfaces.
Figure 13 is the organigram of the making apparatus of anti-false sign in one embodiment of the invention.
Please refer to Figure 13, the making apparatus 4 of anti-false sign, comprising: laser 41, image acquisition component 43 and database take
Business end 42；The database service end 42 is directly or indirectly connect with described image acquisition component 43.The connection can be regarded as leading to
News connection, as long as realizing communication, does not depart from the description.
The laser 41 is used for laser irradiation in target item 45, to be formed on the target item 45 for making
Molten tumor and/or molten hole for anti-false sign.
Described image acquisition component 43 be used to acquire the image in the molten tumor and/or molten hole as verify the true and false with reference to figure
Picture, and feed back to the database service end 42 and stored.
In one of embodiment, laser 41 can under the control of control equipment irradiation laser, implement it is above and
Related process hereinafter, image acquisition component 43 can also acquire image under the control of control equipment, implement above and hereinafter
Related process.Meanwhile the reference picture that image acquisition component 43 acquires can be transmitted to control equipment, in turn, reference picture
It can be controlled equipment and be sent to database service end 42.
Optionally, the making apparatus of the anti-false sign may also include movement driving structure (not shown).
The movement driving structure is for driving the laser 41 or the target item 45 to move, so that described swash
Target item described in contour scanning of the light spot focus of light along preset one or more closed figures, to form each closing
The corresponding molten tumor of figure or molten hole.
In one of embodiment, movement driving structure can be connect with control equipment, in turn, move driving structure
It can implement above and related process hereinafter under the control of control equipment.
Optionally, when the quantity of the closed figure is multiple, molten tumor corresponding to wherein at least two closed figure and/
Or arrangement position, arrangement mode and the size in molten hole are determined according to the texture and/or pattern on the target item surface.
Optionally, when the quantity of the closed figure is multiple, molten tumor corresponding to wherein at least two closed figure and/
Or molten hole is arranged in preset fixed area.
Optionally, when the laser 41 is also used to the target item described in the contour scanning along the closed figure,
Random variation occurs at any time for one of any running parameter for controlling the laser.
Optionally, the laser 41 is also used to the surface stamp in the target item 45, formation sequence information portion 44,
The sequence information portion 44 is used to record the sequence information of the target item 45, has sequence letter in the reference picture
The pixel in breath portion 44.
Technical term, technological means and technical effect referred to above can refer to method embodiment above
Description understanding, so, for the same or similar content, it is not repeated herein.
Database service end 42 therein, can for arbitrarily can by wired or wireless way, directly or indirectly with figure
It may be, for example, local server, local terminal, remote server, distance terminal, cloud as the server-side that acquisition component 43 communicates
Server etc..Meanwhile database service end 42 can have data storage function, can also have to the data stored into
The function of row management.
Image acquisition component 43 therein can be that can arbitrarily acquire the component of image, such as can be camera, can also
Think any terminal, equipment, such as mobile phone, tablet computer, computer, camera etc. with camera.
Figure 14 is the flow diagram of the verification method of anti-false sign in one embodiment of the invention.
Verification method involved in the present embodiment can be applied to verifying terminal, which can be for Image Acquisition
Any terminal of function and data processing function, such as can be mobile phone, tablet computer, computer, camera etc..
Verification method involved in the present embodiment can also be applied to database service end referred to above.
Verification method involved in the present embodiment applies also for can be with database service end and verifying terminal called
Data processing end.It can be local data processing computer, or the data processing server of distal end can also be
The data processing computer of distal end.
Please refer to Figure 14, the verification method of anti-false sign, the anti-counterfeiting label for being related to above scheme and its optinal plan
The anti-false sign of the production method production of will is verified, comprising:
S51: the present image of product to be verified is obtained；
S52: it compares anti-in anti-false sign in present image reference picture corresponding with the product to be verified
Puppet mark, verifies the true and false of the product to be verified.
Wherein, if embodiment of above is applied to verifying terminal, i.e., implement the processing of verifying using verifying terminal, then obtain
It takes the process of present image to can be for example verifying terminal and directly shoot to obtain.
If embodiment of above is applied to database service end or data processing end, that is, utilize database service end or data
The processing of verifying is implemented in processing end, then the process for obtaining present image, which can be for example, receives the current figure that takes of verifying terminal
Picture.
It, can be by magnifying glass when verifying terminal shoots present image in specific implementation process.For example, magnifying glass is straight
Connect be placed on verifying terminal camera shot.By magnifying glass, can be more convenient for clearly showing the details of molten tumor, molten hole,
Convenient for improving the accuracy rate of verifying.
In one of embodiment, the present image of the product to be verified is verifying terminal according to the production to be verified
The position for the sequence information recorded on product is shot after positioning to the anti-false sign on the product to be verified.
In one of embodiment, present image and reference picture directly can be compared using housebroken neural network.
In another embodiment, the pixel characteristic of molten tumor, molten hole also can extract, and then current figure is compared according to pixel characteristic
Picture and reference picture.
Wherein, molten hole, molten tumor have lines of outline, and a molten hole or molten tumor can be connected with each other as a point
Molten hole or molten tumor can be as lines.For the thickness of these lines in tens microns, length and shape can be according to need
Change.Therefore image comparison is mainly judged according to the lines of outline for melting tumor and/or molten hole, meanwhile, also in combination with other
Supplemental characteristic is compared.For example subtle three-dimensional feature of the supplemental characteristic and surface smoothness etc..
Can for example be calculated when being compared between lines relative elements it is wide Euclidean distance determine similarity, and then sentence
Whether the molten hole, molten tumor and the molten hole in reference picture, molten tumor in disconnected present image are similar.
Figure 15 is the flow diagram one of step S52 in one embodiment of the invention；Figure 16 is walked in one embodiment of the invention
The flow diagram two of rapid S52.
Figure 15 and Figure 16 are please referred to, since molten tumor or molten hole may include that related middle part and skirt, skirt are above
It is generated due to fuel factor.When image comparison can main contrast's middle part location and shape.Using skirt as supplemental characteristic.
In turn, Figure 15 and Figure 16 are please referred to, step S52 may particularly include:
S521: the centre that tumor or molten hole are melted in the middle part and present image that melt tumor or molten hole in reference picture is calculated separately
The skirt that tumor or molten hole are melted in the skirt and present image of tumor or molten hole is melted in middle part similarity and reference picture between portion
Skirt similarity between side；
S522: according to middle part similarity, skirt similarity, corresponding first weight of middle part similarity and skirt
Corresponding second weight of similarity calculates similarity statistical value；Wherein the first weight is greater than the second weight；
S523: if the similarity statistical value is greater than similarity threshold, it is determined that corresponding molten tumor or molten hole are similar；
S524: prevent when anti-false sign only has a molten tumor or molten hole in the present image, and in the reference picture
When pseudo- mark also only has a molten tumor or molten hole, if corresponding molten tumor or molten hole are similar, it is determined that the product to be verified is
Very；
Conversely, then can determine that the product to be verified is false；
S525: when anti-false sign is anti-with multiple molten tumors and/or molten hole, and in the reference picture in the present image
When pseudo- mark also has multiple molten tumors and/or molten hole, if each molten tumor and/or molten hole between the reference picture and the present image
It is corresponding, and each pair of corresponding molten tumor and/or molten hole is similar or similar molten tumor and/or the quantity in molten hole are greater than threshold value, then
Determine that the product to be verified is true；
Conversely, then can determine that the product to be verified is false.
Wherein, each molten tumor and/or molten hole are corresponding between the reference picture and the present image, may be, for example, each molten tumor
Or quantity, the distribution mode in molten hole are identical.
In one of embodiment, before step S52, it may also include and present image is handled, so that it is more
Convenient for comparing.Certain citing is carried out to the processing below, it is considered that the treatment process of the present embodiment can be not limited to following citing:
Since ambient light will cause influence really.So in order to remove the influence, a kind of optinal plan is removable current
High bright part in image is compared again, can also compensate processing to it, can also be when shooting in alternative dispensing means
Anti-false sign is covered using shell, then shoots present image.Since visual angle difference will lead to figure deformation.So in order to remove
The deformation, a kind of optinal plan compare again after being corrected with the method for slant correction.Due to melting the practical ruler in hole or molten tumor
Very little very little.So can be extended to image.
Figure 17 is the organigram of the verifying equipment of anti-false sign in one embodiment of the invention.
The verifying equipment can be verifying terminal, or database service end can also be data processing service end.
Figure 17 is please referred to, equipment 60 is verified, comprising:
Processor 61；And
Memory 62, for storing the executable instruction of the processor；
Wherein, the processor 61 is configured to execute authentication referred to above via the executable instruction is executed
Method.
Processor 61 can be communicated by bus 63 and memory 62.
The present embodiment additionally provides a kind of computer readable storage medium, is stored thereon with computer program, the program quilt
Processor realizes verification method referred to above when executing.
Figure 18 is the organigram of the processing system of anti-false sign in one embodiment of the invention.
Please refer to Figure 18, the processing system of anti-false sign, comprising: the production for the anti-false sign that the above optinal plan is related to is set
It is standby, and the verifying equipment of anti-false sign that the above optinal plan is related to.
Specifically, the processing system of anti-false sign may include above involved in laser 41, image acquisition component 43, number
According to library server-side 42 and verifying terminal 46.
Wherein, verifying terminal 46 can also pass through data processing service end 47 and 42 communication connection of database service end.
In turn, related verifying equipment can be verifying terminal 46 therein above, or data processing service
End 47, can also be database service end 42.
Technical term, technological means and technical effect referred to above can refer to associated description understanding above, therefore
And for the same or similar content, it is not repeated herein.
In conclusion the production method of anti-false sign provided in this embodiment, equipment, verification method, equipment and processing system
This can be melted tumor and/or molten hole as anti-false sign, in turn, recorded by system by forming molten tumor and/or molten hole in article surface
There is the reference picture of the anti-false sign to be used as the foundation of the verifying true and false.
Wherein, it is influenced during the morphogenesis due to melting tumor and molten hole by a variety of uncontrollable factors, shape after molding
Looks are difficult to be reappeared, meanwhile, even with identical manufacture craft and its technological parameter, generated pattern is also not necessarily
Be it is identical, with certain uncertainty, it is seen then that can have as anti-false sign due to melting tumor and molten hole and be difficult to reappear
Advantage can effectively improve anti-counterfeiting performance.
Meanwhile molten tumor and molten hole are usually can also be had the advantages that compare convenient for verifying by macroscopic size
For, the pattern dimension that the means such as LSP type it out is smaller, even by pertinent instruments, also compares and is difficult to verify.
It improves anti-counterfeiting performance as it can be seen that the present embodiment can combine and is convenient for two aspects of verifying.
In addition, molten tumor is to need to avoid what is generated to show by the control of technique with molten hole in the inertia thinking of this field
As, and present invention overcomes in this inertia thinking to the technology prejudice of molten tumor and molten hole, not only do not avoid the production of the phenomenon
It is raw, on the contrary, make its molding by the generation for controlling molten tumor and molten hole, so as to as anti-false sign, so, it is any it is present
The production of some anti-false signs, verification method can not enlighten to obtain the scheme of the present embodiment.
Those of ordinary skill in the art will appreciate that: realize that all or part of the steps of above-mentioned each method embodiment can lead to
The relevant hardware of program instruction is crossed to complete.Program above-mentioned can be stored in a computer readable storage medium.The journey
When being executed, execution includes the steps that above-mentioned each method embodiment to sequence；And storage medium above-mentioned include: ROM, RAM, magnetic disk or
The various media that can store program code such as person's CD.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (17)
1. a kind of production method of anti-false sign characterized by comprising
Laser irradiation is controlled in target item, using formed on the target item for as anti-false sign molten tumor and/or
Molten hole；
It obtains and stores reference picture of the image in the molten tumor and/or molten hole as the verifying true and false at database service end.
2. the production method of anti-false sign according to claim 1, which is characterized in that control laser irradiation is in object
Product, to form the molten tumor and/or molten hole that are used for as anti-false sign on the target item, comprising:
Target item described in contour scanning of the light spot focus of the laser along preset one or more closed figures is controlled,
To form the corresponding molten tumor of each closed figure or molten hole.
3. the production method of anti-false sign according to claim 2, which is characterized in that the quantity of the closed figure is more
When a, arrangement position, arrangement mode and the size of molten tumor and/or molten hole corresponding to wherein at least two closed figure are bases
What the texture and/or pattern on the target item surface determined.
4. the production method of anti-false sign according to claim 2, which is characterized in that the quantity of the closed figure is more
When a, molten tumor and/or molten hole corresponding to wherein at least two closed figure are arranged in preset fixed area.
5. according to the production method of the described in any item anti-false signs of claim 2 to 4, which is characterized in that control laser irradiation
In target item, to form the molten tumor and/or molten hole that are used for as anti-false sign on the target item, further includes:
When the target item described in the contour scanning along the closed figure, one of any running parameter of the laser is controlled
Random variation occurs at any time.
6. the production method of anti-false sign according to any one of claims 1 to 4, which is characterized in that obtain and in data
Library server-side stores before reference picture of the image in the molten tumor and/or molten hole as the verifying true and false, further includes:
In the surface stamp of the target item, formation sequence information portion, the sequence information portion is for recording the object
The sequence information of product, with the pixel in the sequence information portion in the reference picture.
7. a kind of making apparatus of anti-false sign, which is characterized in that including laser, image acquisition component and database service
End；The database service end is directly or indirectly connect with described image acquisition component；
The laser is used to for laser irradiation being used for be formed on the target item as anti-false sign in target item
Molten tumor and/or molten hole；
Described image acquisition component is used to acquire reference picture of the image in the molten tumor and/or molten hole as the verifying true and false, and
The database service end is fed back to be stored.
8. the making apparatus of anti-false sign according to claim 7, which is characterized in that further include movement driving structure；
The movement driving structure is for driving the laser or the target item to move, so that the hot spot of the laser
Target item described in contour scanning of the focus along preset one or more closed figures, it is corresponding to form each closed figure
Molten tumor or molten hole.
9. the making apparatus of anti-false sign according to claim 8, which is characterized in that the quantity of the closed figure is more
When a, arrangement position, arrangement mode and the size of molten tumor and/or molten hole corresponding to wherein at least two closed figure are bases
What the texture and/or pattern on the target item surface determined.
10. the making apparatus of anti-false sign according to claim 8, which is characterized in that the quantity of the closed figure is
When multiple, molten tumor and/or molten hole corresponding to wherein at least two closed figure are arranged in preset fixed area.
11. according to the making apparatus of the described in any item anti-false signs of claim 8 to 10, which is characterized in that the laser
When being also used to the target item described in the contour scanning along the closed figure, one of any work ginseng of the laser is controlled
Random variation occurs at any time for number.
12. according to the making apparatus of the described in any item anti-false signs of claim 7 to 10, which is characterized in that the laser
It is also used to the surface stamp in the target item, formation sequence information portion, the sequence information portion is for recording the target
The sequence information of article, with the pixel in the sequence information portion in the reference picture.
13. a kind of verification method of anti-false sign, which is characterized in that for anti-counterfeiting label as claimed in any one of claims 1 to 6
The anti-false sign of the production method production of will is verified, comprising:
Obtain the present image of product to be verified；
The anti-false sign in anti-false sign in present image reference picture corresponding with the product to be verified is compared, is tested
Demonstrate,prove the true and false of the product to be verified.
14. the verification method of anti-false sign according to claim 13, which is characterized in that the product to be verified it is current
Image is to verify terminal according to the position for the sequence information recorded on the product to be verified, to anti-on the product to be verified
What pseudo- mark was shot after being positioned.
15. the verification method of anti-false sign according to claim 13, which is characterized in that compare in the present image
Anti-false sign in anti-false sign reference picture corresponding with the product to be verified, verifies the true and false of the product to be verified,
Include:
It calculates separately and is melted between tumor or the middle part in molten hole in the middle part and present image that melt tumor or molten hole in reference picture
It melts in middle part similarity and reference picture and is melted between tumor or the skirt in molten hole in the skirt and present image of tumor or molten hole
Skirt similarity；
It is corresponding according to middle part similarity, skirt similarity, corresponding first weight of middle part similarity and skirt similarity
The second weight, calculate similarity statistical value；Wherein the first weight is greater than the second weight；
If the similarity statistical value is greater than similarity threshold, it is determined that corresponding molten tumor or molten hole are similar；
When anti-false sign only has a molten tumor or molten hole in the present image, and in the reference picture, anti-false sign is also only
With a molten tumor or when molten hole, if corresponding molten tumor or molten hole are similar, it is determined that the product to be verified is true；
When anti-false sign has multiple molten tumors and/or molten hole, and anti-false sign in the reference picture in the present image
With multiple molten tumors and/or when molten hole, if each molten tumor and/or molten hole are corresponding between the reference picture and the present image,
And each pair of corresponding molten tumor and/or molten hole is similar or similar molten tumor and/or the quantity in molten hole are greater than threshold value, it is determined that described
Product to be verified is true.
16. a kind of verifying equipment of anti-false sign, which is characterized in that including processor and memory,
The memory is used for store code and related data；
The processor, for executing the code in the memory to realize that claim 13 to 15 is described in any item anti-
The verification method of puppet mark.
17. a kind of processing system of anti-false sign characterized by comprising the described in any item anti-counterfeiting labels of claim 7 to 12
The verifying equipment of anti-false sign described in the making apparatus and claim 16 of will.
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| CN112700264A (en) * | 2020-11-28 | 2021-04-23 | 拍拍看(海南)人工智能有限公司 | Discrimination quality guarantee anti-counterfeiting method |
| CN113978152A (en) * | 2021-10-11 | 2022-01-28 | 南通真秦科技有限公司 | Method and system for manufacturing anti-counterfeiting mark and method and system for verifying anti-counterfeiting mark |
| WO2022110985A1 (en) * | 2020-11-28 | 2022-06-02 | 拍拍看(海南)人工智能有限公司 | Fidelity and anti-counterfeiting method for commodity insurance |
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