TWI802425B - Authenticity judgment application and authenticity judgment system - Google Patents

Abstract

An authenticity determination application and an authenticity determination system capable of easily authenticity determination. The authenticity determination application configuration of the present invention is as follows: extract shadow information from the captured image of the marking part stored in the user terminal, compare it with the shadow determination information pre-programmed into the application program, and then evaluate the matching. If it matches, Then the user terminal is controlled to determine that the marking part is real, and the marking part is laser engraved with information related to the target object including the preset invisible mark, and at least one piece of information about the size, depth and position of the invisible mark of the laser marking will be based on each There are different basic settings for each user. The shadow judgment information includes the reference shadow information and the position information of the invisible mark. The reference shadow information is based on the size and depth of the laser marking and the brightness of the image captured by the laser marking. The engraved processing information is correspondingly obtained, and the application program programs different shadow judgment information for each different user.

Description

Authenticity judgment application and authenticity judgment system

The present invention relates to an authenticity determination application program and an authenticity determination system, and more particularly to an authenticity determination application program and an authenticity determination system capable of easily performing authenticity determination by comparing images and shadow determination information, the images being An image taken of a marking component installed on a target object, the marking component is laser engraved with information related to the target object including the set invisible mark, and the shadow determination information includes processing information corresponding to the laser marking The base shadow information obtained.

Among the objects handled by the user, marking parts are sometimes used to distinguish them from other objects of the same type. For example, in order to distinguish unmanned aerial vehicles such as drones as industrial products from other drones, marking components similar to car license plates must be added.

Like this, the target objects that need to be distinguished by additional marking components are usually of high importance or high value, and are easy to become targets for forgery. Although the marking part is only used to distinguish the target object, if the marking part itself can be easily forged, it is difficult to identify the authenticity of the counterfeit target object installed with the counterfeit marking part.

Patent Document 1 discloses a method for displaying an electronic watermark pattern as follows, including: forming the electronic watermark pattern as any one of characters, graphics, symbols, patterns, or a combination of these symbols, and simultaneously generating the above-mentioned electronic watermark pattern as An image displayed as a pattern of an image, which is then traced or attached to a solid.

According to the invention described in Patent Document 1, by making the unique code of the product etc. into an electronic watermark pattern to make it difficult for a third party to read, by reading the electronic watermark pattern formed inside the text or background image, It is possible to read the unique code of the product, etc. However, since the electronic watermark pattern can be easily read with a magnifying glass or the like, there is a problem that it is difficult to prevent forgery.

Patent Document 2 discloses a marking member provided with an identification mark and an invisible mark. The identification mark is compared by rewriting by laser irradiation on the marking part and the display part which are formed as a background pattern by engraving by laser irradiation. The background pattern is engraved deeper, and the hidden mark is formed by engraving deeper than the background pattern at a location different from the identification mark.

According to the invention described in Patent Document 2, since the invisible mark is a meaningless mark at first glance, it is a mark that cannot be recognized as information by a third party, so it is difficult to forge, and a regular user can judge the marked part by confirming the invisible mark Is it legitimate. In addition, since the depth of laser marking can be changed in addition to the position of the invisible mark, information in the depth direction cannot be read even with a magnifying glass. Therefore, the marking member described in Patent Document 2 cannot be easily counterfeited.

However, in Patent Document 2, it is described that the image of the invisible mark is read by the lens of the electronic device, and the authenticity of the marking part is determined according to whether the read image matches the pattern of the electronic device, but it is not clear. Record what kind of information is used to make judgments and how to prevent forgery.

Therefore, it is desired to provide a structure that can easily perform authenticity determination and prevent forgery by using such an indicator member that is difficult to forge.

Patent Document 1: Japanese Patent Laid-Open No. 2009-118293

Patent Document 2: Japanese Patent No. 6755564

The present invention is made in view of the above-mentioned problems in the conventional authenticity judgment system, and an object of the present invention is to provide an authenticity judgment application program and an In the authenticity determination system, the image is an image taken of a marking component installed on a target object, and information related to the target object including a set invisible mark is laser engraved on the marking component, and the shadow determination The information includes reference shadow information obtained corresponding to laser marking processing information.

The authenticity judging application program of the present invention completed in order to achieve the above object is an application for judging the authenticity of the target object based on the marking components installed on the target object handled by the user. A program for extracting shadow information from the photographed image of the marking part stored in the image acquisition unit of the user terminal, comparing the shadow judgment information pre-programmed into the application program with the shadow information, and then evaluating Matching, if the evaluation result is judged to be a match, then control the authenticity determination part of the user terminal to determine that the marking part is a real marking part, and the marking part is laser engraved with the said Information related to the target object, at least one information of the size and depth of the laser marking and the position of the invisible mark will have different basic settings according to each user, and the shadow determination information includes reference shadow information and The position information of the invisible mark, the reference shadow information is based on the relationship between the size and depth of the laser marking and the brightness of the captured image of the laser marking, and is calculated correspondingly to the processing information of the laser marking Therefore, the application program programs different shadow determination information for each different user.

The authenticity judging system of the present invention completed in order to achieve the above object is a kind of authenticity judging system provided with an information providing server that provides information based on a marking member installed on a target object handled by the user. The application program for the authenticity of the target object, the information providing server includes: a processing information storage unit, the processing information storage unit stores processing information for each different user, and the processing information is used in the Laser engraving information related to the target object including the set invisible mark on the marking part; a shadow determination information generation part, the shadow determination information generation part is based on the size and depth of the laser marking saved in advance and the laser marking The relational data of brightness of the photographed image is used to generate reference shadow information corresponding to the processing information of the laser marking, and the reference shadow information and the position information of the invisible mark are stored as shadow judgment information in a storage unit for management; and An application program management section, the application program management section stores different application programs for each user, and provides them to the user terminal according to the user's request, and the application program is configured to be obtained from the image acquisition section of the user terminal Extracting shadow information from the captured image of the stored marking part, comparing the shadow judgment information pre-programmed into the application program with the shadow information, and then evaluating the matching. If the evaluation result is judged to be a match, control the user The authenticity judging unit of the terminal judges that the marking component is a legitimate marking component.

According to the authenticity judging application program and the authenticity judging system of the present invention, the information related to the target object including the invisible mark laser-marked on the marking member mounted on the target object such as the product handled by the user is provided for each use. or processed under different processing conditions, the shadow information contained in the image obtained by shooting the laser marking also contains different information for each user, and the shadow judgment information generated by incorporating the processing information based on laser marking The authenticity judgment application program is also different for each user. Therefore, as long as the third party cannot obtain the user's application program, the information printed on the marking part installed on the user's target object cannot be read correctly. , forgery becomes difficult. On the other hand, the user can easily determine the authenticity of the marked component by activating the user's application program and storing the captured image of the marked component.

According to the authenticity judging application program and authenticity judging system of the present invention, a marking component manufacturer equipped with a laser processing machine capable of fine laser processing receives an order from a user, and performs laser marking according to different processing conditions for each user , by providing it together with the authenticity judgment application program incorporating the shadow judgment information of laser marking based on the processing conditions at that time, it is possible to provide a basic technology such as micro-laser processing that can be read only by each user. A marked component and a technology for judging authenticity using the marked component.

1: Authenticity judgment system

5: Network

10:Information Provider

11: Control Department

12: Input/output section

13: storage department

14: Display part

15: User registration department

16:Processing information preservation department

17:Shadow Judgment Information Generation Department

18: Application Management Department

20, 20-1, 20-2: user terminal

21: Control Department

22: Input/output section

23: Storage Department

24: Display part

25: Image Acquisition Department

26:Authenticity Judgment Department

27: Shoot button

30: target object

31: Marking parts

32: Label information (information related to the target structure)

33, 33-1, 33-2, 33-3: invisible markers

41:Taking images (marking parts)

42:Information image (information image related to target structure)

43, 43-1, 43-2, 43-3: Image (invisible marking)

S600, S610, S620, S630, S640, S650: steps

FIG. 1 is a block diagram showing a basic schematic structure of an authenticity determination system according to an embodiment of the present invention.

FIG. 2 is a diagram showing a method for storing a marking component as a captured image in a user terminal according to an embodiment of the present invention.

FIG. 3 is a diagram showing a schematic correspondence between laser marking processing information and shadow information according to an embodiment of the present invention.

Fig. 4 is a schematic diagram of laser marking of marking parts that are different for each user according to an embodiment of the present invention Fig. 5 is a schematic diagram of markings that are different for each user according to an embodiment of the present invention Schematic diagram of parts undergoing laser marking.

FIG. 6 is a flowchart of a method for authenticity determination according to an embodiment of the present invention.

Embodiments of the authenticity judging application program and the authenticity judging system of the present invention will be described with reference to the following figures.

FIG. 1 is a block diagram showing a basic schematic structure of an authenticity determination system according to an embodiment of the present invention.

Referring to FIG. 1 , an authenticity determination system 1 according to an embodiment of the present invention includes an information providing server 10 and a plurality of user terminals 20 connected to each other through a network 5 .

The authenticity determination system 1 according to the embodiment of the present invention is a system that extracts shadow information from a photographed image of a marking member mounted on a target object and marking required information by laser marking , using the fact that the shadow of the engraved information is different due to the conditions of laser processing, it is compared with the shadow judgment information generated in advance according to the conditions of laser processing, thereby judging whether the marking part installed on the target object is legitimate or not. improper.

Among them, the marking components used in the authenticity judging system 1 according to the embodiment of the present invention will be briefly described with reference to FIG. 2 and FIG. 3 .

FIG. 2 is a diagram showing a method for storing a marking component as a captured image in a user terminal according to an embodiment of the present invention.

Referring to FIG. 2 , a marking component 31 is installed on the fuselage of the drone as the target object 30 . The target object 30 is not limited to the unmanned aerial vehicle that is planned to be regulated in the future, but includes all target objects that require authenticity determination, such as machinery and vehicles that require authenticity. Because these target objects are replaced by counterfeit products, there are many cases of major accidents. Once an accident occurs, the manufacturer is easily held accountable. It is very important for a manufacturer to easily determine whether the target object 30 is a genuine product of the company or a counterfeit product.

Information required for marking is engraved on the marking member 31 used in the authenticity determination system 1 by laser marking. The information required for marking is information about the target object 30 , in particular information for identifying the target object 30 . Hereinafter, this information is collectively referred to as label information.

The marking information is, for example, a registration number when registered with a public institution, a production number, a production lot number, and the like of the target object 30 . The information required for marking may include the name of the manufacturer or the brand logo of the manufacturer, etc.

The material of the marking member 31 is not particularly limited as long as it can be laser marked. It can be a metal plate, a resin plate or a laser engraved seal. In addition, the marking member 31 is not limited to a single substance, and may be a multilayer structure in which a varnish or the like is laminated on a base substrate. However, it is preferable to perform a colored surface treatment or form a coating film on the surface of the marking member 31 so that the difference in color tone or brightness between the laser-marked part and the non-laser-marked part becomes clear. In addition, the marking member 31 is preferably fixed to the target object 30 so as not to be easily detachable and replaceable, and may be made of a material that is easily broken when detached from the target object 30 .

Since the depth and size of the laser marking can be freely changed according to the processing conditions, it is possible to process such that shadows appear in various forms in the photographed image 41 on which the laser marking is taken. In addition, since fine processing is possible in laser processing, the laser marking of the marking member 31 used in the authentication system 1 includes an invisible mark that cannot be recognized with the naked eye.

FIG. 2 shows a state in which a smartphone is used as the user terminal 20 and the marking part 31 is photographed. The indicator member 31 viewed from the front is displayed on the display unit 24 of the smartphone, and the indicator member 31 is stored in the user terminal 20 as a captured image 41 by touching the capture button 27 . In one embodiment, when the user terminal 20 starts the authenticity determination application program of the embodiment of the present invention, when the lens of the user terminal 20 faces the marking part 31, the focus is automatically adjusted, and the shutter is automatically closed after focusing. The captured image 41 is stored in the user terminal 20 .

The captured image 41 includes an information image 42 as an image indicating information, and further includes an image 43 of an invisible mark in the information image 42 . By enlarging and displaying the information image 42 on the user terminal 20, the image 43 of the invisible mark can be confirmed with naked eyes.

FIG. 3 is a diagram showing the corresponding relationship between laser marking processing information and shadow information according to an embodiment of the present invention. Figure 3(a) is an enlarged schematic view of the laser marking part, and Figure 3(b) shows the image of the laser marking part taken from the front of Figure 3(a), that is, from the top of Figure 3(a). schematic diagram.

Referring to FIG. 3( a ), marking information 32 is marked on a part of the marking member 31 by laser marking, and an invisible mark 33 is marked on the marking information 32 . In FIG. 3( a ), although the label information 32 is shown as having a rectangular shape, it actually becomes a part of the label information 32 shown by "123-ABC" in FIG. 2 . The marking information 32 is engraved so that it can be confirmed visually. Therefore, the imprinted surface of the marking information 32 is formed by burning off the surface of the marking member 31 by irradiating laser light while changing its position little by little. The imprinted surface of the marking information 32 is formed as a result of a combination or overlapping of multiple laser irradiations, so it is desired that the pitch or size of the laser irradiations be laser marked according to a prescribed rule.

The invisible mark 33 can also be formed in the same process as the laser marking of the marking information 32 , but the marking member 31 used in the embodiment is processed by laser marking covering the marking information 32 by laser marking.

FIG. 3( a ) shows three types of invisible marks 33 ( 33 - 1 , 33 - 2 , 33 - 3 ) with different depths due to changes in laser processing conditions. Here, the shape of the upper surface of the invisible mark 33 is a circle, which is shown as a cylindrical depression through laser processing, but the shape is not limited to a circle, and may include letters or brand logos, which can be set freely.

If the user terminal 20 captures the marking information 32 including the invisible mark 33 formed as shown in FIG. 3( a ), then a photographed image 41 as shown in FIG. 3( b ) is obtained.

Referring to FIG. 3( b ), the captured image 41 of the marking component 31 includes an information image 42 of the marking information 32 , and the information image 42 includes an image 43 of the invisible mark 33 . At this time, the image 43-1 of the invisible mark 33-1 with the shallowest laser marking depth becomes the brightest image among the images 43 of the invisible mark 33. Like, the image 43-3 of the deepest invisible mark 33-3 of the laser engraving becomes the darkest image among the images 43 of the invisible mark 33, and the image 43-2 of the invisible mark 33-2 of the middle depth becomes the middle brightness of the image.

Although not shown in FIG. 3 , in the case of imprinting invisible marks 33 having the same depth but different outer diameters, the smaller the size, the darker the luminance when the outer diameter is less than a certain level. Therefore, if the relationship between laser marks and shadows having different outer diameters and depths is obtained in advance and stored as reference shadow information, desired shadows can be assumed according to laser processing conditions. By using the assumed shadow information corresponding to specific laser processing conditions as a criterion, it is possible to determine whether the marking component 31 is a component processed under normal specific laser processing conditions, ie authenticity determination, based on the criterion. By including the position of the invisible mark 33, the typeface of the characters to be used, etc. as the judgment criteria, various modified examples including these can be formed, thereby realizing the marking member 31 that is not easy to be counterfeited.

The marking member 31 used in the authenticity judging system 1 according to the embodiment of the present invention includes different laser processing conditions for each user or different judging criteria for each user, such as the position of the invisible mark 33 . The label information 32, the authenticity determination application program (hereinafter referred to simply as the application program) for the user terminal 20 that performs authenticity determination on it also provides a different application program for each user, so the user can easily perform In the authenticity judgment of the own target object 30, on the other hand, since the judging criteria of the authenticity judgment are not transmitted to other users, it is not possible to easily counterfeit the marking member 31.

Referring to FIG. 1 again, the information providing server 10 includes an input/output unit 12, a storage unit 13, a display unit 14, a user registration unit 15, a processing information storage unit 16, a shadow determination information generation unit 17, an application management unit 18 and The control part 11 which controls these components.

The user registration unit 15 accepts the registration of the user who uses the indication member 31, and stores and manages information related to the user. The user is a manufacturer who manages a product manufactured by the company as the target object 30 with the marking member 31 attached thereto, an importer who manages an imported product as the target object 30 , and the like. The user registration unit 15 receives information such as the user's name, location, and mailing address when the user uses it for the first time, and stores information related to these users in the storage unit 13 for management for each user.

The user registration unit 15 also receives the marking information 32 required for laser marking on the marking part 31 from the user during the initial registration or when the user needs the marking part 31, associates with the information related to the user and stores it in the storage part. 13 in. In this way, since the user is likely to log in to the information providing server 10 repeatedly, the user registration unit 15 issues a user ID unique to the user at the time of user registration and sends it to the user terminal 20, and from the user The terminal 20 receives the password corresponding to the user ID, includes it in the information related to the user, and stores it in the storage unit 13 . Thus, when the user inputs the user ID and password from the user terminal 20 , the user registration unit 15 provides a user-specific web page and displays it on the user terminal 20 . In an embodiment, the user registration unit 15 receives the marking information 32 required for laser marking through the user's own webpage.

The processing information storage unit 16 stores processing information different for each user for laser marking the marking information 32 including the set invisible mark 33 on the marking member 31 . The processing information is information indicating where and how to perform laser processing on the marking information 32 desired by the user, including information such as what pattern and depth to form the invisible mark 33 . Such processing information can be individually set for each user by the person in charge of laser marking the marking member 31, and processing items such as the type of the invisible mark 33, the size of the laser marking, and the depth can also be assigned to each column, as the corresponding The type and value of the table are assigned to each row, and the number row of each column is uniquely selected according to the number contained in the user ID, and the basic combination is automatically obtained.

The shadow determination information generator 17 generates reference shadow information corresponding to the processing information of the laser marking based on the previously stored size and depth of the laser marking and the brightness of the captured image of the laser marking, and combines the reference shadow information and the invisible mark 33 The combined position information is stored in the storage unit 13 as shadow judgment information for management.

The data on the relationship between the size and depth of the laser marking and the brightness of the captured image of the laser marking is obtained in the following manner: For example, on the surface of the marking member 31 actually used, marking information not including the invisible mark 33 is formed by laser marking After 32, invisible marks 33 with various shapes and sizes and various depths are formed in the marking information 32, and corresponding additional laser marking is performed, and the shadow state of the captured image is analyzed by photographing the marking information 32. At this time, since the brightness depends on the brightness of the lighting at the time of shooting Therefore, it is not preferable to correlate the laser processing conditions such as the size and depth of the laser marking with the absolute brightness of the captured image of the laser marking.

In the embodiment, the brightness of the marking information 32 formed by laser marking is used as the relative brightness of the reference value, and the brightness of the captured image added by laser marking is correlated. The relative brightness can also be the difference data from the brightness of the marking information 32 , but in the embodiment, the ratio of the brightness of the captured image of the added laser marking to the brightness of the marking information 32 is related. In addition, in other embodiments, the difference between the brightness of the marking information 32 and the brightness of the darkest laser-marked image, that is, the maximum difference, is obtained. The ratio of the difference relative to the maximum difference determines the brightness of the image captured by the additional laser marking.

When determining the size of the laser marking of the user's marking part 31 and the depth of each laser marking, according to the relationship between the size and depth of the laser marking and the brightness of the photographic image of the laser marking, it is assumed that the marking part 31 is used The expected luminance of laser marking is generated by the shading determination information generation unit 17 as reference shading information.

The invisible mark 33 included in the laser marking printed in the embodiment can freely arrange the position. Therefore, the shadow determination information generation unit 17 stores and manages information combining the reference shadow information and the position of the invisible mark 33 as shadow determination information in the storage unit 13 . By generating the shadow judgment information in this way, the marking part 31 to be authenticated is photographed to extract the shadow information, and the authenticity judgment of the marking part 31 can be performed by comparing the extracted shadow information with the shadow judgment information.

In the authenticity judging system 1 according to the embodiment of the present invention, an application program including shadow judging information is provided from the information providing server 10 to the user terminal 20 so that the user terminal 20 can photograph the marking member 31 to perform Authenticity determination. Since the shading determination information is different for each user, the application program including the shading determination information is also different for each user.

The application management unit 18 extracts shadow information from the captured image 41 of the marking part 31 stored in the user terminal 20, compares the shadow judgment information pre-programmed into the application program with the extracted shadow information, and then evaluates the matching , and if the evaluation result is judged to be a match, save the Different application programs are provided to the user terminal 20 according to the user's request, and the application program is configured to control the user terminal 20 to determine that the marking component 31 is a legitimate marking component.

Since the application programs are different for each user, the application program management unit 18 associates each application program with information about the user managed by the user registration unit 15 and stores them in the storage unit 13 .

As shown in FIG. 1 , application A is provided to user A's user terminal 20 - 1 , and application B is provided to user B's user terminal 20 - 2 . Therefore, user A can execute the application program A to perform authenticity determination of the marking part 31 installed on the target object 30 of user A, but since the application program A does not include the shadow determination for the marking part 31 used by user B Therefore, it is impossible to determine the authenticity of the marking member 31 installed on the target object 30 of the user B. On the contrary, the user B can execute the application program B to determine the authenticity of the marking part 31 installed on the target object 30 of the user B, but cannot verify the authenticity of the marking part 31 installed on the target object 30 of the user A. To determine the authenticity.

In this way, each user can only determine the authenticity of the marking member 31 used by himself, and cannot easily counterfeit the marking member 31 of other users because the authenticity of the marking member 31 of other users cannot be ascertained.

The input/output unit 12 of the information providing server 10 includes a communication unit for inputting/outputting data and providing application programs with the user terminal 20 through the network 5 . A keyboard and the like for inputting characters in the information providing server 10 are also included in the input/output unit 12 .

The storage unit 13 stores information related to the user, such as the received user's name, address, mailing address, and the like, as well as data such as the issued user ID. In addition, programs such as an application program for each user and a control program for controlling the information providing server 10 itself are stored. The storage unit 13 is realized by a storage device such as a hard disk, and may be configured as a storage device of an external storage device when the amount of stored information is large.

The display unit 14 displays programs such as management information such as user-related information, an application program provided to the user terminal 20 as needed, or a control program for controlling the information providing server 10 . The display unit 14 is practically used in liquid crystal display devices and the like.

The control unit 11 controls each component of the information providing server 10 to realize the functions described above according to the control program stored in the storage unit 13 . The control unit 11 is realized by a control circuit including a semiconductor device such as a microcomputer.

The user terminal 20 includes an input/output unit 22 , a storage unit 23 , a display unit 24 , an image acquisition unit 25 , and an authenticity determination unit 26 .

The image acquisition unit 25 stores the captured image 41 of the marking member 31 attached to the target object 30 handled by the user, and stores it in the storage unit 23 . The marking information 32 of the marking member 31 includes an invisible mark 33 whose size cannot be confirmed with naked eyes. Therefore, the image 43 of the hidden mark 33 is included in the information image 42 of the captured image 41 stored in the image acquisition unit 25 . Since the image 43 of the invisible mark 33 needs to be magnified and confirmed with the naked eye, and the shadow information of the image 43 of the invisible mark 33 needs to be extracted and used for authenticity determination, the images stored in the image acquisition unit 25 are required to have The sharpness of the level at which shadow information can be confirmed or extracted with the naked eye. Therefore, the image acquisition unit 25 has a resolution capable of visually confirming or extracting shadow information.

Under the control of the application program provided by the information providing server 10, the authenticity determination part 26 extracts shadow information from the captured image 41 of the marking part 31 stored in the image acquisition part 25, and compares it with the shadow information pre-programmed into the application program. The shadow judging information and the shadow information are then evaluated for compatibility, and if the evaluation result is judged to match, then it is judged that the marking part 31 is a valid marking part.

The extraction of shadow information can also be carried out on the overall photographed image 41 of the marking part 31, but in one embodiment, based on the shadow judgment information, the shadow information of the part required for authenticity judgment is concentratedly extracted, thereby reducing the cost of processing. time and load. In the shadow information, the luminance of the information image 42 of the portion of the image 43 not including the invisible mark 33 is used as a reference luminance, and the luminance corresponding to the luminance of the image 43 of each invisible mark 33 is obtained as a difference or a ratio from the reference luminance is represented by and extracted in a form corresponding to the position information of the image 43 of each invisible mark 33 .

The authenticity judging unit 26 compares the extracted shadow information with the shadow judging information, and judges whether the invisible mark 33 is a legitimate marking component 31 according to whether the brightness or position of the hidden mark 33 matches.

The input/output section 22 includes an input unit for allowing the user to input information related to the user (such as the user's name and mailing address), and a communication unit for transferring the input information through the network 5 Send to feed server 10 or receive user ID or application from feed server 10 . The input unit includes a keyboard or a touch panel for inputting text. In addition, pointing devices such as a mouse for selecting data displayed on a display screen are also included.

The storage unit 23 temporarily stores input information such as information related to the user, or stores programs such as a control program for controlling downloaded application programs or basic operations of the user terminal 20 itself. The storage unit 23 is realized by a semiconductor memory or a memory module composed of a plurality of semiconductor memories.

The display unit 24 displays information on web pages provided by the information providing server 10 in addition to displaying various electronic data such as input information such as the user's name and mailing address. The display unit 24 is realized by a liquid crystal display device, an organic EL display device, or the like.

The control unit 21 performs control according to the control program stored in the storage unit 23 , so that each component of the user terminal 20 performs the above functions. The control unit 21 is realized by a control board on which various electronic products including a control microcomputer are mounted.

The user terminal 20 is implemented by electronic devices such as personal computers, tablet terminals, and smart phones that include the above elements. In addition, the image acquisition unit 25 is realized through lenses included in these electronic devices.

The network 5 is a wide area network 5 represented by the Internet.

The application program provided by the information providing server 10 is produced with different specifications for each user, so it is provided as a user-specific application program to the user who specifies the user ID and password. The provided application program is stored in the storage unit 23 of the user terminal 20, and when running, prompts the user to take a picture of the marking part 31 through the image acquisition unit 25 of the user terminal 20, and from the pictured and saved marking part 31 The shadow information is extracted from the captured image 41, and the shadow information will be pre-programmed into the application program. The shadow judging information is compared with the extracted shadow information, and then the matching is evaluated. If the evaluation result is judged to match, the authenticity judging unit 26 is controlled to judge that the marking part 31 is a legitimate marking part.

When there are multiple target objects 30 managed by the user, the material, size, etc. of the marking member 31 can be used in common, and in the case where the size, depth, etc. Judgment is performed, but in the case where the shadow judgment information is different, the application program cannot be made common by the target object 30 . In one embodiment, even for the same user, the information providing server 10 provides different application programs for each target object 30 . In addition, in other embodiments, it is configured to include a plurality of shadow determination information corresponding to different target objects 30 in one application program, and when the application program is executed, a menu for selecting the target object 30 is displayed on the display unit 24, According to the selection of the user, the corresponding shadow determination information is selected to perform authenticity determination.

FIG. 4 is a schematic diagram of laser marking of different marking components for each user according to an embodiment of the present invention. Figure 4(a) shows a part of the marking part 31 installed on the target object 30 of a certain user (A) and an enlarged view of the circled part A, and Figure 4(b) shows that it is installed on other users (A) An enlarged view of a part of the marking part 31 on the target object 30 of (B) and the encircled part B.

Referring to FIG. 4 , both the marking part 31 of the user (A) and the marking part 31 of the user (B) are engraved with the words "123-ABC" as the marking information 32 by laser. In addition, as shown in the enlarged view, in each index information 32 , the characters "ABC" are formed as recesses deeper than the index information 32 as hidden marks 33 by laser engraving and copying.

The difference between the two is the position of the invisible mark 33 in the marking information 32 . In the indicator member 31 of the user (A), the start point of the invisible mark 33 is set at a position xa in the x direction and ya in the y direction from a certain reference point. On the other hand, in the indicator member 31 of the user (B), the starting point of the invisible mark 33 is set to be located at a position xb in the x direction and yb in the y direction from the reference point. The reference point is an arbitrarily set position in advance, for example, it may be a corner of the marking part 31, or it may be the intersection of the line connecting the bottom of the marking information 32 and the line connecting the left side of the preceding marking information 32. Furthermore, the marking information 32 may be laser-marked on an arbitrary position of the marking member 31 by irradiating a minute laser as a reference point.

By including the position information of the distance from the reference point in the shadow judgment information included in the application program, even if the same "ABC" characters are engraved, it is possible for the user (A) to It is determined that the marked information 32 in FIG. 4( a ) is regular information, and the marked information 32 in FIG. 4( b ) is not regular information.

FIG. 5 is a schematic diagram of laser marking of different marking components for each user according to an embodiment of the present invention. Figure 5(a) is an enlarged view of a part of the marking part 31 and the circled part C that is installed on the target object 30 of a certain user (A), and Figure 5(b) shows that it is installed on the target object 30 of another user (B) is an enlarged view of a part of the marking member 31 on the target object 30 and the circled portion D.

Referring to FIG. 5 , similar to the situation in FIG. 4 , the marking part 31 of the user (A) and the marking part 31 of the user (B) are laser-marked with the words "123-ABC" as the marking information 32 . In addition, as shown in the enlarged view, the characters "ABC" as the invisible mark 33 are formed and copied by laser engraving on each marking information 32 .

In the case of FIG. 5 , the difference between the two is the size of the invisible mark 33 in the marking information 32 . The marking part 31 of the user (A) performs laser marking with the size of the invisible mark 33 as the character size of the height ha, while the marking part 31 of the user (B) uses the size of the invisible mark 33 as the character size of the height hb Laser engraving is performed.

In this case, by including information related to the size of the hidden mark 33 such as ha in the shadow determination information included in the application, it is possible to determine whether the characters are regular characters even if the same "ABC" characters are engraved.

In the case of Fig. 4 and Fig. 5, if the photographed image 41 of the marking member 31 is enlarged and observed, it is possible to compare the regular product and the non-standard product to some extent even by visual inspection, but in the modified example of changing the depth of the laser marking In this case, even if the captured image 41 is enlarged and observed, it cannot be easily confirmed. For example, in the indicator part 31 of the user (A) and the indicator part 31 of the user (B), even if the invisible mark The positions and sizes of 33 are the same, and if the laser marking depths of the two are different, the authenticity can be determined by extracting shadow information and comparing it with shadow judgment information.

In this way, marking information 32 is produced by laser marking, in addition to two-dimensional deformation such as the position and size of invisible mark 33, it can also be easily changed in the depth direction, so invisible mark 33 can be produced in various forms. In addition, as a modified example, the continuity of continuous lines, dotted lines, and dotted lines may be changed due to differences in the thickness of the letters or figures of the invisible mark 33 and the intervals at which laser irradiation is performed. These various modification examples may be performed on the entire hidden mark 33 covered on the marked information 32 , or may be limited to a specific part of the hidden mark 33 in the marked information 32 . For example, only one of the characters in the invisible mark 33 in the enlarged view of FIG. 4( a ) may be formed darker than the other characters, or the font may be changed.

In addition, the laser marking surface of the marking information 32 which is the reference of the shadow information of these invisible marks 33 can also be made into various surface states by changing the laser irradiation conditions, resulting in various brightnesses. Therefore, it is also possible to manufacture the marking member 31 whose laser irradiation condition of the marking information 32 has been changed for each user, and make shadow determination information corresponding to the marking member 31 on which the invisible mark 33 is imprinted and copied by laser marking, and incorporate it into in the app.

In this way, the authenticity judging system 1 according to the embodiment of the present invention changes the shadow judging information for each user by adding different specifications for each user, and provides the authenticity judging information only for the user. application to provide authenticity determination technology capable of preventing counterfeiting and easily detecting counterfeiting.

FIG. 6 is a flowchart of a method for authenticity determination according to an embodiment of the present invention.

Referring to FIG. 6 , in step S600 , the user takes a picture of the marking component 31 through the image acquisition unit 25 of the user terminal 20 , and acquires a photographed image 41 of the marking component 31 . In one embodiment, when the application program is executed in the user terminal 20 which acquires and stores the application program for authenticity determination from the information providing server 10 , the display part 24 of the user terminal 20 displays a reminder mark part 31 As the shooting screen of the lens starts, the user then grabs the marking part 31 from the front, and saves the captured image 41 of the marking part 31 by touching the shooting button 27 .

After storing the captured image 41 , in step S610 , the authenticity determining unit 26 of the user terminal 20 extracts shadow information from the captured image 41 according to the instruction of the application program. In the shadow information, the luminance of the indication information 32 of the portion where the invisible mark 33 is not engraved is taken as a reference luminance, and the luminance of the portion where the invisible mark 33 is engraved is expressed as a relative luminance with respect to the reference, and the information including these luminances and the positional relationship are extracted. Information.

Next, in step S620 , the authenticity judging unit 26 compares the extracted shadow information with the shadow judging information for the marking part 31 included in the application. As a result of the comparison, it is determined whether the relationship of position and brightness matches (step S630).

If the result of the judgment is that the extracted shadow information matches the shadow judging information, the authenticity judging unit 26 judges in step S640 that the marking part 31 is a valid marking part, and makes the display part 24 of the user terminal 20 display yes. Authentic labeling part 31. Since the marking member 31 is a legitimate marking member, the user can judge the target object 30 to which the marking member 31 is attached as the genuine target object 30 managed by the user.

On the contrary, if the result of the determination is that the extracted shadow information does not match the shadow determination information, it is determined in step S650 that the marking part 31 is an illegal marking part, and the display unit 24 of the user terminal 20 displays a yes. Illegal marking part 31. Thereby, the user can judge that the target object 30 to which the unauthorized marking member 31 is attached is not the real target object 30 managed by the user but a fake target object 30 .

As mentioned above, although embodiment of this invention was described in detail with reference to drawing, this invention is not limited to the said embodiment, Various changes are possible in the range which does not deviate from the technical scope of this invention.

1: Authenticity judgment system 5: Internet 10: Feed server 11, 21: Control Department 12, 22: Input/output section 13, 23: storage department 14, 24: display unit 15: User registration department 16: Processing Information Storage Department 17: Shadow Judgment Information Generation Department 18: Application Management Department 20 (20-1): user terminal A 20 (20-2): user terminal B 25: Image Acquisition Department 26: Authenticity Judgment Department

Claims (2)

An application program for judging the authenticity of a target object based on a marking component installed on the target object handled by a user, wherein: the application program includes: an image of the marking component stored from an image acquisition unit of a user terminal Extract the shadow information from the captured image, compare the shadow judgment information pre-programmed into the application program with the shadow information, and then evaluate the matching. If the evaluation result is judged to be a match, then control the authenticity judging part of the user terminal to judge the The marking part is a valid marking part on which information related to the target object including a predetermined invisible mark is laser engraved, and at least one of the size, depth, and position of the invisible mark of the laser marking is based on each The user has different basic settings. The shadow determination information includes reference shadow information and the position information of the invisible mark. The reference shadow information is based on the size and depth of the laser marking and the brightness of the captured image of the laser marking. The relational data is obtained corresponding to the processing information of the laser marking, and the application program is different for each user by programming the different shadow determination information for each user. An authenticity determination system provided with an information providing server, the information providing server provides an application program for determining the authenticity of a target object handled by a user based on a marking component installed on the target object, wherein: the information providing server Including: a processing information storage unit, the processing information storage unit stores different processing information for each user, and the processing information is used for laser marking on the marking part related to the target object including the set invisible mark information; a shadow determination information generation unit, the shadow determination information generation unit is based on the relationship data of the size and depth of the laser marking and the brightness of the captured image of the laser marking stored in advance, corresponding to the processing information of the laser marking. reference shadow information, storing the reference shadow information and the position information of the invisible mark as shadow judgment information in a storage unit for management; and an application program management unit, which stores different applications for each user, and provided to the user terminal upon request by the user, the application is configured to read from the user terminal's Extract shadow information from the captured image of the marking part stored in the image acquisition unit, compare the shadow judgment information pre-programmed into the application program with the shadow information, and then evaluate the matching. If the evaluation result is judged to be a match, then The authenticity judging unit of the user terminal is controlled to judge that the marked part is a valid marked part.

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