JP2004101866A - Authenticity determination system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an authenticity determination system which restricts the operation of an authenticity judge to the minimum and enables the exact authenticity determination by automatically performing the whole of the reading of product identification information, the authenticity judgement and the display of determination result. <P>SOLUTION: The authenticity determination system 20a determining the authenticity of a product 1 comprises a storage device 8 storing proper product information, a proper product information sending device 3 which reads the proper product information from the storage device 8 and sends the same, an external database 2 accumulating the basic information 9 for the authentic determination regarding to the product 1 and a genuine signal transmitting device 10 which is incorporated in the database 2 and transmits a genuine signal when the proper product information coincides with the basic information 9 for the authentic determination. Therein, the product 1 is provided with a conductive plate 12 having a thermosensitive coating material layer 11 on the surface thereof and a current applying device 4 which applies a current to the conductive plate only when receiving the genuine signal. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an apparatus for accurately determining the authenticity of a product by a small number of procedures.
[0002]
[Prior art]
Various means for judging the authenticity of a product have been proposed as a countermeasure against a counterfeit product that has become a problem in recent years.
For example, a product or a label is transparently printed with a fluorescent substance and emitted by a specific excitation light irradiating device (for example, see Patent Document 1). By reading the identification information of the IC tag by using the reading device (for example, see Patent Document 2), the authenticity is determined.
In recent years, as an authenticity determination method that does not use a special dedicated device as in the above method, a tag provided for a product for product identification, and an online server pre-stored, downloaded and displayed on a terminal. There has been proposed a method in which the image data of the tag is visually compared with the image data of the tag, and the authenticity is determined based on whether or not they match (see, for example, Patent Document 3).
[0003]
[Patent Document 1] Japanese Patent Application Laid-Open No. 9-258661 (page 3)
[Patent Document 2] JP-A-2000-251164 (second page)
[Patent Document 3] JP-A-2001-341810 (pages 3-4)
[0004]
[Problems to be solved by the invention]
The invention according to the above-mentioned Patent Document 3 uses a public communication line to display image data of a tag on a terminal, thereby eliminating the need for a special dedicated device and simplifying a procedure for reading identification information. Although successful, the authenticator judges the judgment by looking at the image, which may lead to erroneous judgment, or if a similar image appears, it may be impossible to judge the authenticity accurately. In addition, in order to read the identification information, it is necessary for the judge to manually enter a part of the identification code by means of a keyboard or the like, such as transmitting the identification code to the terminal. In particular, it has been an obstacle in determining the authenticity of many items.
[0005]
Accordingly, the present invention provides an authenticity determination system capable of minimizing the work of the authenticator by automatically reading out the product identification information, determining the authenticity, and displaying the determination result, and accurately determining the authenticity. It was done for the purpose of doing.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, the authenticity determination system according to the present invention is
A storage device for storing unique product information, a unique product information transmitting device for reading and transmitting the product unique information from the storage device, an external database storing basic information on authenticity of the product, and an external database A conductive plate having a built-in, authentic signal transmitting device for transmitting an authentic signal when the unique product information and the authentication basic information match, and a conductive plate having a heat-sensitive paint layer on a surface of the product; And a current applying device for applying a current to the conductive plate only when a signal is received.
According to the above-mentioned authentication system, many procedures relating to the authentication can be automatically performed, and simple authentication can be performed. In addition, since the authenticity determination is performed by comparing the unique product information and the authentication basic information in the external database without any artificial determination, an accurate authentication determination can be realized without erroneous determination.
[0007]
The external database may be built in a server, and the unique product information and the authenticity signal may be transmitted and received between the server and the product to be authenticated via a public communication line.
When the authenticity is determined via the public communication line, the judge does not need to prepare any special device for the authenticity, and the work of the judge can be minimized.
[0008]
Further, the external database may be built in a portable terminal, and the unique product information and the authenticity signal may be transmitted or received between the portable terminal and the product to be authenticated by wire or wirelessly.
Even if a problem occurs in the public communication line, or if it is necessary to perform authentication in an environment where the public communication line cannot be used, such as in a place where the public communication environment is not established, use the mobile terminal to perform the authentication. Can be.
[0009]
The unique product information may be at least one of a product number, a manufacturing date, a manufacturing place, and a manufacturer of the product.
[0010]
Further, the heat-sensitive paint layer on the surface of the conductive plate may be provided using two or more kinds of heat-sensitive paints having different hue changes by heating.
[0011]
Further, the unique product information may be transmitted after being encrypted, and may be decrypted in the external database.
[0012]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an embodiment of the authenticity determination system according to the present invention will be described in more detail.
The authentication system according to the present invention stores a storage device that stores unique product information, a unique product information transmission device that reads and transmits the unique product information from the storage device, and accumulates authentication determination basic information related to the product. An external database, which includes a genuine signal transmitting device built in the external database and transmits a genuine signal when the unique product information and the basic information for authenticity determination match, and the product has a heat-sensitive paint layer on the surface. And a current applying device that applies a current to the conductive plate only when the authenticity signal is received.
The product and the external database can transmit and receive the unique product information and the authentic signal via the public communication line, respectively. Using a portable terminal having an external database built therein, it is also possible to transmit / receive the unique product information and the authentic signal between the product and the portable terminal in a wired or wireless manner.
[0013]
Hereinafter, the device configuration of the authenticity determination system will be described. In the above-mentioned authentication system, the storage device, the unique product information transmitting device, the conductive plate having a heat-sensitive paint layer on its surface, and the current applying device are provided for each product to be authenticated. The external database is located separately from the product. The external database includes authenticity determination basic information including unique product information assigned to each product, and authenticity for transmitting an authenticity signal to the product when it is determined that the product is genuine through an authentication determination procedure described later. A signal transmitting device.
[0014]
The conductive plate is made of a material having conductivity, but is preferably made of a material having high thermal conductivity, such as copper, stainless steel, nickel chromium, and copper chromium, which generates heat in a short time when energized from a DC power supply or an AC power supply. Good.
[0015]
The heat-sensitive paint is a paint having a property in which a hue change is caused by a change in temperature, and is preferably an organic system which develops a color such as red, blue, or orange at room temperature and becomes colorless at a certain temperature or higher. It is preferable to use a thermosensitive liquid crystal, a cholesteric crystal exhibiting a hue corresponding to a temperature, or the like.
[0016]
The communication means of the unique product information and the authentic signal is not particularly limited, but preferably, an external database is built in the server, the product and the server are respectively connected to the public communication line, and the unique product information and the authentic signal communicate with the public communication line. It may be transmitted and received via the Internet.
When the authenticity is determined via the public communication line, the judge does not need to prepare any special device for the authenticity, and the work of the judge can be minimized.
[0017]
Further, in an environment where a public communication line is not available, an external database may be built in the mobile terminal, and the unique product information and the authenticity signal may be transmitted and received between the mobile terminal and the product by wire or wirelessly. .
The portable terminal includes, for example, a notebook computer, but is not particularly limited as long as it has a built-in external database and an interface capable of communicating with a product by wire or wirelessly.
[0018]
When performing authentication using a mobile terminal, it is necessary to perform authentication in an environment where the public communication line cannot be used, for example, when a problem occurs in the public communication line or in a place where the public communication environment is not maintained. However, authenticity can be determined by using a portable terminal.
Further, in the authenticity determination using the public communication line according to the present invention, when it is determined that the product is not a genuine product due to some trouble in the public communication line even though the product is a genuine product, Is used as an auxiliary determination device, it is possible to perform more reliable authentication.
[0019]
Next, an authentication method using the above-described authentication system will be described.
The authenticity determination system according to the present invention does not normally operate, and when performing the authenticity determination, the determiner starts the determination by starting the unique product information transmission device.
When starting the authenticity judgment, the judge first starts the unique product information transmitting device, but the starting method is not particularly limited, and the starting operation by a manual switch provided in the unique product information transmitting device, and the product is provided with a remote controller. If so, any method such as a remote start operation by the remote controller may be used.
[0020]
When the unique product information transmitting device is started, the unique product information stored in the storage device in advance, for example, the four information of the serial number, the manufacturing date, the manufacturing location, and the manufacturer is read out, and the unique product information transmitting device is read. Sent to an external database. The external database receives the unique product information transmitted from the unique product information transmitting device, and performs collation with the authenticity determination basic information stored in the external database.
If all of the received unique product information matches the basic information for authenticity determination in the external database, the product that transmitted the unique product information is determined to be genuine. Then, only when it is determined that the product is genuine as a result of the verification, the genuine signal transmitting device transmits the genuine signal to the product.
[0021]
The current application device provided in the product includes a DC or AC power supply and a power supply control unit. When the current applying device receives the authenticity signal, the power supply control unit starts the DC or AC power supply, and the output of the power supply is applied to the conductive plate from a terminal provided on the conductive plate. The conductive plate is heated by applying a current from the current applying device.
The hue of the heat-sensitive paint layer provided on the surface of the conductive plate changes due to the temperature change due to the electric heating of the conductive plate, whereby it can be determined that the product is genuine.
In order to heat the entire plate, the terminals are preferably provided at a distance from the ends of the plate.
[0022]
If the hue of the thermal paint layer did not change, the unique product information was incorrect and did not match the basic information for authenticity determination, or the conductive plate, thermal paint layer, unique product information transmission device provided on the product It is considered that at least one part of the current applying device is forged, and it can be determined that the product is not a genuine product.
For example, if the unique product information received in the external database does not match the basic information for authenticity determination, the product that transmitted the unique product information is determined to be not a genuine product, and the subsequent processing is not performed. That is, since the authentic signal is not transmitted, the current applying device does not energize the conductive plate, and the hue of the heat-sensitive paint layer on the conductive plate surface does not change. Thus, the determiner can determine that the product is a counterfeit product.
[0023]
As described above, the conductive plate having the heat-sensitive paint layer on its surface changes its hue depending on the result of the authenticity judgment, and acts as an authenticity judgment result display body for displaying the result of the authenticity judgment to the judge.
[0024]
In addition, as a result of the above-described authenticity determination, a method of returning a hue change when it is determined to be a genuine product is not particularly limited, and the current application device is manually stopped, or the current application is stopped for a predetermined time after the current application is started. Any of these methods may be used.
[0025]
In the external database, information on the products for which the authentication has been performed may be added to the already stored authentication basic information and stored. The additional information is, for example, the date and time when the authenticity was determined or the path that passed through, and may be an arbitrary character string. When accumulating additional information in an external database, the same additional information is additionally stored in a storage device provided in the product. By accumulating the additional information, the types of unique product information are increased, so that the accuracy of authenticity determination can be improved.
[0026]
As a method of forming the heat-sensitive paint layer on the surface of the conductive plate, for example, means such as printing, spray coating, dip coating and the like can be used. Alternatively, the heat-sensitive paint layer may be processed into a sheet shape and bonded to a conductive plate.
[0027]
Further, between the conductive plate and the heat-sensitive paint, a product name or an arbitrary design may be printed. In particular, if the heat-sensitive paint provided on the surface of the printed conductive plate is a material that is transparent at room temperature, it should function as an information display such as a nameplate or operation method display, except when authenticity is determined. Can be.
[0028]
The conductive plate may be provided on any part of the product. Also, the size and shape are not limited. If the conductive plate is printed as described above and is used as an inscription plate or an operation method display plate except when authenticity is determined, it may be provided in an easily visible place such as an outer plate of a product. On the other hand, if it is provided in an invisible place such as the inside of a product, it is possible to conceal the provision of the authenticity determination system.
Also, the shape and size of the conductive plate and the heat-sensitive paint layer do not need to match, and even if the heat-sensitive paint layer is provided only on a part of the surface of the conductive plate, the heat-sensitive paint layer is located below the heat-sensitive paint layer. A small conductive plate may be provided.
[0029]
Further, a figure may be formed with a heat-sensitive paint on a part of the surface of the plate, and a non-heat-sensitive paint having no hue change due to heating may be applied around the figure. Thus, when a figure is created using a combination of a heat-sensitive paint and a non-heat-sensitive paint and having the same hue at normal temperature, it becomes easier to compare the presence or absence of a hue change due to heating, and the effect of preventing misperception is improved. is there.
[0030]
Further, the heat-sensitive paint layer on the surface of the conductive plate may be provided using two or more kinds of heat-sensitive paints having different hue changes by heating.
Two or more types of heat-sensitive paints are combined in one layer with different types of colors developed by heating, and those combined in one layer with paint that develops color by heating and paint that becomes colorless by heating, It is also possible to use a multi-layered structure coated with various types of heat-sensitive paints. By using two or more kinds of heat-sensitive paints as described above, it is possible to create a figure or a character on the conductive plate and change the hue of the figure or the character by applying heat. When a figure is formed on the heat-sensitive paint layer, forgery becomes difficult because processing performed on the conductive plate surface becomes complicated.
In particular, when a figure is created by combining a paint that is colorless at normal temperature and develops color by heating, and a paint that becomes colorless by heating, the figure is inverted before and after heating, making it easier to see the hue change due to heating and preventing false recognition. There is.
[0031]
Further, unique product information transmitted and received between the product and the external database may be encrypted and transmitted, and may be decrypted in the external database.
In the encryption, the unique product information itself may be encrypted by a public key encryption method or a secret key encryption method, or a random character string may be added to the head, end, middle, etc. of the unique product information. Good.
[0032]
The encryption is performed on the product side, and decrypted in an external database to read the unique product information. Information necessary for decryption, such as a decryption key in a public key encryption method or a secret key encryption method, a random character string assigned to unique product information, or an assigned position, is managed in an external database. .
In the above-mentioned encryption method, information used for encryption and information used for decryption correspond one-to-one, and therefore, information encrypted by an incorrect method cannot be decrypted. Therefore, even if a counterfeit product in which all the unique product information in the storage device is duplicated is manufactured, since it cannot be decrypted in the external database, it can be determined that the product is not a genuine product and a more accurate authenticity determination can be performed. Can be.
[0033]
【Example】
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
Example 1
FIG. 1 is a block diagram of an authentication system 20a according to the first embodiment of the present invention. In FIG. 1, reference numeral 1 denotes a product to be authenticated, which is a storage device 8, a unique product transmitting device 3, an authentication result display body 14 including a conductive plate 12 having a heat-sensitive paint layer 11 on a surface, and a current application device. 4. It has a transmission / reception control unit 6a. The storage device 8 stores four types of unique product information including a product number, a date of manufacture, a place of manufacture, and a manufacturer. The unique product transmitting device 3 reads the unique product information from the storage device 8 and transmits it. The authentication result display 14 displays the authentication result based on a change in hue of the heat-sensitive paint layer 11 provided on the surface of the conductive plate 12. The current applying device 4 applies a current to the conductive plate 12 only when a true signal is received from the external database 2 described later.
Reference numeral 16a denotes a server having a built-in external database 2. The built-in external database 2 includes authenticity determination basic information 9, a genuine signal transmitting device 10, and a transmission / reception control unit 7a. The authenticity signal transmitting device 10 transmits an authenticity signal when the unique product information and the authentication basic information 9 match.
The product 1 and the server 16a are connected to the public communication line 5 via respective transmission / reception controllers 6a and 7a.
[0034]
FIG. 2 is a perspective view of the authentication result display 14. The authentication result display body 14 includes the heat-sensitive paint layer 11 on the surface of the conductive plate 12. Terminals 13 for introducing current are provided at both ends of the conductive plate 12. The heat-sensitive paint layer 11 is configured by applying an organic heat-sensitive liquid crystal to the entire surface. The organic thermosensitive liquid crystal develops a blue color at room temperature and becomes colorless by applying heat.
[0035]
In the authenticity judgment system 20a shown in FIG. 1, when the judge presses a switch (not shown) provided on the product 1, the unique product information transmitting device 3 is started and is stored in the storage device 8 inside the product in advance. The four kinds of unique product information of the product number, the date of manufacture, the place of manufacture, and the manufacturer are transmitted to the server 16a via the public communication line 5 via the transmission / reception control unit 6a.
[0036]
The external database 2 incorporated in the server 16a receives the unique product information transmitted via the public communication line 5 by the transmission / reception control unit 7a, and receives the received unique product information and the basic information for authenticity determination in the external database 2. 9 is compared. Only when all of the received unique product information matches the basic information 9 for authenticity determination, the external database 2 determines that the product 1 that transmitted the unique product information is a genuine product.
If the product 1 is determined to be genuine in the external database 2, a genuine signal is transmitted from the genuine signal transmitting device 10 to the product 1 via the transmission / reception control units 6 a and 7 a via the public communication line 5. You.
[0037]
The current application device 4 is started when a genuine signal transmitted from the genuine signal transmitting device 10 via the public communication line 5 is received via the transmission / reception control unit 6a, and the current provided at both ends of the conductive plate 12 is activated. A current is applied to the introduction terminal 13. The temperature of the conductive plate 12 rises due to the heating by the application of the current, the color of the heat-sensitive paint 11 on the conductive plate 12 that has developed blue at room temperature becomes colorless, and the surface of the conductive plate 12 becomes visible.
As described above, when the hue of the heat-sensitive paint layer 11 of the authentication result display body 14 changes, the judge can judge that the product 1 is genuine.
[0038]
If the hue of the authentication result display body 14 does not change even though the judge has started the unique product information transmitting device 3, the transmitted unique product information is incorrect, or at least the authenticity determination system 20a has The authenticity signal is not transmitted because a part of the configuration is forged or the like, and the determiner visually recognizes that the product 1 is determined to be not authentic.
[0039]
According to the above-mentioned authenticity judgment system 20a, the process of transmitting and receiving information and judging the authenticity is simplified, and the judge can start the unique product information transmitting device 3 by simply switching the on / off switch to the heat-sensitive paint layer 11. Since the determination result appears as the presence or absence of the hue change, the authenticity determination can be easily performed. The time required for authenticity determination is reduced, which is particularly effective when it is necessary to perform authenticity determination on a large number of products 1.
In addition, since the authenticity is determined by comparing the unique product information and the basic authentication information 9 in the external database 2, no artificial judgment is involved and there is no risk of making an erroneous judgment. That is, the judge can judge only the presence or absence of a change in hue of the heat-sensitive paint layer 11 on the surface of the conductive plate 12, so that the authenticity of the product 1 can be accurately judged without erroneous recognition.
The authenticity determination system according to the first embodiment using the public communication line 5 is optimal for authenticity determination of Internet-compatible home electric appliances and the like, which has been actively developed in recent years. Since public communication lines have become widespread and no special device is required when implementing the authentication system according to the present embodiment, simple authentication can be realized.
[0040]
Example 2
FIG. 3 is a block diagram of an authentication determination system 20b according to the second embodiment of the present invention. The configuration is the same as that of the first embodiment except that the external database 2 is incorporated in the mobile terminal 16b instead of the server 16a, and the product 1 and the mobile terminal 16b are connected by the communication cable 15. As the portable terminal 16b, a portable PC having a built-in external database and a communication cable transmission / reception controller 7b was used. The product 1 and the mobile terminal 16b are connected by a communication cable 15 via transmission / reception controllers 6b and 7b, respectively.
[0041]
When the switch provided on the product is pressed, the unique product information transmitting device 3 starts, and the unique product information is transmitted. The transmitted unique product information is transmitted from the transmission / reception control unit 6b to the mobile terminal 16b via the communication cable 15. Then, in the same manner as in the first embodiment, the external database 2 authenticates the unique product information by comparing the unique product information with the basic authentication information 9. As a result, when it is determined that the product 1 that has transmitted the unique product information is a genuine product, a genuine signal is transmitted from the genuine signal generator 10 to the current application device 4 on the product side via the communication cable 15. You. The subsequent display method of the authenticity determination result using the conductive plate 12 provided with the heat-sensitive paint layer 11 on the surface is the same as that of the first embodiment. Further, when the portable terminal 16b has a monitor, if the result of the authentication judgment is also displayed on the portable terminal 16b, erroneous recognition and erroneous judgment by the judge can be eliminated.
[0042]
The authenticity determination system 20b described above has, in addition to the advantages of the authenticity determination system 20a described in the first embodiment, an environment where the public communication line 5 cannot be used, for example, when a trouble occurs in the public communication line 5 or when the communication environment is improved. Even when it is necessary to perform the authentication in a place where the authentication is not performed, the authentication can be performed by using the mobile terminal 16b.
Also, in the authenticity determination using the public communication line 5 described in the first embodiment, when it is determined that the product 1 is a genuine product but is not a genuine product due to some trouble in the public communication line 5. Is used as an auxiliary authentication determination system 20b using the mobile terminal 16b, the communication cable 15, and the like, so that more reliable authentication can be performed.
[0043]
Example 3
FIG. 4 is a block diagram of an authenticity determination system 20c according to the third embodiment of the present invention. In FIG. 4, the configuration of the product 1 is the same as the configuration described in the first and second embodiments. The configuration of the external database 2 built in the portable terminal 16c is the same as the configuration described in the first and second embodiments. Communication between the product 1 and the mobile terminal 16c is performed using infrared rays as carrier waves via transmission / reception controllers 6c and 7c for wireless communication, respectively. The starting method of the unique product information transmitting device 3, the transmission and reception of the unique product information and the collation with the basic information for authenticity judgment, the authenticity judgment, and the display method of the authenticity judgment are the same as those described in the first embodiment.
That is, the authenticity determination system 20c shown in FIG. 4 uses an infrared carrier wave 21 instead of the communication cable 15 of the authenticity determination system 20b (see FIG. 3) of the second embodiment to communicate the unique product information and the authenticity signal. Has the same configuration and operation as the second embodiment.
[0044]
Example 4
FIG. 5 is a top view of the heat-sensitive paint layer 11d of the authentication result display body 14d used in place of the authentication result display body 14 of the authentication system 20a according to the first embodiment. In the heat-sensitive paint layer 11d, a figure is created using two kinds of heat-sensitive paints, a heat-sensitive paint A17 and a heat-sensitive paint B18. The heat-sensitive paint A17 is an organic heat-sensitive liquid crystal that exhibits a blue color at normal temperature and becomes colorless by heating, and the heat-sensitive paint B18 is an organic heat-sensitive liquid crystal that is colored so as to show the same blue color as the heat-sensitive paint A17 at normal temperature and change to red by heating. is there. The conductive plate 12 is the same as in the first embodiment.
[0045]
As a result of the authenticity judgment by the authenticity judgment system according to the fourth embodiment, when the product 1 is judged to be genuine and the conductive plate 12 is energized and heated, the hue of the heat-sensitive paint layer 11d on the surface of the conductive plate 12 is changed as shown in FIG. The state changes from FIG. 5A to FIG. 5B.
By the energization heating, the hue of the figure appearing on the authentication result display body 14d changes between colorless and red, making it easier for the judge to recognize the change in the hue, compared with the authentication result display body 14 of the first embodiment. More accurate authentication can be determined. In addition, the coating process of the heat-sensitive paint layer 11d applied on the conductive plate 12 becomes complicated, and forgery can be made difficult.
[0046]
Example 5
FIG. 6 is a view showing a result of authenticity determination in which a figure is created using the heat-sensitive paint A17 used in the authentication result display body 14d of the authenticity determination system according to the fourth embodiment and the non-heat-sensitive paint 19 in which hue does not change due to heating. The top view of the heat-sensitive paint layer 11e of the display 14e is shown.
As the non-heat-sensitive paint 19, a pigment is used such that the heat-sensitive paint A17 has the same blue color as the hue shown at room temperature, and a figure is created using the heat-sensitive paint A17 and the non-heat-sensitive paint 19 as in the fourth embodiment. When the graphic is created in this way, the change in hue of the heat-sensitive paint A17 can be easily compared before and after the conductive plate 12 is heated by energization and can be easily visually recognized.
[0047]
【The invention's effect】
As described above, according to the present invention, it is possible to automatically perform many procedures related to authentication, and to perform authentication in a simple and short period of time, with a small number of operations of the authenticator. .
In addition, the authenticity judgment is made by comparing the unique product information and the basic information of the authenticity judgment in the external database without any artificial judgment, and the judgment result is displayed by the presence or absence of the hue change of the heat-sensitive paint layer. However, accurate authentication is realized.
Further, by providing the heat-sensitive paint layer using two or more kinds of heat-sensitive paints, and by encrypting and transmitting information related to the authentication between the product and the external database, more accurate authentication can be performed. it can.
[Brief description of the drawings]
FIG. 1 is a block diagram of an authentication system according to a first embodiment of the present invention.
FIG. 2 is a perspective view of an authentication result display body according to the first embodiment of the present invention.
FIG. 3 is a block diagram of an authentication system according to a second embodiment of the present invention.
FIG. 4 is a block diagram of an authentication system according to a third embodiment of the present invention.
FIG. 5 is a top view of an authentication result display according to a fourth embodiment of the present invention.
FIG. 6 is a top view of an authentication result display according to a fifth embodiment of the present invention.
[Explanation of symbols]
1. Product
2. External database
3. Unique product signal transmission device
4: Current applying device
5 Public telephone line
8. Storage device
9 ... Authentication basic information
10. Authentic signal transmission device
11 ... Thermal paint layer
12 ... conductive plate
16a ... Server
16b: Mobile terminal
16c… Mobile terminal
20a, 20b, 20c ... Authentication judgment system

Claims (6)

An authenticity judgment system for judging the authenticity of a product,
A storage device for storing unique product information;
A unique product information transmitting device for reading and transmitting the unique product information from the storage device,
An external database that stores basic information on the authenticity of the product,
Built in this external database, including an authentic signal transmitting device that transmits an authentic signal when the unique product information and the authentication basic information match,
In the product,
A conductive plate with a heat-sensitive paint layer on the surface,
And a current applying device for applying a current to the conductive plate only when the authenticity signal is received. Said external database is built into the server,
The authenticity determination system according to claim 1, wherein the unique product information and the authenticity signal are transmitted and received between the server and the product to be authenticated via a public communication line. The external database is built in the mobile terminal,
The authenticity determination system according to claim 1, wherein the unique product information and the authenticity signal are transmitted or received between the mobile terminal and the product to be authenticated by wire or wirelessly. 4. The authenticity determination system according to claim 1, wherein the unique product information is at least one of a product number, a manufacturing date, a manufacturing place, and a manufacturer of the product. The authenticity determination system according to claim 1, wherein the heat-sensitive paint layer is provided using two or more kinds of heat-sensitive paints having different hue changes due to heating. The authenticity determination system according to claim 1, wherein the unique product information is transmitted after being encrypted, and decrypted in the external database.

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