JP2016148932A - Ticket authenticity determination system, ticket issuing device, ticket examination device, ticket authenticity determination method and ticket - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a ticket authenticity determination system, a ticket issuing device, a ticket examination device, a ticket authenticity determination method and a ticket which can improve the accuracy of determining the authenticity of a ticket.SOLUTION: According to an embodiment, a ticket authenticity determination system includes a first reading part, a printing part, a second reading part, and a determination part. The first reading part reads identification information from a first image printed on a ticket. The printing part overlaps a second image obtained by encrypting second information on the first image partially or entirely to print the second image on the ticket in a method different from a printing method of the first image. The second reading part irradiates light of two different wavelengths to read first information from the first image, and also reads the second information from the second image. The determination part determines authenticity of the ticket on the basis of the first information and the second information read by the second reading part.SELECTED DRAWING: Figure 1

Description

  Embodiments described herein relate generally to a ticket authenticity determination system, a ticket issuing device, a ticket check device, a ticket authenticity determination method, and a ticket.

  On toll roads such as expressways, ETC systems using wireless communication have become widespread. The ETC system is usually premised on credit settlement, but in order to respond to users who wish to pay with cash, a ticket is issued at the entrance IC and is based on the information written on the ticket at the exit IC. A so-called pass ticket system is also used to specify the billing amount. If a pass ticket is counterfeited, the toll road can be used illegally, so it is necessary to take measures against the counterfeit.

  In some cases, a ticket such as a boarding ticket is issued in a transportation facility such as a railroad or a bus in order to prove that the price such as a fare has been paid. In such a case, the user may forge or illegally use the ticket. Therefore, it is necessary to determine whether or not the ticket is genuine in order to prevent counterfeiting and unauthorized use of the ticket. However, in the conventional technique, the accuracy of ticket authenticity determination is poor, and it may not be possible to determine whether the ticket is genuine.

JP 2006-244097 A JP 2007-164715 A

  The problem to be solved by the present invention is to provide a ticket authenticity determination system, a ticket issuing device, a ticket check device, a ticket authenticity determination method, and a ticket capable of improving the accuracy of ticket authenticity determination. .

  The ticket authenticity determination system according to the embodiment includes a first reading unit, a printing unit, a second reading unit, and a determination unit. The first reading unit reads identification information from a first image that is a first image printed on a ticket and that is obtained by encrypting first information including identification information assigned to each ticket. The printing unit converts a second image obtained by encrypting the second information including the identification information read by the first reading unit by a method different from the first image printing method, to a part of the first image. Alternatively, it is printed on a ticket superimposed on all. The second reading unit reads the first information from the first image printed on the ticket by irradiating the ticket with light of the first wavelength corresponding to the first image, and the second information By irradiating the ticket with light of a second wavelength corresponding to the image, the second information is read from the second image printed on the ticket by the printing unit. The determination unit determines the authenticity of the ticket based on the first information and the second information read by the second reading unit.

The figure which shows the structural example of the ticket authenticity determination system 1 in one Embodiment. The figure which shows an example of the cross section of ticket TK in one Embodiment. The figure which shows an example of a function structure of the ticket issuing apparatus 100 in one Embodiment. The figure which shows an example of the hardware constitutions of the ticket issuing apparatus 100 in one Embodiment. The figure which shows an example of the upper surface of ticket TK on which the predetermined image was printed. The figure which shows an example of the cross section of ticket TK on which the predetermined image was printed. The figure which shows an example of the condition which prints 1st image IMG1 for every ticket TK. The figure for demonstrating in detail the printing operation of the ticket issuing apparatus 100 in one Embodiment. The figure which shows an example of the cross section of ticket TK printed by superimposing 1st image IMG1 and 2nd image IMG2. The flowchart which shows an example of the process performed by the ticket issuing apparatus 100 in one Embodiment. The figure which shows an example of a structure of the ticket check device 200 in one Embodiment. The figure which shows an example of the hardware constitutions of the ticket inspection apparatus 200 in one Embodiment. FIG. 3 is a diagram illustrating an example of a configuration of a reading unit 210. The figure which shows an example of a structure of the light-receiving part 220. The figure which shows the other example of a structure of the light-receiving part 220. FIG. The figure which shows an example of the image and character which are printed on ticket TK in the ticket authenticity determination system 1 of one Embodiment. The figure which shows an example of the correspondence of the determination result of the determination part 282, and a true / false pattern. The figure which shows an example of the table regarding the presence or absence of use of identification information. The flowchart which shows an example of the process performed by the ticket inspection apparatus 200 in one Embodiment.

  Hereinafter, a ticket authenticity determination system, a ticket issuing device, a ticket check device, a ticket authenticity determination method, and a ticket according to embodiments will be described with reference to the drawings.

  In a pass ticket used on a toll road or the like, in addition to visually observable information, usage information such as the IC name and time of the entrance that becomes the usage start section may be stored by a method such as magnetic storage. Recently, the use of a two-dimensional code has been studied as a method for storing the usage information.

  FIG. 1 is a diagram illustrating a configuration example of a ticket authenticity determination system 1 according to an embodiment. The ticket authenticity determination system 1 according to the present embodiment is a system for determining the authenticity of a ticket (passage ticket) TK that is required when passing on a toll road such as an expressway. In the present embodiment, the ticket authenticity determination system 1 is described as a system for determining the authenticity of a ticket (passage ticket) that is required when passing on a toll road such as an expressway, but is not limited thereto. For example, the ticket authenticity determination system 1 may be a system for determining the authenticity of a ticket (ticket) issued by a transportation facility such as a train or a bus, or a recreational facility such as a movie theater or an amusement park issues a ticket. It may be a system that determines the authenticity of a ticket to be played.

  FIG. 2 is a diagram illustrating an example of a cross section of the ticket TK according to the embodiment. In the present embodiment, the ticket TK is thermal paper composed of a paper layer 12 and a thermal layer 14. The heat-sensitive layer 14 is formed by mixing the leuco dye 16 and the developer 18 in a binder and applying the mixture on the paper layer 12. The mixture of the leuco dye 16 and the developer 18 is colorless at room temperature (for example, about 23 ° C.). When heat energy is applied to the mixture in this state by heating or the like, the mixture dissolves. As a result, the ticket TK develops a color by causing a chemical reaction when the leuco dye 16 and the developer 18 come into contact with each other.

  For example, a portion colored by a chemical reaction causes the heat-sensitive layer to color black by absorbing the wavelength of light in the visible region. In addition, the heat-sensitive layer 14 including a portion colored by a chemical reaction does not absorb light wavelengths in a non-visible region such as near infrared, infrared, near ultraviolet, and ultraviolet, and reflects all irradiated light. Therefore, in the case of a scanner that receives reflected light of human eyes or light in the visible region, an image printed on the heat sensitive layer 14 of the ticket TK in this embodiment can be recognized. On the other hand, in the case of a scanner that receives reflected light of light in a non-visible region (for example, infrared light), an image printed on the heat-sensitive layer 14 of the ticket TK in this embodiment cannot be recognized. In the present embodiment, the heat-sensitive layer 14 of the ticket TK has been described as being colored black by heating, but is not limited thereto. For example, the above-described leuco dye 16 may be appropriately changed to develop blue, red, or the like.

  Further, the heat-sensitive layer 14 of the ticket TK in the present embodiment forms a coat layer that does not absorb moisture or the like. Thereby, the ticket TK in the present embodiment makes it difficult to fix (impregnate) ink or the like on the surface of the ticket TK.

  The ticket authenticity determination system 1 includes a ticket issuing device 100 and a ticket checking device 200. For example, the ticket issuing device 100 is provided on the right side when viewed from the traveling direction of the vehicle at the entrance of a toll road. The ticket issuing device 100 issues a ticket TK for imposing a predetermined fee when the vehicle passes. The ticket checking device 200 is provided on the right side when viewed from the traveling direction of the vehicle, for example, at a toll gate (exit) on a toll road. The ticket checking device 200 collects the ticket TK issued by the ticket issuing device 100 and collects a fee corresponding to the ticket TK from the vehicle. Hereinafter, the ticket issuing device 100 and the ticket checking device 200 will be described with reference to the drawings. First, the ticket issuing device 100 will be described with reference to FIGS. 3 and 4.

  FIG. 3 is a diagram illustrating an example of a functional configuration of the ticket issuing device 100 according to an embodiment. FIG. 4 is a diagram illustrating an example of a hardware configuration of the ticket issuing device 100 according to an embodiment. The ticket issuing device 100 includes a communication unit 102, a vehicle detection unit 104, a reading unit 106, a printing unit 108, a transport unit 110, a control unit 130, a storage unit 150, a ticket stacker 160, and a discharge port 170. And a recovery unit 180.

  The communication unit 102 communicates with other devices via the network NW. The network NW is a LAN (Local Area Network), a WAN (Wide Area Network), the Internet, or the like.

  The vehicle detection unit 104 is an optical sensor that detects a vehicle, for example. When the vehicle detection unit 104 detects a vehicle, the vehicle detection unit 104 generates a detection signal. Further, the vehicle detection unit 104 may detect a vehicle license plate, a vehicle type (vehicle type), and the like.

  The reading unit 106 includes a light source and an image sensor (not shown). The reading unit 106 includes, for example, a light source that emits near-infrared or infrared light and a light source that emits visible light. The light source is, for example, an LED (Light Emitting Diode). Hereinafter, a light source that emits near-infrared light or infrared light is referred to as a “first light source”, and a light source that emits visible light is referred to as a “second light source”. The reading unit 106 is an example of a “first reading unit”.

  The imaging element is, for example, a CCD (Charge Coupled Device) image sensor or a CMOS (Complementary Metal Oxide Semiconductor) image sensor. The reading unit 106 irradiates the ticket TK with light from a light source, and propagates reflected light reflected from the ticket TK to the image sensor. The imaging device generates a digital signal by converting the propagated reflected light into an electrical signal. The reading unit 106 encodes the generated digital signal to generate image data. Thereby, the reading unit 106 reads an image from the ticket TK.

  The printing unit 108 includes a thermal head 109 for heating the thermal layer. In the thermal head 109, for example, resistors that generate heat when an electric current is passed are arranged in a line or matrix. The printing unit 108 controls a current that flows through the resistor of the thermal head 109 in accordance with a control signal output from a print control unit 138 described later. As a result, the printing unit 108 heats the thermal head 109. The printing unit 108 prints an image by pressing the heated thermal head 109 against the thermal layer 14 of the ticket TK to be printed. The printing unit 108 may print the character CHAR instead of the image.

  The conveyance unit 110 includes a delivery roller 112, a conveyance path belt 114, a first stopper 116, a second stopper 118, and a conveyance outlet roller 120. The delivery roller 112 and the conveyance exit roller 120 include, for example, two rollers, and the ticket TK is sandwiched between these rollers. The first stopper 116 is provided in a section between the ticket stacker 160 and the printing unit 108. The first stopper 116 has a stop plate that rotates in the vertical direction. The vertical direction represents a direction substantially perpendicular to the conveyance surface of the conveyance path belt 114. For example, when the stop plate is rotated downward, the first stopper 116 stops the transport of the ticket TK performed by the transport path belt 114 in the section between the ticket stacker 160 and the printing unit 108.

  The second stopper 118 is provided in a section between the reading unit 106 and the discharge port 170. The second stopper 118 has a stop plate that rotates in the vertical direction. For example, when the stop plate is rotated downward, the second stopper 118 stops the transport of the ticket TK performed by the transport path belt 114 in the section between the reading unit 106 and the discharge port 170. Hereinafter, the state of the first stopper 116 and the second stopper 118 that stops the transport of the ticket TK is referred to as a “closed state”, and the first stopper 116 and the second stopper 118 that advance the transport of the ticket TK advance. The state is referred to as “open state”. The delivery roller 112, the conveyance path belt 114, the first stopper 116, the second stopper 118, and the conveyance outlet roller 120 are collectively referred to as a “conveyance mechanism”.

  The transport unit 110 drives the transport mechanism by a control signal from a transport control unit 136 described later. Specifically, the transport unit 110 drives the transport mechanism so as to transport the ticket TK from the ticket stacker 160 in which a ticket TK on which a predetermined image is printed in advance is stored. Further, the transport unit 110 drives the transport mechanism so as to transport the ticket TK from the reading unit 106 to the printing unit 108. Further, the transport unit 110 drives the transport mechanism so as to transport the ticket TK to the discharge port 170 for discharging the ticket TK from the printing unit 108.

  Here, the ticket TK stored in the ticket stacker 160 will be described with reference to FIGS. 5 and 6. FIG. 5 is a diagram illustrating an example of the upper surface of the ticket TK on which a predetermined image is printed. FIG. 6 is a diagram illustrating an example of a cross section of the ticket TK on which a predetermined image is printed.

  A predetermined image is printed on the surface of the ticket TK (the heat-sensitive layer 14) by a UV (Ultraviolet) printing method in which specific ink is cured by ultraviolet rays or the like. The specific ink is an ink that absorbs light of a specific wavelength such as infrared or ultraviolet. In the present embodiment, a specific ink is described as an ink that absorbs light having a near-infrared wavelength. For example, in an environment where visible light such as sunlight or illumination light is radiated, in the case of ink that absorbs light having a wavelength in the near infrared, light having a wavelength in the visible region is transmitted without being absorbed by the ink. The TK heat-sensitive layer 14 is irradiated. That is, it is possible to read characters and images printed under ink.

  The predetermined image described above is, for example, a two-dimensional code in which identification information (for example, original ticket number) assigned to each ticket TK is encrypted. Encryption is based on, for example, public key encryption technology. A person who performs encryption creates a pair of keys that are a pair of a public key and a secret key in advance, and encrypts the identification information into a predetermined image using the secret key among the created keys.

  That is, to summarize the above, a predetermined image with the identification information encrypted is printed on the surface of the ticket TK (the heat sensitive layer 14) as an image that cannot be seen by human eyes. Hereinafter, the predetermined image printed on the surface of the ticket TK (the heat-sensitive layer 14) is referred to as “first image IMG1”. In addition, the public key and the secret key used when encrypting the identification information in the first image IMG1 are referred to as a “first public key” and a “first secret key”, respectively. The first image IMG1 may include road information along with the identification information. The road information is, for example, a road number (for example, a national road XX) assigned to a road network managed by the country, a name assigned to the road number, or the like. Hereinafter, information including at least identification information is referred to as “first information”.

  Further, the ticket TK in the present embodiment includes an area for printing an image and an area for printing characters. As a result, by dividing these areas on the surface of one ticket TK, an image to be described later is accurately read.

  FIG. 7 is a diagram illustrating an example of a situation in which the first image IMG1 is printed for each ticket TK. For example, the ticket TK is cut out to a predetermined size from a large thermal roll paper Roll. Different identification information is assigned to each cut ticket TK. Each allocated identification information is encrypted into the first image IMG1 (for example, a two-dimensional code). As a result, the encrypted first image IMG1 is printed on the cut ticket TK. As a result, each ticket TK can be identified by reading and analyzing the printed first image IMG1. Note that before the ticket TK is cut out from the large thermal roll paper Roll to a predetermined size, a first image IMG1 having a predetermined pattern may be printed in advance on a portion to be cut out of the ticket TK. The predetermined pattern is a pattern in which the identification information (first image IMG1) of the ticket TK cut out from one thermal roll paper Roll does not overlap. That is, in the present embodiment, the first image IMG1 is printed in a predetermined pattern for each pattern that determines the size of the thermal roll paper Roll, and a ticket TK having the same first image IMG1 is determined with a predetermined probability ( You may make it overlap by the duplication rate of ticket TK in a pattern paper.

Here, returning to FIG. 3 and FIG. 4, the ticket issuing device 100 will be described.
The control unit 130 includes a decryption unit 132, an encryption unit 134, a transport control unit 136, a print control unit 138, a communication control unit 140, and a determination unit 142. Some or all of the functional units of the control unit 130 are software functional units that function when a processor such as a CPU (Central Processing Unit) executes a program stored in the storage unit 150. In addition, some or all of the functional units of the control unit 130 may be hardware functional units such as LSI (Large Scale Integration) and ASIC (Application Specific Integrated Circuit).

  The decryption unit 132 decrypts the first information from the image data generated by the reading unit 106 using the first public key. The first public key is stored in the storage unit 150 described later.

  The encryption unit 134 converts the information including both the first information and the additional information decrypted by the decryption unit 132 into a pair of encryption keys different from the encryption key pair of the first public key and the first secret key. By using this, the image is encrypted into an image different from the first image IMG1 described above (hereinafter referred to as “second image IMG2”). The additional information includes the vehicle license plate, the vehicle type (vehicle type), the date and time when the ticket is issued, the identification information of the toll gate, the identification information of the lane on which the vehicle is traveling, the identification information assigned to the device itself, and the like. Among the additional information, the vehicle license plate, the vehicle type (vehicle type), and the date and time when the ticket is issued are generated each time the vehicle is detected by the vehicle detection unit 104. Hereinafter, information including both the first information and the additional information is referred to as “second information”. An encryption key pair different from the encryption key pair of the first public key and the first secret key is referred to as a “second public key” and a “second secret key”. Note that the encryption unit 134 extracts only the identification information from the first information decrypted by the decryption unit 132, and uses the second secret key to extract information including both the extracted identification information and additional information. The second image IMG2 may be encrypted.

  The conveyance control unit 136 generates a control signal for controlling the conveyance unit 110. The transport control unit 136 controls the transport unit 110 by outputting the generated control signal to the transport unit 110.

  The print control unit 138 generates a control signal for causing the printing unit 108 to print the second image IMG2 encrypted by the encryption unit 134. The print control unit 138 controls the printing unit 108 by outputting the generated control signal to the printing unit 108.

  The communication control unit 140 generates a control signal for controlling the communication unit 102. The communication control unit 140 controls the communication unit 102 by outputting the generated control signal to the communication unit 102.

  The determination unit 142 determines whether various images have been read by the reading unit 106. Further, the determination unit 142 determines whether or not the information is decoded by the decoding unit 132. Further, the determination unit 142 determines the presence or absence of a vehicle based on the detection signal generated by the vehicle detection unit 104.

  The storage unit 150 includes a nonvolatile storage medium (non-temporary storage medium) such as a ROM (Read Only Memory), a flash memory, and an HDD (Hard Disk Drive), and a volatile property such as a RAM (Random Access Memory) and a register. Storage medium. The storage unit 150 stores a first public key, a second secret key, a second public key, additional information, extracted identification information, first information, second information, image data, a detection signal, and the like. .

  Here, with reference to FIG. 4, the overall operation of the ticket issuing apparatus 100 will be specifically described mainly with respect to the operations of the transport control unit 136 and the print control unit 138. First, the ticket issuing device 100 performs the following operations in advance before a vehicle is detected.

  The transport control unit 136 generates a control signal for driving the delivery roller 112 in the transport mechanism of the transport unit 110 so as to take out the ticket TK from the ticket stacker 160, and outputs the generated control signal to the transport unit 110. As a result, the ticket TK is sent out from the ticket stacker 160 to the conveyance path belt 114 (position G01).

  Next, the transport control unit 136 generates a control signal for driving the transport path belt 114 so as to transport the ticket TK taken out from the ticket stacker 160 to the position G02, and outputs the generated control signal to the transport unit 110. The position G02 is a position where the reading unit 106 can read an image from the ticket TK. Further, the transport control unit 136 generates a control signal for opening the first stopper 116 and a control signal for closing the second stopper 118, and sends both generated control signals to the transport unit 110. Output.

  The reading unit 106 reads the first image IMG1 by irradiating the ticket TK conveyed to the position G02 with light from the first light source. The ticket TK read by the reading unit 106 stops at the second stopper 118 (position G03).

  Next, the conveyance control unit 136 moves the conveyance path belt 114 in the direction opposite to the above-described driving direction (left direction in the drawing) so as to convey the ticket TK stopped at the second stopper 118 (position G03) to the position G04. A control signal for driving in the right direction in the figure is generated, and the generated control signal is output to the transport unit 110. The position G04 is a position where the thermal head 109 of the printing unit 108 can come into contact with the character printing area in the ticket TK. Hereinafter, the direction in which the conveyance path belt 114 is driven toward the discharge port side is referred to as “downstream side”, and the direction in which the conveyance path belt 114 is driven toward the ticket stacker 160 side is referred to as “upstream side”.

  The print control unit 138 generates a control signal for controlling the current applied to the thermal head 109 in order to print additional information as the character CHAR on the ticket TK conveyed to the position G04, and the generated control signal is output to the printing unit. It outputs to 108. As a result, the printing unit 108 prints the additional information as the character CHAR in the character printing area of the ticket TK.

  Next, the conveyance control unit 136 generates a control signal that causes the first stopper 116 to be closed, and outputs the generated control signal to the conveyance unit 110. Thereby, the conveyance control unit 136 stops the ticket TK on which the character CHAR is printed by the printing unit 108 at the first stopper 116 (position G05). Thereafter, the ticket issuing device 100 waits for the ticket TK at the position G05 until the vehicle detection unit 104 detects the vehicle.

When the vehicle is detected by the vehicle detection unit 104, the ticket issuing device 100 performs the following operation.
First, the transport control unit 136 generates a control signal for driving the transport path belt 114 downstream so that the ticket TK transported to the position G05 is transported to the position G06, and outputs the generated control signal to the transport unit 110. . The position G06 is a position where the thermal head 109 of the printing unit 108 can contact both the image printing area and the character printing area in the ticket TK. Thereby, the transport unit 110 transports the ticket TK transported to the position G05 to the position G06.

  The print control unit 138 generates a control signal for controlling the current applied to the thermal head 109 and prints the generated control signal in order to print the second image IMG2 on the ticket TK conveyed to the position G06. Output to the unit 108. As a result, the printing unit 108 prints the second image IMG2 in the image printing area of the ticket TK. In addition, the print control unit 138 generates a control signal for superimposing the second image IMG2 on a part of the first image IMG1 read by the reading unit 106 for printing. Note that the print control unit 138 may generate a control signal for printing the second image IMG2 superimposed on the entire first image IMG1 read by the reading unit 106. Accordingly, the printing unit 108 prints the second image IMG2 by superimposing the second image IMG2 on a part or all of the first image IMG1 based on the control signal generated by the print control unit 138.

  Further, the ticket issuing device 100 may further print additional information such as a vehicle type and a license plate generated when the vehicle is detected on the ticket TK transported to the position G06. In this case, the print control unit 138 controls the current applied to the thermal head 109 in order to print the additional information such as the vehicle type and the license plate as characters CHAR on the ticket TK transported to the position G06. A signal is generated, and the generated control signal is output to the printing unit 108. As a result, the printing unit 108 newly prints additional information such as a vehicle type and a license plate in the character printing area of the ticket TK.

  Next, the transport control unit 136 generates a control signal that drives the transport path belt 114 downstream so that the ticket TK transported to the position G06 is transported again to the position G02, and sends the generated control signal to the transport unit 110. Output. Thereby, the transport unit 110 transports the ticket TK transported to the position G06 again to the position G02.

  The reading unit 106 irradiates the ticket TK conveyed to the position G02 again with light from the second light source, and reads the second image IMG2 printed at the position G06. The decryption unit 132 decrypts the second information from the image data of the second image IMG2 generated by the reading unit 106 using the second public key or the second secret key. The determination unit 142 determines whether or not the second information used when the second image IMG2 is printed matches the second information decoded from the image data of the printed second image IMG2. That is, the determination unit 142 determines whether or not the second image IMG2 has been printed normally. Note that the determination unit 142 may determine whether or not the second image IMG2 has been normally printed by determining whether or not the second image IMG2 has been read by the reading unit 106.

  When the second image IMG2 can be printed normally, the ticket issuing device 100 issues the ticket TK from the outlet 170. Specifically, the ticket issuing device 100 performs the following operations.

  When the determination unit 142 determines that the second image IMG2 has been normally printed, the transport control unit 136 transports the ticket TK transported twice to the position G02 to the discharge port 170 (position G07). A control signal for driving the road belt 114 downstream is generated, and the generated control signal is output to the transport unit 110. In addition, the conveyance control unit 136 generates a control signal for opening the second stopper 118 and outputs the generated control signal to the conveyance unit 110. As a result, the ticket TK is conveyed to the discharge port 170. As a result, the driver can receive the ticket TK.

  On the other hand, when the second image IMG2 cannot be printed normally, the ticket issuing device 100 makes an image (hereinafter referred to as “collection mark M”) that disables the use of the ticket TK at the position of the printed second image IMG2. "). In this case, the ticket issuing apparatus 100 specifically performs the following operation.

  When the determination unit 142 determines that the second image IMG2 is not printed normally, the transport control unit 136 sets the transport path belt 114 upstream so as to transport the ticket TK transported to the position G02 to the position G06 again. A control signal to be driven to the side is generated, and the generated control signal is output to the transport unit 110. Thereby, the transport unit 110 transports the ticket TK transported to the position G02 again to the position G06.

  The print control unit 138 controls the current applied to the thermal head 109 in order to print the collection mark M at the position where the second image IMG2 is printed on the ticket TK conveyed again to the position G06. And the generated control signal is output to the printing unit 108. Thereby, the printing unit 108 prints the collection mark M at the printing position of the second image IMG2.

  The transport control unit 136 generates a control signal for driving the transport path belt 114 upstream so that the ticket TK transported twice to the position G06 is transported to the collection unit 180 (position G08), and transports the generated control signal. Output to the unit 110. As a result, the ticket TK is conveyed to the collection unit 180 and collected.

  Note that the ticket issuing device 100 may print the collection mark M at the position of the printed second image IMG2 when the ticket TK is not received by the driver. Whether or not the ticket TK has been received is determined, for example, based on whether or not the ticket TK is held between the rollers of the conveyance exit roller 120.

  The determination unit 142 determines that the ticket TK has not been received when the ticket TK is held between the rollers of the transport exit roller 120 after a predetermined time has elapsed since the ticket TK was issued. The determination unit 142 may determine that the ticket TK has not been received when the ticket TK is held between the rollers of the conveyance exit roller 120 after the vehicle detection unit 104 detects the next vehicle. With the above ticket TK collection operation, the ticket issuing device 100 can normally issue the ticket TK even if the driver forgets to take the ticket TK.

FIG. 8 is a diagram for explaining in detail the printing operation of the ticket issuing device 100 according to an embodiment.
The reading unit 106 reads the first image IMG1 printed on the ticket TK, and outputs the read image data of the first image IMG1 to the decoding unit 132. The decryption unit 132 decrypts the first information from the image data output from the reading unit 106 by using the first public key stored in the storage unit 150 in advance. In the illustrated example, the first information includes information of “original ticket 51001”, which is an example of identification information, and “XX expressway traffic”, which is an example of road information.

  The encryption unit 134 adds the additional information stored in the storage unit 150 to the first information decrypted by the decryption unit 132 to generate second information. The encryption unit 134 encrypts the generated second information into the second image IMG2 using the second secret key stored in the storage unit 150 in advance.

  The print control unit 138 generates a control signal for causing the printing unit 108 to print the second image IMG2 encrypted by the encryption unit 134. The print control unit 138 outputs the generated control signal to the printing unit 108. As a result, the printing unit 108 applies a current corresponding to the control signal to the resistor of the thermal head 109 to heat the thermal head 109. The printing unit 108 prints the second image IMG2 by pressing the heated thermal head 109 against a portion of the thermal layer 14 where the first image IMG1 is printed.

  FIG. 9 is a diagram illustrating an example of a cross section of the ticket TK printed by superimposing the first image IMG1 and the second image IMG2. In the illustrated example, a first image IMG1 is formed on the surface of the heat-sensitive layer 14 with ink that absorbs light having a near-infrared wavelength. Further, in the heat-sensitive layer 14, the portion where the heat-sensitive head 109 is pressed is discolored by heat to form the second image IMG2.

FIG. 10 is a flowchart illustrating an example of processing performed by the ticket issuing device 100 according to an embodiment. For example, the ticket issuing device 100 performs the processing of this flowchart every time a vehicle is detected.
First, the reading unit 106 reads the first image IMG1 by irradiating the ticket TK with light from the first light source (step S100). Next, the reading unit 106 generates image data of the read first image IMG1 (step S102). Next, the decryption unit 132 decrypts the first information from the image data of the first image IMG1 generated by the reading unit 106 using the first public key (step S104). Next, the determination unit 142 determines whether or not a vehicle is detected by the vehicle detection unit 104 (step S106).

  When the vehicle detection unit 104 does not detect a vehicle (step S106; No), the ticket issuing device 100 waits until the vehicle detection unit 104 detects the vehicle. When the vehicle detection unit 104 detects a vehicle (step S106; Yes), the encryption unit 134 acquires the additional information and the second secret key from the storage unit 150 (step S108). The encryption unit 134 generates the second information by adding the acquired additional information to the acquired first information decrypted by the decryption unit 132 (step S110). The encryption unit 134 encrypts the generated second information into the second image IMG2 using the acquired second secret key (step S112).

  The print control unit 138 generates a control signal for causing the printing unit 108 to print the second image IMG2 encrypted by the encryption unit 134, and outputs the generated control signal to the printing unit 108. The second image IMG2 is printed on 108 (step S114).

  The ticket issuing device 100 reads the second image IMG2 printed on the ticket TK, and decodes the second information from the image data of the read second image IMG2 (step S116). The determination unit 142 determines whether or not the second information used when the second image IMG2 is printed matches the second information decoded from the image data of the printed second image IMG2. That is, the determination unit 142 determines whether or not the printing of the second image IMG2 has been successful (step S118).

  If the printing of the second image IMG2 is successful (step S118; Yes), the ticket issuing device 100 issues a ticket TK on which the second image IMG2 is printed (step S120). Thereby, the ticket issuing device 100 ends the processing of this flowchart.

  When the printing of the second image IMG2 is not successful (step S118; No), the ticket issuing apparatus 100 prints the collection mark M on the ticket TK on which the second image IMG2 is printed (step S122). Next, the ticket issuing device 100 conveys the ticket TK printed with the collection mark M to the collection unit 180 and collects it (step S124). Thereby, the ticket issuing apparatus 100 returns to the process of step S100.

Hereinafter, the ticket inspection device 200 will be described with reference to FIGS. 11 and 12.
FIG. 11 is a diagram illustrating an example of the configuration of the ticket inspection device 200 according to an embodiment. FIG. 12 is a diagram illustrating an example of a hardware configuration of the ticket inspection device 200 according to the embodiment. The ticket inspection device 200 includes a communication unit 202, a vehicle detection unit 204, a reading unit 210, a printing unit 240, a transport unit 250, a control unit 270, a storage unit 290, an insertion port 294, and a collection unit 296. With.

  The communication unit 202 communicates with other devices via the network NW. The network NW is a LAN (Local Area Network), a WAN (Wide Area Network), the Internet, or the like.

  The vehicle detection unit 204 is an optical sensor that detects a vehicle, for example. The vehicle detection unit 204 generates a detection signal when detecting a vehicle. Moreover, the vehicle detection part 204 may detect the number plate of a vehicle, the kind (vehicle type) of a vehicle, etc.

  Here, the configuration of the reading unit 210 will be described with reference to FIGS. FIG. 13 is a diagram illustrating an example of the configuration of the reading unit 210. FIG. 14 is a diagram illustrating an example of the configuration of the light receiving unit 220. FIG. 15 is a diagram illustrating another example of the configuration of the light receiving unit 220.

  The reading unit 210 reads an image printed on the ticket TK. The reading unit 210 includes a first light source 212, a second light source 214, a light receiving unit 220, an amplification unit 230, an AD / DA conversion unit 232, and an encoding unit 234. The first light source 212 is, for example, an LED that emits near infrared light IR. The second light source 214 is, for example, an LED that emits visible light VI such as white light. The reading unit 210 is an example of a “second reading unit”.

  The light receiving unit 220 splits and receives the reflected light of the light emitted from the first light source 212 and the second light source 214 described above. In the example of FIG. 14, the light receiving unit 220 includes, for example, a lens 221, a prism 222, a near infrared light transmission filter 223, a near infrared light reception element 224, a visible light transmission filter 225, and a visible light reception element. 226. The near-infrared light receiving element 224 and, for example, the visible light receiving element 226 are, for example, a CCD image sensor or a CMOS (image sensor or the like).

  The reflected light of the near-infrared light IR emitted from the first light source 212 and the reflected light of the visible light VI emitted from the second light source 214 are split by the prism 222 due to the difference in wavelength of each light. Of the light split by the prism 222, the light mainly composed of the near infrared light IR is transmitted through the near infrared light transmission filter 223. Thereby, the near-infrared light receiving element 224 receives only the near-infrared light IR out of the light transmitted through the near-infrared light transmission filter 223.

  On the other hand, the light mainly composed of the visible light VI out of the light separated by the prism 222 passes through the visible light transmission filter 225. Thereby, the visible light receiving element 226 receives only the visible light VI out of the light transmitted through the visible light transmission filter 225. At this time, even when other light (for example, sunlight or room illumination) is mixed with the reflected light of the light emitted from the first light source 212 and the second light source 214 described above, the prism 222 and each transmission light are transmitted. The filter can receive near-infrared light IR and visible light VI, respectively.

Moreover, the structure shown in FIG. 15 may be sufficient as the light-receiving part 220 mentioned above.
In the example of FIG. 15, the light receiving unit 220 includes, for example, a lens 221, a near infrared light receiving element 224, and a visible light receiving element 226. In this configuration, the light receiving unit 220 performs spectroscopy based on the difference in focal length between the near infrared light IR and the visible light VI. For example, since the near-infrared light IR has a longer wavelength than the visible light VI, the focal length after passing through the lens 221 is longer than the visible light VI. On the other hand, the visible light VI has a shorter focal length after passing through the lens 221 than the near-infrared light IR. When receiving the visible light VI, the visible light receiving element 226 is placed between the lens 221 and the near-infrared light receiving element 224 as shown in the figure. When receiving near-infrared light, the visible light receiving element 226 is retracted from the optical axis connecting the lens 221 and the near-infrared light receiving element 224 by a control mechanism (not shown), and the optical axis of the near-infrared light IR. There is no shielding.

  Also, as another type of method, instead of retracting the visible light receiving element 226, it is suitable for light to be received by moving the position to the position of the near infrared light receiving element 224 and changing the position with the same light receiving element. It can also function as an element. By arranging the light receiving elements for each light at these different focal lengths, the same effect as the configuration of FIG. 14 can be obtained.

Here, the description returns to the configuration of the reading unit 210 with reference to FIGS.
The amplifying unit 230 amplifies the light signal (analog signal) received by the light receiving unit 220. Note that the amplification unit 230 may perform noise removal together with amplification.

  The AD / DA converter 232 converts the light signal (analog signal) amplified by the amplifier 230 into a digital signal.

  The encoding unit 234 generates two-dimensional image data from the light signal converted into a digital signal by the AD / DA conversion unit 232. For example, the encoding unit 234 generates image data from the near-infrared light IR signal and the visible light VI signal, respectively. Accordingly, the reading unit 210 can generate image data of the read image of the ticket TK.

  The printing unit 240 includes a thermal head 242 for heating the thermal layer. In the thermal head 242, for example, resistors that generate heat when an electric current is passed are arranged in a line or a matrix. The printing unit 240 controls the current that flows through the resistor of the thermal head 242 in accordance with a control signal output from the printing control unit 276 described later. As a result, the printing unit 240 heats the thermal head 242. The printing unit 240 prints an image by pressing the heated thermal head 242 against the thermal layer 14 of the ticket TK to be printed. The printing unit 240 may print the character CHAR instead of the image.

  The conveyance unit 250 includes a conveyance outlet roller 252, a conveyance path belt 254, and a stopper 256. The transport exit roller 252 includes, for example, two rollers, and the ticket TK is sandwiched between these rollers. The stopper 256 is provided in a section between the printing unit 240 and the collection unit 296 on the conveyance path belt 254. The stopper 256 has a stop plate that rotates in the vertical direction. The vertical direction represents a direction substantially perpendicular to the conveyance surface of the conveyance path belt 254. For example, when the stop plate is rotated downward, the stopper 256 stops the conveyance of the ticket TK performed by the conveyance path belt 254 in the section between the printing unit 240 and the collection unit 296. Hereinafter, the state of the stopper 256 that stops the transport of the ticket TK is referred to as a “closed state”, and the state of the stopper 256 that advances the transport of the ticket TK is referred to as an “open state”. Further, the conveyance outlet roller 252, the conveyance path belt 254, and the stopper 256 are collectively referred to as a “conveyance mechanism”.

  The transport unit 250 drives the transport mechanism according to a control signal from a transport control unit 274 described later. Specifically, the transport unit 250 drives the transport mechanism so as to transport the ticket TK inserted into the insertion port 294 to the reading unit 210. Further, the transport unit 250 drives the transport mechanism so as to transport the ticket TK from the reading unit 210 to the printing unit 240. Further, the transport unit 250 drives the transport mechanism so as to transport the ticket TK from the printing unit 240 to the collection unit 296 for collecting the ticket TK.

  The control unit 270 includes a decoding unit 272, a conveyance control unit 274, a print control unit 276, a communication control unit 278, a light source switching unit 280, and a determination unit 282. Part or all of the functional units of the control unit 270 is a software functional unit that functions when a processor such as a CPU executes a program stored in the storage unit 290. In addition, some or all of the functional units of the control unit 270 may be hardware functional units such as an LSI and an ASIC.

  The decrypting unit 272 decrypts various information from the image data generated by the reading unit 210 using the first public key and the second public key described above. Note that the first public key and the second public key are stored in the storage unit 290 in advance.

  The conveyance control unit 274 generates a control signal for controlling the conveyance unit 250. The conveyance control unit 274 controls the conveyance unit 250 by outputting the generated control signal to the conveyance unit 250.

  The print control unit 276 generates a control signal for controlling the printing unit 240. The print control unit 276 controls the printing unit 240 by outputting the generated control signal to the printing unit 240.

  The communication control unit 278 generates a control signal for controlling the communication unit 202. The communication control unit 278 controls the communication unit 202 by outputting the generated control signal to the communication unit 202.

  The light source switching unit 280 switches the light source irradiated on the ticket TK to either the first light source 212 or the second light source 214. The light source switching unit 280 associates the switched light source with the image data generated by the encoding unit 234.

  The determination unit 282 determines whether various images have been read by the reading unit 210. Further, the determination unit 282 determines whether or not the information is decoded by the decoding unit 272. Further, the determination unit 282 includes identification information included in the first information decoded from the first image IMG1 by the decoding unit 272, and identification information included in the second information decoded from the second image IMG2. It is determined whether or not.

  The storage unit 290 includes a nonvolatile storage medium (non-temporary storage medium) such as a ROM, a flash memory, and an HDD, and a volatile storage medium such as a RAM and a register. The storage unit 290 includes a first public key, a second public key, additional information, extracted identification information, first information, second information, image data, a detection signal, and information indicating whether or not the identification information is used. Memorize etc.

  Here, with reference to FIG. 12, the overall operation of the ticket inspection device 200 will be specifically described with the operations of the transport control unit 274 and the print control unit 276 as main components.

  The transport control unit 274 generates a control signal for driving the transport path belt 254 so as to transport the ticket TK inserted into the insertion port 294 (position G11) to the position G12 on the transport path belt 254, and the generated control signal Is output to the transport unit 250. The position G12 is a position where the reading unit 210 can read an image from the ticket TK. Accordingly, the transport unit 250 transports the ticket TK inserted into the insertion port 294 (position G11) to the position G12 on the transport path belt 254.

  The reading unit 210 reads the first image IMG1 and the second image IMG2 by irradiating the ticket TK at the position G12 with near infrared light IR and visible light VI. The reading unit 210 generates image data of each of the read first image IMG1 and second image IMG2.

  The decrypting unit 272 decrypts the first information from the image data of the first image IMG1 generated by the reading unit 210 using the first public key. In addition, the decryption unit 272 decrypts the second information from the image data of the second image IMG2 generated by the reading unit 210 using the second public key.

  The determination unit 282 determines whether or not the identification information included in the information in the first information and the second information decoded by the decoding unit 272 match. That is, the determination unit 282 determines whether or not the ticket issued by the ticket issuing device 100 has been inserted into the ticket check device 200 that is the device itself. This determines the authenticity of the ticket.

  If the identification information does not match, the communication control unit 278 generates a control signal for controlling the communication unit 202 to notify the outside of warning information indicating fraud or error, and outputs the generated control signal to the communication unit 202. . For example, the communication unit 202 notifies the administrator who manages the ticket authenticity determination system 1 of warning information.

  When the identification information matches, the transport control unit 274 generates a control signal for driving the transport path belt 254 so that the ticket TK transported to the position G12 is transported to the position G13, and the generated control signal is transmitted to the transport unit 250. Output to. The position G12 is a position where the printing unit 240 can print an image in the image printing area of the ticket TK. Thereby, the transport unit 250 transports the ticket TK transported to the position G12 to the position G13.

  The print control unit 276 controls the printing unit 240 so that the collection date and time, information indicating that the identification information of the ticket TK has been used, and the like are printed as images (or characters) on the ticket TK at the position G12. And the generated control signal is output to the printing unit 240. The image is different from the first image IMG1 and the second image IMG2 described above, and is hereinafter referred to as a “third image IMG3”.

  The transport control unit 274 generates a control signal for driving the transport path belt 254 so as to transport the ticket TK transported to the position G13 to the collection unit 296 (position G14), and outputs the generated control signal to the transport unit 250. . At this time, the conveyance control unit 274 generates a control signal for opening the stopper 256 and outputs the generated control signal to the conveyance unit 250. Thereby, the transport unit 250 transports the ticket TK transported to the position G13 to the collection unit 296 (position G14). As a result, the ticket TK is collected by the collection unit 296. With the above operation, the ticket inspection device 200 performs ticket inspection of the ticket TK.

  FIG. 16 is a diagram illustrating an example of images and characters printed on the ticket TK in the ticket authenticity determination system 1 according to the embodiment. In the illustrated example, at the timing A, only the first image IMG1 is printed on the ticket TK. Timing A is, for example, when the ticket TK is stored in the ticket stacker 160 in the ticket issuing device 100.

  At timing B, the first image IMG1 and the characters CHAR are printed on the ticket TK. Timing B is immediately after the printing operation performed before the vehicle is detected in the ticket issuing device 100. At the timing B, the ticket TK does not include, for example, additional information that changes every time a vehicle is detected, such as the vehicle license plate, the vehicle type (vehicle type), and the date and time when the ticket is issued. Things are printed as characters CHAR.

  At timing C, the first image IMG1, the character CHAR, and the second image IMG2 are printed on the ticket TK. Timing C is immediately after a printing operation performed when a vehicle is detected in the ticket issuing device 100. At the timing C, for example, in addition to the character CHAR printed at the timing B, additional information such as the vehicle license plate, the type of vehicle (vehicle type), the date and time when the ticket is issued, etc. is printed as the character CHAR. Is done.

  At the timing D, the first image IMG1, the character CHAR, the second image IMG2, and the collection mark M are printed on the ticket TK. Timing D is immediately after the printing operation performed when the second image IMG2 cannot be printed normally in the ticket issuing device 100.

  Further, at the timing E, the first image IMG1, the character CHAR, the second image IMG2, the collection mark M, the collection date and time, and the identification information of the ticket TK are already used in the ticket TK. A third image IMG3 indicating information is printed. Timing E is immediately after the printing operation performed in the ticket check device 200 when there is no abnormality in the ticket TK inserted by the driver. In the case of the example shown in the drawing, characters indicating the collection date and information indicating that the identification information of the ticket TK has been used are “01/01/2015, 14:30” indicating the collection date and time, and the ticket check device “△△ business establishment, exit” indicating identification information assigned to 200, and “collection” indicating that the identification information of the ticket TK has been used.

  FIG. 17 is a diagram illustrating an example of a correspondence relationship between the determination result of the determination unit 282 and the true / false pattern. The determination unit 282 determines, for example, unauthorized use or forgery of the ticket TK in accordance with the case number described in FIG.

  In the example of FIG. 17, the case S1 is a case where the ticket checking device 200 cannot decrypt the first image IMG1 with the first public key and the second image IMG2 with the second public key. Indicates. The determination unit 282 determines that the ticket TK is counterfeited when the determination corresponding to the case S1 is made.

  In the case of the determination result as in case S1, the communication unit 202 notifies the administrator of the ticket authenticity determination system 1 of warning information that prohibits the vehicle using the ticket TK from passing. Further, the communication unit 202 may notify the above-described administrator of information related to countermeasures against fraud that can be taken in operation. For example, the communication unit 202 sends a notification such as “impossible countermeasures” to the administrator indicating that the countermeasures described above need not be performed.

  Case S2 shows a case where the ticket checking device 200 cannot decrypt the first image IMG1 with the first public key and decrypt the second image IMG2 with the second public key. The determination unit 282 determines that the second image IMG2 copied from the other ticket TK is printed on the ticket TK when the determination corresponding to the case S2 is made, and the ticket TK is forged. Is determined.

  In the case of the determination result as in case S2, the communication unit 202 notifies the administrator of the ticket authenticity determination system 1 of warning information that prohibits the vehicle using the ticket TK from passing. In addition, the communication unit 202 may notify the administrator of “countermeasure not possible” together with the warning information described above.

  Case S3 shows a case where the ticket checking device 200 can decrypt the first image IMG1 with the first public key and cannot decrypt the second image IMG2 with the second public key. When the determination unit 282 makes a determination corresponding to case S3, the ticket TK stored in advance in the ticket stacker 160 of the ticket issuing device 100 flows out to the outside, and the second secret key is used for the outflowed ticket TK. It is determined that an image different from the encrypted second image IMG2 is printed. As a result, the determination unit 282 determines that the ticket TK has been forged.

  In the case of the determination result as in case S3, the communication unit 202 notifies the administrator of the ticket authenticity determination system 1 of warning information that makes the vehicle using the ticket TK impassable. In addition, the communication unit 202 may send a notification that prompts the administrator to investigate the method of leaking the ticket or prevent the recurrence of the leak.

  Case S4 is a case where the ticket checking device 200 can decrypt the first image IMG1 using the first public key and the second image IMG2 using the second public key. A case where the identification information extracted from each of the first information and the second information does not match is shown. When the determination unit 282 makes a determination corresponding to case S4, the ticket TK stored in advance in the ticket stacker 160 of the ticket issuing device 100 flows out to the outside, and the second ticket TK copied from the other ticket TK to the outflowed ticket TK. The image IMG2 is determined to be printed. As a result, the determination unit 282 determines that the ticket TK has been forged.

  In the case of the determination result as in the case S4, as in the case of the case S3 described above, the communication unit 202 causes the administrator of the ticket authenticity determination system 1 to pass the vehicle using the ticket TK. Notify warning information. In addition, the communication unit 202 may send a notification that prompts the administrator to investigate the method of leaking the ticket or prevent the recurrence of the leak.

  The determination unit 282 determines that the ticket TK is genuine when the determination unit 282 performs determination that does not correspond to the cases S1 to S4 described above.

  Note that, when the determination unit 282 performs determination corresponding to case S5 to case S7, based on the extracted identification information and the table on the presence or absence of use of the identification information stored in the storage unit 290, the determination unit 282 The authenticity of the ticket TK may be determined.

  Case S5 to Case S7 are cases where the ticket checking device 200 can decrypt the first image IMG1 with the first public key and the second image IMG2 with the second public key. The case is shown where the identification information extracted from the first information and the second information matches.

  FIG. 18 is a diagram illustrating an example of a table regarding whether or not identification information is used. In the illustrated example, the identification information is associated with the second information encrypted in the ticket issuing device 100 and the second information decrypted in the ticket checking device 200. The second information encrypted in the ticket issuing device 100 includes, for example, information on a toll gate where the ticket issuing device 100 is provided, information on a traveling lane, and a toll gate where the ticket issuing device 100 is provided. A number (serial number) that is incremented each time, a license plate of the vehicle, and usage state information indicating whether or not the ticket TK has been issued. The second information decrypted in the ticket checking device 200 includes, for example, information on a toll gate where the ticket checking device 200 is provided, information on a traveling lane, and a toll gate where the ticket checking device 200 is provided. It includes a number (serial number) that is incremented each time it passes, a vehicle number plate, and usage state information indicating whether or not the ticket TK has been collected.

  In the ticket authenticity determination system 1, for example, when the ticket TK issued by the ticket issuing device 100 is collected without any abnormality in the ticket checking device 200, the ticket checking device 200 uses the identification information of the ticket TK. Information indicating that the identification has been completed is associated, and the associated information is stored in the storage unit 290 as a table regarding whether or not the identification information is used.

  When the determination unit 282 makes a determination corresponding to cases S5 to S7, the ticket issuing device 100 does not associate the second information further, and the ticket check device 200 associates the second information. Determine whether it was done. For example, the determination unit 282 reuses the used ticket TK when the ticket information issuing apparatus 100 does not associate the second information and the ticket checking apparatus 200 associates the second information. The identification information of the ticket TK that may be reused is listed. The communication unit 202 notifies the administrator of the ticket authenticity determination system 1 of the listed identification information. Accordingly, the administrator can perform an operation in which all the tickets TK having the listed identification information are disabled.

  FIG. 19 is a flowchart illustrating an example of processing performed by the ticket inspection device 200 according to an embodiment. For example, the ticket checking device 200 performs the processing of this flowchart every time the ticket TK is inserted into the insertion slot 294.

  First, the reading unit 210 reads the first image IMG1 by irradiating the ticket TK inserted from the insertion port 294 with the light of the first light source 212 (step S200). Next, the reading unit 210 reads the second image IMG2 by irradiating the ticket TK inserted from the insertion port 294 with the light from the second light source 214 (step S202). Note that the reading unit 210 may perform the process of step S202 first and the process of step S200 later.

  The determination unit 282 determines whether or not the first information is decoded from the image data of the first image IMG1 by the decoding unit 272 (step S204). When the first information is not decoded from the image data of the first image IMG1 (step S204), the determination unit 282 determines that the ticket TK inserted into the insertion port 294 has been forged (step S206). . Next, the communication unit 202 notifies the warning information to an external device (step S208).

  When the first information is decoded from the image data of the first image IMG1 (step S204), the determination unit 282 determines whether the second information is decoded from the image data of the second image IMG2 by the decoding unit 272. Is determined (step S210). When the second information is not decoded from the image data of the second image IMG2 (Step S210; No), the determination unit 282 determines that the ticket TK inserted into the insertion port 294 has been forged (Step S210). S206). Next, the communication unit 202 notifies the warning information to an external device (step S208).

  When the second information is decoded from the image data of the second image IMG2 (step S210; Yes), the determination unit 282 determines whether the identification information of the first information matches the identification information of the second information. It is determined whether or not (step S212). When the identification information of the first information does not match the identification information of the second information (step S212; No), the determination unit 282 determines that the ticket TK inserted into the insertion port 294 has been forged. (Step S206). Next, the communication unit 202 notifies the warning information to an external device (step S208).

  When the identification information of the first information matches the identification information of the second information (step S212; Yes), the determination unit 282 determines whether the identification information is the same as the identification information of the ticket TK that has been issued. Determination is made (step S214). When the identification information is different from the identification information of the issued ticket TK (step S214; No), the determination unit 282 determines that the ticket TK inserted into the insertion port 294 has been forged (step S206). . Next, the communication unit 202 notifies the warning information to an external device (step S208).

  When the identification information is the same as the identification information of the ticket TK that has been issued (step S214; Yes), the determination unit 282 determines that the ticket TK inserted into the insertion port 294 is genuine (step S216). After performing the process of step S208 or the process of step S216, the ticket inspection device 200 transports and collects the ticket TK to the collection unit 296 (step S218). As a result, the ticket inspection device 200 ends the processing of this flowchart.

  According to the ticket authenticity determination system 1 of at least one embodiment described above, the first image IMG1 is read by irradiating the ticket TK on which the first image IMG1 is printed with light having a wavelength in the infrared region. The first information is decrypted from the image data of the read first image IMG1, and the second information obtained by combining the decrypted first information and the additional information is encrypted into the second image IMG2 and encrypted. The ticket TK is heated and printed so that the second image IMG2 is superimposed on part or all of the first image IMG1.

  Further, by irradiating the ticket TK with light having a wavelength in the infrared region corresponding to the first image IMG1, the first information is read from the first image IMG1 printed on the ticket TK, and the second information By irradiating the ticket TK with light having a wavelength in the visible region corresponding to the image, the second information is read from the second image IMG2 printed on the ticket TK, and the read first information and second information are Based on this, the authenticity of the ticket TK is determined.

  As a result, the ticket authenticity determination system 1 can improve the accuracy of authenticating the ticket TK by reading the first image IMG1 and the second image IMG2 using light of different wavelengths.

  Further, according to the ticket authenticity determination system 1 of one embodiment, the common identification information is included in the first information and the second information, thereby further improving the accuracy of determining the authenticity of the ticket TK. be able to.

  Further, according to the ticket authenticity determination system 1 of the embodiment, it is possible to determine whether the ticket TK is falsified by encrypting the first information and the second information into an image using an encryption key. As a result, the ticket authenticity determination system 1 can further improve the authenticity determination accuracy of the ticket TK.

In addition, according to the ticket authenticity determination system 1 of one embodiment, it is possible to determine the unauthorized use of the ticket TK by storing the identification information assigned to the used ticket TK. As a result, the ticket authenticity determination system 1 can further improve the authenticity determination accuracy of the ticket TK.
Even when a forged ticket is created by some method, the identification information of the ticket TK that is the copy source of the forged ticket can be prohibited by managing the identification information. As a result, the ticket authenticity determination system 1 can reduce the merit associated with the creation of a counterfeit ticket and can suppress counterfeiting.

  In addition, according to the ticket issuing apparatus 100 of the embodiment, the first information IMG1 and the second image IMG2 with different light absorption wavelengths are printed on the ticket TK so as to overlap each other. It is possible to make reading of the information of 2 difficult. As a result, the ticket issuing device 100 can prevent forgery of the ticket TK.

  Further, according to the ticket authenticity determination system 1 of one embodiment, the surface (the heat-sensitive layer 14) of the ticket TK on which the first image IMG1 is printed is a coat layer. It is possible to make it difficult to superimpose and print the first image IMG1 and the second image IMG2 having different light absorption wavelengths depending on the method.

  Further, according to the ticket inspection device 200 of one embodiment, when two lights having different wavelengths are irradiated onto the ticket TK, the reflected light of each light can be received using the same light receiving unit 220. As a result, the ticket inspection device 200 can simplify the hardware configuration.

  Although several embodiments of the present invention have been described, these embodiments are presented by way of example and are not intended to limit the scope of the invention. These embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the spirit of the invention. These embodiments and their modifications are included in the scope and gist of the invention, and are also included in the invention described in the claims and the equivalents thereof.

DESCRIPTION OF SYMBOLS 1 ... Ticket authenticity determination system, TK ... Ticket, 12 ... Paper layer, 14 ... Heat sensitive layer, 16 ... Leuco dye, 18 ... Developer, 100 ... Ticket ticketing apparatus, 102 ... Communication part, 104 ... Vehicle detection part, DESCRIPTION OF SYMBOLS 106 ... Reading part, 108 ... Printing part, 109 ... Thermal head, 110 ... Conveyance part, 130 ... Control part, 132 ... Decryption part, 134 ... Encryption part, 136 ... Conveyance control part, 138 ... Print control part, 140 ... Communication Control unit, 142 ... determination unit, 150 ... storage unit, 160 ... ticket stacker, 170 ... discharge port, 180 ... collection unit, 200 ... ticket inspection device, 202 ... communication unit, 204 ... vehicle detection unit, 210 ... reading unit, 212: First light source, 214: Second light source, 220: Light receiving unit, 221 ... Lens, 222 ... Prism, 223 ... Near infrared light transmission filter, 224 ... Near infrared light receiving element, 225 ... Visible Transmission filter, 226... Visible light receiving element, 230... Amplification unit, 232... AD / DA conversion unit, 234... Encoding unit, 240. Transport control unit, 276 ... print control unit, 278 ... communication control unit, 280 ... light source switching unit, 282 ... determination unit, 290 ... storage unit, 294 ... insertion port, 296 ... collection unit, IMG1 ... first image, IMG2 ... second image

Claims (10)

A first reading unit that reads the first information from a first image that is a first image printed on a ticket and that is encrypted first information including identification information assigned to each ticket;
The second image obtained by encrypting the second information including the identification information read by the first reading unit by a method different from the first image printing method is a part of the first image or A printing unit that superimposes on all and prints on the ticket;
By irradiating the ticket with light of a first wavelength, reading the first information from the first image printed on the ticket, and irradiating the ticket with light of a second wavelength, A second reading unit that reads the second information from a second image printed on the ticket by the printing unit;
A determination unit that determines the authenticity of the ticket based on the first information and the second information read by the second reading unit;
A ticket authenticity determination system comprising: The first image is printed on the ticket with a paint that absorbs light having a wavelength outside the visible range;
The printing unit prints the second image on the ticket by a method of absorbing light having a wavelength in a visible region;
The ticket authenticity determination system according to claim 1. The ticket is colored according to the heat applied,
The first image is printed on the ticket with ink that absorbs light having a wavelength outside the visible range;
The printing unit prints the second image by heating the ticket according to the second image;
The ticket authenticity determination system according to claim 1. The determination unit determines whether or not the first information is read by the second reading unit, and determines whether or not the second information is read by the second reading unit. Then, the authenticity of the ticket is determined.
The ticket authenticity determination system according to claim 1. The determination unit is based on identification information included in the first information read by the second reading unit and identification information included in the second information read by the second reading unit, Determining the authenticity of the ticket;
The ticket authenticity determination system according to claim 1. The determination unit is one or both of identification information included in the first information read by the second reading unit and identification information included in the second information read by the second reading unit. And the authenticity of the ticket is determined based on the identification information assigned to each ticket.
The ticket authenticity determination system according to claim 1. A first reading unit that reads the identification information from a first image that is a first image printed on a ticket and that is encrypted first information including identification information assigned to each ticket;
A printing unit that prints on the ticket a second image obtained by encrypting the second information including the identification information read by the first reading unit, overlaid on a part or all of the first image; ,
Ticket issuing device comprising: By irradiating the ticket with light having a first wavelength corresponding to the first image obtained by encrypting the first information including identification information assigned to each ticket, the first image printed on the ticket Reading the first information;
By irradiating the ticket with light having a second wavelength corresponding to the second image obtained by encrypting the second information including the identification information, the second image printed on the ticket can be A second reading unit for reading information;
A determination unit that determines the authenticity of the ticket based on the first information and the second information read by the second reading unit;
A ticket check device comprising: Reading the identification information from a first image printed on a ticket, wherein the first image is encrypted first information including identification information assigned to each ticket;
The ticket is formed by superimposing a second image obtained by encrypting the second information including the read identification information on a part or all of the first image by a method different from the printing method of the first image. Print on
By irradiating the ticket with light having a first wavelength corresponding to the first image, the first information is read from the first image printed on the ticket and corresponds to the second image. The second information is read from the second image printed on the ticket by irradiating the ticket with the light having the second wavelength.
The authenticity of the ticket is determined based on the read first information and second information.
Ticket authenticity determination method. A first image obtained by encrypting the first information including the identification information is printed,
The second image obtained by encrypting the second information including the same identification information as the identification information included in the first image is printed superimposed on a part or all of the first image.
ticket.

Images