JP2019061363A - Access authentication system - Google Patents

Abstract

To provide an access authentication system for determining whether or not access is the access by a user near an electronic signboard when the user accesses to a server device which performs access authentication.SOLUTION: A system includes an electronic signboard and a server device. The electronic signboard has means for storing a generation rule about a two-dimensional code which is the two-dimensional code including an access method to the server device and of which the access method is changed for each predetermined period, and means for displaying the two-dimensional code generated according to the generation rule. The server device has: means for storing the generation rule; means for receiving the access by the user terminal on the basis of the access method included in the two-dimensional code; and means for referring to the stored generation rule and determining whether or not the access is performed within the predetermined period after the time at which the two-dimensional code is displayed on the electronic signboard.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a technology for authenticating access by a user in the vicinity of an electronic signboard.

  An electronic signboard is an information / advertising medium that uses digital technology to display images and characters with a flat panel display, a projector, etc., and uses a storage device to switch display contents and display moving images, etc. Video advertising can be developed.

  In recent years, a large number of electronic signboards have come to be seen in towns, but research and development are actively conducted on electronic signboards having interactivity, beyond the area of a simple display device. For example, Patent Document 1 proposes a technology related to an electronic poster system that allows the public to easily use an electronic poster installed on a street or the like.

  On the other hand, with the diversification of user needs, while services are required at any time and place, in recent years, services provided via communication networks have become widespread. In such services, since the authentication of the legitimacy of the service user is important, research and development on user authentication technology is actively conducted. For example, in patent document 2, in O2O (on-line to on-line) site authentication method using an authentication image such as QR code (registered trademark), a technique for preventing fraudulent acts by copying an authentication image is proposed. There is.

Patent No. 3745650 gazette JP, 2017-76254, A

  If you want to target a user in the vicinity of an electronic signboard to provide a service with interactivity, when the user accesses the service providing device, the access is an access by the user near the electronic signboard It must be determined whether or not.

  However, in the above-described conventional technology, when the service providing apparatus is accessed by the user, there is a problem that it can not be determined whether the access is by the user in the vicinity of the electronic signboard.

  Therefore, in the present invention, in view of the above problems, when there is an access from a user to a server apparatus that performs access authentication, an access authentication system that determines whether the access is an access by a user near an electronic signboard. Intended to provide.

  One form of the access authentication system to be disclosed is an access authentication system including an electronic signboard and a server device, wherein the electronic signboard is a two-dimensional code including an access method to the server device, and the electronic signboard is A second storage unit configured to display a two-dimensional code display unit configured to display the two-dimensional code generated according to a generation rule for a two-dimensional code whose access method is to be changed, the server device storing the generation rule; An access receiving unit for receiving an access by a user terminal based on the access method included in the two-dimensional code; and the access based on the two-dimensional code with reference to the generation rule stored in the second storage unit. An access suitability judgment hand that judges whether or not it has been performed within a predetermined period from the time displayed on the electronic signboard And processing execution means for executing predetermined information processing when it is determined that the access is performed within a predetermined period from the time when the two-dimensional code is displayed on the electronic signboard. I assume.

  The disclosed access authentication system can determine, when the server apparatus performing access authentication has access from a user, whether the access is access by a user in the vicinity of the electronic sign.

BRIEF DESCRIPTION OF THE DRAWINGS It is a figure explaining the outline | summary of the access authentication system which concerns on this Embodiment. It is a functional block diagram of the access authentication system concerning this embodiment. It is a figure which shows an example of the display by the two-dimensional code display means based on this Embodiment. It is a figure which shows an example of the display by the two-dimensional code display means based on this Embodiment. It is a figure which shows an example of the display by the two-dimensional code display means based on this Embodiment. It is a figure which shows the hardware structural example of the electronic signboard which concerns on this Embodiment. It is a figure showing the example of hardware constitutions of the server apparatus concerning this embodiment. It is a flowchart which shows the flow of the example of a process by the electronic signboard which concerns on this Embodiment. It is a flowchart which shows the flow of the process example by the server apparatus which concerns on this Embodiment.

DETAILED DESCRIPTION OF THE INVENTION Embodiments of the present invention will be described with reference to the drawings.
(Operation principle of the access authentication system according to the present embodiment)

  The operation principle of the access authentication system (hereinafter, simply referred to as "the present system") 100 according to the present embodiment will be described with reference to Figs. FIG. 1 is a diagram for explaining the outline of the present system 100. As shown in FIG.

  As shown in FIG. 1, the present system 100 includes an electronic signboard 110 and a server device 210, and at least the server device 210 is connected to a user terminal 360 operated by a user via a communication network 380. The electronic signboard 110 may be connected to the server device 210 and the user terminal 360 via the communication network 380, or may be a so-called stand-alone form not connected to these.

  The electronic signboard 110 displays the two-dimensional code 310 in accordance with a predetermined rule 330 for changing the information to be displayed in a short time in a manner capable of specifying the display time. Here, the two-dimensional code 310 is, for example, a QR code (registered trademark), which is information including access information to the server apparatus 210 and having a predetermined usable period.

  A user who is in the vicinity of the electronic billboard 110 accesses the server device 210 using the two-dimensional code 310 displayed on the electronic billboard 110 (for example, using software having the function of a two-dimensional code reader) .

  The server apparatus 210 determines whether or not the two-dimensional code 310 used for the access 370 by the user is displayed within the predetermined period after being displayed on the electronic signboard 110 with reference to the predetermined rule 330 to be shared. Do. If the server device 210 determines that the two-dimensional code 310 has been used within a predetermined period, it determines that the user access 370 is an appropriate access, and executes predetermined information processing. That is, by setting the period in which the two-dimensional code 310 displayed on the electronic billboard 110 can be used to a short period and sharing the rule 330 between the electronic billboard 110 and the server apparatus 210, only the user in the vicinity of the electronic billboard 110 Provides an environment in which the server device 210 can be accessed using the two-dimensional code 310.

  By doing this, the present system 100 confirms that the accessed person is a person in the vicinity of the digital signage (digital signage), and as a result, enables various effective operations. Further, the present system 100 can prevent secondary use (use by an indirect acquirer) of the access key 310.

  FIG. 2 is a functional block diagram of the present system 100. As shown in FIG. As shown in FIG. 2, the present system 100 includes an electronic signboard 110 and a server device 210, and the electronic signboard 110 includes a first storage unit 120 and a two-dimensional code display unit 130.

  The first storage unit 120 stores a generation rule 330 for the two-dimensional code 310. The two-dimensional code 310 is information that includes an access method 320 to the server device 210 and is changed at predetermined intervals. The generation rule 330 is information specifying the display time of the two-dimensional code 310 and the period during which the two-dimensional code 310 is displayed, and knows when “one” two-dimensional code 310 is displayed on the electronic signboard 110. It is information that can be done. The access method 320 is information indicating a predetermined location on the server device 210, and is, for example, a URL (Uniform Resource Locator).

  The two-dimensional code display means 130 generates the two-dimensional code 310 according to the generation rule 330, and displays the generated two-dimensional code 310 on the electronic signboard 110. The two-dimensional code display means 130 may be configured to generate and display one two-dimensional code 310, and generate and display a plurality of two-dimensional codes (one set of two-dimensional codes 350) displayed simultaneously. It may be a form.

  As shown in FIG. 3A, for example, the two-dimensional code display means 130 generates three two-dimensional codes 310 as one set of two-dimensional codes 350, and one set of two-dimensional codes on the electronic signboard 110. Display 350 simultaneously.

  The two-dimensional code display means 130 displays a display 340 representing a period until the two-dimensional code 310 displayed on the electronic signboard 110 is changed based on the generation rule 330 (a period in which the two-dimensional code 310 can be used). Do.

  As shown in FIG. 3A, the two-dimensional code display means 130 is configured to display a period 340 until the two-dimensional code 310 is changed by a bar graph at the lower part of the two-dimensional code 310. good. In addition, as shown in FIG. 4, the two-dimensional code display means 130 may be configured to display a period until the two-dimensional code 310 is changed in a ring graph around the two-dimensional code 310. .

  As shown in FIG. 5, the two-dimensional code display means 130 performs a display to hide the two-dimensional code 310 itself and make it finally unusable according to the period until the two-dimensional code 310 is changed. It may be a form. In FIG. 5, the two-dimensional code display means 130 causes the state of (a) to transition to the state of (b) as time passes.

  As shown in FIG. 2, the server apparatus 210 includes a second storage unit 220, an access receiving unit 230, an access suitability determination unit 240, an access number determination unit 250, and a process execution unit 260.

  The second storage unit 220 stores a generation rule 330 for the two-dimensional code 310. Note that it is not necessary that all the information stored in the second storage means 220 and all the information stored in the first storage means 120 match.

  The access receiving unit 230 receives an access 370 by the user terminal 360 based on the access method 320 included in the two-dimensional code 310 displayed by the two-dimensional code display unit 130. Access 370 occurs via communication network 380, which may be wired or wireless.

  The access suitability determination unit 240 refers to the generation rule 330 stored in the second storage unit 220, and the access 370 is performed for a predetermined period from the time when the two-dimensional code 310 used for the access 370 is displayed on the electronic signboard 110. Determine if it was done within. When the access 370 is performed within a predetermined period from the time when the two-dimensional code 310 used for the access 370 is displayed on the electronic signboard 110, the access suitability determination unit 240 is an appropriate access. It is determined that

  The number of times of access determination means 250 determines that the number of times of determination that the two-dimensional code 310 has been performed within the predetermined period from the time when the two-dimensional code 310 is displayed for the access 370 based on the two-dimensional code 310 is one. It is determined whether the number is equal to or less than the number. This is to prevent unauthorized access.

  For the access 370 based on any two-dimensional code 310 included in one set of two-dimensional codes 350, the access number determination unit 250 is within a predetermined period from the time when the one set of two-dimensional codes 350 is displayed on the electronic signboard 110. It is determined whether or not the number of times determined to have been made is less than or equal to a predetermined number. This is to prevent unauthorized access.

  When the access suitability determination means 240 determines that the access 370 is an appropriate access, the process execution means 260 executes predetermined information processing. The predetermined information processing may be processing of notifying another device 390 connected via the communication network 380 of an instruction to control the other device 390. The other device 390 is a concept including the electronic signboard 110 and the user terminal 360, and indicates that the other device 390 is a device different from the server device 210.

  The process execution unit 260 may execute predetermined information processing when the access number determination unit 250 determines that the number is equal to or less than a predetermined number. As shown in FIG. 3, when there is an access 370 based on a pair of two-dimensional codes 350, the process execution means 260 causes a control instruction to display "correct" and "incorrect" on the electronic signboard 110. By notifying, it is possible to realize a quiz that the user can participate.

By performing the process as described above, when the access authentication system 100 receives an access 370 from the user to the server apparatus 210 that performs access authentication, the access 370 is an access 370 by the user near the electronic signboard 110. It can be determined whether there is any.
(Hardware configuration of the electronic signboard according to the present embodiment)

  A hardware configuration example of the electronic signboard 110 will be described with reference to FIG. FIG. 6 is a diagram showing an example of the hardware configuration of the electronic signboard 110. As shown in FIG. As illustrated in FIG. 6, the electronic signboard 110 includes a central processing unit (CPU) 410, a read only memory (ROM) 420, a random access memory (RAM) 430, an auxiliary storage device 440, a communication I / F 450, and an input device 460. , An output device (display device) 470, and a recording medium I / F 480.

  The CPU 410 is a device that executes a program stored in the ROM 420, performs arithmetic processing on data developed (loaded) in the RAM 430 in accordance with a command of the program, and controls the entire electronic billboard 110. The ROM 420 stores programs and data that the CPU 410 executes. When the CPU 410 executes a program stored in the ROM 420, the RAM 430 develops (loads) a program or data to be executed, and temporarily holds operation data during operation.

  The auxiliary storage device 440 is a device that stores an operating system (OS) that is basic software, an application program according to the present embodiment, and the like together with related data, and, for example, an HDD (Hard Disc Drive), a flash memory, etc. It is. The auxiliary storage device 440 includes a first storage unit 120.

  The communication I / F 450 is an interface for connecting to a communication network 380 such as a wired / wireless LAN (Local Area Network), the Internet, etc., and exchanging data with other devices that provide a communication function. When the electronic signboard 110 is in a stand-alone state, the electronic signboard 110 may not have the communication I / F 450.

The input device 460 is a device for inputting data to the electronic signboard 110 such as a keyboard or a touch panel. The output device 470 is a display device including an LCD (Liquid Crystal Display) or the like, and functions as a user interface when the user uses the function of the electronic signboard 110 or when performing various settings.
The recording medium I / F 480 is an interface for transmitting and receiving data to and from the recording medium 490 such as a CD-ROM, a DVD-ROM, and a USB memory.

Each unit included in the electronic signboard 110 may be realized by the CPU 410 executing a program corresponding to each unit stored in the ROM 420 or the auxiliary storage device 440. In addition, each means included in the electronic signboard 110 may be realized as a process in which the process related to each means is implemented as hardware. In addition, the electronic signboard 110 may be read a program according to the present invention from an external server apparatus via the communication I / F 450, or may be read a program according to the present invention from the recording medium 490 via the recording medium I / F 480. The program may be executed on a computer.
(Hardware configuration of server apparatus according to the present embodiment)

  A hardware configuration example of the server apparatus 210 will be described using FIG. 7. FIG. 7 is a diagram showing an example of the hardware configuration of the server apparatus 210. As shown in FIG. As illustrated in FIG. 7, the server device 210 includes a CPU 510, a ROM 520, a RAM 530, an auxiliary storage device 540, a communication I / F 550, an input device 560, an output device (display device) 570, and a recording medium I / F 580.

  The CPU 510 is a device that executes a program stored in the ROM 520, performs arithmetic processing on data expanded (loaded) in the RAM 530 in accordance with the instruction of the program, and controls the entire server device 210. The ROM 520 stores programs and data that the CPU 510 executes. When the CPU 510 executes a program stored in the ROM 520, the RAM 530 develops (loads) a program or data to be executed, and temporarily holds operation data during operation.

  The auxiliary storage device 540 is a device that stores an OS that is basic software, an application program according to the present embodiment, and the like together with related data, and is, for example, an HDD or a flash memory. The auxiliary storage unit 550 includes a second storage unit 220.

  The communication I / F 550 is an interface for connecting to a communication network 380 such as a wired / wireless LAN, the Internet, etc., and exchanging data with another device 390 that provides a communication function.

The input device 560 is a device for performing data input to the server device 210, such as a keyboard and a touch panel. The output device 570 is a display device including an LCD or the like, and functions as a user interface when the user uses the function of the server device 210 or when performing various settings.
The recording medium I / F 580 is an interface for transmitting and receiving data to and from the recording medium 590 such as a CD-ROM, a DVD-ROM, and a USB memory.

Each unit included in the server device 210 may be realized by the CPU 510 executing a program corresponding to each unit stored in the ROM 520 or the auxiliary storage device 540. In addition, each means included in the server device 210 may be realized as a form in which the process related to each means is realized as hardware. Also, the server apparatus 210 may read a program according to the present invention from an external server apparatus via the communication I / F 550 or read a program according to the present invention from the recording medium 590 via the recording medium I / F 580. The program may be executed on a computer.
(Example of processing by the access authentication system according to the present embodiment)
(1) Example of Processing by Electronic Signboard 110 An example of processing by the electronic signboard 110 will be described using FIG. 8. FIG. 8 is a flowchart showing a flow of an example of processing by the electronic signboard 110.

  In S10, the two-dimensional code display means 130 generates one two-dimensional code 310, 350 according to the generation rule 330. The two-dimensional code display means 130 may be configured to generate one two-dimensional code 310 or may be configured to generate a pair of two-dimensional codes 350 displayed simultaneously.

  The two-dimensional code 310 is information that includes an access method 320 to the server device 210 and is changed at predetermined intervals. The generation rule 330 is information specifying the display time of the two-dimensional code 310 and the period during which the two-dimensional code 310 is displayed, and knows when “one” two-dimensional code 310 is displayed on the electronic signboard 110. It is information that can be done. The access method 320 is information indicating a predetermined place on the server device 210, and is, for example, a URL.

  At S20, the two-dimensional code display means 130 displays the two-dimensional code 310, 350 generated at S10 on the electronic signboard 110. As shown in FIG. 1, the two-dimensional code display means 130 may be configured to generate and display one two-dimensional code 310.

  As shown in FIG. 3A, the two-dimensional code display means 130 generates three two-dimensional codes 310 as one set of two-dimensional codes 350, and sets one set of two-dimensional codes 350 on the electronic signboard 110. It may be displayed simultaneously.

  Note that the two-dimensional code display means 130 displays a display 340 indicating a period until the two-dimensional code 310 displayed on the electronic signboard 110 is changed based on the generation rule 330.

  As shown in FIG. 3A, the two-dimensional code display means 130 is configured to perform display 340 at the bottom of the two-dimensional code 310, which represents a period until the one two-dimensional code 310 is changed by a bar graph. It is good. Further, as shown in FIG. 4, the two-dimensional code display means 130 is a form that displays a period until the one two-dimensional code 310 is changed in a ring graph around the two-dimensional code 310. Also good.

  As shown in FIG. 5, the two-dimensional code display means 130 hides the two-dimensional code 310 itself according to the period until the two-dimensional code 310 is changed, and makes it finally unavailable. May be performed. In FIG. 5, the two-dimensional code display means 130 causes the state of (a) to transition to the state of (b) as time passes.

  When a predetermined period has elapsed from the display start time of the two-dimensional code 310 displayed on the electronic signboard 110 in S30 (Yes in S30), the process proceeds to S10, and the two-dimensional code display means 130 generates in S10. Another two-dimensional code 310 is generated according to the rule 330.

If the predetermined period has not elapsed from the display start time of the two-dimensional code 310 displayed on the electronic billboard 110 at S30 (No at S30), the process proceeds to S20, and the two-dimensional code 310 generated at S10. The display of is continued.
(2) Example of Processing by Server Apparatus 210 An example of processing by the server apparatus 210 will be described with reference to FIG. FIG. 9 is a flowchart showing an exemplary flow of processing by the server apparatus 210.

  In S110, the access acceptance unit 230 accepts the access 370 by the user terminal 360 based on the access method 320 included in the two-dimensional code 310 displayed in S20.

  The access suitability determination unit 240 refers to the generation rule 330 stored in the second storage unit 220 in S120, and displays the two-dimensional code 310 used for the access 370 in the electronic signboard 110 for the access 370 received in S110. It is determined whether or not it has been performed within a predetermined period of time from the time that has been set. When the access 370 is performed within a predetermined period from the time when the two-dimensional code 310 used for the access 370 is displayed on the electronic signboard 110, the access suitability determination unit 240 is an appropriate access. It is determined that

  The number of times the access number determination unit 250 determines in S130 that the access 370 based on the two-dimensional code 310 is performed within a predetermined period from the time when the two-dimensional code 310 is displayed on the electronic signboard 110 It is determined whether or not the predetermined number of times or less.

  In addition, the access number determination means 250 determines the access 370 based on any two-dimensional code 310 included in one set of two-dimensional code 350 from the time when the one set of two-dimensional code 350 is displayed on the electronic signboard 110. It is determined whether the number of times determined to be performed within the period is equal to or less than a predetermined number.

  When it is determined in S120 that the access 370 is an appropriate access in S120, the process execution unit 260 executes predetermined information processing. The predetermined information processing may be processing of notifying another device 390 connected via the communication network 380 of an instruction to control the other device 390.

  The process execution unit 260 may execute predetermined information processing when it is determined in S130 that the number of times is equal to or less than the predetermined number. As shown in FIG. 3, when there is an access 370 based on a pair of two-dimensional codes 350, the process execution means 260 causes a control instruction to display "correct" and "incorrect" on the electronic signboard 110. By notifying, it is possible to realize a quiz that the user can participate.

  Even when there is no information processing in S130, the information processing of the server device 210 (the present system 100) is established. That is, the information processing in S130 may not be performed.

  By performing the process as described above, when the access authentication system 100 receives an access 370 from the user to the server apparatus 210 that performs access authentication, the access 370 is an access 370 by the user near the electronic signboard 110. It can be determined whether there is any.

  As mentioned above, although the embodiment of the present invention was explained in full detail, the present invention is not limited to the specific embodiment concerned, and various modifications can be made within the scope of the subject matter of the present invention described in the claims.・ Change is possible.

100 access authentication system 110 electronic signboard 120 first storage means 130 two-dimensional code display means 210 server device 220 second storage means 230 access acceptance means 240 access suitability determination means 250 access number determination means 260 processing execution means 310 two-dimensional code 320 server Method of accessing device 330 Generation rule of two-dimensional code 340 Display representing period until two-dimensional code is changed 350 one set of two-dimensional code 360 user terminal 370 access by user terminal 380 communication network 390 other devices 410, 510 CPU
420, 520 ROM
430, 530 RAM
440, 540 Auxiliary storage device 450, 550 Communication interface 460, 560 Input device 470, 570 Output device (display device)
480, 580 recording medium interface 490, 590 recording medium

One form of the access authentication system to be disclosed is an access authentication system including an electronic signboard and a server device, wherein the electronic signboard is a two-dimensional code including an access method to the server device, and the electronic signboard is A second storage unit configured to display a two-dimensional code display unit configured to display the two-dimensional code generated according to a generation rule for a two-dimensional code whose access method is to be changed, the server device storing the generation rule; An access receiving unit for receiving an access by a user terminal based on the access method included in the two-dimensional code; and the access based on the two-dimensional code with reference to the generation rule stored in the second storage unit. An access suitability judgment hand that judges whether or not it has been performed within a predetermined period from the time displayed on the electronic signboard If, when the access is determined that the two-dimensional code is performed within a predetermined time period from the time displayed on the electronic signboard, possess a process execution means for executing predetermined information processing, wherein the The two-dimensional code display means is characterized by performing display indicating a period until the two-dimensional code displayed on the electronic signboard is changed based on the generation rule .

Claims (16)

An access authentication system including an electronic signboard and a server device, comprising:
The electronic signboard is
A two-dimensional code display means for displaying a two-dimensional code including a method of accessing the server device, the two-dimensional code generated according to a generation rule for the two-dimensional code whose access method is changed every predetermined period Have
The server device is
Second storage means for storing the generation rule;
Access accepting means for accepting access by a user terminal based on the access method included in the two-dimensional code;
An access that determines whether or not the access is performed within a predetermined period from the time when the two-dimensional code is displayed on the electronic signboard, with reference to the generation rule stored in the second storage unit Appropriateness determination means,
Processing execution means for executing predetermined information processing when it is determined that the access has been performed within a predetermined period from the time when the two-dimensional code is displayed on the electronic signboard. Access authentication system.   The access authentication system according to claim 1, wherein the processing execution means notifies an instruction to control the other device to the other device connected via the communication network.   3. The apparatus according to claim 1, wherein the two-dimensional code display means displays a time period until the two-dimensional code displayed on the electronic signboard is changed, based on the generation rule. Access authentication system described. The server device is
It is determined whether or not the number of times it is determined that the access has been performed within a predetermined period from the time when the one two-dimensional code is displayed on the one or more two-dimensional codes is equal to or less than a predetermined number of times It has access number determination means,
4. The access according to any one of claims 1 to 3, wherein the processing execution means executes the predetermined information processing when the access number determination means determines that the number of access times is less than or equal to the predetermined number. Authentication system. The server device is
When a plurality of two-dimensional codes are simultaneously displayed on the electronic signboard, the access from the time when the one set of two-dimensional codes is displayed on the electronic signboard is displayed for the one pair of two-dimensional codes displayed simultaneously The apparatus has an access number determination unit that determines whether the number of determinations made within a predetermined period is less than or equal to a predetermined number.
4. The access according to any one of claims 1 to 3, wherein the processing execution means executes the predetermined information processing when the access number determination means determines that the number of access times is less than or equal to the predetermined number. Authentication system. An access authentication method in an access authentication system including a digital signage and a server device, comprising:
In the electronic signboard,
The two-dimensional code display means is a two-dimensional code including a method of accessing the server device, the two-dimensional code generated according to a generation rule for the two-dimensional code in which the access method is changed at predetermined intervals. Including the step of displaying
In the server apparatus having a second storage unit for storing the generation rule,
The access acceptance means accepts access by a user terminal based on the access method included in the two-dimensional code;
Whether the access is performed within a predetermined period from the time when the two-dimensional code is displayed on the electronic signboard with reference to the generation rule stored in the second storage means Determining whether or not
Executing predetermined information processing when the processing execution means determines that the access has been performed within a predetermined period of time from the time when the two-dimensional code is displayed on the electronic signboard Method.   7. The access authentication method according to claim 6, wherein the process execution means notifies an instruction to control the other device to the other device connected via the communication network.   8. The apparatus according to claim 6, wherein the two-dimensional code display means displays a period of time until the two-dimensional code displayed on the electronic signboard is changed, based on the generation rule. Access authentication method described. In the server device,
The number of times the access number determination means determines that the access has been performed within a predetermined period from the time when the one two-dimensional code is displayed on the electronic signboard for the one two-dimensional code is equal to or less than a predetermined number of times Including the step of determining whether or not
9. The access according to any one of claims 6 to 8, wherein the processing execution means executes the predetermined information processing when the access number determination means determines that the number of access times is less than or equal to the predetermined number. Authentication method. In the server device,
In the case where a plurality of two-dimensional codes are simultaneously displayed on the electronic signboard, the access number determination means determines the access for the one set of two-dimensional codes as the electronic signboard for a pair of two-dimensional codes displayed simultaneously. Determining whether the number of times determined as being performed within a predetermined period from the time displayed on the screen is equal to or less than the predetermined number of times,
9. The access according to any one of claims 6 to 8, wherein the processing execution means executes the predetermined information processing when the access number determination means determines that the number of access times is less than or equal to the predetermined number. Authentication method. A digital billboard in an access authentication system including a digital billboard and a server device,
The server device is
A second storage unit that stores a generation rule for a two-dimensional code that is a two-dimensional code including an access method to the server device and in which the access method is changed every predetermined period;
Access accepting means for accepting access by a user terminal based on the access method included in the two-dimensional code;
An access that determines whether or not the access is performed within a predetermined period from the time when the two-dimensional code is displayed on the electronic signboard, with reference to the generation rule stored in the second storage unit Appropriateness determination means,
Processing execution means for executing predetermined information processing when it is determined that the access is performed within a predetermined period from the time when the two-dimensional code is displayed on the electronic signboard;
An electronic signboard comprising: two-dimensional code display means for displaying the two-dimensional code generated according to the generation rule. A control method of the electronic signboard in an access authentication system including an electronic signboard and a server device, comprising:
The server device is
A second storage unit that stores a generation rule for a two-dimensional code that is a two-dimensional code including an access method to the server device and in which the access method is changed every predetermined period;
Access accepting means for accepting access by a user terminal based on the access method included in the two-dimensional code;
An access that determines whether or not the access is performed within a predetermined period from the time when the two-dimensional code is displayed on the electronic signboard, with reference to the generation rule stored in the second storage unit Appropriateness determination means,
Processing execution means for executing predetermined information processing when it is determined that the access is performed within a predetermined period from the time when the two-dimensional code is displayed on the electronic signboard;
In the electronic signboard,
A control method of the electronic signboard, comprising the step of: two-dimensional code display means displaying the two-dimensional code generated according to the generation rule.   An electronic signboard control program for causing a computer to execute the control method according to claim 12. A server device in an access authentication system including a digital signboard and a server device, comprising:
The electronic signboard is
A two-dimensional code display means for displaying a two-dimensional code including a method of accessing the server device, the two-dimensional code generated according to a generation rule for the two-dimensional code whose access method is changed every predetermined period If you have
Second storage means for storing the generation rule;
Access accepting means for accepting access by a user terminal based on the access method included in the two-dimensional code;
An access that determines whether or not the access is performed within a predetermined period from the time when the two-dimensional code is displayed on the electronic signboard, with reference to the generation rule stored in the second storage unit Appropriateness determination means,
Processing execution means for executing predetermined information processing when it is determined that the access has been performed within a predetermined period from the time when the two-dimensional code is displayed on the electronic signboard. Server device. A control method of the server device in an access authentication system including a digital signage and a server device,
The electronic signboard is
A two-dimensional code display means for displaying a two-dimensional code including a method of accessing the server device, the two-dimensional code generated according to a generation rule for the two-dimensional code whose access method is changed every predetermined period If you have
In the server apparatus having a second storage unit for storing the generation rule,
The access acceptance means accepts access by a user terminal based on the access method included in the two-dimensional code;
Whether the access is performed within a predetermined period from the time when the two-dimensional code is displayed on the electronic signboard with reference to the generation rule stored in the second storage means Determining whether or not
Performing predetermined information processing when the processing execution means determines that the access has been performed within a predetermined period from the time when the two-dimensional code is displayed on the electronic signboard. Device control method. The server apparatus control program for making a computer perform the control method of Claim 15.

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