KR102587285B1 - Method, device and system for controlling enter or leave using near field communication - Google Patents

Abstract

According to one embodiment, in the access control method using NFC, which is performed by a device, when a first business card, which is a digital business card of a first user, is recognized through an NFC tag by a reader installed on one side of the door, the reader Upon obtaining a first unique number through recognition of the first business card, receiving the first unique number from the reader; When the first user terminal, which is the mobile terminal of the first user, is recognized by the reader through an NFC tag, when the reader obtains a second unique number through recognition of the first user terminal, the second unique number is received from the reader. Receiving a unique number; When the first unique number is received, checking whether the first unique number is registered as an access permission unique number and performing access authentication through the first unique number; When the second unique number is received, checking whether the second unique number is registered as an access permission unique number and performing access authentication through the second unique number; And when it is confirmed that access authentication through the first unique number or access authentication through the second unique number is successful, controlling the door lock installed on the door to be unlocked to open the door, An access control method using NFC is provided, wherein the first unique number and the second unique number are set to the same unique number and registered in the first business card and the first user terminal, respectively.

Description

Access control method, device and system using NFC {METHOD, DEVICE AND SYSTEM FOR CONTROLLING ENTER OR LEAVE USING NEAR FIELD COMMUNICATION}

The embodiments below relate to technology for controlling access using NFC (Near Field Communication).

A typical access authentication system consists of an RFID card, door lock, RF card reader, access controller, server, database, etc. Users with a pre-registered RFID card can use the RF card reader to receive approval from the access controller or server to obtain a door lock. Once open, entry may be possible.

The existing access authentication system using RFID cards has difficulties in operating the RFID card issuance, registration, and re-issuance, and entry is impossible if the RFID card is not in possession, so the inconvenience of having to carry a separate RFID is also inconvenient. there is.

Recently, NFC (Near Field Communication) technology has been applied to various products, and in particular, NFC technology is essential to smartphones. Since NFC supports two-way RF communication while using the same frequency band as existing RF cards, it has advantages and functions that existing one-way RF communication does not have.

Accordingly, the demand for access control using NFC is increasing, and in controlling access, the development of technology to secure convenience through biometric authentication while diversifying access authentication media is required. It is required.

Korean Patent Publication No. 10-2018-0014893 Korean Patent Publication No. 10-2022-0053953 Korean Patent Publication No. 10-2022-0138651 Korean Patent Publication No. 10-2023-0025727

According to one embodiment, the purpose is to provide a method, device, and system for controlling access using NFC (Near Field Communication).

The object of the present invention is not limited to the object mentioned above, and other objects not mentioned can be clearly understood from the description below.

According to one embodiment, in the access control method using NFC, which is performed by a device, when a first business card, which is a digital business card of a first user, is recognized through an NFC tag by a reader installed on one side of the door, the reader Upon obtaining a first unique number through recognition of the first business card, receiving the first unique number from the reader; When the first user terminal, which is the mobile terminal of the first user, is recognized by the reader through an NFC tag, when the reader obtains a second unique number through recognition of the first user terminal, the second unique number is received from the reader. Receiving a unique number; When the first unique number is received, checking whether the first unique number is registered as an access permission unique number and performing access authentication through the first unique number; When the second unique number is received, checking whether the second unique number is registered as an access permission unique number and performing access authentication through the second unique number; And when it is confirmed that access authentication through the first unique number or access authentication through the second unique number is successful, controlling the door lock installed on the door to be unlocked to open the door, An access control method using NFC is provided, wherein the first unique number and the second unique number are set to the same unique number and registered in the first business card and the first user terminal, respectively.

When biometric authentication using the biometric information of the first user is completed in the first user terminal and the first user terminal is recognized by the reader through an NFC tag, the second unique number is the first user terminal. is transmitted to the reader, and when the first user terminal is recognized by the reader through an NFC tag while biometric authentication through the biometric information of the first user is not completed in the first user terminal, the first user terminal 2 The unique number may not be transmitted from the first user terminal to the reader.

The step of controlling the door to be opened includes confirming the time when the first business card or the first user terminal is recognized through an NFC tag in the reader as a first time; Confirming the work status of the first user; When the work status of the first user is confirmed to be non-attendance, it is determined that the first user has recognized the first business card or the first user terminal to the reader to go to work, and the first user is working. changing the status to attendance status and registering the first time as the attendance time of the first user; When the work status of the first user is confirmed to be at work, checking whether the first time is earlier than a second time set as the work time of the first user; If the first time is confirmed to be earlier than the second time, determining that the first user has recognized the first business card or the first user terminal to the reader to move during work; And if it is confirmed that the first time is slower than the second time, it is determined that the first user has recognized the first business card or the first user terminal to the reader to leave work, and the first user is at work. It may include changing the status to a non-attendance state and registering the first time as the first user's off-work time.

According to one embodiment, by controlling access through a digital business card or NFC tag of a mobile terminal, there is an effect of strengthening the convenience of access control by diversifying access authentication media.

In addition, according to one embodiment, security for access control is strengthened by controlling access through biometric authentication and the NFC tag of the mobile terminal, allowing access through the NFC tag of the mobile terminal only when biometric authentication is completed. There is an effect that can be achieved.

Meanwhile, the effects according to the embodiments are not limited to those mentioned above, and other effects not mentioned can be clearly understood by those skilled in the art from the description below.

1 is a diagram schematically showing the configuration of a system according to an embodiment.
Figure 2 is a flow chart to explain the process of controlling access using NFC according to an embodiment.
Figure 3 is a diagram showing a process for obtaining a unique number through an NFC tag according to an embodiment.
Figure 4 is a diagram showing a process for controlling access through biometric authentication and NFC tags according to an embodiment.
Figure 5 is a flow chart to explain the process of managing attendance using NFC according to an embodiment.
Figures 6 and 7 are flow charts to explain the process of controlling access control according to access levels.
Figure 8 is a flow chart to explain a process for providing search results for products according to an embodiment.
Figure 9 is an exemplary diagram of the configuration of a device according to an embodiment.

Hereinafter, embodiments will be described in detail with reference to the attached drawings. However, various changes can be made to the embodiments, so the scope of the patent application is not limited or limited by these embodiments. It should be understood that all changes, equivalents, or substitutes for the embodiments are included in the scope of rights.

Specific structural or functional descriptions of the embodiments are disclosed for illustrative purposes only and may be modified and implemented in various forms. Accordingly, the embodiments are not limited to the specific disclosed form, and the scope of the present specification includes changes, equivalents, or substitutes included in the technical spirit.

Terms such as first or second may be used to describe various components, but these terms should be interpreted only for the purpose of distinguishing one component from another component. For example, a first component may be named a second component, and similarly, the second component may also be named a first component.

When a component is referred to as being “connected” to another component, it should be understood that it may be directly connected or connected to the other component, but that other components may exist in between.

The terms used in the examples are for descriptive purposes only and should not be construed as limiting. Singular expressions include plural expressions unless the context clearly dictates otherwise. In this specification, terms such as “comprise” or “have” are intended to designate the presence of features, numbers, steps, operations, components, parts, or combinations thereof described in the specification, but are not intended to indicate the presence of one or more other features. It should be understood that this does not exclude in advance the possibility of the existence or addition of elements, numbers, steps, operations, components, parts, or combinations thereof.

Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as generally understood by a person of ordinary skill in the technical field to which the embodiments belong. Terms defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related technology, and unless explicitly defined in the present application, should not be interpreted in an ideal or excessively formal sense. No.

In addition, when describing with reference to the accompanying drawings, identical components will be assigned the same reference numerals regardless of the reference numerals, and overlapping descriptions thereof will be omitted. In describing the embodiments, if it is determined that detailed descriptions of related known technologies may unnecessarily obscure the gist of the embodiments, the detailed descriptions are omitted.

Embodiments may be implemented in various types of products such as personal computers, laptop computers, tablet computers, smart phones, televisions, smart home appliances, intelligent vehicles, kiosks, and wearable devices.

1 is a diagram schematically showing the configuration of a system according to an embodiment.

Referring to FIG. 1 , it may include a plurality of business cards 100, a plurality of user terminals 200, a reader 300, and a device 400 according to an embodiment.

First, each of the plurality of business cards 100 is a digital business card and may be implemented in the form of an RF card tagging in the NFC method. For example, the first business card 110, which is the digital business card of the first user, It may include a second business card 120, which is a digital business card.

The plurality of business cards 100 may be configured to communicate with the reader 300 via NFC.

According to one embodiment, using a digital business card, you can register various content that appeals to you along with contact information on a single business card, and you can easily register various content types such as photos, videos, introductory documents, SNS links, etc. It can serve as a blog to share precious memories and daily life records with acquaintances, and can help form a network by registering career, academic background, and portfolio information.

In addition, digital business cards can be used as an access authentication medium in place of separate employee ID cards or visitor cards, and can be applied to various systems such as access control, attendance management, and drinking water management, and access control can be controlled according to access levels. Access authentication may be possible through personal mobile devices other than digital business cards.

The plurality of user terminals 200 may be mobile terminals such as smartphones. For example, the first user terminal 210 is the mobile terminal of the first user, and the second user terminal 220 is the mobile terminal of the second user. ), etc. may be included.

Each of the plurality of user terminals 200 may be configured to perform all or part of the calculation function, storage/reference function, input/output function, and control function of a typical computer.

The plurality of user terminals 200 may be configured to communicate with the reader 300 via NFC and may be configured to communicate with the device 400 via wireless.

The plurality of user terminals 200 may have a one-to-one correspondence with the plurality of business cards 100. For example, the first user's digital business card is the first business card 110, and the first user's mobile terminal is the first user terminal. In the case of 1 user terminal 210, identification information for the first business card 110 is registered in the first user terminal 210, and the first business card 110 and the first user terminal 210 are registered with the first user terminal 210. As an access authentication medium, it can have a one-to-one correspondence relationship.

Hereinafter, for convenience of explanation, the operation of the first business card 110 and the first user terminal 210 will be mainly described. However, the operation of the first business card 110 is performed instead on another business card such as the second business card 120. , another user terminal, such as the second user terminal 220, may instead perform the operation of the first user terminal 210.

The reader 300 is installed on one side of the door and may be equipped with a communication module for NFC. It recognizes a digital business card or user terminal located in an adjacent area through an NFC tag, and uniquely identifies a digital business card or user terminal from the recognized digital business card or user terminal. The number can be obtained, and the obtained unique number can be transmitted to the device 400. Here, the unique number is a unique identifier that is confirmed during access control, and can be assigned differently for each user.

The reader 300 may be configured to communicate with a plurality of business cards 100 and a plurality of user terminals 200 through NFC, and may be configured to communicate with the device 400 through a communication network. Here, the communication network can be configured regardless of the communication mode, such as wired or wireless, and can be implemented in various forms to enable communication between servers and between servers and terminals.

The device 400 may be its own server owned by a person or organization that provides services using the device 400, a cloud server, or a p2p (peer-to-peer) set of distributed nodes. It may be possible. The device 400 may be configured to perform all or part of the calculation function, storage/reference function, input/output function, and control function of a typical computer.

The device 400 may be configured to communicate wirelessly with a plurality of user terminals 200, control the operation of each of the plurality of user terminals 200, and display certain information on the screen of each of the plurality of user terminals 200. You can control whether to display it or not.

The device 400 may be configured to communicate wired or wirelessly with the reader 300, control the operation of the reader 300, and control user access by receiving a unique number from the reader 300.

Meanwhile, for convenience of explanation, FIG. 1 shows only the first business card 110 and the second business card 120 among the plurality of business cards 100, and the first user terminal 210 and the plurality of user terminals 200. Although only the second user terminal 220 is shown, the number of business cards and the number of terminals may vary depending on the embodiment. As long as the processing capacity of the device 400 allows, the number of business cards and the number of terminals are not particularly limited.

FIG. 2 is a flowchart explaining a process of controlling access using NFC according to an embodiment, and FIG. 3 is a diagram showing a process of obtaining a unique number through an NFC tag according to an embodiment.

First, referring to FIG. 2, in step S201, the device 400 can control the reader 300 to remain in a standby state. At this time, the reader 300 is set to a standby state and can perform an operation to search whether a digital business card or user terminal is recognized in the surrounding area through NFC.

In step S202, when the first business card 110 is recognized by the reader 300 through an NFC tag, the device 400 may receive a first unique number from the reader 300. Here, the first business card 110 is a digital business card of the first user, and the first unique number is an identification number for identifying the first business card 110, and is stored in the memory provided in the first business card 110 and registered. It can be.

Specifically, when the first user brings the first business card 110 to the reader 300, the reader 300 can recognize the first business card 110 through the NFC tag, and the first business card 110 Once recognized, the first unique number can be obtained from the first business card 110, and the obtained first unique number can be transmitted to the device 400.

That is, as shown in (a) of FIG. 3, when the first business card 110 is recognized by the reader 300 through an NFC tag, the first business card 110 is recognized by the reader 300. 1 Upon obtaining the unique number, the device 400 can receive the first unique number from the reader 300.

In step S203, when the first user terminal 210 is recognized by the reader 300 through an NFC tag, the device 400 may receive a second unique number from the reader 300. Here, the first user terminal 210 is the mobile terminal of the first user, and the second unique number is an identification number for identifying the first user terminal 210, and is stored in the memory provided in the first user terminal 210. It can be saved and registered.

Specifically, when the first user brings the first user terminal 210 to the reader 300, the reader 300 can recognize the first user terminal 210 through the NFC tag, and the first user terminal ( When 210) is recognized, a second unique number can be obtained from the first user terminal 210, and the obtained second unique number can be transmitted to the device 400.

That is, as shown in (b) of FIG. 3, when the first user terminal 210 is recognized by the reader 300 through an NFC tag, the reader 300 recognizes the first user terminal 210. When the second unique number is obtained through the device 400, the device 400 can receive the second unique number from the reader 300.

According to one embodiment, the first unique number and the second unique number may be set to the same unique number and registered in the first business card 110 and the first user terminal 210, respectively.

That is, the first unique number and the second unique number are set to the same unique number to identify the first user, the first unique number is registered in the first business card 110, and the second unique number is registered in the first user terminal. It can be registered at (210), and through this, a personal mobile terminal and a digital business card in the form of an RF card can be used as an access authentication medium.

In step S204, when the first unique number is received from the reader 300, the device 400 checks whether the first unique number is registered as an access-allowed unique number and performs access authentication through the first unique number. It can be done.

Specifically, a list of access-allowed unique numbers is stored in the database of the device 400, and when the first unique number is received, the device 400 determines whether the first unique number is included in the list of access-allowed unique numbers. You can check whether or not. At this time, if it is confirmed that the first unique number is included in the list of access-allowed unique numbers, the device 400 determines that the first unique number is registered as an access-allowed unique number, and allows access through the first unique number. If authentication can be processed successfully and it is confirmed that the first unique number is not included in the list of access-allowed unique numbers, it is determined that the first unique number is not registered as an access-allowed unique number, and the first unique number is Access authentication via number may be treated as failure.

In step S205, when the second unique number is received from the reader 300, the device 400 checks whether the second unique number is registered as an access-allowed unique number and authenticates access through the second unique number. It can be done.

Specifically, a list of access-allowed unique numbers is stored in the database of the device 400, and when a second unique number is received, the device 400 checks whether the second unique number is included in the list of access-allowed unique numbers. You can check whether or not. At this time, if it is confirmed that the second unique number is included in the list of access-allowed unique numbers, the device 400 determines that the second unique number is registered as an access-allowed unique number, and allows access through the second unique number. If authentication can be processed successfully and it is confirmed that the second unique number is not included in the list of access-allowed unique numbers, it is determined that the second unique number is not registered as an access-allowed unique number, and the second unique number is Access authentication via number may be treated as failure.

In step S206, the device 400 can check whether access authentication through the first unique number is successful.

If access authentication through the first unique number is confirmed to be successful in step S206, the device 400 can control the door lock to be unlocked and the door to be opened in step S208. Here, the door lock may be installed on the door and configured to communicate with the device 400 in a wired or wireless manner. The device 400 can control the door on which the door lock is installed to be opened by unlocking the door lock, and can automatically open the door when the door is opened.

If access authentication through the first unique number is confirmed to have failed in step S206, the process returns to step S201, and the device 400 can control the reader 300 to remain in a standby state.

In step S207, the device 400 can check whether access authentication through the second unique number is successful.

If access authentication through the second unique number is confirmed to be successful in step S207, the device 400 can control the door lock to be unlocked and the door to be opened in step S208.

If access authentication through the first unique number is confirmed to have failed in step S207, the process returns to step S201, and the device 400 can control the reader 300 to remain in a standby state.

As described above, when the device 400 confirms that access authentication through the first unique number or access authentication through the second unique number is successful, the door lock installed on the door is unlocked and the door can be controlled to open. .

Figure 4 is a diagram showing a process for controlling access through biometric authentication and NFC tags according to an embodiment.

As shown in (a) of FIG. 4, when the first user brings the first user terminal 210 to the reader 300, the reader 300 recognizes the first user terminal 210 through the NFC tag. can do.

That is, just by holding the first user terminal 210 to the reader 300, the person wishing to enter can be identified as the first user, so a user other than the first user can use the first user terminal 210. Even if the device is held against the reader 300, there is a problem with the door being opened.

Accordingly, the door can be opened only by NFC tagging of the user terminal without a separate unlocking operation. To prevent this, the door is opened by NFC tagging of the user terminal after biometric authentication using biometric information is performed on the user terminal. It can be processed as much as possible.

As shown in (b) of FIG. 4, the first user first performs biometric authentication and then, when biometric authentication is completed, brings the first user terminal 210 to the reader 300, and the reader 300 Can recognize the first user terminal 210 through the NFC tag. Here, biometric authentication can be performed using face, fingerprint, etc.

In other words, after performing biometric authentication through the user terminal, NFC tagging is performed only when biometric authentication is completed, allowing the user terminal to be used as an access authentication medium. Through this, unauthorized authentication of the user terminal can be fundamentally blocked. there is.

To this end, when biometric authentication using the biometric information of the first user is completed in the first user terminal 210 and the first user terminal 210 is recognized by the reader 300 through an NFC tag, the second unique The number may be transmitted from the first user terminal 210 to the reader 300.

That is, when the first user terminal 210 is recognized through an NFC tag, the reader 300 checks whether biometric authentication using the first user's biometric information has been completed, When it is confirmed that biometric authentication has been completed, a second unique number can be obtained from the first user terminal 210.

In addition, when the first user terminal 210 is recognized by the reader 300 through an NFC tag while biometric authentication through the first user's biometric information has not been completed, the second unique number is It may not be transmitted from the first user terminal 210 to the reader.

That is, when the first user terminal 210 is recognized through an NFC tag, the reader 300 checks whether biometric authentication using the first user's biometric information has been completed, If it is determined that biometric authentication has not been completed, the second unique number may not be obtained even if the first user terminal 210 is recognized through the NFC tag.

Figure 5 is a flow chart to explain the process of managing attendance using NFC according to an embodiment.

According to one embodiment, each step shown in FIG. 5 is performed when access authentication through the first unique number is confirmed to be successful in step S206 or when access authentication through the second unique number is confirmed to be successful in step S207. You can.

First, referring to FIG. 5, in step S501, the device 400 confirms the time at which the first business card 110 or the first user terminal 210 was recognized through the NFC tag by the reader 300 as the first time. You can. Here, the first time can be identified by dividing it into hours, minutes, seconds, etc.

That is, when the access authentication through the first unique number is confirmed to be successful, the device 400 can confirm the time when the first business card 110 was recognized by the reader 300 through the NFC tag as the first time, If access authentication through the second unique number is confirmed to be successful, the time at which the first user terminal 210 was recognized by the reader 300 through the NFC tag can be confirmed as the first time.

In step S502, the device 400 may check the work status of the first user. Here, the work status of the first user may be confirmed as either a non-attendance status or an attendance status. To this end, first user information is stored in the database of the device 400, and the device 400 can check the work status of the first user based on the first user information. The first user information may include information about the first user's work status.

In step S503, the device 400 may check whether the first user's work status is a non-attendance status.

If the work status of the first user is confirmed to be non-attendance in step S503, in step S504, the device 400 uses a reader ( 300), it can be judged that it was recognized.

That is, if access authentication through the first unique number is confirmed to be successful, the device 400 may determine that the first user has recognized the first business card 110 to the reader 300 to go to work, and 2 If access authentication through the unique number is confirmed to be successful, it may be determined that the first user terminal 210 has been recognized by the reader 300 in order to go to work.

In step S504, the device 400 may change the work status of the first user to the attendance status and register the first time as the first user's attendance time. At this time, the device 400 may update the first user information, change the work status of the first user, and register the first user's attendance time.

If the work status of the first user is confirmed to be attendance status in step S503, the device 400 may check whether the first time is earlier than the second time in step S506. Here, the second time is the time set as the first user's work time. To this end, the device 400 may check the first user's work time as the second time based on the first user information. The first user information may include information about the first user's work time.

If the first time is confirmed to be earlier than the second time in step S506, in step S507, the device 400 reads the first business card 110 or the first user terminal 210 so that the first user moves during work. It can be judged that it was recognized at (300).

That is, if access authentication through the first unique number is confirmed to be successful, the device 400 may determine that the first user has recognized the first business card 110 to the reader 300 to move during work. , if access authentication through the second unique number is confirmed to be successful, it may be determined that the first user has recognized the first user terminal 210 to the reader 300 in order to move during work.

If it is determined in step S506 that the first time is not earlier than the second time and the first time is slower than the second time, in step S508, the device 400 determines that the first user uses the first business card 110 or the first time to leave work. 1 It can be determined that the user terminal 210 has been recognized by the reader 300.

That is, when the access authentication through the first unique number is confirmed to be successful, the device 400 may determine that the first user has recognized the first business card 110 in the reader 300 to leave work, and the first user can leave work. 2 If access authentication through the unique number is confirmed to be successful, it may be determined that the first user terminal 210 has been recognized by the reader 300 to leave work.

In step S509, the device 400 may change the work status of the first user to a non-attendance state and register the first time as the first user's work time. At this time, the device 400 may update the first user information, change the work status of the first user, and register the first user's work time.

After any one of steps S505, S507, and S509 is performed, in step S510, the device 400 can control the door lock to be unlocked and the door to be opened.

Figures 6 and 7 are flow charts to explain the process of controlling access control according to access levels.

According to one embodiment, each step shown in FIGS. 6 to 7 is performed when access authentication through the first unique number is confirmed to be successful in step S206, or when access authentication through the second unique number is confirmed to be successful in step S207. , can be performed.

First, referring to FIG. 6, in step S601, if an access door is installed to control access to the first zone, the device 400 may confirm that the access level of the first zone is the first level. To this end, the first zone information is stored in the database of the device 400, and the device 400 can confirm that the access permission level of the first zone is the first level based on the first zone information. The first zone information may include information about the access level of the first zone.

In step S602, the device 400 may confirm that the access authority level of the first user is the second level. To this end, the first user information is stored in the database of the device 400, and the device 400 can confirm that the access authority level of the first user is the second level based on the first user information. The first user information may include information about the access authority level of the first user.

In step S603, the device 400 may check whether the second rating is higher than the first rating as a result of comparing the first rating and the second rating.

If it is confirmed that the second grade is a higher grade than the first grade in step S603, the device 400 may calculate the difference between the second grade and the first grade as a first difference value in step S604.

For example, if the first grade is grade 3 and the second grade is grade 1, the device 400 may determine that the second grade is a higher grade than the first grade as a result of comparing the first grade and the second grade. And the difference between the second grade and the first grade can be calculated as grade 2, which is the difference between grade 1 and grade 3.

In step S605, the device 400 can check whether the first difference value is level 2 or higher.

If it is confirmed that the first difference value is 2 or higher in step S605, the device 400 can control the door lock to be unlocked and the door to be opened in step S612.

That is, if the access permission level of the first user is two or more levels higher than the access permission level of the first zone, the device 400 can access the door using only the first business card 110 or the NFC tag of the first user terminal 210. This can be controlled to be open.

If it is confirmed in step S605 that the first difference value is not grade 2 or higher, the first difference value may be confirmed as grade 1, and if it is confirmed that the first difference value is grade 1, in step S606, the device 400 You can check whether access authentication through the first unique number was successful.

If it is confirmed that access authentication through the first unique number is successful in step S606, the device 400 can control a notification message informing that the NFC tag of the user terminal is required to be output through the speaker in step S607. Here, the speaker may be installed on one side of the door and configured to communicate with the device 400 in a wired or wireless manner.

That is, when the first difference value is confirmed to be level 1 and access authentication through the first unique number is confirmed to be successful, the device 400 determines that access authentication through the second unique number is additionally necessary, and the user You can control a notification message informing you that the terminal's NFC tag is needed to be output through the speaker.

After a notification message informing that the NFC tag of the user terminal is required is output through the speaker, access authentication through the second unique number may be additionally performed, as described above in steps S203, S205, and S207.

If the device 400 determines that access authentication through the second unique number is additionally successful after a notification message informing that the NFC tag of the user terminal is required is output through the speaker, the door lock is unlocked in step S612. The door can be controlled to be opened.

That is, when the device 400 confirms that the first difference value is level 1 and that access authentication through the first unique number is successful, a notification message informing that the NFC tag of the user terminal is required is sent through the speaker. It can be controlled to be output, and if access authentication through the second unique number is additionally confirmed to be successful, the door can be controlled to be opened.

If it is confirmed that access authentication through the first unique number is not successful in step S606, it can be confirmed that access authentication through the second unique number is successful, and if it is confirmed that access authentication through the second unique number is successful, S608 In this step, the device 400 may control a notification message informing that the NFC tag of the digital business card is required to be output through the speaker.

That is, when the first difference value is confirmed to be level 1 and access authentication through the second unique number is confirmed to be successful, the device 400 determines that additional access authentication through the first unique number is necessary, and digital You can control a notification message informing you that the business card's NFC tag is required to be output through the speaker.

After a notification message informing that the NFC tag of the digital business card is required is output through the speaker, access authentication through the first unique number may be additionally performed, as described above in steps S202, S204, and S206.

After a notification message informing that the NFC tag of the digital business card is required is output through the speaker, the device 400 determines that access authentication through the first unique number is additionally successful, and in step S612, the door lock is unlocked. The door can be controlled to be opened.

That is, when the device 400 confirms that the first difference value is level 1 and that access authentication through the second unique number is successful, a notification message informing that the NFC tag of the digital business card is required is sent through the speaker. It can be controlled to be output, and if access authentication through the first unique number is additionally confirmed to be successful, the door can be controlled to be opened.

Meanwhile, if it is confirmed in step S603 that the second rating is not higher than the first rating, in step S609, the device 400 compares the first rating and the second rating, and as a result, the first rating and the second rating are determined. You can check whether it is the same grade.

If it is confirmed that the first grade and the second grade are the same grade in step S609, the device 400 may generate a first QR code for worker verification in step S610. Here, the first QR code can be set to be used only when recognized within a predetermined period of time.

In step S610, the device 400 may transmit the first QR code to the first user terminal 210 using the representative contact information of the first user. For this purpose, first user information is stored in the database of the device 400, and the device 400 checks the representative contact information of the first user based on the first user information and then uses the representative contact information of the first user. Thus, the first QR code can be transmitted to the first user terminal 210. The first user information may include information about the first user's representative contact information, and the representative contact information may be set as a phone number, SNS account, email account, etc.

That is, if the access permission level of the first zone and the access permission level of the first user are the same level, the device 400 generates a first QR code for worker verification, and sends the first QR code to the first user terminal 210. You can send the code.

After transmitting the first QR code to the first user terminal 210, if the first QR code is recognized by the scanner within a predetermined period, the device 400 unlocks the door lock and opens the door in step S612. You can control it. Here, the scanner may be installed on one side of the door and configured to communicate with the device 400 in a wired or wireless manner.

That is, if the device 400 confirms that the first QR code is recognized by the scanner within a predetermined period from the time the first QR code is transmitted to the first user terminal 210, the door lock is unlocked and the door is opened. It can be controlled to be open.

If it is confirmed in step S609 that the first grade and the second grade are not the same grade, the first grade may be confirmed to be a higher grade than the second grade, and if the first grade is confirmed to be a higher grade than the second grade, , In step S701, the device 400 may calculate the difference between the second grade and the second grade as a second difference value.

In step S702, the device 400 may check whether the second difference value is level 1.

If it is confirmed that the second difference value is level 1 in step S702, in step S703, the device 400 uses the representative contact information of the second user, who is the manager of the first zone, to send the first message to the second user terminal 220. A request to confirm the user's access permission can be sent. Here, the request to confirm access of the first user is a request to confirm whether to allow the first user to enter the first zone, and may include first user information. To this end, second user information is stored in the database of the device 400, and the device 400 determines that the second user is the manager of the first area based on the second user information, and determines that the second user is the administrator of the first area. After confirming the representative contact information, a request to confirm access permission of the first user may be transmitted to the second user terminal 220 using the representative contact information of the second user. The second user information may include information about the second user's position, job, representative contact information, etc.

After transmitting a request to confirm access permission of the first user to the second user terminal 220, the device 400 receives an access permission confirmation response of the first user from the second user terminal 220, in step S708, You can control the door lock to be unlocked and the door to be opened. Here, the entry permission confirmation response of the first user is a response confirming that the first user is permitted to enter the first zone.

That is, when it is confirmed that the second difference value is level 1, the device 400 transmits a request to confirm access permission of the first user to the second user terminal 220, and receives the first user from the second user terminal 220. When a user's access permission confirmation response is received, the door can be controlled to be opened.

If it is confirmed that the second difference value is not grade 1 in step S702, the device 400 may check whether the second difference value is grade 2 in step S704.

If it is confirmed that the second difference value is level 2 in step S704, in step S705, the device 400 uses the representative contact information of the second user, who is the manager of the first zone, to send the first message to the second user terminal 220. A request to confirm the user's access permission can be sent.

After transmitting a request to confirm access permission of the first user to the second user terminal 220, the device 400 receives an access permission confirmation response of the first user from the second user terminal 220, in step S706, Device 400 may generate a second QR code for visitor verification. Here, the second QR code can be set to be used only when recognized within a predetermined period of time.

In step S707, the device 400 may transmit a second QR code to the first user terminal 210 using the first user's representative contact information.

After transmitting the second QR code to the first user terminal 210, if the second QR code is recognized by the scanner within a predetermined period of time, the device 400 unlocks the door lock and opens the door in step S708. can control

That is, when it is confirmed that the second difference value is level 2, the device 400 transmits a request to confirm access permission of the first user to the second user terminal 220, and receives the first user from the second user terminal 220. When a user's access permission confirmation response is received, a second QR code for visitor confirmation is generated, the second QR code is transmitted to the first user terminal 210, and when the second QR code is recognized by the scanner within a predetermined period of time, , the door can be controlled to be opened.

Meanwhile, if it is confirmed that the second difference value is not grade 2 in step S704, it can be confirmed that the second difference value is grade 3 or higher, and if it is confirmed that the second difference value is grade 3 or higher, in step S709, the device (400 ) can control a notification message informing that entry to the first area is not possible to be output through the speaker and control the door not to be opened.

That is, if the second difference value is confirmed to be level 3 or higher, the device 400 can control the door not to be opened while controlling a notification message informing that entry to the first area is impossible to be output through the speaker. there is.

Figure 8 is a flow chart to explain a process for providing search results for products according to an embodiment.

According to one embodiment, each step shown in FIG. 8 may be performed after step S709 is performed.

Referring to FIG. 8, in step S801, the device 400 may identify the first zone as the production zone for the first product. To this end, first zone information is stored in the database of the device 400, and the device 400 can confirm that the first zone is the production zone for the first product based on the first zone information. First zone information may include information about products produced in the first zone.

In step S802, if the first zone is confirmed to be a zone that produces the first product, the device 400 may perform a search for the first product and obtain a search result for the first product. Here, the search result for the first product may include an article about the first product, a review of the first product, a sales page for the first product, etc.

In step S803, the device 400 may check the number of search results for the first product as a first value.

For example, if the device 400 performs a search for a first product and obtains 5 search results for the first product, 5 may be confirmed as the first number.

In step S804, the device 400 may check whether the first numerical value is smaller than the first reference value. Here, the first reference value is a standard for setting the maximum search result and may be set differently depending on the embodiment. For example, it may be set manually at the request of the first user, and the first user terminal ( 210) may be set automatically depending on the screen size.

If it is confirmed that the first value is smaller than the first reference value in step S804, the device 400 may provide a search result for the first product to the first user terminal 210 in step S805.

That is, if the device 400 determines that the first value is smaller than the first reference value, the device 400 may include all search results for the first product and provide the search results to the first user terminal 210 .

If it is determined in step S804 that the first value is not smaller than the first reference value, in step S806, the device 400 may confirm the second zone connected to the first zone as the production zone for the second product. For this purpose, second zone information is stored in the database of the device 400, and the device 400 determines that the second zone is connected to the first zone and the second zone is the second product based on the second zone information. It can be confirmed that this is a production area. The second zone information may include information about the zone connected to the second zone and the products produced in the second zone.

In step S807, the device 400 may perform a search using the AND condition of the first product and the second product to obtain a search result for the AND condition of the first product and the second product.

In step S808, the device 400 may check the search result for the AND condition of the first product and the second product as a second number.

For example, if device 400 performs a search with an AND condition of a first product and a second product, and obtains 5 search results that include both the first product and the second product, then 5 can be confirmed with the second numerical value.

In step S809, the device 400 may check whether the second numerical value is smaller than the first reference value.

If it is confirmed that the second value is smaller than the first reference value in step S809, in step S810, the device 400 provides the search result for the AND condition of the first product and the second product to the first user terminal 210. You can.

That is, if the device 400 determines that the first value is greater than the first reference value but the second value is less than the first reference value, the device 400 generates an AND condition for the first product and the second product rather than a search result for the first product. Search results may be provided to the first user terminal 210.

If it is confirmed in step S809 that the second value is not smaller than the first reference value, in step S811, the device 400 searches the first search result and the second search within the search results for the AND condition of the first product and the second product. The results and third search results can be classified respectively. Here, the first search result is information newly registered during the reference period within the search results for the AND condition of the first product and the second product, and the second search result is information newly registered in the AND condition of the first product and the second product. The third search result is information that has been updated during the reference period within the search results, and the third search result is information that has been maintained without change during the reference period within the search results for the AND condition of the first product and the second product. At this time, the reference period may be set differently depending on the embodiment, for example, it may be set to the last one week.

That is, the device 400 classifies the newly registered information during the reference period within the search results for the AND conditions of the first product and the second product as the first search result, and Information that has been updated during the standard period within the search results for It can be classified as:

In step S812, the device 400 may check the number of first search results as a third number and the number of second search results as a fourth number.

In step S813, the device 400 may check whether the sum of the third and fourth numerical values is less than the first reference value.

If it is confirmed that the sum of the third and fourth numbers is less than the first reference value in step S813, in step S814, the device 400 sends the first search result and the second search result to the first user terminal 210. It can be provided as .

That is, if the device 400 determines that the second value is smaller than the first reference value, the device 400 includes all the first search results, second search results, and third search results, and sends the search results to the first user terminal 210. can be provided, and if the second value is greater than the first reference value but the sum of the third value and the fourth value is confirmed to be less than the first reference value, the third search result is excluded and the first search result and the second The search results may be provided to the first user terminal 210 by including only the search results.

If it is confirmed that the sum of the third and fourth numbers is not less than the first reference value in step S813, the device 400 may provide the first search result to the first user terminal 210 in step S815. there is.

That is, if the device 400 determines that the sum of the third and fourth values is greater than the first reference value, the device 400 excludes the second and third search results and includes only the first search result, resulting in a search result. Can be provided to the first user terminal 210.

Figure 9 is an exemplary diagram of the configuration of a device according to an embodiment.

The device 400 according to one embodiment includes a processor 410 and a memory 420. The processor 410 may include at least one device described above with reference to FIGS. 1 to 8 or may perform at least one method described above with reference to FIGS. 1 to 8 . A person or organization using device 400 may provide services related to some or all of the methods described above with reference to FIGS. 1 to 8 .

The memory 420 may store information related to the methods described above or store a program in which methods described later are implemented. Memory 420 may be volatile memory or non-volatile memory.

The processor 410 can execute programs and control the device 400. The code of the program executed by the processor 410 may be stored in the memory 420. The device 400 is connected to an external device (eg, a personal computer or a network) through an input/output device (not shown) and can exchange data through wired or wireless communication.

The embodiments described above may be implemented with hardware components, software components, and/or a combination of hardware components and software components. For example, the devices, methods, and components described in the embodiments may include, for example, a processor, a controller, an arithmetic logic unit (ALU), a digital signal processor, a microcomputer, and a field programmable gate (FPGA). It may be implemented using one or more general-purpose or special-purpose computers, such as an array, programmable logic unit (PLU), microprocessor, or any other device capable of executing and responding to instructions. A processing device may execute an operating system (OS) and one or more software applications that run on the operating system. Additionally, a processing device may access, store, manipulate, process, and generate data in response to the execution of software. For ease of understanding, a single processing device may be described as being used; however, those skilled in the art will understand that a processing device includes multiple processing elements and/or multiple types of processing elements. It can be seen that it may include. For example, a processing device may include a plurality of processors or one processor and one controller. Additionally, other processing configurations, such as parallel processors, are possible.

The method according to the embodiment may be implemented in the form of program instructions that can be executed through various computer means and recorded on a computer-readable medium. The computer-readable medium may include program instructions, data files, data structures, etc., singly or in combination. Program instructions recorded on the medium may be specially designed and configured for the embodiment or may be known and available to those skilled in the art of computer software. Examples of computer-readable recording media include magnetic media such as hard disks, floppy disks, and magnetic tapes, optical media such as CD-ROMs and DVDs, and magnetic media such as floptical disks. -Includes optical media (magneto-optical media) and hardware devices specifically configured to store and execute program instructions, such as ROM, RAM, flash memory, etc. Examples of program instructions include machine language code, such as that produced by a compiler, as well as high-level language code that can be executed by a computer using an interpreter, etc. The hardware devices described above may be configured to operate as one or more software modules to perform the operations of the embodiments, and vice versa.

Software may include a computer program, code, instructions, or a combination of one or more of these, which may configure a processing unit to operate as desired, or may be processed independently or collectively. You can command the device. Software and/or data may be used on any type of machine, component, physical device, virtual equipment, computer storage medium or device to be interpreted by or to provide instructions or data to a processing device. , or may be permanently or temporarily embodied in a transmitted signal wave. Software may be distributed over networked computer systems and stored or executed in a distributed manner. Software and data may be stored on one or more computer-readable recording media.

Although the embodiments have been described with limited drawings as described above, those skilled in the art can apply various technical modifications and variations based on the above. For example, the described techniques are performed in a different order than the described method, and/or components of the described system, structure, device, circuit, etc. are combined or combined in a different form than the described method, or other components are used. Alternatively, appropriate results may be achieved even if substituted or substituted by an equivalent.

Therefore, other implementations, other embodiments, and equivalents of the claims also fall within the scope of the following claims.

Claims (3)

In an access control method using NFC, performed by a device,
When a first business card, which is a digital business card of the first user, is recognized by a reader installed on one side of the door through an NFC tag, and the first unique number is obtained through recognition of the first business card by the reader, the first unique number is obtained from the reader. 1. Receiving a unique number;
When the first user terminal, which is the mobile terminal of the first user, is recognized by the reader through an NFC tag, when the reader obtains a second unique number through recognition of the first user terminal, the second unique number is received from the reader. Receiving a unique number;
When the first unique number is received, checking whether the first unique number is registered as an access permission unique number and performing access authentication through the first unique number;
When the second unique number is received, checking whether the second unique number is registered as an access permission unique number and performing access authentication through the second unique number; and
When it is confirmed that access authentication through the first unique number or access authentication through the second unique number is successful, controlling the door lock installed on the door to be unlocked to open the door,
The first unique number and the second unique number are set as the same unique number and registered in the first business card and the first user terminal, respectively,
The step of controlling the door to open is,
When the door is installed to control access to the first zone, confirming the access permission level of the first zone as the first level;
Confirming the access authority level of the first user as a second level;
As a result of comparing the first grade and the second grade, if it is confirmed that the second grade is a higher grade than the first grade, the difference between the second grade and the first grade is calculated as a first difference value. steps;
When it is confirmed that the first difference value is 2 or higher, controlling the door to be opened;
If the first difference value is confirmed to be level 1 and access authentication through the first unique number is confirmed to be successful, a notification message informing that the NFC tag of the user terminal is required is sent through a speaker installed on one side of the door. controlling the output to be output through the second unique number, and controlling the door to be opened when it is confirmed that access authentication through the second unique number is additionally successful;
When the first difference value is confirmed to be level 1 and access authentication through the second unique number is confirmed to be successful, a notification message informing that the NFC tag of the digital business card is required is controlled to be output through the speaker. , when it is confirmed that access authentication through the first unique number is additionally successful, controlling the access door to be opened;
As a result of comparing the first grade and the second grade, if it is confirmed that the first grade and the second grade are the same grade, a first QR code for worker verification is generated, and the representative contact information of the first user Using , transmitting the first QR code to the first user terminal, and controlling the door to be opened when the first QR code is recognized within a predetermined period by a scanner installed on one side of the door;
As a result of comparing the first grade and the second grade, if it is confirmed that the first grade is a higher grade than the second grade, the difference between the first grade and the second grade is calculated as a second difference value. steps;
When it is confirmed that the second difference value is level 1, a request to confirm access permission of the first user is transmitted to the second user terminal using the representative contact information of the second user who is the manager of the first area, and the When a response confirming access permission of the first user is received from a second user terminal, controlling the door to be opened;
When it is confirmed that the second difference value is level 2, a request to confirm access permission of the first user is transmitted to the second user terminal using the representative contact information of the second user, and a request for confirmation of access permission of the first user is received from the second user terminal. When the first user's access permission confirmation response is received, generate a second QR code for visitor confirmation, and transmit the second QR code to the first user terminal using the first user's representative contact information, controlling the door to be opened when the second QR code is recognized by the scanner within a predetermined period of time; and
When it is confirmed that the second difference value is level 3 or higher, controlling a notification message informing that entry to the first area is impossible is output through the speaker, and controlling the door not to be opened. ,
Access control method using NFC. According to paragraph 1,
When biometric authentication using the biometric information of the first user is completed in the first user terminal and the first user terminal is recognized by the reader through an NFC tag, the second unique number is the first user terminal. is transmitted to the reader from
When the first user terminal is recognized by the reader through an NFC tag while biometric authentication through the biometric information of the first user is not completed in the first user terminal, the second unique number is the first user terminal. Characterized in that it is not transmitted from the user terminal to the reader,
Access control method using NFC. According to paragraph 1,
The step of controlling the door to open is,
Confirming the time at which the first business card or the first user terminal was recognized by the reader through an NFC tag as a first time;
Confirming the work status of the first user;
When the work status of the first user is confirmed to be non-attendance, it is determined that the first user has recognized the first business card or the first user terminal to the reader to go to work, and the first user is working. changing the status to attendance status and registering the first time as the attendance time of the first user;
When the work status of the first user is confirmed to be at work, checking whether the first time is earlier than a second time set as the work time of the first user;
If the first time is confirmed to be earlier than the second time, determining that the first user has recognized the first business card or the first user terminal to the reader to move during work; and
If the first time is confirmed to be slower than the second time, it is determined that the first user has recognized the first business card or the first user terminal to the reader to leave work, and the work status of the first user is determined. Comprising the step of changing to a non-attendance state and registering the first time as the off-work time of the first user,
Access control method using NFC.