KR102575213B1 - APPARATUS AND METHOD for displaying codes - Google Patents

Abstract

It relates to a code display device, the code display device includes a code generator for generating a code including a URL for access to a web page, and a control unit for displaying the generated code as an expression code on a display unit, The code may include variable data that is variable for each preset time unit.

Description

Code display device and method {APPARATUS AND METHOD for displaying codes}

The present invention relates to a code display device and method using a URL for web (webpage) access.

QR (Quick Response) code is a two-dimensional (matrix) type code that contains various information in square horizontal and vertical grid patterns. It was developed by Denso Wave in Japan in 1994. is widely used in

While existing one-dimensional barcodes can only store numeric information of around 20 characters, QR codes can store up to 7,089 numbers, up to 4,296 characters (ASCII), up to 2,953 bytes in binary (8-bit), and up to 1,817 Chinese characters. , Recognition speed, recognition rate, and resilience are superior to general barcodes. While barcodes are mainly used for calculation, inventory management, and product identification, QR codes are widely used as marketing, promotion, and PR tools.

In addition, exclusive terminals that can read existing barcodes can only be owned by product sellers, making it impossible for consumers to use barcodes to identify information.

The use of QR codes has increased with the spread of smartphones. Smartphone users can easily obtain various information simply by scanning a QR code with a smartphone with a free QR code scanning application installed.

For example, in a store (restaurant, restaurant, etc.) that sells recent food, a QR code that enables online ordering of food sold in the store is printed on paper for each table in the store, and the table is displayed. By attaching it to the table, the store is operated in such a way that customers sitting at the table can receive food orders by scanning the corresponding QR code with their smartphone.

However, in such a conventional QR code providing method (for example, a method of providing a QR code in a fixed format in which data cannot be changed by providing a QR code through paper printing), the information stored in the QR code at the time of providing the QR code is Since it is provided in the same form at all times (that is, a form in which the same fixed data is provided at all times that is fixed without change), the corresponding QR code can be copied, and the copied QR code can be used for food/products. There is a problem in that false orders occur as orders and payments are possible.

In addition, in the conventional QR code provision method, when a customer recognizes a QR code with a smartphone to order food with a QR code attached to a table and accesses a URL corresponding to the QR code, then the business owner of the store that provided the QR code Customers were able to use services such as ordering food by directly entering their registered ID and password (i.e., the ID and PW preset on the web page of the accessed URL), which caused inconvenience to customers. . In addition, conventionally, if a customer wants to place an additional order after completing one food order and payment, the customer has to go through the process of 'recognizing the QR code, entering ID and PW, and paying for the additional order' whenever the additional order is executed. had to be performed each time, which also made customers uncomfortable and cumbersome.

The background technology of the present invention is disclosed in Korean Patent Publication No. 10-2022-0091851.

The present invention is to solve the problems of the prior art described above, and the conventional QR code providing method (for example, a method of providing a QR code in a fixed format in which data cannot be changed by providing a QR code through paper printing, etc.) has various Problems (i.e., problems such as occurrence of false orders due to copying of QR code, inconvenience of customer having to input ID and PW directly after accessing URL, inconvenience of having to make payment again every time additional order is made) It is an object of the present invention to provide a code display device and method that can effectively solve the problem.

However, the technical problems to be achieved by the embodiments of the present invention are not limited to the technical problems described above, and other technical problems may exist.

As a technical means for achieving the above technical problem, a code display device according to an embodiment of the present invention includes a code generator for generating a code including a URL for access to a web page, and the generated code A control unit for displaying the display code as an expression code on the display unit may be included, and the code may include variable data that is variable for each preset time unit.

In addition, the code includes a fixed part area in which fixed data is recorded and a variable part area in which the variable data is recorded, wherein the fixed data is address information of the URL corresponding to the web page, and the variable data is , It may be data generated using login authentication data required when logging in on the webpage to use the service provided by the webpage.

Also, the variable data may be encrypted variable login authentication data generated by encrypting the login authentication data using a one-time key value that is changed for each preset time unit.

In addition, the code is influenced by the type of access attempt to the web page for the display code attempted in the customer terminal, and the availability of the service provided in the web page is determined differently depending on the type of the access attempt. It may have been created to be.

In addition, the types of access attempts include a first type in which a customer terminal attempts to access the webpage based on direct recognition of an expression code displayed on the display unit, and a first type in which the customer terminal attempts to access the display unit. A second type of trying to access the web page based on indirect recognition of the display code displayed on the web page may be included.

The above-described means for solving the problems is only illustrative and should not be construed as limiting the present invention. In addition to the exemplary embodiments described above, additional embodiments may exist in the drawings and detailed description of the invention.

According to the problem solving means of the present invention described above, by providing a code display device and method, a conventional QR code providing method (eg, providing a QR code in a fixed format in which data cannot be changed by providing a QR code through paper printing, etc.) method) has various problems (i.e., the problem of generating false orders due to copying of the QR code, the inconvenience of requiring the customer to enter the ID and PW directly after accessing the URL, and the inconvenience of having to make a payment again every time an additional order is made). problems) can be effectively addressed.

However, the effects obtainable in the present invention are not limited to the effects described above, and other effects may exist.

1 is a diagram showing a schematic configuration of a code management system including a code display device according to an embodiment of the present invention.
2 is an operational flowchart of a code display method according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail so that those skilled in the art can easily practice the present invention with reference to the accompanying drawings. However, the present invention may be embodied in many different forms and is not limited to the embodiments described herein. And in order to clearly explain the present invention in the drawings, parts irrelevant to the description are omitted, and similar reference numerals are attached to similar parts throughout the specification.

Throughout the specification of the present invention, when a part is said to be “connected” to another part, it is not only “directly connected”, but also “electrically connected” or “indirectly connected” with another element in between. It also includes cases where it is "connected to".

Throughout the specification of the present invention, when a member is said to be located “on”, “above”, “on top”, “below”, “below”, or “below” another member, this means that a member is positioned “on” another member. This includes not only the case in contact with a member but also the case where another member exists between two members.

Throughout the specification of the present invention, when a part "includes" a certain component, it means that it may further include other components without excluding other components unless otherwise stated.

1 is a diagram showing a schematic configuration of a code management system 1 including a code display device 10 according to an embodiment of the present invention.

Hereinafter, for convenience of description, the code display device 10 according to an embodiment of the present invention is referred to as the present device 10, and the code management system 1 according to an embodiment of the present invention is referred to as the present system 1. I'm going to do it.

Referring to FIG. 1 , the system 1 may include a code display device 10 (this device), a business owner terminal 40 and a customer terminal 30.

The device 10 may be a device that generates codes and displays the generated codes. The code generated by the device 10 means a code capable of storing and recording specific information, and may preferably mean a QR (Quick Response) code. However, it is not limited thereto, and the code generated by the device 10 may be applied with barcodes or other types of codes previously known or developed in the future, in addition to QR codes.

The business owner terminal 40 may mean a terminal possessed by the business owner 41 . The business owner 41 may refer to a user who provides various services, such as selling products to customers. Here, the product may include various sellable products including food and articles (products). According to this, the business owner 41 may be a user who operates a store that provides various services such as sales in relation to food and goods.

The device 10 may be a device owned by the business owner 41 by purchasing or renting the device 10 by the business owner 41 . The business owner 41 may, for example, equip (install, place) the device 10 in a store he/she manages. That is, in the present device, possession may mean ownership by purchase or rental.

In the example shown in FIG. 1, it is illustrated that one device 10 is provided, but this is only one example to help understanding of the present invention, and is not limited thereto, and the device 10 is provided in plurality. It can be. According to this, the business owner 41 may be a user who owns a plurality of devices, and at this time, each of the plurality of devices owned by the business owner 41 is, for example, located at each of a plurality of tables in a store operated by the business owner 41. It can be installed in a 1:1 (or 1:n) correspondence. In describing the present invention, the description of the present device 10 can be equally applied to the description of each of a plurality of present devices, even if the content is omitted below.

The present system 1 may include a plurality of business owner terminals, and each of the plurality of business owner terminals may own at least one apparatus 10 . Therefore, even if the content is omitted below, the description of the business owner terminal in the present invention can be equally applied to the description of each of a plurality of business owner terminals.

The apparatus 10 may be provided (installed, placed) in one area on any one table among a plurality of tables in a store operated by the business owner 41 . The apparatus 10 may be a device (device) provided in a simple, compact shape and size without complexity.

The customer terminal 30 may refer to a terminal possessed by the customer 31 . The customer 31 visits the store operated by the business owner 41, recognizes the code displayed on the device 10 provided in the store (meaning the display code described later) as the customer terminal 30, and , may mean a user who uses a service provided by the business owner 41 (for example, a service such as ordering or paying for a product sold by the business owner 41 at a corresponding store) based on the recognition of the expression code. A customer 31 may be otherwise referred to as a guest or the like.

In the present invention, the customer terminal 30 and the business owner terminal 40 may be collectively referred to as a terminal. In the present invention, the terminal is, for example, PCS (Personal Communication System), GSM (Global System for Mobile communication), PDC (Personal Digital Cellular), PHS (Personal Handyphone System), PDA (Personal Digital Assistant), IMT (International Mobile Telecommunication) -2000, CDMA (Code Division Multiple Access)-2000, W-CDMA (WCode Division Multiple Access), Wibro (Wireless Broadband Internet) Terminal, Smartphone, SmartPad, Tablet PC, Laptop, Wearable Device , desktop PCs, and the like, and may include all types of wired and wireless communication devices, but are not limited thereto. In the present invention, in the case of the customer terminal 30, it is preferable to be a portable and movable smartphone, etc., and in the case of the business owner terminal 40, it may be preferable to be a desktop PC, etc., but it is not limited thereto, and the business owner terminal 40 is also It may be a portable and movable smartphone or the like.

The device 10 may transmit/receive data by interworking with each of the customer terminal 30 and the business owner terminal 40 through the network 20 .

The network 20 may include, for example, a 3rd Generation Partnership Project (3GPP) network, a Long Term Evolution (LTE) network, a World Interoperability for Microwave Access (WIMAX) network, the Internet, a Local Area Network (LAN), and a Wireless LAN (Wireless). Local Area Network), WAN (Wide Area Network), PAN (Personal Area Network), Bluetooth (Bluetooth) network, NFC (Near Field Communication) network, satellite broadcasting network, analog broadcasting network, DMB (Digital Multimedia Broadcasting) network, etc. It may include, but is not limited thereto, and may include various wired/wireless communication networks.

The device 10 is, for example, terminals possessed by users (eg, customers or business owners) using the device 10 for web pages, app pages, programs or applications related to code display (code display) (ie, It can be provided to each of the customer terminal and the business owner terminal).

For example, the business owner terminal 40 may transmit/receive data by interworking with each of a plurality of main devices 10 provided in a store operated by the business owner 41 through the network 20 . For example, the business owner terminal 40 may install a program or application (this app) related to the code expression provided from the device 10, and each of the plurality of devices 10 provided in the store by using the installed app. can control or manage its operation.

On the other hand, the customer terminal 30 does not require installation of a program or application (this app) related to the code expression provided from the device 10, and for example, an environment in which webpage access is possible (ie, Internet access is required). possible environment) by recognizing the code (expression code) expressed on the device 10 by the customer terminal 30, the service provided by the corresponding expression code (ie, through the webpage provided by the business owner 41) Services such as product ordering and payment) may be available. Hereinafter, a more detailed description of the device 10 is as follows.

The apparatus 10 may include a code generator 11, a display unit 12, a control unit 13, and a memory unit 14.

The code generating unit 11 may generate a code including a URL (URL of the webpage) for accessing the webpage.

Here, the web page may refer to a web page generated to enable use of a service provided by a store operated by the business owner 41, that is, a store-related web page operated by the business owner 41. Here, the service may refer to a service including ordering, payment, and the like of goods (products) provided in a store operated by the business owner 41 . In other words, the web page may refer to a page that enables online ordering and payment of products sold at stores operated by the business owner 41 . Hereinafter, such a web page will be referred to as an example of a web page operated by a business owner for convenience of explanation.

The code generating unit 11 includes the URL of such a web page (that is, the URL of a web page operated by the business owner 41, which is a web page that enables services such as ordering and payment of goods for a store operated by the business owner 41). code can be generated. As mentioned above, the code generated by the code generation unit 11 may preferably be a QR code, but is not limited thereto, and in addition to QR codes, barcodes or various forms (types) previously known or developed in the future code can be applied. Hereinafter, for convenience of explanation, it will be exemplified that the code generated by the code generator 11 of the device 10 is a QR code.

The code generated by the code generator 11 may include variable data that is variable for each preset time unit. Here, the preset time (unit of time) may be 1 minute as an example, but this is only an example to help understanding of the present invention, and is not limited thereto, and the set value of the preset time is the present device 10 It can be set and changed to various values by the manager who manages it.

Specifically, the code generated by the code generator 11 may include a fixed part area in which fixed data is recorded and a variable part area in which variable data is recorded. Here, the fixed data may mean address information of a URL corresponding to a webpage (ie, a webpage operated by a business owner). Variable data may refer to data generated using login authentication data required when logging in on a web page (ie, a web page operated by a business owner) in order to use a service provided on the web page (ie, a web page operated by a business owner). there is.

That is, the fixed part area within the code area generated by the code generating unit 11 is an area where address information of a URL of a web page is recorded (input), and may be otherwise referred to as a fixed header area or the like. On the other hand, the variable part area within the code area generated by the code generator 11 may be an area in which variable data obtained by encrypting login authentication data (ID and PW) is recorded. The variable data recorded in the variable part area is encrypted variable login authentication data generated by encrypting login authentication data using a one-time key value that changes every preset time unit, so it can be continuously and variably changed every preset time unit. there is.

Here, the login authentication data is information necessary for performing a login that is preset in the webpage for the use of the service provided by the webpage, and is, for example, a login-related ID and password (i.e., a login ID and password). (PW)) information. This log-in authentication data refers to ID and password (password) information preset by the business owner 41, which means information that allows the business owner 41, who is a member using the device 10, to log in to his account. can do.

In addition, the variable data in the code generated by the code generator 11 is encryption generated by encrypting login authentication data using a one-time key value that is changed (regenerated, variable) every predetermined time unit (eg, 1 minute). It may mean variable login authentication data. Here, the one-time key value is, for example, a time that is sequentially changed (ie, the current time at the time of generating the code, the currently set time) or, for example, a random value (randomly, randomly) generated through random number application ( For example, it may refer to information generated using a numeric value). Here, the currently set time information may be, for example, information identified through a real time clock (RTC) module (part, sensor) built into the device 10 .

In other words, the code generation unit 11 encrypts login authentication data (ie, login authentication data required when logging in on a web page) that enables the use of services provided on the web page when generating the code. A code can be generated by generating encrypted login authentication data, recording the generated encrypted login authentication data as variable data in a variable part area, and recording URL address information corresponding to a web page as fixed data in a fixed part area. can That is, the code generating unit 11 generates a code in which the generated encrypted login authentication data is recorded in the variable part area as variable data and the address information of the URL corresponding to the web page is recorded in the fixed part area as fixed data. can do.

At this time, as the variable data in the code generated by the code generator 11 is data generated by encrypting login authentication data using a one-time key value that changes every preset time unit, the code generator 11 accordingly The code generated by the control unit 13 and the display code displayed on the display unit 12 by the control unit 13 to be described below are codes generated (regenerated) to include variable data that varies per preset time unit (that is, a preset time unit). may be a variable code that is variable for each time).

The code generation unit 11 uses sequentially changing time (ie, currently set time information determined by the RTC module) to generate encrypted login authentication data (ie, variable data) for each preset time unit, or Alternatively, a one-time key value that is changed every preset time can be generated by using a random value generated through the application of random numbers, and then, by encrypting login authentication data pre-stored in the memory unit 14 with the generated anecdotal key value, encrypted Variable login authentication data (ie, variable data) can be created.

The control unit 13 receives login authentication data (ie, ID information and password (PW) information) required when logging in on a web page (ie, a web page operated by the business owner) from the business owner 41 (for example, input by typing) and stored in the memory unit 14 in advance. Alternatively, the control unit 13 may receive login authentication data input by the business owner 41 to the business owner terminal 40 from the business owner terminal 40 and store it in the memory unit 14 in advance. To this end, although not shown in the drawings, the apparatus 10 may further include an input unit (not shown) for receiving login authentication data information from the business owner 41 or the business owner terminal 40 .

The control unit 13 not only stores login authentication data in advance in the memory unit 14, but also changes (in particular, an expression code including variable data that is variable for each preset time unit) every preset time unit. ) and displayed on the display unit 12, encryption key information used when generating the display code and decryption key information necessary for decryption of variable data (ie, encrypted variable login authentication data) may be stored together. . Here, the encryption key information may mean a one-time key value (ie, a one-time key value that is changed every preset time unit) used when encrypting the aforementioned login authentication data.

The controller 13 may display the code generated by the code generator 11 as an expression code on the display unit 12 . In particular, the control unit 13 may display on the display unit 12 a code (ie, a variable code) generated (regenerated) by the code generator 11 for each predetermined time unit (eg, 1 minute unit). . The display unit 12 refers to a screen provided in the device 10, and may be implemented as a touch panel, an LCD touch panel, or the like. This display unit 12 may be otherwise referred to by terms such as a QR code display unit and an expression unit.

In addition, since the code generated by the code generator 11 is a variable code including variable data that is variable for each preset time unit, the webpage for the display code attempted in the customer terminal 30 (ie, the business owner Depending on the type of access attempt to the operating web page), availability of a service provided in the web page may be determined differently depending on the type of access attempt.

Here, the types of access attempts include a first type in which the customer terminal 30 tries to access the web page based on direct recognition of the display code displayed on the display unit 12, and the customer terminal 30 ) may include a second type of trying to access a web page based on indirect recognition (copying, hacking, etc.) of the display code displayed on the display unit 12.

Here, the direct recognition is when the customer terminal 30 recognizes (sensing) the expression code by directly photographing (recognizing) the expression code displayed on the display unit 12, for example, with a camera of the customer terminal 30. Or, as will be described later, by contacting (directly contacting) the customer terminal 30 to the device 10, the display code displayed on the display unit 12 of the customer terminal 30 in response to the contact is transmitted to the network. It may mean a case of being provided (transferred) from the present device 10 through (20).

At this time, 'taking' the expression code directly with the camera of the customer terminal 30 does not mean only shooting by clicking the shooting button with the camera of the customer terminal 30 turned on, but as an example. A state in which the display code is displayed on the screen of the customer terminal 30 for a certain period of time (eg, 2 seconds) without clicking a button, and the camera in the on state is projecting the display code with the camera for a predetermined period of time (eg, 2 seconds) It can be understood as a concept that includes.

On the other hand, indirect recognition takes a different path (except when the customer terminal 30 performs code recognition by directly photographing the expression code displayed on the display unit 12 with the camera of the customer terminal 30) ( method) may mean all cases in which recognition (sensing) of the expression code is performed. Exemplarily, the indirect recognition is i) in relation to the expression code displayed on the display unit 12, the duplicated (copied) expression code generated to correspond to the expression code is photographed by the camera of the customer terminal 30. (recognition) to recognize (sense) the expression code, ii) to hack the device 10 to recognize the expression code, and the like.

Here, the duplicated (copied) expression code has the same shape (shape) as the expression code expressed on the display unit 12 generated by, for example, processing the expression code displayed on the display unit 12 at least once. ), as an example, i) the display code displayed on the display unit 12, a camera provided in the customer terminal 30 or a photographing means separate from the customer terminal 30 (that is, , digital camera, scanner, etc.), which means the code included (displayed) in the captured image, ii) the code displayed on the output (e.g., paper, etc.) can

Exemplarily, the control unit 13 detects that the customer terminal 30 attempts access to the web page in the first type (ie, performing the first type of connection attempt based on direct recognition). In this case, in order to allow the customer 31 to use the service provided on the web page, for example, in response to the detection, the customer terminal 30 directly recognizes the display code (ie, the display code displayed on the display unit). Decryption key information required for encryption/decryption of variable data in the display code) may be extracted from the memory unit 14 and provided to the customer terminal 30 . According to this, when the customer terminal 30 attempts to access the web page in the first type, it receives decryption key information from the control unit 13 in response to the attempt, and then uses the provided decryption key information to Decrypts the variable data (encrypted variable login authentication data) included in the expression code directly recognized by the terminal 30, and uses the decrypted variable data (ie, the decrypted login authentication data) to provide information to the customer terminal 30. It is possible to perform automatic login for a web page (ie, a web page operated by the business owner) corresponding to the URL in the display code directly recognized by , payment, etc.) can be used.

On the other hand, if the controller 13 detects that the customer terminal 30 is attempting to access the web page in the second type (ie, performing the second type of connection attempt based on indirect recognition) , Connection failure indicating that access to the webpage corresponding to the URL in the display code indirectly recognized by the customer terminal 30 has failed, for example, in order to prevent the customer 31 from using the service provided in the webpage. The message can be displayed on the screen of the customer terminal 30 . That is, when it is detected that the customer terminal 30 is attempting to access the webpage in the second type, the control unit 13 indirectly recognizes the customer terminal 30 in response to the detection (i.e., the duplicated Decryption key information required for decryption of variable data in the expression code or hacked expression code may not be provided to the customer terminal 30 . According to this, when the customer terminal 30 attempts access to the webpage in the second type, the access itself to the webpage corresponding to the URL in the display code indirectly recognized by the customer terminal 30 in response to the attempt. may be blocked and access to the web page may not be possible, and automatic login to the web page may also not be performed, and through this, the service provided by the customer 31 on the web page (eg product order, payment, etc.) service) may be unavailable.

In addition, the control unit 13 can control the operation of each unit in the device 10. In addition, the control unit 13 may control each operation (for example, screen display) of the customer terminal 30 and the business owner terminal 40 interlocked with the device 10 through the network 20 .

According to the foregoing, the device 10 is a code display device that enables authentication (automatic login authentication) using a QR code and access to a web page, which will be otherwise referred to as a code display terminal, a disposable QR code display terminal, and the like. can In addition, the code displayed on the display unit 12 by the present device 10 may be differently referred to as a display code, a variable code (variable display code), and a one-time code (one-time QR code).

A QR code provided through a conventional QR code providing method (for example, a method of providing a QR code in a fixed format in which data cannot be changed by providing a QR code through paper printing, etc.) is a fixed form, so that the corresponding QR code After accessing the URL through the URL, the customer has to directly input the ID and PW, which makes it cumbersome and inconvenient for the customer using the service provided on the web page of the URL.

In contrast, the device 10 may divide the region of the code (QR code) generated by the code generator 11 into a fixed region and a variable region. At this time, the code generation unit 11 in the device 10 records the address information of the URL of the web page for accessing the web page (ie, the web page operated by the business owner) for the fixed part area when generating the code, , For the variable area, the parameter values of the ID and password entered for access to the web page (in particular, the ID and password for logging in to the accessed web page) are changed every preset time unit (for example, 1 minute). A code can be generated by recording encrypted variable login authentication data (ie, variable data) generated by encryption using a one-time key value. The controller 13 may display the code generated by the code generator 11 as an expression code on the display unit 12 .

In this way, the code provided by the device 10 (that is, the code generated by the code generator 11 and the code displayed on the display unit 12), the customer terminal 30 It may be provided so that the code provided by the device 10 cannot be copied and reused. In other words, the code provided by the device 10 provides access to a web page (the web page corresponding to the URL in the indirectly recognized expression code) by indirectly recognizing the expression code in the customer terminal 30. In the case of attempting to access in the second type, the customer terminal 30 is prevented from accessing and logging in to the corresponding webpage, and through this, it is possible to prevent the service provided from the webpage from being used.

The code provided by the device 10 may be, for example, a code provided to prevent hacking due to opening (OPEN, disclosure) of a fixed URL when accessing by the GET method. That is, the one-time key value that the code generation unit 11 considers when generating the code is information used for encryption of login authentication data, and may be an sn value that means a sequentially changed time or an arbitrary encryption key value. According to this, the code provided by the present device 10 is encrypted variable login authentication data (ie, encrypted ID information and encrypted password) encrypted with a one-time key value that is changed in predetermined time units (regular time units). information) as variable data, and accordingly, even if it is opened on the web (web page), it can be copied or copied so that it cannot be reused.

The code provided by the device 10 may be a variable code generated to prevent copying. The device 10 may be an electronic display device that generates and displays such a variable code on the display unit 12 . When the device 10 displays (displays, exposes) the generated code as an expression code on the display unit 12, the encrypted variable login authentication data as well as the fixed area where the fixed data is recorded are recorded as variable data. A code generated to include the modified variable region may be displayed on the display unit 12 as an expression code.

In other words, in displaying the generated code, the apparatus 10 adds an encrypted part (variable part area in which variable data is recorded) in addition to the fixed part (fixed part area) so that it can be displayed variably (i.e., Even if the code generated by the present device 10 is exposed in the middle through the display unit 12, Copying (recopying, duplicating) the expression code expressed (exposed) on the display unit 12 may make it impossible to use/reuse.

That is, the code provided by the device 10 is when the customer 31 directly recognizes the display code displayed on the display unit 12 of the device 10 with the customer terminal 30. (That is, only when the display code displayed on the display unit 12 is directly photographed with the camera of the customer terminal 30), to the web page corresponding to the URL in the display code directly recognized by the customer terminal 30 It can be a code generated and provided so that the customer 31 can use the service provided on the corresponding webpage based on the automatically logged in webpage. there is.

When direct recognition (direct shooting) of the display code displayed on the display unit 12 is performed in the customer terminal 30 (ie, when an access attempt is made in the first type at the customer terminal), the customer terminal ( 30) can succeed in accessing the web page corresponding to the URL in the directly recognized display code, and furthermore, automatic login can be made for the web page that has succeeded in accessing, and through this, the customer 31 can service can be made available.

On the other hand, when indirect recognition is performed in relation to the display code displayed on the display unit 12 in the customer terminal 30 (ie, when an access attempt is made in the second type at the customer terminal), the customer terminal 30 may fail to access the web page corresponding to the URL in the indirectly recognized display code, and accordingly, the customer 31 may not be able to use the service provided in the web page.

In the conventional QR code, when a customer accesses a webpage through a URL due to the use of a fixed code, the service of the webpage can be used only when the customer directly inputs an ID and PW for login. On the other hand, the code (display code) provided by the present device 10 automatically logs in when the customer terminal 30 attempts to access the first type, so that the customer is automatically logged in. Since it is not necessary to input the ID and PW separately, the inconvenience and trouble of the customer 31 who wants to use the service provided from the web page can be effectively resolved.

The display unit 12 in the present device 10 may display (expose, display, output) the code generated by the code generator 11 as an expression code. The display unit 12 may display a code (display code) to minimize power consumption of the device 10 using, for example, electronic ink, and regenerated every preset time unit (eg, 1 minute unit). Code (variable code) can be expressed. That is, in expressing the code generated by the code generator 11 as an expression code, the display unit 12 can minimize power consumption by utilizing electronic ink, and regenerates the display code every minute, for example. It can be displayed (re-marked).

For example, the control unit 13 encrypts unique login authentication data (i.e., unique ID and PW information) received through a communication unit (not shown) in the device 10 or pre-stored in the memory unit 14 using a one-time key value. The operation of the display unit 12 may be controlled so that the code generated by the code generator 11 is displayed on the display unit 12 as an expression code.

As described above, the memory unit 14 may store login authentication data received from the business owner terminal 40 or login authentication data input from the business owner 41 through the communication unit (not shown), as well as a code generator. In (11), the one-time key value (encryption key value) information and decryption key information used when generating the code can be stored and managed together.

The RTC module (not shown) in the present device 10 may provide information on the currently set time to the control unit 13 or the code generator 11, and also, for example, a random number generated (generated) by application The value (number) of may be provided to the controller 13 or the code generator 11.

A communication unit (not shown) in the device 10 may transmit/receive data with each of the customer terminal 30 and the business owner terminal 40 through the network 20 . The communication unit (not shown) may receive login authentication data from the business owner terminal 40, for example, and a one-time key value provided from an RTC module (not shown) (that is, an arbitrary value generated by applying a random number or a currently set time). information) can be received. In addition, the communication unit (not shown) may transmit and receive data with external terminals (eg, a customer terminal or a business owner terminal) through USB or WiFi, for example, and receive a QR code from the host terminal or login authentication data as an example. (ID, PW), and a one-time key value (ie, encryption key value) can be received. Here, the host terminal may mean the business owner terminal 40 .

In addition, the device 10 may include a power supply unit (not shown). The power supply unit (not shown) may be otherwise referred to as a battery unit or the like. A power supply unit (not shown) may supply (provide) power to the device 10 . The power supply unit (not shown) may supply power to the device 10 through a battery or the like, or receive power (external power) from the outside through USB (USB port) or DC at all times (that is, supply constant power). This can be provided to the device 10.

An input unit (not shown) in the device 10 may receive, for example, login authentication information from the business owner 41 by typing. Such an input unit (not shown) may be implemented as, for example, a touch panel of the display unit 12, or implemented as a physical button (eg, a keypad, etc.) provided on the device 10 separately from the display unit 12. . Such an input unit (not shown) may operate in a wake-up mode, for example, to minimize the battery of the power supply unit (ie, the battery unit) in the device 10 .

While the conventional QR code was generated in a fixed form (to include a unique URL), the code provided by the present device 10 is an ID capable of logging into the account of the business owner 41 as a member in the variable area. It may be a code generated by recording variable data (variable data variable per preset time unit) encrypting log-in authentication data (that is, data necessary for logging in to the website operated by the business owner), which is PW.

The apparatus 10 generates and provides a code including such variable data (that is, displays it on the display unit 12), so that it is displayed in relation to the code (display code) displayed on the display unit 12. Access attempts to arbitrarily access the webpage through copying (replication) or hacking (ie, when the customer terminal attempts to access the second type) can be blocked, so that the customer 31 can more safely and efficiently A web page (a web page operated by the business owner) may be made available.

As an example, a case in which a code of the device 10 is utilized when a customer 31 wants to order a menu in a restaurant will be described as an example.

First, most of the QR codes (i.e., conventional QR codes) prepared in restaurants, etc. conventionally print QR codes on paper, etc., and attach the paper with the QR code printed on the table in the restaurant (store), so that customers who visit the restaurant By recognizing the QR code printed on the paper with the customer terminal 30, the menu order is made. However, since such a conventional QR code can be copied and has a structure in which an order is placed and payment is made immediately, false orders may occur due to copying, and inconvenient that the customer must pay every time there is an additional order. exists, and after recognizing the QR code, the customer can directly input the preset ID and PW on the website into his or her own terminal, allowing the customer to order a menu.

On the other hand, according to the device 10, the business owner 41 can first install the device 10 on a table in the store he/she manages by attaching or the like. The present device 10 installed on a table in the store may display an expression code that is regenerated every preset time unit. Thereafter, the customer 31 seated on a chair of the table to which the device 10 is attached in the store is an example of a display code displayed on the display unit 12 of the device 10 with a camera of the customer terminal 30. The region of the display unit 12 of the present device 10 may be captured so that is included.

When the customer terminal 30 captures the area of the display unit 12 of the device 10 with the camera of the customer terminal 30 (ie, captures the display code displayed on the corresponding display unit), the customer terminal 30 , In response to the photographing, a web page capable of ordering a food menu sold in a store operated by the business owner 41 is accessed by accessing the web page corresponding to the URL in the photographed expression code and automatically logging in to the accessed web page. (That is, a web page operated by the business owner where food can be ordered) may be displayed on the screen of the customer terminal 30 . In other words, if the controller 13 detects that the customer terminal 30 has attempted to access the first type, in response to the detection, the control unit 13 can order a food menu (ie, a web page operated by a business owner that can order food). The operation of the customer terminal 30 may be controlled so that is displayed on the screen of the customer terminal 30 . The customer 31 may order food sold in the store or place an additional order (ordering additional food) based on the web page displayed on the screen of the customer terminal 30 (a web page operated by a business owner capable of ordering food). can

For example, when the controller 13 detects that the customer terminal 30 has attempted to access the first type, the web page (that is, the business owner 41 provides a web page where food menus can be ordered) is automatically logged in as a result. It is possible to display a web page on which the service to be used is available) on the screen of the customer terminal 30, and at this time, for the customer terminal 30 on which automatic login was made once, the web page (that is, a food menu order available) can be displayed. web page) may be continuously displayed on the screen of the customer terminal 30 for a preset time. Here, the preset time may be, for example, 30 minutes, but is not limited thereto, and preferably, from the time of one automatic login to the time of payment completion when payment for all orders ordered through the corresponding web page is completed. It may mean the time corresponding to the interval of .

As such, as the web page is displayed on the screen of the customer terminal 30 for a preset time period, this apparatus 10 after the customer 31 completes one order through the web page, and then the customer 31 ) wants to order additional food, without the need to photograph the expression code displayed on the display unit 12 of the device 10 again or to input login authentication data, only until payment is completed (expressed differently) , Additional orders (reorders) after the first order may be repeatedly performed a plurality of times without a limit to the number of times (only until the payment completion signal for the order is detected by the customer terminal 30).

Order items made by the customer 31 photographing the display code displayed on the display unit 12 of the device 10 (ie, all order details ordered or additionally ordered by the customer at the table where the device 10 is installed) may be displayed on the screen of the business owner terminal 40 and settled, for example. According to this, when the customer 31 tries to leave the store of the business owner 41 in which the device 10 is installed after placing an order or an additional order, the order items displayed on the screen of the business owner terminal 40 (that is, all orders) It is possible to pay (pay, settle) the total amount of the food ordered by the user at one time based on the details) or the settlement result (ie, the payment amount) for the corresponding order. In this case, the business owner terminal 40 may be a desktop PC or the like, but is not limited thereto, and may be a tablet PC or a payment POS terminal.

The device 10 may be otherwise referred to as a disposable QR display terminal, etc., and in particular, generate a code (QR code) including a fixed part area and a variable part area and display it on the screen of the display unit 12. there is. This device 10 can be applied to the field of code utilization.

In order to prevent the copying of the QR code, the device 10 generates and provides (expresses) a QR code that cannot be copied (that is, a QR code that cannot be accessed to the web page of the URL in the QR code with the copied QR code). can do. In addition, the device 10 provides encrypted variable login authentication data (ie, to prevent hacking due to opening of a fixed URL when accessing by the GET method) to prevent URL hacking (i.e., to prevent hacking by opening a fixed URL) A code (QR code) containing variable data) can be generated and displayed. That is, in order to prevent URL hacking, the device 10 may display the log-in authentication data in an encrypted state on the display unit 12 or transmit it to the customer terminal 30 .

This device 10 may be a device that displays a variable code that cannot be copied using an electronic display device. In displaying the generated code (QR code), the apparatus 10 adds an encrypted part in addition to the fixed part so that the QR code is variably changed and displayed (ie, expresses a variable code), Even if the corresponding QR code is exposed, it can be copied (re-copied) to make reuse impossible. This device 10 may be applicable by replacing the case of using a conventionally printed fixed code (bar code, QR code) or using a fixed code in an electronic device.

The code provided by the device 10 may be an electronic QR code provided electronically. The customer 31 photographs the expression code displayed on the display unit 12 of the device 10 with the camera of the customer terminal 30 to connect to the web page corresponding to the URL in the expression code and automatically log in to the web page. Services provided by the page may be available.

Alternatively, the customer 31 sees the display code displayed on the display unit 12 of the device 10 through a beacon or RFID tag by bringing the customer terminal 30 into contact with the front of the device 10. It may be obtained by being provided from the device 10 . In other words, when the controller 13 detects that the customer terminal 30 is in contact with the front of the device 10, for example, beacon, RFID, NFC, Bluetooth, BLE, WIFI, UWB (Ultra Wide Band), etc. The display code displayed on the display unit 12 of the device 10 may be provided to the customer terminal 30 through a short-range wireless communication technology of the present invention. Then, based on the display code provided from the present device 10, the service provided by the corresponding web page can be used by accessing the web page corresponding to the URL in the corresponding display code and automatically logging in to the accessed web page. can

For example, the device 10 may include two pressure sensors disposed spaced apart from each other on the front surface of the body of the device 10 . The controller 13 may monitor pressure values measured by each of the two pressure sensors. At this time, the control unit 13, when the pressure values measured by each of the two pressure sensors satisfy a preset condition, the code provided by the customer 31 through the device 10 (that is, on the display unit) It is recognized that the expressed expression code) is desired to be provided (transmitted) to the customer terminal 30 through the above-described short-range wireless communication, and the pressure values measured by each of the two pressure sensors satisfy the preset condition. The display code displayed on the display unit 12 may be provided to the customer terminal 30 through short-range wireless communication at the detected time point (this is referred to as the pressure satisfaction time point for convenience of explanation in the description below).

Here, the preset condition may mean a condition in which pressure values measured by each of the two pressure sensors are measured as pressure values within a preset pressure range for a preset time (eg, 3 seconds) or more.

In addition, the lower limit value of the preset pressure range (ie, the lower limit pressure value) is, for example, a smartphone having the lightest weight among conventionally existing (ie, existing on earth) smart phones on the front side of the device 10. It may mean a pressure value applied to any one of the two pressure sensors (a pressure value measured by any one pressure sensor) when the two pressure sensors provided on the part are seated on the upper surface. On the other hand, the upper limit value of the preset pressure range (i.e., the upper limit pressure value) is, for example, a smartphone having the heaviest weight among conventional smart phones, two pressure sensors provided on the front part of the device 10 It may mean a pressure value (a pressure value measured by any one pressure sensor) applied to any one of the two pressure sensors when it is seated on the upper surface of the .

In the above description, the smart phone having the lightest weight and the smart phone having the heaviest weight may be, for example, a smart phone selected by the manager who manages the device 10 among various types of smart phones that exist in the prior art. In addition, the specific numerical value of the weight of each smartphone or the pressure value measured by any one pressure sensor when each smartphone is seated on the front part can be derived by an experiment by a manager, for example. In addition, the numerical values of the upper and lower limits of the preset pressure range are not limited thereto, and may be set and changed in various ways by a manager who manages the apparatus 10 .

According to this, the device 10 may be installed (equipped with, attached) to one area on a table in a store. In particular, the device 10 may be installed in one area on the table so that the display unit 12 is parallel to the top surface of the table, for example. As the device 10 is installed on the table in this way, for example, the customer 31 seated on a chair at the table where the device 10 is installed accidentally sees the customer 31 using the customer's hand or arm (elbow). There may be cases where the front part of the device 10 is pressed (in particular, the two pressure sensors provided on the front part). In this case, when the front part of the device 10 is pressed by the customer 31, the pressure value measured through the two pressure sensors may have a value exceeding the upper limit of the aforementioned preset pressure range.

As such, if the pressure value measured by each of the two pressure sensors is measured as a value exceeding the upper limit of the preset pressure range, the control unit 13 converts this to a code provided by the customer 31 through the device 10. Instead of recognizing that the customer terminal 30 possessed by the customer is seated on the front of the device 10 in order to receive the customer terminal 30, the customer 31 mistakenly uses his or her hand or arm It is recognized that the front part of the device 10 is pressed, and in this case, the code provided through the device 10 can be prevented from being provided to the customer terminal 30 through short-range wireless communication.

On the other hand, when the control unit 13 detects that the pressure values measured by each of the two pressure sensors satisfy a preset condition, the customer 31 sends a code provided through the device 10 to the customer terminal ( 30), recognizing that the customer's terminal 30 possessed by the user is seated on the front of the device 10 in order to be provided, and in this case, the display code displayed on the display unit 12 at the time when the pressure is satisfied may be provided (transmitted) to the customer terminal 30 through short-range wireless communication.

At this time, the controller 13 detects that the pressure values measured by each of the two pressure sensors satisfy a preset condition (ie, the pressure is satisfied), the customer seated on the front of the device 10 When the screen of the terminal 30 is turned off (OFF) and it is detected that the NFC function of the customer terminal 30 is OFF, the NFC function of the customer terminal 30 is forcibly changed to the ON state and the customer terminal 30 ) After forcibly changing the screen to an ON state, and then providing the display code displayed on the display unit 12 to the customer terminal 30 through short-range wireless communication such as NFC, the customer terminal 30 It is possible to control the operation of the customer terminal 30 so that the web page corresponding to the URL in the display code (in particular, the web page operated by the business owner where automatic login is completed and product ordering is possible) is automatically displayed on the screen of , the customer 31 can immediately place an order on the web page.

According to this, the customer 31 simply places the customer terminal 30 in a state where the NFC function is turned off and the screen is turned off on the front of the device 10 (ie, puts it on), the device By receiving (transmitting) the display code displayed on the display unit 12 of (10) to the customer terminal 30 through NFC, direct recognition of the display code is performed (ie, the first type of contact attempt is made). ), and can immediately place an order based on a webpage automatically displayed on the screen of the customer terminal 30 (a webpage operated by the business owner for which automatic login has been completed). In this device 10, for example, when the customer 31 directly turns on the camera of the customer terminal 30 to photograph the expression code provided by the device 10, and performs direct recognition of the expression code, and In contrast, it is more convenient and easier than that to simply place the customer terminal 30, which is its own terminal, on the front of the device 10 so that direct recognition of the display code can be performed (ie, immediate ordering is possible). Web pages can be provided to customers).

In addition, the device 10 may include a coupling portion (not shown) provided on the rear surface of the body portion of the device 10 . A display unit 12 may be provided on the upper surface of the body of the device 10 .

The binding unit may be provided on the rear surface of the body of the device 10 to enable the installation of the device 10 at an installation location desired by the business owner 41 . For example, the business owner 41 may install (arrange) the apparatus 10 on any one table among the tables in the store he/she manages. At this time, the binding unit may be a member provided so that the device 10 can be coupled to the corresponding table. The binding unit may be provided to be detachable, for example, and may be provided in a sticker form, tongs form, a form to be coupled by fitting, a form to be attached by air pressure, and the like.

In the present invention, the coupling portion may be provided with a plastic member in the shape of 'c'. [0021] When the coupling part is described based on a 'c' shape, an upper member and a lower member disposed to face each other, an intermediate member connecting one end of the upper member and one end of the lower member, and an intermediate member between the upper member and the lower member. A space portion provided by the member may be included. In addition, the binding unit may include a distance adjusting unit for adjusting the distance between the upper member and the lower member, as will be described later. The operation of the distance adjusting unit may be controlled by the control unit 13 in association with two fingerprint recognition sensors (ie, a first fingerprint recognition sensor and a second fingerprint recognition sensor) to be described later.

The rear surface of the body part of the device 10 may be coupled to the upper surface of the upper member, and such a binding part may be open at 3 o'clock, for example.

The device 10 may be installed on the table by inserting the binding part into the side part of the table so that the side part of the table is located in the space within the binding part through the open part of the binding part.

At this time, the device 10 may include the following functions so that the business owner 41 can easily and conveniently install the device 10 on the table.

For example, the device 10 may include a first fingerprint recognition sensor provided on one area of the left side of the body and a second fingerprint recognition sensor provided on one area of the right side of the body. The body of the device 10 may be provided in a small size that can be held by a person's hand, and may be provided in a size corresponding to or smaller than that of a typical smart phone.

Prior to the installation of the device 10, the controller 13 first recognizes a fingerprint from the business owner 41, for example, for a business owner 41 who wants to purchase the device 10 and install it on a table. The fingerprint information on the first finger of the business owner 41 is received through the sensor as pre-registered first fingerprint information pre-registered in relation to the first fingerprint recognition sensor and stored in the memory unit 14 in advance, and the business owner 41 Consultation information on the second finger of the business owner 41 is received as pre-registered second fingerprint information related to the first fingerprint recognition sensor through the second fingerprint recognition sensor and stored in the memory unit 14 in advance. can

Here, for example, assuming a situation where the business owner 41 holds the body of the device 10 with the display unit 12 facing upwards with his left hand, the first finger is the middle finger of the business owner 41's left hand. , and the second finger may be the thumb of the left hand of the business owner 41 . As another example, assuming a situation where the business owner 41 holds the body of the device 10 with the display unit 12 facing upwards with his right hand, the first finger is the thumb of the business owner 41's right hand. and the second finger may be the middle finger of the right hand of the business owner 41 . Hereinafter, for convenience of description, it will be assumed that the first finger is the middle finger of the left hand and the second finger is the thumb of the left hand.

That is, the control unit 13 converts the fingerprint information for the first finger (the middle finger of the left hand) and the second finger (the thumb of the left hand) received from the business owner 41 to the registered first fingerprint information and the previously registered second finger, respectively. 2 can be stored in the memory unit 14 as fingerprint information.

After storing the fingerprint information, the business owner 41 intends to install the apparatus 10 on the table where installation is desired, and the side part of the table within the space of the binding part within the apparatus 10 on the side part of the table where installation is desired. can be placed in this position.

In this state, the controller 13, for example, when it is detected that the user's first fingerprint information is input as the first input fingerprint information for a predetermined time (eg, 2 seconds) through the first fingerprint recognition sensor, the memory unit In (14), pre-registered first fingerprint information pre-registered in relation to the first fingerprint recognition sensor and first input fingerprint information are compared, and if it is determined that they match each other, this is determined as the distance between the upper and lower members in the coupling part. By recognizing it as a signal requesting adjustment to narrow, the operation of the distance adjuster in the binding unit may be controlled to operate in a first type that adjusts the distance between the upper member and the lower member to become closer. At this time, an inner pressure sensor may be provided in one area of the inner surface of the lower member, and the control unit 13 controls the distance control unit to control the first pressure value only until the pressure value measured by the inner pressure sensor meets a preset pressure value. You can control it to work as a type. As the distance adjustment unit is controlled to be of the first type, the fastening unit is fixedly coupled to the table, and thus installation of the apparatus 10 to the table can be completed.

On the other hand, the control unit 13 inputs the user's first fingerprint information as first input fingerprint information for a predetermined time (eg, 2 seconds) through the first fingerprint recognition sensor, for example, and the second fingerprint recognition sensor through the second fingerprint recognition sensor. When it is detected that the second fingerprint information of the user is input as the second input fingerprint information for a set time period (eg, 2 seconds), the pre-registered first fingerprint recognition sensor is pre-registered in the memory unit 14. The fingerprint information and the first input fingerprint information are compared to determine that they match each other, and the previously registered second fingerprint information pre-registered in the memory unit 14 in relation to the second fingerprint recognition sensor is compared with the second input fingerprint information. If it is determined that they coincide with each other, this is recognized as a signal requesting adjustment to widen the distance between the upper and lower members in the coupling unit, and the operation of the distance adjusting unit in the coupling unit is performed to increase the distance between the upper and lower members. It can be controlled to operate in a regulated second type. As the distance adjustment unit is controlled to be the second type, the binding unit fixedly coupled to the table becomes detachable from the table, and accordingly, the apparatus 10 installed on the table can be separated (separated) from the table.

According to this, the present device 10 uses two fingerprint recognition sensors (a first fingerprint recognition sensor and a second fingerprint recognition sensor), and the currently input user's fingerprint information is pre-registered in the memory unit 14. , but only when certain conditions are met (that is, only when the fingerprint information of the business owner is input through the fingerprint recognition sensor), the distance adjusting unit can be controlled to operate in the first type or the second type. Only the user corresponding to the pre-registered fingerprint information pre-registered in the unit 14 (that is, the business owner, for example) can easily install and release the device 10 on the table. This device 10 can, for example, prevent a customer from maliciously trying to take the device 10 installed on the table (that is, stealing it) or separating it from the table.

In addition, in controlling the distance adjuster to operate in the first type, the control unit 13 controls the distance adjuster to operate in the first type only until the pressure value measured by the inner pressure sensor meets the preset pressure value as described above. can be controlled to operate. This can provide installation convenience for the business owner 41 who is the user who installs the device 10 .

At this time, the control unit 13 determines that the pressure value measured by the inner pressure sensor is, for example, after the time during which the pressure value measured by the inner pressure sensor is measured as a preset pressure value is maintained for a certain period of time (eg, 2 hours). When it is detected that it is out of the error tolerance range (error tolerance pressure value range) set based on the preset pressure value, it is recognized as a state in which the present device 10, which is fixedly installed on the table, is likely to deviate from the table ( determination), the binding confirmation request message including the identification information of the device 10 may be transmitted to the business owner terminal 40 . Here, the identification information of the device 10 may mean unique identification information given to the device 10 . The binding confirmation request message may be illustratively information such as 'It is determined that the present device installed in a certain number of tables is not properly bound, so please check'.

This device 10 sends a binding confirmation request message to a specific device that is not normally coupled to the table and is likely to be separated from among a plurality of devices installed in the store operated by the business owner 41. It is possible for the business owner 41 to immediately check the device (abnormality detection device) and take action.

In addition, the present device 10 may include a laser distance measurement sensor provided in one area on the front portion of the body portion.

The laser distance measurement sensor of the device 10 directly recognizes the display code displayed on the display unit 12 through the irradiated laser by irradiating a laser from the front part toward the front with the camera of the customer terminal 30. The distance to the customer terminal 30 located in the front can be measured. That is, the laser distance measuring sensor, through the irradiated laser, the distance from the position of the front part of the body of the device 10 provided with the laser distance measuring sensor to the position of the customer terminal 30 located in front of the body ( distance) can be measured.

When the customer 31 tries to access the web page in the first type (ie, when recognizing the display code through direct shooting with the camera of the customer terminal), for example, the camera of the customer terminal 30 After turning on, the first type of connection can be attempted by photographing the expression code with a camera in the on state.

At this time, the control unit 13 determines that the distance from the laser distance measurement sensor to the corresponding customer terminal (ie, the customer terminal with the camera on) with respect to the customer terminal 30 in which the camera is on is a preset distance. If it is detected as belonging to the range (for example, a distance range of 5 cm or more and 30 cm or less), it is recognized that the customer 31 is attempting to access the web page as the first type (ie, to directly photograph the display code) When it is detected that the measured distance belongs to a preset distance range, the display code displayed on the display unit 12 may be immediately provided (transmitted) to the customer terminal 30 .

According to this, when a user usually tries to recognize a conventional barcode or QR code with the camera of his or her terminal, the camera is located too far or too close from the barcode, so the auto focus function is not properly performed. As the camera does not recognize the barcode well, the user carrying the camera had to move the camera around and find a position where the camera can better recognize the barcode, which is inconvenient for the user performing the code recognition. There was an aspect that caused In addition, in the prior art, even in exchanging specific information through short-range wireless communication (for example, when making a payment with a smartphone), even if the camera is brought close to the NFC reader, the NFC reader does not immediately recognize the camera, so the NFC reader There were inconveniences such as waiting for the camera to be detected, moving the camera around to make it recognized, or performing a repayment.

In order to solve this problem, the control unit 13 controls the distance from the location of the front side of the device 10 (in particular, the location of the laser distance measurement sensor) to the customer terminal 30 in which the camera is on (ie, the front side If it is detected that the distance to the location of the customer terminal where the camera located in the front is on is within the preset distance range, it is recognized as the first type of attempt by the customer 31 to access the web page, and immediately The display code may be provided to the customer terminal 30 .

At this time, the control unit 13 determines, for example, whether the customer terminal 30 is located in front of the front of the device 10, for example, of the image obtained from the image sensor provided in one area of the front of the device 10. This can be determined through real-time analysis. In addition, the control unit 13 determines whether the camera of the customer terminal 30 located in front of the front part is in an on state, for example, from the customer terminal 30 located in front of the front part to the network 20 (including wireless short-range communication as an example). It may be determined based on state information of the customer terminal acquired through the network). Here, the status information of the customer terminal may include information on whether the camera of the customer terminal is on or off.

This device 10 uses a laser distance measuring sensor, so that the customer does not have to find a location where the barcode or QR code can be recognized well while moving the camera around as in the prior art, Direct recognition of the expression code in the terminal 30 can be performed more quickly and immediately.

Hereinafter, based on the details described above, the operation flow of the present invention will be briefly reviewed.

2 is an operational flowchart of a code display method according to an embodiment of the present invention.

The code display method shown in FIG. 2 can be performed by the device 10 described above. Therefore, even if the content is omitted below, the description of the device 10 can be equally applied to the description of the code display method.

Referring to FIG. 2 , in step S11, the code generation unit may generate a code including a URL for accessing a web page.

Here, the code generated by the code generator may include variable data that is variable for each preset time unit.

Next, in step S12, the control unit may display the code generated in step S11 as an expression code on the display unit.

In the foregoing description, steps S11 and S12 may be further divided into additional steps or combined into fewer steps, depending on the implementation of the present invention. Also, some steps may be omitted if necessary, and the order of steps may be changed.

The code display method according to an embodiment of the present invention may be implemented in the form of program instructions that can be executed by various computer means and recorded on a computer readable medium. The computer readable medium may include program instructions, data files, data structures, etc. alone or in combination. Program instructions recorded on the medium may be those specially designed and configured for the present invention or those known and usable to those skilled in 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 hardware devices specially configured to store and execute program instructions, such as magneto-optical media, and ROM, RAM, flash memory, and the like. Examples of program instructions include high-level language codes that can be executed by a computer using an interpreter, as well as machine language codes such as those produced by a compiler. The hardware devices described above may be configured to act as one or more software modules to perform the operations of the present invention, and vice versa.

In addition, the above code display method may be implemented in the form of a computer program or application stored in a recording medium and executed by a computer.

The above description of the present invention is for illustrative purposes, and those skilled in the art can understand that it can be easily modified into other specific forms without changing the technical spirit or essential features of the present invention. will be. Therefore, the embodiments described above should be understood as illustrative in all respects and not limiting. For example, each component described as a single type may be implemented in a distributed manner, and similarly, components described as distributed may be implemented in a combined form.

The scope of the present invention is indicated by the following claims rather than the detailed description above, and all changes or modifications derived from the meaning and scope of the claims and equivalent concepts should be construed as being included in the scope of the present invention. do.

100: code management system
10: code display device
11: code generation unit
12: display unit
13: control unit
14: memory unit
30: customer terminal
40: business owner terminal

Claims (3)

As a code display device,
A code generator for generating a code including a URL for access to a web page, and
A control unit for displaying the generated code as an expression code on a display unit;
As the code is a variable code generated so that copying is impossible and includes variable data that is variable for each predetermined time unit to prevent hacking due to opening of a fixed URL when accessing by the GET method, the attempted expression in the customer terminal It is created so that the availability of the service provided in the webpage is determined differently depending on the type of the access attempt by being influenced by the type of access attempt to the webpage for the code,
The access attempt types include a first type in which a customer terminal attempts to access the web page based on direct recognition of an expression code displayed on the display unit, and a first type in which the customer terminal attempts to access the display unit on the display unit. A second type of attempting to access the web page based on indirect recognition of the displayed expression code;
Direct recognition in the first type is when the customer terminal recognizes the display code by directly photographing and recognizing the display code displayed on the display unit with the camera of the customer terminal, or when the customer terminal is directly connected to the code display device. In response to the contact by contact, it means that the customer terminal receives the display code displayed on the display unit from the code display device through the network,
Indirect recognition in the second type, in relation to the expression code displayed on the display unit, when recognizing the expression code by photographing the copied expression code generated to correspond to the expression code with the camera of the customer terminal, Including the case of recognizing the display code by hacking the code display device,
The copied expression code is a code having the same shape as the expression code displayed on the display unit generated by processing the expression code displayed on the display unit at least once or more, and is an expression code displayed on the display unit. A code displayed in an expression code photographed image generated by photographing with a camera provided in the customer terminal or a photographing means separate from the customer terminal, or a code displayed in an output obtained by printing the expression code photographed image,
The control unit,
If it is detected that the customer terminal is attempting to access the webpage in the first type, the customer terminal responds to the detection of the first type of attempt so that the customer can use the service provided in the webpage. Decryption key information necessary for encryption and decryption of variable data in the directly recognized expression code is extracted from the memory unit and provided to the customer terminal, and through the provision of the decryption key information, the customer terminal accesses the web page in the first type. In response to the attempt, the variable data included in the expression code directly recognized by the customer terminal is decoded using the decryption key information provided from the control unit in response to the attempt, and the variable data directly recognized by the customer terminal is expressed using the decrypted variable data. Enables customers to use the services provided on the webpage by automatically logging in to the webpage corresponding to the URL in the code;
If it is detected that the customer terminal is attempting to access the webpage in the second type, the URL corresponding to the URL in the display code indirectly recognized by the customer terminal is used to prevent the customer from using the service provided on the webpage. A connection failure message indicating that access to the web page has failed is displayed on the screen of the customer terminal, but in response to the detection of the second type of attempt, necessary for encryption and decryption of variable data in the display code indirectly recognized by the customer terminal As the decryption key information is not provided to the customer terminal, access to the webpage corresponding to the URL in the display code indirectly recognized by the customer terminal is blocked, so access to the webpage and automatic login to the webpage are not performed. A code display device that prevents the customer from using the service provided on the web page by preventing the customer from using the service. According to claim 1,
The code includes a fixed part area in which fixed data is recorded and a variable part area in which the variable data is recorded;
The fixed data is address information of the URL corresponding to the web page,
The variable data is data generated using login authentication data required when logging in on the webpage to use the service provided on the webpage, code display device. According to claim 2,
The variable data,
Code display device that is encrypted variable login authentication data generated by encrypting the login authentication data using a one-time key value that is changed for each predetermined time unit.

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