KR20230140179A - Control method for receipt printer using wired and wireless router, and computer program for executing the control method - Google Patents

Abstract

A receipt printer control method and a computer program for executing the control method are provided. The present invention relates to a technology in which a wired or wireless router within a retail store controls a receipt printer within the retail store. The receipt printer control method includes receiving, from a payment brokerage server, a payment completion notification indicating that the payment request has been successfully approved by the payment provider server. A step of generating a receipt output command corresponding to the payment completion notification, and transmitting the receipt output command to the receipt printer.

Description

Receipt printer control method using a wired/wireless router and a computer program executing the control method {CONTROL METHOD FOR RECEIPT PRINTER USING WIRED AND WIRELESS ROUTER, AND COMPUTER PROGRAM FOR EXECUTING THE CONTROL METHOD}

The present invention relates to a control method of a receipt printer and a computer program that executes the control method. More specifically, when a wired or wireless router placed in a retail store receives a payment completion notification, the transaction amount for the completed transaction is indicated. This relates to technology for controlling receipt printers placed within the same retail store to print receipts.

Recently, in order to overcome the inconveniences and limitations of payment methods using traditional payment methods such as credit cards, various user-friendly payment methods, so-called 'simple payment (or simple payment services)', have been proposed and commercialized one after another. there is.

QR code payment can be said to be the most common as a simple payment method that replaces existing payment methods.

QR code payment can be broadly divided into two types, one is CPM (Customer Presented Mode) and the other is MPM (Merchant Presented Mode). CPM refers to a method in which a buyer executes a payment app installed on the buyer's terminal and makes payment for the purchased product by scanning the QR code displayed on the screen of the buyer's terminal through a scanner within the store. In contrast, in MPM, the purchaser scans a fixed QR code placed at the store or a variable QR code that is newly displayed on the screen of the store's terminal at each transaction through the purchaser's terminal, and then enters the transaction amount into the purchaser's terminal to purchase the product. This is a method of making payments. For example, 'Zero Pay', a simple payment service led by the Korean government, adopts MPM and CPM using fixed/variable QR codes.

Meanwhile, the entire payment process using the MPM-based QR code payment service is carried out independently of the existing POS (Point Of Sale) terminal or CAT (Credit Authorization Terminal), so even if payment for the purchased product is completed normally, the store will not notify the buyer. Receipts cannot be issued immediately. Because of this, not only is it difficult for the buyer to quickly check whether payment for the purchased product has been completed properly, but even if payment has been made for a transaction amount that the buyer or seller mistakenly entered as higher than the actual price, the buyer is not immediately aware of this. If you fail to do so, there is a high possibility that you will miss the opportunity to cancel the payment and suffer financial loss. Of course, CPM also has the same problems as MPM.

The present invention was designed to solve the problems of the prior art described above. Regardless of whether a POS terminal or CAT is installed in the store, the wired or wireless router in the store completes the payment from a remote payment brokerage server or payment provider server. A method of controlling a receipt printer placed within the same retail store and a computer program that executes the control method so that upon receipt of the notification, a receipt indicating the amount of the purchased product, etc. can be immediately issued to the purchaser according to the content of the notification of payment completion. The purpose is to provide

In addition, the present invention selects one of a plurality of receipt formats with different visibility according to at least one of the transaction amount and transaction date and time included in the payment completion notification, and outputs the receipt with the selected receipt format to the receipt printer. The object is to provide a control method for a receipt printer that commands and a computer program that executes the control method. Here, each receipt format has a transaction amount area, and the plurality of receipt formats have different printing styles (eg, font size, font type, etc.) applied to each transaction amount area.

Other objects and advantages of the present invention can be understood from the following description and will be more clearly understood by practicing the present invention. In addition, it will be readily apparent that the objects and advantages of the present invention can be realized by means and combinations thereof indicated in the claims.

According to one aspect of the present invention, a method of controlling a receipt printer within a retail store by a wired or wireless router within a retail store includes the steps of receiving, from a payment brokerage server, a payment completion notification indicating that the payment request has been successfully approved by the payment provider server, the payment; It includes generating a receipt output command corresponding to a completion notification, and transmitting the receipt output command to the receipt printer.

Generating the receipt output command includes: confirming the transaction amount included in the payment completion notification; selecting one receipt format among a plurality of receipt formats based on the transaction amount; and mapping the contents of each notification item of the payment completion notification to the selected receipt format, thereby generating the receipt output command.

The step of generating the receipt output command includes checking the transaction date and time included in the payment completion notification, selecting one receipt format among a plurality of receipt formats based on the transaction date and time, and notifying the payment completion. It may include mapping the contents of each notification item to the selected receipt format and generating the receipt output command.

The step of generating the receipt output command includes checking the transaction amount and transaction date and time included in the payment completion notification, and selecting one receipt format among a plurality of receipt formats based on the transaction amount and the transaction date and time. It may include mapping the contents of each notification item of the payment completion notification to the selected receipt format and generating the receipt output command.

The step of selecting one receipt format among the plurality of receipt formats includes applying a first scoring rule to the transaction amount to determine a first score corresponding to the transaction amount, and applying a second scoring rule at the transaction date and time. Applying to determine a second score corresponding to the transaction date and time, combining the first score and the second score to determine a final score; and selecting a receipt format mapped to the final score among the plurality of receipt formats.

The step of generating the receipt output command includes confirming buyer identification information included in the payment completion notification, acquiring a payment cancellation frequency mapped to the buyer identification information, and based on the payment cancellation frequency, a plurality of It may include the step of selecting one of the receipt formats, and mapping the contents of each notification item of the payment completion notification to the selected receipt format to generate the receipt output command.

The payment cancellation frequency may represent the number of payment cancellations or payment cancellation rate during a recent predetermined period.

The plurality of receipt formats may have different printing styles applied to each transaction amount area. The printing style is one or a combination of two or more of font size, font type, font thickness, font italics, and font underlining.

The wired/wireless router may be connected to the payment brokerage server through a wireless communication channel and may be connected to the receipt printer through a wired communication channel.

A computer program according to another aspect of the present invention causes a wired or wireless router within a retail store to execute a method of controlling a receipt printer within the retail store. The receipt printer control method includes receiving, from a payment mediation server, a payment completion notification indicating that the payment request has been normally approved by the payment provider server, generating a receipt output command corresponding to the payment completion notification, and the receipt. and transmitting an output command to the receipt printer.

According to at least one of the embodiments of the present invention, when the wired or wireless router in the store receives a payment completion notification from a remote payment brokerage server or payment provider server, regardless of whether a POS terminal or CAT is installed in the store. By controlling the receipt printer placed within the same retail store, a receipt indicating the amount of the purchased product can be immediately issued to the buyer according to the content of the payment completion notification. Accordingly, even if the buyer pays through a simple payment method such as MPM or CPM using a QR code, he or she will immediately receive a receipt from the store and check whether the transaction amount has been entered incorrectly, just like traditional payment methods such as cash or credit card. By quickly identifying the transaction, you can have the opportunity to correct the transaction amount by canceling the payment if necessary.

In addition, according to at least one of the embodiments of the present invention, one of a plurality of receipt formats with different visibility is selected according to at least one of the transaction amount and transaction date and time included in the payment completion notification, and the selected receipt format is selected. You can command the receipt printer to print a receipt with . Each receipt format has a transaction amount area, and multiple receipt formats have different printing styles (e.g., font type, font size) applied to each transaction amount area. In other words, for each transaction, the font size of the transaction amount printed in the transaction amount area of the receipt is automatically changed according to the value of the transaction amount included in the payment completion notification and/or the time zone of the transaction date and time, so that the buyer can view the transaction amount through the receipt. It can be helpful in checking for incorrect input.

In addition, according to at least one of the embodiments of the present invention, the payment cancellation frequency mapped to the buyer identification information included in the payment completion notification is acquired from the payment mediation server, and one of the plurality of receipt formats corresponding to the payment cancellation frequency is used. You can choose a receipt format. The payment cancellation frequency indicates how frequently a buyer with buyer identification information cancels a previously completed payment. The main cause of a payment cancellation event is an incorrect input of the transaction amount by the buyer or seller. By printing a receipt with a receipt format that changes depending on the transaction amount, the buyer's attention is drawn to the transaction amount displayed on the receipt. It can be ventilated.

The effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description of the claims.

The following drawings attached to this specification illustrate preferred embodiments of the present invention, and serve to further understand the technical idea of the present invention together with the detailed description of the invention described later, so the present invention includes the matters described in such drawings. It should not be interpreted as limited to only .
1 is a diagram illustrating the configuration of a payment system according to an embodiment of the present invention.
FIG. 2 is a flowchart illustrating the entire payment process for each transaction performed in the payment system of FIG. 1 by way of example.
Figure 3 is a flowchart illustrating an exemplary method in which a wired or wireless router generates a receipt output command corresponding to a payment completion notification according to an embodiment of the present invention.
Figures 4 to 6 are drawings referenced in explaining the method of Figure 3.
Figure 7 is a flowchart illustrating an exemplary method in which a wired or wireless router generates a receipt output command corresponding to a payment completion notification according to another embodiment of the present invention.
FIG. 8 is a diagram referenced in explaining the method of FIG. 7.
FIG. 9 is a flowchart illustrating an exemplary method in which a wired or wireless router generates a receipt output command corresponding to a payment completion notification according to another embodiment of the present invention.
FIG. 10 is a diagram referenced in explaining the method of FIG. 9.
FIG. 11 is a flowchart illustrating an exemplary method in which a wired or wireless router generates a receipt output command corresponding to a payment completion notification according to another embodiment of the present invention.
FIG. 12 is a diagram referenced in explaining the method of FIG. 11.

Details regarding the purpose and technical configuration of the present invention and its operational effects will be more clearly understood by the following detailed description based on the drawings attached to the specification of the present invention. Embodiments according to the present invention will be described in detail with reference to the attached drawings.

The embodiments disclosed herein should not be construed or used as limiting the scope of the present invention. It is obvious to those skilled in the art that the description, including embodiments, of this specification has various applications. Accordingly, any embodiments described in the detailed description of the present invention are illustrative to better explain the present invention and are not intended to limit the scope of the present invention to the embodiments.

The functional blocks shown in the drawings and described below are only examples of possible implementations. Other functional blocks may be used in other implementations without departing from the spirit and scope of the detailed description. Additionally, although one or more functional blocks of the present invention are shown as individual blocks, one or more of the functional blocks of the present invention may be a combination of various hardware and software components that perform the same function.

Terms containing ordinal numbers, such as first, second, etc., are used for the purpose of distinguishing one of the various components from the rest, and are not used to limit the components by such terms.

In addition, the expression including certain components is an “open” expression and simply refers to the presence of the corresponding components, and should not be understood as excluding additional components.

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

Figure 1 is a diagram illustrating the configuration of the payment system 10 according to an embodiment of the present invention, and Figure 2 is a diagram illustrating the entire payment process for each transaction performed in the payment system 10 of Figure 1. This is a flow chart.

Referring to Figures 1 and 2, the payment system 10 includes a QR code 110, an input device 120, a wired/wireless router 130, a receipt printer 140, a buyer terminal 200, and a payment brokerage server ( 300) and a payment provider server 400. Here, the input device 120, the wired/wireless router 130, and the receipt printer 140 may be provided at the store. In FIG. 1, the input device 120, the wired/wireless router 130, and the receipt printer 140 are shown as separate devices, but at least two of the input device 120, the wired/wireless router 130, and the receipt printer 140 are a single device. It may also be provided as a device.

The QR code 110 may be pre-produced in the form of a printed material and placed at a retail store, or may be displayed on the screen of a separate display device provided at the retail store. The QR code 110 includes store identification information. The store identification information is information that includes at least one identification item used by at least one of the payment brokerage server 300 and the payment operator server 400 to distinguish the store, for example, a store ID previously assigned to the store, It may include the store name, store address, seller business number, store representative, store contact information, etc.

The input device 120 receives from the user (seller or buyer) a transaction amount representing the price of the product the buyer wishes to purchase. The input device 120 may be implemented as one or a combination of two or more of known input means such as a keypad, touch panel, microphone, camera, etc. In step S210, the input device 120 transmits transaction amount information indicating the transaction amount entered by the seller or buyer to the wired/wireless router 130.

The wired/wireless router 130 is capable of transmitting/receiving individual data to the input device 120, the receipt printer 140, and the payment brokerage server 300 through a wired/wireless network. The wired and wireless router 130 not only provides Wi-Fi service to buyers and other visitors to the store, but also uses the input device 120, the receipt printer 140, and the payment brokerage server 300 during the payment process for products handled by the store. and it functions as a data passage path from one of the payment service provider servers 400 to the other.

The wired/wireless router 130 includes a memory device and an arithmetic device. Memory devices include flash memory type, hard disk type, SSD type (Solid State Disk type), SDD type (Silicon Disk Drive type), and multimedia card micro type. , at least one of random access memory (RAM), static random access memory (SRAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), and programmable read-only memory (PROM) It may include types of storage media. In terms of hardware, computational devices include ASICs (application specific integrated circuits), DSPs (digital signal processors), DSPDs (digital signal processing devices), PLDs (programmable logic devices), FPGAs (field programmable gate arrays), and microprocessors. ), and may be implemented to include at least one of the electrical units for performing other functions. The memory device can store data and computer programs required for computational operations by the computing device.

The wired/wireless router 130 may be connected to the payment brokerage server 300 through a wireless communication channel, and may be connected to the input device 120 and the receipt printer 140 through a wired communication channel. In step S220, when receiving transaction amount information from the input device 120, the wired/wireless router 130 generates payment information by adding store identification information to the received transaction amount information, and then mediates the payment information registration request. Transmitted to the server 300.

In step S222, the payment mediation server 300 registers the payment information requested for registration from the wired/wireless router 130 in the database. In the payment brokerage server 300, the router identification information of the wired/wireless router 130 is mapped to the seller identification information and registered. Accordingly, one of the mapped router identification information and the seller identification information can be used to identify the other. . The payment mediation server 300 may be operated by a payment service provider or a third party. In the payment brokerage server 300, store identification information for each of a plurality of stores and buyer identification information for each of a number of buyers are registered in advance, and the wired and wireless router 130, the buyer terminal 200, and the payment operator server ( 400), the payment progress status for each transaction at each store may be identified by referring to the store identification information and/or buyer identification information received from at least one of the stores.

The purchaser terminal 200 is a terminal owned by the purchaser, and its type is not particularly limited as long as it is a wireless communication device equipped with a communication function and a QR code 110 recognition function, such as a smartphone, tablet PC, or PDA.

In step S230, the buyer terminal 200 recognizes the seller identification information included in the QR code 110 by executing the payment app installed on the buyer terminal 200 and photographing (scanning) the QR code 110 of the seller. . Next, in step S232, the buyer terminal 200 generates a payment information inquiry request including the store identification information recognized from the QR code 110, and then transmits the payment information inquiry request to the payment mediation server 300. .

In step S240, when receiving a payment information inquiry request from the purchaser terminal 200, the payment mediation server 300 inquires (searches) the payment information corresponding to the payment information inquiry request from the database. For example, the payment mediation server 300 identifies payment information that includes the same store identification information as the store identification information included in the inquiry request, among payment information already registered in the database. For reference, if a plurality of payment information having the same store identification information is registered in the database of the payment mediation server 300, the payment mediation server 300 may select one payment information whose registration date is the most recent among these plural payment information. Information can be specified.

In step S242, the payment mediation server 300 transmits a payment information search result including the searched payment information to the buyer terminal 200.

In step S250, the buyer terminal 200 transmits a payment request including payment authentication information input by the buyer in response to the payment information inquiry result received from the payment brokerage server 300 to the payment provider server 400.

In step S260, the payment provider server 400 processes the payment request received from the purchaser terminal 200. Next, in step S270, the payment provider server 400 may transmit a payment completion notification indicating that the payment request has been successfully approved to the payment mediation server 300. The payment completion notification may include the transaction amount, transaction date and time (e.g., payment request date and time, payment approval date and time), transaction approval number, seller identification information, and buyer identification information. For reference, the transaction approval number is used to cancel payment for a payment completion event, and may be any one or a combination of two or more of numbers, text, barcode, and QR code.

In step S272, the payment mediation server 300 delivers a payment completion notification to the wired/wireless router 130.

In step S280, when receiving a payment completion notification, the wired/wireless router 130 generates a receipt output command corresponding to the payment completion notification. The detailed procedure for generating a receipt output command will be described in more detail later with reference to FIGS. 3 to 12.

In step S290, the wired/wireless router 130 transmits a receipt output command to the receipt printer 140.

In step S292, the receipt printer 140 outputs a receipt having a receipt format corresponding to the receipt output command in response to the receipt output command.

Meanwhile, in FIGS. 1 and 2, an MPM-based payment method using a QR code is assumed and explained, but it should be understood that this is only an example. In other words, the payment completion notification received by the wired/wireless router 130 is a notification of normally approved payment information, and the payment method associated therewith is not limited to the MPM-based payment method using a QR code.

FIG. 3 is a flowchart illustrating an exemplary method in which the wired/wireless router 130 generates a receipt output command corresponding to a payment completion notification according to an embodiment of the present invention, and FIGS. 4 to 6 illustrate the method of FIG. 3. This is a drawing referenced for explanation.

Referring to FIG. 3, in step S310, the wired/wireless router 130 receives the payment request previously transmitted from the payment brokerage server 300 to the payment provider server 400 before execution of step S310. Receive a payment completion notification indicating that it has been successfully approved by .

In step S320, the wired/wireless router 130 checks the transaction amount included in the payment completion notification.

In step S330, the wired/wireless router 130 selects one receipt format among a plurality of receipt formats based on the transaction amount. Specifically, each of the multiple receipt forms has a transaction amount area. At this time, the printing style applied to the transaction amount area of one of the plurality of receipt formats is different from the printing style applied to the transaction amount area of each of the remaining receipt forms. In other words, N different printing styles that correspond one-to-one to N receipt formats (N is a natural number of 2 or more) are predetermined. The printing style is one or a combination of two or more of font size, font type, font thickness, font italics, and font underline.

The wired/wireless router 130 may store a first lookup table in which a correspondence relationship between the first to Nth amount ranges and the first to Nth receipt formats is defined. Assuming that k is a natural number of N or less, the kth amount range corresponds to the kth receipt format, and if the transaction amount confirmed in step S320 falls within the kth amount range, the kth receipt format is selected. Additionally, when i and j are natural numbers with the relationship i < j ≤ N, the printing style of the jth receipt format has higher visibility than the printing style of the ith receipt format.

Figure 4 illustrates the first lookup table for N=4. For convenience of explanation, only the font size is shown as an example among the items defining the printing style for each receipt format in the first lookup table. Referring to Figure 4, if the transaction amount falls within the first amount range (less than 10,000 won), the first receipt format to which font size 10pt is applied is selected, and if the transaction amount falls within the second amount range (10,000 to less than 30,000 won) ), the 2nd receipt format with font size 20pt is selected, and if the transaction amount falls within the 3rd amount range (30,000 won to 100,000 won), the 3rd receipt format with font size 30pt is selected. If the transaction amount falls within the fourth amount range (100,000 won or more), the fourth receipt format with font size 40pt is selected. As such, a plurality of printing styles have different levels of visibility, and the wired/wireless router 130 can select a receipt format to which a printing style with relatively high visibility is applied in response to a relatively large transaction amount.

In step S340, the wired/wireless router 130 maps the content of each print target notification item of the payment completion notice to the receipt format selected in step S330 and generates a receipt output command. The receipt output command is transmitted to the receipt printer 140, and the receipt printer 140 prints the receipt according to the receipt output command. Figure 5 illustrates a receipt printed in a second receipt format, and Figure 6 illustrates a receipt output in a third receipt format. Referring to Figures 4 to 6, the transaction amount (62,000 won) is printed in the transaction amount area of the receipt in Figure 5 with the corresponding font size of 20pt, while the transaction amount (62,000 won) is printed in the transaction amount area of the receipt in Figure 6. ) is printed in the corresponding font size of 30pt. Additionally, unlike the receipt in FIG. 5, an italic effect and underline mark are added to the transaction amount area of the receipt in FIG. 6, and the transaction amount (62,000 won) indicated on the receipt in FIG. 6 is the transaction amount indicated on the receipt in FIG. 5. It can be said that visibility is higher than the price (28,000 won).

FIG. 7 is a flowchart illustrating an exemplary method in which the wired/wireless router 130 generates a receipt output command corresponding to a payment completion notification according to another embodiment of the present invention, and FIG. 8 illustrates the method of FIG. 7. This is a drawing referenced in .

Referring to FIG. 7, in step S710, the wired/wireless router 130 receives the payment request previously transmitted from the payment mediation server 300 to the payment provider server 400 before execution of step S310. Receive a payment completion notification indicating that it has been successfully approved by .

In step S720, the wired/wireless router 130 checks the transaction date and time included in the payment completion notification. The transaction date and time is a notification item that indicates the time period in which the transaction was requested or approved. Relatedly, a person's concentration is not constant and changes significantly over time during the day. Therefore, it can be said that the possibility of the seller or buyer entering the transaction amount incorrectly and misrecognizing the transaction amount indicated on the receipt also depends on the transaction date and time. For example, it is clear that the frequency of incorrect input and misrecognition of the transaction amount will be higher late at night or early in the morning when the human body's brain function declines than during the day.

In step S730, the wired/wireless router 130 selects one of a plurality of receipt formats based on the transaction date and time. The relationship between a plurality of receipt formats has already been described above with reference to FIG. 3, and repeated description will be omitted.

The wired/wireless router 130 may store a second lookup table in which the correspondence relationship between the first to Nth transaction time periods and the first to Nth receipt formats is defined. Assuming that k is a natural number of N or less, the kth time zone corresponds to the kth receipt format, and if the transaction date and time confirmed in step S720 falls within the kth time zone, the kth receipt format is selected. Additionally, when i and j are natural numbers with the relationship i < j ≤ N, the printing style of the jth receipt format has higher visibility than the printing style of the ith receipt format.

Figure 8 illustrates a second lookup table for N=3. For convenience of explanation, only the font size is shown as an example among the items defining the printing style for each receipt format in the second lookup table. Referring to Figure 8, if the transaction date and time fall within the first transaction time zone (after 23:00 and before 05:00), the first receipt format to which the font size of 30pt is applied is selected, and if the transaction date and time fall within the second transaction time zone (after 05:00) If it falls within the third transaction time zone (before 19:00), the second receipt format with font size 20pt is selected, and if the transaction date falls within the third transaction time zone (after 19:00 but before 23:00), the third receipt format with font size 25pt is selected. A format is selected. The second look-up table may be predetermined through analysis of a time zone-concentration curve obtained through a previously conducted concentration observation experiment for each time zone. Figure 8 shows that when the day is divided into three time zones, a high level of concentration appears in the time zone after 05:00 and before 19:00, a medium level of concentration appears in the time zone after 19:00 and before 23:00, and the time zone after 23:00 but before 05:00 should be understood as an example based on the assumption that it can be generalized to have a low level of concentration. A plurality of printing styles have different levels of visibility, and the wired/wireless router 130 can select a receipt format to which a printing style with relatively high visibility is applied in response to transaction times found to have relatively low concentration. .

In step S740, the wired/wireless router 130 maps the contents of each print target notification item of the payment completion notice to the receipt format selected in step S730 and generates a receipt output command. The receipt output command is transmitted to the receipt printer 140, and the receipt printer 140 prints the receipt according to the receipt output command.

FIG. 9 is a flowchart illustrating an exemplary method in which the wired/wireless router 130 generates a receipt output command corresponding to a payment completion notification according to another embodiment of the present invention, and FIG. 10 illustrates the method of FIG. 9. This is the drawing referenced.

Referring to FIG. 9, in step S910, the wired/wireless router 130 receives the payment request previously transmitted from the payment brokerage server 300 to the payment provider server 400 before execution of step S310. Receive a payment completion notification indicating that it has been successfully approved by .

In step S920, the wired/wireless router 130 checks the transaction amount and transaction date and time included in the payment completion notification. Since the description of the transaction amount and transaction date and time is common to that described above with reference to FIGS. 3 and 7, repeated descriptions will be omitted.

In step S930, the wired/wireless router 130 selects one of a plurality of receipt formats based on the transaction amount and transaction date and time. The relationship between a plurality of receipt formats has already been described above with reference to FIG. 3, and repeated description will be omitted.

Specifically, in step S932, the wired/wireless router 130 applies the first scoring rule to the transaction amount to determine the first score corresponding to the transaction amount. The first scoring rule uses the transaction amount as an input variable and the first score as an output variable, and may be a linear or non-linear equation that defines a positive correlation between the input variable and the output variable. In step S934, the wired/wireless router 130 applies the second scoring rule to the transaction date and time to determine a second score corresponding to the transaction date and time. The second scoring rule may be a conversion of the time zone-concentration curve obtained through a pre-conducted concentration observation experiment for each time zone into a time zone-score curve. At this time, in the time zone-concentration curve, a relatively low score may be given to a time zone when relatively high concentration is observed. For example, the lowest score (e.g., 0 points) may be given to the time period when the highest concentration is shown, and the highest score (e.g., 100 points) may be given to the time period that the lowest concentration level is shown. In step S936, the wired/wireless router 130 determines the final score by combining the first score and the second score. For example, the final score may be the sum or average of the first score and the second score. In step S938, the wired/wireless router 130 selects one receipt format mapped to the final score among the plurality of receipt formats.

The wired/wireless router 130 may store a third lookup table in which the correspondence relationship between the first to Nth score ranges and the first to Nth receipt formats is defined. Assuming that k is a natural number of N or less, the kth score range corresponds to the kth receipt format, and if the final score determined in step S936 falls within the kth score range, the kth receipt format is selected. Additionally, when i and j are natural numbers with the relationship i < j ≤ N, the printing style of the jth receipt format has higher visibility than the printing style of the ith receipt format.

Figure 10 illustrates a third lookup table in the case of N=4. For convenience of explanation, only the font size is shown as an example among the items defining the printing style for each receipt format in the third lookup table. Referring to Figure 8, if the final score falls within the first score range (less than 20 points), the first receipt format to which the font size of 10pt is applied is selected, and the final score falls within the second score range (more than 20 points but less than 45 points). ), the second receipt format with a font size of 10pt is selected, and if the final score falls within the third score range (45 to 80 points), the third receipt format with a font size of 25pt is selected. If the final score falls within the fourth score range (80 points or more), the fourth receipt format with a font size of 40pt is selected.

In step S940, the wired/wireless router 130 maps the contents of each print target notification item of the payment completion notice to the receipt format selected in step S930 and generates a receipt output command. The receipt output command is transmitted to the receipt printer 140, and the receipt printer 140 prints the receipt according to the receipt output command.

FIG. 11 is a flowchart illustrating an exemplary method in which the wired/wireless router 130 generates a receipt output command corresponding to a payment completion notification according to another embodiment of the present invention, and FIG. 12 illustrates the method of FIG. 11. This is the drawing referenced.

Referring to FIG. 11, in step S1110, the wired/wireless router 130 receives the payment request previously transmitted from the payment mediation server 300 to the payment provider server 400 before execution of step S1110 to the payment provider server 400. Receive a payment completion notification indicating that it has been successfully approved by .

In step S1120, the wired/wireless router 130 checks the buyer identification information included in the payment completion notification.

In step S1130, the wired/wireless router 130 acquires the payment cancellation frequency mapped to buyer identification information from the payment brokerage server 300 or the payment provider server 400. The payment cancellation frequency indicates the number of payment cancellations or payment cancellation rate during the most recent predetermined period (e.g., 30 days) based on the current time. The payment cancellation rate represents the ratio of the number of payment cancellations to the total number of payment approvals. In other words, the payment cancellation frequency indicates how often the purchaser corresponding to the purchaser identification information canceled payment approvals over the recent predetermined period. Specifically, the payment brokerage server 300 maps the payment cancellation frequency for each buyer to the buyer identification information separately from the payment approval history for each buyer, records it in the database, and records the buyer's payment in accordance with a request from the wired/wireless router 130. Cancellation frequency can be provided.

In step S1140, the wired/wireless router 130 selects one receipt format among a plurality of receipt formats based on the payment cancellation frequency.

The wired/wireless router 130 may store a fourth lookup table in which the correspondence relationship between the first to Nth frequency ranges and the first to Nth receipt formats is defined. Assuming that k is a natural number of N or less, the kth frequency range corresponds to the kth receipt format, and if the payment cancellation frequency confirmed in step S1120 falls within the kth frequency range, the kth receipt format is selected. Additionally, when i and j are natural numbers with the relationship i < j ≤ N, the printing style of the jth receipt format has higher visibility than the printing style of the ith receipt format.

Figure 12 illustrates a fourth lookup table in the case of N=4. For convenience of explanation, only the font size is shown as an example among the items defining the printing style for each receipt format in the fourth lookup table. Referring to Figure 4, if the payment cancellation frequency is within the first frequency range (less than 2 cases), the first receipt format to which the font size of 10pt is applied is selected, and the payment cancellation frequency is within the second frequency range (more than 2 cases, 4 If the payment cancellation frequency falls within the third frequency range (4 or more but less than 10 cases), the second receipt format with font size 15pt is selected, and the third receipt format with font size 25pt is selected. If the format is selected and the payment cancellation frequency falls within the fourth frequency range (10 or more), the fourth receipt format with font size 40pt is selected. In this way, the wired/wireless router 130 can select a receipt format that applies a printing style with relatively high visibility in response to a relatively large payment cancellation frequency.

In step S1150, the wired/wireless router 130 maps the contents of each print target notification item of the payment completion notice to the receipt format selected in step S1130 and generates a receipt output command. The receipt output command is transmitted to the receipt printer 140, and the receipt printer 140 prints the receipt according to the receipt output command.

The present invention is not limited to the specific embodiments and application examples described above, and various modifications can be made by those skilled in the art without departing from the gist of the invention as claimed in the claims. Of course, these modified implementations should not be understood separately from the technical idea or outlook of the present invention.

In particular, configurations that implement the technical features of the present invention included in the block diagram and flow chart shown in the drawings attached to this specification represent logical boundaries between the configurations. However, according to an embodiment of the software or hardware, the depicted configurations and their functions are executed in the form of stand-alone software modules, monolithic software structures, codes, services, and combinations thereof, and can execute stored program code, instructions, etc. Since the functions can be implemented by being stored in a medium executable on a computer equipped with a processor, all of these embodiments should also be regarded as falling within the scope of the present invention.

Accordingly, although the attached drawings and their descriptions illustrate the technical features of the present invention, they should not be simply inferred unless a specific arrangement of software for implementing these technical features is clearly stated. In other words, various embodiments described above may exist, and since such embodiments may be partially modified while retaining the same technical features as the present invention, these should also be regarded as falling within the scope of the present invention.

In addition, in the case of a flowchart, operations are depicted in the drawing in a specific order, but this is shown to obtain the most desirable results, and such operations must be executed in the specific order or sequential order shown, or all illustrated operations must be executed. It should not be understood as something that must be done. In certain cases, multitasking and parallel processing may be advantageous. Additionally, the separation of the various system components of the embodiments described above should not be construed as requiring such separation in all embodiments, and the program components and systems described are generally integrated together into a single software product or integrated into multiple software products. It should be understood that it can be packaged.

10: Payment system
110: QR code
120: input device
130: Wired/wireless router
140: Receipt printer
200: Buyer terminal
300: Payment brokerage server
400: Payment operator server

Claims (10)

In a method for a wired or wireless router within a retail store to control a receipt printer within the retail store,
Receiving, from the payment brokerage server, a payment completion notification indicating that the payment request has been successfully approved by the payment provider server;
Generating a receipt output command corresponding to the payment completion notification; and
transmitting the receipt output command to the receipt printer;
Receipt printer control method including.
According to paragraph 1,
The step of generating the receipt output command is,
Confirming the transaction amount included in the payment completion notification;
selecting one receipt format among a plurality of receipt formats based on the transaction amount; and
generating the receipt output command by mapping the content of each notification item of the payment completion notification to the selected receipt format;
Receipt printer control method including.
According to paragraph 1,
The step of generating the receipt output command is,
Confirming the transaction date and time included in the payment completion notification;
selecting one receipt format among a plurality of receipt formats based on the transaction date and time; and
generating the receipt output command by mapping the content of each notification item of the payment completion notification to the selected receipt format;
Receipt printer control method including.
According to paragraph 1,
The step of generating the receipt output command is,
Confirming the transaction amount and transaction date and time included in the payment completion notification;
selecting one receipt format among a plurality of receipt formats based on the transaction amount and the transaction date and time; and
generating the receipt output command by mapping the content of each notification item of the payment completion notification to the selected receipt format;
Receipt printer control method including.
According to paragraph 4,
The step of selecting one of the plurality of receipt formats is:
applying a first scoring rule to the transaction amount to determine a first score corresponding to the transaction amount;
applying a second scoring rule to the transaction date and time to determine a second score corresponding to the transaction date and time;
Combining the first score and the second score to determine a final score; and
selecting a receipt format mapped to the final score among the plurality of receipt formats;
Receipt printer control method including.
According to paragraph 1,
The step of generating the receipt output command is,
Confirming buyer identification information included in the payment completion notification;
Obtaining a payment cancellation frequency mapped to the buyer identification information;
selecting one receipt format among a plurality of receipt formats based on the payment cancellation frequency; and
generating the receipt output command by mapping the content of each notification item of the payment completion notification to the selected receipt format;
Receipt printer control method including.
According to clause 6,
The payment cancellation frequency is,
A receipt printer control method indicating the number of payment cancellations or payment cancellation rate during a recent predetermined period.
According to any one of claims 2 to 7,
The above multiple receipt formats are:
The printing style applied to each transaction amount area is different,
The printing style is one or a combination of two or more of font size, font type, font thickness, font italics, and font underline.
According to paragraph 1,
The wired and wireless router,
Connected to the payment brokerage server through a wireless communication channel,
A receipt printer control method connected to the receipt printer through a wired communication channel.
In a computer program that executes a method by which a wired or wireless router within a retail store controls a receipt printer within the retail store,
The receipt printer control method is:
Receiving, from the payment brokerage server, a payment completion notification indicating that the payment request has been successfully approved by the payment provider server;
Generating a receipt output command corresponding to the payment completion notification; and
transmitting the receipt output command to the receipt printer;
A computer program, including.