JP2023073292A - Information processing device, information processing system, information processing method, and information processing program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an information processing device reducing the frequency of automatic charge when the total amount of commodities is larger than the balance of electronic money, a server, an information processing system, a method, and a program.

SOLUTION: In a cart register device, recording medium identification information of a recording medium, cart register identification information, and commodity identification information of commodities are acquired and transmitted to a server. The server stores the received recording medium identification information and cart register identification information in association with each other. The server further stores the recording medium identification information and the balance in association with each other. When the total amount of the commodities whose commodity identification information is acquired is larger than a first balance corresponding to the recording medium identification information, the charge amount is determined in accordance with a difference between the total amount and the first balance. The cart register device causes a display unit to display the determined charge amount.

SELECTED DRAWING: Figure 1

COPYRIGHT: (C)2023,JPO&INPIT

Description

The present invention relates to an information processing device, an information processing system, an information processing method, and an information processing program.

Cited Document 1 describes a system that checks whether or not payment is possible before the product purchase price is processed by a non-contact IC card function unit built into a customer's mobile phone terminal. In Cited Document 1, there is a pre-inspection device that communicates with a mobile terminal and acquires payment-related information set in the contactless IC card function unit, and a total amount that acquires the product price from the IC tag attached to the product and calculates the total amount. A computing device and a display device are described as being installed in a shopping cart. In addition, it is described that the prior inspection device in Cited Document 1 compares the total price of the product with payment-related information, and automatically charges the product with electronic money when payment cannot be made.

JP 2006-023951 A

However, although Cited Document 1 describes a configuration in which electronic money is automatically charged when payment cannot be made, the charge amount that is automatically charged (auto-charged) is a fixed amount. The charge amount may be smaller than the insufficient amount. In this case, it is not possible to charge properly enough to settle the purchase.

Accordingly, the present invention provides an information processing device, an information processing system, a method, and a program capable of appropriately performing automatic charging at a retail store.

An information processing apparatus according to the present invention includes a recording medium information acquisition unit that acquires recording medium identification information from a recording medium, a product identification information acquisition unit that acquires product identification information of a product, and a product corresponding to the acquired recording medium identification information. a display control unit for displaying a first balance and the total price of the product for which the product identification information is acquired on a display unit; a receiving unit that receives the charge amount determined according to the difference between the total amount and the first balance, wherein the display control unit displays the received charge amount on the display unit.

According to the information processing apparatus and the like of the present invention, it is possible to automatically charge the amount of money that can be used for payment of the purchased product.

1 is a functional block diagram showing the configuration of a cart register device 100 according to a first embodiment; FIG. It is a functional block diagram which shows the structure of the information processing system 1 which concerns on 2nd Embodiment. FIG. 10 shows a cart register device usage table 1000. FIG. FIG. 10 shows a balance table 1001; FIG. FIG. 10 is a diagram showing a charge amount table 1003; FIG. 2 is a diagram showing a hardware configuration example of the information processing system 1; FIG. 4 is a sequence diagram showing the flow of operations of balance acquisition processing in the information processing system 1. FIG. It is an example of a screen displayed on the display unit when the customer causes the cart register device 200 to read the recording medium. 4 is a sequence diagram showing the flow of operations of product registration processing in the information processing system 1; FIG. This is an example of a screen displayed on the display unit when a customer registers oranges, apples, and chocolate as products. 4 is a sequence diagram showing the operation flow of settlement processing in the information processing system 1. FIG. FIG. 10 is a diagram showing a balance table 1002; FIG. It is an example of a settlement completion screen when the total amount is greater than the first balance. It is an example of a settlement completion screen when the total amount is equal to or less than the first balance. It is a screen example of a confirmation screen.

[First Embodiment]
FIG. 1 is a functional block diagram showing the configuration of a cart register device 100 according to the first embodiment of the invention. The cart register device 100 includes a recording medium information acquisition section 101 , a product identification information acquisition section 102 , a display control section 103 and a reception section 104 .

A recording medium information acquisition unit 101 acquires recording medium identification information from a recording medium. The recording medium identification information is information that can uniquely identify the recording medium. The product identification information acquisition unit 102 acquires product identification information of products. The display control unit 103 causes the display unit to display the first balance corresponding to the acquired recording medium identification information and the total price of the product for which the product identification information is acquired. When the total price of the product for which the product identification information is acquired is greater than the first balance, the receiving unit 104 receives the charge amount determined according to the difference between the total price and the first balance. The display control unit 103 causes the display unit to display the received charge amount.

As described above, according to the information processing apparatus and the like of the present invention, it is possible to automatically charge the amount of money that can be used for settlement of the purchased product.

[Second embodiment]
A second embodiment of the present invention will be described below. The information processing system according to the present embodiment is a system used for accounting processing at retail stores (convenience stores, supermarkets, drug stores, etc.). Accounting processing is a process of registering products that a customer plans to purchase and performing settlement for the registered products. Further, the information processing system according to the present embodiment is used in retail stores where prepaid electronic money and automatic charging of electronic money are available. FIG. 2 is a functional block diagram showing the configuration of the information processing system 1 according to the second embodiment. The information processing system 1 shown in FIG. 2 includes a cart register device 200 and a server 300 that are communicably connected to each other.

The cart register device 200 comprises at least a tablet terminal, a bar code scanner, and a shopping cart for storing products to be purchased. When a customer enters the store, he or she first receives the cart register device 200 and starts shopping. Specifically, the customer reads the bar code attached to the product with a scanner. On the other hand, at the time of product registration, the cart register device 200 receives product identification information read from the barcode from the scanner and stores product information corresponding to the received product identification information, thereby performing product registration. After registering the product, the customer puts the product in the shopping cart. By using the cart register device 200, the customer can shop while registering merchandise himself/herself. Product information will be described later. Although the scanner is included in the cartridge device 200 in this embodiment, it may be provided separately from the cartridge device 200 as an external device. Note that the tablet terminal included in the cart register device 200 may also be referred to as an information processing device below. Further, in the present embodiment, a tablet terminal will be described, but a customer's portable terminal can be substituted for the tablet terminal. In this case, the target application is installed in the customer's terminal.

Further, when the cart register device 200 detects the settlement start instruction, it starts settlement processing for the registered product. The settlement start instruction will be described later. The cart register device 200 includes a storage unit 201, a recording medium information acquiring unit 202, a reading unit 203, a cart register transmitting unit 204, a cart register receiving unit 205, a display control unit 206, a product identification information acquiring unit 207, a calculating unit 208, and A determination unit 209 is included.

The storage unit 201 stores cart register identification information, product information of registered products, the total amount of the registered products (hereinafter referred to as the total amount), the balance, and the difference between the balance and the total amount. . The cartridge identification information is information that can uniquely identify the cartridge device 200 . The product information includes at least product price information. The product information may include information such as the product name, product classification, and product identification information in addition to the price information of the product.

A recording medium information acquisition unit 202 acquires recording medium identification information from a recording medium. For example, the recording medium information acquisition unit 202 is a reader using near field communication such as NFC (Near Field Communication) or RFID (radio frequency identifier). The recording medium records recording medium identification information, and is, for example, a portable terminal or an IC card. The recording medium may record the balance. The recording medium identification information is information that can uniquely identify the recording medium, and is used to inquire of the server 300 about the balance. Specifically, when the customer uses the cart register device 200 , the customer holds the recording medium owned by the customer over the recording medium information acquisition unit 202 . Then, the recording medium information acquiring unit 202 acquires the recording medium identification information from the recording medium and notifies the reading unit 203 of the acquired recording medium identification information.

The product identification information acquisition unit 207 acquires product identification information of products. Specifically, when a customer reads a bar code attached to a product with a scanner, the product identification information acquisition unit 207 acquires product identification information from the scanner. An RFID tag may be attached to the product. When the product is tagged with an RFID tag, the RFID reader provided in the cart register device 200 reads the RFID tag, and the product identification information acquisition unit 207 acquires product identification information from the RFID reader. The product identification information acquisition unit 207 notifies the read unit 203 of the acquired product identification information.

The reading unit 203 reads the cart register identification information and product information stored in the storage unit 201 . Specifically, when the customer causes the recording medium information acquisition unit 202 to read the recording medium, the reading unit 203 acquires the recording medium identification information from the recording medium information acquisition unit 202 and the cart register identification information from the storage unit 201. Read out. The reading unit 203 notifies the cartridge transmitting unit 204 of the acquired recording medium identification information and the read cartridge identification information.

When the customer operates the scanner to read the barcode attached to the product, the reading unit 203 acquires product identification information from the product identification information acquisition unit 207 and reads the cart register identification information from the storage unit 201 . put out. The reading unit 203 notifies the cart-register transmitting unit 204 of the acquired product identification information and the read-out cart register identification information.

Further, when the customer pushes the cart register device 200 and passes through the exit gate, the reading unit 203 acquires the determination result from the determining unit 209 and reads out the cart register identification information and product information from the storage unit 201 . Then, the reading unit 203 notifies the cartregistry transmitting unit 204 of the determination result, the cartridge identification information, and the product information.

A determination device is provided at the exit gate, and the determination device capable of communicating with the cartridge device 200 determines that the cartridge device 200 has passed through the exit gate. Specifically, the determination device determines whether or not communication with the cartridge device 200 has been established, and determines that the cartridge device 200 has passed through the exit gate when communication with the cartridge device 200 has been established. do. When the determination device determines that the cartridge device 200 has passed through the exit gate, the determination device transmits a checkout start instruction to the cartridge device 200 . The settlement start instruction is information for instructing the start of settlement. The determination device may be provided in a place that customers pass through when leaving the store, for example, it may be provided on the floor of the store exit or in the parking lot. Note that the determination device may be any device that can detect the exit of the customer, and may be, for example, a human sensor. Further, the determination device may detect that the cart register device 200 is present in a predetermined area that the customer visits when leaving the store.

Cartridge transmission unit 204 transmits to server 300 the determination result, the recording medium identification information, the product identification information, the product information, and the cartridge identification information notified from reading unit 203 .

The cart register receiving unit 205 receives from the server 300 the first balance, which is the balance corresponding to the recording medium identification information, the product information, the second balance, which is the balance updated by the server 300, and the charge amount. Further, the cart register receiving unit 205 functions as a detection unit that detects the settlement start instruction by receiving the settlement start instruction from the exit gate. The first balance is the balance when the customer causes the recording medium information acquisition unit 202 to read the recording medium. The second balance is the balance after settlement.

Specifically, when the customer causes the recording medium information acquiring unit 202 to read the recording medium, the cart register receiving unit 205 receives the first balance corresponding to the recording medium identification information from the server 300 . The cart register receiving unit 205 stores the received first balance in the storage unit 201 . The cart register receiving unit 205 notifies the display control unit 206 of the received first balance.

When the customer operates the scanner to read the bar code attached to the product, the cart register receiving unit 205 receives product information from the server 300 . The cart register reception unit 205 notifies the calculation unit 208 of the received product information. The cart register receiving unit 205 stores the received product information in the storage unit 201 .

When the customer pushes the cart register device 200 and passes through the exit gate, the cart register receiving unit 205 receives a checkout start instruction from the exit gate. The cart register receiving unit 205 notifies the determination unit 209 and the display control unit 206 of the received instruction to start settlement.

Further, when the server 300 completes the settlement, the cart register receiving unit 205 receives the second balance and the charge amount or the second balance from the server 300 . The cart register receiving unit 205 overwrites the first balance stored in the storage unit 201 with the second balance. The cart register receiving unit 205 notifies the display control unit 206 of the received second balance and charge amount or second balance.

The calculation unit 208 calculates the total amount and the difference between the total amount and the balance displayed on the display unit (not shown). The display unit is, for example, a display provided in a tablet terminal. Specifically, when the customer operates the scanner to read the barcode attached to the product, the calculation unit 208 acquires product information from the cart register reception unit 205 . The calculation unit 208 adds the product price included in the acquired product information and the total price stored in the storage unit 201 to calculate the total price to be newly displayed on the display unit. Further, the calculation unit 208 calculates the difference by subtracting the calculated total amount from the balance stored in the storage unit 201 . Then, the calculation unit 208 stores the calculated total amount and difference in the storage unit 201 and notifies the display control unit 206 of the calculated total amount and difference. The calculation unit 208 overwrites the calculated total amount and difference with the total amount and difference stored in the storage unit 201 .

The determination unit 209 determines whether the total amount is greater than the balance. Specifically, when the customer pushes the cart register device 200 and passes through the exit gate, the determining unit 209 acquires a settlement start instruction from the cart register receiving unit 205 . The determination unit 209 compares the total amount and the balance stored in the storage unit 201 and determines whether the total amount is greater than the first balance. The determination unit 209 notifies the reading unit 203 of the determination result.

The display control unit 206 generates a screen based on the information received from the server 300 and the information calculated by the calculation unit 208, and causes the display unit to display the generated screen. Specifically, when the customer causes the recording medium information acquisition unit 202 to read the recording medium, the display control unit 206 receives notification of the first balance from the cart register reception unit 205, and receives the first balance stored in the storage unit. A screen including the balance is generated and displayed on the display unit.

When the customer operates the scanner to read the barcode attached to the product, the display control unit 206 is notified of the total amount and the difference from the calculation unit 208, and calculates the balance and the total amount stored in the storage unit 201. , the difference between the total amount and the balance, and product information are generated and displayed on the display unit.

When the customer pushes the cart register device 200 and passes through the exit gate, the display control unit 206 acquires a settlement start instruction from the cart register receiving unit 205 . After that, when the server 300 completes the settlement, the display control unit 206 acquires the second balance and the charge amount or the second balance from the cart register receiving unit 205 . When the display control unit 206 acquires the settlement start instruction and acquires the second balance and the charge amount or the second balance, the display control unit 206 generates a settlement completion screen indicating that the settlement processing is completed, and displays the generated settlement completion screen. displayed in the department. Then, after a predetermined time has passed since the settlement completion screen was displayed on the display unit, the display control unit 206 causes the display unit to display the initial screen before the recording medium is read, and displays the product information stored in the storage unit 201. , the total amount, the balance, and the difference between the balance and the total amount. At least one of the second balance and the charge amount is included in the settlement completion screen.

The server 300 manages the electronic money balance. The server 300 includes a server reception unit 301 , a storage unit 302 , a balance acquisition unit 303 , a server transmission unit 304 , a product information acquisition unit 305 , a balance update unit 306 , an extraction unit 307 and a determination unit 308 .

The storage unit 302 stores a cart register device usage table 1000 and a balance table 1001 . FIG. 3 is a diagram showing a cart register device usage table 1000. As shown in FIG. The storage unit 302 associates the recording medium identification information and the cartridge identification information received from the cart register device 200 and stores them in the cart register device usage state table 1000 . FIG. 4 is a diagram showing the balance table 1001. As shown in FIG. The balance table 1001 associates and stores the recording medium identification information and the balance.

The server reception unit 301 receives the cart register identification information, the recording medium identification information, the product identification information, the determination result, and the product information from the cart register device 200 . Specifically, when the customer causes the recording medium information acquiring section 202 to read the recording medium, the server receiving section 301 receives the recording medium identification information and the cart register identification information from the cart register device 200 . Then, the server reception unit 301 associates the received recording medium identification information with the cart register identification information, stores them in the cart register device use status table 1000, and notifies the balance acquisition unit 303 of them.

When the customer operates the scanner to read the bar code attached to the product, the server reception unit 301 receives the product identification information and the cart register identification information from the cart register device 200 . Then, the server reception unit 301 notifies the product information acquisition unit 305 of the received product identification information and cart register identification information.

When the customer pushes the cart register device 200 and passes through the exit gate, the server receiving unit 301 receives the judgment result, the cart register identification information, and the product information from the cart register device 200 . Then, the server reception unit 301 notifies the extraction unit 307 of the received determination result, cart register identification information, and product information.

When the customer operates the scanner to read the barcode attached to the product, the product information acquisition unit 305 acquires product identification information and cart register identification information from the server reception unit 301 . Based on the acquired product identification information, the product information acquisition unit 305 acquires product information by referring to a product information table (not shown) that stores product information in association with the product identification information. The product information acquisition unit 305 notifies the server transmission unit 304 of the acquired cart register identification information and product information.

The extraction unit 307 extracts recording medium identification information. Specifically, when the customer pushes the cart register device 200 and passes through the exit gate, the extracting unit 307 acquires the determination result, the cart register identification information, and the product information from the server receiving unit 301 . The extraction unit 307 refers to the cart register device use status table 1000 and extracts the recording medium identification information corresponding to the acquired cart register identification information. The extraction unit 307 notifies the balance acquisition unit 303 of the extracted recording medium identification information, the obtained determination result, the cart register identification information, and the product information.

The balance acquisition unit 303 acquires the balance based on the recording medium identification information. Specifically, when the customer causes the recording medium information acquisition unit 202 to read the recording medium, the balance acquisition unit 303 acquires the recording medium identification information and the cart register identification information from the server reception unit 301 . The balance acquisition unit 303 refers to the balance table 1001 and acquires the first balance stored in association with the acquired recording medium identification information. The balance acquisition unit 303 then notifies the server transmission unit 304 of the acquired first balance and cart register identification information.

When the customer pushes the cart register device 200 and passes through the exit gate, the balance acquisition unit 303 acquires the determination result, the recording medium identification information, the cart register identification information, and the product information from the extraction unit 307 . The balance acquisition unit 303 refers to the balance table 1001 and acquires the first balance corresponding to the acquired recording medium identification information. If the obtained determination result indicates that the total amount is greater than the first balance, the balance obtaining unit 303 notifies the determining unit 308 of the obtained first balance, cart register identification information, and product information. On the other hand, if the acquired determination result indicates that the total amount is less than or equal to the first balance, the balance acquisition unit 303 notifies the balance update unit 306 of the acquired first balance, cart register identification information, and product information.

A determination unit 308 determines the charge amount according to the difference between the total amount and the balance. For example, the determination unit 308 determines an amount determined according to the difference as the charge amount. In this case, the customer may also use his/her own customer terminal before shopping to set the charging amount for each recording medium according to the difference. In addition, when the amount determined according to the difference amount is determined as the charge amount, the storage unit 302 further stores the charge amount table 1003 . FIG. 5 is a diagram showing the charge amount table 1003. As shown in FIG. The charge amount table 1003 stores the charge amount corresponding to the difference between the total amount set by the customer and the balance for each recording medium identification information.

Alternatively, the determination unit 308 may determine a value obtained by rounding up the value indicated by the difference amount to the highest place as the charge amount. For example, if the difference is 11 yen, 100 yen is determined as the charge amount, and if the difference is 2,000 yen, 10,000 yen is determined as the charge amount. Note that when determining the charge amount by rounding up the value indicated by the difference, if the difference is less than 100 yen, the determining unit 308 may determine 1000 yen as the charge amount.

Furthermore, the determination unit 308 may determine the charge amount to be the same amount as the difference amount. For example, if the difference is 100 yen, the determination unit 208 determines 100 yen as the charge amount.

If the determination result received from the cart register device 200 indicates that the total amount is greater than the first balance, the determining unit 308 obtains the first balance, the cart register identification information, and the product information from the balance obtaining unit 303. . The determination unit 308 calculates the total amount based on the acquired product information. Then, the determination unit 308 determines the charge amount according to the difference between the obtained first balance and the calculated total amount. The determination unit 308 notifies the balance update unit 306 of the charge amount, the first balance, the cart register identification information, and the total amount.

A balance update unit 306 updates the balance of the balance table 1001 . Specifically, when the determination result received from the cart register device 200 indicates that the total amount is equal to or less than the first balance, the balance update unit 306 receives the product information, the first balance, and the cart balance from the balance acquisition unit 303 . Get cash register identification information. The balance update unit calculates the total amount based on the acquired product information. Then, the balance update unit 306 stores the amount obtained by subtracting the calculated total amount from the acquired first balance in the balance table 1001 as a new second balance.

On the other hand, if the determination result received from the cart register device 200 indicates that the total amount is greater than the first balance, the balance updating unit 306 receives from the determining unit 308 the charge amount, the first balance, the cart register identification information, and Get the total amount. Then, the balance update unit 306 stores the amount obtained by subtracting the total amount from the amount obtained by adding the charge amount to the first balance in the balance table 1001 as a new second balance.

In this way, the balance updating unit 306 stores the second balance in the balance table 1001, and the settlement of the product registered in the cart register device 200 is completed. The balance update unit 306 notifies the server transmission unit 304 of the charge amount, the second balance, and the acquired cart register identification information, and deletes the storage corresponding to the acquired cart register identification information in the cart register device usage status table 1000. . If the determination result received from the cart register device 200 indicates that the total amount is equal to or less than the first balance, the balance update section 306 does not notify the server transmission section 304 of the charge amount.

Server transmission unit 304 transmits the first balance, product information, second balance, and charge amount to cart register device 200 . Specifically, when the customer causes the recording medium information acquisition unit 202 to read the recording medium, the server transmission unit 304 acquires the cart register identification information and the first balance from the balance acquisition unit 303 . The server transmission unit 304 transmits the first balance to the cart register device 200 having the acquired cart register identification information.

When the customer operates the scanner to read the barcode attached to the product, the server transmission unit 304 acquires the cart register identification information and the product information from the product information acquisition unit 305 . The server transmission unit 304 transmits the product information to the cart register device 200 having the acquired cart register identification information.

When the customer presses the cart register device 200 and passes through the exit gate, the server transmission unit 304 acquires the cart register identification information, the second balance, and the charge amount from the balance update unit 306 . Server transmission unit 304 transmits the second balance and the charge amount to cart register device 200 having the acquired cart register identification information. If the determination result received from the cart register device 200 indicates that the total amount is less than or equal to the first balance, the server transmission unit 304 does not transmit the charge amount to the cart register device 200 .

FIG. 6 is a diagram showing a hardware configuration example of the information processing system 1. As shown in FIG. The information processing system shown in the figure includes a cart register device 200 and a server 300 . The cart register device 200 includes a bus 209 , a CPU (Central Processing Unit) 210 , a memory 211 , a storage device 212 , an input/output interface 213 and a communication interface 214 .

A bus 209 is a data transmission path through which the CPU 210, memory 211, storage device 212, and input/output interface 213 mutually transmit and receive data.

The memory 211 is a main memory implemented by, for example, a RAM (Random Access Memory). The storage device 212 is an auxiliary storage device implemented by a hard disk, SSD (Solid State Drive), ROM (Read Only Memory), memory card, or the like. Note that the storage device 212 may be implemented by hardware similar to hardware used to implement a main storage device such as a RAM.

The storage device 212 stores program modules that implement each function of the cart register device 200 . The CPU 210 implements the functions of the functional block diagram shown in FIG. 2 by reading each of these program modules into the memory 211 and executing them.

The input/output interface 213 is an interface for connecting the cart register device 200 to an input device and an output device. The input device is, for example, an RFID reader, scanner, or touch panel display, and the output device is, for example, a display.

A communication interface is an interface for connecting to a network such as the Internet or an intranet.

Server 300 includes bus 309 , CPU 310 , memory 311 , storage device 312 and communication interface 313 . The hardware configuration of the server 300 is substantially the same as the bus 209, CPU 210, memory 211, storage device 212, and communication interface 214 of the cart register device 200, so description thereof will be omitted.

[Operation of information processing system]
The flow of operations of the information processing system 1 will be described separately for balance acquisition processing, product registration processing, and settlement processing. In the balance acquisition process, the customer causes the recording medium information acquisition unit 202 to read the recording medium, the cart register device 200 acquires the recording medium identification information, and the electronic money balance is displayed. In the product registration process, the customer operates the scanner to read the bar code attached to the product, the cart register device 200 acquires the product identification information, the product information, the total price of the product, the balance and the total price of the product. This is processing for displaying the difference between the two on the display unit. The settlement process is a process until the customer moves the cart register device 200 so that the cart register device 200 passes through the exit gate and a settlement completion screen is displayed on the display unit.

FIG. 7 is a sequence diagram showing the operation flow of the balance acquisition process in the information processing system 1. As shown in FIG. FIG. 9 is a sequence diagram showing the operation flow of product registration processing in the information processing system 1. As shown in FIG. FIG. 11 is a sequence diagram showing the operation flow of the settlement processing in the information processing system 1. As shown in FIG.

With reference to FIGS. 7 and 8, and the table 1000 of devices using the cart register shown in FIG. 3 and the balance table 1001 shown in FIG. . FIG. 8 is an example of a screen displayed on the display unit when the customer causes the cart register device 200 to read the recording medium. It is assumed that the identification information of the recording medium owned by the customer is "12-1348a" and the cartridge identification information of the cart register device 200 used by the customer is "0001".

In FIG. 7, the customer uses the recording medium in a reader for short-range wireless communication, so that the cartridge device 200 acquires the recording medium identification information "12-1348a" from the recording medium (step S400). The cartridge identification information "0001" stored in the storage unit 201 is read (step S401). The cartridge device 200 then transmits the recording medium identification information and the cartridge identification information to the server 300 (step S402).

The server 300 associates the received recording medium identification information "12-1348a" with the cartridge identification information "0001" and stores them in the cartridge device use status table 1000 (step S403). The server 300 refers to the balance table 1001 and acquires the first balance "500 yen" stored in association with the recording medium identification information "12-1348a" (step S404). Then, the server 300 transmits that the balance is "500 yen" to the cart register device 200 having "0001" as the cart register identification information (step S405).

The cart register device 200 generates and displays the screen shown in FIG. 8 including the first balance based on the first balance of "500 yen" (step S406), and ends the process. Specifically, in step S406, the cart register device 200 displays the first balance "500 yen" in the balance display area 20 of the display screen shown in FIG. "Yen" is displayed, "500 yen", which is the difference obtained by subtracting the total amount from the first balance, is displayed in the difference display area 22, and the product information of the registered product is displayed in the registered product display area 23. No registered product is displayed in the registered product display area 23 of FIG. 8 because no product is registered in the cart register device 200 . In addition, since the product information includes the product name and price in this embodiment, the registered product display area 23 is provided with an area for displaying the product name and price.

Note that the recording medium may store the balance. In this case, the cart register device 200 acquires the recording medium identification information and the first balance from the recording medium in step S400. Also, the server 300 does not perform the processing of steps S404 and S405.

The flow of the product registration process in the information processing system 1 will be described with reference to FIGS. 9 and 10. FIG. FIG. 10 is an example of a screen displayed on the display unit when a customer registers oranges, apples, and chocolate as products. FIG. 9 illustrates an example in which a customer registers oranges and apples as products after the balance acquisition process described in FIG. 7, and then registers chocolate as products.

In FIG. 9, when the customer reads the barcode attached to the chocolate with a scanner, the cart register device 200 receives the product identification information of the chocolate from the scanner (step S407). Then, the cart register device 200 reads out the cart register identification information "0001" stored in the storage unit 201 (step S408), and transmits the chocolate product identification information and the cart register identification information to the server 300 (step S409). ).

The server 300 refers to the product information table and acquires "product name: chocolate, price: 300 yen" as product information corresponding to the product identification information of chocolate (step S410). Then, the server 300 transmits the acquired product information "product name: chocolate, price: 300 yen" to the cart register device 200 having "0001" as the cart register identification information (step S411).

The cart register device 200 adds "300 yen", which is the price included in the product information, to "360 yen", which is the total price of the mandarin oranges and apples already registered and displayed on the display unit, to obtain a new value. "660 yen", which is the total amount to be displayed, is calculated (step S412). Further, the cart register device 200 subtracts the calculated total amount of "660 yen" from the balance of "500 yen" displayed on the display unit, thereby obtaining the difference between the total amount and the balance of "-160 yen." circle” is calculated (step S413).

Based on the calculated total amount of "660 yen" and the difference of "-160 yen", the cart register device 200 generates and displays the screen shown in FIG. 10 including the total amount and the difference (step S414), End the process. Specifically, in step S414, the cart register device 200 displays the balance "500 yen" in the balance display area 20 of the display screen shown in FIG. is displayed, "-160 yen", which is the difference obtained by subtracting the total amount from the balance, is displayed in the difference display area 22, and the product information of the mandarin orange, apple, and chocolate registered as products is displayed in the registered product display area 23.

Note that the cart register device 200 may store a product information table in the storage unit 201 . At this time, following step S407, the cart register device 200 refers to the product information table stored in the storage unit 201, and acquires product information corresponding to the acquired product identification information. Further, the information processing system 1 does not perform the processing of steps S408 to S411.

11, 12, 13, and 14, and the above-described cart register device usage status table 1000 shown in FIG. 3, balance table 1001 shown in FIG. 4, and charge amount table 1003 shown in FIG. The flow of the operation of the settlement processing in the information processing system 1 will be described while referring to FIG.

FIG. 12 shows the balance table 1002. As shown in FIG. The balance table 1002 shows the second balance when the cart register device 200 passes through the exit gate and the product registered in the cart register device 200 is settled. FIG. 13 is an example of a settlement completion screen when the total amount is greater than the first balance. FIG. 14 is an example of a settlement completion screen when the total amount is less than or equal to the first balance. FIG. 11 will be described as settlement processing which is performed subsequent to the merchandise registration processing described in FIG. 9 and is performed when the total amount is greater than the first balance. Further, the determination unit 308 determines, as the charge amount, the value obtained by rounding up the value indicated by the difference amount to the largest digit.

When the customer presses the cart register device 200 to pass through the exit gate and receives a settlement start instruction from the determination device (step S415), the cart register device 200 displays the total amount stored in the storage unit 201 as "660 yen". The value of "500 yen", which is the first balance, is compared (step S416). In step S416, since the total amount is greater than the first balance, a determination result is obtained that the total amount is greater than the first balance. The cart register device 200 reads the cart register identification information "0001" and the product information of oranges, apples, and chocolates from the storage unit 201 (step S417). The cart register device 200 then transmits the determination result, the cart register identification information "0001", and the product information to the server 300 (step S418).

Server 300 refers to cart register device use status table 1000 and extracts recording medium identification information "12-1348a" stored in correspondence with received cart register identification information "0001" (step S419). ). The server 300 refers to the balance table 1001 and acquires the second balance "500 yen" stored in association with the extracted recording medium identification information "12-1348a" (step S420).

If the received determination result indicates that the total amount is greater than the first balance, the server 300 calculates the total amount of "660 yen" based on the received product information, and returns the total amount of "660 yen". And the charge amount is determined based on "160 yen" which is the difference between "500 yen" which is the first balance (step S421). In step S421, since the largest digit of "160", which is the value indicated by the difference, is in the hundreds place, server 300 rounds up the value indicated by the difference to the 100th place, which is "1,000 yen". Determined as the charge amount.

The server 300 adds the charge amount of "1,000 yen" to the first balance of "500 yen" and subtracts the total amount of "660 yen" from the amount of "840 yen" as the first balance. 2 The balance is stored in the balance table 1001 and the balance is updated (step S422). By the processing in step S422, as shown in balance table 1002, "840 yen" is stored as the second balance associated with "12-1348a", which is the recording medium identification information, so that the product is registered in cart register device 200. The payment for the purchased product is completed.

Server 300 transmits the charge amount of "1,000 yen" and the second balance of "840 yen" to cart register device 200 having "0001" as the received cart register identification information (step S423). Then, server 300 deletes the memory corresponding to the cart register identification information "0001" from cart register device usage status table 1000 (step S424).

When the cart register device 200 receives the settlement start instruction from the determination device and further receives the charge amount of "1,000 yen" and the second balance of "840 yen" from the server 300, the settlement shown in FIG. 13 is completed. The screen is displayed (step S425). Specifically, in step S432, the cart register device 200 displays the received second balance "840 yen" in the balance display area 20 of the display screen shown in FIG. Display "1,000 Yen".

After a predetermined time, the cart register device 200 displays "0 yen" in the balance display area 20, the total amount display area 21, and the difference display area 22 of the display screen. Return to the screen (step S426). After returning the display screen to the initial screen, the cart register device 200 deletes the product information, the total amount, the balance, and the difference between the balance and the total amount stored in the storage unit 201 (step S427), and ends the process. do.

In addition, regarding the processing of step S421, the server 200 may determine an amount determined according to the difference as the charge amount. In this case, server 300 refers to charge amount table 1003 stored in storage unit 302 to determine the difference and the charge amount corresponding to the recording medium identification information extracted in step S419, which is "1,000 yen".

In addition, regarding the process of step S421, the server 300 may determine the charge amount to be the same amount as the difference amount. In this case, the server 300 determines that the difference between the total amount of "660 yen" and the first balance of "500 yen" is "160 yen". Therefore, the server 300 determines the charge amount to be "160 yen", which is the same amount as the difference.

Note that the server 300 may transmit only the charging amount to the cart register device 200 in the process of step S423. Further, in step S425, the cart register device 200 may display only the charge amount.

After step S424, the server 300 may transmit an electronic receipt including the charge amount to the customer's portable terminal.

The operation of the information processing apparatus 1 when the determination result in the cart register apparatus 200 indicates that the total amount is equal to or less than the first balance will be described with reference to FIG. The processing of steps S415 to S420 is the same as when the determination result indicates that the total amount is greater than the first balance. If the total amount is less than or equal to the first balance, server 300 does not execute step 421, and in subsequent step S422 stores the amount obtained by subtracting the total amount from the first balance in balance table 1001 as the second balance. , to update the balance. Then, server 300 transmits the second balance to cart register device 200 in step S423. The processing of step S424 is the same as when the determination result indicates that the total amount is greater than the first balance.

Upon receiving the settlement start instruction from the determination device and the second balance from the server 300, the cart register device 200 displays the received second balance in the balance display area 20 of the display screen shown in FIG. 14 in step S425. Let The subsequent steps S425 and S426 are the same as the case where the determination result indicates that the total amount is greater than the first balance.

As described above, according to the present embodiment, the charge amount is determined according to the difference between the balance of the recording medium and the total amount. As a result, according to the information processing apparatus and the like of the present embodiment, it is possible to automatically charge the amount of money that can be used for payment for the purchased product.

[Modification 1]
In the information processing system 1, the recording medium may be charged with electronic money when a product with a total amount equal to or greater than the balance is registered.

The operation of each part of the information processing system 1 in Modification 1 will be described. When the customer operates the scanner to read the barcode attached to the product, the calculation unit 208 acquires the product information of the product from the cart register reception unit 205 . The calculation unit 208 adds the price of the product included in the acquired product information and the total price stored in the storage unit 201 to calculate the total price to be newly displayed on the display unit. Further, the calculation unit 208 calculates the difference by subtracting the calculated total amount from the balance stored in the storage unit 201 .

It is determined whether or not the difference calculated by the determination unit 209 and the calculation unit 208 is less than an arbitrary predetermined amount. In Modification 1, an example in which the predetermined amount of money is 0 yen will be described. When the determining unit 209 determines that the difference is less than 0 yen, the reading unit 203 reads the cart register identification information and transmits the difference and the cart register identifying information to the server 300 . When the determination unit 209 determines that the calculated difference amount is equal to or greater than the predetermined amount, the operation of each unit of the information processing system 1 is the same as that of the second embodiment.

When the server receiving unit 301 receives the difference and the cart register identification information, the server receiving unit 301 notifies the extracting unit 307 of the cart register identification information. The extracting unit 307 refers to the cart register device usage status table 1000 and extracts the recording medium identification information stored in correspondence with the notified cart register identification information. is notified to the balance acquisition unit 303 . The balance acquisition unit 303 refers to the balance table 1002 and acquires the stored balance corresponding to the notified recording medium identification information. Then, the balance acquisition unit 303 notifies the determination unit 308 of the difference, the cart register identification information, and the acquired balance. The determination unit 308 determines a charge amount according to the notified difference, and notifies the balance update unit 306 of the charge amount, balance, and cart register identification information. The balance update unit 306 stores the amount obtained by adding the charged amount to the notified balance in the balance table 1001 as a new balance. The balance update unit 306 then notifies the server transmission unit 304 of the charge amount, the new balance, and the cart register identification information. The server transmission unit 304 transmits the charge amount and the new balance to the cart register device 200 having the notified cart register identification information.

The cart register reception unit 205 notifies the calculation unit 208 of the new balance and charge amount. The calculation unit 208 calculates the difference between the new balance and the total amount by subtracting the total amount displayed on the display unit from the new balance. The calculation unit 208 then notifies the display control unit 206 of the new balance, the calculated difference amount, and the charge amount. The display control unit 206 generates a screen including the new balance, the difference calculated by the calculation unit, and the charge amount based on the new balance, the difference amount, and the charge amount, and updates the display on the display unit.

Note that the server transmission unit 304 may transmit only the charge amount to the cart register device 200 . In this case, the calculation unit 208 adds the charge amount to the balance displayed on the display unit to calculate a new balance. Then, by subtracting the total amount displayed on the display unit from the new balance, the difference between the new balance and the total amount is calculated.

Note that the cart register device 200 may display a confirmation screen for confirming whether charging is possible or not on the display unit. In this case, when the determination unit 308 determines the charge amount in the server 300 , the server transmission unit 304 transmits the charge amount to the cart register device 200 without updating the balance table 1001 .

When the cart register receiving unit 205 receives the charge amount, the display control unit 206 causes the display unit to display a confirmation screen shown in FIG. FIG. 15 is an example of a confirmation screen. The confirmation screen displays a charge amount display area 24 for displaying the received charge amount and an approval/disapproval input area 25 for receiving input from the customer as to whether the charge is approved or not. The confirmation screen may display a change input area 26 for accepting changes in the charge amount from the customer. When the customer inputs to change the charge amount in the change input area 26, the display control unit 206 changes the charge amount displayed in the charge amount display area 24 in accordance with the customer's input.

When the customer inputs the charge into the acceptance/rejection input area, the cart register device 200 transmits the charge amount displayed in the charge amount display area 24 and the cart register identification information to the server 300 . When the server receiving unit 301 receives the charge amount and the cart register identification information, the extracting unit 307 refers to the cart register device usage status table 1000 and extracts the recording medium identification information stored corresponding to the received cart register identification information. Extract. The balance acquisition unit 303 refers to the balance table 1002 and acquires the balance stored in correspondence with the extracted recording medium identification information. The balance update unit 306 stores the amount obtained by adding the received charge amount to the acquired balance in the balance table 1001 as a new balance.

As described above, according to this modified example, the charge amount is determined according to the difference between the balance of the recording medium and the total amount. As a result, according to the information processing apparatus and the like of the present modified example, it is possible to automatically charge the amount of money that can be used for payment for the purchased product.

[Modification 2]
In settlement processing, the information processing system 1 can communicate with a checkout terminal (not shown) such as a self-service POS terminal. At this time, the customer performs an input operation for instructing the accounting terminal to start settlement, and the cart register apparatus 200 receives the instruction to start settlement from the accounting terminal, thereby detecting the instruction to start settlement. Alternatively, the cart register device 200 may detect the instruction to start settlement when the customer inputs an instruction to start settlement from the input unit of the cart register device 200 .

The operation of each part of the information processing system 1 in Modification 2 will be described. When the customer performs an input operation on the accounting terminal or the cart register device 200 and the cart register device 200 detects a settlement start instruction, the cart register transmitting unit 204 transmits the products stored in the storage unit 201 of the accounting terminal. Send information and cart register identification information. The accounting terminal inquires of the server 300 about the balance of the recording medium associated with the received cart register identification information, and receives the balance from the server 300 . Then, the accounting terminal compares the total amount calculated based on the product information with the received balance. If the total amount is less than the balance, the accounting terminal completes the settlement by subtracting the total amount from the balance, and transmits settlement completion information indicating that the settlement has been completed to the cart register device 200.例文帳に追加When the balance is smaller than the total amount, the accounting terminal determines the charge amount according to the difference between the total amount and the balance. Then, the customer terminal completes settlement by subtracting the total amount from the amount obtained by adding the determined charge amount to the balance, and transmits settlement completion information including the charge amount to the cart register device 200 .

Upon receiving the settlement completion information, the cart register device 200 displays a settlement completion screen on the display unit. When the charge amount is included in the settlement completion information, the cart register device 200 displays the charge amount on the settlement completion screen. After a predetermined period of time from the display of the settlement completion screen, the display on the display unit is returned to the initial screen before the recording medium is read. When the display on the display unit 200 is returned to the initial screen, the cart register device 200 deletes the product information, the total amount, the balance, and the difference between the balance and the total amount stored in the storage unit 201 .

[Modification 3]
In settlement processing, the information processing system 1 can also process by communicating with a customer terminal (not shown) such as a smart phone or a tablet terminal owned by the customer. At this time, the cart register device 200 detects the instruction to start settlement when the customer inputs the instruction to start settlement from the input unit.

The cart register device 200 displays a two-dimensional code on the display unit when the instruction to start settlement is detected. Then, the two-dimensional code displayed on the customer terminal is read, the payment method is set to the electronic money of the recording medium read by the recording medium information acquisition unit 202, and the total amount of the registered product is input to the customer terminal. When the total amount is less than the balance, the customer terminal completes the settlement by subtracting the total amount from the balance and transmits settlement completion information to the cart register device 200 . Also, when the total amount is larger than the balance, the customer terminal determines the charge amount according to the difference between the total amount and the balance. Then, the customer terminal completes settlement by subtracting the total amount from the amount obtained by adding the determined charge amount to the balance, and transmits settlement completion information including the charge amount to the cart register device 200 .

Upon receiving the settlement completion information, the cart register device 200 displays a settlement completion screen on the display unit. When the charge amount is included in the settlement completion information, the cart register device 200 displays the charge amount on the settlement completion screen. After a predetermined period of time from the display of the settlement completion screen, the display on the display unit is returned to the initial screen before the recording medium is read. When the display on the display unit 200 is returned to the initial screen, the cart register device 200 deletes the product information, the total amount, the balance, and the difference between the balance and the total amount stored in the storage unit 201 .

The first and second embodiments described above can be appropriately combined without departing from the technical idea of the present invention.
[Appendix 1]
a recording medium information acquisition unit that acquires recording medium identification information from a recording medium;
a product identification information acquisition unit that acquires product identification information of a product;
a display control unit that causes a display unit to display a first balance corresponding to the acquired recording medium identification information and a total price of the product for which the product identification information is acquired;
a receiving unit that receives a charge amount determined according to the difference between the total amount and the first balance when the total amount of the merchandise for which the merchandise identification information is acquired is greater than the first balance. ,
The display control unit causes the display unit to display the received charge amount.
Information processing equipment.
[Appendix 2]
The information processing apparatus according to appendix 1, further comprising a calculation unit that calculates a total amount that is the sum of the amount information corresponding to the acquired product identification information.
[Appendix 3]
When the total amount when settlement is started is greater than the first balance, the receiving unit receives the charge amount determined according to the difference between the total amount and the first balance,
The display control unit causes the display unit to display the received charge amount.
The information processing device according to appendix 1 or 2.
[Appendix 4]
Further comprising a determination unit that determines whether the total amount is greater than the first balance,
3. The information processing apparatus according to any one of Appendices 1 to 3.
[Appendix 5]
Further comprising a determination unit that determines whether settlement has started,
5. The information processing device according to any one of Appendices 1 to 4.
[Appendix 6]
When the receiving unit receives the second balance, which is the balance after settlement, the display control unit causes the display unit to display a settlement completion screen indicating that the settlement has been completed.
6. The information processing apparatus according to any one of Appendices 1 to 5.
[Appendix 7]
The display control unit causes the display unit to display an initial screen after a predetermined time from displaying the settlement completion screen.
The information processing device according to appendix 6.
[Appendix 8]
The charge amount is the same amount as the difference,
8. The information processing apparatus according to any one of Appendices 1 to 7.
[Appendix 9]
8. The information processing apparatus according to any one of appendices 1 to 7, wherein the charge amount is an amount obtained by rounding up the difference amount to the nearest hundred.
[Appendix 10]
A receiving unit that receives product identification information of a product, recording medium identification information of a recording medium, and cart register identification information, and a storage unit that associates and stores the received recording medium identification information and the received cart register identification information. and,
when the total amount, which is the sum of the amount information corresponding to the received product identification information, is larger than the first balance corresponding to the received recording medium identification information, the difference between the total amount and the first balance a determination unit that determines the charge amount by
a transmission unit that transmits the charge amount to an information processing device corresponding to the received cart register identification information;
A server with
[Appendix 11]
an extraction unit that, when the receiving unit receives the cartridge identification information, extracts recording medium identification information corresponding to the received cartridge identification information from the storage unit;
a balance acquisition unit that acquires a first balance corresponding to the extracted recording medium identification information,
The server according to Appendix 10.
[Appendix 12]
The charge amount is the same amount as the difference,
12. The information processing device according to appendix 10 or 11.
[Appendix 13]
The charge amount is the amount obtained by rounding up the difference to the nearest hundred,
12. The information processing device according to appendix 10 or 11.
[Appendix 14]
an acquisition unit that acquires recording medium identification information and cartridge identification information of a recording medium;
a product identification information acquisition unit that acquires product identification information of a product;
When the total price of the product for which the product identification information is obtained is larger than the first balance corresponding to the obtained recording medium identification information, the charge amount is determined according to the difference between the total price and the first balance. a decision unit;
a display control unit for displaying the charge amount on a display unit corresponding to the acquired cart register identification information;
An information processing system comprising
[Appendix 15]
Acquiring recording medium identification information from a recording medium,
Acquire the product identification information of the product,
causing a display unit to display a first balance corresponding to the acquired recording medium identification information and a total price of the product for which the product identification information is acquired;
receiving a charge amount determined according to the difference between the total amount and the first balance when the total amount of the merchandise for which the merchandise identification information has been acquired is greater than the first balance;
displaying the received charge amount on the display unit;
Information processing methods.
[Appendix 16]
to the computer,
obtaining recording medium identification information from the recording medium;
obtaining product identification information for a product;
displaying, on a display unit, a first balance corresponding to the obtained recording medium identification information and a total price of the product for which the product identification information is obtained;
receiving a charge amount determined according to the difference between the total amount and the first balance when the total amount of the merchandise for which the merchandise identification information has been acquired is greater than the first balance;
a step of displaying the received charge amount on the display unit;
program to run the
[Appendix 17]
receiving product identification information of a product, recording medium identification information of a recording medium, and cart register identification information, and storing the received recording medium identification information and the received cart register identification information in association with each other;
when the total amount, which is the sum of the amount information corresponding to the received product identification information, is larger than the first balance corresponding to the received recording medium identification information, the difference between the total amount and the first balance to determine the charge amount,
transmitting the charge amount to an information processing device corresponding to the received cart register identification information;
Information processing methods.
[Appendix 18]
to the computer,
a step of receiving product identification information of a product, recording medium identification information of a recording medium, and cart register identification information; a step of associating and storing the received recording medium identification information and the received cart register identification information;
when the total amount, which is the sum of the amount information corresponding to the received product identification information, is larger than the first balance corresponding to the received recording medium identification information, the difference between the total amount and the first balance determining the charge amount by
a step of transmitting the charge amount to an information processing device corresponding to the received cart register identification information;
program to run the
[Appendix 19]
Acquiring recording medium identification information and cartridge identification information of a recording medium,
Acquire the product identification information of the product,
When the total price of the product for which the product identification information is obtained is larger than the first balance corresponding to the obtained recording medium identification information, the charge amount is determined according to the difference between the total price and the first balance. ,
displaying the charge amount on a display unit corresponding to the acquired cart register identification information;
Information processing methods.
[Appendix 20]
to the computer,
obtaining recording medium identification information and cartridge identification information of the recording medium;
obtaining product identification information for a product;
When the total price of the product for which the product identification information is obtained is larger than the first balance corresponding to the obtained recording medium identification information, the charge amount is determined according to the difference between the total price and the first balance. a step;
displaying the charge amount on a display unit corresponding to the acquired cart register identification information;
program to run the

1 Information Processing Systems 100, 200 Cart Register Devices 101, 202 Recording Medium Information Acquiring Units 102, 207 Product Identification Information Acquiring Units 103, 206 Display Control Unit 104 Receiving Units 201, 302 Storage Unit 203 Reading Unit 204 Cart Register Transmitting Unit 205 Cart Cash register reception unit 208 Calculation unit 300 Server 301 Server reception unit 303 Balance acquisition unit 304 Server transmission unit 305 Merchandise information acquisition unit 306 Balance update unit 307 Extraction unit 209 Judgment unit 308 Determination unit 1000 Cart cash register device usage status tables 1001 and 1002 Balance table 1003 charge amount table 209, 309 bus 210, 310 CPU
211, 311 memory 212, 312 storage device 213 input/output interface 214, 313 communication interface 21 total amount display area 22 difference display area 23 registered product display area 24 charge amount display area 25 approval/disapproval input area 26 change input area

Claims (9)

a recording medium information acquisition unit that acquires recording medium identification information from a recording medium;
a product identification information acquisition unit that acquires product identification information of a product;
a display control unit that causes a display unit to display a first balance corresponding to the acquired recording medium identification information and a total price of the product for which the product identification information is acquired;
a transmission unit configured to transmit to a server a determination result as to whether or not the total price of the product for which the product identification information is acquired is greater than the first balance;
a receiving unit configured to receive, from the server, the charge amount determined by the server when the determination result indicates that the total amount of the product for which the product identification information is acquired is greater than the first balance. ,
The display control unit causes the display unit to display a confirmation screen for confirming whether or not the received charge amount can be charged.
Information processing equipment. The confirmation screen includes a display for accepting a change in the charge amount,
The information processing device according to claim 1 . If the total amount when settlement is started is greater than the first balance, the receiving unit receives the charge amount determined by the server.
The information processing apparatus according to claim 1 or 2. The charge amount is determined according to the difference between the total amount and the first balance,
The information processing apparatus according to any one of claims 1 to 3. The charge amount is the same amount as the difference,
The information processing apparatus according to claim 4. The charge amount is the amount obtained by rounding up the value indicated by the difference to the highest place,
The information processing apparatus according to claim 4. a recording medium information acquisition unit that acquires recording medium identification information from a recording medium;
a product identification information acquisition unit that acquires product identification information of a product;
a display control unit that causes a display unit to display a first balance corresponding to the acquired recording medium identification information and a total price of the product for which the product identification information is acquired;
a transmission unit configured to transmit to a server a determination result as to whether or not the total price of the product for which the product identification information is acquired is greater than the first balance;
a receiving unit configured to receive, from the server, the charge amount determined by the server when the determination result indicates that the total amount of the product for which the product identification information is acquired is greater than the first balance. ,
The display control unit causes the display unit to display a confirmation screen for confirming whether or not the received charge amount can be charged.
Information processing system. The information processing device
Acquiring recording medium identification information from a recording medium,
Acquire the product identification information of the product,
causing a display unit to display a first balance corresponding to the acquired recording medium identification information and a total price of the product for which the product identification information is acquired;
transmitting to the server a determination result as to whether or not the total price of the product for which the product identification information has been acquired is greater than the first balance;
if the determination result indicates that the total amount of the product for which the product identification information is acquired is greater than the first balance, receiving from the server the charge amount determined by the server;
causing the display unit to display a confirmation screen for confirming whether or not the received charge amount can be charged;
Information processing methods. to the computer,
obtaining recording medium identification information from the recording medium;
obtaining product identification information for a product;
displaying, on a display unit, a first balance corresponding to the obtained recording medium identification information and a total price of the product for which the product identification information is obtained;
a step of transmitting to a server a determination result as to whether or not the total price of the product for which the product identification information has been acquired is greater than the first balance;
receiving from the server the charge amount determined by the server when the determination result indicates that the total amount of the product for which the product identification information is acquired is greater than the first balance;
a step of displaying a confirmation screen for confirming whether or not the received charge amount can be charged on the display unit;
Information processing program for executing

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