JP5486961B2 - Money transaction program, money transaction method, and money transaction apparatus - Google Patents

Description

  The present invention relates to a money transaction program, a money transaction method, and a money transaction apparatus that perform money transactions.

  2. Description of the Related Art When a customer purchases a product, there is a money transaction apparatus that pays change to the customer according to the payment amount paid by the customer. An example of the money transaction apparatus is a POS (Point Of Sales) terminal.

The change paid by the money transaction apparatus is accommodated in a container such as a wallet of the customer, but the customer tends to dislike that a large amount of coins are accumulated in the wallet or the like.
On the other hand, when a customer makes a payment, there is a money transaction apparatus that presents to a customer a payment amount that reduces the number of coins included in the change on a display screen. In this money transaction apparatus, a customer can receive a change with a small number of coins by paying the presented payment amount.

  For example, there is a technique for creating a combination pattern of payment amount and change so that the number of denominations of the change with respect to the total amount of products purchased by the customer is a certain number or less, and displaying the combination pattern of the payment amount and change on the display device. Exists (see, for example, Patent Document 1).

  In addition, every time a sales amount is input or a deposit is received, a technique for calculating an additional input amount that reduces the number of bills or coins constituting the excess / deficiency amount and displaying it on the display unit (See, for example, Patent Document 2).

  In addition, there is a technique for displaying a combination of the deposit amount and the change amount on the customer display in the order in which the number of coins of the change amount is smaller than the number of coins of the deposit amount based on the data input related to the sales product ( For example, see Patent Document 3).

  In addition, there is a technique for calculating an input amount that minimizes the number of change when it is determined that the number of change is increased, and displaying the input amount on a settlement guidance screen (see, for example, Patent Document 4).

JP 2003-281627 A JP 2009-301420 A JP 2008-123123 A JP 2008-176395 A

  However, even if the number of coins included in the change can be reduced, if the change includes a coin that cannot be used with a vending machine, such as a 1-yen coin or a 5-yen coin, such a coin is used. Because there are few opportunities to be played, coins may accumulate in a wallet or other container.

  In view of these points, a money transaction program, a money transaction method, and a money transaction apparatus that present a payment amount that reduces the possibility of change being accumulated in a container such as a wallet of a customer are provided.

In order to achieve the above object, the following money trading program is provided.
In this money transaction program, a first change candidate and a priority order of the first change candidate are set in association with each value of a denomination unit that does not include a predetermined denomination in the purchase amount, and the storage means refers to the first change candidate table stored in, based on the input purchase amount, the first change candidate extraction means for extracting a first change candidate corresponding to the purchase amount, predetermined punching in purchase price The second change candidate and the priority of the second change candidate are set in association with each value of the denomination unit including the seed, and are input with reference to the second change candidate table stored in the storage means. It was based on the purchase amount, based on the second second change candidate extraction means for extracting a change candidate, first change candidate first change candidate extraction unit and extracted corresponding to the purchase amount, deposit first Calculate the amount candidate , Based on the second change candidate second change candidate extracting means has extracted the amount candidate calculating means Luggage and out calculate the second deposit amount candidate, Luggage first deposit between amounts candidates amount candidate calculating means is calculated Is set based on the priority order of the corresponding first change candidate, and the priority order between the calculated second deposit amount candidates is set based on the priority order of the corresponding second change candidate , Further, the priority amount setting means for setting the first deposit amount candidate to be higher in priority than the second deposit amount candidate, the first deposit amount candidate and the second deposit amount candidate calculated by the deposit amount candidate calculating means. Based on the priority order set by the priority order setting means, the display means functions as an output means.

  According to the disclosed monetary transaction program, monetary transaction method, and monetary transaction apparatus, it is possible to present a payment amount that reduces the possibility that change will accumulate in a container such as a customer's wallet.

It is a figure which shows an example of the money transaction apparatus which concerns on 1st Embodiment. It is a figure which shows an example of the POS system which concerns on 2nd Embodiment. It is a block diagram which shows an example of the hardware of the POS terminal which concerns on 2nd Embodiment. It is a block diagram which shows an example of the function of the POS terminal which concerns on 2nd Embodiment. It is a block diagram which shows an example of the function of the POS terminal which concerns on 2nd Embodiment. It is a figure which shows an example of the change 1st candidate table which concerns on 2nd Embodiment. It is a figure which shows an example of the change 3rd candidate table which concerns on 2nd Embodiment. It is a figure which shows an example of the change 3rd candidate table which concerns on 2nd Embodiment. It is a figure which shows an example of the change 3rd candidate table which concerns on 2nd Embodiment. It is a figure which shows an example of the change 3rd candidate table which concerns on 2nd Embodiment. It is a figure which shows an example of the change 3rd candidate table which concerns on 2nd Embodiment. It is a figure which shows an example of the priority order change candidate storage means which concerns on 2nd Embodiment. It is a figure which shows an example of the priority order deposit amount candidate memory | storage means based on 2nd Embodiment. It is a flowchart which shows an example of the process sequence of the POS terminal which concerns on 2nd Embodiment. It is a flowchart which shows an example of the process sequence of the POS terminal which concerns on 2nd Embodiment. It is a flowchart which shows an example of the process sequence of the POS terminal which concerns on 2nd Embodiment. It is a flowchart which shows an example of the process sequence of the POS terminal which concerns on 2nd Embodiment. It is a flowchart which shows an example of the process sequence of the POS terminal which concerns on 2nd Embodiment. It is a flowchart which shows an example of the process sequence of the POS terminal which concerns on 2nd Embodiment. It is a flowchart which shows an example of the process sequence of the POS terminal which concerns on 2nd Embodiment. It is a figure which shows an example of the screen of the display means which concerns on 2nd Embodiment. It is a figure which shows an example of the change 1st candidate table and change 3rd candidate table which concern on 3rd Embodiment. It is a flowchart which shows an example of the process sequence of the POS terminal which concerns on 3rd Embodiment. It is a flowchart which shows an example of the process sequence of the POS terminal which concerns on 3rd Embodiment. It is a flowchart which shows an example of the process sequence of the POS terminal which concerns on 3rd Embodiment. It is a flowchart which shows an example of the process sequence of the POS terminal which concerns on 3rd Embodiment.

Hereinafter, embodiments will be described with reference to the drawings.
[First Embodiment]
FIG. 1 is a diagram illustrating an example of a money transaction apparatus according to the first embodiment.

  The money transaction apparatus 10 includes an input unit 11, a first change candidate extraction unit 12, a second change candidate extraction unit 13, a deposit amount candidate calculation unit 14, a priority setting unit 15, and an output unit 16. And display means 17.

In the input means 11, the purchase price of the product purchased by the customer is input.
The first change candidate extraction unit 12 extracts change candidates that do not include the predetermined denomination A based on the purchase amount input to the input unit 11. Here, the denomination refers to the type of money. The denomination A is, for example, a 1 yen coin or a 5 yen coin.

The second change candidate extraction unit 13 extracts change candidates including the denomination A based on the purchase amount input to the input unit 11.
The deposit amount candidate calculation unit 14 calculates deposit amount candidates based on the change candidates extracted by the first change candidate extraction unit 12 and the second change candidate extraction unit 13, respectively. Here, the deposit amount candidate indicates a payment amount candidate to be paid by the customer. That is, the deposit amount candidate corresponds to an amount obtained by adding the change candidate to the purchase amount.

  The priority order setting unit 15 sets a priority order for the deposit amount candidates calculated by the deposit amount candidate calculation unit 14. Furthermore, the priority order setting means 15 gives higher priority to the deposit amount candidate that does not include the denomination A in the change than the deposit amount candidate that includes the denomination A in the change.

The output unit 16 causes the display unit 17 to display the deposit amount candidate calculated by the deposit amount candidate calculation unit 14 based on the priority order set by the priority order setting unit 15.
For example, the display unit 17 displays the deposit amount candidates so that the deposit amount candidate having a high priority is positioned at the top.

Next, the processing procedure of the money transaction apparatus 10 will be described.
When the purchase amount is input to the input means 11, the process is started.
First, the first change candidate extraction unit 12 extracts change candidates that do not include the denomination A based on the input purchase price.

Next, the second change candidate extraction unit 13 extracts change candidates including the denomination A based on the input purchase amount.
Next, the deposit amount candidate calculation unit 14 calculates deposit amount candidates based on the change candidates extracted by the first change candidate extraction unit 12 and the second change candidate extraction unit 13, respectively.

  Next, the priority order setting unit 15 sets the priority order for the deposit amount candidates calculated by the deposit amount candidate calculation unit 14. Here, the priority order setting means 15 makes the deposit amount candidate not including the denomination A in the change higher in priority than the deposit amount candidate including the denomination A in the change.

Next, the output unit 16 causes the display unit 17 to display the deposit amount candidate calculated by the deposit amount candidate calculation unit 14 based on the priority order set by the priority order setting unit 15.
As described above, in the money transaction apparatus 10, the deposit amount candidate that does not include the denomination A in the change is given higher priority than the deposit amount candidate that includes the denomination A in the change, and the deposit amount candidate is based on this priority. Is displayed on the display means 17.

  Accordingly, by setting the denomination A to, for example, a 1-yen coin or a 5-yen coin that cannot be used in a vending machine or the like, a deposit amount candidate that does not include a 1-yen coin or a 5-yen coin in the change is given higher priority Can be presented to the customer.

That is, it becomes possible to present a payment amount that reduces the possibility that change will accumulate in containers such as a customer's wallet.
Next, an embodiment in which the money transaction apparatus 10 is applied to a POS terminal will be described as a second embodiment.

[Second Embodiment]
FIG. 2 is a diagram illustrating an example of a POS system according to the second embodiment.
In the POS system, a management server 600 and a plurality of POS terminals 100 a and 100 b are connected to a network 500.

  In the POS terminals 100a and 100b, a transaction of money when a customer purchases a product, that is, settlement is performed. The POS terminals 100a and 100b are input with the type of product purchased by the customer, the purchase price of the product, the deposit amount paid by the customer, and the POS terminals 100a and 100b. , And automatically calculate change based on the deposit amount.

  The management server 600 acquires information such as the type of product purchased by the customer and the purchase price from the POS terminals 100a and 100b via the network 500, and performs tabulation and management of the acquired information.

  Next, the POS terminal will be described in detail. The POS terminals 100a and 100b have the same structure, and the POS terminal 100 representing them will be described below.

First, the hardware of the POS terminal 100 will be described. FIG. 3 is a block diagram illustrating an example of hardware of a POS terminal according to the second embodiment.
The entire POS terminal 100 is controlled by a CPU (Central Processing Unit) 101. A random access memory (RAM) 102, a hard disk drive (HDD) 103, a display 104, a keyboard 105, a touch panel 106, and a communication interface 107 are connected to the CPU 101 via a bus 113. Further, a printer 108, a barcode scanner 109, a customer display 110, a drawer 111, and an electronic multi-item keyboard 112 are connected to the CPU 101 via a bus 113.

  The electronic multi-item keyboard 112 has a display 112a, a keyboard 112b, and a touch panel 112c. The electronic multi-item keyboard 112 is operated and browsed by the customer.

  The RAM 102 temporarily stores at least part of an OS (Operating System) program and application programs to be executed by the CPU 101. The RAM 102 stores various data necessary for processing by the CPU 101. The HDD 103 stores the OS, application programs, and various data.

  The display 104, the customer display 110, and the display 112a display images on the screen according to instructions from the CPU 101. Signals input from the keyboard 105, the touch panel 106, the barcode scanner 109, the keyboard 112 b, and the touch panel 112 c are transmitted to the CPU 101 via the bus 113. The printer 108 and the drawer 111 are controlled according to a command from the CPU 101.

  The communication interface 107 is connected to the network 500, receives information from the outside via the network 500, and transmits information to the outside. Information received from the outside by the communication interface 107 is transferred to the CPU 101 via the bus 113. In addition, the communication interface 107 transmits information transferred from the CPU 101 or the HDD 103 via the bus 113 to the outside.

The processing function of the POS terminal 100 can be realized by such hardware.
Next, functions of the POS terminal 100 will be described.

4 and 5 are block diagrams illustrating an example of functions of the POS terminal according to the second embodiment. First, it demonstrates using FIG.
The POS terminal 100 includes purchase amount input means 201, total amount calculation means 202, deposit amount candidate extraction means 203, display means 204, deposit amount input means 205, and change calculation means 206.

In the purchase price input means 201, the purchase price of the product purchased by the customer is input.
The total amount calculation unit 202 calculates the total purchase amount input to the purchase amount input unit 201.

  The deposit amount candidate extraction unit 203 extracts deposit amount candidates based on the total purchase amount calculated by the total amount calculation unit 202. Here, the deposit amount candidate indicates a payment amount candidate to be paid by the customer. That is, the deposit amount candidate is equivalent to the sum of the purchase amount plus the change candidate.

The deposit amount input means 205 receives the deposit amount actually paid by the customer.
The change calculation unit 206 calculates the change by subtracting the total of the purchase amounts calculated by the total amount calculation unit 202 from the deposit amount input to the deposit amount input unit 205.

  The display unit 204 displays the total of the purchase amounts calculated by the total amount calculation unit 202, the deposit amount candidates extracted by the deposit amount candidate extraction unit 203, and the change calculated by the change calculation unit 206 on the screen.

Next, details of the deposit amount candidate extraction means 203 will be described with reference to FIG.
The deposit amount candidate extraction unit 203 includes a change first candidate extraction unit 301, a change first candidate storage unit 302, a change third candidate extraction unit 303, a change third candidate storage unit 304, and a change second candidate extraction unit. 305. Further, the deposit amount candidate extraction unit 203 includes a priority order change candidate storage unit 306, a deposit amount candidate calculation unit 307, a priority order deposit amount candidate storage unit 308, and a deposit amount candidate output unit 309.

  The change first candidate storage unit 302 stores a change first candidate table. In the change first candidate table, a plurality of change candidates in units of 100 yen and priorities based on the total purchase amount are stored in association with each other.

  The change third candidate storage unit 304 stores a plurality of change third candidate tables. In one change third candidate table, a plurality of change candidates in units of 10 yen and a priority order based on the total purchase amount are stored in association with each other. In another one of the third change change candidate table, a plurality of change candidates in units of 5 yen and a priority order based on the total purchase amount are stored in association with each other. In another one of the third change change candidate table, a plurality of change candidates including 1 yen and a priority order based on the total purchase amount are stored in association with each other.

  The priority order change candidate storage means 306 has a plurality of storage areas. In each storage area, change candidates are stored. Each storage area is arranged in descending order of priority. Further, the change order candidate storage unit 306 in order of priority includes a change first candidate area, a change second candidate area, and a change third candidate area, each including a plurality of continuous storage areas. The change first candidate area is positioned first, the change second candidate area is positioned next, and then the change third candidate area is positioned.

  The priority order deposit amount candidate storage means 308 has a plurality of storage areas. Each storage area stores deposit amount candidates. Each storage area is arranged in descending order of priority. Further, the priority order deposit amount candidate storage means 308 includes a deposit amount first candidate region, a deposit amount second candidate region, and a deposit amount third candidate region each including a plurality of continuous storage areas. The deposit amount first candidate area is positioned first, the deposit amount second candidate area is positioned next, and the deposit amount third candidate area is positioned next.

  The change first candidate extraction unit 301 refers to the change first candidate table stored in the change first candidate storage unit 302, and based on the total of the input purchase amount, the change candidate in units of 100 yen having a high priority. To extract. Furthermore, the change first candidate extraction means 301 stores the extracted change candidates in units of 100 yen in the change first candidate area of the priority order change change candidate storage means 306. When there are a plurality of change candidates, the change first candidate extraction unit 301 stores a plurality of change candidates in the change first candidate area.

  The change third candidate extraction means 303 refers to one of the change third candidate tables storing change candidates in units of 10 yen stored in the change third candidate storage means 304, and is based on the total of the input purchase amounts. Thus, change candidates of 10 yen units with high priority are extracted. Further, the change third candidate extraction unit 303 stores the extracted change candidates in the change third candidate area of the priority order change candidate storage unit 306. If there are a plurality of change candidates, the change third candidate extraction unit 303 stores the plurality of change candidates in the change third candidate area.

  Furthermore, the change third candidate extraction unit 303 refers to one of the change third candidate tables storing change candidates in units of 5 yen stored in the change third candidate storage unit 304, and inputs the total of the input purchase amounts. Based on the above, change candidates of 5 yen units with high priority are extracted. Further, the change third candidate extraction unit 303 stores the extracted change candidates in the change third candidate area of the priority order change candidate storage unit 306. If there are a plurality of change candidates, the change third candidate extraction unit 303 stores the plurality of change candidates in the change third candidate area.

  Further, the change third candidate extraction unit 303 refers to one of the change third candidate tables storing the change candidates including 1 yen stored in the change third candidate storage unit 304, and inputs the total of the input purchase amounts. Based on the above, change candidates including one yen with high priority are extracted. Further, the change third candidate extraction unit 303 stores the extracted change candidates in the change third candidate area of the priority order change candidate storage unit 306. If there are a plurality of change candidates, the change third candidate extraction unit 303 stores the plurality of change candidates in the change third candidate area.

  Here, the change third candidate extraction unit 303 stores change candidates in units of 10 yen in the top storage area when storing the change candidates extracted in the change third candidate area of the priority order change change candidate storage unit 306. A change candidate in units of 5 yen is stored in the next storage area, and a change candidate including 1 yen is stored in the next storage area.

  The change second candidate extraction unit 305 extracts all change candidates stored in the change third candidate area from the priority order change candidate storage unit 306. Further, the change second candidate extraction means 305 calculates a value obtained by adding 500 yen to each of the extracted change candidates. If the calculated value is 1000 yen or more, the calculated value is used as a change candidate. The change is stored in the change second candidate area of the priority order change change candidate storage means 306. Here, the change second candidate extraction unit 305 stores the calculated change candidates in the change second candidate area in the order in which the change candidates that are the calculation source are arranged in the change third candidate area.

  The deposit amount candidate calculation unit 307 calculates deposit amount candidates based on all the change candidates stored in the priority order change candidate storage unit 306. Furthermore, the deposit amount candidate calculation unit 307 stores the calculated deposit amount candidate in the priority order deposit amount candidate storage unit 308. Here, the deposit amount candidate calculation unit 307 stores the calculated deposit amount candidate in the priority order deposit amount candidate storage unit 308 in accordance with the arrangement order of the change candidate priority order change candidate storage unit 306 that is the calculation source. Store.

  That is, in the first deposit area of the deposit amount candidate storage unit 308 in priority order, the change amount that is the calculation source is stored in the first change area of the change order candidate storage unit 306 in the priority order. Candidates are stored. Furthermore, in the second deposit amount candidate area, a deposit amount candidate in which the change candidate that is the calculation source is stored in the second change candidate area is stored. Further, in the third deposit amount candidate area, a deposit amount candidate in which the change candidate that is the calculation source is stored in the third change candidate area is stored.

  In other words, in the priority order deposit amount candidate storage means 308, from the top, a deposit amount candidate with change of 100 yen unit, a deposit amount candidate with change of 10 yen unit, a deposit amount candidate with change of 5 yen unit, And the deposit amount candidate including 1 yen in change is stored in order.

In this way, the deposit amount candidate calculation unit 307 calculates deposit amount candidates and sets priorities for the calculated deposit amount candidates.
The deposit amount candidate output unit 309 outputs the deposit amount candidates stored in the priority order deposit amount candidate storage unit 308 to the display unit 204 shown in FIG. 4 along the arrangement order in the priority sequence deposit amount candidate storage unit 308. To do.

The display unit 204 displays the deposit amount candidates output from the deposit amount candidate output unit 309 on the screen so that the items with the earlier output order are positioned higher.
That is, on the screen of the display means 204, from the top, a deposit amount candidate with a change of 100 yen unit, a deposit amount candidate with a change of 10 yen unit, a change amount candidate with a change of 5 yen unit, and a change Deposit amount candidates including 1 yen are displayed in order.

Next, details of the change first candidate table for storing change candidates in units of 100 yen stored in the change first candidate storage unit 302 will be described.
FIG. 6 is a diagram illustrating an example of a change first candidate table according to the second embodiment.

Each value 23a of the change first candidate table 302a indicates the priority of the change candidate 22a in units of 100 yen with respect to the amount 21a in units of 100 yen in the purchase amount.
The amount of money 21a in the unit of 100 yen in the purchase amount indicates an amount obtained by multiplying 100 to the 100th of the purchase amount.

  The change candidate 22a has an amount from 100 yen to 900 yen, and in this example, it is 100 yen, 200 yen, 500 yen, and 600 yen. All of these are amounts that can be paid within two coins, and since the number of coins is small, they are considered as change candidates. The 300 yen, 400 yen, 700 yen, 800 yen, and 900 yen are excluded from change candidates here because there are three or more coins.

The priority “1” indicates the highest priority as a change candidate, and the priority “2” indicates the next highest priority as a change candidate.
In this example, priority “1” is given to the change candidate 22a corresponding to the amount obtained by subtracting the amount 21a of 100 yen unit in the purchase amount from 1000 yen, and the amount of 100 yen unit in the purchase amount from 500 yen. The priority “2” is given to the change candidate 22a corresponding to the amount obtained by subtracting 21a.

  For example, when the purchase amount is 410 yen and the amount 21a of 100 yen unit in the purchase amount is 400 yen, 600 yen is the priority “1” and 100 yen is the priority “2” as change candidates. .

  Further, “0” is assigned to the change candidates 22a to which the priority orders “1” and “2” are not assigned. “0” indicates that there is no meaning as a change candidate. For example, if the purchase amount is 110 yen and the amount of 100 yen unit in the purchase amount is 100 yen, it is unlikely that the change will be 100 yen. This is because when the change is 100 yen, the deposit amount is 210 yen, but if this amount can be paid, the purchase amount of 110 yen can be paid without change.

Next, details of the change third candidate table for storing change candidates in units of 10 yen stored in the change third candidate storage unit 304 will be described.
FIG. 7 is a diagram illustrating an example of a change third candidate table according to the second embodiment.

Each value 43a of the third change change candidate table 304a indicates the priority of the change candidate 42a in units of 10 yen with respect to the amount 41a in units of 10 yen in the purchase amount.
The amount 41a in units of 10 yen in the purchase amount indicates an amount obtained by multiplying the 10th place of the purchase amount by 10.

  The change candidates 42a are amounts from 10 yen to 90 yen, and in this example, are 10 yen, 20 yen, 50 yen, and 60 yen. All of these are amounts that can be paid within two coins, and since the number of coins is small, they are considered as change candidates. About 30 yen, 40 yen, 70 yen, 80 yen, and 90 yen, since there are three or more coins, they are excluded from change candidates here.

  In this example, the change candidate 42a corresponding to the amount obtained by subtracting the 10 yen unit amount 41a in the purchase amount from 50 yen, and the 50 yen change candidate in the case where the 10 yen unit amount 41a in the purchase amount is larger than 50 yen. 42a is assigned a priority “1”. Furthermore, the priority “2” is given to the change candidate 42a corresponding to the amount obtained by subtracting the amount 41a of 10 yen unit in the purchase amount from 100 yen.

  The priority ranking is performed based on the following viewpoint, for example, for the purpose of reducing the amount of coins accumulated in the customer's wallet or the like. One is that the number of coins included in the change is small. One is that the number of coins included in the deposit amount is large.

  For example, when the purchase amount is 441 yen and the purchase amount 41a in the unit of 10 yen is 40 yen, 10 yen is the priority “1” and 60 yen is the priority “2” as the change candidate. . In addition, when the purchase amount is 481 yen and the amount 41a in 10 yen unit in the purchase amount is 80 yen, 50 yen is the priority “1” and 20 yen is the priority “2” as the change candidate. .

Further, “0” is assigned to the change candidates 42a to which the priority orders “1” and “2” are not assigned.
Next, the change 3rd candidate table which stores the change candidate of 5 yen unit which the 3rd change candidate memory | storage means 304 memorize | stores is demonstrated. The change third candidate table storing change candidates in units of 5 yen is divided into two tables.

8 and 9 are diagrams illustrating an example of the change third candidate table according to the second embodiment.
The change third candidate table 304b shown in FIG. 8 is a table used when the amount of the first place of the purchase amount is 5 yen, and the change third candidate table 304c shown in FIG. This table is used when the amount of money is 6 yen or more.

  Note that it is unlikely that the change will be in units of 5 yen when the 1st digit of the purchase price is 4 yen or less. Because when the amount of the first place of the purchase amount is 4 yen, in order for the change to be in units of 5 yen, the amount of the first place of the deposit amount is 9 yen, but if this amount can be paid In the first place, 4 yen can be paid without change. For this reason, a table corresponding to the case where the first-order amount of the purchase amount is 4 yen or less is not prepared.

First, the change third candidate table 304b used when the one-order amount of the purchase amount is 5 yen will be described.
Each value 43b of the change third candidate table 304b indicates the priority order of the change candidate 42b in units of 5 yen with respect to the amount 41b in units of 5 yen out of the last two digits of the purchase amount.

  The change candidate 42b is an amount of money from 5 yen to 95 yen, and in this example, it is 5 yen, 15 yen, and 55 yen. All of these are amounts that can be paid within two coins, and since the number of coins is small, they are considered as change candidates. 25 yen, 35 yen, 45 yen, 65 yen, 75 yen, 85 yen, and 95 yen are excluded from the change candidates because there are three or more coins.

  The priority “1” indicates that the priority as the change candidate is the highest, the priority “2” indicates that the priority as the next change candidate is the highest, and the priority “3” indicates that Next, it indicates that the priority as a change candidate is high, and the priority “4” indicates that the priority is the next highest as a change candidate.

  In this example, the priority “1” is given to the change candidate 42b of 55 yen when the last two-digit amount 41b of the purchase price is larger than 45 yen and smaller than 95 yen. Furthermore, the priority “2” is given to the change candidate 42b of 5 yen. Furthermore, a priority “3” is given to the change candidate 42b corresponding to the amount obtained by subtracting the last two-digit amount 41b of the purchase amount from 100 yen. Furthermore, a priority “4” is given to the change candidate 42b corresponding to the amount obtained by subtracting the last two-digit amount 41b of the purchase amount from 50 yen.

  The priority ranking is performed based on the following viewpoint, for example, for the purpose of reducing the amount of coins accumulated in the customer's wallet or the like. One is that the number of coins included in the change is small. One is that the number of coins included in the deposit amount is large. One is that the number of 1-yen coins and 5-yen coins included in the change is small. One is that the number of 1-yen coins and 5-yen coins included in the deposit amount is large.

  For example, when the purchase amount is 485 yen and the last two-digit amount 41b of the purchase amount is 85 yen, 55 yen is a priority “1” as a change candidate, and 5 yen is a priority “2”. 15 yen becomes the priority “3”.

Further, “0” is assigned to the change candidates 42b to which the priority orders “1” to “4” are not assigned.
Next, the change third candidate table 304c used when the one-order amount of the purchase amount is 6 yen or more will be described.

Each value 43c in the third change change candidate table 304c indicates the priority order of the change candidate 42c in units of 5 yen with respect to the amount 41c whose first place is 6 yen or more among the last two digits of the purchase amount.
Regarding the lower two-digit amount 41c of the purchase amount, the first place is indicated by “x”.

  The change candidate 42c is an amount of money from 5 yen to 95 yen, and in this example, it is 5 yen, 15 yen, and 55 yen. All of these are amounts that can be paid within two coins, and since the number of coins is small, they are considered as change candidates. 25 yen, 35 yen, 45 yen, 65 yen, 75 yen, 85 yen, and 95 yen are excluded from the change candidates because there are three or more coins.

  In this example, the priority “1” is given to the 55 yen change candidate 42c when the last two-digit amount 41c of the purchase amount is larger than 39 yen and smaller than 96 yen. Further, the priority “2” is given to the change candidate 42c of 5 yen. Furthermore, the priority “3” is given to the change candidate 42c that is the next largest from the amount obtained by subtracting the last two-digit amount 41c of the purchase amount from 100 yen. Furthermore, the priority “4” is given to the change candidate 42c that is the next largest from the amount obtained by subtracting the last two-digit amount 41c of the purchase amount from 50 yen.

  For example, when the purchase amount is 486 yen and the last two-digit amount 41c of the purchase amount is 86 yen, the change candidate 42c is 55 yen with priority “1” and 5 yen with priority “2”. , 15 yen becomes the priority “3”.

Further, “0” is assigned to the change candidate 42c to which the priority orders “1” to “4” are not assigned.
Next, the change 3rd candidate table which stores the change candidate containing 1 yen which the change 3rd candidate memory | storage means 304 memorize | stores is demonstrated. The change third candidate table storing change candidates including 1 yen is divided into two tables.

10 and 11 are diagrams illustrating an example of the change third candidate table according to the second embodiment.
The change third candidate table 304d shown in FIG. 10 is a table used when the amount of the first place of the purchase amount is 4 yen, and the change third candidate table 304e shown in FIG. It is a table used when the amount of money is 9 yen.

  In addition, when the amount of the first place of the purchase amount is not 4 yen or 9 yen, since the change includes two or more 1 yen coins, it is excluded from the candidates for the change. For this reason, a table corresponding to the case where the first-order amount of the purchase amount is not 4 yen or 9 yen is not prepared.

First, the change third candidate table 304d used when the one-order amount of the purchase amount is 4 yen will be described.
Each value 43d of the third change change candidate table 304d indicates the priority order of the change candidate 42d including 1 yen with respect to the amount 41d of which the last one digit is 4 yen out of the last two digits of the purchase amount.

  The change candidate 42d has an amount of 1 to 96 yen, and in this example, 1 yen, 6 yen, 11 yen, and 51 yen. All of these are amounts that can be paid within two coins, and since the number of coins is small, they are considered as change candidates. Other amounts are excluded from change candidates because there are three or more coins.

  The priority “1” indicates that the priority as the change candidate is the highest, the priority “2” indicates that the priority as the next change candidate is the highest, and the priority “3” indicates that Next, it indicates that the priority as a change candidate is high, the priority “4” indicates that the priority is the next highest as a change candidate, and the priority “5” indicates that the change is the next change candidate. The priority is high, and the priority “6” indicates that the priority is the next highest change candidate.

  In this example, the priority “1” is given to the change candidate 42d of 51 yen when the last two-digit amount 41d of the purchase price is larger than 44 yen. Furthermore, the priority “2” is given to the change candidate 42d of 11 yen when the last two-digit amount 41d of the purchase price is 94 yen. Furthermore, the priority “3” is given to the 6 yen change candidate 42d. Furthermore, the priority “4” is given to the change candidate 42d of 1 yen. Furthermore, a priority “5” is given to the change candidate 42d corresponding to the amount obtained by subtracting the last two-digit amount 41d of the purchase amount from 100 yen. Furthermore, the priority “6” is given to the change candidate 42d corresponding to the amount obtained by subtracting the last two-digit amount 41d of the purchase amount from 50 yen.

  For example, when the purchase amount is 494 yen and the last two-digit amount 41d of the purchase amount is 94 yen, as a change candidate, 51 yen has the priority “1” and 11 yen has the priority “2”. 6 yen becomes priority “3” and 1 yen becomes priority “4”.

Further, “0” is assigned to the change candidates 42d to which the priorities “1” to “6” are not assigned.
Next, the change 3rd candidate table 304e used when the 1st amount of the purchase amount is 9 yen will be described.

Each value 43e in the third change change candidate table 304e indicates the priority order of change candidates 42e including 1 yen with respect to the amount 41e of which the last one digit is 9 yen out of the last two digits of the purchase amount.
The change candidates 42e are amounts from 1 to 96 yen, and in this example, are 1 yen, 6 yen, 11 yen, and 51 yen. All of these are amounts that can be paid within two coins, and since the number of coins is small, they are considered as change candidates. Other amounts are excluded from change candidates because there are three or more coins.

  In this example, the priority “1” is given to the change candidate 42e of 51 yen when the last two-digit amount 41e of the purchase price is larger than 49 yen and smaller than 99 yen. Furthermore, the priority “2” is given to the 1-yen change candidate 42e. Furthermore, a priority “3” is given to the change candidate 42e corresponding to the amount obtained by subtracting the last two-digit amount 41e of the purchase amount from 100 yen. Furthermore, a priority “4” is given to the change candidate 42e corresponding to the amount obtained by subtracting the last two-digit amount 41e of the purchase amount from 50 yen.

  For example, when the purchase amount is 489 yen and the last two-digit amount 41e of the purchase amount is 89 yen, as a change candidate, 51 yen becomes priority “1” and 1 yen becomes priority “2”. 11 yen is the priority “3”.

Further, “0” is assigned to the change candidates 42e to which the priorities “1” to “6” are not assigned.
Next, details of the priority order change change candidate storage unit 306 will be described.

FIG. 12 is a diagram showing an example of priority order change candidate storage means according to the second embodiment.
The priority order change candidate storage means 306 has a plurality of storage areas (0) to (25) in which change candidates are stored. The storage areas (0) to (25) are arranged in descending order of priority. That is, the priority of the change candidate stored in the first storage area (0) is the highest, and the priority of the change candidate stored in the last storage area (25) is the lowest.

  Further, the priority order change candidate storage means 306 includes a change first candidate area 306a, a change second candidate area 306b, and a change third candidate area 306c, each including a plurality of continuous storage areas. The change first candidate area 306a is positioned first, the change second candidate area 306b is positioned next, and the change third candidate area 306c is positioned next.

The change candidates stored in the storage areas (0) to (25) are sequentially read from the storage area (0).
Next, details of the priority order deposit amount candidate storage means 308 will be described.

FIG. 13 is a diagram showing an example of priority order deposit amount candidate storage means according to the second embodiment.
The priority order deposit amount candidate storage means 308 has a plurality of storage areas (0) to (25) in which deposit amount candidates are stored. The storage areas (0) to (25) are arranged in descending order of priority. That is, the priority of the deposit amount candidate stored in the first storage area (0) is the highest, and the priority of the deposit amount candidate stored in the last storage area (25) is the lowest.

  Furthermore, the priority order deposit amount candidate storage means 308 includes a deposit amount first candidate region 308a, a deposit amount second candidate region 308b, and a deposit amount third candidate region 308c, each including a plurality of consecutive storage areas. Have. The deposit amount first candidate area 308a is positioned first, the deposit amount second candidate area 308b is positioned next, and the deposit amount third candidate area 308c is positioned next.

The deposit amount candidates stored in the storage areas (0) to (25) are sequentially read from the storage area (0).
Next, the processing procedure of the POS terminal 100 will be described.

14 to 20 are flowcharts illustrating an example of a processing procedure of the POS terminal according to the second embodiment. First, it demonstrates using FIG.
The following processing is started when the purchase price of the product is input to the purchase price input means 201.

[Step S101] The total price calculation unit 202 acquires the purchase price of the product from the purchase price input unit 201.
[Step S102] The total amount calculation means 202 totals the purchase amount acquired in step S101.

  [Step S103] It is determined whether the total amount calculation means 202 has acquired the purchase amounts of all the products. When the total amount calculation unit 202 acquires the purchase amount of all the products, the total amount calculation unit 202 advances the process to step S104. If the total price calculation unit 202 has not acquired the purchase price of all the products, the total price calculation unit 202 advances the processing to step S101.

[Step S104] The total amount calculation unit 202 displays the total of the purchase amount calculated in step S102 on the screen of the display unit 204.
[Step S105] The change first candidate extraction unit 301 refers to the change first candidate table 302a stored in the change first candidate storage unit 302, and determines the priority order based on the total purchase amount calculated in step S102. Extract change candidates of high 100 yen unit. Furthermore, the change first candidate extraction unit 301 stores the extracted change candidates in units of 100 yen in the storage areas (0) and (1) of the change first candidate region 306a of the priority order change candidate storage unit 306.

  [Step S106] The change third candidate extraction unit 303 refers to the change third candidate tables 304a to 304e stored in the change third candidate storage unit 304, and based on the total purchase amount calculated in step S102, priority is given. A change candidate including 10 yen unit, 5 yen unit, and 1 yen having a high rank is extracted. Furthermore, the change candidate including the change 10 candidate unit extracted by the third change candidate extraction unit 303 includes the change candidate including the 10 yen unit, the 5-yen unit, and 1 yen in the storage area ( 14) to (25).

  [Step S107] The change change candidate extraction unit 305 extracts all change candidates stored in the change change candidate region 306c from the priority order change change candidate storage unit 306. Further, the change second candidate extraction unit 305 calculates a value obtained by adding 500 yen to each of the extracted change candidates. If the calculated value is 1000 yen or more, the calculated value is used as a change candidate. The change is stored in the storage areas (2) to (13) of the change second candidate area 306b of the priority order change change storage means 306.

  [Step S108] The deposit amount candidate calculation unit 307 calculates deposit amount candidates based on each of all the change candidates stored in the storage areas (0) to (25) of the priority order change candidate storage unit 306. . Further, the deposit amount candidate calculation unit 307 stores the calculated deposit amount candidate in the priority order deposit amount candidate storage unit 308.

  Here, the deposit amount candidate calculation means 307 displays the calculated deposit amount candidates in the order of priority according to the arrangement order in the priority order change candidate storage means 306 of the storage area in which the change candidate that is the calculation source is stored. Stored in storage areas (0) to (25) of deposit amount candidate storage means 308. For example, the deposit amount candidate corresponding to the change candidate stored in the storage area (0) of the priority order change candidate storage means 306 is stored in the storage area (0) of the priority order deposit amount candidate storage means 308.

When “0” is stored in the storage area of the priority order change candidate storage means 306, “0” is stored in the corresponding storage area of the priority order deposit amount candidate storage means 308.
[Step S109] The deposit amount candidate output unit 309 displays the deposit amount candidates stored in the priority order deposit amount candidate storage unit 308 in accordance with the arrangement order in the priority order deposit amount candidate storage unit 308. To display.

The deposit amount candidate output unit 309 ignores “0” stored in the storage area of the deposit amount candidate storage unit 308 in order of priority.
[Step S110] The change calculation unit 206 calculates a change by subtracting the total purchase amount calculated by the total amount calculation unit 202 from the deposit amount input to the deposit amount input unit 205, and ends the processing.

Next, the details of step S105 for extracting and storing the first change change candidate will be described with reference to FIG.
[Step S151] The change first candidate extraction unit 301 extracts an amount in units of 100 yen in the total purchase amount calculated in Step S102. The amount in units of 100 yen in the purchase amount is obtained by multiplying 100 to the 100th of the total purchase amount.

[Step S152] The change first candidate extraction unit 301 refers to the change first candidate table 302a stored in the change first candidate storage unit 302.
[Step S153] The change first candidate extraction unit 301 refers to the change first candidate table 302a to determine whether there is a change candidate 22a with the priority “1” corresponding to the amount 21a of 100 yen unit extracted in step S151. judge. If there is a change candidate 22a with the priority “1”, the change first candidate extraction unit 301 advances the process to step S154. If there is no change candidate 22a with the priority “1”, the change first candidate extraction unit 301 advances the process to step S155.

  [Step S154] The change first candidate extraction unit 301 stores the change candidate 22a having the priority “1” determined in step S153 in the storage area (0) of the priority order change candidate storage unit 306.

  [Step S155] The change first candidate extraction unit 301 refers to the change first candidate table 302a to determine whether or not there is a change candidate 22a of priority “2” corresponding to the amount 21a of 100 yen unit extracted in step S151. judge. If there is a change candidate 22a with the priority “2”, the change first candidate extraction unit 301 advances the process to step S156. If there is no change candidate 22a with the priority “2”, the change first candidate extraction unit 301 ends the process.

  [Step S156] The change first candidate extraction unit 301 stores the change candidate 22a having the priority “2” determined in step S155 in the storage area (1) of the priority change change candidate storage unit 306 and ends the process. To do.

Next, details of step S106 for extracting and storing the third change change candidate will be described with reference to FIG.
[Step S201] The change third candidate extraction unit 303 refers to the change third candidate table 304a stored in the change third candidate storage unit 304, and determines the priority based on the total of the purchase amounts calculated in step S102. Extract change candidates in increments of 10 yen. Further, the change third candidate extraction unit 303 stores the extracted change candidate in units of 10 yen in the change third candidate area 306c of the priority order change change candidate storage unit 306.

  [Step S202] The change third candidate extraction unit 303 refers to the change third candidate table 304b or 304c stored in the change third candidate storage unit 304, and based on the total purchase amount calculated in step S102. Then, change candidates of 5 yen units with high priority are extracted. Further, the change third candidate extraction unit 303 stores the extracted change candidate in units of 5 yen in the change third candidate area 306 c of the priority order change change candidate storage unit 306.

  [Step S203] The change third candidate extraction unit 303 refers to the change third candidate table 304d or 304e stored in the change third candidate storage unit 304, and based on the total purchase amount calculated in step S102. Then, change candidates including 1 yen having a high priority are extracted. Further, the change third candidate extraction unit 303 stores the change candidate including the extracted 1 yen in the change third candidate area 306 c of the priority order change candidate storage unit 306.

Next, details of step S201 for extracting and storing the change candidate in units of 10 yen will be described with reference to FIG.
[Step S251] The change third candidate extraction unit 303 extracts the amount in units of 10 yen in the total purchase amount calculated in Step S102. The amount of 10 yen unit in the purchase amount is obtained by multiplying the tenth of the total purchase amount by 10.

[Step S252] The change third candidate extraction unit 303 refers to the change third candidate table 304a stored in the change third candidate storage unit 304.
[Step S253] The change candidate extraction means 303 refers to the change third candidate table 304a to determine whether there is a change candidate 42a of priority “1” corresponding to the amount 41a of 10 yen unit extracted in step S251. judge. If there is a change candidate 42a with the priority “1”, the third change candidate extraction unit 303 advances the process to step S254. If there is no change candidate 42a having the priority “1”, the third change candidate extraction unit 303 advances the process to step S255.

  [Step S254] The third change candidate extraction unit 303 stores the change candidates 42a having the priority “1” determined in step S253 in the storage area (14) of the priority order change candidate storage unit 306.

  [Step S255] The change third candidate extraction unit 303 refers to the change third candidate table 304a to determine whether or not there is a change candidate 42a of priority “2” corresponding to the amount of money 41a in 10 yen unit extracted in step S251. judge. If there is a change candidate 42a with the priority “2”, the third change candidate extraction unit 303 advances the process to step S256. If there is no change candidate 42a with the priority “2”, the third change candidate extraction unit 303 ends the process.

  [Step S256] The change third candidate extraction unit 303 stores the change candidate 42a having the priority “2” determined in step S255 in the storage area (15) of the priority change change candidate storage unit 306, and ends the process. To do.

Next, details of step S202 for extracting and storing change candidates in units of 5 yen will be described with reference to FIG.
[Step S301] The third change candidate extraction unit 303 extracts the last two digits of the total purchase amount calculated in Step S102.

  [Step S302] The third change candidate extraction unit 303 determines whether the last one digit of the last two digits extracted in step S301 is “5” or more. If the last digit is “5” or more, the third change candidate extraction unit 303 advances the process to step S303. The change third candidate extraction unit 303 ends the process when the last digit is not “5” or more.

  [Step S303] The third change candidate extraction unit 303 determines whether the last one digit of the last two digits extracted in step S301 is “5”. If the last digit is “5”, the third change candidate extraction unit 303 advances the process to step S304. If the last digit is not “5”, the third change candidate extraction unit 303 advances the process to step S305.

[Step S304] The change third candidate extraction unit 303 refers to the change third candidate table 304b stored in the change third candidate storage unit 304.
[Step S305] The third change candidate extraction unit 303 refers to the third change candidate table 304c stored in the third change candidate storage unit 304.

  [Step S306] The change change candidate extraction unit 303 refers to the change change candidate table 304b or 304c, and changes of priority “1” corresponding to the lower two-digit amounts 41b and 41c extracted in step S301. It is determined whether there are candidates 42b and 42c. If there are change candidates 42b and 42c with the priority “1”, the third change candidate extraction unit 303 advances the process to step S307. If there is no change candidate 42b, 42c with the priority “1”, the third change candidate extraction unit 303 advances the process to step S308.

  [Step S307] The change change candidate extraction unit 303 stores the change candidates 42b and 42c of the priority “1” determined in step S306 in the storage area (16) of the priority change change candidate storage unit 306.

  [Step S308] The change change candidate extraction unit 303 refers to the change change candidate table 304b or 304c, and changes of priority “2” corresponding to the lower two-digit amounts 41b and 41c extracted in step S301. It is determined whether there are candidates 42b and 42c. If there are change candidates 42b and 42c with the priority “2”, the third change candidate extraction unit 303 advances the process to step S309. If there are no change candidates 42b and 42c with the priority “2”, the third change candidate extraction unit 303 advances the process to step S310.

  [Step S309] The change change candidate extraction unit 303 stores the change candidates 42b and 42c of the priority “2” determined in step S308 in the storage area (17) of the priority change change candidate storage unit 306.

  [Step S310] The change third candidate extraction unit 303 refers to the change third candidate table 304b or 304c and changes the priority “3” corresponding to the lower two-digit amounts 41b and 41c extracted in step S301. It is determined whether there are candidates 42b and 42c. If there are change candidates 42b and 42c with the priority “3”, the third change candidate extraction unit 303 advances the process to step S311. If there are no change candidates 42b and 42c with the priority “3”, the third change candidate extraction unit 303 advances the process to step S312.

  [Step S311] The change third candidate extraction unit 303 stores the change candidates 42b and 42c of the priority “3” determined in step S310 in the storage area (18) of the priority order change candidate storage unit 306.

  [Step S312] The change third candidate extraction unit 303 refers to the change third candidate table 304b or 304c and changes the priority “4” corresponding to the lower two-digit amounts 41b and 41c extracted in step S301. It is determined whether there are candidates 42b and 42c. If there are change candidates 42b and 42c with the priority “4”, the third change candidate extraction unit 303 advances the process to step S313. If there is no change candidate 42b, 42c with the priority “4”, the third change candidate extraction unit 303 ends the process.

  [Step S313] The third change candidate extraction unit 303 stores the change candidates 42b and 42c having the priority “4” determined in step S312 in the storage area (19) of the priority change candidate storage unit 306 for processing. Exit.

Next, details of step S203 for extracting and storing change candidates including one yen will be described with reference to FIG.
[Step S351] The change third candidate extraction unit 303 extracts the last two digits of the total purchase amount calculated in Step S102.

  [Step S352] The third change candidate extraction unit 303 determines whether the last one digit of the last two digits extracted in step S351 is “4”. If the last digit is “4”, the third change candidate extraction unit 303 advances the process to step S354. If the last digit is not “4”, the third change candidate extraction unit 303 advances the process to step S353.

  [Step S353] The third change candidate extraction unit 303 determines whether the last one digit of the last two digits extracted in Step S351 is “9”. If the last digit is “9”, the third change candidate extraction unit 303 advances the process to step S355. If the last digit is not “9”, the third change candidate extraction unit 303 ends the process.

[Step S354] The third change candidate extraction unit 303 refers to the third change candidate table 304d stored in the third change candidate storage unit 304.
[Step S355] The third change candidate extraction unit 303 refers to the third change candidate table 304e stored in the third change candidate storage unit 304.

  [Step S356] The change change candidate extraction unit 303 refers to the change change 3 candidate table 304d or 304e, and changes of priority “1” corresponding to the lower two-digit amounts 41d and 41e extracted in step S351. It is determined whether there are candidates 42d and 42e. If there are change candidates 42d and 42e with the priority “1”, the third change candidate extraction unit 303 advances the process to step S357. If there is no change candidate 42d, 42e with the priority “1”, the third change candidate extraction unit 303 advances the process to step S358.

  [Step S357] The change change third candidate extraction unit 303 stores the change candidates 42d and 42e having the priority “1” determined in step S356 in the storage area (20) of the priority change change candidate storage unit 306.

  [Step S358] The change change candidate extraction unit 303 refers to the change change candidate table 304d or 304e, and changes of priority “2” corresponding to the lower two-digit amounts 41d and 41e extracted in step S351. It is determined whether there are candidates 42d and 42e. If there are change candidates 42d and 42e with the priority “2”, the third change candidate extraction unit 303 advances the process to step S359. If there are no change candidates 42d and 42e with the priority “2”, the third change candidate extraction unit 303 advances the process to step S360.

  [Step S359] The change candidate third extracting unit 303 stores the change candidates 42d and 42e having the priority “2” determined in step S358 in the storage area (21) of the priority change candidate storage unit 306.

  [Step S360] The change third candidate extraction unit 303 refers to the change third candidate table 304d or 304e and changes the priority “3” corresponding to the lower two-digit amounts 41d and 41e extracted in step S351. It is determined whether there are candidates 42d and 42e. If there are change candidates 42d and 42e with the priority “3”, the third change candidate extraction unit 303 advances the process to step S361. If there is no change candidate 42d, 42e with the priority “3”, the third change candidate extraction unit 303 advances the process to step S362.

  [Step S361] The change change candidate extraction unit 303 stores the change candidates 42d and 42e having the priority “3” determined in step S360 in the storage area (22) of the change order candidate storage unit 306 in order of priority.

  [Step S362] The change third candidate extraction unit 303 refers to the change third candidate table 304d or 304e and changes the priority “4” corresponding to the lower two-digit amounts 41d and 41e extracted in step S351. It is determined whether there are candidates 42d and 42e. If there are change candidates 42d and 42e with the priority “4”, the third change candidate extraction unit 303 advances the process to step S363. If there is no change candidate 42d, 42e with the priority “4”, the third change candidate extraction unit 303 advances the process to step S364.

  [Step S363] The change change candidate extraction unit 303 stores the change candidates 42d and 42e having the priority “4” determined in step S362 in the storage area (23) of the change order candidate storage unit 306 in order of priority.

  [Step S364] The change third candidate extraction means 303 refers to the change third candidate table 304d or 304e and changes the priority “5” corresponding to the lower two-digit amounts 41d and 41e extracted in step S351. It is determined whether there are candidates 42d and 42e. If there are change candidates 42d and 42e with the priority “5”, the third change candidate extraction unit 303 advances the process to step S365. If there is no change candidate 42d, 42e with the priority “5”, the third change candidate extraction unit 303 advances the process to step S366.

  [Step S365] The third change candidate extraction unit 303 stores the change candidates 42d and 42e having the priority “5” determined in step S364 in the storage area (24) of the priority order change candidate storage unit 306.

  [Step S366] The change third candidate extraction unit 303 refers to the change third candidate table 304d or 304e and changes the priority “6” corresponding to the lower two-digit amounts 41d and 41e extracted in step S351. It is determined whether there are candidates 42d and 42e. If there are change candidates 42d and 42e with the priority “6”, the third change candidate extraction unit 303 advances the process to step S367. If there is no change candidate 42d, 42e with the priority “6”, the third change candidate extraction unit 303 ends the process.

  [Step S367] The change change candidate extraction unit 303 stores the change candidates 42d and 42e having the priority “6” determined in step S366 in the storage area (25) of the priority change change candidate storage unit 306 for processing. Exit.

Next, details of step S107 for extracting and storing the second change change candidate will be described with reference to FIG.
[Step S401] The second change candidate extraction unit 305 extracts the change candidates stored in the storage areas (14) to (25) of the priority order change candidate storage unit 306. Further, the change second candidate extraction unit 305 stores the amount obtained by adding 500 yen to each of the extracted change candidates as a change candidate in the storage areas (2) to (13) of the priority order change candidate storage unit 306. To do.

  Here, the change second candidate extraction means 305 is configured so that the order in the storage areas (2) to (13) as the storage destination is the same as the order in the storage areas (14) to (25) as the extraction sources. The calculated change candidate is stored. For example, change candidates whose extraction source is the storage area (14) are stored in the storage area (2), and change candidates whose extraction source is the storage area (15) are stored in the storage area (3).

[Step S402] The change second candidate extraction unit 305 sets the storage area (2) of the priority change change candidate storage unit 306 in the storage position (A).
[Step S403] The second change extraction unit 305 determines whether the change candidate amount stored in the storage position (A) is 1000 yen or more. If the amount is 1000 yen or more, the change second candidate extraction unit 305 advances the process to step S405. If the amount is not 1000 yen or more, the change second candidate extraction unit 305 advances the process to step S404.

[Step S404] The change second candidate extraction unit 305 stores “0” in the storage position (A).
[Step S405] The second change candidate extraction unit 305 determines whether the storage position (A) is the storage area (13). When the storage position (A) is the storage area (13), the change second candidate extraction unit 305 ends the process. If the storage position (A) is not the storage area (13), the change second candidate extraction unit 305 advances the process to step S406.

[Step S406] The change second candidate extraction unit 305 sets and updates the storage position (A) in the next storage area, and advances the process to step S403.
Next, an example of the screen 204a of the display unit 204 on which deposit amount candidates are displayed will be described.

FIG. 21 is a diagram illustrating an example of the screen of the display unit according to the second embodiment.
The display unit 204 is realized by, for example, the display 112a and the touch panel 112c illustrated in FIG. On the screen 204 a of the display means 204, the total purchase price is displayed as the purchase price 31. Further, on the screen 204a, deposit amount candidates are displayed in the recommended deposit amount 32. Here, the deposit amount candidates are displayed in order so that the one with higher priority is positioned higher. Further, the change corresponding to the deposit amount candidate is displayed on the change screen 33 on the screen 204a.

  Furthermore, on the screen 204a, for example, a touch panel type button 34 for rearranging the order of deposit amount candidates displayed in the recommended deposit amount 32 in the order of the number of coins is displayed. When the customer touches the button 34, for example, the deposit amount candidate output means 309 detects this, and the deposit amount displayed in the recommended deposit amount 32 by changing the order of deposit amount candidate output in the order of the number of coins. Candidates are sorted.

  Further, on the screen 204a, for example, a touch panel type button 35 for rearranging the order of the deposit amount candidates displayed in the recommended deposit amount 32 from the highest change to the descending order is displayed. When the customer touches the button 35, for example, the deposit amount candidate output means 309 detects this, and the recommended deposit amount 32 is changed by changing the output order of the deposit amount candidates in descending order from the highest change. The deposit amount candidates displayed in are rearranged.

  Furthermore, on the screen 204a, for example, a touch panel type button 36 for returning the order of deposit amount candidates displayed in the recommended deposit amount 32 is displayed. When the customer touches the button 36, for example, the deposit amount candidate output means 309 detects this, and returns the order of the deposit amount candidate output, so that the deposit amount candidate displayed in the recommended deposit amount 32 is displayed. The original order is used.

  As described above, in the POS terminal 100, the deposit amount candidate extraction unit 203 converts the deposit amount candidate that does not include 1 yen coin or 5 yen coin into the change such that the change is in units of 100 yen, The priority is set higher than the deposit amount candidates including coins and 5-yen coins, and the deposit amount candidates are displayed on the display means 204 based on the priorities.

As a result, it is possible to present to the customer a deposit amount candidate that does not include a 1-yen coin or a 5-yen coin in the change with a higher priority.
That is, it becomes possible to present a payment amount that reduces the possibility that change will accumulate in containers such as a customer's wallet.

  Further, in the POS terminal 100, the deposit amount candidate storage unit 308 has a plurality of storage areas, and the deposit amount candidates calculated by the deposit amount candidate calculation unit 307 are stored in the corresponding storage areas based on the priority order. . Then, the deposit amount candidates stored in each storage area are displayed on the display unit 204 based on the order set in the storage area.

  According to this, when changing the priority order of denominations included in change, it is possible to change the priority order only by changing the position of the storage area for storing deposit amount candidates, without performing complicated processing. It is possible to reflect the order of deposit amount candidates displayed on the display unit 204.

  Next, an embodiment using another method for extracting and storing the first and third candidates for change will be described as a third embodiment. In the third embodiment, the scale of a table to be used is reduced, and change candidates are extracted and stored mainly in calculation.

[Third Embodiment]
In the POS terminal according to the third embodiment, the change stored in the POS terminal 100 according to the second embodiment is stored in the tables stored in the first change and third candidate storage means 302 and 304, and the change first, The processing procedures relating to the extraction and storage of change first and third candidates in the third candidate extraction means 301 and 303 are different. The other configuration is the same as that of the POS terminal 100.

First, the change first and third candidate tables stored in the change first and third candidate storage means 302 and 304 will be described.
FIG. 22 is a diagram illustrating an example of a change first candidate table and a change third candidate table according to the third embodiment.

As shown in FIG. 22A, the change first candidate table 302b stores 100 yen, 200 yen, 500 yen, and 600 yen as change candidates in units of 100 yen.
As shown in FIG. 22 (B), the change third candidate table 304f includes 10 yen change candidates, 5 yen change candidates, and change candidates including 1 yen, 1 yen, 5 yen, 6 Yen, 10 yen, 11 yen, 15 yen, 20 yen, 50 yen, 51 yen, 55 yen, and 60 yen are stored.

Next, the procedure for extracting and storing the first change change will be described.
FIG. 23 is a flowchart illustrating an example of a processing procedure of the POS terminal according to the third embodiment.

[Step S451] The change first candidate extraction unit 301 extracts the 100th place of the total purchase amount, multiplies the extracted value by 100, and stores it in the variable (A).
[Step S452] The change first candidate extraction unit 301 calculates a value obtained by subtracting the variable (A) from 1000 and stores it in the variable (B).

  [Step S453] The change first candidate extraction unit 301 determines whether the variable (B) corresponds to the value of the change first candidate in the change first candidate table 302b stored in the change first candidate storage unit 302. . If the variable (B) corresponds to the value of the first change candidate, the change first candidate extraction unit 301 advances the process to step S454. If the variable (B) does not correspond to the value of the first change candidate, the change first candidate extraction unit 301 advances the process to step S455.

[Step S454] The change first candidate extraction unit 301 stores the variable (B) in the storage area (0) of the priority order change change candidate storage unit 306.
[Step S455] The change first candidate extraction unit 301 determines whether the variable (A) is less than 500. If the variable (A) is less than 500, the change first candidate extraction unit 301 advances the process to step S456. If the variable (A) is not less than 500, the change first candidate extraction unit 301 ends the process.

[Step S456] The change first candidate extraction unit 301 calculates a value obtained by subtracting the variable (A) from 500, and stores it in the variable (C).
[Step S457] The change first candidate extraction unit 301 determines whether the variable (C) corresponds to the value of the change first candidate in the change first candidate table 302b stored in the change first candidate storage unit 302. . If the variable (C) corresponds to the value of the first change candidate, the change first candidate extraction unit 301 advances the process to step S458. The change first candidate extraction unit 301 ends the process when the variable (C) does not correspond to the value of the change first candidate.

[Step S458] The change first candidate extraction means 301 stores the variable (C) in the storage area (1) of the priority order change change candidate storage means 306, and ends the process.
Next, a procedure for extracting and storing the third change change candidate will be described. As shown in FIG. 16, the procedure for extracting and storing the third change change is as follows. As shown in FIG. 16, the change candidate is extracted and stored in units of 10 yen, and the change candidate is extracted in units of 5 yen. This includes storing and extracting and storing change candidates including one yen.

24 to 26 are flowcharts illustrating an example of a processing procedure of the POS terminal according to the third embodiment.
First, procedures for extracting and storing change candidates in units of 10 yen will be described with reference to FIG.

[Step S501] The change change third candidate extraction unit 303 extracts the tenth place of the total purchase amount, multiplies the extracted value by 10, and stores it in the variable (A).
[Step S502] The third change candidate extraction unit 303 calculates a value obtained by subtracting the variable (A) from 100 and stores the value in the variable (B).

  [Step S503] The third change candidate extraction unit 303 determines whether the variable (B) corresponds to the value of the third change candidate in the change first candidate table 304f stored in the third change candidate storage unit 304. . If the variable (B) corresponds to the value of the third change candidate, the third change candidate extraction unit 303 advances the process to step S504. If the variable (B) does not correspond to the value of the third change candidate, the third change candidate extraction unit 303 advances the process to step S505.

[Step S504] The third change candidate extraction unit 303 stores the variable (B) in the storage area (15) of the priority change change candidate storage unit 306.
[Step S505] The third change candidate extraction unit 303 determines whether the variable (A) is 50 or not. If the variable (A) is 50, the third change candidate extraction unit 303 ends the process. If the variable (A) is not 50, the third change candidate extraction unit 303 advances the process to step S506.

  [Step S506] The third change candidate extraction unit 303 determines whether the variable (A) is less than 50. If the variable (A) is less than 50, the third change candidate extraction unit 303 advances the process to step S508. If the variable (A) is not less than 50, the third change candidate extraction unit 303 advances the process to step S507.

[Step S507] The third change candidate extraction unit 303 stores “50” in the storage area (14) of the priority order change candidate storage unit 306 and ends the process.
[Step S508] The third change candidate extraction unit 303 calculates a value obtained by subtracting the variable (A) from 50 and stores it in the variable (C).

  [Step S509] The third change candidate extraction unit 303 determines whether the variable (C) corresponds to the value of the third change candidate in the change third candidate table 304f stored in the third change candidate storage unit 304. . If the variable (C) corresponds to the value of the third change candidate, the third change candidate extraction unit 303 advances the process to step S510. The change third candidate extraction unit 303 ends the process when the variable (C) does not correspond to the value of the change third candidate.

[Step S510] The third change candidate extraction unit 303 stores the variable (C) in the storage area (14) of the priority change change candidate storage unit 306, and ends the process.
Next, procedures for extracting and storing change candidates in units of 5 yen will be described with reference to FIG.

  [Step S551] The third change candidate extraction unit 303 determines whether the 1's place of the total purchase price is 5 or more. The change 3rd candidate extraction means 303 advances a process to step S552, when the one of the sum total of the purchase amount is 5 or more. The change third candidate extraction unit 303 ends the process when the 1's place of the total purchase amount is not 5 or more.

[Step S552] The third change extraction unit 303 for change changes stores “5” in the storage area (17) of the change candidate storage unit 306 in order of priority.
[Step S553] The third change candidate extraction unit 303 extracts the last two digits of the total purchase amount, and stores the extracted value in the variable (A).

  [Step S554] The third change candidate extraction unit 303 determines whether the value obtained by adding 55 to the variable (A) is greater than 100 and less than 150. If the value obtained by adding 55 to the variable (A) is less than 150 and less than 150, the third change candidate extracting unit 303 advances the process to step S555. If the value obtained by adding 55 to the variable (A) is not greater than 100 and less than 150, the third change candidate extraction unit 303 advances the process to step S556.

[Step S555] The third change candidate extracting unit 303 stores “55” in the storage area (16) of the priority order change candidate storing unit 306.
[Step S556] The third change candidate extraction unit 303 subtracts the variable (A) from 100 to obtain the change third candidate value in the change third candidate table 304f stored in the change third candidate storage unit 304. Determine if applicable. If the value obtained by subtracting the variable (A) from 100 corresponds to the value of the third change candidate, the change third candidate extraction unit 303 advances the process to step S557. If the value obtained by subtracting the variable (A) from 100 does not correspond to the value of the third change candidate, the change third candidate extraction unit 303 advances the process to step S558.

  [Step S557] The change change candidate extraction unit 303 stores the change change value determined to correspond to the change change candidate value in step S556 in the storage area (18) of the priority order change change candidate storage unit 306.

  [Step S558] The value obtained by subtracting the variable (A) from 50 by the change third candidate extraction unit 303 becomes the value of the change third candidate in the change third candidate table 304f stored in the change third candidate storage unit 304. Determine if applicable. If the value obtained by subtracting the variable (A) from 50 corresponds to the value of the third change candidate, the change third candidate extraction unit 303 advances the process to step S559. If the value obtained by subtracting the variable (A) from 50 does not correspond to the value of the third change candidate, the change third candidate extraction unit 303 ends the process.

  [Step S559] The change candidate extraction unit 303 stores the change candidate value determined to correspond to the change third candidate value in step S558 in the storage area (19) of the priority order change candidate storage unit 306 for processing. Exit.

Next, a procedure for extracting and storing change candidates including one yen will be described with reference to FIG.
[Step S601] The third change candidate extraction unit 303 determines whether the 1's place of the total purchase amount is 4. The change 3rd candidate extraction means 303 advances a process to step S602, when the 1's place of the total of the purchase amount is 4. The change third candidate extraction unit 303 advances the process to step S612 when the 1's place of the total purchase amount is not 4.

  [Step S <b> 602] The change third candidate extraction unit 303 stores “6” in the storage area (22) of the priority change change candidate storage unit 306. Furthermore, the change third candidate extraction unit 303 stores “1” in the storage area (23) of the priority order change candidate storage unit 306.

[Step S603] The third change candidate extraction unit 303 extracts the last two digits of the total purchase price, and stores the extracted value in the variable (A).
[Step S604] The third change candidate extraction unit 303 determines whether the value obtained by adding 51 to the variable (A) is greater than 100. If the value obtained by adding 51 to the variable (A) is greater than 100, the third change candidate extracting unit 303 advances the process to step S605. If the value obtained by adding 51 to the variable (A) is not more than 100, the third change candidate extracting unit 303 advances the process to step S606.

[Step S605] The third change candidate extraction unit 303 stores “51” in the storage area (20) of the priority change change candidate storage unit 306.
[Step S606] The third change candidate extraction unit 303 determines whether the value obtained by adding 11 to the variable (A) is greater than 100. If the value obtained by adding 11 to the variable (A) is greater than 100, the third change candidate extracting unit 303 advances the process to step S607. If the value obtained by adding 11 to the variable (A) is not greater than 100, the third change candidate extracting unit 303 advances the process to step S608.

[Step S <b> 607] The third change candidate extraction unit 303 stores “11” in the storage area (21) of the priority change change candidate storage unit 306.
[Step S608] The change third candidate extraction unit 303 subtracts the variable (A) from 100 to the change third candidate value in the change third candidate table 304f stored in the change third candidate storage unit 304. Determine if applicable. If the value obtained by subtracting the variable (A) from 100 corresponds to the value of the third change candidate, the change third candidate extraction unit 303 advances the process to step S609. If the value obtained by subtracting the variable (A) from 100 does not correspond to the value of the change third candidate, the change third candidate extraction unit 303 advances the process to step S610.

  [Step S609] The change change candidate extraction unit 303 stores the change change value determined to correspond to the change change candidate value in step S608 in the storage area (24) of the priority order change change candidate storage unit 306.

  [Step S610] The third change candidate extraction unit 303 subtracts the variable (A) from 50 to obtain the change third candidate value in the change third candidate table 304f stored in the change third candidate storage unit 304. Determine if applicable. If the value obtained by subtracting the variable (A) from 50 corresponds to the value of the third change candidate, the change third candidate extraction unit 303 advances the process to step S611. If the value obtained by subtracting the variable (A) from 50 does not correspond to the value of the third change candidate, the change third candidate extraction unit 303 ends the process.

  [Step S611] The change change candidate extraction unit 303 stores the change candidate value determined to correspond to the value of the change 3 candidate in step S610 in the storage area (25) of the priority change change candidate storage unit 306 for processing. Exit.

  [Step S612] The third change candidate extraction unit 303 determines whether the 1's place of the total purchase price is 9. The change third candidate extraction unit 303 advances the process to step S613 when the 1's place of the total purchase amount is 9. The change third candidate extraction unit 303 ends the process when the 1's place of the total purchase price is not 9.

[Step S613] The third change candidate extraction unit 303 stores “1” in the storage area (21) of the priority change change candidate storage unit 306.
[Step S614] The third change candidate extraction unit 303 extracts the last two digits of the total purchase amount, and stores the extracted value in the variable (A).

  [Step S615] The third change candidate extraction unit 303 determines whether the value obtained by adding 51 to the variable (A) is greater than 100 and less than 150. If the value obtained by adding 51 to the variable (A) is less than 100 and less than 150, the third change candidate extracting unit 303 advances the process to step S616. If the value obtained by adding 51 to the variable (A) is not greater than 100 and less than 150, the third change candidate extraction unit 303 advances the process to step S617.

[Step S616] The third change candidate extraction unit 303 stores “51” in the storage area (20) of the priority change change candidate storage unit 306.
[Step S617] The change third candidate extraction unit 303 subtracts the variable (A) from 100 to the change third candidate value in the change third candidate table 304f stored in the change third candidate storage unit 304. Determine if applicable. If the value obtained by subtracting the variable (A) from 100 corresponds to the value of the third change candidate, the change third candidate extraction unit 303 advances the process to step S618. If the value obtained by subtracting the variable (A) from 100 does not correspond to the value of the change third candidate, the change third candidate extraction unit 303 advances the process to step S619.

  [Step S618] The change change candidate extraction unit 303 stores the change change value determined to correspond to the change change candidate value in step S617 in the storage area (22) of the priority order change change candidate storage unit 306.

  [Step S619] The value obtained by subtracting the variable (A) from the change third candidate extraction unit 303 to 50 becomes the value of the third change candidate in the change third candidate table 304f stored in the change third candidate storage unit 304. Determine if applicable. If the value obtained by subtracting the variable (A) from 50 corresponds to the value of the third change candidate, the change third candidate extraction unit 303 advances the process to step S620. If the value obtained by subtracting the variable (A) from 50 does not correspond to the value of the third change candidate, the change third candidate extraction unit 303 ends the process.

  [Step S620] The change candidate extraction unit 303 stores the change candidate value determined to correspond to the value of the third change change in step S619 in the storage area (23) of the priority change change candidate storage unit 306 for processing. Exit.

Also in the third embodiment, as in the second embodiment, it is possible to present a deposit amount candidate that does not include a 1-yen coin or a 5-yen coin to the customer with higher priority, as in the change. Become.
That is, it becomes possible to present a payment amount that reduces the possibility that change will accumulate in containers such as a customer's wallet.

  Note that the processing described above in each embodiment can be realized by causing a computer to execute a predetermined program. In that case, a program describing the processing contents to be realized is provided. The program describing the processing contents can be recorded on a computer-readable recording medium. Examples of the computer-readable recording medium include a magnetic recording device, an optical disk, a magneto-optical recording medium, and a semiconductor memory. Examples of the magnetic recording device include a hard disk device, a flexible disk (FD), and a magnetic tape (MT). Optical discs include DVD (Digital Versatile Disc), DVD-RAM, CD-ROM (Compact Disc-Read Only Memory), CD-R (Recordable), CD-RW (ReWritable), and the like. Magneto-optical recording media include MO (Magneto-Optical disk).

  When distributing the program, for example, a portable recording medium such as a DVD or a CD-ROM in which the program is recorded is sold. It is also possible to store the program in a storage device of a server computer and transfer the program from the server computer to another computer via a network.

  The computer that executes the program stores, for example, the program recorded on the portable recording medium or the program transferred from the server computer in its own storage device. Then, the computer reads the program from its own storage device and executes processing according to the program. The computer can also read the program directly from the portable recording medium and execute processing according to the program. In addition, each time the program is transferred from the server computer, the computer can sequentially execute processing according to the received program.

DESCRIPTION OF SYMBOLS 10 Money transaction apparatus 11 Input means 12 1st change candidate extraction means 13 2nd change candidate extraction means 14 Deposit amount candidate calculation means 15 Priority order setting means 16 Output means 17 Display means

Claims (9)

Computer
The first change candidate and the first change candidate stored in the storage means are set with the priority of the first change candidate and the first change candidate in association with each value of the denomination unit not including the predetermined denomination in the purchase amount. A first change candidate extracting means for referring to the table and extracting the first change candidate corresponding to the purchase price based on the input purchase price;
A second change candidate and a second change change stored in the storage means are set in correspondence with each value of a denomination unit including a predetermined denomination in the purchase amount, and a priority order of the second change candidate and the second change candidate is set. A second change candidate extracting unit that refers to a candidate table and extracts the second change candidate corresponding to the purchase price based on the input purchase price;
Based on the first change candidate said first change candidate extracting means has extracted, calculates the first deposit amount candidates, based on the second change candidate said second change candidate extracting means has extracted , amounts candidate calculation means Luggage to de San a second deposit amount of money candidates,
The priority between the first deposit amount candidates calculated by the deposit amount candidate calculation means is set based on the priority order of the corresponding first change candidate, and between the calculated second deposit amount candidates Priority setting means for setting the priority based on the priority of the corresponding second change candidate , and further setting the first deposit amount candidate to be higher in priority than the second deposit amount candidate;
Output means for causing the display means to display the first deposit amount candidate and the second deposit amount candidate calculated by the deposit amount candidate calculation means based on the priority order set by the priority order setting means;
A currency trading program characterized by functioning as The first change candidate table is set by excluding one of the first change candidates in which the number of coins included in the first change candidate exceeds a predetermined value,
  The second change candidate table is set by excluding one of the second change candidates whose number of coins included in the second change candidate exceeds a predetermined value.
  The money transaction program according to claim 1, wherein: In the first change candidate table and the second change candidate table, the priority of the first change candidate and the priority of the second change candidate are ranked in ascending order of the number of coins included in the change. Do,
  The money transaction program according to claim 1 or 2. In the first change candidate table and the second change candidate table, the priorities of the first change candidates and the priorities of the second change candidates are ranked in descending order of the number of coins included in the deposit. I do,
  The money transaction program according to claim 1 or 2. The priority order setting means stores deposit amount candidates that do not include the predetermined denomination in change in the first storage area of the deposit amount candidate storage means having a first storage area and a second storage area. And storing the deposit amount candidate including the predetermined denomination in the change in the second storage area,
The output means causes the display means to display the deposit amount candidate stored in the first storage area so as to be positioned higher than the deposit amount candidate stored in the second storage area. The money transaction program according to any one of claims 1 to 4, characterized in that: The money transaction program according to any one of claims 1 to 5 , wherein the predetermined denomination includes a one-yen coin. The money transaction program according to any one of claims 1 to 6 , wherein the predetermined denomination includes a 5-yen coin. Computer
The first change candidate and the first change candidate stored in the storage means are set with the priority of the first change candidate and the first change candidate in association with each value of the denomination unit not including the predetermined denomination in the purchase amount. With reference to the table , based on the input purchase price, extract the first change candidate corresponding to the purchase price ,
A second change candidate and a second change change stored in the storage means are set in correspondence with each value of a denomination unit including a predetermined denomination in the purchase amount, and a priority order of the second change candidate and the second change candidate is set. With reference to the candidate table , based on the input purchase price, extract the second change candidate corresponding to the purchase price ,
Based on the extracted first change candidate, it calculates the first deposit amount candidates, based on the second change candidate issues calculate the second deposit amount candidates,
The calculated priority order between the first deposit amount candidates is set based on the priority order of the corresponding first change candidate, and the calculated priority order between the second deposit amount candidates is set. 2 based on the priority of the change change candidates , and the first deposit amount candidate is set to have a higher priority than the second deposit amount candidate,
Displaying the calculated first deposit amount candidate and the second deposit amount candidate on the display unit based on the set priority order;
A currency transaction method characterized by the above. The first change candidate and the first change candidate stored in the storage means are set with the priority of the first change candidate and the first change candidate in association with each value of the denomination unit not including the predetermined denomination in the purchase amount. A first change candidate extracting means for referring to the table and extracting the first change candidate corresponding to the purchase price based on the input purchase price;
A second change candidate and a second change change stored in the storage means are set in correspondence with each value of a denomination unit including a predetermined denomination in the purchase amount, and a priority order of the second change candidate and the second change candidate is set. A second change candidate extracting means for referring to a candidate table and extracting the second change candidate corresponding to the purchase price based on the input purchase price;
Based on the first change candidate said first change candidate extracting means has extracted, calculates the first deposit amount candidates, based on the second change candidate said second change candidate extracting means has extracted , and the amount of money a candidate calculation means Luggage to de San a second deposit amount of money candidates,
The priority between the first deposit amount candidates calculated by the deposit amount candidate calculation means is set based on the priority order of the corresponding first change candidate, and between the calculated second deposit amount candidates Priority order setting means for setting a priority order based on the priority order of the corresponding second change candidate, and for setting the first deposit amount candidate higher than the second deposit amount candidate When,
Output means for causing the display means to display the first deposit amount candidate and the second deposit amount candidate calculated by the deposit amount candidate calculation unit based on the priority set by the priority order setting unit;
A currency transaction apparatus comprising:

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