JPH0798787A - Merchandise sales data processor - Google Patents

Abstract

PURPOSE:To reduce the burden of an accounting work by a casher by unnecessitating the calculation of the deposit and the input work as well as the paying of the change. CONSTITUTION:Coin housing parts 23 and 27, coin insertion/exhaust ports 10 and 9, coin selection parts 22 and 26 are provided. The inserted total amount is obtained from the type of the coin inserted from the coin insertion port during one transaction and the number of the coin and is stored in a deposit memory M2. The contents of sales amount memory M1 and the contents of the deposit amount memory M2 are compared and when the contents of the memory 1 is larger than that of the memory 2, the difference is reported to a customer as a shortage. As the result of the comparison after the registered key makes the input, if the contents of the memory 1 is smaller than that of the memory 2, the difference is reported to the customer as a change and the coin corresponding to the change is automatically exhausted from a coin exhaust port.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a product sales data processing device used for an electronic cash register, a terminal of a POS (point of sale information management) system, or the like.

[0002]

2. Description of the Related Art Multiple POSs for registering product sales data
A higher-level host device is connected to the terminal via a transmission path, and each POS terminal is centrally managed by this host device.
OS systems are widely used in mass retailers such as supermarkets.

Conventionally, the merchandise sales registration work using such a POS terminal has been performed as follows. That is, when a clerk who operates a POS terminal, a so-called cashier, inputs a code of a product purchased by a customer using an input device such as a barcode scanner or a keyboard, product data (product name, unit price, etc.) corresponding to the product code is obtained. It is read from the product data file. Then, based on this product data, product sales data such as the number of sales and the sales amount are obtained and registered for sales, and the sales amount is added to the contents of the total amount memory. Further, the detailed data (the product name, the unit price, the number of sales, the sales amount, etc.) of the sales-registered product are displayed on the display unit and printed on the receipt paper by the printer. The total amount of memory is 1
It is designed to be cleared in response to the customer's first product registration.

In this way, when the sales registration of all the products purchased by one customer is completed, the total price of all the products purchased by the customer is stored in the total price memory. Further, since the total amount is displayed on the display, the customer pays the price commensurate with the total amount.

Here, when the customer pays the price in cash, the cashier operates the number input key on the keyboard to input the deposit amount from the customer, and then operates the registration closing key. And declares the end of registration for one transaction. Then, the change calculation for subtracting the total amount from the deposit amount is performed, the calculated change amount is displayed on the display, and the receipt is issued. In addition, the cash drawer for storing cash by denomination is automatically opened, so the cashier stores the currencies received from customers by denomination and stores the currency equivalent to the change amount from the drawer. Give it to the customer along with the receipt.

If the deposit amount is less than the total amount, the operation input of the registration closing key becomes an error, and the number of deposit amount and the operation of the registration closing key are redone.

At this point, the cashier completes the accounting work including the transfer of money, and finishes the product sales registration work with the customer.

By the way, there is an automatic change dispenser as a device for improving the work efficiency of the accounting work in the product sales registration work. This automatic change dispenser automatically dispenses coins corresponding to the change amount according to a command from a connected POS terminal (electronic cash register), and automatically sorts and stores coins received from customers. It can be recycled as change.

By using the automatic change dispenser in this manner, the work of collecting change coins and paying the customer is eliminated, so that a part of the cashier's burden in the accounting work can be reduced.

[0010]

However, when using the above automatic change dispenser, the cashier needs to count the currencies received from the customer to calculate the deposit amount and input the number of deposits. Mistakes in the amount of money and erroneous input operations were likely to occur, and the effect of reducing the burden of accounting work by the cashier was insufficient.

Therefore, according to the present invention, not only the change paying work but also the deposit amount calculation and the input work can be eliminated, and the work load of the accounting work by the cashier can be greatly reduced and the time of the accounting work can be shortened. As a result, an object of the present invention is to provide a product sales data processing device capable of improving the efficiency of the entire product sales registration work.

[0012]

The present invention has a total amount memory for storing the total amount of merchandise registered for sale in one transaction and a deposit amount memory for storing the deposit amount from a customer. In the product sales data processing device that calculates change from the contents of the sales amount memory and the contents of the deposit amount memory in response to the registration closing key operation input, a currency storing unit for storing the currency by money type and a currency insertion Account and currency outlet, a currency selection unit that sorts the currency input from the currency input port into the currency storage unit and stores it in the currency storage unit, and the denomination of the currency input from the currency input port during one transaction and A deposit amount storage means for recognizing the number of sheets and calculating the total deposit amount and storing it in the deposit amount memory, an amount comparing means for comparing the contents of the sales amount memory and the contents of the deposit amount memory, and the result of the comparison by this comparing means, If the content of the upper amount memory is larger than the content of the deposit amount memory, the difference between the difference amount is notified to the customer as a shortage amount, and the comparison means by the comparison means after the registration closing key is operated. As a result, when it is determined that the contents of the sales amount memory are less than or equal to the contents of the deposit amount memory, a change processing means for notifying the customer of the difference as a change and automatically discharging the currency corresponding to the change amount from the currency outlet. It is equipped with and.

[0013]

According to the present invention having such a configuration, the cashier registers the sales of the product purchased by one customer, and when the registration is completed, the cashier operates the registration closing key. In addition, the currency (banknotes and coins) received from the customer is inserted from the currency insertion slot. The currency may be inserted by the customer himself. In this way, the currency input from the currency input port is sorted by denomination by the currency selection unit and stored in the currency storage unit. Further, the total amount of money input is calculated from the denomination and the number of inserted currency, and the total amount of input money is stored in the deposit amount memory. The sales amount memory stores the total amount of products purchased by the customer.

However, if the contents of the sales amount memory and the contents of the deposit amount memory are compared with each other, and it is determined that the contents of the sales amount memory are equal to or less than the contents of the deposit amount memory, the difference is calculated. The customer is notified of the change and the currency corresponding to the change amount is automatically discharged from the currency outlet.

On the other hand, as a result of the comparison, if the contents of the sales amount memory are larger than the contents of the deposit amount memory, the difference is notified to the customer as a shortage amount. Therefore, the currency corresponding to the shortage amount is changed again. Insert from the input port. Then, the total input amount is added to the contents of the deposit amount memory. Then, as a result of the comparison between the contents of the sales amount memory and the contents of the deposit amount memory, if it is determined that the contents of the sales amount memory is less than or equal to the contents of the deposit amount memory, the difference is notified to the customer as a change. At the same time, the currency equivalent to the change amount is automatically discharged from the currency outlet.

Therefore, the work of counting the currencies received from the customer to calculate the deposit amount, the work of inputting the deposit amount and the work of paying the customer with a currency equivalent to the change amount are all automated. It

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the present invention is applied to a POS terminal will be described below with reference to the drawings. In this example, assuming that the currency is used in Japan, there are three types of currency bills: 10,000 yen bills, 5,000 yen bills and 1,000 yen bills, and coins are 500 yen coins, 100 yen coins, There are six types of fifty-yen coins, ten-yen coins, five-yen coins, and one-yen coins.

FIG. 1 is a perspective view showing the external structure of the POS terminal in this embodiment. This POS terminal includes a terminal body 6 equipped with a keyboard 1, a cashier display 2, a customer display 3, a printer 4, a bar code scanner 5 and the like.
And an automatic currency storing / discharging unit 7 having a function of storing deposit amount and paying change.

The keyboard 1 is composed of a plurality of PLUs preset with product codes set for respective products.
PLU with (price look up) key
It is composed of a keyboard 1a and a function keyboard 1b on which numerical keys, subtotal keys, registration closing keys, clear keys, cancel keys, discount keys and the like are arranged.

The cashier display 2 displays the name, sale amount, total amount, deposit amount, change amount, etc. of the commodities registered for sale in one transaction, as well as a message to the cashier by electronic display. In addition, the customer display 3 electronically displays a message to the customer in addition to the name, sale amount, total amount, deposit amount, change amount, etc. of the products registered for sale in one transaction.

The printer 4 is for printing product sales data, total data, etc. on roll paper receipt paper and journal paper, and is housed inside the terminal body 6a. Then, the receipt paper on which the data is printed is discharged from the receipt issuing port 4a to the outside of the main body, and the journal paper is wound inside.

The bar code scanner 5 is for optically reading a bar code (product code) attached to a product.

In addition, "registration", "check", "settlement",
A mode switch 8 for selectively switching various modes such as “setting” is provided on the keyboard 1. By the way, the "registration" mode means the barcode scanning operation by the barcode scanner 5 or the PLU keyboard 1
The product data file is searched by the product code input by the key operation of a, and product data such as the product name and unit price of the sold product is acquired, and the product sales data such as the number of sales and the sales amount is obtained based on the product data. This is a mode of business in which sales are registered in the registration memory and sales receipts of products registered for the transaction are issued in response to the operation input of the registration closing key that declares the end of registration of one transaction.

The "inspection" mode is a business mode in which the contents of the registered memory registered for sales in the "registration" mode are output as a report, and the "settlement" mode is a report output in which the contents of the registered memory are output as in the "inspection" mode. After that, the operation mode to clear the registered memory, and the "setting" mode is the operation mode that presets the data necessary for executing various modes such as "registration", "inspection", and "payment" in the memory. Is.

On the front of the automatic currency storing / discharging unit 7, there are a bill insertion / discharging port 9 with an opening / closing door for inserting and ejecting bills, as a currency insertion port and a currency ejection port.
A coin input / discharge port 10 used for inputting and discharging coins is formed.

FIG. 2 is a block diagram showing the control circuit configuration of the POS terminal. The terminal body 6 includes a CPU (central processing unit) 11 that functions as a main control unit, a ROM (read only memory) 12 in which fixed data such as program data processed by the CPU 11 is stored in advance, and a product of each product. A product data table in which product data such as product name and unit price is set corresponding to the code, a registration memory for registering sales of product sales data, and a total storing the total amount of products that have been registered for sales in one transaction. A RAM (random access memory) 13 in which various memory areas such as an amount memory M1 and an amount memory M2 for storing an amount of money from a customer are formed is provided.

A transmission control circuit 1 for controlling data transmission between the host device and a host device via a transmission line.
4, a keyboard circuit 15 for receiving a key signal sent from the keyboard 15, an I / O port 16 to which a signal from the mode switch 8 is input, and a bar code data signal read by the bar code scanner 5. Scanner control circuit 17 for inserting, display control circuit 18 for driving and controlling each of the display devices 2, 3 to display characters, numbers and the like corresponding to display data, and controlling data printing on receipt paper and journal paper by the printer 4. Interface (I / F) circuit 2 for exchanging signals between the printer control circuit 19 and the automatic currency storing / discharging unit 7.
An input / output circuit unit such as 0 is provided.

The CPU 11, the ROM 12 and the RAM 13 and each input / output circuit section (transmission control circuit 14, keyboard circuit 15, I / O port 16, scanner control circuit 17, display control circuit 18, printer control circuit 19 and interface circuit). 20) and the like) are electrically connected by a bus line 21.

The automatic currency storing / discharging unit 7 has a coin sorting mechanism 22 for sorting the coins inserted from the coin input / discharging port 10 into denominations, and the coins sorted by the coin sorting mechanism 22 into denominations. Coin storage part 2 to store
3. The total amount of coins inserted is calculated from the denomination and the number of coins sorted by denomination by the coin sorting mechanism 22, and the total amount data is used as the interface circuit 20.
And a coin discharge command circuit 25 for selecting the required number of coins stored in the coin storage unit 23 according to the change coin data from the interface circuit 20 and discharging the coins from the coin input / output port 10. I have it.

Also, the automatic currency storing / discharging unit 7
Is a banknote sorting mechanism 26 for sorting the banknotes inserted from the banknote input / output port 9 by denomination, and the banknote selection mechanism 26.
The bill storage unit 27 that stores the bills sorted by denomination, the total amount of inserted bills is calculated from the denomination and the number of bills sorted by denomination by the bill sorting mechanism 26, and the total amount data is calculated. The interface circuit 20
A banknote recognizing circuit 28 for sending to a banknote output circuit, and a banknote discharging command circuit 29 for selecting the required number of banknotes stored in the banknote storing unit 27 according to the change banknote data from the interface circuit 20 and discharging the selected banknotes from the banknote input / output port 9. I have it.

Therefore, the CPU 11 of the terminal body 6
In the state where the "registration" mode is selected by the mode switch 8, the program is set so as to execute each process shown in the flowchart of FIG.

That is, in ST (step) 1, when the commodity code is input by scanning the barcode with the barcode scanner 5 or the key operation of the PLU keyboard 1a and the customer's purchased commodity is registered, S
As T2, it is judged from the state of the registration flag stored in the RAM 13 whether or not this product registration is the first product registration in one transaction. Then, if the registration flag is reset, it is the first registration, so it is set and the total amount area M1 and the deposit amount area M2 are cleared. If the registration flag has already been set, the memory is not cleared because the registration is for the second and subsequent points.

After that, the product data file is searched by the input product code to acquire product data such as the product name and unit price of the product to be sold, and the product sales data such as the number of sales and the sales amount is obtained based on the product data. And register sales in the registration memory. When the sales amount is added to the total amount area M1, the process returns to the determination process of ST1.

When a coin or bill insertion interruption is detected through the interface circuit 20 in ST3 in the state where the merchandise is not registered in ST1, the total amount given from the coin insertion recognition circuit 24 in the case of coin insertion in ST4. In the case of depositing bills, the total amount data given from the bill deposit recognition circuit 26 is added to the deposit amount memory M2 (insertion amount storage means). Then, it returns to the determination process of ST1.

Product registration has not been performed in ST1,
When the operation input of the registration closing key on the function keyboard 1b is detected in ST5 in the state where the currency insertion interrupt is not input in ST3, the closing key processing concretely shown in FIG. 4 is executed.

That is, after the registration flag is set, it is confirmed that the product has been registered for one transaction, and then the contents A of the total amount area M1 and the deposit amount area M are stored.
The difference C is calculated by comparing with the content B of 2 (amount comparison means).

As a result of this comparison, when the content A of the sales amount memory M1 is larger than the content B of the deposit amount memory M2, the difference −C is regarded as a shortage amount together with the sales amount A and the deposit amount B. It is displayed on the cashier display 2 and the customer display 3 to notify the cashier and the customer of the shortage amount-C (shortage amount notifying means). afterwards,
Returning to the determination processing of ST1.

On the other hand, the contents A of the total amount area M1
If the content of the sales amount memory M1 is equal to or less than the contents of the deposit amount memory M2 as a result of comparison between the deposit amount area M2 and the deposit amount area M2, the difference C is used as a change amount together with the sales amount A and the deposit amount B. The change amount C is displayed on the cashier display 2 and the customer display 3 to notify the cashier and the customer.

When the change amount C is more than 0 yen, that is, when the change amount needs to be paid, a combination of denominations for which the minimum amount of currency is required for paying the change amount C is calculated by the procedure described later. After that, change coin data and change banknote data are created based on the calculation result, and the coin discharge command circuit 25 and the banknote discharge command circuit 2 are output from the interface circuit 20.
9 (change processing means).

After that, if a receipt printed with detailed data of the commodities registered for sale in one transaction by the printer 4 and the registration closing data of the total amount, deposit amount and change amount is discharged from the receipt issuing port 4a, The in-registration flag is reset, and the closing key process ends.

Here, the calculation procedure for obtaining the combination of denominations in which the currency is the minimum number when paying the change amount C is shown in FIG.
Will be explained. In the figure, x and a to h are register memories formed in the RAM 13. Then, before starting this processing, the change amount C is set in the x register. Further, data "0" is set in each of the registers a to h.

When this process is started in this state, first, it is determined whether the content of the x register is 5000 or more, which is the maximum unit of banknotes that can be changed. When it is 5,000 or more, 5000 is subtracted from the contents of the x register and data "1" is set in the a register indicating the number of 5,000 yen bills. If it is less than 5000, the above processing is not performed.

Next, it is judged whether the content of the x register is 1000 or more, which is the next bill unit. When it is 1000 or more, 1000 is subtracted from the contents of the x register, and data "1" is added to the b register indicating the number of 1,000-yen bills. After that, this process is repeated until the content of the x register becomes less than 1000. Then, if the content of the x register is less than 1000, the process proceeds to the next.

Next, it is determined whether the content of the x register is 500 or more, which is the maximum unit of coins that can be changed. If the value is 500 or more, 500 is calculated from the contents of the x register.
And the data "1" is set in the c register indicating the number of 500-yen coins. If it is less than 500, the above processing is not performed.

Next, it is determined whether the content of the x register is 100 or more, which is the next coin unit. And when it is 100 or more, 100 is subtracted from the content of the x register, and
Data "1" is added to the d register indicating the number of hundred-yen coins. After that, this process is repeated until the content of the x register becomes less than 100. Then, when the content of the x register is less than 100, the process proceeds to the next.

Next, it is determined whether the content of the x register is 50 or more, which is the next coin unit. When it is 50 or more, 50 is subtracted from the contents of the x register and data "1" is set in the e register indicating the number of fifty yen coins. If it is less than 50, the above process is not performed.

Next, it is determined whether the content of the x register is 10 or more, which is the next coin unit. When it is 10 or more, 10 is subtracted from the contents of the x register and data "1" is added to the f register indicating the number of ten-yen coins.
After that, this process is repeated until the content of the x register becomes less than 10. When the content of the x register is less than 10, the process proceeds to the next.

Next, it is determined whether the content of the x register is 5 or more, which is the next coin unit. And x is 5 or more
At the same time as subtracting 5 from the contents of the register, data "1" is set in the g register indicating the number of five-yen coins. If it is less than 5, the above process is not performed.

Thereafter, the contents of the x register are set in the g register indicating the number of 1-yen coins, which is the minimum coin, and the calculation is completed.

Thus, the change bill data is created based on the contents of the a register and the b register, and the change coin data is created based on the contents of the c register to the h register, and the coin is discharged from the interface circuit 20. Command circuit 25
And bill discharge command circuit 29, respectively.

In the POS terminal 1 of this embodiment having the above structure, the bar code scanner 5 or the PLU is used.
When the keyboard 1a is operated and the first product registration in one transaction is performed, the total amount memory M1 and the deposit amount memory M2 are once cleared, and then the sales amount of the registered product is stored in the total amount memory M1. Next, when the second and subsequent products in this transaction are registered, the sales amount of each registered product is added to the total amount memory M1. Thus, the total amount memory M1 stores the total amount of products purchased in one transaction.

On the other hand, when a bill is inserted from the bill insertion / ejection port 9, the denomination of the inserted bill is sorted by the bill sorting mechanism 26, and then the deposited bill is stored in the bill storage unit 27 by denomination. . Further, the bill recognition circuit 28 calculates the total amount of money to be deposited from the denomination and the number of bills to be inserted, and a currency insertion interrupt including the data of the total amount of money to be inserted is given to the CPU 11 through the interface circuit 20. As a result, the total amount data of the bills inserted from the bill insertion / ejection port 9 is added to the deposit amount memory M2.

Similarly, when a coin is inserted from the coin insertion / ejection port 10, the denomination of the inserted coin is coin selection mechanism 22.
After being sorted by, the inserted coins are stored in the coin storage unit 23 by denomination. Further, the coin recognizing circuit 24 calculates the total amount of coins to be inserted from the denomination and the number of coins to be inserted, and a currency coin interruption including the total coin amount data is given to the CPU 11 through the interface circuit 20. As a result, the total amount data of coins inserted from the coin input / output port 10 is added to the deposit amount memory M2.

Thus, the deposit amount memory M2 stores the bill insertion / ejection port 9 and the coin insertion / ejection port 1 during one transaction.
The total amount of bills and coins inserted from 0 is stored.

After that, the registration closing key is operated and input 1
When the end of transaction registration is declared, the total amount memory M
Total amount A in 1 and deposit amount B in deposit amount memory M2
And are compared. When the deposit amount B is equal to or more than the total amount A, the payment has been normally performed. Therefore, the change amount C, which is the difference between the deposit amount B and the total amount A, is displayed on the cashier display 2 and the customer display. It is displayed on the container 3.

When the change amount C is larger than 0 yen, a combination of denominations that gives the minimum number of currencies to calculate the change amount C is calculated, and then the change coin data and the change amount data are calculated according to the calculation result. Is the interface circuit 20
From the coin discharge command circuit 25 and the bill discharge command circuit 29.

As a result, among the currencies stored in the bill storage unit 27 and the coin storage unit 23 according to denominations, the currency corresponding to the change amount C is automatically supplied from the bill insertion / ejection port 9 and the coin insertion / ejection port 10. Will be discharged. Further, the receipt is ejected from the receipt issuing port 4a.

On the other hand, the total amount A in the total amount memory M1
And the deposit amount B in the deposit amount memory M2,
When the deposit amount B is insufficient with respect to the total amount A, the difference amount-deficit amount-C is displayed on the cashier display 2 and the customer display 3.

After that, when currency is again inserted from the bill insertion / ejection port 9 and the coin insertion / ejection port 10, the total amount data of the input currency is added to the deposit amount memory M2. When the registration closing key is operated after the deposit amount B in the deposit amount memory M2 becomes equal to or larger than the total amount A in the total amount memory M1, the change amount C is calculated and displayed, and the change amount is also displayed. The currency corresponding to the amount C is automatically discharged. Also, a receipt is issued.

For example, if a customer who purchases 3090 yen including tax pays three thousand-yen bills, and the cashier puts them in from the bill insertion / ejection slot 9 and operates the closing key, the cashier display 2 and the customer's As shown in FIG. 6A, the display device 3 displays the message information 61 indicating that the price of 90 yen is insufficient.

Then, the customer pays one thousand yen bill,
When the cashier inserts it from the banknote input / output port 9 and operates the tightening key, the information 62 indicating the change amount 910 yen is displayed on the cashier display 2 and the customer display 3 as shown in FIG. 6B. Displayed and coin input / output port 1
One 0 to 5 hundred-yen coin, four 100-yen coins and one 10-yen coin are ejected, so the change is handed to the customer along with the receipt.
It should be noted that FIG. 6 shows only an example of a display screen on the customer display unit 3.

At this point, the cashier completes the accounting work including the transfer of money, and finishes the product sales registration work with the customer.

As described above, according to the present embodiment, among the currencies paid by the customer as the price of the purchased goods, the bills are inserted into the bills.
By simply inserting coins from the outlet 9 from the coin input / output port 10, respectively, the total of the input amounts, that is, the deposit amount is stored in the deposit amount memory M2, so that the cashier calculates and deposits the deposit amount. It is possible to eliminate the trouble of entering a number. As a result, mistakes in counting the amount of deposits and mistakes in entering numbers are eliminated, and change payments are automated, so that the cashier's work load for accounting work can be greatly reduced.

Further, since the work of calculating the deposit amount and inputting the entered number is omitted, the time spent for the accounting work can be shortened, and the efficiency of the whole merchandise sales registration work can be improved.

Further, the POS terminal of this embodiment is provided with an automatic currency storing / discharging unit 7, all cash is stored in this unit, and for example, a door formed on the back of the unit is opened by using a key or the like. It cannot be taken out easily unless it is done. Therefore, it is not possible to rob the cash, which was possible with the conventional POS terminal equipped with a drawer, so that an excellent effect can be obtained in terms of crime prevention.

In the above embodiment, the POS terminal body 6 and the automatic currency storing / discharging unit 7 are integrally formed, but these are separate bodies and the customer himself receives the currency and receives the change as the payment. Can also be configured to do. Further, each currency insertion port and each currency ejection port for bills and coins may be separately provided.

In the above embodiment, the total amount memory M1
Although the contents of the above and the contents of the deposit amount memory M2 are compared only after the closing key operation, they are compared every time product registration is performed, and if the deposit amount is insufficient, the customer is informed of the insufficient amount. You may comprise. By adopting this configuration in, for example, a system in which the POS terminal body 6 and the automatic currency storing / discharging unit 7 are separated from each other, the customer puts in an appropriate currency at the time of starting the registration, and then a shortage occurs. In that case, it becomes possible to operate such that the currency is input again.

By adopting such an operation, in most transactions, the work of inserting the currency after the final product registration is unnecessary, so the time from the final product registration to the operation of the registration closing key can be shortened. You will be able to plan.

In addition, it goes without saying that various modifications can be made without departing from the scope of the present invention.

[0070]

As described in detail above, according to the present invention, the total amount of currency inserted from the currency insertion slot is automatically calculated as the deposit amount, and the deposit amount is compared with the total amount in one transaction. Then, when the deposit amount is more than the total amount, the difference is automatically paid as the change amount. Therefore, not only the change payment process but also the deposit amount calculation and the input work can be omitted. It is possible to provide a product sales data processing device capable of significantly reducing the work load of the accounting work, shortening the time of the accounting work, and eventually improving the efficiency of the product sales registration work.

[Brief description of drawings]

FIG. 1 is an external perspective view of a POS terminal that is an embodiment of the present invention.

FIG. 2 is a block diagram showing a control circuit configuration of the POS terminal according to the embodiment.

FIG. 3 is a flowchart showing a main part of registration work processing executed by the CPU of the POS terminal in the embodiment.

FIG. 4 is a flowchart specifically showing a closing key process in FIG.

5 is a flowchart showing a denomination combination calculation procedure corresponding to the change amount in FIG.

FIG. 6 is a plan view showing an example of a customer display screen in the embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Keyboard 2 ... Cashier display 3 ... Customer display 4 ... Printer 5 ... Bar code scanner 6 ... Terminal body 7 ... Automatic currency storing / discharging unit 9 ... Banknote storing / discharging port 10 ... Coin storing / discharging port 11 ... CPU (Central Processing Unit) 20 ... Interface circuit 22 ... Coin sorting mechanism 23 ... Coin storage unit 24 ... Coin recognition circuit 25 ... Coin discharge command circuit 26 ... Banknote selection mechanism 27 ... Banknote storage unit 28 ... Banknote recognition circuit 29 ... Banknote discharge Command circuit M1 ... Total amount memory M2 ... Deposit amount memory

Claims (1)

[Claims] 1. A total amount memory for storing the total amount of products registered for sale in one transaction, and a deposit amount memory for storing the deposit amount from a customer. In a commodity sales data processing device configured to calculate a change from the contents of the sales amount memory and the contents of the deposit amount memory, a currency storing unit for storing currency by denomination, a currency insertion port and a currency outlet. A currency selection unit that sorts the currency input from the currency input port into denominations and stores it in the currency storage unit; and recognizes the denomination and the number of denominations of the currency input from the currency input port during one transaction. Then, the total amount of money to be deposited is calculated and stored in the deposit amount memory, and the amount comparison unit for comparing the contents of the sales amount memory with the contents of the deposit amount memory, As a result of comparison, when the content of the sales amount memory is larger than the content of the deposit amount memory, a shortage amount notifying means for notifying the customer of the difference as a shortage amount, and the registration closing key are operated and input. When it is determined that the content of the sales amount memory is equal to or less than the content of the deposit amount memory as a result of the comparison by the comparison unit later, the difference is notified to the customer as a change and the currency corresponding to the change amount is changed. A commodity sales data processing device comprising: a change processing unit that automatically discharges money from the currency outlet.