JPH01263896A - Electronic cash register - Google Patents

Abstract

PURPOSE:To improve an operability by automatically displaying the balance of a card from which the mount of money is subtracted for every registration of goods at the time of using a prepaid card. CONSTITUTION:When a memory card in which balance data is stored is inserted into a card reader/writer 7, the balance data of this card is read, stored in a balance memory and the balance data is displayed by a display device 3. Thereafter, the goods is sold and registered, and then, the contents of the storage of the balance memory are updated to data obtained by subtracting the amount of sale money from the balance data and the contents of the display device 3 are updated to the balance data after updating. The contents of this balance memory are written in the memory card through the card reader/writer 7 as new balance data.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an electronic cash register that can process merchandise sales using a card (prepaid card) in which a total purchase limit is stored in advance.

[Prior art 1] For example, as seen in the payment of telephone charges at public telephones and the sale of railway tickets, a customer purchases in advance a memory card, a so-called prepaid card, on which the total purchase limit is stored in advance.
Unlike a credit card, this sales system that allows you to purchase products up to the total limit mentioned above does not require confirmation of authenticity, so it can be introduced at general retail stores to improve work efficiency in sales registration work. We can expect improvement. Therefore, the applicant provided a card reader/writer for prepaid cards to read the card balance and input new balance data, and to perform normal sales registration operations with the prepaid card inserted in this card reader/writer. Then, when a closing operation is performed using a card at JLL, the total sales amount is deducted from the card balance, and the electronic cash register is re-applied to the card after the reduction. Yes (Special application 1986-
No. 44554).

[Problems to be Solved by the Invention] However, the electronic cash register disclosed in Japanese Patent Application No. 61-44554 has the following problems.

That is, some customers may want to check the current card balance during product registration and decide whether to purchase the remaining products based on that amount. In such a case, when using the J3 electronic cash register, the cashier must enter the subtotal key and then the card balance key to display the card balance on the display every time a product is registered. However, the key operations were complicated and workability was poor.

SUMMARY OF THE INVENTION Therefore, the present invention provides an electronic cash register that automatically displays the card balance, which is reduced each time a product is registered, when a prepaid card is used.

[Means for Solving the Problems] The electronic cash register of the present invention includes a card reader/writer that reads balance data stored in a memory card and writes new balance data, and a memory that reads data from the card reader/writer. A balance memory that stores card balance data, and a balance memory updating means that updates the stored contents of the balance memory to data obtained by subtracting the sales amount from the balance data when the sales amount of the sales registered product is less than the balance data of the balance memory. , a balance data display means for automatically displaying the balance data in the balance memory, and a new balance data writing control means for writing the contents of the balance memory as new balance data into the memory card via a card reader/writer. .

[Effect 1] With an electronic key ash register that takes such measures, when a memory card with balance data stored is inserted into the card reader/writer, the balance data of this card is read and stored in the balance memory. and displayed by the balance data automatic display means. After that, when the product is registered for sale, if the sales amount of the registered product is less than or equal to the balance data in the balance memory, the content stored in the balance memory is updated to data obtained by subtracting the sales amount from the balance data, and the automatically displayed content is The balance data is also changed to the updated v/ilI balance data. The contents of this balance memory are then written to the memory card as new balance data via the card reader/writer.

[Real IA example 1 Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a perspective view showing the external configuration of the electronic cash register in this embodiment. As shown, the housing 1
Department of merchandise for sale front and center.

A keyboard 2 is provided for inputting sales data such as sales amount, and a display 3 is provided on the upper front surface for electronically displaying categories of sales items, total sales amount, etc. Further, a receipt issuing port 4 is formed adjacent to the keyboard 2 at the center of the front surface.

A drawer 5 for storing cash and the like is installed on the lower surface of the housing 1, and a customer display 6 having the same structure as the cashier display 3 is attached on the upper surface of the housing 1.

Further, a card reader/writer 7 is attached to the lower side of the gear rasher display 1 for reading and writing card data recorded on a card constituted by a magnetic card.

Note that amount data is magnetically recorded on the card used in this electronic cash register. The product is sold to the customer with the total purchase limit recorded in advance as the amount, and the customer can use this so-called prepaid card to purchase products up to the above-mentioned limit.

As shown in FIG. 2, the keyboard 2 includes a number key 8 for inputting the sales amount of the sold product, a department key 9 for inputting the department to which the sold product belongs, and a department key 9 for calculating the subtotal amount. For sales registration, such as a subtotal key 10 for cash settlement, a deposit 7/cash key 11 as a registration line key when collecting cash, and a card key 12 as a registration line key when making card payments using the prepaid card. In addition to the keys, various function keys such as a return key 13 and a cancel key 14 are provided. In addition, on the keyboard 2 there is rfllJ "Inspection J".
A control key 15 is provided that is operated with a key for selecting 62 each task such as setting j.

As shown in FIG.
It consists of an electronic display tube of tiers and ma try marks that display the status of this electronic cash register such as (0 record) (subtotal) (total). In the upper part of the electronic display tube, the balance data stored in the balance memory 43 in the RAM 24, which will be described later, is displayed, and in the lower part, the sales amount and department of the registered sales products, the subtotal amount 1 total amount, etc. is displayed.

FIG. 4 is a block configuration diagram showing the internal configuration of the electronic cash register. In the figure, 21 is a CPtJ (Central Processing Unit) which has a built-in arithmetic circuit, a memory control W1 circuit, etc., and performs predetermined processing according to various input data, and also performs A ROM 23 stores fixed data such as programs for executing each task, and a ROM 23 that stores various input data and performance W! i! The RAM 24, which stores variable data such as physical data, is operated. Also, there is an input/output board 25 that sends and receives command signals from the control key 15 and card data to and from the card reader/writer 7, and a printer 2 that prints on receipts.
The input/output board 29 sends drive signals to the printer drive circuit 27 of 6 and the drawer opening device 28 of the drawer 5, the display controller 30 drives and controls each display 3.6, and inputs and processes key signals from the keyboard 2. The pass line 22 includes the input/output board 34, which sends drive signals to the keyboard controller 31, the buzzer drive circuit 33 of the buzzer 32, etc.
It is connected to the CPU 21 via.

As shown in FIG. 5, the target RAM 24 stores, in addition to a sales registration file 41 that aggregates the sales data of each product registered for sale with this electronic cash register by department, transaction, etc. A totalizer memory 42 that calculates the total amount by accumulating the amounts of products sold to customers, a balance memory 43 that stores balance data of the prepaid card inserted in the card reader/writer 7, - during registration work for customers. Flag memory 4 that stores a registration flag indicating that
4. Indicates that the prepaid card sales registration process is in progress. 4)]-Flag memory 4 that stores the card processing flag.
5. Flag memory 46 that stores a card entry flag indicating that card data has been read by the card reader/writer 7
, flag memory 47.11 that stores a card shortage flag indicating that the sales amount is greater than the card balance! A stroke number register 48 for temporarily storing number data entered by the number key 8 is configured.

When the electronic cash register is powered on and various initial processes are completed, the CPU 21 is programmed to execute a main routine according to the flowchart shown in FIG. That is, if no key data is input at P1, it is determined at P2 whether or not a prepaid card is inserted into the card reader/writer 7. If no card is inserted,
As P3, the card insertion flag in the flag memory 46 is checked, and if it is set to "1", it indicates that the inserted card has been removed, so it is reset to "10".

If a prepaid card is inserted at P2, the card insertion flag in the flag memory 46 is checked at P4, and "0" is detected.
”, the card data (amount data) of the inserted card is read and added to the balance memory 43 of the RAM 24.

Then, the contents of this balance memory 43, that is, the card balance, are displayed on the upper display tubes of each display 3, 6. Then,
Both P5s check the status of the card processing flag in the flag memory 45, and if it is cleared to "0", this indicates that the first card of a customer shopping with a prepaid card has been inserted, so the flag memories 45 and 46 Both the card processing flag and card input flag are set to "1".

If the card processing flag is set to "1" at P5, this indicates that the second or later card of the customer who is shopping with a prepaid card has been inserted, so the balance data in the balance memory 43 is zero at P6. Determine whether the amount is greater than or equal to the amount. If the amount is more than zero, the card input flag in the flag memory 46 is set to "1", and the card processing flag in the flag memory 47 is reset to "O" (-).On the other hand, if the balance data is negative, For example, "balance = 0 yen" is written on the card via the card reader/writer 7, and the card is ejected.

When key data is input from the keyboard 2 at Pl, the type of the key data is checked after confirming that the control key 15 is set to the "registration" mode. If the key data as Pl is based on the department key 9, the department key process shown in FIG. 7 is executed.

In FIG. 7, when department key processing is started, pll
The state of the card processing flag in the flag memory 45 is checked, and if it is cleared to ``0'', the corresponding normal process is executed because it is a department registration of a product purchased by a customer who does not use a card to shop. If the card 98 processing flag is set to rlJl, :l, it is the department registration of the product purchased by the customer who is shopping with a prepaid card, so the flag memory 4 is set as p12.
The state of the card shortage flag 7 is checked, and if it is set to ``1'', this department registration is invalidated and an error process is performed.

If the card shortage flag is cleared to "0" at P+2, then the number type (sales amount) in the number register 48 is compared with the balance data in the balance memory 43 at P+3. If the registered number class is less than or equal to the balance data, this department registration is valid, so the registration flag in the flag memory 44 is set to "1".
” set to cover. Next, the number of strokes is added to the totalizer memory 42, and the number M is subtracted from the balance memory 43. In addition, the department code and number of strokes manually entered by the key are displayed on the lower display tube of each display 3.6, and the lower display tube displays the current content of the balance memory 43, that is, the balance data after subtracting the 100-hour amount. It will be updated. Furthermore, the printer 26 is driven to print out the department code and number of strokes on the C receipt, and the number and number of strokes are accumulated in the corresponding department area of the sales registration file 41 (memory processing), and the main routine shown in FIG. return.

If the @ amount is greater than the card balance in Pl3, the 8th
Execute the shortage processing shown in the figure. In FIG. 8, when the shortage process is started, first, M in the fllf number register 48 is
A deficit amount is calculated by subtracting the balance data in the balance memory 43 from the numerical value, and this deficit amount is displayed with a minus sign attached to the lower display tube of each display 3.6. In this state, key data can be input from the keyboard 2. and,
If the key data of the cancellation key 14 is input as P21, the customer has canceled the purchase of products exceeding the card balance, so the number register 48 is cleared, the display of the insufficient amount is cleared, and the sixth Return to the main route shown in the figure.

On the other hand, if the key data of the cancel key 14 is not input in P21 and the key data of the return key 13 is input in P22, the customer will make up for the shortfall with another card, so the contents of the balance memory 43 will be changed. Change to the calculated shortfall amount (<0). Next, the card reads “Balance -” via the card reader/writer 7.
Please bring 0 yen.

Eject this card. Thereafter, the process returns to the main routine shown in FIG.

In addition, P21. If the key data of the cancel key 14 or the return key is not input at P22, but other key data is input, this key data is ignored and the next key data is input.

In the main routine of FIG. 6, if the key data as P8 is a card key, the card key of FIG. 9! 2! Execute the first step. In FIG. 9, when card key processing is started, P31 indicates that the registration flag of the memory flag 44 is "1", P32 indicates that the card processing flag of the memory flag 45 is "1", and P3
3, the card input flag of memory flag 46 is "1"
After checking that the card shortage flag of the memory flag 47 is "0" as P34, the total amount accumulated in the totalizer memory 42 is displayed on the lower display tube of each display 3゜6. Also print out the receipt and issue the receipt from the receipt issuing port 4? j. In addition, this total amount of 51 is accumulated in the corresponding transaction area of the sales 0g no isle 41 (memory processing), and then the balance data in the balance memory 43 is transferred to the card as a new balance data via the card reader/writer 7. write and eject the card. Thereafter, the balance memory 43 and the totalizer memory 42 are cleared, and both the Ω recording flag and the card processing flag in the flag memories 44 and 45 are reset to "0", and the process returns to the main routine shown in FIG.

In this embodiment with such a configuration, when the prepaid card brought by the customer is inserted into the card reader/writer 7,
Amount data magnetically recorded on the card (card balance)
is read and stored in the balance memory 43, and the card balance is displayed on the upper display tube of each display 3, 6. In this state, the numeric key 8 and department key 9 on the keyboard 2
A normal sales registration operation is carried out using , but each time this registration operation is carried out, the sales amount and balance memory
3 is compared with the balance data, and if the sales amount is less than or equal to the balance data, the sales registration for that product is valid. If the sales registration is valid, the balance memory 4
The sales amount is subtracted from the balance data in 3, and the balance data after the subtraction is automatically displayed on the upper display tube of each display 3.6.

Note that the department code and sales amount of the product registered for sale are displayed on the lower display tube of each display 3.6 as before.

On the other hand, if the sales amount exceeds the balance data, the insufficient amount (sales amount - balance data) is displayed as a minus on the lower display tube of each display 3.6, and subsequent sales registration operations are prohibited. In this state, the cashier asks the customer whether or not they wish to cancel the purchase of this product, and if they wish to cancel, the cashier presses the cancellation key 14.
operate. If you do so, the state returns to the state before registration of this product and the sales zero recording operation is permitted.

On the other hand, if the customer does not cancel, the customer receives another prepaid card and operates the return key 13. Then, the card already inserted into the card reader/writer 7 is discharged with a card balance of -0 yen. At this time, the remaining amount memory 43 stores the insufficient amount .(kuO). The cashier removes the ejected card and inserts another prepaid card newly received from the customer. Then, the card balance of the newly inserted card is read, and the amount obtained by subtracting the insufficient amount in the balance memory 43 from the card balance is stored as balance data in the balance memory 43, and the upper part of each display 3, 6 displayed on the display tube. In this way, when the amount in the balance memory 43 reaches one amount or more, the sales registration operation for that violation is permitted.

Then, after registering all the products sold by that customer,
When the card key 12 is operated, the balance data in the balance memory 43 is written as new balance data on the card by the card reader/writer 7 and then ejected, so that the cashier returns the card to the customer together with the issued receipt.

As described above, according to this embodiment, each time a θ string is performed for a product, the card balance from which the sales amount of the product is subtracted is automatically displayed on the upper display tube of each display 3.6. Therefore, the customer can always be aware of the card balance, and can, for example, judge from the balance whether to cancel the purchase of the remaining products. In addition, such real-time card balance display is automatically performed by performing normal sales registration operations, so there is no need for complicated key operations, and it does not reduce the cashier's work efficiency. .

In addition, although a magnetic card was used as the prepaid card in the above embodiment, an IC card may also be used. in this case,
It is also possible to record registration details and the like in addition to the amount data in the memory of the card.

Further, in the above embodiment, the display 3.6 is made up of two display tubes, upper and lower, but the display 3.6 is made up of a normal one-level display tube and is designed to display the sales data followed by the card balance every time a sales registration operation is performed. You may also do so. Furthermore, a separate display may be provided for displaying the card balance. It goes without saying that various other modifications can be made without departing from the spirit of the invention.

[Effects of the Invention] As detailed above, the present invention provides an electronic cash machine that can automatically display the card balance, which is reduced each time a product is registered, when using a prepaid card, and can improve work efficiency. Can you provide me with a register?

[Brief explanation of the drawing]

1 to 9 are diagrams showing one embodiment of the present invention, in which FIG. 1 is a perspective view showing the external configuration of an electronic cash register, and FIG. 2 is a perspective view showing the key arrangement of a keyboard. Figure 3 shows the configuration of the display, Figure 4 is a block diagram of the electronic cash register, Figure 5 shows the main memory configuration of RAM, and Figure 6 shows the main routine of the CPU. 7 is a flowchart showing department key processing, FIG. 8 is a flowchart showing shortage processing, and FIG. 9 is a flowchart showing card key processing. 2...Keyboard, 3.6...Display unit, 7...Card reader/writer, 8...Number key, 9...Department key, 12...Card key, 21...CPU , 23・
...ROM, 24...RA~1.42...summer,
43... Balance memory, 44.45.46.47...
flag memory. Applicant's representative Patent attorney Suzue K. 2nd mouth 3rd prisoner 4 Figure 5 Figure C5 30th 7th chopsticks 8 b

Claims (1)

[Claims] A card reader/writer that reads the balance data stored in the memory card and writes new balance data, a balance memory that stores the balance data of the memory card read from the card reader/writer, and the sales amount of the registered sales product. is less than or equal to the balance data in the balance memory, balance memory updating means updates the stored content of the balance memory to data obtained by subtracting the sales amount from the balance data, and a balance data display automatically displays the balance data in the balance memory. and new balance data writing control means for writing the contents of the balance memory as new balance data to the memory card via the card reader/writer.