JP3103659B2 - Electronic cash register - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention
(Point of sale information management) It relates to an electronic cash register used as a terminal of a system.

[0002]

2. Description of the Related Art In a conventional electronic cash register, when registering a plurality of sales data of the same product, a method of inputting a code of a registered product immediately after the registered number is entered with a numeric key, There is a method of inputting a multiplication key by key immediately after entering the number of registrations by a key, and then inputting a code of a registered product.

[0003] However, in any of the methods, when the cashier commits an operation error in which the same number key is continuously pressed, that is, a so-called double hit, it is erroneous to input a product code without noticing the mistake. There was a problem of being registered with data.

Conventionally, there has been known a data input device which issues a buzzer alarm when the same numerical data is successively stored in a numerical register for temporarily storing numerical data input by a numerical key. Have been. Therefore, if this data input device is applied to a keyboard of an electronic cash register, an alarm is issued even if the cashier double-strikes and an operation error is noticed. There is an advantage that can be prevented beforehand.

[0005]

However, in the above data input device, if the cashier misses the warning and continues operating without noticing the mistake, the data is registered with wrong data, and the reliability is low. Not suitable for electronic cash registers.

[0006] Therefore, according to the present invention, when a double-hitting operation error in which the same numeric key is continuously pressed occurs, registration of a product can be prohibited, and erroneous data is registered due to the double-hitting operation error. It is an object of the present invention to provide an electronic cash register capable of preventing the occurrence of the problem.

[0007]

According to the present invention, there are provided a numeric key for inputting numerical data, a multiplication key for designating that the numerical data input by the numeric key is a multiplier, and a code of a product for sale. A code input means for inputting, and when a code of a sales product is input by the code input means after numerical data is input by the numeric key, it is determined whether or not the numerical data has the preset first number of digits. A first digit number judging means for judging, and, if the judging means judges that the numerical data is the first digit number, the merchandise sales data is registered with the numerical data as the number of merchandise to be sold. When the code of the sales product is input by the code input device after the multiplier data is input by the product registration means and the numeric key and the multiplication key, the multiplier data is set to the first number of digits set in advance. Different from Second determining whether the second digits or not that
And a second product registration for registering the product sales data using the multiplier data as the number of products for sale when the multiplier data is determined to be the second number of digits by the determining device. Means.

[0008]

In the present invention having such a configuration, for example, the first digit number used by the first digit number determining means is set to "1" and the second digit number used by the second digit number determining means is set to "1". Is set to “2”. Then, when inputting a one-digit number, the code of the product for sale is input by the code input means immediately after the numerical data is input by the numeric key. On the other hand, when inputting a two-digit number, a multiplication key is key-input immediately after numerical data is input by a numeric key, and a code of a sales product is input by code input means.

[0009] Here, when the cashier double-strikes to input a one-digit number, it means that two-digit numerical data is actually input. In this case, the cashier inputs the code without inputting the multiplication key. However, since the numerical data is two digits and does not match the first digit, the merchandise sales data is not registered and an error occurs.

If the cashier double-strokes to input a two-digit number, three-digit numerical data is actually input. In this case, the cashier inputs a code after keying the multiplication key, but since the numerical data is three digits and does not match the second digit number, the merchandise sales data is not registered and an error occurs.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the present invention is applied to a single electronic cash register will be described below with reference to the drawings.

FIG. 1 is a block diagram showing the structure of an electronic cash register. CPU (Central Processing Unit) 11
Is a ROM (Read Only Memory) 13 and a RAM (Random Access Memory) by a bus line 12
14, a clock circuit 15 for measuring time, a keyboard 16, a display 17, controllers 16 a, 17 a, 18 a of a printer 18, and an I / O port 19.

The CPU 11 constitutes a control section main body, and controls each section connected by the bus line 12 based on program data stored in the ROM 13 in advance.

As shown in FIG. 2, the keyboard 16 has a numeric key 21 for inputting numerical data, a multiplication key 22 for indicating that the numerical data input by the numeric key is a multiplier, and A plurality of code keys 23 as code input means, each of which has an assigned PLU (price look-up) code,
Various keys such as a subtotal key 24 for instructing the output of the subtotal amount, a total key 25 for instructing the output of the total amount, and a clear key 26 for instructing to clear the numerical data input by the numeral key 21 are provided.

The display 17 displays a product name and a sales price of a product registered for sale by key operation. Further, the subtotal amount or the total amount is displayed according to the key input of the subtotal key 24 or the total key 25.

The printer 18 prints on a receipt paper, a journal paper, or the like for printing detailed information of a sold product, total information of one transaction, and the like. Each time one transaction is completed, a receipt is issued.

The I / O port 19 is connected to the mode switch 11
Input signal from 0. The I / O port 19 outputs a drive signal for opening the drawer 111 to the drawer opening device 112.

The mode switch 110 is a switch for controlling power ON / OFF and selecting various business modes such as "registration", "payment", and "setting", and is operated by a key.

Incidentally, the "registration" is a task of registering the input merchandise sales data in the storage unit and printing and issuing a receipt. The “payment” is a task of outputting a report of sales data of a product stored in the storage unit by “registration” and clearing the contents of the storage unit. The "setting" is a task in which data necessary for tasks such as "registration" and "payment" are set in the storage unit in advance.

FIG. 3 shows a main memory area formed in the RAM 14. That is, the RAM 14
A PLU file 3 for setting and storing product information such as unit price and product name of each product for each PLU code, and accumulating sales points and sales amounts of each product for each PLU code.
1. a numeric register 32 for temporarily storing numerical data set by the numeric key 21; a multiplier memory 33 for storing a multiplier input by key input of the multiplication key 22;
An area 34 of a numeric flag F1 set to "1" in response to a key input of the numeric key 21, a multiplier flag F2 set to "1" in response to a key input of the multiplier key 22
Area 35 and the like are formed.

The CPU 11 is program-controlled to execute various key input processes shown in FIG. 4 in a state where the "registration" mode is selected by the mode switch 110.

That is, in the "registration" mode, when the numeric key 21 is input by a key, the CPU 11 causes
As shown in the figure, first, the number flag F1 of the flag area 34 is set.
Is set to “1”. Next, the numeric data input by the numeric key 21 is stored in the numeric register 32,
This key processing ends.

In the "registration" mode, the multiplication key 2
When the key 2 is input, the CPU 11 first checks whether the number flag F1 of the flag area 34 is set to "1" as shown in FIG. If the key is not set, the key input of the multiplication key 22 is regarded as an error.

When the numeral flag F1 is set to "1", the multiplication key 22 is inputted after the numeral is set by the numeral key 21, so that the multiplication flag F2 in the flag area 35 is input. Is set to “1”, and the contents of the number register 32 are transferred to the multiplier memory 33. Thereafter, the numerical register 32 is cleared, the numerical flag F1 is reset to "0", and the key processing is terminated.

When the PLU key 23 is pressed in the "registration" mode, the CPU 11 first proceeds to step ST1 as shown in FIG.
A check is made to see if the 4 number flag F1 is set to "1". If the number is set, the PLU key 23 is input after the number input by the number key 21, and the number of digits of the numerical data stored in the number register 32 (first number) is set.
Is checked to see if it is one digit (first digit number determining means). If the number of digits of the numerical data is two or more, the key input of the PLU key 23 is regarded as an error.

If the number of digits of the numerical data stored in the number register 32 is one, PLU registration processing is executed using the numerical data as the number of items for sale (first registration processing means).

In this PLU registration process, first, the PLU file 21 is searched with a PLU code preset in a key input PLU key 23, and product information such as a product name and a unit price corresponding to the PLU code is read. put out. Then, the sales price is calculated by multiplying the unit price by the sales quantity, and the sales quantity and the sales price are calculated in the PLU file 21 by the corresponding P.
It is added to the sales points and sales amount of the LU code.

The display 17 displays the product name and the sales price, and the printer 18 prints out the product name, unit price, sales quantity, sales price, and the like on receipts and journal paper.

Thereafter, the numerical register 32 is cleared, the numerical flag F1 is reset to "0", and the key processing is terminated.

If the number flag F1 is reset to "0" in ST1, the flag area 3 is set as ST2.
It is checked whether the multiplier flag F2 of 5 is set to "1". When set, the PLU key 23 is input after the multiplier has been input using the numeric key 21 and the multiplication key 22, so the number of digits of the multiplier data stored in the multiplier memory 33 (number of digits) (2 digits number) is checked to see if it is 2 digits (second digit number determining means). If the number of digits of the numerical data is one or three or more, the key input of the PLU key 23 is regarded as an error.

If the number of digits of the multiplier data stored in the multiplier memory 33 is two, the PLU registration process is executed using the multiplier data as the number of products for sale (second product registration means). Thereafter, the multiplier memory 33 is cleared and the multiplier flag F2 is reset to "0", and this key processing ends.

If the multiplier flag F2 has been reset to "0" in ST2, the PLU code has been keyed in without inputting the sales quantity of the sales product, so the data "1" is used as the sales quantity. The PLU registration process is executed. Thereafter, this key processing ends.

In the present embodiment configured as described above, the key operation for merchandise registration differs depending on whether the number of registered merchandise is one digit or two digits. That is, when the registered number of merchandise is one digit, the registered number is set by the number key 21 and the PLU code of the merchandise is input by the PLU key 23. By doing so, the product sales data for the registered number of sales products is subjected to PLU registration processing.

In this case, even if the registered number is entered by the numeric key 21 and the multiplication key 22 is entered by a key and the corresponding PLU key 23 is subsequently entered by a key, the PLU registration process is not executed. An error occurs.

When the registered number is two digits, the registered number is set by the number key 21 and the multiplication key 22 is input by a key. Then, the PLU code of the sales product is input by the PLU key 23. I do. By doing so, the product sales data for the registered number of sales products is subjected to PLU registration processing.

In this case, after the registered number is set by the number input key 21, the key input of the multiplication key 22 is omitted, and the corresponding PLU key 23 is immediately input by keying.
An error occurs without executing the PLU registration process.

An error occurs when three digits are set as the number of registered products for sale. However, it is unlikely that the number of registered products will become three digits in a general store, and an error does not cause any particular problem. .

As described above, according to the present embodiment, if the number of items to be sold is one digit, an error occurs unless the PLU key 23 is key-input immediately after the registered number is entered with the numeric key 21. Becomes On the other hand, if the registered number of the sold products is two digits, the multiplication key 22 is key-input immediately after the registered number is input with the number key 21, and if the PLU key 23 is not key-input subsequently, an error occurs. Become.

Therefore, if the cashier makes a double-strike operation error with the number of the registered number when the number of items to be sold is one, the two-digit numerical value is input, An error occurs because the PLU key 23 is pressed after the numeral.

If the cashier makes a double-stroke operation error with the registered number when the number of items to be sold is two digits, a three-digit numerical value is entered as the number of registered items. Becomes

Therefore, if a double-hitting operation error is committed when the number of items to be sold is registered, an error always occurs and the PLU registration process is prohibited. Can be prevented from being registered.

In the above embodiment, when the number of registrations is one, the key input of the multiplication key 22 is omitted, and the number of registrations is two.
In the case of digits, the key input of the multiplication key 22 is forcibly performed. Conversely, when the number of registrations is one, the key input of the multiplication key 22 is forcibly performed. When the number of registrations is two, the multiplication is performed. The key input of the key 22 may be omitted.

Also, the number of digits of the numerical data is determined. If the number of digits is the first digit, only the input of the product code is made valid and the key input of the multiplication key is regarded as an error. In this case, an error may occur if a product code is not input after the multiplication key.

In addition, it goes without saying that various modifications can be made without departing from the spirit of the present invention, such as applying the present invention to a POS terminal.

[0045]

As described above in detail, according to the present invention, if a double hit operation error occurs in which the same numeric key is continuously pressed, registration of the product can be prohibited, and the double hit operation error can be prevented. Therefore, it is possible to provide an electronic cash register which can prevent erroneous data from being registered.

[Brief description of the drawings]

FIG. 1 is a block diagram of an electronic cash register according to an embodiment of the present invention.

FIG. 2 is an exemplary key layout of the keyboard in the embodiment.

FIG. 3 is a main memory configuration diagram of a RAM in the embodiment.

FIG. 4 is a flowchart showing main key processing of the CPU in the embodiment.

[Explanation of symbols]

11 CPU, 16 keyboard, 21 numeric key, 2
2 Multiplication key, 23 PLU key, 31 PLU file, 32 Numeric register, 33 Multiplier memory.

Continuation of front page (58) Field surveyed (Int.Cl. ⁷ , DB name) G07G 1/00-5/00

Claims (1)

(57) [Claims] 1. A numeric key for inputting numerical data, a multiplication key for indicating that the numerical data input by the numeric key is a multiplier, code input means for inputting a code of a product for sale, When the code of the sales product is inputted by the code input means after the numerical data is inputted by the numeric key, a first digit for judging whether or not the numerical data is a preset first digit number is determined. Digit number determining means; and first merchandise registration for registering the merchandise sales data with the numerical data as the number of merchandise to be sold when the numerical data is judged to be the first number of digits. Means, after the multiplier data is input by the numeric key and the multiplication key, when the code of the sales product is input by the code input means, the multiplier data is set to the first preset Second determining whether a different second number of digits of the number
A number of digits determining means, and if the determining means determines that the multiplier data has the second number of digits, a second product for registering the product sales data with the multiplier data as the number of sold products An electronic cash register comprising registration means.