JPS62102391A - Electronic type cash register - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention also applies to electronic key registers (hereinafter referred to as E
In particular, the present invention relates to ECR that can perform discount processing for product registration.

Summary of the Invention This invention provides an ECR that performs discount processing for product registration, and when a discount processing is commanded, each product is discounted according to the registered price of each product stored in a buffing means. By calculating the individual discount amount on a proportional basis and subtracting the calculated individual discount amount for each product from the corresponding area of the sales amount storage means, the discount processing for each product is performed and accurate This allows sales data to be managed.

BACKGROUND OF THE INVENTION Some conventional ECRs have a discount function added to the total purchase amount. In this type of ECR, a discount is calculated for the total purchase amount of the transaction based on the discount rate or discount amount entered from the keyboard, and the discounted purchase total is displayed on the display and printed on the receipt. I was trying to do that.

Note that the discount processing includes: ■ A case in which a discount is calculated based on the discount rate entered for the total purchase amount, and ■ A case in which a discount calculation is performed based on the discount amount entered for the total purchase amount. However, in this specification, in order to distinguish between the two, case (2) will be particularly referred to as discount processing.

Problems to be Solved by the Invention As mentioned above, the discount function in conventional ECRs simply calculates discounts for the total discount. The discount amount was not reflected in the management memory. Therefore, there is a problem in that an error occurs between the sales data stored in the departmental sales management memory and the actual sales amount of the product by the amount of the discount amount.

This invention was made in order to solve the problems of the conventional ones as described above, and the purpose is to provide an ECR that can perform discount processing for each product and manage accurate sales data. shall be.

Means for Solving the Problems The ECR according to the present invention includes a product data input means for inputting data related to products, and a registered amount of each product registered by operating the product data input means for one transaction. Buffer means for temporarily storing, total sales amount storage means for cumulatively storing the total sales amount for each registered product through all transactions, and discount processing command means for instructing discount processing. and a value for calculating the individual discount amount of each product in a proportionate manner according to the registered amount of each product stored in the buffing means in response to the command for discount processing by the discount processing command means. The apparatus includes a discount amount calculation means and a subtraction means for subtracting the individual discount amount of each product calculated by the discount amount calculation means from the corresponding area of the sales amount storage means.

In this invention, when discount processing is commanded by the discount processing command means, the discount amount calculation means proportionally calculates the individual discount amount of each product according to the registered price of each product stored in the buffer means. By performing the calculation in an allocation manner and subtracting the calculation result from the corresponding area of the sales amount storage means, sales data including the discount amount is stored in the sales amount storage means.

Embodiment FIG. 2 is a schematic block diagram showing an electric circuit portion of an ECR according to an embodiment of the present invention. In the figure, CPU
1, a keyboard 21, display 3, and printer 4 are connected. In addition, CPU1 has ROM5 and RAM6.
I will continue to use it. The ROM 5 stores an operation program as shown in FIG. 1, for example. Also, RAM
6 stores various data necessary for data processing by the CPU 1, specifically, data such as that shown in FIG. 4 is stored.

FIG. 3 is a key arrangement diagram of the keyboard 2 shown in FIG. 2. In the figure, the keyboard 2 is provided with a mode key 21 for switching the operation mode of the ECR, a number key 22 for inputting numerical data, and a department key 23 for inputting the department code of the product. It will be done. The keyboard 2 also includes a discount key 24, which is an example of a discount processing command means, and a subtotal key 25, as various function keys.
A deposit/total key 26 is provided. The discount key 24 is used to command discount processing when pressed.

The subtotal key 25 is a key for commanding intermediate display of the total purchase amount in one transaction.

The deposit/account key 26 is a key for instructing the closing operation of one transaction.

FIG. 4 is an illustrative diagram showing various storage areas in the RAM 6 shown in FIG. 2. In addition, in this Figure 4, RAM6
Only the areas of particular interest to this invention are highlighted and shown. As shown in the figure, the RAM 6 stores a sales buffer counter 61, a sales buffer 62, a purchase total area 63, a purchase discount area 64, and a loop counter 6.
5, product discount cumulative area 66, and input data area 6
7 and a departmental sales management area 68. Sales buffer counter 61 is used as an address counter for sales buffer 62. The sales buffer 62 serving as a buffer means is used to temporarily store the department code and registered price of a product input in one transaction.

The purchase total area 63 is for storing the total purchase amount in one transaction. The purchase discount area 64 is for storing the total discount amount for the total purchase amount. The loop counter 65 is used as an address counter for the sales buffer 62 during discount processing. The product discount cumulative area 66 is used to cumulatively store discount amounts calculated for each product. The input data area 67 is for temporarily storing function key codes and number data input from the keyboard 2. The departmental sales management area 68 is for cumulatively storing the total sales amount of each product for each department through all transactions.

Before explaining the specific operation of the above embodiment, an example of key operations required to execute the discount process will be explained with reference to FIG. First, as shown in FIG. 5(a), the registered amount of the product is input using the number keys 22, and the department key 23 of the department to which the product belongs is pressed. Next, the fifth
As shown in Figure (b), the subtotal key 25 is pressed. Here, the total registered amount before discounting is displayed and printed on the display 3 and printer 4. Next, set number key 2
2, the discount rate is input and the discount key 24 is pressed. By pressing the discount key 24, a command for discount processing is input, so that the CPU executes the discount processing that is a feature of this embodiment. Subsequently, as shown in FIG. 5(C), when the deposit/account key 26 is pressed, the CPU 1 performs a closing operation and one transaction in that ECR is completed.

FIG. 1 is a flowchart for explaining the operation of CPLJl shown in FIG. 2. The operation of the above embodiment will be explained below with reference to FIG.

■ Location]! 1! At the start, the work area (areas other than the departmental sales management area 68) in the RAM 6 is initialized (step 81).

■ Next, after inputting the σ recorded amount using the number key 22, when the department key 23 is pressed, the department code and the registered amount are set in the input data area 67 (step 82.3).
3).

■ The data stored in the input data area 67 is set in the sales buffer 62 (step S4). At this time,
Which area of the sales buffer 762 is to be set is determined by the value of the sales buffer counter 61. Note that since the sales buffer counter 61 is initially initialized in step S1, data will be hit into the sales buffer 762 from its first area.

■ Update the sales buffer counter 61 to register the next product (Step S5), and then update the registered amount (stored in the input data area 67) in the purchase total area 6.
4 (step S6), and also added to the departmental sales management area 68 corresponding to the input department code (step 87).

■ Displays and prints the department code and registration amount of the entered product, and waits for the next keystroke (step 38.89>. If the next keystroke is to register the product again, the above ■ to ■ The process is repeated, and if it is the subtotal key 25, the current purchase total amount (contents of the purchase total area 63) is displayed (steps 810 to 513).

■ If the key entered in above ■ is discount key 24,
A discount amount is calculated for the total purchase amount, and the calculation result is set in the purchase discount area 64 (step S14).
．． 515). Here, the calculation of the discount amount for the total purchase amount is performed using the following equation (1).

Discount 1 amount - Total purchase amount x Discount rate ... (1) -
However, the numbers below the decimal point are rounded down.

Next, the total purchase amount after the discount is displayed, and the total purchase amount before the discount and the discount amount are printed (step 8).
16-518).

(2) Next, processing for proportionally distributing the discount amount to each department, which is a feature of this embodiment, is performed.

First, the loop counter 65 and the product discount cumulative area 6
6 is cleared, the department code and registered amount in the sales buffer 62 corresponding to the loop counter 65 are read out.
The discount amount for this read registered amount is calculated (
Steps 819-521). Here, the sales buffer 62
The discount amount for the registered amount read from is calculated using the following equation (2).

Discount amount - Registration amount x Discount rate (2) However, decimal places are rounded down.

■ Next, sell the discount area calculated above, and sell by department 1 corresponding to the department code read from the F buffer 762.
- Subtract from the management area 68 (step 322).

■ Furthermore, this discount amount is added to the product discount cumulative area 66 in order to calculate the error amount described later (step 8).
23>.

0 Next, in step 324, the value of the loop counter 65 is updated, and in step 325, it is determined whether the value of the loop counter 65 and the value of the sales buffer counter 61 match. This process is repeated for each product sales record stored in the sales buffer counter 62. After that, the discount amount (purchase discount area 6
4) and the cumulative discount amount calculated for each product (stored in the product discount cumulative area 66).

) (step 826), -! The error amount is subtracted from the departmental sales management area 68 corresponding to the department code stored in the first area of the sales buffer 62 (step 527). With this, it is possible to correct the amount of error caused by rounding down the decimal places. The error amount can be corrected using the sales buffer 62.
may be performed for the department that was last stored in
Alternatively, the transaction may be made to the department with the largest registered amount in that transaction.

After the OR, when the deposit/cash key 26 is pressed to complete the transaction, payment processing is performed and a receipt is issued (
Step 829~$31).

For reference in understanding the operation, FIG. 6 shows an example of the correlation between key operations, printing on receipts, and update data to the departmental sales management area.

In the above embodiment, an ECR was explained in which the discount process is performed based on the discount rate input from the keyboard, but in this invention, the total discount amount is input from the keyboard and the value is calculated based on the total discount rate. E that performs pull processing
It can also be applied to CR. In this case, the discount rate may be obtained by dividing the total purchase amount by the total discount amount input from the keyboard, and based on this discount rate, the same discount process as in FIG. 1 above may be performed. Therefore, it is easily possible to have both the function of performing discount processing based on the discount rate input from the keyboard and the function of performing discount processing based on the discount amount input from the keyboard.

Effects of the Invention As described above, according to the present invention, the discount amount for each registered product is calculated in a proportionate manner and subtracted from the corresponding area of the sales amount storage means. Sales data matches the actual total sales amount, allowing accurate sales data management.

[Brief explanation of drawings]

FIG. 1 is a flowchart for explaining the operation of an embodiment of the present invention. Figure 2 shows E of one embodiment of this invention.
It is a schematic block diagram showing the electric circuit part in CH. FIG. 3 is a key arrangement diagram of the keyboard 2 shown in FIG. 2. FIG. 4 is an illustrative diagram showing a storage area included in the RAM 6 shown in FIG. 2. FIG. 5 is a diagram showing an example of key operations on the keyboard 2 performed to execute the discount process. FIG. 6 is a diagram showing an example of the correlation between key operations, printing on a receipt, and update data to the departmental sales management area. In the figure, 1 is a CPU, 2 is a keyboard, 3 is a display, 4 is a printer, 5 is a ROM, and 6 is a discount key RΔM124. (Two idiots) Figure 4 (Figure of Memouriai) (C) Deyo 2 part ya bolt [==5=! ko=koE)"<
a) “Kyo: Ka1ryo1ku・Ria [==jkoJ=immersion0−”(e) Ledekawanta [2222222to65% Figure 6 (Insert hit 1

Claims (4)

[Claims] (1) An electronic cash register that can perform discount processing for product registration, including a product data input means for inputting data related to the product, and a method for registering each product registered by operating the product data input means. A buffer means for temporarily storing the registered amount for one transaction, a total sales amount storage means for cumulatively storing the total sales amount for each registered product through all transactions, and a means for instructing discount processing. Discount processing command means, in response to the discount processing being commanded by the discount processing command means, calculates an individual discount amount for each product according to the registered price of each product stored in the buffer means. An electronic cash register comprising: a discount amount calculating means for calculating proportionately; and a subtracting means for subtracting the individual discount amount for each product calculated by the discount amount calculating means from a corresponding area of the sales amount storage means. (2) The discount amount calculating means calculates an individual discount amount for each product by multiplying the registered price of each product stored in the buffer means by the discount rate input from the product data input means. An electronic cash register according to claim 1, characterized in that: (3) The discount amount calculation means calculates a discount rate by dividing the registered total price of all products stored in the buffer means by the total discount input from the product data input means. and a multiplication means for calculating an individual discount amount for each product by multiplying the registered price of each product stored in the buffer means by the discount rate calculated by the discount rate calculation means. An electronic cash register as described in Scope 1. (4) An error calculation means for calculating an error caused by the discount calculation by the discount calculation means, and one of the corresponding areas of the total sales amount storage means based on the calculation result of the error calculation means. The electronic cash register according to any one of claims 1 to 3, further comprising a correction means for correcting the total sales amount.