JPH0962939A - Data processor for merchandise sales register - Google Patents

Abstract

PROBLEM TO BE SOLVED: To execute sales register processing by automatically updating the unit price of bargain objective merchandise when a bargain period comes while miniaturizing a PLU table. SOLUTION: This processor is provided with the PLU table presetting unit price data and a unit price changing table number of the pertinent merchandise by the merchandise code and a unit price changing table presetting period specifying data and unit price changing data by the table number. When a merchandise code is inputted, the pertinent piece of unit price data and a unit price changing table number are called from the PLU table to call period specifying data and unit price changing data corresponding to the unit price changing table number from the unit price changing table. Then whether to change the unit price or not is judged based on period specifying data. At the time of changing the unit price, proceeds data is register-processed after changing the unit price and at the time of not changing the unit price, proceeds data is register-processed based on unit-price data called from the PLU table.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a product sales registration data processing device such as an electronic cash register or a POS (point of sale information management) terminal. The present invention relates to an improvement of a product sales registration data processing device that can be modified to perform sales registration processing.

[0002]

2. Description of the Related Art Conventionally, as a product sales registration data processing device capable of automatically changing the unit price of a product for special sale during the special sale period and performing sales registration processing, the PLU table shows the product code of each product for each product code. Normal unit price data, special sale unit price data, and data designating a special sale period are preset, and when the product code of the sale product is input by the input means, the PLU table is searched and the data corresponding to the input product code is called. . Then, based on the data that specifies the special sale period, it is determined whether or not the current time is the special sale period.If it is the special sale period, the sales data of the sale item is registered based on the special sale unit price data. It is known that the sales data of the sales product is registered based on the data.

[0003]

However, in the conventional product sales registration data processing device, the PLU table must be preset with the normal unit price data, the special sale unit price data, and the data designating the special sale period for each product. However, in a store that handles a large number of products, the PLU table becomes large in size, and there are problems such as an increase in price due to an increase in storage capacity and a decrease in processing efficiency due to an increase in table search time.

Therefore, the present invention is intended to provide a product sales registration data processing device which can reduce the size of the PLU table and automatically change the unit price of the product for special sale during the special sale period to perform sales registration processing. is there.

[0005]

The invention according to claim 1 of the present application is a PLU table in which unit price data and unit price change table number of a corresponding product are preset for each product code, and a unit price change period for each table number. A unit price change table that presets the period designation data for designating the unit price and unit price change amount or unit price change rate unit price change data, and a product code input means are provided, and the product code of the sale product is input by the input means. , The PLU table is searched to call the unit price data and the unit price change table number corresponding to the input product code, and then the unit price change table is searched and the period designation data corresponding to the unit price change table number called from the PLU table. And the unit price change data are called, and the unit price is changed based on the period specification data called from the unit price change table. If it is determined whether or not to change the unit price, the unit price data called from the PLU table is changed based on the unit price change data called from the unit price change table, and then the sale price of the sold product is changed based on the changed unit price data. The sales data is registered, and when the unit price is not changed, the sales data of the sale item is registered based on the unit price data called from the PLU table.

The invention corresponding to claim 2 of the present application is the above P
In addition to the LU table, the unit price change table, and the input means for the product code, a clock means for measuring the date or time,
When the product code of the sold product is entered by the input means,
The PLU table is searched by the product code and the corresponding unit price data and unit price change table number are called, and the unit price change table is searched by the unit price change table number called by the PLU table search unit to correspond. A unit price change table search means for calling the period designation data and the unit price change data, and a determination means for determining whether or not the unit price is changed from the period designation data called by the unit price change table search means and the time count data by the time count means. When the unit price is changed by this judging means, the unit price data called from the PLU table is changed based on the unit price change data called from the unit price change table, and then the sales data of the sale product is based on the changed unit price data. If the registration process is performed and the unit price is not changed, PL
It is provided with a sales registration processing means for registering the sales data of the sales product based on the unit price data called from the U table.

The invention corresponding to claim 3 of the present application is the above P
In addition to the LU table, unit price change table and product code input means, the PLU table is searched to call the unit price data and the unit price change table number corresponding to the product code input by the input means, and then the unit price change table is opened. The unit price is determined based on the period specification data and the unit price change data corresponding to the unit price change table number retrieved and retrieved from the PLU table, and whether or not the unit price is changed based on the period specification data retrieved from the unit price change table. When making a change, the unit price data called from the PLU table is changed based on the unit price change data called from the unit price change table and the changed unit price data is responded. When the unit price is not changed, the unit price data is changed from the PLU table. The unit price search processing means that responds to the called unit price data and the product code of the sold product by the input means When the unit price search processing means is activated, when the unit price search processing means responds to the unit price data, a main processing means for registering the sales data of the sale item based on the unit price data is provided. is there.

The invention corresponding to claim 4 of the present application is the above P.
In addition to the LU table, unit price change table, and product code input means, the PLU table is searched to call the unit price data and unit price change table number corresponding to the product code input by the input means, and then the unit price change table is opened. The unit price is determined by calling the period designation data and the unit price change data corresponding to the unit price change table number retrieved from the PLU table and determining whether or not to change the unit price based on the period designation data that called the unit price change table. When making a change, the unit price data called from the PLU table is added with the unit price change data called from the unit price change table to respond, and when the unit price is not changed, the unit price data called from the PLU table is returned as a unit price search. When the product code of the sale product is input by the processing means and the input means, the unit price search processing means is started. , When there is a response of the unit price data from this unit price search processing means, if the unit price change data is added to the unit price data, the unit price data is changed with the unit price change data, and the unit price data of the sale item is changed based on the changed unit price data. It is provided with main processing means for registering the sales data and, if the unit price change data is not added, for registering the sales data of the sale item based on the unit price data.

In the inventions according to claims 1 and 2, when the product code of the sold product is input by the input means, first, the unit price data and the unit price change table number corresponding to the input product code are called from the PLU table. It Next, the period designation data and the unit price change data corresponding to the unit price change table number are called from the unit price change table. Here, when it is determined that the unit price is changed by the period designation data called from the unit price change table, the unit price data called from the PLU table is changed based on the unit price change data called from the unit price change table, and the change is made. The sales data of the sale item is registered based on the unit price data later. On the other hand, when it is determined that the unit price is not changed, the sales data of the sale item is registered based on the unit price data called from the PLU table.

Further, in the invention according to claim 3 of the present application, when the product code of the sold product is inputted by the input means, the unit price search processing means is activated. And first, PLU
The unit price data corresponding to the input product code and the unit price change table number are called from the table. Next, the period designation data and the unit price change data corresponding to the unit price change table number are called from the unit price change table. Here, when changing the unit price based on the period designation data called from the unit price change table, the unit price data called from the PLU table is changed based on the unit price change data called from the unit price change table, and the changed unit price The data is responded to the main processing means. On the other hand, when the unit price is not changed, the unit price data called from the PLU table is returned to the main processing means. In the main processing means, the sales data of the sale item is registered based on the unit price data returned from the unit price search processing means.

Further, in the invention according to claim 4 of the present application, when the product code of the sold product is inputted by the input means, the unit price search processing means is activated. And first, PLU
The unit price data corresponding to the input product code and the unit price change table number are called from the table. Next, the period designation data and the unit price change data corresponding to the unit price change table number are called from the unit price change table. When the unit price is changed based on the period designation data called from the unit price change table, the unit price data called from the PLU table and the unit price change data called from the unit price change table are returned to the main processing means. On the other hand, when the unit price is not changed, the unit price data called from the PLU table is returned to the main processing means. In the main processing means, if the unit price change data is added to the unit price data returned from the unit price search processing means, after the unit price data is changed by the unit price change data, the sale item based on the changed unit price data The sales data of is registered,
When the unit price change data is not added, the sales data of the sales product is registered based on the unit price data.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments in which the present invention is applied to a POS terminal will be described below with reference to the drawings.
First, FIGS. 1 to 5 for the first embodiment of the present invention.
This will be described with reference to FIG. FIG. 1 is a block diagram showing a main configuration of a POS terminal, and a CPU (central processing unit) 1 functions as a control unit main body. Then, a ROM (Read Only Memory) 3 is connected to the CPU 1 via a bus line 2.
And a memory unit of a RAM (random access memory) 4, a clock circuit 5 as a time measuring means for measuring the date and time,
A communication interface 6 for transmitting / receiving data to / from a line-connected host computer, an I / O port 7, a keyboard controller 8, a display controller 9, a printer controller 10, a scanner controller 11 and the like are connected to connect the POS terminal. It constitutes a control circuit.

A signal from the mode switch 12 is input to the I / O port 7. Further, a drive signal is sent to a drawer opening device 13 for opening a drawer (not shown) for accommodating cash or the like. Here, the mode switch 12 is used for "registration", "check",
This is a switch for selecting various tasks such as “payment” and “setting”. By the way, "registration" is the business of registering the sales data of the sales product in the storage unit and issuing a receipt. "Inspection" is the total sales data of each sales product accumulated in the storage unit by "registration". This is a task to output as an inspection report, and "settlement" is a task to output the total sales data of each sales product accumulated in the storage section as a settlement report as in "inspection", and then clear the contents of the storage section. Yes, "setting" is a job of previously setting data necessary for performing a job such as "registration" in the storage unit.

The keyboard controller 8 is connected to a keyboard 14 dedicated to a POS terminal, which is provided with various keys such as a numeral key, a PLU key, a subtotal key, a deposit / current total key, a clear key, and a cancel key. There is. The display controller 9 is connected with a display 15 for displaying the product code, price, etc. of the registered product. Two types of display 15 are provided, one for the operator and one for the customer.

A receipt / journal printer 16 for printing on receipt paper and journal paper is connected to the printer controller 10. The printed receipt paper is cut for each transaction and discharged as a receipt from a receipt issuing port (not shown), and the journal paper is wound inside the POS terminal. The scanner controller 11 is connected to a bar code scanner 17 that optically reads a bar code attached to each product, and a bar code indicating the product code is printed or attached to each product. Here, the bar code scanner 17
The keyboard 14 constitutes a product code input means.

Fixed data such as a program executed by the CPU 1 is stored in the ROM 3 in advance.
Here, in this embodiment, as shown in FIG. 2, in particular, a sales registration business program (main routine) P1 started in the "registration" mode and a unit price search processing program properly started by the sales registration business program P1. (Subroutine) P2.

The RAM 4 is provided with a storage unit for setting data, a storage unit for sales data, etc., the power source is backed up by a battery, and the data can be stably held even in the event of a power failure. Here, in this embodiment, as shown in FIG. 3 in particular, unit price data and a discount number as a unit price change table number are preset in correspondence with the product code of each product, and the number of sales and the amount of sales are set. A unit price change that presets a PLU table 41 having an area for totaling, period designation data designating a unit price change period of a discount start date and a discount end date corresponding to the discount number, and unit price change data of a discount rate. The table 42 is formed.

Therefore, P in the "setting" mode is set in advance.
By the LU table setting process, the PLU table 4
In 1, the unit price data and the discount number are set corresponding to the product code of each product. Here, the discount number is the same for all discount target products having the same three elements of the discount start date, the discount end date, and the discount rate, and the other products are allocated in order from "001". It should be noted that the discount number is “000” for products that are not subject to the discount. Also, by the unit price change table setting process in the "setting" mode, three elements of the corresponding discount start date, discount end date, and discount rate are set in correspondence with the discount number assigned to each discount target product. deep. The PLU table 41 and the unit price change table 42 may be created by a host computer and downloaded onto the RAM 4 via the communication interface 6.

Now, the CPU 1 has a mode switch 1
When the "registration" mode is selected by 2, the processing of the sales registration business program P1 shown in the flowchart of FIG. 4 is periodically executed. That is, first, as ST (step) 1, it is determined whether or not the product code of the sold product is input by the input means. Then, if it has not been input, the processing of the sales registration business program P1 of this time is ended, and the process proceeds to the next program processing.

When it is detected in ST1 that the product code of the product to be sold is input by the bar code scanning by the bar code scanner 17 or the numeric keypad and PLU key of the keyboard 14, the unit price search processing program P2 is called as ST2. To do.

As a result, the CPU 11 starts the processing of the unit price search processing program P2 shown in the flowchart of FIG.
That is, first, the PLU table 41 is searched by using the product code input in ST21 as a search key. When the same product code as the search key is detected from the PLU table 41, the unit price data and the discount number corresponding to the product code are called and acquired (PLU table search means).

Next, in ST22, it is determined whether the discount number acquired from the PLU table 41 is "000". In the case of “000”, since the sales product is not a discount target product, if the unit price data acquired from the PLU table 41 is returned as the sales unit price of the sales product, the process of the sales registration business program P1 is performed. Return to.

If the discount number is other than "000" in ST22, the sale item is a discount target item.
The unit price change table 42 is searched with this discount number as a search key. Then, when the same discount number as the search key is detected from the unit price change table 42, each data of the discount start date, the discount end date and the discount rate corresponding to the discount number is called and acquired (unit price change table search means). .

Next, in ST24, the current date measured by the clock circuit 5 is read, and it is determined whether this current date is within the discount period from the discount start date to the discount end date acquired from the unit price change table 42. Judge (determination means).

Since the unit price is changed within the discount period, the unit price data acquired from the PLU table 41 in ST25 is discounted by the following formula (1) with the discount rate acquired from the unit price change table 42, When the discounted unit price is returned as the sales unit price, the process returns to the sales registration business program P1. Sales unit price = Unit price− (Unit price × Discount rate) (1) On the other hand, since the unit price is not changed outside the discount period, if the unit price data acquired from the PLU table 41 is returned as the sales unit price, Returning to the processing of the sales registration business program P1.

If the corresponding product code cannot be detected by the search of the PLU table 41, or if the corresponding discount number cannot be detected by the search of the unit price change table 42, an error response is returned and the sales The process returns to the registration business program P1.

When a response is generated by executing the unit price search processing program P2, the CPU 11 restarts the processing of the sales registration business program P1. Then, in ST3, it is determined whether the response by the execution of the unit price search processing program P2 is a response of sales unit price data or an error response.

Here, in the case of the response of the sales unit price data, in ST4, the sales unit price data is the sales amount of the sales product, and "1" is the sales point, and the sales corresponding to the input product code of the PLU table 41. The sales points and the sales amount are added and registered in the points area and the sales amount area, respectively (sales registration processing means).

Further, at ST5, the product code, the number of sales points, the sales amount, etc. are displayed on the display unit 15, and
After printing on the receipt paper and the journal paper by the printer 16, the processing of the sales registration business program P1 of this time is ended, and the process proceeds to the next program processing. Note that ST
When the error response is detected in 3, if the product registration prohibition process such as displaying a comment indicating that the product registration is impossible on the display unit 15 is performed, the process of the sales registration business program P1 of this time is terminated, Move on to next program processing.

In the first embodiment having such a configuration, in the "registration" mode, the keyboard 14 or the bar code scanner 17 is operated to input the product code of the sales product purchased by the customer. 41
The unit price data corresponding to the input product code and the discount number are called from. If the discount number is other than “000”, that is, if the sale item is a discount item,
Next, each data of the discount start date, the discount end date, and the discount rate corresponding to the discount number is called from the unit price change table 42. Then, it is determined whether or not the present date counted by the clock circuit 5 is within the discount period from the discount start date to the discount end date. Here, if it is outside the discount period, PLU
The sales data of the sale product is registered based on the unit price data called from the table 41. On the other hand, within the discount period, after the unit price data called from the PLU table 41 is discounted at the discount rate called from the unit price change table 42, the sale price of the sale product is calculated based on the discounted unit price data. Sales data is registered.

As described above, according to the POS terminal of the first embodiment, the unit price of the discount target product is automatically discounted during the discount period and the sales registration process is performed. Therefore, the operator sells the discount target product as the discount target product. It is possible to perform the registration operation without paying any attention to whether or not there is the discount period.

In this case, the unit price data at the time of normal sale and the corresponding discount number may be preset in the PLU table 41, and the normal unit price data, the special sale unit price data, and the data for designating the special sale period are stored. The PLU table 41 can be miniaturized as compared with the conventional preset. As a result, even in stores handling a large number of products, P
It is possible to prevent the LU table 41 from increasing in size.

Further, although the unit price change table 42 is newly provided in the first embodiment, one record of the unit price change table 42 can be shared for products having a common discount period and discount rate. Generally, in a store, a special sale period of, for example, one week is set, and during that period, many products are sold at a discount of 10 or 20. Therefore, since many discount target products have the same discount period and discount rate, the number of records in the unit price change table 42 can be generally smaller than the number of items of the discount target products. Therefore, the PLU
Since the total storage capacity of the table 41 and the unit price change table 42 is smaller than the storage capacity of the conventional PLU table, the price can be reduced. Further, in the case of products not subject to discount, the unit sales price can be obtained only by searching the PLU table 41, so that the search time can be shortened by downsizing the PLU table 41. Therefore, it is possible to improve the processing efficiency as a whole.

Although the discount rate is used as the unit price change data in the first embodiment, the discount rate may be used. In this case, the unit price search processing program P shown in FIG.
The arithmetic expression of ST25 of 2 may be changed to the following expression (2). Sales unit price = unit price-discount amount (2) By the way, when the discount amount is used as the unit price change data as described above, it is necessary to change the unit price search processing program P2 shown in FIG. However, in the first embodiment, it is not necessary to change the sales registration business program P1 which is the main routine.

As described above, in the first embodiment, the PLU table 41 is searched to call the unit price data and the discount number corresponding to the input product code, and then the unit price change table 42 is searched. The period designation data corresponding to the discount number and the unit price change data are called, and it is determined whether the unit price is changed based on the period designation data. When the unit price is changed, the unit price data called from the PLU table 41 is used. The unit price change data is changed based on the unit price change data called from the unit price change table 42, and the changed unit price data is returned. If the unit price is not changed, the PLU table 41 is used.
The unit price search process that responds to the unit price data called from is a subroutine. When the product code of the sale product is input, the unit price search process is started. If there is a response of the unit price data from this unit price search process, the unit price data Since the main processing is the sales registration operation for registering the sales data of the sales product based on the above, only the unit price search processing program P2 needs to be changed even if the unit price changing method is changed, and the sales registration operation program P1 needs to be changed. Since it does not exist, it is easy to modify the program for changing the unit price changing method.

However, in the first embodiment, in the processing of the sales registration business program P1, it is completely unknown whether the response unit price by the unit price search process is the discounted unit price or the undiscounted unit price. Even for discounted products, the discount amount cannot be printed on receipts. Therefore, a second embodiment in which a discount amount can be printed in receipt in the case of discounted products will be described with reference to FIGS. 1 to 3 and FIGS. 6 and 7. It should be noted that FIGS. 1 to 3 have already been described in the first embodiment, so description thereof will be omitted here.

FIG. 6 is a flow chart showing the processing of the sales registration business program P1. That is, when the "registration" mode is selected by the mode switch 12 in the CPU 1,
In particular, the processing of the sales registration business program P1 shown in the flowchart of FIG. 6 is periodically executed, and first, at ST6, it is determined whether or not the product code of the sold product is input by the input means. Then, if it has not been input, the processing of the sales registration business program P1 of this time is ended, and the process proceeds to the next program processing.

When it is detected in ST6 that the product code of the product to be sold has been input by the bar code scanning by the bar code scanner 17 or the numeric keypad and PLU key of the keyboard 14, the unit price search processing program P2 is called in ST7. To do.

As a result, the CPU 11 starts the processing of the unit price search processing program P2 shown in the flowchart of FIG.
That is, first, the PLU table 41 is searched by using the product code input in ST71 as a search key. When the same product code as the search key is detected from the PLU table 41, the unit price data and the discount number corresponding to the product code are called and acquired.

Next, in ST72, it is determined whether the discount number acquired from the PLU table 41 is "000". In the case of “000”, the sale item is not a discount target item. Therefore, if the unit price data obtained from the PLU table 41 is returned, the process returns to the sales registration business program P1.

If the discount number is other than "000" in ST72, the sale item is a discount target item.
The unit price change table 42 is searched with this discount number as a search key. When the same discount number as the search key is detected from the unit price change table 42, the discount start date, the discount end date, and the discount rate data corresponding to the discount number are called and acquired.

Next, in ST74, the current date counted by the clock circuit 5 is read, and it is determined whether this current date is within the discount period from the discount start date to the discount end date acquired from the unit price change table 42. to decide.

Since the unit price is changed within the discount period, if the unit price data obtained from the PLU table 41 is returned together with the discount rate data obtained from the unit price change table 42, the sales registration business program P1 is sent.
Return to processing. On the other hand, since the unit price is not changed outside the discount period, if the unit price data obtained from the PLU table 41 is returned, the process returns to the sales registration business program P1.

If the corresponding product code cannot be detected by the search of the PLU table 41, or if the corresponding discount number cannot be detected by the search of the unit price change table 42, an error response is sent and the sales The process returns to the registration business program P1.

When a response is generated by executing the unit price search processing program P2, the CPU 11 restarts the processing of the sales registration business program P1. Then, in ST8, it is determined whether the response by executing the unit price search processing program P2 is a unit price data response or an error response.

Here, in the case of a response of unit price data, S
As T9, it is determined whether the discount rate data is added to the unit price data. If not added, the unit price data is used as sales unit price data. On the other hand, if discount rate data is added, ST1
The discount amount is calculated by multiplying the unit price data by 0 and the discount rate data, and the discounted sales unit price is calculated by subtracting the discount amount from the unit price data.

Thereafter, at ST11, the sales unit price data is the sales amount of the sale product, and "1" is the sales amount, and the sales amount area and the sales amount area corresponding to the input product code of the PLU table 41 are respectively sales points. And add the sales amount for registration.

If the product code, the number of sales, the amount of sales, the amount of discount, etc. are displayed on the display unit 15 at ST12 and the printer 16 prints them on the receipt paper and the journal paper, the sales registration business program P1 of this time. End the process and move to the next program process.
If an error response is detected in ST8 and a product registration prohibition process such as displaying a comment indicating that the product registration is impossible on the display unit 15, the process of the sales registration business program P1 is terminated. Then, the process proceeds to the next program processing.

Also in the second embodiment having such a configuration, while the PLU table 41 is downsized as in the first embodiment, the unit price of the commodity for special sale is automatically changed during the special sale period. The sales registration process can be performed. Also, the first
Unlike the above embodiment, since the discount amount can be printed on the receipt, it is possible to strongly appeal to the customer that the discount has been given.

The present invention is not limited to the first and second embodiments, and for example, the discount start date and the end date are set to a time unit, without departing from the gist of the present invention. Of course, various modifications can be implemented.

[0051]

As described in detail above, according to the present invention, P
It is possible to provide a product sales registration data processing device capable of automatically changing the unit price of a product for special sale during the special sale period and performing sales registration processing while reducing the size of the LU table.

[Brief description of drawings]

FIG. 1 is a block diagram of essential parts of a POS terminal according to an embodiment of the present invention.

FIG. 2 is a diagram showing a structure of a main program stored in a ROM of the POS terminal according to the same embodiment.

FIG. 3 is a diagram showing a structure of a main table formed in a RAM of the POS terminal according to the same embodiment.

FIG. 4 is a flowchart showing a processing procedure of a sales registration business program which is a part of a main routine executed by the CPU of the POS terminal according to the embodiment.

FIG. 5 is a flowchart showing a processing procedure of a unit price search processing program which is a kind of subroutine executed by the CPU of the POS terminal according to the embodiment.

FIG. 6 is a flowchart showing a processing procedure of a sales registration business program which is a part of a main routine executed by the CPU of the POS terminal according to another embodiment of the present invention.

FIG. 7 is a CPU of a POS terminal according to another embodiment.
6 is a flowchart showing a processing procedure of a unit price search processing program, which is a kind of subroutine executed by.

[Explanation of symbols]

 1 ... CPU 3 ... ROM 4 ... RAM 5 ... Clock circuit 14 ... Keyboard 15 ... Display 16 ... Receipt / Journal printer 17 ... Bar code scanner 41 ... PLU table 42 ... Unit price change table P1 ... Sales registration business program P2 ... Unit price search Processing program

Claims (4)

[Claims] 1. A PLU (price look-up) table in which unit price data and unit price change table numbers of corresponding products are preset for each product code, and period designation data for designating a unit price change period for each table number. And a unit price change table that presets unit price change amount or unit price change data of unit price change rate, and a product code input means, and when the product code of the sale product is input by the input means, the PLU table To retrieve the unit price data corresponding to the input product code and the unit price change table number, and then to search the unit price change table to specify the period specifying data and unit price corresponding to the unit price change table number called from the PLU table. Change data and call the unit price based on the period specification data called from the unit price change table. It is determined whether or not to make a change, and when the unit price is changed, the unit price data called from the PLU table is changed based on the unit price change data called from the unit price change table, and then the changed unit price data is used. The sales data of the sales product is registered based on the sales data, and when the unit price is not changed, the sales data of the sales product is registered based on the unit price data called from the PLU table. Data processing device. 2. A PLU (price look-up) table in which unit price data and a unit price change table number of a corresponding product are preset for each product code, and period designation data for designating a unit price change period for each table number. And a unit price change table presetting unit price change amount or unit price change data of unit price change rate, a product code input means, a timekeeping means for timing the date or time, and a product code of a sale product by the input means. Once entered,
A PLU that searches the PLU table with the product code and calls the corresponding unit price data and unit price change table number
Table search means, unit price change table search means for searching the unit price change table with the unit price change table number called by the PLU table search means, and calling corresponding period designation data and unit price change data, and this unit price change table search. Determining means for determining whether or not to change the unit price from the period designation data called by the means and the time counting data by the time measuring means, and the unit price data called from the PLU table when the unit price is changed by this judging means. After making a change based on the unit price change data called from the unit price change table, the sales data of the sales product is registered based on the changed unit price data, and if the unit price is not changed, it is called from the PLU table. Sales registration processing for registering the sales data of the sales product based on the unit price data Commodity sales registration data processing apparatus characterized by comprising a means. 3. A PLU (price look-up) table in which unit price data and unit price change table numbers of corresponding products are preset for each product code, and period designation data for designating a unit price change period for each table number. And a unit price change table that presets unit price change amount or unit price change data of unit price change rate, product code input means, and unit price corresponding to the product code input by the input means by searching the PLU table. The data and the unit price change table number are called, the unit price change table is searched, the period designation data and the unit price change data corresponding to the unit price change table number called from the PLU table are called, and the unit price change table is called. When determining whether to change the unit price based on the specified period data, If the unit price data is called from the PLU table, the unit price data is changed based on the unit price change data called from the unit price change table and the changed unit price data is returned. If the unit price is not changed, the PLU is changed.
The unit price search processing means for responding the unit price data called from the table, and the unit price search processing means for starting the unit price search processing means when the product code of the sale product is inputted by the input means, and the unit price search processing means responds with the unit price data. And a main processing means for registering the sales data of the sales product based on the unit price data thereof. 4. A PLU (price look-up) table in which unit price data and unit price change table numbers of corresponding products are preset for each product code, and period designation data for designating a unit price change period for each table number. And a unit price change table that presets unit price change amount or unit price change data of unit price change rate, product code input means, and unit price corresponding to the product code input by the input means by searching the PLU table. The data and the unit price change table number are called, the unit price change table is searched, the period designation data and the unit price change data corresponding to the unit price change table number called from the PLU table are called, and the unit price change table is called. Determine whether to change the unit price based on the specified period data,
When the unit price is changed, the unit price data called from the PLU table is added with the unit price change data called from the unit price change table to respond, and when the unit price is not changed, the unit price data called from the PLU table is sent. The unit price search processing means that responds, and the unit price search processing means is started when the product code of the sale product is input by the input means, and when the unit price search processing means responds to the unit price data, the unit price is changed to the unit price data. If data is added, the unit price data is changed with the unit price change data, and the sales data of the sales product is registered based on the changed unit price data. If the unit price change data is not added, the unit price is changed. Main processing means for registering the sales data of the sales product based on the data. Data processing equipment.