JPS5914783B2 - cash register - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an electronic cash register (hereinafter referred to as a cash register).

), and particularly relates to a cash register having a function of automatically detecting the stock of products for sale. For example, conventional cash registers used in superstores, cafeterias, etc. display and print out the total amount of sales items for each customer, as well as the department (classification) to which the sales item belongs.

) Save the total number of sales and sales amount,
At the end of each day's sales, the number of sales and sales amount for each department are printed out. There is also a cash register in which the unit price of a specific product for sale is preset so that key operations for inputting the unit price can be omitted when selling the product. By the way, in superstores, etc., in addition to the conventional cash register function, if there is a function to automatically know the stock of sold products, or in cafeterias, etc., a function to know the remaining stock for each sale, it would be possible to check the stock before it runs out. In addition, at the end of the day, if you can check the inventory quantity at a glance, you can immediately decide on the next day's purchase quantity, which is helpful for customer service and inventory management. It's convenient.

However, it is rare to find a cash register with such a function. The present invention has been made in view of the above-mentioned circumstances, and provides a cash register that can automatically detect the stock of sales items and is effective for improving customer service and managing inventory.

An embodiment of the present invention will be described in detail below with reference to the drawings.

In FIG. 1, reference numeral 11 denotes a keyboard section, which is provided with number keys 12, function keys 13, department keys 14, preparation keys 15, and the like.

The keyboard section 11 generates key signals in response to the operation of each numerical key of the numeric keys 12. This key signal is led to an encoder 16, where it is converted into a key code corresponding to the number of the operating key. Further, the keyboard section 11 generates a key code in response to each key operation of the function keys 13, and generates a preparation key signal in response to a key operation of the preparation key 15. It also generates a department code signal in response to the operation of each department designation key of the department key 14, and also generates a control pulse for each key operation. FIG. 2 shows the key types of the keyboard section 11 in detail, and the numeric keys 12 consist of numeric keys from 80'' to ``9'' and ``00''.
The department key 14 consists of department designation keys 61'' to 616'', and the function key 13 has keys such as %, +, -, and subtotal, and other various keys as shown are provided.

The functions of these various keys are not directly related to the present invention, so details will be omitted, but 611 to 66'' are operator identification keys, 8
Credit 7 is the selling key used. Loan 7 is the lending key. Current/Deposit 1 is the cash selling key. Correction 7 is the correction key. 6 Exchange is the currency exchange key.
is the unit price key, 0 sales 1 indicates the daily sales, the sales key, and c is the clear key. In addition, the keyboard section 11 is provided with a mode selection switch 10, which is used to switch and select modes such as power OFF, power 0FF, date n, preset, registration power, adjustment, fin preparation, etc. For example, when the registration 7 mode is selected, a key code can be generated when each key other than the preparation key 15 is operated, and when the "preparation" mode is selected, the preparation key 15 Set so that the preparation key signal can be generated during operation. That is, even if the preparation key 15 is operated by mistake during a normal sales operation in the 6 registration 1 mode, the preparation key signal is not generated, and the operation of the preparation key 15 is made effective for the first time in the 6 preparation 8 mode.
On the other hand, Y register 17, X register 18, Z register 1
9 is provided with gate circuits 20, 21, 22 on each input side, each output is input to an adder circuit 23, and the output of this adder circuit 23 is input to each of the gate circuits 20, 21, 22.

The output of the encoder 16 is input to the gate circuit 20, and the gate circuits 20, 21, 22 and the adder circuit 23 are controlled by a control signal supplied from the editor section 24 via the bus line 25. In addition, the Y register 17
The output of
Each is input into the storage section 29. This storage section 29 is addressed by a combination of row addressing and column addressing, and includes a plurality of data registers Z.
DR, to DRl6 are assigned to different rows. Each of these data registers DRl to DRl6 is 1
A preparation flag digit T for several digits, a preparation/sales digit T2 for several digits, and a sales amount digit T for several digits are assigned. The output of the Y register 17 is input to the data input terminal 1N of the storage section 29, and the read/write command is sent from the control section 24 via the bus line 25 to the read/write command input terminal R/W. A signal is input to the row address input terminal AL of the row address designation circuit 3.
A row address designation signal is input from 0 to the column address input terminal AU.A column address designation signal is input from the column address designation circuit 31 to the column address input terminal AU.Output data read from the data output terminal 0UT is input to the gate circuit 20. . A department code signal generated by operating the department key 14 of the keyboard section 11 is input to the row address designating circuit 30 via the bus line 32.

Therefore, by operating the department key 14, one of the row addresses of the storage section 29, that is, data registers DR, .about.DRl6, is selected and designated.
DRl6 corresponds to department designation keys "0" to 6167. Further, the column address designation circuit 31 receives a designation signal generated in the column section 24 via the bus line 33.
By the way, the control unit 24 inputs numerical data generated from the encoder 16 by operating the numeric key 12 or the Y register 1.
When the department key 14 is operated after the number is set to 7, the control pulse generated by the operation of the department key 14 is input to the control section 24, thereby generating a print command signal and sending it to the printing section 27. Print the contents of Y register 17.

After that, the contents of the Y register 17 and the contents of the X register 18 are added and the result is sent to the X register 18 (Y+
Furthermore, the contents of the Y register 17 are transferred to the Z register 19 (Y-+Z), and the contents of a specific data register specified by the operation of the department key 14 are read and transferred to the Y register 17, and this Y Contents of register 17 and Z
A control signal is generated from the bus line 25 to add the contents of the register 19 and transfer the result to the specific data register (Y+Z→data register). In addition, the control unit 2
4, when a preparation key signal generated by operating the preparation key 15 and a control pulse generated by operating the department key 14 are sequentially input, the number of preparations and sales of a specific data register selected and designated by the department key 14 at this time is input. Digit T2
A designation signal for designating the T2 digit is generated from the bus line 33, and a control signal and a write command signal for moving the contents of the Y register 17 to the T2 digit are generated from the bus line 25. .

Furthermore, a designation signal for designating the preparation flag digit T1 of the above-mentioned specific data register is generated to designate the T, digit, and a control signal for writing the preparation flag 11'' in the T1 digit. A loading command signal is generated from the bus line 25.The control unit 24 also has a buffer register 34 whose content is 11'' at the timing when the data of the loading flag digit T1 is transferred to the buffer register 34 of the adder circuit 23. A preparation flag detection circuit 35 detects whether the preparation flag 61'' is present or absent, and the preparation/sales several-digit data T2 is stored in the buffer register 34 according to the detection result of the preparation flag detection circuit 35. A ±1 signal generating circuit 36 is provided which generates a 1 addition signal and a 1 subtraction signal at the timing when the signal is being shifted and inputs them to the adder circuit 23.

Since one digit consists of four serial bits, the buffer register 34 is made up of four flip-flops connected in cascade. In the preparation flag detection circuit 35, the outputs of the four flip-flops of the buffer register 34 are input to the OR circuit 37, and the output of the OR circuit 37 becomes one input of the AND circuit 38. The other input of this AND circuit 38 is the control unit 2.
4, the T pulse of the T1 pulse, T2 pulse, and T3 pulse generated to represent each digit processing period of T,, T2, and T3 is input. Therefore, if the content of the buffer register 34 is 61'', an output 61 is sent to the OR circuit 37.
'' is obtained, and if this output ``1'' is generated during the T1 pulse period, an output 61'' is generated in the AND circuit 38. On the other hand, when the content of T1 of the buffer register 34 is 60'', the output of the OR circuit 37 is 601 and the output of the AND circuit 38 is 60''. That is, the outputs 61'' and ``07'' of the AND circuit 38 correspond to the presence or absence of the preparation flag ``1''. Further, the ±1 signal generation circuit 36
The AND circuit 38 of the preparation flag detection circuit 35 is
This input is input to an AND circuit 40 and an inverter 41 via a delay device 39 having a delay time of a pulse width of T2.

The output of this inverter 41 is input to an AND circuit 42, and the T2 pulse is also input to these AND circuits 40, 42. Further, a gate pulse for specifying the period in which the ±1 signal is to be generated is generated in the control section 24, and this gate pulse is also input to the AND circuits 40 and 42. Therefore, during the generation period of the gate pulse and the T2 pulse, if the delayed output of the delay circuit 39 is 6F', an output of '1' is generated in the AND circuit 40, and at this time, the output of the inverter 41 is 60', so the AND circuit 40 outputs '1'. The output of circuit 42 is 60″
It is.

On the other hand, if the delay output of the delay circuit 39 is O'' during the generation period of the gate pulse and the T2 pulse, the output of the AND circuit 40 is 60'', and at this time, the output of the AND circuit 40 is 60''.
Since the output of 1 is 61'', the output of AND circuit 42 is 6
1". That is, the AND circuit 40 or the AND circuit 42 is activated during the processing period of the preparation/sales several digits T2 according to the detection output of the preparation flag detection circuit 35 as to the presence or absence of the preparation flag.
An output error occurs. The output 61'' of the AND circuit 40 is sent as a 1 subtraction signal to the adder circuit 23, and 1 is subtracted from the data register preparation and sales number digit T2. It is sent as a signal to the adder circuit 23, and 1 is added to the preparation and sales several digits T2. Further, when a key code generated by operating the function key 13 of the keyboard unit 11 is input via the bus line 43, the control unit 24 generates a control signal for performing predetermined control in response to this key code input. . For example, when a key code generated by operating the subtotal key of the function keys 13 is input,
Move the contents of X register 18 to Y register 17 (X-+
After that, a print command signal is generated and the contents transferred to the Y register 17 are sent to the print section 27.
Print it with . In addition, if the mode selection switch 10 is set to 6 settlement mode 7 mode and the sales key is operated,
Data registers DR, ~DRl6 are sequentially transferred to Y register 17.
At the same time, it generates a print command signal to send the contents of the Y register 17, that is, the data register D.
The contents of R, to DR, 6 are printed sequentially.
On the other hand, the remaining number determination circuit 28 is supplied with the output of the AND circuit 38 of the preparation flag detection circuit 35, and when the detection output of the 611 level is input, the preparation/sales several-digit data T2 is input from the Y register 17. It is detected whether or not is a predetermined value (for example, O), and when it is determined that it is a predetermined value, a determination output 81' is generated.

When the determination output "1" of the remaining number determination circuit 28 is input, the notification device 44 performs notification by lighting up, generating an alarm sound, etc.

Next, the operation of the cash register having the above configuration will be explained.

For example, let us assume that the number of products sold in the 62' category remaining at the store is 150.

This information is then stored in the cash register. For this preparation operation, first select 0 preparation 7 mode with the mode switch 10, enter 150 in the Y register 17 with the number key 12, and then press the preparation key 15.
Operate the department designation keys "2" in sequence. Therefore, as shown in FIG. 3a, in the data register DR2 corresponding to the 62'' section in the storage section 29, 11'' is written in the T1 digit and the number of preparations 150 is written in the T2 digit. Note that when the power is turned on to the cash register, each data register D of the storage section 29
It is assumed that the contents of Rl to DRl6 are 60°. Therefore, the contents of the sales amount digit T3 of the data register DR2 and the contents of the data registers DR1, DR3 to DR16 are TfO as shown in FIG. 3a. Next, at the time of sale, the mode switch 10 is set to 6 registration 1 mode.

100 products in 621 departments for existing customers
Assume that there is a sales of 500 yen for a product in the 0 yen, 63" department. In this case, the sales operation is as follows: numeric value (1000) operation using the numeric key 12 → operation of the department designation key 62" and setting using the numeric key 12. The number (500) operation → operation of the department designation key 63'' and the operation of the subtotal key are performed in sequence. Therefore, first, the number (1000) operation using the number key 12 →
When the department specification key "2" is operated, 1000 is placed in the Y register 17, then Y+X-+X (7) is executed, the x register 18 becomes 1000, and then Y-+Z is set. Control is performed and the contents of Z register 19 become 10.
00 and the data register DR2 corresponding to the "2" division
Contents (T1 digit = 1., T2 digit = 150, .T3 digit = O
) is moved to the Y register 17. Then, under the control of the Y+Z→data register DR2, the cumulative sales amount is calculated and the cumulative sales amount is written. At this time, the T1 digit 61'' of the contents of the Y register 17 is detected by the preparation flag detection circuit 35, and the ± The adder circuit 2 is activated by the 1 subtraction signal output from the AND circuit 40 of the 1 signal generation circuit 36.
3, the content 1150'' of the T2 digit is subtracted by 1. Therefore, the contents of the data register DR2 are as shown in Figure 3b, the T2 digit is 149 (remaining quantity) and the sales amount digit T3 is 10.
00 (yen). Next, the number set on the number key 12 (50
0) Operation → By operating the department designation key "3", 500 is set in the Y register 17, then Y+X-+X control is performed, the contents of the X register 18 becomes 1500, and then Y-+Z control is performed. is performed and the contents of Z register 19 become 5.
The data register DR3 becomes 00 and corresponds to the 63″ division.
The contents Tl, T2, T3=0 are moved to the Y register 17. Then, Y+Z→data register DR3 is controlled, but at this time, the content of Y register 17 is T, digit 60''.
is detected by the preparation flag detection circuit 35, a 1 addition signal is output from the AND circuit 42 of the ±1 signal generation circuit 36, and the adder circuit 23 adds 1 to the content "O" of the T2 digit. Therefore, the contents of data register DR3 are as shown in Figure 3b.
As shown in the figure, the T2 digit is 1 (sales quantity) and the sales amount digit T
3 becomes 500 (yen). In this state, the contents of the x register 18 (1500=1000+500) store the subtotal of the sales amount.

Therefore, next, X-+Y is controlled by operating the subtotal key, and the contents of the Y register 17 become the subtotal of sales amount (1
500) and is printed. Next, if the same sales operation as above is performed again, the same operation as above is performed and the data register DR2 is changed as shown in FIG. 3c.
The remaining number is 148 (=149-1), and the cumulative sales amount is 2.
000 (=1000+1000), the number of sales of data register DR becomes 2 (=1+1), and the cumulative sales amount becomes 1000 (=500+500).

Further, at the end of the day, when the mode selection switch 10 is set to the settlement mode and the sales key is operated, the contents of the data registers DR1 to DR16 are sent to the Y register 17 and are sequentially printed. Therefore, while sales operations are being performed according to the sales breakdown for each customer. The remaining quantity and sales amount for products in the 2゛ category are automatically calculated, and the sales volume and sales amount for products in other departments other than the ``2'' category are automatically calculated. The remaining number determining circuit 28 determines whether the remaining number has reached a predetermined value (0).
It will be held in

When a judgment output 61'' indicating that the remaining number is a predetermined value (0) is generated from the remaining quantity judgment circuit 28 during a certain sales operation, the notification device 44 issues a notification. It is possible to automatically know when the remaining number of products in a department has fallen below a predetermined value, and to take necessary measures for customer service, such as replenishing the product.

Also, at the end of the day, the data register D is set by the sales key.
By printing the contents of R, to DR16, the total sales amount for one day and the remaining quantity can be confirmed, and the quantity to be purchased for the next day can be immediately determined.

In the above example, the remaining quantity at the store was used as the quantity to be prepared, but in some cases, the total remaining quantity including the quantity in stock outside the store may be used, and furthermore, in the case of selling by weight, the remaining quantity may be used. It's okay.

Alternatively, the notification output of the notification device 44 may be transmitted remotely to notify the remaining number manager who is located at a location away from the cash register.

Further, the notification device 44 may be configured to generate notification output for a certain period of time, or may be configured to stop generating notification output by an external operation.

Furthermore, if the contents of the data register are printed or displayed on the printing section 27 and the display section 26 each time a department key is operated, the operator can always check the remaining number, so the remaining number determination circuit 28 , the notification device 44 is not required. Further, in the above embodiment, products are classified by department, but it goes without saying that in cases where the number of types of products for sale is small, the remaining quantity or the number of sales can be automatically calculated for each product for sale.

In this case, each department designation key of the department key 14 of the above embodiment may be made to correspond to each product. Furthermore, in this example,
Although it is possible to store the number of preparations (remaining number) for all of the data registers DRl to DRl6, only a specific data register, for example, DRl to DR5, is provided with a storage means for the number of preparations (remaining number). performs a 1 subtraction operation,
Other data registers, for example DR6 to DR,6, may be modified in various ways without departing from the gist of the present invention, such as by not providing storage means for the number of preparations (remaining number) and allowing the number of sales to be added sequentially.

Furthermore, in the above embodiment, the number data and the data representing the department corresponding to the product are entered by key input operations, but they may also be entered by optical input means such as POS.

As described above, according to the present invention, the number of products on the shelf or the number of items in stock in the store is stored in advance, and by providing a function to sequentially subtract the number of sales, the remaining number of products for sale can be automatically calculated. It is possible to provide a cash register that is not only useful for improving customer service but also effective for store inventory management.

In particular, with the present invention, either the number of products sold or the number of products in stock can be selectively stored in the number memory, making it possible to add an inventory management function without increasing the capacity of the number memory. Summer.

Furthermore, the operator can switch to the inventory management function simply by setting the number of products in stock in the number memory, making the operator's setting operations extremely easy.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing one embodiment of the cash register according to the present invention, FIG. 2 is a diagram for explaining the key types of the keyboard section of FIG. 1, and FIGS. FIG. 3 is a diagram showing the contents of a data register to explain the operation of the diagram. 12... Number key 14... Department key 15... Preparation key, 20, 21, 22...
... Gate circuit, 24 ... Control section, 29 ...
... Storage section, 35 ... Preparation flag detection circuit, 36 ... Part 1 signal generation circuit, DRl to DRl
6...Data register.

Claims (1)

[Claims] 1. A number memory for storing number data, a setting means for setting the number of products in stock in the number memory, a storage means for storing a flag indicating that the number of products in stock has been set by the setting means, an input means for inputting the number of sold items, and when the number of sold items of the product is inputted from the input means, it is determined by a flag in the storage means whether or not the number of items in stock has been set in the number memory; a determining means for adding the sales quantity input from the input means to the quantity memory when the determination means determines that there is no setting, and adding the sales quantity input from the input means when it is determined that the setting is present; A cash register comprising arithmetic means for subtracting a number from the number memory.