KR920008390B1 - Display equipment and method for cash register - Google Patents

Abstract

The cash register, comprising a decoder (h) generating a control output of 2N unit by decoding the signal generated from the output port of N unit of CPU and a light emitting diode of 2N unit flickered according to the state of each control output, is able to show the sales amount. The control method for showing the sales amount includes the following steps: clearing the output port in the case of ending state of goods dealings; renewing the storing region of the present sales amout by summing the amount of money; renewing the storing region of the total amount by summing the present sales amount and the previous sales amount; showing the sales results by driving the relevant light emitting diode.

Description

Apparatus and method for displaying sales amount of cash register

1 is a system block diagram to which the present invention is applied.

2 is a detailed circuit diagram of the present invention.

3 is a flow chart of the present invention.

* Explanation of symbols for main parts of the drawings

A: display section B: print section

C: Central Processing Unit D: Keyboard

E: ROM G: RAM

F: Sales amount display part h: Decoder

LED1-LED8: Light emitting diodes R1-R8: Resistance

The present invention relates to a cash register, and more particularly to a sales amount display circuit.

In general, a cash register mainly used for product sales management, a central processing unit (C) for controlling the system, a keyboard (D) for inputting various data and commands according to product sales, various data processing results and A display unit (A) indicating the system status, a printing unit (B) for printing the sales status on a receipt for business customers and an auditor for store keeping, a ROM (E) for storing the system control program and initial data, and a product sale In the conventional cash register as described above, the customer information providing service for the sales activity was dependent on the report issued by the register. Therefore, in order to know the sold price, the specific price of the keyboard D was operated in a specific mode to check the sales amount printed on the report output through the printing unit B.

Because the operation behavior of each mode of the register is different, the report cannot be issued during the registration or other non-report mode, and the registration must be terminated and the sales activity details must be printed and confirmed in the report issuance mode. However, the method of switching the mode so that the item description can be made again after checking the amount printed on the report by operating a specific key in the specific mode as described above has a disadvantage in that the sales amount checking procedure is cumbersome and inefficient in work efficiency.

Accordingly, an object of the present invention is to provide an apparatus and method for displaying a selling amount of money so that sales amount information can be visually identified so as to confirm the sales performance of a current state so that sales activities can be more efficiently operated.

Hereinafter, the present invention will be described with reference to the accompanying drawings.

FIG. 1 is a system block diagram to which the present invention is applied, and is connected to the conventional cash register configuration described above by connecting a sales amount display unit F operated under the control of the central processing unit C. FIG.

FIG. 2 is a detailed circuit diagram of the present invention. The decoder decodes the outputs of the first to third ports P1, P2, and P3 of the CPU C and outputs them to the first to eighth output terminals Y0 to Y7. (h), first-eighth light emitting diodes LED1-LED8 respectively lit according to states of the first-eighth outputs of the decoder h, and the first-eighth light emitting diodes LED1-LED8 And first to eighth resistors R1 to R8 respectively connected between the cathode and the ground terminal.

3 is a flowchart of the present invention.

The present invention will be described in detail based on the above configuration. The sales activity of the cash register is carried out in the registration mode, and if you want to check the currently sold amount, you should check the report by switching to a specific mode.If you want to close the daily sales activity and check the amount of sales sold per day, The sales and settlement ends the day's sales activities. When the registrar closes the day's sales activities, the daily sales amount is added up to the accumulated total amount and the daily sales amount is cleared to zero.

In FIG. 1, the central processing unit C has an address and a data bus connected to the ROM E and the RAM G, and read and write control terminals RD, which control the ROM E and the RAM G. WR) can be connected to send and receive data. The central processing unit (C) recognizes the operation information by the keyboard (D) and stores the data in the RAM (D). The central processing unit (C) drives the display unit (A) and the printing unit (B). Output the desired information. Therefore, if the seller sells the merchandise, inputs various data related thereto, and then enters the current / yes key (cash / deposit), the central processing unit C recognizes that the merchandise transaction is at an end stage. Therefore, in step (1) of FIG. 3, the central processing unit (C) checks whether or not the end of the transaction of goods and controls to perform other functions if it is confirmed that it is not the end step. To clear the first to third output ports P1 to P3.

After performing step (2), in step (3), the sales amount is added and stored in the corresponding memory area, and the process proceeds to step (4) to add the sum of the sales amount to the existing sales amount sum and store the sum of the sales amount. Update the contents of the memory area.

After completion of step (4), proceed to step (5) to set any amount as a comparison amount, and in step (6), compare the accumulated amount with the comparison amount, and if the accumulated amount is less than or equal to the comparison amount, go to step (7). Proceeds to and adds a new comparison amount by adding up the current comparison amount by any amount set as the comparison amount in step (5) to update the contents of the comparison amount memory area and looping to step (6). On the other hand, when the accumulated amount is less than the comparison amount, the central processing unit (C) proceeds to step (12) and selects and outputs the port (P1-P3) value corresponding to the comparison amount as shown in Table 1 below (step 9). Clears the comparison amount memory area. In this case, the decoder h decodes the three outputs to drive the corresponding light emitting diodes, thereby indicating sales results.

TABLE 1

Where L stands for 0 and H stands for 1)

For example, let's say you open a store and start using a cash register, and the total amount of merchandise sold up to the present is 5,000 won, and at this point you have bought two 500-won ballpoint pens and one 700-won notebook. Inputs the sales details and finally inputs the present / yes key. At this time, the central processing unit (c) recognizes the end step in step (1), clears the three output ports (P1-P3) in step (2), and adds the sales amount to the corresponding memory area in step (3). Remember 1700 won. After that, in the step (4), add the current sales price to 1,700 won and store the current sales price of 1,700 won, and store 6,700 won in the accumulated sales amount storage area, proceed to step (6), and set the comparison amount to 10,000 won (7). In step), the accumulated amount 6700 won is compared with only the comparison amount 1.

As a result of the comparison, the total amount of the currently sold amount was found to be 10,000 won or less, so that the output of the cell (P1-P3) of the central processing unit (c) became 0 according to Table 1, and the decoder (h) was the first output terminal ( Y0) becomes high (1) and the first light emitting diode LED1 is turned on to indicate that the current accumulated amount is less than 10,000 won. If the cumulative sales amount is 65,000 won, the central processing unit (c) outputs 0 to the first output port (P1) according to the amount compared through the repeating of steps (6) and (7). Output 1 to the third output port (P2, P3) to light up the seventh light emitting diode (LED7) connected to the seventh output terminal (Y6) of the decoder (D) to identify the selling price. When the day's sale is over, check the exact sales amount in the report and finish the day's sales in the settlement mode.

As described above, a person in charge and a manager can visually check the sales amount during the sales activity for the goods transaction without issuing a report, thereby improving work efficiency, strengthening sales force, and giving responsibility.

Claims (3)

A cash register having a central processing unit (C), comprising: a decoder (h) for decoding signals generated from the N output ports of the central processing unit (C) to generate 2 ^N control outputs, and the decoder ( A sales amount display device comprising: ^2N light emitting diodes lit in accordance with each control output state of h) to display the sales amount. In the cash register display control method, the first step of checking whether or not the end of the transaction of goods and clearing the pull-up port when detecting the end of the transaction, the sum of the amount of each item currently sold by adding up the contents of the current sale amount storage area A second process of updating, a third process of updating the contents of the accumulated amount storage area by adding the current selling amount to an accumulated total of the existing selling amount, and changing the output state of the output port according to the accumulated amount of the corresponding light emitting diodes And a fourth process of displaying sales results by driving the control panel. The method of claim 2, wherein the fourth step of changing the output state of the output port according to the accumulated amount of money to drive the light emitting diode to display the sales results, sets a first initial value as a comparison amount, and sets the accumulated amount of money. A second step of repeatedly performing the operation of updating the comparison amount by adding the initial value to the temporary comparison amount more than the comparison amount more than the comparison amount until the accumulated amount is greater than or equal to the comparison amount; And a third step of controlling to drive the corresponding light emitting diode by selectively outputting the corresponding state among the output port states set for each comparison amount when the accumulated amount is less than the comparison amount.

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