JPS59180662A - Electronic cash register - Google Patents

Abstract

PURPOSE:To detect the error of an input amount possibly and precisely by entering the inputted amount only when the number of a fixed digit of the inputted amount is a previously fixed number. CONSTITUTION:A mode switch 15 is set up to a program mode, the value of a prescribed digit of a belonging section is inputted by depressing a ten-key 8 and a store key alternately, and all inputs of the same section are completed, a corresponding section key 9 is depressed. The values of the prescribed digits of all sections are stored in a storing area in an RAM by repeating said operation. When the mode switch 15 is turned to a registration mode, the amount is inputted from the ten-key 8 and then the corresponding sections DP1-DP5 on the section key are depressed at the registration of money, the amount is compared with the numeral of the corresponding section of the RAM, and when the same value exists, the inputted amount is entered. If the same value does not exist, the input is urged to execute again.

Description

[Detailed description of the invention] Technical field The present invention relates to a cash register.

BACKGROUND ART In conventional electronic cash registers, in order to prevent input errors as much as possible, when the number of digits of the input amount exceeds a predetermined value, the input amount is changed to a predetermined value. It is detected when the input amount exceeds the maximum value set or when the input amount is below the minimum value. With such prior art, it is not possible to precisely detect errors in input amounts, and accurate detection of input errors is even more desirable.

Purpose The purpose of the present invention is to correct the error in the entered amount.
To provide an electronic cash registration board that can detect details in detail.

Structure and Effects of the Present Invention The present invention provides an electronic cash system that is characterized in that an input amount is captured only when a predetermined number of digits of the input i-amount is a predetermined value. After registration.

According to the present invention, errors in input amounts can be detected as accurately as possible.

Embodiment FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention. A read-only memory 2 in which programs for creating cash registers and the like are stored is connected to a processing circuit 1 including a microcomputer and the like. Random access memory 3 is used for arithmetic operations and the like. This process IM 11' (: stands for a keyboard 4, a display 5 that displays values input using the keyboard 4 and calculation results, a printer 6 that issues receipts, etc., and a cash drawer that stores cash. 7 is provided.

FIG. 2 is a front view of the keyboard 4. keyboard 4
includes a numeric keypad 8 for inputting amounts, etc., a department key 9, a store key 10, a key 11 for hanging lights, a key 13 for making changes, etc., and a cash register stirrup. A key 14 for performing payment processing is provided. The keyboard 4 is also equipped with a mode switch 15 for switching and setting the operating mode.

Store state of Kundam access memory 3 1j=ts It
-s, , as shown in FIG. In the storage head yI)pvc of this random access memory 3, information shown in Table 1 below is stored. V′i in this memory 3
-i, 1” late pamphlet 1BN, :ni & kakunta FCN,
It is equipped with Kakunta WCN, work area W, etc.

Table 1 Referring to Table 1, the department key 9 is indicated by reference symbol DPI.
As shown in blocks DATA1 to DATA4, the last two digits of the items belonging to ``[OOj, [50J, l'-80J] are a total of three categories, and because of this type, they are stored in the individual DCH. In department 2 indicated by silkworm symbol DP2, the bottom 2 of the amount
There are two types of digits: "00-" and "5o".

In order to store the information in Table 1 in the store header DP, the mode switch 15 must be turned on as shown in FIG.
Set to the program mode, enter the last two digits of the amount displayed in department 1 (11, 1'f) by alternately using the numeric keypad 8 and the store key 10, and finally enter the 1st city displayed as KDPI. Operate the department key 9 corresponding to the bolt.

When registering, set mode switch 15i to 51Z.
The registration mode is set as shown in I. This situation! Enter the amount r250J and operate the department key 9 displayed as DPI, which represents the department in which you would like to buy the same item of 250 yen. The last two digits of this amount 250 are "50", and it can be seen from Table 1 that this is a second-hand item that clearly belongs to Department 1.

As shown in Figure 6, the amount of the same item belonging to category 1 is 260
circle? When inputting the amount, as shown in Table 1 (7), no amount with the last two digits of ``60'' was found, so the input amount of 260 yen would be treated as incorrect.

The operation will be explained with reference to FIG. The process moves from step n1 to step n2, and when the key is pressed, the process moves to step +13, where it is determined whether or not a number has been entered by operating VC on the numeric keypad 8. The take is incremented again, and the take is stored in the ti'I paper buffer BN at step n5. Store key 1 in step n6
0 was manipulated! When rlI is set to 1, the program mode is set to 1 in step n7. When in program mode, proceed to step n8.
,t! 1. If the digit &FN of the numerical value stored in the m buffer BN is 2, then step n9VC is applied, and if the 11 negative value of the counter WCN is 4, then P
4J lt7+. This tvtit WCN is the first
This indicates that the data DATA1-L) ATA4 shown in the table are stored. When the counter WCN is not straight or 4, the process moves to step nlO, where the value of the counter WCN is incremented over and over again, and in step nil, the data stored in the counter WCN of the work area W are stored in the murmured grasp DATA 1 to DATA 4.
Store 1 "" capacity of 1 white number buffer BN in one of them. In that case, the memory buffer BN is cleared and the 1M state kakunta is reset to zero in step n13.

In step n6, if the store key 10 is not operated, the process moves to step n14 YtX, and it is determined f41 whether the department key 9 has been operated. If so, the process proceeds to step n15, and the program mode is entered. If the program mode is selected, the number buffer BN is stored in step nj6.

Please note that digit FN of the door contents is 2. If so, the counter WCN is incremented, and in step n18 the force of work area W stored by WCN is 414JL)ATAI~I)
Store the contents of 1 &/< 777 BN in one of the ATA4s. In step n19, in the table for each department shown in Table 1, Kakunta WCN is added according to the number of each department.
The contents of 4@4L) are stored in CN, and the 1st valley of work area W is grabbed and DA'rA1 to DAT A4K are stored. In step n20, the kakunta WCN is reset to zero, and in step n21, the work area W is cleared.

In this way, through steps n6 to n21, the first table according to the operating procedure shown in FIG. 4 is completed.

When it is determined in step n22 that the mode switch 15 is set to the registration mode, the process moves to step n23, and it is determined whether the DCNO number of the corresponding department number is zero. If it is zero, A rain 1) Store the contents of CN in Kakunta WCN.

In step n25, the store song Ji m of the random access memory 3 is set to 1. The numerical value stored in this storage area m corresponds to the department number. In step n26, it is determined whether the lower two digits of the number buffer BN are the same as 11μ of the corresponding department information DA TA 1 to DA i' A 4, and if they do not match, step n27 VC is executed. Move, increment the store area m by 1, tetaryment across the Kakunku WCN,
・In step n28, it is determined whether the contents of the power counter WCN are valid or not, and if the content is not zero, the process moves to step n26.

In step n23, <+, y D of the corresponding department
If the content of CN is zero, move to step n29VC, set the content of Kakunta WCN to zero, and go to step n12.
Moved to VC.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of an electronic money tray recorder according to an embodiment of the present invention, FIG. 2 is a front view of the keyboard 4, FIG. 3 is a diagram showing the storage status of the random access memory 3, and FIG. is a diagram showing the key operation procedure in program operation mode,
5 and 6 are diagrams showing the key operation procedure in the registered operation mode, and FIG. 7 is a flowchart for explaining the operation. 1... Four-way circuit, 2... Read-only memory, 3
... Random access memory, 4... Keyboard,
8...Numeric keypad, 9...Department key, lO...Store key agent Caregiver Kensei Nishi-H1s

Claims (1)

[Claims] The predetermined number of digits of the input amount is the predetermined number.
An electronic cash register is characterized in that the input amount is collected only when the cash register is in cash.