JPS6045894A - Electronic 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 [Technical Field of the Invention] The present invention relates to an electronic cash register capable of storing and displaying an opening operation of a cover covering a register main body component.

[Technical background of the invention and its problems]

Electronic cashier recorders (hereinafter abbreviated as registers) installed in shops, etc. have electronic components such as arithmetic circuits and memory circuits for registering product sales, and printers for printing amounts, etc. on receipts. A cover that covers a register body component such as a mechanical part is generally screwed to a support member such as an angle that supports and fixes the register body component. Therefore, by removing the screws, the cover can be opened/closed and removed relatively easily.

Although the ability to open and close the cover freely and easily improves work efficiency during inspection and repair work, it can also be misused for fraudulent accounting operations by intentionally modifying or replacing internal electronic components. There was also a risk that

[Purpose of the invention]

The present invention was made based on such circumstances, and its purpose is to memorize the opening operation of the cover,
By displaying a warning against fraudulent activity,
An object of the present invention is to provide an electronic cash register capable of suppressing fraudulent acts.

[Summary of the invention]

According to the present invention, a detection circuit detects an opening operation of a cover that covers constituent members of a resistor body including internal electronic components. Further, in another invention, the opening operation signal from the detection circuit is temporarily stored in a storage section, and is temporarily stored in the storage section by an opening/closing counter. The number of times the opening operation signal is issued is counted. Then, the measured value of the opening/closing counter is displayed.

[Embodiments of the invention] Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a perspective view showing an electronic cash register (hereinafter abbreviated as Zosta). That is, 1 in the figure is a base that supports register main body constituent members (not shown) such as electronic parts and printers, and the lower end of a cover 2 covering the register main body constituent members is screwed onto the peripheral edge of this pacen with bolts (not shown) or the like. It's stopped. A cutout is formed on the front surface of the cover 2 to expose the keyboard 3 and display section 4 attached to the register body constituent members, and a receipt issuing port 5 is also provided. Further, a drawer 6 is provided on the front surface of the pace I.

The keyboard 3 is provided with a number key 7 for entering the sales amount, number of items sold, etc. of the product, a department key 82 for indicating the classification of the product, and a deposit/cash key 9 for calculating the total amount. . Furthermore, this key yl? - The control key lθ and this control key IO are operated with a key on the card 3.
A check key 11 is provided to check the number of times the key is operated using a different key. The control key 10 controls power on/off and also "registers".

This is a control switch that instructs the central processing unit to execute various tasks such as ``accounting'' and ``setting''. Note that "registration" is a task of storing the price of sold products in the RAM, calculating the total price, etc., and printing the results on the receipt and recording paper. Furthermore, "settlement" is a task in which, for example, at the end of a day's work, the contents of the RAM are cleared after printing out the total amount of sales, the total number of original points, etc. accumulated in the RAM by "registration".

Furthermore, "setting" refers to the date, cashier A, etc. at the start of sales operations.
This is the task of setting up the tsukyasosha version, etc.

m21\1 is a block configuration diagram of a register.

The CPU (central processing unit) I2 has built-in arithmetic circuits, command registers, etc., and performs various arithmetic processing based on input information from the keyboard 3.
A ROM 14 stores fixed data of programs such as "registration", "payment", "setting", etc., a RAM 75 stores registration data of each product entered manually, and the number of opening operations of the cover 2 is stored through the RAM 14. An opening/closing counter memory 76 that stores ? and an input control section? 7. The output control unit Z8 is operated. Connected to the output end of the output control section I8 are the display section 4 that electronically displays the department code of the sold product, the total amount of the amount 2, etc., and the printer I9 that prints the total amount of the amount 2 and the like on the receipt. Further, at the input end of the input section 17, in addition to a keyboard 3 that sends out various key signals and various setting service signal stops, there is also a 7-lipflop 7p 2θ as a storage section that temporarily stores the cover opening operation signal a. Q output terminal is connected. In this case, the D terminal of Pfrozzo 20 is patched! The T terminal is connected to the positive terminal of the battery 21 through a resistor 22, and is grounded through a contact 23 as a detection circuit that detects the opening operation of the cover 2. has been done.

That is, this contact 23 is inserted between the pace 1 and the bar 2 shown in FIG. 1, and is configured to open when the cover 2 is opened. Note that a capacitor 24 is connected in parallel to this contact 23. Furthermore, the reset terminal of the flip-flop 20 is connected to a signal line from the output control section 18 .

In the resistor with this spring configuration, when the cover 2 is fixed to the base l, the contact 23 remains closed, so the T terminal of the flip-flop 2θ is O delt, that is, the Therefore, the opening operation signal a output from the Q terminal remains at 0''. Next, if someone manages to open cover 2 when the power is cut off,
Since the contact 23iI'i is opened, the T terminal goes to the "H" level, that is, 1. As a result, the opening operation signal a is output from the Q terminal. Since the level is held by the battery 2L, it does not change unless a reset signal of 1'' is applied from the output control section 18 to the reset terminal. Further, even if the cover 2 is closed and the contact 23 is closed, the above level does not change.

1, the CPU 12, control key 1
Each time the power is turned on by operating the control key 10, the opening operation of the cover 2 is measured according to the flowchart in FIG. First, check the opening operation signal a output from the Q terminal of the flip-flop 20 via the input control unit 17 at Pl, and if this value is °゛l'', the cover 2 will open at least once while the power is turned off. It is judged that the opening/closing counter memory 16 is incremented by the count value CNT 'i 1. Then, a reset signal of '1' is applied from the output control section 18 to the reset terminal of the flip 70 f2θ, and this Flip-flop 20ff: original state,
In other words, the Q terminal output is reset to °゛0''. With this, the plan for the opening operation of P7 bar 2 is completed, and the above-mentioned
After setting the volume at the start, proceed to one of the normal registration operations. On the other hand, after turning on the power, if the value of the Q terminal is 0'' at Pl, then the electric current is 1j!
It is determined that there was no opening operation of the cover 2 at i;j:, and various settings for J24 are performed.

Further, tlc, hfJ 1ji2CP [J 12, operate the number check and nail 11f on the keyboard 3, set the number 4 mode, and then enter the predetermined number from the numeric key 7, as shown in Fig. 4. 't'i41j'y to display the number of opening operations of cover 2 according to the flowchart.
, has been. That is, when a specific number is entered manually from the numeric key 7, press the input 'dilJ' control section 17 at P2 to confirm that the number check key 11 is set to the number check mode. Count value CN'14a:Ii/a of s+4 closed counter memory 16 is extracted. This count value CNT is output to the output control section 18.
The information is displayed electronically on the display section 4 via the printer 19, and is printed out on a receipt paper or the like. Thereafter, the count value CNT of the opening/closing counter memory 16 is cleared to zero, and the displaying operation of the opening/closing operation is completed.

With a resistor configured in this way, even if the cover 2 is opened while the power is cut off, the cover 12 is closed after some operation is performed on the electronic components, this opening operation is always performed as described in 1 and σ. be done. In addition, the number of opening operations of the cover 2 is also stored, so after the - period, the test negative checks the number of times,
It is possible to check the presence or absence of fraudulent activity by comparing the number of inspections and repairs with the regular number of inspections and repairs. therefore,
By adding a means for storing such an opening operation of the cover 2, fraudulent acts can be suppressed.

FIG. 5 is a block diagram showing an electronic gear register according to another embodiment of the present invention, and the same parts as in FIG. 2 are denoted by the same reference numerals. Therefore, the explanation of the overlapping parts will be omitted.

In the register of this embodiment, an indicator light 31 is connected to the output control section 18, and the opening/closing counter memo I716 of the embodiment of FIG. 2 is removed. Actually, the indicator light 31 is attached to one corner of the keyboard 30.

Then, when the power is turned on, the CPU 12 executes the flowchart K shown in FIG.
<tYi, when the opening operation signal a output from the Q terminal of the flip-flop 2θ is 1'', each part is controlled to turn on the indicator lamp 31 via the output control unit 18. 31, all the keys are operated using a separately provided and fraudulent key.

Even with the register configured in this way, the opening operation of the cover 2 is stored and displayed during power-off, so it is possible to obtain the same effect as the previous embodiment.

〔Effect of the invention〕

As described above, according to the present invention, since the opening operation of the cover is stored and displayed, it is possible to give a warning to fraudulent acts on internal VA electronic components, and to suppress fraudulent acts.

Sea register can be provided.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing an electronic carriage register according to an embodiment of the present invention, FIG. 2 is a block diagram of the register, FIGS. 3 and 4 are flow charts showing the operation of the register, and FIG. The figure is a block diagram showing the configuration of an electronic cash register according to another embodiment of the present invention, and FIG. 6 is a flowchart showing the operation of the register. l...Pace, 2...Case, 3...Keyboard,
4...I show! IL J o...Control key, 1
11. . Number of times check key, 12...CPU, 16...Open/close counter memory, 17...Input control section, 18...Output control section, 19...Printer, 20...Flip-flop, 21...・Battery, 23...Contact, 31
...Indicator light applicant's representative Patent attorney Takehiko Suzue Figure 1 Figure 3 Figure 4

Claims (2)

[Claims] (1) Key of the registration key provided on the key card At an electronic cash register where product sales are registered manually, open the cover that covers the components of the register body including internal electronic parts. An electronic device comprising: a detection circuit that detects and sends out an opening operation signal; a storage section that stores the opening operation signal from the detection surface; and display means that displays the contents of the storage section. cash register. (2) Key of the registration key provided on the keyboard In an electronic cashier renostar that manually registers the sale of products, the system detects the opening operation of the cover that covers the components of the register body, including internal electronic parts, and sends an opening operation signal. A detection circuit that sends out a signal, a storage section that temporarily stores the opening operation signal from the detection circuit, an opening/closing counter that measures the number of times the opening operation signal is temporarily stored in this storage section, and a measurement value of the opening/closing counter. An electronic cash register characterized by comprising a display means for displaying.