JPH09180057A - Commodity sales registration data processor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To continue to pay and receive money by opening a drawer in case of a power failure without using a drawer key. SOLUTION: Even if a power failure occurs, it takes hundreds of milliseconds for the source voltage to drop down to 0V. From this fact, a power failure interruption process is utilized in case of the power failure to automatically open the drawer during the power failure interruption process (S5). Consequently, the drawer opening state of the drawer is secured in case of the power failure without using the drawer key. In this case, the drawer is opened on condition that a registration mode is in process (Y at S4), namely, a cashier is present, thereby preventing robbery due to the opening of the drawer without reason.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ECR (electronic cash register) equipped with a drawer for taking cash in and out.
And a product sales registration data processing device such as a POS (point of sale information management) terminal.

[0002]

2. Description of the Related Art Generally, an ECR or POS terminal of this type is provided with a drawer including a money case for storing money and a drawer case for storing the money case so that the money case can be freely opened and withdrawn. Since the money case stores money, it is normally locked in a stored state by a lock mechanism.

[0003] Such withdrawal and opening of the money case is normally performed in a form interlocking with the merchandise sales registration process based on a key operation on the keyboard. Most commonly, a lock case is automatically unlocked based on a tightening key operation to open and withdraw a money case so that received money can be stored or change can be paid. There is also a drawer key for the store manager or manager to withdraw and open this money case in order to collect the money in the money case after the store is closed. For this reason, a keyhole is provided on the front surface of the money case.

[0004]

However, according to such a conventional configuration, if a power failure occurs during the product sales registration process for a certain customer, the drawer remains closed and can be opened. Can not. Therefore, even if the transaction ends due to the transfer of money, it is inconvenient because it is necessary to wait until the power is restored.

Although the drawer key can be opened by using the drawer key even during a power failure, such a drawer key is stored in the office or carried by a store manager other than the cashier. In many cases, it is difficult to immediately respond to an abnormality such as a power failure using a drawer key.

Further, if an uninterruptible power supply is provided, it can function normally even if a power failure occurs, but the cost is increased by providing the uninterruptible power supply.

[0007]

According to the first aspect of the present invention,
In the product sales registration data processing device that automatically opens the drawer in conjunction with the closing operation of the product sales registration process, the drawer is automatically opened during the power interruption interrupt process when a power failure occurs in the registration mode. . The invention according to claim 2 is a drawer that can freely withdraw and withdraw money,
In a product sales registration data processing device including a drawer opening device that automatically opens the drawer in conjunction with a closing operation of the product sales registration process, a mode for determining whether or not this device is set to the registration mode. Condition determining means, power failure detecting means for detecting the occurrence of a power failure, and condition that the mode determining means determines that the registration mode is set when the power failure detecting means detects a power failure. And a drawer opening interrupt processing means for driving the drawer opening device during the power interruption interrupt processing.

Therefore, even if a power failure occurs, the power supply voltage is 0V.
Focusing on the fact that it takes hundreds of milliseconds to drop, and when a power failure occurs, the drawer is automatically opened using the power interruption interrupt process, so there is no need to use the drawer key It is possible to secure the drawer open state at the time,
It is possible to continue the process of giving and receiving money. At this time, even if a power failure occurs, the drawer is opened on condition that the cash register is in the registration mode, that is, it is possible to prevent theft and the like due to the drawer being opened unnecessarily.

[0009]

An embodiment of the present invention will be described with reference to the drawings. The merchandise sales registration data processing device of the present invention is applied to a POS terminal 1 used in a convenience store or the like as one of the embodiments.

FIG. 2 shows an external configuration of the POS terminal 1. On the right side of the drawer 2 for taking in and out money, a keyboard 3 operated by a cashier and a card reader 4 for reading and inputting card data recorded on a card such as a credit card are provided. On the left side of the drawer 2, a printer 5 is mounted. As is well known, the printer 5 serves as both a receipt printer and a journal printer, and has a receipt issuing port 6 and a journal confirmation window 7 in appearance. Further, a cashier display (CRT or FIU) 8 is provided after the keyboard 3, and a customer display (RIU) 9 is provided after the printer 5.

Here, the drawer 2 is composed of a money case 10 for storing money and a drawer housing 11 for storing the money case 10 in a freely drawable and openable manner. The money case 10 includes a drawer opening device 12.
(Refer to the block diagram of FIG. 3). The drawer opening device 12 includes an urging means such as a compression spring that constantly urges the money case 10 in the pull-out opening direction, and a lock mechanism that locks the money case 10 in the stored state against the urging means. , And a lock release mechanism including a solenoid for releasing the lock by the lock mechanism. That is, the money case 10 is stored in the drawer case 11, is biased in the pull-out opening direction by the biasing means, is locked in the locked state by the lock mechanism, and cannot be pulled out. When a drawer release signal is input in response to the tightening operation of the lock mechanism, the lock release mechanism functions to release the lock state by the lock mechanism, and the money case 10 is connected to the drawer housing 1.
It is constructed so that it can be automatically withdrawn and opened from 1.

Next, the hardware configuration of the POS terminal 1 will be described with reference to FIG. First, this POS terminal 1
The CPU 13 is mounted as a control unit main body. This CP
A ROM 15 in which fixed data such as a control program is stored in advance and a RAM 16 for temporarily storing variable data are connected to the U 13 via a bus line 14, and further, an HDD 17 or an FDD 1 as an external storage device.
8 are connected. The keyboard 3 with a mode setting switch (key switch) 19 and the card reader 4 are provided to the CPU 13 via the bus line 14 and various controllers (not shown) and I / O devices (not shown). , A printer 5, a cashier display 8, a customer display 9, a drawer opening device 12, and the like, and an external barcode scanner 20 and a clock circuit 21 are also connected.

The keyboard 3 is provided with a number key, a subtotal key, a closing key, and the like required for a product sales registration operation. The business modes set by the mode setting switch 19 include “registration”, “inspection”, and “payment”.
"Settings" and the like. Here, when the cashier sets the “registration” mode and executes the sales registration process of the product, the cashier No. Is registered.

Next, the structure of the power supply system for the POS terminal 1 will be described with reference to FIG. 5V by receiving commercial AC power of AC100V through the plug 22
CPU that generates various voltages such as 12V and 24V
13, a power supply device 23 for supplying various loads and the like is provided. From the power supply device 23 to the CPU 13, the C
A 5V line that supplies 5V required for the operation of the PU 13 is connected, and a PGOOD line that monitors the line voltage (AC100V) and outputs a PGOOD signal indicating an H level as long as the CPU 13 can operate is connected. . Furthermore, when the line voltage drops to 85 V or less, the PFL signal line that sends out the PFL signal that becomes H level is pulled out, and the inverter 24 and the interrupt controller 2 are connected.
It is connected to the CPU 13 via 5. Therefore,
When the / PFL signal inverted by the inverter 24 becomes L level, it is given to the CPU 13 as a signal IRQ instructing the execution of the power failure interrupt processing routine.

An area for the interrupt vector table 25 as shown in FIG. 5 is secured in the ROM 15, and int0
0 _H ~intFF _{H (H} denotes a hexadecimal) address of the interrupt processing routine shown in are respectively registered by 4 bytes. In particular, the power failure interrupt routine of interest in this embodiment are assigned to the int72 _H. The CPU
When an interruption occurs, the interruption No. 13 The interrupt processing routine is executed based on

Further, mode determining means described below,
Each function of the power failure detecting means and the drawer opening interrupt processing means is based on the program in the ROM 15 and is based on the CPU.
13 is executed.

Here, the cashier sets the registration mode by the mode setting switch 19, performs the product sales registration process while operating the keyboard 3, the barcode scanner 20, etc., and depresses the closing key in the keyboard 3 to declare the closing. Then, a drawer release signal is given to the drawer release device 12, the lock release mechanism is driven, the lock of the lock mechanism is released, the money case 10 of the drawer 2 is pushed by the urging means, and the drawer case 11 is automatically ejected. The drawer is opened. As a result, it becomes possible to exchange money such as money and change between the customer and the cashier.

Next, taking the case where a power failure occurs as an example, the opening control processing of the drawer 2 will be described with reference to the flow chart shown in FIG. 1 and the voltage or signal waveform chart shown in FIG. AC10 supplied via the plug 22
0V normally shows a sine wave waveform, but when a power failure occurs, the voltage drops, and when it drops to a level of 85V or less, the PFL signal monitoring the line voltage changes to the H level. Therefore, the / PFL signal inverted by the inverter 24 changes to the L level as shown in FIG. This / PFL signal is given to the CPU 13 as an interrupt signal IRQ by the interrupt controller 25. Receiving this interrupt signal IRQ, the CPU 13 detects that a power failure has occurred. This detection operation is executed by the power failure detection means.

Since it takes a few hundred milliseconds for the line voltage to completely reach 0V after the / PFL signal changes to the L level and an interrupt is generated, it takes a while for a while.
As shown in (d), the voltage of the 5V line is maintained at 5V, so that as long as the CPU 13 can operate, PGOO
The D signal is maintained at the H level as shown in FIG. Therefore, the power failure interrupt process is executed from the time when the / PFL signal changes to the L level to the time before the PGOOD signal changes to the L level.

The CPU 13, which has received the interrupt signal IRQ associated with the change of the / PFL signal to the L level, executes a power failure interrupt processing routine as outlined in FIG. First, if the sales registration processing is being performed, the processing during the sales registration processing is interrupted (step S1). Then, a message indicating that a power failure has occurred is output through the cashier display device 8 or the like (S
2). Further, the interrupted sales registration processing data and other stored contents in the RAM 16 are saved in the HDD 17 (S3). The process mainly including such data saving is executed as a normal power interruption interrupt process.

Next, the cashier manager No. It is checked whether or not is registered (S4). This check is executed by the mode determining means. Is registered means that the registration mode is set, that is, the cashier for the POS terminal 1 will exist on the spot. Cashier No. If it is determined that is registered (Y in S4), the CPU1
3 outputs a drawer opening signal to the drawer opening device 12, and the drawer opening device 12 automatically opens the drawer 2 (S5). That is, the lock release mechanism is driven to unlock the lock mechanism, and the money case 10 of the drawer 2 is unlocked.
Is pushed by the urging means and is automatically pulled out and opened from the drawer casing 11. During the power interruption interrupt, Y in step S4,
Also, the processing of step S5 is executed by the drawer opening interrupt means. As a result, even if a power outage occurs, the open state of the money case 10 is ensured, so that it is possible to continue the processing such as the transfer of money between the customer and the cashier without waiting for the restoration of the power supply. it can.

On the other hand, even if a power failure occurs, the cashier N
o. If the POS terminal 1 is not registered,
Since the POS terminal 1 is not in use, the process of opening the drawer 2 is not performed. Therefore, the drawer 2 of the unattended POS terminal 1 without a cashier will not be unnecessarily opened, so that theft or the like at the time of a power failure can be prevented.

[0023]

As described above, the present invention focuses on the fact that even if a power failure occurs, it takes several hundred milliseconds for the power supply voltage to drop to 0V. Since the drawer is automatically opened during the power interruption process, it is possible to secure the drawer open state at the time of a power failure without using the drawer key. At this time, even if a power failure occurs, the drawer is opened on the condition that it is in the registration mode, that is, the cashier is present. Occurrence can also be prevented.

[Brief description of the drawings]

FIG. 1 is a flowchart of a power failure interrupt processing routine showing an embodiment of the present invention.

FIG. 2 is an external perspective view showing a POS terminal.

FIG. 3 is a block diagram showing the hardware configuration thereof.

FIG. 4 is a block diagram showing a configuration around a power supply.

FIG. 5 is an explanatory diagram showing an interrupt vector table.

FIG. 6 is a time chart showing voltage and signal waveforms.

[Explanation of symbols]

 2 drawer 12 drawer opening device

Claims (2)

[Claims] 1. A product sales registration data processing device for automatically opening a drawer in synchronization with a closing operation of a product sales registration process, wherein the drawer is automatically opened during a power interruption interrupt process when a power failure occurs in the registration mode. A product sales registration data processing device characterized by being opened. 2. A product sales registration data processing device comprising: a drawer that can be freely withdrawn and opened for withdrawing and receiving money; and a drawer opening device that automatically opens the drawer in conjunction with a closing operation of the product sales registration process. , Mode determination means for determining whether or not this device is set to the registration mode, power failure detection means for detecting the occurrence of a power failure, and registration mode when the power failure is detected by the power failure detection means And a drawer opening interrupt processing means for driving the drawer opening device during a power interruption interrupt processing on the condition that it is judged by the mode judging means that the product sale registration is performed. Data processing device.