KR100734101B1 - An apparatus for controlling battery backup of a banking system - Google Patents

Abstract

The present invention relates to a battery backup control device for a financial transaction automation device that performs normal management of customer transaction status information and files in a hard disk when a power failure occurs during operation without using a conventional uninterruptible power supply. In the battery backup control device of a financial transaction automation device having an output terminal for providing an operating power to the necessary module, the power supply voltage and the battery voltage sensed by the output terminal are sensed to warn the user of an abnormal power supply, and A first circuit unit for transmitting a power failure signal to an operating system; And a second circuit unit configured to compare the power supply voltage with the battery voltage to determine the switching to the battery backup mode and to provide the power supply voltage to the output terminal by using the battery voltage. When a power failure occurs, the battery backup function is automatically performed to save the transaction status log data of the customer and the file system in the hard disk due to unintentional power failure, and the financial transaction automation system is a system that adopts the operating system of Windows NT. Doing so prevents damage to the operating system due to instant power outages.

Financial transaction automation device, battery backup, operating system, power outage, customer transaction status log data

Description

An apparatus for controlling battery backup of a banking system             

1 is a block diagram of a battery backup control device of a conventional financial transaction automation device,

2 is a circuit diagram of a battery backup control apparatus of a financial transaction automation device according to an embodiment of the present invention.

※ Explanation of code for main part of drawing

10: uninterruptible power supply 12: main power supply

14 output terminal 16 unit

20: first circuit portion 22: second circuit portion

24: third circuit

The present invention relates to a battery backup control device for an automated financial transaction device, and more particularly, a battery backup control device for preventing data and device damage caused by a power failure while an automated device in a financial institution such as a bank is operating. It is about.

Financial institutions such as banks are using automated devices that automatically process financial transactions with customers, and the financial transaction automation devices are equipped with a predetermined type of battery backup control device in preparation for a power failure.

As illustrated in FIG. 1, the battery backup control device employed in the conventional financial transaction automation device is an uninterruptible power source that can continue to supply power uninterruptively to electrical and electronic devices even when a failure or power failure occurs in a main power facility in use. An uninterruptible power supply system 10; And a switching mode power supply system 12 for outputting operating power for electric and electronic devices in the financial institution.

The uninterruptible power supply 10 includes a control unit 10a that checks an input state of an input AC power, determines whether there is a power failure, and outputs a control signal accordingly; And a charge / discharge / output terminal 10c which charges / discharges the battery 10b or outputs the input AC power to the main power supply unit 12 according to a control signal from the controller 10a. . The battery 10b is embedded in the uninterruptible power supply 10.

The main power supply 12 converts and outputs AC power input through the uninterruptible power supply 10 into DC power of various levels (+ 5V, + 12V, etc.).

The conventional battery backup control device as described above has an increase in the size of the uninterruptible power supply in proportion to the capacity of the main power supply, and is limited by the degree of implementation of the power on / off sequence of the main power supply. That is, when the conventional uninterruptible power supply is used, since the capacity of the main power supply of the financial transaction automation device is large, the size of the uninterruptible power supply is also increased, making it difficult to install the corresponding financial transaction automation device.

In addition, if the conventional uninterruptible power equipment is used, the main power equipment must be redesigned due to the signal timing and power on / off procedures implemented in the main power equipment of the financial transaction automation equipment.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and if a power failure occurs during the operation without using the conventional uninterruptible power supply, financial transactions such that customer transaction status information and file management in the hard disk are normally performed. It is an object of the present invention to provide a battery backup control device for an automation device.

In addition, another object of the present invention is to provide a battery backup control apparatus for a financial transaction automation device to prevent damage to the internal operating system during a power outage during the operation of the Windows NT operating system.

Battery backup control device for a financial transaction automation device according to a preferred embodiment of the present invention in order to achieve the above object, the battery backup control device for a financial transaction automation device having an output stage for providing a power operation to the module that requires the battery backup To
A first circuit unit configured to sense a power supply voltage inputted to the output terminal and a voltage from an externally installed battery, issue a warning according to an input power supply or a battery failure, and transmit a power failure signal to an operating system of the financial transaction automation device; And a second circuit unit configured to compare the power supply voltage with the battery voltage to determine switching to the battery backup mode and to provide the power supply voltage to the output terminal using the battery voltage.

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Hereinafter, with reference to the accompanying drawings, a battery backup control apparatus for a financial transaction automation device according to an embodiment of the present invention will be described.

2 is a circuit diagram of a battery backup control apparatus of a financial transaction automation device according to an embodiment of the present invention.

The battery backup control device of the present invention includes an output stage 14 and a battery (not shown) which provide a corresponding unit 16 with a direct-current voltage (DC + 3V, + 5V, etc.) that can be output when the main power input voltage (AC) is normal. 26) is installed between.

Here, the output terminal 14 is applied to a MCU (Main Control Unit) and a RCRP (Roll Card Reader / Journal Printer) module requiring a battery backup function.

The battery backup control apparatus of the present invention senses a power supply voltage (Vcc; AC voltage) and a battery voltage (Vbat) input to the output terminal 14, and performs a warning according to an abnormality of the input power voltage or battery voltage and supplies power to an operating system. A first circuit unit 20 for transmitting an abnormal signal CTS; A second circuit part 22 which switches to a battery backup mode and provides a normal power supply voltage Vcc to the output terminal 14 as the power supply voltage Vcc becomes lower than the battery voltage Vbat; And a third circuit part 24 for charging the battery 26 using the power supply voltage Vcc.

The first circuit unit 20 divides the internal power supply voltage Vic input through the power supply voltage Vcc line (not shown) by the voltage dividing resistors R1 and R2, and the battery voltage ( The first comparator C1 for comparing Vbat and the second comparator for comparing the voltage P2 obtained by dividing the internal power supply voltage Vic by the voltage divider R4 and R5 with the battery voltage Vbat. The transistor Q2 and the transistor Q2 turned on / off according to the output signal from the first comparator C1 biased through the C2, the resistor R3 and the diode D3. And a transistor (Q3) for switching on / off according to the output signal from the second comparator (C2) biased through the warning light (LP1), the resistor (R6) and the diode (D4), and the transistor ( And a warning lamp LP2 that lights up as Q3) is turned on.                     

When the signal output from the first comparator C1 is at a high level, the signal is a signal (CTS; Clear-to-Send) indicating power failure, and not only the base of the transistor Q2 but also an operating system of Windows NT ( OS). The power failure signal CTS is an enable signal of TTL High.

The warning lights LP1 and LP2 may be configured as lamps or LEDs.

The second circuit unit 22 compares the power voltage Vcc input to the output terminal 14 with the voltage P3 divided by the voltage dividing resistors R7 and R8 and the battery voltage Vbat. The transistor Q4, which is on / off switching according to the output signal of the comparator C3 biased through the comparator C3, the diode D5, and the transistor Q4 is turned on as the transistor Q4 is turned on, thereby outputting the output terminal. A transistor Q5 is provided to provide a normal power supply voltage Vcc to the control element PWMMI (not shown) in 14 to perform a battery backup operation.

A backup off signal (DTR; Data-Terminal-Ready) from the operating system (OS) of Windows NT is input between the output terminal of the comparator C3 of the second circuit unit 22 and the diode D5 via a resistor. do. The backup off signal DTR is a signal for turning off the battery backup function after the operating system of Windows NT normally terminates, and the TTL low signal is an enable signal.

The power-on signal of the system control module SMC (not shown) is input between the diode D5 of the second circuit unit 22 and the base of the transistor Q4 through the diode D6. The power-on signal of the system control module is provided to the base of the transistor Q4 when the AC power supply voltage Vcc is normally input.

On the other hand, the third circuit section 24 of the comparator (C4) and the comparator (C4) for comparing the voltage divided by the power supply voltage (Vcc) by the voltage divider (R10, R11) and the battery voltage (Vbat) A transistor Q6 which is on / off switching operation according to an output signal and a transistor Q1 which is turned on as the transistor Q6 is turned on to charge the battery 26 are provided. The coil L1 limits the charging current, and the diode D9 prevents reverse current.

Next, the operation of the battery backup control device of the financial transaction automation device according to the embodiment of the present invention will be described.

First, when the input voltage Vcc input to the output terminal 14 through the diode D1 is normal (that is, in a non-interruptible state), the power-on signal TTL High of the system control module SMC turns on the diode D6. Via is biased to the transistor Q4 of the second circuit section 22 through. At this time, the output signal of the comparator C3 of the second circuit unit 22 is at a low level, and the power-on signal of the system control module SMC is input to the base of the transistor Q4 by the diode D5.

As a result, the transistor Q4 and the transistor Q5 are sequentially turned on so that the input voltage Vcc is normally input to the control element PWM IC (not shown) of the output terminal 14.

When the input voltage Vcc is normal, the output of the comparator C4 of the third circuit unit 24 is at a low level. Accordingly, the transistor Q6 and the transistor Q1 are sequentially turned on so that the input voltage Vcc is input into the battery 26 and the battery 26 is charged.

On the contrary, when the input voltage Vcc is out of power, the internal power supply voltage Vic of the first circuit unit 20 drops in voltage, thereby causing the output signal of the first comparator C1 to become high level.

Since the output signal of the first comparator C1 is at the high level, the power failure signal CTS is also input to the operating system OS of Windows NT while the power failure signal CTS is also at the high level, and the operating system operates in the shutdown mode. When the operation of the end mode such as storing the file of the system and the transaction status log of the customer is completed, the operating system OS provides the TTL Low backup off signal DTR to the second circuit unit 22.

The second circuit unit 22 performs a battery backup function while the shutdown mode operation of the operating system is performed. That is, as the AC input voltage becomes low level due to a power failure, the output signal of the comparator C3 of the second circuit unit 22 becomes high level, and the transistor Q4 and the transistor Q5 are sequentially turned on to diode The battery voltage Vbat through the D8 is input to the control element of the output terminal 14.

Accordingly, the financial transaction automation device terminates the battery backup function while safely storing the transaction state log data of the customer using the battery voltage Vbat.

If the operating system is immediately shut down without the battery backup function, the file system in the hard disk, the transaction log data of the customer, and the operating system itself are damaged.

On the other hand, when the battery voltage Vbat is normal and the AC input voltage Vcc is low level, the output signal of the first comparator C1 in the first circuit unit 20 becomes high level, and the transistor Q2 Is turned on. Accordingly, the warning lamp LP1 is turned on to indicate that there is an error in the input power supply.

When the AC input voltage Vcc is normal and the battery voltage Vbat is low level, the output signal of the second comparator C2 in the first circuit unit 20 becomes low level, and the transistor Q3 is provided. ) Is turned on. Accordingly, the warning lamp LP2 is turned on to indicate that there is an error in the battery voltage.

As described above, according to the present invention, if a power failure occurs during the normal operation of the financial transaction automation device, the battery backup function is automatically performed to damage the transaction status log data of the customer and the file system in the hard disk due to unintentional power failure. If the financial transaction automation device is a system using the operating system of Windows NT, it can prevent the operating system from being damaged by a momentary power failure.

Particularly, in the present invention, the battery backup function can be performed without the use of an uninterruptible power supply in the related art, so that the system can be mounted due to the size reduction compared to the conventional method, and the cost can be reduced.

On the other hand, the present invention is not limited only to the above-described embodiment, but can be modified and modified within the scope not departing from the gist of the present invention, the technical idea to which such modifications and variations are also applied to the claims Must see

Claims (5)

In the battery backup control device of a financial transaction automation device having an output stage that provides an operating power to a module that requires battery backup, A first circuit unit configured to sense a power supply voltage inputted to the output terminal and a voltage from an externally installed battery, issue a warning according to an input power supply or a battery failure, and transmit a power failure signal to an operating system of the financial transaction automation device; And Comparing the power supply voltage and the battery voltage to determine the switch to the battery backup mode, and using the battery voltage, the battery backup of the financial transaction automation device comprising a second circuit unit for providing a power supply voltage to the output terminal Control unit. The method of claim 1, And a third circuit unit configured to charge the battery using the power supply voltage. The method of claim 1, The first circuit unit, A first comparator for comparing the first divided voltage value of the internal power supply voltage with the battery voltage based on the power supply voltage; A second comparator comparing the second divided voltage value of the internal power supply voltage with the battery voltage; A first switching element configured to switch on / off in response to an output signal from the first comparator; A first warning device that is lit as the first switching device is turned on; A second switching element configured to switch on / off in response to an output signal from the second comparator; And And a second warning device which is turned on as the second switching device is turned on. The method of claim 1, The second circuit unit, A comparator for comparing the divided voltage value of the power supply voltage with the battery voltage; A first switching element configured to switch on / off in response to an output signal of the comparator; And a second switching device for supplying a power supply voltage to the output terminal as the first switching device is turned on. The method of claim 1, When the power failure signal in the first circuit unit is input to the operating system, the battery backup operation is performed by the second circuit unit, and the battery backup operation in the second circuit unit is terminated by the backup off signal from the operating system. Battery backup control device for a financial transaction automation device.

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