KR100294025B1 - Emergency exit guide lamp driving system using strobotron - Google Patents

Abstract

PURPOSE: An emergency exit guide lamp driving system is provided to reduce power consumption and lamp replacement cost by driving the emergency exit guide lamp only during power outage. CONSTITUTION: A system comprises a recharge battery(60) for supplying DC voltage upon occurrence of power outage; a constant voltage power supply(10) for charging the battery by generating a static DC voltage as a first output and supplying the static DC voltage to each part of the system during normal state, and generating a zero level signal as a second output during power outage; a power outage/battery voltage monitoring unit(20) for generating an emergency exit guide lamp driving signal in response to the zero level signal upon occurrence of power outage; a strobotron(51) serving as an emergency exit guide lamp by generating a high luminance flash during discharge; a trigger/high voltage generating unit(40) for generating a trigger signal of a first cycle and an AC high voltage of a second cycle relatively shorter than the first cycle, by using DC voltage of the battery when the emergency exit guide lamp driving signal is applied; a lamp light emitting unit(50) for generating flash by discharging the strobotron in the first cycle whenever the trigger signal is applied; and an external test unit(70) for cutting off the second output of the constant voltage power supply so as to test the system.

Description

Emergency exit induction light drive system using strobe discharge tube

The present invention relates to an emergency exit induction lamp driving system using a strobe discharge tube, in particular, using a strobotron having a high brightness luminous characteristics (Strobotron) as an emergency exit induction lamp as well as a long distance even in the event of fire due to the operation of emergency emergency power supply The time has also been greatly improved, and the evacuation of the emergency exit induction lamp driving system using a strobe discharge tube that can be safely evacuated with sufficient evacuation time and is driven only during a power failure to reduce the waste of power and the cost of lamp replacement.

Public buildings must be equipped with emergency exit guidance lamps, corridor passageways, and living room passage guidance lamps in emergency exits or corridors in order to evacuate people to safe places during a fire or power outage.

Such induction lamps are generally turned on by commercial power in the settled state, and are automatically switched to emergency backup power when the commercial power is out of power.

However, the conventional emergency exit induction lamp uses a lamp with a relatively large power consumption, and the bulb should always be turned on even in a normal state, resulting in a large cost due to frequent lamp replacement due to waste of power and a reduction in bulb life.

In addition, the conventional light bulb type emergency exit induction light driving system has a problem that it is difficult to display the emergency exit for a long time because the bulb must be turned on by the battery at the time of power failure, and the brightness of the bulb is weak at the time of power failure or fire, so that the emergency exit induction function can not be exhibited during haze. .

Moreover, in the past, it is inconvenient to test whether the system is operated at a long time all the time, and there is no function to diagnose and display the fault of the battery and the abnormality of the charging device by itself. Malfunctions can increase personal and / or property damage.

Therefore, the present invention has been made in view of the problems of the prior art, the object of which is to use a strobe discharge tube having a high brightness luminous characteristics as an emergency exit induction lamp, long distance even in the haze caused by fire as well as operation by the reserve power source The time has also been greatly improved to provide safe evacuation with sufficient evacuation time and to provide emergency exit induction lamp driving system using Gtrovo discharge tube that can be operated only during power outage to reduce power waste and lamp replacement cost.

Another object of the present invention is to provide a self-diagnostic and display function of the defective battery and the abnormality of the charging device to manage the system in an optimal state at all times and to always test the operation of the system at a long distance. To provide an emergency exit induction light drive system.

1 is a schematic block diagram of an emergency exit induction lamp driving system using a strobe discharge tube according to an embodiment of the present invention;

2 is a detailed circuit diagram of FIG. 1;

3A to 3I are waveform diagrams of the main parts of FIG.

* Explanation of symbols for main parts of the drawings

1 Transformer 3 Constant Voltage IC

5: constant voltage unit 10: constant voltage power supply unit

11: input terminal 20: power failure / battery voltage monitoring unit

30: battery charging part 40: trigger / high pressure generating part

41: oscillation IC1 42: oscillation IC2

43: first square wave oscillator 44: second curved wave oscillator

50 lamp emitting unit 51 strobe discharge tube

60: rechargeable battery 70: external test unit

80: low battery warning section 81: oscillation IC3

82: square wave oscillation circuit

In order to achieve the above object, the present invention provides a rechargeable battery for emergency standby power supply for supplying a first drive voltage to the system in the event of a power failure, and to supply the DC drive voltage for the system and charging for the rechargeable battery in the normal state. And a constant voltage power supply for outputting a constant second driving voltage to each part of the system in common with the first driving voltage regardless of the magnitude of the input voltage after converting the AC commercial power supply to DC. Power failure / battery voltage monitoring means for detecting when the voltage falls below the first reference voltage requiring battery recharging and generating an emergency exit induction light drive signal, a strobe discharge tube for generating a high-brightness flash when discharged, and an emergency exit When the induction lamp driving myth is applied, the trigger signal of the first period preset and the AC high frequency of the second period relatively shorter than the first period And a lamp light emitting means for generating a flash by converting the AC high voltage applied from the trigger / high pressure generating means into DC and discharging the strobe discharge tube in a first cycle to generate a flash. Provided is an emergency exit induction light drive system using a strobe discharge tube.

The present invention may further include an external test unit for artificially blocking the output of the constant voltage power supply unit to test the system remotely as well as the local.

The power failure / battery voltage monitoring means may include a first comparator for determining whether the constant voltage power supply unit and the battery voltage are greater than a first reference voltage, and the emergency exit induction lamp when the first reference voltage is greater than the output of the first comparator. A second comparator for generating a first control output requiring driving; and comparing the DC voltage generated separately from the second driving voltage from the constant voltage power supply unit with a second reference voltage to determine that a power failure has occurred; A third comparator generating a second control output in common with the output; a fourth comparator for generating a low battery warning signal when the first driving voltage is less than the first reference voltage; and the first or second control. And lamp driving request means for generating the emergency exit induction light driving signal to the trigger / high pressure generating means in response to the output.

The present invention further includes low battery warning means for displaying a low battery warning in response to the low battery warning signal. The low battery warning means may consist of a visual LED or an acoustic buzzer.

On the other hand, the trigger / high pressure generating means is a first square wave generating means for generating the square wave of the first period in response to the emergency exit induction light driving signal, and a second wave for generating the square wave of the second period in response to the emergency exit induction light driving signal Square signal generating means, Trigger signal generating means for generating a trigger signal for driving the strobe discharge tube in a first period based on the first square wave, and the first driving voltage in response to the second square wave of the second period It consists of high pressure generating means for converting to AC high voltage.

The lamp light emitting means is AC-DC conversion means for converting the AC high voltage applied from the trigger / high pressure generating means to DC, and the AC-DC conversion means is periodically supplied with a high voltage DC voltage of the strobe discharge tube A first auxiliary power source for applying to both ends, a second auxiliary power source periodically supplied with a high voltage DC voltage by the AC-DC conversion means, and one end of which is connected to a grid of the strobe discharge tube, and the first auxiliary power source Each time the trigger myth is applied to discharge the strobe discharge tube by means of a discharge means to discharge the charge of the second auxiliary power source may be configured as a trigger means for triggering the strobe discharge tube.

As described above, in the present invention, using a strobe discharge tube having high brightness luminous characteristics as an emergency exit induction lamp, not only the long distance is visible even in the haze caused by fire, but also the operation time by the emergency standby power source is greatly improved, so that the evacuation can be performed safely with sufficient evacuation time. It can be operated only during power outages, which can reduce power waste and lamp replacement costs.

In addition, the present invention is equipped with a function for diagnosing and displaying a defect of a charging battery and an abnormality of a charging device on its own, so that the system can be managed in an optimal state at all times, and it is not possible to always test whether the system is operated at a long distance.

EXAMPLE

Hereinafter, with reference to the accompanying drawings showing a preferred embodiment of the present invention described above in more detail.

1 is a schematic block diagram of an emergency exit induction lamp driving system using, for example, a Xenon Lamp (also called a "psych key") as a strobe discharge tube according to a preferred embodiment of the present invention.

As shown, the emergency exit induction lamp driving system of the present invention is a step-down transformer (1) for stepping down the commercial power of 110 and 220V to 10 to 24V in order to supply the DC battery to the battery and the charge for the rechargeable battery 60 at normal times. And a constant voltage power supply unit 10 for converting the voltage of the step-down transformer 1 into DC10 to 24V and outputting a constant DV6V voltage to each part of the system regardless of the magnitude of the input voltage.

In addition, the system includes a rechargeable battery 60 as an emergency power source for supplying power to the system in an emergency due to a power failure or a fire, and the rechargeable battery 60 has a lowered charge level when the power supply unit 10 is in a normal state. In this case, a constant DC voltage is charged through the battery charging unit 30 connected to the constant voltage power supply unit 10.

The output of the constant voltage power supply unit 10 and the output of the rechargeable battery 60 connected to the battery charging unit 30 are applied to the blackout / battery voltage monitoring unit 20, and the blackout / battery voltage monitoring unit 20 is either a power failure or a battery. When the charge voltage level of 60 falls below the reference set voltage, it is detected. When the power failure occurs, an emergency exit induction lamp driving signal SS is generated, and the charge voltage level of the battery 60 falls below the reference level. Generates an operation signal for the low-battery warning unit 60.

On the other hand, in the present invention, since the strobe discharge tube 51 is used as the emergency exit induction lamp, the trigger signal SH of 1 to 1.8 mV and about 400 V for triggering the strobe discharge tube 51 when the emergency exit induction lamp driving signal SS is applied. A trigger / high voltage generator 40 for generating an AV high voltage is provided, and the strobe discharge tube 51 is applied to the output of the trigger / high voltage generator 40 whenever a trigger signal SH of 1 to 1.8 kHz is applied. The lamp light emitting unit 50 for periodically emitting the strobe discharge tube 51 by discharging the high pressure applied to both ends of the) is connected.

In addition, the present system includes an external test unit 70 for artificially blocking the output of the constant voltage power supply unit 10 to test the system locally / remotely.

Hereinafter, an emergency exit induction lamp driving system using a strobe discharge tube according to an exemplary embodiment of the present invention will be described in detail with reference to a detailed circuit diagram of FIG. 2 and a waveform diagram of a main part of FIG. 3.

1. Constant voltage power supply (10)

The constant voltage power supply unit 10 serves to minimize the change of the output voltage due to the change of the input voltage as a part for charging the rechargeable battery 60 and supplying a DC voltage to the entire system.

The constant voltage power supply unit 10 has an AC voltage (see SA of FIG. 3) or DC24V having four terminals down the commercial AC voltage to AV10 to 24V through the step-down transformer 1 in the terminals 3 and 4 of the input terminal 11. Voltage is applied. The AC 10 to 24V voltage is converted into a DC 10 to 24V voltage through a bridge rectifying circuit composed of four rectifying diodes D1 to D4, and then first smoothed by a capacitor C1 to have a DC voltage having a slight ripple component. (See SB in FIG. 3), and then, is applied to the constant voltage section 5.

The constant voltage unit 5 is composed of a constant voltage IC 3, resistors R3, R4 and VR1 and a capacitor C2 so that the output is always constant even though the input fluctuates, and the voltage of the DC6 volt with ripple component completely removed ( SD) (see Fig. 3) is made and output. The output of the constant voltage unit 5 is connected to a series circuit of the resistor R5 and the light emitting diode LED1 to instruct the LED1 that the constant voltage power supply unit 10 is operating normally. The DC6V output of the constant voltage unit 5 is charged to the rechargeable battery 60 via the battery charging unit 30 formed of the reverse blocking diode D5 and the capacitor C3 and is supplied to each circuit. The switch SW included in the constant voltage power supply unit 10 represents a main power switch of the system.

2.External test part 70

This circuit has a function of artificially shutting off the output of the constant voltage power supply 10 to test the operating state of the system locally or remotely.

The external test unit 70 externally applies a voltage of DC 5 volts to the terminals 1 and 2 of the input terminal 11 for the test. In this case, the external test unit 70 has a connection point at which a voltage of DC5V is applied to the base through the base resistor R13, and the collector generates the first smoothed DC voltage of the constant voltage power supply unit 10 through the resistor R2. Connected to SB, the emitter includes a grounded transistor Q4.

Accordingly, when a voltage of DC5V is applied to the terminals 1 and 2 directly or from a central control room located at a remote location, the transistor Q4 is turned on, and the input flow applied to the constant voltage IC 3 of the constant voltage power supply unit 10 is applied. Let it flow to ground through Q4. As a result, the output voltage of the constant voltage IC 3 is zero volts to artificially create a state such as a power failure so as to operate the power failure / battery voltage monitoring unit 51 described later.

3. Power failure / battery voltage monitoring unit (20)

The blackout / battery voltage monitor 20 is a circuit that detects an abnormality such as a blackout or a low battery state by comparing a power failure or a voltage drop of the battery 60 with a reference voltage, and includes four comparators (COMP1-COMP4). ), And the first reference voltage (V) is determined by the voltages of both ends of the zener diode ZD1 of the series / parallel circuit composed of the variable resistor VR3, the resistor R10, the zener diode ZD1 and the capacitor C6. VREF1 is set, and the second reference voltage VREF2 is set from the connection point between the resistor R9 to which the first reference voltage VREF1 is applied and the resistor R8. The output of the first comparator COMP1 is connected to the connection point of the variable resistor VR3 and the resistor R10 through a resistor R26, and between the resistors R11 and R12 and the capacitor C5 between the output and the ground. A serial and a parallel circuit are connected to each other so that the first reference voltage VREF1, which is set to the voltage across the zener diode ZD1, is inserted to minimize the fluctuation due to the influence of noise.

The outputs of the second and third comparators COMP2 and COMP3 are connected to the base of the NPN transistor Q7 having the emitter grounded in common and the collector of the transistor Q7 is connected to the base of the PNP transistor Q6. It is connected to the base via a resistor (R6). The transistor Q6 has an emitter connected to the output terminal SC of the constant voltage power supply unit 10, and one end of the collector is connected to the grounded capacitor C4. Occurs.

The first reference voltage VREF1 is applied to the inverting input terminal to the first comparator C0MP1, and the second reference voltage VREF2 is applied to the non-inverting input terminal to the third comparator COMP3. The first reference voltage VREF1 is applied to the four comparators COMP2 and COMP4 respectively to the inverting input terminal and the non-inverting input terminal.

In addition, the non-inverting input terminal of the first comparator C0MP1 is connected to the other end of the variable resistor VR3 connected to the output of the constant voltage power supply unit 10 so that the non-inverting input is the first reference voltage VREF1. For example, the variable resistor VR3 is adjusted to be slightly larger than 1.35V.

When the output terminal of the first comparator COMP1 is connected to the non-inverting input terminal of the second comparator COMP2, when it is in a normal state, it is applied to the non-inverting input terminal than the first reference voltage VREF1 applied to the inverting input terminal. The high level H of the first comparator COMP1, for example, the 6V output, is set to be larger so that the output of the high level H is generated from the second comparator COMP2.

The second reference voltage VREF2 is applied to the non-inverting input terminal of the third comparator COMP3, and the first smoothed output of the constant voltage power supply unit 10 and the transistor Q4 of the external test unit 70 are applied to the inverting input terminal. The third comparator COMP3 generates an output of the high level H when the input voltage obtained from the connection point SJ between the collectors of the T1) drops to zero level by a power failure or an external test, and the constant voltage power supply unit 10 When the first smoothed output of the) is normal and is not an external test, a voltage higher than the second reference voltage VREF2 is applied to the inverting input terminal of the third comparator COMP3 so that the third comparator COMP3 has a low level ( L) output occurs.

In addition, when the first reference voltage VREFl is applied to the non-inverting input terminal of the fourth comparator COMP4 and the output of the first comparator COMP1 applied to the inverting input terminal is high level (H), that is, in a normal state. The fourth comparator COMP4 generates the low level output L. However, when the output of the first comparator COMP1 falls to the low level L due to the low battery (for example, 1.35 V or less), the fourth comparator COMP4 generates the output of the low level L. The fourth comparator COMP4 is generated as an operation signal to the low-battery warning unit 80 which describes the output of the high level H.

A. Steady State (Standby)

When the DC voltage of the constant voltage power supply unit 10 applied to the non-inverting input terminal of the first comparator COMP1 is normal and the charging voltage of the battery 60 is constant, the output of the first comparator COMP1 becomes high level. Therefore, the output of the second comparator COMP2 is at a high level, and the output voltages of the third and fourth comparators COMP3 and COMP4 are at a low level, that is, 0V. However, since the outputs of the second and third comparators COMP2 and COMPP3 are commonly connected, the transistors Q6 and Q7 are both turned off so that the trigger / high voltage generator 40 and the low battery warning unit 80 are connected. Since the oscillation ICs 41, 42, and 81 do not oscillate, the strobe discharge tube 51 of the lamp light emitting section 50 does not emit light either.

B. Power failure and battery voltage steady state

First, when the blackout and the voltage of the battery 60 is normal, since the normal battery voltage is applied to the non-inverting input terminal of the first comparator COMP1, the output of the first comparator C0MP1 becomes a high level, and the output of the second comparator COMP2 The output goes high and the output of the fourth comparator COMP4 goes low.

In addition, since the first smoothed output of the constant voltage power supply unit 10 applied to the inverting input terminal is also at the zero level, the output of the third comparator COMP3 becomes a high level H, so that the second and third comparators COMP2 and COMP3 are used. Transistors Q7 and Q6 are sequentially turned on since the outputs of the output transistors are high level, and as a result, DC6V, which is the emergency exit induction lamp driving signal SS, is generated through the transistor Q6. The oscillation IC1 and the IC2 (41,42) start oscillation to light the strobe discharge tube 51 of the lamp light emitting section 50 by being supplied to the IC2 (41, 42).

C. Power Failure and Low-Battery Conditions

When the strobe discharge tube 51 emits light in the normal state of the power failure and the battery voltage, the charging voltage of the battery gradually drops to the quasi-voltage level.

When the battery voltage level is gradually lowered at 6V and becomes below a predetermined predetermined reference set voltage (for example, 4.5V), the battery voltage level is applied to the non-inverting input terminal of the first comparator COMP1 through the variable resistor VR3. The voltage becomes smaller than the inverting terminal input voltage, and the output of the first comparator C0MP1 becomes the low level L.

Accordingly, the output of the second comparator COMP2 is at a low level, the output of the fourth comparator COMP4 is at a high level H, and the output of the third comparator COMP3 is at a high level according to a power failure.

In this case, the common connection terminals of the second and third comparators COMP2 and COMP3 become low level, and the transistors Q7 and Q6 remain turned off. As a result, the emergency exit induction lamp driving signal SS is not generated, which triggers the trigger. The high voltage generation circuit 40 and the lamp light emitting unit 50 are stopped. At the same time, the fourth comparator COMP4 generates a low battery warning signal to the low battery warning unit 80.

D. Constant Voltage Supply and Low-Battery Condition

This case corresponds to a case in which the battery 60 is defective or an abnormality of the charging device occurs. In this case, since the output of the constant voltage power supply unit 10 is partially leaked into the battery 60, a voltage lower than the inverting input terminal is applied to the non-inverting input terminal of the first comparator C0MP1. As a result, the output of the first comparator C0MP1 becomes the low level L. FIG.

Accordingly, the output of the second comparator COMP2 is at the low level, the output of the fourth comparator COMP4 is at the high level H, and the output of the third comparator COMP3 is 1 of the constant voltage power supply 10. Since the smoothed output is normal, it goes low.

In this case, the common connection terminals of the second and third comparators COMP2 and COMPP3 are at a low level so that the transistors Q7 and Q6 remain turned off, and at the same time, the fourth comparator COMP4 is connected to the low battery warning unit. (80) Generates a low battery warning signal.

E. External test status

As described above, when the system test voltage is applied to the external test unit 70, the transistor Q4 is turned on so that the zero level is applied to the inverting input terminal of the third comparator COMP3, so that the output of the third comparator COMP3 is It becomes high level (H). In this case, since the constant voltage power supply unit 10 is normal, the outputs of the second and third comparators COMP2 and COMP3 are both at a high level, and the transistors Q5 and Q6 are sequentially turned on. As a result, the trigger / high voltage generator 40 is turned on. Oscillation ICI and IC2 (41,42) start oscillation and make the strobe discharge tube 51 of the lamp light emitting part 50 emit light.

4. Low battery warning section (80)

This circuit generates a pulse when the voltage of the battery 60 is lower than the reference set voltage and thereby emits LED2 to warn the low battery. The circuit is controlled by the oscillation IC3 81, the resistor R16, and the capacitor C8. A square wave oscillation circuit 82 is configured, and a base of the transistor Q5 is connected to the output of the oscillation circuit 82 through a resistor R17, and the collector of the transistor Q5 has a low to battery warning LED2 and a resistance. Grounded via (R19).

Therefore, the low-battery warning unit 80 is at the output of the fourth comparator COMP4 when the battery 60 is out of power or lowers below the reference voltage adjusted by the variable resistor VR3 of the battery voltage monitoring unit 20. High level (H) output is applied to oscillation IC3 (81). Accordingly, the oscillation IC3 starts oscillation, and generates a square wave of 10 Hz to 1 KHz shown in the SD of FIG. 3 from the output of the oscillation IC3 to emit the LED2 to inform the user that the charging voltage of the battery 60 has decreased.

In this case, a buzzer or the like may be used instead of LED2 to sound a warning.

Therefore, the present invention is provided with a function of diagnosing and displaying a defective battery and an abnormality of a charging device by itself so that a user can always manage the system in an optimal state according to the light emitting state of LED2.

5. Trigger / High Pressure Generator (40)

The trigger / high voltage generator 40 generates two pulses to adjust the light emission rate of the strobe discharge tube 51 of the lamp light emitting unit 50 and simultaneously generates a high voltage. The square wave oscillation ICI 41 and the resistance ( A first square wave oscillation section 43 consisting of VR2 and R20 and a condenser C11 to generate a square wave of about 1 to 1.8 Hz shown in the SE of FIG. 3, the oscillation IC2 42, the resistor R23 and the condenser ( C10) and a second square wave oscillator 44 for generating square waves of about 22 KHz.

Therefore, when the DC voltage is supplied to the oscillation IC1 and the oscillation IC2 (41, 42) from the blackout / battery voltage monitoring unit 20 as described above at the time of power failure, the first and second square wave oscillators 43, 44 start oscillation. The oscillation IC1 41 generates a square wave of about 1 Hz to 1.8 Hz (SE in FIG. 3), and the oscillating IC2 42 generates a 22 KHz square wave (SF in FIG. 3).

After that, the output of the first square wave oscillator 43 is divided by a voltage divider circuit consisting of a resistor R21 and a resistor R22 of a PUT (Programmable Unijunction Transistor) Q3 described later through a capacitor C12 and a high frequency bypass. A gate trigger signal having a waveform shown in SH in FIG. 3 is applied to the gate of the PUT Q3 of the lamp light emitting unit 50 via the capacitor C13.

The 22 KHz square wave of the second square wave oscillation unit 44 is applied stepwise to the transistors Q1 and Q2 serving as inverters, respectively, through the resistor R24. In this case, DC voltage is applied from the electrostatic / battery voltage monitor 20 to the base of the transistor Q2 through the resistor R25, and the collector of the transistor Q2 is connected to the primary side of the boost transformer Tl and the transformer The other end of the primer T1 is grounded through a capacitor C14√15.

Therefore, when a high frequency pulse signal of 22 KHz high level (6 V) is applied to the transistor Q1, the transistor Q1 is turned on and the transistor Q2 is turned off. In this case, the capacitors C14 and C15 are charged with electric charges. Thereafter, when the zero level of the pulse signal is applied, the transistor Q1 is turned off, and the transistor Q2 is turned on by applying a DC voltage from the electrostatic / battery voltage monitor 20 through the resistor R25. Accordingly, the charges charged in the capacitors C14 and C15 discharge and flow to the transistor Q2 through the primary coil of the transformer T1.

Thereafter, when the high frequency pulse signal of high level 6V is applied to the transistor Q1, the transistor Q1 is turned on and the transistor Q2 is turned off. Thus, the current flows through the primary coil of the transformer Tl in the reverse direction to charge the capacitors C14 and C15.

As described above, when the transistor Q2 is switched and driven by a high frequency signal, an AC voltage of about 400V high voltage is generated in the secondary coil of the transformer T1.

6. Lamp light emitting unit (50)

The lamp light emitting unit 50 is a circuit that periodically emits a lamp by applying a high voltage across a pair of strobe discharge tubes XL1 and XL2 during a power failure, and is applied from a transformer Tl of the trigger / high voltage generating unit 40. The bridge rectifier circuit which converts AC voltage of 400V into DC is composed of four diodes (D7-D10), and between the output of the bridge rectifier circuit and ground, a capacitor (C17) and a pair of strobe discharge tubes (XL1, XL2) ) Are connected in parallel.

In addition, a resistor R26 and a capacitor C16 are connected in series at the output of the bridge rectifier circuit, and a connection point between the resistor R26 and the capacitor C16 is negative at 1.8 Hz as shown in SH of FIG. An edge gate trigger signal is connected to the anode of PUT Q3 which is applied as a gate.

The other end of the capacitor (C16) is connected to the three-terminal coil element (T2) for generating instantaneous high pressure, the other end of the coil element (T2) is connected to the grid of a pair of strobe discharge tube (XL1, XL2), Between the connection point of the capacitor C16 and the coil element T2 and the ground, a diode Dl1 for forming a discharge passage of the high voltage pulse generated from the coil element T2 is inserted.

The lamp light emitting unit 50 configured as described above converts an AC voltage applied from the trigger / high voltage generating unit 40 to a DC voltage through a bridge rectifying circuit to charge the capacitors C16 and C17. Therefore, a high voltage of 400 V is applied to both ends of the strobe discharge tubes XL1 and XL2.

At this time, when the negative-edge gate trigger signal shown in SH of FIG. 3 is applied to the gate of the PUT Q3, the PUT Q3 is turned on, and the charging current of the capacitor C16 is discharged through the PUT Q3. The high voltage generated instantaneously from T2 stimulates the grids of the strobe discharge tubes XL1 and XL2. As a result, the charging current of the capacitor C17 is discharged from (+) of the strobe discharge tubes XL1 and XL2 to (-), and the strobe discharge tubes XL1 and XL2 emit light instantaneously.

After that, the charging of the capacitors C16 and C17 proceeds rapidly and the gate trigger signal is applied to the PUT Q3 in a period of 1.8 Hz so that the strobe discharge tubes XL1 and XL2 also emit light in a period of 1.8 Hz.

The light emission period can be varied by adjusting the variable resistance VR2 of the trigger / high voltage generating unit 40. In this case, since the strobe discharge tubes XL1 and XL2 have high luminance light emitting characteristics of 75 candelas (cd). When there is no smoke, about 90m, and when 50% of smoke is about 3m can see. Accordingly, the present invention using the strobe discharge tube as the emergency exit induction lamp exhibits excellent emergency exit induction function as compared to the conventional emergency exit induction lamp using a fluorescent lamp or a bulb having a zero visual field at 50% haze.

In addition, in the system of the present invention, the operating time of using the rechargeable battery 60 as an emergency backup power source was about 30-40 minutes in the past, but the present invention can operate more than about 90 minutes, so that the evacuator in a fire has a sufficient evacuation time. You can evacuate safely with.

On the other hand, unlike the conventional system, the constant voltage power supply unit 10 and the blackout / battery voltage monitoring unit 20 are driven in the normal state, and the lamp light emitting unit 50 and the trigger / high voltage generator 40, which are high loads, are blackouted. Since it is driven only at the time, it is possible to reduce the waste of power and the replacement cost of the lamp due to the long time driving.

The present invention is further equipped with a function for diagnosing and displaying a defective battery and an abnormality of a charging device by itself, so that the system can be managed at an optimal state at all times, and the system can be directly or remotely through an external test unit 70. Can be tested at all times to provide an advantage in the management of large buildings that require the management of a number of emergency exit guide lights.

Meanwhile, the present invention exemplifies an example of generating a constant DC output using the constant voltage power supply unit using a constant voltage IC, but it is also possible to use any other type of AC-DC conversion circuit or DC-DC conversion circuit, and the function of the system. It is of course also possible to simplify and drive the strobe discharge vessel in response to an outage.

In addition, although a switching transformer was used to generate the high pressure required to discharge drive the strobe discharge tube, it is of course also possible to employ other high voltage generation circuits.

As described above, in the present invention, a strobe discharge tube having a high luminance light emitting property is used as an emergency exit induction lamp, so that the visible distance is long even during a haze caused by a fire, and the operation time by a commercial standby power supply is greatly improved, so that it has a safe evacuation time and is safe. It can be evacuated and driven only during power outages, which can reduce power waste and lamp replacement costs.

In addition, the present invention is equipped with a function for self-diagnosing and displaying the defective battery and the abnormality of the charging device can always manage the system in an optimal state, and can always test the operation of the system at a long distance.

In the above, the present invention has been illustrated and described with reference to specific preferred embodiments, but the present invention is not limited to the above-described embodiments, and the present invention is not limited to the spirit of the present invention. Various changes and modifications can be made by those who have

Claims (6)

Rechargeable battery for emergency spare power supplying DC voltage to the system in case of power failure, and converting AC commercial power to DC in normal state and generating constant voltage DC voltage as the first output to charge the battery and at the same time output of battery And a constant voltage power supply unit for supplying each part of the system and generating a zero level signal to a second output during a power failure, and a power failure and battery voltage for generating an emergency exit induction lamp driving signal in response to the zero level signal when the power failure occurs. A monitoring signal, a strobe discharge tube that generates a high brightness flash upon discharge and acts as an emergency exit induction lamp, and a trigger signal of a first cycle set in advance using the DC voltage of the battery when the emergency exit induction lamp driving signal is applied; Trigger / high pressure generating means for generating an AC high voltage of a second period that is relatively shorter than one period, and Lamp light emitting means for converting the AC high voltage applied from the trigger / high pressure generating means into DC and applying it to both ends of the firefighting tube, and discharging the strobe discharge tube in the first period every time the trigger signal is applied, and generating a flash; An emergency exit induction lamp driving system using a strobe discharge tube, characterized in that it consists of an external test unit for artificially blocking the second output of the constant voltage power supply unit for energizing the system. The method of claim 1, wherein the power failure / battery voltage monitoring unit compares the first output and the battery voltage of the constant voltage power supply unit with a reference voltage to generate a high level signal when the power failure is performed and the battery is in a steady state. In case of abnormality, the first comparator for generating the low level signal, the second comparator for generating the same logic output as the first comparator, and the output terminal are connected in common with the output of the second comparator, so that the second comparator A third comparator for generating the same high level signal as the second comparator when the power level is determined by determining an output level, and a fourth comparator for generating a low battery warning signal when the first comparator generates a low level signal; And generating the emergency exit induction lamp driving signal as a trigger / high pressure generating means when the second and third comparators commonly generate a high level signal. Emergency exit guide lights drive system using a strobe discharge tube, characterized in that consisting of a lamp drive request means. 3. The emergency exit induction lamp drive system according to claim 2, further comprising low battery warning means for displaying a low battery warning in response to the low battery warning signal. (Correction) The method according to claim 1, wherein the trigger / high pressure generating means comprises: first square wave generating means for generating a square wave of the first period in response to an emergency exit induction light driving signal and the second period in response to an emergency exit induction light driving signal; A second square wave generating means for generating a square wave of; a trigger signal generating means for generating a trigger signal for driving the strobe discharge tube at a first period based on the first square wave; and the voltage in response to the second square wave. An emergency exit induction lamp driving system using a strobe discharge tube, characterized in that the high-pressure generating means for converting to the AC high voltage of the second cycle. The method of claim 1, wherein the lamp light emitting means is AC-DC switching means for converting the AC high voltage applied from the trigger / high pressure generating means to DC and the DC-voltage of the high voltage periodically by the AC-DC conversion means A first auxiliary power source for receiving and applying the strobe discharge tube to both ends of the strobe discharge tube, and a second auxiliary power source periodically supplied with a high voltage DC voltage by the AC-DC conversion means, one end of which is connected to a grid of the strobe discharge tube; And a trigger means for triggering the strobe discharge tube by discharging the charge of the second auxiliary power source whenever a trigger signal is applied to discharge the strobe discharge tube by the first auxiliary power source. Emergency exit induction light drive system. An emergency exit induction lamp driving system for driving a system and an emergency exit induction lamp by a DC emergency standby power supply in the event of a power failure, comprising: a power failure monitoring means for generating an emergency exit guidance light drive signal in response to a power failure state, and a stroboscopic for inducing an emergency exit during a power failure; A triggering signal generating means for periodically generating a trigger signal in response to a discharge tube, the emergency exit induction light driving signal, and a boosting step for boosting the emergency standby power supply to a high pressure in response to the emergency exit induction light driving signal Means and trigger means for triggering the strobe discharge tube whenever the trigger signal is applied to discharge the strobe discharge tube additionally.