KR100526143B1 - Apparatus for informing an emergency exit used laser beam - Google Patents

Abstract

The present invention relates to an emergency exit guide device using a laser beam, and a power supply unit for supplying a direct current power to the overall device; A laser beam generator for guiding the emergency exit by outputting a laser beam in an emergency exit direction; It consists of a light emitting diode and a phototransistor pair, and controls the conduction of the phototransistor according to the light output of the light emitting diode to apply the DC power supplied from the power supply to the laser beam generator to output the laser light output of the laser beam generator. A photocoupler for driving; A heat sensor for detecting a temperature, comparing the detected temperature with a reference temperature, and outputting a low or high binary signal according to the comparison value; It comprises a first drive gate for outputting a drive signal for controlling the light output of the light emitting diode of the photocoupler according to the binary signal output from the thermal sensor by firing a laser beam with excellent brightness and directivity in the event of a fire It is intended to guide people to the location of the exit safely and effectively.

Description

Emergency exit guide device using laser beam {Apparatus for informing an emergency exit used laser beam}

The present invention relates to an emergency exit guide apparatus using a laser beam, and more particularly to an emergency exit guide apparatus using a laser beam to detect the change in the amount of light according to the heat and toxic gas generated when a fire occurs to guide the emergency exit through the laser beam in the event of a fire. will be.

In places where there are many floating populations such as subways, underground malls, and buildings, emergency exits are installed to evacuate people in the event of a disaster such as a fire, and a signboard is provided to inform people of the emergency exit direction.

Typically, such emergency exit signs are provided with emergency lights, and the emergency lights use emergency batteries that are independent of the power supply in case the power is cut off by a fire.

However, the conventional emergency exit guide plate to which the emergency light is applied has a serious problem of failing to serve as a case where the intensity of the emergency light is weak and a power failure occurs at night, or when it is difficult to secure a field of view due to the toxic gas accompanying the fire.

Therefore, the present inventors have studied a method that can reliably inform people of the direction of emergency exit even when it is difficult to secure a vision due to a fire at night or a power failure or accompanying toxic gas at the time of fire. Has focused on the use of laser beams with very high brightness and directivity by focusing very high light.

The present invention has been invented under the above-described object, and provides an emergency exit guide apparatus using a laser beam that detects heat generated when a fire occurs and, when determined to be a fire, emits a laser beam to guide people to an emergency exit. The purpose.

Still another object of the present invention is to provide an emergency exit guide apparatus using a laser beam that detects a change in quantity of light caused by toxic gas accompanying a fire and fires a laser beam to guide people to an emergency exit when it is determined that a fire has occurred. will be.

According to an aspect of the present invention for achieving the above object, the emergency exit guide device using a laser beam according to the present invention includes a power supply for supplying a direct current power to the entire apparatus; A laser beam generator for guiding the emergency exit by outputting a laser beam in an emergency exit direction; It consists of a light emitting diode and a phototransistor pair, and controls the conduction of the phototransistor according to the light output of the light emitting diode to apply the DC power supplied from the power supply to the laser beam generator to output the laser light output of the laser beam generator. A photocoupler for driving; A heat sensor for detecting a temperature, comparing the detected temperature with a reference temperature, and outputting a low or high binary signal according to the comparison value; And a first driving gate outputting a driving signal for controlling the light output of the light emitting diode of the photocoupler according to the binary signal output from the thermal sensor.

Therefore, when it is determined that the fire occurs by detecting the heat generated when the fire occurs, it is possible to guide people to the emergency exit direction by firing a laser beam.

According to an additional aspect of the present invention, there is provided an emergency exit guide apparatus using a laser beam according to the present invention, comprising: an optical sensor detecting a light amount and outputting a current corresponding to the detected light amount; A transistor configured to receive a current output from the optical sensor as a base current and to conduct a current between the collector and the emitter when the current applied to the base is greater than or equal to the reference current; And a second driving gate configured to output a driving signal for controlling the light output of the light emitting diode of the photocoupler according to whether the collector and the emitter of the transistor are connected.

Therefore, it is possible to guide the emergency exit direction to people by detecting a change in the amount of light caused by the toxic gas accompanying the fire and firing a laser beam when it is determined that the fire has occurred.

According to an additional aspect of the present invention, the emergency exit guide device using the laser beam according to the invention is characterized in that it further comprises a variable resistor for adjusting the sensitivity of the optical sensor.

Therefore, it has a fluidity that can adjust the sensing sensitivity of the optical sensor for detecting a change in the amount of light caused by the toxic gas accompanying the fire.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily understand and reproduce the present invention.

1 is a circuit diagram according to an embodiment of an emergency exit guide apparatus using a laser beam according to the present invention.

As shown in the figure, the emergency exit guide device 100 using the laser beam according to the present invention includes a power supply unit 110, a laser beam generator 120, a photocoupler 130, a thermal sensor 140 and The first driving gate 150 is included.

The power supply unit 110 supplies DC power to the entire apparatus. The power supply unit 110 preferably uses a DC battery in order to operate normally even when commercial power is cut off due to a fire or the like, and it is preferable to use a battery having a charging function to reduce management costs.

The laser beam generator 120 outputs a laser beam in the emergency exit direction to guide the emergency exit. As shown in Fig. 2, a circuit according to the present invention is constructed and housed in an emergency exit guide plate for guiding an emergency exit of a building, and the like, so that the laser beam is generated in a direction in which the emergency exit is located at an external predetermined position of the guide plate. When a generator is installed, a laser beam with excellent brightness and directivity is fired in the direction of emergency exit to inform people of the emergency exit location.

The photocoupler 130 is composed of a light emitting diode 131 and a phototransistor 132 pair, and controls the conduction of the phototransistor 132 according to the light output of the light emitting diode 130 to control the power from the power supply unit 110. The supplied DC power is applied to the laser beam generator 120 to drive the laser light output of the laser beam generator 120.

That is, the (+) terminal and the (-) terminal of the power supply unit 110 for generating the DC power are connected to the collector and the emitter of the phototransistor 132, respectively, and the (-) terminal of the power supply unit 110 and the photo. Since the laser beam generator 120 is configured to be connected between the transistors 132, when the light emitting diodes 130 do not output light, that is, no fire occurs, DC generated by the power supply unit 110 is generated. When no power is applied to the laser beam generator 120, the laser beam generator 120 is not driven. However, when the light emitting diode 130 outputs light, that is, when a fire occurs, the light emitting diode 130 is removed from the light emitting diode 130. The output optical signal is incident to the base current of the phototransistor 132 and is conducted between the collector and the emitter of the phototransistor 132 so that the DC power generated by the power supply unit 110 is transferred to the laser beam generator 120. Is is to be the laser beam is generated.

The heat sensor 140 detects a temperature, compares the detected temperature with a reference temperature, and outputs a binary signal of low or high according to the comparison value. That is, the thermal sensor 140 detects a thermal change accompanying a fire and outputs a fire signal. In addition to comparing a detection temperature and a reference temperature, the thermal sensor 140 is formed by attaching two metals having different thermal expansion coefficients. By applying a switch, a variety of methods can be used, such as outputting a binary signal of low or high by using the characteristic that the bimetal is separated from the switch contact due to the deformation caused by the temperature rising in the event of a fire. .

The first driving gate 150 outputs a driving signal for controlling the light output of the light emitting diode 131 of the photocoupler 130 according to the binary signal output from the thermal sensor 150. For example, when a bimetal switch is applied to the thermal sensor 140, since the bimetal is separated from the switch contact when a fire occurs, the signal is inverted by using a NOT gate to the first driving gate 150. As a result, the light emitting diode 131 of the photocoupler 130 is emitted.

Accordingly, in the emergency exit guide device using the laser beam according to the present invention, when the heat detection sensor 140 detects a heat change and outputs a signal when a fire occurs, the first driving gate 150 of the photocoupler 130 The driving signal is output to emit light by emitting light from the light emitting diode 131, and the collector and the emitter of the phototransistor 132 are electrically connected to each other according to the light output from the light emitting diode 131. The supplied DC power is applied to the laser beam generator 120, so that the laser beam generator 120 generates a laser beam in the direction in which the emergency exit is located to guide people to the emergency exit position.

According to another aspect of the present invention, the emergency exit guide device 100 using the laser beam according to the present invention may further include an optical sensor 160, a transistor 170, and a second driving gate 180. .

The optical sensor 160 detects an amount of light and outputs a current corresponding to the detected amount of light. That is, the optical sensor 160 measures and outputs a change in the amount of light caused by the toxic gas generated in the event of a fire. When the fire does not occur, there is no toxic gas and thus the amount of light absorbed by the optical sensor 160 has a large amount of current. In the event of a large number of fires, a large amount of toxic gas is generated and the amount of light absorbed by the optical sensor 160 is small, so that the amount of light is detected by various methods such as using a characteristic of generating a small current.

The transistor 170 receives a current output from the optical sensor 160 as a base current, and conducts electricity between the collector and the emitter when the current applied to the base is greater than or equal to the reference current. In other words, when there is no fire, there is no toxic gas and the amount of light absorbed by the optical sensor 160 causes a large amount of current. Therefore, the current applied to the base becomes more than the reference current, and the collector and emitter become conductive. There is a large amount of toxic gas generated in the light sensor 160, the amount of light is absorbed less, so less current is generated, the current is less than the reference current, the collector and emitter is not conducted.

The second driving gate 180 outputs a driving signal for controlling the light output of the light emitting diode 131 of the photocoupler 130 according to whether the collector of the transistor 170 is connected to the emitter. For example, when a fire occurs, a large amount of toxic gas is generated and the amount of light absorbed by the optical sensor 160 is small, resulting in a small amount of current. Therefore, the base current is lower than the reference current, so that the collector and emitter do not conduct, so a LOW signal is applied. The laser beam generator 120 emits light from the light emitting diode 131 of the photocoupler 130 by inverting the signal to a high signal using a NOT gate to the second driving gate 180. To generate a laser beam.

Therefore, the emergency exit guide device using the laser beam according to the present invention detects a change in the amount of light due to toxic gas generated when a fire occurs through the optical sensor 160, and conducts according to the amount of light detected by the optical sensor 160. The second driving gate 180 outputs a driving signal for controlling the light output of the light emitting diode 131 of the photocoupler 130 according to whether the collector 170 and the emitter are connected to each other. When the toxic gas is generated according to the light output from the light emitting diode 131 is connected between the collector and the emitter of the phototransistor 132 is applied DC power supplied from the power supply unit 110 to the laser beam generator 120. Accordingly, the laser beam generator 120 generates a laser beam in the direction in which the emergency exit is located to guide people to the emergency exit location.

At this time, even if a fire does not occur at night, the amount of light detected is small, and even though the light sensor 160 does not generate a fire, a fire may occur and a toxic gas may be determined, thus preventing such malfunction. In order to improve this by manually operating or by configuring a single logic gate circuit that logically outputs one output signal from two input signals instead of the first driving gate 150 and the second driving gate 180. Of course it is also a scope of the present invention. This logical operation is a conventional technique already known and implemented in various ways, so a detailed description thereof will be omitted.

Meanwhile, according to another aspect of the present invention, the emergency exit guide device using the laser beam according to the present invention may further include a variable resistor 190 for adjusting the sensing sensitivity of the optical sensor 160. Therefore, the sensing sensitivity of the optical sensor 160 for detecting a change in the amount of light due to the toxic gas accompanying the fire can be adjusted through the variable resistor 190.

Therefore, it is possible to achieve the purpose of the emergency exit guide device using the laser beam according to the present invention as described above.

As described above, the emergency exit guide device using the laser beam according to the present invention detects heat generated when a fire occurs, and when it is determined that a fire occurs, and / or detects a change in quantity of light caused by toxic gas accompanying a fire, When judged, it has a useful effect of releasing laser beam with excellent brightness and direction to guide people safely and effectively.

In addition, lasers consume less current than conventional emergency lights, so they can be turned on for longer with batteries of the same capacity.

Although the present invention has been described with reference to the accompanying drawings, it will be apparent to those skilled in the art that various modifications may be made therein without departing from the scope of the invention, which is covered by the following claims.

1 is a circuit diagram according to an embodiment of an emergency exit guide device using a laser beam according to the present invention;

2 is a diagram showing an example in which an emergency exit guide apparatus using a laser beam according to the present invention is applied;

<Explanation of symbols for the main parts of the drawings>

100: emergency exit guide device 110: power supply

120: laser beam generator 130: photocoupler

140: thermal sensor 150: the first drive gate

160: optical sensor 170: transistor

180: second driving gate 190: variable resistor

Claims (3)

delete delete A power supply unit supplying direct current power to the overall apparatus; A laser beam generator for guiding the emergency exit by outputting a laser beam in an emergency exit direction; It consists of a light emitting diode and a phototransistor pair, and controls the conduction of the phototransistor according to the light output of the light emitting diode to apply the DC power supplied from the power supply to the laser beam generator to output the laser light output of the laser beam generator. A photocoupler for driving; A heat sensor for detecting a temperature, comparing the detected temperature with a reference temperature, and outputting a low or high binary signal according to the comparison value; A first driving gate outputting a driving signal for controlling the light output of the light emitting diode of the photocoupler according to the binary signal output from the thermal sensor; An optical sensor detecting a light amount and outputting a current corresponding to the detected light amount, the variable sensor adjusting a sensing sensitivity of the light amount; A transistor configured to receive a current output from the optical sensor as a base current and to conduct a current between the collector and the emitter when the current applied to the base is greater than or equal to the reference current; A second driving gate outputting a driving signal for controlling the light output of the light emitting diode of the photocoupler according to whether the collector and the emitter of the transistor are connected; Emergency exit guide device using a laser light comprising a.