KR101573236B1 - Fire detection system - Google Patents
Fire detection system Download PDFInfo
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- KR101573236B1 KR101573236B1 KR1020150086188A KR20150086188A KR101573236B1 KR 101573236 B1 KR101573236 B1 KR 101573236B1 KR 1020150086188 A KR1020150086188 A KR 1020150086188A KR 20150086188 A KR20150086188 A KR 20150086188A KR 101573236 B1 KR101573236 B1 KR 101573236B1
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- fire
- fire detection
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- sensor
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
- G08B17/103—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using a light emitting and receiving device
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S10/00—Lighting devices or systems producing a varying lighting effect
- F21S10/02—Lighting devices or systems producing a varying lighting effect changing colors
- F21S10/023—Lighting devices or systems producing a varying lighting effect changing colors by selectively switching fixed light sources
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/02—Alarms for ensuring the safety of persons
- G08B21/12—Alarms for ensuring the safety of persons responsive to undesired emission of substances, e.g. pollution alarms
- G08B21/16—Combustible gas alarms
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B5/00—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied
- G08B5/22—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission
- G08B5/36—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission using visible light sources
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- General Physics & Mathematics (AREA)
- Business, Economics & Management (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Emergency Management (AREA)
- Analytical Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- General Health & Medical Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Combustion & Propulsion (AREA)
- Electromagnetism (AREA)
- General Engineering & Computer Science (AREA)
- Fire Alarms (AREA)
Abstract
Description
FIELD OF THE INVENTION The present invention relates to a fire detection system, and more particularly, to a fire detection system in which a setting for detecting fire can be easily set and recognized through a sensor unit.
Generally, when a fire occurs, carbon monoxide, carbon dioxide and smoke are generated at the beginning of the fire, and then the flame starts to appear. There have been studies on the alarm system by effectively measuring carbon monoxide, carbon dioxide and flame in accordance with the progress of the fire.
At the beginning of the fire, carbon monoxide is increased by more than 1,000 ppm and carbon dioxide is increased by tens of thousands of ppm. In most cases, the concentration of carbon monoxide and carbon dioxide does not increase.
In order to determine whether or not a fire has occurred, the fire monitoring system disclosed in Japanese Patent Application Laid-Open No. 10-2013-0058244 includes a carbon dioxide sensor array unit including a plurality of carbon dioxide sensors, a sensor node unit for transmitting the measured values from the carbon dioxide sensor array unit, And a receiving unit for receiving the transmitted result value and indicating whether a fire has occurred in the terminal.
With this configuration, there is an advantage that it is possible to easily monitor the occurrence of fire in the early stage of fire by sensing the concentration of carbon dioxide which increases during a fire. However, in order to detect carbon dioxide, it is necessary to install the sensor directly inside the building, and it is not easy to detect quickly even if a fire occurs in an uninstalled place.
In addition, the fire detector of the Korean Patent Registration No. 10-1098969 includes an ultraviolet ray sensor for detecting ultraviolet rays entering the fire detector, an infrared ray sensor for detecting infrared rays entering the fire detector, An amplifying unit for amplifying the pulse signal by a digital signal; It is checked whether the wavelengths of the ultraviolet rays and infrared rays amplified by the amplification unit are included in the wavelength range recognized as a fire in the fire recognition area set in the fire judgment DB, Wealth; An optical sensor for detecting the amount of light entering the fire detector; And a fire sensitivity adjusting unit for changing a reference intensity recognized as a fire in a fire recognition area of an ultraviolet ray and an infrared ray set in the fire judgment DB of the fire judgment unit in conjunction with the light amount recognized by the optical sensor.
The above-mentioned prior art document has an advantage in that fire can be detected even at a long distance by measuring infrared rays and ultraviolet rays generated in a fire, but it is difficult to grasp the size of fire according to the distance
A fire detector that detects a fire at a remote location is installed at a high altitude of 15 to 50 m from the ground so that a fire can be easily detected. Once the installation is completed, the fire manager can not easily know from the outside whether the fire manager is normally operating . In addition, there are a lot of false alarms caused by objects that emit fire or similar energy in the surveillance area. It has become common to set the sensitivity of the sensor to be lower than 30 ~ 50% in order to solve the confusion caused by this false alarm, As a result, even if a misfire occurs, a fire can not be generated quickly and a fatal loss may occur.
For example, in order to prevent false alarms, there has been a case of detecting a bad detector that has lowered the sensitivity of the sensor than the design rule for several years, and fire cases presumed to be arson are frequently occurring. If an automatic fire detector detects fire It would have been possible to immediately detect fire alarms and activate automatic fire extinguishers such as sprinklers, and if fire alarms were notified in real time, the damage to valuable lives and property could be greatly reduced. Such a fire detector should be able to prevent false alarms and detect the exact fire size.
Meanwhile, according to the design rule of the fire detector, a switch for adjusting the sensitivity is provided on one side of the sensor unit in order to adjust the sensitivity. However, since the sensor unit of the fire detector is installed outdoors, the switch must be installed outside the sensor unit. Therefore, it can be an obstacle to waterproof and explosion-proof. Even if the diaphragm sensitivity adjusting switch is installed inside the sensor part, since the case of the sensor part needs to be opened to adjust the sensitivity, it is difficult to guarantee perfect waterproofing and explosion resistance when reassembling.
It is an object of the present invention to provide a fire detection system capable of easily knowing an operation range and an operation state of a fire detection sensor from the outside.
The problems to be solved by the present invention are not limited to the above-mentioned problems. It is to be understood that the present invention may be embodied in many other specific forms without departing from the spirit or scope of the invention.
A system for detecting a fire according to the present invention is a system for detecting a fire, the system comprising: a fire detection sensor unit having a plurality of sensors and LEDs; A controller including a switching unit, a fire detection unit, and an LED driving unit; And a cable connecting the plurality of sensors and the switching unit, wherein the fire detection unit includes a plurality of detection units and a control unit for determining whether a fire has occurred from the sensors of the fire detection sensor unit, One of the LEDs is selected by terminal connection in the switching unit according to the distance between the sensing object and the fire detection sensor unit, and the LED driving unit controls the LED driving unit so that the LED visually displays the setting and the occurrence of fire, A second sensor for sensing the resonance energy of carbon dioxide, a second sensor for detecting a non-fire factor other than the flame, and a second sensor for detecting a non- 3 sensors.
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According to the present invention, there is an advantage in that the distance between the fire detection sensor unit and the object to be detected is divided into a plurality of distances, and the fire detection range is configured differently according to the installed distance, thereby improving the degree of freedom of the detection distance.
In addition, since the operation state of the fire detection system is installed in a fire detection sensor unit which can be seen from outside, there is an advantage that an administrator can visually confirm the operation state according to the fire test from the outside.
In addition, since it is possible to determine whether or not a fire has occurred from the data according to the fire factor and the data according to the non-fire factor, there is an advantage that the malfunction of the fire detection system can be prevented.
In addition, since the fire detection sensor exposed to the outside must have explosion-proof and waterproof structure, it is not necessary to disassemble and assemble the sensor unit according to the setting.
1 shows a fire detection system according to the present invention.
2 shows a fire detection sensor unit of a fire detection system according to the present invention.
3 shows a controller of a fire detection system according to the present invention.
FIG. 4 illustrates a light emission state of the LED according to the operation of the fire detection system according to the present invention.
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the drawings, the size of each element or a specific part constituting the element may be exaggerated, omitted or schematically shown for convenience and clarity of description.
1 shows a fire detection system according to the present invention.
The
The fire detection system senses the resonance energy emitted from the flame at the time of fire in objects such as buildings, facilities, and detects the fire type and fire level and alerts the administrator. For example, when a building is selected as a sensing object, a fire detection sensor unit is installed so as to be within a detection range of the building, and the controller connected to the fire detection sensor unit by a cable detects the type of fire and the degree of fire And outputs an alarm.
2 shows a fire detection sensor unit of a fire detection system according to the present invention.
A fire detection sensor unit according to the present invention includes a cylindrical body BODY, a lens (not shown) on one side thereof, and a printed circuit board (PCB) on which a sensor and an LED are mounted.
Referring to the drawings, the printed circuit board includes sensors 111-1, 111-2, and 111-3 for detecting fire factors such as carbon monoxide and carbon dioxide generated from a fire, LEDs 112-1 and 111-2 for visually displaying status information, -1, and 112-2.
The sensor according to the present invention detects a fire element generated from a fire. The sensor includes a first sensor 111-1 for sensing the resonance energy of carbon monoxide generated in the combustion process of the flame, a second sensor 111-2 for sensing the resonance energy of the carbon dioxide generated in the combustion process of the flame, And a third sensor 111-3 for detecting non-fire factors other than flames, such as arc welding and lighters. The third sensor may be an optical sensor that detects a specific wavelength range.
On the other hand, radiant energy is emitted to the flame caused by the fire. Radiation energy can be expressed by three factors of Stefan-Boltzmann law.
[Equation]
H = Ae? T 4
Where H is the radiant energy per hour, A is the surface area, e is the emissivity of the radiator, sigma is the constant of Stephan Boltzmann and T is the temperature of the radiator.
That is, the radiant energy increases with the temperature value of the object to be copied. The detection of the resonance energy of carbon dioxide will be described as follows.
It utilizes the phenomenon of carbon dioxide resonance radiation present in infrared rays emitted from a flame. Carbon dioxide shows two emission spectral peaks in the near-infrared band, with gray emission and carbon dioxide resonance emission. The presence of flame uses carbon dioxide resonance radiation rather than gray radiation.
The resonance radiation means that the energy emitted by the carbon dioxide in the excited state is absorbed by the other carbon dioxide in the ground state, and the energy released by the excited carbon dioxide is again absorbed by the carbon dioxide in the other ground state, that is, It is a phenomenon that causes energy resonance. These resonant radiation properties are different from heat sources such as heat, lamps, and heat.
When the first sensor and the second sensor react and the third sensor does not react, it is determined that the flame is sensed. When the first sensor and the second sensor react and the third sensor responds Or if the first sensor and the second sensor react, and if the third sensor reacts, there is a high possibility that it is not a flame.
Meanwhile, the fire detection sensor unit is installed to be spaced apart from the fire detection object by a predetermined distance. As an example, it may be installed at a distance of 30 m, 40 m, and 50 m. As such, different distances may cause errors in determining the size of the fire output from the controller. If it is installed at a distance of 30m as the closest distance, even a small flame such as a lighter flame can be recognized as a fire. However, if it is installed at a distance of 50m, it may not be recognized as a fire even if accompanied by a large flame.
In the case of the first sensor and the second sensor, the size, movement, and duration of carbon monoxide or carbon dioxide generated by the fire are measured. When carbon monoxide or carbon dioxide is generated, the resonance energy is measured.
In case of fire, the infrared energy emitted from the fire factor is inversely proportional to the square of the distance. That is, when the distance is doubled, the energy to be measured is reduced to 1/4. For example, assuming that the infrared energy reaching the detector is 100 after a flame generated by ignition of a flame of 330 mm × 330 mm × 50 mm with a size of 330 mm × 330 mm × 50 mm is ignited for one minute, After 50m to 40m forward to the test site, the infrared energy reaching the detector is about 1.2 times closer to the detector, so the magnitude of the arrival energy increases from 100 to 144, .
Therefore, if the energy of the flower source reaching the detector is 100, it can be set to 50m sensitivity, if it is 144, it is 40m sensitivity, and if 196 it is 30m, it can be set to 30m sensitivity.
Meanwhile, it is preferable that the fire detection sensors visually display information indicating that the fire detection sensors are set at different distances, respectively.
The LED comprises a first LED 112-1 and a second LED 112-2 for indicating the operation state of the fire detection system. The driving of the first LED and the second LED will be described later.
3 shows a controller of a fire detection system according to the present invention.
The
The switching unit 131 is connected to a cable. One end of the cable is connected to the fire detection sensor part and the other end of the cable is connected to the switching part of the controller. The
The
In the present invention, three different distances are set for each of the three distances. However, the distances may be divided into a plurality of distances from the fire detection object and the fire detection sensor.
The first to third detection units of the fire detection unit detect whether or not a fire has occurred based on the data sensed from the fire detection sensor unit, and output it to the LED. At the same time, the manager can be alerted to the occurrence of a fire. Such fire alerts can be transmitted over wireless or wireline.
The LED driving unit 133 outputs a signal to the LED according to the operating state of the fire detection system.
The fire alarm unit 134 receives a fire occurrence signal from any one of the first to third detection units, and outputs a fire alarm to the manager. Such fires can be output to the administrator via wired or wireless.
Meanwhile, the switching unit may be installed in the fire detection sensor unit. However, the fire detection sensor unit is installed to be exposed to an external environment and is installed at a higher position.
FIG. 4 illustrates a light emission state of the LED according to the operation of the fire detection system according to the present invention.
The first LED and the second LED according to the present invention emit light of different colors. The LED may be selected from any one of red, green, blue, and yellow.
Referring to the drawing, when the first distance is set, only the first LED lights up during monitoring, and the first LED flashes during a fire. When set to the second distance, both the first LED and the second LED are turned on during monitoring, and the first LED is turned on during a fire. When the third distance is set, the second LED lights up during monitoring, and the second LED flashes during a fire. Here, the first to third distances represent different distances. For example, the first distance is 30 m, the second distance is 40 m, and the third distance is 50 m.
Accordingly, it is preferable that the first LED should select red to visually indicate the emergency, and the second LED should preferably select blue or green.
In the fire detection system according to the present invention, the installed fire detection sensor unit displays the color of the LED, and the manager checks whether the fire detection system is operating normally, whether the fire detection object and the fire detection sensor unit are spaced apart, It is easy to recognize whether the distance is set or the alarm state is normally displayed.
While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the present invention is not limited to the disclosed exemplary embodiments, but various changes and modifications may be made by those skilled in the art without departing from the scope of the present invention.
100: Fire detection system
110: a fire detection sensor unit
111-1, 111-2, and 111-3: first, second, and third sensors
112-1 and 112-2: first and second LEDs
120: Cable
130: controller
131:
132: Fire detector
132-1, 132-2, and 132-3: first, second,
133:
134: Fire alarm
SBT: Fire monitoring object
Claims (5)
The system includes a fire detection sensor unit having a plurality of sensors and LEDs; A controller including a switching unit, a fire detection unit, and an LED driving unit; And a cable connecting the plurality of sensors and the switching unit,
Wherein the fire detection unit includes a plurality of detection units and a controller for determining whether a fire has occurred from the sensor of the fire detection sensor unit,
Wherein the plurality of detection units are selected by terminal connection in the switching unit according to a distance between the fire detection object and the fire detection sensor unit,
The LED driver outputs a signal according to the operation state of the fire detection system to the LED so that the LED visually displays the setting and the occurrence of the fire at the distance,
Wherein the plurality of sensors comprises a first sensor for sensing resonance energy of carbon monoxide, a second sensor for sensing resonance energy of carbon dioxide, and a third sensor for detecting a non-fire factor other than a flame. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020150086188A KR101573236B1 (en) | 2015-06-17 | 2015-06-17 | Fire detection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020150086188A KR101573236B1 (en) | 2015-06-17 | 2015-06-17 | Fire detection system |
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| KR101573236B1 true KR101573236B1 (en) | 2015-12-01 |
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| KR1020150086188A KR101573236B1 (en) | 2015-06-17 | 2015-06-17 | Fire detection system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106837138A (en) * | 2017-01-17 | 2017-06-13 | 成都华固特种门窗有限公司 | A kind of fire prevention door equipment of use in passageway for fire apparatus |
| KR101784755B1 (en) * | 2016-12-26 | 2017-10-16 | 한림대학교 산학협력단 | Apparatus for learning painting, method thereof and computer recordable medium storing program to perform the method |
| WO2018164344A1 (en) * | 2017-03-08 | 2018-09-13 | 주식회사 아이알티코리아 | Fire monitoring system for preventing false alarm of fire detection device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003217047A (en) * | 2002-01-22 | 2003-07-31 | Nohmi Bosai Ltd | Flame detector |
| JP2009110545A (en) | 1999-12-28 | 2009-05-21 | Hochiki Corp | Flame detector |
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- 2015-06-17 KR KR1020150086188A patent/KR101573236B1/en active IP Right Grant
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009110545A (en) | 1999-12-28 | 2009-05-21 | Hochiki Corp | Flame detector |
| JP2003217047A (en) * | 2002-01-22 | 2003-07-31 | Nohmi Bosai Ltd | Flame detector |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101784755B1 (en) * | 2016-12-26 | 2017-10-16 | 한림대학교 산학협력단 | Apparatus for learning painting, method thereof and computer recordable medium storing program to perform the method |
| CN106837138A (en) * | 2017-01-17 | 2017-06-13 | 成都华固特种门窗有限公司 | A kind of fire prevention door equipment of use in passageway for fire apparatus |
| WO2018164344A1 (en) * | 2017-03-08 | 2018-09-13 | 주식회사 아이알티코리아 | Fire monitoring system for preventing false alarm of fire detection device |
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