KR20100009690A - The apparatus and method of fire sensing by fire logic program - Google Patents
The apparatus and method of fire sensing by fire logic program Download PDFInfo
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- KR20100009690A KR20100009690A KR1020080070433A KR20080070433A KR20100009690A KR 20100009690 A KR20100009690 A KR 20100009690A KR 1020080070433 A KR1020080070433 A KR 1020080070433A KR 20080070433 A KR20080070433 A KR 20080070433A KR 20100009690 A KR20100009690 A KR 20100009690A
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- 238000000034 method Methods 0.000 title claims description 11
- 238000001514 detection method Methods 0.000 claims abstract description 168
- 239000000779 smoke Substances 0.000 claims abstract description 45
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- 230000033001 locomotion Effects 0.000 claims abstract description 23
- 238000012544 monitoring process Methods 0.000 claims abstract description 10
- 230000000737 periodic effect Effects 0.000 claims abstract description 9
- 230000002265 prevention Effects 0.000 claims abstract description 7
- 238000010977 unit operation Methods 0.000 claims description 3
- 238000004364 calculation method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
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- 238000009529 body temperature measurement Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
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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
- G08B17/06—Electric actuation of the alarm, e.g. using a thermally-operated switch
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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
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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
- G08B17/12—Actuation by presence of radiation or particles, e.g. of infrared radiation or of ions
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- 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
- G08B21/18—Status alarms
- G08B21/20—Status alarms responsive to moisture
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
- G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
- G08B25/10—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using wireless transmission systems
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Abstract
The present invention is a combination of a variety of detectors to measure the detector information of motion detection, flame detection, smoke detection, temperature detection (differential, constant temperature) and humidity detection in the position to detect the fire and disaster prevention situation for rapid fire detection It is composed of a video unit, a control unit, a transmission unit, the real-time transmission of the image data photographing the moment of the fire, to analyze the cause of the fire, the detection transmitted from the detection unit to prevent false alarms for non-fire Multi-signals are tabled, weighted to the detected multi-signaled signals to calculate the detection probability of fire, and then periodic monitoring of the detection unit, self-alarm function, and image capture unit according to the fire detection level according to the probability value. Fire detection device with built-in logic program that combines multiple signals of fire that can operate automatically and fire To provide a detection method it is an object of reading.
Description
The present invention is to quickly detect the fire and prevent false alarms for non-fire, and also to analyze the exact cause of the fire when a fire occurs, by analyzing the cause of the fire in real time by transmitting the image data photographing the moment of fire, After calculating the probability of a fire by weighting the various sensed signals detected by the detector to the tabled sensed multiple signals, a table of the sensed multiple signals transmitted from the detector is calculated, and the fire detection level according to the probability value is calculated. Accordingly, the present invention relates to a fire detection device with a built-in logic program that combines periodic monitoring of a detection unit, a self alarm function, and a fire multiple signal that can automatically operate an image capture unit operation, and a fire detection reading method using the same.
Rather than a general fire alarm system that detects and sounds an alarm only after a fire has occurred, a fire prediction alarm system is a system that detects the possibility of a fire accident at a place where a facility is located and informs the user early. The user can be alerted by detecting the progress and triggering the appropriate alarm device for each step.
In the ignition stage of the early stage of fire, various shapes appear depending on the type of fire. The ignition by the electric spark is caught by the flame, the ignition by the heat is accompanied by the fine smoke, and the fire sign is captured by the fine smoke. Can be.
First of all, it catches fire signs by various causes of ignition and detects them quickly.
The ignited fire enters the ignition state by transferring to the flammables. In the ignition state, the fire generates fine smoke rather than a flame at the beginning of the ignition state, at which time the smoke detector may operate to generate a fire alarm. The further stage of the fire is called the spark ignition stage, where the actual fire is invisible but the flame and smoke are visible and the high temperature can be detected in a short time. Can be detected and alarmed. The next stage is the thermal stage, where intense, hot heat is detected and the fire continues to expand outward. At this time, the air is heated and inflated dangerously, and a heat sensor is applied. After this point the ignition fire will be accompanied by smoke, heat and sparks.
In this case, two methods are available: a fire alarm when an internal temperature rises above a certain temperature or an emergency alarm when a sudden rise in temperature is detected.
For example, if a fire occurs due to a spark, the temperature sensor (differential or constant temperature) does not detect the flame in the ignition stage, and after the ignition stage, the fire is activated and the room temperature is above a certain temperature. Detect fire In addition, the smoke detector is not detected even if a lot of heat is generated due to the fire caused by oil, etc., and the fire can be recognized only when the smoke is above a certain concentration.
Meanwhile, conventional conveyers such as a conveyor belt for transporting coal light detect light intensity through a fire detection provided in a predetermined space in order to detect a fire that is generated, and when the detected light intensity is more than a predetermined deviation, fire Sprinkler system for each part of conveyor belt when alarm is issued from the center when fire is detected, including a sensing unit for detecting a fire occurrence, an alarm unit for detecting a fire occurrence, an alarm unit for alarming a fire occurrence, and a spraying unit for extinguishing a fire. The fire was extinguished remotely.
However, in this case, due to the difference in distance between the place where the fire is generated and the place where the fire detection device is installed, the information is not correctly transmitted from the initial stage of the fire occurrence, and there is a problem in that the detection device operates only after the fire has progressed considerably.
In addition, the CCTV is installed to monitor the moment of the fire, but because the CCTV itself is burned after the fire occurs, it was difficult to analyze the cause of the fire due to the loss of video data recorded at the moment of the fire.
In addition, when an abnormality occurs in a fire detector or an alarm device provided in a predetermined space, there is a problem that the entire fire alarm system does not operate properly.
In order to solve the above problems, in the present invention, by transmitting the image data photographing the moment of the fire occurred in real time, it is possible to analyze the cause of the fire, table the sensed multi-signal transmitted from the detection unit, the tabled sensed multi-signal Calculate the detection probability of the fire by adding weights to it, and then combine the fire multiple signals that can automatically activate the periodic monitoring, self-alarm function, and video camera operation according to the fire detection level according to the probability value. The purpose of the present invention is to provide a fire detection device with a logic program and a fire detection method using the same.
In order to achieve the above object, a fire detection device having a built-in logic program combining multiple signals according to the present invention,
It is installed at the position to detect fire and disaster prevention situation for quick fire detection, and it detects fire information by detecting motion, flame detection, smoke detection, temperature detection (differential type, constant temperature type) and humidity when fire occurs. ,
An image capturing unit installed at one side of the sensing unit to capture a fire image in the event of a fire and to transmit the captured image data to a transmission unit through control of a controller;
Connected to the image capturing unit controls to transmit the captured image data to the transmission device, and connected to the sensing unit to table the sensing multi-signals transmitted from the sensing unit, by adding a weight to the tabled sensing multi-signal fire After calculating the detection probability of, the fire detection logic program which operates the monitoring unit's periodic monitoring, self-alarm function, and the image capture unit operation according to the fire detection level according to the probability value is built-in, and according to the fire detection logic program A control unit for controlling the operation of each device;
It is achieved by being connected to the control unit and operated according to a fire detection logic program to transmit image data photographing the moment of the fire to the central disaster center.
In addition, a fire detection reading method using a fire detection device with a built-in logic program combining the multiple fire signal according to the present invention,
Measuring the sensor information of the motion detection, flame detection, smoke detection, temperature detection (differential, constant temperature) and humidity detection in order to prevent false alarms for non-fire (S100),
Taking a fire image through the image capture unit, and transmitting the photographed image data to the control unit (S200),
The control unit is connected to the sensing unit and the sensing multi-signal transmitted from the sensing unit table, calculate the detection probability of the fire by weighting the tabled sensing multi-signal, and then detects according to the fire detection level according to the probability value And controlling the fire to operate the periodic periodic monitoring, self-alarm function, the presence or absence of the operation of the video (S300) and
It is achieved by the step (S400) of transmitting the image data photographed the moment of the fire occurrence to the central disaster center through the transmission unit.
As described above, in the present invention, a transmission node may be installed at every predetermined section to collect status information of each section of the transport facility, and the fire indication may be based on the detected values of smoke, flame, and temperature. Early judgment can be used, so that early action can be taken at an early stage of a fire.
In addition, by transmitting image data photographing the moment of the fire moment, it is possible to easily analyze the cause of the fire in the fire department and related organizations.
Features according to the present invention can detect a variety of fires in a variety of detection, can quickly detect the fire, more accurately through the fire detection logic program to detect the fire, can be divided into four levels of alarm detection alarm In addition, by sending the image data taken in case of fire to a disaster prevention center located at a short distance or to a central disaster center located at a distance, it is possible to analyze the exact cause of the fire when a fire occurs.
In addition, the fire detection logic program can be used to read the cause of the fire.
Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings.
1 is a block diagram showing the components of a
The
The
The
The
The
It is mounted on one side of the sensing unit, as shown in Figure 3, and has a zoom-in function and a rotation function.
Operated through control of the controller, when a fire is detected according to the fire detection logic program, the fire situation and location are captured, and the captured image data is transmitted to the transmission unit.
The image capturing unit according to the present invention is connected with the transmission unit and the control unit, and operation and image data transmission are performed under the control of the control unit.
The
This is made of a PIC one chip microcomputer, the PIC16C711 chip is used in the present invention.
The control unit according to the present invention is connected to the RF chip of the sensing unit on one side of the input terminal, receives a sensing multiple signal transmitted from the sensing unit, and is connected to the image capturing unit on one side of the output terminal, when a fire occurs, driving signals to the image capturing unit It controls to take a fire image to send, and the transmission unit is connected to one side of the output terminal, and transmits the captured image data to the transmission unit.
And a warning
Here, the table of the sensed multiple signals in the control unit as shown in Table 1, when a fire occurs, It is a table listing the sensed multiple signals transmitted from the flame detector, motion detector, smoke detector, humidity detector, and temperature detector (constant temperature, differential type) by code.
That is, in case of fire, first, it divides the presence or absence of motion for a person or object by code to make a table by receiving the signal of motion detector, and receives the signal of flame detector by dividing whether flame has occurred through the flame detector by code. The codes are classified according to the concentration of smoke through the smoke detector, and the codes are classified into the concepts of constant temperature and differential according to the operating characteristics of the temperature detector. It receives the detection signal and divides it into a table, and the humidity sensor divides the ambient humidity change due to the fire by code and receives it as a signal of the humidity sensor.
The control unit calculates a detection probability of a fire by adding weights to the sensed multiple signals tabled using
In other words, the fire is a motion detector, a flame detector, a smoke detector, a temperature detector (differential type, constant temperature type) in order to detect fire in various cases by analyzing the case of fire for rapid fire detection in the ignition stage at the early stage of fire occurrence. And humidity sensors to detect signs of fire. In order to prevent false alarms, the number of fire cases is analyzed before the ignition stage is developed, and the fire generation stage, in which only the smoke does not occur and the smoke generation stage, and the fire generation stage, proceeds further. The fire algorithm analyzes the flame ignition stage where the high temperature is detected in a short time and the thermal stage where the intense and high temperature heat is detected and the fire is continuously extended to the outside.
The fire occurrence state is expressed as the probability of a fire, that is, the fire detection probability through a motion detector, a flame detector, a smoke detector, a temperature detector (differential type, full-temperature type), and a humidity sensor.
Table 2 is divided into the maximum value (Max) and the minimum value (Min) of the fire detection probability, divided by four levels of fire detection level.
As shown in Table 2, when the maximum value of the fire detection probability is 112% or less and the minimum value is 89% or more as the fire detection level, the fire alarm stage (Level 1) is set, and the image photographing unit is operated to produce a fire image. A fire detection logic program is programmed to take a picture and transmit the captured image data to a transmission unit.
Then, if the maximum value of the fire detection probability is 89% or less and the minimum value is 59% or more as the fire detection level, set the quasi-fire level (Level 2) to operate the fire alarm device to notify the outside of the emergency situation. It is programmed in the fire detection logic program to be converted into the operating standby state to operate the photographing unit.
In addition, when the maximum value of the fire detection probability is 59% or less and the minimum value is 44% or more as the fire detection level, the fire preparedness level (Level 3) is set so that the flame is detected, the smoke and the temperature rise, or the flame This is detected and programmed in the fire detection logic program to catch when the humidity drops rapidly and prepare for a fire situation.
Then, if the maximum value of the fire detection probability is 44% or less and the minimum value is 42% or more, set the fire sign capturing step (Level 4) to detect the motion, flame, smoke, and temperature (differential and constant temperature). The fire detection logic is programmed into the fire detection logic program to catch fire signs and alert the fire situation.
In addition, the fire detection logic program is programmed to recognize that there is no fire sign when the fire detection probability is 42% or less.
The
It is installed on one side of the sensing unit, a short-range RF chip for wireless communication with the disaster prevention center located at a short distance (within about 10m), or as a
Hereinafter, a fire detection reading method using a fire detection device with a built-in logic program combining multiple fire signals according to the present invention will be described in detail.
As shown in FIG. 4, the sensing unit measures detection information of temperature, flame, motion detection, smoke detection, humidity, and human operation frequency (S100).
For example, since the flame does not occur at the beginning of the fire, only the smoke is generated, so smoke detection is activated to detect the smoke, and when the flame is ignited, the movement of the person is detected through differential detection, and the flame is detected through the flame detection. Smoke, smoke detection detection, smoke detection, temperature detection, temperature detection.
In the heat stage, intense and high temperature heat is detected through temperature sensing.
Subsequently, the fire image is captured by the image capturing unit and transmitted to the control unit (S200).
Subsequently, the control unit is connected to the sensing unit to table the sensing multiplex signal transmitted from the sensing unit, calculates the detection probability of the fire by weighting the tabled sensing multiplexed signal, and then adjusts the fire detection level according to the probability value. Accordingly, the control unit performs periodic monitoring, self alarm function, and operation of the image photographing unit (S300).
Subsequently, the transmission of the image data photographed the moment of the fire to the central disaster center through the transmission unit (S400).
Then, the process of detecting and reading the fire through the control unit is performed as follows.
First, if the maximum value of the fire detection probability is 44% or less and the minimum value is 42% or more through the fire detection logic program of the controller, the motion detection, flame detection, and smoke detection detection is set as the fire sign detection level (Level 4). Be aware of fires by catching fire signs through differential, temperature and temperature detection.
Then, if the maximum value of the fire detection probability is 59% or less and the minimum value is 44% or more, the fire preparedness level (Level 3) is set so that a flame is detected, smoke and temperature rise, or a flame is detected, Capture when the humidity drops sharply and prepare for a fire.
Subsequently, when the maximum value of the fire detection probability is 89% or less and the minimum value is 59% or more, the quasi-fire level (Level 2) is set, and a fire alarm is operated to notify the outside of the emergency situation and to operate the image photographing unit. Converts to standby mode.
Subsequently, when the maximum value of the fire detection probability is 112% or less and the minimum value is 89% or more as the fire detection level, the fire alarm stage (Level 1) is set, and the image photographing unit is operated to take a fire image, and the captured image. Send data to the transmitter.
In this case, the transmission unit transmits the image data photographed at the moment of the fire to the disaster prevention center of the building located near or to the central disaster center located in a remote place.
Table 3 below shows the fire detection probability and the fire detection readout set in the fire detection logic program as an example.
1 is a block diagram showing the components of a fire detection device with a built-in logic program combining multiple fire signals according to the present invention;
Figure 2 is a block diagram showing the components of the detection unit of the fire detection device with a built-in logic program combining the multiple signals fire according to the present invention,
3 is a perspective view of a fire detection device with a built-in logic program combining multiple signals according to the present invention;
Figure 4 is a flow chart illustrating a fire detection reading method using a fire detection device with a built-in logic program combining multiple fire signals according to the present invention.
※ Brief description of reference numerals ※
10: detection unit 20: image recording unit
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Cited By (17)
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KR100985804B1 (en) * | 2010-04-02 | 2010-10-06 | 주식회사 포드림 | Total disaster management system |
KR101356846B1 (en) * | 2012-03-21 | 2014-01-29 | 한국과학기술원 | Method and system prioritizing event of surveillance camera |
CN104167073A (en) * | 2014-08-27 | 2014-11-26 | 武汉理工大学 | Distributed fire alarming and fire source locating method and device |
CN104361708A (en) * | 2014-12-08 | 2015-02-18 | 太仓市同维电子有限公司 | Smoke intelligent alarm method based on GPON home terminal |
KR20150085757A (en) | 2014-01-16 | 2015-07-24 | 에스케이플래닛 주식회사 | System for generating disaster information, method of generating disaster information and apparatus for the same |
KR20150136962A (en) * | 2014-05-28 | 2015-12-08 | (주)이공감 | Complex fire detector and fire monitoring system comprising the same |
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KR20160056248A (en) * | 2014-11-11 | 2016-05-19 | 주식회사 이엠아이 | A Method for Avoiding Risks Based of Detecting Fire or Burn Sign of A Component or Equipment |
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CN108961650A (en) * | 2018-08-31 | 2018-12-07 | 武汉中正鑫通信有限公司 | A kind of base station fire alarm installation |
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