WO2018190478A1 - 적외선 열화상을 이용한 지능형 불꽃 검출 장치 및 방법 - Google Patents
적외선 열화상을 이용한 지능형 불꽃 검출 장치 및 방법 Download PDFInfo
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- WO2018190478A1 WO2018190478A1 PCT/KR2017/010195 KR2017010195W WO2018190478A1 WO 2018190478 A1 WO2018190478 A1 WO 2018190478A1 KR 2017010195 W KR2017010195 W KR 2017010195W WO 2018190478 A1 WO2018190478 A1 WO 2018190478A1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J1/00—Photometry, e.g. photographic exposure meter
- G01J1/02—Details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/0014—Radiation pyrometry, e.g. infrared or optical thermometry for sensing the radiation from gases, flames
- G01J5/0018—Flames, plasma or welding
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J1/00—Photometry, e.g. photographic exposure meter
- G01J1/02—Details
- G01J1/04—Optical or mechanical part supplementary adjustable parts
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/0022—Radiation pyrometry, e.g. infrared or optical thermometry for sensing the radiation of moving bodies
- G01J5/0025—Living bodies
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/02—Constructional details
- G01J5/025—Interfacing a pyrometer to an external device or network; User interface
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/60—Analysis of geometric attributes
- G06T7/62—Analysis of geometric attributes of area, perimeter, diameter or volume
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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
- G08B17/125—Actuation by presence of radiation or particles, e.g. of infrared radiation or of ions by using a video camera to detect fire or smoke
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J2005/0077—Imaging
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/48—Thermography; Techniques using wholly visual means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/48—Thermography; Techniques using wholly visual means
- G01J5/485—Temperature profile
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/10—Image acquisition modality
- G06T2207/10048—Infrared image
Definitions
- the present invention relates to an intelligent flame detection apparatus and method using an infrared thermal image, and more particularly, by combining an infrared thermal imager and an infrared thermal image processing technology with an existing flame detection sensor, the flame signal received from the flame detection sensor is
- the present invention relates to an intelligent flame detection apparatus and method using an infrared thermal image, which can improve the accuracy of a fire alarm by enabling accurate recognition of whether a spark is allowed or artificial.
- a flame detector that can detect even small flames is used, and this flame detector provides advantages for early detection of fire and response to fires. It is widely used.
- the flame in general, in the event of a fire, the flame exhibits unique combustion characteristics, one of which is the emission of specific electromagnetic waves, which is the principle of flame detection.
- the flame emits ultraviolet rays (185 nm to 260 nm) and infrared rays (4.3 ⁇ m to 4.4 ⁇ m) by CO 2 resonance radiation.
- the detection of the fire alarm is a principle of the flame detector.
- the flame detector ultraviolet / infrared detector, three-wavelength infrared detector, etc.
- these are combined with the sensors to suit the use environment to increase the accuracy of fire recognition, reducing non-fire report and more sophisticated It allows you to carry out fire detection.
- the flame detector uses a method of reducing the non-fire report by setting the sensitivity and time according to the size of the flame, for example, the size and holding time of the detector in various non-fire report conditions such as gas lighter, gas burner, lighting, etc. Set the operation status.
- IR3 method a three-wavelength flame detector (referred to as IR3 method) using a CO 2 resonance emission characteristic which is widely used as a flame detector.
- the three-wavelength flame detector includes: three infrared optical filters 220 1 selectively transmitting infrared rays in three wavelength bands (4.0 ⁇ m, 4.4 ⁇ m, 5.0 ⁇ m) that are CO 2 resonance emission bands. , 220 2 , 220 3 ); Three infrared sensors 240 1 , 240 2 , and 240 3 which receive infrared rays transmitted through the respective optical filters; Three signal amplifiers 250 1 , 250 2 , 250 3 having a filter for passing only a flicker frequency component of 1 to 10 Hz out of the outputs of the respective infrared sensors 2401, 2402, and 2403.
- the fire determination unit and the control unit 260 are configured to determine that there is only one fire and to send a fire signal to the alarm signal output unit 270.
- the infrared three-wavelength flame detector has a high selection performance against the flame and does not respond to artificial lighting such as natural light, fluorescent lamps, sodium lamps, mercury lamps, etc.
- artificial lighting such as natural light, fluorescent lamps, sodium lamps, mercury lamps, etc.
- the fire detection method using a thermal imaging camera has been used in recent years, but similarly, when there are high temperature facilities in an industrial site or various electric heaters, lighting, and heaters can be recognized as flames, the presence or absence of a flame only by temperature. It is difficult to accurately determine the size, and there is a limit to use as a real flame detector.
- the conventional flame detector is a product that uses a single or a mixture of infrared and ultraviolet sensors, and has two main types: ultraviolet / infrared detector (UV / IR) and three-wavelength flame detector (IR3).
- UV / IR ultraviolet / infrared detector
- IR3 three-wavelength flame detector
- FIG. 2 shows the appearance of a three-wavelength flame detector that only recognizes flames by reading waveforms of flame characteristics using three infrared sensors and a filter of 4.4 ⁇ ⁇ near band
- FIG. It shows the appearance of UV / IR detector that only recognizes flame by using together with UV sensor.
- Patent Document 1 Republic of Korea Patent Registration No. 10-0882236 (2009.01.30)
- Patent Document 2 Republic of Korea Patent Registration No. 10-1372989 (2014.03.05)
- the present invention has been made to solve the above-mentioned conventional problems, by combining an infrared thermal camera module and an infrared thermal image processing technology in the existing flame detector, and through the mutual cooperation of these intelligently of the flame It is an object of the present invention to provide an intelligent flame detection apparatus and method using infrared thermal imaging that can significantly reduce the non-fire alarm and greatly improve the accuracy of the fire alarm by making it possible to accurately determine the type and the risk.
- One embodiment of the present invention for achieving the above object is a housing; A flame detection sensor mounted on the housing and detecting a flame in the monitoring area; An infrared thermal camera mounted on the housing and acquiring a thermal image of the surveillance region; And image processing to determine whether the flame in the surveillance region is a flame caused by a true fire or an artificially permitted flame through the thermal image processing captured by the infrared thermal imaging camera and the sensing data processing of the flame detection sensor.
- the flame sensor is characterized in that it is adopted as a flame detector using ultraviolet or infrared rays, or a three-wavelength flame detector.
- control board includes: a flame detection signal receiving unit for receiving a flame detection signal of the flame detection sensor; An image processing unit configured to perform image processing to determine whether the flame in the surveillance area is a flame caused by a real fire or an artificial flame allowed in advance based on a thermal image of a flame photographed by an infrared thermal imager; A fire determination unit that determines whether a fire signal is generated by comparing the size of the flame with a reference value; An alarm signal output unit configured to output a fire alarm signal according to a fire occurrence signal output from the fire determination unit; Communication module for communication with the smart device possessed by the user; Characterized in that consisting of.
- control board is an infrared thermal imaging camera when the image processing results are not permitted flame, infrared rays emitted from the flame is greater than the allowable infrared value, or ultraviolet rays emitted from the flame are greater than the allowable ultraviolet ray value. Is controlled to take a picture to determine whether a person exists in the surveillance area.
- the artificial flame input by the user through the communication module is characterized in that registered in the control board as a flame allowed in advance.
- Another embodiment of the present invention for achieving the above object is: i) detecting a flame present in the surveillance area in the flame detection sensor; ii) obtaining a thermal image of the surveillance region in the infrared thermal camera Doing; iii) performing image processing in the image processing unit of the control board based on the obtained thermal image to determine whether the flame in the surveillance region is a flame caused by a real fire or an artificial flame allowed in advance; iv) determining whether a fire signal is generated by comparing the size of the flame according to image processing with a reference value in the fire determination unit; And v) outputting a fire alarm signal from the alarm signal output unit according to the fire occurrence signal output from the fire determination unit. It provides an intelligent flame detection method using an infrared thermal image, comprising a.
- the artificial flame is input by using a smart device possessed by the user, and the artificial flame input by the user through the communication module is registered in the control board as a previously allowed flame. Characterized by preceding the step.
- the step of performing image processing in step iii) comprises: checking the presence of a flame in the surveillance area; Checking the coordinates and the size of the flame if there is a flame in the monitoring area, and then determining whether the confirmed flame is a flame caused by a true fire or an artificial flame allowed in advance; Outputting a non-fire signal if it is determined that the flame is permitted; Characterized in that consists of.
- the step of outputting the non-fire signal and converts the infrared or ultraviolet value from the current flame detection sensor to a background value, after which the infrared or ultraviolet value from the flame detection sensor is a value above the converted background value In other words, the image processing is performed again from the beginning.
- monitoring is performed using an infrared thermal camera.
- the step of checking whether or not a person exists in the area is characterized in that it is carried out.
- the image processing unit checks the coordinates of the person, and determines the proximity of the person and the flame and constantly monitors the change in the size of the flame. If is increased than the reference value, the fire determination unit is characterized in that for outputting a fire signal for a fire alarm.
- the fire determination unit for the fire alarm for the fire alarm It characterized in that the output.
- the present invention provides the following effects through the means for solving the above problems.
- artificially used flames can be recognized as flames that can be excluded from the fire alarm situation, thereby accurately detecting whether the currently recognized flame is a fire or artificial flame. Can improve the accuracy of the fire alarm accordingly.
- ordinary flames such as lamps, gas burners, stoves, and heaters in various flame monitoring spaces (for example, offices, industrial sites, etc.) can be exception-processed by the user by presetting them as smart devices. You can greatly reduce your financial expenses.
- the welding flame, the torch, etc. which are used by the worker, can be recognized as the working flame along with the recognition of the person, thereby significantly reducing the non-fire report.
- the non-fire rate which is a disadvantage of the existing flame detectors, can be drastically reduced, so that the economic loss can be greatly reduced (for example, the huge economic loss due to the interruption of the factory line in the event of a fire alarm can be reduced).
- FIG. 1 is a configuration diagram showing a three-wavelength flame detector as an example of the prior art
- 3 is an image showing the appearance of a conventional ultraviolet / infrared detector
- FIG. 4 is a view showing an intelligent flame detector using an infrared thermal image according to an embodiment of the present invention
- FIG. 5 is a view showing an intelligent flame detector using an infrared thermal image according to another embodiment of the present invention.
- FIG. 6 is a control block diagram of an intelligent flame detection apparatus using an infrared thermal image according to the present invention
- FIG. 7 is a flowchart showing an intelligent flame detection method using an infrared thermal image according to the present invention.
- 13 and 14 are thermal image showing a human detection process using an infrared thermal camera
- 16 is a thermal image showing a situation where the flame spread more and the worker left the site
- 17 to 19 are thermal image images sequentially showing a process in which a new flame is generated in addition to the flame allowed in the monitoring region, and the size (area) of the flame gradually becomes larger than the reference value.
- FIG 4 shows an embodiment of an intelligent flame detector using an infrared thermal image according to the present invention.
- the intelligent flame detector 10 has a structure in which the flame sensor 14 and the infrared thermal imaging camera 16 is mounted on the same line in the housing 12 Is provided, the flame sensor 14 and the infrared thermal imaging camera 16 is to detect the flame at the same monitoring angle.
- the flame detection sensor 14 in one embodiment of the present invention is adopted as an ultraviolet or infrared (UV / IR) detector, that is, a flame detection sensor using ultraviolet or infrared.
- UV / IR ultraviolet or infrared
- FIG 5 shows another embodiment of an intelligent flame detector using an infrared thermal image according to the present invention.
- the intelligent flame detector 10 also has a structure in which the flame sensor 14 and the infrared thermal imaging camera 16 is mounted on the same line in the housing 12 It is provided, the flame sensor 14 and the infrared thermal imaging camera 16 is to detect the flame at the same monitoring angle.
- the flame sensor 14 is adopted as a three-wavelength flame detector (IR3), and can be used by mounting a variety of infrared sensor types.
- IR3 three-wavelength flame detector
- the intelligent flame detector according to each embodiment of the present invention includes a control board 20 embedded in the housing 12.
- control board 20 is equipped with a processor and a memory for processing the thermal image captured by the infrared thermal imaging camera and the sensing data of the flame detection sensor, etc., so that the flame in the monitoring area is caused by a true fire Image processing is performed to determine whether the flame is or is a previously permitted artificial flame.
- the control board 20 as shown in the accompanying Figure 6, the flame detection signal receiving unit 21 for receiving the flame detection signal of the flame sensor 14 and the infrared thermal imaging camera 16
- An image processing unit 22 which performs image processing to determine whether a flame in the surveillance area is a flame caused by a real fire or an artificial flame allowed in advance based on a thermal image of the flame;
- a fire determination unit 23 for judging whether a fire signal is generated by comparing the size (area) of a flame with a reference value, and an alarm signal output for outputting a fire alarm signal according to the fire occurrence signal output from the fire determination unit 23. It is comprised including the part 24.
- control board 20 is equipped with a communication module 25 such as Wi-Fi or Bluetooth (Wifi / Bluetooth) for communication with a smart device (smart phone, tablet PC, laptop, etc.) possessed by the user.
- a communication module 25 such as Wi-Fi or Bluetooth (Wifi / Bluetooth) for communication with a smart device (smart phone, tablet PC, laptop, etc.) possessed by the user.
- the flame detection sensor 14 primarily detects the flame when there is a flame in the monitoring area, and transmits the detected signal to the flame detection receiver 21 of the control board 20.
- the infrared thermal camera 16 receives a flame detected from the flame detection receiver 21 and starts to acquire a thermal image of the surveillance area.
- the infrared thermal camera 16 when the flame detection signal detected by the flame detection sensor 14 is transmitted to the flame detection receiver 21, the image of the surveillance area by the signal of the control board 20 Start to acquire.
- the control board 20 controls the infrared thermal imaging camera 16 to start capturing whether a person is present in the surveillance area.
- the communication module 25 of the control board 20 is for communication with a smart device (smart phone, tablet PC, notebook, etc.) possessed by the user, through which the user manipulates the smart device to control the control board 20 Control setting can be made.
- a smart device smart phone, tablet PC, notebook, etc.
- the fire determination unit 23 compares the size (area) of the flame with a reference value, and then generates a fire signal when the size (area) of the flame increases than the reference value, and the alarm signal output unit 24. ) Serves to output an alarm signal according to the fire occurrence signal of the fire determination unit 23.
- FIG. 6 is a control block diagram of an intelligent flame detection apparatus using an infrared thermal image according to the present invention
- FIG. 7 is a flowchart illustrating an intelligent flame detection method using an infrared thermal image according to the present invention.
- the flame is present in the monitoring area in the flame detection sensor 14, the flame is primarily detected, and the detected signal is transmitted to the flame detection receiver 21 of the control board 20.
- the infrared thermal camera 16 starts to acquire a thermal image of the surveillance area according to a signal from the control board 20, and the image processing unit 22 based on the obtained thermal image. Perform some image processing.
- the image processing unit 22 first check the presence or absence of a flame in the surveillance region (S101), and if there is a flame, check the coordinates and the size of the flame (S102), It is determined whether the flame is allowed (S103).
- the permitted flame is not a true flame caused by a fire, but an artificial flame allowed in advance (for example, a working flame in an industrial field, a halogen light, a gas lighter, a gas burner, a high temperature temperature apparatus, various electric heaters in the vicinity). , Heat generating lights, heaters, etc.).
- Such artificial fireworks can be registered in advance at any point before image processing as a flame allowed by the user, such as the memory of the control board 20 through a smart device (smart phone, tablet PC, laptop, etc.). .
- the artificial flame input by the user through the communication module 25 is registered in the control board as a previously permitted flame.
- a user when a user inputs an artificial flame that can occur in a predetermined fire monitoring area through a smart device app (S104), the user inputs an artificial flame to the memory of the control board 20 through the communication module 25.
- the flame is registered in advance as the permitted flame (S105).
- the image processing unit 22 performs image processing to determine whether the flame is a real fire or a flame (an artificial flame) that is allowed in advance based on the image captured by the infrared thermal camera 16.
- a non-fire signal is output (S107).
- the image processing unit 22 converts the infrared or ultraviolet value currently received from the flame sensor 14 into the background value of the thermal image, and then the infrared or ultraviolet value from the flame sensor 14 is converted. If a value is equal to or greater than the set background value, the same image processing described above is additionally performed from the beginning.
- step S106 when it is determined that the flame is not allowed, or when the current infrared value is larger than the allowable infrared value, or when the current ultraviolet value is larger than the allowable infrared value, it is not immediately determined whether there is a fire. Instead, the process enters a step of recognizing whether a person exists in the surveillance area (S108).
- the infrared thermal camera 16 is photographed to determine whether a person exists in the surveillance area (S109).
- the image processing unit 22 determines that a person exists in the surveillance region based on the thermal imaging signal of the infrared thermal imaging camera 16 (S110), the image processing unit 22 adjusts the coordinates of the person. In addition, the change of the size (area) of the flame is constantly monitored as well as the proximity between the person and the flame (S111).
- the flame is not allowed in step S111 above, but a person is near and judges that the working flame is not increased in size. Always on monitoring.
- the reason for checking whether a person exists is the determination of the flame existing in the surveillance zone, that is, a working flame that is an artificial flame, It is to recognize whether the flame is a real flame or a real fire flame in the absence of a person, and to determine whether the fire occurred in a human situation (eg arson).
- the technique of recognizing a person in a specific image is classified as a very difficult technique in the related research field, but the technique using a visible image as a representative technique is mainly used for detecting pedestrians, and thus various poses and actions are taken. It can be said that it is impossible to recognize humans, and the detection process is complicated and takes a long time, and the false detection rate is high due to the influence of shadow, ambient color, external environment (light condition, etc.).
- the present invention can accurately implement human detection using infrared thermal imaging.
- a specific temperature band in the thermal image captured by the infrared thermal camera 16 34 ⁇ 37 °C
- a specific temperature band in the thermal image captured by the infrared thermal camera 16 34 ⁇ 37 °C
- the temperature by distance is measured and analyzed as shown in FIG. 14 to which the reference temperature of the human detection technique using the infrared thermal image is attached.
- a human detection temperature is selected and used as a proper value for the face region reference maximum value of 36.5 ° C and an average value of 32.7 ° C.
- the human detection technology using the infrared thermal image used in the present invention recognizes the human body as the body temperature
- the human detection technology is easy to detect human beings even in an external environment such as dust, fog, and smoke without being affected by shadows caused by lighting.
- the minimum required resolution for detecting a person is 6 pixels long, and even a low-resolution infrared thermal camera can easily detect a person in a large surveillance area and process photographed images quickly.
- background processing using the threshold value the human detection process can be made simple and fast.
- the image processing unit 22 continues to monitor the size (area) of the flame (S112), the fire determination unit 23 the size of the flame (area) Is continuously compared with a reference value (threshold value) (S113).
- the fire signal is generated. It is generated (S114).
- the alarm signal output unit 24 outputs an alarm signal.
- the fire determination unit 23 determines that the new flame appears in addition to the working flame and the size (area) of the flame is larger than the reference value, and the fire signal outputs the fire alarm signal.
- Flame_01 in the accompanying Figures 15 and 16 indicate the user-set allowable flame, the flame allowed If only Flame_01 is present in the surveillance region, the infrared or ultraviolet value (size) of the flame detected by the flame sensor 14 becomes a background value and is determined as a general non-fire state.
- Flame_02 indicates a new flame in Figures 15 and 16 attached to the flame as the new flame Flame_02 is generated
- the sensor recognizes the flame again by recognizing the infrared or ultraviolet value over the background value.In the infrared thermal image, the sensor judges that the flame is other than the allowed flame and observes the size (area).
- the alarm signal output unit 24 outputs a fire alarm signal.
- the alarm signal output unit 24 outputs a fire alarm signal.
- the artificially used flame existing in the fire monitoring area can be recognized as an allowed flame which can be excluded from the fire alarm situation, so that the currently recognized flame is a fire-producing flame or artificially. It can accurately recognize whether it is a flame, thereby significantly reducing non-fire alarms and improving the accuracy of fire alarms.
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Abstract
Description
Claims (13)
- 하우징;상기 하우징에 장착되어, 감시영역 내의 불꽃을 감지하는 불꽃감지센서;상기 하우징에 장착되어, 상기 감시영역에 대한 열화상 영상을 획득하는 적외선 열화상 카메라; 및상기 적외선 열화상 카메라에서 촬영된 열화상 영상처리와 상기 불꽃감지센서의 센싱 데이터 처리를 통하여, 상기 감시영역 내의 불꽃이 진정한 화재로 인한 불꽃인지 아니면 사전에 허용된 인위적인 불꽃인지를 파악하는 이미지프로세싱을 수행하는 제어보드;를 포함하여 구성된 것을 특징으로 하는 적외선 열화상을 이용한 지능형 불꽃 검출 장치.
- 청구항 1에 있어서,상기 불꽃감지센서는 자외선 또는 적외선을 이용한 불꽃감지기로 채택되거나, 3파장식 불꽃검출기로 채택되는 것을 특징으로 하는 적외선 열화상을 이용한 지능형 불꽃 검출 장치.
- 청구항 1에 있어서,상기 제어보드는:불꽃감지센서의 불꽃감지신호를 수신하는 불꽃감지신호 수신부와;적외선 열화상 카메라에서 촬영된 불꽃에 대한 열화상 영상을 기반으로, 감시영역 내의 불꽃이 진정한 화재로 인한 불꽃인지 아니면 사전에 허용된 인위적인 불꽃인지를 판단하기 위한 이미지프로세싱을 수행하는 이미지 프로세싱부와;불꽃의 크기를 기준값과 비교하여 화재신호를 발생 여부를 판정하는 화재 판단부와;화재 판단부로부터 출력되는 화재발생 신호에 따라 화재 경보신호를 출력하는 경보신호 출력부와;사용자가 소지한 스마트기기와의 통신을 위한 통신모듈;로 구성된 것을 특징으로 하는 적외선 열화상을 이용한 지능형 불꽃 검출 장치.
- 청구항 3에 있어서,상기 제어보드는 이미지프로세싱 결과, 허용된 불꽃이 아니거나, 불꽃에서 발산되는 적외선이 허용 적외선 값보다 크거나, 불꽃에서 발산되는 자외선이 허용 자외선 값보다 클 경우, 상기 적외선 열화상 카메라가 감시영역내에 사람이 존재하는지 여부를 파악하는 촬영을 하도록 제어하는 것을 특징으로 하는 적외선 열화상을 이용한 지능형 불꽃 검출 장치.
- 청구항 3에 있어서,상기 사용자가 소지한 스마트기기를 이용하여 인위적인 불꽃을 입력하면, 상기 통신모듈을 통해 사용자가 입력한 인위적인 불꽃이 사전에 허용된 불꽃으로서 제어보드에 등록되는 것을 특징으로 하는 적외선 열화상을 이용한 지능형 불꽃 검출 장치.
- i) 불꽃감지센서에서 해당 감시영역에 존재하는 불꽃을 감지하는 단계;ii) 적외선 열화상 카메라에서 상기 감시영역에 대한 열화상 영상을 획득하는 단계;iii) 획득된 열화상 영상을 기반으로 제어보드의 이미지 프로세싱부에서 상기 감시영역 내의 불꽃이 진정한 화재로 인한 불꽃인지 아니면 사전에 허용된 인위적인 불꽃인지를 판단하기 위한 이미지프로세싱을 수행하는 단계;iv) 화재 판단부에서 이미지프로세싱에 따른 불꽃의 크기를 기준값과 비교하여 화재신호 발생 여부를 판정하는 단계;v) 화재 판단부로부터 출력되는 화재발생 신호에 따라, 경보신호 출력부에서 화재 경보신호를 출력하는 단계;를 포함하는 것을 특징으로 하는 적외선 열화상을 이용한 지능형 불꽃 검출 방법.
- 청구항 6에 있어서,상기 이미지프로세싱을 수행하는 단계 이전에 사용자가 소지한 스마트기기를 이용하여 인위적인 불꽃을 입력하여, 통신모듈을 통해 사용자가 입력한 인위적인 불꽃이 사전에 허용된 불꽃으로서 제어보드에 등록되는 단계가 선행되는 것을 특징으로 하는 적외선 열화상을 이용한 지능형 불꽃 검출 방법.
- 청구항 6에 있어서,상기 iii) 단계에서의 이미지프로세싱 수행 단계는:감시영역에 대한 불꽃의 유무을 확인하는 단계;감시영역 내에 불꽃이 존재하면 불꽃의 좌표와 크기를 확인한 다음, 확인된 불꽃이 진정한 화재로 인한 불꽃인지 아니면 사전에 허용된 인위적인 불꽃인지를 판단하는 단계;허용된 불꽃으로 판정되면 비화재 신호를 출력하는 단계;로 이루어지는 것을 특징으로 하는 적외선 열화상을 이용한 지능형 불꽃 검출 방법.
- 청구항 8에 있어서,상기 비화재 신호를 출력하는 단계와 함께 현재 불꽃감지센서로부터 들어오는 적외선 또는 자외선 값을 배경값으로 전환하고, 이후 불꽃감지센서로부터 들어오는 적외선 또는 자외선 값이 전환된 배경값 이상의 값으로 들어오면, 상기 이미지프로세싱이 처음부터 다시 수행되는 것을 특징으로 하는 적외선 열화상을 이용한 지능형 불꽃 검출 방법.
- 청구항 8에 있어서,상기 이미지프로세싱 수행 결과,허용된 불꽃이 아닌 것으로 판정된 경우, 또는 현재 적외선 값이 허용 적외선 값보다 클 경우, 또는 현재 자외선 값이 허용 적외선 값 보다 클 경우, 적외선 열화상 카메라를 이용하여 감시영역 내에 사람이 존재하는지 여부를 확인하는 단계가 진행되는 것을 특징으로 하는 적외선 열화상을 이용한 지능형 불꽃 검출 방법.
- 청구항 10에 있어서,상기 감시영역 내에 사람이 존재하는지 여부를 확인하는 단계는 적외선 열화상 카메라에서 촬영된 열화상 내에 특정 온도대역을 필터링하여 사람을 검출하는 동시에 사람의 좌표를 획득하여 이루어지는 것을 특징으로 하는 적외선 열화상을 이용한 지능형 불꽃 검출 방법.
- 청구항 10에 있어서,상기 감시영역에 사람이 존재하는 것으로 확인되면, 이미지 프로세싱부에서 사람의 좌표를 확인하고 사람과 불꽃과의 인접성 파악과 함께 불꽃의 크기 변화를 상시 감시하는 단계가 진행되고, 이후 불꽃의 크기가 기준값보다 증가하면 화재 판단부에서 화재 경보를 위한 화재신호를 출력하는 것을 특징으로 하는 특징으로 하는 적외선 열화상을 이용한 지능형 불꽃 검출 방법.
- 청구항 6에 있어서,상기 감시영역 내에 사람이 존재 유무에 관계없이, 상기 이미지 프로세싱 결과, 감시영역 내의 불꽃 크기와 기준값을 비교하여, 불꽃의 크기가 기준값보다 증가하면 화재 판단부에서 화재 경보를 위한 화재신호를 출력하는 것을 특징으로 하는 특징으로 하는 적외선 열화상을 이용한 지능형 불꽃 검출 방법.
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| KR20160061614A (ko) * | 2014-11-24 | 2016-06-01 | 멀티펠스 주식회사 | 화재 감지 시스템 |
Non-Patent Citations (1)
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| See also references of EP3407034A4 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11080990B2 (en) | 2019-08-05 | 2021-08-03 | Factory Mutual Insurance Company | Portable 360-degree video-based fire and smoke detector and wireless alerting system |
Also Published As
| Publication number | Publication date |
|---|---|
| US11326955B2 (en) | 2022-05-10 |
| CN109073453A (zh) | 2018-12-21 |
| EP3407034A1 (en) | 2018-11-28 |
| JP7211622B2 (ja) | 2023-01-24 |
| MY200415A (en) | 2023-12-24 |
| US20210208001A1 (en) | 2021-07-08 |
| EP3407034B1 (en) | 2022-06-01 |
| KR101767980B1 (ko) | 2017-08-14 |
| CN109073453B (zh) | 2021-03-09 |
| JP2020519847A (ja) | 2020-07-02 |
| EP3407034A4 (en) | 2018-11-28 |
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