KR101544019B1 - Fire detection system using composited video and method thereof - Google Patents

Fire detection system using composited video and method thereof Download PDF

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Publication number
KR101544019B1
KR101544019B1 KR1020130065171A KR20130065171A KR101544019B1 KR 101544019 B1 KR101544019 B1 KR 101544019B1 KR 1020130065171 A KR1020130065171 A KR 1020130065171A KR 20130065171 A KR20130065171 A KR 20130065171A KR 101544019 B1 KR101544019 B1 KR 101544019B1
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South Korea
Prior art keywords
image
fire
smoke
flame
synthesized
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KR1020130065171A
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Korean (ko)
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KR20140143857A (en
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정성진
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박종호
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    • GPHYSICS
    • G08SIGNALLING
    • G08BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00Fire alarms; Alarms responsive to explosion
    • G08B17/12Actuation by presence of radiation or particles, e.g. of infra-red radiation or of ions
    • G08B17/125Actuation by presence of radiation or particles, e.g. of infra-red radiation or of ions by using a video camera to detect fire or smoke

Abstract

More particularly, the present invention relates to a fire detection system and method using synthetic images, and more particularly, to a fire detection system and method using synthesized images, The present invention relates to a fire detection system and a fire detection method using a composite image capable of detecting a possibility of a fire and a fire.

Description

FIELD OF THE INVENTION [0001] The present invention relates to a fire detection system using composite images,
More particularly, the present invention relates to a fire detection system and method using synthetic images, and more particularly, to a fire detection system and method using synthesized images, The present invention relates to a fire detection system and a fire detection method using a composite image capable of detecting a possibility of a fire and a fire.
A fire detector used in normal fire control manages the fire and directs the fire signal directly or indirectly to the manager or the fire department center. At this time, according to the fire signal, the sprinkler, which is a fire extinguishing system inside and outside, is automatically controlled to suppress the fire.
Such a general fire detector is incapable of communicating the fire information to the building user in a short time even though a plurality of receivers are installed inside and outside the building where the fire fighting facility is installed. There is a problem that the place is not delivered.
In addition, a general fire detector is limited to notifying fire detection and fire, and also has a problem that it is difficult to interact with other systems and to interact with each other.
In addition, in the local firefighters' offices, 119 command and control centers are operated, and in case of fire notification or fire recognition, it is possible to recognize the location and surrounding information of fire by using GPS, GIS, etc. However, There is no system.
Accordingly, a system capable of detecting and monitoring fire in real time through a patent registration No. 1175202 (registered on Aug. 13, 2012) has been proposed. However, the above-mentioned prior art detects a fire by sensing the occurrence of flame and smoke, and thus it is impossible to detect whether or not the fire can occur due to a latent heat state in which the temperature is high, even if flame and smoke are not generated.
That is, the conventional fire detection technology has a problem in that it can not prevent a fire because there is no sensing device or method for detecting a latent heat with a high possibility of fire, because it warns the fire only when the temperature rises and smoke and flame are detected.
Also, in the past, technologies for detecting and alarming fire through sensors and images have been mainly made up. However, in such a conventional fire detection and alarm system, the fire detection apparatus through the image recognizes the red clothes or wallpaper as a fire, or recognizes the smoke generated in the cooking process as smoke due to the occurrence of fire, There was a very low problem.
SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and it is an object of the present invention to provide an image reading apparatus and a thermal image reading method, The present invention provides a fire detection system and method using a composite image that can detect a change in temperature even when a fire is not generated and accurately detect the possibility of a fire.
The present invention includes the following embodiments in order to achieve the above object.
A preferred embodiment of the fire detection system using the composite image according to the present invention includes a real image camera which is installed within a predetermined number of zones and photographs the corresponding zone to transmit a real image signal, A photographing unit having a thermal image camera for transmitting an image; A sensor unit having a flame sensor for detecting flame and a smoke sensor for detecting smoke; And an image sensing unit for sensing whether or not a fire has occurred through a synthesized image obtained by combining a real image and a thermal image of the photographing unit and a sensing signal of the sensor unit. The image sensing unit senses a thermal image and a real image, A video mixing means for mixing; Object recognizing means for separating and recognizing sparks and smoke among a plurality of objects included in the composite image of the image mixing means; And a control unit for checking whether or not a flame and smoke are detected from the sensor unit when an object of flame and smoke is recognized in the composite image separated by the object recognition unit and, when both the flame and smoke are detected in the synthesized image and the sensor unit, Wherein the control unit checks the color of the synthesized image by the temperature and compares the color of the synthesized image with the set temperature to determine whether there is a latent heat with a possibility of generating fire if the flame and the smoke object are not recognized in the synthesized image And the image mixing means combines the real image and the captured image of the same frame in the thermal image to synthesize the object photographed in the thermal image in the real image.
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In another embodiment of the present invention, the fire detection system further includes image conversion means for converting the image synthesized by the image mixing means into a digital synthetic image and applying the synthesized image to the control means.
In another embodiment of the present invention, the fire detection system includes an image storage unit for storing a composite image transmitted from the image sensing unit; A video server for posting and transmitting the synthesized video stored in the video storage unit on-line; And a portable terminal registered with the image server and receiving the composite image.
In another embodiment of the present invention, the portable terminal receives and outputs a fire alarm signal transmitted from the control server from the video server.
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In another embodiment of the present invention, the fire detection system receives a fire alarm signal including a position signal for identifying a fire occurrence area from the image sensing unit, issues an alarm, and displays a fire alarm And an administrator terminal for displaying the information.
A preferred embodiment of a fire detection method using a composite image according to the present invention is a method for capturing an image of the same frame in a real image and a thermal image captured by a real image camera and a thermal image camera, To an image processing step; An object recognition step of classifying each object included in the composite image in the image processing step and recognizing flame and smoke; A sensor interlocking step of interlocking with a sensing signal of a sensor when flame and smoke are sensed in the object recognition step to determine a fire occurrence and a fire occurrence possibility; And a communication step of issuing and transmitting a fire occurrence or a latent heat alarm if it is determined that the occurrence of a fire or a latent heat is occurred in the sensor interlocking step, and after the object recognition step or the sensor interlocking step, Determining whether a temperature of the object included in the composite image is equal to or higher than a predetermined temperature when it is determined that the object of the composite image is not recognized because no fire has occurred; And a latent heat alarm step of issuing a latent heat alarm that is likely to develop into a fire if the temperature of the object represented by different colors according to temperature in the composite image is higher than or equal to the set temperature in the determination of the set temperature desirable.
In another embodiment of the present invention, the image processing step includes an image capturing step of capturing an image of the same frame in a real image captured by the real image camera and a thermal image captured by the thermal image camera, and converting the captured image into an image; An image mixing step of mixing the images captured in the image capturing step and synthesizing the two images into one image; An image converting step of converting the synthesized image into a digital image signal in the image mixing step; And a transmission step of transmitting the synthesized image converted into the digital image signal through the cable and the network in the image conversion step.
In another embodiment of the present invention, the object recognition step may include a preprocessing step of comparing a previous image and a current image using an image filter in a synthesized image synthesized in the image processing step to determine an object added or changed in the current image ; An object separating step of separating and recognizing objects of flame and smoke by applying characteristics of flame and smoke in the current image after the preprocessing step; A flame determination step of determining whether the object separated in the object separation step is a flame; And a smoke judgment step of detecting whether the object separated in the object separation step is smoke.
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As described above, since latent heat of an object can be confirmed by mixing a real image captured by a real image camera and a thermal image captured through a thermal image camera, the present invention can detect and alert the occurrence of a fire and the possibility of a fire It is possible to prevent damage to human lives and property due to fire.
1 is a schematic view for explaining a concept of a fire detection system and method using a composite image according to the present invention,
FIG. 2 is a block diagram showing a fire detection system using a composite image according to the present invention. FIG.
FIG. 3 is a flowchart illustrating a fire detection method using a composite image according to the present invention.
4 is a flowchart showing an image processing step in a fire detection method using a composite image according to the present invention.
FIG. 5 is a flowchart showing an object recognition step and a communication step in a fire detection method using a composite image according to the present invention.
6 is a photograph showing an example of a synthetic image in a fire detection method using a composite image according to the present invention.
Hereinafter, preferred embodiments of a fire detection system and method using a composite image according to the present invention will be described in detail with reference to the accompanying drawings.
1 is a schematic view for explaining the concept of a fire detection system and method using a composite image according to the present invention.
Referring to FIG. 1, a fire detection system and method using a composite image according to an embodiment of the present invention detects a fire occurrence and a fire occurrence probability through flame and smoke detection of a sensor unit 13 and image sensing of a photographing unit 11 And an image processing unit including an image sensing unit 12. The image processing unit detects the presence or absence of a fire and the possibility of a fire and transmits the detected fire to the administrator terminal 50 and / or the image server 30 to be confirmed by the web or the portable terminal 40 or the like.
Particularly, in the present invention, the actual image photographed by the photographing unit 10 is mixed with a thermal image for photographing a change in color according to the temperature to detect the temperature change, the presence of flame and smoke, It is possible to accurately detect whether a fire has occurred or not in conjunction with a signal.
In addition, according to the present invention, a temperature change of an object included in an image captured through a mixed image of an actual image and a thermal image can be confirmed, and the presence or absence of latent heat can be recognized. Accordingly, the present invention determines the possibility of a fire by setting a temperature at which a fire may occur in the latent heat (hereinafter referred to as a set temperature) in order to determine the possibility of fire caused by the latent heat.
Here, latent heat means that the object is not flame or smoke, but has a temperature higher than the normal ambient temperature and capable of being developed into a fire. The object corresponds to all objects included in the photographed image (a thing in which a fire can occur).
In order to achieve the above object, the present invention provides an image sensing apparatus for comparing an image sensed by a photographing unit 11 for photographing an analog image and a thermal image, a sensor unit 13 for sensing a flame and smoke, An administrator terminal 50 for receiving and alarming images and fire detection and latent heat alarms transmitted from the image processing member 10; (20, 20 ') for storing an image transmitted from the image processing member via a cable and a network, and an image storing unit (20, 20') for storing the image stored in the image storing unit A server 30 and a portable terminal 40 for receiving a fire or latent heat generation signal from the video server 30.
Here, the image processing member including the sensor unit 13, the photographing unit 11, and the image sensing unit 12 may be installed in each of the areas divided into one or more sections in the building, And / or transmits the sensing signal and the sensed image to the image storage unit 20.20 '.
The image sensing unit 12 may be configured to mix the actual image and the thermal image transmitted from the photographing unit 11 by mixing the control means 121 (see FIG. 2) and the communication means 125 (see FIG. 2) And recognizes an object such as a flame and recognizes the actual smoke and flame to receive a detection signal of the sensor unit 13 to determine whether a fire has occurred or not.
The image sensing unit 12 transmits the mixed image to the image storing unit 20 or 20 'and the image server 30 through the administrator terminal 50 and / or the cable and the network, 40 so that the composite image can be viewed through the wired / wireless communication terminal.
The manager terminal 50 may provide a unique code to the photographing unit, the sensor unit, and the image sensing unit 12, which are installed for each zone, to generate a fire from any one of the image sensing units 12 When a signal or a latent heat alarm is received, an inherent code of the image sensing unit 12 is checked to confirm the installed area, and alerting the fire occurrence and the latent heat together with the position information.
The image server 30 provides the composite image stored in the image storage units 20 and 20 'and the network image storage units 20 and 20' to the web or the portable terminal 40 through a wire / wireless communication network. Particularly, the image server 30 preferably transmits the composite image and a fire occurrence and fire possibility signal to the registered portable terminal 40 (smart phone, telephone, desktop, notebook, PDA, PDP, netbook) .
Hereinafter, a more specific configuration will be described in detail with reference to the accompanying drawings.
2 is a block diagram illustrating an image processing member in a fire detection system using a composite image according to the present invention.
2, in the fire detection system using the composite image according to the present invention, the image processing member 10 includes a sensor unit 131 including a flame sensor 131 for detecting flame and a smoke sensor 132 for detecting smoke, A photographing unit 11 having a real image camera 111 for photographing a real image and a thermal image camera 112 for photographing a thermal image; And an image sensing unit 12 for alarming occurrence of fire and latent heat.
The image sensing unit 12 includes an image mixing means 122 for synthesizing a real image and a column image, an image conversion means 123 for converting the mixed image into a digital signal, A communication means 125 for transmitting the composite image and the alarm signal through the manager terminal 50 and / or the cable and the network, the above-described flame sensor (not shown) 131) and a smoke sensor (132), receives a recognition signal of a flame and / or a smoke object of the object recognizing means (124), and judges the possibility of fire occurrence and fire occurrence .
The flame sensor 131 is located remotely from the control means 121 and detects a surrounding flame. The flame sensor 131 senses a high temperature at a specific position at an ambient temperature and applies a sensing signal to the control means 121.
The smoke sensor 132 is located remotely from the control means 121 and senses the surrounding smoke. The smoke sensor 132 includes a light emitting element and a light receiving element as an optical sensor, for example, and applies a smoke generation signal to the control means 121 when the amount of light received by the smoke is reduced.
The real image camera 111 photographs a surrounding image in real time, for example, CCTV, and applies the captured image to the control means 121 in real time.
The thermal imaging camera 112 senses a temperature change in the area to be photographed and photographs the thermal image to transmit the thermal image to the control unit 121. [ Here, it is preferable that the real image camera 111 and the thermal image camera 112 photograph in the same direction in the same direction.
The thermal image sets a reference temperature value, collects temperature information within the corresponding area, and sets different colors for the respective temperatures. Accordingly, each of the objects included in the image is expressed with different densities and colors depending on the temperature.
The image mixing means 122 combines the actual image and the thermal image photographed by the real image camera 111 and the thermal image camera 112, respectively, and combines them into one image. At this time, the image mixing unit 122 combines the captured image of one of the real image and the column image.
The image converting means 123 converts the image synthesized by the image mixing means 122 into a digital image. For example, the image converting unit 123 integrates a plurality of composite images into one image frame, and simultaneously converts the image into a digital image file such as MPEG or AVI.
The object recognizing means 124 classifies and recognizes flames and / or smoke among the synthesized images and applies them to the control means 121.
The communication unit 125 transmits the composite image to the image storage unit 20 or 20 'and / or the administrator terminal 50.
The control means 121 controls the image mixing means 122 to mix the actual images and the thermal images taken by the thermal imaging camera 112 and the real imaging camera 111 to mix the images, (122) sequentially applies the mixed image to the image transforming means (123) and the object recognizing means (124). Further, the control means 121 controls the communication means 125 to transmit the composite image of the digital format converted by the image conversion means 123 to the image storage unit 20, 20 'and / or the administrator terminal 50 . Here, the video server 30 displays the composite image stored in the image storage units 20 and 20 'on the web or transmits the composite image to the portable terminal 40 via the wired / wireless communication network.
If an object classified into flame or smoke is detected among the objects included in the composite image, the control unit 121 checks the detection signals of the flame sensor 131 and the smoke sensor 132, and if flame and smoke are detected And issues a fire alarm to the administrator terminal (50).
In addition, the control means 121 does not recognize objects of flame and smoke in the synthesized image, and there is no flame and smoke detection signals in the flame sensor 131 and the smoke sensor 132, And a temperature higher than the ambient temperature. When an object that generates heat at a higher temperature than the surrounding objects and surrounding objects is detected among the objects included in the composite image, the control unit 121 determines whether or not the object is latched by comparing with the set temperature, And a fire alarm is issued.
The administrator terminal 50 includes a terminal control unit 51 for receiving a fire alarm signal and a latent heat alarm signal of the image sensing unit 12 and issuing an alarm and an alarm control unit 51, A display 53 for displaying a fire alarm and a fire occurrence position under the control of the terminal control unit 51 and a display 53 for displaying the fire alarm and the fire occurrence position under the control of the terminal control unit 51. The image server 30 and / (Not shown).
When the fire alarm and the latent heat alarm including the inherent code are received from the image sensing unit 12, the terminal control unit 51 confirms the unique code assigned to each image sensing unit 12, And displays the area where the fire occurrence and the latent heat alarm have occurred.
In addition, the terminal control unit 51 controls the alarm unit to issue a visual and / or audible alarm.
The alarm unit 52 includes a buzzer for generating an alarm sound or a light emission display means for outputting a light emission signal.
The manager terminal 50 may receive the fire alarm and the latent heat alarm of the image sensing unit 12 and may control the communication unit 54 to transmit the fire alarm and the latent heat alarm to the image server 30. More preferably, the manager terminal 50 may receive the composite image of the image sensing unit 12 and control the communication unit 54 to relay the composite image to the image storage unit 20 or 20 '.
The present invention can be variously modified according to the designer's intention as described above. That is, in the above description, the composite image of the image sensing unit 12 is directly transmitted to the image storage unit. However, in another embodiment, the administrator terminal 50 collectively receives the combined image, It may be relayed to the units 20 and 20 '.
The terminal control unit 51 controls the display 53 to display the location of a fire or a region where latent heat is generated and controls the communication unit 54 to transmit a fire occurrence signal to the video server 30. [
The image server 30 transmits a fire occurrence signal of the image sensing unit 12 and / or the administrator terminal 50 to the registered portable terminal 40.
The present invention includes the above-described configuration. Hereinafter, operations achieved through the above-described configuration will be described in detail with reference to FIGS. 3 to 6. FIG.
3 is a flowchart illustrating a fire detection method using a composite image according to the present invention.
Referring to FIG. 3, a fire detection method using a composite image according to an exemplary embodiment of the present invention includes an image processing for mixing and converting images captured by a real image camera 111 and a thermal image camera 112, (S20) of recognizing sparks and smoke by classifying each object included in the mixed image in the image processing step (S10); and recognizing the flame and smoke in the object recognition step (S20) A sensor interlocking step (S30) for judging a fire occurrence and a possibility of a fire in conjunction with a sensing signal of the sensor when smoke is detected; and a fire occurrence or fire occurrence if it is judged that the fire occurrence and the possibility of fire occur in the sensor interlocking step (S30) And an alarm and communication step (S40) for transmitting a fire incapable alarm.
In the image processing step S10, the real image and the thermal image captured by the real image camera 111 and the thermal image camera 112 are mixed, the mixed image is converted, To be stored in the units 20 and 20 '. The composite image stored in the image storage unit 20 or 20 'is transmitted to the portable terminal 40 registered in the image server 30 in real time or at predetermined time intervals.
The object recognizing step S20 recognizes flame and smoke by analyzing all the objects included in the synthesized image of the image processing step S10. Here, the image processing member 10 compares a composite image captured in real time with a previously captured composite image to determine whether a color corresponding to a temperature change photographed on an object or a column image that is not included in the previous image is different from the previous image And recognizes whether it is flame and / or smoke.
The thermal imaging camera 112 senses the temperatures of all the objects located within the area to be photographed, and outputs images photographed so as to have different colors for respective temperatures. Therefore, if a heated or cooled object is present in the composite image as compared with the previous image, it is photographed in a different color from the previous one. Therefore, the image processing member 10 recognizes flame or smoke by comparing the previous image (or the reference image obtained by photographing the normal state) with the current image.
 If the flame or smoke is recognized in the object recognizing step S20, the sensor interlocking step S30 may determine whether a fire has occurred by interlocking with the detection signals of the flame sensor 131 and the smoke sensor 132 installed in the corresponding area .
The alarm and communication step S40 is a step of transmitting a fire occurrence signal to the portable terminal 40 registered through the image server 30 when it is determined that a fire has occurred in the sensor interlocking step S30.
In the fire detection method using the composite image according to the present invention, the image processing step will be described with reference to FIG. 4, and the object recognition and communication step S40 will be described with reference to FIG.
4 is a flowchart illustrating an image processing step in a fire detection method using a composite image according to the present invention.
Referring to FIG. 4, the image processing step includes an image capturing step S11 for capturing the same frame in the real image and the thermal image and converting the captured image into an image, and mixing the images captured in the image capturing step S11 An image converting step S13 of converting a plurality of synthesized images into a digital image signal in the image mixing step S12; (S14) for transmitting the synthesized image converted into the digital image signal.
The image capturing step S11 is a step in which the control unit 121 applies the real image of the real image camera 111 and the thermal image of the thermal image camera 112 to the image mixing unit 122, And capturing an image frame photographed in the same time zone. This is illustrated in the photograph attached to Fig.
6 is a photograph showing an example of a synthetic image in a fire detection method using a composite image according to the present invention.
Referring to FIG. 6, FIG. 6 (a) is an image capturing an actual image, and FIG. 6 (b) is a capture image of a thermal image. The image mixing means 122 captures the real image and the thermal image captured at the same time and position in the real image and the thermal image applied to the control means 121, ).
6 (a) shows an image taken by the real image camera 111, and FIG. 6 (b) shows a thermal image taken by a thermal image camera. Referring to FIG. 6 (b), each object included in the image is displayed in different colors for different temperatures.
The image mixing step S12 is a step of controlling the image mixing means 122 by the control means 121 to combine the two captured images. Here, the image mixing means 122 combines the real image capture image and the thermal image capture image under the control of the control means 121, and synthesizes the synthesized image as a single image to apply to the control means 121. This is as shown in Fig. 6 (c). Referring to FIG. 6C, in the composite image, the real image image and the thermal image image are synthesized, and a thermal image of an object having a temperature different from that of the surrounding object is synthesized in the background of the real image image.
The image conversion step S13 is a step in which the control means 121 controls the image conversion means 123 to convert the mixed image into a digital image file in the image mixing step S12. The image conversion means 123 converts the composite image applied from the control means 121 into a digital image signal. That is, the image converting unit 123 converts the capture image of the real image and the thermal image of the analog system into a digital image file.
The image transmission step S14 is a step in which the control unit 121 transmits the synthesized image converted by the image conversion unit 123 to the administrator terminal 50 and / To the storage units 20 and 20 '.
The control means 121 transmits the synthesized image converted from the digital image format by the image conversion means 123 to the manager terminal 50 via the communication means 125. [ The manager terminal 50 transmits the composite image received from the image sensing unit 12 to the image storage unit 20 or 20 '.
Here, the image server 30 transmits the composite image stored in the image storage unit 20 or 20 'to the registered portable terminal 40. Accordingly, the user can confirm in real time whether or not a fire occurs at a specific location through the composite image provided by the image server 30. [
In the present invention, the object recognition step (S20), the sensor interlocking step (S30), and the communication step (S40) are sequentially performed after the above-described image processing step. Hereinafter, the entire process from the object recognition step to the communication step S40 will be described with reference to FIG.
FIG. 5 is a flowchart illustrating details of an object recognizing step (S20) to a communication step (S40) in a fire detection method using a composite image according to the present invention.
Referring to FIG. 5, the object recognition step S20 includes a pre-processing step S21 for determining an object added or changed in a previous image and a current image using an image filter, An object separating step (S22) of separating and adding the added or changed object and separating and recognizing objects of flame and smoke by applying the characteristics of flame and smoke, a flame judging step of judging whether or not the separated object in the object separating step (S22) A judgment step S23 and a smoke judgment step S24 for judging whether or not the object separated in the object separation step S22 is smoke.
In addition, the sensor interlocking step S30 checks the detection data of the flame sensor 131 and the smoke sensor 132 when one of flame and smoke is judged in the flame judgment step S23 and the smoke judgment step S24 .
The alarm and communication step S40 may include a fire occurrence determination step S41 for determining whether a fire has occurred by checking a sensing signal of the sensor in the sensor interlocking step S30, And a fire alarm step (S42) for sending a fire alarm signal to the administrator terminal (50) if it is determined that the fire alarm has occurred.
In addition, the communication step S40 may determine whether the temperature of the object included in the composite image is equal to or higher than the set temperature, if it has not been determined as flame and smoke after the sensor interlocking step S30 or after the object recognition step S20 And a latent heat alarm step S44 for warning the latent heat when it is determined that the set temperature is equal to or higher than the set temperature in the set temperature determination step S43.
The preprocessing step S21 may include a step of determining whether the composite image synthesized by the object recognizing unit 124 in the image mixing unit 122 is included in the reference image captured and synthesized at the previous time by the control unit 121 Is a step of comparing objects that do not exist. Here, the object recognizing means 124 recognizes that the synthesized image synthesized by the image mixing means 122 is included in the previous image (reference image taken in the normal environment) through the image filter under the control of the control means 121 Check for objects or colors.
The object separating step S22 is a step of separating the flame and the smoke object included in the composite image by the object recognizing means 124 under the control of the control means 121. [ If the composite image includes an object different from the previous image in the preprocessing step S21, the control means 121 controls the object recognition means 124 to separate objects not included in the previous image, And whether the object matches the characteristic of the smoke.
In the flame determination step S23, the control unit 121 determines whether an object set as a flame is included among the objects separated from the composite image.
In the smoke determination step S24, the control unit 121 determines whether an object set as smoke is included among the objects separated from the composite image.
Here, the characteristics of the object for the smoke and flame are stored in its own memory, and the control means 121 compares the characteristics of the object separated from the composite image with the stored smoke characteristic and flame characteristic to determine whether it is smoke or flame .
The characteristics of the smoke and flame are classified into the characteristics of the object in the thermal image, and the characteristic data that can be distinguished from other objects are stored in the memory of the control means 121. Therefore, the control means 121 can recognize the flame and / or smoke by comparing the stored characteristic data on flame and smoke in the thermal image and the object separated by the object recognition means 124. [
When the flame and / or smoke are detected in the flame determination step (S23) and the smoke determination step (S24), the control means (121) controls the flame sensor (131) and the smoke sensor The process of confirming the recognized flame and smoke through the composite image is performed. Otherwise, if no flame and smoke are detected in the flame determination step S23 and the smoke determination step S24, a set temperature step S43 for comparing the temperature and the set temperature in the separated object is performed.
The sensor interlocking step S30 is a step in which the control means 121 receives the detection signals of the flame sensor 131 and the smoke sensor 132 and confirms whether flame or smoke is generated. The flame sensor 131 senses whether a flame is generated in the room and applies the flame sensor 131 to the control unit 121. The smoke sensor 132 senses whether smoke is generated in the room and applies the sensed result to the control unit 121 . Accordingly, the control unit 121 receives the detection signal of the flame sensor 131 and the smoke sensor 132, determines whether the flame and smoke are generated, and proceeds to the alarm and communication step S40.
In the fire occurrence determination step S41, it is determined that the flame and / or smoke are generated in the flame and smoke recognition determination steps S23 and S24 by the control means 121. In the sensor interlocking step S30, If the same judgment result is obtained, it is judged that a fire has occurred.
The fire alarm step S42 is a step of transmitting an alarm signal including a unique code to the manager terminal 50 when it is determined that a fire has occurred in the fire occurrence determination step S41. Here, the manager terminal 50 controls the alarm unit 52 to issue a buzzer, confirms the corresponding position through the unique code of the image sensing unit 12 included in the fire alarm signal, and displays it on the display 53 Control to display the area where the fire occurred. In addition, the manager terminal 50 transmits a fire occurrence signal to the video server. Then, the video server 30 transmits a fire alarm signal to the registered portable terminal. The registered portable terminal may be a manager or a tenant or a head of the household where the fire occurred.
If it is determined that the smoke or flame object is not recognized from the composite image after the object recognizing step (S20) or the fire occurrence determining step (S41), and the fire is not generated, the control means (121) Proceed to step.
In the setting temperature determination step S43, the control unit 121 checks an object displayed in a different color from the previous image in the composite image, and compares the temperature of the object with the set temperature. The control means 121 determines whether the color of the object is similar to the color set at a temperature similar to or higher than the color of the set temperature.
If it is determined that the temperature of the object is higher than or equal to the set temperature in step S44, the control unit 121 determines that there is a possibility that the object can be developed into a fire, . Here, the control unit 121 transmits a latency alarm signal to the administrator terminal 50 together with a unique code. Accordingly, the manager terminal 50 issues a latent heat alarm, and outputs the location information of the area where the latent heat alarm is issued through the display 53 through the unique code.
Similarly, the manager terminal 50 transmits a fire alarm and a latent heat alarm signal to the video server 30 in the fire alarm step S42 and the latent heat alarm step S44. Therefore, the image server 30 transmits a fire alarm and a latent heat alarm signal to the registered portable terminal 40 so that a fire or latent heat alarm can be checked through the portable terminal 40 even if the administrator or the tenant is at a remote place do.
As described above, the present invention improves the accuracy of the fire alarm by detecting fire alarm by interlocking the synthesized image and the sensor, and recognizing the latent heat by the color change by the temperature by the thermal image, It is very effective in preventing fire.
It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention as defined in the following claims And changes may be made without departing from the spirit and scope of the invention.
10: image processing member 11:
12: alarm means 13:
20, 20 ': Image storage unit 30: Image server
40: portable terminal 50: administrator terminal
51: terminal control unit 52:
53: Display 111: Real image camera
112: thermal image camera 121: control means
122: image mixing means 123: image converting means
124: object recognition means 125: communication means
131: Flame sensor 132: Smoke sensor

Claims (11)

  1. A photographing unit including a real image camera installed in each of a plurality of predetermined areas to photograph a corresponding area and transmitting a real image signal and a thermal image camera for transmitting a thermal image displayed in different colors according to temperature;
    A sensor unit having a flame sensor for detecting flame and a smoke sensor for detecting smoke; And
    A synthesized image obtained by synthesizing a real image and a thermal image of the photographing unit, and an image sensing unit for determining whether a fire has occurred through a sensing signal of the sensor unit,
    The image sensing unit
    An image mixing means for mixing a thermal image and a real image, which are applied by the photographing unit;
    Object recognizing means for separating and recognizing sparks and smoke among a plurality of objects included in the composite image of the image mixing means; And
    When an object of flame and smoke is recognized in the composite image separated by the object recognition means, whether or not the flame and smoke are sensed from the sensor unit and if fire and smoke are detected in the synthesized image and the sensor unit, And an alarming control means,
    Wherein the control unit determines a latent heat having a possibility of fire generation by comparing the temperature of the synthesized image with the set temperature if the spark and the smoke object are not recognized in the synthesized image,
    The image mixing means
    Wherein a composite image of a real image and a thermal image is synthesized to synthesize an object photographed in a thermal image in a real image.
  2. delete
  3. The system of claim 1, wherein the fire detection system
    Further comprising image converting means for converting an image synthesized by the image mixing means into a digital synthesized image and applying the synthesized image to the control means.
  4. The system of claim 1, wherein the fire detection system
    An image storage unit for storing a composite image transmitted from the image sensing unit;
    A video server for posting and transmitting the synthesized video stored in the video storage unit on-line; And
    And a portable terminal registered with the image server and receiving the composite image.
  5. 5. The portable terminal as claimed in claim 4,
    Wherein the fire alarm signal transmitted from the control server is received from the image server and is output.
  6. delete
  7. The method of claim 1, wherein the fire detection system
    Further comprising an administrator terminal for receiving a fire alarm signal including a position signal for identifying a fire occurrence area from the image sensing unit to issue an alarm and displaying a fire alarm together with a position on a display, .
  8. An image processing step of capturing an image of the same frame in a real image and a thermal image captured by a real image camera and a thermal image camera, converting the captured image into an image to generate a composite image, and transmitting the synthesized image to a video server;
    An object recognition step of classifying each object included in the composite image in the image processing step and recognizing flame and smoke;
    A sensor interlocking step of interlocking with a sensing signal of a sensor when flame and smoke are sensed in the object recognition step to determine a fire occurrence and a fire occurrence possibility; And
    And a communication step of issuing and transmitting a fire occurrence or a latent heat alarm when it is determined that any one of a fire occurrence and a latent heat occurrence is detected in the sensor interlocking step,
    If it is determined that the smoke or flame object is not recognized in the composite image after the object recognizing step or the sensor interlocking step and no fire occurs, it is determined whether the temperature of the object included in the composite image is equal to or higher than the set temperature Determining a temperature; And
    And a latent-heat alarm step of generating a latent-heat alarm that is likely to develop into a fire if the temperature of the object represented by different colors according to temperature in the composite image is higher than or equal to the set temperature in the determination of the set temperature Fire detection method using.
  9. 9. The method according to claim 8,
    An image capturing step of capturing an image of the same frame in the thermal image captured by the real image camera and the thermal image captured by the thermal image camera and converting the captured image into an image;
    An image mixing step of mixing the images captured in the image capturing step and synthesizing the two images into one image;
    An image converting step of converting the synthesized image into a digital image signal in the image mixing step;
    And a transmitting step of transmitting the synthesized image converted into the digital image signal through the cable and the network in the image conversion step.
  10. 9. The method according to claim 8, wherein the object recognition step
    A preprocessing step of comparing a previous image and a current image using an image filter in the composite image synthesized in the image processing step to determine an object added or changed in the current image;
    An object separating step of separating and recognizing objects of flame and smoke by applying characteristics of flame and smoke in the current image after the preprocessing step;
    A flame determination step of determining whether the object separated in the object separation step is a flame; And
    And determining whether the object separated in the object separation step is smoke.
  11. delete
KR1020130065171A 2013-06-07 2013-06-07 Fire detection system using composited video and method thereof KR101544019B1 (en)

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