KR20200041849A - Early fire detection system, server and method based on fire, smoke and video - Google Patents

Abstract

Disclosed are an early fire detection system based on flame, smoke, and video, a server thereof and a method thereof. The early fire detection system based on flame, smoke, and video comprises: at least one flame sensor, at least one smoke sensor, and at least one CCTV installed in each space of a building; and an early fire detection server. The at least one flame sensor and the at least one smoke sensor, when fire or smoke is detected, transmits a detection signal to the early fire detection server and the at least one CCTV transmits a recorded video to the early fire detection server. The early fire detection server comprises: a server communication unit which receives the detection signal from the at least one flame sensor and the at least one smoke sensor and receives the recorded video from the at least one CCTV; a fire determination unit which determines whether a fire has broken out according to a result of determining whether fire or smoke has been detected based on the detection signal transferred from the at least one flame sensor and the at least one smoke sensor and by image processing the recorded video; and a fire alarm unit which transfers a fire alarm to a manager terminal via the server communication unit if the fire determination unit determines that a fire has broken out.

Description

Early fire detection system, server and method based on flame, smoke and video {EARLY FIRE DETECTION SYSTEM, SERVER AND METHOD BASED ON FIRE, SMOKE AND VIDEO}

The present invention relates to an early fire detection system, server, and method based on flame, smoke, and images. In particular, it is possible to determine malfunction by comprehensively analyzing detection signals and images provided from flame sensors, smoke sensors, and CCTVs, thereby determining malfunction. It relates to an early fire detection system, server, and method based on flame, smoke, and images that can minimize and accurately detect early fire, and enable quick and accurate fire notification and evacuation route guidance even in the absence of an administrator.

Early fire detection and evacuation route guidance systems are very important in building management. In order to minimize human damage in the event of a fire, a system that detects flames or smoke early is necessary.

Conventional fire detection systems often use differential detectors that detect heat by air expansion by heat, but when the temperature around the detector is high, it is vulnerable to initial fire detection because the fire has already spread to some extent. .

Accordingly, there is a need for a fire detection system capable of detecting a fire early while reducing malfunctions by solving the problems of the prior art.

The present invention is to solve the above problems, and it is possible to minimize malfunctions and accurately detect early fire by determining whether there is a fire by comprehensively analyzing the detection signals and images provided from the flame sensor, smoke sensor, and CCTV. The aim is to provide an early fire detection system, server and method based on flame, smoke and video that can promptly and accurately guide fire routes and evacuation routes even in the absence of an administrator.

In order to achieve the above object, the flame, smoke and image-based early fire detection system according to an embodiment of the present invention includes at least one flame sensor, smoke sensor and CCTV installed in each space of the building, An early fire detection server, wherein the at least one flame sensor and smoke sensor transmits a detection signal to the early fire detection server when a fire or smoke is detected, and the at least one CCTV transmits the captured image to the early fire. A server communication unit for transmitting to a detection server, the early fire detection server receiving a detection signal from the at least one flame sensor and a smoke sensor, and receiving the captured image from the at least one CCTV, the at least one flame Whether the fire or smoke is detected by image processing the detection signal and the captured image received from the sensor and smoke sensor When determining additional fire determination portion for determining fire or not, and the fire is determined according to the portion determined result to the fire, characterized in that it comprises through the server communication manager device to a fire alarm that transmits a fire alarm call.

In order to achieve the above object, the flame, smoke and image-based early fire detection server according to an embodiment of the present invention receives a detection signal from at least one flame sensor and smoke sensor installed in each space of the building , A server communication unit that receives images from at least one CCTV installed in each space of the building, detects the signals received from the at least one flame sensor and smoke sensor, and processes the captured images to detect whether fire or smoke is detected It characterized in that it comprises a fire determination unit for determining whether or not the fire according to the result of the determination, and if the fire determination unit determines that a fire has occurred, to send a fire notification to the administrator terminal through the server communication unit .

In order to achieve the above object, the flame, smoke and image-based early fire detection method according to an embodiment of the present invention, the server communication unit detects signals from at least one flame sensor and smoke sensor installed in each space of the building Receiving, the server communication unit receiving the images captured from at least one CCTV installed in each space of the building, the at least one detection signal transmitted from the flame sensor and the smoke sensor, and the image processing of the captured image Determining whether a fire or smoke is detected according to a result of determining whether fire or smoke has been detected, when the fire determination unit determines that a fire has occurred, transmitting a fire notification to the administrator terminal through the server communication unit, and the fire Fire status confirmation information is received from the manager terminal receiving the notification, or If a reply is not received within a predetermined time from the manager terminal receiving the re-notification, the evacuation route guidance unit guides the evacuation route according to the location of the fire and the congestion rate analyzed from the video captured by the at least one CCTV. It is characterized by including.

Preferably, the early fire detection server may further include an evacuation route guidance unit for guiding an evacuation route according to a fire occurrence location and a congestion rate analyzed from the images captured by the at least one CCTV.

Also, preferably, the evacuation route guide unit guides the evacuation route when receiving fire situation confirmation information from the manager terminal that has received the fire alert, and the fire determination unit is the manager terminal that has received the fire alert When receiving fire detection information from the fire, it is determined that the fire determination by the fire determination unit is wrong, and information on the flame sensor, smoke sensor, and CCTV, which are the basis of the fire determination, may be transmitted to the manager terminal.

Also, preferably, the evacuation route guide unit may automatically guide the evacuation route when the fire situation confirmation information or the fire false detection information is not received from the manager terminal receiving the fire notification within a predetermined time. have.

The fire, smoke and video-based early fire detection system, server, and method according to the present invention as described above comprehensively analyze the detection signals and images provided from the flame sensor, smoke sensor, and CCTV to determine whether there is a fire, and thus malfunction. Minimizes and enables accurate early fire detection, and has the effect of promptly and accurately reporting fire and evacuation routes even in the absence of managers.

The flame, smoke and image-based early fire detection system, server and method according to the present invention have the effect of guiding the evacuation route in real time by reflecting the location of the fire and the congestion rate of the evacuation route in the event of a fire. .

1 is a view showing an early fire detection system based on flame, smoke and images according to an embodiment of the present invention.
2 is a view showing an early fire detection server based on flame, smoke, and images according to an embodiment of the present invention.
Figure 3 is a flow chart (Flowchart) showing an early fire detection method based on flame, smoke and images according to an embodiment of the present invention.
4A and 4B are views illustrating an operation method of an evacuation route guide unit according to an embodiment of the present invention.

Hereinafter, embodiments according to the present invention will be described with reference to the accompanying drawings. It should be noted that in adding reference numerals to the components of each drawing, the same components have the same reference numerals as possible even though they are displayed on different drawings. In addition, in describing the embodiments of the present invention, when it is determined that detailed descriptions of related well-known configurations or functions interfere with the understanding of the embodiments of the present invention, detailed descriptions thereof will be omitted. In addition, although the embodiments of the present invention will be described below, the technical spirit of the present invention is not limited or limited thereto, and may be variously implemented by a person skilled in the art.

Throughout the specification, when a part is "connected" to another part, this includes not only "directly connected" but also "indirectly connected" with another element in between. . Throughout the specification, when a part “includes” a certain component, it means that the component may further include other components, not to exclude other components, unless otherwise stated.

1 is a view showing an early fire detection system based on flame, smoke and images according to an embodiment of the present invention. Referring to FIG. 1, the flame, smoke and image-based early fire detection system 1000 according to an embodiment of the present invention includes at least one flame sensor 110_1 to 110_3 installed in each space of the building P, smoke It may include a sensor (130_1 to 130_3), CCTV (150_1 to 150_3) and an early fire detection server (300). Also, according to an embodiment, the flame, smoke, and image-based early fire detection system 1000 according to an embodiment of the present invention may further include an administrator terminal 700.

The at least one flame sensor 110_1 to 110_3 is a sensor that detects a flame generated within a measurement range, and detects flame by detecting ultraviolet rays or infrared rays generated from the flame. At least one flame sensor 110_1 to 110_3 may detect flame in various ways. When a flame is detected by at least one flame sensor 110_1 to 110_3, the detection signal may be converted into a digital signal and transmitted to the early fire detection server 300.

The at least one smoke sensor 130_1 to 130_3 may transmit a detection signal to the early fire detection server 300 when smoke is detected. At least one smoke sensor (130_1 to 130_3) is a light scattering type that detects using scattered light, a photosensitive type using a phenomenon in which the light emitted from a light source is reduced by the amount of light emitted by smoke, and the ion current by smoke. It can be implemented with various types of smoke sensors, such as ionization to detect changes.

At least one CCTV (150_1 to 150_3) may be installed in each space (P1, P2, P3) of the building (P), it may transmit the captured image to the early fire detection server (300). At least one CCTV (150_1 to 150_3) may communicate with the early fire detection server 300 through a network such as a wired or wireless communication network (500). As an example, the at least one CCTV (150_1 to 150_3) may transmit the captured image to the early fire detection server 300 in real time, and the early fire detection server 300 processes the CCTV image transmitted in real time to process the fire. Alternatively, it may be determined whether smoke is detected.

Depending on the embodiment, the at least one CCTV (150_1 to 150_3) may process the photographed image to determine whether fire or smoke is detected. Such a process may be performed through an image processing unit (not shown) provided in at least one CCTV 150_1 to 150_3. As an example, at least one CCTV (150_1 to 150_3) may analyze the captured image in real time by using OpenCV (Open Source Computer Vision), a library for real-time image processing.

When at least one CCTV (150_1 to 150_3) detects at least one of flame and smoke through real-time image processing from the captured image, the captured image is transmitted to the early fire detection server 300 using the wired / wireless communication network 500. Can transmit. As an example, when at least one CCTV 150_1 to 150_3 detects at least one of flame and smoke in the captured image, it may transmit a real-time image to the early fire detection server 300 every predetermined frame. The fact that at least one CCTV (150_1 to 150_3) has transmitted a real-time image to the early fire detection server 300 may mean that flame or smoke is first detected in the real-time image.

According to an embodiment, at least one CCTV (150_1 to 150_3) does not perform real-time image processing to detect flame or smoke from the captured image, and uses the early fire detection server 300 to record the image captured at regular frame intervals. Can transmit. That is, according to an embodiment, a function of detecting fire or smoke by processing a CCTV image may be performed by at least one CCTV 150_1 to 150_3 or an early fire monitoring server 300.

1 is a three-story building (P) for convenience and at least one flame sensor (110_1 to 110_3), smoke sensors (130_1 to 130_3) and CCTV (150_1 to 150_3) as a simple illustration of the at least one flame sensor (110_1 to 110_3), smoke sensors 130_1 to 130_3 and CCTVs 150_1 to 150_3 may be installed in various spaces inside the building P, and the number of installations may be variously changed. As an example, at least one flame sensor (110_1 to 110_3) or smoke sensors (130_1 to 130_3) may be installed in a place where at least one CCTV (150_1 to 150_3) is difficult to be installed inside the building (P). Therefore, they may be installed overlapping each other.

The early fire detection server 300 receives detection signals from at least one flame sensor 110_1 to 110_3 and smoke sensors 130_1 to 130_3, and transmits the captured image from at least one CCTV 150_1 to 150_3. Can receive

The early fire detection server 300 determines whether fire or smoke is detected by image processing the detection signal and the captured image received from the at least one flame sensor 110_1 to 110_3 and the smoke sensors 130_1 to 130_3. The fire can be judged according to the result.

If it is determined that a fire has occurred, the early fire detection server 300 may transmit a fire notification to the manager terminal 700. The early fire detection server 300 may guide the evacuation route when receiving fire situation confirmation information from the manager terminal 700 receiving the fire notification. Here, the fire situation confirmation information may be information transmitted by the administrator to the fire detection server 300 by confirming the fire occurrence is correct as a result of directly checking the fire after receiving the fire notification through the administrator terminal 700. The early fire detection server 300 may guide the evacuation route according to the fire occurrence location and the congestion rate analyzed from the images captured by the at least one CCTV 150_1 to 150_3.

When the fire detection server 300 receives fire detection information from the manager terminal 700 receiving the fire notification, the fire detection server 300 determines that the fire determination by the fire determination unit is wrong and is the basis of the fire determination. Information about the sensors 110_1 to 110_3, the smoke sensors 130_1 to 130_3, and the CCTVs 150_1 to 150_3 may be transmitted to the manager terminal 700. Here, the fire false detection information may be information transmitted by the administrator to the fire detection server 300 by checking the fire notification through the administrator terminal 700 and directly confirming it, and then confirming that it is not a fire.

The early fire detection server 300 may automatically guide the evacuation route when the fire situation confirmation information or the fire false detection information is not received within a predetermined time from the administrator terminal 700 receiving the fire notification. In other words, when an administrator is absent or a reason such as failure to check the fire notification occurs, the evacuation route guidance cannot be delayed, so the evacuation route can be guided by trusting the judgment result of the early fire detection server 300.

Although the early fire detection server 300 is shown in FIG. 1 as being located outside the building P, this is an example, and the early fire detection server 300 may be located inside the building P. The detailed configuration and operation method of the early fire detection server 300 will be further described with reference to FIGS. 2 to 4B, and detailed description thereof will be omitted.

Wired and wireless communication network 500, at least one flame sensor (110_1 to 110_3), at least one smoke sensor (130_1 to 130_3), at least one CCTV (150_1 to 150_3), early fire detection server 300 and the administrator terminal ( 700 is a communication network (communication network) capable of communicating with each other, and may be configured regardless of a communication mode, a short-range communication network (PAN), a local area network (LAN), a local area network (MAN); It can be composed of various communication networks such as Metropolitan Area Network (WAN) and Wide Area Network (WAN). In addition, the wired / wireless communication network 500 may be a known World Wide Web (WWW), and may use a wireless transmission technology used for short-range communication such as Infrared Data Association (IrDA) or Bluetooth (Bluetooth). It might be. Since the wired / wireless communication network 500 is widely known to a person skilled in the art, detailed descriptions thereof will be omitted.

The administrator terminal 700 is a terminal capable of receiving a fire notification from the early fire detection server 300, and various types of terminals or electronics capable of data communication by wire or wireless, such as a user computer 700_1 or a mobile terminal 700_2 It may be equipment, and may be variously changed within a range known to those skilled in the art. The manager terminal 700 may be a user computer 700_1 installed in a central situation room or the like, or may be a mobile terminal 700_2 owned by an administrator. The administrator may receive a fire notification through the administrator terminal 700, and when it is determined that the actual fire situation, the fire situation confirmation information may be transmitted to the early fire detection server 300. When the manager receives the fire notification through the manager terminal 700, but determines that it is not a fire, the administrator may transmit the fire false detection information to the early fire detection server 300.

2 is a view showing an early fire detection server based on flame, smoke, and images according to an embodiment of the present invention. Referring to Figure 2, the flame, smoke and video-based early fire detection server 300 according to an embodiment of the present invention, the server communication unit 310, the fire determination unit 330 and the fire notification unit 350 According to an embodiment, the evacuation route guide unit 370 and the database unit 390 may be further included.

The server communication unit 310 may receive detection signals from at least one flame sensor 110_1 to 110_3 and smoke sensors 130_1 to 130_3 installed in each space of the building P, and each space of the building P At least one CCTV (150_1 to 150_3) installed in the video can be received. In addition, the server communication unit 310 may transmit the fire notification received from the fire notification unit 350 to the manager terminal 700, and determines fire situation identification information and fire false detection information transmitted from the manager terminal 700 as fire. The unit 330 and the evacuation route guidance unit 370 may be transmitted. The server communication unit 310 includes at least one flame sensor 110_1 to 110_3, at least one smoke sensor 130_1 to 130_3, at least one CCTV (150_1 to 150_3), and an administrator terminal 700 through the wired / wireless communication network 500. It can be communicated with, and can be implemented as a communication module that supports various wired and wireless communication methods, and can be variously changed within a range known to those skilled in the art.

The fire determination unit 330 may determine whether there is a fire according to the detection signals transmitted from the at least one flame sensor 110_1 to 110_3 and the at least one smoke sensor 130_1 to 130_3. The fire determination unit 330 may determine whether there is a fire according to a result of determining whether fire or smoke is detected by processing an image captured by at least one CCTV 150_1 to 150_3. The fire determination unit 330 is a result of determining whether fire or smoke is detected by processing an image captured by at least one CCTV (150_1 to 150_3) and at least one flame sensor (110_1 to 110_3) and at least one smoke The detection signals received from the sensors 130_1 to 130_3 may be synthesized to determine whether a fire has occurred. Since it is difficult to install CCTVs (150_1 to 150_3) in all spaces inside the building (P), flame sensors (110_1 to 110_3) and smoke sensors (130_1 to 130_3) are installed in spaces where CCTVs (150_1 to 150_3) are not installed. It can be used together with CCTV (150_1 to 150_3).

According to an embodiment, the fire determination unit 330 processes the image captured by the CCTVs 150_1 to 150_3 to detect fire or smoke, or at least one flame sensor 110_1 to 110_3 and at least one smoke When a flame or smoke is detected by analyzing the detection signal transmitted from the sensors 130_1 to 130_3, the fire determination unit 330 may determine that a fire has occurred.

When the fire determination unit 330 determines that a fire has occurred, the fire notification unit 350 may transmit a fire notification to the administrator terminal 700 through the server communication unit 310. The fire notification may be transmitted to the manager terminal 700 in the form of a text message or a push message, and the location of the suspected fire zone, the video of the CCTV in which the fire is detected, etc. may also be transmitted to the manager terminal 700.

The manager terminal 700 may notify the manager of the fire notification reception through a notification sound or the like. When a manager receives a fire notification, the manager can directly check the fire situation once again to see if the fire situation is correct. If the fire situation is correct, the fire evacuation route guidance system is operated to safely evacuate the people in the building through the shortest route I can do it.

The evacuation route guide unit 370 may guide the evacuation route according to the fire occurrence location and the congestion rate analyzed from the images captured by the at least one CCTV 150_1 to 150_3. The congestion rate may be calculated according to how crowded people are by analyzing CCTV images.

The evacuation route guide unit 370 may guide the evacuation route when receiving fire situation confirmation information from the manager terminal 700 receiving the fire notification.

The evacuation route guide unit 700 may automatically guide the evacuation route when the fire situation confirmation information or the fire false detection information is not received from the manager terminal 700 receiving the fire notification within a predetermined time. That is, if the notification is not confirmed due to the absence of the administrator, the evacuation route guidance unit 370 may automatically guide the evacuation route after a specific time.

According to an embodiment, when there is no response from the manager terminal 700 receiving the fire notification, if the congestion degree of the suspected fire zone increases or the movement speed of people in the suspected fire zone is faster than the normal speed, the fire determination unit 330 ) May determine that a fire has occurred and may guide the evacuation route through the evacuation route guide 370. That is, the fire determination unit 330 analyzes the video shot in the CCTV of the suspected fire zone, and when there are more people in the zone, increasing the congestion or increasing the speed of movement of the people, a fire occurs and it becomes urgent. Judging by the situation, you can guide the evacuation route. That is, the fire determination unit 330 according to an embodiment of the present invention may guide the evacuation route by analyzing the congestion degree of the suspected fire zone and the movement speed of people analyzed through CCTV.

According to an embodiment, the fire determination unit 330 analyzes a detection signal transmitted from at least one flame sensor 110_1 to 110_3 by detecting a fire by processing an image captured by the CCTV 150_1 to 150_3. When a flame is detected, since the two flame detection results are identical, the evacuation route guide unit 370 may guide the evacuation route. That is, when the two detection results are consistent, it is determined that a fire is likely to occur, and the evacuation route guidance can be performed immediately without confirmation of the manager terminal 700. When the fire determination unit 330 processes the image captured by the CCTV (150_1 to 150_3), smoke is detected, and smoke is detected by analyzing the detection signal transmitted from at least one smoke sensor (130_1 to 130_3). Also, since the two smoke detection results are consistent, the evacuation route guide unit 370 may guide the evacuation route. After confirming the fire notification through the administrator terminal 700, if it is determined that it is not a fire, the administrator may stop the evacuation route guidance.

The fire determination unit 330 determines that the fire determination by the fire determination unit 330 is wrong when the fire detection information is received from the manager terminal 700 receiving the fire notification, and serves as a basis for the fire determination. Information on the flame sensors 110_1 to 110_3, the smoke sensors 130_1 to 130_3, and the CCTVs 150_1 to 150_3 may be transmitted to the manager terminal 700. Accordingly, the manager can easily identify a malfunctioning flame sensor, smoke sensor, and CCTV, and can take appropriate measures such as replacement or repair.

According to an embodiment, the fire determination unit 330 may receive a real-time image in which flame or smoke is first detected from at least one CCTV 150_1 to 150_3. That is, at least one CCTV 1501 to 150_3 may perform the primary judgment for detecting flame or smoke in the captured image.

The database unit 390 stores captured images received from at least one CCTV (150_1 to 150_3), at least one flame sensor (110_1 to 110_3), and detection signals received from at least one smoke sensor (130_1 to 130_3). In addition, information about a user terminal held by people in the building P may be stored to guide the evacuation route.

As described above, the flame, smoke and image-based early fire detection server 300 according to an embodiment of the present invention includes at least one flame sensor 110_1 to 110_3, at least one smoke sensor 130_1 to 130_3, and Accurate early fire detection is possible by comprehensively analyzing detection signals and images provided from at least one CCTV (150_1 to 150_3) to determine whether there is a fire, and prompt and accurate fire notification and evacuation route guidance even in the absence of an administrator It works.

Figure 3 is a flow chart (Flowchart) showing an early fire detection method based on flame, smoke and images according to an embodiment of the present invention. Flame, smoke and image-based early fire detection method 2000 according to an embodiment of the present invention shown in Figure 3 is a flame according to an embodiment of the present invention shown above with reference to Figures 1 to 2, It can be performed by the smoke and image-based early fire detection server 300.

Referring to FIG. 3, in the method for detecting fire, based on flame, smoke, and image according to an embodiment of the present invention 2000, at least one flame sensor in which the server communication unit 310 is installed in each space of the building P It may include the step (S21) of receiving the detection signal from the (110_1 to 110_3) and the smoke sensor (130_1 to 130_3). The fire determination unit 330 may analyze whether the flame is detected in the corresponding area by analyzing the detection signal transmitted from the at least one flame sensor 110_1 to 110_3, and from the at least one smoke sensor 130_1 to 130_3 By analyzing the transmitted detection signal, it is possible to determine whether smoke is detected in the corresponding area.

Next, an early fire detection method 2000 based on flame, smoke, and video according to an embodiment of the present invention includes at least one CCTV (150_1 to 150_3) in which the server communication unit 310 is installed in each space of the building P It may include the step of receiving the image taken from the (S22). Depending on the embodiment, the at least one CCTV (150_1 to 150_3) may determine the photographed image as the primary and transmit the photographed image to the early fire detection server 300 only when fire or smoke is detected. In this case, determining whether fire or smoke is detected by processing the photographed image may be omitted in step S23.

Next, an early fire detection method 2000 based on flame, smoke and images according to an embodiment of the present invention includes detection signals transmitted from at least one flame sensor 110_1 to 110_3 and smoke sensors 130_1 to 130_3. And it may include the step of determining whether the fire according to the result of determining whether the fire or smoke is detected by image processing the captured image (S23). Step S23 may be performed by the fire determination unit 330, and as described above, the fire determination unit 330 may detect fire or smoke in a CCTV image according to an OpenCV-based real-time image processing method.

As a result of the determination by the fire determination unit 330, if no fire or smoke is detected in at least one of the flame sensors 110_1 to 110_3, the smoke sensors 130_1 to 130_3, and the CCTVs 150_1 to 150_3 It is determined that it is not, and it is possible to return to step S21 again to receive a new detection signal from at least one flame sensor 110_1 to 110_3 and smoke sensors 130_1 to 130_3 and perform steps S21 and S22 again.

Next, in the flame, smoke, and image-based early fire detection method 2000 according to an embodiment of the present invention, if the fire determination unit 330 determines that a fire has occurred, the administrator through the server communication unit 310 It may include the step (S24) of transmitting a fire notification to the terminal 700. As described above, the fire determination unit 330 combines the results obtained from the at least one flame sensor 110_1 to 110_3, the smoke sensors 130_1 to 130_3, and the CCTVs 150_1 to 150_3 to determine whether various fires have occurred. can do.

Next, the method for detecting an early fire based on flame, smoke, and video according to an embodiment of the present invention 2000 receives fire situation confirmation information from the manager terminal 700 receiving the fire notification or transmits a fire notification If a reply is not received within a predetermined time from the received manager terminal 700, the evacuation route guidance unit 370 evacuates according to the fire occurrence location and the congestion rate analyzed from the images taken by at least one CCTV (150_1 to 150_3). It may include a step (S25) for guiding the route.

When the fire determination unit 330 receives fire detection information from the manager terminal 700 receiving the fire notification, the fire determination unit 330 determines that the fire determination by the fire determination unit 330 is wrong and the basis of the fire determination is The information on the flame sensor, smoke sensor, and CCTV may be transmitted to the manager terminal 700.

4A and 4B are views illustrating an operation method of an evacuation route guide unit according to an embodiment of the present invention. 4A and 4B are schematic views of the floor plan of the building, where R1 to R10 represent space such as an office and S1 to S4 represent stairs that can be evacuated in the event of a fire.

The evacuation route guide unit 370 may guide the evacuation route according to the fire occurrence location and the congestion rate analyzed from the images captured by the at least one CCTV 150_1 to 150_3. The evacuation route guide unit 370 may analyze the congestion rate by measuring the degree of population density in each evacuation route area using OpenCV. In addition, the evacuation route guide unit 370 calculates the congestion rate by comparing images captured by at least one CCTV (150_1 to 150_3) with images taken when no fire occurs and there is no movement of the population. It might be. For example, when a large number of people are gathered in the emergency exit of the corresponding area due to a fire, it is possible to estimate that the number of people is concentrated because the similarity with the previously stored video information is significantly reduced. On the other hand, when there are not many people in the emergency exit of the area, it is possible to estimate that the population is not crowded because the similarity with the previously stored video information does not differ significantly. Through this, it is possible to induce smooth evacuation to a place where the congestion rate is not high.

Referring to Figure 4a, in the event of a fire in front of the stairs S1, the evacuation route guidance unit 370 provides evacuation routes to the steps S2 and S3 located at the shortest distance to the personnel of R1, R2, R7, R8, R9, and R10. You can guide, and you can guide the evacuation route to the S3 stairs to the personnel of R3, R4, R5, R6.

Next, referring to FIG. 4B, when evacuation is performed and people are crowded on the steps S2 and S3, it may be determined that the congestion rate of the corresponding area is increased through the images taken by CCTV installed near the steps S2 and S3. . Accordingly, the evacuation route guidance unit 370 evacuates the personnel of R1, R2, R7, R8, R9, R10 to S4 stairs, not S2 stairs, considering that the congestion rate of the S2 stairs and S3 stairs is increased. I can guide you. This congestion rate may be calculated in real time for each zone where at least one CCTV (150_1 to 150_3) is installed in order to calculate an optimal evacuation route in case of fire.

The evacuation route guide unit 370 may guide the evacuation route based on the shortest route based on the fire occurrence location and the congestion rate analyzed from the images captured by the at least one CCTV 150_1 to 150_3. As an example, the shortest route-based evacuation route guidance method may use a Dijkstra algorithm or an A * algorithm. The weight of each algorithm may be the distance from the CCTV installed in each zone to the evacuation route.

According to an embodiment, the evacuation route guide unit 370 may calculate an evacuation route from an area where evacuation is difficult, such as a high floor or a distance to an emergency exit. The evacuation route guidance unit 370 sets the route from the current location to the nearest emergency exit as an evacuation route, but if a fire has occurred between the emergency exits at the current location, the emergency exit path is excluded, except for the emergency exit. If the congestion rate is high, the emergency exit can be excluded. The evacuation route guidance unit 370 may set an evacuation route guidance sequence in consideration of a distance from a fire occurrence location.

According to the embodiment, the evacuation route guide unit 370 may guide the evacuation route to the finally retrieved emergency exit, and increase the congestion rate for the emergency exits of other floors connected to the emergency exit guided by the evacuation route to increase the evacuation route. Congestion can be prevented.

According to an embodiment, the evacuation route guide unit 370 may guide the evacuation route through a broadcast speaker installed in the building P or an emergency exit guidance light. In addition, the evacuation route guide unit 370 may guide the evacuation route like a general emergency exit guide light using a circuit or the like that can guide an emergency exit through a fluorescent lamp. In addition, according to an embodiment, the evacuation route guide unit 370 may transmit a message or the like regarding the evacuation route to the user terminal of people in the building P.

The present invention has been described with reference to the embodiments shown in the drawings, but these are merely exemplary, and those skilled in the art will understand that various modifications and equivalent other embodiments are possible therefrom. Various embodiments can be combined as described above. The true technical protection scope of the present invention should be defined by the technical spirit of the appended claims.

110_1 ~ 110_3: Flame sensor 130_1 ~ 130_3: Smoke sensor
150_1 ~ 150_3: CCTV 300: Early fire detection server
310: server communication unit 330: fire determination unit
350: fire alarm 370: evacuation route information
390: database unit 500: wired and wireless communication network
700: administrator terminal

Claims (8)

In the early fire detection system including at least one flame sensor, smoke sensor and CCTV installed in each space of the building, including an early fire detection server,
The at least one flame sensor and smoke sensor transmits a detection signal to the early fire detection server when a fire or smoke is detected,
The at least one CCTV transmits the captured image to the early fire detection server,
The early fire detection server,
A server communication unit receiving a detection signal from the at least one flame sensor and a smoke sensor, and receiving the captured image from the at least one CCTV;
A fire determination unit configured to determine whether a fire is in accordance with a result of determining whether fire or smoke is detected by image processing the detection signal received from the at least one flame sensor and the smoke sensor and the captured image;
A fire notification unit that transmits a fire notification to an administrator terminal through the server communication unit when the fire determination unit determines that a fire has occurred; And
When receiving the fire status confirmation information from the manager terminal receiving the fire notification, and includes an evacuation route guidance unit for guiding the evacuation route,
The fire determination unit,
When receiving the fire false detection information from the manager terminal receiving the fire notification, it is determined that the fire determination by the fire determination unit is wrong, and information about the flame sensor, smoke sensor, and CCTV that is the basis of the fire determination is received. Early fire detection system based on flame, smoke and video, characterized in that it is transmitted to the manager terminal. According to claim 1, The evacuation route guidance unit,
An early fire detection system based on flame, smoke and images, characterized by guiding an evacuation route according to a fire occurrence location and a congestion rate analyzed from the images captured by the at least one CCTV. According to claim 2, The evacuation route guidance unit,
Flame, smoke and video-based early stage, characterized in that automatically guides the evacuation route when the fire status confirmation information or the fire false detection information is not received within a predetermined time from the administrator terminal receiving the fire notification. Fire detection system. A server communication unit receiving detection signals from at least one flame sensor and smoke sensor installed in each space of the building, and receiving images captured from at least one CCTV installed in each space of the building;
A fire determination unit configured to determine whether a fire is in accordance with a result of determining whether fire or smoke is detected by image processing the detection signal received from the at least one flame sensor and the smoke sensor and the captured image;
A fire notification unit that transmits a fire notification to an administrator terminal through the server communication unit when the fire determination unit determines that a fire has occurred; And
When receiving the fire status confirmation information from the manager terminal receiving the fire notification, and includes an evacuation route guidance unit for guiding the evacuation route,
The fire determination unit,
When receiving the fire false detection information from the manager terminal receiving the fire notification, it is determined that the fire determination by the fire determination unit is wrong, and information about the flame sensor, smoke sensor, and CCTV that is the basis of the fire determination is received. Early fire detection server based on flame, smoke and video, characterized in that it is transmitted to the manager terminal. According to claim 4, The evacuation route guidance unit,
An early fire detection server based on flame, smoke and images, characterized by guiding an evacuation route according to a fire occurrence location and a congestion rate analyzed from the images captured by the at least one CCTV. According to claim 5, The evacuation route guidance unit,
Flame, smoke and video-based early stage, characterized in that automatically guides the evacuation route when the fire status confirmation information or the fire false detection information is not received within a predetermined time from the administrator terminal receiving the fire notification. Fire detection server. The server communication unit receives a detection signal from at least one flame sensor and smoke sensor installed in each space of the building;
Receiving, by the server communication unit, images captured from at least one CCTV installed in each space of the building;
Determining whether there is a fire according to a result of determining whether fire or smoke is detected by processing a video of the detection signal and the captured image received from the at least one flame sensor and the smoke sensor;
If the fire determination unit determines that a fire has occurred, transmitting a fire notification to the administrator terminal through the server communication unit; And
When the evacuation route guidance unit receives the fire situation confirmation information from the manager terminal receiving the fire notification, comprising the step of guiding the evacuation route,
The fire determination unit,
When receiving the fire false detection information from the manager terminal receiving the fire notification, it is determined that the fire determination by the fire determination unit is wrong, and information about the flame sensor, smoke sensor, and CCTV that is the basis of the fire determination is received. Flame, smoke and image-based early fire detection method characterized in that it is transmitted to the manager terminal. According to claim 7, The evacuation route guidance unit,
A flame characterized by guiding the evacuation route according to the fire occurrence location and the congestion rate analyzed from the video captured by the at least one CCTV, if a reply is not received within a predetermined time from the manager terminal receiving the fire notification. , Smoke and image based early fire detection methods.

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