KR102191349B1 - Fire detection system providing a digital map for fire detection based on the image of the fire receiver - Google Patents

Abstract

The present invention relates to a fire detection system, in which an existing P-type/R-type fire receiving panel which does not provide fire detection information in the form of digital information is photographed by a camera and converted into digital information through image analysis, and mapped to a digital map to be displayed on a screen. The fire detection system includes: the camera for photographing the fire reception panel including one or more indicators which are turned on through an analog signal transmitted from one or more fire detection sensors for each area to be controlled; a control unit which analyzes an image obtained from the camera to extract the area where the indicator is turned on, finds the location information indicated by the indicator mapped to the extracted area from a database, and generates digitized fire detection information; and an output unit which visualizes and outputs digitized fire detection information transmitted from the control unit on a digital map.

Description

Fire detection system providing a digital map for fire detection based on the image of the fire receiver}

The present invention relates to a fire detection system. Specifically, the present invention is a fire detection system that photographs an existing P-type fire receiving panel that does not provide fire detection information in the form of digital information, converts it to digital information through image analysis, maps it to a digital map, and displays it on the screen. About.

With the advancement of technology, the city is becoming huge and reborn. Urban space is expanding from a flat living space on the surface to a three-dimensional living space with the advent of high-rise buildings. In particular, the number of skyscrapers with a height of more than 200m worldwide is increasing rapidly, and as of 2016, Korea became the world's fourth-largest country with skyscrapers after China, the United States, and the UAE.

However, a large city has a disadvantage that can be very vulnerable to disasters. High-rise buildings take more than one hour to evacuate due to the increase in vertical movement distance, and it is very difficult to quickly respond to buildings with more than 20 stories in response to a firefighting disaster.

In addition, in terms of firefighting, if a large number of personnel are concentrated in one building, more human damage occurs when a fire occurs. Technology and cities are gradually developing and becoming huge, but disasters are also becoming more complex and larger, and damage is also gradually increasing. According to the 2017 Disaster Yearbook, social disasters have continued to increase since 2015, and casualties and property damage also increased in 2017 compared to 2016.

Accordingly, in Korea, in the 「Act on Installation/Maintenance of Firefighting Facilities and Safety Management」, it is mandatory to install fire detection facilities such as fire receivers/sensors in buildings over a certain size.

In addition, for faster response, there is a trend to build a digital twin and CPS (Cyber Physical System) that realizes the real world as a virtual world and synchronizes in real time, and the recent fire detection facilities also provide digital fire detection information. Fire information can be displayed in the twin space.

However, the old fire detection facilities that have been built do not provide digital fire detection information. Existing fire detection facilities generally have a fire detector installed in the same space as a room, and in the event of a fire situation, the fire signal detected by the fire detector is transmitted to the fire reception panel of the fire detection control room, and the indicator of the fire reception group and a warning alarm Fire occurrence information is transmitted.

As such, it cannot be implemented as a digital twin space such as a digital map because it is difficult to automatically process fire signals unless digital fire detection information is provided. The interface to digitize the signal may be provided through cooperation with the developer of the established fire detection facility, but the cooperation may not be possible due to the circumstances of the fire receiver company, and the product produced by a standardized process may be provided to the consumer's preference. Correcting accordingly is costly. In particular, fire detection facilities are equipment built in accordance with the law, and arbitrarily changing equipment passed by the fire fighting law may cause problems.

Korean Patent Publication No. 10-1447689

An object of the present invention is to expand a fire detection system based on a digital map at a low cost in a building in which fire detection facilities such as a P-type fire reception panel are already built.

To this end, the present invention is to convert the light of the P-type fire reception panel into digital information that can manipulate the fire reception information through image processing by photographing the light of the P-type fire reception panel using a camera such as CCTV, without directly manipulating or changing the existing P-type fire reception panel. There is a tea purpose.

In addition, the present invention has a secondary purpose of not only converting data but also mapping it to a digital map and synchronizing it to a digital twin space in real time,

Furthermore, the present invention not only enables the security camera to be used for fire detection purposes, but also provides a digital map of the fire occurrence area, but also provides personal information staying in the fire occurrence area so that life-saving activities can be performed quickly. It has a third purpose to provide a supporting fire detection system.

A fire detection system according to an embodiment of the present invention includes a camera for photographing a fire reception panel including at least one indicator light that is lit through an analog electric signal transmitted from one or more fire detection sensors for each control target area, and is obtained from the camera. A control unit that analyzes the image to extract the area where the indicator lights are lit, finds the location information indicated by the indicators mapped to the extracted area from the database, and generates digitized fire detection information, and digitized fire detection information transmitted from the control unit It includes an output unit that visualizes and outputs on a digital map.

The fire detection system according to an embodiment of the present invention easily converts fire detection information into a digital form by using the built-in fire reception panel and interlocks it with the digital twin space even if the latest digital fire reception panel is not purchased.

In addition, the fire detection system according to an embodiment of the present invention has the advantage of obtaining digital information only by adding additional equipment without modifying the equipment passed through the fire fighting law.

In addition, the fire detection system according to an embodiment of the present invention builds a digital fire detection system at a lower cost than purchasing the latest digital fire receiving panel or acquiring digital fire information through cooperation with an existing fire receiving panel developer. There is an advantage to be able to do.

As a result, the fire detection system according to an embodiment of the present invention has the advantage of being able to expand to a digital twin-based fire detection system at low cost in a building in which an existing fire detection system is constructed.

1 is a schematic view of the exterior of a generally used fire reception panel.
2 is an exemplary block diagram of a fire detection system according to an embodiment of the present invention.
3 is an exemplary view of an image shooting screen of a fire reception panel according to an embodiment of the present invention.
4 is a flow chart showing the operation of the fire detection system according to an embodiment of the present invention.
5 is an exemplary view of visualizing fire detection information as a digital map.

Since the embodiments according to the present invention can be modified in various ways and have various forms, the embodiments will be illustrated in the drawings and described in detail in the present specification. However, this is not intended to limit the embodiments according to the present invention to specific disclosed forms, and includes all changes, equivalents, or substitutes included in the spirit and scope of the present invention.

When a component is referred to as being "connected" or "connected" to another component, it is understood that it is directly connected to or may be connected to the other component, but other components may exist in the middle. Should be. On the other hand, when a component is referred to as being "directly connected" or "directly connected" to another component, it should be understood that there is no other component in the middle. Other expressions describing the relationship between components, such as "between" and "directly between" or "adjacent to" and "directly adjacent to" should be interpreted as well.

The terms used in this specification are used only to describe specific embodiments, and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this specification, terms such as "comprises" or "have" are intended to designate the presence of features, numbers, steps, actions, components, parts, or combinations thereof described herein, but one or more other features. It is to be understood that the possibility of addition or presence of elements or numbers, steps, actions, components, parts, or combinations thereof is not preliminarily excluded.

Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs. Terms as defined in a commonly used dictionary should be interpreted as having a meaning consistent with the meaning in the context of the related technology, and should not be interpreted as an ideal or excessively formal meaning unless explicitly defined in this specification. Does not. "And/or" includes each and every combination of one or more of the recited items.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is an example of a generally used fire reception panel.

The fire reception panel is a device that receives whether or not a fire has occurred through a fire detector installed in each area such as a building. The fire reception team is a safety device to safely evacuate people from the fire by detecting a fire in each area, illuminating an indicator, and automatically sounding an alarm.

However, there is a limit to digitizing and visualizing fire detection information with the existing fire reception panel. Specifically, digitalization of data is essential in order to utilize the fire detection information for each area detected by the fire reception panel in the IT environment. Existing fire reception panels only receive electrical signals (analog signals) transmitted from the fire detection sensor. In other words, the existing fire reception panel only receives on and off electrical signals, and thus it is difficult to process or reprocess the signal to be used in a digitized system.

On the other hand, there is inevitably a cost difficulty when replacing all existing fire reception panels with digitalized devices. In addition, in the case of a fire detection device, unlike other devices, it is difficult to pass the tests of the relevant authorities and meet the prescribed standards.

As a result, since it is difficult both in terms of cost and time to completely replace the existing fire reception panel with digitized equipment, in the present invention, fire detection that can digitize and utilize fire detection information while using the existing analog fire reception panel. I want to explain the system.

2 is a block diagram showing a fire detection system according to an embodiment of the present invention.

The fire detection system 100 according to an embodiment of the present invention captures the fire reception panel 200, extracts a fire area based on the captured image, and converts the extracted fire area into digital information to visualize it to the user. I can.

As shown in Fig. 2, the fire detection system 100 according to an embodiment of the present invention includes a camera 110 usable for crime prevention, a lamp 120 including an illuminance sensor, a control unit 130, and an output unit. It may include 140 and a database unit 150.

The camera 110 processes image frames such as still images or moving images obtained by an image sensor. The processed image frame may be displayed on the output unit 140.

In the present invention, the camera 110 photographs the fire reception panel 200 and acquires an image. Specifically, the camera 110 intensively acquires an image of a fire detection indicator for each area from the fire reception panel 200. The camera 110 may periodically acquire an image of the fire reception panel 200.

As another embodiment of the present invention, the camera 110 may be implemented as a security camera capable of pan, tilt, and zoom control by the controller 130 to be described later. That is, the fire reception panel 200 is photographed by moving to a predetermined position (fire reception panel shooting position, having a predetermined zoom level) at a predetermined period, and at other times, the situation room where the fire reception panel 200 is located is used for crime prevention. You can also use a camera to shoot with.

The lamp 120 maintains the brightness of the image of the fire receiving panel 200 acquired by the camera 110 at a constant level. Specifically, the brightness of the image of the fire reception panel 200 acquired by the camera 110 may be changed by day or night or by a change in weather. At this time, when the brightness of the image of the fire reception panel 200 continuously changes, an error in extracting the fire area through the image may occur. Therefore, the lamp 120 including the illuminance sensor can maintain a constant image brightness of the fire reception panel 200 obtained by the camera 110 by adjusting the amount of light irradiated based on the brightness acquired through the illuminance sensor. .

The controller 130 typically controls the overall operation of the fire detection system 100.

Various embodiments described herein may be implemented in a recording medium that can be read by a computer or a similar device using, for example, software, hardware, or a combination thereof.

According to hardware implementation, the embodiments described herein include application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), It may be implemented using at least one of processors, controllers, micro-controllers, microprocessors, and electrical units for performing other functions, in some cases such an embodiment. They may be implemented by the control unit 130.

In a specific embodiment, the control unit 130 analyzes the image acquired by the camera 110 and converts the analog fire detection signal transmitted to the fire reception panel 200 to digital data by comparing it with the data stored in the database unit 150 do.

The operation of the control unit 130 will be described in more detail with reference to FIG. 3.

As shown in FIG. 3, there may be an image capturing screen regarding the indicator light of the fire reception panel 200 acquired by the camera 110. In addition, the database unit 150 may store information in which a space ID and location information (latitude, longitude, altitude) of each indicator are mapped to each indicator ID as shown in Table 1.

Indicator ID Space ID Light Location_Latitude Light position_Longitude Altitude F01 S01 36.7240 126.8082 10 F02 S01 36.7239 126.8081 10 F03 S02 36.7241 126.8083 10 F04 S03 36.7243 126.8085 10 .... .... .... ....

The controller 130 analyzes the image capture screen of the indicator of the fire reception panel 200 to analyze which indicator is turned on (through the screen change area), and which area of the lighted indicator is the fire detector. Here, the method for the controller 130 to analyze the screen is based on a generally known image analysis technique.

For example, when an arbitrary indicator light is turned on by receiving a fire detection signal, the control unit 130 extracts the location information of the lighted indicator light from the photographed image, and the lighted indicator based on Table 1 above is a fire detector in a certain area. It is possible to determine whether or not, and the control unit 130 may also obtain a space ID value mapped to the indicator ID. Here, the space ID is used to identify the actual space as illustrated in Table 2 below.

Space ID layer Space name Space area S01 First floor No. 101 POLYGON((....) S02 First floor Number 102 .... S03 First floor 1st floor men's toilet .... S04 First floor 1st floor women's toilet .... .... .... .... ....

For example, if the indicator ID of the extracted area is F01, the space ID is S01. And SO1 may mean 101. As a result, the control unit 130 may recognize that a fire has occurred in No. 101, and may generate a fire event indicating that a fire has occurred in No. 101.

It comes back to FIG. 2 again.

The output unit 140 of the fire detection system 100 according to an embodiment of the present invention includes a display device. Here, the display device is a liquid crystal display (LCD), a thin film transistor-liquid crystal display (TFT LCD), an organic light-emitting diode (OLED), and a flexible display. ) And at least one of a 3D display.

Some of these displays may be configured as a transparent type or a light-transmitting type so that the outside can be seen through them. This may be referred to as a transparent display, and a representative example of the transparent display is TOLED (Transparent OLED). The rear structure of the display device may also be configured as a light transmission type structure.

The output unit 140 may display a UI for controlling a fire situation, and may also display fire detection information digitized by the control unit 130. In a specific embodiment, a graphic interface indicating the overall situation of the building or a specific floor within the building may be displayed, and the output unit 140 displays the digitized fire detection information (fire area) transmitted from the control unit 130 as the graphic. Can be displayed together on the interface.

The database unit 150 stores Tables 1 and 2 for converting the analog signal of the fire reception panel 200 into digital data. In addition, the database unit 150 may store map data for each floor and the entire building, which is a target of fire situation control. For example, the database unit 150 may be a memory or a cloud system.

4 is a flow chart showing the operation of the fire detection system according to an embodiment of the present invention.

The fire detection system captures an image through a camera (S101). The image photographed here may be an image photographing the indicator light of the fire signal panel 200 as described above.

The control unit 130 of the fire detection system derives a screen change area (specifically, a color change area) from the captured image (S103). Specifically, the controller 130 may derive a region in which the screen (more specifically, color) is changed due to the lighting of the indicator from the image in which the indicator is photographed. For reference, the control unit 130 of the fire detection system can continuously acquire an image of an indicator light at a predetermined time interval, and when an arbitrary indicator is lit, the area in which the screen (color) has changed through a comparison between a series of images Can be derived.

Here, the method of deriving the area in which the screen has been changed may be performed by a generally known image object processing tool or algorithm.

The controller 130 generates digitized fire detection information by comparing the derived screen change area with a value pre-allocated for each screen area (S105). Specifically, the control unit 130 of the fire detection system may extract location information of an indicator light from the derived screen change area and generate digitized fire detection information from a space ID value mapped to the location information of the extracted indicator light.

Therefore, in the fire detection system according to an embodiment of the present invention, an analog electric signal is transmitted to the fire signal panel 200 and converts a fire detection signal that does not have a digitized value into a digitized fire detection information value indicating a specific area. can do. This digitized fire detection information is more freely processed and utilized than analog signals and is also easy to store. And there is also the economics of not having to replace the existing analog fire signal panel.

The control unit 130 of the fire detection system visualizes the digitalized fire detection information on a digital map (S107).

The visualization process of digitized fire detection information will be described with reference to FIG. 5.

5 shows an example of visualizing fire detection information on a digital map.

As shown in FIG. 5, an overall map of a building subject to fire control is displayed. Then, a fire detection information icon (A) is displayed at a position indicated by the digitized fire detection information. Specifically, the control unit 130 obtains a space ID where a fire has occurred through the video screen for the fire reception panel 200 and displays a fire detection information icon A at a location corresponding to the space ID. As a result, the fire detection system according to an embodiment of the present invention has the effect of being able to visualize the fire detection result as a digital map while maintaining the existing analog fire reception panel and fire detection system.

On the other hand, in the case of shooting the fire reception panel 200 using the camera 110, a foreign object or insects are attached to the lens system by a malicious obstructor, so that all the indicators of the fire reception panel 200 cannot be taken normally, or There may be a case where the security screen cannot be acquired normally.

In order to solve this problem, it is also possible to output a warning sound to the administrator by determining whether or not there is an obstacle to photographing through an image photographing screen analysis of the input fire receiving panel 200. The presence or absence of an obstruction may be determined as a case in which a different image screen is input compared with an image of the fire reception panel stored in the database.

In the above, the embodiment of the present invention has been described assuming the camera 110 photographing the fire reception panel 200 in a fixed position, but the object of the present invention is using a security camera that can adjust pan, tilt, and zoom by a camera driver. Can be achieved.

For example, by moving a security camera that can adjust pan, tilt, and zoom to the shooting position of the fire reception panel 200 at regular intervals, the fire reception panel 200 is photographed, and the fire occurrence area is extracted from the shooting screen by the method described above. The object of the present invention can be achieved by visualizing the digitalized fire detection information on a digital map. These security cameras are used for security purposes in locations other than the location of the fire reception panel. That is, a screen shot at a location other than the location of the fire reception panel may be stored for security purposes.

Even when using a security camera that can adjust pan, tilt, and zoom, a warning sound is output to the administrator by comparing and analyzing the image of the fire reception panel stored in the database as described above at the location of the fire reception panel. I can.

As another embodiment of the present invention, the control unit 130 may visualize only the digitized fire detection information on a digital map, as well as detect a person located around the fire occurrence area and visualize it on the digital map.

More specifically, the control unit 130 monitors signals output from moving object detection means (camera, object detection sensor, etc.) located around the fire occurrence area indicated by the digitized fire detection information, and detects the moving object. By considering it as information and visualizing it together on a digital map, it is possible to make quick human rescue activities to the area where the fire occurred.

In the above embodiment, the case where digitized fire detection information or human information together with it is visualized and outputted on a digital map has been described. In this case, since the manager or the like needs to verbally deliver more specific information to the emergency rescue system or rescuers who are conducting rescue activities, the information delivery is inevitably delayed, and it is difficult to ensure accuracy of information delivery.

In order to solve this problem, the fire detection system according to an embodiment of the present invention uses digital map information that visualizes digitized fire detection information, or digital information that visualizes digitized fire detection information and human information together, as an emergency rescue system or rescuer. It may further include a communication unit for transmission to the terminal. This communication unit may be a communication module using a mobile communication network, a communication module using a local area network, or a communication unit including all of them.

As described above, the fire detection system according to another embodiment of the present invention has the advantage of being able to expand to a digital twin-based fire detection system at low cost in a building in which an existing fire detection system is built. The effect of supporting rapid rescue activities and fire extinguishing in the fire site struggling with the fire by providing a visualized digital map of the fire area and personal information staying in the vicinity or by quickly disseminating it to an emergency rescue system (or rescuer terminal). You can also provide

The present invention described above can be implemented as a computer-readable code in a medium on which a program is recorded. The computer-readable medium includes all types of recording devices storing data that can be read by a computer system. Examples of computer-readable media include HDD (Hard Disk Drive), SSD (Solid State Disk), SDD (Silicon Disk Drive), ROM, RAM, CD-ROM, magnetic tape, floppy disk, optical data storage device, etc. There is also a carrier wave (eg, transmission over the Internet).

The present invention has been described with reference to the embodiments shown in the drawings, but these are only exemplary, and those of ordinary skill in the art will appreciate that various modifications and other equivalent embodiments are possible therefrom. Therefore, the true technical protection scope of the present invention should be determined by the technical spirit of the appended claims.

Claims (7)

In the fire detection system for fire situation control,
A camera for photographing a P-type fire reception panel without being connected to a P-type fire reception panel including indicator lights that are lit by an analog signal transmitted from a fire detection sensor for each control target area;
A lamp including an illuminance sensor and for maintaining a constant brightness of an image of the P-type fire receiving panel obtained from the camera;
A database in which location information including a space ID and a latitude, longitude, and altitude of each indicator are mapped to indicator IDs corresponding to each of the indicators, and floor information and a space name are mapped to each of the spatial IDs;
A control unit that analyzes the image obtained from the camera to extract an area where the indicator lights are lit, finds location information indicated by the indicator lamp mapped to the extracted area from the database, and generates digitized fire detection information;
An output unit for visualizing and outputting digitized fire detection information transmitted from the control unit on a digital map;
A communication unit for transmitting the digital map information visualizing the digitized fire detection information to an emergency rescue system or a rescuer terminal; including, but the control unit,
A warning sound is output by determining whether there is an obstacle to be photographed through the analysis of the video recording screen input from the shooting position of the P-type fire reception panel, and from moving object detection means located around the fire occurrence area indicated by the digitized fire detection information. A fire detection system, characterized in that by monitoring an output signal and visualizing and outputting human information located around the fire area on the digital map. delete delete Fan for photographing the P-type fire reception panel by moving to the location of the P-type fire reception panel at regular intervals without connection with the P-type fire reception panel including indicators that are lit by an analog signal transmitted from the fire detection sensor for each area to be controlled; A security camera capable of adjusting tilt and zoom;
A lamp including an illuminance sensor and for maintaining a constant brightness of an image of the P-type fire receiving panel obtained from the security camera;
A database in which location information including a space ID and a latitude, longitude, and altitude of each indicator are mapped to indicator IDs corresponding to each of the indicators, and floor information and a space name are mapped to each of the spatial IDs;
A control unit that analyzes the image obtained from the security camera to extract an area where the indicator light is lit, finds location information indicated by the indicator lamp mapped to the extracted area from the database, and generates digitized fire detection information;
An output unit for visualizing and outputting digitized fire detection information transmitted from the control unit on a digital map;
A communication unit for transmitting the digital map information visualizing the digitized fire detection information to an emergency rescue system or a rescuer terminal; including, but the control unit,
A warning sound is output by determining whether there is an obstacle to be photographed through the analysis of the video recording screen input from the shooting position of the P-type fire reception panel, and from moving object detection means located around the fire occurrence area indicated by the digitized fire detection information. A fire detection system, characterized in that by monitoring an output signal and visualizing and outputting human information located around the fire area on the digital map. delete delete delete

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