ELECTRIC FIRE PREDICTION MONITORING SYSTEM AND THE METHOD INCLUDING THE SAME

Abstract

The present disclosure relates to a system and method for predicting and detecting the outbreak of a fire. In particular, the present disclosure includes a management server configured to store and output data, a state detection unit disposed in a given space (hereinafter referred to as a “detection space”) becoming a target of detection and configured to transmit, to the management server, a detected value of a normal state or an abnormal state within the detection space, a detection space photographing unit configured to transmit, to the management server, a first screen obtained by photographing the detection space in the normal state in which a detected value detected by the state detection unit is less than a set value and a second screen obtained by photographing the detection space in the abnormal state in which a detected value detected by the state detection unit is the set value or more, an abnormal state determination unit configured to determine a dangerous situation when a detected value transmitted by the state detection unit is the set value or more and to transmit, to a management terminal, thermal image data measured through the second screen, and the manager terminal configured to communicate with the management server. Accordingly, the present disclosure provides an advantage in that a manager can predict and identify a fire outbreak danger point in advance.

Claims

1. A system for predicting and detecting an outbreak of a fire, comprising: a management server configured to store and output data; a state detection unit disposed in a given space (hereinafter referred to as a “detection space”) becoming a target of detection and configured to detect a normal state or an abnormal state within the detection space; a detection space photographing unit configured to transmit, to the management server, a first screen obtained by photographing the detection space in the normal state in which a detected value detected by the state detection unit is less than a set value and a second screen obtained by photographing the detection space in the abnormal state in which a detected value detected by the state detection unit is the set value or more; an abnormal state determination unit configured to determine a dangerous situation when a detected value transmitted by the state detection unit is the set value or more and to transmit thermal image data measured through the second screen; and a manager terminal configured to communicate with the management server.

2. The system of claim 1, wherein the detection space photographing unit has a function for calibrating and compressing the second screen through calibration so that the second screen coincides with a fire outbreak location measured in the thermal image data and transmitting the calibrated and compressed thermal image and location data to the management server.

3. The system of claim 1, wherein the thermal image data measured through the second screen is datafied in a contour line form by incorporating a temperature distribution at a fire outbreak danger point and transmitted to the management server.

4. The system of claim 3, wherein the datafication of the contour line is calculated using an equation generated by Relation 1 below. $\begin{array}{cc}T\left(x,y\right)=\mathrm{T\_max}-W*R\left(R=0.1\mathrm{to}\mathrm{R\_max}\right)& \left(1\right)\end{array}$ x,y: middle temperature coordinates (pixels) T_max: a middle temperature (° C.) W: a weight (gain) R: a radius pixel R_max: a maximum radius

5. The system of claim 3, wherein: the datafication of the contour line is calculated by the Relation 1, and when the temperature distribution is measured in an oval form, datafication of an oval contour line is measured using an equation generated by Equation 2 below. $\begin{array}{cc}\begin{array}{c}T\left(v,r\right)\text{:}\left(v.fwdarw.\right)=T\left(x,y\right)*r\\ \text{:}\left(v\leftarrow \right)=T\left(x,y\right)\end{array}& \left(2\right)\end{array}$ x,y: middle temperature coordinates (pixels) T_max: a middle temperature (° C.) W: a weight (gain) R: a radius pixel R_max: a maximum radius v: a diffusion vector direction (0 to 8) r: a minimum and maximum ratio (1:1 to 1:16)

6. The system of claim 5, wherein the datafication of the oval contour line comprises extracting the temperature distribution by integrating a value according to the Relation 2 and fast Fourier transform (FFT) analysis.

7. The system of claim 1, wherein at least one detection space photographing unit is provided and has a function capable of monitoring a given space which is the target to be detected in real time and measuring and transmitting a thermal image.

8. The system of claim 1, wherein the thermal image data comprises at least one of sensor information, a thermal image, and a location of a warning part.

9. The system of claim 1, wherein: the management server and the manager terminal mutually perform transmission and reception over a wireless network, and the wireless network is an IoT-based sensor network.

10. The system of claim 1, further comprising a gateway which mediates the transmission of the data from the abnormal state determination unit to the management server.

11. The system of claim 10, wherein communication between the abnormal state determination unit and the gateway comprises any one of wireless communication or wire communication capable of bidirectional communication.

12. The system of claim 1, wherein the abnormal state determination unit comprises: a fire detection unit disposed in the detection space and configured to detect configuration factor information directly related to a fire; and an environment detection unit disposed in the detection space and configured to detect environment factor information within the detection space as information other than configuration factor information related to the fire detection unit.

13. The system of claim 12, wherein the abnormal state determination unit classifies a risk state of the detection space based on a use aspect of the detection space and stores the risk state in the management server, and transmits, to a user, a risk state level of the detection space detected by the state detection unit and the environment factor information of the detection space when a detected value transmitted by the state detection unit is less than the set value.

14. The system of claim 1, wherein the first screen comprises a video or an image obtained by photographing any one of the detection space in which a user is not present, the detection space in which power is not used, and the detection space in which a user is not present in a time zone separately set by a user through the detection space photographing unit.

15. The system of claim 1, further comprising a controller configured to control a breaker at a corresponding fire outbreak location to be automatically blocked when fire outbreak location data is transmitted from the abnormal state determination unit to the management server or a fire outbreak location is identified by the detection space photographing unit.

16. A method of prediction and detecting outbreak of a fire, comprising: detecting an internal state of a panel board casing; determining whether the internal state of the panel board casing is abnormal or normal based on a preset value; determining the internal state of the panel board casing to be dangerous when the internal state reaches a preset primary critical value and transmitting a primary warning signal to a management server; and compressing thermal image data measured through a thermal image camera along with a secondary warning signal when the internal state of the panel board casing reaches a preset secondary critical value and transmitting the compressed thermal image data to the management server over an IoT-based communication network.

17. The method of claim 16, wherein the thermal image data measured through the thermal image camera is datafied in a contour line form indicative of a temperature distribution at a fire outbreak danger point and transmitted in an image form in a way to be visually identified by a manager.

18. The method of claim 16, wherein transmitting the thermal image data to the management server further comprises calibrating a location of the thermal image data measured through the thermal image camera at a fire outbreak danger point and a location of the thermal image camera.

Description

DESCRIPTION OF DRAWINGS

[0059] FIG. 1 is a diagram of a system for predicting and detecting the outbreak of a fire according to an embodiment of the present disclosure.

[0060] FIG. 2 is an exemplary diagram in which the outbreak location of a fire is identified by the system for predicting and detecting the outbreak of a fire according to an embodiment of the present disclosure.

[0061] FIG. 3 is a construction diagram of the system for predicting and detecting the outbreak of a fire according to an embodiment of the present disclosure.

[0062] FIGS. 4 and 5 are exemplary diagrams in which the system for predicting and detecting the outbreak of a fire according to an embodiment of the present disclosure measures the outbreak of a fire.

[0063] FIG. 6 is a flowchart illustrating a detecting method of the system for predicting and detecting the outbreak of a fire according to an embodiment of the present disclosure.

MODE FOR INVENTION

[0064] Hereinafter, an embodiment of a system and method for predicting and detecting the outbreak of a fire according to the present disclosure will be described in detail with reference to the accompanying drawings. In adding reference numerals to the elements of each drawing, it should be noted that the same elements have the same reference numerals as much as possible even if they are displayed in different drawings. Furthermore, in describing embodiments of the present disclosure, when it is determined that a detailed description of the related well-known configuration or function hinders understanding of an embodiment of the present disclosure, the detailed description thereof will be omitted.

[0065] Furthermore, in describing elements of an embodiment of the present disclosure, terms, such as a first, a second, A, B, (a), and (b), may be used. Such terms are used only to distinguish one component from the other component, and the essence, order, or sequence of a corresponding component is not limited by the terms. All terms used herein, including technical or scientific terms, have the same meanings as those commonly understood by a person having ordinary knowledge in the art to which an embodiment pertains, unless defined otherwise in the specification. Terms, such as those commonly used and defined in dictionaries, should be construed as having the same meanings as those in the context of a related technology, and are not construed as being ideal or excessively formal unless explicitly defined otherwise in the specification.

[0066] In the entire specification, when it is said that any part “comprises or includes” any element, it means that the part does not exclude any element, but may further include another element unless specially described to the contrary without excluding another element.

[0067] In general, a thermal image camera and a CCTV camera has a problem in that the transmission of data is impossible over an IoT-based sensor network due to a communication load.

[0068] Accordingly, the present disclosure may provide various effects, such as the simplification of communication means, convenient usability, and cost saving, by integrating and transmitting thermal image data and location data of a point of a danger of a fire outbreak or the outbreak of a fire photographed from the thermal image data in addition to sensor information included in an electrical facility including a panel board.

[0069] Furthermore, a social loss according to false reporting for the outbreak of a fire can be prevented by transmitting a warning or alarm through a dangerous signal of electrical safety caused by a leakage current attributable to carbonization in addition to a danger of an accident attributable to a fire in a common facility in addition to an electrical facility including a panel board.

[0070] FIG. 1 is an exemplary diagram of a system for predicting and detecting the outbreak of a fire according to an embodiment of the present disclosure. FIG. 2 is an exemplary diagram in which the outbreak location of a fire is identified by the system for predicting and detecting the outbreak of a fire according to an embodiment of the present disclosure. FIG. 3 is a construction diagram of the system for predicting and detecting the outbreak of a fire according to an embodiment of the present disclosure.

[0071] Referring to FIGS. 1 to 3, the system for predicting and detecting the outbreak of a fire according to an embodiment of the present disclosure may include a management server 30 storing and outputting data, a state detection unit 110 disposed in a panel board and transmitting, to the management server 30, a detected value of a normal state or an abnormal state within a panel board casing 50, a detection space photographing unit 120 transmitting, to the management server 30, a photographing screen of the panel board casing 50 having the normal state in which a detected value detected by the state detection unit 110 is less than a set value, an abnormal state determination unit 130 determining, as a dangerous situation, a detected value transmitted by the state detection unit 110 when the detected value is the set value or more and transmitting, to a manager terminal, thermal image data as a photographing screen measured through the detection space photographing unit 120, and the manager terminal 100 communicating with the management server 30.

[0072] The state detection unit 110 is provided within the panel board casing 50, and may detect the normal state or the abnormal state within an electrical facility 1 by detecting a state within the electrical facility 1 in real time. The state detection unit 110 may provide information for enabling the abnormal state determination unit 130 to be described later to determine whether the inside of the panel board casing 50 is abnormal. The state detection unit 110 includes various types of separate sensors (not illustrated). A detected value measured through the sensor may be transmitted to the abnormal state determination unit 30 through a gateway 12 in a wired or wireless form. Preferably, the state detection unit 110 may transmit a detected value to the management server 30 by using an IoT-based sensor network for wireless communication, such as Zigbee, LoRa, SigFox, or NB IoT. In some cases, the state detection unit 110 may transmit a detected value by using any one of wireless communication, including Wi-Fi, CDMA, LTE, or common RF communication, and wire communication, including wire communication including RS485, Modbus, Ethernet, or CAN communication.

[0073] The abnormal state determination unit 130 may determine whether the inside of the panel board casing 50 is abnormal, may differently set a set value depending on a use aspect of the panel board casing 50, and may transmit an abnormal signal to the management server 30 and the manager terminal 100 when a state within the panel board casing 50 is determined to be an abnormal state. In this case, the abnormal state determination unit 130 may transmit a location of the thermal image camera 10 to the management server 30 by calibrating and compressing the location of the thermal image camera 10 so that the location of the thermal image camera 10 coincides with a location of corresponding thermal image data whose “abnormal state” is identified based on data provided by the thermal image camera 10 and the thermal image data extracted from an image.

[0074] The detection space photographing unit 120 may photograph an internal state by substantially scanning each point within the panel board casing 50. For example, the detection space photographing unit 120 may include a case where “the normal state” is displayed and a case where “the abnormal state” is displayed. A screen photographed by the detection space photographing unit 120 may include a video or an image.

[0075] In this case, the detection space photographing unit 120 may include at least one thermal image camera 10, and may be electrically connected to a thermal image camera controller 11 transmitting the video or image photographed by the at least one thermal image camera 10. The thermal image camera controller 11 may transmit the video or image to the management server 30 through the wired and wireless gateway 12.

[0076] At least one thermal image camera 10 is installed at each selected place, and monitors each point within the panel board casing 50 so that a fire outbreak danger point is monitored in real time. Accordingly, a thermal image camera 10 at a fire outbreak danger point among the plurality of thermal image cameras 10 may detect heat occurring at the corresponding point. That is, the thermal image camera 10 may directly photograph a point at which the heat occurs, and may store “the abnormal state” in the form of video or image data. The aforementioned “abnormal state” may include a mechanical outbreak of a fire in the electrical facility 1, the panel board within the electrical facility 1, a breaker type, etc. or an electrical outbreak of a fire, such as a short circuit, an overcurrent, a leakage current, etc. occurring in an electric wire.

[0077] A detailed example in which a fire outbreak danger point through the thermal image camera 10 is scanned is more specifically described with reference to following drawings.

[0078] The management server 30 functions to bidirectionally transmit and receive and provide data in response to a request from the manager terminal 100. All of such data may be stored in a database (not illustrated). The management server 30 may be configured as a system including a single device or a plurality of devices.

[0079] The manager terminal 100 is equipment capable of communication over a wireless network. Various embodiments of a wireless terminal may include not only a cellular phone, a smartphone having a wireless communication function, a personal digital assistant (PDA) having a wireless communication function, a wireless modem, a portable computer having a wireless communication function, a photographing device such as a digital camera having a wireless communication function, music storage and playback home appliances having a wireless communication function, and Internet home appliances capable of wireless Internet access and browsing, but a handheld unit or terminal in which combinations of such functions are integrated, but the present disclosure is not limited thereto.

[0080] FIGS. 4 and 5 are exemplary diagrams in which the system for predicting and detecting the outbreak of a fire according to an embodiment of the present disclosure measures the outbreak of a fire. FIG. 6 is a flowchart illustrating a detecting method of the system for predicting and detecting the outbreak of a fire according to an embodiment of the present disclosure.

[0081] Referring to FIGS. 4 and 5, as described above, the system for predicting and detecting the outbreak of a fire according to the present disclosure may include the management server 30 storing and outputting data, the state detection unit 110 disposed in a panel board and transmitting, to the management server 30, a detected value of a normal state or an abnormal state within a panel board casing 50, the detection space photographing unit 120 transmitting, to the management server 30, a photographing screen of the panel board casing 50 having the normal state in which a detected value detected by the state detection unit 110 is less than a set value, the abnormal state determination unit 130 determining, as a dangerous situation, a detected value transmitted by the state detection unit 110 when the detected value is the set value or more and transmitting, to the manager terminal, thermal image data as a photographing screen measured through the detection space photographing unit 120, and the manager terminal 100 communicating with the management server 30.

[0082] In this case, thermal image data photographed by the thermal image camera 10, that is, the detection space photographing unit 120 according to the present disclosure, may be datafied in a contour line form by incorporating a fire danger point or a temperature distribution at a fire outbreak (danger) point P, and may be transmitted to the management server 30.

[0083] In general, when a fire occurs, a high temperature occurs. Such a temperature distribution has a characteristic in which the distribution is gradually spread from a center point. A temperature distribution for an area may be datafied and digitized in a contour line form based on such a physical characteristic.

[0084] Specifically, as illustrated in FIGS. 3 and 4, when a fire occurs in a given part within the panel board casing 50, the thermal image camera 10 located at a corresponding point may visually identify a general tendency of the fire, such as a temperature distribution and a location, by using a contour line extraction method based on the center point of the fire outbreak. In this case, according to the present disclosure, the contour line extraction method may be calculated by Relation 1 below.

[00003]$\begin{array}{cc}T\left(x,y\right)=\mathrm{T\_max}-W*R\left(R=0.1\mathrm{to}\mathrm{R\_max}\right)& \left(1\right)\end{array}$

[0085] x,y: middle temperature coordinates (pixels)

[0086] T_max: a middle temperature (° C.)

[0087] W: a weight (gain)

[0088] R: a radius pixel

[0089] R_max: a maximum radius

[0090] In this case, preferably, a thermal image may be calibrated and compressed through calibration so that the thermal image coincides with a location where the fire photographed by the thermal image camera 10 that photographs a fire outbreak (danger) point P occurs or a danger of the fire is present. Such calibrated and compressed thermal image data may be transmitted to the management server 30. Accordingly, a temperature distribution for a fire outbreak area may be datafied in a relatively small amount of data in a contour line form, and may be transmitted over an IoT-based sensor network having a small capacity.

[0091] In some cases, when the temperature distribution at the fire outbreak point identified through the thermal image camera 10 is checked in an oval contour line form, the temperature distribution may be calculated into Relation 2 below by using the factors checked through Relation 1. In this case, oval contour line extraction (fast Fourier transform (FFT)) analysis may be integrated and applied. That is, assuming that a highest temperature is a zero point, a transverse axis is a distance, and a longitudinal axis is a temperature, the temperature distribution at the fire outbreak (danger) point P may be accurately extracted by interpreting information received from the management server 30 in an oval contour line extraction (FFT) manner.

[00004]$\begin{array}{cc}T\left(v,r\right)\text{:}\left(v.fwdarw.\right)=T\left(x,y\right)*r& \left(2\right)\end{array}$

[0092] v: a diffusion vector direction (0 to 8)

[0093] r: a minimum and maximum ratio (1:1 to 1:16)

[0094] In this case, a diffusion vector direction (v.fwdarw.) may be represented using only 4 bits because the diffusion vector direction has nine numbers of 0 to 8. Since the minimum and maximum ratio (r) may be represented using only 4 bits up to 1:16, a value T(v,r) in Equation 2 may be represented using 1 byte. Accordingly, in order to represent one temperature contour line, 6 bytes may be required. Accordingly, a temperature distribution for a fire outbreak area can be datafied as a relatively small amount of data in a contour line form and transmitted over an IoT-based sensor network having a small capacity, etc.

[0095] The present disclosure may predict and detect the outbreak of a fire by using the system for predicting and detecting the outbreak of a fire.

[0096] As illustrated in FIG. 6, a method of predicting and detecting the outbreak of a fire may include a step S100 of detecting an internal state of the panel board casing 50, a step S200 of determining whether the internal state of the panel board casing 50 is abnormal or normal based on a preset value, a step S300-1 of determining that the internal state of the panel board casing 50 is dangerous when the internal state of the panel board casing 50 reaches a preset primary critical value and transmitting a primary warning signal to the management server 30, a step S500-1 of compressing thermal image data measured through the thermal image camera along with a secondary warning signal when the internal state of the panel board casing 50 reaches a preset secondary critical value and transmitting the compressed thermal image data to the management server over an IoT-based communication network, and a step S600 of continuously monitoring a risk state within the panel board casing 50. In this case, in some cases, the set value may be updated depending on whether a manager is present within the panel board casing 50.

[0097] For example, the state detection unit 110 may monitor the normal or abnormal state within the panel board casing 50 in real time. At this time, the state detection unit 110 can communicate with the thermal image camera 10. The internal state may be visually imaged and stored by the plurality of thermal image cameras 10 disposed in the panel board casing 50.

[0098] When a detected value measured by the state detection unit 110 reaches up to a set value of the preset primary critical value, the abnormal state determination unit 130 may transmit the primary warning signal to the management server 30. Accordingly, monitoring through the thermal image camera 10 disposed at a corresponding fire outbreak danger point can be enhanced by the management server 30.

[0099] Next, when a detected value measured by the state detection unit 110 at the corresponding fire outbreak danger point reaches a set value of the preset secondary critical value, the abnormal state determination unit 130 may transmit the secondary warning signal to the management server 30. At this time, thermal image data photographed by the thermal image camera 10 and extracted in a contour line form may be compressed in a form, such as an image which can be visually identified, and transmitted to the management server 30 in a way to be identified through the manager terminal 100 communicatively connected to the management server 30. Accordingly, a manager can finally determine a risk state, can identify the outbreak of a fire, and can take measures. In this case, the supply of power can be directly blocked through a panel board controller 150 disposed in the panel board 50.

[0100] Although not illustrated in the drawings presented by the present disclosure, the system for predicting and detecting the outbreak of a fire may also be applied to an electrical facility for charging including an electric vehicle charger, etc. in addition to the panel board. For example, an electric vehicle is charged while communicating with an AC/DC converter mounted on an electric vehicle charger. When an overheated portion having a preset critical value or more is detected in a specific portion based on an overcurrent, etc. by monitoring a balanced current state according to the amount of current, applied to an AC/DC converter included in such an electric vehicle charger, in real time, the electric vehicle may be configured to autonomously block an electric circuit. In this case, data may be extracted by applying the contour line datafication analysis method of the present disclosure to the overheated portion.

[0101] The embodiment of the system and method for predicting and detecting the outbreak of a fire according to the present disclosure has been described above with reference to the accompanying drawings. However, an embodiment of the present disclosure is not essentially limited to the aforementioned embodiment and may be modified in various ways and implemented within an equivalent range by a person having ordinary knowledge in the art to which the present disclosure pertains. Therefore, a true scope of rights of the present disclosure may be said to be determined by the attached claims.

DESCRIPTION OF REFERENCE NUMERALS

[0102] 1: electrical facility [0103] 10: thermal image camera [0104] 11: thermal image camera controller [0105] 12: wired and wireless gateway [0106] 30: management server [0107] 50: panel board casing [0108] 100: manager terminal [0109] 110: state detection unit [0110] 120: detection space photographing unit [0111] 130: abnormal state determination unit [0112] 150: panel board controller [0113] P: fire outbreak (danger) point