KR102294169B1 - Apparatus for sensing fire - Google Patents

Abstract

The present invention relates to a fire detector capable of expanding a fire detection range and increasing the accuracy of fire detection. The fire detector includes: a sensing part sensing an optical wavelength of 4.3um by the occurrence of a fire and an optical wavelength of 3.9um by sunlight; and a determination part determining whether a fire occurs based on the sensed optical wavelengths of 4.3um and 3.9um. The sensing part includes: a base plate including a first mounting member having a flat shape and s second mounting member having both sides inclined at the same angle; a first optical sensor placed on one of both sides of the second mounting member to sense the optical wavelength of 4.3um by the occurrence of a fire; a second optical sensor placed on the other one of both sides of the second mounting member to sense the optical wavelength of 4.3um by the occurrence of a fire; and a third optical sensor placed on the first mounting member to sense the optical wavelength of 3.9um by sunlight. When only the optical wavelength of 4.3um is detected from a sensing signal of the sensing part but the optical wavelength of 3.9um is not detected, the determination part determinate the situation as the occurrence of a fire.

Description

Fire detection device {APPARATUS FOR SENSING FIRE}

The present invention relates to a fire detection device, and more particularly, to a fire detection device capable of extending a fire detection range and increasing the accuracy of fire detection.

In general, a fire detection device that monitors a fire in a facility, indoors, etc. and provides a notification, such as monitoring the possibility of a fire in a specific facility or monitoring a fire in a building, has been disclosed in various ways and is applied and used in real life. .

However, in the case of outdoor, road, mountainous areas, etc., conventional fire detection devices misrecognize or mistake reflected light or heating elements due to terrain features, water surface, moving objects, wild animals, etc. as fire or fire factors, and various errors occur. In addition to the problem that the reliability of fire detection is lowered due to the narrow fire detection range, the infrared sensor outdoors has many false positives due to sunlight that has all the light spectrum, so it is applied to fire detection. The problem is that it is difficult to do.

In addition, in the case of mountainous areas, existing fire detection devices do not communicate smoothly due to geographical characteristics, so even if a fire is discovered, it is not reported immediately, and images captured due to poor communication cannot be transmitted to the server. there was.

Therefore, in the future, it is required to develop a fire detection device that expands the fire detection range, increases the accuracy of fire detection, and enables smooth communication even in mountainous areas.

Republic of Korea Patent Publication No. 10-2017-0058044 (2018.09.11)

One object of the present invention for solving the above-described problems, two optical sensors for sensing a 4.3um light wavelength caused by fire, both sides of which are disposed on the second mounting member inclined at the same angle, and a flat shape The branch is disposed on the first mounting member and detects the occurrence of a fire based on a sensing signal received from a single optical sensor that senses a light wavelength of 3.9um by sunlight, thereby extending the fire detection range and increasing the accuracy of fire detection. To provide a sensing device.

Another object of the present invention is to provide a fire detection device that enables smooth communication even in mountainous areas by processing an image acquired from the camera unit to be transmitted at high speed or at low speed according to the state of the communication network.

The problems to be solved by the present invention are not limited to the problems mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the following description.

A fire detection device according to an embodiment of the present invention for solving the above-described problems, a sensing unit for sensing a 4.3um optical wavelength by the fire and 3.9um optical wavelength by sunlight; And, a determination unit for determining whether or not a fire is based on the sensed 4.3um light wavelength and 3.9um light wavelength, wherein the sensing unit includes a first mounting member having a flat shape and a second mounting member having both sides inclined at the same angle A base plate comprising; a first optical sensor disposed on one of both sides of the second mounting member to sense a 4.3um light wavelength caused by the fire; a second optical sensor disposed on the other side of both side surfaces of the second mounting member to sense a 4.3um light wavelength caused by the fire; and a third optical sensor disposed on the first mounting member to sense a 3.9um optical wavelength by sunlight, wherein both side surfaces of the second mounting member are based on the center of both side surfaces of the second mounting member The first optical sensor and the second optical sensor are inclined to form a disposition angle of 60 degrees, and the sensing unit is 4.3um through the first optical sensor and the second optical sensor disposed on both sides of the second mounting member. It has a sensing angle range of 120 degrees and a sensing distance range of 50 m with respect to the optical wavelength, the first optical sensor and the second optical sensor are disposed on the same line with each other, and the third optical sensor is disposed with respect to the first and second optical sensors Doedoe disposed on another line, disposed between the first optical sensor and the second optical sensor, the base plate is formed to protrude so that the second mounting member is stepped with respect to the first mounting member, the determination unit, When only the 4.3um optical wavelength is detected from the sensing signal of the sensing unit and the 3.9um optical wavelength is not detected, it can be determined that the fire has occurred.

In this case, the determination unit may check the sensing signal of the sensing unit a plurality of times for each predetermined time, and if the pattern of the light wavelength to be recognized as a fire is repeatedly recognized, it may be determined that the fire has occurred.

In addition, the determination unit, when checking the sensing signal of the sensing unit a plurality of times for each predetermined time, counts the intensity of the sensing signal exceeding the reference range a plurality of times for each predetermined time, and the size of the fire based on the counted number of times can be judged At this time, the determination unit, when checking the sensing signal of the sensing unit a plurality of times for each predetermined time, checks whether the current time is a preset sunrise or sunset time, and stops the fire occurrence determination if the current time is a preset sunrise or sunset time Alternatively, the fire occurrence determination may be performed by adjusting the numerical range corresponding to the sunrise or sunset time.

In addition, the fire detection device according to the present invention includes a camera unit for photographing the surroundings to detect the fire; a communication unit for transmitting the image obtained from the camera unit; And, it further includes a power supply unit for supplying power to the sensing unit, the determination unit, the camera unit, and the communication unit, the power supply unit may supply power at all times or power generated by solar power generation.

In this case, the communication unit may wirelessly transmit the image acquired from the camera unit in a 920 MHz frequency band.

In addition, the fire detection device according to the present invention further comprises a control unit for controlling the communication unit and the camera unit, the control unit, to check the communication network state, and if the communication network state is normal, the image obtained from the camera unit Controls the communication unit for high-speed transmission in real time, and if the communication network condition is abnormal, processes the image obtained from the camera unit and controls the communication unit to transmit at low speed, and when communication is connected with at least one relay device, from the camera unit The communication unit may be controlled to transmit the acquired image to the communication-connected relay device, and the relay device may copy the image acquired from the camera unit and retransmit it to another relay device or an external server after a predetermined time.

At this time, the control unit controls the communication unit to transmit the image obtained from the camera unit at high speed when transmitting the image obtained from the camera unit at high speed using a WiFi HaLow communication method, and when transmitting the image obtained from the camera unit at low speed, The communication unit may be controlled to transmit an image at a low speed using a LoRa communication method.

In addition, the control unit controls the camera unit to shoot a moving picture, transmits the moving image acquired from the camera unit in real time, and controls the camera unit to take a still-cut photo of a high resolution higher than a preset level when a firebird occurs, , it is possible to transmit the still-cut picture obtained from the camera unit.

In this case, the control unit controls the camera unit to take a video when the communication network state is normal, and controls the communication unit to transmit the video acquired from the camera unit at high speed in real time, and if the communication network state is abnormal, the The camera unit may be controlled to take a still-cut picture, and the communication unit may be controlled to transmit the still-cut picture obtained from the camera unit at a low speed in a time-lapse method.

In addition to this, another method for implementing the present invention, another system, and a computer-readable recording medium for recording a computer program for executing the method may be further provided.

According to the present invention as described above, the two optical sensors are disposed on the second mounting member with both sides inclined at the same angle to sense the 4.3um light wavelength caused by the fire, and are disposed on the first mounting member having a flat shape. By detecting the occurrence of a fire based on a sensing signal received from a single optical sensor that senses a light wavelength of 3.9um by sunlight, it is possible to extend the fire detection range and increase the accuracy of fire detection.

In addition, according to the present invention, by processing the image obtained from the camera unit to be transmitted at a high speed or at a low speed according to the communication network state, it is possible to have a smooth communication effect even in a mountainous area.

Effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the following description.

1 is a block diagram illustrating a fire detection device according to an embodiment of the present invention.
FIG. 2 is a view for explaining the sensing unit of FIG. 1 .
3 is a view for explaining a base plate of a sensing unit.
4 is a view for explaining an image transmission process of a fire generating device.

Advantages and features of the present invention and methods of achieving them will become apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various different forms, and only these embodiments allow the disclosure of the present invention to be complete, and those of ordinary skill in the art to which the present invention pertains. It is provided to fully understand the scope of the present invention to those skilled in the art, and the present invention is only defined by the scope of the claims.

The terminology used herein is for the purpose of describing the embodiments and is not intended to limit the present invention. As used herein, the singular also includes the plural unless specifically stated otherwise in the phrase. As used herein, “comprises” and/or “comprising” does not exclude the presence or addition of one or more other components in addition to the stated components. Like reference numerals refer to like elements throughout, and "and/or" includes each and every combination of one or more of the recited elements. Although "first", "second", etc. are used to describe various elements, these elements are not limited by these terms, of course. These terms are only used to distinguish one component from another. Accordingly, it goes without saying that the first component mentioned below may be the second component within the spirit of the present invention.

Unless otherwise defined, all terms (including technical and scientific terms) used herein will have the meaning commonly understood by those of ordinary skill in the art to which this invention belongs. In addition, terms defined in a commonly used dictionary are not to be interpreted ideally or excessively unless specifically defined explicitly.

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

Before the description, the meaning of the terms used herein will be briefly described. However, it should be noted that the description of terms is for the purpose of helping the understanding of the present specification, and is not used in the meaning of limiting the technical idea of the present invention unless explicitly described as limiting the present invention.

1 is a block diagram illustrating a fire detection device according to an embodiment of the present invention.

As shown in FIG. 1 , the fire detection device 10 of the present invention includes a sensing unit 100 for sensing a first light wavelength due to fire and a second light wavelength due to sunlight, and the sensed first light wavelength and a determination unit 200 that determines whether or not a fire exists based on the second light wavelength.

In some cases, the present invention provides a camera unit 300 for photographing the surroundings to detect a fire, a communication unit 400 for transmitting an image obtained from the camera unit 300, a sensing unit 100, and a determination unit 200 ), a control unit 600 for controlling the communication unit 400 and the camera unit 300 , and a power supply unit for supplying power to the sensing unit 100 , the determination unit 200 , the camera unit 300 , and the communication unit 400 . (500) may be further included.

Here, the sensing unit 100 is disposed on one side of a base plate including a first mounting member having a flat shape and a second mounting member having both sides inclined at the same angle, and both sides of the second mounting member to generate a fire. A first optical sensor for sensing a first light wavelength by It may include a third optical sensor for sensing the second optical wavelength by

In this case, both side surfaces of the second mounting member may be inclined so that a disposition angle between the first and second photosensors is 60 degrees with respect to the center of both sides of the second mounting member.

In addition, the sensing unit 100 may have a 120 degree sensing angle range and a 50 m sensing distance range for a 4.3 μm optical wavelength through the first and second photosensors disposed on both sides of the second mounting member.

Here, the 120 degree sensing angle of the first and second photosensors may partially overlap each other.

For example, when the first and second photosensors are disposed on the second mounting member of the base plate, the sensing unit 100 may have a sensing distance of 50m with respect to the first light wavelength of about 120 degrees and less than or equal to 120 degrees. In the case of a range, the detectable angle may be wider, but this is only an example, and is not limited thereto.

Next, the determination unit 200 may determine that a fire has occurred when only the first light wavelength is detected and the second light wavelength is not detected from the sensing signal of the sensing unit 100 .

Here, the first and second optical sensors may be an optical sensor sensing a 4.3um light wavelength caused by fire, and the third optical sensor may be an optical sensor sensing a 3.9um optical wavelength caused by sunlight, which This is only an example, and the present invention is not limited thereto.

Accordingly, the determination unit 200 may determine that a fire occurs when only a 4.3 μm optical wavelength is detected from the sensing signal of the sensing unit 100 and a 3.9 μm optical wavelength is not detected.

The reason is that the 4.3um light wavelength is the light wavelength that appears in flames caused by fire, and the 3.9um light wavelength is the light wavelength that appears in the natural world caused by sunlight.

In addition, the determination unit 200 checks the sensing signal of the sensing unit 100 a plurality of times for each predetermined time in order to increase the reliability of the fire occurrence determination, and the generation pattern of the sensing signal for the light wavelength to be recognized as the same fire is If it is repeatedly recognized, it can be determined that a fire has occurred.

For example, the determination unit 200 repeats the process of checking the sensing signal 100 times for 5 seconds several times, and when the same fire occurrence pattern in which only the 4.3um optical wavelength is detected and the 3.9um optical wavelength is not detected repeatedly appears, fire It can be determined as the occurrence of the fire, and the reliability of the fire occurrence judgment can be increased.

In addition, the determination unit 200, when checking the sensing signal of the sensing unit 100 a plurality of times for each predetermined time, counts the intensity of the sensing signal exceeding the reference range a plurality of times for each predetermined time, and based on the counted number of times You can also judge the size of the fire.

For example, when the determination unit 200 repeats the process of checking the sensing signal 100 times for 5 seconds several times, the number of times the intensity of the sensing signal exceeds the reference range is counted and based on the counted number of times of fire size can be determined.

Here, the determination unit 200 may determine that the greater the number of times the intensity of the sensing signal exceeds the reference range, the greater the size of the fire.

In addition, the determination unit 200, when checking the sensing signal of the sensing unit 100 a plurality of times for each predetermined time, confirms whether the current time is a preset sunrise or sunset time, and if the current time is a preset sunrise or sunset time The fire determination may be performed by stopping the fire determination or by adjusting the numerical range corresponding to the sunrise or sunset time.

That is, the determination unit 200 may increase the reliability of the fire occurrence determination by stopping the fire occurrence determination during a time period in which a determination error probability due to natural light is high, such as sunrise or sunset time.

In some cases, the determination unit 200 determines the occurrence of a fire by adjusting the numerical range corresponding to the sensing signal received in a time period with a high probability of determination error due to natural light, such as sunrise or sunset time, etc. It is possible to increase the reliability of the fire occurrence judgment.

For example, the determination unit 200 changes the sensing sensitivity value of the sensing unit 100 to a value lowered from the default value to a preset level during a time period in which the probability of a judgment error due to the natural light is high, and the natural light, etc. When it is not a time period in which the probability of a judgment error due to the occurrence of a fire is high, the lowered numerical value is changed back to the original default value, thereby increasing the reliability of the fire occurrence determination.

Next, the power supply unit 500 may supply power to the sensing unit 100 , the determination unit 200 , the camera unit 300 , the communication unit 400 , and the control unit 600 , which can be powered by electricity or solar power at all times. The generated power can be supplied.

In addition, the communication unit 400 may be communicatively connected to an external relay device or an external server.

Here, the communication connection network may include both wired/wireless networks, between the fire detection device 10 and the relay device, or between the fire detection device 10 and the server, or the fire detection device 10 ) and a communication network that supports various communication standards or protocols for pairing and/or data transmission/reception between a user terminal.

These wired/wireless networks include all communication networks to be supported now or in the future according to the standard, and can support one or more communication protocols for the same.

Such wired/wireless networks include, for example, Universal Serial Bus (USB), Composite Video Banking Sync (CVBS), Component, S-Video (analog), Digital Visual Interface (DVI), High Definition Multimedia Interface (HDMI). , RGB, D-SUB networks for wired connection and communication standards and protocols for them, Bluetooth, RFID (Radio Frequency Identification), infrared communication (IrDA: Infrared Data Association), UWB (Ultra Wideband), ZigBee, Digital Living Network Alliance (DLNA), Wireless LAN (WLAN) (Wi-Fi), Wibro (Wireless broadband), Wimax (World Interoperability for Microwave Access), High Speed Downlink Packet Access (HSDPA), LTE/ To be formed by a network for wireless connection such as Long Term Evolution/LTE-Advanced (LTE-A), Wi-Fi direct, WiFi HaLow, and LoRa, and a communication standard or protocol for it can

For example, the communication unit 400 may include a wireless Internet module, a short-range communication module, and the like.

Wireless Internet technologies include, for example, WiFi HaLow, LoRa, Wireless LAN (WLAN), Wireless-Fidelity (Wi-Fi), Wireless Fidelity (Wi-Fi) Direct, Digital Living Network (DLNA). Alliance), WiBro (Wireless Broadband), WiMAX (World Interoperability for Microwave Access), HSDPA (High Speed Downlink Packet Access), HSUPA (High Speed Uplink Packet Access), LTE (Long Term Evolution), LTE-A (Long Term Evolution) -Advanced), etc., and the wireless Internet module transmits and receives data according to at least one wireless Internet technology within a range including Internet technologies not listed above.

From the point of view that wireless Internet access by WiBro, HSDPA, HSUPA, GSM, CDMA, WCDMA, LTE, LTE-A, etc. is made through a mobile communication network, the wireless Internet module for performing wireless Internet access through a mobile communication network is It may be understood as a kind of module.

The short-range communication module is for short-range communication, and includes Wi-Fi HaLow, LoRa, Bluetooth™, Radio Frequency Identification (RFID), and Infrared Data Association (IrDA). , UWB (Ultra Wideband), ZigBee, NFC (Near Field Communication), Wi-Fi (Wireless-Fidelity), Wi-Fi Direct, using at least one of Wireless USB (Wireless Universal Serial Bus) technologies to support short-distance communication. can

For example, the communication unit 400 of the present invention may wirelessly transmit an image obtained from the camera unit 300 in a frequency band of about 920 MHz, which is only an embodiment, but is not limited thereto.

In addition, the control unit 600 of the present invention checks the communication network state, and controls the communication unit 400 to transmit the image acquired from the camera unit 300 at high speed in real time if the communication network state is normal, and the communication network state If is abnormal, the communication unit 400 may be controlled to process and transmit the image obtained from the camera unit 300 at a low speed.

As described above, according to the present invention, since the data transmission method can be changed according to the communication network condition even in an area where communication is not smooth, such as in a mountainous area, emergency information such as a fire can be transmitted smoothly.

For example, when the image acquired from the camera unit 300 is transmitted at high speed, the control unit 600 of the present invention controls the communication unit 400 to transmit the image at high speed using a WiFi HaLow communication method, and the camera When the image acquired from the unit 300 is transmitted at a low speed, the communication unit 400 may be controlled to transmit the image at a low speed using a LoRa communication method, which is only an example, but is not limited thereto.

In addition, the control unit 600 of the present invention controls the camera unit 300 to take a video in normal times, and transmits the video acquired from the camera unit 300 in real time, and when a fire occurs, the fire scene The camera unit 300 may be controlled to further take still-cut photos of a higher resolution than a preset level to be easily identified with the naked eye, and the still-cut photos obtained from the camera unit 300 may be transmitted together with the moving picture. In this case, the high resolution above the preset level may be a resolution one or several steps higher than the resolution of the moving picture.

In addition, the control unit 600 of the present invention controls the camera unit 300 to take a video when the communication network state is normal, and the communication unit 400 to transmit the video acquired from the camera unit 300 at high speed in real time. control, and if the communication network condition is abnormal, the camera unit 300 is controlled to take a still-cut picture in high resolution, and the still-cut picture obtained from the camera unit 300 is transmitted at a low speed in a time-lapse method. The communication unit 400 may be controlled.

In addition, the controller 600 of the present invention may control the communication unit 400 to transmit the image obtained from the camera unit 300 to the communication-connected relay device when it is connected to at least one relay device.

Here, the relay device may copy the image acquired from the camera unit 300 and retransmit it to another relay device or an external server after a predetermined time, but this is only an example and is not limited thereto.

As described above, the present invention is disposed on the second mounting member having both sides inclined at the same angle and disposed on the first mounting member having a flat shape and two optical sensors for sensing a 4.3um light wavelength caused by fire. By detecting the occurrence of a fire based on a sensing signal received from a single optical sensor that senses a light wavelength of 3.9um by light, it is possible to extend the fire detection range and increase the accuracy of fire detection.

In addition, according to the present invention, by processing the image obtained from the camera unit to be transmitted at a high speed or at a low speed according to the communication network state, it is possible to have a smooth communication effect even in a mountainous area.

FIG. 2 is a view for explaining the sensing unit of FIG. 1 , and FIG. 3 is a view for explaining the base plate of the sensing unit.

As shown in FIGS. 2 and 3, the sensing unit of the present invention includes a first mounting member 160 having a flat shape and a second mounting member 150 having both sides inclined at the same angle as a base plate ( 110), disposed on one side of both sides of the second mounting member 150 and disposed on the other side of the first optical sensor 120 and the second mounting member 150 for sensing a 4.3um light wavelength caused by fire to include a second optical sensor 130 for sensing a 4.3um light wavelength caused by fire, and a third optical sensor 140 disposed on the first mounting member 160 to sense a 3.9um optical wavelength by sunlight can

At this time, both sides of the second mounting member 150 are inclined so that the disposition angle between the first optical sensor 120 and the second optical sensor 130 is 60 degrees with respect to the center of both sides of the second mounting member 150 . can be formed.

Here, the sensing unit, through the first and second optical sensors 120 and 130 disposed on both sides of the second mounting member 150 of the base plate 110, a sensing angle range of about 120 degrees for a light wavelength of 4.3um and about 50 m It may have a sensing distance range.

In addition, the 120 degree sensing angle of the first and second photosensors 120 and 130 may partially overlap each other.

And, the sensing unit, the first optical sensor 120 and the second optical sensor 130 are disposed on the same line with each other, the third optical sensor 140 for the first and second optical sensors (120, 130) It may be arranged on a different line.

Here, the third photosensor 140 may be disposed between the first photosensor 120 and the second photosensor 130 on a line different from that of the first and second photosensors 120 and 130 .

Next, the base plate 110 may be formed to protrude so that the second mounting member 150 is stepped with respect to the first mounting member 160 .

Next, the base plate 110, the first mounting groove 122 formed on one side of the second mounting member 150 for mounting the first optical sensor 120, the mounting of the second optical sensor 130 A second mounting groove 132 formed on the other side of the second mounting member 150 for mounting, and a third mounting groove 142 formed in the first mounting member 160 for mounting the third optical sensor 140 . may include.

In addition, in the base plate 110, first and second fastening grooves 171 and 172 for inserting a fastening member to fix the base plate 110 to both sides of the third mounting groove 142 may be disposed. .

4 is a view for explaining an image transmission process of the fire generating device.

As shown in FIG. 4 , the fire occurrence detection device 10 of the present invention may transmit data including a fire-related image to the surrounding repeater 20 or the server 30 in a frequency band of about 920 MHz.

Here, the fire detection device 10 of the present invention may check the communication network status and, if the communication network status is desired, may transmit image data at high speed in real time.

However, the fire detection device 10 of the present invention may check the communication network state and, if the communication network state is not smooth, process the image data and transmit the image data at a low speed.

As described above, according to the present invention, since the data transmission method can be changed according to the communication network condition even in an area where communication is not smooth, such as in a mountainous area, emergency information such as a fire can be transmitted smoothly.

For example, the fire detection device 10 of the present invention can transmit image data at high speed using a Wi-Fi HaLow communication method when the communication network condition is desired, and when the communication network condition is not desired, It is possible to transmit image data at a low speed using the LoRa communication method.

In addition, the fire detection device 10 of the present invention transmits the captured video in real time by shooting a video, and when a fire occurs, a still-cut photo is taken with a high resolution higher than a preset level instead of a video. One still cut picture can be transmitted.

In addition, the fire detection device 10 of the present invention, if the communication network state is normal, by shooting a video and transmitting the captured video in real time, and if the communication network condition is abnormal, by taking a still-cut photo in high resolution. Still-cut photos can be transmitted at a low speed in a time-lapse method.

Also, when the fire detection device 10 of the present invention is communicatively connected with at least one relay device 20 , it may transmit image data to the communication-connected relay device 20 .

Here, the relay device 20 may copy the image data obtained from the fire detection device 10 and retransmit it to another relay device 20 or an external server 30 after a predetermined time, which is only an example. , but is not limited thereto.

As described above, the present invention is disposed on the second mounting member having both sides inclined at the same angle and disposed on the first mounting member having a flat shape and two optical sensors for sensing a 4.3um light wavelength caused by fire. By detecting the occurrence of a fire based on a sensing signal received from a single optical sensor that senses a light wavelength of 3.9um by light, it is possible to extend the fire detection range and increase the accuracy of fire detection.

In addition, according to the present invention, by processing the image acquired from the camera unit to be transmitted at a high speed or at a low speed depending on the state of the communication network, it is possible to have a smooth communication effect even in a mountainous area.

The method according to an embodiment of the present invention described above may be implemented as a program (or application) to be executed in combination with a server, which is hardware, and stored in a medium.

The above-described program is C, C++, JAVA, machine language, etc. that a processor (CPU) of the computer can read through a device interface of the computer in order for the computer to read the program and execute the methods implemented as a program It may include code (Code) coded in the computer language of Such code may include functional code related to functions defining functions necessary for executing the methods, etc. can do. In addition, the code may further include additional information necessary for the processor of the computer to execute the functions or code related to memory reference for which location (address address) in the internal or external memory of the computer should be referenced. have. In addition, when the processor of the computer needs to communicate with any other computer or server located remotely in order to execute the functions, the code uses the communication module of the computer to determine how to communicate with any other computer or server remotely. It may further include a communication-related code for whether to communicate and what information or media to transmit and receive during communication.

The storage medium is not a medium that stores data for a short moment, such as a register, a cache, a memory, etc., but a medium that stores data semi-permanently and can be read by a device. Specifically, examples of the storage medium include, but are not limited to, ROM, RAM, CD-ROM, magnetic tape, floppy disk, and optical data storage device. That is, the program may be stored in various recording media on various servers accessible by the computer or in various recording media on the computer of the user. In addition, the medium may be distributed in a computer system connected by a network, and a computer readable code may be stored in a distributed manner.

The steps of a method or algorithm described in relation to an embodiment of the present invention may be implemented directly in hardware, as a software module executed by hardware, or by a combination thereof. A software module may contain random access memory (RAM), read only memory (ROM), erasable programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), flash memory, hard disk, removable disk, CD-ROM, or It may reside in any type of computer-readable recording medium well known in the art to which the present invention pertains.

As mentioned above, although embodiments of the present invention have been described with reference to the accompanying drawings, those skilled in the art to which the present invention pertains can realize that the present invention can be embodied in other specific forms without changing its technical spirit or essential features. you will be able to understand Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive.

Claims (10)

a camera unit for photographing the surroundings to detect fire;
a communication unit for wirelessly transmitting the image obtained from the camera unit in a 920 MHz frequency band;
a sensing unit for sensing a 4.3um optical wavelength caused by fire and a 3.9um optical wavelength caused by sunlight;
a determination unit for judging whether a fire exists based on the sensed 4.3um optical wavelength and 3.9um optical wavelength; and
a power supply unit for supplying power to the camera unit, the communication unit, the sensing unit, the determination unit and the control unit, or for supplying power generated by solar power generation;
The control unit checks the communication network status, and controls the communication unit to transmit the image acquired from the camera unit at high speed in real time if the communication network condition is normal, and if the communication network condition is abnormal, the obtained from the camera unit Controls the communication unit to process the image and transmit it at a low speed, and control the communication unit to transmit the image obtained from the camera unit to the communication-connected relay device when communication is connected with at least one relay device,
The relay device copies the image acquired from the camera unit and retransmits it to another relay device or an external server after a predetermined time,
The sensing unit,
a base plate including a first mounting member having a flat shape and a second mounting member having both side surfaces inclined at the same angle;
a first optical sensor disposed on one of both sides of the second mounting member to sense a 4.3um light wavelength caused by the fire;
a second optical sensor disposed on the other side of both sides of the second mounting member to sense a 4.3um light wavelength caused by the fire; and
and a third photosensor disposed on the first mounting member to sense a 3.9um light wavelength by the sunlight,
Both side surfaces of the second mounting member are inclined so that a disposition angle between the first optical sensor and the second optical sensor is 60 degrees with respect to the center of both side surfaces of the second mounting member,
The sensing unit has a 120 degree sensing angle range and a 50 m sensing distance range for a 4.3um optical wavelength through the first and second photosensors disposed on both sides of the second mounting member,
The first optical sensor and the second optical sensor are disposed on the same line with each other,
The third photosensor is disposed on a different line with respect to the first photosensor and the second photosensor, and is disposed between the first photosensor and the second photosensor,
The base plate is formed to protrude so that the second mounting member is stepped with respect to the first mounting member,
The determination unit may determine that the fire occurs when only the 4.3um optical wavelength is detected from the sensing signal of the sensing unit and the 3.9um optical wavelength is not detected. According to claim 1,
The judging unit,
A fire detection device, characterized in that the sensing unit checks the sensing signal a plurality of times for a predetermined period of time, and when the pattern of the light wavelength to be recognized as a fire is repeatedly recognized, it is determined that the fire has occurred. 3. The method of claim 2,
The judging unit,
When checking the sensing signal of the sensing unit a plurality of times for each predetermined time, the intensity of the sensing signal exceeding a reference range is counted a plurality of times for each predetermined time, and the size of the fire is determined based on the counted number of times, characterized in that fire detection device. 4. The method of claim 3,
The judging unit,
When checking the sensing signal of the sensing unit a plurality of times for each predetermined time, it is checked whether the current time is a preset sunrise or sunset time, and if the current time is a preset sunrise or sunset time, the fire occurrence determination is stopped or the sunrise or sunset time Fire occurrence detection device, characterized in that the fire occurrence determination is performed by adjusting the numerical number range corresponding to . delete delete delete According to claim 1,
The control unit is
When the high-speed transmission of the image acquired from the camera unit, the communication unit to control the high-speed transmission of the image in a Wi-Fi standard communication method,
When the image acquired from the camera unit is transmitted at a low speed, the fire detection device according to claim 1 , wherein the communication unit controls the communication unit to transmit the image at a low speed using a communication method using a 920 MHz frequency band. 9. The method of claim 8,
The control unit is
Controls the camera unit to take a video, and transmits the video acquired from the camera unit in real time,
Fire occurrence detection device, characterized in that when a firebird occurs, the camera unit is controlled to take a still-cut picture of a high resolution higher than a preset level, and the still-cut picture obtained from the camera unit is transmitted. 10. The method of claim 9,
The control unit is
If the communication network state is normal, control the camera unit to shoot a video, and control the communication unit to transmit the video acquired from the camera unit at high speed in real time,
When the communication network state is abnormal, controlling the camera unit to take the still-cut picture, and controlling the communication unit to transmit the still-cut picture obtained from the camera unit at a low speed in a time-lapse method fire detection device.

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