KR102417075B1 - Fire detecting system using internet of things - Google Patents

Abstract

The present invention relates to a smart fire detection system using Internet of Things (IoT). The system detects fire occurring in a building to issue a real-time fire signal coordination alarm to another fire detector with a mesh network method, determines a broadband wireless communication network with great signal integrity and transmits a fire situation to a management server to reduce a possibility of failure of fire alarm transmission caused by communication disruption, compensates for shaded areas caused by a failure of a communication module to enable efficient initial fire suppression and minimize loss of properties and lives, and learns various environmental information to determine a non-fire alarm with high reliability and optimizes a sensitivity of a fire detector on the spot to minimize a phenomenon of fire alarm negligence caused by a non-fire alarm.

Description

Smart IoT fire detection system {FIRE DETECTING SYSTEM USING INTERNET OF THINGS}

The present invention relates to a smart IoT fire detection system, and more particularly, it detects a fire that occurs in a building, issues a real-time fire signal linkage alarm to other fire detectors in a mesh network method, and provides a broadband wireless communication network with excellent signal integrity. A smart IoT fire detection system that determines and transmits the fire situation to the management server to reduce the possibility of failure to deliver fire alarms due to communication failure and to compensate for shadowed areas due to communication module failures, thereby effectively suppressing the initial fire and minimizing the loss of property and life. is about In addition, the present invention learns various environmental information to determine a highly reliable non-fire alarm and optimizes the sensitivity of a fire detector in the field to minimize the lapse of a fire alarm due to a non-fire alarm.

In general, fire detectors that detect smoke or heat are installed at various locations inside the building in a general type of fire detection system constructed in buildings such as apartments or high-rise buildings, and each fire detector is located in the building's management room or disaster prevention room. It is connected to the located receiver, and the receiver is connected to a plurality of alarm devices (entrance indicator, fire alarm, etc.) provided in the building.

Through this configuration, when a fire occurs in the building, an alarm according to the fire sounds, helping people to evacuate from the fire site quickly.

Recently, as the need for IoT-based disaster, safety monitoring, and predictive disaster management has increased, when a fire occurs, a technology for transmitting the fact of a fire from a fire detector to an organization that extinguishes a fire through a communication network has been disclosed. .

Korean Patent Application Laid-Open No. 10-2016-0034125 (hereinafter referred to as prior art) discloses a technology for transmitting a fire signal and an escape route to a personal terminal when a fire occurs, and transmitting the location of survivors along with a fire signal to a server of the Fire Service. do.

However, in the prior art, when the communication state between the sensor unit and the management server is poor, it is impossible to check whether the management server has received the detection signal from the sensor unit, and if the fire detection signal is not received due to poor communication, it is impossible to deal with fire. there is

Republic of Korea Patent Publication No. 10-2016-0034125 (2016.03.29)

An object of the present invention is to provide a smart IoT fire detection system that detects a fire occurring in a building and propagates a real-time fire signal to other adjacent fire detectors connected by a network.

The problem to be solved by the present invention is to determine a broadband wireless communication network with excellent signal integrity and transmit the fire situation to the management server, thereby reducing the possibility of fire alarm transmission failure due to communication failure and supplementing the shadow area due to the failure of the communication module. To provide a fire detection system.

The problem to be solved by the present invention is to learn various environmental information to determine a reliable non-fire alarm and to optimize the fire detector sensitivity in the field to minimize the fire alarm lapse due to non-fire alarm. Provide a smart IoT fire detection system will do

An object of the present invention is to provide a smart IoT fire detection system that alerts a specific location of a fire area through a fire detector installed in a fire area and a fire detector installed in the vicinity.

A smart IoT fire detection system according to an aspect of the present invention is connected to a sensor for detecting the occurrence of a fire and at least one of the surrounding fire detectors through a mesh network. A short-distance communication module that propagates a fire signal to a fire detector, an alarm that outputs a fire alarm with at least one of sound and light when a fire is detected by the sensor or a fire signal is propagated from another fire detector, and a plurality of broadband wireless communication networks. It determines the priority of the broadband wireless communication network based on the signal quality and a broadband communication module that supports and transmits the fire signal to the management server, and after the fire signal is sent to the management server through the priority communication network, the management server When there is no acknowledgment response, a fire detector including a controller for controlling the broadband communication module to re-transmit a fire signal to the next priority communication network, and a response module for transmitting an acknowledgment to the fire detector when a fire signal is received from the fire detector It may include a management server that

The management server includes a fire detector DB for storing identification information of fire detectors to be managed, and environmental information including at least one of an installation address of the fire detector, an installation location in a building, an area of the installation location, and a height of the installation point. can do.

The response module of the management server searches the fire detector DB for the installation location of the fire detector that has sent the fire signal, and transmits a confirmation response including the searched installation location to the fire detector, and short-distance communication of the fire detector The module propagates the fire signal further including the installation location of the confirmation response to other fire detectors, and the alarm of the fire detector is based on the installation location when the installation location is included in the fire signal received from the other fire detectors. A voice message indicating the location of the fire can be output as a fire alarm.

The broadband communication module may support at least two or more of LoRa, 5G, LTE, 3GPP, and Wibro.

The sensor of the fire detector detects a fire in a smoke detection method, and the fire signal may include a fire occurrence fact, fire detector identification information, and smoke concentration.

The management server, the smoke concentration of the fire signal, time information including the reception date and time of the fire signal, identification information and environment information of the fire detector that transmitted the fire signal, and non-fire confirmation information The first correlation between the time-series trend of the smoke concentration and environmental information stored in the stored fire management DB and the fire management DB and the non-fire or the time-series trend of the previously stored smoke concentration and time information and the non-fire second It may further include a non-fire analysis module that analyzes the correlation and calculates the smoke measurement sensitivity of the fire determination standard for each environment or time.

The management server further includes an instruction module that transmits sensitivity adjustment information to the fire detectors to be managed when a preset period or a preset event occurs, and the fire detector, when the sensitivity adjustment information is received, It may further include an adjustment module for changing the fire detection determination criteria.

When the fire detector is newly installed, it may receive the sensitivity adjustment information from another adjacent fire detector.

According to the embodiment of the present invention, since a real-time fire signal is transmitted to other fire detectors in a mesh network method by detecting a fire occurring in a building, it is possible to quickly evacuate and respond to a fire by providing a wide range of alarms in the vicinity of the fire area.

According to the embodiment of the present invention, since a broadband wireless communication network with excellent signal integrity is determined and the fire situation is transmitted to the management server, the possibility of fire alarm transmission failure due to communication failure is reduced and the shadow area due to communication module failure is compensated for efficient initial fire. It is possible to minimize the suppression and loss of property and life.

According to the embodiment of the present invention, it is possible to learn various kinds of environmental information to determine a reliable non-fire alarm and to optimize the sensitivity of a fire detector in the field to minimize the lapse of a fire alarm due to a non-fire alarm.

According to the embodiment of the present invention, since the specific location of the fire area is alerted through the fire detector installed in the fire area and the fire detectors installed in the vicinity, it is possible to safely evacuate from the fire area.

1 is a schematic diagram illustrating a smart IoT fire detection system according to a first embodiment.
FIG. 2 is a block diagram showing the configuration of the fire detector and management server illustrated in FIG. 1 .
3 is a block diagram showing the configuration of a fire detector and a management server according to the second embodiment.
4 is a block diagram showing the configuration of a fire detector and a management server according to the third embodiment.
5 is a schematic diagram illustrating a smart IoT fire detection system according to the fourth embodiment.

Since the present invention can apply various transformations and can have various embodiments, specific embodiments are illustrated in the drawings and described in detail in the detailed description. However, this is not intended to limit the present invention to specific embodiments, and should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention.

In describing the present invention, if it is determined that a detailed description of a related known technology may obscure the gist of the present invention, the detailed description thereof will be omitted.

The terms used in the present application are only used to describe specific embodiments, and are not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly dictates otherwise. In the present application, terms such as “comprise” or “have” are intended to designate that a feature, number, step, operation, component, part, or combination thereof described in the specification exists, but one or more other features It should be understood that this does not preclude the existence or addition of numbers, steps, operations, components, parts, or combinations thereof.

Unless defined otherwise, 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 this invention belongs. Terms such as those defined in a commonly used dictionary should be interpreted as having a meaning consistent with the meaning in the context of the related art, and should not be interpreted in an ideal or excessively formal meaning unless explicitly defined in the present application. does not

Prior to the description, when a part in the entire specification "includes" or "includes" a certain component, it does not exclude other components, but may further include other components unless otherwise stated. means there is In addition, terms such as "...unit", "...module" and "component" described in the specification mean a unit that processes at least one function or operation, which It may be implemented in hardware, software, or a combination of hardware and software.

In addition, the term "embodiment" in this specification means serving as an illustration, example, or illustration, but the subject matter of the invention is not limited by such examples. Also, "comprising", "comprising", "having" and other similar terms are used, but when used in the claims, " as an open-ended transition word that does not exclude any additional or other element. It is used generically in a manner analogous to the term "comprising".

The various techniques described herein may be implemented in conjunction with hardware or software, or a combination of both, where appropriate. As used herein, the terms “Unit”, “System”, etc. are likewise used to refer to computer-related entities, i.e. hardware, a combination of hardware and software, software, or software in execution, equivalent. can be dealt with For example, a program module may be configured as equivalent to one component or a combination of two or more components. In addition, in the present invention, both the program and hardware executed in the terminal including the transmitter and the receiver may be configured in module units, and may be recorded in one physical memory or distributed between two or more memories and recording media. .

Also, terms such as first and second may be used to describe various elements, but the elements should not be limited by the terms. The above terms are used only for the purpose of distinguishing one component from another.

Hereinafter, embodiments according to the present invention will be described in detail with reference to the accompanying drawings, and in the description with reference to the accompanying drawings, the same or corresponding components are given the same reference numbers regardless of reference numerals, and overlapping A description will be omitted.

[First embodiment]

Hereinafter, the smart IoT fire detection system 10 according to the first embodiment of the present invention will be described in detail with reference to the drawings.

1 is a schematic diagram illustrating a smart IoT fire detection system 10 according to a first embodiment of the present invention.

Referring to Figure 1, the system 10 of the present invention detects a fire occurring in a building, issues a fire signal to other fire detectors 101 in real time in a mesh network method, and provides a broadband wireless communication network with excellent signal integrity. It determines and transmits the fire situation to the management server 200 that manages fire information. The fire detectors 100 and 101 may be installed on each floor of a building or in each room.

And the management server 200 provides a fire situation to the relevant organization 2 (eg, fire department, hospital, police station) based on the fire signal received from the fire detector 100 . In addition, the management server 200 transmits the fire situation to the portable devices 1 of users located in the corresponding building. Here, the users may be workers or residents working in the building, and the management server 200 may receive the user's mobile device 1 registered in advance. In the present invention, a building may also include a construction site, and in this case, a user may include a worker and a manager working at the site.

The management server 200 may transmit the fire situation to the related institution 2 and the mobile device 1 through SMS or a pop-up notification of an application, and the transmission method of the fire situation is not limited thereto.

In the present invention, the user's portable device 1 receives fire information from the management server 200 as an example. (For example, Bluetooth communication) may be provided with fire information. In this case, since the user's portable device 1 communicates with the fire detector 100 in a short range, it is possible without pre-registering the portable device 1 with the management server 200, and even if the user is in a place where a fire alarm cannot be heard, the portable device can be used. You can be aware of the fire situation. The mobile device 1 may include any one of a smart phone, a tablet PC, and a personal digital assistant (PDA).

FIG. 2 is a block diagram showing the configuration of the fire detector 100 and the management server 200 illustrated in FIG. 1 .

1 and 2, the system 10 of the present invention includes a fire detector 100 that detects a fire in a building and a management server 200 that receives a fire signal from the fire detector 100 when a fire occurs. include

The fire detector 100 includes a sensor 110 , a short-range communication module 130 , an alarm 120 , a broadband communication module 140 , and a controller 150 .

The sensor 110 is installed at a plurality of locations within the building (eg, on each floor or in each room) to detect a fire. The sensor 110 is for detecting whether smoke is generated, and may determine whether smoke is generated by detecting a change in transmittance of light generated due to the smoke. For example, the sensor 110 may include a light emitting element and a light receiving element, and may detect a change in transmittance of light in such a way that light emitted from the light emitting element is sensed through the light receiving element. The method for the sensor 110 to detect smoke in the present invention is not limited thereto.

The short-range communication module 130 is connected to at least one of the other fire detectors 101 in the vicinity through a mesh network, and when a fire is detected by the sensor 110, a fire signal is sent to the other fire detector 101 connected to the network. to spread In addition, the short-distance communication module 130 transmits a fire signal to the user's portable device 1 located adjacently.

The short-distance communication module 130 includes Bluetooth (Bluetooth), Wibro, WiFi, low-power Bluetooth (BLE, Bluetooth Low Energy), RFID (Radio Frequency Identification), infrared communication (IrDA, infrared Data Association), UWB (Ultra Wideband) ), ZigBee, WSN (Wireless Sensor Network), WLAN (Wireless LAN or Wifi) and UWB (Ultra Wideband) are supported.

For example, when WiFi wireless communication is adopted, the short-distance communication module 130 may be directly connected to another fire detector 101 by WIFI to propagate a fire signal, and also a router provided for each zone of a preset area of a building. It is also possible to propagate the fire signal to other fire detectors 101 via the .

The alarm 120 outputs a fire alarm with at least one of sound and light when a fire is detected by the sensor 110 or a fire signal is propagated from another fire detector 101 . The alarm 120 may output light in the form of a warning light. The alarm 120 may output a siren-type sound or a voice-type sound. The alarm 120 may alarm until the fire signal is stopped, or the alarm may be stopped under the control of an administrator.

The broadband communication module 140 supports a plurality of broadband wireless communication networks, and when a fire is detected by the sensor 110 , a fire signal is transmitted to the management server 200 .

The broadband communication module 140 supports at least two or more communication protocols among LoRa, 5G, 4G (LTE, Long Term Evolution), 3GPP, and Wibro.

LoRa (LoRa, LoRa, Long Range) communication is a mid-to-long-range wireless communication technology for IoT, and it is a low-power long-distance communication (LPWA) technology that helps objects to communicate with each other.

In the broadband communication module 140, the communication module is a mobile communication protocol such as 2G, 3G, 4G, or 5G, but a mobile communication protocol such as Wibro (Wireless broadband), Wimax (World Interoperability for Microwave Access), HSDPA (High Speed Downlink Packet Access), etc. Supports communication protocols. The 3rd Generation Partnership Project (3GPP) is a mobile communication standardization technology cooperation organization that provides standardized communication such as GSM, WCDMA, and GPRS.

The controller 150 determines the priority of the broadband wireless communication network based on the signal integrity, and the broadband communication module 140 transmits the fire signal to the management server 200 through the communication network of the determined priority.

Thereafter, the controller 150 receives an acknowledgment signal for the fire signal from the management server 200 . The controller 150 controls the broadband communication module 140 to retransmit a fire signal to a communication network of the next priority when the acknowledgment signal of the management server 200 is not received.

For example, the controller 150 determines a priority in the order of the strongest signal strength among LoRa, 5G, 4G (LTE, long term evolution), 3GPP, and Wibro communication protocols, and the broadband communication module 140 communicates with the best signal. The broadband communication module 140 is controlled to communicate with the management server 200 through a protocol.

And the controller 150 transmits a fire signal to the management server 200 through the communication protocol having the strongest signal from the broadband communication module 140, but if an acknowledgment signal is not received from the management server 200, the fire signal is managed It is determined that a communication failure has occurred in the process of being transmitted to the server 200 and controls the broadband communication module 140 to transmit a fire signal to the management server 200 through the next-order communication protocol.

The controller 150 may control the broadband communication module 140 to normally operate in the LoRa mode, which consumes the least power, and in the event of a fire, may prioritize the communication protocol with the highest signal integrity.

The short-distance communication module 130 propagates a fire signal to other network-connected fire detectors 101 when a fire is detected by the sensor 110 even when the broadband communication module 140 cannot communicate with the management server 200. .

The management server 200 monitors and responds to a fire situation. When a fire signal is received from the fire detector 100 , the management server 200 transmits an acknowledgment signal to the fire detector 100 . And when the management server 200 receives a fire signal from the fire detector 100, it transmits the address where the fire detector 100 is installed and the installation location in the building to the relevant institution (2) and the user's portable device (1). Allows for early response.

[Second embodiment]

Hereinafter, the smart IoT fire detection system 20 according to the second embodiment of the present invention will be described in detail with reference to the drawings.

3 is a block diagram showing the configuration of the fire detector 100 and the management server 200 according to the second embodiment.

Since the fire detector 100 and the management server 200 of the second embodiment basically have the same configuration and operation as the fire detector 100 and the management server 200 of the first embodiment, the same reference numerals are given and duplicate explanations are given. omit

Referring to FIG. 3 , the management server 200 according to the second embodiment further includes a fire detector DB 220 .

Identification information of all fire detectors 100 installed in a building is recorded, and identification information of all fire detectors 100 installed in each building is stored in the fire detector DB 220 .

In addition, in the fire detector DB 220, the installation address of the fire detector 100 (the address of the corresponding building), the installation location in the building (eg, the specific installation location such as a rooftop hallway, stairs, closed room), the area of the installation place, Environmental information including at least one of the height of the installation point is stored.

When the response module 210 receives a fire signal from the fire detector 100, the management server 200 sends a fire signal from the fire detector DB 220 using the identification information of the fire detector 100 ( 100) to search for environmental information. And, the management server 200 extracts the installation location of the fire detector 100 that has sent the fire signal from the environmental information, and the response module 210 of the management server 200 sends a confirmation response signal including the installation location to the fire. The signal is transmitted to the fire detector 100 that has sent it.

When the management server 200 receives a fire signal from the fire detector 100, it transmits the fire information including the address where the fire detector 100 is installed and the installation location in the building to the related organization 2 and the user's portable device 1 do. In addition, when the management server 200 transmits fire information to the relevant institution 2 , the area of the fire location (that is, the area of the place where the fire detector 100 that detects the fire is installed), the height of the installation point of the fire detector is transmitted together so that the related organizations (2) can infer the rate of spread of the fire, and the personnel and equipment necessary for extinguishing the fire can be prepared in advance.

The fire detector 100 that has transmitted the fire signal to the management server 200 receives a response confirmation signal including the installation location of the fire detector 100 from the response module 210 of the management server 200 .

In addition, the fire detector 100 extracts the installation location data from the received response confirmation signal, and outputs a voice message indicating the location of the fire as a fire alarm based on the extracted installation location.

For example, in the first fire alarm for the fire detector 100 until a response confirmation signal including the installation location is received from the management server 200, “a fire has occurred. Please evacuate immediately,” but after the confirmation signal including the installation location arrives, the second fire alarm says “A fire has occurred in the 4th floor furnishings room. Please evacuate immediately” and print out the specific fire location. For example, the fire detector 100 may output a siren sound instead of a voice output in the primary fire alarm, and when the response confirmation signal is received in real time, the secondary fire alarm may be immediately performed instead of the primary fire alarm.

The fire detector 100 installed in the area where the fire occurred propagates the fire signal including the installation location of the corresponding fire detector 100 to other fire detectors 101 through the short-distance communication module 130 .

The other fire detector 101 receiving the fire signal outputs a voice message indicating the location of the fire as a fire alarm based on the installation location.

[Third embodiment]

Hereinafter, the smart IoT fire detection system 30 according to the third embodiment of the present invention will be described in detail with reference to the drawings.

4 is a block diagram showing the configuration of the fire detector 100 and the management server 200 according to the third embodiment.

Since the fire detector 100 and the management server 200 of the third embodiment basically have the same configuration and operation as the fire detector 100 and the management server 200 of the first and second embodiments, the same reference numerals are used. and duplicate descriptions are omitted.

Referring to FIG. 4 , the management server 200 according to the third embodiment further includes a fire management DB 230 and a non-fire analysis module 240 . and an instruction module 250 .

In the fire management DB 230 , information included in the fire signal received from the fire detector 100 in which the alarm operation is activated is stored. For example, the fire signal information stored in the fire management DB 230 includes a fire occurrence fact, fire detector 100 identification information, and smoke concentration.

The fact that a fire occurred included in the information of the fire signal includes information on non-fire confirmation that was activated when the actual fire did not occur. For example, the non-fire confirmation information may be generated when an alarm is sounded from the fire detector 100 and then forcibly shut down by the building manager when a malfunction occurs due to a cause other than a fire. For example, when an alarm is malfunctioned due to cigarette smoke, thick yellow dust, and fine dust generated in the vicinity of the fire detector 100 , the fire detector 100 forcibly terminates the alarm by an administrator and generates non-fire information.

The smoke concentration may be estimated by a light sensing value (a light receiving current value) based on a light transmittance measured by the sensor 110 of the fire detector 100 .

The fire management DB 230 further stores smoke concentration included in the fire signal, time information including the reception date and time of the fire signal, and non-fire information included in the fire signal.

In addition, in the fire management DB 230 , the installation address of the fire detector 100 provided from the fire detector DB 220 (the address of the corresponding building), the installation location in the building (eg, the rooftop hallway, stairs, closed room, etc.) installation location), the area of the installation site, and environmental information including at least one of the height of the installation point is stored.

The non-fire analysis module 240 is a first correlation between the time-series trend of the smoke concentration and environmental information stored in the fire management DB 230 and the non-fire or the time-series trend of the smoke concentration and time information stored in advance and the non-fire The second correlation is analyzed, and the smoke measurement sensitivity of the fire judgment standard is calculated for each environment or time.

For example, the non-fire analysis module 240 determines that the place where the fire detector 100 is installed is a corridor with a low ceiling and a small area, and the smoke concentration measured by the fire detector 100 installed in the corridor is periodically or When non-fire information is generated together while aperiodic increase and decrease are repeated, the cause of non-fire information (eg, cigarette smoke) is stored in the fire management DB 230 to learn through artificial intelligence (eg, , deep learning or machine learning). The cause of the non-fire information can be ascertained by the manager after the fire signal is generated.

And the non-fire analysis module 240 analyzes the correlation of non-fire with respect to the changed smoke concentration and environmental information about the corridor having the same condition. The non-fire analysis module 240 determines that the smoke detector 100 malfunctions due to another cause, such as cigarette smoke, when the smoke has the changed smoke concentration in the corresponding place (corridor) based on the correlation diagram.

And the non-fire analysis module 240 calculates the smoke measurement sensitivity for each environment of the fire determination standard for the situation, and seals the sensitivity adjustment information in which the smoke detection sensitivity is changed (eg, reduced sensitivity) based on the smoke measurement sensitivity It is transmitted to the corresponding fire detector 100 installed in the corridor. Accordingly, the fire detector 100 installed in the corridor does not generate a fire signal only for cigarette smoke.

On the other hand, when the sensitivity adjustment information is not provided to the fire detector 100, the management server 200 compares the smoke concentration (eg, light-receiving current value) included in the fire signal with the DB, and the management server 200 A response confirmation signal is sent to the fire detector 100 only when a displacement value in which the smoke concentration exceeds the usable range (non-fire range above) occurs, and a displacement value where the smoke concentration is less than the usable range (non-fire range) When this occurs, it is possible to control and remove non-fire alarm factors in advance by transmitting a control signal to stop the alarm operation of the fire detector 100 .

As another example, the non-fire analysis module 240 transmits a fire signal from at least one fire detector 100 installed in a building located in a specific area to another month ( season), and if all fire signals received in March to April are non-fire, the correlation between smoke concentration included in the fire signal and non-fire status for time information for March to April Analyze the diagram. And the non-fire analysis module 240 determines that the fire detector 100 malfunctions due to other causes, such as yellow dust, when the smoke concentration is in March to April based on the correlation.

And the non-fire analysis module 240 calculates the smoke measurement sensitivity for each environment of the fire determination criterion, and based on the smoke measurement sensitivity, the sensitivity adjustment information in which the smoke detection sensitivity is changed (for example, the sensitivity is reduced) is stored in the building in the area. It is transmitted to the installed fire detector 100 .

When the fire detector 100 receives the sensitivity adjustment information with the changed sensitivity from the non-fire analysis module 240 , the fire detection determination criterion of the sensor 110 is changed through the adjustment module 160 .

The fire detector 100 detects a fire based on the sensitivity adjustment information, but when a fire signal is transmitted from other nearby fire detectors 101, the smoke detection sensitivity is automatically changed to before adjustment.

When a new fire detector 100 is installed near the fire detector 100 from which the sensitivity adjustment information has been received, the installed new fire detector 100 communicates with other fire detectors 101 nearby to receive the sensitivity adjustment information. can

Meanwhile, the management server 200 may further include an instruction module 250 .

The instruction module 250 transmits sensitivity adjustment information to the fire detectors 100 to be managed when a preset period or a preset event occurs. For example, the preset period may be a specific season (for example, March to April with severe yellow dust) analyzed by the non-fire analysis module 240, and the preset event artificially changes the smoke detection sensitivity by an administrator This is a case in which a control signal for

[Fourth embodiment]

In the fourth embodiment, the fire detector does not directly transmit a fire signal to the management server, but the short-distance communication module of the fire detector sends a fire signal to a nearby router and repeater (or directly to a repeater) through wired or wireless communication. The fire alarm connected to the repeater sends a fire signal to the management server through the Internet or broadband communication.

Fig. 5 is a block diagram showing the system of the fourth embodiment.

As shown in FIG. 5 , the system 10 of the fourth embodiment includes a fire detector 100 , a fire report device 300 , and a management server 200 .

Here, since the management server 200 has the same technical configuration as the management server 200 in the first to third embodiments, a duplicate description will be omitted.

The fire detector 100 has almost the same technical configuration as the fire detector 100 in the first to third embodiments, and has the following differences.

First, the fire detector 100 of the fourth embodiment does not include the broadband communication module 140 , and the broadband communication module 140 is provided in a separate fire reporting device 300 .

Second, in the fire detector 100 of the fourth embodiment, the short-distance communication module 130 separately provides a fire signal according to the fire detection in addition to the function of performing mesh networking (or Access Point, AP) and/or a router (or It further performs a function of transmitting to the fire reporting device 300 through a Network Address Translator (NAT).

The fire report device 300 is connected to the router and sends a fire signal to the management server 200 through the Internet. Alternatively, the fire report device 300 may include a broadband communication module (not shown). In this case, the broadband communication module of the fire report device 300 performs the same operation as in the first to third exemplary embodiments, The difference is that the received response signal is not directly transmitted to the fire detector 100 but is transmitted to the fire detector 100 via the fire receiver 300 and a router and/or a repeater.

Although the above has been described with reference to several embodiments of the present invention, those of ordinary skill in the art can use the present invention within the scope not departing from the spirit and scope of the present invention described in the claims below. It will be understood that various modifications and variations are possible.

100: fire detector
110: sensor
120: alarm
130: short-distance communication module
140: broadband communication module
150: controller
200: management server
210: response module
300: fire report

Claims (8)

A sensor that detects the occurrence of a fire;
A short-distance communication module connected to at least one of the surrounding fire detectors through a mesh network and transmitting a fire signal to other network-connected fire detectors when a fire is detected by the sensor;
an alarm outputting a fire alarm with at least one of sound and light when a fire is detected by the sensor or a fire signal is transmitted from another fire detector;
A broadband communication module supporting a plurality of different types of broadband wireless communication networks and transmitting the fire signal to a management server; and
The priority of the broadband wireless communication network is determined based on signal soundness, and if there is no confirmation response from the management server after a fire signal is sent to the management server through the first communication network of the first priority, the second communication network of the next priority a fire detector including a controller for controlling the broadband communication module to re-transmit a fire signal to; and
A management server including a response module for transmitting an acknowledgment response to the fire detector when a fire signal is received from the fire detector
A smart IoT fire detection system that includes. According to claim 1,
The management server,
identification information of fire detectors subject to management;
A smart IoT fire detection system comprising a fire detector DB for storing environmental information including at least one of the installation address of the fire detector, the installation location in the building, the area of the installation location, and the height of the installation point. 3. The method of claim 2,
The response module of the management server searches the fire detector DB for the installation location of the fire detector that has sent the fire signal, and transmits a confirmation response including the searched installation location to the fire detector,
The short-distance communication module of the fire detector propagates the fire signal further including the installation location of the confirmation response to other fire detectors,
Smart IoT fire detection system, characterized in that when the fire signal received from another fire detector includes the installation location, the alarm of the fire detector outputs a voice message indicating the location of the fire as a fire alarm based on the installation location. . According to claim 1,
The broadband communication module, LoRa, 5G, LTE, 3GPP, smart IoT fire detection system, characterized in that supporting at least two or more of Wibro. According to claim 1,
The sensor of the fire detector detects a fire in a smoke detection method,
The fire signal is a smart IoT fire detection system, characterized in that it includes a fire occurrence fact, fire detector identification information, and smoke concentration. 6. The method of claim 5,
The management server,
A fire management DB that stores the smoke concentration of the fire signal, time information including the reception date and time of the fire signal, identification information and environment information of the fire detector that transmitted the fire signal, and non-fire confirmation information ; and
Analyzing the first correlation between the time-series trend of the smoke concentration and environmental information stored in the fire management DB and non-fire or the second correlation between the time-series trend of the smoke concentration and time information stored in advance and the non-fire status, A non-fire analysis module that calculates the smoke measurement sensitivity of fire judgment standards by environment or time
Smart IoT fire detection system further comprising a. 7. The method of claim 6,
The management server further comprises an instruction module for transmitting sensitivity adjustment information to the fire detectors of the management target when a preset period or a preset event occurs,
The fire detector may further include an adjustment module configured to change a fire detection determination criterion of the sensor when the sensitivity adjustment information is received. 8. The method of claim 7,
The fire detector is
When newly installed, the smart IoT fire detection system, characterized in that it receives the sensitivity adjustment information from another adjacent fire detector.

Images