KR20150136962A - Complex fire detector and fire monitoring system comprising the same - Google Patents

Abstract

The present invention relates to a complex fire detector, and a fire monitoring system comprising the same. The complex fire detector of the present invention comprises: a sensor unit which includes a temperature sensor which transmits a temperature detecting signal by detecting temperature, a flame sensor which transmits a flame detecting signal by detecting flame, and a smoke sensor which transmits a smoke detecting signal by detecting smoke; a control unit which complexly analyzes the detecting signals transmitted by the sensors constituting the sensor unit to determine whether a fire incident occurs or not; and a communications unit which communicates with external devices according to the control of the control unit. According to the present invention, data collected through various sensors installed in a monitoring site is complexly analyzed according to a determination criterion appropriately set for an environment of the monitoring site, thereby improving accuracy and reliability of determination on whether a fire incident occurs or not.

Description

FIELD OF THE INVENTION [0001] The present invention relates to a complex fire detector,

The present invention relates to a combined fire detector and a fire detection system including the same. More specifically, the present invention analyzes data collected through various sensors installed at a surveillance site according to a judgment criterion set in accordance with the environment of a surveillance site, thereby improving the accuracy and reliability of judgment as to whether a fire occurs And a fire monitoring system including the same.

Generally, fire-fighting facilities are installed in buildings and other facilities in preparation for fire situations. Here, the term "fire-fighting equipment" means equipment necessary for fire-fighting, which is obliged to be installed in accordance with the fire-related laws and regulations.

Examples of such fire fighting equipment include fire fighting equipment to suppress direct fire, an alarm facility to detect and notify fire to be able to fire or to fire, fire extinguishing facilities to prevent human injury in case of fire, There are fire fighting water facilities to store fire fighting water necessary for fire suppression and fire fighting activity facilities to perform fire fighting activity.

In addition, in order to check whether there is an abnormality in the fire fighting facilities, the Fire Brigade Fire Department periodically inspects the fire fighting facilities installed in facilities such as buildings regularly once or twice a year in accordance with the Fire Brigade Basic Law, Control is carried out on the fire-fighting equipment in the manner of carrying out the inspection.

However, management of facilities such as buildings is not normally carried out on the grounds of personnel and expenses for the operation and management of firefighting facilities, and inspection of firefighting facilities installed in facilities such as buildings of firefighting offices, There is a limit in understanding the abnormality of the fire fighting equipment.

In the case of a conventional fire monitoring system, when a plurality of sensors installed in a facility such as a building detects fire occurrence and operates, a fire receiver connected to the plurality of sensors operates, It is difficult to distinguish between the case where the sensor operates and the case where the sensor malfunctions according to the actual fire occurrence situation.

In addition, the conventional fire monitoring system is configured to collect data related to fire from various kinds of sensors for detecting a fire to determine whether a fire occurs or not. However, in the fire judgment, the characteristics of data and the characteristics There is a problem that the reliability of the fire judgment becomes poor.

Korean Published Patent Application No. 10-2010-0053128 (published on May 20, 2010, entitled: Network-based Fire Monitoring System)

Disclosure of Invention Technical Problem [8] Accordingly, the present invention has been made in view of the above problems, and an object of the present invention is to provide a combined fire detector and a fire monitoring system including the same which can improve the reliability and promptness of judging whether a fire occurs or not.

In addition, the present invention can improve the accuracy and reliability of the judgment as to whether or not a fire occurs by collectively analyzing data collected through various sensors installed at a surveillance site according to judgment criteria set in accordance with the environment of the surveillance site The present invention provides a combined fire detector and a fire monitoring system including the same.

In addition, the present invention can determine whether or not a fire has occurred on the basis of data collected from sensors, and secondarily allows an administrator to identify a fire site through a related image, And a fire detection system including the fire detection system.

According to an aspect of the present invention, there is provided a combined fire detector including a temperature sensor for detecting a temperature and transmitting a temperature sensing signal, a flame sensor for detecting a flame and transmitting a flame detection signal, And a communication unit for communicating with the outside according to the control of the control unit. The control unit controls the control unit to determine whether or not a fire has occurred, You can include it. Here, the controller may generate a collection data for each sensing signal by weighting the sensing signals transmitted by the sensors constituting the sensor unit, and if any one of the collected data for each sensing signal is determined to be a fire If it exceeds the reference value, it can be judged that a fire has occurred. In addition, the controller may generate a collection data for each sensing signal by assigning a weight to the sensing signals transmitted by the sensors constituting the sensor unit, and when the sum of the collected data for each sensing signal is a predetermined complex fire determination reference value If it exceeds, it can be judged that a fire has occurred. The sensor unit may further include a humidity sensor that senses humidity and transmits a humidity sensing signal. The control unit may weight a sensing signal transmitted from the temperature sensor, the flame sensor, and the smoke sensor, And a fire detection reference value storage unit for storing the fire detection reference values stored in the fire detection reference value storage unit for each of the detection signals set to be proportional to the humidity value, It is possible to select a fire judgment reference value for each detection signal and judge that a fire has occurred if any one of the collected data for each detection signal exceeds a fire judgment reference value for each selected detection signal. The sensor unit may further include a humidity sensor that senses humidity and transmits a humidity sensing signal. The control unit may weight a sensing signal transmitted from the temperature sensor, the flame sensor, and the smoke sensor, And the composite fire determination reference value storage unit in which complex fire determination reference values set to be proportional to the humidity value are stored is stored in the composite fire determination reference value storage unit, and the composite fire determination reference value corresponding to the humidity value included in the humidity detection signal transmitted by the humidity sensor If the sum of the collected data for each sensing signal exceeds the combined fire judgment criterion, it can be determined that a fire has occurred. In addition, unique ID numbers may be assigned to the sensors constituting the sensor unit. The image sensor may further include an image capturing unit including cameras for capturing an area where the sensors constituting the sensor unit are installed. The controller analyzes the sensing signals transmitted from the sensors, and transmits a sensing signal indicating the occurrence of a fire It is possible to control the camera corresponding to the sensor to photograph an area where the sensor is installed.

According to another aspect of the present invention, there is provided a temperature sensor for sensing a temperature and transmitting a temperature sensing signal, a flame sensor for detecting a flame and transmitting a flame detection signal, and a smoke sensor for detecting a smoke and transmitting a smoke detection signal, part; And a control unit for analyzing the sensing signals transmitted by the sensors constituting the sensor unit to determine whether or not a fire has occurred. The control unit controls the temperature sensor, the flame sensor, and the smoke sensor The control unit generates a collection data for each sensing signal by assigning a weight to each of the sensing data and the control unit determines that a fire occurs when a sum of the collected data for each sensing signal exceeds a first reference value, A complex fire detector can be provided.

Here, the controller may determine that a fire occurs when any one of the collected data for each sensing signal exceeds a predetermined second reference value in the absence of a confusion factor according to fire occurrence judgment.

In addition, the controller may adjust the weight of the sensing signal according to the confusion factor.

Each of the weights of the sensing signals may be normalized based on the second reference value. In addition, the sensor unit may further include a humidity sensor for sensing a humidity and transmitting a humidity sensing signal, wherein the controller is set to a spontaneous ignition environment according to humidity, and the humidity of the time interval corresponding to the humidity sensing signal is set to a predetermined third reference value , It is determined that the fire is a high risk. If it is set to a natural ignition environment according to the humidity and the humidity of the time interval according to the humidity sensing signal is less than the predetermined fourth reference value, it can be determined that the fire is high. In addition, the controller may adjust the reference value in proportion to the humidity value according to the humidity sensing signal in a spontaneous ignition environment according to the humidity. Also, the controller may adjust the reference value in inverse proportion to the humidity value according to the humidity sensing signal when the environment is a spontaneous ignition environment according to the humidity.

The combined fire monitoring system according to the present invention includes a temperature sensor for sensing a temperature and transmitting a temperature sensing signal, a flame sensor for detecting a flame and transmitting a flame detection signal, and a smoke sensor for detecting a smoke and transmitting a smoke detection signal A complex fire detector including a sensor unit and a control unit for determining whether or not a fire has occurred by analyzing the sensing signals transmitted by the sensors constituting the sensor unit and a communication unit for performing communication with the outside under the control of the control unit, And a fire detection control module connected to the combined fire detector by a Zigbee communication method and connected to a remote fire control system through an Ethernet communication method.

Here, the fire alarm system may further include a fire receiver connected to the combined fire detector by an RS-485 communication method. According to another aspect of the present invention, there is provided an apparatus for detecting a sensor signal, the sensor comprising: If it exceeds the reference value, it can be judged that a fire has occurred. In addition, the controller may generate a collection data for each sensing signal by assigning a weight to the sensing signals transmitted by the sensors constituting the sensor unit, and when the sum of the collected data for each sensing signal is a predetermined complex fire determination reference value If it exceeds, it can be judged that a fire has occurred. The sensor unit may further include a humidity sensor that senses humidity and transmits a humidity sensing signal. The control unit may weight a sensing signal transmitted from the temperature sensor, the flame sensor, and the smoke sensor, And a fire detection reference value storage unit for storing the fire detection reference values stored in the fire detection reference value storage unit for each of the detection signals set to be proportional to the humidity value, It is possible to select a fire judgment reference value for each detection signal and judge that a fire has occurred if any one of the collected data for each detection signal exceeds a fire judgment reference value for each selected detection signal. The sensor unit may further include a humidity sensor that senses humidity and transmits a humidity sensing signal. The control unit may weight a sensing signal transmitted from the temperature sensor, the flame sensor, and the smoke sensor, And the composite fire determination reference value storage unit in which complex fire determination reference values set to be proportional to the humidity value are stored is stored in the composite fire determination reference value storage unit, and the composite fire determination reference value corresponding to the humidity value included in the humidity detection signal transmitted by the humidity sensor If the sum of the collected data for each sensing signal exceeds the combined fire judgment criterion, it can be determined that a fire has occurred.

According to the present invention, there is provided an integrated fire detector capable of improving the reliability and promptness of judging whether a fire occurs or not, and a fire monitoring system including the same.

Also, by analyzing data collected through various sensors installed at the surveillance site according to the judgment criteria set in accordance with the environment of the surveillance site, it is possible to improve the accuracy and reliability of judging whether or not a fire occurs, And a fire monitoring system including the same.

In addition, it is possible to determine whether a fire has occurred on the basis of data collected from sensors, and secondly, an administrator can confirm a fire scene through a related image, thereby improving the accuracy of judgment of whether a fire occurs And a fire detection system including the fire detection system.

1 is a block diagram of a combined fire detector according to an embodiment of the present invention.
2 is a view for explaining an example of a specific operation of the combined fire detector according to an embodiment of the present invention.
3 is a view for explaining another specific example of the operation of the combined fire detector according to the embodiment of the present invention.
4 is a view for explaining another example of the specific operation of the combined fire detector according to the embodiment of the present invention.
5 is a view for explaining another example of the specific operation of the combined fire detector according to the embodiment of the present invention.
6 is a view illustrating a fire monitoring system according to an embodiment of the present invention.
FIGS. 7 and 8 are flowcharts of an operation method of a composite fire detector according to another embodiment of the present invention.

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

The terms first, second, etc. may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component. And / or < / RTI > includes any combination of a plurality of related listed items or any of a plurality of related listed items.

It is to be understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, . On the other hand, when an element is referred to as being "directly connected" or "directly connected" to another element, it should be understood that there are no other elements in between. Also, the fact that the first component and the second component on the network are connected or connected means that data can be exchanged between the first component and the second component by wire or wirelessly.

In addition, suffixes "module" and " part "for the components used in the following description are given merely for convenience of description, and do not give special significance or role in themselves. Accordingly, the terms "module" and "part" may be used interchangeably.

When such components are implemented in practical applications, two or more components may be combined into one component, or one component may be divided into two or more components as necessary.

1 is a block diagram of a combined fire detector according to an embodiment of the present invention.

Referring to FIG. 1, the combined fire detector 1 according to an embodiment of the present invention may include a sensor unit 10, an image capturing unit 20, a controller 30, and a communication unit 40.

The sensor unit 10 performs a function of collecting data related to a fire. The sensor unit 10 includes a temperature sensor 110 for sensing a temperature and transmitting a temperature sensing signal, a humidity sensor 120 for sensing a humidity and transmitting a humidity sensing signal, a flame sensor for sensing a flame, And a smoke sensor 140 for detecting smoke and transmitting a smoke detection signal. Sensors constituting the sensor unit 10 may be given unique identification numbers.

The image capturing unit 20 may include cameras for capturing an area where sensors constituting the sensor unit 10 are installed.

The control unit 30 may perform a function of determining whether a fire has occurred by analyzing the sensing signals transmitted by the sensors constituting the sensor unit 10 in a complex manner.

For example, when cameras are additionally installed in an area where sensors are installed and the controller 30 analyzes the sensing signals transmitted by the sensors, if there is a sensor that transmits a sensing signal indicating the occurrence of a fire, The camera corresponding to the transmitted sensor can control to photograph an area where the sensor is installed.

For example, the controller 30 may assign weight values to the sensing signals transmitted by the sensors constituting the sensor unit 10 to generate collected data for each sensing signal, If it is determined that the fire detection reference value for each detection signal is exceeded, it can be determined that a fire has occurred.

As another example, the controller 30 may assign weight values to the sensing signals transmitted by the sensors constituting the sensor unit 10 to generate collected data for each sensing signal. If the sum of the collected data for each sensing signal is preset If the combined fire judgment criterion is exceeded, it can be configured to judge that a fire has occurred.

In another example, the controller 30 weights the sensing signals transmitted by the temperature sensor 110, the flame sensor 130, and the smoke sensor 140 to generate collected data for each sensing signal, The fire detection reference value storage unit for storing the fire detection reference values for each sensing signal set to be proportional to the humidity reference value stored in the humidity sensor 120, And judges that a fire has occurred when any one of the collected data for each sensing signal exceeds the fire detection reference value for each selected sensing signal.

In another example, the controller 30 weights the sensing signals transmitted by the temperature sensor 110, the flame sensor 130, and the smoke sensor 140 to generate collected data for each sensing signal, The combined fire determination reference value storage unit for storing the composite fire determination reference values that are set to be proportional is selected to select a composite fire determination reference value corresponding to the humidity value included in the humidity detection signal transmitted by the humidity sensor 120, And judges that a fire has occurred when the value obtained by adding the data exceeds the combined fire judgment reference value.

The communication unit 40 performs communication with the outside under the control of the control unit 30. For example, the communication unit 40 performs Zigbee communication with the RS-485 communication unit 420 for RS- And a Zigbee communication unit 410 for the ZigBee communication unit.

Hereinafter, an exemplary operation of the combined fire detector according to an embodiment of the present invention will be described with reference to FIGS. 2 to 5 additionally.

2, the control unit 30 generates a collection data for each sensing signal by weighting the sensing signals transmitted by the sensors constituting the sensor unit 10, It is possible to judge that a fire has occurred when one of them exceeds a preset fire judgment reference value for each detection signal. In the following description, the weight is a value set by the administrator, and is set for temperature, flame, and smoke, respectively, and the weight can be adjusted according to the structure of the place where the sensor unit 10 is located and the internal finishing material. The weights can be varied by time values such as day and night or seasons.

First, in step S12, the temperature sensor 110 senses the temperature of the fire monitoring area and transmits a temperature sensing signal to the controller 30.

In step S14, the process of generating the temperature data by giving the temperature weight to the temperature data transmitted by the temperature sensor 110 is performed by the control unit 30. [

In step S16, the control unit 30 performs a process of comparing the temperature data with a previously stored temperature reference value. As a result of the comparison at step S16, if the temperature data exceeds the temperature reference value, the process proceeds to step S60, and the control section 30 determines the present situation as a fire occurrence situation. If it is determined in step S16 that the temperature data does not exceed the temperature reference value, the process returns to step S12, and the process of the temperature sensor 110 sensing the temperature is repeated.

In step S22, the flame sensor 130 senses the flame of the fire surveillance region and transmits the flame detection signal to the control unit 30.

In step S24, a process is performed in which the control unit 30 adds flame weight to the flame data transmitted by the flame sensor 130 to generate flame data.

In step S26, the control unit 30 compares the flame data with a preset flame reference value. As a result of the comparison at step S26, if the flame data exceeds the flame reference value, the process proceeds to step S60 and the control section 30 determines that the current situation is a fire occurrence situation. As a result of the comparison at step S26, if the flame data does not exceed the flame reference value, the process proceeds to step S22 and the flame sensor 130 detects the flame is repeated.

In step S32, a process is performed in which the smoke sensor 140 detects smoke in the fire monitoring area and transmits a smoke detection signal to the control unit 30. [

In step S34, a process of generating smoke data by giving a smoke weight to the smoke data transmitted by the smoke sensor 140 is performed.

In step S36, the control unit 30 performs a process of comparing the smoke data with a smoke reference value stored in advance. As a result of the comparison in the step S36, when the smoke data exceeds the smoke reference value, the process goes to S60, and the control section 30 judges the present situation as a fire occurrence situation. As a result of the comparison at step S36, if the smoke data does not exceed the smoke reference value, the process goes to step S22 to repeat the process of detecting the smoke by the smoke sensor 140. [

In step S70, a process of determining whether a work end signal is input by the administrator is performed, and when the end signal is not input, the above-described operation is repeated.

3, the controller 30 adds weight to the sensing signals transmitted by the sensors constituting the sensor unit 10 to generate collected data for each sensing signal, and adds up the collected data for each sensing signal If the value exceeds a preset complex fire judgment reference value, it is judged that a fire has occurred.

Operations in steps S12, S14, S22, S24, S32, S34, and S70 are the same as those described above with reference to FIG. 2, so duplicate descriptions are omitted.

In step S40, the control unit 30 performs a process of summing the collected data for each sensing signal, that is, the temperature data, the flame data, and the smoke data. It may be difficult to determine the occurrence of a fire with only one data, but it is possible to comprehensively and reliably judge the occurrence of a fire in various aspects through step S40 and step S50 described later.

In step S50, the control unit 30 performs a process of comparing the data sum value with a complex fire determination reference value stored in advance. As a result of the comparison in the step S50, if the data sum value exceeds the combined fire judgment reference value, the control unit 30 switches to S60, and the control unit 30 judges the current situation as a fire occurrence situation. As a result of the comparison in step S56, when the data sum value does not exceed the combined fire judgment reference value, the process of detecting the temperature, flame and smoke is repeated.

4, in step S310, the controller 30 weights the sensed signals transmitted by the temperature sensor 110, the flame sensor 130, and the smoke sensor 140, Are generated.

In step S320, the control unit 30 refers to the fire detection reference value storage unit for each detection signal storing the fire detection reference values for each detection signal set to be proportional to the humidity value, A process of selecting fire judgment reference values for each sensing signal corresponding to the humidity value is performed. For example, in consideration of a realistic relation between humidity and fire occurrence, the control unit 30 can select fire judgment reference values for each detection signal having a higher value as the humidity is higher.

In step S330, when the controller 30 determines that any one of the collected data for each sensing signal exceeds the selected fire detection reference value, the process of determining that a fire has occurred is performed.

5, in step S410, the controller 30 weights the sensed signals transmitted by the temperature sensor 110, the flame sensor 130, and the smoke sensor 140, Are generated.

In step S420, the control unit 30 refers to the combined fire determination reference value storage unit in which composite fire determination reference values set to be proportional to the humidity value are stored, and when the humidity reference value stored in the composite fire determination reference value storage unit corresponds to the humidity value included in the humidity detection signal transmitted by the humidity sensor 120 The process of selecting the composite fire judgment reference value is performed.

If it is determined in step S430 that the value obtained by adding up the collected data for each sensing signal exceeds the combined fire determination threshold value, the process of determining that a fire has occurred is performed.

6 is a view illustrating a fire monitoring system according to an embodiment of the present invention.

Referring to FIG. 6, a fire monitoring system according to an embodiment of the present invention includes a combined fire detector 1, a fire detection control module 2, and a fire receiver 3.

Since the complex fire detector 1 has been described in detail in the foregoing, a duplicate description will be omitted.

The fire detection control module (2) is connected to the complex fire detector (1) by a Zigbee communication method and is connected to a remote fire control system by an Ethernet communication method. The manager can input a command for operating the complex fire detector 1 through the fire detection control module 2 or can perform real-time communication with an external fire control system.

The fire receiver 3 is connected to the combined fire detector 1 by an RS-485 communication method. The fire receiver 3 is installed in the vicinity of the fire monitoring area and informs the operator of the occurrence of a fire.

As described above in detail, according to the present invention, there is provided an integrated fire detector capable of improving the reliability and promptness of judging whether a fire occurs or not, and a fire monitoring system including the same.

Also, by analyzing data collected through various sensors installed at the surveillance site according to the judgment criteria set in accordance with the environment of the surveillance site, it is possible to improve the accuracy and reliability of judging whether or not a fire occurs, And a fire monitoring system including the same.

In addition, it is possible to determine whether a fire has occurred on the basis of data collected from sensors, and secondly, an administrator can confirm a fire scene through a related image, thereby improving the accuracy of judgment of whether a fire occurs And a fire detection system including the fire detection system.

FIGS. 7 and 8 are flowcharts of an operation method of a composite fire detector according to another embodiment of the present invention. Please refer to Fig. 1 and Fig.

7 and 8, the controller 30 includes a temperature sensor 110 for sensing a temperature of the sensor unit 10 and transmitting a temperature sensing signal, a flame sensor 130 for sensing a flame and transmitting a flame detection signal And a smoke sensor 140 for detecting a smoke and transmitting a smoke detection signal (S510). Unique identification numbers indicating positions may be given to the respective sensors of the sensor unit 10, but are not limited thereto. Identification information corresponding to the position may be given to the sensor unit 10 itself. This location correspondence identification information can be used to notify the manager of the fire occurrence location by transmitting the location correspondence identification information to the other control module 2 or the fire control system 4 through the communication unit after determining the fire or fire risk to be described later . The control unit 30 may be disposed at a position substantially the same as or spaced apart from the sensor unit 10. The control unit 30 may be located in the control module 2 or the topic control system 4 described in Fig. Each sensor of the sensor unit 10 may be composed of one sensor or a plurality of sensors. For example, the flame sensor 130 may be a combination of an infrared sensor and an ultraviolet sensor, and the flame sensor 130 may include an infrared sensor signal and an ultraviolet sensor signal.

The controller 30 may assign a weight to each of the multiple sensing signals (S520) to generate collected data for each sensing signal. The weights can be set by combining various factors required for fire judgment. Consideration factors of the fire judgment are the environmental condition (humidity, temperature, etc.) of the structure, the ventilation condition of the place where the sensor unit 10 is disposed, the ignition inside the place where the sensor unit 10 is placed, And the like. But is not limited to adjusting the weights according to these considerations. For example, the control unit 30 may adjust a reference value for comparing with collection data or data to be described later.

The collected data may be a value processed by the control unit 30 in various ways to aid in fire judgment. For example, in the case of smoke data according to a smoke signal, the absolute amount of instantaneous smoke (or the relative amount within a certain range), the mean or median during a particular time interval, the pitch value during a particular time interval Value), an intermediate value, a variation amount during a specific time period, and the like.

The control unit 30 can adjust the scale of the weights so that each weight normalizes the collected data for each sense signal. For example, the smoke data according to the smoke sensor and the flame data generated by the flame sensor can be weighted so as to have the same weight in the fire judgment.

The control unit 30 may determine whether there is a confusing factor in determining whether a fire has occurred (S530). If there is a confusion such as a place where temperature or humidity can not be controlled, smoke or arc caused by welding work, corrosive gas or dust, etc., In many cases, it is not a fire. According to the present invention, it is possible to make an accurate fire judgment by appropriately using the sensing signals of the various sensors of the sensor unit 10 by dividing the case where there is the confusion factor and the case without the confusion factor.

If it is determined that there is a confusion factor or is preset, the control unit 30 may change the weight given to the collected data. For example, when it is set to a place where a lot of smoke or dust is generated, the value of the weight for the predetermined smoke signal can be lowered. Each collected data due to the lowered weights prevents false decisions due to confusion factors and can have the same weight in fire judgments. This normalization can help the administrator to easily determine which of the detection signals is significantly higher than the other detection signals during the fire control. The control unit 30 may determine whether or not a fire is caused by judging whether or not a fire has occurred by using only specific sensing signals, and may determine whether a fire is caused by a combination of the signals. It is not limited. For example, when the ambient temperature by the temperature sensor is increased by 40 degrees or more within one second of the object temperature by the flame sensor, the control unit 30 may judge it as a fire.

If there is a confusion factor, the control unit 30 compares the sum of the weighted collected data with the first reference value (S540). If the sum of the collected data exceeds the first reference value, It can be determined that a fire is occurring in the place where the fire has occurred (S550). The control unit 30 can give a fire warning to the administrator through the communication unit 40 or the display device (not shown) that the fire is occurring or the risk is very high. This embodiment can be referred to the embodiment mentioned in Fig.

If it is determined that there is no chaotic factor or is preset, the controller 30 determines whether any one of the collected data exceeds the second reference value (S545). This embodiment can be referred to the embodiment mentioned in Fig. Each collected data is normalized and can be compared with one value (second reference value), so that circuit and program coding can be simplified. Also, it is preferable that the first reference value is substantially equal to the product of the second reference value and the number of sensed signals that are the basis of the fire judgment. That is, the first reference value can be easily derived from the second reference value.

The control unit 30 can sense the humidity of the sensor unit 10 from the humidity sensing signal of the humidity sensor 120 that senses the humidity of the sensor unit 10 and transmits the humidity sensing signal. The control unit 30 can determine whether the location where the sensor unit 10 is disposed is a spontaneous environment according to humidity (S560). Moisture may catalyze ignition depending on the material. This is because proper moisture promotes heat transfer. The case where the humidity acts as a catalyst is referred to as a spontaneous emission environment according to humidity. It is known that spontaneous ignition due to humidity is well occurred in storage warehouses. On the other hand, in the case of wooden buildings, the higher the humidity, the lower the probability of fire occurrence.

In the case of the spontaneous ignition environment according to the humidity, the controller 30 may increase the respective weights given to the multiple sensing signals in a certain period of time in proportion to the humidity (S570). If the humidity exceeds a predetermined third reference value, the controller 30 determines that the fire risk is high and informs the administrator of the fire risk (S590). For example, if it is set to the grain depot, the control unit 30 can issue a fire warning when the humidity is 70% or more and lasts more than 15 days.

If the environment is not a spontaneous environment according to the humidity, the controller 30 may increase the weight of each of the multiple sensing signals in a predetermined time interval in inverse proportion to the humidity (S575). In addition, when the humidity of the specific time interval is less than the predetermined fourth reference value, the controller 30 determines that the fire risk is high and informs the manager of the fire risk (S590). For example, if the area is set to be a wood-based area, architecture, or structure, the control unit 30 can issue a fire warning when the humidity is 30% or less for 7 days.

The present invention can also be embodied as computer-readable codes on a computer-readable recording medium. A computer-readable recording medium includes all kinds of recording apparatuses in which data that can be read by a computer system is stored. Examples of the computer-readable recording medium include a ROM, a RAM, a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like, and may be implemented in the form of a carrier wave (for example, transmission via the Internet) . The computer readable recording medium may also be distributed over a networked computer system so that computer readable code can be stored and executed in a distributed manner. And functional programs, codes, and code segments for implementing the present invention can be easily inferred by programmers skilled in the art to which the present invention pertains.

While the present invention has been described in connection with what is presently considered to be preferred embodiments, it is to be understood that the invention is not limited to the disclosed embodiments. In addition, it is a matter of course that various modifications and variations are possible without departing from the scope of the technical idea of the present invention by anyone having ordinary skill in the art.

1: Combined fire detector 2: Fire detection control module
3: fire receiver 10: sensor unit
20: image capturing unit 30:
40: communication unit 110: temperature sensor
120: Humidity sensor 130: Flame sensor
140: smoke sensor 410: Zigbee communication unit
420: RS-485 communication unit

Claims (10)

A sensor unit including a temperature sensor for sensing a temperature and transmitting a temperature sensing signal, a flame sensor for sensing a flame and transmitting a flame detection signal, and a smoke sensor for detecting a smoke and transmitting a smoke detection signal; And
And a control unit for analyzing the sensing signals transmitted by the sensors constituting the sensor unit to determine whether a fire has occurred,
The control unit generates weight data for sensing signals by the temperature sensor, the flame sensor, and the smoke sensor to generate collected data for each sensing signal,
Wherein the control unit determines that a fire occurs when a sum of the collected data for each sensing signal exceeds a first reference value in the event of a confusion due to fire occurrence judgment. The method according to claim 1,
Wherein the control unit determines that a fire occurs when any one of the collected data for each sensing signal exceeds a preset second reference value in the absence of any confusion due to fire occurrence judgment. The method according to claim 1,
Wherein the control unit adjusts the weight of the sensing signal according to the confusion factor. 3. The method of claim 2,
And normalizes each weight of the sensing signals based on the second reference value. The method according to claim 1,
Wherein the sensor unit further includes a humidity sensor for sensing a humidity and transmitting a humidity sensing signal,
Wherein the control unit is set to a spontaneous ignition environment according to humidity, and when the humidity of the time interval according to the humidity detection signal exceeds a predetermined third reference value, it is determined that the fire is a high risk, And judges that the fire has a high risk when the humidity of the time interval according to the detection signal is lower than the preset fourth reference value. 6. The method of claim 5,
Wherein the control unit adjusts the reference value in proportion to a humidity value according to the humidity sensing signal when the environment is a spontaneous ignition environment according to the humidity. 6. The method of claim 5,
Wherein the control unit adjusts the reference value in inverse proportion to the humidity value according to the humidity sensing signal when the environment is a spontaneous ignition ratio environment according to the humidity. The method according to claim 1,
Sensors constituting the sensor unit are given unique identification numbers,
Further comprising an image capturing unit including cameras for capturing an area where the sensors constituting the sensor unit are installed,
The control unit
Wherein the control unit controls the camera corresponding to the sensor to photograph an area where the sensor is installed when there is a sensor for transmitting a detection signal indicating occurrence of a fire as a result of analysis of the sensing signals transmitted by the sensors. Fire detector. The method according to claim 1,
Further comprising a communication unit for performing communication with the outside under the control of the control unit,
Wherein,
A Zigbee communication unit for communicating with a fire detection control module communicating with a fire control system at a remote location via an Ethernet communication method and a Zigbee communication method; And
And an RS-485 communication unit communicating with the fire receiver in an RS-485 communication manner. 5. The method of claim 4,
Wherein the product of the first reference value and the number of sensed signals by the sensor unit is substantially equal to the second reference value.

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