KR20230045794A - Fire management system for IOT-based fire prevention and spread prevention - Google Patents

Abstract

Disclosed is a system which prevents a fire from occurring or fire spread when a fire occurs by monitoring states of parts in a target space, within a building where electric and electronic parts are integrated, to predict a fire risk and by taking follow-up measures matched according to the prediction results. An IoT-based fire management system for fire prevention and spread prevention, according to the present invention, comprises: an information collecting unit which contains a plurality of sensors (smoke sensor, heat sensor, and temperature sensor) with different sensing targets; a data generating unit which processes information collected from the information collecting unit to generate data necessary for fire risk prediction; a data storage unit which stores reference data; a control unit which, when the fire risk reaches a ceiling level, matches data of an automatic fire extinguisher, intensively spraying extinguishing liquids to the target space, and the data generating unit with the reference data stored in the data storage unit to predict a fire risk, and based on the prediction result, stops power supplying to the parts based on the prediction results, or controls operations of the automatic fire extinguisher; and a communication unit which transmits the fire risk information predicted by the control unit to a management server through an Ethernet communication or transmits the fire risk information to a manager terminal pre-registered through a communication network.

Description

Fire management system for IOT-based fire prevention and spread prevention}

The present invention relates to a fire management system for IOT-based fire prevention and spread prevention, and more specifically, predicts fire risk by monitoring the state of electrical and electronic components in a space where the components are integrated, and matching according to the prediction result. It is about a fire management system for IOT-based fire prevention and spread prevention that prevents fire occurrence or fire spread in the event of a fire by quickly taking the prescribed follow-up measures.

It is known that more than 30% of general fires are electrical fires. Electrical fires like this are often caused by short circuits and overheating inside facilities where various electrical and electronic parts are integrated, such as electrical switchboards, electrical distribution boards, or server racks. .

However, in the case of facilities in which electric and electronic components are integrated, such as electrical switchboards, electrical distribution boards, or server racks, it is difficult to enter in the event of a fire due to space limitations, and the initial fire suppression rate is lowered. Therefore, once a fire occurs, it leads to a large-scale fire. Huge economic loss and human casualties will occur.

On the other hand, since the post-fighting method at most fire sites, that is, the existing response method of extinguishing a fire after a fire has occurred, does not fundamentally prevent a fire from occurring, even if the fire is extinguished quickly with a prompt response at the initial stage of the fire, damage is caused. There is a problem that is bound to happen.

Therefore, before a fire breaks out inside a facility where various electrical and electronic parts are integrated, the fire risk of the facility is determined by monitoring the relevant parts, and appropriate follow-up actions are taken (power off of overheated parts or automatic fire extinguisher operation) according to the judgment result. etc.) is urgently needed to develop a fire management system that can automatically and quickly take action.

Korean Registered Patent No. 10-0791568 (registration date 2007.12.27) Korean Registered Patent No. 10-0809864 (registration date 2008.02.27)

The technical problem to be solved by the present invention is to predict the risk of fire by monitoring the state of the parts in a space where electrical and electronic parts are integrated, and to prevent fire by quickly taking follow-up measures matched according to the predicted result, or It is intended to provide a fire management system for IOT-based fire prevention and spread prevention that can prevent fire spread in the event of a fire.

According to one aspect of the present invention as a means of solving the problem,

Predicting the risk of fire by monitoring the state of the parts in the space to be monitored in the building where electrical and electronic parts are integrated, and taking matched follow-up actions according to the predicted results to prevent fire occurrence or fire spread in case of fire. As a system,

an information collection unit including a smoke sensor for sensing smoke generated from the components, a thermal image sensor for sensing whether the components generate heat, and a temperature sensor for sensing a change in temperature of the space to be monitored;

By processing the information collected from the information collection unit, the rate of change in smoke concentration in the space to be monitored (change in smoke concentration per unit time), the rate of change in the heating state of each part (change in the heating state per unit time), and the rate of change in temperature in the space to be monitored (temperature per unit time) a data generator for generating data about change);

a data storage unit storing reference data for comparison and matching with the data generated by the data generator;

It includes an electric valve opening unit that operates to open a fire extinguishing container filled with fire extinguishing agent at a certain pressure and a valve unit installed at the outlet of the fire extinguishing container. automatic fire extinguisher;

When data is input from the data generator, the fire risk is predicted by matching with the reference data stored in the data storage unit, and the power supply to the parts is controlled or the automatic fire extinguisher operates according to the prediction result. a control unit for controlling; and

A communication unit that transmits fire risk information predicted by the control unit to a management server through a wired or wireless communication network or transmits the fire risk information to a manager terminal registered in advance;

The reference data is simulated in the same simulated environment as the space to be monitored, and the rate of change in smoke concentration in the space to be monitored, the rate of change in heat generation state for each part, Provides a fire management system for IOT-based fire prevention and spread prevention, in which the temperature change rate of the space to be monitored is divided into sections according to the fire risk.

In the fire management system for IOT-based fire prevention and spread prevention according to an embodiment of the present invention, the data storage unit stores reference data divided into normal, dangerous, and limit sections according to fire risk, and the parts during simulation The smoke concentration change rate, heat generation state change rate, and temperature change rate section extracted from the normal operating range are designated and stored as normal sections, and the smoke concentration change rate and heat generation extracted from the range where the part is overheated enough to affect the performance of the part during simulation The state change rate and temperature change rate section is designated and stored as a dangerous section, and during simulation, the smoke concentration change rate extracted right before or after a fire occurs due to overheating of parts, the heating state change rate, and the temperature change rate section can be specified and saved as the limit section. .

In the fire management system for IOT-based fire prevention and spread prevention according to an embodiment of the present invention, the control unit is a fire risk prediction unit that predicts a fire risk by matching data transmitted from the data generation unit with the reference data. And, a power control unit for controlling the operation of the power management unit for cutting off the power supply to each of the components according to the prediction result of the fire risk prediction unit, Controlling the operation of the automatic fire extinguisher according to the prediction result of the fire risk prediction unit It may include a fire extinguisher control unit.

In the fire management system for IOT-based fire prevention and spread prevention according to an embodiment of the present invention, the fire risk prediction unit is normal, dangerous, and limited according to the result of matching the data transmitted from the data generation unit with the reference data. The fire risk can be predicted by dividing into

In the fire management system for IOT-based fire prevention and spread prevention according to an embodiment of the present invention, the fire risk prediction unit, among the reference data stored in the database at the time of the matching, matches or most similar reference data to the data of the data generator belongs. The fire risk level can be predicted by recognizing the fire risk level.

In the fire management system for IOT-based fire prevention and spread prevention according to an embodiment of the present invention, when the fire risk prediction unit predicts that the fire risk is dangerous, the power control unit controls the power management unit to cut off the preset power. Depending on the priority, the power supply can be cut off from the component with the highest priority.

In the fire management system for IOT-based fire prevention and spread prevention according to an embodiment of the present invention, when the fire risk prediction unit predicts the fire risk as a limit, the fire extinguisher control unit supplies power to the electric valve opening unit to The fire extinguisher can be opened.

In the fire management system for IOT-based fire prevention and diffusion prevention according to an embodiment of the present invention, the electric valve opening unit of the automatic fire extinguisher is connected to one side of the valve unit with an adapter and a plug, and a housing having a long hole on one side And, an opening rod installed inside the housing, having an opening pin at one end facing the sealing disk of the valve unit, and having a pin coupling hole formed on the other side corresponding to the position of the long hole, and an opening rod operated according to power supply of the control unit A drive drum coupled to the output shaft of the drive motor and rotating together, and having a spiral lock groove and a linear release groove continuously formed on the surface, one side of which is the lock groove on the surface of the drive drum, and the other side is the long hole and an opening spring installed between the housing and the opening rod to provide a restoring force so that the opening rod receives force in a direction toward the sealing disk.

In the fire management system for IOT-based fire prevention and diffusion prevention according to an embodiment of the present invention, when the guide pin is in the lock groove, the opening rod is located in an open standby position where the opening pin is spaced apart from the sealing disk by a predetermined distance , The moment the guide pin deviates from the lock groove and enters the release groove due to the rotation of the drive drum, the opening rod advances with the restoring force of the opening spring and the opening pin strikes the sealing disk so that the fire extinguishing container is opened. .

According to the above embodiment of the present invention, the fire risk is predicted by monitoring the state of the parts in a space where electrical and electronic parts are integrated, and a preset follow-up action (power cutoff and automatic fire extinguisher operation, etc.) is quickly taken according to the predicted result. Fire can be prevented by taking it carefully, and even if a fire does occur, property and human damage can be minimized by preventing the spread of fire through prompt initial suppression.

1 is a block diagram schematically showing the overall configuration of a fire management system for IOT-based fire prevention and diffusion prevention according to an embodiment of the present invention.
Figure 2 is a block diagram schematically showing the configuration of the control unit of Figure 1;
3 is a graph illustrating a temperature change rate of a space to be monitored, which is sensed by a temperature sensor and generated through a predetermined process in a data generating unit;
Figure 4 is a graph illustrating reference data about the temperature change rate stored in the data storage unit divided into normal, dangerous, and limit intervals according to the degree of fire risk.
5 is a cross-sectional view showing an enlarged main part of an automatic fire extinguisher applied to a fire management system for IOT-based fire prevention and diffusion prevention according to an embodiment of the present invention.
Fig. 6 is a perspective view of a main part of the present invention showing a part in which a driving drum and an opening rod of the electric valve opening unit shown in Fig. 5 are connected;
7 is a development view of the drive drum shown in FIG. 6;
8a and 8b are operating state diagrams of the present invention showing the operating state of an automatic fire extinguisher.

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

In describing the present invention, terms used in the following specification are only used to describe specific embodiments, and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly dictates otherwise.

In addition, the terms "include" or "having" in this specification are intended to designate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, but one or more other It should be understood that the presence or addition of features, numbers, steps, operations, components, parts, or combinations thereof is not precluded.

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

In addition, terms such as "...unit", "...unit", and "...module" described in the specification mean a unit that processes at least one function or operation, which may be implemented by hardware or software or a combination of hardware and software. can

In the description with reference to the accompanying drawings, the same reference numerals will be given to the same components, and overlapping descriptions thereof will be omitted. In addition, in the description of the present invention, if it is determined that a detailed description of a related known technology may unnecessarily obscure the subject matter of the present invention, the detailed description will be omitted.

1 is a block diagram schematically showing the overall configuration of a fire management system for IOT-based fire prevention and spread prevention according to an embodiment of the present invention, with reference to FIG. 1, IOT-based fire prevention according to an embodiment of the present invention And the overall system configuration of the fire management system for diffusion prevention will be looked at.

A fire management system for IOT-based fire prevention and spread prevention according to an embodiment of the present invention is installed in a space to be monitored in a building in which electrical and electronic components are integrated, monitors the state of the components, predicts the fire risk, and predicts the fire risk, and predicts the predicted result. According to this, it is matched in advance and promptly takes set follow-up measures to prevent the occurrence of a fire or prevent the spread of a fire in the event of a fire.

As shown in FIG. 1, the fire management system for IOT-based fire prevention and spread prevention according to an embodiment of the present invention includes an information collection unit 10, a data generation unit 20, and a data storage unit 30. includes In addition, the fire management system for IOT-based fire prevention and spread prevention according to an embodiment of the present invention includes an automatic fire extinguisher 100, a control unit 40, a display unit 50, and a communication unit 60.

The information collection unit 10 includes a plurality of sensors with different sensing targets. The sensors constituting the information collection unit 10 may be a smoke sensor 12, a thermal sensor 14, and a temperature sensor 16, and these sensors are appropriately located in a space to be monitored, such as a switchboard or distribution board, or inside a server rack. It may be installed to monitor parts at a location (eg, an inner surface of a door or an inner side of a case) to generate a corresponding sensing value.

Among the sensors of the information collection unit 10, the thermal sensor 14 is a sensor that detects a long-wave infrared image in a wavelength range of 8 μm to 14 μm, and detects whether parts densely populated in the space to be monitored generate heat. In addition, the smoke sensor 12 may be configured to sense smoke generated from components in a known ion method or an optical refractive index measurement method, and the temperature sensor 16 is known to sense a temperature change in a space to be monitored, and is non-contact. it can be a way

The data generating unit 20 generates predetermined data by processing the information collected from the information collecting unit 10 through a series of pre-input processes. Specifically, from the sensing values input from the smoke sensor 12, the thermal sensor 14, and the temperature sensor 16, the rate of change in the smoke concentration of the space to be monitored, the rate of change in the heating state for each part, and the rate of change in temperature in the space to be monitored generate data about

For reference, the smoke concentration change rate generated by processing the sensed value obtained by the smoke sensor 12 means the change in smoke concentration per unit time, and is generated by processing the sensed value obtained by the thermal image sensor 14 for each part. The exothermic state change rate means the exothermic state change per unit time. The temperature change rate generated from the sensed value of the temperature sensor 16 through a predetermined process means a temperature change per unit time.

The sensed value of the thermal sensor 14 is processed into data necessary for calculating the fire risk through a predetermined process in the data generator 20, but is also provided to a thermal image conversion circuit (not shown) to obtain a temperature after a predetermined process. After being converted into a thermal image designated in a different color according to the color, it can be output in a visually identifiable form through the display unit 50 .

For reference, since the thermal image conversion circuit can use a known thermal image processing engine for thermal infrared image processing, a detailed description thereof will be omitted.

Reference data for comparison and matching with generated data is stored in the data storage unit 30 . The reference data is simulated in the same simulated environment as the space to be monitored, and the rate of change in smoke concentration in the space to be monitored, the rate of change in heat generation condition for each part, and the subject to be monitored The temperature change rate of the space may be divided into sections according to fire risk.

That is, in the data storage unit 30, through simulation of the same simulated environment as the space to be monitored, reference data extracted from the time when the parts are normally operated until a fire occurs due to overheating, specifically, the smoke concentration change rate of the space to be monitored The rate of change of the heating state for each part and the rate of change of the temperature of the space to be monitored may be divided into sections according to the fire risk and stored.

In the data storage unit 30, it is divided into normal, dangerous, and limit sections according to the degree of fire risk, and the reference data (the rate of change in smoke concentration of the space to be monitored, the rate of change in the heating state of each part, and the rate of change in temperature in the space to be monitored) are extracted through simulation. can be stored.

During the simulation, the standard data section (smoke concentration change rate, heating state change rate, temperature change rate section) extracted from the normal operation range of the above parts is designated and saved as a normal section, and during simulation, if the part is overheated enough to affect the performance of the part, The reference data section (smoke concentration change rate, fever state change rate, temperature change rate section) extracted from the range can be designated and saved as a risk section.

In addition, during simulation, the reference data section (smoke concentration change rate, heating state change rate, temperature change rate section) extracted right before or after a fire occurs due to overheating of parts can be specified and stored as a limit section.

The automatic fire extinguisher 100 may include a fire extinguishing container filled with a fire extinguishing agent at a certain pressure and an electric valve opening unit operated to open a valve unit installed at an outlet of the fire extinguishing container. In the automatic fire extinguisher 100, when the fire risk level reaches the limit as a result of predicting the fire risk level, the electric valve opening unit is operated according to the command of the control unit 40 to intensively spray the fire extinguishing liquid toward the space to be monitored.

The configuration of the motorized valve opening unit operated according to the command of the control unit 40 when the risk of fire reaches the limit will be reviewed in detail later.

The control unit 40 predicts the fire risk of the space to be monitored, and controls so that appropriate follow-up processing is performed according to the prediction result. Specifically, when data is input from the data generator 20, the control unit 40 predicts the fire risk by matching with the reference data stored in the data storage unit 30, and supplies power to the components according to the prediction result. Control (斷續) or control the operation of the automatic fire extinguisher (100).

To this end, as shown in the block diagram of FIG. 2, the control unit 40 includes a fire risk prediction unit 410 that predicts the fire risk by matching the data transmitted from the data generation unit 20 with the reference data, a fire risk prediction unit ( 410), the power control unit 420 controls the operation of the power management unit 90 to cut off the power supply to each of the components according to the prediction result, and the automatic fire extinguisher 100 according to the prediction result of the fire risk prediction unit 410. ) May include a fire extinguisher control unit 430 that controls the operation of.

Here, each of the fire risk prediction unit 410, the power control unit 420, and the fire extinguisher control unit 430 is a component that performs a predetermined function, and may be hardware or software, or a combination of hardware and software. For example, the fire risk prediction unit 410, the power control unit 420, and the fire extinguisher control unit 430 may be processors inputting a program in which a series of processing processes are programmed to perform a predetermined process.

The fire risk prediction unit 410 derives a fire risk prediction result by classifying the data transmitted from the data generation unit 20 into normal, dangerous, and marginal categories according to the result of matching the data transmitted from the data storage unit 30 with the reference data stored in the data storage unit 30. do. Specifically, in the matching process with the reference data, among the reference data stored in the database, a fire risk prediction result is derived by recognizing a fire risk section to which the reference data that matches or is most similar to the data of the data generator 20 belongs.

3 is a graph illustrating the temperature change per unit time of the space to be monitored, that is, the temperature change rate, which is sensed by the temperature sensor 16 and generated through a predetermined process in the data generator 20, and FIG. 4 is a data storage unit. (30) is a graph exemplifying the reference data on the temperature change rate stored in normal, dangerous, and limited sections according to the fire risk.

Referring to these drawings, when the temperature change rate of the space to be monitored is sensed from the temperature sensor 16 installed in the space to be monitored and generated through a predetermined process in the data generating unit 20, fire risk prediction The unit 410 may compare and match the reference data (temperature change rate data classified and stored according to fire risk) shown in FIG. 4 to predict the fire risk of the space to be monitored as a 'danger' level.

This is because the temperature change rate of FIG. 3, that is, the slope of the temperature change graph, matches the temperature change rate, that is, the slope of the temperature change graph that is classified and stored as the risk section of FIG. Even if it does not exactly match, if it is within the allowable range for each section set in the standard data storage process, the fire risk of the section can be recognized as the final fire risk.

Although not shown, the smoke concentration change rate of the space to be monitored and the heat generation state change rate for each part measured by the thermal image sensor 14 and generated through a predetermined process in the data generating unit 20 are similarly applied to each in the same manner as the temperature change rate. Correspondingly, the fire risk is predicted through comparison and matching with reference data (smoke concentration change rate and heat generation state change rate) stored in the data storage unit 30 .

The fire risk prediction unit 410 may estimate the final fire risk by averaging prediction results derived through matching with reference data in the above manner. In other words, the smoke concentration change rate, heat generation state change rate, and temperature change rate generated based on the actual sensed values are compared and matched with the corresponding reference data, and the smoke concentration, heat generation state of each part, and fire risk for each temperature item are averaged. This is to predict the final fire risk.

For example, a score (ex. normal = 1 point, dangerous = 2 points, limit = 3 points) is given to each fire risk level classified into normal, dangerous, and limit, and the final fire risk is determined for each section of normal, dangerous, and limit. By setting a range (ex. normal 0 to 1.5, dangerous 1.5 to 2.5, limit 2.5 to 3), the final fire risk is determined by determining which range of the final fire risk range the average of the sum of fire risk scores for each item falls within. Predictable.

In this case, for example, smoke concentration risk, fever state risk, temperature If the fire risk of each item is normal (1 point), dangerous (2 points), and dangerous (2 points), the average fire risk of each item is 1.666, The fire risk prediction unit 410 finally derives a result of predicting the fire risk as 'danger'.

Of course, deriving the final fire risk prediction result by averaging the risks for the three items (smoke concentration change rate, heat generation state change rate for each part, temperature change rate) is only one preferred embodiment for the practice of the invention, The process of deriving the final fire risk prediction result is not limited to the method of using the average value mentioned above.

In the fire management system for IOT-based fire prevention and spread prevention according to an embodiment of the present invention, when the prediction result derived from the fire risk prediction unit 410 as above, that is, the fire risk is predicted as 'danger', the power source The control unit 420 may be configured to control the power management unit 90 to cut off power supply from a component having a higher priority according to a preset power-down priority order.

Power cutoff priority may be assigned according to the frequency of use of each component or the degree of deterioration in performance due to heat. In case of giving priority to power off based on frequency of use, priority is given to parts with low frequency of use, and if priority is given to power off based on the degree of performance deterioration caused by heat, priority can be given to parts that are vulnerable to heat. there is.

In some cases, there may be a method of analyzing the thermal image based on the sensing value of the aforementioned thermal image sensor 14 and giving priority to power off in real time. For example, as a result of thermal image analysis, in a situation where there is a high risk of fire due to overheating of parts as a whole, when one specific part is relatively overheated compared to other parts, power may be cut off first from that part.

These power-off priorities may be preset and stored when the system is built, or may be configured to be arbitrarily changed by a user or operator according to the frequency of use or work environment. Alternatively, as mentioned above, specific information (eg, thermal image information) obtained through real-time monitoring may be analyzed and automatically assigned in real time based on the analysis result.

The fire extinguisher control unit 430 operates the automatic fire extinguisher 100 immediately when the prediction result is input when the fire risk prediction result predicted through the fire risk prediction unit 410 is finally predicted as 'limit'. let it Specifically, at the time when the prediction result is input, power is applied to an electric valve opening unit to be described later to open the fire extinguishing container, thereby reducing the risk of fire or preventing the spread of fire through early suppression of fire.

Meanwhile, the display unit 50 displays a monitoring result for the space to be monitored. The information displayed here is whether or not the part heats up in the space to be monitored detected by the thermal sensor 14, whether or not smoke is generated in the space to be monitored by the smoke sensor 12, and the temperature monitored by the temperature sensor 16. Information on the temperature of the space to be monitored and various warning messages related to fire risk can be included.

And the communication unit 60 serves to support transmission and reception of various information with the management server 70 through Ethernet communication. The communication unit 60 transmits real-time sensing information by the sensors, including the fire risk information predicted by the control unit 40 to the management server 70 through Ethernet communication, or a manager terminal registered in advance through a communication network ( 80) may transmit the fire risk information.

5 is an enlarged cross-sectional view of a main part of an automatic fire extinguisher applied to an IOT-based fire prevention and spread prevention fire management system according to an embodiment of the present invention, and FIG. 6 is a drive of the electric valve opening unit shown in FIG. 5 It is an enlarged perspective view showing a part where the drum and the opening rod are connected in a cylindrical cam structure. And FIG. 7 is an exploded view of the drive drum shown in FIG. 6 .

5 to 7, the automatic fire extinguisher 100 applied to the IOT-based fire prevention and diffusion prevention fire management system according to an embodiment of the present invention is a fire extinguishing container 110 filled with an extinguishing agent at a certain pressure. ) and an electric valve opening unit 130 operated to open the valve unit 120 installed at the outlet of the fire extinguishing container 110, and when the fire risk reaches the limit, it is operated and sprays the fire extinguishing liquid toward the space to be monitored. do.

The fire extinguishing container 110 is filled with a high pressure fire extinguishing agent therein. Specifically, the fire extinguishing agent in the form of liquid or powder is charged at a pressure of about 10 bar, and the upper opening is sealed with the valve unit 120, and the motorized valve opening unit 130 has the final fire risk predicted as 'limit'. In this case, the fire extinguisher control unit 430 is operated by a driving command to open the valve unit 120 so that the internal fire extinguishing agent is ejected toward the extinguishing target unit.

As shown in FIGS. 5 to 7 , the motorized valve opening unit 130 includes a housing 131 connected to one side of the valve unit 120 by an adapter 125 and a plug 140 and having a long hole 132 formed on one side. do. In addition, it is installed inside the housing 131 and has an open pin 135 at one end facing the sealing disk 128 of the valve unit 120, and the other side has a pin coupling hole corresponding to the position of the long hole 132 ( 134) includes an open rod 133 formed thereon.

One end of the guide pin 136 is coupled and fixed to the pin coupling hole 134 through the long hole 132 . In addition, the other end of the guide pin 136 is positioned to be movable along the grooves LH and RH of the surface of the driving drum 139 disposed adjacent to the outer side of the housing 131 . At this time, the groove is a lock groove (LH) formed on the surface of the drive drum 139 in a helical shape with respect to the rotation direction of the drive drum 139, and extending in the longitudinal direction of the drive drum 139 from one end of the lock groove (LH) may be a release home (RH).

The driving drum 139 is coupled to the output shaft of the driving motor 138 operated according to the application of power from the control unit (fire extinguisher control unit 430), and is provided to rotate along with the output shaft when the driving motor 138 operates. Further, between the housing 131 and the opening rod 133, the opening spring in the form of a compression coil spring provides a restoring force so that the opening rod 133 receives force toward the sealing disk 128 constituting the valve unit 120. (137) is installed.

The opening of the fire extinguisher according to the operation of the electric valve opening unit having this configuration will be briefly reviewed in connection with the operation of the overall automatic fire extinguisher.

Referring back to FIG. 5, the valve partitions the outer surface of the slider 126 and the pressure chamber 127 to the restoring force of the spring 129 installed in the pressure chamber 127 at the rear of the slider 126 in the valve closed state. The rear pressure of the slider 126, which is the sum of the pressure of the fire extinguishing agent flowing into the pressure chamber 127 through the gap between the surfaces of the body 121, is slightly greater than or equal to the front pressure formed on the front surface of the slider 126.

Accordingly, the slider 126 is in close contact with the valve seat 123 formed at the boundary between the first chemical passage L1 and the second chemical passage L2 of the valve unit 120 before the automatic fire extinguisher 100 operates. As a result, the passage between the two flow paths L1 and L2 (the passage through which the fire extinguishing agent is discharged when the fire extinguisher is opened) is closed, so that the fire extinguishing agent filled inside the fire extinguishing container 110 is not discharged out of the container.

In this state, when power is supplied to the driving motor 138, the driving drum 139 rotates, and the opening rod 133 moves backward due to the linear motion of the guide pin 136 according to the rotation of the driving drum 139. As soon as it retreats and reaches a certain point, it advances at a high speed by the restoring force of the opening spring 137 acting in the opposite direction and ruptures the sealing disk 128, so that the fire extinguishing container 110 is opened and the fire extinguishing agent is discharged.

The operation of the electric valve opening unit for opening the valve unit will be described in more detail with reference to the operating state diagram of FIG. 8 .

In the state shown in FIG. 5 , when power is supplied to the driving motor 138 as the fire risk is predicted to be 'limited', the driving drum 139 rotates in a predetermined rotational direction and angle. At this time, according to the rotation of the drive drum 139, the guide pin 136 makes a linear motion in the direction of the arrow as shown in FIG. 8A while performing a relative motion along the lock groove LH, and the guide pin 136 The rod 133 is pushed back.

With the retraction of the opening rod 133, the opening spring 137 inside the housing 131 is further compressed to store a greater restoring force, and the continued rotation of the drive drum 139 moves the guide pin 136 to the lock groove ( LH) and enters the linear release groove (RH), the force pushing the opening rod 133 backward disappears, and conversely, the restoring force of the opening spring 137 operates, and the opening rod 133 moves forward at a high speed at the moment. By doing so, the opening pin 135 strikes the sealing disk 128 as shown in b of FIG. 8 .

As a result, the sealing disk 128 is ruptured and the pressure in the pressure chamber 127 is lost, thereby breaking the balance of forces within the valve unit 120. As a result, the slider 126 retreats and the passage between the two flow paths L1 and L2 is opened, so that the high-pressure fire extinguishing agent P in the fire extinguishing container 110 passes through the flow paths L1 and L2 to the valve body 121 ) is sprayed locally along the nozzle connected to the discharge side toward the space to be monitored, thereby extinguishing the fire.

That is, in the automatic fire extinguisher 100 applied to the present invention, when the guide pin 136 is located in the lock groove LH, the opening rod 133 opens the opening pin 135 at a predetermined distance from the sealing disk 128 It is located in the standby position, and the moment the guide pin 136 leaves the lock groove LH and enters the release groove RH due to the rotation of the drive drum 139, it is opened by the restoring force of the opening spring 137 As the rod 133 advances and the opening pin 135 strikes the sealing disk 128, the fire extinguishing container 110 is opened and the medicine is discharged.

In the above detailed description of the present invention, only special embodiments have been described accordingly. However, it should be understood that the present invention is not limited to the particular forms mentioned in the detailed description, but rather it is understood to include all modifications, equivalents and substitutes within the spirit and scope of the present invention as defined by the appended claims. It should be.

10: information collection unit 12: smoke sensor
14: thermal sensor 16: temperature sensor
20: data generation unit 30: data storage unit
40: control unit 50: display unit
60: communication unit 70: management server
80: manager terminal 90: power management unit
100: automatic fire extinguisher 110: fire extinguisher
120: valve unit 121: valve body
123: valve seat 125: adapter
126: slider 127: pressure chamber
128: sealing disk 129: spring
131: housing 132: long hole
133: open rod 134: pin coupling hole
135: open pin 136: guide pin
137: open spring 138: drive motor
139: drive drum 130: valve opening unit
410: fire risk prediction unit 420: power control unit
430: fire extinguisher control unit LH: lock home RH: release home

Claims (9)

Predicting the risk of fire by monitoring the state of the parts in the space to be monitored in the building where electrical and electronic parts are integrated, and taking matched follow-up actions according to the predicted results to prevent fire occurrence or fire spread in case of fire. As a system,
an information collection unit including a smoke sensor for sensing smoke generated from the components, a thermal image sensor for sensing whether the components generate heat, and a temperature sensor for sensing a change in temperature of the space to be monitored;
By processing the information collected from the information collection unit, the rate of change in smoke concentration in the space to be monitored (change in smoke concentration per unit time), the rate of change in the heating state of each part (change in the heating state per unit time), and the rate of change in temperature in the space to be monitored (temperature per unit time) a data generator for generating data about change);
a data storage unit storing reference data for comparison and matching with the data generated by the data generator;
It includes an electric valve opening unit that operates to open a fire extinguishing container filled with fire extinguishing agent at a certain pressure and a valve unit installed at the outlet of the fire extinguishing container. automatic fire extinguisher;
When data is input from the data generator, the fire risk is predicted by matching with the reference data stored in the data storage unit, and the power supply to the parts is controlled or the automatic fire extinguisher operates according to the prediction result. a control unit for controlling; and
A communication unit that transmits fire risk information predicted by the control unit to a management server through a wired or wireless communication network or transmits the fire risk information to a manager terminal registered in advance;
The reference data is simulated in the same simulated environment as the space to be monitored, and the rate of change in smoke concentration in the space to be monitored, the rate of change in heat generation state for each part, A fire management system for IOT-based fire prevention and spread prevention, which classifies the temperature change rate of the space to be monitored by section according to the fire risk.
According to claim 1,
The data storage unit stores the reference data divided into normal, dangerous, and limit sections according to the degree of fire risk,
During the simulation, the smoke concentration change rate, the heating state change rate, and the temperature change rate section extracted from the normal operating range of the parts are stored as a normal section,
During simulation, the smoke concentration change rate, heating state change rate, and temperature change rate section extracted from the range where the part is overheated enough to affect the performance of the part is saved as a dangerous section,
An IOT-based fire management system for fire prevention and spread prevention that stores the smoke concentration change rate, fever state change rate, and temperature change rate section extracted immediately before or after a fire due to overheating of parts during simulation as a limit section.
According to claim 2,
The control unit,
A fire risk prediction unit for predicting a fire risk by matching the data transmitted from the data generation unit with the reference data;
A power control unit for controlling an operation of a power management unit for cutting off power supply to each of the components according to a prediction result of the fire risk prediction unit;
A fire management system for IOT-based fire prevention and spread prevention including a fire extinguisher control unit for controlling the operation of the automatic fire extinguisher according to the prediction result of the fire risk prediction unit.
According to claim 3,
The fire risk prediction unit,
A fire management system for IOT-based fire prevention and spread prevention that predicts the fire risk by classifying the data transmitted from the data generator into normal, dangerous, and limit according to the matching result with the reference data.
According to claim 4,
The fire risk prediction unit,
Fire management system for IOT-based fire prevention and spread prevention that predicts the fire risk by recognizing the fire risk section to which the reference data that matches or most similar to the data of the data generator among the reference data stored in the database at the time of matching.
According to claim 4,
If the fire risk is predicted as a risk in the fire risk prediction unit,
The power control unit controls the power management unit to cut off power supply from components with higher priority according to a preset power cutoff priority. Fire management system for preventing and preventing fire based on IOT.
According to claim 4,
If the fire risk is predicted as the limit in the fire risk prediction unit,
The fire extinguisher control unit supplies power to the electric valve opening unit to open the fire extinguishing container. A fire management system for preventing and preventing fire based on IOT.
According to claim 1 or 7,
The electric valve opening unit of the automatic fire extinguisher,
A housing connected to one side of the valve unit with an adapter and a plug and having a long hole formed on one side;
An opening rod installed inside the housing, having an opening pin at one end facing the sealing disk of the valve unit, and having a pin coupling hole formed on the other side corresponding to the position of the long hole;
A driving drum coupled to an output shaft of a driving motor operated in response to power supply of the control unit to rotate together and having a spiral lock groove and a linear release groove continuously formed on the surface;
A guide pin having one side located in the lock groove on the surface of the driving drum and the other side coupled to the pin coupling hole through the long hole;
A fire management system for IOT-based fire prevention and spread prevention including an opening spring installed between the housing and the opening rod to provide a restoring force so that the opening rod receives force in a direction toward the sealing disk.
According to claim 8,
When the guide pin is in the lock groove, the opening rod is located in an open standby position in which the opening pin is separated from the sealing disk by a predetermined distance;
The moment the guide pin deviates from the lock groove and enters the release groove due to the rotation of the driving drum, the restoring force of the opening spring advances the opening rod and the opening pin strikes the sealing disk to open the fire extinguishing container IOT-based fire prevention and Fire management system to prevent spread.

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