Automatic fire extingushing system using complex sensor device and operating method therefor

Abstract

A method of operation for an automatic fire extinguishing system using a composite monitoring device attached to the interior of a battery rack according to the present embodiment comprises: acquiring composite sensing data regarding the interior of the battery rack from the composite monitoring device; determining whether an abnormal state is detected inside the battery rack based on the composite sensing data; and generating a trigger signal to activate a rolling shutter device provided on the upper part of the battery rack when it is determined that an abnormal state is detected.

Description

Technology Field

[0001] This specification relates to an automatic fire extinguishing system using a composite monitoring device and a method of operation for the same. More specifically, it relates to an automatic fire extinguishing system including a rolling shutter device capable of preventing the spread of a fire occurring in a battery rack (hereinafter 'BR') using a composite monitoring device, and a method of operation for the same. Background Technology

[0002] Today, base stations operated by telecommunications carriers are equipped with multiple battery racks (BRs) for emergency power supply. These battery racks are one of the key facilities ensuring the stability and continuity of communication services, and are designed to maintain essential power for a certain period even in situations where the base station's power supply is interrupted.

[0003] However, most base stations currently do not have a dedicated fire suppression system specifically designed for battery racks. Consequently, if a fire occurs inside a battery rack, it may not be possible to suppress the fire within a short period of time or effectively control the thermal runaway of the battery, which could lead to serious secondary damage to surrounding communication equipment or other infrastructure.

[0004] Meanwhile, existing battery fire extinguishing systems have various technical limitations.

[0005] First, it is difficult to completely extinguish battery fires with special combustion characteristics, such as those involving lithium-ion batteries, using conventional fire extinguishing systems, so there is a risk of residual flames or re-ignition.

[0006] Second, in the case of currently used systems, rapid suppression is difficult because physical entry is challenging and entry itself entails danger. Additionally, there is a problem where the physical means or extinguishing agents used during the firefighting process may cause water damage or other harm to communication equipment and electronic facilities.

[0007] Third, existing systems have limitations in that the installation configuration itself is complex, and installation is difficult within the limited space of a base station depending on the size or operation method of essential components, resulting in significantly high installation and maintenance costs.

[0008] Considering these issues, there is an urgent need to develop a dedicated fire suppression system that can rapidly and effectively extinguish fires from the initial stages even if they occur within battery racks, prevent chain damage caused by thermal runaway, and further minimize damage to communication equipment and surrounding infrastructure. The problem to be solved

[0009] The purpose of the present specification is to provide an automatic fire extinguishing system and a method of operation for the same, which is implemented such that a fireproof cloth pre-rolled in the rolling shutter device is unfolded in a predetermined direction of the battery rack (e.g., from top to bottom; Z direction) by driving a rolling shutter device linked with a composite monitoring device installed inside the battery rack (BR) to suppress the spread of a fire that occurs in the battery rack (BR). means of solving the problem

[0010] A method of operation for an automatic fire extinguishing system using a composite monitoring device attached to the interior of a battery rack according to the present embodiment comprises: a step of acquiring composite sensing data regarding the interior of the battery rack from the composite monitoring device; a step of determining whether an abnormal state is detected inside the battery rack based on the composite sensing data; and a step of generating a trigger signal to activate a rolling shutter device provided on the upper part of the battery rack when it is determined that an abnormal state is detected.

[0011] According to the present embodiment, the composite sensing data is characterized by including carbon dioxide (CO₂) concentration information, carbon monoxide (CO) concentration information, temperature information, and humidity information.

[0012] According to the present embodiment, when a trigger signal is received by the rolling shutter device, the fireproof cloth pre-rolled in the rolling shutter device is implemented to unfold along a predetermined direction to seal the only open side of the battery rack.

[0013] According to the present embodiment, a plurality of battery packs stacked on a battery rack are attached and detached through a single open side, and the remaining sides of the battery rack, excluding the one side, are sealed.

[0014] According to the present embodiment, the method further includes a step of determining whether to verify the integrity of composite sensing data when it is determined that an abnormal state is detected, wherein the trigger signal is generated only when it is determined that the integrity of the composite sensing data is verified.

[0015] An automatic fire extinguishing system using a composite monitoring device according to the present embodiment includes a composite monitoring device attached to the interior of a battery rack; and a rolling shutter device provided on the upper part of the battery rack and linked with the composite monitoring device, wherein the composite monitoring device includes a composite sensor module for acquiring composite sensing data regarding the interior of the battery rack; a sensor integrity judgment module for verifying the integrity of the composite sensing data; and a control module for determining whether an abnormal condition occurs inside the battery rack based on the composite sensing data and generating a trigger signal to activate the rolling shutter device according to the determination, wherein when the trigger signal is received by the rolling shutter device, a fireproof cloth pre-rolled in the rolling shutter device is unfolded along a predetermined direction to seal the only open side of the battery rack.

[0016] According to the present embodiment, the composite monitoring device is characterized by further including a communication module that transmits a judgment result related to whether an abnormal state has occurred to an external management server.

[0017] According to the present embodiment, the control module is characterized by being equipped with a pre-trained artificial intelligence model that calculates the probability of an abnormal state occurring inside the battery rack using composite sensing data.

[0018] According to the present embodiment, the artificial intelligence model is characterized by being implemented using at least one of an artificial neural network, a support vector machine, or a random forest.

[0019] According to the present embodiment, the system is characterized by being implemented to determine that an abnormal condition has occurred inside the battery rack when the calculated probability is greater than or equal to a predetermined threshold value.

[0020] According to the present embodiment, it further includes one or more fire extinguishers in the form of solid aerosols that are implemented to spray an aerosol into the battery rack in conjunction with the composite monitoring device. Effects of the invention

[0021] According to the means of solving the problem, an automatic fire extinguishing system and a method of operation for sealing the opening (F) of a battery rack can be provided, in which a fireproof cloth pre-rolled in the rolling shutter device is unfolded along a predetermined direction (e.g., from top to bottom) by driving a rolling shutter device linked with a composite monitoring device installed inside the battery rack (BR).

[0022] In addition, according to the means of solving the problem, a fireproof cloth pre-rolled in a rolling shutter device is unfolded along a predetermined direction of the battery rack (e.g., from top to bottom; Z direction) before a fire extinguisher in the form of a solid aerosol is sprayed at a specific location of the battery rack (BR), thereby first sealing the opening (F) of the battery rack (BR) before the aerosol is sprayed, so that the fire extinguishing water sprayed to suppress the fire in the conventional way can be prevented from causing secondary damage to other battery racks in the vicinity. Brief explanation of the drawing

[0023] FIG. 1 is a perspective view showing an exemplary external structure of an automatic fire extinguishing system using a composite monitoring device according to the present embodiment. FIG. 2 is a perspective view showing an exemplary internal structure of an automatic fire extinguishing system using a composite monitoring device according to the present embodiment. FIG. 3 shows the structure of a rolling shutter device using a fireproof cloth of an automatic fire extinguishing system using a composite monitoring device according to the present embodiment. FIG. 4 shows a block diagram of a composite monitoring device of an automatic fire extinguishing system according to the present embodiment. FIG. 5 shows a block diagram of a composite monitoring device of an automatic fire extinguishing system according to the present embodiment. FIG. 6 is a flowchart illustrating the operation method of an automatic fire extinguishing system using a composite monitoring device according to the present embodiment. FIG. 7 is a flowchart illustrating the operation method of an automatic fire extinguishing system using a composite monitoring device according to another embodiment of the present invention. Specific details for implementing the invention

[0024] The advantages and features of the present invention and the methods for achieving them will become clear by referring to the embodiments described below in detail together with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below but may be implemented in various different forms. These embodiments are provided merely to ensure that the disclosure of the present invention is complete and to fully inform those skilled in the art of the scope of the present invention, and the present invention is defined only by the scope of the claims.

[0025] The terms used in this specification are for describing embodiments and are not intended to limit the invention. In this specification, the singular form includes the plural form unless specifically stated otherwise in the text. The terms "comprises" and / or "comprising" used in this specification do not exclude the presence or addition of one or more other components in addition to the components mentioned. Throughout the specification, the same reference numerals refer to the same components, and "and / or" includes each of the mentioned components and all combinations of one or more. Although terms such as "first," "second," etc., are used to describe various components, these components are not limited by these terms. These terms are used merely to distinguish one component from another. Therefore, the first component mentioned below may be the second component within the technical scope of the invention.

[0026] Unless otherwise defined, all terms used herein (including technical and scientific terms) may be used in a meaning commonly understood by those skilled in the art to which the present invention pertains. Additionally, terms defined in commonly used dictionaries are not to be interpreted ideally or excessively unless explicitly and specifically defined otherwise.

[0027] With reference to the drawings below, an automatic fire extinguishing system using a composite monitoring device according to the present embodiment is described.

[0028] Meanwhile, although the present specification describes an automatic fire extinguishing system using a composite monitoring device as being applied to a battery rack (BR), it will be understood that the present specification is not limited thereto. In other words, the present specification can be widely applied to the interior of electrical facilities including battery racks (BR).

[0029] FIG. 1 is a perspective view showing an exemplary external structure of an automatic fire extinguishing system using a composite monitoring device according to the present embodiment.

[0030] Referring to FIG. 1A, the automatic fire extinguishing system (100) according to the present embodiment may include a rolling shutter (hereinafter 'RS') device (110) and a composite monitoring device (120) attached inside a battery rack ('BR').

[0031] For example, the battery rack (BR) can be implemented in a structure in which multiple battery packs (not shown) are stacked in a third direction (Z) that is vertical to the floor.

[0032] For example, a plurality of battery packs (not shown) can be detached or attached along a first direction (X) through an opening (F), which is the only open side of the battery rack (BR). In this case, the remaining sides of the battery rack (BR), excluding the opening (F), can be designed as a sealed structure.

[0033] The rolling shutter (RS) device (110) of the automatic fire extinguishing system (100) illustrated in FIG. 1A can be understood as being in a deactivated state.

[0034] Referring to FIG. 1B, the rolling shutter (RS) device (110) of the automatic fire extinguishing system (100) according to the present embodiment can be understood as being in an activated state.

[0035] According to the present embodiment, when it is determined that an abnormal condition is detected inside the battery rack (BR) based on composite sensing data generated by a composite monitoring device (120) attached to a specific surface inside the battery rack (hereinafter 'BR'), a rolling shutter (RS) device (110) can be activated.

[0036] That is, the fireproof cloth wound on the rolling shutter (RS) device (110) can be implemented to seal the opening (F) of the battery rack (BR) by unfolding along a predetermined direction (e.g., from top to bottom; Z direction). Accordingly, since all sides of the battery rack (BR) are sealed, the spread of a fire generated inside the battery rack (BR) to the surrounding area of ​​the installation site (e.g., data center) can be suppressed for a certain period of time.

[0037] Meanwhile, when a fire extinguisher (not shown) in the form of a solid aerosol is provided in advance at a specific location of the battery rack (BR), a situation can be assumed in which the fire extinguisher (not shown) is sprayed due to a fire inside the battery rack (BR). In this case, a fireproof cloth pre-rolled in the rolling shutter device is unfolded along a predetermined direction (e.g., from top to bottom; Z direction) to seal the opening (F) of the battery rack (BR), thereby preventing secondary damage in which the fire extinguishing water sprayed to suppress the fire inside the battery rack (BR) conventionally floods other battery racks (not shown) in the vicinity.

[0038] FIG. 2 is a perspective view showing an exemplary internal structure of an automatic fire extinguishing system using a composite monitoring device according to the present embodiment.

[0039] Referring to FIGS. 1 and FIGS. 2, some of the internal structure of an automatic fire extinguishing system using the composite monitoring device of FIGS. 2 can be understood as an exemplary drawing in which the side cover and rear cover of a battery rack (BR) to which the composite monitoring device (120) is attached have been removed.

[0040] Referring to FIG. 2, a predetermined number of battery packs (B_p) can be stacked in the battery rack (BR) starting from the lower mounting bracket (221). Additionally, a composite monitoring device (120) can be fixed to one side of the battery rack (BR) inside the battery rack (BR).

[0041] The remainder of the internal structure of the automatic fire extinguishing system using the composite monitoring device of FIG. 2 can be understood as an exemplary drawing in which the cover of the rolling shutter (RS) device (110) placed on the upper part of the battery rack (BR) in FIG. 1 is removed.

[0042] Here, the composite monitoring device (120) can be installed in the air circulation path (or space immediately adjacent to the battery cell) above the battery rack (BR) so as to quickly detect gas leaks caused by fire.

[0043] For example, the solid aerosol type fire extinguisher (FE) mentioned in this specification may be provided at a predetermined location on the upper frame (F_u) along a third direction (Z) so that the aerosol can be sprayed toward the battery pack (B_p) when an abnormal condition is detected.

[0044] In this specification, a solid aerosol type fire extinguisher (FE) is illustrated as being provided as a pair on an upper frame (F_u), but it will be understood that this specification is not limited thereto.

[0045] FIG. 3 shows the structure of a rolling shutter device using a fireproof cloth of an automatic fire extinguishing system using a composite monitoring device according to the present embodiment.

[0046] Referring to FIGS. 1 to 3, the internal structure of a rolling shutter (RS) device (110) may include a rolling shaft (212, 312) that wraps a fireproof cloth (20, 30), a bearing holder (211, 311) for fixing the rolling shaft (212, 312), a gearbox motor (215, 315) that is activated by a trigger signal transmitted from a composite monitoring device (120), a timing belt (213, 313) and a timing pulley (214, 314) for transmitting power generated by the gearbox motor (215, 315) to the rolling shaft (212, 312), a shaft coupling (215, 315), and a shaft clamp (216, 316).

[0047] Additionally, the internal structure of the rolling shutter (RS) device (110) may include a manual lever wheel (217, 317) and a solenoid (218, 318) for manually unfolding the fireproof cloth (20, 30). In this case, the components included in the internal structure of the rolling shutter (RS) device (110) may be implemented on an upper frame (F_u).

[0048] Meanwhile, since the rolling shaft (212, 312) rotates at a predetermined speed by power generated by the gearbox motor (215, 315) activated by the trigger signal, the fireproof cloth (20, 30) wound on the rolling shaft (212, 312) can be implemented to unfold in a predetermined direction (e.g., vertical direction; Z direction) according to the fireproof cloth clamp assembly (219, 319) and the front rolling guide (G_r).

[0049] FIG. 4 shows a block diagram of a composite monitoring device of an automatic fire extinguishing system according to the present embodiment.

[0050] Referring to FIGS. 1 to 4, a composite monitoring device (400) according to the present embodiment may include a composite sensor module (410), a control module (420), a sensor integrity determination module (430), and a communication module (440).

[0051] For example, the composite sensor module (410) may include a plurality of sensors for detecting the condition inside the battery rack (BR) in real time.

[0052] Here, multiple sensors may refer to various sensors for detecting signs of thermal runaway, such as temperature sensors, smoke sensors, and gas sensors (e.g., CO, CO₂, H₂).

[0053] For example, the composite sensor module (410) may be implemented to integrately analyze composite sensing data obtained from a plurality of sensors, or to transmit composite sensing data to the control module (420).

[0054] For example, the control module (420) can determine whether a fire has occurred in the battery rack (BR) based on composite sensing data received from the composite sensor module (410).

[0055] Additionally, the control module (420) can perform control commands such as operating the rolling shutter (RS) device (110) or operating a solid aerosol fire extinguisher (e.g., FE in FIG. 2 and FIG. 3) provided at a specific location in the battery rack (BR) according to a preset condition.

[0056] Additionally, the control module (420) may be implemented to provide a linkage function with another system or an external control server (not shown) depending on the situation.

[0057] For example, the sensor integrity determination module (430) can determine whether a plurality of sensors included in the composite sensor module (410) are operating normally.

[0058] For example, when a phenomenon such as a malfunction or signal interruption of at least one of the multiple sensors is detected by the sensor integrity determination module (430), the sensor integrity determination module (430) may be implemented to transmit a sensor alarm signal to the control module (420).

[0059] Accordingly, it will be understood that the reliability of the composite sensor module (410) can be ensured and false alarms or undetected situations can be minimized.

[0060] The communication module (440) can be responsible for transmitting and receiving data between the control module (420) and an external control server (or user terminal).

[0061] In this case, the communication module (440) can transmit status information inside the battery rack (BR), fire occurrence notifications, the status of the composite sensor module (410), and control commands, etc., to an external control server (not shown) or a user terminal (not shown) based on a predetermined wired / wireless communication protocol.

[0062] For reference, the communication module (440) can provide bidirectional communication functions for remote control or monitoring.

[0063] FIG. 5 shows a block diagram of a composite monitoring device of an automatic fire extinguishing system according to the present embodiment.

[0064] Referring to FIGS. 4 and FIGS. 5, the composite sensor module (500) according to the present embodiment may correspond to the composite sensor module (410) of FIG. 4.

[0065] The composite sensor module (500) according to the present embodiment may include a CO₂ detection sensor (510), a carbon monoxide detection sensor (520), a temperature sensor (530), and a humidity sensor (540).

[0066] For example, the CO₂ detection sensor (510) may be a sensor that measures the concentration of carbon dioxide (ppm) emitted when ignition or thermal runaway occurs inside the battery rack (BR).

[0067] For example, since the CO₂ concentration increases rapidly in the early stages of a fire, the CO₂ detection sensor (510) can be usefully utilized for early detection of a fire occurring inside the battery rack (BR).

[0068] For example, the carbon monoxide detection sensor (520) may be a sensor that measures the concentration (ppm) of carbon monoxide (CO) inside the battery rack (BR).

[0069] For example, carbon monoxide (CO) is a typical byproduct of incomplete combustion and is generated in large quantities, particularly during the early stages of lithium-ion battery fires or thermal runaway.

[0070] In particular, since carbon monoxide (CO) is generated by degradation or decomposition reactions within the battery during the early or precursor stages of a fire, before the flame becomes visible, a rapid increase in CO concentration signifies a dangerous condition such as a pre-thermal runaway or an internal short circuit.

[0071] For example, the temperature sensor (530) can measure the real-time temperature inside the battery rack (BR). For example, the possibility of an abnormal sign or thermal runaway occurring inside the battery rack (BR) can be determined based on whether the temperature measured by the temperature sensor (530) is above a certain temperature.

[0072] For example, the humidity sensor (540) can measure the humidity inside the battery rack (BR) to detect secondary risk factors such as corrosion or electrical short circuits caused by condensation or moisture accumulation in advance.

[0073] In this specification, multiple sensing data individually obtained from multiple sensors (510 to 540) of a composite sensor module (500) may be referred to as composite sensing data.

[0074] For example, the plurality of sensing data may include carbon dioxide (CO₂) concentration information measured by a CO₂ detection sensor (510), carbon monoxide (CO) concentration information measured by a carbon monoxide detection sensor (520), temperature information measured by a temperature sensor (530), and humidity information measured by a humidity sensor (540).

[0075] A control module according to the present embodiment (e.g., 420 in FIG. 4) can be implemented to determine whether an abnormal condition (i.e., fire) has occurred inside the battery rack (BR) based on composite sensing data using a preset threshold.

[0076] For example, the control module (e.g., 420 in FIG. 4) can determine an abnormal condition (i.e., fire) inside the battery rack (BR) according to the following mathematical formula 1.

[0077]

[0078] Here, C_CO₂(t) of Equation 1 is associated with the CO₂ concentration (ppm) at time point (t) measured by the CO₂ detection sensor (510), C_CO(t) of Equation 1 is associated with the CO concentration (ppm) at time point (t) measured by the carbon monoxide detection sensor (520), T_temp(t) of Equation 1 is associated with the temperature (°C) at time point (t) measured by the temperature sensor (530), and dH_humid / dt of Equation 1 can be associated with the rate of change of humidity over time (% / min) measured by the humidity sensor (540).

[0079] For example, when an abnormal state is detected (FireDetected = True) because each item among multiple sensing data satisfies a preset threshold value as shown in Equation 1 below, the control module (420) can be implemented to perform a corresponding action for the abnormal state (e.g., generating a trigger signal, operating a fire extinguisher) inside the battery rack (BR).

[0080] Here, the trigger signal generated by the control module (420) can be transmitted through a pre-established internal wired network (or wireless network) between the rolling shutter (RS) device (110) and the composite monitoring device (120).

[0081] Additionally, the trigger signal generated by the control module (420) can be transmitted through a pre-established internal wired network (or wireless network) between the solid aerosol-type fire extinguisher (FE) and the composite monitoring device (120).

[0082] For example, a control module (e.g., 420 in FIG. 4) can activate a solid aerosol fire extinguisher at a specific location of the battery rack (BR) or generate an alarm based on the result of a judgment according to Equation 1.

[0083] As another example, the control module (e.g., 420 in FIG. 4) can transmit the judgment result according to Equation 1 to an external control server (not shown) through a communication module (e.g., 440 in FIG. 4).

[0084] Meanwhile, the control module (420) according to the other embodiment may be equipped with a machine learning or deep learning-based artificial intelligence model that has been trained in advance to determine whether an abnormal condition (e.g., fire) has occurred inside the battery rack (BR), rather than a simple threshold-based judgment logic such as Equation 1.

[0085] For example, a control module (420) equipped with an artificial intelligence model can use composite sensing data input in real time from a CO₂ detection sensor (510), a carbon monoxide detection sensor (520), a temperature sensor (530), and a humidity sensor (540) as an input vector (X(t)) as in Equation 2 below, and calculate the probability of an abnormal state occurring at a corresponding time point (t) (P_fire(t)) as in Equation 3 below.

[0086]

[0087] Here, C_CO₂(t) in Equation 2 is associated with the CO₂ concentration (ppm) at time (t) measured by the CO₂ detection sensor (510), C_CO(t) in Equation 2 is associated with the carbon monoxide concentration (ppm) at time (t) measured by the carbon monoxide detection sensor (520), T_temp(t) in Equation 2 is associated with the temperature (°C) at time (t) measured by the temperature sensor (530), and dH_humid / dt in Equation 2 can be associated with the rate of change of humidity over time (% / min) measured by the humidity sensor (540).

[0088]

[0089] Here, X(t) in Equation 3 is associated with an input vector at time point (t), f_AI in Equation 3 is associated with an artificial neural network, SVM (Support Vector Machine), Random Forest, or other machine learning model, and P_fire(t) can be associated with a probability of fire occurring at time point (t) (e.g., a real value from 0 to 1).

[0090] In addition, the control module (420) equipped with an artificial intelligence model can be implemented to determine that an abnormal state has occurred inside the battery rack (BR) and to perform a corresponding action (e.g., generating a trigger signal) when the probability of an abnormal state occurring (P_fire(t)) is greater than or equal to a preset reference value (θ_fire) as shown in Equation 4 below.

[0091] Here, the trigger signal generated by the control module (420) can be transmitted through a pre-established internal wired network (or wireless network) between the rolling shutter (RS) device (110) and the composite monitoring device (120).

[0092]

[0093] The artificial intelligence model for the control module (420) according to this other embodiment is not only pre-trained according to a supervised learning method with correct labels based on a learning dataset including normal state and fire occurrence scenarios inside the battery rack (BR), but the weights of the model can also be optimized based on a loss function such as cross-entropy or MSE (mean squared error).

[0094] Here, the training dataset may include CO₂ concentration (ppm) information, CO concentration (%) information, temperature (°C) information, humidity (%) information, humidity change rate (dH / dt) information, and fire occurrence label (0: normal, 1: fire).

[0095] In addition, the control module (420) according to the present specification may be implemented to simultaneously perform the threshold-based judgment logic of the aforementioned mathematical formula 1 and the artificial intelligence model-based judgment logic of mathematical formula 3, and may be implemented to determine that an abnormal state (i.e., fire) has occurred inside the battery rack (BR) only when both judgment results satisfy the conditions for the occurrence of an abnormal state (i.e., fire) inside the battery rack (BR).

[0096] FIG. 6 is a flowchart illustrating the operation method of an automatic fire extinguishing system using a composite monitoring device according to the present embodiment.

[0097] Referring to FIGS. 1 to 6, in step S610, a composite monitoring device (e.g., 110 of FIG. 1) of an automatic fire extinguishing system (e.g., 100 of FIG. 1) according to the present embodiment can acquire composite sensing data regarding the interior of a battery rack (e.g., BR of FIG. 1).

[0098] For example, the composite sensing data may include carbon dioxide (CO₂) concentration information measured by a CO₂ detection sensor (510), carbon monoxide (CO) concentration information measured by a carbon monoxide detection sensor (520), temperature information measured by a temperature sensor (530), and humidity information measured by a humidity sensor (540).

[0099] In step S620, the composite monitoring device (e.g., 110 of FIG. 1) of the automatic fire extinguishing system (e.g., 100 of FIG. 1) according to the present embodiment can determine whether an abnormal condition (e.g., fire) is detected inside the battery rack (e.g., BR of FIG. 1) based on composite sensing data.

[0100] In step S630, when the composite monitoring device (e.g., 110 in FIG. 1) of the automatic fire extinguishing system (e.g., 100 in FIG. 1) according to the present embodiment determines that an abnormal condition (e.g., fire) is detected, the composite monitoring device (e.g., 110 in FIG. 1) can generate a trigger signal to activate a rolling shutter device (e.g., 120 in FIG. 1) provided on the upper part of a battery rack (e.g., BR in FIG. 1).

[0101] For example, when a trigger signal is received by a rolling shutter device (e.g., 120 in FIG. 1), the rolling shutter device (e.g., 120 in FIG. 1) may be implemented to unfold a fireproof cloth (e.g., 10 in FIG. 1) that is pre-rolled on the rolling shutter device (e.g., BR in FIG. 1) along a predetermined direction (e.g., Z direction in FIG. 1) to seal the opening (F) of the battery rack (e.g., BR in FIG. 1).

[0102] As another example, when a trigger signal is received by one or more fire extinguishers in the form of a solid aerosol (e.g., FE in FIGS. 2 and 3), the one or more fire extinguishers (e.g., FE in FIGS. 2 and 3) may be implemented to operate automatically by the trigger signal, which is an electrical signal. In this case, a stable solid compound inside the fire extinguisher may burn to generate an aerosol that is a extinguishing component of the fire. Here, the radicals of the aerosol may react with O, H, and OH radicals associated with the fire to suppress the fire.

[0103] FIG. 7 is a flowchart illustrating the operation method of an automatic fire extinguishing system using a composite monitoring device according to another embodiment of the present invention.

[0104] Referring to FIGS. 1 to 7, steps S710 and S720 can be understood through the description of steps S610 and S620 of FIG. 6 described above, and step S740 can be understood through the description of step S630 of FIG. 6 described above.

[0105] Step S730 is based on the premise that the composite monitoring device (e.g., 110 in FIG. 1) of the automatic fire extinguishing system (e.g., 100 in FIG. 1) according to this other embodiment determines that an abnormal condition is detected inside the battery rack (e.g., BR in FIG. 1) while going through Step S720.

[0106] In step S730, the composite monitoring device (e.g., 110 in FIG. 1) of the automatic fire extinguishing system (e.g., 100 in FIG. 1) according to the other embodiment of the present invention can determine whether the composite sensor module (e.g., 410 in FIG. 4) that generates composite sensing data is operating normally.

[0107] For example, a composite monitoring device (e.g., 110 in FIG. 1) of an automatic fire extinguishing system (e.g., 100 in FIG. 1) according to another embodiment of the present invention may be implemented to determine whether a sensor alarm signal is received from the aforementioned sensor integrity determination module (e.g., 430 in FIG. 4).

[0108] For example, when a phenomenon such as a malfunction or signal interruption is detected in at least one of the multiple sensors (e.g., 510 to 540 in FIG. 5) included in the composite sensor module (e.g., 410 in FIG. 4), the sensor integrity determination module (e.g., 430 in FIG. 4) can transmit the sensor alarm signal to the control module (e.g., 420 in FIG. 4).

[0109] In other words, the control module (e.g., 420 in FIG. 4) of the composite monitoring device (e.g., 110 in FIG. 1) can generate a trigger signal only when a sensor alarm signal is not received from the sensor integrity determination module (e.g., 430 in FIG. 4).

[0110] Accordingly, it will be understood that according to this other embodiment, the probability of malfunction of the rolling shutter device (e.g., 120 in FIG. 1) of the automatic fire extinguishing system (e.g., 100 in FIG. 1) can be reduced.

[0111] FIG. 8 is a block diagram illustrating a computing environment including a computing device suitable for use in an exemplary embodiment.

[0112] Referring to FIGS. 1 through 8, in the illustrated embodiments, each component may have different functions and capabilities in addition to those described below, and may include additional components in addition to those not described below.

[0113] The illustrated computing environment (10) includes a computing device (12). In one embodiment, the computing device (12) may correspond to a composite monitoring device (e.g., 110 of FIG. 1) for an automatic fire extinguishing system (e.g., 100 of FIG. 1) according to the present embodiment mentioned herein.

[0114] The computing device (12) includes at least one processor (14), a computer-readable storage medium (16), and a communication bus (18). The processor (14) can enable the computing device (12) to operate according to the exemplary embodiment mentioned above.

[0115] For example, the processor (14) may execute one or more programs stored in a computer-readable storage medium (16). The one or more programs may include one or more computer-executable instructions, and the computer-executable instructions may be configured to cause the computing device (12) to perform operations according to an exemplary embodiment when executed by the processor (14).

[0116] A computer-readable storage medium (16) is configured to store computer-executable instructions or program code, program data and / or other suitable forms of information. A program (20) stored in the computer-readable storage medium (16) includes a set of instructions executable by a processor (14).

[0117] In one embodiment, the computer-readable storage medium (16) may be a memory (volatile memory such as random access memory, non-volatile memory, or a suitable combination thereof), one or more magnetic disk storage devices, optical disk storage devices, flash memory devices, other forms of storage media that can be accessed by the computing device (12) and store desired information, or a suitable combination thereof.

[0118] The communication bus (18) interconnects various other components of the computing device (12), including the processor (14) and the computer-readable storage medium (16).

[0119] The computing device (12) may also include one or more input / output interfaces (22) and one or more network communication interfaces (26) that provide interfaces for one or more input / output devices (24). The input / output interfaces (22) and network communication interfaces (26) are connected to a communication bus (18).

[0120] The input / output device (24) may be connected to other components of the computing device (12) through the input / output interface (22). An exemplary input / output device (24) may include input devices such as a pointing device (mouse or trackpad, etc.), a keyboard, a touch input device (touchpad or touchscreen, etc.), a voice or sound input device, various types of sensor devices and / or shooting devices, and / or output devices such as a display device, a printer, a speaker and / or a network card.

[0121] An exemplary input / output device (24) may be included inside the computing device (12) as a component constituting the computing device (12), or may be connected to an external management server (not shown) for a composite monitoring device (e.g., 110 of FIG. 1) according to the present embodiment based on a pre-established communication protocol as a separate device distinct from the computing device (12).

[0122] Although embodiments of the present invention have been described above with reference to the attached drawings, those skilled in the art will understand that the present invention may be implemented in other specific forms without changing its technical concept or essential features. Therefore, the embodiments described above should be understood as illustrative in all respects and not restrictive.

[0123] Although specific embodiments have been described in the detailed description of this specification, various modifications are possible within the scope of this specification. Therefore, the scope of this specification should not be limited to the embodiments described above, but should be defined by the claims set forth below as well as equivalents to the claims of this invention. Explanation of the symbols

[0124] 100: Automatic fire extinguishing system 110: Rolling shutter device 120: Complex monitoring device BR: Battery Rack FE: One or more fire extinguishers in solid aerosol form

Claims

Claim 1 A method of operation for an automatic fire extinguishing system using a composite monitoring device attached to the interior of a battery rack comprises: acquiring composite sensing data regarding the interior of the battery rack from the composite monitoring device; determining whether an abnormal state is detected in the interior of the battery rack based on the composite sensing data; and generating a trigger signal to activate a rolling shutter device provided on the upper part of the battery rack when it is determined that the abnormal state is detected, wherein the composite sensing data includes carbon dioxide (CO₂) concentration information indicating the carbon dioxide (CO₂) concentration inside the battery rack, carbon monoxide (CO) concentration information indicating the carbon monoxide (CO) concentration inside the battery rack, temperature information indicating the temperature inside the battery rack, and humidity information indicating the humidity inside the battery rack, wherein the step of determining whether the abnormal state is detected satisfies all of the conditions that the carbon dioxide (CO₂) concentration is greater than or equal to a preset first threshold, the carbon monoxide (CO) concentration is greater than or equal to a preset second threshold, the temperature is greater than or equal to a preset third threshold, and the absolute value of the rate of change of the humidity over time is greater than or equal to a preset fourth threshold. A method, which is a step of determining that it is detected. Claim 2 delete Claim 3 A method according to claim 1, characterized in that when the trigger signal is received by the rolling shutter device, a fireproof cloth pre-rolled by the rolling shutter device is unfolded along a predetermined direction to seal the only open side of the battery rack. Claim 4 A method according to claim 3, wherein a plurality of battery packs stacked on the battery rack are detachably attached through the uniquely open side, and the remaining sides of the battery rack, excluding the one side, are sealed. Claim 5 The method according to claim 1, wherein the composite monitoring device comprises a plurality of sensors that generate the composite sensing data, and further comprises the step of determining whether a malfunction or signal interruption of at least one of the plurality of sensors is detected when it is determined that the abnormal state is detected, wherein the trigger signal is generated only when a malfunction or signal interruption of at least one of the plurality of sensors is not detected. Claim 6 A composite monitoring device attached to the interior of a battery rack; and a rolling shutter device linked to the composite monitoring device and provided on the upper part of the battery rack, wherein the composite monitoring device comprises: a composite sensor module for acquiring composite sensing data regarding the interior of the battery rack; and a sensor integrity determination module for verifying the integrity of the composite sensing data. The system includes a control module that determines whether an abnormal state has occurred inside the battery rack based on the composite sensing data and generates a trigger signal to activate the rolling shutter device according to the determination, wherein the composite sensor module includes a CO₂ detection sensor for measuring carbon dioxide (CO₂) concentration, a carbon monoxide detection sensor for measuring carbon monoxide (CO) concentration, a temperature sensor for measuring temperature, and a humidity sensor for measuring humidity, and the control module is implemented to determine that the abnormal state has occurred when all of the following conditions are satisfied: the carbon dioxide (CO₂) concentration is above a preset threshold, the carbon monoxide (CO) concentration is above a preset threshold, the temperature is above a preset threshold, and the absolute value of the rate of change of humidity over time is above a preset threshold; and the sensor integrity determination module transmits a sensor alarm signal to the control module when a malfunction or signal interruption is detected in at least one of the CO₂ detection sensor, the carbon monoxide detection sensor, the temperature sensor, and the humidity sensor included in the composite sensor module, and the control module generates the trigger signal only when the sensor alarm signal is not received. An automatic fire extinguishing system using a composite monitoring device, implemented such that when the trigger signal is received by the rolling shutter device, a fireproof cloth pre-rolled by the rolling shutter device is unfolded along a predetermined direction to seal the only open side of the battery rack. Claim 7 An automatic fire extinguishing system using a composite monitoring device, wherein, in claim 6, the composite monitoring device further comprises a communication module that transmits a judgment result related to whether the abnormal state is present to an external management server. Claim 8 An automatic fire extinguishing system using a composite monitoring device according to claim 6, wherein the control module is equipped with an artificial intelligence model that has been pre-trained to calculate the probability of an abnormal state occurring inside the battery rack using the composite sensing data, and the artificial intelligence model is implemented using at least one of an artificial neural network, a support vector machine, or a random forest, and the control module is implemented to simultaneously perform a judgment based on a preset threshold value for the rate of change over time of the carbon dioxide (CO₂) concentration, the carbon monoxide (CO) concentration, the temperature, and the humidity, and a judgment based on the probability of an abnormal state occurring calculated by the artificial intelligence model, and determine that the abnormal state has occurred inside the battery rack only when both judgment results satisfy the conditions for the occurrence of the abnormal state. Claim 9 An automatic fire extinguishing system using a composite monitoring device, characterized in that, in claim 8, it is implemented to determine that an abnormal condition has occurred inside the battery rack when the calculated probability is greater than or equal to a predetermined threshold value. Claim 10 An automatic fire extinguishing system using a composite monitoring device according to claim 6, further comprising one or more fire extinguishers in the form of solid aerosols implemented to spray an aerosol into the battery rack in conjunction with the composite monitoring device. Claim 11 A method according to claim 1, further comprising the step of using a pre-trained artificial intelligence model to calculate the probability of an abnormal state occurring inside the battery rack using the composite sensing data, wherein the artificial intelligence model is implemented using at least one of an artificial neural network, a support vector machine, or a random forest. Claim 12 The method according to claim 11, wherein the step of determining whether the abnormal state is detected comprises simultaneously performing a determination based on a preset threshold value for the rate of change over time of the carbon dioxide (CO₂) concentration, the carbon monoxide (CO) concentration, the temperature, and the humidity, and a determination based on the probability of occurrence of the abnormal state calculated by the artificial intelligence model, and determining that the abnormal state is detected only when both determination results satisfy the conditions for occurrence of the abnormal state. Claim 13 A method according to claim 11, further comprising the step of determining that an abnormal condition has occurred inside the battery rack if the calculated probability is greater than or equal to a predetermined threshold value.

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