CN115764575A - Intelligent fireproof system and method for distribution box - Google Patents
Intelligent fireproof system and method for distribution box Download PDFInfo
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- CN115764575A CN115764575A CN202211475451.1A CN202211475451A CN115764575A CN 115764575 A CN115764575 A CN 115764575A CN 202211475451 A CN202211475451 A CN 202211475451A CN 115764575 A CN115764575 A CN 115764575A
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Abstract
The invention discloses an intelligent fire prevention system and method for a distribution box, and relates to the technical field of distribution box monitoring. The intelligent smoke monitoring system comprises a main control module, a smoke monitoring module, a distribution box control module, a temperature monitoring module and a data transmission module, wherein the main control module is in communication connection with the smoke monitoring module, the distribution box control module, the temperature monitoring module and the data transmission module respectively. The data transmission module and the data transfer module that set up form the dual fail-safe, thereby the control to the block terminal under the weak state of wireless transmission signal is dealt with, the buffering formula carbon dioxide extinguishing device of setting can cushion the jet stream of carbon dioxide, thereby avoid the block terminal internals that the too fast velocity of flow of carbon dioxide leads to damage, the coordinated type seal structure of setting is sealed the operation through the closing plate to the block terminal when carbon dioxide extinguishing device launches, thereby keep apart block terminal and external, be convenient for block oxygen's entering.
Description
Technical Field
The invention relates to the technical field of distribution box monitoring, in particular to an intelligent fire prevention system and method for a distribution box.
Background
The distribution box plays an important role in our work and life, and plays a role in controlling and managing our electricity consumption, but once a fire happens, not only the normal work and life of people are influenced, but also the life and property of people are seriously threatened. For distribution box equipment at the end of a distribution system, it is more directly related to each home and business. However, since the system end distribution boxes are generally located indoors, it is difficult for distribution companies to periodically check them, and users in the rooms have a poor knowledge of electricity usage. In the actual electricity utilization process, few users can actively carry out periodic inspection and maintenance on the electricity utilization equipment and the distribution box; some larger enterprises (e.g. malls, processing plants, residential property, etc.) have employees (e.g. electricians) arranged to perform regular equipment inspection and maintenance, but the operation of the power equipment depends greatly on the responsibility of the employees, which makes the power utilization uncertain, and cannot be handled in time if a fire occurs. In addition, for most users, the use of high-power electric equipment is a common phenomenon, some users even pull and privately connect wires, privately add electric appliances on the original line, buy and use inferior electric equipment, stack a large number of flammable and explosive articles around a distribution box, and in order to drive a project, the equipment of some enterprises is even in a full-load operation state for a long time, and the like, which easily causes the occurrence of electric fire, and is also a main reason for frequent ignition accidents of the enterprises and families. When the conflagration takes place, in order to prevent the expansion of electric fire and the emergence of the wounded accident of electric shock when fighting a fire, what at first should do is the cut-off power supply, however, the block terminal generally is located indoor distribution system's most upstream end, when the block terminal catches fire when appearing, if the cut-off power supply, then need cut off through the electric well or the last level block terminal in block terminal upper reaches, and the electric well and the last level block terminal on upper reaches are unmanned on duty usually, and the block terminal of last level often is far away apart from the block terminal that catches fire, the electric well of relatively nearer upper reaches of distance is generally managed by the special messenger, can't in time open, consequently all hardly realize cutting off the power supply in the short time. In addition, because the monitoring analysis of the prior art to the distribution system is not perfect, the reason analysis to catching fire is often difficult to find the source that catches fire after the block terminal catches fire or the fire disaster.
In order to solve the problems, the invention patent with the publication number of CN 115207785A discloses an intelligent fire protection system and a method thereof for a distribution box, wherein a cloud-end block chain is used for data storage in a manner of being matched with a storage unit, a large local storage space is not required to be occupied, and the block chain has the characteristics of stable data, safety, non-falsification and the like, so that data can be conveniently retrieved in the later traceability process; by means of wireless communication modes such as a wifi network in a place, the processing unit and the distribution box are separately arranged, and even if the distribution box catches fire, the implementation of power-off operation, power-off alarm and the like is not influenced.
However, the above solutions still have some disadvantages, wherein the above solutions transmit a large amount of data when a fire occurs, but in case of fire, residents near the fire point may generate panic, and residents and people around the fire may alarm or perform communication operations, which occupy a large amount of networks and signals, and thus the communication of the distribution box is blocked, thereby affecting the data transmission of the distribution box.
Disclosure of Invention
The invention provides an intelligent fire prevention system of a distribution box and a method thereof, which aim to solve the problems in the background technology.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: the intelligent fire prevention system for the distribution box comprises a main control module, a smoke monitoring module, a distribution box control module, a temperature monitoring module and a data transmission module, wherein the main control module is in communication connection with the smoke monitoring module, the distribution box control module, the temperature monitoring module and the data transmission module respectively.
The technical scheme of the invention is further improved as follows: the smoke monitoring module monitors air inside the distribution box and air outside the distribution box in real time, the smoke monitoring module is arranged at an air outlet of the distribution box, the heat dissipation mechanism blows external air to the inside of the distribution box, meanwhile, air inside the distribution box is discharged from the air outlet, the air inside the distribution box is collected to the air outlet under the driving of the heat dissipation mechanism and is discharged from the air outlet at a high flow speed, when smoke occurs inside the distribution box, the volume of the smoke is reduced when the smoke flows and is collected along with the air, the smoke concentration is improved, the collected smoke is easier to trigger the alarm of the smoke monitoring module, when the smoke monitoring module monitors the smoke inside the distribution box, the smoke monitoring module on the outer side of the distribution box is synchronously started, smoke monitoring is started at an air inlet of the heat dissipation mechanism, the smoke monitoring information in the external environment is transmitted to the main control module, when the smoke monitoring module on the outer side of the distribution box monitors the smoke, the smoke monitoring module indicates that the smoke triggering the smoke alarm may come from the smoke or second-hand smoke outside the distribution box, the main control module acquires the temperature information monitored by the temperature monitoring module, and estimates that the abnormal state is a low-risk state or a high-risk state according to the external temperature information, and estimates that the abnormal state that the smoke monitoring module is not a high-risk state, and the abnormal state of the external temperature monitoring module is not required by the external temperature. By adopting the technical scheme, the smoke monitoring module in the scheme monitors the internal and external environments of the distribution box at the same time, so that the smoke alarm caused by accidental touch of second-hand smoke or straw burning is avoided.
The technical scheme of the invention is further improved as follows: temperature monitoring module carries out real-time supervision to block terminal internal environment temperature and external environment temperature, when temperature information abnormal state appears, temperature monitoring module transmits monitoring information to host system, host system assesses abnormal state according to smog monitoring module transmission data simultaneously, when smog monitoring module monitoring information is in normal condition, then explain that the block terminal is inside to be in the high load state, host system assesses this abnormal information to danger abnormal state, transmit abnormal information to data transmission module and heat dissipation mechanism simultaneously, heat dissipation mechanism power increases, promote the heat dissipation cooling efficiency to the block terminal inside. By adopting the technical scheme, the temperature monitoring module in the scheme can synchronously monitor the internal and external temperatures of the distribution box.
The technical scheme of the invention is further improved as follows: the distribution box control module is arranged at the power input end of the distribution box, when the distribution box is in an abnormal state, the main control module evaluates the abnormal state, the monitoring numerical value of the smoke monitoring module in the distribution box is higher than a set value, and when the monitoring numerical value of the temperature monitoring module is higher than the set value, the main control module sets the abnormal state in the distribution box in a high-risk abnormal state, and simultaneously, the distribution box control module cuts off the input power of the distribution box.
The technical scheme of the invention is further improved as follows: the data transfer module is arranged inside a wall body near the distribution box, and the data transfer module is in communication connection with the data transmission module.
The technical scheme of the invention is further improved as follows: the data transfer module adopts independent power supply, adopt multiple wireless communication mode to be connected between data transfer module and the data transmission module simultaneously, when high risk abnormal state takes place, data transmission module sends abnormal state information to control personnel and data transfer module in turn, it is too weak to occupy the signal that wireless communication leads to in a large number of personnel when avoiding the conflagration to take place, short distance wireless transmission can transmit through modes such as bluetooth, and in time transmit abnormal state information to control personnel department through the wired data transmission who inlays to establish in the wall body inside.
The technical scheme of the invention is further improved as follows: when the data transfer module is disconnected with the data transmission module for a long time, the data transfer module evaluates the abnormal information into a high-risk abnormal state, a monitoring person communicates with the data transmission module and the data transfer module, when the data transmission module can upload information to the monitoring person, the data transmission between the data transmission module and the data transfer module is blocked, maintenance operation needs to be carried out on the data transmission module by a maintenance person, and when the monitoring person cannot establish communication with the data transmission module, the data transmission module is damaged or the data transmission cannot be established due to other abnormal states.
The technical scheme of the invention is further improved as follows: including the block terminal body, block terminal body both sides are equipped with carbon dioxide extinguishing device, block terminal body side top is equipped with heat dissipation mechanism, the heat dissipation mechanism outside is equipped with the closing plate, the closing plate top is equipped with suspension rope, suspension rope end passes the block terminal body and sets up inside this body of block terminal, the inside cushion chamber that is equipped with of block terminal body, the cushion chamber sets up at block terminal body inner wall, communicate each other between cushion chamber and the carbon dioxide extinguishing device, the cushion chamber bottom is equipped with the through-hole, be equipped with the sealing plug in the through-hole, fixed connection between sealing plug and the suspension rope.
The technical scheme of the invention is further improved as follows: the air outlet sets up the one side bottom of keeping away from heat dissipation mechanism at the block terminal body, host system and communication module set up in carbon dioxide extinguishing device side, smoke monitoring module is equipped with two, two smoke monitoring module sets up respectively in the inside and block terminal body outside of air outlet, temperature monitoring module is equipped with two, two temperature monitoring module sets up respectively in block terminal body inner wall and block terminal body outside.
The technical scheme of the invention is further improved as follows: the method comprises the following steps:
s1, a main control module acquires running state information of a distribution box through a smoke monitoring module and a temperature monitoring module;
s2, the master control module evaluates the level of an abnormal state in the distribution box according to monitoring information of the smoke monitoring module and the temperature monitoring module;
s3, the main control module transmits abnormal state information to monitoring personnel through the data transmission module;
and S4, the master control module processes the fire state in the distribution box.
Due to the adoption of the technical scheme, compared with the prior art, the invention has the technical progress that:
1. the invention provides an intelligent fire prevention system and method for a distribution box.
2. The invention provides an intelligent fire prevention system and method for a distribution box.
3. The invention provides an intelligent fire prevention system and method for a distribution box.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the construction of the electrical distribution box of the present invention;
FIG. 3 is a schematic view of the internal structure of the distribution box of the present invention;
in the figure: 1. a distribution box body; 2. a carbon dioxide fire extinguishing device; 3. a heat dissipation mechanism; 4. sealing plates; 5. a suspension rope; 6. a buffer chamber; 7. a through hole; 8. and (4) sealing the plug.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The working principle of the intelligent fire prevention system and the intelligent fire prevention method for the distribution box is described in detail below.
As shown in fig. 1-3, when in use, the device comprises a main control module, a smoke monitoring module, a distribution box control module, a temperature monitoring module and a data transmission module, wherein the main control module is respectively in communication connection with the smoke monitoring module, the distribution box control module, the temperature monitoring module and the data transmission module; the method comprises the steps that a smoke monitoring module monitors air inside a distribution box and air outside the distribution box in real time, the smoke monitoring module is arranged at an air outlet of the distribution box, a heat dissipation mechanism blows external air into the distribution box, the air inside the distribution box is exhausted from the air outlet, the air inside the distribution box is collected to the air outlet under the driving of the heat dissipation mechanism and is exhausted from the air outlet at a high flow speed, when smoke occurs inside the distribution box, the volume of the smoke is reduced when the smoke flows and is collected along with the air, the smoke concentration is improved, the collected smoke is easier to trigger the alarm of the smoke monitoring module, when the smoke monitoring module inside the distribution box monitors the smoke, the smoke monitoring module outside the distribution box is synchronously started, smoke monitoring is started at an air inlet of the heat dissipation mechanism, the smoke monitoring information in the external environment is transmitted to a main control module, when the smoke monitoring module outside the distribution box monitors the smoke, the smoke triggering the smoke alarm is probably from the fire smoke or second-hand smoke outside the distribution box, the main control module acquires the temperature information monitored by the temperature monitoring module, and estimates that the abnormal state is a low-risk abnormal state or a high-risk abnormal state according to the external temperature information, and the main control module does not need to estimate the abnormal state when the smoke monitoring module monitors the smoke; the temperature monitoring module monitors the internal environment temperature and the external environment temperature of the distribution box in real time, when the temperature information is in an abnormal state, the temperature monitoring module transmits the monitoring information to the main control module, meanwhile, the main control module evaluates the abnormal state according to data transmitted by the smoke monitoring module, when the monitoring information of the smoke monitoring module is in a normal state, the internal part of the distribution box is in a high-load state, the main control module evaluates the abnormal information into an abnormal state with risk, and simultaneously transmits the abnormal information to the data transmission module and the heat dissipation mechanism, the power of the heat dissipation mechanism is increased, and the heat dissipation and cooling efficiency of the internal part of the distribution box is improved; the distribution box control module is arranged at the power input end of the distribution box, when an abnormal state occurs in the distribution box, the main control module evaluates the abnormal state, when the monitoring numerical value of the smoke monitoring module in the distribution box is higher than a set value and the monitoring numerical value of the temperature monitoring module is higher than the set value, the main control module sets the abnormal state in the distribution box in a high-risk abnormal state, and simultaneously, the distribution box control module cuts off the power input by the distribution box; the data transfer module is arranged in a wall body near the distribution box and is in communication connection with the data transmission module; the data transfer module is powered by an independent power supply, meanwhile, the data transfer module is connected with the data transmission module in various wireless communication modes, when a high-risk abnormal state occurs, the data transmission module alternately sends abnormal state information to monitoring personnel and the data transfer module so as to avoid the situation that a large number of personnel occupy wireless communication to cause too weak signals when a fire disaster occurs, short-distance wireless transmission can be carried out in a Bluetooth mode and the like, and the abnormal state information is timely transmitted to the monitoring personnel through wired data transmission embedded in a wall; when the data transfer module is disconnected with the data transmission module for a long time, the data transfer module evaluates the abnormal information into a high-risk abnormal state, a monitoring person communicates with the data transmission module and the data transfer module, when the data transmission module can upload information to the monitoring person, the data transmission between the data transmission module and the data transfer module is blocked, maintenance operation needs to be carried out on the data transmission module by a maintenance person, and when the monitoring person cannot establish communication with the data transmission module, the data transmission module is damaged or the data transmission cannot be established due to other abnormal states.
The carbon dioxide fire extinguishing device comprises a distribution box body 1, carbon dioxide fire extinguishing devices 2 are arranged on two sides of the distribution box body 1, a heat dissipation mechanism 3 is arranged at the top end of the side face of the distribution box body 1, a sealing plate 4 is arranged on the outer side of the heat dissipation mechanism 3, a suspension rope 5 is arranged at the top end of the sealing plate 4, the tail end of the suspension rope 5 penetrates through the distribution box body 1 and is arranged inside the distribution box body 1, a buffer cavity 6 is arranged inside the distribution box body 1, the buffer cavity 6 is arranged on the inner wall of the distribution box body 1, the buffer cavity 6 and the carbon dioxide fire extinguishing devices 2 are mutually communicated, a through hole 7 is formed in the bottom end of the buffer cavity 6, a sealing plug 8 is arranged in the through hole 7, and the sealing plug 8 is fixedly connected with the suspension rope 5; the air outlet sets up the one side bottom of keeping away from heat dissipation mechanism 3 at block terminal body 1, and host system and communication module set up in carbon dioxide extinguishing device 2 sides, and smoke monitoring module is equipped with two, and two smoke monitoring module set up respectively in the air outlet inside and the 1 outside of block terminal body, and temperature monitoring module is equipped with two, and two temperature monitoring module set up respectively in the 1 inner wall of block terminal body and the 1 outside of block terminal body.
In the use, when main control module handled inside conflagration or conflagration hidden danger through carbon dioxide extinguishing device 2, carbon dioxide extinguishing device 2 sprays carbon dioxide to buffer chamber 6 insidely, 6 internal pressure surge in buffer chamber, thereby push away sealing plug 8, closing plate 4 pulls along with it and draws suspension rope 5 to remove, closing plate 4 seals heat dissipation mechanism 3 and air outlet thereupon, thereby reduce the entering of external oxygen, promote the efficiency of putting out a fire, carbon dioxide is from through-hole 7 steady outflow under the buffering of buffer chamber 6 simultaneously, the cooling operation of putting out a fire to inside.
It should be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a reference structure" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Claims (10)
1. The utility model provides a block terminal intelligence fire protection system which characterized in that: the intelligent smoke monitoring system comprises a main control module, a smoke monitoring module, a distribution box control module, a temperature monitoring module and a data transmission module, wherein the main control module is in communication connection with the smoke monitoring module, the distribution box control module, the temperature monitoring module and the data transmission module respectively.
2. The intelligent fire protection system of distribution box of claim 1, wherein: the smoke monitoring module carries out real-time supervision to the inside and block terminal outside air of block terminal, and smoke monitoring module sets up at the block terminal air outlet, and heat dissipation mechanism blows outside air to inside the block terminal, and the inside air of block terminal is discharged from the air outlet simultaneously, and the inside air of block terminal collects to the air outlet under heat dissipation mechanism's drive to discharge from the air outlet with the high velocity of flow.
3. The intelligent fire protection system of distribution box of claim 2, wherein: the temperature monitoring module carries out real-time supervision to block terminal internal environment temperature and external environment temperature, and when temperature information abnormal state appeared, temperature monitoring module transmits monitoring information to host system, and host system assesses abnormal state according to smog monitoring module transmission data simultaneously.
4. The intelligent fire protection system of distribution box of claim 3, wherein: the distribution box control module is arranged at a power input end of the distribution box, when abnormal conditions occur inside the distribution box, the main control module evaluates the abnormal conditions, when the monitoring value of the smoke monitoring module inside the distribution box is higher than a set value, and when the monitoring value of the temperature monitoring module is higher than the set value, the main control module sets the abnormal conditions inside the distribution box in a high-risk abnormal condition, and simultaneously, the distribution box control module cuts off an input power supply of the distribution box.
5. The intelligent fire protection system of distribution box of claim 4, wherein: the data transfer module is arranged inside a wall body near the distribution box, and the data transfer module is in communication connection with the data transmission module.
6. The intelligent fire protection system of distribution box of claim 5, wherein: the data transfer module adopts independent power supply, adopt multiple wireless communication mode to be connected between data transfer module and the data transmission module simultaneously, when high risk abnormal state takes place, data transmission module sends abnormal state information to control personnel and data transfer module in turn, it is too weak to occupy the signal that wireless communication leads to in a large number of personnel when avoiding the conflagration to take place, short distance wireless transmission can transmit through modes such as bluetooth, and in time transmit abnormal state information to control personnel department through the wired data transmission who inlays to establish in the wall body inside.
7. The intelligent fire protection system of distribution box of claim 6, wherein: when the data transfer module is disconnected with the data transmission module for a long time, the data transfer module evaluates the abnormal information into a high-risk abnormal state, a monitoring person communicates with the data transmission module and the data transfer module, when the data transmission module can upload information to the monitoring person, the situation that data transmission between the data transmission module and the data transfer module is blocked and maintenance operation needs to be carried out on the data transfer module by the maintenance person is indicated, and when the monitoring person cannot communicate with the data transmission module, the situation that data transmission cannot be established due to the fact that the data transmission module is damaged or other abnormal states is indicated.
8. The intelligent fire protection system of distribution box of claim 7, further providing an intelligent fire protection device of distribution box, comprising a distribution box body, characterized in that: block terminal body both sides are equipped with carbon dioxide extinguishing device, block terminal body side top is equipped with heat dissipation mechanism, the heat dissipation mechanism outside is equipped with the closing plate, the closing plate top is equipped with suspension rope, suspension rope end passes the block terminal body and sets up inside the block terminal body, this internal portion of block terminal is equipped with the cushion chamber, the cushion chamber sets up at block terminal body inner wall, communicate each other between cushion chamber and the carbon dioxide extinguishing device, the cushion chamber bottom is equipped with the through-hole, be equipped with the sealing plug in the through-hole, fixed connection between sealing plug and the suspension rope.
9. The intelligent fire-protection device for distribution boxes of claim 8, wherein: the air outlet sets up the one side bottom of keeping away from heat dissipation mechanism at the block terminal body, host system and communication module set up in carbon dioxide extinguishing device side, smoke monitoring module is equipped with two, two smoke monitoring module sets up respectively in the inside and block terminal body outside of air outlet, temperature monitoring module is equipped with two, two temperature monitoring module sets up respectively in block terminal body inner wall and block terminal body outside.
10. The intelligent fire protection method for the distribution box according to claim 9, wherein the method comprises the following steps: the method comprises the following steps:
s1, a main control module acquires running state information of a distribution box through a smoke monitoring module and a temperature monitoring module;
s2, the master control module evaluates the level of an abnormal state in the distribution box according to monitoring information of the smoke monitoring module and the temperature monitoring module;
s3, the main control module transmits abnormal state information to monitoring personnel through the data transmission module;
and S4, the main control module processes the fire state in the distribution box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202211475451.1A CN115764575A (en) | 2022-11-23 | 2022-11-23 | Intelligent fireproof system and method for distribution box |
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| CN202211475451.1A CN115764575A (en) | 2022-11-23 | 2022-11-23 | Intelligent fireproof system and method for distribution box |
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| CN115764575A true CN115764575A (en) | 2023-03-07 |
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| CN202211475451.1A Pending CN115764575A (en) | 2022-11-23 | 2022-11-23 | Intelligent fireproof system and method for distribution box |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117373224A (en) * | 2023-12-06 | 2024-01-09 | 凯恩茨(福州)工业有限公司 | Small-space fire-fighting safety management system |
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2022
- 2022-11-23 CN CN202211475451.1A patent/CN115764575A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117373224A (en) * | 2023-12-06 | 2024-01-09 | 凯恩茨(福州)工业有限公司 | Small-space fire-fighting safety management system |
| CN117373224B (en) * | 2023-12-06 | 2024-01-30 | 凯恩茨(福州)工业有限公司 | Small-space fire-fighting safety management system |
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