An electrical cabinet monitoring and fire extinguishing apparatus

Abstract

The application relates to an electrical cabinet monitoring and fire extinguishing device, which comprises an infrared surface temperature sensor, an ultraviolet light sensor, an infrared light sensor, a fire extinguishing device and a controller. The infrared surface temperature sensor is used for real-time scanning of a cabinet internal surface temperature field, and the surface area monitoring replaces a point probe, so that the coverage capacity and early warning accuracy are improved, and the blind area and the missed detection probability are reduced. When the temperature of a certain area exceeds a preset temperature threshold, the controller determines that an abnormality occurs, at this time, the ultraviolet light sensor and the infrared light sensor are used for collecting ultraviolet band spectra and infrared band spectra in the electrical cabinet, the characteristic spectra of a real flame can be recognized, false positives caused by non-fire factors can be avoided, and the accurate identification of the fire is enhanced. When a fire source appears in the electrical cabinet, the controller can complete accurate decision-making without human intervention, and is linked with the automatic fire extinguishing device, so that intervention can be completed in the early stage of the fire, and the accident loss and the diffusion risk are significantly reduced.

Description

Technical Field

[0001] This application relates to the field of fire alarm equipment technology, and in particular to an electrical cabinet monitoring and fire extinguishing device. Background Technology

[0002] In the industrial sector, distribution cabinets and electrical cabinets are prone to fire accidents due to hidden dangers such as aging circuits, short circuits, and overloads. Moreover, the initial fires are highly concealed and spread rapidly.

[0003] Traditional electrical cabinet fire alarm monitoring solutions have the following significant drawbacks:

[0004] 1. Limitations of single-point temperature monitoring: Using a single temperature probe can only cover a local area and cannot capture anomalies in the surface temperature field, resulting in a high risk of missed detection.

[0005] 2. Frequent false alarms due to single sensor: When relying on a single smoke or light detection, it is easily affected by environmental dust, water vapor, equipment arcs, etc., leading to false alarms;

[0006] 3. Delayed emergency response: Manual patrols or traditional fire extinguishing devices are difficult to intervene in a timely manner in the early stage of a fire (smoldering stage), and the risk of personnel handling the situation is prominent under high pressure. Utility Model Content

[0007] To overcome, to at least some extent, the problems of missed detection, false alarms, and untimely processing in electrical cabinet fire alarm monitoring in related technologies, this application provides an electrical cabinet monitoring and fire extinguishing device.

[0008] The proposed solution is as follows:

[0009] An electrical cabinet monitoring and fire suppression device, comprising:

[0010] Infrared temperature sensors, ultraviolet light sensors, infrared light sensors, fire extinguishing devices and controllers;

[0011] The infrared temperature sensor, ultraviolet light sensor, infrared light sensor, and fire extinguishing device are all connected to the controller;

[0012] The infrared temperature sensor is installed inside the electrical cabinet and is used to scan the surface temperature field distribution inside the electrical cabinet.

[0013] The ultraviolet light sensor is installed inside the electrical cabinet and is used to collect the ultraviolet spectrum inside the electrical cabinet;

[0014] The infrared light sensor is installed inside the electrical cabinet and is used to collect the infrared spectrum inside the electrical cabinet.

[0015] The controller is used to control the activation of the fire extinguishing device.

[0016] Preferably, it further includes:

[0017] Local alarm module;

[0018] The local alarm module is connected to the controller;

[0019] The local alarm module includes a sound alarm and a light alarm.

[0020] Preferably, it further includes:

[0021] Communication module;

[0022] The communication module is connected to the controller and wirelessly connected to the client's mobile terminal.

[0023] Preferably, it further includes:

[0024] Positioning module;

[0025] The positioning module is connected to the controller;

[0026] The communication module is connected to the central control system via wired / wireless communication.

[0027] Preferably, it further includes:

[0028] Infrared thermal imaging sensor;

[0029] The infrared thermal imaging sensor is connected to the controller and is installed inside the electrical cabinet.

[0030] The infrared thermal imaging sensor is used to acquire infrared images of the interior of the electrical cabinet.

[0031] Preferably, it further includes:

[0032] Dual-channel differential smoke sensor;

[0033] The dual-channel differential smoke sensor is connected to the controller and is installed inside the electrical cabinet;

[0034] The two channels of the dual-channel differential smoke sensor are used to monitor different types of smoke, and the two channels are set with different smoke trigger thresholds;

[0035] The dual-channel differential smoke sensor is used to send smoke alarm information to the controller when either channel triggers a threshold alarm.

[0036] Preferably, the fire extinguishing device includes:

[0037] Aerosol fire extinguishing devices, and / or gas sprinkler systems.

[0038] Preferably, it further includes:

[0039] Data exchange interface;

[0040] The data exchange interface is connected to the controller.

[0041] The technical solution provided in this application may include the following beneficial effects:

[0042] In this technical solution, an infrared temperature sensor scans the surface temperature field inside the cabinet in real time. The infrared temperature sensor can provide a thermal distribution map of the entire cabinet. Surface monitoring replaces point probes, improving coverage and early warning accuracy, realizing an upgrade from "point monitoring" to "surface monitoring", significantly reducing blind spots and the probability of missed detection, and improving the system's sensing resolution.

[0043] When the temperature in a certain area exceeds the preset temperature threshold (e.g., 80℃), the controller determines it to be abnormal. At this time, the ultraviolet and infrared light sensors collect the ultraviolet and infrared light spectra inside the electrical cabinet. The combination of ultraviolet and infrared sensors can identify the characteristic spectrum of real flames (such as the UV transient of sparks and the IR radiation of combustion), which can avoid false alarms caused by non-fire factors such as steam, dust, and electric arcs, and enhance the accurate identification of the transition stage from initial smoldering to open flame.

[0044] Based on multi-dimensional thresholds and feature judgments, the controller can determine whether there is a fire source inside the electrical cabinet. When a fire source is found inside the electrical cabinet, it can make accurate decisions without human intervention and link with automatic fire extinguishing equipment to ensure intervention in the early stage of a fire, significantly reducing accident losses and the risk of spread.

[0045] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0046] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0047] Figure 1 This is a schematic diagram of the structure of an electrical cabinet monitoring and fire extinguishing device according to one embodiment of this application;

[0048] Figure 2 This is a structural schematic diagram of an electrical cabinet monitoring and fire extinguishing device provided in another embodiment of this application.

[0049] Reference numerals: Infrared temperature sensor-1; Ultraviolet light sensor-2; Infrared light sensor-3; Fire extinguishing device-4; Controller-5; Local alarm module-6; Communication module-7; Positioning module-8; Infrared thermal imaging sensor-9; Dual-channel differential smoke sensor-10; Data exchange interface-11. Detailed Implementation

[0050] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0051] Example 1

[0052] Figure 1 This is a structural schematic diagram of an electrical cabinet monitoring and fire extinguishing device according to an embodiment of this application, with reference to... Figure 1 An electrical cabinet monitoring and fire suppression device, comprising:

[0053] Infrared temperature sensor 1, ultraviolet light sensor 2, infrared light sensor 3, fire extinguishing device 4, and controller 5;

[0054] Infrared temperature sensor 1, ultraviolet light sensor 2, infrared light sensor 3, and fire extinguishing device 4 are all connected to controller 5;

[0055] Infrared surface temperature sensor 1 is installed inside the electrical cabinet to scan the surface temperature field distribution inside the electrical cabinet and send the scanning results to controller 5;

[0056] The ultraviolet light sensor 2 is installed inside the electrical cabinet. When it receives a collection command, it collects the ultraviolet spectrum inside the electrical cabinet and sends the collected ultraviolet spectrum to the controller 5.

[0057] Infrared light sensor 3 is installed inside the electrical cabinet. When a collection command is received, it collects the infrared spectrum inside the electrical cabinet and sends the collected infrared spectrum to controller 5.

[0058] The controller 5 is used to determine whether the temperature inside the electrical cabinet exceeds the preset temperature threshold based on the scanning result of the infrared temperature sensor 1; when the temperature inside the electrical cabinet exceeds the preset temperature threshold, it sends a collection command to the ultraviolet light sensor 2 and the infrared light sensor 3.

[0059] The controller 5 also determines whether there is a fire source inside the electrical cabinet based on the ultraviolet and infrared spectra; when a fire source is found inside the electrical cabinet, it controls the fire extinguishing device 4 to start.

[0060] During implementation, the infrared temperature sensor 1 scans the temperature field distribution inside the electrical cabinet in real time, generating a thermal imaging map with a detection accuracy of ±0.1℃ and a pixel resolution of 256×192. The infrared temperature sensor 1 provides comprehensive monitoring coverage, supports temperature gradient analysis and historical data tracing, and can identify local overheating trends in advance.

[0061] Ultraviolet (UV) sensor 2 and infrared (IR) sensor 3 simultaneously acquire UV (flame characteristic spectrum) and IR (thermal radiation signal) wavelengths, with a response time of <50ms. Both UV sensor 2 and IR sensor 3 employ independent dual-spectrum calibration and incorporate an adaptive filtering algorithm to effectively eliminate interference from sunlight, equipment light sources, and other sources.

[0062] In this technical solution, the infrared temperature sensor 1 scans the surface temperature field inside the cabinet in real time. The infrared temperature sensor 1 can provide a thermal distribution map of the entire cabinet. Surface monitoring replaces point probes, improving coverage and early warning accuracy, realizing the upgrade from "point monitoring" to "surface monitoring", significantly reducing blind spots and missed detection probability, and improving the system's perception resolution.

[0063] When the temperature in a certain area exceeds the preset temperature threshold (e.g., 80℃), the controller 5 determines it to be abnormal. At this time, the ultraviolet light sensor 2 and the infrared light sensor 3 collect the ultraviolet and infrared spectra inside the electrical cabinet. The combination of ultraviolet and infrared sensors can identify the characteristic spectra of real flames (e.g., the UV transient of sparks and the IR radiation of combustion), which can avoid false alarms caused by non-fire factors such as steam, dust, and electric arcs, and enhance the accurate identification of the transition stage from initial smoldering to open flame.

[0064] Based on multi-dimensional threshold and feature judgment, the controller 5 can determine whether there is a fire source inside the electrical cabinet. When a fire source is found inside the electrical cabinet, it can make accurate decisions without human intervention and link with automatic fire extinguishing equipment to ensure intervention in the early stage of a fire, significantly reducing accident losses and the risk of spread.

[0065] Example 2

[0066] Reference Figure 2 Electrical cabinet monitoring and fire suppression equipment also includes:

[0067] Local alarm module 6;

[0068] Local alarm module 6 is connected to controller 5;

[0069] Local alarm module 6 includes a sound alarm and a light alarm;

[0070] When a fire source appears inside the electrical cabinet, controller 5 will trigger the local alarm module 6 to sound an alarm.

[0071] Local alarm module 6 includes:

[0072] Sound alarms (such as buzzers, sirens, etc.): emit high-decibel sounds;

[0073] Light alarms (such as red warning lights, strobe lights, etc.): emit bright flashes.

[0074] The working logic is as follows:

[0075] Controller 5 determines that a fire source has occurred inside the electrical cabinet (confirmed by both temperature and spectrum) and sends a trigger command to the local alarm module 6. The local alarm module 6 alerts nearby personnel through synchronized audio and visual output, which is synchronized with or preemptively executed with the fire extinguishing device 4, and helps with personnel evacuation, on-duty personnel response, or power outage operations.

[0076] Local alarm devices can directly alert nearby personnel or operators to a fire without requiring a network connection or remote platform response; this is especially important in environments with limited network or communication (such as substations or distribution boxes far from the control center); the audible and visual alerts are in line with the usual operating habits in industrial sites, and the alarm intent can be quickly understood without professional training.

[0077] Example 3

[0078] Reference Figure 2 Electrical cabinet monitoring and fire suppression equipment also includes:

[0079] Communication module 7;

[0080] The communication module 7 is connected to the controller 5 and wirelessly connects to the customer's mobile terminal;

[0081] When a fire source appears inside the electrical cabinet, controller 5 sends an alarm message to the customer's mobile terminal via communication module 7.

[0082] Based on the "local audible and visual alarm", this claim further introduces a remote communication mechanism to realize remote synchronous push and response to abnormal equipment status, thus forming a remote early warning and notification system.

[0083] The communication module 7 is connected to the controller 5 and is used to transmit the status or event data of the controller 5. The communication method is wireless communication, which may include 4G, NB-IoT, Wi-Fi, LoRa, etc. The connection object is the customer's mobile terminal, such as mobile app, WeChat mini program, SMS receiving platform, etc.

[0084] Controller 5 sending logic:

[0085] When a fire source is detected inside the electrical cabinet (confirmed as a fire by infrared temperature and spectral analysis), the controller 5 triggers the communication module 7, which then sends the fire information / alarm content to the bound customer mobile terminal.

[0086] The introduction of communication module 7 enables remote, real-time alarm functionality, improving response coverage. No on-site confirmation by on-duty personnel is required; the status of the electrical cabinet can be monitored immediately using only a mobile terminal.

[0087] Suitable for the following scenarios:

[0088] Unmanned power distribution rooms, nighttime, holidays, remote locations, and other environments where personnel are not frequently present.

[0089] Furthermore, it also includes:

[0090] Positioning module 8;

[0091] Positioning module 8 is connected to controller 5;

[0092] Communication module 7 connects to the central control system via wired / wireless communication;

[0093] The controller 5 obtains the current location information through the positioning module 8, and sends alarm information and current location information to the customer's mobile terminal and the central control system through the communication module 7.

[0094] The positioning module 8 can be based on GPS, Beidou (for outdoor electrical cabinets), or UWB, Bluetooth positioning, Wi-Fi positioning (for indoor environments) and other technologies.

[0095] The communication module 7 also communicates with the central control system and can transmit structured data, including alarm status, fire level, and location coordinates.

[0096] Controller 5 Behavioral Logic:

[0097] When a fire source is detected inside the electrical cabinet, the location information returned by the current positioning module 8 is obtained; the alarm information and the current positioning information are packaged and sent to the customer's mobile terminal and the central control system through the communication module 7.

[0098] When a fire alarm occurs, the system can not only upload alarms from multiple devices, but also include the accurate location (such as GPS coordinates or relative coordinates within the factory area);

[0099] The central control platform can accurately mark alarm points on maps, floor plans, and 3D models, guiding fire duty personnel to quickly reach the corresponding locations, which is especially crucial in scenarios with multiple devices deployed.

[0100] Example 4

[0101] Reference Figure 2 Electrical cabinet monitoring and fire suppression equipment also includes:

[0102] Infrared thermal imaging sensor 9;

[0103] Infrared thermal imaging sensor 9 is connected to controller 5 and is located inside the electrical cabinet;

[0104] When the temperature inside the electrical cabinet exceeds the preset temperature threshold, the controller 5 sends a data acquisition command to the infrared thermal imaging sensor 9.

[0105] Infrared thermal imaging sensor 9 is used to acquire infrared images inside the electrical cabinet when it receives an acquisition command, and send the acquired infrared images to controller 5;

[0106] The controller 5 sends infrared images to the customer's mobile terminal and the central control system through the communication module 7.

[0107] This embodiment introduces infrared thermal imaging, which significantly improves the system's visual diagnostic capabilities, operational response speed, and information transparency, as mainly demonstrated below:

[0108] Compared to traditional temperature threshold alarms, infrared thermal images can fully present information such as the distribution range, gradient changes, and hotspot locations of temperature anomalies;

[0109] Users can clearly distinguish between single-point overheating (such as at a terminal) and large-area high temperature (such as cable short circuit or busbar abnormality), thereby improving users' intuitive perception of fire level and risk distribution.

[0110] Infrared images, as an important component of alarm data, can provide remote fire situation assessment basis for on-duty personnel, inspection personnel, or dispatch centers after being uploaded through communication module 7; they can also be presented intuitively in remote platforms or apps to help non-professionals understand the fire situation.

[0111] Example 5

[0112] Reference Figure 2 Electrical cabinet monitoring and fire suppression equipment also includes:

[0113] Dual-channel differential smoke sensor 10;

[0114] The dual-channel differential smoke sensor 10 is connected to the controller 5 and is installed inside the electrical cabinet;

[0115] The dual-channel differential smoke sensor 10 has two channels for monitoring different types of smoke, and the two channels are set with different smoke trigger thresholds;

[0116] The dual-channel differential smoke sensor 10 is used to send smoke alarm information to the controller 5 when either channel triggers a threshold alarm.

[0117] When the controller 5 receives a smoke alarm message, it controls the local alarm module 6 to sound an alarm; it also sends alarm messages to the customer's mobile terminal and the central control system through the communication module 7.

[0118] Specifically, the first channel of the dual-channel differential smoke sensor 10 is used to monitor and absorb dominant particulate smoke, with a trigger threshold of ≤0.3dB / m;

[0119] The second channel of the dual-channel differential smoke sensor 10 is used to monitor scattering-dominant particulate smoke, with a trigger threshold of ≥1.0dB / m.

[0120] Dominant particulate smoke, commonly known as "black fog," and scattering-dominant particulate smoke, commonly known as "white fog," are distinct. Black fog typically corresponds to incomplete combustion (such as cable fires or arc short circuits, accompanied by soot) and has strong absorption; white fog is more likely to be water vapor, combustion products of plastics, or volatiles from overheated equipment, and has higher scattering properties. The dual-channel differential smoke sensor 10, based on the principle of light scattering, distinguishes between particles with a diameter of 0.01-10μm. It features independent threshold settings for both channels (black fog threshold ≤ 0.3dB / m, white fog threshold ≥ 1.0dB / m).

[0121] This claim improves the ability to identify different types of smoke (such as black fog and white fog) by introducing a dual-channel differential smoke sensor 10, and combines it with the controller 5, the local alarm module 6 and the communication module 7 to realize a comprehensive processing mechanism of accurate perception of multiple types of smoke, hierarchical response and multi-channel notification.

[0122] The dual-channel differential smoke sensor 10 is installed inside the electrical cabinet to sense combustible / non-combustible smoke particles in the air inside the cabinet. It contains two channels, each targeting different optical bands (such as infrared and visible light, or two different scattering angles). The two channels are set with different trigger thresholds to adapt to their recognition capabilities and environmental adaptability.

[0123] Controller 5 response logic:

[0124] If any channel triggers the threshold, it is considered a smoke alarm. The controller 5 activates the local alarm module 6 (audio and visual prompt) and simultaneously reports the alarm information to the customer's mobile terminal and the central control system through the communication module 7.

[0125] Preferably, smoke data is incorporated into the linkage logic to construct a multi-source fire detection mechanism.

[0126] Smoke data is fused with existing temperature, ultraviolet / infrared spectroscopy, and other sensor data to form a multimodal information fusion judgment. Controller 5 can judge the severity of the fire by combining smoke, temperature, and spectral information, and realize graded processing (such as alarm first and then fire extinguishing vs. direct fire extinguishing).

[0127] Preferably, the dual-channel differential smoke sensor 10 incorporates a humidity compensation algorithm.

[0128] Example 6

[0129] It should be noted that the fire extinguishing device 4 includes:

[0130] Aerosol fire extinguishing device 4, and / or, gas sprinkler system.

[0131] When a fire source appears inside the electrical cabinet, the controller 5 analyzes the risk level and controls the corresponding fire extinguishing device 4 to start according to the risk level.

[0132] Aerosol fire extinguishing device 4:

[0133] Aerosol particles (such as potassium carbonate) are used to suppress free radical reactions in the flame;

[0134] Commonly used in enclosed spaces, such as inside electrical cabinets;

[0135] No high-pressure pipeline is required; the structure is compact and can be embedded.

[0136] It is non-conductive and suitable for extinguishing fires involving electricity.

[0137] Gas spray system:

[0138] Clean gases such as carbon dioxide, heptafluoropropane (FM200), and Novec 1230;

[0139] Suitable for larger or semi-open spaces (such as electrical rooms and control cabinet groups);

[0140] The fire extinguishing agent is released to the designated area through the pipeline network, which has a high fire extinguishing efficiency, but has a low tolerance for accidental triggering.

[0141] In this embodiment, the controller 5 comprehensively assesses the fire risk level after integrating the sensing results (such as temperature field, infrared / ultraviolet spectrum, and smoke concentration); for example:

[0142] Low risk: only temperature rise, slight smoke, warning or aerosol triggering;

[0143] Medium to high risk: Strong infrared / ultraviolet signals, significant temperature rise, dual-channel smoke triggering, start of gas spray system;

[0144] Alternatively, both can be launched together to form supplementary coverage.

[0145] Controller 5 can select and activate the corresponding fire extinguishing system according to the preset risk level mapping table, thereby enhancing the system's adaptability to different application scenarios.

[0146] Example 7

[0147] Reference Figure 2 Electrical cabinet monitoring and fire suppression equipment also includes:

[0148] Data exchange interface 11;

[0149] Data exchange interface 11 connects to controller 5;

[0150] The controller 5 exchanges data with external devices through the data exchange interface 11.

[0151] This technical solution introduces a data exchange interface 11 to enable data interaction between the electrical cabinet monitoring and fire extinguishing equipment and external systems, thereby enhancing the system's openness, integration, and platform compatibility.

[0152] The data exchange interface 11 is connected to the controller 5 and is used to exchange internal data of the device with external systems. It can adopt a variety of industrial standard interfaces, such as RS-485 / RS-232 serial interface, CAN bus or Ethernet port (RJ45), USB, etc.

[0153] This interface allows the collected monitoring data (temperature, smoke concentration, spectral signals, images, etc.) to be sent to an external data acquisition terminal.

[0154] This interface can also receive external commands, such as querying the current status, setting alarm thresholds, manually triggering fire suppression actions, and issuing firmware upgrade / policy update commands.

[0155] It is understood that the same or similar parts in the above embodiments can be referred to each other, and the contents not described in detail in some embodiments can be referred to the same or similar contents in other embodiments.

[0156] It should be noted that in the description of this application, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, in the description of this application, unless otherwise stated, "a plurality of" means at least two.

[0157] Furthermore, the functional units in the various embodiments of this application can be integrated into a processing module, or each unit can exist physically separately, or two or more units can be integrated into a module. The integrated module can be implemented in hardware or as a software functional module. If the integrated module is implemented as a software functional module and sold or used as an independent product, it can also be stored in a computer-readable storage medium.

[0158] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0159] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. An electrical cabinet monitoring and fire extinguishing device, characterized in that, include: Infrared temperature sensors, ultraviolet light sensors, infrared light sensors, fire extinguishing devices and controllers; The infrared temperature sensor, ultraviolet light sensor, infrared light sensor, and fire extinguishing device are all connected to the controller; The infrared temperature sensor is installed inside the electrical cabinet and is used to scan the surface temperature field distribution inside the electrical cabinet. The ultraviolet light sensor is installed inside the electrical cabinet and is used to collect the ultraviolet spectrum inside the electrical cabinet. The infrared light sensor is installed inside the electrical cabinet and is used to collect the infrared spectrum inside the electrical cabinet. The controller is used to control the activation of the fire extinguishing device.

2. The electrical cabinet monitoring and fire extinguishing equipment according to claim 1, characterized in that, Also includes: Local alarm module; The local alarm module is connected to the controller; The local alarm module includes a sound alarm and a light alarm.

3. The electrical cabinet monitoring and fire extinguishing equipment according to claim 2, characterized in that, Also includes: Communication module; The communication module is connected to the controller and wirelessly connected to the client's mobile terminal.

4. The electrical cabinet monitoring and fire extinguishing equipment according to claim 3, characterized in that, Also includes: Positioning module; The positioning module is connected to the controller; The communication module is connected to the central control system via wired / wireless communication.

5. The electrical cabinet monitoring and fire extinguishing equipment according to claim 4, characterized in that, Also includes: Infrared thermal imaging sensor; The infrared thermal imaging sensor is connected to the controller and is installed inside the electrical cabinet. The infrared thermal imaging sensor is used to acquire infrared images of the interior of the electrical cabinet.

6. The electrical cabinet monitoring and fire extinguishing equipment according to claim 4, characterized in that, Also includes: Dual-channel differential smoke sensor; The dual-channel differential smoke sensor is connected to the controller and is installed inside the electrical cabinet; The two channels of the dual-channel differential smoke sensor are used to monitor different types of smoke, and the two channels are set with different smoke trigger thresholds; The dual-channel differential smoke sensor is used to send smoke alarm information to the controller when either channel triggers a threshold alarm.

7. The electrical cabinet monitoring and fire extinguishing equipment according to claim 1, characterized in that, The fire extinguishing device includes: Aerosol fire extinguishing devices, and / or gas sprinkler systems.

8. The electrical cabinet monitoring and fire extinguishing equipment according to claim 1, characterized in that, Also includes: Data exchange interface; The data exchange interface is connected to the controller.

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