Electrical cabinet monitoring and fire extinguishing equipment

Abstract

The invention relates to monitoring and fire extinguishing equipment for an electrical cabinet. The monitoring and fire extinguishing equipment comprises an infrared area temperature sensor, an ultraviolet light sensor, an infrared light sensor, a fire extinguishing device and a controller. The infrared surface area temperature sensor scans the surface area temperature field in the cabinet in real time, and surface area monitoring replaces a point-type probe, so that the coverage capability and the early warning precision are improved, and the blind area and the probability of missed detection are reduced. When the temperature of a certain area exceeds a preset temperature threshold value, the controller judges that the temperature is abnormal, the ultraviolet light sensor and the infrared light sensor collect an ultraviolet band spectrum and an infrared band spectrum in the electrical cabinet at the moment, the characteristic spectrum of real flames can be recognized, misinformation caused by non-fire factors is avoided, and accurate recognition of the fire is enhanced. When a fire source appears in the electrical cabinet, the controller can complete accurate decision making and be linked with automatic fire extinguishing equipment without human intervention, it is ensured that intervention is completed at the initial stage of the fire, and the accident loss and diffusion risk are remarkably reduced.

Description

Technical Field

[0001] The present application relates to the technical field of fire alarm equipment, and in particular to an electrical cabinet monitoring and fire extinguishing device. Background Art

[0002] In the industrial field, distribution cabinets and electrical cabinets are prone to fire accidents due to hidden dangers such as circuit aging, short circuit, and overload. In addition, the initial fire is highly concealed and spreads quickly.

[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 abnormal temperature fields across the entire surface, resulting in a high risk of missed detection.

[0005] 2. Frequent false alarms from a single sensor: When relying on a single smoke or light detection, it is susceptible to interference from environmental dust, water vapor, equipment arcing, etc., leading to false alarms;

[0006] 3. Delayed emergency response: Manual inspections or traditional fire-fighting equipment are difficult to intervene in time at the early stage of a fire (smoldering stage), and the risk of personnel handling in a high-pressure environment is prominent. Summary of the Invention

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

[0008] The scheme of this application is as follows:

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

[0010] Infrared area temperature sensor, ultraviolet light sensor, infrared light sensor, fire extinguishing device and controller;

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

[0012] The infrared regional temperature sensor is arranged inside the electrical cabinet, and is used to scan the surface temperature field distribution inside the electrical cabinet, and send the scanning result to the controller;

[0013] The ultraviolet light sensor is arranged inside the electrical cabinet, and is used to collect the ultraviolet band spectrum inside the electrical cabinet when receiving a collection instruction, and send the collected ultraviolet band spectrum to the controller;

[0014] The infrared light sensor is arranged inside the electrical cabinet, and is used to collect the infrared band spectrum inside the electrical cabinet when receiving a collection instruction, and send the collected infrared band spectrum to the controller;

[0015] The controller is used to determine whether the temperature inside the electrical cabinet exceeds a preset temperature threshold based on the scanning result of the infrared domain temperature sensor; when the temperature inside the electrical cabinet exceeds the preset temperature threshold, send a collection instruction to the ultraviolet light sensor and the infrared light sensor;

[0016] The controller also determines whether a fire source appears inside the electrical cabinet based on the ultraviolet band spectrum and the infrared band spectrum; when a fire source appears inside the electrical cabinet, the controller controls the fire extinguishing device to start.

[0017] Preferably, the electrical cabinet monitoring and fire extinguishing equipment also includes:

[0018] Local alarm module;

[0019] The local alarm module is connected to the controller;

[0020] The local alarm module includes a sound alarm and a light alarm;

[0021] When a fire source occurs inside the electrical cabinet, the controller controls the local alarm module to sound an alarm.

[0022] Preferably, the electrical cabinet monitoring and fire extinguishing equipment also includes:

[0023] Communication module;

[0024] The communication module is connected to the controller and is connected to the client mobile terminal via wireless communication;

[0025] When a fire source occurs inside the electrical cabinet, the controller sends an alarm message to the client's mobile terminal through the communication module.

[0026] Preferably, the electrical cabinet monitoring and fire extinguishing equipment also includes:

[0027] Positioning module;

[0028] The positioning module is connected to the controller;

[0029] The communication module is connected to the central control system via wired / wireless communication;

[0030] The controller obtains current positioning information through the positioning module, and sends alarm information and current positioning information to the client mobile terminal and the central control system through the communication module.

[0031] Preferably, the electrical cabinet monitoring and fire extinguishing equipment also includes:

[0032] Infrared thermal imaging sensor;

[0033] The infrared thermal imaging sensor is connected to the controller and is arranged inside the electrical cabinet;

[0034] When the temperature inside the electrical cabinet exceeds a preset temperature threshold, the controller sends a collection instruction to the infrared thermal imaging sensor;

[0035] The infrared thermal imaging sensor is used to collect infrared images inside the electrical cabinet when receiving a collection instruction, and send the collected infrared images to the controller;

[0036] The controller sends the infrared image to the client mobile terminal and the central control system through the communication module.

[0037] Preferably, the electrical cabinet monitoring and fire extinguishing equipment also includes:

[0038] Dual-channel differential smoke sensor;

[0039] The dual-channel differential smoke sensor is connected to the controller and is arranged inside the electrical cabinet;

[0040] The two channels of the dual-channel differential smoke sensor are used to monitor different smoke types, and different smoke trigger thresholds are set for the two channels;

[0041] The dual-channel differential smoke sensor is used to send smoke alarm information to the controller when a threshold alarm is triggered on any channel;

[0042] The controller controls the local alarm module to sound an alarm upon receiving the smoke alarm information; and also sends the alarm information to the client mobile terminal and the central control system through the communication module.

[0043] Preferably, the first channel of the dual-channel differential smoke sensor is used to monitor absorption-dominated particulate smoke, and the triggering threshold is ≤0.3dB / m;

[0044] The second channel of the dual-channel differential smoke sensor is used to monitor scattering-dominated particulate smoke, and the triggering threshold is ≥1.0dB / m.

[0045] Preferably, the fire extinguishing device comprises:

[0046] Aerosol fire extinguishing equipment, and / or, gas sprinkler system.

[0047] Preferably, when a fire source occurs inside the electrical cabinet, the controller analyzes the risk level and controls the corresponding fire extinguishing device to start according to the risk level.

[0048] Preferably, the electrical cabinet monitoring and fire extinguishing equipment also includes:

[0049] Data exchange interface;

[0050] The data exchange interface is connected to the controller;

[0051] The controller exchanges data with an external device through the data exchange interface.

[0052] The technical solution provided by this application may have the following beneficial effects:

[0053] In this technical solution, infrared regional temperature sensors are used to scan the surface temperature field inside the cabinet in real time. The infrared regional temperature sensors can provide a heat distribution map of the entire cabinet. Surface monitoring replaces point probes, improving coverage and early warning accuracy, and realizing an upgrade from "point monitoring" to "surface monitoring", significantly reducing blind spots and the probability of missed detection, and improving system perception resolution.

[0054] When the temperature in a certain area exceeds the preset temperature threshold (such as 80°C), the controller determines it as abnormal. At this time, the ultraviolet band spectrum and infrared band spectrum inside the electrical cabinet are collected through the ultraviolet sensor and infrared sensor. The combination of ultraviolet and infrared sensors can identify the characteristic spectrum of real flames (such as UV transients of sparks and IR radiation of combustion), 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 flames.

[0055] Based on multi-dimensional thresholds and feature judgments, the controller can determine whether a fire source has appeared inside the electrical cabinet. When a fire source appears inside the electrical cabinet, it can make accurate decisions without human intervention and work in conjunction with automatic fire extinguishing equipment to ensure intervention in the early stages of the fire, significantly reducing accident losses and the risk of spread.

[0056] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0057] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0058] Figure 1 This is a structural diagram of an electrical cabinet monitoring and fire extinguishing device provided by one embodiment of the present application;

[0059] Figure 2 This is a structural diagram of an electrical cabinet monitoring and fire extinguishing device provided in another embodiment of the present application.

[0060] Reference numerals: infrared ambient 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 DESCRIPTION

[0061] Exemplary embodiments will be described in detail herein, with examples illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numerals in different figures represent identical or similar elements, unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.

[0062] Example 1

[0063] Figure 1 This is a schematic diagram of the structure of an electrical cabinet monitoring and fire extinguishing device provided by an embodiment of the present application, referring to Figure 1 , an electrical cabinet monitoring and fire extinguishing device, comprising:

[0064] Infrared area temperature sensor 1, ultraviolet light sensor 2, infrared light sensor 3, fire extinguishing device 4 and controller 5;

[0065] The infrared area temperature sensor 1, the ultraviolet light sensor 2, the infrared light sensor 3, and the fire extinguishing device 4 are all connected to the controller 5;

[0066] The infrared regional temperature sensor 1 is arranged inside the electrical cabinet and is used to scan the surface temperature field distribution inside the electrical cabinet and send the scanning result to the controller 5;

[0067] The ultraviolet light sensor 2 is arranged inside the electrical cabinet, and is used to collect the ultraviolet band spectrum inside the electrical cabinet when receiving a collection instruction, and send the collected ultraviolet band spectrum to the controller 5;

[0068] The infrared light sensor 3 is arranged inside the electrical cabinet, and is used to collect the infrared band spectrum inside the electrical cabinet when receiving a collection instruction, and send the collected infrared band spectrum to the controller 5;

[0069] The controller 5 is used to determine whether the temperature inside the electrical cabinet exceeds a 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 instruction to the ultraviolet light sensor 2 and the infrared light sensor 3;

[0070] The controller 5 also determines whether a fire source appears inside the electrical cabinet based on the ultraviolet spectrum and the infrared spectrum; when a fire source appears inside the electrical cabinet, the controller 5 controls the fire extinguishing device 4 to start.

[0071] During implementation, the infrared local temperature sensor 1 scans the temperature distribution inside the electrical cabinet in real time, generating a thermal image with a detection accuracy of ±0.1°C and a pixel resolution of 256 x 192. This sensor provides comprehensive monitoring coverage, supports temperature gradient analysis and historical data tracing, and proactively identifies local overheating trends.

[0072] UV Sensor 2 and Infrared Sensor 3 simultaneously collect information from the UV band (flame characteristic spectrum) and the infrared band (thermal radiation signal), with a response time of less than 50ms. UV Sensor 2 and Infrared Sensor 3 utilize independent dual-spectrum calibration and a built-in adaptive filtering algorithm to effectively eliminate interference from sunlight, equipment light sources, and other sources.

[0073] In this technical solution, the infrared regional temperature sensor 1 is used to scan the surface temperature field inside the cabinet in real time. The infrared regional temperature sensor 1 can provide a heat distribution map of the entire cabinet. Surface monitoring replaces point probes, improving coverage capability and early warning accuracy, realizing the upgrade from "point monitoring" to "surface monitoring", significantly reducing blind spots and missed detection probability, and improving system perception resolution.

[0074] When the temperature in a certain area exceeds a preset temperature threshold (such as 80°C), the controller 5 determines it as abnormal. At this time, the ultraviolet band spectrum and infrared band spectrum inside the electrical cabinet are collected through the ultraviolet sensor 2 and the infrared sensor 3. The combination of ultraviolet and infrared sensors can identify the characteristic spectrum of real flames (such as UV transients of sparks and IR radiation of combustion), 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 flames.

[0075] Based on multi-dimensional thresholds and feature judgments, controller 5 can determine whether a fire source appears inside the electrical cabinet. When a fire source appears inside the electrical cabinet, it can make accurate decisions without human intervention and work in conjunction with automatic fire extinguishing equipment to ensure that intervention is completed in the early stages of the fire, significantly reducing accident losses and the risk of spread.

[0076] Example 2

[0077] Reference Figure 2 , electrical cabinet monitoring and fire extinguishing equipment also includes:

[0078] Local alarm module 6;

[0079] The local alarm module 6 is connected to the controller 5;

[0080] The local alarm module 6 includes a sound alarm and a light alarm;

[0081] When a fire source occurs inside the electrical cabinet, the controller 5 controls the local alarm module 6 to sound an alarm.

[0082] The local alarm module 6 includes:

[0083] Sound alarm (such as buzzer, alarm horn, etc.): emits high-decibel sound;

[0084] Light alarm (such as red warning light, strobe light, etc.): emits a bright flash.

[0085] The working logic is as follows:

[0086] The controller 5 determines that a fire source has occurred inside the electrical cabinet (double confirmation by temperature and spectrum), and sends a trigger instruction to the local alarm module 6. The local alarm module 6 alerts the surrounding personnel through synchronous sound and light output, and is executed synchronously or in advance with the fire extinguishing device 4, which helps personnel evacuation, on-duty personnel response or power-off operation.

[0087] Local alarm equipment can directly issue fire alerts to nearby guards or operators without the need for network connection or remote platform response. This is particularly important in environments with limited network or communication (such as substations and distribution box rooms far away from the control center). The audio and visual prompts are consistent with normal operating habits in industrial sites, and the alarm intent can be quickly understood without professional training.

[0088] Example 3

[0089] Reference Figure 2 , electrical cabinet monitoring and fire extinguishing equipment, also includes:

[0090] Communication module 7;

[0091] The communication module 7 is connected to the controller 5 and is connected to the client mobile terminal via wireless communication;

[0092] When a fire source occurs inside the electrical cabinet, the controller 5 sends an alarm message to the client's mobile terminal through the communication module 7.

[0093] This claim further introduces a remote communication mechanism based on the "local sound and light alarm" to achieve remote synchronous push and response of abnormal equipment status, forming a remote early warning and notification system.

[0094] 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 client mobile terminal, such as mobile phone App, WeChat applet, SMS receiving platform, etc.

[0095] Controller 5 sends logic:

[0096] When a fire source appears inside the electrical cabinet (confirmed as a fire by infrared temperature and spectrum analysis), the controller 5 triggers the communication module 7, and the communication module 7 sends the fire information / alarm content to the bound client mobile terminal.

[0097] The introduction of the communication module 7 enables remote and immediate alarms, improving response coverage. Without the need for on-site confirmation by on-duty personnel, the status of the electrical cabinet can be immediately understood using only a mobile terminal.

[0098] Suitable for the following scenarios:

[0099] Unmanned distribution rooms, environments where personnel are not permanently stationed, such as at night, on holidays, and in remote locations.

[0100] Furthermore, it also includes:

[0101] Positioning module 8;

[0102] The positioning module 8 is connected to the controller 5;

[0103] Communication module 7 is connected to the central control system via wired / wireless communication;

[0104] The controller 5 obtains the current positioning information through the positioning module 8 and sends the alarm information and the current positioning information to the client mobile terminal and the central control system through the communication module 7.

[0105] The positioning module 8 can be implemented based on technologies such as GPS, Beidou (applicable to outdoor electrical cabinets), or UWB, Bluetooth positioning, Wi-Fi positioning (applicable to indoor environments).

[0106] The communication module 7 also communicates with the central control system and can transmit structured data, including alarm status, fire level, positioning coordinates, etc.

[0107] Controller 5 behavior logic:

[0108] When a fire source occurs 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.

[0109] When a fire occurs, the system can not only upload multiple devices’ alarms, but also the exact location (such as GPS coordinates or relative coordinates within the factory);

[0110] The central control platform can accurately mark alarm points on maps / floor plans / 3D models, guiding firefighters on duty to quickly reach the corresponding locations. This is especially critical in multi-device deployment scenarios.

[0111] Example 4

[0112] Reference Figure 2 , electrical cabinet monitoring and fire extinguishing equipment also includes:

[0113] Infrared thermal imaging sensor 9;

[0114] The infrared thermal imaging sensor 9 is connected to the controller 5 and is set inside the electrical cabinet;

[0115] When the temperature inside the electrical cabinet exceeds a preset temperature threshold, the controller 5 sends a collection instruction to the infrared thermal imaging sensor 9;

[0116] The infrared thermal imaging sensor 9 is used to collect infrared images inside the electrical cabinet when receiving a collection instruction, and send the collected infrared images to the controller 5;

[0117] The controller 5 sends the infrared image to the client mobile terminal and the central control system through the communication module 7.

[0118] The infrared thermal imaging function introduced in this embodiment significantly improves the system's visual diagnostic capabilities, operation and maintenance response speed, and information transparency, as shown in the following:

[0119] Compared with traditional temperature threshold alarms, infrared thermal images can fully present information such as the distribution range, gradient changes, and hotspot locations of temperature anomalies;

[0120] Users can clearly identify whether it is a single point overheating (such as a wiring terminal) or a large area of ​​high temperature (such as a cable short circuit or busbar abnormality), thereby improving the user's intuitive perception of fire level and risk distribution.

[0121] As an important component of alarm data, infrared images can provide a basis for remote fire assessment for on-duty personnel, patrol personnel or the dispatch center after being uploaded through the communication module 7. They can be intuitively presented on the remote platform or App to assist non-professionals in understanding the fire situation.

[0122] Example 5

[0123] Reference Figure 2 , electrical cabinet monitoring and fire extinguishing equipment also includes:

[0124] Dual-channel differential smoke sensor 10;

[0125] The dual-channel differential smoke sensor 10 is connected to the controller 5 and is set inside the electrical cabinet;

[0126] The two channels of the dual-channel differential smoke sensor 10 are used to monitor different smoke types, and different smoke trigger thresholds are set for the two channels;

[0127] The dual-channel differential smoke sensor 10 is used to send smoke alarm information to the controller 5 when any channel triggers a threshold alarm;

[0128] When receiving the smoke alarm information, the controller 5 controls the local alarm module 6 to sound an alarm; it also sends the alarm information to the client mobile terminal and the central control system through the communication module 7.

[0129] Specifically, the first channel of the dual-channel differential smoke sensor 10 is used to monitor absorption-dominated particulate smoke, with a trigger threshold of ≤0.3 dB / m;

[0130] The second channel of the dual-channel differential smoke sensor 10 is used to monitor scattering-dominated particulate smoke, and the triggering threshold is ≥1.0 dB / m.

[0131] Dominant particle smoke is commonly known as "black fog," while scattering-dominated particle smoke is commonly known as "white fog." Black fog typically corresponds to incomplete combustion (such as cable fires, arc shorts, and associated soot) and is highly absorptive. White fog is more likely water vapor, plastic combustion products, or volatiles from overheated equipment and is more scattering. The dual-channel differential smoke sensor 10 uses the principle of light scattering to distinguish particles between 0.01-10μm in size. Independent threshold settings are set for both channels (black fog threshold ≤ 0.3dB / m, white fog threshold ≥ 1.0dB / m).

[0132] 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 the controller 5, local alarm module 6 and communication module 7 to realize a comprehensive processing mechanism of accurate perception of multiple types of smoke + graded response + multi-channel notification.

[0133] 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 a different optical band (such as infrared and visible light, or two different scattering angles). Different trigger thresholds are set for the two channels to adapt their recognition capabilities and environmental adaptability.

[0134] Controller 5 response logic:

[0135] If any channel triggers the threshold, it is identified as a smoke alarm. The controller 5 starts the local alarm module 6 (sound and light prompts) and simultaneously reports the alarm information to the customer mobile terminal and the central control system through the communication module 7.

[0136] Preferably, smoke data is incorporated into the linkage logic to build a multi-source fire perception mechanism.

[0137] The smoke data is combined with the original temperature, ultraviolet / infrared spectrum and other sensors to form a multimodal information fusion judgment. The controller 5 can judge the severity of the fire through the combination of smoke + temperature + spectrum information and implement hierarchical processing (such as alarm first and then extinguish the fire vs. direct fire extinguishing).

[0138] Preferably, the dual-channel differential smoke sensor 10 has a built-in humidity compensation algorithm.

[0139] Example 6

[0140] It should be noted that the fire extinguishing device 4 includes:

[0141] Aerosol fire extinguishing device 4, and / or, gas sprinkler system.

[0142] 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.

[0143] Aerosol fire extinguishing device 4:

[0144] Use aerosol particles (such as potassium carbonate) to inhibit free radical reactions in flames;

[0145] Often used in enclosed spaces, such as inside electrical cabinets;

[0146] No high-pressure pipe network is required, the structure is compact and can be installed in an embedded manner;

[0147] Non-conductive, suitable for live fire extinguishing.

[0148] Gas spray system:

[0149] Such as carbon dioxide, heptafluoropropane (FM200), Novec 1230 and other clean gases;

[0150] Suitable for larger or semi-open spaces (such as electrical rooms and control cabinets);

[0151] The fire extinguishing agent is released to the designated area through the pipeline network, which has high fire extinguishing efficiency but low tolerance for false triggering.

[0152] In this embodiment, the controller 5 evaluates the fire risk level after integrating the sensing results (such as temperature field, infrared / ultraviolet spectrum, and smoke concentration); for example:

[0153] Low risk: only temperature rise, slight smoke, warning or triggering of aerosol;

[0154] Medium to high risk: strong infrared / ultraviolet signals, significant temperature rise, dual-channel smoke triggering, and activation of the gas spray system;

[0155] Or both can be launched jointly to form complementary coverage.

[0156] The controller 5 can select and start the corresponding fire extinguishing system according to the preset risk level mapping table, thereby enhancing the system's adaptability to different application scenarios.

[0157] Example 7

[0158] Reference Figure 2 , electrical cabinet monitoring and fire extinguishing equipment also includes:

[0159] Data exchange interface 11;

[0160] The data exchange interface 11 is connected to the controller 5;

[0161] The controller 5 exchanges data with external devices through the data exchange interface 11 .

[0162] This technical solution realizes data interaction between the electrical cabinet monitoring and fire extinguishing equipment and the external system by introducing the data exchange interface 11, thereby enhancing the openness, integration and platform compatibility of the system.

[0163] The data exchange interface 11 is connected to the controller 5 and is used to exchange internal data of the device with the external system. 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.

[0164] The collected monitoring data (temperature, smoke concentration, spectral signals, images, etc.) can be sent to an external data acquisition terminal through this interface.

[0165] External commands can also be received through this interface, such as querying the current status, setting alarm thresholds, manually triggering fire extinguishing actions, and issuing firmware upgrade / policy update commands.

[0166] It can be understood that the same or similar parts of the above embodiments can be referenced to each other, and the contents not described in detail in some embodiments can refer to the same or similar contents in other embodiments.

[0167] 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 understood as indicating or implying relative importance. In addition, in the description of this application, unless otherwise specified, the meaning of "plurality" refers to at least two.

[0168] In addition, the functional units in the various embodiments of the present application may be integrated into a processing module, or each unit may exist physically separately, or two or more units may be integrated into a module. The above-mentioned integrated module may be implemented in the form of hardware or in the form of a software functional module. If the integrated module is implemented in the form of a software functional module and sold or used as an independent product, it may also be stored in a computer-readable storage medium.

[0169] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "examples," "specific examples," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations 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 any one or more embodiments or examples.

[0170] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. An electrical cabinet monitoring and fire extinguishing device, characterized in that: include: Infrared area temperature sensor, ultraviolet light sensor, infrared light sensor, fire extinguishing device and controller; The infrared area temperature sensor, ultraviolet light sensor, infrared light sensor, and fire extinguishing device are all connected to the controller; The infrared regional temperature sensor is arranged inside the electrical cabinet, and is used to scan the surface temperature field distribution inside the electrical cabinet, and send the scanning result to the controller; The ultraviolet light sensor is arranged inside the electrical cabinet, and is used to collect the ultraviolet band spectrum inside the electrical cabinet when receiving a collection instruction, and send the collected ultraviolet band spectrum to the controller; The infrared light sensor is arranged inside the electrical cabinet, and is used to collect the infrared band spectrum inside the electrical cabinet when receiving a collection instruction, and send the collected infrared band spectrum to the controller; The controller is used to determine whether the temperature inside the electrical cabinet exceeds a preset temperature threshold based on the scanning result of the infrared domain temperature sensor; when the temperature inside the electrical cabinet exceeds the preset temperature threshold, send a collection instruction to the ultraviolet light sensor and the infrared light sensor; The controller also determines whether a fire source appears inside the electrical cabinet based on the ultraviolet band spectrum and the infrared band spectrum; when a fire source appears inside the electrical cabinet, the controller controls the fire extinguishing device to start.

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; When a fire source occurs inside the electrical cabinet, the controller controls the local alarm module to sound an 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 is connected to the client mobile terminal via wireless communication; When a fire source occurs inside the electrical cabinet, the controller sends an alarm message to the client's mobile terminal through the communication module.

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; The controller obtains current positioning information through the positioning module, and sends alarm information and current positioning information to the client mobile terminal and the central control system through the communication module.

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 arranged inside the electrical cabinet; When the temperature inside the electrical cabinet exceeds a preset temperature threshold, the controller sends a collection instruction to the infrared thermal imaging sensor; The infrared thermal imaging sensor is used to collect infrared images inside the electrical cabinet when receiving a collection instruction, and send the collected infrared images to the controller; The controller sends the infrared image to the client mobile terminal and the central control system through the communication module.

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 arranged inside the electrical cabinet; The two channels of the dual-channel differential smoke sensor are used to monitor different smoke types, and different smoke trigger thresholds are set for the two channels; The dual-channel differential smoke sensor is used to send smoke alarm information to the controller when a threshold alarm is triggered on any channel; The controller controls the local alarm module to sound an alarm upon receiving the smoke alarm information; and also sends the alarm information to the client mobile terminal and the central control system through the communication module.

7. The electrical cabinet monitoring and fire extinguishing equipment according to claim 6, characterized in that: The first channel of the dual-channel differential smoke sensor is used to monitor absorption-dominated particulate smoke, with a trigger threshold of ≤0.3dB / m; The second channel of the dual-channel differential smoke sensor is used to monitor scattering-dominated particulate smoke, and the triggering threshold is ≥1.0dB / m.

8. The electrical cabinet monitoring and fire extinguishing equipment according to claim 1, characterized in that: The fire extinguishing device comprises: Aerosol fire extinguishing equipment, and / or, gas sprinkler system.

9. The electrical cabinet monitoring and fire extinguishing equipment according to claim 8, characterized in that: When a fire source occurs inside the electrical cabinet, the controller analyzes the risk level and controls the corresponding fire extinguishing device to start according to the risk level.

10. 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; The controller exchanges data with an external device through the data exchange interface.

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