Transformer substation fire positioning and water mist fire extinguishing system and method based on airspace outlier analysis

Abstract

The invention belongs to the technical field of substation fire management, and particularly relates to a substation fire positioning and water mist fire extinguishing system and method based on airspace outlier analysis. The transformer substation fire positioning and water mist fire extinguishing system based on airspace outlier analysis comprises an infrared thermal field monitoring device and a high-pressure water mist fire extinguishing device, wherein the infrared thermal field monitoring device is used for carrying out real-time patrol monitoring on the surface temperature of equipment in a transformer substation; the high-pressure water mist fire extinguishing device comprises a foam proportioning mixer and a vortex umbrella foam water mist fire extinguishing device arranged on a stand, and the high-pressure water mist fire extinguishing device is used for cooling and extinguishing equipment in the transformer substation; the infrared thermal field monitoring device and the high-pressure water mist fire extinguishing device are used for achieving fire positioning, efficient fire extinguishing and fire prevention, a heating point can be accurately found in the early stage of the fire, rapid cooling is achieved to prevent the fire, and accurate, efficient and harmless fire extinguishing can be conducted after the fire happens.

Description

Technical Field

[0001] The present invention belongs to the technical field of substation fire management, and in particular relates to a substation fire location and water mist fire extinguishing system and method based on airspace outlier analysis. Background Art

[0002] Substations are key components of power systems, responsible for converting and transmitting electrical energy. Due to the nature of electrical equipment, substations present fire risks. Once a fire occurs, it can cause severe power outages, equipment damage, environmental pollution, and even loss of life and property. Therefore, effective fire protection and extinguishing systems play a vital role in substations.

[0003] Most substation fires are caused by accumulated heat, making effective monitoring devices and auxiliary cooling systems with minimal collateral damage crucial for fire prevention. Currently, most substation firefighting systems utilize water spray / SP foam spray. These systems are connected to the station's fire alarm control cabinet and provide immediate firefighting assistance upon outbreak. However, water spray / SP foam spray is activated upon fire outbreak, but the spray is not precisely targeted at the hot spots or ignition points. Furthermore, firefighting is often best extinguished in the early stages of a fire or initial heating. Therefore, the development of a substation fire location and water mist fire extinguishing system is needed to improve fire location and firefighting capabilities for substation main transformers.

[0004] Chinese patent publication number CN118267656A discloses an unmanned intelligent firefighting system for a substation, comprising a turbofan cannon fire truck, a wireless transmission device, a central control device, and a fire alarm device. The fire alarm device receives a fire signal from a corresponding transformer and forwards it to the central control device. The fire signal and firefighting instructions are then transmitted to the turbofan cannon fire truck via the wireless transmission device. Upon receiving the signal, the turbofan cannon fire truck automatically activates. The automatic driving module drives the fire truck to a preset firefighting point based on the corresponding transformer number. Pressing the automatic fire-seeking button activates the automatic fire-seeking module of the turbofan cannon fire truck and guides the turbofan cannon head to the fire source. The firefighting system in the above technical solution does not accurately locate the fire point, resulting in a slow firefighting response efficiency. Furthermore, the firefighting system only provides post-fire treatment and lacks pre-fire prevention capabilities. Summary of the Invention

[0005] The purpose of the present invention is to overcome the shortcomings of the existing technology and provide a substation fire location and fine water mist fire extinguishing system and method based on airspace outlier analysis. It uses an infrared thermal field monitoring device and a high-pressure fine water mist fire extinguishing device to achieve fire location, efficient fire extinguishing and fire prevention. It can not only accurately detect hot spots in the early stage of a fire and quickly reduce the temperature to prevent the occurrence of a fire, but also accurately, efficiently and harmlessly extinguish the fire after the fire occurs.

[0006] The purpose of the present invention is achieved as follows: a substation fire location and fine water mist fire extinguishing system based on airspace outlier analysis includes an infrared thermal field monitoring device and a high-pressure fine water mist fire extinguishing device, the infrared thermal field monitoring device includes an infrared thermal imaging temperature measurement camera component and a visible light camera component, the infrared thermal field monitoring device is used to perform real-time inspection and monitoring of the surface temperature of equipment in the substation; the high-pressure fine water mist fire extinguishing device includes a foam proportioning mixer and a vortex umbrella foam fine water mist fire extinguishing device arranged on a column, the high-pressure fine water mist fire extinguishing device is used to cool down the equipment in the substation and extinguish fires.

[0007] The infrared thermal field monitoring device and the high-pressure fine water mist fire extinguishing device can be connected to the fire extinguishing management system platform in the substation. Through digital twin and three-dimensional thermal field monitoring technology, uninterrupted field temperature inspection and high-definition video inspection of the main transformer equipment can be realized, and abnormal temperature rise and fire hazards of the main transformer can be analyzed and discovered in time; when a fire is discovered, the fine water mist turbofan cannon fire extinguishing device is automatically controlled according to the three-dimensional spatial coordinates of the fire point and the plan to accurately spray water mist for cooling and fire extinguishing.

[0008] The infrared thermal field monitoring device also includes a rotating platform, on which the infrared thermal imaging temperature measurement camera component and the visible light camera component are arranged; the rotating platform is provided with a vertical motor and a horizontal motor that can enable the rotating platform to achieve horizontal and vertical rotation.

[0009] The high-pressure water mist fire extinguishing device also includes a water pump group and a foam pump group, which are connected to the foam proportioning mixer; the water pump group is provided with a water inlet, and the foam pump group is provided with a foam inlet.

[0010] The high-pressure fine water mist fire extinguishing device also includes a vortex umbrella control cabinet, a pump group control cabinet and a main control cabinet. The vortex umbrella control cabinet is used to control and manage the vortex umbrella foam fine water mist fire extinguishing device, and the pump group control cabinet is used to control and manage the water pump group and the foam pump group. The main control cabinet is connected to the vortex umbrella control cabinet and the pump group control cabinet.

[0011] The substation fire location and water mist fire extinguishing method based on airspace outlier analysis uses the substation fire location and water mist fire extinguishing system based on airspace outlier analysis, including the following steps: S1. Install the infrared thermal field monitoring device on the firewall of the main transformer of the substation to monitor the surface temperature of each component of the main transformer in real time. Install the high-pressure water mist fire extinguishing device on the open ground around the main transformer of the substation. S2. Connecting the infrared thermal field monitoring device and the high-pressure water mist fire extinguishing device to the fire extinguishing management system platform in the substation; S3. Setting an inspection plan for the infrared thermal field monitoring device; S4. The fire extinguishing management system platform receives and analyzes the infrared spectrum photos collected at the patrol preset positions; S5. The fire extinguishing management system platform calibrates temperature anomaly points based on infrared spectrum photos; S6. The fire extinguishing management system platform extinguishes the fire and reduces the temperature through the configured high-pressure fine water mist fire extinguishing device.

[0012] The step S2 of connecting the infrared thermal field monitoring device and the high-pressure water mist fire extinguishing device to the fire extinguishing management system platform in the substation includes: S21. Connecting the infrared thermal field monitoring device to the fire extinguishing management system platform through its SDK, so that the fire extinguishing management system platform can remotely control the infrared thermal field monitoring device; S22. Connecting the high-pressure water mist fire extinguishing device to the fire extinguishing management system platform through the communication protocol of the high-pressure water mist fire extinguishing device; S23. Setting a preset position for main transformer inspection for the infrared thermal field monitoring device through the fire extinguishing management system platform; S24. Configuring a horizontal rotation angle and a vertical pitch angle for the high-pressure water mist fire extinguishing device according to each preset position of the infrared thermal field monitoring device through the fire extinguishing management system platform.

[0013] In the step S3 of setting the inspection plan of the infrared thermal field monitoring device, the inspection plan is to inspect each preset position set by the infrared thermal field monitoring device one by one, and the inspection content of each preset position includes taking photos to collect infrared spectrum photos and visible light photos.

[0014] The fire extinguishing management system platform receives infrared spectrum photos collected at the patrol preset position and performs analysis in step S4, which includes: By analyzing the temperature value of the highest temperature point in the infrared spectrum photo, it is determined whether the temperature value exceeds the threshold. If it does not exceed the threshold, no action is taken. If it exceeds the threshold, the automatic inspection is suspended first, the infrared thermal field monitoring device is stopped at the preset position, and the temperature is measured and photographed again for confirmation.

[0015] The step S5 of the fire extinguishing management system platform calibrating the temperature anomaly point according to the infrared spectrum photo includes: the fire extinguishing management system platform converts the position of the temperature anomaly point in the world coordinate system according to the preset position calibration parameters of the warning and the position of the over-threshold temperature measurement point in the infrared spectrum photo.

[0016] The step S6 of the fire extinguishing management system platform extinguishing the fire and cooling the temperature by using the configured high-pressure water mist fire extinguishing device includes: The fire extinguishing management system platform controls the high-pressure water mist fire extinguishing device to perform corresponding horizontal rotation and vertical pitch through the rotation angle of each preset position of the configured high-pressure water mist fire extinguishing device. After rotating into place, the high-pressure water mist device is remotely controlled to start the fine water mist spraying for cooling and fire extinguishing.

[0017] Beneficial effects of the present invention: The substation fire positioning and fine water mist fire extinguishing system based on airspace outlier analysis of the present invention includes an infrared thermal field monitoring device and a high-pressure fine water mist fire extinguishing device, and the infrared thermal field monitoring device is used to perform real-time patrol monitoring of the surface temperature of the equipment in the substation; the high-pressure fine water mist fire extinguishing device includes a foam proportioning mixer and a vortex umbrella foam fine water mist fire extinguishing device arranged on a column, and the high-pressure fine water mist fire extinguishing device is used to cool down and extinguish the equipment in the substation; the substation fire positioning and fine water mist fire extinguishing method based on airspace outlier analysis includes the following steps: S1, setting the infrared thermal field monitoring device on the firewall of the main transformer of the substation, and setting the high-pressure fine water mist fire extinguishing device on the open ground around the main transformer of the substation; S2, The infrared thermal field monitoring device and the high-pressure fine water mist fire extinguishing device are connected to the fire extinguishing management system platform in the substation; S3, the inspection plan of the infrared thermal field monitoring device is set; S4, the fire extinguishing management system platform receives the infrared spectrum photos collected at the inspection preset position and analyzes them; S5, the fire extinguishing management system platform calibrates the temperature anomaly points according to the infrared spectrum photos; S6, the fire extinguishing management system platform extinguishes the fire and reduces the temperature through the configured high-pressure fine water mist fire extinguishing device; through the above steps, the present invention utilizes the infrared thermal field monitoring device and the high-pressure fine water mist fire extinguishing device to achieve fire positioning, efficient fire extinguishing and fire prevention, which can not only accurately detect hot spots in the early stage of fire, quickly reduce the temperature to prevent fire, but also accurately, efficiently and harmlessly extinguish fire after the fire occurs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 This is a schematic diagram of a high-pressure water mist fire extinguishing device in a substation fire location and water mist fire extinguishing system based on spatial outlier analysis of the present invention.

[0020] Figure 2The figure is a flow chart of the substation fire location and water mist fire extinguishing method based on airspace outlier analysis of the present invention. DETAILED DESCRIPTION

[0021] The present invention will be further described below with reference to the accompanying drawings.

[0022] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0024] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship and movement status between the various components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly. The connection can be a direct connection or an indirect connection.

[0025] like Figure 1-2 As shown, the substation fire location and fine water mist fire extinguishing system based on airspace outlier analysis of the present invention is characterized in that it includes an infrared thermal field monitoring device and a high-pressure fine water mist fire extinguishing device, the infrared thermal field monitoring device includes an infrared thermal imaging temperature measurement camera component and a visible light camera component, the infrared thermal field monitoring device is used to perform real-time inspection and monitoring of the surface temperature of equipment in the substation; the high-pressure fine water mist fire extinguishing device includes a foam proportioning mixer 4 and a vortex umbrella foam fine water mist fire extinguishing device 7 arranged on a column 8, and the high-pressure fine water mist fire extinguishing device is used to cool down and extinguish fires on equipment in the substation.

[0026] The infrared thermal field monitoring device and the high-pressure fine water mist fire extinguishing device can be connected to the fire extinguishing management system platform in the substation. Through digital twin and three-dimensional thermal field monitoring technology, uninterrupted field temperature inspection and high-definition video inspection of the main transformer equipment can be realized, and abnormal temperature rise and fire hazards of the main transformer can be analyzed and discovered in time; when a fire is discovered, the fine water mist turbofan cannon fire extinguishing device is automatically controlled according to the three-dimensional spatial coordinates of the fire point and the plan to accurately spray water mist for cooling and fire extinguishing.

[0027] Furthermore, in one embodiment, the infrared thermal field monitoring device also includes a rotating pan-tilt platform, and the infrared thermal imaging temperature measurement camera component and the visible light camera component are arranged on the rotating pan-tilt platform; the rotating pan-tilt platform is provided with a vertical motor and a horizontal motor that can enable the rotating pan-tilt platform to realize horizontal rotation and vertical rotation, so that the orientation and angle of the infrared thermal imaging temperature measurement camera component and the visible light camera component are adjusted and controlled by the vertical motor and the horizontal motor to perform monitoring and patrol operations on various equipment in the substation.

[0028] Furthermore, in one embodiment, the high-pressure fine water mist fire extinguishing device also includes a water pump group 5 and a foam pump group 6, and the water pump group 5 and the foam pump group 6 are connected to the foam proportioning mixer 4; the water pump group 5 is provided with a water inlet, and the foam pump group 6 is provided with a foam inlet, and the fire extinguishing water and foam enter the water pump group 5 and the foam pump group 6 through the water inlet and the foam inlet respectively, and are pumped to the foam proportioning mixer 4 by the water pump group 5 and the foam pump group 6 for mixing, and then transported to the vortex umbrella foam fine water mist fire extinguishing device 7 arranged on the column 8 through the fire extinguishing hose, and the transformer, high-voltage switch and other equipment in the substation are cooled and extinguished by the vortex umbrella foam fine water mist fire extinguishing device 7.

[0029] Furthermore, in one embodiment, the high-pressure fine water mist fire extinguishing device also includes a vortex umbrella control cabinet 3, a pump group control cabinet 2 and a main control cabinet 1. The vortex umbrella control cabinet 3 is used to control and manage the vortex umbrella foam fine water mist fire extinguishing device 7, and the pump group control cabinet 2 is used to control and manage the water pump group 5 and the foam pump group 6. The main control cabinet 1 is connected to the vortex umbrella control cabinet 3 and the pump group control cabinet 2, and is used to control and manage the vortex umbrella control cabinet 3 and the pump group control cabinet 2; the vortex umbrella foam fine water mist fire extinguishing device 7 includes a rotating structure and a high-pressure gas tank, through which the barrel of the vortex umbrella foam fine water mist fire extinguishing device 7 can be rotated horizontally and pitched vertically. It rotates horizontally by 0-340 degrees and pitches vertically by -10°-45°. The high-pressure gas tank is used to compress and store air with a pressure greater than or equal to 10MPa. The average diameter of the fine water mist generated by the high-pressure fine water mist nozzle on the vortex umbrella foam fine water mist fire extinguishing device 7 can be 50-100μm.

[0030] The substation fire location and water mist fire extinguishing method based on airspace outlier analysis uses the substation fire location and water mist fire extinguishing system based on airspace outlier analysis, including the following steps: S1. Install the infrared thermal field monitoring device on the firewall of the main transformer of the substation to monitor the surface temperature of each component of the main transformer in real time. Install the high-pressure water mist fire extinguishing device on the open ground around the main transformer of the substation. S2. Connecting the infrared thermal field monitoring device and the high-pressure water mist fire extinguishing device to the fire extinguishing management system platform in the substation; S3. Setting an inspection plan for the infrared thermal field monitoring device; S4. The fire extinguishing management system platform receives and analyzes the infrared spectrum photos collected at the patrol preset positions; S5. The fire extinguishing management system platform calibrates temperature anomaly points based on infrared spectrum photos; S6. The fire extinguishing management system platform extinguishes the fire and reduces the temperature through the configured high-pressure fine water mist fire extinguishing device.

[0031] Furthermore, in one embodiment, step S2 of connecting the infrared thermal field monitoring device and the high-pressure water mist fire extinguishing device to a fire extinguishing management system platform in the substation includes: S21. Connecting the infrared thermal field monitoring device to the fire extinguishing management system platform via its SDK enables the fire extinguishing management system platform to remotely control the infrared thermal field monitoring device, including controlling the rotation of the device's pan / tilt head, controlling the rotation of the device's preset position, controlling the infrared thermal imaging temperature measurement camera assembly and the visible light camera assembly on the device to capture and photograph, and obtaining atlas photos captured by the infrared thermal imaging temperature measurement camera assembly and visible light photos captured by the visible light camera assembly. S22. Connecting the high-pressure water mist fire extinguishing device to the fire extinguishing management system platform through the communication protocol of the device, so that the fire extinguishing management system platform can remotely control the rotation of the high-pressure water mist cannon, control the start and stop of high-pressure water mist cooling and fire extinguishing, and obtain the working status of the high-pressure water mist device; S23. Preset positions for main transformer inspection are set for the infrared thermal field monitoring device through the fire extinguishing management system platform. A camera calibration is performed for each preset position. The calibration parameters include the camera intrinsic parameter matrix, distortion coefficient, camera extrinsic parameter rotation matrix, and translation vector (the camera calibration method is not described in detail in this invention; this is a mature method). The calibrated parameters are used for subsequent fire location conversion. S24. The fire extinguishing management system platform is used to configure the horizontal rotation angle and vertical pitch angle for the high-pressure water mist fire extinguishing device according to each preset position of the infrared thermal field monitoring device, so that when the infrared thermal field monitoring device detects an abnormal heating point or fire point during inspection at a preset position, the fire extinguishing management system platform can control the high-pressure water mist fire extinguishing device to move to the designated position to perform a fire extinguishing spray operation.

[0032] Furthermore, in one embodiment, in the inspection plan of the infrared thermal field monitoring device set in step S3, the inspection plan is to inspect each preset position set by the infrared thermal field monitoring device one by one, and the inspection content of each preset position includes taking photos to collect infrared spectrum photos and visible light photos. The inspection of each preset position stays for 10 seconds, and then moves to the next preset position to perform cyclic monitoring.

[0033] Furthermore, in one embodiment, the fire extinguishing management system platform receives infrared spectrum photos collected at the patrol preset position and performs analysis in step S4, including: By analyzing the temperature value of the highest temperature point in the infrared spectrum photo, it is determined whether the temperature value exceeds the threshold. If it does not exceed the threshold, no action is taken. If it exceeds the threshold, the automatic inspection is suspended first, the infrared thermal field monitoring device is stopped at the preset position, and the temperature is collected again and photographed for confirmation. If the temperature measurement and photography confirm that no abnormality is found, the inspection is continued. If the temperature measurement and photography confirm that there is still a temperature exceeding the threshold warning, the next step is taken.

[0034] The fire extinguishing management system platform incorporates a big data analysis algorithm model to analyze the spatial distribution and trend of surface temperature data for main transformer equipment. Based on spatial outlier calculations, it identifies locations with significantly different temperature values ​​from surrounding points, indicating potential fire hazards. Under normal circumstances, the temporal variation of each point should fluctuate or change slowly. By using this big data analysis algorithm to identify areas with rapid temporal temperature changes, it can be determined whether these locations have abnormal defects.

[0035] Furthermore, in one embodiment, the step S5 of the fire extinguishing management system platform calibrating the temperature anomaly point based on the infrared spectrum photo includes: the fire extinguishing management system platform converts the position of the temperature anomaly point in the world coordinate system based on the preset position calibration parameters of the warning and the position of the over-threshold temperature measurement point in the infrared spectrum photo.

[0036] Furthermore, in one embodiment, the S6 fire extinguishing management system platform performs fire extinguishing and cooling by using the configured high-pressure water mist fire extinguishing device, including: The fire extinguishing management system platform controls the high-pressure water mist fire extinguishing device to perform corresponding horizontal rotation and vertical pitch through the rotation angle of each preset position of the configured high-pressure water mist fire extinguishing device. After rotation into place, the high-pressure water mist device is remotely controlled to start the water mist spraying for cooling and fire extinguishing. At the same time, the fire extinguishing management system platform can display the temperature anomaly position or fire position based on the actual position coordinates of the temperature anomaly point obtained by conversion.

[0037] In summary, the substation fire location and fine water mist fire extinguishing system based on airspace outlier analysis of the present invention includes an infrared thermal field monitoring device and a high-pressure fine water mist fire extinguishing device. The infrared thermal field monitoring device is used to perform real-time patrol monitoring of the surface temperature of the equipment in the substation; the high-pressure fine water mist fire extinguishing device includes a foam proportioning mixer and a vortex umbrella foam fine water mist fire extinguishing device arranged on a column, and the high-pressure fine water mist fire extinguishing device is used to cool down the equipment in the substation and extinguish fires; the substation fire location and fine water mist fire extinguishing method based on airspace outlier analysis includes the following steps: S1, installing the infrared thermal field monitoring device on the firewall of the substation main transformer, and installing the high-pressure fine water mist fire extinguishing device on the open ground around the substation main transformer; S2, installing the The infrared thermal field monitoring device and the high-pressure fine water mist fire extinguishing device are connected to the fire extinguishing management system platform in the substation; S3, the inspection plan of the infrared thermal field monitoring device is set; S4, the fire extinguishing management system platform receives the infrared spectrum photos collected at the inspection preset position and analyzes them; S5, the fire extinguishing management system platform calibrates the temperature anomaly points according to the infrared spectrum photos; S6, the fire extinguishing management system platform extinguishes the fire and reduces the temperature through the configured high-pressure fine water mist fire extinguishing device; through the above steps, the present invention utilizes the infrared thermal field monitoring device and the high-pressure fine water mist fire extinguishing device to achieve fire positioning, efficient fire extinguishing and fire prevention, which can not only accurately detect hot spots in the early stage of fire, quickly reduce the temperature to prevent fire, but also accurately, efficiently and harmlessly extinguish fire after the fire occurs.

[0038] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these 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.

[0039] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and modifications fall within the scope of the invention as claimed.

Claims

1. Substation fire location and water mist fire extinguishing system based on airspace outlier analysis, characterized by: It includes an infrared thermal field monitoring device and a high-pressure fine water mist fire extinguishing device. The infrared thermal field monitoring device includes an infrared thermal imaging temperature measurement camera component and a visible light camera component. The infrared thermal field monitoring device is used to perform real-time inspection and monitoring of the surface temperature of equipment in the substation; the high-pressure fine water mist fire extinguishing device includes a foam proportioning mixer and a vortex umbrella foam fine water mist fire extinguishing device arranged on a column. The high-pressure fine water mist fire extinguishing device is used to cool down and extinguish fires in equipment in the substation.

2. The substation fire location and water mist fire extinguishing system based on spatial outlier analysis according to claim 1, characterized in that: The infrared thermal field monitoring device also includes a rotating platform, and the infrared thermal imaging temperature measurement camera component and the visible light camera component are arranged on the rotating platform.

3. The substation fire location and water mist fire extinguishing system based on spatial outlier analysis according to claim 2, characterized in that: The high-pressure water mist fire extinguishing device further comprises a water pump group and a foam pump group, and the water pump group and the foam pump group are connected to the foam proportioning mixer.

4. The substation fire location and water mist fire extinguishing system based on spatial outlier analysis according to claim 3, characterized in that: The high-pressure water mist fire extinguishing device also includes a vortex umbrella control cabinet, a pump group control cabinet and a main control cabinet.

5. A method for locating fire in a substation and extinguishing fire with water mist based on spatial outlier analysis, using the system for locating fire in a substation and extinguishing fire with water mist based on spatial outlier analysis as claimed in claim 4, characterized in that: The following steps are involved: S1. Install the infrared thermal field monitoring device on the firewall of the main transformer of the substation, and install the high-pressure water mist fire extinguishing device on the open ground around the main transformer of the substation; S2. Connecting the infrared thermal field monitoring device and the high-pressure water mist fire extinguishing device to the fire extinguishing management system platform in the substation; S3. Setting an inspection plan for the infrared thermal field monitoring device; S4. The fire extinguishing management system platform receives and analyzes the infrared spectrum photos collected at the patrol preset positions; S5. The fire extinguishing management system platform calibrates temperature anomaly points based on infrared spectrum photos; S6. The fire extinguishing management system platform extinguishes the fire and reduces the temperature through the configured high-pressure fine water mist fire extinguishing device.

6. The method for substation fire location and water mist fire extinguishing based on spatial outlier analysis according to claim 5, characterized in that: The step S2 of connecting the infrared thermal field monitoring device and the high-pressure water mist fire extinguishing device to the fire extinguishing management system platform in the substation includes: S21. Connect the infrared thermal field monitoring device to the fire extinguishing management system platform through the SDK of the infrared thermal field monitoring device; S22. Connecting the high-pressure water mist fire extinguishing device to the fire extinguishing management system platform through the communication protocol of the high-pressure water mist fire extinguishing device; S23. Setting a preset position for main transformer inspection for the infrared thermal field monitoring device through the fire extinguishing management system platform; S24. Configuring a horizontal rotation angle and a vertical pitch angle for the high-pressure water mist fire extinguishing device according to each preset position of the infrared thermal field monitoring device through the fire extinguishing management system platform.

7. The method for substation fire location and water mist fire extinguishing based on spatial outlier analysis according to claim 5, characterized in that: In the step S3 of setting the inspection plan of the infrared thermal field monitoring device, the inspection plan is to inspect each preset position set by the infrared thermal field monitoring device one by one, and the inspection content of each preset position includes taking photos to collect infrared spectrum photos and visible light photos.

8. The method for substation fire location and water mist fire extinguishing based on spatial outlier analysis according to claim 5, characterized in that: The fire extinguishing management system platform receives infrared spectrum photos collected at the patrol preset position and performs analysis in step S4, which includes: By analyzing the temperature value of the highest temperature point in the infrared spectrum photo, it is determined whether the temperature value exceeds the threshold. If it does not exceed the threshold, no processing is performed. If it exceeds the threshold, the automatic inspection is suspended first, and the temperature measurement and photo are collected again for confirmation.

9. The method for substation fire location and water mist fire extinguishing based on spatial outlier analysis according to claim 5, characterized in that: The step S5 of the fire extinguishing management system platform calibrating the temperature anomaly point according to the infrared spectrum photo includes: the fire extinguishing management system platform converts the position of the temperature anomaly point in the world coordinate system according to the preset position calibration parameters of the warning and the position of the over-threshold temperature measurement point in the infrared spectrum photo.

10. The method for substation fire location and water mist fire extinguishing based on spatial outlier analysis according to claim 5, characterized in that: The S6 fire extinguishing management system platform uses the configured high-pressure water mist fire extinguishing device to extinguish fire and reduce temperature, including: The fire extinguishing management system platform controls the high-pressure water mist fire extinguishing device to perform corresponding horizontal rotation and vertical pitch through the rotation angle of each preset position of the configured high-pressure water mist fire extinguishing device. After rotating into place, the high-pressure water mist device is remotely controlled to start the fine water mist spraying for cooling and fire extinguishing.

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