A sensor-based multi-scenario fire safety monitoring system and method

Abstract

The present invention discloses a sensor-based multi-scenario fire safety monitoring system and method, which belongs to the field of monitoring technology and includes a central control management terminal and several tower base data boxes. The several tower base data boxes are connected to corresponding tower top data boxes, and the tower top data boxes are connected to sensor devices and multi-scenario fire protection devices located in the cabin; the multi-scenario fire protection devices include an air-cooling cooling mechanism, an in-cabin fire protection mechanism, and an in-cabin fire protection mechanism; the sensor devices include an in-cabin environment sensor component, an in-cabin environment sensor component, an out-cabin environment sensor component, a fan operating component sensor component, an image acquisition component, and a position data acquisition component. The above-mentioned sensor-based multi-scenario fire safety monitoring system and method are used, combined with the data collected inside and outside the cabin, to monitor the operation of the fan in real time and detect abnormalities in a timely manner. At the same time, air cooling is used for early heat dissipation, increasing fire protection measures and improving the safety of the fan.

Description

Technical Field

[0001] The present invention relates to the field of monitoring technology, and in particular to a sensor-based multi-scenario fire safety monitoring system and method. Background Art

[0002] Fires in wind turbine facilities are a serious safety concern, not only damaging equipment but also potentially endangering personnel and the surrounding environment. Preventing and responding to wind turbine fires is a systematic project that requires comprehensive consideration of electrical, mechanical, environmental, and personnel aspects. Regular maintenance, the installation of advanced monitoring and protection equipment, enhanced personnel training, and the development of detailed emergency response plans can effectively reduce fire risks and ensure the safe operation of wind turbine facilities. Prior art approaches increase the accuracy of alarms by increasing the number of sensors. For example, application No. 202410023227.1 discloses an automatic fire extinguishing system and operating method for a wind turbine nacelle. By employing multiple different types of fire detection sensors for fire detection, the functional limitations of a single fire detection sensor can be effectively overcome. The wind turbine main control module can detect fires early when electrical components in the wind turbine nacelle overheat or spark, and then extinguish them through the fire extinguishing module, facilitating timely fire extinguishing. This suppresses wind turbine fires and minimizes losses. The system is also suitable for wind turbines located in remote areas. However, the existing technology only focuses on monitoring inside the cabin and does not make adjustments based on the external environment. At the same time, the fire-fighting measures are single and do not have an early cooling function. Summary of the Invention

[0003] The purpose of the present invention is to provide a sensor-based multi-scenario fire safety monitoring system and method to solve the above technical problems.

[0004] To achieve the above objectives, the present invention provides a sensor-based multi-scenario fire safety monitoring system, comprising a central control management terminal and several tower-based data boxes connected to the central control management terminal via communication optical fibers, the several tower-based data boxes being connected to corresponding tower-top data boxes, and the tower-top data boxes being connected to sensor devices and multi-scenario firefighting devices located in the cabin;

[0005] Multi-scenario fire-fighting devices include air-cooling cooling mechanism, cabin fire-fighting mechanism and cabinet fire-fighting mechanism;

[0006] The sensor device includes an in-cabinet environment sensing component, an in-cabin environment sensing component, an out-cabin environment sensing component, a fan operation component sensing component, an image acquisition component, and a position data acquisition component.

[0007] Preferably, the in-cabinet environmental sensing component is arranged in the control cabinet inside the cabin and includes a temperature sensor, a breath sensor, a smoke sensor and a partial discharge sensor; the temperature sensor, the breath sensor, the smoke sensor and the partial discharge sensor are all electrically connected to the tower top data box for real-time collection of temperature, smoke, gas concentration and partial discharge data in the control cabinet.

[0008] Preferably, an air-cooling pipe rack is provided in the control cabinet, and the air-cooling pipe rack includes a first air inlet pipe and a first air outlet pipe. Several mounting pipes are connected between the first air inlet pipe and the first air outlet pipe. A thermoelectric power generation module is provided on the mounting pipe. The energy storage battery of the thermoelectric power generation module is arranged on the outside of the mounting pipe, the cold end of the thermoelectric power generation module is arranged on the support plate of the mounting pipe, and the hot end of the thermoelectric power generation module is arranged on the heat sink inside the mounting pipe. The energy storage battery is connected to the power module in the control cabinet.

[0009] Preferably, the cabin environment sensing assembly includes a temperature and humidity sensor, a smoke sensor, a breath sensor, a dual-beam flame detector and a smoke diffusion analyzer. The temperature and humidity sensor, the smoke sensor, the breath sensor, the dual-beam flame detector and the smoke diffusion analyzer are all electrically connected to the tower top data box, and the smoke sensor is electrically connected to the smoke diffusion analyzer.

[0010] Preferably, the extravehicular environment sensing assembly includes a temperature sensor, an altitude and pressure detector, a wind speed sensor, and a wind direction sensor, and the temperature sensor, the altitude and pressure detector, the wind speed sensor, and the wind direction sensor are all electrically connected to the tower top data box.

[0011] Preferably, the sensor assembly of the wind turbine operating components includes a point-distributed temperature sensor, a strip temperature sensor, a radiant heat flux detector, a current transformer, a voltage transformer and a vibration sensor; the point-distributed temperature sensor is distributed on the generator, the gearbox and the brake disc; the strip temperature sensor is distributed on the cable and the generator; the radiant heat flux detector and the vibration sensor are both arranged on the generator, the current transformer and the voltage transformer are arranged on the output cable of the generator, and the point-distributed temperature sensor, the strip temperature sensor, the radiant heat flux detector, the current transformer, the voltage transformer and the vibration sensor are all electrically connected to the tower top data box.

[0012] Preferably, the image acquisition component includes an infrared monitor, and the position data acquisition component includes a locator for acquiring the current position of the wind turbine.

[0013] Preferably, the air cooling mechanism includes a main air inlet duct located below the cabin and a main air outlet duct located above the cabin. A heat dissipation fan is provided in the main air inlet duct. The main air inlet duct is connected to the first air inlet duct of the air cooling pipe rack, the main air outlet duct is connected to the first air outlet duct, and the heat dissipation fan is connected to the tower top data box.

[0014] Preferably, an air-cooling pipe cover is further provided between the main air inlet pipe and the main air outlet pipe, and the air-cooling pipe cover is arranged on the generator, including a second air inlet pipe and a second air outlet pipe, and a plurality of heat exchange pipes are arranged in parallel between the second air inlet pipe and the second air outlet pipe, and the two ends of the plurality of heat exchange pipes are respectively slidably provided on the second air inlet pipe and the second air outlet pipe, and a trigger positioning mechanism is provided at both ends of the heat exchange pipe, and the trigger positioning mechanism includes an elastic telescopic tube arranged in the heat exchange pipe, a spring is embedded in the elastic telescopic tube and an anti-wear ball is provided at the bottom, and positioning ball plungers are provided on both sides of the heat exchange pipe, and guide rails are provided on the second air inlet pipe and the second air outlet pipe, and a positioning groove arranged opposite to the positioning ball plunger is provided in the guide groove of the guide rail.

[0015] Preferably, both the fire-fighting mechanism in the cabin and the fire-fighting mechanism in the cabinet use fluorohexanone fire extinguishers, and the fluorohexanone fire extinguishers are connected to the tower top data box.

[0016] Based on the above-mentioned sensor-based multi-scenario fire safety monitoring system method, the specific steps are as follows:

[0017] Step S1: real-time acquisition of data detected by the sensor device, determination of environmental and component data at various locations within the cabin, determination of environmental data outside the cabin, and simultaneous transmission of the data to a central control management terminal via a communication optical fiber;

[0018] Step S2: Determine whether to activate the multi-scenario fire-fighting device based on the set threshold;

[0019] When flames or sparks are detected, the fluorohexanone fire extinguisher at the corresponding location is activated;

[0020] When it is detected that the control cabinet or generator has overheated and the ambient temperature outside the cabin is lower than the set temperature, the cooling fan is started to cool the air. If the temperature at the overheating point does not drop after the set time or the temperature continues to increase or a fire occurs, the fluorohexanone fire extinguisher at the corresponding position is started for air cooling and simultaneous fire extinguishing.

[0021] Therefore, the present invention adopts the above-mentioned sensor-based multi-scenario fire safety monitoring system and method, which has the following beneficial effects:

[0022] (1) The sensor device includes an in-cabinet environment sensor component, an in-cabin environment sensor component, an out-cabin environment sensor component, a fan operating component sensor component, an image acquisition component, and a position data acquisition component, which realizes comprehensive monitoring of the fan, facilitates subsequent power generation optimization and timely implementation of fire protection measures.

[0023] (2) The multi-scenario fire-fighting device includes an air-cooling cooling mechanism, an in-cabin fire-fighting mechanism, and an in-cabinet fire-fighting mechanism. The air-cooling cooling mechanism further enhances the cooling effect and improves the fire-fighting effect.

[0024] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic structural diagram of a sensor-based multi-scenario fire safety monitoring system of the present invention;

[0026] Figure 2 This is a schematic diagram of the sensor device of the present invention;

[0027] Figure 3 This is a schematic diagram of the internal structure of the cabin of the present invention;

[0028] Figure 4 This is a schematic diagram of the air-cooled pipe rack structure of the present invention;

[0029] Figure 5 This is a schematic diagram of the installation pipe structure of the present invention;

[0030] Figure 6 This is a schematic diagram of the air-cooled pipe cover structure of the present invention;

[0031] Figure 7 This is a schematic diagram of the elastic telescopic tube structure of the present invention.

[0032] Reference numerals

[0033] 1. Central control management terminal; 2. Tower base data box; 3. Tower top data box; 4. Sensor device; 41. Cabinet environment sensor component; 42. Cabin environment sensor component; 43. Cabin environment sensor component; 44. Fan operation component sensor component; 45. Image acquisition component; 46. Position data acquisition component; 5. Multi-scenario fire protection device; 51. Air cooling mechanism; 511. Main air inlet duct; 512. Main air outlet duct; 513. Cooling fan ; 52. Fluorohexanone fire extinguisher; 6. Control cabinet; 7. Air-cooled pipe rack; 71. First air inlet pipe; 72. First air outlet pipe; 73. Mounting pipe; 731. Support plate; 732. Heat sink; 74. Energy storage battery; 75. Cold end; 76. Hot end; 8. Air-cooled pipe cover; 81. Second air inlet pipe; 82. Second air outlet pipe; 83. Heat exchange pipe; 84. Elastic telescopic pipe; 85. Anti-wear ball bearing; 86. Positioning ball plunger; 87. Guide rail. DETAILED DESCRIPTION

[0034] In the description of the present invention, it should be noted that the terms "upper", "lower", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or the orientations or positional relationships in which the inventive product is usually placed when in use. These are only for the convenience of describing the present invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention. In the description of the present invention, it should also be noted that, unless otherwise expressly specified and limited, the terms "setting", "installation" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be a communication between the internal parts of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0036] like Figure 1 As shown, a sensor-based multi-scenario fire safety monitoring system includes a central control management terminal 1 and several tower base data boxes 2 connected to the central control management terminal 1 through communication optical fibers, several tower base data boxes 2 are connected to corresponding tower top data boxes 3, and the tower top data boxes 3 are connected to the sensor device 4 and the multi-scenario fire protection device 5 located in the cabin.

[0037] like Figure 2 - Figure 3 As shown, sensor device 4 utilizes multiple sensors deployed at key locations within the wind turbine. This system monitors various parameters, such as ambient temperature and humidity, smoke concentration, and flame radiation, in real time. This allows for the early detection of sparks and temperature anomalies, enabling timely identification of potential fire risks. Sensor device 4 includes an in-cabinet environment sensor component 41, an in-cabin environment sensor component 42, an out-cabin environment sensor component 43, a turbine operating component sensor component 44, an image acquisition component 45, and a position data acquisition component 46.

[0038] The in-cabinet environmental sensing assembly 41, housed within the control cabinet 6 within the nacelle, includes a temperature sensor, a breath sensor, a smoke sensor, and a partial discharge sensor. These sensors are all electrically connected to the tower-top data box 3 and are used to collect real-time data on temperature, smoke, gas concentrations, and partial discharge within the control cabinet 6. The breath sensor monitors the concentrations of trace gases such as carbon monoxide, carbon dioxide, hydrogen sulfide, and sulfur dioxide in the environment, providing important information for wind turbine fire warnings. It can simultaneously detect the concentrations of carbon monoxide (CO), carbon dioxide (CO2), hydrogen sulfide (H2S), and sulfur dioxide (SO2). These gases are common byproducts of fire, making the composite breath sensor crucial for fire warning. When the concentration of these gases exceeds a preset safety threshold, the sensor immediately issues an alarm, notifying maintenance personnel to take timely action to prevent the occurrence or spread of the fire. The composite breath sensor also provides real-time data, helping maintenance personnel understand the internal gas environment of the wind turbine and providing valuable insights for equipment operation and maintenance.

[0039] The cabin environment sensing assembly 42 includes a temperature and humidity sensor, a smoke sensor, a breath sensor, a dual-beam flame detector, and a smoke diffusion analyzer. These sensors are all electrically connected to the tower data box 3, with the smoke sensor being electrically connected to the smoke diffusion analyzer. These sensors monitor changes in ambient temperature and humidity in real time. Temperature and humidity data are important indicators for assessing the operating status and safety of wind turbines. Excessively high temperatures may indicate equipment overload or poor heat dissipation, while abnormal humidity fluctuations may indicate potential electrical failures or corrosion risks. By monitoring these data in real time, operators can promptly identify potential safety hazards. The point-type dual-beam flame detector is an efficient and sensitive fire warning device. Utilizing the dual-beam principle, the dual-beam flame detector transmits and receives two beams of light to accurately monitor changes in flames in the environment. Once the detector detects the presence of a flame, it immediately triggers an alarm system, notifying operators to take timely countermeasures. The smoke diffusion analyzer can quickly detect the presence of smoke and analyze its concentration and diffusion rate using sophisticated sensors.

[0040] The extravehicular environment sensing assembly 43 includes a temperature sensor, an altitude and pressure detector, a wind speed sensor, and a wind direction sensor. These sensors are all electrically connected to the tower data box 3. The altitude and pressure detector measures the altitude and atmospheric pressure of the generator's location in real time. With its precise measurements, the wind turbine control system can adjust the turbine's operating status based on real-time environmental parameters, optimizing power generation efficiency and ensuring safe and stable operation of the equipment under varying altitudes and pressures.

[0041] The wind turbine operating component sensing assembly 44 includes point-distributed temperature sensors, strip-type temperature sensors, a radiant heat flux detector, a current transformer, a voltage transformer, and a vibration sensor. The point-distributed temperature sensors are located on the generator, gearbox, and brake disc to monitor temperature changes in key wind turbine components in real time. Strip-type temperature sensors are located on the cables and generator to comprehensively monitor temperature changes in the corresponding components. The radiant heat flux detector and vibration sensor are both installed on the generator, while the current transformer and voltage transformer are installed on the generator's output cable. The point-distributed temperature sensors, strip-type temperature sensors, radiant heat flux detector, current transformer, voltage transformer, and vibration sensor are all electrically connected to the tower top data box 3. The radiant heat flux detector monitors the thermal radiation flux around the generator in real time, accurately measuring the thermal radiation energy generated during generator operation. By monitoring changes in the thermal radiation flux in real time, the radiant heat flux detector can promptly detect abnormalities such as generator overheating and poor heat dissipation.

[0042] The image acquisition component 45 includes an infrared monitor that collects internal image data and infrared image data in real time, which can monitor the temperature distribution of various parts of the generator in real time, accurately detect abnormal hot spots, and effectively prevent the risk of fire caused by overheating of the equipment.

[0043] The position data acquisition component 46 includes a locator (using a dual-link wind turbine locator, model CLN02020V10), which is used to collect the current position of the wind turbine. It integrates the two major global positioning systems of Beidou and GPS, and realizes signal complementarity and enhancement through dual-link technology. It can provide stable and accurate positioning information even in complex environments. The dual-link wind turbine locator helps to optimize the operating posture and position adjustment of the wind turbine, thereby improving power generation efficiency and reducing operation and maintenance costs.

[0044] The multi-scenario fire-fighting device 5 includes an air-cooling mechanism 51 , an in-cabin fire-fighting mechanism, and an in-cabinet fire-fighting mechanism.

[0045] The control cabinet 6 is provided with an air cooling pipe rack 7, such as Figure 4 and Figure 5 As shown, the air-cooling pipe rack 7 includes a first air inlet pipe 71 and a first air outlet pipe 72. A plurality of mounting pipes 73 are connected between the first air inlet pipe 71 and the first air outlet pipe 72. A thermoelectric power generation module is provided on the mounting pipe 73. The energy storage battery 74 of the thermoelectric power generation module is provided on the outside of the mounting pipe 73. The cold end 75 of the thermoelectric power generation module is provided on the supporting plate 731 of the mounting pipe 73. The hot end 76 of the thermoelectric power generation module is provided on the heat sink 732 inside the mounting pipe 73. The energy storage battery 74 is connected to the power module in the control cabinet 6.

[0046] The air-cooling mechanism 51 includes a main air inlet duct 511 located below the cabin and a main air outlet duct 512 located above the cabin. A heat dissipation fan 513 is provided in the main air inlet duct 511. Since the fan is at a higher altitude and has a lower temperature, the temperature difference outside the cabin is used to cool the heat-generating components inside the cabin, while generating electricity by temperature difference.

[0047] The main air inlet pipe 511 is connected to the first air inlet pipe 71 of the air cooling pipe rack 7, the main air outlet pipe 512 is connected to the first air outlet pipe 72, and the heat dissipation fan 513 is connected to the tower top data box 3 to achieve cooling inside the control cabinet 6. An air cooling pipe cover 8 is also provided between the main air inlet pipe 511 and the main air outlet pipe 512. Figure 6 and Figure 7 As shown, the air-cooling pipe cover 8 is arranged on the generator to realize air cooling of the generator, including a second air inlet pipe 81 and a second air outlet pipe 82. A plurality of heat exchange pipes 83 are arranged in parallel between the second air inlet pipe 81 and the second air outlet pipe 82. The two ends of the plurality of heat exchange pipes 83 are respectively slidably arranged on the second air inlet pipe 81 and the second air outlet pipe 82. Both ends of the heat exchange pipe 83 are provided with a trigger positioning mechanism, which includes an elastic telescopic tube 84 arranged in the heat exchange pipe 83, a spring is embedded in the elastic telescopic tube 84 and an anti-wear ball 85 is provided at the bottom, and positioning ball head plungers 86 are provided on both sides of the heat exchange pipe 83, and a guide rail 87 is provided on the second air inlet pipe 81 and the second air outlet pipe 82. A positioning groove arranged opposite to the positioning ball head plunger 86 is provided in the guide groove of the guide rail 87. When maintaining the generator, the heat exchange tube 83 is pushed to one side of the guide rail 87 for easy daily maintenance. Sealing one-way springs are provided on the main air inlet pipe 511 and the main air outlet pipe 512. Under the action of the elastic telescopic tube 84, when the elastic telescopic tube 84 is opposite to the sealing one-way spring, the main air inlet pipe 511 and the main air outlet pipe 512 are connected to the heat exchange tube 83. When the elastic telescopic tube 84 and the sealing one-way spring are staggered, the sealing one-way spring seals the main air inlet pipe 511 and the main air outlet pipe 512.

[0048] The fire-fighting mechanism in the cabin and the fire-fighting mechanism in the cabinet both use fluorohexanone fire extinguishers 52, and the fluorohexanone fire extinguishers 52 are all connected to the tower top data box 3. When the control cabinet 6 or the generator overheats, the cooling fan 513 is started to cool the air. When the temperature does not drop or the temperature continues to increase or a fire occurs, the fluorohexanone fire extinguisher 52 at the corresponding position is started in time to perform air cooling and fluorohexanone fire extinguisher 52 fire extinguishing simultaneously.

[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit the same. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that they can still modify or replace the technical solutions of the present invention with equivalents, and these modifications or equivalent replacements cannot cause the modified technical solutions to deviate from the spirit and scope of the technical solutions of the present invention.

Claims

1. A sensor-based multi-scenario fire safety monitoring system, including a central control management terminal, characterized by: It also includes several tower base data boxes connected to the central control management terminal via communication optical fibers, several tower base data boxes are connected to corresponding tower top data boxes, and the tower top data boxes are connected to the sensor devices and multi-scenario fire protection devices located in the cabin; Multi-scenario fire-fighting devices include air-cooling cooling mechanism, cabin fire-fighting mechanism and cabinet fire-fighting mechanism; The sensor device includes an in-cabinet environment sensing component, an in-cabin environment sensing component, an out-cabin environment sensing component, a fan operation component sensing component, an image acquisition component, and a position data acquisition component; The in-cabinet environmental sensing component is installed in the control cabinet inside the cabin, including a temperature sensor, a breath sensor, a smoke sensor, and a partial discharge sensor. The temperature sensor, breath sensor, smoke sensor, and partial discharge sensor are all electrically connected to the tower top data box to collect real-time temperature, smoke, gas concentration, and partial discharge data in the control cabinet. An air-cooling pipe rack is provided in the control cabinet, and the air-cooling pipe rack includes a first air inlet pipe and a first air outlet pipe. A plurality of mounting pipes are connected between the first air inlet pipe and the first air outlet pipe. A thermoelectric power generation module is provided on the mounting pipe. The energy storage battery of the thermoelectric power generation module is provided on the outside of the mounting pipe. The cold end of the thermoelectric power generation module is provided on the support plate of the mounting pipe. The hot end of the thermoelectric power generation module is provided on the heat sink inside the mounting pipe. The energy storage battery is connected to the power module in the control cabinet. The air cooling mechanism includes a main air inlet duct located below the cabin and a main air outlet duct located above the cabin. A heat dissipation fan is provided in the main air inlet duct. The main air inlet duct is connected to the first air inlet duct of the air cooling pipe rack, the main air outlet duct is connected to the first air outlet duct, and the heat dissipation fan is connected to the data box on the top of the tower. An air-cooling pipe cover is also provided between the main air inlet pipe and the main air outlet pipe. The air-cooling pipe cover is provided on the generator and includes a second air inlet pipe and a second air outlet pipe. Several heat exchange pipes are arranged in parallel between the second air inlet pipe and the second air outlet pipe. The two ends of the several heat exchange pipes are respectively slidably provided on the second air inlet pipe and the second air outlet pipe. A trigger positioning mechanism is provided at both ends of the heat exchange pipe. The trigger positioning mechanism includes an elastic telescopic tube arranged in the heat exchange pipe, a spring is embedded in the elastic telescopic tube and an anti-wear ball is provided at the bottom, positioning ball plungers are provided on both sides of the heat exchange pipe, guide rails are provided on the second air inlet pipe and the second air outlet pipe, and a positioning groove arranged opposite to the positioning ball plunger is provided in the guide groove of the guide rail.

2. The sensor-based multi-scenario fire safety monitoring system according to claim 1, characterized in that: The cabin environment sensing components include temperature and humidity sensors, smoke sensors, breath sensors, dual-beam flame detectors and smoke diffusion analyzers. The temperature and humidity sensors, smoke sensors, breath sensors, dual-beam flame detectors and smoke diffusion analyzers are all electrically connected to the tower top data box, and the smoke sensor is electrically connected to the smoke diffusion analyzer.

3. The sensor-based multi-scenario fire safety monitoring system according to claim 1, characterized in that: The extravehicular environment sensing assembly includes a temperature sensor, an altitude and pressure detector, a wind speed sensor, and a wind direction sensor. The temperature sensor, the altitude and pressure detector, the wind speed sensor, and the wind direction sensor are all electrically connected to the tower top data box.

4. The sensor-based multi-scenario fire safety monitoring system according to claim 1, characterized in that: The sensor components of the wind turbine operating components include point-distributed temperature sensors, strip temperature sensors, radiant heat flux detectors, current transformers, voltage transformers and vibration sensors; the point-distributed temperature sensors are distributed on the generator, gearbox and brake disc; the strip temperature sensors are distributed on the cable and generator; the radiant heat flux detector and vibration sensor are both set on the generator, the current transformer and voltage transformer are set on the output cable of the generator, and the point-distributed temperature sensors, strip temperature sensors, radiant heat flux detectors, current transformers, voltage transformers and vibration sensors are all electrically connected to the tower top data box.

5. The sensor-based multi-scenario fire safety monitoring system according to claim 1, characterized in that: The image acquisition component includes an infrared monitor, and the position data acquisition component includes a locator, which is used to acquire the current position of the wind turbine.

6. The sensor-based multi-scenario fire safety monitoring system according to claim 5, characterized in that: The fire fighting mechanism inside the cabin and the fire fighting mechanism inside the cabinet both use fluorohexanone fire extinguishers, and the fluorohexanone fire extinguishers are all connected to the data box on the top of the tower.

7. A method for a sensor-based multi-scenario fire safety monitoring system according to claim 6, characterized in that: The specific steps are as follows: Step S1: real-time acquisition of data detected by the sensor device, determination of environmental and component data at various locations within the cabin, determination of environmental data outside the cabin, and simultaneous transmission of the data to a central control management terminal via a communication optical fiber; Step S2: Determine whether to activate the multi-scenario fire-fighting device based on the set threshold; When flames or sparks are detected, the fluorohexanone fire extinguisher at the corresponding location is activated; When it is detected that the control cabinet or generator has overheated and the ambient temperature outside the cabin is lower than the set temperature, the cooling fan is started for air cooling. If the temperature of the overheating point does not drop after the set time or the temperature continues to increase or a fire occurs, the fluorohexanone fire extinguisher at the corresponding position is started for air cooling and simultaneous fire extinguishing.

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