Special visual smoke detection system for wind power generator cabin

Abstract

The invention provides a special visual smoke detection system for a wind power generator cabin, and relates to the technical field of smoke detection systems, and the system comprises a detection module which is used for carrying out the space video collection and smoke collection of the wind power generator cabin; the fire identification and judgment module is used for carrying out fire identification and fire judgment based on the wind power generator cabin video acquisition and smoke acquisition results; and the analysis control module is used for carrying out different levels of fire alarm prompts based on the fire judgment result and timely starting the detection module protection mechanism to protect the detector main body of the detection module. The detector main body moves on the space auxiliary moving mechanism, the detection range of the detector main body is expanded, the problem of detection dead angles caused by sight shielding can be better avoided, when the smoke collection concentration is larger than the preset smoke concentration, fire behavior judgment is conducted, and the detection efficiency is improved. And the detection module protection mechanism is timely started to protect the detector main body of the detection module, so that the detector main body is prevented from being damaged in a fire disaster.

Description

Technical Field

[0001] The invention belongs to the technical field of smoke detection systems, and in particular relates to a special visual smoke detection system for a wind turbine cabin. Background Art

[0002] With the rapid development of the wind energy industry, the safe operation of the wind turbine cabin as one of the key components is of vital importance. Due to the complex internal structure, small space and a large amount of combustible materials in the wind turbine cabin, once a fire occurs, the consequences will be disastrous. Therefore, it is necessary to install a smoke detection system in the wind turbine cabin. The current smoke detection system is directly installed on the inner wall of the wind turbine cabin due to the complex internal structure of the wind turbine cabin. The direct installation on the inner wall of the wind turbine cabin usually leads to obstruction of the smoke detection system's line of sight. At the same time, in the event of a fire, the existing smoke detection system lacks protection devices, resulting in damage to the smoke detection system in the fire and failure to transmit the on-site video back in time. Summary of the invention

[0003] The present invention provides a visual smoke detection system dedicated to a wind turbine cabin, so as to solve at least one of the technical problems mentioned above.

[0004] In order to solve the above technical problems, the present invention discloses a visual smoke detection system dedicated to a wind turbine cabin, comprising:

[0005] Detection module, used for spatial video acquisition and smoke collection of the wind turbine cabin;

[0006] The fire identification and judgment module is used to identify and judge the fire based on the video collection and smoke collection results of the wind turbine cabin;

[0007] The analysis and control module is used to issue different levels of fire alarm prompts based on the fire situation judgment results, and to activate the detection module protection mechanism in a timely manner to protect the detector body of the detection module.

[0008] Preferably, the detection module includes a detector body and a space-assisted moving mechanism. The detector body is installed on the space-assisted moving mechanism. The space-assisted moving mechanism can drive the detector body to move in space. The detector body is used to capture video of the wind turbine cabin. A smoke sensor is provided on the detector body, and the smoke sensor is used to collect the smoke concentration in the wind turbine cabin.

[0009] Preferably, the space auxiliary movement mechanism includes a drive motor 1, a reduction gearbox, a track mounting seat and a track. The reduction gearbox is installed in the wind turbine cabin, and the drive motor 1 is installed on the reduction gearbox. The output end of the drive motor 1 is electrically connected to the input end of the reduction gearbox, and the output end of the reduction gearbox is connected to the track mounting seat. The track is fixedly installed on the track mounting seat. A carrier slide groove is provided in the middle of the track, and a carrier is slidably connected in the carrier slide groove. The carrier is fixedly connected to a drive motor 2, and the output end of the drive motor 2 is fixedly connected to a drive gear, and the drive gear is meshed with the auxiliary gear ring on the track. The detector body is installed at one end of the carrier.

[0010] Preferably, the other end of the carrier is connected to a detection module protection mechanism via an electric connecting shaft, and the detection module protection mechanism includes a detection module protection mechanism shell, and a clear sight line component and a detection module fire protection component are arranged in the detection module protection mechanism shell.

[0011] Preferably, the fire protection assembly of the detection module includes a sealing cylinder, which is slidably connected in the housing of the detection module protection mechanism, an electric drive gear is rotatably connected to the housing of the detection module protection mechanism, a rack is fixedly connected to the sealing cylinder, the electric drive gear and the rack are meshed with each other, a buffer elastic member is fixedly connected to the bottom of the sealing cylinder, a sealing ring is provided on the inner wall of the top of the sealing cylinder, the sealing ring is used to cooperate with the sealing groove on the housing of the detection module protection mechanism, and a plurality of air injection holes are opened on the sealing cylinder;

[0012] A dry ice storage chamber is arranged in the shell of the detection module protection mechanism, and a heating and cooling plate is arranged on the inner wall of the dry ice storage chamber. The heating and cooling plate is used for heating and cooling the dry ice storage chamber.

[0013] Preferably, it also includes a driven gear, which is rotatably connected in the housing of the detection module protection mechanism, the driven gear is meshed with the second rack on the sealing cylinder, a pull wire is wound around the rotating shaft corresponding to the driven gear, and one end of the pull wire away from the rotating shaft corresponding to the driven gear is fixedly connected with a wedge block, the wedge block is slidably connected in the housing of the detection module protection mechanism, and the wedge block and the housing of the detection module protection mechanism are connected through a second buffer elastic member;

[0014] An electric push screw is rotatably connected in the dry ice storage chamber, a push nut is threadedly connected on the electric push screw, the push nut is slidably connected in the dry ice storage chamber, a wedge block slot is provided on the push nut, the wedge block slot is used to cooperate with the wedge block, and a buffer elastic part three is sleeved on the electric push screw.

[0015] Preferably, the clear line of sight assembly includes a filter chamber, a filter screen 1 is provided at the inlet end of the filter chamber, an exhaust fan is provided at the outlet end of the filter chamber, a filter screen 2 is provided in the filter chamber, and a heat transfer material is provided between the filter chamber and the dry ice storage chamber of the detection module protection mechanism shell.

[0016] Preferably, fire identification and fire situation judgment based on wind turbine cabin video collection and smoke collection results include:

[0017] When the smoke concentration collected by the smoke sensor is greater than the preset smoke concentration, a fire situation is determined. Specifically:

[0018] Obtain the video acquisition frame at the current moment, and obtain the pixel values ​​of all pixels in the video acquisition frame at the current moment, take the pixel points whose pixel values ​​are greater than the preset pixel values ​​as the pixels to be identified, obtain the three-channel values ​​of the pixels to be identified, and sort the three-channel values, and take the pixels to be identified whose three-channel value sorting results are the same as the preset results as the fire pixels;

[0019] The area composed of all adjacent fire pixels is regarded as the fire area;

[0020] Calculate the fire severity coefficient for each fire area;

[0021] The fire level is judged based on the fire severity coefficient of each fire area, and different levels of fire alarm prompts are issued based on the fire judgment results.

[0022] Preferably, the quotient of the number of fire pixels in each fire area and the number of pixels to be identified is used as the fire severity coefficient of each fire area.

[0023] Preferably, it also includes a sight-clearing component triggering unit, which is used to control the sight-clearing component to work based on the video acquisition result, and the sight-clearing component triggering unit includes:

[0024] The calculation pixel acquisition subunit is used to obtain the pixel value of each pixel point of all video single frames in the preset safety area of ​​the detector body, calculate the pixel mean of the adjacent pixels of each pixel point of each video single frame, and use it as the calculation pixel of the corresponding pixel point of the corresponding video single frame to obtain a number of calculation pixels at each pixel point position;

[0025] The dense smoke area background acquisition subunit takes the quotient of the sum of several calculated pixels of each pixel point and the total number of all video single frames as the dense smoke area background pixel value of each pixel point, and uses the image constructed by the dense smoke area background pixel value as the dense smoke area background of the preset safety area of ​​the detector body;

[0026] The thick smoke area judgment subunit calculates the absolute value of the difference between the thick smoke area background pixel value of each pixel position in the thick smoke area background and the pixel value of the corresponding pixel position in the current video single frame. If the absolute value of the difference corresponding to the pixel position is greater than the preset pixel difference, the pixel position is marked as a thick smoke area pixel, and the area composed of all thick smoke area pixels is the thick smoke area. When the quotient of the number of all thick smoke area pixels and the preset number of pixels in the preset safety area of ​​the detector body is greater than the preset judgment ratio, the clear line of sight component is triggered to filter the smoke in the preset safety area of ​​the detector body.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] The present invention improves the flexibility of the detector body and expands the detection range of the detector body by moving the detector body on the space auxiliary moving mechanism, which can better avoid the problem of detection blind spots caused by line of sight obstruction. When the smoke collection concentration is greater than the preset smoke concentration, a fire situation is judged, and different levels of fire alarm prompts are given based on the fire situation judgment results. The detection module protection mechanism is started in time to protect the detector body of the detection module to avoid the detector body from being damaged in a fire. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0030] Figure 1 This is a schematic diagram of the overall structure of the visual smoke detection system dedicated to the wind turbine cabin of the present invention;

[0031] Figure 2 A schematic diagram of the structure of the protection mechanism of the detection module of the present invention;

[0032] Figure 3 For the present invention Figure 2 A partial enlarged view of point A.

[0033] In the figure: 1. detector body; 2. space auxiliary moving mechanism; 200. driving motor 1; 201. reduction box; 202. track mounting seat; 203. track; 204. carrier; 205. driving motor 2; 206. driving gear; 207. auxiliary gear ring; 208. electric connecting shaft; 3. detection module protection mechanism; 300. detection module protection mechanism housing; 3000. sealing cylinder; 3001. electric driving gear; 3002. rack 1; 3003. buffer elastic member 1; 3004. sealing ring ; 3005, sealing groove; 3006, jet hole; 3007, dry ice storage chamber; 3008, heating refrigeration plate; 3009, driven gear; 301, rack two; 3010, pull wire; 3011, wedge block; 3012, buffer elastic part two; 3013, electric push screw; 3014, push nut; 3015, wedge block slot; 3016, buffer elastic part three; 302, filter chamber; 3020, filter screen one; 3021, exhaust fan; 3022, filter screen two; 3023, heat transfer material. DETAILED DESCRIPTION

[0034] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0035] In addition, in the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes, and do not specifically refer to the order or sequence, nor are they used to limit the present invention. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions and technical features between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0036] The present invention provides the following embodiments

[0037] Example 1

[0038] The embodiment of the present invention provides a visual smoke detection system for a wind turbine cabin, such as Figure 1-3 As shown, including:

[0039] Detection module, used for spatial video acquisition and smoke collection of the wind turbine cabin;

[0040] The fire identification and judgment module is used to identify and judge the fire based on the video collection and smoke collection results of the wind turbine cabin;

[0041] The analysis and control module is used to issue different levels of fire alarm prompts based on the fire situation judgment results, and to activate the detection module protection mechanism 3 in a timely manner to protect the detector body 1 of the detection module.

[0042] Preferably, the detection module includes a detector body 1 and a space-assisted moving mechanism 2, and the space-assisted moving mechanism 2 can drive the detector body 1 to move in space.

[0043] Preferably, the detector body 1 can operate normally within a temperature range of -40°C to +70°C;

[0044] Have good waterproof and dustproof performance (at least meet IP65 standard);

[0045] Able to withstand harsh conditions such as strong winds and vibrations;

[0046] Equipped with a high-definition camera and supports night vision mode;

[0047] Support wireless data transmission, such as Wi-Fi or 4G / 5G network;

[0048] Built-in SD card slot or other form of local storage media;

[0049] When the external power supply is interrupted, it can immediately switch to the built-in lithium battery and continue to work for at least 2 hours.

[0050] The working principle and beneficial effects of the above technical scheme are as follows: the present invention improves the flexibility of the detector body 1 and expands the detection range of the detector body 1 by moving the detector body 1 on the space auxiliary moving mechanism 2, which can better avoid the problem of detection blind spots caused by line of sight obstruction. When the smoke collection concentration is greater than the preset smoke concentration, a fire situation is judged, and different levels of fire alarm prompts are given based on the fire situation judgment results, and the detection module protection mechanism 3 is started in time to protect the detector body 1 of the detection module to prevent the detector body 1 from being damaged in a fire.

[0051] Example 2

[0052] Based on Example 1, the detection module includes a detector body 1 and a space-assisted mobile mechanism 2. The detector body 1 is installed on the space-assisted mobile mechanism 2. The space-assisted mobile mechanism 2 can drive the detector body 1 to move in space. The detector body 1 is used to capture video of the wind turbine cabin. A smoke sensor is provided on the detector body 1, and the smoke sensor is used to collect the smoke concentration in the wind turbine cabin.

[0053] The working principle and beneficial effects of the above technical solution are as follows: when working, the space auxiliary moving mechanism 2 drives the detector body 1 to move in space, thereby improving the flexibility of the detector body 1, expanding the detection range of the detector body 1, and better avoiding the problem of detection blind spots caused by line of sight obstruction.

[0054] Example 3

[0055] On the basis of Example 1, the space auxiliary mobile mechanism 2 includes a driving motor 200, a reduction gearbox 201, a track mounting seat 202 and a track 203. The reduction gearbox 201 is installed in the wind turbine cabin, and the driving motor 200 is installed on the reduction gearbox 201. The output end of the driving motor 200 is electrically connected to the input end of the reduction gearbox 201, and the output end of the reduction gearbox 201 is connected to the track mounting seat 202. The track 203 is fixedly mounted on the track mounting seat 202. A carrier slide groove is provided in the middle of the track 203, and a carrier 204 is slidably connected in the carrier slide groove. A driving motor 205 is fixedly connected to the carrier 204, and a driving gear 206 is fixedly connected to the output end of the driving motor 205. The driving gear 206 is meshed with an auxiliary gear ring 207 on the track 203, and the detector body 1 is installed at one end of the carrier 204.

[0056] The working principle and beneficial effects of the above technical solution are as follows: when working, the driving motor 200 is started to drive the transmission inside the reduction box 201, and finally drives the track mounting seat 202 to rotate. The rotation of the track mounting seat 202 drives the track 203 to perform circular motion in space. At the same time, the driving motor 205 is started to drive the driving gear 206 to rotate. The rotation of the driving gear 206 drives the carrier 204 to slide along the carrier slide groove, thereby driving the detector body 1 to perform spatial flipping, thereby improving the spatial detection flexibility of the detector body 1.

[0057] Example 4

[0058] On the basis of Example 3, the other end of the carrier 204 is connected to the detection module protection mechanism 3 through the electric connecting shaft 208. The detection module protection mechanism 3 includes a detection module protection mechanism shell 300. The detection module protection mechanism shell 300 is provided with a clear line of sight component and a detection module fire protection component.

[0059] The working principle and beneficial effects of the above technical solution are as follows: when the severity of the fire in the wind turbine cabin reaches a preset level, in order to avoid the detector body 1 being damaged by the flame and to ensure the quality of image acquisition during the fire, the detection module protection mechanism 3 promptly protects the detector body 1 of the detection module, promptly extinguishes the flame in the preset safety area of ​​the detector body, and filters the smoke in the preset safety area of ​​the detector body, thereby avoiding the influence of smoke on the video acquisition quality.

[0060] Example 5

[0061] On the basis of Example 4, the fire protection assembly of the detection module includes a sealing cylinder 3000, which is slidably connected in the detection module protection mechanism housing 300, and the detection module protection mechanism housing 300 is rotatably connected with an electric drive gear 3001, and the sealing cylinder 3000 is fixedly connected with a rack 3002, and the electric drive gear 3001 and the rack 3002 are meshed with each other. A buffer elastic member 3003 is fixedly connected to the bottom of the sealing cylinder 3000, and a sealing ring 3004 is provided on the inner wall of the top of the sealing cylinder 3000, and the sealing ring 3004 is used to cooperate with the sealing groove 3005 on the detection module protection mechanism housing 300, and a plurality of jet holes 3006 are opened on the sealing cylinder 3000;

[0062] A dry ice storage chamber 3007 is provided in the detection module protection mechanism housing 300, and a heating and cooling plate 3008 is provided on the inner wall of the dry ice storage chamber 3007, and the heating and cooling plate 3008 is used for heating and cooling the dry ice storage chamber 3007;

[0063] It also includes a driven gear 3009, which is rotatably connected to the detection module protection mechanism housing 300, and the driven gear 3009 is meshed with the rack 2 301 on the sealing cylinder 3000, and a pull wire 3010 is wound around the rotating shaft corresponding to the driven gear 3009, and a wedge block 3011 is fixedly connected to the end of the pull wire 3010 away from the rotating shaft corresponding to the driven gear 3009, and the wedge block 3011 is slidably connected to the detection module protection mechanism housing 300, and the wedge block 3011 is connected to the detection module protection mechanism housing 300 through a buffer elastic member 2 3012;

[0064] An electric push screw 3013 is rotatably connected in the dry ice storage chamber 3007, and a push nut 3014 is threadedly connected on the electric push screw 3013. The push nut 3014 is slidably connected in the dry ice storage chamber 3007. A wedge block slot 3015 is provided on the push nut 3014, and the wedge block slot 3015 is used to cooperate with the wedge block 3011. A buffer elastic member 3 3016 is sleeved on the electric push screw 3013.

[0065] The working principle and beneficial effects of the above technical solution are as follows: when the fire protection component of the detection module is working, the carrier 204 is in a position perpendicular to Figure 1In the direction, the electric driving gear 3001 rotates to drive the sealing cylinder 3000 to move outward, and finally the jet hole 3006 connects the dry ice storage chamber 3007 with the outside world, and then the heating refrigeration plate 3008 heats the dry ice in the dry ice storage chamber 3007 to make it sublime. In the process of the sealing cylinder 3000 moving outward, the rack 2 301 drives the driven gear 3009 to rotate, and the driven gear 3009 rotates to drive the pull wire 3010 to pull the wedge block 3011 back, so that the wedge block 3011 is disengaged from the wedge block slot 3015, and then the electric driving screw 3013 rotates to drive the driving nut 3014 to move outward along the electric driving screw 3013 under the action of the thread, so as to discharge the carbon dioxide gas in the dry ice storage chamber 3007 from the dry ice storage chamber 3007, and the discharged carbon dioxide gas passes through the jet hole 3006 and is sprayed in an umbrella shape in the preset safety area of ​​the detector body, thereby preventing the fire from affecting the detector body 1.

[0066] Example 6

[0067] On the basis of Example 4, the clear line of sight component includes a filter chamber 302, a filter screen 1 3020 is provided at the inlet end of the filter chamber 302, an exhaust fan 3021 is provided at the outlet end of the filter chamber 302, a filter screen 2 3022 is provided in the filter chamber 302, and a heat transfer material 3023 is provided between the filter chamber 302 and the dry ice storage chamber 3007 of the detection module protection mechanism housing 300.

[0068] The working principle and beneficial effects of the above technical solution are as follows: when the smoke concentration in the preset safety area of ​​the detector body blocks the video acquisition line of sight, the electric connecting shaft 208 rotates and the exhaust fan 3021 is started. The smoke in the preset safety area of ​​the detector body passes through filter 1 3020 and filter 2 3022 in turn, and is then exhausted through the exhaust fan 3021, thereby avoiding excessive smoke concentration in the preset safety area of ​​the detector body, which may pollute the detector body 1 or block the video acquisition line of sight.

[0069] Example 7

[0070] On the basis of Example 1, fire identification and fire situation judgment are performed based on the wind turbine cabin video collection and smoke collection results, including:

[0071] When the smoke concentration collected by the smoke sensor is greater than the preset smoke concentration, a fire situation is determined. Specifically:

[0072] Obtain the video acquisition frame at the current moment, and obtain the pixel values ​​of all pixels in the video acquisition frame at the current moment, take the pixel points whose pixel values ​​are greater than the preset pixel values ​​as the pixels to be identified, obtain the three-channel values ​​of the pixels to be identified, and sort the three-channel values, and take the pixels to be identified whose three-channel value sorting results are the same as the preset results as the fire pixels;

[0073] The area composed of all adjacent fire pixels is regarded as the fire area;

[0074] Calculate the fire severity coefficient for each fire area;

[0075] Fire severity is determined based on the fire severity coefficient of each fire area, and different levels of fire alarm prompts are issued based on the fire severity determination results;

[0076] The quotient of the number of fire pixels in each fire area and the number of pixels to be identified is taken as the fire severity coefficient of each fire area.

[0077] The working principle and beneficial effects of the above technical solution are as follows: by combining smoke concentration and video frame analysis, fires can be identified quickly and accurately, and the accuracy of fire identification is improved by sorting the three-channel values ​​of pixel points. Graded alarms are performed according to the fire severity coefficient, making it easier to take corresponding emergency measures.

[0078] Example 8

[0079] On the basis of Example 6, it also includes a sight clearing component triggering unit, which is used to control the sight clearing component to work based on the video acquisition result, and the sight clearing component triggering unit includes:

[0080] The calculation pixel acquisition subunit is used to obtain the pixel value of each pixel point of all video single frames in the preset safety area of ​​the detector body, calculate the pixel mean of the adjacent pixels of each pixel point of each video single frame, and use it as the calculation pixel of the corresponding pixel point of the corresponding video single frame to obtain a number of calculation pixels at each pixel point position;

[0081] The dense smoke area background acquisition subunit takes the quotient of the sum of several calculated pixels of each pixel point and the total number of all video single frames as the dense smoke area background pixel value of each pixel point, and uses the image constructed by the dense smoke area background pixel value as the dense smoke area background of the preset safety area of ​​the detector body;

[0082] The thick smoke area judgment subunit calculates the absolute value of the difference between the thick smoke area background pixel value of each pixel position in the thick smoke area background and the pixel value of the corresponding pixel position in the current video single frame. If the absolute value of the difference corresponding to the pixel position is greater than the preset pixel difference, the pixel position is marked as a thick smoke area pixel, and the area composed of all thick smoke area pixels is the thick smoke area. When the quotient of the number of all thick smoke area pixels and the preset number of pixels in the preset safety area of ​​the detector body is greater than the preset judgment ratio, the clear line of sight component is triggered to filter the smoke in the preset safety area of ​​the detector body.

[0083] The working principle and beneficial effects of the above technical solution are: the operation of the clear line of sight component is automatically controlled through the video acquisition results, which improves the intelligence level of the system, can monitor the changes in the dense smoke area in real time, and ensure that the quality of video acquisition is not affected. Through the combination of the filter and the exhaust fan, the smoke in the preset safety area of ​​the detector body can be effectively filtered out. By setting reasonable thresholds and judgment conditions, the reliability and stability of the system are enhanced.

[0084] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A visual smoke detection system for wind turbine cabins, characterized by: include: Detection module, used for spatial video acquisition and smoke collection of the wind turbine cabin; The fire identification and judgment module is used to identify and judge the fire based on the video collection and smoke collection results of the wind turbine cabin; The analysis and control module is used to issue fire alarm prompts of different levels based on the fire situation judgment result, and to activate the detection module protection mechanism (3) in a timely manner to protect the detector body (1) of the detection module.

2. The visual smoke detection system for wind turbine cabin according to claim 1 is characterized in that: The detection module comprises a detector body (1) and a spatial auxiliary mobile mechanism (2); the detector body (1) is mounted on the spatial auxiliary mobile mechanism (2); the spatial auxiliary mobile mechanism (2) can drive the detector body (1) to move in space; the detector body (1) is used to collect video of the wind turbine cabin; a smoke sensor is provided on the detector body (1); and the smoke sensor is used to collect smoke concentration in the wind turbine cabin.

3. The visual smoke detection system for wind turbine cabin according to claim 2 is characterized in that: The space auxiliary movement mechanism (2) comprises a driving motor (200), a reduction box (201), a track mounting seat (202) and a track (203); the reduction box (201) is mounted in a wind turbine cabin; the driving motor (200) is mounted on the reduction box (201); the output end of the driving motor (200) is electrically connected to the input end of the reduction box (201); the output end of the reduction box (201) is connected to the track mounting seat (202); and the track (203) is electrically connected to the wind turbine cabin. The detector body (1) is fixedly mounted on a track mounting seat (202), a carrier slide groove is provided in the middle of the track (203), a carrier (204) is slidably connected in the carrier slide groove, a second drive motor (205) is fixedly connected to the carrier (204), a drive gear (206) is fixedly connected to the output end of the second drive motor (205), the drive gear (206) and the auxiliary gear ring (207) on the track (203) are meshed with each other, and the detector body (1) is mounted on one end of the carrier (204).

4. The visual smoke detection system for wind turbine cabin according to claim 3 is characterized in that: The other end of the carrier (204) is connected to a detection module protection mechanism (3) via an electric connection shaft (208); the detection module protection mechanism (3) comprises a detection module protection mechanism housing (300); a clear sight line component and a detection module fire protection component are arranged in the detection module protection mechanism housing (300).

5. The visual smoke detection system for wind turbine cabin according to claim 4 is characterized in that: The detection module fire protection assembly comprises a sealing cylinder (3000), the sealing cylinder (3000) is slidably connected in the detection module protection mechanism housing (300), the detection module protection mechanism housing (300) is rotatably connected with an electric drive gear (3001), the sealing cylinder (3000) is fixedly connected with a rack (3002), the electric drive gear (3001) and the rack (3002) are meshed with each other, a buffer elastic member (3003) is fixedly connected to the bottom of the sealing cylinder (3000), a sealing ring (3004) is provided on the inner wall of the top of the sealing cylinder (3000), the sealing ring (3004) is used to cooperate with a sealing groove (3005) on the detection module protection mechanism housing (300), and a plurality of air injection holes (3006) are opened on the sealing cylinder (3000); A dry ice storage chamber (3007) is provided in the detection module protection mechanism housing (300), and a heating and cooling plate (3008) is provided on the inner wall of the dry ice storage chamber (3007). The heating and cooling plate (3008) is used for heating and cooling the dry ice storage chamber (3007).

6. The visual smoke detection system for wind turbine cabin according to claim 5 is characterized in that: It also includes a driven gear (3009), the driven gear (3009) is rotatably connected in the detection module protection mechanism housing (300), the driven gear (3009) is meshed with the second rack (301) on the sealing cylinder (3000), a pull wire (3010) is wound around the rotating shaft corresponding to the driven gear (3009), and a wedge block (3011) is fixedly connected to one end of the pull wire (3010) away from the rotating shaft corresponding to the driven gear (3009), the wedge block (3011) is slidably connected in the detection module protection mechanism housing (300), and the wedge block (3011) and the detection module protection mechanism housing (300) are connected via a second buffer elastic member (3012); An electric push screw (3013) is rotatably connected in the dry ice storage chamber (3007), a push nut (3014) is threadedly connected to the electric push screw (3013), the push nut (3014) is slidably connected in the dry ice storage chamber (3007), a wedge block slot (3015) is provided on the push nut (3014), the wedge block slot (3015) is used to cooperate with the wedge block (3011), and a buffer elastic member three (3016) is sleeved on the electric push screw (3013).

7. The visual smoke detection system for wind turbine cabin according to claim 4 is characterized in that: The clear line of sight assembly comprises a filter chamber (302), a filter screen 1 (3020) is provided at the inlet end of the filter chamber (302), an exhaust fan (3021) is provided at the outlet end of the filter chamber (302), a filter screen 2 (3022) is provided in the filter chamber (302), and a heat transfer material (3023) is provided between the filter chamber (302) and the dry ice storage chamber (3007) of the detection module protection mechanism housing (300).

8. The visual smoke detection system for wind turbine cabin according to claim 1 is characterized in that: Fire identification and fire situation judgment are performed based on wind turbine cabin video and smoke collection results, including: When the smoke concentration collected by the smoke sensor is greater than the preset smoke concentration, a fire situation is determined. Specifically: Obtain the video acquisition frame at the current moment, and obtain the pixel values ​​of all pixels in the video acquisition frame at the current moment, take the pixel points whose pixel values ​​are greater than the preset pixel values ​​as the pixels to be identified, obtain the three-channel values ​​of the pixels to be identified, and sort the three-channel values, and take the pixels to be identified whose three-channel value sorting results are the same as the preset results as the fire pixels; The area composed of all adjacent fire pixels is regarded as the fire area; Calculate the fire severity coefficient for each fire area; The fire level is judged based on the fire severity coefficient of each fire area, and different levels of fire alarm prompts are given based on the fire judgment results.

9. The visual smoke detection system for wind turbine cabin according to claim 8 is characterized in that: The quotient of the number of fire pixels in each fire area and the number of pixels to be identified is taken as the fire severity coefficient of each fire area.

10. The visual smoke detection system for wind turbine cabin according to claim 7, characterized in that: It also includes a sight-clearing component triggering unit, which is used to control the sight-clearing component to work based on the video acquisition result. The sight-clearing component triggering unit includes: The calculation pixel acquisition subunit is used to obtain the pixel value of each pixel point of all video single frames in the preset safety area of ​​the detector body, calculate the pixel mean of the adjacent pixels of each pixel point of each video single frame, and use it as the calculation pixel of the corresponding pixel point of the corresponding video single frame to obtain a number of calculation pixels at each pixel point position; The dense smoke area background acquisition subunit takes the quotient of the sum of several calculated pixels of each pixel point and the total number of all video single frames as the dense smoke area background pixel value of each pixel point, and constructs an image of the dense smoke area background pixel value as the dense smoke area background of the preset safety area of ​​the detector body; The thick smoke area judgment subunit calculates the absolute value of the difference between the thick smoke area background pixel value of each pixel position in the thick smoke area background and the pixel value of the corresponding pixel position in the current video single frame. If the absolute value of the difference corresponding to the pixel position is greater than the preset pixel difference, the pixel position is marked as a thick smoke area pixel, and the area composed of all thick smoke area pixels is the thick smoke area. When the quotient of the number of all thick smoke area pixels and the preset number of pixels in the preset safety area of ​​the detector body is greater than the preset judgment ratio, the clear line of sight component is triggered to filter the smoke in the preset safety area of ​​the detector body.

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