Photovoltaic power station detection method and device based on remote sensing technology

Abstract

The invention relates to a photovoltaic power station detection method and device based on a remote sensing technology, and relates to the related technical field of photovoltaic power station detection. The photovoltaic power station detection device comprises an unmanned aerial vehicle, a holder, an infrared thermal imager, a demisting mechanism, a switching communication mechanism, a pump body mechanism and an angle resistance mechanism. The device is poor in performance in the aspect of detection efficiency, and is difficult to comprehensively and efficiently detect numerous photovoltaic panels in limited time. Moreover, when detection is carried out according to a set period, once severe weather such as foggy weather encounters, fog can seriously influence the imaging quality of the infrared camera, so that pictures are blurred, accurate judgment on subsequent abnormal conditions such as hot spots is greatly interfered, and normal detection work is difficult to carry out smoothly.

Description

Technical Field

[0001] This application relates to the technical field of photovoltaic power station detection, and in particular to a method and device for detecting a photovoltaic power station based on remote sensing technology. Background Art

[0002] In the process of building a new energy system, photovoltaic power stations are closely connected to power supplies such as AC power transmission above 750 kV. A large amount of electric energy generated by large-scale photovoltaic power stations needs to rely on ultra-high voltage transmission lines above 750 kV to achieve long-distance and large-capacity transmission and be sent to the load center. At the same time, a large-scale power grid security guarantee and defense system can effectively respond to the power generation fluctuations of photovoltaic power stations caused by factors such as weather, ensuring stable power supply. The intelligent dispatching system can optimize the power generation of photovoltaic power stations and power grid transmission according to light changes, electricity demand, etc., improving the reliability and efficiency of the overall power supply. For problems with photovoltaic panels in a photovoltaic power station, local defects in the photovoltaic panels (such as cell cracks, dirt blockage, or bypass diode failure) will cause the current to be blocked, and the electric energy will be converted into heat energy, causing the temperature in this area to rise significantly (up to over 80°C), forming a "hot spot". Usually, an infrared thermal imager (3) is used for hot spot detection.

[0003] Existing photovoltaic panel hot spot detection devices, such as the Chinese patent with the publication number CN219536026U, a movable infrared hot spot detection device for a photovoltaic power station, include a pan-tilt head, an infrared camera, several telescopic legs, a cable, and a control box. Several telescopic legs are installed below the pan-tilt head, and the telescopic legs are detachably connected to a photovoltaic panel cleaning robot or an inspection robot. The infrared camera is installed on the pan-tilt head, and the control box is installed below the pan-tilt head. The infrared camera is connected to the control box through a cable. The beneficial technical effects of the present utility model include: monitoring the temperature of the photovoltaic panel through the infrared camera, conveniently adjusting the angle and position of the infrared camera by means of the telescopic legs and the pan-tilt head, and the device can be conveniently mounted on a photovoltaic panel cleaning robot or an inspection robot to achieve dynamic monitoring of the temperature of the photovoltaic panel.

[0004] In the above technology, the temperature of the photovoltaic panel is mainly monitored through an infrared camera. Facing a large-scale photovoltaic power station, this device performs poorly in terms of detection efficiency and is difficult to comprehensively and efficiently detect numerous photovoltaic panels within a limited time. Moreover, when performing detections at a fixed period, once encountering bad weather such as foggy days, the fog will seriously affect the imaging quality of the infrared camera, resulting in a blurred image, greatly interfering with the accurate judgment of abnormal conditions such as hot spots, and making it difficult to smoothly carry out normal detection work. Based on this, there is still room for improvement on the existing technology. Summary of the Invention

[0005] To improve the detection efficiency, the present application provides a photovoltaic power station detection method and device based on remote sensing technology.

[0006] In the first aspect, a photovoltaic power station detection device based on remote sensing technology provided by the present application adopts the following technical solution:

[0007] A photovoltaic power station detection device based on remote sensing technology includes a drone, the lower end of which is connected to a pan-tilt head; an infrared thermal imager, which is mounted at the lower end of the pan-tilt head; a defogging mechanism, which surrounds the infrared thermal imager, and the defogging mechanism is installed on the pan-tilt head through a connecting frame; a switching and connecting mechanism, which is slidably arranged outside the defogging mechanism, and the air outlet direction of the defogging mechanism is controlled by the switching and connecting mechanism in a sliding state; a pump body mechanism, which is connected to the rear end of the drone through a base, and the pump body mechanism is communicated with the rear end of the switching and connecting mechanism; an angle resistance mechanism, which is installed at the lower end of the drone, and the angle resistance mechanism and the switching and connecting mechanism cooperate with each other to further resist and position the angle of the infrared thermal imager.

[0008] Preferably, the defogging mechanism includes a connecting piece, which is installed on the pan-tilt head through a connecting frame; a connecting pipe, the front end of which is communicated with an air delivery cavity opened inside the connecting piece, a valve assembly is arranged in the middle of the connecting pipe, and the rear end of the connecting pipe is connected to the pump body mechanism.

[0009] Preferably, a spray hole is opened at the front end of the connecting piece, an air spray outlet facing the infrared thermal imager is arranged on the inner side wall of the connecting piece, a connecting hole is opened on the outer side wall of the connecting piece, and the air delivery cavity is communicated with the spray hole, the air spray outlet and the connecting hole.

[0010] Preferably, the valve assembly includes a pipe fitting, which is installed in the middle of the connecting pipe, valve pieces are symmetrically and slidably arranged at the left and right ends of the pipe fitting, a connecting rod is arranged outside the valve pieces, and a sliding piece is arranged at the outer end of the connecting rod.

[0011] Preferably, the switching and connecting mechanism includes an opening and closing assembly, which is slidably arranged at the outer wall position of the connecting piece; an electric push rod, which is installed at the upper end of the connecting piece, a pushing piece is installed at the ejecting end of the electric push rod, and the pushing piece is connected to the opening and closing assembly through a fixing frame; an opening and closing unit, which is built in the air delivery cavity, and the opening and closing unit is connected to the opening and closing assembly.

[0012] Preferably, the opening and closing assembly includes a movable piece, which is slidably sleeved on the connecting pipe, the pushing piece is connected to the movable piece through a fixing frame; an opening and closing plate, which is slidably arranged at the outer wall position of the connecting piece, a corresponding hole is opened on the opening and closing plate, and the position of the corresponding hole corresponds to the position of the connecting hole; a traction plate, which is installed at the rear end of the movable piece, a guiding groove is opened on the traction plate, the guiding groove is gradually inclined inward from front to back, and the sliding piece is slidably arranged in the guiding groove.

[0013] Preferably, the opening and closing unit includes an opening and closing piece, which is connected to the opening and closing plate through a linkage piece, and the linkage piece is slidably arranged in an open groove opened by the connecting piece; a closing piece, which is fixedly installed in the air transmission cavity, and the L-shaped opening and closing piece and the L-shaped closing piece are used in conjunction with each other.

[0014] Preferably, the angle resistance mechanism includes an arc rail, which is connected to the lower end of the drone through a supporting foot; a sliding block, which is installed at the rear end of the pusher, and the sliding block is slidably arranged inside the arc rail; a resistance component, which is slid up and down in a longitudinal groove opened in the sliding block, and a contact component used in conjunction with the resistance component is arranged in a transverse groove opened in the middle of the sliding block.

[0015] Preferably, the resistance assembly includes a resistance block, which slides up and down in a longitudinal groove opened in the sliding block. A hidden groove is opened at the outer end of the resistance block, and a rolling member is elastically slidably arranged inside the hidden groove. The outer end surface of the resistance block is covered with a friction layer.

[0016] Preferably, arc-shaped grooves are symmetrically provided at the upper and lower ends of the interior of the arc-shaped rail, a resistance layer is laid on the horizontal surface of the arc-shaped groove, and the resistance layer and the friction layer are used in coordination with each other to provide resistance.

[0017] Preferably, the contact assembly includes a contact piece, which is horizontally slidably arranged in a transverse groove, and an elastic telescopic rod is connected between the contact piece and the transverse groove.

[0018] On the other hand, the present application provides a photovoltaic power station detection method based on remote sensing technology, the method comprising the following steps:

[0019] S1. Choose a sunny, cloudless, and stable ambient temperature period, ensure that the photovoltaic panel surface is clean and the operating load is ≥ 70%;

[0020] S2. Dispatch a drone equipped with an infrared thermal imager to detect hot spots on photovoltaic panels and identify abnormally high temperature areas;

[0021] During flight, the pump mechanism and the defogger mechanism work together to perform routine defogger operations in the surrounding area. When encountering dense fog, the defogger mechanism's air outlet direction is changed by switching the connecting mechanism, thereby concentrating the air flow direction in the infrared thermal imager's detection direction, reducing the fog concentration in that detection direction.

[0022] S4, mark the hot spot coordinates (X, Y, Z) with an infrared thermal imager and simultaneously record the irradiance (≥700W / m 2 ), ambient temperature and wind speed, and generate a temperature distribution matrix;

[0023] S5. Report output.

[0024] In summary, the present application includes the following beneficial technical effects:

[0025] 1. The present application combines a drone with an infrared thermal imager in a mounted manner, enabling the infrared thermal imager to perform large-area detection at high altitude. Compared with land detection, the detection range is increased, and the position of the infrared thermal imager can be adjusted by the drone. For some special areas and environments, targeted detection can be carried out through altitude adjustment.

[0026] 2. Improve the detection clarity. Through the coordinated work of the defogging mechanism and the switching and connecting mechanism, the surrounding fog can be effectively removed during daily detection, and targeted centralized defogging can be carried out in a thick fog environment, significantly improving the clarity of the detection area of the infrared thermal imager, reducing the situation of undetected detection, and ensuring the accuracy of the detection results.

[0027] 3. Precise angle positioning. The angle resistance mechanism cooperates with the switching and connecting mechanism to perform resistance positioning on the angle of the infrared thermal imager while adjusting the direction of the defogging air outlet, enhancing the stability of the equipment during the detection process and further improving the detection accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is the first structural schematic diagram of the present application.

[0029] Figure 2 is the second structural schematic diagram of the present application.

[0030] Figure 3 is the third structural schematic diagram of the present application.

[0031] Figure 4 is the structural schematic diagram among the infrared thermal imager, the defogging mechanism, the switching and connecting mechanism, and the angle resistance mechanism of the present application.

[0032] Figure 5 is the cross-sectional view among the infrared thermal imager, the defogging mechanism, the switching and connecting mechanism, and the angle resistance mechanism of the present application.

[0033] Figure 6 is the cross-sectional view among the sliding block, the resistance component, and the contact component of the present application.

[0034] Figure 7 is the present application Figure 5 partial enlarged view of X.

[0035] Description of reference numerals: 1, unmanned aerial vehicle; 2, pan-tilt head; 3, infrared thermal imager; 4, defogging mechanism; 5, switching and connecting mechanism; 6, pump body mechanism; 7, angle resistance mechanism; 41, connecting piece; 42, connecting pipe; 43, air delivery cavity; 44, valve assembly; 49, ejection hole; 50, ejection port; 501, connecting hole; 441, pipe fitting; 442, valve piece; 443, connecting rod; 444, sliding piece; 51, opening and closing assembly; 52, electric push rod; 53, pushing piece; 54, fixing frame; 55, opening and closing unit; 511, movable piece; 512, opening and closing plate; 513, traction plate; 514, guiding groove; 551, opening and closing piece; 552, linkage piece; 553, opening groove; 554, closing piece; 71, arc track; 72, sliding block; 73, resistance assembly; 74, contact assembly; 731, resistance block; 732, rolling piece; 741, contact piece; 742, elastic telescopic rod. Detailed implementation manners

[0036] The following further describes the present application in detail with reference to the Figures 1-7 accompanying drawings.

[0037] The embodiment of the present application discloses a photovoltaic power station detection device based on remote sensing technology. When the present application performs hot spot detection on a photovoltaic panel, it performs air-assisted defogging on the area around the unmanned aerial vehicle 1, improving the clarity. For a thick fog area, the air delivery port is further concentrated, and the air delivery force is strengthened, so as to perform defogging operation on the area detected by the infrared thermal imager 3, improving the clarity.

[0038] Referring to Figures 1-4 as shown, a photovoltaic power station detection device based on remote sensing technology disclosed in this embodiment includes an unmanned aerial vehicle 1, a pan-tilt head 2, an infrared thermal imager 3, a defogging mechanism 4, a switching and connecting mechanism 5, a pump body mechanism 6, and an angle resistance mechanism 7. The lower end of the unmanned aerial vehicle 1 is connected to the pan-tilt head 2, the infrared thermal imager 3 is mounted at the lower end of the pan-tilt head 2, the defogging mechanism 4 surrounds the infrared thermal imager 3, and the defogging mechanism 4 is installed on the pan-tilt head 2 through a connecting frame. The switching and connecting mechanism 5 is slidably arranged outside the defogging mechanism 4, and the air outlet direction of the defogging mechanism 4 is controlled by the switching and connecting mechanism 5 in a sliding state. The pump body mechanism 6 is connected to the rear end of the unmanned aerial vehicle 1 through a base, and the pump body mechanism 6 is communicated with the rear end of the switching and connecting mechanism 5. The angle resistance mechanism 7 is installed at the lower end of the unmanned aerial vehicle 1, and the angle resistance mechanism 7 and the switching and connecting mechanism 5 cooperate to further resist and position the angle of the infrared thermal imager 3.

[0039] During the actual operation process, the photovoltaic panel is detected for hot spots by the infrared thermal imager 3 to identify abnormal high-temperature areas. During the flight of the drone 1, the pump body mechanism 6 conveys gas to the fog removal mechanism 4 to perform side air-assisted fog removal on the surrounding area of the flight, which can achieve a good fog removal effect for some light fog. When encountering a thick fog area, the connection mechanism 5 can be switched to move backward, thereby changing the air outlet direction of the fog removal mechanism 4, making the air delivery direction concentrated in the detection direction of the infrared thermal imager 3 (the area orientation is adjusted from the air delivery area outside the drone 1 to the air delivery area concentrated at the detection port of the infrared thermal imager 3), and increasing the air volume, making the air outlet larger and the air delivery range longer, improving the clarity of the detection port area of the infrared thermal imager 3 and reducing the situation of undetected detection.

[0040] It should be noted that the infrared thermal imager 3 is a prior art. The infrared thermal imager 3 is a device that receives infrared radiation (usually with a wavelength of 8 - 14 μm) emitted from the surface of an object and converts it into a visible thermal image. Its core component is an infrared detector, which can sense temperature differences and display them in different colors (high-temperature areas are often red / yellow, and low-temperature areas are blue / green), realizing non-contact visualization of temperature distribution. The infrared thermal imager 3 identifies hot spots on the photovoltaic panel through temperature anomalies, providing an efficient and intuitive means of fault diagnosis for power station operation and maintenance. However, it is necessary to optimize the detection conditions in combination with the working conditions to improve the accuracy.

[0041] Refer to Figures 4-5 As shown in the figure, the fog removal mechanism 4 includes a connecting piece 41, a connecting pipe 42, an air delivery cavity 43, and a valve assembly 44. The connecting piece 41 is installed on the pan-tilt 2 through a connecting frame. The front end of the connecting pipe 42 is communicated with the air delivery cavity 43 opened inside the connecting piece 41. A valve assembly 44 is arranged in the middle of the connecting pipe 42. The rear end of the connecting pipe 42 is connected to the pump body mechanism 6.

[0042] Refer to Figure 5 As shown in the figure, the front end of the connecting piece 41 is provided with a spray hole 49. The inner side wall of the connecting piece 41 is provided with a spray outlet 50 facing the direction of the infrared thermal imager 3. The outer side wall of the connecting piece 41 is provided with a connecting hole 501, and the air delivery cavity 43 is communicated with the spray hole 49, the spray outlet 50, and the connecting hole 501.

[0043] During the actual fog removal process, the pump body mechanism 6 conveys gas through the connecting pipe 42 to the air delivery cavity 43 and finally sprays out from the connecting hole 501 opened on the outer side of the connecting piece 41, thereby performing daily fog removal operations. During the conveying process, the valve assembly 44 controls the size of the gas delivery volume.

[0044] Refer to Figure 5As shown, the valve assembly 44 includes a pipe fitting 441, which is installed in the middle of the connecting pipe 42. Valve members 442 are symmetrically and slidably arranged at the left and right ends of the pipe fitting 441. A connecting rod 443 is arranged outside the valve members 442, and a sliding member 444 is arranged at the outer end of the connecting rod 443.

[0045] During the actual process of controlling the gas delivery volume, the valve members 442 close towards each other, the delivery space decreases, the valve members 442 gradually separate, and the delivery space increases. When passing through the thick fog area, the electric push rod 52 drives the pushing member 53 and the movable member 511 to move backward synchronously. Under the squeezing and sliding of the guiding groove 514 and the sliding member 444, the valve members 442 gradually separate, so that the passing volume inside the pipe fitting 441 gradually increases.

[0046] Refer to Figures 4-5 As shown, the switching and connecting mechanism 5 includes an opening and closing assembly 51, an electric push rod 52, a pushing member 53, a fixing frame 54, and an opening and closing unit 55. The opening and closing assembly 51 is slidably arranged on the outer wall of the connecting member 41. The electric push rod 52 is installed at the upper end of the connecting member 41, and the ejecting end of the electric push rod 52 is installed with the pushing member 53. The pushing member 53 is connected to the opening and closing assembly 51 through the fixing frame 54. The opening and closing unit 55 is built in the gas delivery cavity 43 and is connected to the opening and closing assembly 51.

[0047] Refer to Figure 5 As shown, the opening and closing assembly 51 includes a movable member 511, an opening and closing plate 512, a traction plate 513, and a guiding groove 514. The movable member 511 is slidably sleeved on the connecting pipe 42. The pushing member 53 is connected to the movable member 511 through the fixing frame 54. The opening and closing plate 512 is slidably arranged on the outer wall of the connecting member 41. The opening and closing plate 512 is provided with corresponding holes, and the positions between the corresponding holes and the connecting holes 501 correspond to each other. The traction plate 513 is installed at the rear end of the movable member 511. The guiding groove 514 is formed on the traction plate 513 and has a structure that gradually inclines inward from front to back, and the sliding member 444 is slidably arranged in the guiding groove 514.

[0048] Refer to Figure 7As shown, the opening and closing unit 55 includes an opening and closing member 551, a linkage member 552, an opening groove 553, and a closing member 554. The opening and closing member 551 is connected to the opening and closing plate 512 through the linkage member 552. The linkage member 552 is slidably disposed in the opening groove 553 formed in the connecting member 41, and the length of the opening and closing member 515 can block the position of the opening groove 517, so that even if the opening and closing member 515 slides, it will block and seal the opening groove 517. The closing member 554 is fixedly installed in the gas transmission cavity 43, and the L-shaped opening and closing member 551 and the L-shaped closing member 518 are used in cooperation. When the two are closed, they can partition the gas transmission cavity 43. At this time, the gas in the gas transmission cavity 43 can only be ejected from the connection hole 501. When the two are separated, the connection hole 501 is blocked and closed. At this time, the gas in the gas transmission cavity 43 is ejected from the ejection holes 49 and the ejection ports 50.

[0049] During the actual switching process, the electric push rod 52 drives the pushing member 53 and the fixing bracket 54 to move backward. The movable member 511 and the opening and closing plate 512 connected to the fixing bracket 54 move synchronously until the positions between the corresponding holes and the connection hole 501 are misaligned (the connection hole 501 is blocked and closed). At this time, the opening and closing member 551 and the closing member 554 are misaligned to form a conveying space. The gas in the gas transmission cavity 43 passes through the conveying space and is ejected from the ejection holes 49 and the ejection ports 50, so as to perform air blowing and defogging on the detection port orientation of the infrared thermal imager 3 and the position of the detection port of the infrared thermal imager 3.

[0050] Refer to Figure 4 、 Figure 6 As shown, the angle resistance mechanism 7 includes an arc track 71, a sliding block 72, a resistance component 73, and a contact component 74. The arc track 71 is connected to the lower end of the unmanned aerial vehicle 1 through a support leg. The sliding block 72 is installed at the rear end of the pushing member 53. The sliding block 72 is slidably disposed inside the arc track 71. The resistance component 73 is slidably disposed up and down in the longitudinal groove formed in the sliding block 72. The contact component 74 used in cooperation with the resistance component 73 is disposed in the transverse groove formed in the middle of the sliding block 72. Arc grooves are symmetrically formed at the upper and lower ends inside the arc track 71. A resistance layer is laid on the horizontal plane of the arc groove, and the resistance layer and the friction layer are used in resistance cooperation.

[0051] Refer to Figure 6 As shown, the resistance component 73 includes a resistance block 731. The resistance block 731 is slidably disposed up and down in the longitudinal groove formed in the sliding block 72. A hidden groove is formed at the outer end of the resistance block 731. A rolling member 732 is elastically slidably disposed inside the hidden groove. A friction layer is laid on the outer end surface of the resistance block 731.

[0052] Refer to Figure 6As shown, the contact component 74 includes a contact piece 741 which is horizontally slidably arranged in a transverse groove, and an elastic telescopic rod 742 is connected between the contact piece 741 and the transverse groove.

[0053] During the actual operation process, the electric push rod 52 drives the pushing piece 53 and the fixing frame 54 to move backward. The movable piece 511 and the opening and closing plate 512 connected to the fixing frame 54 move synchronously until they reach the rearmost side. At this time, the connection hole 501 is blocked and closed, and the space between the opening and closing piece 551 and the closing piece 554 is opened in a staggered manner, reaching the maximum distance between the valve pieces 442. The sliding block 72 moves to the rearmost side. During the backward movement of the sliding block 72, the rear end surface of the contact piece 741 is gradually squeezed into the transverse groove by the inside of the arc track 71. The contact piece 741 squeezes the resistance block 731 to slide up and down in the reverse direction. When the sliding block 72 moves to the rearmost side, the contact piece 741 completely retracts into the transverse groove, and the friction layer of the resistance block 731 contacts the resistance layer, thereby performing resistance braking, and then locking the horizontal position of the pan-tilt 2.

[0054] The present application also discloses a photovoltaic power station detection method based on remote sensing technology as described in one of the above items. Specifically, it includes the following steps:

[0055] S1. Select a sunny, cloudless, and stable environmental temperature period (avoiding strong noon reflection), and ensure that the surface of the photovoltaic panel is clean and the operating load ≥ 70%;

[0056] S2. Dispatch a drone equipped with an infrared thermal imager 3 to perform hot spot detection on the photovoltaic panel through the infrared thermal imager 3 to identify abnormally high-temperature areas;

[0057] S3. During the flight process, the surrounding area of the flight is de-fogged daily through the cooperation between the pump body mechanism 6 and the de-fogging mechanism 4. When encountering a thick fog area, the air outlet direction of the de-fogging mechanism 4 is changed by switching the connection mechanism 5, so as to concentrate the air delivery direction on the detection direction of the infrared thermal imager 3 and reduce the fog concentration in the detection direction;

[0058] S4. Mark the hot spot coordinates X, Y, Z through the infrared thermal imager 3, synchronously record the irradiance (≥ 700W / m 2 ), environmental temperature, and wind speed, and generate a temperature distribution matrix;

[0059] S5. Report output.

[0060] The embodiments of the present specific implementation manners are all preferred embodiments of the present invention, and do not limit the protection scope of the present invention accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be covered within the protection scope of the present invention.

Claims

1. A photovoltaic power station detection device based on remote sensing technology, characterized in that Including: A drone, the lower end of which is connected to a pan-tilt head; An infrared thermal imager, which is mounted at the lower end of the pan-tilt head; A defogging mechanism, which surrounds the infrared thermal imager, and the defogging mechanism is installed on the pan-tilt head through a connecting frame; A switching and connecting mechanism, which is slidably arranged outside the defogging mechanism, and the air outlet direction of the defogging mechanism is controlled by the switching and connecting mechanism in a sliding state; A pump body mechanism, which is connected to the rear end of the drone through a base, and the pump body mechanism is connected to the rear end of the switching and connecting mechanism; An angle resistance mechanism, which is installed at the lower end of the drone, and the angle resistance mechanism and the switching and connecting mechanism are used in cooperation to further resist and position the angle of the infrared thermal imager.

2. The photovoltaic power station detection device based on remote sensing technology according to claim 1, wherein: The defogging mechanism includes: A connecting piece, which is installed on the pan-tilt head through a connecting frame; A connecting pipe, the front end of which is connected to an air delivery cavity opened inside the connecting piece, a valve assembly is arranged in the middle of the connecting pipe, and the rear end of the connecting pipe is connected to the pump body mechanism.

3. The photovoltaic power station detection device based on remote sensing technology according to claim 2, wherein: A spray hole is opened at the front end of the connecting piece, an air spray outlet facing the direction of the infrared thermal imager is arranged on the inner side wall of the connecting piece, a connecting hole is opened on the outer side wall of the connecting piece, and the air delivery cavity is connected to the spray hole, the air spray outlet and the connecting hole.

4. The photovoltaic power station detection device based on remote sensing technology according to claim 3, characterized in that: The valve assembly includes a pipe fitting, the pipe fitting is installed in the middle of the connecting pipe, valve pieces are symmetrically and slidably arranged at the left and right ends of the pipe fitting, a connecting rod is arranged outside the valve piece, and a sliding piece is arranged at the outer end of the connecting rod.

5. The photovoltaic power station detection device based on remote sensing technology according to claim 4, characterized in that: The switching and connecting mechanism includes: An opening and closing assembly, which is slidably arranged at the outer wall position of the connecting piece; [[ID= ​ 6. The photovoltaic power station detection device based on remote sensing technology according to claim 5, characterized in that: ​ ​ ​ ​ 7. The photovoltaic power station detection device based on remote sensing technology according to claim 6, characterized in that: ​ ​ ​ 8. The photovoltaic power station detection device based on remote sensing technology according to claim 5, characterized in that: ​ ​ ​ ​ 9. The photovoltaic power station detection device based on remote sensing technology according to claim 8, characterized in that: ​ Arc-shaped grooves are symmetrically formed at the upper and lower ends inside the arc-shaped rail. A resistance layer is laid on the horizontal plane of the arc-shaped groove, and the resistance layer is used in cooperation with the friction layer. The contact component includes a contact member, which is horizontally slidably arranged in the transverse groove, and an elastic telescopic rod is connected between the contact member and the transverse groove.

10. A photovoltaic power station detection device based on remote sensing technology according to any one of claims 1-9, characterized in that: The detection method of the above photovoltaic power station detection device based on remote sensing technology includes the following steps: S1. Select a sunny, cloudless, and stable environmental temperature period to ensure the surface of the photovoltaic panel is clean. S2. Dispatch a drone equipped with an infrared thermal imager to detect hot spots on the photovoltaic panel through the infrared thermal imager and identify abnormally high-temperature areas. S3. During the flight, perform daily fog removal on the surrounding area of the flight through the cooperation between the pump body mechanism and the fog removal mechanism. When encountering a thick fog area, change the air outlet direction of the fog removal mechanism by switching the connection mechanism, so as to concentrate the air supply direction on the detection direction of the infrared thermal imager and reduce the fog concentration in the detection direction. S4. Mark the hot spot coordinates through the infrared thermal imager, synchronously record the irradiance, environmental temperature, and wind speed, and generate a temperature distribution matrix. S5. Report output.

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