An unmanned aerial vehicle photovoltaic power station hot spot automatic detection device

Abstract

The utility model relates to photovoltaic station detection technical field discloses a kind of unmanned aerial vehicle photovoltaic station hot spot automatic detection equipment, comprising: automatic detection equipment main body, mobile protection mechanism and limiting unlocking mechanism.The utility model has the following advantages and effects: by being provided with mobile protection mechanism and limiting unlocking mechanism, mobile protection mechanism can realize the process of infrared thermal imager flight, avoid the surface of lens of airborne particulate matter knock and cause scratch, and by its rotary displacement, the flexible transparent band at infrared thermal imager lens can be changed in position, so that the area of lens contaminated by particulate matter rotary displacement is out of lens, improve the light transmittance of infrared thermal imager, when subsequent need to replace flexible transparent band, can not with the aid of tool, by limiting unlocking mechanism, realize quickly take down and replacement installation.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic power station inspection technology, and in particular to an automatic hot spot detection device for unmanned aerial vehicles (UAVs) in photovoltaic power stations. Background Technology

[0002] Photovoltaic power plants have a large number of photovoltaic panels simultaneously performing photoelectric conversion. Regular inspections of these panels are necessary to prevent damage and reduced efficiency. However, due to the large number of panels, manual operation is time-consuming and costly. Therefore, drones equipped with infrared thermal imagers are used for automated inspection. The infrared thermal imager can accurately locate hot spots and distinguish between high-temperature working areas and actual faults. It can automatically identify defects such as hot spots, diode failures, and microcracks in the photovoltaic panels, generating an inspection report including thermal maps and GPS location data. The drones equipped with infrared thermal imagers support automatic flight path planning, one-click takeoff and return, enabling unattended operation.

[0003] When a drone carrying an infrared thermal imager is conducting aerial inspections, the imager is exposed to the air during flight, making it susceptible to head-on collisions with airborne particles and impurities. This can cause damage to the imager's lens, disrupting the normal operation of the inspection. Utility Model Content

[0004] The purpose of this invention is to provide an automatic hot spot detection device for photovoltaic power plants using unmanned aerial vehicles (UAVs). This device can solve the problem mentioned in the background art where, during the aerial inspection process of an UAV carrying an infrared thermal imager, the infrared thermal imager is exposed in the air and is prone to head-on collisions with airborne particulate impurities, which can cause damage to the lens of the infrared thermal imager and affect the normal operation of the inspection work.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: an automatic detection device for hot spots in a photovoltaic power station using a drone, comprising: an automatic detection device body, a mobile protective mechanism, and a limit unlocking mechanism. The automatic detection device body includes a drone body and an infrared thermal imager disposed on the bottom outer wall of the drone body. The mobile protective mechanism is disposed on the bottom outer wall of the drone body, the infrared thermal imager is disposed inside the mobile protective mechanism, and the limit unlocking mechanism is disposed at the bottom of the mobile protective mechanism.

[0006] By adopting the above technical solution, airborne impurities can be blocked, preventing them from coming into contact with the lens of the infrared thermal imager.

[0007] A further feature of this invention is that the mobile protective mechanism includes a U-shaped mounting plate fixed to the outer wall of the bottom of the UAV body by bolts, and a fixing column is welded to the bottom of the U-shaped mounting plate. The number of fixing columns is four sets, and the four sets of fixing columns are arranged around the outside of the infrared thermal imager.

[0008] By adopting the above technical solution, the fixed column can achieve stable rotation of the flexible toothed strip and the flexible transparent strip on the outer wall.

[0009] A further feature of this invention is that the mobile protective mechanism also includes a flexible rack and pinion band sleeved on the outside of the four sets of fixed columns. The flexible rack and pinion band consists of two sets spaced apart, with a flexible transparent strip between the two sets of flexible rack and pinion bands.

[0010] By adopting the above technical solution, the flexible transparent strip can provide good light transmittance for infrared thermal imagers.

[0011] A further feature of this invention is that the mobile protective mechanism also includes a drive motor mounted on the bottom outer wall of the U-shaped mounting plate, and a connecting shaft is provided on the bottom output end of the drive motor.

[0012] By adopting the above technical solution, the drive motor can provide a stable and continuous rotation of the connecting shaft at the output end.

[0013] A further feature of this invention is that the mobile protective mechanism also includes a gear set fixed on the connecting shaft, the gear set consisting of two sets of small gears spaced apart.

[0014] By adopting the above technical solution, the gear set can be connected to the connecting shaft, thereby achieving synchronous rotation.

[0015] A further feature of this invention is that the two sets of pinions of the gear set mesh with the two sets of flexible rack belts.

[0016] By adopting the above technical solution, the gear set can mesh with the flexible rack belt and drive it to rotate synchronously during rotation.

[0017] A further feature of this invention is that the limiting and unlocking mechanism includes a limiting block welded to the upper part of the outer wall of the four sets of fixed columns, the limiting block being disposed above the flexible rack belt, and a limiting ring slidably disposed on each set of fixed columns, with each set of limiting rings disposed below the flexible rack belt.

[0018] By adopting the above technical solution, the limiting ring and the limiting block work together to limit the flexible toothed strip and the flexible transparent strip in the middle.

[0019] A further feature of this invention is that the limiting and unlocking mechanism also includes an insertion interface provided on each set of fixed posts, the insertion interface being located below the limiting ring.

[0020] By adopting the above technical solution, the interface can provide a structure to be inserted into it for connection.

[0021] A further feature of this invention is that the limiting and unlocking mechanism also includes a guide rod disposed at the center of the four sets of fixed columns, and both ends of the guide rod are integrally formed with protrusions.

[0022] By adopting the above technical solution, it is possible to prevent the structure on the guide rod from detaching from the guide rod during the displacement process.

[0023] A further feature of this invention is that the limiting and unlocking mechanism also includes a U-shaped plug block slidably disposed on the guide rod. The number of the U-shaped plug blocks is two sets, and both ends of each set of the U-shaped plug blocks are inserted into the interior of the two sets of plug interfaces. A spring is sleeved on the guide rod, and both ends of the spring are respectively attached to the outer wall of the two sets of the U-shaped plug blocks.

[0024] By adopting the above technical solution, the structure on both sides can be displaced by its own elasticity.

[0025] The beneficial effects of this utility model are as follows: By setting up a movable protective mechanism and a limiting unlocking mechanism, the movable protective mechanism can prevent airborne particles from hitting the lens surface and causing scratches during the flight of the infrared thermal imager. Moreover, through its own rotational displacement, it can change the position of the flexible transparent strip at the lens of the infrared thermal imager, so that the area of ​​the lens contaminated by particles can be rotated and moved out of the lens, thereby improving the light transmittance of the infrared thermal imager. When the flexible transparent strip needs to be replaced later, it can be quickly removed and replaced without the aid of tools through the limiting unlocking mechanism. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0028] Figure 2 This is a schematic diagram of the three-dimensional unfolded structure of this utility model;

[0029] Figure 3 This is a three-dimensional structural diagram of the mobile protective mechanism and the limiting and unlocking mechanism of this utility model;

[0030] Figure 4 For the present utility model Figure 3 Schematic diagram of the three-dimensional unfolded structure.

[0031] In the diagram, 1. UAV body; 2. Infrared thermal imager; 3. Mobile protective mechanism; 301. U-shaped mounting plate; 302. Fixing column; 303. Flexible rack and pinion belt; 304. Flexible transparent strip; 305. Drive motor; 306. Connecting shaft; 307. Gear set; 4. Limiting and unlocking mechanism; 401. Limiting block; 402. Limiting ring; 403. Plug interface; 404. Guide rod; 405. U-shaped plug block; 406. Spring. Detailed Implementation

[0032] The technical solution of this utility model will now be clearly and completely described with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0033] Reference Figure 1-4 An automatic hot spot detection device for a photovoltaic power station using a drone includes: an automatic detection device body, a mobile protective mechanism 3, and a limit unlocking mechanism 4. The automatic detection device body includes a drone body 1 and an infrared thermal imager 2 installed on the bottom outer wall of the drone body 1. The mobile protective mechanism 3 is installed on the bottom outer wall of the drone body 1, the infrared thermal imager 2 is installed inside the mobile protective mechanism 3, and the limit unlocking mechanism 4 is installed at the bottom of the mobile protective mechanism 3.

[0034] The mobile protective mechanism 3 includes a U-shaped mounting plate 301 fixed to the bottom outer wall of the UAV body 1 by bolts. The bottom of the U-shaped mounting plate 301 is welded with fixing posts 302. There are four sets of fixing posts 302, and the four sets of fixing posts 302 are arranged around the outside of the infrared thermal imager 2. A flexible rack and pinion belt 303 is sleeved on the outside of the four sets of fixing posts 302. The flexible rack and pinion belt 303 is composed of two sets arranged at intervals. A flexible transparent strip 304 is arranged between the two sets of flexible rack and pinion belts 303. A drive motor 305 is arranged on the bottom outer wall of the U-shaped mounting plate 301. A connecting shaft 306 is arranged on the bottom output end of the drive motor 305. A gear set 307 is fixed on the connecting shaft 306. The gear set 307 is composed of two sets of small gears arranged at intervals. The two sets of small gears of the gear set 307 mesh with the two sets of flexible rack and pinion belts 303.

[0035] The limiting and unlocking mechanism 4 includes a limiting block 401 welded to the upper part of the outer wall of the four sets of fixed posts 302. The limiting block 401 is located above the flexible rack belt 303. A limiting ring 402 is slidably disposed on each set of fixed posts 302. Each set of limiting rings 402 is located below the flexible rack belt 303. An insertion interface 403 is opened on each set of fixed posts 302. The insertion interface 403 is located below the limiting ring 402. A guide rod 404 is located in the middle of the four sets of fixed posts 302. Both ends of the guide rod 404 are integrally formed with protrusions. U-shaped insertion blocks 405 are slidably disposed on the guide rod 404. There are two sets of U-shaped insertion blocks 405. Both ends of each set of U-shaped insertion blocks 405 are inserted into the two sets of insertion interfaces 403. A spring 406 is sleeved on the guide rod 404. Both ends of the spring 406 are respectively attached to the outer wall of the two sets of U-shaped insertion blocks 405.

[0036] In this utility model, the drone body 1 is an aircraft that does not require a pilot and completes tasks through remote control or autonomous control. Its core components include the fuselage, power, control, and sensor systems. It can be categorized in various ways according to structure and purpose, and has wide applications. The drone body 1 is existing technology and will not be described in detail below. Starting the drone body 1 enables the infrared thermal imager 2 to fly along a designated path. The infrared thermal imager 2 can then inspect photovoltaic panels on the ground. It captures infrared radiation from the surface of objects to generate a thermal distribution image, quickly locating areas of abnormal temperature. By using the temperature difference between hot spots and normal areas, it visually displays the location of defects. The infrared thermal imager 2 is existing technology and will not be described in detail below. During the flight of the infrared thermal imager 2, impurities can be blocked by the flexible transparent strip 304 between the two sets of flexible rack belts 303 without affecting the light transmittance of the infrared thermal imager 2. When the flexible transparent strip 304 at the lens of the infrared thermal imager 2 is contaminated, the drive motor 305 is started to drive the connecting shaft 306 on the output end to rotate. During the rotation of the connecting shaft 306, the gear set 307 connected to the connecting shaft 306 can rotate. Because the gear set 307 meshes with the flexible rack belt 303, the flexible rack belt 303 can change the position of the contaminated flexible transparent strip 304 by rotating outside the fixing post 302 of the U-shaped mounting plate 301.

[0037] When the flexible transparent strip 304 needs to be replaced periodically, the flexible transparent strip 304 and the flexible toothed strip 303 are limited by the top and bottom limiting blocks 401 and limiting rings 402, thus achieving stable rotational displacement. At this time, the U-shaped plug block 405 is moved by hand. When the U-shaped plug block 405 moves on the guide rod 404, it is no longer squeezed by the spring 406, so that the U-shaped plug block 405 no longer continues to be inserted into the plug interface 403 of the fixed post 302. At this time, after the U-shaped plug block 405 no longer continues to be positioned by the limiting ring 402, the limiting ring 402 is detached from the fixed post 302 by sliding the limiting ring 402, thus realizing the sliding removal of the flexible toothed strip 303 and the flexible transparent strip 304 from the fixed post 302.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic hot spot detection device for unmanned aerial vehicle (UAV) photovoltaic power stations, comprising, characterized in that: The automatic detection equipment body includes a drone body (1) and an infrared thermal imager (2) installed on the bottom outer wall of the drone body (1); A mobile protective mechanism (3) is installed on the bottom outer wall of the UAV body (1), and the infrared thermal imager (2) is installed inside the mobile protective mechanism (3). Limit unlocking mechanism (4) is located at the bottom of the movable protective mechanism (3).

2. The automatic hot spot detection equipment for UAV photovoltaic power stations according to claim 1, characterized in that: The mobile protective mechanism (3) includes a U-shaped mounting plate (301) fixed to the bottom outer wall of the UAV body (1) by bolts. The bottom of the U-shaped mounting plate (301) is welded with a fixing column (302). There are four sets of fixing columns (302), and the four sets of fixing columns (302) are arranged around the outside of the infrared thermal imager (2).

3. The automatic hot spot detection equipment for UAV photovoltaic power stations according to claim 2, characterized in that: The mobile protective mechanism (3) also includes a flexible rack and pinion belt (303) sleeved on the outside of the four sets of fixed columns (302). The flexible rack and pinion belt (303) is composed of two sets spaced apart, and a flexible transparent strip (304) is provided between the two sets of flexible rack and pinion belts (303).

4. The automatic hot spot detection equipment for UAV photovoltaic power stations according to claim 3, characterized in that: The mobile protective mechanism (3) also includes a drive motor (305) installed on the bottom outer wall of the U-shaped mounting plate (301), and a connecting shaft (306) is provided on the bottom output end of the drive motor (305).

5. The automatic hot spot detection equipment for UAV photovoltaic power stations according to claim 4, characterized in that: The mobile protective mechanism (3) also includes a gear set (307) fixed on the connecting shaft (306), the gear set (307) consisting of two sets of small gears spaced apart.

6. The automatic hot spot detection equipment for UAV photovoltaic power stations according to claim 5, characterized in that: The two sets of pinions of the gear set (307) mesh with the two sets of flexible rack belts (303).

7. The automatic hot spot detection equipment for UAV photovoltaic power stations according to claim 1, characterized in that: The limiting and unlocking mechanism (4) includes a limiting block (401) welded to the upper part of the outer wall of the four sets of fixed columns (302). The limiting block (401) is located above the flexible rack belt (303). A limiting ring (402) is slidably arranged on each set of fixed columns (302). Each set of limiting rings (402) is located below the flexible rack belt (303).

8. The automatic hot spot detection equipment for UAV photovoltaic power stations according to claim 7, characterized in that: The limiting unlocking mechanism (4) further includes an insertion interface (403) provided on each set of fixed posts (302), the insertion interface (403) being located below the limiting ring (402).

9. The automatic hot spot detection equipment for UAV photovoltaic power stations according to claim 8, characterized in that: The limiting and unlocking mechanism (4) also includes a guide rod (404) disposed in the middle of the four sets of fixed columns (302), and the two ends of the guide rod (404) are integrally formed with protrusions.

10. The automatic hot spot detection equipment for UAV photovoltaic power stations according to claim 9, characterized in that: The limiting and unlocking mechanism (4) further includes a U-shaped plug block (405) slidably disposed on the guide rod (404). There are two sets of the U-shaped plug blocks (405). Both ends of each set of the U-shaped plug blocks (405) are inserted into the interior of two sets of plug interfaces (403). A spring (406) is sleeved on the guide rod (404). Both ends of the spring (406) are respectively attached to the outer wall of the two sets of U-shaped plug blocks (405).

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