Main ridge line automatic extraction device and method suitable for mountainous wind farm development

Abstract

The application belongs to the technical field of geological surveying and mapping equipment, and particularly relates to a main ridge line automatic extraction device and method suitable for mountain wind farm development, which comprises a unmanned aerial vehicle and a collector installed on the unmanned aerial vehicle; further comprises a multistage cleaning mechanism, which is used for cleaning the optical end of the collector to maintain the data collection effect of the collector; the impact assembly is arranged, when the unmanned aerial vehicle carries the collector to carry out field data exploration, the double protection is formed on the collector by using the jet flow mode of the spray head, so that the efficiency of the internal dust separating from the collector is improved, the probability of the external dust adhering to the collector is reduced, and the protection effect of the optical end of the collector is realized by cooperating with the roller brush assembly, so that the accuracy of data collection is improved.

Description

Technical Field

[0001] This invention belongs to the field of geological surveying equipment technology, specifically an automatic extraction device and method for main ridge lines applicable to mountain wind farm development. Background Technology

[0002] A ridgeline refers to a route laid out along a ridge. Since ridges determine wind direction and wind power depends on ridges, ridgelines are usually one of the key topographic control factors for the site selection of mountain wind farms. This is not only because ridgelines directly determine the quality of wind energy, but also because ridgelines often serve as road access routes, which can reduce the damage to forest land caused by the construction of new roads.

[0003] When multiple ridgelines exist in mountainous areas, determining the main ridgeline usually requires a comprehensive assessment combining topographic maps and field survey data. However, topographic maps are often influenced by field survey data. Therefore, accurate field survey data has a significant impact on the determination of the main ridgeline. Currently, field survey data collection often utilizes aerial equipment equipped with data acquisition units (such as airborne lidar, tilt cameras, and multispectral sensors) for remote sensing mapping to achieve large-scale rapid surveys and data acquisition. However, due to the abundance of wind energy resources along ridgelines, the presence of strong airflow when using aerial equipment to build data acquisition units can easily increase the dust content in the air, contaminating and obstructing optical components such as lenses and laser generator windows of the data acquisition units, thus affecting the accuracy of the data acquisition units. Furthermore, sand and gravel particles in the airflow can easily impact and rub against the optical components, causing damage to the data acquisition units, and in severe cases, even destroying them, ultimately leading to distorted field survey data.

[0004] In related technologies, to reduce the degree to which dust, sand, and other factors impair the accuracy of data acquisition units, cleaning equipment is often installed on aviation equipment to periodically clean the optical components of the data acquisition unit. For example, a related patent discloses a camera mounting device for aerial surveying and photography, with publication number CN117842405B. This patent uses a lens cleaning component and a roller brush to wipe the lens in real time, thereby reducing the impact of dust on the lens's data acquisition accuracy. However, in practical applications, it has been found that, on the one hand, the roller brush can easily cause the lens to get dirty when cleaning the lens in a humid environment. On the other hand, when wiping the lens, the presence of particulate impurities can cause scratches, wear, and other damage to the lens due to friction. Therefore, the actual test results are not ideal.

[0005] In view of this, the present invention proposes an automatic ridgeline extraction device and method suitable for mountain wind farm development, in order to solve the above-mentioned technical problems. Summary of the Invention

[0006] To overcome the shortcomings of existing technologies and solve the aforementioned technical problems, this invention proposes an automatic ridgeline extraction device and method suitable for mountain wind farm development.

[0007] The technical solution adopted by the present invention to solve its technical problem is: the automatic extraction device for main ridge line of mountain wind farm development described in the present invention includes a drone and a data collector installed on the drone;

[0008] It also includes a multi-stage cleaning mechanism, which is used to clean the optical end of the data collector in order to maintain the data acquisition effect of the data collector;

[0009] The multi-stage cleaning mechanism includes a mounting bracket, an impact assembly, and a roller brush assembly;

[0010] The mounting bracket is mounted on the collector and is used to provide mounting positions for the impact assembly and the roller brush assembly.

[0011] The impact assembly consists of a compression pump, a connecting pipe, and a nozzle connected in sequence. The impact assembly cleans the collector by spraying compressed airflow.

[0012] The roller brush assembly consists of an electric slide rail and a roller brush mounted on the electric slide rail, with the optical end of the collector located on the movement path of the roller brush.

[0013] Preferably, the electric slide rail is a ring structure, the nozzles are designed in multiples, and multiple nozzles are arranged in a ring around the periphery of the collector. The ring structure formed by multiple nozzles is concentrically nested with the electric slide rail. The nozzles and the roller brush are both arranged concentrically, and the nozzles are all located on the movement path of the roller brush.

[0014] Preferably, the nozzle includes a cleaning nozzle and an intercepting nozzle, both of which are designed in multiples and arranged around the collector. The output end of the cleaning nozzle is parallel to the optical end of the collector, and the intercepting nozzle is set at an angle. The multiple intercepting nozzles spray airflow to form a conical air curtain that covers the optical end of the collector.

[0015] Preferably, a coarse filter screen is installed at the input end of the compressor pump, a filter box is installed between the compressor pump and the connecting pipe, a fine filter screen is installed inside the filter box, and the connecting pipe is divided into two groups, with the two groups of connecting pipes installed on both sides of the fine filter screen respectively. The connecting pipe on the side that is not directly connected to the output end of the compressor pump is connected to a cleaning nozzle, and the connecting pipe on the side that is directly connected to the output end of the compressor pump is connected to an interception nozzle.

[0016] Preferably, an air distribution pipe is installed inside the filter box. The air distribution pipe is connected to the output end of the compression pump. The air distribution pipe is located at the top of the fine filter screen and is used to guide the airflow to impact the fine filter screen.

[0017] Preferably, a protective cover is installed on the mounting frame. The protective cover consists of a fixed part and a rotating part. The protective cover is a hemispherical structure that covers the collector. The fixed part is fixedly installed on the bottom of the drone. The fixed part has an opening on the side away from the drone. The rotating part is rotatably installed on the fixed part and is used to block the opening of the fixed part. Support legs are fixedly installed on the bottom of the drone. The support legs are all vertical telescopic structures. A pneumatic telescopic rod is fixedly installed on the fixed part. The pneumatic telescopic rod is connected to the inner cavity of the support leg through a pipe. A buffer spring is installed inside the support leg.

[0018] Preferably, the rotating part is composed of multiple arc-shaped plates, and the intercepting nozzles are all fixedly installed on the arc-shaped plates at the end away from the fixed part.

[0019] Preferably, the filter box has an adjustment groove, and the two ends of the adjustment groove are respectively connected to two sets of connecting pipes. A baffle is slidably installed in the adjustment groove. The baffle is used to adjust the connection ratio between the adjustment groove and the two sets of connecting pipes. A pressure telescopic rod is installed in the adjustment groove. The pressure telescopic rod is connected to a pneumatic telescopic rod through a pipe. The baffle is fixedly installed at the end of the pressure telescopic rod.

[0020] Preferably, an elastic conical plug and a capillary tube are fixedly installed at the end of the support leg. The capillary tube is located in the middle of the elastic conical plug, and the smallest end of the elastic conical plug faces the inner cavity of the support leg. In the initial state, the elastic conical plug is closed.

[0021] The method for automatic extraction of main ridge lines includes the following steps:

[0022] S1. Staff members control the drones to fly along a pre-set route in real time, and collect on-site survey data of the pre-defined area to provide data support for the determination of the main ridgeline.

[0023] S2. During the data acquisition process, the impact component and the roller brush component work together to simultaneously perform airflow impact cleaning and physical scraping cleaning on the optical end of the data acquisition device. At the same time, the impact component also forms an air curtain outside the optical end of the data acquisition device to protect the optical end of the data acquisition device.

[0024] S3. After data collection is complete, the drone descends, causing the support legs to retract and the pneumatic telescopic rod to extend, separating the rotating part from the fixed part, gradually achieving shielding and protection of the data collector for future use.

[0025] The beneficial effects of this invention are as follows:

[0026] 1. The automatic ridgeline extraction device and method for mountain wind farm development described in this invention, by setting an impact component, forms a double protection on the data collector by spraying airflow through a nozzle when the UAV is carrying the data collector for on-site data exploration. This enhances the efficiency of internal dust removal from the data collector and reduces the probability of external dust adhering to the data collector. At the same time, in conjunction with the roller brush component, it achieves a protective effect on the optical end of the data collector and improves the accuracy of data acquisition.

[0027] 2. The automatic ridgeline extraction device and method for mountain wind farm development described in this invention involves airflow flowing along two sets of connecting pipes into a cleaning nozzle and an intercepting nozzle, respectively. The air entering the cleaning nozzle is filtered through a fine filter, resulting in low dust content. This low dust content enhances the cleaning effect on the collector when it impacts it. The air with high dust content is ejected from the intercepting nozzle. This is because the airflow ultimately formed by the intercepting nozzle diffuses to the outside and does not move towards the collector under the impact of the airflow ejected by the cleaning nozzle, thus further enhancing the cleaning effect on the collector. Attached Figure Description

[0028] The invention will now be further described with reference to the accompanying drawings.

[0029] Figure 1 This is a perspective view of the present invention;

[0030] Figure 2 This is a perspective view of the invention from another angle;

[0031] Figure 3 It is a 3D view of the protective shield in the open state;

[0032] Figure 4 yes Figure 3 A magnified view of a section at point A in the middle;

[0033] Figure 5 It is a 3D view of the mounting bracket and the data collector assembly;

[0034] Figure 6 It is an assembly 3D view of the mounting bracket, protective cover and support legs;

[0035] Figure 7 This is a diagram of the internal structure of the protective shield;

[0036] Figure 8 It is a 3D view of the mounting bracket;

[0037] Figure 9 It is a 3D diagram of the supporting leg structure;

[0038] Figure 10 yes Figure 9 A magnified view of a section at point B in the middle;

[0039] Figure 11 This is a schematic diagram showing the connection between the compressor pump and the filter box;

[0040] Figure 12 This is a cross-sectional view of the filter box;

[0041] Figure 13 This is a flowchart of the method of the present invention;

[0042] In the diagram: 1. Drone; 11. Data collector; 2. Mounting frame; 21. Compressor pump; 22. Connecting pipe; 23. Cleaning nozzle; 24. Interception nozzle; 25. Coarse filter; 26. Electric slide rail; 27. Roller brush; 4. Filter box; 41. Fine filter; 42. Air distribution pipe; 43. Adjustment groove; 44. Baffle; 45. Pressure telescopic rod; 5. Fixing part; 51. Arc-shaped plate; 52. Support leg; 53. Buffer spring; 54. Pneumatic telescopic rod; 55. Elastic conical plug; 56. Capillary tube. Detailed Implementation

[0043] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0044] like Figures 1 to 13 As shown, the automatic extraction device for main ridge lines in mountain wind farm development described in this invention includes a drone 1 and a data collector 11 installed on the drone 1. The data collector 11 is used for field exploration. The data collector 11 is an acquisition device such as an airborne lidar, a tilting camera, or a multispectral sensor. The data collector 11 is detachably and fixedly installed on the drone 1. Depending on the different processes used in the field exploration, the staff can select the appropriate data collector 11 according to the exploration process.

[0045] It also includes a multi-stage cleaning mechanism, which is used to clean the optical end of the collector 11 in order to maintain the data acquisition effect of the collector 11.

[0046] The multi-stage cleaning mechanism includes a mounting frame 2, an impact assembly, and a roller brush assembly;

[0047] The mounting bracket 2 is mounted on the collector 11, and the mounting bracket 2 is used to provide mounting positions for the impact assembly and the roller brush assembly;

[0048] The impact assembly consists of a compression pump 21, a connecting pipe 22 and a nozzle connected in sequence. The impact assembly cleans the collector 11 by spraying compressed airflow.

[0049] The roller brush assembly consists of an electric slide rail 26 and a roller brush 27 mounted on the electric slide rail 26, with the optical end of the collector 11 located on the movement path of the roller brush 27.

[0050] In actual cleaning operations, air jet cleaning is effective at removing dust, sand and other dirt, while roller brush 27 is effective at removing oil and other dirt. Combining the two, in practical applications, using compressed air jet and roller brush 27 rotation cleaning simultaneously can effectively enhance the cleaning effect on the optical end of the collector 11.

[0051] The electric slide rail 26 is a ring structure. Multiple nozzles are arranged in a ring around the collector 11, and this ring structure is concentrically nested with the electric slide rail 26. Both the nozzles and the roller brush 27 are arranged concentrically, with each nozzle positioned along the movement path of the roller brush 27. In this invention, the electric slide rail 26 is the device that drives the roller brush 27 to move along a predetermined route. In this embodiment, the electric slide rail 26 mainly consists of a track, a slide table, and a driver. The driver is a roller driven by a drive motor. The slide table is slidably mounted on the track and moves periodically along the track under the action of the driver. The track is a ring structure, while the roller brush 27 is rotatably mounted on the slide table. Therefore, the roller brush 27 rotates along the center of the track, and during the rotation, it scrapes and cleans the optical end of the collector 11. It should be noted that the roller brush 27 is a rod-shaped structure with a rubber sheet fixedly mounted on its surface. When the roller brush 27 scrapes the optical end of the collector 11, it is mainly achieved through the rubber sheet. At the same time, because the nozzle is also arranged in a ring and coaxially sleeved with the electric slide rail 26 (concentric circle), and the nozzle is located outside the electric slide rail 26, during the rotation of the roller brush 27, the airflow sprayed by the nozzle not only cleans the optical end of the collector 11, but also impacts the roller brush 27, so as to reduce the probability of sand and gravel adhering to the roller brush 27 causing wear to the optical end of the collector 11.

[0052] The nozzle includes a cleaning nozzle 23 and an intercepting nozzle 24. Both the cleaning nozzle 23 and the intercepting nozzle 24 are designed in multiples and are arranged around the collector 11. The output end of the cleaning nozzle 23 is parallel to the optical end of the collector 11. The intercepting nozzle 24 is set at an angle. The multiple intercepting nozzles 24 spray airflow to form a conical air curtain that covers the optical end of the collector 11.

[0053] To further reduce the impact of dust, sand, and other contaminants on the collector 11, the nozzles in this invention are divided into cleaning nozzles 23 and intercepting nozzles 24. In practical applications, a compressor 21 fixedly installed on the mounting bracket 2 draws in outside air and then pumps it through a connecting pipe 22 to the cleaning nozzles 23 and intercepting nozzles 24. The fixedly installed cleaning nozzles 23 continuously impact the optical end of the collector 11 with airflow to clean the dust on the collector 11. The airflow from the multiple intercepting nozzles 24 forms a conical air curtain that surrounds the outside of the optical end of the collector 11, intercepting the outside airflow and reducing the probability of dust and sand moving towards the collector 11. At the same time, the airflow continuously sprayed by the cleaning nozzles 23 eventually diffuses outward from inside the air curtain formed by the intercepting nozzles 24, further obstructing the outside airflow and effectively reducing the probability of dust, sand, and other contaminants affecting the collector 11.

[0054] This invention, by setting up an impact component, forms a double protection on the data collector 11 when the UAV 1 is equipped with a data collector 11 for field data exploration by using a nozzle to spray airflow. This enhances the efficiency of removing internal dust from the data collector 11 and reduces the probability of external dust adhering to the data collector 11. At the same time, in conjunction with the roller brush component, it achieves a protective effect on the optical end of the data collector 11 and improves the accuracy of data acquisition.

[0055] In a preferred embodiment of the present invention, a coarse filter 25 is installed at the input end of the compressor pump 21, a filter box 4 is installed between the compressor pump 21 and the connecting pipe 22, a fine filter 41 is installed inside the filter box 4, and the connecting pipe 22 is divided into two groups, with the two groups of connecting pipes 22 respectively installed on both sides of the fine filter 41. The connecting pipe 22 on the side that is not directly connected to the output end of the compressor pump 21 is connected to a cleaning nozzle 23, and the connecting pipe 22 on the side that is directly connected to the output end of the compressor pump 21 is connected to an interception nozzle 24.

[0056] An air distribution pipe 42 is installed inside the filter box 4. The air distribution pipe 42 is connected to the output end of the compression pump 21. The air distribution pipe 42 is located at the top of the fine filter screen 41 and is used to guide the airflow to impact the fine filter screen 41.

[0057] To further reduce the probability of dust adhering to the collector 11, a coarse filter 25 is installed at the output end of the compressor 21 in this invention to perform preliminary impurity removal on the extracted external air. The preliminarily impurity-removed air is then pumped to the air distribution pipe 42 and sprayed onto the fine filter 41, continuously cleaning the fine filter 41 to reduce the probability of clogging. The continuously pumped airflow will cause the air pressure inside the filter box 4 to increase. Under the action of air pressure, the airflow flows along the two sets of connecting pipes 22 into… In the cleaning nozzle 23 and the intercepting nozzle 24, the air entering the cleaning nozzle 23 is filtered by the fine filter 41 and has a low dust content. When it impacts the collector 11, it can enhance the cleaning effect on the collector 11. The air with a high dust content is sprayed out by the intercepting nozzle 24. This is because the airflow ultimately formed by the intercepting nozzle 24 diffuses to the outside and will not move towards the collector 11 under the impact of the airflow sprayed by the cleaning nozzle 23, thus further enhancing the cleaning effect on the collector 11.

[0058] In a preferred embodiment of the present invention, a protective cover is installed on the mounting frame 2. The protective cover consists of a fixed part 5 and a rotating part. The protective cover is a hemispherical structure that covers the collector 11. The fixed part 5 is fixedly installed on the bottom of the drone 1. The fixed part 5 has an opening on the side away from the drone 1. The rotating part is rotatably installed on the fixed part 5. The rotating part is used to block the opening of the fixed part 5. Support legs 52 are fixedly installed on the bottom of the drone 1. The support legs 52 are all vertical telescopic structures. A pneumatic telescopic rod 54 is fixedly installed on the fixed part 5. The pneumatic telescopic rod 54 is connected to the inner cavity of the support leg 52 through a pipe. A buffer spring 53 is installed inside the support leg 52.

[0059] An elastic conical plug 55 and a capillary tube 56 are fixedly installed at the end of the support leg 52. The capillary tube 56 is located in the middle of the elastic conical plug 55. The smallest end of the elastic conical plug 55 faces the inner cavity of the support leg 52. In the initial state, the elastic conical plug 55 is closed.

[0060] Because the drone 1 is too close to the ground during takeoff and landing, sand and debris on the ground are prone to collide with the collector 11 due to the airflow generated by the rotating wings. To reduce damage to the collector 11, a protective cover is provided on the mounting frame 2 in this invention. The protective cover consists of a fixed part 5 and a rotating part. The fixed part 5 is directly fixed to the drone 1 and has an opening at its bottom. The rotating part is rotatably mounted on the fixed part 5 to seal the opening of the fixed part 5. During the descent of the drone 1, the air curtain formed by the interceptor nozzle 24 first cleans the ground. Then, the support leg 52 is pressed down, and the airflow inside is pumped into the pneumatic telescopic rod 54. When the airflow is pumped, it pushes the elastic conical plug 55 to deform. The enlarged opening of the conical plug 55 allows airflow to quickly enter the pneumatic telescopic rod 54, causing the rotating part to gradually rotate and seal the bottom opening of the fixed part 5, thus achieving comprehensive protection for the collector 11. When the drone 1 takes off, as the support leg 52 gradually loses its pressure, the support leg 52 tends to return to its original position under the action of the buffer spring 53. During this process, the airflow in the pneumatic telescopic rod 54 needs to flow back. Since the direction of airflow movement is opposite to the opening direction of the elastic conical plug 55 at this time, the elastic conical plug 55 closes, and the airflow can only flow back slowly through the capillary tube 56, thus delaying the opening time of the protective cover. During the process of the drone 1 leaving the ground, the sand and gravel affected by the airflow can be further reduced from causing damage to the collector 11.

[0061] It should be noted that the connecting pipe 22 and the pipe used in this invention are preferably made of steel wire reinforced flexible hose, so that the diameter of the connecting pipe 22 and the pipe is less deformed when the air pressure changes.

[0062] The rotating part is composed of multiple arc-shaped pieces 51, and the intercepting nozzles 24 are all fixedly installed on the arc-shaped pieces 51 at the end away from the fixed part 5.

[0063] The filter box 4 has an adjustment groove 43, and the two ends of the adjustment groove 43 are respectively connected to two sets of connecting pipes 22. A baffle 44 is slidably installed in the adjustment groove 43. The baffle 44 is used to adjust the connection ratio between the adjustment groove 43 and the two sets of connecting pipes 22. A pressure telescopic rod 45 is installed in the adjustment groove 43. The pressure telescopic rod 45 is connected to the pneumatic telescopic rod 54 through a pipe. The baffle 44 is fixedly installed at the end of the pressure telescopic rod 45.

[0064] As the rotating part formed by the arc-shaped plate 51 gradually seals the fixed part 5, the arc-shaped plate 51 gradually closes, causing the intercepting nozzle 24 to gradually become more horizontal. This reduces the taper of the conical air curtain formed by the intercepting nozzle 24, facilitating the interception of debris entering the protective cover during the descent of the UAV 1. During this process, the supporting leg 52 is compressed, causing the air inside the supporting leg 52 to be discharged towards the pressure telescopic rod 45 and the pneumatic telescopic rod 54. Under the action of air pressure, the pressure telescopic rod 45 extends, pushing the baffle 44 to move. This causes the opening of the connecting pipe 22 corresponding to the intercepting nozzle 24 to decrease, while the opening of the connecting pipe 22 corresponding to the cleaning nozzle 23 gradually increases. In other words, the proportion of air with a lower dust content entering the protective cover increases, reducing the accumulation of dust inside the protective cover. When the UAV 1 takes off, during the opening of the protective cover, the amount of air with a lower dust content gradually changes from large to small, facilitating the cleaning of the protective cover and the collector 11. Subsequently, the airflow of the air curtain formed by the intercepting nozzle 24 gradually increases, enhancing the interception efficiency of the airflow.

[0065] The method for automatic extraction of main ridge lines includes the following steps:

[0066] S1. Staff members control the drone 1 to fly along a pre-set route in real time, and collect data on the pre-defined area to provide data support for the determination of the main ridgeline.

[0067] S2. During the data acquisition process, the impact component and the roller brush component work together to simultaneously perform airflow impact cleaning and physical scraping cleaning on the optical end of the data acquisition unit 11. At the same time, the impact component also forms an air curtain outside the optical end of the data acquisition unit 11 to protect the optical end of the data acquisition unit 11.

[0068] S3. After the data collection is completed, the drone 1 descends, causing the support legs 52 to retract and the pneumatic telescopic rod 54 to extend. The rotating part and the fixed part 5 separate, gradually achieving shielding and protection for the data collector 11, so as to facilitate the next use.

[0069] When extracting the main ridgeline, the ridgelines are first determined one by one based on the collected field survey data and topographic maps (the determination of ridgelines is a conventional existing technology). Then, the endpoints and branch points of the ridgelines are taken as nodes, and the ridgelines between two adjacent nodes are taken as ridgeline segments. Then, the highest point among all ridgeline segments is determined, and the highest point is taken as the starting point. The ridgeline segments are extended to both ends until the endpoints of the ridgelines. If a branch node is passed during the extension, the ridgeline segment with the smallest average undulation slope is selected for extension, and the ridgeline segment passed during the extension is extracted as the main ridgeline. At the same time, in this invention, other methods in the existing technology can also be used to extract the main ridgeline.

[0070] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic ridgeline extraction device suitable for mountain wind farm development, comprising a drone (1) and a data collector (11) mounted on the drone (1). Its features are: It also includes a multi-level cleaning mechanism, which is used to clean the optical end of the collector (11) in order to maintain the data acquisition effect of the collector (11); The multi-stage cleaning mechanism includes a mounting bracket (2), an impact assembly, and a roller brush assembly; The mounting bracket (2) is mounted on the collector (11), and the mounting bracket (2) is used to provide mounting positions for the impact assembly and the roller brush assembly; The impact assembly consists of a compression pump (21), a connecting pipe (22), and a nozzle connected in sequence. The impact assembly cleans the collector (11) by spraying compressed airflow. The roller brush assembly consists of an electric slide rail (26) and a roller brush 27 mounted on the electric slide rail (26), and the optical end of the collector (11) is located on the movement path of the roller brush (27). The nozzles include cleaning nozzles (23) and intercepting nozzles (24). Both cleaning nozzles (23) and intercepting nozzles (24) are designed in multiples and are arranged around the collector (11). The output end of the cleaning nozzle (23) is parallel to the optical end of the collector (11). The intercepting nozzles (24) are set at an angle. The multiple intercepting nozzles (24) spray airflow to form a conical air curtain that covers the optical end of the collector (11). A coarse filter screen (25) is installed at the input end of the compressor pump (21). A filter box (4) is installed between the compressor pump (21) and the connecting pipe (22). A fine filter screen (41) is installed inside the filter box (4). The connecting pipe (22) is divided into two groups, and the two groups of connecting pipes (22) are installed on both sides of the fine filter screen (41). The connecting pipe (22) on the side that is not directly connected to the output end of the compressor pump (21) is connected to a cleaning nozzle (23), and the connecting pipe (22) on the side that is directly connected to the output end of the compressor pump (21) is connected to an intercepting nozzle (24). The filter box (4) is equipped with an air distribution pipe (42), which is connected to the output end of the compressor pump (21). The air distribution pipe (42) is located at the top of the fine filter screen (41) and is used to guide the airflow to impact the fine filter screen (41). A protective cover is installed on the mounting frame (2). The protective cover consists of a fixed part (5) and a rotating part. The protective cover is a hemispherical structure that covers the collector (11). The fixed part (5) is fixedly installed on the bottom of the drone (1). The fixed part (5) has an opening on the side away from the drone (1). The rotating part is rotatably installed on the fixed part (5). The rotating part is used to block the opening of the fixed part (5). A support leg (52) is fixedly installed on the bottom of the drone (1). The support leg (52) is a vertical telescopic structure. A pneumatic telescopic rod (54) is fixedly installed on the fixed part (5). The pneumatic telescopic rod (54) is connected to the inner cavity of the support leg (52) through a pipe. A buffer spring (53) is installed inside the support leg (52). The rotating part is composed of multiple arc-shaped plates (51), and the intercepting nozzles (24) are all fixedly installed on the arc-shaped plates (51) at the end away from the fixed part (5).

2. The automatic ridgeline extraction device for mountain wind farm development according to claim 1, characterized in that: The electric slide rail (26) is a ring structure. The nozzles are designed in multiple ways, and multiple nozzles are arranged in a ring around the collector (11). The ring structure formed by multiple nozzles is concentrically arranged with the electric slide rail (26). The nozzles and the roller brush (27) are arranged concentrically, and the nozzles are all located on the movement path of the roller brush (27).

3. The automatic ridgeline extraction device for mountain wind farm development according to claim 1, characterized in that: The filter box (4) is provided with an adjustment groove (43). The two ends of the adjustment groove (43) are respectively connected to two sets of connecting pipes (22). A baffle (44) is slidably installed in the adjustment groove (43). The baffle (44) is used to adjust the connection ratio between the adjustment groove (43) and the two sets of connecting pipes (22). A pressure telescopic rod (45) is installed in the adjustment groove (43). The pressure telescopic rod (45) is connected to the pneumatic telescopic rod (54) through a pipe. The baffle (44) is fixedly installed at the end of the pressure telescopic rod (45).

4. The automatic ridgeline extraction device for mountain wind farm development according to claim 3, characterized in that: An elastic conical plug (55) and a capillary tube (56) are fixedly installed at the end of the support leg (52). The capillary tube (56) is located in the middle of the elastic conical plug (55). The smallest end of the elastic conical plug (55) faces the inner cavity of the support leg (52). In the initial state, the elastic conical plug (55) is closed.

5. An automatic method for extracting the main ridgeline, characterized in that: This method uses the automatic ridgeline extraction device for mountain wind farm development as described in claim 4, and includes the following steps: S1. Staff members control the drone (1) to fly on a pre-set route in real time, and collect on-site survey data of the pre-defined area to provide data support for the determination of the main ridge line. S2. During the data acquisition process, the impact component and the roller brush (27) component work together to simultaneously perform airflow impact cleaning and physical scraping cleaning on the optical end of the collector (11). At the same time, the impact component also forms an air curtain outside the optical end of the collector (11) to protect the optical end of the collector (11). S3. After the data collection is completed, the drone (1) descends, causing the support leg (52) to retract and the pneumatic telescopic rod (54) to extend. The rotating part and the fixed part (5) separate, gradually achieving shielding and protection of the collector (11) for the next use.

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