Geographic information surveying and mapping unmanned aerial vehicle

Abstract

The invention belongs to the field of information surveying and mapping, and particularly relates to a geographic information surveying and mapping unmanned aerial vehicle which comprises a surveying and mapping unmanned aerial vehicle body, a surveying and mapping camera device, a protective baffle and a filter switching mechanism, and the filter switching mechanism comprises a supporting table, a driving assembly, a connecting arm, a mounting sleeve plate, a filter, a wiping assembly and a protective cover plate. The supporting table and the driving assembly are both installed at the bottom of the surveying and mapping unmanned aerial vehicle body, one ends of the multiple connecting arms are fixedly connected to the output end of the driving assembly in a circumferential array mode, the mounting sleeve plate is fixedly connected to the other ends of the connecting arms, the filter is installed on the inner wall of the mounting sleeve plate, and the two wiping assemblies are symmetrically installed at the bottom of the supporting table. One end of the protective cover plate is fixedly connected to the inner side wall of the supporting table, and the bottom of the protective cover plate is in abutting connection with the top of the mounting sleeve plate. Therefore, the problems that in the background technology, existing filter switching depends on manual operation or the switching precision is low, so that surveying and mapping work is interrupted, and the imaging edge is blurred are solved.

Description

Technical Field

[0001] This invention belongs to the field of information surveying and mapping, and in particular relates to a geographic information surveying and mapping drone. Background Technology

[0002] Currently, geographic information mapping drones are often equipped with multiple sets of functional filters to optimize the quality of mapping images in order to adapt to different complex shooting environments such as strong light and water surface reflection. Some drones achieve filter switching by manually changing filters or through simple mechanical transmission structures. By adjusting the filter type, the accuracy of mapping data in different scenarios can be improved to meet the basic geographic information collection needs.

[0003] The existing filter switching structures of surveying drones generally lack an efficient cleaning and protection mechanism that works in conjunction with the filter switching process. When drones are conducting field surveying operations, dust, suspended particles and other pollutants easily adhere to the filter surface. Even after switching, these pollutants remain on the filter surface, which not only causes problems such as blurry survey images and image quality distortion, but also requires staff to frequently stop the drone to manually disassemble and clean the filter, severely disrupting the continuity of surveying operations and reducing overall surveying efficiency. Summary of the Invention

[0004] The purpose of this invention is to address the problem that existing mapping drones, as mentioned in the background section, generally lack an efficient cleaning and maintenance mechanism that works in conjunction with the filter switching process. During field mapping operations, dust, suspended particles, and other contaminants easily adhere to the filter surface, and these contaminants remain on the filter surface even after switching. This not only leads to problems such as blurred and distorted mapping images, but also requires frequent shutdowns for manual filter removal and cleaning, severely disrupting the continuity of mapping operations and reducing overall mapping efficiency. Therefore, this invention provides a geographic information mapping drone.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a geographic information mapping drone, comprising a mapping drone body, a mapping camera device, a protective baffle, and a filter switching mechanism, wherein the mapping camera device is installed at the bottom of the mapping drone body, the protective baffle is fixedly connected to the bottom of the mapping drone body, and a through groove is provided at the top of the protective baffle, the lens of the mapping camera device is placed in the through groove, the filter switching mechanism includes a support platform, a drive assembly, a connecting arm, a mounting sleeve, a filter, a wiping assembly, and a protective cover, wherein the support platform and the drive assembly are both installed at the bottom of the mapping drone body, one end of a plurality of connecting arms is fixedly connected in a circumferential array to the output end of the drive assembly, the mounting sleeve is fixedly connected to the other end of the connecting arm, the filter is installed on the inner wall of the mounting sleeve, and two sets of wiping assemblies are provided and symmetrically installed at the bottom of the support platform, one end of the protective cover is fixedly connected to the inner side wall of the support platform, and the bottom of the protective cover is in contact with the top of the mounting sleeve.

[0006] Furthermore, the drive assembly includes a mounting plate, a first drive device, and a drive head. The mounting plate is fixedly connected to the bottom of the main body of the mapping UAV. The first drive device is installed on the bottom of the mounting plate. One end of the drive head is rotatably connected to the top of the support platform. The other end of the drive head is fixedly connected to the output end of the first drive device. One end of a plurality of connecting arms is fixedly connected to the outer wall of the drive head in a circumferential array.

[0007] Furthermore, the wiping assembly includes a second driving device, a rotating head, and a wiping pad. The second driving device is installed at the bottom of the support platform, and a rotating groove is provided at the top of the support platform. The rotating head is rotatably connected to the inner wall of the rotating groove via a support arm, and the wiping pad is installed on the top of the rotating head via Velcro.

[0008] Furthermore, it also includes a dust removal assembly, which includes a dust collection box, a fan, and a dust collection trough. The dust collection box and the fan are both installed on the outer wall of the support platform. The output end of the fan is connected to the dust collection box through a pipe. The dust collection trough is located on the top of the support platform. A connecting hose is provided between the dust collection trough and the input end of the fan, and the two are connected through the connecting hose.

[0009] Furthermore, the center point of the through groove is located on the rotation track of the plurality of filters, and the inner diameter of the through groove is smaller than the inner diameter of the mounting sleeve.

[0010] Furthermore, the bottom of the protective cover is covered with a wiping cloth.

[0011] Furthermore, the inner wall of the rotating groove is provided with sliding slots that match the ends of the multiple support arms.

[0012] Furthermore, the dust collection slot is located on the rotating track of the plurality of filters.

[0013] Compared with existing technologies, the advantages of this geographic information mapping drone are: 1. This invention achieves automatic switching and precise alignment of different functional filters through a filter switching mechanism composed of a drive component, a support platform, a circumferential array connecting arm, and a through-slot positioning structure. The first drive device of the drive component drives the connecting arm to rotate stably through the drive head, the support platform ensures the stability of the component's position under vibration, and the center of the through-slot coincides with the filter rotation track to ensure precise matching between the filter and the lens. This solves the problem in the prior art where filter switching relies on manual operation or has low switching accuracy, resulting in interruption of surveying operations and blurred imaging edges.

[0014] 2. This invention achieves coordinated operation of "preliminary wiping - deep cleaning - active dust removal" during filter switching and use through a multi-stage cleaning mechanism consisting of a protective cover, two sets of symmetrical wiping components and a dust removal component. The protective cover initially removes floating dust during switching, the wiping components achieve thorough cleaning through a stable wiping pad, and the dust removal component simultaneously removes dust to avoid secondary pollution. This solves the problem in the background technology that dust easily adheres to the filter surface, requiring frequent shutdowns for manual cleaning, which interrupts the continuity of surveying and mapping operations.

[0015] 3. This invention achieves physical protection of the lens of the surveying and mapping camera device, reduction of component vibration interference, and stable movement of the cleaning component through a protection and stabilization mechanism composed of a protective baffle, a drive component mounting plate, and a sliding slot for the wiping component. The protective baffle blocks the impact of debris and guides airflow to reduce imaging interference, the mounting plate reduces the impact of vibration on drive accuracy, and the sliding slot prevents the support arm from wobbling and ensures uniform cleaning. This solves the problems in the background technology where the lens is easily affected by external impacts and airflow vibrations, which affect the imaging quality, and the cleaning effect is poor due to the unstable movement of the cleaning component. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a geographic information mapping drone provided by the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the structure of a geographic information mapping drone provided by the present invention. Figure 2 ; Figure 3 This is a schematic diagram of the structure of a through-slot for geographic information mapping UAV provided by the present invention; Figure 4 This is a schematic diagram of the structure of a dust removal component for a geographic information mapping UAV provided by the present invention; Figure 5 This invention provides a geographic information mapping drone. Figure 4 A magnified structural diagram of part A in the middle.

[0017] As shown in the figure: 1. Main body of the surveying drone; 2. Surveying camera device; 3. Protective baffle; 31. Through channel; 4. Filter switching mechanism; 41. Support platform; 411. Rotating groove; 42. Drive assembly; 421. Mounting plate; 422. First drive device; 423. Drive head; 43. Connecting arm; 44. Mounting sleeve; 45. Filter; 46. Wiping assembly; 461. Second drive device; 462. Rotating head; 4621. Support arm; 463. Wiping pad; 47. Protective cover; 5. Dust removal components; 51. Dust collection box; 52. Fan; 53. Dust suction trough. Detailed Implementation

[0018] The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.

[0019] like Figures 1-5 As shown, this application proposes a geographic information mapping drone, which may include a mapping drone body 1, a mapping camera device 2, a protective baffle 3, and a filter switching mechanism 4.

[0020] The surveying camera device 2 is installed at the bottom of the surveying drone body 1, and the protective baffle 3 is fixedly connected to the bottom of the surveying drone body 1. The top of the protective baffle 3 is provided with a through groove 31, and the lens of the surveying camera device 2 is placed in the through groove 31.

[0021] It should be noted that the protective baffle 3 described in this embodiment not only provides physical protection for the lens of the surveying and mapping camera device 2, preventing external debris from directly impacting the lens during the drone's flight, but also guides airflow through its own structure, reducing the interference of high-speed airflow on the air stability near the lens, thereby reducing the impact of airflow disturbance on the clarity of the surveying and mapping image. At the same time, the setting of the through slot 31 precisely matches the shooting range of the lens, ensuring that the lens can capture geographic information normally, and also using the edge of the through slot 31 to assist in limiting the field of view of the lens, preventing irrelevant light from entering from the side of the lens and causing glare in the image, further improving the image quality stability of the surveying and mapping image.

[0022] The filter switching mechanism 4 includes a support platform 41, a drive assembly 42, a connecting arm 43, a mounting plate 44, a filter 45, a wiping assembly 46, and a protective cover 47. The support platform 41 and the drive assembly 42 are both installed at the bottom of the main body 1 of the surveying UAV. One end of multiple connecting arms 43 is fixedly connected to the output end of the drive assembly 42 in a circumferential array. The mounting plate 44 is fixedly connected to the other end of the connecting arms 43. The filter 45 is installed on the inner wall of the mounting plate 44. Two sets of wiping assemblies 46 are provided and symmetrically installed at the bottom of the support platform 41. One end of the protective cover 47 is fixedly connected to the inner side wall of the support platform 41, and the bottom of the protective cover 47 is in contact with the top of the mounting plate 44.

[0023] It should be noted that the support platform 41 described in this embodiment serves as the core mounting base for the filter switching mechanism 4. It integrates and fixes the drive assembly 42, the wiping assembly 46, and the protective cover 47, ensuring that each component maintains a stable relative position under the vibration environment of the UAV flight and preventing filter switching misalignment caused by vibration. The circumferential array design of the connecting arm 43 enables multiple mounting sleeves 44 and filters 45 to form a uniformly distributed rotation trajectory around the output end of the drive assembly 42, ensuring that any filter 45 can be accurately moved to directly below the lens when the drive assembly 42 is driven. To improve the accuracy of filter switching, the protective cover 47 and the mounting sleeve 44 are in contact connection. This not only provides a top shield for the filter 45 when not switching, preventing dust and moisture from falling directly onto the filter surface, but also allows for preliminary cleaning of the top of the mounting sleeve 44 through contact friction during filter switching. This reduces the risk of impurities contaminating other components as the mounting sleeve 44 rotates. Meanwhile, two symmetrically arranged wiping components 46 can simultaneously perform cleaning operations from both sides of the filter 45, ensuring that the filter surface is clean without any dead corners, further guaranteeing the filter's light transmittance and improving the quality of surveying and mapping imaging.

[0024] Specifically, during surveying operations, the surveying camera 2, installed at the bottom of the surveying drone body 1, captures geographic information through the through-slot 31 on the protective baffle 3. The protective baffle 3 provides physical protection for the lens to prevent external debris from directly impacting it during drone flight. Furthermore, its structure guides airflow to reduce interference from high-speed airflow on the air stability near the lens. Simultaneously, the through-slot 31 precisely matches the lens's shooting range and uses its edges to further limit the lens's field of view, preventing unwanted light from entering from the side and causing imaging glare, thus ensuring basic image quality. This allows for adaptation to different shooting environments. When switching filter 45, the drive component 42 installed at the bottom of the surveying UAV body 1 is activated, driving the connecting arm 43 connected by the circumferential array at its output end to rotate. The connecting arm 43 then drives the mounting sleeve 44 at its end and the filter 45 installed on the inner wall to move along the circumferential trajectory, so that the target filter 45 is accurately moved to directly below the lens. The support platform 41, as the core mounting base of the filter switching mechanism 4, ensures that the drive component 42, the wiping component 46 and the protective cover 47 maintain relative positional stability under flight vibration environment, and avoids the filter 45 from being misaligned due to vibration. During this process, the support platform 41 is fixed. The bottom of the protective cover 47 on the inner wall is always in contact with the top of the mounting sleeve 44. This serves two purposes: in the non-switching state, it provides a top shield to prevent dust and moisture from directly falling onto the surface of the filter 45; during filter switching, the contact friction provides initial cleaning to the top of the mounting sleeve 44 and the surface of the filter 45, reducing the risk of impurities contaminating other components as the mounting sleeve 44 rotates. When deep cleaning of the filter 45 is required, two sets of symmetrically mounted wiping components 46 on the bottom of the support platform 41 operate synchronously, cleaning the surface of the filter 45 from both sides without any blind spots, ensuring the light transmittance of the filter 45. Maintaining clear imaging, this working principle effectively solves the problem of the lack of a coordinated cleaning guarantee mechanism in the filter switching structure of existing surveying drones in the background art through the initial cleaning of the protective cover plate 47, the deep cleaning of the wiping component 46, the coordinated design of the filter 45 switching process, and the guarantee of the stability of each component by the support platform 41. It avoids the blurring of surveying images and the distortion of image quality caused by dust, suspended particles and other contaminants attached to the filter 45. At the same time, it eliminates the need for staff to frequently stop the machine to manually disassemble and clean the filter 45, avoiding interruption of the surveying operation and significantly improving the overall surveying efficiency and image quality.

[0025] Furthermore, the drive assembly 42 includes a mounting plate 421, a first drive device 422, and a drive head 423. The mounting plate 421 is fixedly connected to the bottom of the main body 1 of the mapping UAV. The first drive device 422 is installed on the bottom of the mounting plate 421. One end of the drive head 423 is rotatably connected to the top of the support platform 41. The other end of the drive head 423 is fixedly connected to the output end of the first drive device 422. One end of a plurality of connecting arms 43 is fixedly connected to the outer wall of the drive head 423 in a circumferential array.

[0026] It should be noted that the mounting plate 421 described in this embodiment not only provides a stable mounting carrier for the first drive device 422, but also weakens the transmission of vibrations generated during the flight of the UAV to the first drive device 422 through its firm connection with the main body 1 of the surveying UAV, thus avoiding the impact of vibration on the drive accuracy. The structural design of the drive head 423, with one end rotatably connected to the support platform 41 and the other end fixedly connected to the first drive device 422, forms a bidirectional support, making it less likely for the drive head 423 to deviate when driving the connecting arm 43 to rotate, further ensuring the stability of the filter 45 switching trajectory. At the same time, the circumferentially arrayed connecting arms 43 can evenly distribute the driving force of the drive head 423, avoiding damage caused by excessive force on a single connecting arm 43, and extending the service life of the components.

[0027] Specifically, when it is necessary to switch the filter 45, the first driving device 422 starts and outputs power, driving the driving head 423 fixedly connected to it to rotate. Since the other end of the driving head 423 is rotatably connected to the top of the support platform 41, the driving head 423 can rotate stably along the fixed axis, thereby driving the connecting arm 43 of the outer wall circumferential array to rotate synchronously. The connecting arm 43 then drives the mounting sleeve 44 at the end and the filter 45 to move below the lens. This structure solves the problems of unstable driving and low switching accuracy of the existing filter switching structure in the background technology. It eliminates the need for staff to manually adjust the filter position, avoiding work interruption caused by manual operation. At the same time, through the vibration damping effect of the mounting plate 421 and the bidirectional support of the driving head 423, it ensures that the filter 45 can be accurately switched to the designated position, ensuring the quality of surveying and mapping imaging. The first driving device 422 is a drive motor.

[0028] Furthermore, the wiping assembly 46 includes a second drive device 461, a rotating head 462, and a wiping pad 463. The second drive device 461 is installed at the bottom of the support platform 41, and a rotating groove 411 is provided on the top of the support platform 41. The rotating head 462 is rotatably connected to the inner wall of the rotating groove 411 via a support arm 4621, and the wiping pad 463 is installed on the top of the rotating head 462 via Velcro.

[0029] It should be noted that the second driving device 461 described in this embodiment is installed at the bottom of the support platform 41, which can make full use of the idle space under the support platform 41, avoid spatial interference with other components on the top of the support platform 41, optimize the overall structural layout, and the rotating groove 411 provides motion guidance for the support arm 4621, so that the rotating head 462 always stays on the preset trajectory when rotating, ensuring that the wiping pad 463 can evenly contact the surface of the filter 45. The wiping pad 463 is installed by Velcro, which not only facilitates quick disassembly and replacement, but also allows for flexible replacement of wiping pads 463 of different materials according to the material of the filter 45 and cleaning needs, avoiding scratching the surface of the filter with hard wiping pads 463, while ensuring the cleaning effect.

[0030] Specifically, when contaminants adhere to the surface of the filter 45 and need cleaning, the second drive device 461 starts and drives the rotating head 462 to rotate in the rotating groove 411 via the support arm 4621. The wiping pad 463 on the top of the rotating head 462 then contacts the surface of the filter 45 and generates relative friction, thereby removing dust and stains from the surface of the filter 45. This structure solves the problem in the prior art that existing surveying drones need to be stopped frequently for manual disassembly and cleaning of the filter. Automatic cleaning of the filter can be achieved without interrupting the surveying operation. At the same time, the wiping pad 463 connected by Velcro is convenient for maintenance and replacement, avoiding the failure of the cleaning function due to damage to the cleaning components, ensuring that the filter 45 continues to maintain good light transmittance, and improving the quality of the surveying image. The second drive device 461 is a drive motor.

[0031] Furthermore, it also includes a dust removal component 5, which includes a dust collection box 51, a fan 52, and a dust collection trough 53. The dust collection box 51 and the fan 52 are both installed on the outer wall of the support platform 41. The output end of the fan 52 is connected to the dust collection box 51 through a pipe. The dust collection trough 53 is opened on the top of the support platform 41. A connecting hose is provided between the dust collection trough 53 and the input end of the fan 52, and they are connected through the connecting hose.

[0032] It should be noted that the dust collection box 51 and the fan 52 described in this embodiment are installed on the outer wall of the support platform 41. This facilitates the later disassembly and cleaning of the dust collection box 51 by the staff, and does not occupy the working space of the filter 45 and the wiping component 46 on the top of the support platform 41. The pipe connection between the fan 52 and the dust collection box 51 ensures that the sucked-in dust can be stably transported into the dust collection box 51, avoiding dust leakage and secondary pollution. The connecting hose between the suction trough 53 and the fan 52 has a certain degree of flexibility, which can adapt to the structural layout of the support platform 41, ensuring that the suction trough 53 can be accurately opened at the key position near the filter 45, thereby improving the suction efficiency.

[0033] Specifically, during the switching of filter 45 or the operation of wiping assembly 46, fan 52 starts and generates negative pressure, drawing in air and suspended dust from suction tank 53 through connecting hose. The drawn-in dust is then transported by fan 52 to dust collection box 51 for collection. This structure solves the problem of dust, suspended particles and other pollutants easily adhering to the filter surface in the prior art. By actively suctioning, pollutants are removed before they adhere or just after they adhere, reducing the cleaning burden on wiping assembly 46. At the same time, it avoids blurry images caused by dust accumulation on the filter 45 surface, eliminating the need for frequent filter cleaning, ensuring the continuity of surveying operations, and improving overall surveying efficiency.

[0034] Furthermore, the center point of the through groove 31 is located on the rotation track of the multiple filters 45, and the inner diameter of the through groove 31 is smaller than the inner diameter of the mounting sleeve 44.

[0035] It should be noted that the center point of the through groove 31 described in this embodiment coincides with the rotation track of the filter 45, which ensures that when any filter 45 rotates to the bottom of the through groove 31, its center is completely aligned with the center of the through groove 31, thereby accurately matching the center of the lens of the surveying and imaging device 2. This avoids blurry imaging edges or obstruction of the field of view caused by filter offset. The design that the inner diameter of the through groove 31 is smaller than the inner diameter of the mounting sleeve 44 allows the mounting sleeve 44 to completely cover the edge area of ​​the through groove 31, forming a ring shield to prevent external dust and moisture from entering through the gap between the through groove 31 and the mounting sleeve 44, thus providing double protection for the lens and the filter 45.

[0036] Specifically, when the drive assembly 42 moves the filter 45 along the rotating track, since the center of the through slot 31 is on the rotating track, the filter 45 can be precisely moved to the underside of the through slot 31. This ensures that when the lens takes pictures through the through slot 31 and the filter 45, the field of view completely covers the effective area of ​​the filter 45. At the same time, the mounting plate 44, because its inner diameter is larger than that of the through slot 31, can completely block the edge of the through slot 31. This structure solves the problems of low alignment accuracy and easy dust ingress after filter switching in the background technology, avoids the decline in image quality caused by filter misalignment, and reduces dust from entering through the gaps in the through slot 31, thereby reducing the probability of contamination of the filter and lens, reducing the cleaning frequency, and ensuring the stable progress of surveying and mapping operations.

[0037] Furthermore, the bottom of the protective cover 47 is covered with a wiping cloth.

[0038] It should be noted that the wiping cloth covering the bottom of the protective cover 47 described in this embodiment is made of a soft and highly absorbent material. It can remove the floating dust on the mounting sleeve 44 and the edge of the filter 45 by friction when it comes into contact with the top of the mounting sleeve 44, without scratching the surface of the filter 45 or the appearance of the mounting sleeve 44. At the same time, the covering design of the wiping cloth allows the protective cover 47 to not only block dust in the non-switching state, but also form a tighter fit with the mounting sleeve 44 through the slight elasticity of the wiping cloth, further enhancing the dustproof effect and preventing fine dust from seeping in from the contact gap between the two.

[0039] Specifically, when the filter 45 is not switched, the wiping cloth at the bottom of the protective cover 47 is tightly fitted with the top of the mounting sleeve 44, preventing external dust from falling onto the surface of the filter 45. When the drive assembly 42 drives the mounting sleeve 44 and the filter 45 to rotate and switch, the top of the mounting sleeve 44 and the wiping cloth slide relative to each other, and the wiping cloth wipes away the floating dust on the top of the mounting sleeve 44 and the edge of the filter 45. This structure solves the problem of dust residue during filter switching in the prior art. There is no need to set up an additional independent preliminary cleaning component. The original shielding function of the protective cover 47 is used to achieve preliminary cleaning simultaneously, reducing the residue of contaminants on the filter surface, reducing the frequency of subsequent deep cleaning, and ensuring the clarity of the mapping and imaging.

[0040] Furthermore, the inner wall of the rotating groove 411 is provided with sliding slots that match the ends of the multiple support arms 4621.

[0041] It should be noted that the sliding groove described in this embodiment matches the end of the support arm 4621, which can precisely limit the movement of the support arm 4621, preventing the support arm 4621 from wobbling up and down or shifting left and right during rotation. This ensures that the rotating head 462 is always kept at a height parallel to the surface of the filter 45, so that the wiping pad 463 can apply pressure evenly to the surface of the filter 45, avoiding incomplete cleaning or local scratches on the filter due to uneven pressure. At the same time, the sliding groove can also reduce the direct friction between the support arm 4621 and the inner wall of the rotating groove 411, reduce component wear, and extend the service life of the support arm 4621 and the rotating groove 411.

[0042] Specifically, when the second drive device 461 drives the rotating head 462 to rotate, the end of the support arm 4621 moves along the sliding groove on the inner wall of the rotating groove 411. The sliding groove guides and limits the support arm 4621, so that the rotating head 462 stably drives the wiping pad 463 to contact the surface of the filter 45 and rub it evenly. This structure solves the problem of poor cleaning effect caused by unstable movement of the wiping component 46 in the prior art. It avoids the wiping pad 463 from not being able to fully contact the surface of the filter or from excessive local friction caused by the shaking of the support arm 4621, ensuring that the surface of the filter 45 is clean without dead corners. At the same time, it reduces component wear and ensures that the wiping component 46 works stably for a long time without frequent maintenance and replacement.

[0043] Furthermore, the dust collection slot 53 is located on the rotating track of multiple filters 45.

[0044] It should be noted that the dust collection groove 53 described in this embodiment is located on the rotating track of the filter 45, which ensures that the surface and surrounding area of ​​the filter 45 are always within the dust collection range of the dust collection groove 53 during the switching process. Whether it is dust raised on the surface of the filter 45 or suspended particles in the surrounding air, they can be sucked up in time. At the same time, this position design can also work in conjunction with the wiping component 46. When the wiping component 46 wipes the surface of the filter 45, the dust raised can be immediately sucked away by the nearby dust collection groove 53, preventing the dust from falling back onto the surface of the filter 45 and causing secondary pollution, thus further improving the cleaning effect.

[0045] Specifically, the working principle of this invention is as follows: when the drive component 42 moves the filter 45 along the rotating track, the dust collection groove 53 located on the rotating track continuously generates negative pressure under the action of the fan 52, sucking in the dust attached to the surface of the filter 45 and suspended particles in the surrounding air. When the wiping component 46 cleans the filter 45, the dust raised during the wiping process can also be sucked away by the dust collection groove 53 in time. This structure solves the problem of dust easily adhering to the filter in the background technology. By setting the dust collection groove 53 on the filter rotating track, the filter is protected from dust throughout the process. Together with the wiping component 46, a dual cleaning effect of "wiping + dust collection" is formed, avoiding secondary dust pollution, reducing the number of times the filter is cleaned, ensuring that the filter 45 continues to maintain good light transmittance, and improving the quality of the surveying image and the efficiency of the operation.

[0046] In summary, when this geographic information mapping UAV is working, during mapping operations, the mapping camera device 2 at the bottom of the UAV body 1 captures geographic information through the through-slot 31 of the protective baffle 3. The protective baffle 3 provides physical protection for the lens to avoid impacts from external debris during flight, and guides airflow to reduce airflow disturbance near the lens. The through-slot 31 precisely matches the lens's shooting range and avoids glare caused by side light through edge limiting, ensuring basic imaging quality. When it is necessary to switch filters 45 to adapt to different environments, the first drive device 422 of the drive assembly 42 is stably installed at the bottom of the UAV body 1 through the mounting plate 421. Its output power drives the drive head 423 to rotate. The other end of the drive head 423 rotates and connects to the support platform 41 to form bidirectional support, thereby driving the connecting arm 43 of the outer wall circumferential array, the end mounting sleeve 44, and the filter 45 to move along the circumferential trajectory, so that the target filter 45 is precisely moved to the bottom of the through-slot 31. The center of the through-slot 31 is located on the filter rotation track and its inner diameter is smaller than the inner diameter of the mounting sleeve 44, ensuring alignment and preventing dust from entering through the gap. The support platform 41 serves as the core installation base, ensuring the stability of the drive assembly 42, wiping assembly 46, and protective cover 47 under vibration conditions, preventing misalignment during filter switching. During filter switching, the wiping cloth covering the bottom of the protective cover 47 on the inner wall of the support platform 41 rubs against the top of the mounting sleeve 44, both blocking dust when not switching and initially cleaning the surface of the filter 45 and the top of the mounting sleeve 44 during switching. If deep cleaning is required, the two sets of wiping assemblies 46 at the bottom of the support platform 41 are activated, and the second drive device 46... 1. The rotating head 462 moves along the sliding groove on the inner wall of the rotating groove 411 via the support arm 4621. The sliding groove limits the movement of the support arm 4621 to prevent it from shaking. The wiping pad 463, which is installed on the top of the rotating head 462 via Velcro, makes even contact with the surface of the filter 45 and rubs it clean. At the same time, the fan 52 of the dust removal component 5 starts, and the dust suction tank 53 located on the rotating track of the filter 45 sucks in the dust on the surface of the filter and the surrounding area through the connecting hose. The dust is then transported to the dust collection box 51 through the pipeline for collection. This works in conjunction with the wiping component 46 to prevent secondary dust pollution. This working principle effectively solves the problem of the lack of a coordinated cleaning guarantee mechanism in the filter switching structure of existing surveying drones in the background technology. It achieves this through the initial cleaning of the protective cover plate 47, the deep cleaning of the wiping component 46, the active dust collection of the dust removal component 5, and the full coordination of the filter switching process. It also addresses the structural design of each component, such as the alignment of the through slot 31 and the limiting of the sliding slot. This avoids the blurring of images caused by the adhesion of contaminants to the filter, eliminates the need for frequent shutdowns for manual cleaning, ensures the continuity of surveying operations, and significantly improves surveying efficiency and image quality.

[0047] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A geographic information mapping drone, characterized in that, It includes the main body of the surveying drone (1), the surveying camera device (2), the protective baffle (3), and the filter switching mechanism (4), among which, The surveying camera device (2) is installed at the bottom of the surveying drone body (1), the protective baffle (3) is fixedly connected to the bottom of the surveying drone body (1), and the top of the protective baffle (3) is provided with a through groove (31), and the lens of the surveying camera device (2) is placed in the through groove (31). The filter switching mechanism (4) includes a support platform (41), a drive assembly (42), a connecting arm (43), a mounting plate (44), a filter (45), a wiping assembly (46), and a protective cover (47), wherein, The support platform (41) and the drive assembly (42) are both installed at the bottom of the main body (1) of the mapping UAV. One end of the multiple connecting arms (43) is fixedly connected to the output end of the drive assembly (42) in a circumferential array. The mounting sleeve (44) is fixedly connected to the other end of the connecting arm (43). The filter (45) is installed on the inner wall of the mounting sleeve (44). Two sets of wiping assemblies (46) are provided and symmetrically installed at the bottom of the support platform (41). One end of the protective cover (47) is fixedly connected to the inner side wall of the support platform (41), and the bottom of the protective cover (47) is in contact with the top of the mounting sleeve (44).

2. The geographic information mapping UAV according to claim 1, characterized in that, The drive assembly (42) includes a mounting plate (421), a first drive device (422), and a drive head (423), wherein, The mounting plate (421) is fixedly connected to the bottom of the main body (1) of the surveying UAV. The first drive device (422) is installed on the bottom of the mounting plate (421). One end of the drive head (423) is rotatably connected to the top of the support platform (41). The other end of the drive head (423) is fixedly connected to the output end of the first drive device (422). One end of the multiple connecting arms (43) is fixedly connected to the outer wall of the drive head (423) in a circumferential array.

3. The geographic information mapping UAV according to claim 2, characterized in that, The wiping assembly (46) includes a second drive device (461), a rotating head (462), and a wiping pad (463), wherein, The second drive device (461) is installed at the bottom of the support platform (41), and a rotating groove (411) is provided on the top of the support platform (41). The rotating head (462) is rotatably connected to the inner wall of the rotating groove (411) through the support arm (4621), and the wiping pad (463) is installed on the top of the rotating head (462) through Velcro.

4. The geographic information mapping UAV according to claim 1, characterized in that, It also includes a dust removal component (5), which includes a dust collection box (51), a fan (52), and a dust collection trough (53), wherein, The dust collection box (51) and the fan (52) are both installed on the outer wall of the support platform (41). The output end of the fan (52) is connected to the dust collection box (51) through a pipe. The dust suction trough (53) is opened on the top of the support platform (41). A connecting hose is provided between the dust suction trough (53) and the input end of the fan (52), and they are connected through the connecting hose.

5. The geographic information mapping UAV according to claim 2, characterized in that, The center point of the through groove (31) is located on the rotation track of the plurality of filters (45), and the inner diameter of the through groove (31) is smaller than the inner diameter of the mounting sleeve (44).

6. The geographic information mapping UAV according to claim 2, characterized in that, The bottom of the protective cover (47) is covered with a wiping cloth.

7. The geographic information mapping UAV according to claim 3, characterized in that, The inner wall of the rotating groove (411) is provided with sliding slots that match the ends of the multiple support arms (4621).

8. The geographic information mapping UAV according to claim 4, characterized in that, The dust collection slot (53) is located on the rotating track of the plurality of filters (45).

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