Land surveying and mapping unmanned aerial vehicle and use method thereof

Abstract

The invention belongs to the technical field of territorial surveying and mapping, and particularly relates to a territorial surveying and mapping unmanned aerial vehicle and a using method thereof. The land surveying and mapping unmanned aerial vehicle comprises an unmanned aerial vehicle body, a rotating disc type camera shooting assembly and a rotating disc type protection assembly arranged on the outer side of the rotating disc type camera shooting assembly in a sleeving mode are installed in the unmanned aerial vehicle body, and a flannelette layer used for wiping and cleaning a camera of the rotating disc type camera shooting assembly is installed on the inner side of the rotating disc type protection assembly; the camera is automatically wiped by controlling the relative rotation of the rotating disc type protection assembly and the rotating disc type camera shooting assembly, the operation is tedious, and the cleaning effect is good; meanwhile, the rotating disc type camera shooting assembly is provided with a plurality of cameras, the cameras can be switched according to surveying and mapping requirements, and the camera shooting angle can be rapidly adjusted.

Description

Technical Field

[0001] The present invention belongs to the technical field of land surveying and mapping, and in particular relates to a land surveying and mapping unmanned aerial vehicle and a method for using the same. Background Art

[0002] Land surveying and mapping refers to the use of computer technology, optoelectronic technology, network communication technology, space science, information science as the basis, with the global positioning system (GPS), remote sensing (RS), and geographic information system (GIS) as the core technology, to obtain graphics and position information reflecting the current status of the ground through measurement methods based on the existing feature points and boundaries on the ground, for the planning and design of engineering construction and administrative management. The camera of the drone shooting device of traditional land surveying and mapping is prone to dust accumulation, resulting in poor shooting quality, thus affecting the quality of surveying and mapping.

[0003] To this end, the patent specification with publication number CN215884103U discloses a drone shooting device for land surveying and mapping, including a drone body, a protective box is arranged at the bottom of the drone body, a fixed guide rail is arranged on one side of the protective box, a screw rod is rotatably connected inside the fixed guide rail, and a push plate is threadedly connected to the outer copper drum of the screw rod. The drone shooting device for land surveying and mapping is provided with a cleaning box, a second servo motor and a threaded rod, so that the second servo motor is started, the threaded rod drives the slider to move, and the slider drives the cleaning box to move. At this time, the output end of the third servo motor drives the cleaning roller to rotate, so that the cleaning roller cleans the lens on the shooting module, one end of the air pump sucks it in through the dust suction pipe, and then the other end of the air pump discharges it into the hose to prevent dust from accumulating at the lens position of the shooting module, resulting in poor drone shooting quality and poor surveying and mapping effect.

[0004] However, this drone photography device used for national land surveying and mapping still has some shortcomings. First, the design of its cleaning mechanism is not reasonable, the operation is cumbersome, and the cleaning effect is not ideal. Second, it is equipped with only a single camera, which cannot switch the camera according to the surveying and mapping requirements, nor can it quickly adjust the camera angle. Therefore, it needs to be optimized and improved. Summary of the invention

[0005] The purpose of the present invention is to overcome the above-mentioned problems existing in the traditional technology and provide a land surveying and mapping UAV and a method for using the same.

[0006] In order to achieve the above technical objectives and the above technical effects, the present invention is implemented through the following technical solutions:

[0007] The present invention provides a land surveying and mapping UAV, comprising a UAV body, wherein a turntable camera assembly and a turntable protection assembly sleeved on the outside of the UAV body are installed in the UAV body, a flannel layer for wiping and cleaning the camera of the turntable camera assembly is installed on the inner side of the turntable protection assembly, and an automatic camera wiping operation is realized by controlling the relative rotation of the turntable protection assembly and the turntable camera assembly.

[0008] Furthermore, in the above-mentioned land surveying and mapping UAV, the turntable-type protection assembly includes an outer turntable, a first servo motor and a first driving gear, two first axial convex tubes are symmetrically provided on both sides of the outer turntable, one of the first axial convex tubes is evenly distributed with first tooth grooves meshing with the first driving gear along the circumferential direction, and a first cylindrical cavity is provided inside the outer turntable, and a velvet layer is installed on the cylindrical inner side wall of the first cylindrical cavity.

[0009] Furthermore, in the above-mentioned land surveying and mapping UAV, the outer turntable is provided with an external camera through hole, and the flannel layer is provided with an internal camera through hole that matches the position of the external camera through hole.

[0010] Furthermore, in the above-mentioned land surveying and mapping UAV, an active cavity is provided on the UAV body to facilitate the rotation of the outer turntable in the turntable camera assembly, and openings are provided at the upper and lower ends of the active cavity. The central angle corresponding to the part of the outer turntable exposed from the lower end opening is 90-120 degrees.

[0011] Furthermore, in the above-mentioned land surveying and mapping UAV, the turntable camera assembly includes an inner turntable, a second servo motor and a second driving gear, two second axial protrusions are symmetrically provided on both sides of the inner turntable, one of the second axial protrusions extends from the first axial protrusion, and the extended part is evenly distributed along the circumferential direction with second tooth grooves meshing with the second driving gear; a plurality of cameras are installed on the outer periphery of the inner turntable, and a second cylindrical cavity is provided inside the inner turntable, and the lead wires of each camera are led out from the second cylindrical cavity and connected to the controller through a wire tube.

[0012] Furthermore, in the above-mentioned land surveying and mapping UAV, the thickness of the inner turntable matches the thickness of the first cylindrical cavity, the outer diameter of the second axial convex tube matches the inner diameter of the first axial convex tube, and the surface of the camera can be automatically wiped by the velvet layer during the rotation of the inner turntable.

[0013] Furthermore, in the above-mentioned land surveying and mapping UAV, there are six cameras in total, namely two 150° wide-angle cameras, two 52° medium-range cameras and two 28° long-range cameras, and each camera is reserved as a spare.

[0014] Furthermore, in the above-mentioned land surveying and mapping UAV, a storage hard disk, a wireless communication module and a battery are installed inside the UAV body, and a plurality of independent rotors are installed outside the UAV body.

[0015] Furthermore, in the above-mentioned land surveying and mapping UAV, the controller is respectively connected to the first servo motor, the second servo motor, the camera, the storage hard disk, the battery and the independent rotor, and the controller is connected to the remote background terminal through a wireless communication module.

[0016] The present invention also provides a method for using a land surveying and mapping drone, which is characterized by comprising the following steps:

[0017] 1) When wide-angle photography is required, the positions of the turntable camera assembly and the turntable protective assembly are adjusted so that the wide-angle camera is exposed from the inner camera through hole and the outer camera through hole, and the positions of the turntable camera assembly and the turntable protective assembly are adjusted synchronously to further adjust the photography angle of the wide-angle camera;

[0018] 2) When medium-range video is required, the positions of the turntable camera assembly and the turntable protective assembly are adjusted so that the medium-range camera is exposed from the inner camera through hole and the outer camera through hole, and the positions of the turntable camera assembly and the turntable protective assembly are adjusted synchronously to further adjust the camera angle of the medium-range camera;

[0019] 3) When long-distance photography is required, the positions of the turntable camera assembly and the turntable protective assembly are adjusted so that the long-distance camera is exposed from the inner camera through hole and the outer camera through hole, and the positions of the turntable camera assembly and the turntable protective assembly are adjusted synchronously to further adjust the shooting angle of the long-distance camera;

[0020] 4) When the camera image is unclear and the camera needs to be wiped, the position of the turntable camera assembly is locked, and the outer turntable of the turntable protective assembly is driven to reciprocate, and the flannel layer on the inner side of the outer turntable can be used to automatically wipe the camera.

[0021] The beneficial effects of the present invention are:

[0022] The present invention has a reasonable structural design and comprises a UAV body, a turntable camera assembly and a turntable protection assembly. A flannel layer for wiping and cleaning the camera of the turntable camera assembly is installed on the inner side of the turntable protection assembly. The automatic camera wiping operation is achieved by controlling the relative rotation of the turntable protection assembly and the turntable camera assembly. The operation is cumbersome and the cleaning effect is good. At the same time, the turntable camera assembly is installed with multiple cameras, which can switch the cameras according to the surveying and mapping requirements and can also quickly adjust the camera angle.

[0023] Of course, any product implementing the present invention does not necessarily need to achieve all of the above advantages at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0025] Figure 1 It is a schematic diagram of the external structure of the present invention;

[0026] Figure 2 It is a schematic diagram of the internal structure of the present invention;

[0027] Figure 3 It is a schematic diagram of the main structure of the rotating disc type protection assembly of the present invention;

[0028] Figure 4 It is a side view structural schematic diagram of the rotating disc type protection assembly in the present invention;

[0029] Figure 5 for Figure 3 Schematic diagram of the cross-sectional structure along the AA plane;

[0030] Figure 6 It is a schematic diagram of the main structure of the turntable type camera assembly of the present invention;

[0031] Figure 7 It is a side view structural schematic diagram of the turntable type camera assembly in the present invention;

[0032] Figure 8 It is a structural schematic diagram of the centerline tube of the present invention;

[0033] In the accompanying drawings, the reference numerals of the various components are as follows:

[0034] 1-UAV body, 2-external turntable, 3-first axial convex tube, 4-first servo motor, 5-first driving gear, 6-flannel layer, 7-external camera through hole, 8-internal camera through hole, 9-internal turntable, 10-second axial convex tube, 11-second servo motor, 12-second driving gear, 13-camera, 14-lead, 15-conducting wire, 151-end plate, 152-guide convex tube, 16-controller, 17-storage hard disk, 18-wireless communication module, 19-battery. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] Embodiment 1

[0037] like Figure 1 and Figure 2 As shown, this embodiment provides a land surveying and mapping UAV, including a UAV body 1, in which a turntable camera assembly and a turntable protection assembly mounted on the outside thereof are installed, and a flannel layer 6 for wiping and cleaning the turntable camera assembly is installed on the inner side of the turntable protection assembly, and the automatic camera wiping operation is achieved by controlling the relative rotation of the turntable protection assembly and the turntable camera assembly.

[0038] like Figures 3 to 5 As shown, the turntable protection assembly includes an outer turntable 2, a first servo motor 4 and a first driving gear 5. Two first axial convex tubes 3 are symmetrically arranged on both sides of the outer turntable 2, and one of the first axial convex tubes 3 is uniformly distributed along the circumference with first tooth grooves meshing with the first driving gear 5. A first cylindrical cavity is arranged inside the outer turntable 2, and a flannel layer 6 is installed on the cylindrical inner side wall of the first cylindrical cavity. An external camera through hole 7 is opened on the outer turntable 2, and an internal camera through hole 8 that matches the position of the external camera hole 7 is opened on the flannel layer 6.

[0039] In this embodiment, an active cavity is provided on the drone body 1 to facilitate the rotation of the outer turntable 2 in the turntable camera assembly. The upper and lower ends of the active cavity are provided with openings, and the central angle corresponding to the part of the outer turntable 2 exposed from the lower end opening is 90 degrees.

[0040] like Figure 6 and Figure 7 As shown, the turntable camera assembly includes an inner turntable 9, a second servo motor 11 and a second driving gear 12. Two second axial protrusions 10 are symmetrically arranged on both sides of the inner turntable 9, one of which extends from the first axial protrusion 3, and the extended portion is uniformly distributed with second tooth grooves meshing with the second driving gear 12 along the circumferential direction. A plurality of cameras 13 are installed on the outer periphery of the inner turntable 9, and a second cylindrical cavity is arranged inside the inner turntable 9. The lead wires 14 of each camera 13 are connected to the controller 16 through the wire tube 15 after being led out from the second cylindrical cavity. The thickness of the inner turntable 9 matches the thickness of the first cylindrical cavity, the outer diameter of the second axial protrusion 10 matches the inner diameter of the first axial protrusion 3, and the surface of the camera 13 can be automatically wiped by the flannel layer 6 during the rotation of the inner turntable 9.

[0041] In this embodiment, the wire tube 15 is composed of an end plate portion 151 and a guide convex tube portion 152. The end plate portion 151 is arranged in the peripheral area of ​​the second cylindrical cavity, and the guide convex tube portion 152 extends into the second cylindrical cavity, and the outer diameter of the guide convex tube portion 152 is smaller than the diameter of the second cylindrical cavity. The lead wire 14 of each camera 13 is reserved with sufficient length to adapt to the pulling caused by rotation.

[0042] Embodiment 2

[0043] like Figure 1 and Figure 2 As shown, this embodiment provides a land surveying and mapping UAV, including a UAV body 1, in which a turntable camera assembly and a turntable protection assembly mounted on the outside thereof are installed, and a flannel layer 6 for wiping and cleaning the turntable camera assembly is installed on the inner side of the turntable protection assembly, and the automatic camera wiping operation is achieved by controlling the relative rotation of the turntable protection assembly and the turntable camera assembly.

[0044] like Figures 3 to 5 As shown, the turntable protection assembly includes an outer turntable 2, a first servo motor 4 and a first driving gear 5. Two first axial convex tubes 3 are symmetrically arranged on both sides of the outer turntable 2, and one of the first axial convex tubes 3 is uniformly distributed along the circumference with first tooth grooves meshing with the first driving gear 5. A first cylindrical cavity is arranged inside the outer turntable 2, and a flannel layer 6 is installed on the cylindrical inner side wall of the first cylindrical cavity. An external camera through hole 7 is opened on the outer turntable 2, and an internal camera through hole 8 that matches the position of the external camera hole 7 is opened on the flannel layer 6.

[0045] In this embodiment, an active cavity is provided on the drone body 1 to facilitate the rotation of the outer turntable 2 in the turntable camera assembly. The upper and lower ends of the active cavity are provided with openings, and the central angle corresponding to the part of the outer turntable 2 exposed from the lower end opening is 105 degrees.

[0046] like Figure 6 and Figure 7 As shown, the turntable camera assembly includes an inner turntable 9, a second servo motor 11 and a second driving gear 12. Two second axial protrusions 10 are symmetrically arranged on both sides of the inner turntable 9, one of which extends from the first axial protrusion 3, and the extended portion is uniformly distributed with second tooth grooves meshing with the second driving gear 12 along the circumferential direction. A plurality of cameras 13 are installed on the outer periphery of the inner turntable 9, and a second cylindrical cavity is arranged inside the inner turntable 9. The lead wires 14 of each camera 13 are connected to the controller 16 through the wire tube 15 after being led out from the second cylindrical cavity. The thickness of the inner turntable 9 matches the thickness of the first cylindrical cavity, the outer diameter of the second axial protrusion 10 matches the inner diameter of the first axial protrusion 3, and the surface of the camera 13 can be automatically wiped by the flannel layer 6 during the rotation of the inner turntable 9.

[0047] In this embodiment, the wire tube 15 is composed of an end plate portion 151 and a guide convex tube portion 152. The end plate portion 151 is arranged in the peripheral area of ​​the second cylindrical cavity, and the guide convex tube portion 152 extends into the second cylindrical cavity, and the outer diameter of the guide convex tube portion 152 is smaller than the diameter of the second cylindrical cavity. The lead wire 14 of each camera 13 is reserved with sufficient length to adapt to the pulling caused by rotation.

[0048] In this embodiment, there are six cameras 13, namely, two 150° wide-angle cameras, two 52° medium-range cameras and two 28° long-range cameras, and each camera is reserved for backup.

[0049] The turntable camera assembly is equipped with multiple cameras 13, which can switch the cameras according to the surveying and mapping requirements and can also quickly adjust the camera angle.

[0050] This embodiment also provides a method for using a land surveying and mapping drone, comprising the following steps:

[0051] 1) When wide-angle photography is required, the positions of the turntable camera assembly and the turntable protective assembly are adjusted so that the wide-angle camera is exposed from the inner camera through hole 8 and the outer camera through hole 7, and the positions of the turntable camera assembly and the turntable protective assembly are adjusted synchronously to further adjust the photography angle of the wide-angle camera;

[0052] 2) When medium-range video is required, the positions of the turntable video camera assembly and the turntable protective assembly are adjusted so that the medium-range camera is exposed from the inner video through hole 8 and the outer video through hole 7, and the positions of the turntable video camera assembly and the turntable protective assembly are adjusted synchronously, so that the video angle of the medium-range camera can be further adjusted;

[0053] 3) When long-distance photography is required, the positions of the turntable camera assembly and the turntable protective assembly are adjusted so that the long-distance camera is exposed from the inner camera through hole 8 and the outer camera through hole 7, and the positions of the turntable camera assembly and the turntable protective assembly are adjusted synchronously to further adjust the camera angle of the long-distance camera;

[0054] 4) When the camera image is unclear and the camera 13 needs to be wiped, the position of the turntable camera assembly is locked, and the outer turntable 2 of the turntable protection assembly is driven to reciprocate within 5-10°, and the flannel layer 6 on the inner side of the outer turntable 2 can be used to automatically wipe the camera 13.

[0055] Embodiment 3

[0056] like Figure 1 and Figure 2As shown, this embodiment provides a land surveying and mapping UAV, including a UAV body 1, in which a turntable camera assembly and a turntable protection assembly mounted on the outside thereof are installed, and a flannel layer 6 for wiping and cleaning the turntable camera assembly is installed on the inner side of the turntable protection assembly, and the automatic camera wiping operation is achieved by controlling the relative rotation of the turntable protection assembly and the turntable camera assembly.

[0057] like Figures 3 to 5 As shown, the turntable protection assembly includes an outer turntable 2, a first servo motor 4 and a first driving gear 5. Two first axial convex tubes 3 are symmetrically arranged on both sides of the outer turntable 2, and one of the first axial convex tubes 3 is uniformly distributed along the circumference with first tooth grooves meshing with the first driving gear 5. A first cylindrical cavity is arranged inside the outer turntable 2, and a flannel layer 6 is installed on the cylindrical inner side wall of the first cylindrical cavity. An external camera through hole 7 is opened on the outer turntable 2, and an internal camera through hole 8 that matches the position of the external camera hole 7 is opened on the flannel layer 6.

[0058] In this embodiment, an active cavity is provided on the drone body 1 to facilitate the rotation of the outer turntable 2 in the turntable camera assembly. The upper and lower ends of the active cavity are provided with openings, and the central angle corresponding to the part of the outer turntable 2 exposed from the lower end opening is 120 degrees.

[0059] like Figure 6 and Figure 7 As shown, the turntable camera assembly includes an inner turntable 9, a second servo motor 11 and a second driving gear 12. Two second axial protrusions 10 are symmetrically arranged on both sides of the inner turntable 9, one of which extends from the first axial protrusion 3, and the extended portion is uniformly distributed with second tooth grooves meshing with the second driving gear 12 along the circumferential direction. A plurality of cameras 13 are installed on the outer periphery of the inner turntable 9, and a second cylindrical cavity is arranged inside the inner turntable 9. The lead wires 14 of each camera 13 are connected to the controller 16 through the wire tube 15 after being led out from the second cylindrical cavity. The thickness of the inner turntable 9 matches the thickness of the first cylindrical cavity, the outer diameter of the second axial protrusion 10 matches the inner diameter of the first axial protrusion 3, and the surface of the camera 13 can be automatically wiped by the flannel layer 6 during the rotation of the inner turntable 9.

[0060] In this embodiment, the wire tube 15 is composed of an end plate portion 151 and a guide convex tube portion 152. The end plate portion 151 is arranged in the peripheral area of ​​the second cylindrical cavity, and the guide convex tube portion 152 extends into the second cylindrical cavity, and the outer diameter of the guide convex tube portion 152 is smaller than the diameter of the second cylindrical cavity. The lead wire 14 of each camera 13 is reserved with sufficient length to adapt to the pulling caused by rotation.

[0061] In this embodiment, there are six cameras 13, namely, two 150° wide-angle cameras, two 52° medium-range cameras and two 28° long-range cameras, and each camera is reserved for backup.

[0062] In this embodiment, a storage hard disk 17, a wireless communication module 18 and a battery 19 are installed inside the drone body 1, and a plurality of independent rotors are installed outside the drone body 1. The controller 16 is respectively connected to the first servo motor 4, the second servo motor 11, the camera 13, the storage hard disk 17, the battery 19 and the independent rotor, and the controller 16 is connected to the remote background terminal through the wireless communication module 17.

[0063] This embodiment also provides a method for using a land surveying and mapping drone, comprising the following steps:

[0064] 1) When wide-angle photography is required, the positions of the turntable camera assembly and the turntable protective assembly are adjusted so that the wide-angle camera is exposed from the inner camera through hole 8 and the outer camera through hole 7, and the positions of the turntable camera assembly and the turntable protective assembly are adjusted synchronously to further adjust the photography angle of the wide-angle camera;

[0065] 2) When medium-range video is required, the positions of the turntable video camera assembly and the turntable protective assembly are adjusted so that the medium-range camera is exposed from the inner video through hole 8 and the outer video through hole 7, and the positions of the turntable video camera assembly and the turntable protective assembly are adjusted synchronously, so that the video angle of the medium-range camera can be further adjusted;

[0066] 3) When long-distance photography is required, the positions of the turntable camera assembly and the turntable protective assembly are adjusted so that the long-distance camera is exposed from the inner camera through hole 8 and the outer camera through hole 7, and the positions of the turntable camera assembly and the turntable protective assembly are adjusted synchronously to further adjust the camera angle of the long-distance camera;

[0067] 4) When the camera image is unclear and the camera 13 needs to be wiped, the position of the turntable camera assembly is locked, and the outer turntable 2 of the turntable protection assembly is driven to reciprocate within 10-20°, and the flannel layer 6 on the inner side of the outer turntable 2 can be used to automatically wipe the camera 13.

[0068] 5) When video recording is not required, the inner video recording through hole 8 and the outer video recording through hole 7 are hidden inside the drone body 1 by the position of the turntable protection component, thereby achieving sealed protection for the camera 13 .

[0069] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A land surveying and mapping UAV, comprising a UAV body, characterized in that: A turntable camera assembly and a turntable protection assembly mounted on the outside of the turntable camera assembly are installed in the drone body. A flannel layer for wiping and cleaning the turntable camera assembly is installed on the inner side of the turntable protection assembly. Automatic camera wiping operation is achieved by controlling the relative rotation of the turntable protection assembly and the turntable camera assembly.

2. The land surveying and mapping UAV according to claim 1, characterized in that: The turntable protection assembly includes an outer turntable, a first servo motor and a first driving gear. Two first axial convex tubes are symmetrically arranged on both sides of the outer turntable, one of which has first tooth grooves evenly distributed along the circumference for meshing with the first driving gear. A first cylindrical cavity is arranged inside the outer turntable, and a velvet layer is installed on the cylindrical inner side wall of the first cylindrical cavity.

3. The land surveying and mapping UAV according to claim 2, characterized in that: The outer rotating disk is provided with an outer camera through hole, and the flannel layer is provided with an inner camera through hole matched with the position of the outer camera hole.

4. The land surveying and mapping UAV according to claim 3, characterized in that: The drone body is provided with an active cavity for facilitating the rotation of the outer turntable in the turntable camera assembly. The upper and lower ends of the active cavity are provided with openings. The central angle corresponding to the part of the outer turntable exposed from the lower end opening is 90-120 degrees.

5. The land surveying and mapping UAV according to claim 4, characterized in that: The turntable camera assembly includes an inner turntable, a second servo motor and a second driving gear. Two second axial protrusions are symmetrically provided on both sides of the inner turntable, one of the second axial protrusions extends from the first axial protrusion, and the extended portion has second tooth grooves that mesh with the second driving gear evenly distributed along the circumferential direction; a plurality of cameras are installed on the outer periphery of the inner turntable, and a second cylindrical cavity is provided inside the inner turntable, and the lead wires of each camera are led out from the second cylindrical cavity and connected to the controller through a wire tube.

6. The land surveying and mapping UAV according to claim 5, characterized in that: The thickness of the inner turntable matches the thickness of the first cylindrical cavity, the outer diameter of the second axial convex tube matches the inner diameter of the first axial convex tube, and the surface of the camera can be automatically wiped by the velvet layer during the rotation of the inner turntable.

7. The land surveying and mapping UAV according to claim 6, characterized in that: There are six cameras in total, including two 150° wide-angle cameras, two 52° mid-range cameras and two 28° telephoto cameras, and each camera is reserved as a spare.

8. The land surveying and mapping UAV according to claim 7, characterized in that: A storage hard disk, a wireless communication module and a battery are installed inside the drone body, and a plurality of independent rotors are installed outside the drone body.

9. The land surveying and mapping UAV according to claim 8, characterized in that: The controller is respectively connected to the first servo motor, the second servo motor, the camera, the storage hard disk, the battery and the independent rotor, and the controller is connected to the remote background terminal through a wireless communication module.

10. The method for using the land surveying and mapping UAV according to claim 9, characterized in that: The steps include: 1) When wide-angle photography is required, the positions of the turntable camera assembly and the turntable protective assembly are adjusted so that the wide-angle camera is exposed from the inner camera through hole and the outer camera through hole, and the positions of the turntable camera assembly and the turntable protective assembly are adjusted synchronously to further adjust the photography angle of the wide-angle camera; 2) When medium-range video is required, the positions of the turntable camera assembly and the turntable protective assembly are adjusted so that the medium-range camera is exposed from the inner camera through hole and the outer camera through hole, and the positions of the turntable camera assembly and the turntable protective assembly are adjusted synchronously to further adjust the camera angle of the medium-range camera; 3) When long-distance photography is required, the positions of the turntable camera assembly and the turntable protective assembly are adjusted so that the long-distance camera is exposed from the inner camera through hole and the outer camera through hole, and the positions of the turntable camera assembly and the turntable protective assembly are adjusted synchronously to further adjust the shooting angle of the long-distance camera; 4) When the camera image is unclear and the camera needs to be wiped, the position of the turntable camera assembly is locked, and the outer turntable of the turntable protective assembly is driven to reciprocate, and the flannel layer on the inner side of the outer turntable can be used to automatically wipe the camera.

Images