A land resource data collection device

Abstract

The present invention relates to the technical field of land resource exploration, and in particular to a land resource data acquisition device. An information acquisition component is carried on an unmanned aerial vehicle, and a route is planned in advance. A control module controls the unmanned aerial vehicle to navigate according to the predetermined route, and the information acquisition component collects land information. A main camera photographs the land, and an auxiliary camera photographs the land at different angles to improve the integrity of the collected data. When the aircraft encounters turbulence, it is determined whether it is caused by turbulence according to the change of the navigation attitude of the unmanned aerial vehicle and the rotation of the wind vane component. If so, the aircraft hovers and waits for an image acquisition unit to determine whether the clarity of the collected image meets the standard. Otherwise, the image is re-shot. A preliminary judgment can be made on whether the collected image is available, thereby reducing the real-time computing power required by the image acquisition unit. Only calculation is required when it is determined that turbulence is encountered, thereby improving the quality of image data and improving the exploration accuracy of land resource information.

Description

Technical Field

[0001] The invention relates to the technical field of land resource exploration, and in particular to a land resource data acquisition device. Background Art

[0002] In the past, land resource data collection often relied on manual field measurements. Workers had to carry measurement tools, such as total stations and levels, to the site to measure point by point. This method was not only inefficient, but also difficult to implement in some areas with complex terrain and inconvenient transportation, and even posed safety risks.

[0003] With the increasing maturity of drone technology, the use of drones equipped with video acquisition equipment and geographic information systems can easily and quickly obtain land topographic data. Remote sensing image processing technology can perform geometric correction, radiation correction, image enhancement, classification and other processing on images taken by drones, thereby improving image quality and information extraction capabilities, thereby more accurately identifying and analyzing the characteristics and changes of land resources.

[0004] The Chinese invention patent with announcement number CN111959807 A discloses a remote sensing image acquisition device for land resource management, in which an information collection mechanism is fixedly installed in the middle position inside a transparent protective cover, a side brush is fixedly installed on the outside of a slide plate, a side gear and a driving gear are both rotatably installed inside the transparent protective cover, a motor is fixedly installed inside the transparent protective cover, a side slide groove is connected to a rack through a side slider, a fixing rod is welded on the inside of a windshield, and a shock absorbing plate is fixedly installed inside the windshield. The remote sensing image acquisition device for land resource management can clean the outside of the transparent protective cover while collecting land information.

[0005] However, the applicant has found that the prior art has at least the following problems:

[0006] When a drone is performing a flight mission, it may encounter air turbulence, causing the drone to vibrate and bump. Although the windshield in the existing technology can reduce shock to a certain extent, it cannot determine whether the camera is vibrating, resulting in blurred images, which may cause some of the collected image data to be invalid and unusable. Summary of the invention

[0007] In view of this, an object of the present invention is to provide a land resource data acquisition device to solve the problem that some image information may be unavailable in the prior art.

[0008] Based on the above purpose, the present invention provides a land resource data collection device, including a drone and an information collection component mounted on the drone, the drone includes a drone body and multiple propellers, a bracket is installed at the bottom of the drone body, and the information collection component is detachably installed at the bottom of the drone body; the information collection component includes a transparent cover, a main camera is fixedly installed in the transparent cover, an auxiliary camera that can rotate around the main camera is installed around the main camera, the main camera is used to capture land images, and the auxiliary camera is used to supplement the viewing angle of the main camera and capture land images at different angles of the main camera:

[0009] The wind vane component is installed on the information collection component. The wind vane component is connected to a rotary encoder to monitor the rotation angle of the wind vane component and convert it into a digital signal for transmission;

[0010] The control module includes a flight control unit for controlling the UAV to perform flight actions according to a preset navigation; an image processing unit for processing images collected by the main camera and the auxiliary camera; and a determination unit for receiving a digital signal from a rotary encoder, analyzing the maximum rotation angle of the wind vane component according to the digital signal, and comparing the maximum rotation angle with an angle threshold preset in the control module:

[0011] If the maximum rotation angle is ≥ the angle threshold, the flight information of the flight control module is queried; if the flight control module does not change the flight attitude, it is determined that the land image of the area needs to be re-collected; if the flight control module changes the flight attitude, a command is sent to the flight control unit to hover in place, waiting for the image processing unit to determine whether the clarity index of the collected image is lower than the clarity threshold, if so, re-collect, otherwise continue to execute the collection task;

[0012] If the maximum rotation angle is less than the angle threshold, the acquisition task continues and the maximum rotation angle is repeatedly compared with the angle threshold.

[0013] Optionally, the weather vane assembly is connected to a rotating column assembly, which is rotatably mounted on the information collection assembly. The rotating column assembly includes a cylinder rotatably mounted on the information collection assembly, and four groups of mounting seats are arranged in an array around the top of the cylinder. A group of foldable weather vane assemblies are adapted to be installed in each group of mounting seats. A transmission shaft is installed on the top of the cylinder, and the transmission shaft is connected to a cross bar. An extrusion block is connected to the end of the cross bar. A brush rod is connected to the side wall of the rotating column assembly, and the brush rod and the end extend to the transparent cover and fit with the transparent cover. Each time the transmission shaft rotates 90°, the extrusion block opens a group of weather vane assemblies in sequence, and the cylinder drives the brush rod to rotate under the action of wind force to clean the outer surface of the transparent cover.

[0014] Optionally, a accommodating chamber is provided inside the cylinder body, an electric telescopic rod is installed inside the accommodating chamber, the electric telescopic rod is dynamically connected to a lifting seat, an inclined tooth portion is provided at the top of the lifting seat, a slide groove is provided on the inclined surface of the inclined tooth portion in the vertical direction, a limiting column is adapted to be installed in the slide groove, the limiting column is fixedly installed on the inner wall of the accommodating chamber, a rotating seat is adapted to be installed above the lifting seat, four groups of extruded oblique teeth are arranged in an array at the bottom of the rotating seat, a vertical limiting portion is provided between each group of extruded oblique teeth, for cooperating with the limiting column to limit the rotation of the rotating seat, a spring base is abutted and connected to the top of the rotating seat, a return spring is connected to the top of the spring base, a spring top seat is connected to the top of the return spring, a cylinder cover is provided on the top of the accommodating chamber, the cylinder cover can be rotatably installed on the top of the cylinder body, and the transmission shaft is fixedly connected to the rotating seat.

[0015] Optionally, the weather vane assembly includes a first torsion shaft installed in a mounting seat, the first torsion shaft is connected to a connecting rod, one end of the connecting rod is integrally formed with a contact portion that is 90° to the connecting rod, the other end of the connecting rod is connected to a guide column, a sliding sleeve is provided on the guide column, two groups of first connecting rods are symmetrically arranged on the slider, the first connecting rod is connected to the second connecting rod through the second torsion shaft, the end of the second connecting rod is hinged to the end of the connecting rod, a folding cloth is folded and installed between the second connecting rod and the guide column, the slider is connected to a pull rod, a through hole is opened in the connecting rod, the pull rod is inserted into the through hole, a pull rope is connected to the end of the pull rod, the pull rope extends toward the contact portion of the connecting rod and is connected to a lifting plate, the lifting plate is lifted and installed on the contact portion, the lifting plate is adapted to the extrusion block, the extrusion block pushes the lifting plate downward, and the slider is pulled to move to open the folding cloth.

[0016] Optionally, the elastic force of the first torsion shaft is smaller than the elastic force of the reset spring when it resets.

[0017] Optionally, a limit seat is fixedly installed at the end of the guide column, and the limit seat limits the extreme position of the slider so that an initial angle is maintained between the first connecting rod and the second connecting rod.

[0018] Optionally, the cylinder is connected to a connecting shaft, the connecting shaft is connected to an auxiliary motor, a partition is provided inside the information acquisition component, and the auxiliary motor is fixedly mounted on the partition.

[0019] Optionally, a base plate is also installed in the information collection component, a driving motor is installed on the base plate, the driving motor power is connected to a turntable, and the auxiliary camera is installed on the turntable at a certain angle.

[0020] Optionally, the end of the brush rod is in contact with the bottom surface of the transparent cover, and the end of the brush rod is connected to an electric rod, which can drive the brush rod to extend a certain length.

[0021] Optionally, two groups of connecting frames are fixedly connected to the top of the information collection component, and a pin hole plate is connected to the top of the connecting frame. The pin hole plate is provided with pin holes for matching with pins to connect with the drone.

[0022] The beneficial effects of the present invention are as follows: the present invention provides a land resource data acquisition device, which carries an information acquisition component on a drone, plans a route in advance, and writes it into a control module. The control module controls the drone to navigate according to the predetermined route. During this process, the information acquisition component acquires land information, the main camera photographs the land, and the auxiliary camera photographs the land at different angles, thereby improving the integrity of the acquired data. When the aircraft encounters turbulence, it determines whether it is caused by turbulence based on the changes in the navigation attitude of the drone and the rotation of the wind vane component. If so, it hovers and waits for the image acquisition unit to determine whether the clarity of the acquired image meets the standard. Otherwise, it is re-shot. A preliminary judgment can be made on whether the acquired image is available, thereby reducing the real-time computing power required by the image acquisition unit. Only calculations need to be performed when it is determined that turbulence is encountered, thereby improving the quality of the image data and improving the accuracy of land resource information exploration. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 A land resource data collection device according to an embodiment of the present invention is shown in FIG. Figure 1 ;

[0025] Figure 2 A land resource data collection device according to an embodiment of the present invention is shown in FIG. Figure 2 ;

[0026] Figure 3 A schematic diagram of an information collection component of a land resource data collection device according to an embodiment of the present invention;

[0027] Figure 4 This is an internal schematic diagram of an information collection component of a land resource data collection device according to an embodiment of the present invention;

[0028] Figure 5 A schematic diagram of a weather vane component of a land resource data collection device according to an embodiment of the present invention;

[0029] Figure 6 for Figure 5 A schematic diagram of the enlarged local structure of part A;

[0030] Figure 7 This is a schematic diagram of a rotating column assembly of a land resource data collection device according to an embodiment of the present invention.

[0031] The markings in the figure are:

[0032] 101, drone body; 102, propeller; 103, bracket; 201, information collection component; 202, connecting frame; 203, pin hole plate; 204, transparent cover; 205, auxiliary motor; 206, partition; 207, drive motor; 208, bottom plate; 209, turntable; 210, auxiliary camera; 211, main camera; 212, brush rod; 301, rotating column assembly; 302, cylinder; 303, connecting shaft; 304, electric telescopic rod; 305, lifting seat; 306, inclined tooth; 307, slide; 308, Rotating seat; 309, extrusion bevel teeth; 310, vertical limit part; 311, spring base; 312, spring top seat; 313, return spring; 314, cylinder cover; 315, transmission shaft; 316, cross bar; 317, extrusion block; 318, mounting seat; 319, limit column; 401, weather vane assembly; 402, connecting rod; 403, first torsion axis; 404, guide column; 405, limit seat; 406, slider; 407, first connecting rod; 408, second torsion axis; 409, second connecting rod; 410, pull rod; 411, lifting plate. DETAILED DESCRIPTION

[0033] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.

[0034] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0035] like Figures 1 to 7As shown, a specific embodiment of the present invention provides a land resource data collection device, including a drone and an information collection component 201 mounted on the drone, the drone includes a drone body 101 and multiple propellers 102, a bracket 103 is installed at the bottom of the drone body 101, and the information collection component 201 is detachably installed at the bottom of the drone body 101; the information collection component 201 includes a transparent cover 204, a main camera 211 is fixedly installed in the transparent cover 204, an auxiliary camera 210 that can rotate around the main camera 211 is installed around the main camera 211, the main camera 211 is used to capture land images, and the auxiliary camera 210 is used to supplement the viewing angle of the main camera 211 and capture land images at different angles of the main camera 211;

[0036] The wind vane component 401 is installed on the information collection component 201. The wind vane component 401 is connected to a rotary encoder for monitoring the rotation angle of the wind vane component 401 and converting it into a digital signal for sending;

[0037] The control module includes a flight control unit for controlling the drone to perform flight actions according to a preset navigation; an image processing unit for processing images collected by the main camera 211 and the auxiliary camera 210; and a determination unit for receiving a digital signal from a rotary encoder, analyzing the maximum rotation angle of the wind vane component 401 according to the digital signal, and comparing the maximum rotation angle with an angle threshold preset in the control module:

[0038] If the maximum rotation angle is ≥ the angle threshold, the flight information of the flight control module is queried; if the flight control module does not change the flight attitude, it is determined that the land image of the area needs to be re-collected; if the flight control module changes the flight attitude, a command is sent to the flight control unit to hover in place, waiting for the image processing unit to determine whether the clarity index of the collected image is lower than the clarity threshold, if so, re-collect, otherwise continue to execute the collection task;

[0039] If the maximum rotation angle is less than the angle threshold, the acquisition task continues and the maximum rotation angle is repeatedly compared with the angle threshold.

[0040] When executing the land image acquisition task, the information acquisition component 201 is carried by the drone, and the route is planned in advance and written into the control module. The control module controls the drone to navigate according to the predetermined route. During this process, the information acquisition component 201 collects land information, the main camera 211 photographs the land, and the auxiliary camera 210 photographs the land at different angles to improve the integrity of the collected data. When the aircraft encounters turbulence, it is determined whether it is caused by turbulence based on the changes in the drone's navigation attitude and the rotation of the wind vane component 401. If so, it hovers and waits for the image acquisition unit to determine whether the clarity of the collected image meets the standard. Otherwise, it is re-shot. A preliminary judgment can be made on whether the collected image is available, which reduces the real-time computing power required by the image acquisition unit. It only needs to be calculated when it is determined that turbulence is encountered, thereby improving the quality of image data and the accuracy of land resource information exploration.

[0041] In some optional specific embodiments, the wind vane component 401 is connected to a rotating column component 301, and the rotating column component 301 is rotatably mounted on the information collection component 201. The rotating column component 301 includes a cylinder 302 rotatably mounted on the information collection component 201, and four groups of mounting seats 318 are arranged in an array around the top of the cylinder 302. A group of foldable wind vane components 401 is adapted to be installed in each group of mounting seats 318. A transmission shaft 31 is installed on the top of the cylinder 302. 5. The transmission shaft 315 is connected to a cross bar 316, and an extrusion block 317 is connected to the end of the cross bar 316. A brush rod 212 is connected to the side wall of the rotating column assembly 301. The brush rod 212 and the end extend to the transparent cover 204 and fit with the transparent cover 204. The transmission shaft 315 rotates 90° each time, and the extrusion block 317 opens a group of weather vane assemblies 401 in sequence each time. The cylinder 302 drives the brush rod 212 to rotate under the action of wind to clean the outer surface of the transparent cover 204. During use, when the transparent cover 204 needs to be cleaned, the transmission shaft 315 is rotated 90° each time to open the wind vane assembly 401 in turn, and then under the action of wind force, the wind vane assembly 401 drives the transmission shaft 315 to rotate, and the transmission shaft 315 drives the brush rod 212 to rotate, thereby cleaning the outer surface of the transparent cover 204. Compared with the prior art in which the motor drives the brush rod 212 to rotate for cleaning and links the auxiliary camera 210 to rotate, it can greatly save electricity demand, reduce the energy consumption of the drone, and improve the drone's endurance.

[0042] In some optional implementations, such as Figures 4 to 7As shown, the cylinder 302 is provided with a containing cavity inside, and an electric telescopic rod 304 is installed inside the containing cavity. The electric telescopic rod 304 is connected to a lifting seat 305 by power. An inclined tooth portion 306 is provided on the top of the lifting seat 305. A slide groove 307 in the vertical direction is provided on the inclined surface of the inclined tooth portion 306. A limit column 319 is installed in the slide groove 307. The limit column 319 is fixedly installed on the inner wall of the containing cavity. A rotating seat 308 is installed above the lifting seat 305. The bottom of the rotating seat 308 is arranged in an array. There are four groups of extrusion bevel teeth 309, and a vertical limiting portion 310 is provided between each group of extrusion bevel teeth 309, which is used to cooperate with the limiting column 319 to limit the rotation of the rotating seat 308. The top of the rotating seat 308 is abutted and connected with a spring base 311, the top of the spring base 311 is connected with a return spring 313, and the top of the return spring 313 is connected with a spring top seat 312. A cylinder cover 314 is provided on the top of the accommodating cavity, and the cylinder cover 314 can be rotatably installed on the top of the cylinder body 302, and the transmission shaft 315 is fixedly connected to the rotating seat 308. When the lifting seat 305 is in use, the lifting seat 305 is driven to move upward by the electric telescopic rod 304. After the lifting seat 305 moves upward, the inclined tooth portion 306 pushes the extruding inclined tooth 309 upward. During this process, the return spring 313 is compressed, and the rotating seat 308 has a tendency to rotate. At the same time, the limiting column 319 is in the vertical limiting portion 310 to limit the rotation of the rotating seat 308. When the lifting seat 305 squeezes the rotating seat 308 upward for a certain distance, the limiting column 319 disengages from the vertical limiting portion 310. At this time, under the action of the inclined tooth portion 306 and the extruding oblique tooth 309, the rotating seat 308 rotates, driving the transmission shaft 315 to rotate 90°. At this time, the limiting column 319 is inserted into the adjacent vertical limiting portion 310, and the electric telescopic rod 304 retracts, causing the rotating seat 308 to descend, driving the transmission shaft 315 to descend, and driving the extrusion block 317 to squeeze the next group of weather vane components 401 to open them.

[0043] In some optional specific embodiments, such as Figures 3 to 7As shown, the weather vane assembly 401 includes a first torsion shaft 403 installed in the mounting seat 318, the first torsion shaft 403 is connected to a connecting rod 402, one end of the connecting rod 402 is integrally formed with a contact portion that is 90 degrees to the connecting rod 402, the other end of the connecting rod 402 is connected to a guide column 404, a slider 406 is slidably sleeved on the guide column 404, two groups of first connecting rods 407 are symmetrically arranged on the slider 406, the first connecting rod 407 is connected to a second connecting rod 409 through a second torsion shaft 408, and the end of the second connecting rod 409 It is hinged at the end of the connecting rod 402, and a folding cloth is folded and installed between the second connecting rod 409 and the guide column 404. The slider 406 is connected to the pull rod 410. A through hole is opened in the connecting rod 402, and the pull rod 410 is inserted into the through hole. A pull rope is connected to the end of the pull rod 410, and the pull rope extends toward the contact part of the connecting rod 402 and is connected to a lifting plate 411. The lifting plate 411 is lifted and installed on the contact part. The lifting plate 411 is adapted to the extrusion block 317, and the extrusion block 317 pushes the lifting plate 411 downward, pulling the slider 406 to move and cause the folding cloth to open. During use, when the extrusion block 317 is pressed down, it will squeeze the contact part, causing the connecting rod 402 to rotate with the first torsion axis 403, thereby causing the connecting rod 402 to rotate from the vertical storage state to the horizontal state, and the extrusion block 317 continues to move downward, pushing the lifting plate 411 to move downward, pulling the pull rod 410 and then pulling the slider 406 to move, so that the first connecting rod 407 and the second connecting rod 409 overcome the elastic force of the second torsion axis 408 to open, thereby pulling the folding cloth to open. It should be noted that the first torsion axis 403 has a tendency to make the connecting rod 402 vertical, and the second torsion axis 408 has a tendency to make the first connecting rod 407 and the second connecting rod 409 open.

[0044] In some optional specific embodiments, the elastic force of the first torsion shaft 403 is smaller than the elastic force of the reset spring 313 when it is reset.

[0045] In some optional implementations, such as Figure 6 As shown, the end of the guide column 404 is fixedly mounted with a limit seat 405, which limits the limit position of the slider 406, so that an initial angle is maintained between the first connecting rod 407 and the second connecting rod 409. It is convenient to pull the slider 406 smoothly.

[0046] In some optional specific embodiments, such as Figures 4 to 7 As shown, the cylinder 302 is connected to a connecting shaft 303, the connecting shaft 303 is connected to an auxiliary motor 205, a partition 206 is provided inside the information collection component 201, and the auxiliary motor 205 is fixedly mounted on the partition 206. The auxiliary motor 205 is used to apply a rotational force to the cylinder 302 when the wind force is insufficient, thereby driving the brush rod 212 to rotate.

[0047] In some optional specific embodiments, such as Figure 4 As shown, the information collection component 201 is also equipped with a base plate 208, a driving motor 207 is installed on the base plate 208, the driving motor 207 is connected to a turntable 209, and an auxiliary camera 210 is installed on the turntable 209 at a certain angle.

[0048] In some optional specific embodiments, the end of the brush rod 212 contacts the bottom surface of the transparent cover 204, and the end of the brush rod 212 is connected to an electric rod, which can drive the brush rod 212 to extend to a certain length. The brush rod 212 is extended only during cleaning to avoid affecting image capture.

[0049] In some optional specific embodiments, two sets of connecting frames 202 are fixedly connected to the top of the information collection component 201, and a pin hole plate 203 is connected to the top of the connecting frame 202. The pin hole plate 203 is provided with pin holes for matching with pins to connect with the drone.

[0050] The working principle of the present invention is as follows: when executing the land image acquisition task, the information acquisition component 201 is carried by the drone, and the route is planned in advance and written into the control module. The control module controls the drone to navigate according to the predetermined route. During this process, the information acquisition component 201 collects land information, the main camera 211 photographs the land, and the auxiliary camera 210 photographs the land at different angles to improve the integrity of the collected data. When the aircraft encounters turbulence, it is determined whether it is caused by turbulence based on the changes in the drone's navigation attitude and the rotation of the wind vane component 401. If so, it hovers and waits for the image acquisition unit to determine whether the clarity of the collected image meets the standard. Otherwise, it is re-shot. A preliminary judgment can be made on whether the collected image is available, which reduces the real-time computing power required by the image acquisition unit. It only needs to be calculated when it is determined that turbulence is encountered, thereby improving the quality of image data and improving the exploration accuracy of land resource information.

[0051] At the same time, the lifting seat 305 is driven to move upward by the electric telescopic rod 304. After the lifting seat 305 moves upward, the inclined tooth portion 306 pushes the extruding inclined tooth 309 upward. During this process, the return spring 313 is compressed, and the rotating seat 308 has a tendency to rotate. At the same time, the limiting column 319 is in the vertical limiting portion 310 to limit the rotation of the rotating seat 308. When the lifting seat 305 squeezes the rotating seat 308 upward for a certain distance, the limiting column 319 disengages from the vertical limiting portion 310. At this time, under the action of the inclined tooth portion 306 and the extruding oblique tooth 309, the rotating seat 308 rotates, driving the transmission shaft 315 to rotate 90°. At this time, the limiting column 319 is inserted into the adjacent vertical limiting portion 310, and at the same time the electric telescopic rod 304 retracts, causing the rotating seat 308 to descend, driving the transmission shaft 315 to descend, and driving the extrusion block 317 to squeeze the next group of weather vane components 401 to open them.

[0052] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0053] The present invention is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A land resource data collection device, comprising an unmanned aerial vehicle (UAV) and an information collection component (201) mounted on the UAV, wherein the UAV comprises an UAV body (101) and a plurality of propellers (102), a bracket (103) is mounted on the bottom of the UAV body (101), and the information collection component (201) is detachably mounted on the bottom of the UAV body (101); the information collection component (201) comprises a transparent cover (204), a main camera (211) is fixedly mounted in the transparent cover (204), an auxiliary camera (210) rotatable around the main camera (211) is mounted on the periphery of the main camera (211), the main camera (211) is used to capture land images, and the auxiliary camera (210) is used to supplement the viewing angle of the main camera (211) and capture land images at different angles of the main camera (211), characterized in that: A wind vane component (401) is mounted on the information collection component (201), and the wind vane component (401) is connected to a rotary encoder for monitoring the rotation angle of the wind vane component (401) and converting the rotation angle into a digital signal for transmission; The control module comprises a flight control unit for controlling the unmanned aerial vehicle to perform flight actions according to a preset navigation; an image processing unit for processing images collected by a main camera (211) and an auxiliary camera (210); and a determination unit for receiving a digital signal sent by a rotary encoder, analyzing a maximum rotation angle of a wind vane component (401) according to the digital signal, and comparing the maximum rotation angle with an angle threshold value preset in the control module: If the maximum rotation angle is ≥ the angle threshold, the flight information of the flight control module is queried; if the flight control module does not change the flight attitude, it is determined that the land image of the area needs to be re-collected; if the flight control module changes the flight attitude, a command is sent to the flight control unit to hover in place, waiting for the image processing unit to determine whether the clarity index of the collected image is lower than the clarity threshold, if so, re-collect, otherwise continue to execute the collection task; If the maximum rotation angle is less than the angle threshold, the acquisition task continues and the maximum rotation angle is repeatedly compared with the angle threshold; The wind vane assembly (401) is connected to a rotating column assembly (301), the rotating column assembly (301) is rotatably mounted on the information collection assembly (201), the rotating column assembly (301) comprises a cylinder (302) rotatably mounted on the information collection assembly (201), four groups of mounting seats (318) are arranged in an array around the top of the cylinder (302), each group of mounting seats (318) is adapted to be mounted with a group of foldable wind vane assemblies (401), a transmission shaft (315) is mounted on the top of the cylinder (302), and the transmission shaft (318) is arranged on the top of the cylinder (302). 5) is connected to a cross bar (316), the end of the cross bar (316) is connected to an extrusion block (317), a brush rod (212) is connected to the side wall of the rotating column assembly (301), the brush rod (212) and the end extend to the transparent cover (204) and fit with the transparent cover (204), the transmission shaft (315) rotates 90 degrees each time, the extrusion block (317) opens a group of wind vane assemblies (401) in sequence each time, and the cylinder (302) drives the brush rod (212) to rotate under the action of wind to clean the outer surface of the transparent cover (204).

2. A land resource data collection device according to claim 1, characterized in that: The cylinder (302) is provided with a receiving chamber inside, and an electric telescopic rod (304) is installed inside the receiving chamber. The electric telescopic rod (304) is connected to a lifting seat (305) by power. An inclined tooth portion (306) is provided on the top of the lifting seat (305). A slide groove (307) in the vertical direction is provided on the inclined surface of the inclined tooth portion (306). A limiting column (319) is adapted to be installed in the slide groove (307). The limiting column (319) is fixedly installed on the inner wall of the receiving chamber. A rotating seat (308) is adapted to be installed above the lifting seat (305). Four groups of extrusion rods are arranged in an array at the bottom of the rotating seat (308). The extrusion bevel teeth (309) are provided with a vertical limiting portion (310) between each group of extrusion bevel teeth (309) for cooperating with the limiting column (319) to limit the rotation of the rotating seat (308); the top of the rotating seat (308) is abutted and connected with a spring base (311); the top of the spring base (311) is connected with a return spring (313); the top of the return spring (313) is connected with a spring top seat (312); the top of the accommodating cavity is provided with a cylinder cover (314); the cylinder cover (314) is rotatably mounted on the top of the cylinder body (302); and the transmission shaft (315) is fixedly connected to the rotating seat (308).

3. A land resource data collection device according to claim 2, characterized in that: The weather vane assembly (401) comprises a first torsion shaft (403) installed in a mounting seat (318), the first torsion shaft (403) is connected to a connecting rod (402), one end of the connecting rod (402) is integrally formed with a contact portion which is at a 90° angle with the connecting rod (402), the other end of the connecting rod (402) is connected to a guide column (404), a sliding block (406) is slidably sleeved on the guide column (404), two groups of first connecting rods (407) are symmetrically arranged on the sliding block (406), the first connecting rod (407) is connected to a second connecting rod (409) via a second torsion shaft (408), and the end of the second connecting rod (409) is hinged. The end of the connecting rod (402) is connected, and a folding cloth is folded and installed between the second connecting rod (409) and the guide column (404). The slider (406) is connected to a pull rod (410). A through hole is opened in the connecting rod (402). The pull rod (410) is inserted into the through hole. The end of the pull rod (410) is connected to a pull rope. The pull rope extends toward the contact portion of the connecting rod (402) and is connected to a lifting plate (411). The lifting plate (411) is lifted and installed on the contact portion. The lifting plate (411) is compatible with the extrusion block (317). The extrusion block (317) pushes the lifting plate (411) downward, and pulls the slider (406) to move and open the folding cloth.

4. A land resource data collection device according to claim 3, characterized in that: The elastic force of the first torsion shaft (403) is smaller than the elastic force of the return spring (313) when it is returned.

5. The land resource data collection device according to claim 3, characterized in that: The end of the guide column (404) is fixedly mounted with a limit seat (405), and the limit seat (405) limits the limit position of the slider (406), so that an initial angle is maintained between the first connecting rod (407) and the second connecting rod (409).

6. A land resource data collection device according to claim 2, characterized in that: The cylinder (302) is connected to a connecting shaft (303), the connecting shaft (303) is connected to an auxiliary motor (205), a partition (206) is provided inside the information collection component (201), and the auxiliary motor (205) is fixedly mounted on the partition (206).

7. The land resource data collection device according to claim 1, characterized in that: The information collection component (201) is also provided with a base plate (208), a driving motor (207) is installed on the base plate (208), the driving motor (207) is connected to a turntable (209) by power, and an auxiliary camera (210) is installed on the turntable (209) at a certain angle.

8. The land resource data collection device according to claim 1, characterized in that: The end of the brush rod (212) contacts the bottom surface of the transparent cover (204), and the end of the brush rod (212) is connected to an electric rod, which can drive the brush rod (212) to extend to a certain length.

9. The land resource data collection device according to claim 1, characterized in that: The information collection component (201) is fixedly connected to two groups of connection frames (202) on the top, and the connection frames (202) are connected to pin hole plates (203) on the top. Pin holes are provided on the pin hole plates (203) for matching with pins to connect with the drone.

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