Unmanned aerial vehicle aerial photogrammetry ground target

Abstract

The invention belongs to the technical field of unmanned aerial vehicle surveying and mapping targets, and particularly relates to an unmanned aerial vehicle aerial photogrammetry ground target which comprises a base, a vertical frame is installed on the base through a supporting mechanism, a center shaft rod penetrates through the vertical frame in the front-back direction, and a display screen and a solar cell panel are installed on the center shaft rod through a right-angle installation frame. A switching mechanism is arranged in the vertical frame, the central shaft rod can be driven to rotate through the switching mechanism, the right-angle installation frame is controlled to rotate, and position switching of the display screen and the solar cell panel is carried out. The unmanned aerial vehicle surveying and mapping target has the advantages that the target work of unmanned aerial vehicle surveying and mapping can be effectively carried out in the natural environment for a long time, the self-power-supply and self-cleaning functions are achieved, the service life is long, and the environmental adaptability is high.

Description

Technical Field

[0001] The present invention relates to the technical field of UAV mapping targets, and particularly to a ground target for UAV aerial photogrammetry. Background Art

[0002] In UAV aerial photogrammetry work, ground targets are used to improve the accuracy and efficiency of image processing. Especially in the fields of surveying and mapping, photogrammetry, and 3D modeling, ground targets usually have high-contrast patterns or colors, which are convenient for the identification and positioning of UAV cameras.

[0003] In the prior art, ground targets are extremely vulnerable to lighting conditions and environmental factors. Therefore, the method of using an electronic display screen to display the target pattern has gradually been adopted. However, since photogrammetry work cannot be completed in a short period of time, ground targets usually need to stay at a designated position for a long time. During the retention process, dust and stains are easily attached to the target display screen, thus affecting the later display effect of the target. Moreover, the display screen needs to continuously maintain a powered state, and the method of connecting and pulling the power cord is highly dangerous and is easily affected by environmental factors.

[0004] To solve the above problems, we propose a ground target for UAV aerial photogrammetry. Summary of the Invention

[0005] The purpose of the present invention is to solve the problems in the background art, and to propose a ground target for UAV aerial photogrammetry.

[0006] To achieve the above purpose, the present invention adopts the following technical solution: A ground target for UAV aerial photogrammetry, including a base, a vertical frame is installed on the base through a support mechanism. A central shaft rod passes through the vertical frame in the front-rear direction. A display screen and a solar panel are installed on the central shaft rod through a right-angle mounting frame. A conversion mechanism is arranged inside the vertical frame. Through the conversion mechanism, the central shaft rod can be driven to rotate, controlling the rotation of the right-angle mounting frame to switch the positions of the display screen and the solar panel;

[0007] The outer end of the vertical frame is fixedly sleeved with a bottom plate. The upper end of the bottom plate is fixedly connected with a processing frame. The right-angle mounting frame is located inside the processing frame and cleaning mechanisms are arranged on both sides. The cleaning mechanism includes a moving component. A scraping rod component is arranged on the side of the moving component close to the right-angle mounting frame. A scraping rod processing mechanism is arranged on the central shaft rod. Through the scraping rod processing mechanism, the scraping rod components on the two cleaning mechanisms can be cleaned and wetted. A water supply mechanism is arranged at the lower end of the bottom plate.

[0008] In the above-mentioned ground target for UAV aerial photogrammetry, the support mechanism includes a support column fixedly connected to the base. A lower end plate is fixedly connected to the support column. A jack is fixedly installed on the lower end plate. The telescopic end of the jack is fixedly connected to an upper end plate, and the vertical frame is fixed on the upper end plate.

[0009] In the above-mentioned ground target for UAV aerial photogrammetry, the right-angle mounting frame is composed of a right-angle plate and two connecting rods. The display screen and the solar panel are respectively fixedly installed on the two outer end faces of the right-angle plate. The two ends of the two connecting rods are respectively fixed to the inner side of the right-angle plate, and the central positions are fixed to the central shaft rod.

[0010] In the above-mentioned ground target for UAV aerial photogrammetry, the conversion mechanism includes a driving rod rotatably connected in the vertical frame. A first bevel gear is fixedly sleeved on the upper end of the driving rod. A second bevel gear is vertically meshed with the first bevel gear. The second bevel gear is fixedly sleeved on the central shaft rod. A first motor for driving the driving rod to rotate is fixedly installed on the lower end plate.

[0011] In the above-mentioned ground target for UAV aerial photogrammetry, the moving assembly includes a sliding rod and a threaded rod that are distributed parallel up and down. The sliding rod is fixedly connected to the front and rear inner walls of the processing frame. The threaded rod is rotatably connected to the front and rear inner walls of the processing frame. Moving sleeve blocks are sleeved on both the sliding rod and the threaded rod. A vertical rod is fixedly connected between the two moving sleeve blocks corresponding up and down. A second motor for driving the threaded rod to rotate is fixedly installed at the front end of the processing frame;

[0012] The scraping rod assembly includes two clamping plates arranged at intervals front and back. A cleaning sponge is fixedly connected between the two clamping plates. Spring pieces are fixedly connected between the two clamping plates and the two moving sleeve blocks on the same side. The upper and lower ends of each clamping plate are of an inverted bevel structure.

[0013] In the above-mentioned ground target for UAV aerial photogrammetry, the scraping rod processing mechanism includes a hollow sleeve box fixedly sleeved on the central shaft rod and located behind the right-angle mounting frame. Two processing rods are evenly fixedly connected to the outer peripheral surface of the hollow sleeve box. The two processing rods are arranged parallel to the connecting rods and the ends are provided with extrusion openings. The width of the extrusion openings is smaller than the maximum width of the scraping rod assembly. Spray heads are arranged on the inner walls of the extrusion openings. Built-in pipes for connecting the spray heads and the hollow sleeve box are arranged in the processing rods.

[0014] In the above-mentioned ground target for UAV aerial photogrammetry, the water supply mechanism includes a water tank, a gear pump, an accumulator and two pressing shut-off valves fixedly connected to the lower end of the bottom plate. A first connecting pipe is commonly connected between the water tank and the liquid inlet end of the gear pump. A second connecting pipe is commonly connected between the liquid outlet end of the gear pump and the liquid inlet end of the accumulator. A one-way valve is installed on the second connecting pipe. A third connecting pipe is commonly connected between the liquid outlet end of the accumulator and the pressing shut-off valve on the right side. A fourth connecting pipe is commonly connected between the two pressing shut-off valves. A water supply pipe is commonly connected between the pressing shut-off valve on the left side and the hollow sleeve box. Pressing blocks are fixedly connected to the pressing ends of the two pressing shut-off valves, and both pressing blocks extend above the bottom plate.

[0015] In the above-mentioned ground target for UAV aerial photogrammetry, two first sprockets are fixedly sleeved on the driving end of the gear pump. Both threaded rods are sleeved with one-way bearings. The inner rings of the two one-way bearings are fixedly connected to the corresponding threaded rods. The outer rings of the two one-way bearings are fixedly sleeved with second sprockets. A chain is commonly sleeved on the first sprocket and the second sprocket in the same plane.

[0016] In the above-mentioned ground target for UAV aerial photogrammetry, a water receiving hopper is fixedly connected to the left side wall of the processing frame. A water replenishing pipe is commonly connected between the lower end of the water receiving hopper and the water tank.

[0017] In the above-mentioned ground target for UAV aerial photogrammetry, a sewage outlet and a drain hole are opened on the bottom plate. A battery box is fixedly connected to the upper end of the base. A storage battery is installed in the battery box. An inner buckling type protection frame is fixedly connected to the upper end of the processing frame.

[0018] Compared with the prior art, the advantages of the present invention are as follows:

[0019] By setting the right-angle mounting frame, the display screen, the solar panel and the conversion mechanism, the ground target can be switched between two states: the working state and the charging and sleeping state. In the working state, the target pattern is displayed on the display screen, which is convenient for replacing the target pattern, has higher sharpness and contrast, is not affected by the dim environment, and makes it easier and clearer for the UAV to complete identification and positioning in the surveying and mapping work. In the charging and sleeping state, the solar panel generates electricity and stores electrical energy to ensure the long-term effective operation of the display screen in the working state, so that the ground target can work as a target at one position for a long time and effectively without additional connection to a power source, and has strong environmental adaptability.

[0020] By setting up two cleaning mechanisms, through the conversion of the conversion mechanism, the display screen and the solar panel can be rotated to the corresponding cleaning mechanism in sequence, so as to automatically carry out the surface cleaning work, ensure that the surface of the display screen is clean every time it is in the working state, does not affect the target display effect, ensure the effective progress of the UAV mapping work, and the surface of the solar panel is clean every time it is in the charging and sleeping state, effectively carrying out the power generation and storage work.

[0021] By setting up a scraping rod processing mechanism and a water supply mechanism, before the cleaning work is carried out, while the conversion mechanism drives the display screen and the solar panel to rotate, the two processing rods also rotate accordingly, and squeeze the corresponding scraping rod assembly. During the process, the water supply mechanism continuously supplies water, and both nozzles spray cleaning water towards the corresponding cleaning sponges, wetting the cleaning sponges that are about to carry out the cleaning work, so that they remain wet before the cleaning work and maintain a state with a good adsorption effect on dirt, and cleaning the cleaning sponges that have completed the cleaning work, automatically wetting and cleaning the cleaning sponges, ensuring the long-term and effective cleaning work.

[0022] To sum up, the present invention can effectively carry out the target work of UAV mapping in the natural environment for a long time, has the functions of self-power supply and self-cleaning, and has the characteristics of long service life and strong environmental adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a three-dimensional view of a ground target for UAV aerial photogrammetry proposed by the present invention;

[0024] Figure 2 It is a three-dimensional view of another perspective of a ground target for UAV aerial photogrammetry proposed by the present invention;

[0025] Figure 3 It is a partial perspective view of a ground target for UAV aerial photogrammetry proposed by the present invention;

[0026] Figure 4 It is a three-dimensional view of the conversion mechanism in a ground target for UAV aerial photogrammetry proposed by the present invention;

[0027] Figure 5 It is a three-dimensional view of the cleaning mechanism in a ground target for UAV aerial photogrammetry proposed by the present invention;

[0028] Figure 6 It is a three-dimensional view of the scraping rod assembly in a ground target for UAV aerial photogrammetry proposed by the present invention;

[0029] Figure 7 It is a three-dimensional view of the scraping rod processing mechanism in a ground target for UAV aerial photogrammetry proposed by the present invention;

[0030] Figure 8 A perspective view of a water supply mechanism in a ground target for unmanned aerial vehicle aerial photogrammetry proposed by the present invention.

[0031] In the figure: 1 base, 2 support column, 3 jack, 4 vertical frame, 5 central shaft rod, 6 right-angle plate, 7 connecting rod, 8 display screen, 9 solar panel, 10 first motor, 11 driving rod, 12 first bevel gear, 13 second bevel gear, 14 bottom plate, 15 processing frame, 16 sliding rod, 17 threaded rod, 18 second motor, 19 moving sleeve block, 20 vertical rod, 21 clamping plate, 22 cleaning sponge, 23 spring piece, 24 hollow sleeve box, 25 processing rod, 26 extrusion port, 27 nozzle, 28 built-in pipe, 29 water tank, 30 gear pump, 31 accumulator, 32 pressing shut-off valve, 33 first connecting pipe, 34 second connecting pipe, 35 third connecting pipe, 36 fourth connecting pipe, 37 water supply pipe, 38 pressing block, 39 chain, 40 water receiving hopper, 41 water replenishing pipe, 42 sewage outlet, 43 drainage hole, 44 battery box, 45 storage battery, 46 protection frame. Specific embodiments

[0032] The following embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention.

[0033] Referring to Figures 1 - 8 , an unmanned aerial vehicle aerial photogrammetry ground target includes a base 1. A vertical frame 4 is installed on the base 1 through a support mechanism. The support mechanism includes a support column 2 fixedly connected to the base 1. A lower end plate is fixedly connected to the support column 2. A jack 3 is fixedly installed on the lower end plate. The telescopic end of the jack 3 is fixedly connected to an upper end plate. The vertical frame 4 is fixed on the upper end plate. The jack 3 plays a supporting role and facilitates the height adjustment work during the installation of the ground target.

[0034] A central shaft rod 5 runs through the vertical frame 4 in the front-rear direction. The central shaft rod 5 is rotatably connected to the vertical frame 4. A display screen 8 and a solar panel 9 are installed on the central shaft rod 5 through a right-angle mounting frame. The right-angle mounting frame is composed of a right-angle plate 6 and two connecting rods 7. The display screen 8 and the solar panel 9 are respectively fixedly installed on the two outer end faces of the right-angle plate 6, and they are perpendicular to each other. The two ends of the two connecting rods 7 are respectively fixed to the inside of the right-angle plate 6, and the central position is fixed to the central shaft rod 5. The right-angle mounting frame can rotate around the central shaft rod 5. The connecting rod 7 and the right-angle plate 6 form an isosceles right triangle, which has high stability. The display screen 8 is used to display the electronic target pattern, which is convenient for replacing the target pattern, has higher sharpness and contrast, and is not affected by the dim environment.

[0035] A battery box 44 is fixedly connected to the upper end of the base 1. A storage battery 45 is installed in the battery box 44. The solar panel 9 can convert solar energy into electrical energy through the photovoltaic effect, which is the prior art. When used in conjunction with the storage battery 45, electrical energy can be effectively stored through an inverter, so as to supply power to each electrical component.

[0036] Refer to Figures 3 - 4 , a conversion mechanism is provided in the vertical frame 4. The conversion mechanism includes a driving rod 11 rotatably connected in the vertical frame 4. A first bevel gear 12 is fixedly sleeved on the upper end of the driving rod 11. A second bevel gear 13 is vertically engaged with the first bevel gear 12. The second bevel gear 13 is fixedly sleeved on the central shaft rod 5. A first motor 10 for driving the driving rod 11 to rotate is fixedly installed on the lower end plate. The first motor 10 can drive the central shaft rod 5 to rotate.

[0037] Specifically, the first motor 10 is a stepping motor, and the step angle of the first motor 10 is 90 degrees. The central shaft rod 5 can be driven to rotate through the conversion mechanism, and the right-angle mounting frame can be controlled to rotate to switch the positions of the display screen 8 and the solar panel 9. The forward and reverse rotations of the first motor 10 can complete the back-and-forth switching of the display screen 8 and the solar panel 9. When the display screen 8 is in the upper horizontal position, the local ground target is in the working state of unmanned aerial vehicle aerial photogrammetry. When the solar panel 9 is in the upper horizontal position, the local ground target is in the charging and sleeping state. The switching work between the two states is remotely controlled by the unmanned aerial vehicle equipment terminal for photogrammetry work, that is, when carrying out unmanned aerial vehicle photogrammetry work, the ground target is in the working state, and the target pattern is displayed by the display screen 8. When not carrying out unmanned aerial vehicle photogrammetry work, the ground target is in the charging and sleeping state, and the solar panel 9 replenishes electrical energy for the storage battery 45 to ensure the effective operation of the display screen 8 during subsequent work, so that the local ground target can effectively carry out target work at a position for a long time.

[0038] Refer to Figures 3 - 6 , a bottom plate 14 is fixedly sleeved on the outer end of the vertical frame 4. A processing frame 15 is fixedly connected to the upper end of the bottom plate 14. The right-angle mounting frame is located in the processing frame 15 and cleaning mechanisms are provided on both sides. A protective frame 46 in the form of an inward buckle is fixedly connected to the upper end of the processing frame 15, which plays a certain role in shielding and protection to prevent larger foreign objects from falling into the processing frame 15. The cleaning mechanism includes a moving component, and a scraping rod component is provided on one side of the moving component close to the right-angle mounting frame. The two moving components can drive the two scraping rod components to move respectively. In the working state of the ground target, the scraping rod component on the right side can clean the surface of the solar panel 9 during the moving process; in the charging and sleeping state, the scraping rod component on the left side can clean the surface of the display screen 8 during the moving process, ensuring that the surface of the display screen 8 is clean each time when in the working state and does not affect the target work, and the surface of the solar panel 9 is clean each time when in the charging and sleeping state, effectively carrying out the power generation and storage work.

[0039] The moving component includes a slide bar 16 and a threaded rod 17 that are distributed parallel to each other vertically. The slide bar 16 is fixedly connected to the front and rear inner walls of the processing frame 15, and the threaded rod 17 is rotatably connected to the front and rear inner walls of the processing frame 15. Moving sleeve blocks 19 are sleeved on both the slide bar 16 and the threaded rod 17. The lower moving sleeve block 19 is threadedly connected to the threaded rod 17, and the upper moving sleeve block 19 is slidably sleeved on the corresponding slide bar 16. A vertical rod 20 is fixedly connected between the two moving sleeve blocks 19 corresponding up and down, which serves to connect the two moving sleeve blocks 19 up and down. A second motor 18 for driving the rotation of the threaded rod 17 is fixedly installed at the front end of the processing frame 15. The second motor 18 can drive the corresponding threaded rod 17 to perform forward and reverse rotation work for a certain period.

[0040] The scraping bar component includes two clamping plates 21 arranged at intervals before and after. A cleaning sponge 22 is fixedly connected between the two clamping plates 21. Spring pieces 23 are fixedly connected between the two clamping plates 21 and the two moving sleeve blocks 19 on the same side. Through the moving component, the corresponding scraping bar component can be driven to move, so as to perform cleaning work with the cleaning sponge 22. The setting of the spring pieces 23 enables the two clamping plates 21 to move in position to a certain extent. The upper and lower ends of each clamping plate 21 are of an inverted bevel structure.

[0041] A scraping bar processing mechanism is provided on the central shaft rod 5. Through the scraping bar processing mechanism, the scraping bar components on the two sewage cleaning mechanisms can be cleaned and wetted. The initial position of the scraping bar component corresponds to the position of the scraping bar processing mechanism. The scraping bar processing mechanism includes a hollow sleeve box 24 fixedly sleeved on the central shaft rod 5 and located behind the right-angle mounting frame. Two processing rods 25 are uniformly fixedly connected to the outer peripheral surface of the hollow sleeve box 24. The two processing rods 25 are arranged parallel to the connecting rod 7 and the ends are provided with extrusion openings 26. The width of the extrusion openings 26 is smaller than the maximum width of the scraping bar component. Spray nozzles 27 are provided on the inner walls of the extrusion openings 26 for water spraying work. An internal pipe 28 connecting the spray nozzles 27 and the hollow sleeve box 24 is arranged in the processing rod 25.

[0042] Specifically, when converting between the working state and the charging and sleeping state, the right-angle mounting bracket rotates by 90 degrees. During the rotation process, the two processing rods 25 also rotate accordingly. The two extrusion ports 26 can contact the chamfered corners on the corresponding clamping plates 21 and then smoothly sleeved on the corresponding scraping rod assemblies, and squeeze the two clamping plates 21 towards the middle, so that the cleaning sponge 22 is compressed under force. During the movement, the nozzle 27 can continuously spray water towards the squeezed cleaning sponge 22. The processing rod 25 rotating from top to bottom mainly plays the role of wetting the cleaning sponge 22, keeping it wet before the cleaning and decontamination work. And the squeezed state makes it unable to reach the full water absorption state, thus maintaining a good adsorption effect on dirt. The processing rod 25 rotating from bottom to top mainly plays the role of cleaning the cleaning sponge 22, flushing the dirt attached after the cleaning and decontamination work, and can squeeze out stains to a certain extent under the squeezed state, cooperating with the flushing work. Ensure that the corresponding cleaning sponge 22 can maintain a good cleaning state before the cleaning and decontamination work of the display screen 8 and the solar panel 9, and ensure the cleaning and decontamination effect.

[0043] A water supply mechanism is provided at the lower end of the bottom plate 14. The water supply mechanism includes a water tank 29 fixedly connected to the lower end of the bottom plate 14, a gear pump 30, an accumulator 31, and two pressing shut-off valves 32. The gear pump 30 and the accumulator 31 are both prior arts, and the water tank 29 stores cleaning water.

[0044] Two first sprockets are fixedly sleeved on the driving end of the gear pump 30. Both of the two threaded rods 17 are sleeved with one-way bearings. The inner rings of the two one-way bearings are fixedly connected to the corresponding threaded rods 17. The rotation directions of the two one-way bearings are the same. The outer rings of the two one-way bearings are fixedly sleeved with second sprockets. A chain 39 is commonly sleeved on the first sprocket and the second sprocket in the same plane. When the second motor 18 controls the scraping rod assembly to move forward through the threaded rod 17, the outer ring and the inner ring of the one-way bearing are locked and rotate synchronously, so that the gear pump 30 can be driven to rotate through the chain 39. The chain 39 on the other side also rotates, but the corresponding threaded rod 17 is not affected. When the second motor 18 controls the scraping rod assembly to move backward through the threaded rod 17, the inner ring of the one-way bearing rotates and the outer ring is not affected, and the gear pump 30 cannot rotate. From this, it can be known that when the two second motors 18 perform forward drive separately, they can both drive the gear pump 30 to work.

[0045] A first connecting pipe 33 is commonly connected between the water tank 29 and the liquid inlet end of the gear pump 30. A second connecting pipe 34 is commonly connected between the liquid outlet end of the gear pump 30 and the liquid inlet end of the accumulator 31. When the gear pump 30 works, it can input clean water into the accumulator 31 for pressurized energy storage work. A check valve is installed on the second connecting pipe 34 to prevent liquid backflow. A third connecting pipe 35 is commonly connected between the liquid outlet end of the accumulator 31 and the pressing shut-off valve 32 on the right side. A fourth connecting pipe 36 is commonly connected between the two pressing shut-off valves 32. A water supply pipe 37 is commonly connected between the pressing shut-off valve 32 on the left side and the hollow sleeve box 24. When both pressing shut-off valves 32 are in the open state, the clean water in the accumulator 31 can be transported to the hollow sleeve box 24 under high pressure and sprayed out from the two nozzles 27.

[0046] Pressing blocks 38 are fixedly connected to the pressing ends of the two pressing shut-off valves 32. Both pressing blocks 38 extend above the bottom plate 14. When the local ground target is in the working state and the charging and sleeping state, one pressing block 38 can be pressed by one end of the right-angle plate 6 close to the bottom plate 14, so that one pressing shut-off valve 32 remains in the closed state. Then, in the working state and the charging and sleeping state, the nozzles 27 cannot spray clean water. Only during the conversion process between the working state and the charging and sleeping state, neither of the two pressing blocks 38 is pressed, and both pressing shut-off valves 32 remain in the open state. The two nozzles 27 can maintain the spraying state during the rotation of the processing rod 25 until the state conversion is completed, and then one pressing block 38 is pressed and the nozzles 27 stop spraying water, ensuring the effective use of clean water and avoiding unnecessary waste.

[0047] Each time the cleaning work is carried out, a certain amount of clean water can be injected into the accumulator 31 through the gear pump 30 for energy storage, ensuring stable water supply for the cleaning and wetting work of the cleaning sponge 22.

[0048] A water receiving hopper 40 is fixedly connected to the left side wall of the processing frame 15. A water replenishing pipe 41 is commonly connected between the lower end of the water receiving hopper 40 and the water tank 29, which is used to replenish clean water into the water tank 29. A sewage discharge port 42 and a drainage hole 43 are opened on the bottom plate 14 to facilitate the discharge of sewage in the processing frame 15.

[0049] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A drone aerial photogrammetry ground target, comprising a base (1), characterized in that: A vertical frame (4) is mounted on the base (1) via a supporting mechanism, a central shaft (5) passes through the vertical frame (4) in the front-to-back direction, a display screen (8) and a solar panel (9) are mounted on the central shaft (5) via a right-angle mounting frame, and a conversion mechanism is provided in the vertical frame (4), which can drive the central shaft (5) to rotate, control the rotation of the right-angle mounting frame, and switch the positions of the display screen (8) and the solar panel (9); The outer end of the vertical frame (4) is fixedly sleeved with a bottom plate (14), the upper end of the bottom plate (14) is fixedly connected with a processing frame (15), the right-angle mounting frame is located in the processing frame (15) and is provided with a dirt cleaning mechanism on both sides, the dirt cleaning mechanism comprises a moving component, a scraper rod component is provided on the side of the moving component close to the right-angle mounting frame, a scraper rod processing mechanism is provided on the central shaft (5), and the scraper rod processing mechanism can be used to clean and moisten the scraper rod components on the two dirt cleaning mechanisms, and a water supply mechanism is provided at the lower end of the bottom plate (14).

2. The ground target measurement by drone aerial photogrammetry according to claim 1, characterized in that: The support mechanism comprises a support column (2) fixedly connected to a base (1), a lower end plate fixedly connected to the support column (2), a jack (3) fixedly mounted on the lower end plate, a telescopic end of the jack (3) fixedly connected to an upper end plate, and the vertical frame (4) fixedly connected to the upper end plate.

3. The ground target surveying method using drone aerial photogrammetry according to claim 1, characterized in that: The right-angle mounting frame is composed of a right-angle plate (6) and two connecting rods (7); the display screen (8) and the solar panel (9) are respectively fixedly mounted on two outer end surfaces of the right-angle plate (6); the two ends of the two connecting rods (7) are respectively fixed to the inner side of the right-angle plate (6), and the center position is fixed to the central shaft (5).

4. The UAV aerial photogrammetry ground target according to claim 2, characterized in that: The conversion mechanism comprises a driving rod (11) rotatably connected to the vertical frame (4); a first bevel gear (12) is fixedly sleeved on the upper end of the driving rod (11); a second bevel gear (13) is vertically meshed on the first bevel gear (12); the second bevel gear (13) is fixedly sleeved on the central shaft (5); and a first motor (10) for driving the driving rod (11) to rotate is fixedly mounted on the lower end plate.

5. The ground target measurement by drone aerial photogrammetry according to claim 1, characterized in that: The moving assembly comprises a sliding rod (16) and a threaded rod (17) which are arranged in parallel in the upper and lower parts, the sliding rod (16) being fixedly connected to the front and rear inner walls of the processing frame (15), the threaded rod (17) being rotatably connected to the front and rear inner walls of the processing frame (15), the sliding rod (16) and the threaded rod (17) being sleeved with a moving sleeve block (19), a vertical rod (20) being fixedly connected between the two corresponding moving sleeve blocks (19) in the upper and lower parts, and a second motor (18) for driving the threaded rod (17) to rotate is fixedly installed at the front end of the processing frame (15); The scraper rod assembly comprises two clamping plates (21) spaced apart from each other, a cleaning sponge (22) being fixedly connected between the two clamping plates (21), a spring sheet (23) being fixedly connected between the two clamping plates (21) and two movable sleeve blocks (19) located on the same side, and upper and lower ends of each clamping plate (21) are chamfered angle structures.

6. The ground target measurement by drone aerial photogrammetry according to claim 5, characterized in that: The scraper rod processing mechanism comprises a hollow sleeve (24) fixedly sleeved on a central shaft (5) and located behind a right-angle mounting frame, two processing rods (25) are evenly and fixedly connected to the outer peripheral surface of the hollow sleeve (24), the two processing rods (25) are arranged in parallel with the connecting rod (7) and both ends are provided with an extrusion port (26), the width of the extrusion port (26) is smaller than the maximum width of the scraper rod assembly, a nozzle (27) is provided on the inner wall of the extrusion port (26), and a built-in pipe (28) connecting the nozzle (27) and the hollow sleeve (24) is provided in the processing rod (25).

7. The UAV aerial photogrammetry ground target according to claim 6, characterized in that: The water supply mechanism comprises a water tank (29) fixedly connected to the lower end of the bottom plate (14), a gear pump (30), an accumulator (31) and two push-off valves (32); a first connecting pipe (33) is commonly connected between the water tank (29) and the liquid inlet end of the gear pump (30); a second connecting pipe (34) is commonly connected between the liquid outlet end of the gear pump (30) and the liquid inlet end of the accumulator (31); a one-way valve is installed on the second connecting pipe (34); and the accumulator (31) is commonly connected to the liquid outlet end of the gear pump (30). A third connecting pipe (35) is commonly connected between the liquid outlet end of the push-to-close valve (1) and the push-to-close valve (32) located on the right side, a fourth connecting pipe (36) is commonly connected between the two push-to-close valves (32), a water supply pipe (37) is commonly connected between the push-to-close valve (32) located on the left side and the hollow sleeve (24), and the pressing ends of the two push-to-close valves (32) are fixedly connected to pressing blocks (38), and the two pressing blocks (38) extend above the bottom plate (14).

8. The ground target measurement by drone aerial photogrammetry according to claim 7, characterized in that: The driving end of the gear pump (30) is fixedly sleeved with two first sprockets, the two threaded rods (17) are sleeved with one-way bearings, the inner rings of the two one-way bearings are fixedly connected to the corresponding threaded rods (17), the outer rings of the two one-way bearings are fixedly sleeved with second sprockets, and the first sprocket and the second sprocket located in the same plane are sleeved with a chain (39).

9. The ground target measurement by drone aerial photogrammetry according to claim 7, characterized in that: A water receiving bucket (40) is fixedly connected to the left side wall of the processing frame (15), and a water supply pipe (41) is connected between the lower end of the water receiving bucket (40) and the water tank (29).

10. The ground target measurement by drone aerial photogrammetry according to claim 1, characterized in that: The bottom plate (14) is provided with a sewage outlet (42) and a drainage hole (43); the upper end of the base (1) is fixedly connected to a battery box (44); a storage battery (45) is installed in the battery box (44); and the upper end of the processing frame (15) is fixedly connected to an inner buckle protection frame (46).

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