Measuring and positioning equipment for unmanned aerial vehicle

Abstract

The invention relates to the field of unmanned aerial vehicles, in particular to unmanned aerial vehicle measuring and positioning equipment which comprises a cabinet body, a rotary table is rotatably mounted at the lower end of the cabinet body, a lifting table is slidably mounted in the cabinet body, a lifting mechanism for lifting the lifting table is arranged in the cabinet body, and an inclined table is rotatably mounted in the lifting table. The cabinet body is provided with a tilting mechanism used for tilting the tilting table, and the tilting table is provided with a stabilizing mechanism used for carrying the unmanned aerial vehicle and an aligning mechanism used for aligning the unmanned aerial vehicle. The lifting mechanism comprises two lifting grooves formed in the cabinet body, lifting screws are rotationally installed in the lifting grooves, the lifting screws are sleeved with lifting blocks in a threaded mode, and the lifting blocks and the lifting table are fixedly installed. Compared with the prior art, the angle direction of the unmanned aerial vehicle can be adjusted according to the external wind direction and wind power, parking of the unmanned aerial vehicle is facilitated, the unmanned aerial vehicle is actively borne and parked, and the unmanned aerial vehicle and the landing platform cannot be damaged.

Description

Technical Field

[0001] The present invention relates to the field of unmanned aerial vehicles, and specifically to a measurement and positioning device for unmanned aerial vehicles. Background Art

[0002] As disclosed in the invention with publication number CN111367306A, a positioning device for an unmanned aerial vehicle is disclosed. Its structure includes a base, a rotating landing platform which is rotatably arranged on the base and has a landing plane for the unmanned aerial vehicle to land on, a positioning mechanism which includes at least two positioning push rods arranged on the base and at least two clamping plates correspondingly arranged on the positioning push rods; and a driving device for driving the rotating landing platform. However, this application still has deficiencies. For example, although the unmanned aerial vehicle is limited to a preset position on the landing plane, reducing the probability of the unmanned aerial vehicle tipping during the pushing process after landing, in actual landing, most of the positioning landing platforms for unmanned aerial vehicles are set outdoors, and the flight of the unmanned aerial vehicle is easily affected by natural wind. When hovering above the landing platform, the unmanned aerial vehicle needs to generate a certain inclination by itself to offset the influence of natural wind. When landing, the unmanned aerial vehicle will form a certain angle with the plane of the landing platform. When the unmanned aerial vehicle lands, it will first contact the landing platform at a single point and then land on the platform, and the unmanned aerial vehicle will generate greater vibration during the landing process.

[0003] When the unmanned aerial vehicle finishes measurement and needs to be positioned and parked on the positioning landing platform of the unmanned aerial vehicle, the unmanned aerial vehicle will hover at a certain height above the landing platform and then power off. At this time, the unmanned aerial vehicle will fall on the landing platform under the action of its own gravity, and at this time, the unmanned aerial vehicle will cause impacts on the landing platform and itself, and over time, it is easy to cause damage to the landing platform and the unmanned aerial vehicle itself.

[0004] Therefore, based on the above problems, we have invented a measurement and positioning device for unmanned aerial vehicles. Summary of the Invention

[0005] In view of the deficiencies of the prior art, the present invention provides a measurement and positioning device for unmanned aerial vehicles to solve the problems raised in the above background art.

[0006] To achieve the above object, the present invention provides the following technical solution: A measurement and positioning device for unmanned aerial vehicles, including a cabinet body. A turntable is rotatably installed at the lower end of the cabinet body. A lifting platform is slidably installed in the cabinet body. An elevating mechanism for lifting the lifting platform is provided in the cabinet body. An inclined platform is rotatably installed in the lifting platform. An inclination mechanism for inclining the inclined platform is provided on the cabinet body. A stabilizing mechanism for receiving the unmanned aerial vehicle and an aligning mechanism for aligning the unmanned aerial vehicle are provided on the inclined platform;

[0007] The lifting mechanism includes two lifting grooves arranged inside the cabinet. A lifting screw rod is rotatably installed in the lifting groove. A lifting block is sleeved on the external thread of the lifting screw rod. The lifting block is fixedly installed with the lifting platform. A transmission cavity is arranged inside the cabinet. The lower ends of the two lifting screw rods all rotatably penetrate through the cabinet and extend to be arranged inside the transmission cavity. The two lifting screw rods are in transmission connection through a third transmission mechanism. A lifting motor is installed inside the transmission cavity. The driving shaft of the lifting motor is coaxially installed with the lifting screw rod.

[0008] Further, the third transmission mechanism includes two fourth belt pulleys. The two fourth belt pulleys are respectively coaxially installed with the two lifting screw rods. The two fourth belt pulleys are in transmission connection through a synchronous belt. A limiting bracket for preventing the synchronous belt from falling off is arranged inside the transmission cavity.

[0009] Further, the tilting mechanism includes a support column rotatably installed at the upper end of the cabinet. A fan is installed on the support column. A counterweight is installed on one side of the support column away from the fan. A wind direction sensor and a wind speed sensor are installed on the counterweight. An inclined groove is arranged inside the lifting platform. An inclined motor is installed in the inclined groove. The driving shaft of the inclined motor is coaxially installed with an inclined gear. A tooth groove matched with the inclined gear is arranged on the inclined platform. The wind speed sensor is electrically connected with the inclined motor.

[0010] Further, the stabilizing mechanism includes two T-shaped grooves arranged on the inclined platform. A driving screw rod is rotatably installed in the T-shaped groove. A vertical plate is threadedly connected to the upper end of the driving screw rod. A U-shaped plate is installed at the upper end of the vertical plate. Two cavities are arranged inside the inclined platform. The lower ends of the two driving screw rods all rotatably penetrate through the inclined platform and extend to be respectively arranged inside the two cavities. The two driving screw rods are in transmission connection through a first transmission mechanism. A driving motor is installed inside one of the cavities. The driving shaft of the driving motor is coaxially installed with the driving screw rod. Two L-shaped plates are arranged on both sides of the U-shaped plate. The two L-shaped plates are all rotatably installed with the inclined platform through a rotating rod. A pressing plate is installed inside the L-shaped plate.

[0011] Further, the first transmission mechanism includes two first belt pulleys. The two first belt pulleys are respectively coaxially installed with the two driving screw rods. The two first belt pulleys are in transmission connection through a synchronous belt. A through hole matched with the synchronous belt is penetrated through the inclined platform.

[0012] Furthermore, a buffer groove is provided at the inner bottom of the U-shaped plate, a buffer plate is slidably installed in the buffer groove, a plurality of buffer springs are installed between the buffer plate and the inner bottom of the buffer groove, a driving groove is provided at the lower end of the buffer plate, a rotating shaft is provided in the driving groove, a driving gear is installed outside the rotating shaft, a tooth groove meshing with the driving gear is provided in the driving groove, and a limiting groove is provided on the inner side of both arms of the U-shaped plate, a limiting plate is slidably installed in the limiting groove, a rotating screw is rotatably installed in the limiting groove, the rotating screw is threadedly connected to the limiting plate, a transmission groove is provided in the limiting groove, the rotation of the rotating shaft passes through the U-shaped plate and is rotatably connected to the inner wall of the transmission groove, and the rotating shaft and the rotating screw are connected by a second transmission mechanism.

[0013] Furthermore, the second transmission mechanism includes a second pulley and a third pulley, the second pulley is coaxially installed with the rotating shaft, the third pulley is coaxially installed with the rotating screw, and the second pulley and the third pulley are connected by a synchronous belt transmission.

[0014] Furthermore, the alignment mechanism includes two grooves arranged on the tilting platform, a bidirectional screw is rotatably installed between the two grooves, the external thread sleeve of the bidirectional screw is provided with two threaded blocks, the two threaded blocks are respectively slidably connected to the inner walls of the two grooves, an alignment plate is slidably installed on the upper end of the tilting platform, the alignment plate and the threaded blocks are fixedly installed, a driving cavity is provided in the tilting platform, the bidirectional screw is arranged through the driving cavity, an alignment motor is installed in the driving cavity, a driving wheel is coaxially installed on the driving shaft of the alignment motor, and a driven wheel meshing with the driving wheel is coaxially installed on the bidirectional screw.

[0015] Furthermore, both threaded blocks are provided with threaded holes matching the bidirectional screws, and the threads in the two threaded holes have opposite rotation directions.

[0016] Compared with the existing technology, the present invention provides a UAV measurement and positioning device with the following advantages:

[0017] 1. By setting up a tilt mechanism, the direction and angle of the tilt platform are adaptively adjusted according to the wind direction and wind force of the external environment, so that the angle of the tilt platform is the same as the tilt angle of its supporting components when the drone is hovering. When the drone lands and parks, there will be no single-point collision, and the vibration during parking will be reduced.

[0018] 2. By setting up a stabilizing mechanism and an alignment mechanism, the U-shaped plate can support and fix the supporting components of the drone when the drone is hovering, so that the pressure of the drone's own gravity is actively borne by the U-shaped plate. When the drone lands, there will be no collision between the drone and the tilting platform, which is safe for parking the drone and will not cause damage to the drone and the landing platform.

[0019] This application can adjust its own angle and direction according to the external wind direction and wind force, which is convenient for the parking of the drone, and actively undertakes the parking of the drone without causing damage to the drone and the landing platform. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic structural diagram of the present invention;

[0021] Figure 2 is a perspective structural view of the present invention;

[0022] Figure 3 is a schematic diagram of the internal structure of the cabinet in the present invention;

[0023] Figure 4 is a perspective structural view of the lifting platform and the tilting platform in the present invention;

[0024] Figure 5 is a perspective structural view of the stabilizing mechanism in the present invention;

[0025] Figure 6 is a perspective structural view of the alignment mechanism in the present invention;

[0026] Figure 7 is a perspective view of the internal structure of the U-shaped plate in the present invention;

[0027] Figure 8 is a schematic structural diagram of the L-shaped plate in the present invention;

[0028] Figure 9 is a schematic structural diagram of the U-shaped plate in the present invention;

[0029] Figure 10 is a schematic structural diagram of the buffer plate in the present invention.

[0030] In the figure: 1, cabinet body; 2, turntable; 3, tilting mechanism; 4, lifting platform; 5, lifting mechanism; 6, tilting table; 7, tilting groove; 8, tilting motor; 9, tilting gear; 10, stabilizing mechanism; 11, T-shaped groove; 12, cavity; 13, driving screw; 14, vertical plate; 15, U-shaped plate; 16, driving motor; 17, first transmission mechanism; 18, first pulley; 19, L-shaped plate; 20, pressing plate; 21, rotating rod; 22, buffer groove; 23, buffer plate; 24, buffer spring; 25, limiting groove; 26, limiting plate; 27, rotating shaft; 28, rotating lead screw; 29, second transmission mechanism; 30, second pulley; 31, third pulley; 32, driving groove; 33, driving gear; 34, aligning mechanism; 35, groove; 36, bidirectional screw; 37, threaded block; 38, aligning plate; 39, driving cavity; 40, aligning motor; 41, driving wheel; 42, driven wheel; 43, transmission cavity; 44, third transmission mechanism; 45, lifting motor; 46, fourth pulley; 47, lifting block; 48, support column; 49, counterweight block; 50, fan; 51, lifting screw; 52, transmission groove; 53, lifting groove. Specific implementation mode

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0032] As introduced in the background art, there are deficiencies in the prior art. To solve the above technical problems, the present application proposes a drone measurement and positioning device.

[0033] As Figures 1-10 shown, a drone measurement and positioning device includes a cabinet body 1. A turntable 2 is rotatably installed at the lower end of the cabinet body 1. It should be noted that the turntable 2 rotates with the cabinet body 1 through an electric motor. A lifting platform 4 is slidably installed in the cabinet body 1. A lifting mechanism 5 for lifting the lifting platform 4 is provided in the cabinet body 1. A tilting table 6 is rotatably installed in the lifting platform 4. A tilting mechanism 3 for tilting the tilting table 6 is provided on the cabinet body 1. A stabilizing mechanism 10 for receiving the drone and an aligning mechanism 34 for aligning the drone are provided on the tilting table 6;

[0034] In the present invention, the lifting mechanism 5 includes two lifting grooves 53 provided in the cabinet 1. A lifting screw 51 is rotatably installed in the lifting groove 53. An external thread of the lifting screw 51 is sleeved with a lifting block 47. The lifting block 47 is fixedly installed with the lifting platform 4. A transmission cavity 43 is provided in the cabinet 1. Lower ends of the two lifting screws 51 rotatably penetrate through the cabinet 1 and extend into the transmission cavity 43. The two lifting screws 51 are drivingly connected through a third transmission mechanism 44. Specifically, the third transmission mechanism 44 includes two fourth pulleys 46. The two fourth pulleys 46 are coaxially installed with the two lifting screws 51 respectively. The two fourth pulleys 46 are drivingly connected through a synchronous belt. A limiting bracket for preventing the synchronous belt from falling off is provided in the transmission cavity 43. A lifting motor 45 is installed in the transmission cavity 43. A driving shaft of the lifting motor 45 is coaxially installed with the lifting screw 51.

[0035] Through the above technical features: The lifting motor 45 drives the two lifting screws 51 to rotate. The two lifting screws 51 drive the lifting platform 4 to lift through the lifting block 47 until it reaches a suitable position, so as to store the lifting platform 4 and the unmanned aerial vehicle parked on the inclined platform 6, which is convenient for subsequent conveying of the unmanned aerial vehicle.

[0036] In the present invention, the tilting mechanism 3 includes a support column 48 rotatably installed at the upper end of the cabinet 1. It should be noted that an angle sensor is installed on the support column 48. The angle sensor is electrically connected to the electric motor. A fan 50 is installed on the support column 48. A counterweight 49 is installed on one side of the support column 48 away from the fan 50. A wind direction sensor and a wind speed sensor are installed on the counterweight 49. It should be noted that the wind direction sensor is connected to the unmanned aerial vehicle through radio waves. An inclined groove 7 is provided in the lifting platform 4. An inclined motor 8 is installed in the inclined groove 7. A driving shaft of the inclined motor 8 is coaxially installed with an inclined gear 9. A tooth groove matching the inclined gear 9 is provided on the inclined platform 6. The wind speed sensor is electrically connected to the inclined motor 8.

[0037] Through the above technical features: When there is wind in the external environment, the wind blows the fan 50 to rotate. Under the action of the counterweight 49, the fan 50 drives the support column 48 to rotate, so that the fan 50 faces the direction of the wind. At this time, a certain included angle is formed between the support column 48 and the cabinet 1. At this time, the electric motor drives the cabinet 1 to rotate until the support column 48 returns to the initial position. The wind speed sensor monitors the wind force magnitude, and then the driving shaft of the inclined motor 8 drives the inclined gear 9 to rotate. The inclined gear 9 drives the inclined platform 6 to rotate until it reaches a suitable position. That is, the direction and angle of the unmanned aerial vehicle landing platform can be adjusted according to the current wind direction and wind force to adapt to the inclined angle of the unmanned aerial vehicle, so that the unmanned aerial vehicle can land parallelly when landing and parking, avoiding the situation of single-point collision between the unmanned aerial vehicle landing and the landing platform, and reducing the vibration during parking.

[0038] In the present invention, the stabilizing mechanism 10 includes two T-slots 11 provided on the tilting platform 6, a driving screw 13 is rotatably installed in the T-slot 11, the upper end of the driving screw 13 is threadedly connected to a vertical plate 14, and a U-shaped plate 15 is installed on the upper end of the vertical plate 14. Two cavities 12 are provided in the tilting platform 6, and the lower ends of the two driving screws 13 are rotated to penetrate the tilting platform 6 and extend into the two cavities 12 respectively. The two driving screws 13 are connected by a first transmission mechanism 17. Further, the first transmission mechanism 17 includes two first pulleys 18, and the two first The pulleys 18 are coaxially mounted with the two drive screws 13 respectively, and the two first pulleys 18 are connected by a synchronous belt transmission. A through hole matching the synchronous belt is provided on the tilting table 6. A drive motor 16 is installed in one of the cavities 12, and the drive shaft of the drive motor 16 is coaxially mounted with the drive screw 13. Two L-shaped plates 19 are provided on both sides of the U-shaped plate 15. The two L-shaped plates 19 are rotatably mounted with the tilting table 6 through a rotating rod 21. A pressure plate 20 is installed in the L-shaped plate 19. It should be noted that the rotating rod 21 is rotatably connected with the tilting table 6 through a spiral spring.

[0039] In the present invention, a buffer groove 22 is provided at the inner bottom of the U-shaped plate 15, and a buffer plate 23 is slidably installed in the buffer groove 22. It should be noted that a pressure sensor is installed on the buffer plate 23, and a plurality of buffer springs 24 are installed between the buffer plate 23 and the inner bottom of the buffer groove 22. A driving groove 32 is provided at the lower end of the buffer plate 23, and a rotating shaft 27 is provided in the driving groove 32. A driving gear 33 is installed outside the rotating shaft 27, and a tooth groove meshing with the driving gear 33 is provided in the driving groove 32. The inner sides of the two arms of the U-shaped plate 15 are provided with a limiting groove 25, and a limiting plate 26 is slidably installed in the limiting groove 25. A rotating shaft 27 is rotatably installed in the limiting groove 25. The movable screw 28 should be noted that the external threads of the two rotating screws 28 have opposite rotation directions. The rotating screw 28 is threadedly connected to the limit plate 26. A transmission groove 52 is provided in the limit groove 25. The rotation of the rotating shaft 27 passes through the U-shaped plate 15 and is rotatably connected to the inner wall of the transmission groove 52. The rotating shaft 27 and the rotating screw 28 are connected by a second transmission mechanism 29. Furthermore, the second transmission mechanism 29 includes a second pulley 30 and a third pulley 31. The second pulley 30 is coaxially installed with the rotating shaft 27, and the third pulley 31 is coaxially installed with the rotating screw 28. The second pulley 30 and the third pulley 31 are connected by a synchronous belt transmission.

[0040] Through the above technical features: when the drone hovers above the tilting table 6, the driving motor 16 drives the two driving screws 13 to rotate. The two driving screws 13 drive the vertical plate 14 to move up and down. The vertical plate 14 drives the U-shaped plate 15 to move up and down until the supporting component of the drone enters the U-shaped plate 15. At this time, the supporting component of the drone presses the buffer plate 23. When the pressure reaches a predetermined value, the power supply of the drone is cut off. At this time, the supporting component of the drone pushes the buffer plate 23. The buffer plate 23 drives the rotating shaft 27 to rotate through the driving gear 33. The rotating shaft 27 drives the rotating screw rod 28 to rotate. The rotating screw rod 28 drives the limiting plate 26 to move. The limiting plate 26 limits and fixes the supporting component of the drone. Then the U-shaped plate 15 falls back until the supporting component of the drone is placed in the L-shaped plate 19. At this time, under the pressure of the supporting component of the drone, the L-shaped plate 19 rotates and wraps the supporting component of the drone, thereby fixing the drone. When the drone lands, there will be no impact, and the parking safety of the drone is relatively high, and no damage will be caused.

[0041] In the present invention, the alignment mechanism 34 includes two grooves 35 provided on the tilting table 6. A bidirectional screw 36 is rotatably installed through between the two grooves 35. Two threaded blocks 37 are sleeved on the external thread of the bidirectional screw 36. It should be noted that both threaded blocks 37 are provided with threaded holes matching the bidirectional screw 36, and the threads in the two threaded holes have opposite rotation directions. The two threaded blocks 37 are respectively slidably connected to the inner walls of the two grooves 35. An alignment plate 38 is slidably installed at the upper end of the tilting table 6. The alignment plate 38 is fixedly installed with the threaded block 37. A driving cavity 39 is provided in the tilting table 6. The bidirectional screw 36 penetrates through the driving cavity 39. An alignment motor 40 is installed in the driving cavity 39. A driving shaft of the alignment motor 40 is coaxially installed with a driving wheel 41. A driven wheel 42 meshing with the driving wheel 41 is coaxially installed on the bidirectional screw 36.

[0042] Through the above technical features: when the drone is parked on the landing platform, the alignment motor 40 drives the bidirectional screw 36 to rotate. The bidirectional screw 36 drives the threaded block 37 to move. The threaded block 37 drives the two alignment plates 38 to move relatively. The alignment plates 38 push the drone to move, and the drone can be pushed to a preset position, so that the drone can be accurately parked at the preset position, and the positioning and parking of the drone are accurate.

[0043] Working principle:

[0044] 1) Adjust the direction and tilt angle of the tilt table 6: When there is wind in the external environment, the wind blows the fan 50 to rotate. Under the action of the counterweight 49, the fan 50 drives the support column 48 to rotate, so that the fan 50 faces the direction of the wind. At this time, a certain angle is formed between the support column 48 and the cabinet body 1. At this time, the cabinet body 1 is driven to rotate by the electric motor until the support column 48 returns to the initial position. The wind speed sensor monitors the wind force, and then the drive shaft of the tilt motor 8 drives the tilt gear 9 to rotate, and the tilt gear 9 drives the tilt table 6 to rotate until it reaches the appropriate position;

[0045] 2) UAV landing and parking: When the UAV hovers above the tilt table 6, the drive motor 16 drives the two drive screws 13 to rotate. The two drive screws 13 drive the vertical plate 14 to move up and down, and the vertical plate 14 drives the U-shaped plate 15 to move up and down until the support component of the UAV enters the U-shaped plate 15. At this time, the support component of the UAV presses the buffer plate 23. When the pressure reaches the predetermined value, the power supply of the UAV is cut off. At this time, the support component of the UAV pushes the buffer plate 23, and the buffer plate 23 drives the rotating shaft 27 to rotate through the drive gear 33. The rotating shaft 27 drives the rotating lead screw 28 to rotate, and the rotating lead screw 28 drives the limit plate 26 to move. The limit plate 26 limits and fixes the support component of the UAV. Then the U-shaped plate 15 falls back until the support component of the UAV is placed in the L-shaped plate 19. At this time, under the pressure of the support component of the UAV, the L-shaped plate 19 rotates and wraps the support component of the UAV, thereby fixing the UAV. After the UAV is parked on the tilt table 6, the alignment motor 40 drives the bidirectional screw 36 to rotate. The bidirectional screw 36 drives the threaded block 37 to move, and the threaded block 37 drives the two alignment plates 38 to move relatively. The alignment plates 38 push the UAV to move, and the UAV can be pushed to the preset position.

[0046] It should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0047] The series of detailed descriptions listed above are only specific descriptions of the feasible implementation modes of this application, and they are not used to limit the protection scope of this application. Any equivalent implementation modes or changes made without departing from the technical spirit of this application should be included in the protection scope of this invention.

Claims

1. An unmanned aerial vehicle measurement and positioning device, characterized in that: The invention comprises a cabinet (1), a turntable (2) is rotatably mounted on the lower end of the cabinet (1), a lifting platform (4) is slidably mounted in the cabinet (1), a lifting mechanism (5) for lifting the lifting platform (4) is provided in the cabinet (1), a tilting platform (6) is rotatably mounted in the lifting platform (4), a tilting mechanism (3) for tilting the tilting platform (6) is provided on the cabinet (1), and a stabilizing mechanism (10) for receiving a drone and an alignment mechanism (34) for aligning the drone are provided on the tilting platform (6); The lifting mechanism (5) includes two lifting slots (53) arranged in the cabinet (1), a lifting screw (51) is rotatably installed in the lifting slot (53), a lifting block (47) is provided on the external thread sleeve of the lifting screw (51), and the lifting block (47) is fixedly installed with the lifting platform (4), a transmission cavity (43) is provided in the cabinet (1), the lower ends of the two lifting screws (51) are rotated to pass through the cabinet (1) and extend to be arranged in the transmission cavity (43), the two lifting screws (51) are connected by a third transmission mechanism (44), a lifting motor (45) is installed in the transmission cavity (43), and the driving shaft of the lifting motor (45) is coaxially installed with the lifting screw (51).

2. The drone measurement and positioning device according to claim 1, characterized in that: The third transmission mechanism (44) includes two fourth pulleys (46), the two fourth pulleys (46) are coaxially mounted with the two lifting screws (51), the two fourth pulleys (46) are connected via a synchronous belt transmission, and a limiting bracket for preventing the synchronous belt from falling off is provided in the transmission cavity (43).

3. The UAV measurement and positioning device according to claim 1, characterized in that: The tilting mechanism (3) includes a support column (48) rotatably mounted on the upper end of the cabinet (1), a fan (50) is mounted on the support column (48), a counterweight (49) is mounted on the side of the support column (48) away from the fan (50), a wind direction sensor and a wind speed sensor are mounted on the counterweight (49), a tilting slot (7) is provided in the lifting platform (4), a tilting motor (8) is mounted in the tilting slot (7), a tilting gear (9) is coaxially mounted on the driving shaft of the tilting motor (8), a tooth groove matching the tilting gear (9) is provided on the tilting platform (6), and the wind speed sensor is electrically connected to the tilting motor (8).

4. The drone measurement and positioning device according to claim 3, characterized in that: The stabilizing mechanism (10) comprises two T-slots (11) provided on the tilting platform (6), a driving screw (13) being rotatably installed in the T-slot (11), the upper end of the driving screw (13) being threadedly connected to a vertical plate (14), the upper end of the vertical plate (14) being installed with a U-shaped plate (15), two cavities (12) being provided in the tilting platform (6), the lower ends of the two driving screws (13) being rotatably passed through the tilting platform (6) and extending into the two cavities (12) respectively. The two driving screws (13) are connected to each other through a first transmission mechanism (17), a driving motor (16) is installed in one of the cavities (12), a driving shaft of the driving motor (16) is coaxially installed with the driving screw (13), two L-shaped plates (19) are provided on both sides of the U-shaped plate (15), the two L-shaped plates (19) are rotatably installed with the tilting platform (6) through a rotating rod (21), and a pressing plate (20) is installed in the L-shaped plate (19).

5. An unmanned aerial vehicle measurement and positioning device according to claim 4, characterized in that: The first transmission mechanism (17) includes two first pulleys (18), the two first pulleys (18) are coaxially mounted with the two driving screws (13), the two first pulleys (18) are connected via a synchronous belt transmission, and a through hole matching the synchronous belt is provided through the tilting platform (6).

6. The UAV measurement and positioning device according to claim 4, wherein: The inner bottom of the U-shaped plate (15) is provided with a buffer groove (22), a buffer plate (23) is slidably installed in the buffer groove (22), a plurality of buffer springs (24) are installed between the buffer plate (23) and the inner bottom of the buffer groove (22), a driving groove (32) is provided at the lower end of the buffer plate (23), a rotating shaft (27) is provided in the driving groove (32), a driving gear (33) is installed outside the rotating shaft (27), a tooth groove meshing with the driving gear (33) is provided in the driving groove (32), and the U-shaped plate (15) is provided with a plurality of buffer springs (24) between the buffer plate (23) and the inner bottom of the buffer groove (22). 5) are provided with a limit groove (25) on the inner side of both arms, a limit plate (26) is slidably installed in the limit groove (25), a rotating screw (28) is rotatably installed in the limit groove (25), the rotating screw (28) is threadedly connected to the limit plate (26), a transmission groove (52) is provided in the limit groove (25), the rotation of the rotating shaft (27) passes through the U-shaped plate (15) and is rotatably connected to the inner wall of the transmission groove (52), and the rotating shaft (27) and the rotating screw (28) are transmission-connected via a second transmission mechanism (29).

7. An unmanned aerial vehicle measurement and positioning device according to claim 6, characterized in that: The second transmission mechanism (29) comprises a second pulley (30) and a third pulley (31), wherein the second pulley (30) is coaxially mounted with the rotating shaft (27), and the third pulley (31) is coaxially mounted with the rotating screw (28), and the second pulley (30) and the third pulley (31) are connected via a synchronous belt transmission.

8. The a drone measurement and positioning device according to claim 1, characterized in that: The alignment mechanism (34) includes two grooves (35) provided on the inclined table (6). A bidirectional screw (36) is rotatably installed through between the two grooves (35). Two threaded blocks (37) are sleeved on the external thread of the bidirectional screw (36). The two threaded blocks (37) are respectively slidably connected to the inner walls of the two grooves (35). An alignment plate (38) is slidably installed at the upper end of the inclined table (6). The alignment plate (38) is fixedly installed with the threaded block (37). A drive cavity (39) is provided in the inclined table (6). The bidirectional screw (36) penetrates through the drive cavity (39). An alignment motor (40) is installed in the drive cavity (39). A driving wheel (41) is coaxially installed on the drive shaft of the alignment motor (40). A driven wheel (42) meshing with the driving wheel (41) is coaxially installed on the bidirectional screw (36).

9. The drone measurement and positioning device according to claim 8, wherein: Threaded holes matching the bidirectional screw (36) are provided on both of the two threaded blocks (37), and the thread directions in the two threaded holes are opposite.

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