A device for correcting the heading angle of a drone

Abstract

The utility model relates to unmanned aerial vehicle heading angle correction technical field discloses an unmanned aerial vehicle heading angle correction device, including bottom support subassembly, bottom support subassembly includes support platform and sets up in the multiple telescopic support spare of support platform bottom, is provided with the rotary connecting portion of being suitable for placing unmanned aerial vehicle on support platform, detects and adjusts the component, detects and adjusts the component to set up on bottom support subassembly, detects and adjusts the component is suitable for detecting the inclination state of support platform and controls telescopic support spare to carry out the telescopic to drive support platform automatic leveling, the utility model cooperates through the multiple telescopic support spare of bottom support subassembly and detects and adjusts the component, and detects and adjusts the component can automatically detect the inclination state of support platform and control telescopic support spare telescopic, need not manual level ground or manual leveling to effectively solve the problem that the heading angle correction under the complex terrain under the field, mountain area etc. is difficult to implement, satisfies the requirement of special task to the terrain adaptability and the concealment.

Description

Technical Field

[0001] This utility model relates to the field of UAV heading angle correction technology, specifically to a UAV heading angle correction device. Background Technology

[0002] The accuracy of an unmanned aerial vehicle's (UAV) inertial navigation system depends on the accuracy of its heading angle. Before transferring to unfamiliar areas for missions, the UAV's heading angle must be corrected (i.e., compass error correction) to eliminate errors caused by changes in the geomagnetic field. Current operations typically require placing the UAV on a dedicated support frame on relatively flat ground away from magnetic fields, where an operator pushes it to rotate a specific angle (e.g., 45°) and records data multiple times. This process has strict requirements for the flatness of the work site and is time-consuming and labor-intensive, becoming a key factor restricting the rapid response and covert deployment of UAVs.

[0003] Existing heading angle correction methods and support equipment have significant limitations. First, they heavily rely on manually finding and leveling a flat surface, making them difficult to implement in field training or complex terrains such as mountains and hills, and failing to meet the requirements of special missions for concealment and terrain adaptability. Second, during operation, the support frame cannot maintain a stable horizontal position on uneven ground, resulting in unsmooth drone rotation and inaccurate angle positioning, often requiring repeated operations and leading to low efficiency. Utility Model Content

[0004] This invention provides a drone heading angle correction device to solve the problems of existing drone heading angle correction relying on flat ground and manual operation, which is difficult to implement in complex terrain such as the field, and is time-consuming, labor-intensive, inaccurate angle positioning, and low efficiency.

[0005] This utility model provides a heading angle correction device for unmanned aerial vehicles (UAVs), comprising: A bottom support assembly, comprising a support platform and a plurality of telescopic support members disposed at the bottom of the support platform, wherein the support platform is provided with a rotating connecting part suitable for placing a drone; A leveling detection component is provided on the bottom support component. The leveling detection component is adapted to detect the tilt state of the support platform and control the telescopic support to extend and retract, so as to drive the support platform to automatically level itself.

[0006] Optionally, the detection leveling component includes: A dual-axis tilt sensor is disposed on the support platform, and the dual-axis tilt sensor is adapted to detect the tilt angle of the support platform relative to the horizontal plane; The controller is mounted on the support platform and is electrically connected to the dual-axis tilt sensor; An electro-hydraulic proportional multi-way directional valve is electrically connected to the controller and controls the connection to the telescopic support. The controller is adapted to receive the electrical signal from the dual-axis tilt sensor and dynamically adjust the extension length of each telescopic support by controlling the electro-hydraulic proportional multi-way directional valve until the support platform reaches a horizontal state.

[0007] Optionally, the rotating connection includes a rotating assembly disposed on the support platform, the rotating assembly being adapted to carry the UAV and rotate it horizontally relative to the support platform.

[0008] Optionally, the rotating assembly includes: An upper cover and a lower cover, wherein the lower cover is detachably mounted on the support platform and the upper cover is rotatably mounted on the lower cover; A bearing assembly is disposed between the upper cover and the lower cover to support the upper cover and allow it to rotate relative to the lower cover. An angle positioning mechanism includes a corner marker elastically disposed on the outer periphery of the upper cover and a plurality of corner marker holes evenly distributed circumferentially on the outer periphery of the lower cover; when the upper cover rotates relative to the lower cover, the corner marker slides on the surface of the lower cover, and when rotated to a predetermined angle, it partially engages with the corresponding corner marker hole under the action of elasticity to provide positioning tactile and auditory cues.

[0009] Optionally, the bearing assembly includes a deep groove ball bearing located in the central region and a double-direction thrust ball bearing located in the outer peripheral region.

[0010] Optionally, a plurality of the corner marking holes are spaced apart circumferentially along the lower cover.

[0011] Optionally, it also includes a support bracket, which is detachably mounted on the rotating assembly and is adapted to hold the drone.

[0012] Optionally, the support frame includes a base, a front support frame, and a rear support frame. The front support frame and the rear support frame are respectively connected to the base through a hinge mechanism, so that they can switch between an unfolded working position perpendicular to the base and a folded storage position parallel to the base.

[0013] Optionally, the base is further provided with an auxiliary connecting rod, and the two ends of the auxiliary connecting rod are provided with locking parts suitable for detachable connection with the front support frame and the rear support frame. When the support frame is in the unfolded working position, the auxiliary connecting rod is locked and connected to the front support frame and the rear support frame respectively.

[0014] Optionally, the base is provided with a positioning pin hole that mates with the rotating component, and also includes a positioning pin, which is adapted to be inserted into the positioning pin hole to achieve quick fixation of the support frame and the rotating component.

[0015] Beneficial effects: The UAV heading angle correction device provided by this utility model includes: a bottom support assembly, the bottom support assembly including a support platform and a plurality of telescopic support members disposed at the bottom of the support platform, the support platform being provided with a rotating connection part suitable for placing the UAV; and a detection and leveling assembly disposed on the bottom support assembly, the detection and leveling assembly being adapted to detect the tilt state of the support platform and control the telescopic support members to extend and retract, so as to drive the support platform to automatically level.

[0016] The UAV heading angle correction device provided by this utility model uses multiple telescopic support components of the bottom support assembly in conjunction with a detection and leveling assembly. The detection and leveling assembly can automatically detect the tilt state of the support platform and control the extension and retraction of the telescopic support components, eliminating the need for manual search for a flat site or manual leveling. This effectively solves the problem of difficulty in implementing heading angle correction in complex terrains such as the field and mountains, meeting the requirements of terrain adaptability and concealment for special missions. At the same time, the support platform can maintain a stable level through automatic leveling, and the rotating connection part on it allows the UAV to rotate more smoothly, avoiding inaccurate angle positioning caused by unstable support frame, reducing repeated operations, lowering labor and time costs, and improving heading angle correction efficiency. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram illustrating the use of a UAV heading angle correction device according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of a UAV heading angle correction device according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the support and fixing frame according to an embodiment of the present utility model; Figure 4 This is a schematic diagram of the bottom support component according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the rotating assembly according to an embodiment of the present invention; Figure 6 This is a schematic diagram of the structure of the lower cover according to an embodiment of the present utility model; Figure 7 This is a schematic diagram of the structure of the top cover according to an embodiment of the present utility model.

[0019] Explanation of reference numerals in the attached figures: 1. Bottom support assembly; 11. Support platform; 12. Telescopic support component; 2. Detection and leveling assembly; 21. Dual-axis tilt sensor; 22. Controller; 3. Rotation assembly; 31. Top cover; 32. Bottom cover; 33. Bearing assembly; 331. Deep groove ball bearing; 332. Bidirectional thrust ball bearing; 341. Corner marker; 342. Corner marker hole; 4. Support fixing frame; 41. Base; 42. Front support frame; 43. Rear support frame; 44. Auxiliary connecting rod; 45. Positioning pin hole; 46. Positioning pin; 5. UAV. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0021] The following is combined Figures 1 to 7 The following describes embodiments of the present invention.

[0022] According to an embodiment of the present invention, a UAV heading angle correction device is provided, comprising: Bottom support assembly 1 includes a support platform 11 and a plurality of telescopic support members 12 disposed at the bottom of the support platform 11. The support platform 11 is provided with a rotating connecting part suitable for placing the drone 5. The detection and leveling component 2 is installed on the bottom support component 1. The detection and leveling component 2 is adapted to detect the tilt state of the support platform 11 and control the telescopic support component 12 to extend and retract, so as to drive the support platform 11 to automatically level.

[0023] Specifically, in this embodiment, the telescopic support 12 is a hydraulic telescopic support 12. The hydraulic telescopic support 12 has good load-bearing capacity and can stably support the fuselage of UAV 5 of different weight specifications, avoiding secondary tilting of the platform after leveling due to insufficient support load, and adapting to the heading angle correction requirements of multiple models of UAV 5; the adjustment characteristics of hydraulic drive are highly matched with the control logic of electro-hydraulic proportional multi-way reversing valve, which can realize micro-precise control of telescopic length. With the real-time angle feedback of dual-axis tilt sensor 21, it can quickly compensate for the tilt deviation of support platform 11 in complex terrain (such as mountain slopes and soft ground).

[0024] The heading angle correction device for UAV 5 provided in this embodiment works in conjunction with multiple telescopic support members 12 of the bottom support component 1 and the detection and leveling component 2. The detection and leveling component 2 can automatically detect the tilt state of the support platform 11 and control the telescopic support members 12 to extend and retract. There is no need to manually find a flat site or manually level it, which effectively solves the problem of difficulty in implementing heading angle correction in complex terrains such as the field and mountains, and meets the requirements of terrain adaptability and concealment for special missions. At the same time, the support platform 11 can maintain a stable level through automatic leveling, and the rotating connection part on it can make the UAV 5 rotate more smoothly, avoid inaccurate angle positioning caused by unstable support frame, reduce repeated operations, reduce labor and time costs, and improve heading angle correction efficiency.

[0025] Furthermore, the detection leveling component 2 includes: A dual-axis tilt sensor 21 is mounted on the support platform 11. The dual-axis tilt sensor 21 is adapted to detect the tilt angle of the support platform 11 relative to the horizontal plane. The controller 22 is mounted on the support platform 11 and is electrically connected to the dual-axis tilt sensor 21; An electro-hydraulic proportional multi-way directional valve is electrically connected to the controller 22 and controls the connection to the telescopic support 12. The controller 22 is adapted to receive the electrical signal from the dual-axis tilt sensor 21 and dynamically adjust the extension length of each telescopic support 12 by controlling the electro-hydraulic proportional multi-way directional valve until the support platform 11 reaches a horizontal state.

[0026] Specifically, in actual use, the bottom support assembly 1 is first placed on the target correction site. At this time, the dual-axis tilt sensor 21 detects the tilt angle of the support platform 11 relative to the horizontal plane in real time and converts the detected angle signal into an electrical signal and transmits it to the controller 22 on the same support platform 11. After receiving the electrical signal, the controller 22 analyzes the tilt direction and degree of the support platform 11 through the built-in algorithm, generates the corresponding control command and sends it to the electro-hydraulic proportional multi-way directional valve. According to the command, the electro-hydraulic proportional multi-way directional valve controls the on / off of the oil circuit and the flow rate connected to each telescopic support 12, drives the telescopic support 12 corresponding to the tilt direction to extend or shorten, until the dual-axis tilt sensor 21 detects that the tilt angle of the support platform 11 is 0° (i.e., it reaches the horizontal state). The controller 22 then stops sending control commands and completes automatic leveling.

[0027] Specifically, in this embodiment, the telescopic support 12 adopts a hydraulic telescopic support assembly, which is connected to the controller 22 by an oil circuit. The oil circuit is concealed in the pipes inside the bottom support assembly 1, and the electro-hydraulic proportional multi-way directional valve is installed in each oil circuit. The electro-hydraulic proportional multi-way directional valve is electrically connected to the controller 22 through a circuit to realize the controller 22's control over each telescopic support 12.

[0028] In an optional embodiment, the dual-axis tilt sensor 21 can be replaced with a more accurate three-axis tilt sensor to more comprehensively detect the attitude deviation of the support platform 11 in space; the controller 22 can be a PLC controller 22 with data storage and remote communication functions, which facilitates the recording of leveling data and supports remote monitoring of the leveling process; in terms of the driving method, the combination of electro-hydraulic proportional multi-way reversing valve and hydraulic telescopic support 12 can be replaced with a combination of electric push rod and relay control module, and the extension and retraction of the electric push rod can be directly controlled by the controller 22. This is suitable for UAV 5 heading angle correction scenarios with low leveling speed requirements and small load, and can also realize automatic leveling function.

[0029] In a straightforward manner, the detection and leveling component 2 captures the tilt angle of the support platform 11 through the dual-axis tilt sensor 21. Combined with the controller 22 and the electro-hydraulic proportional multi-way directional valve, it forms a closed-loop control that can dynamically and automatically adjust the length of each telescopic support component 12 without the need for manual judgment and operation for leveling. This solves the problems of low efficiency and poor accuracy of manual leveling and ensures that the support platform 11 always remains stable and horizontal, providing a horizontal foundation for the smooth rotation of the UAV 5. This further improves the adaptability of the device in complex terrain and the stability of correction operations.

[0030] Furthermore, the rotating connection includes a rotating assembly 3, which is disposed on the support platform 11 and is adapted to carry the UAV 5 and rotate it horizontally relative to the support platform 11.

[0031] In a straightforward manner, the rotating component 3 of the rotating connection can support the UAV 5 and enable it to rotate smoothly horizontally relative to the support platform 11 after the support platform 11 has completed automatic leveling. This effectively solves the problem of the UAV 5 getting stuck and obstructed due to unevenness in the existing support frame. At the same time, the rotating component 3 can achieve precise rotation control in accordance with angle positioning requirements (such as preset 45° intervals), avoiding angle deviations when manually pushing, reducing repeated operations caused by inaccurate positioning, and improving the efficiency and accuracy of angle adjustment during heading angle correction. In addition, there is no need to manually push the UAV 5 to rotate, reducing the intensity of operation and making the correction process more automated.

[0032] Furthermore, the rotating assembly 3 includes: The upper cover 31 and the lower cover 32 are provided. The lower cover 32 is detachably mounted on the support platform 11, and the upper cover 31 is rotatably mounted on the lower cover 32. Bearing assembly 33 is disposed between upper cover 31 and lower cover 32, and is used to support upper cover 31 and allow it to rotate relative to lower cover 32; The angle positioning mechanism includes a corner marker 341 elastically disposed on the outer periphery of the upper cover 31 and a plurality of corner marker holes 342 evenly distributed on the outer periphery of the lower cover 32. When the upper cover 31 rotates relative to the lower cover 32, the corner marker 341 slides on the surface of the lower cover 32, and when rotated to a predetermined angle, it partially engages with the corresponding corner marker hole 342 under the action of elasticity to provide positioning tactile and auditory cues.

[0033] Specifically, in this embodiment, in order to improve the rotation component 3 from interfering with other components during rotation, both the upper cover 31 and the lower cover 32 are circular. Of course, in other embodiments, the upper cover 31 and the lower cover 32 can be set to other shapes, such as ellipse or rectangle.

[0034] Specifically, in actual use, the lower cover 32 is fixed to the leveled support platform 11 by bolts or other detachable structures, and the upper cover 31 is mounted on the lower cover 32 by bearing assembly 33, forming a stable rotation support structure. The drone 5 is mounted on the upper cover 31. When it is necessary to adjust the heading angle of the drone 5, the operator pushes the upper cover 31, and the bearing assembly 33 converts sliding friction into rolling friction, so that the upper cover 31 drives the drone 5 to rotate smoothly. At this time, the elastic corner marker 341 (such as a steel ball with a spring) on ​​the outer periphery of the upper cover 31 slides close to the surface of the lower cover 32. When the corner marker holes 342 (preset at intervals according to the correction requirements, such as one every 45°) on the outer periphery of the lower cover 32 rotate to the position of the marker, the marker is partially inserted into the hole under the action of the spring force, producing a slight vibration tactile sensation (i.e., positioning tactile sensation) and a "click" sound, indicating that the predetermined angle has been reached. The operator can then stop rotating and record the data to complete one angle positioning.

[0035] In this embodiment, a countersunk hole is provided on the contact surface of the upper cover 31 relative to the lower cover 32, and the corner marker 341 is disposed in the countersunk hole by an elastic element. Specifically, in this embodiment, the corner marker 341 adopts a spherical metal structure, and the elastic element is a spring; of course, in an optional embodiment, the corner marker 341 may also be made of soft rubber, but it can only provide tactile feedback.

[0036] In an alternative embodiment, bearing assembly 33 can be replaced with a sliding bearing, which is suitable for low-load scenarios and is less expensive.

[0037] In a straightforward manner, the rotating assembly 3, through the cooperation of the upper cover 31 and the lower cover 32 and the support of the bearing assembly 33, reduces the frictional resistance of the UAV 5 during rotation, ensuring smooth and uninterrupted rotation and solving the problem of the UAV 5 being obstructed due to the instability of the existing support frame. The angle positioning mechanism utilizes the elastic angle marker 341 in cooperation with the circumferentially distributed angle marker holes 342 to provide clear tactile and audible cues through a snap-fit ​​action when rotating to the predetermined angle, eliminating the need for repeated manual angle calibration. This avoids positioning errors caused by manual pushing, simplifies the operation process, and improves the accuracy and efficiency of angle adjustment when correcting the heading angle. At the same time, the detachable design of the lower cover 32 facilitates the maintenance and replacement of components such as the bearing assembly 33 and the positioning mechanism in the future, extending the service life of the device.

[0038] Furthermore, the bearing assembly 33 includes a deep groove ball bearing 331 located in the central region and a double-direction thrust ball bearing 332 located in the outer peripheral region.

[0039] In a straightforward manner, the bearing assembly 33 employs a combination design of a central deep groove ball bearing 331 and an outer peripheral double-direction thrust ball bearing 332, which enables precise load distribution and efficient load bearing: the central deep groove ball bearing 331 can stably withstand the radial load generated during the rotation of the UAV 5, preventing radial displacement of the upper cover 31 and ensuring rotational concentricity; the outer peripheral double-direction thrust ball bearing 332 is specifically designed to bear the axial load brought about by the weight of the UAV 5 itself, while resisting the bidirectional axial impact force that may be generated during rotation, preventing the upper cover 31 from moving up and down or tilting, and ensuring support stability.

[0040] Furthermore, multiple corner marking holes 342 are spaced apart circumferentially along the lower cover 32.

[0041] Specifically, in this embodiment, one corner marker hole 342 is provided every 45° around the lower circumference. Of course, in other embodiments, more corner marker holes 342 can be provided, such as 22.5° or 10°, depending on the actual situation.

[0042] Furthermore, it also includes a support frame 4, which is detachably mounted on the rotating assembly 3 and is suitable for placing the drone 5.

[0043] In an easy-to-understand way, the design of the support bracket 4, which is detachable and adaptable to the placement of the drone 5, can match the body size of multiple models of drone 5 by replacing the bracket with different specifications, thus solving the limitation that a single fixing structure can only be adapted to a specific drone 5 and improving the versatility of the device; it can stably fix the body of the drone 5 and prevent displacement or shaking when the rotating component 3 drives the drone 5 to rotate, ensuring that the attitude of the drone 5 remains stable during the heading angle correction process.

[0044] Furthermore, the support frame 4 includes a base 41, a front support frame 42, and a rear support frame 43. The front support frame 42 and the rear support frame 43 are connected to the base 41 through a hinge mechanism, so that they can switch between an unfolded working position perpendicular to the base 41 and a folded storage position parallel to the base 41.

[0045] Specifically, the support frame 4 is used to directly place the drone 5. In order to ensure the detection stability of the dual-axis tilt sensor 21, in this embodiment, the dual-axis tilt sensor 21 is fixedly mounted on the base 41.

[0046] In simple terms, the support frame 4, through the base 41 and the hinged front support frame 42 and rear support frame 43, can switch between folding and unfolding with the help of the hinge mechanism. When folded, the front and rear support frames can be flat against the base 41, reducing the overall volume and making it easy to disassemble and store in a backpack or transport box during field operations, solving the problem of traditional frames being bulky and inconvenient to carry. When unfolded to the working position, the front and rear support frames are perpendicular to the base 41 to form a stable three-point support structure. The distance between the two can be adjusted according to the length of the drone 5, adapting to the support needs of drones 5 of different sizes and preventing the drone from tilting or slipping.

[0047] Specifically, the base 41 of the support frame 4 is a rectangular flat plate structure, serving as the load-bearing foundation for the entire frame. Its top surface has pre-drilled connection holes for bolt fixing with the upper cover 31 of the rotating component 3, and an anti-slip pad can be attached to the bottom surface to enhance placement stability. The front support frame 42 and the rear support frame 43 are both U-shaped or rod-shaped structures, corresponding to the head and mid-tail support positions of the UAV 5 fuselage, respectively. Both bottom ends of these frames are detachably connected to the front and rear edges of the base 41 via hinge mechanisms (such as hinged hinge seats). The mechanism has a built-in limiting component (such as a spring positioning pin 46). When the front support frame 42 and the rear support frame 43 rotate upward around the hinge axis to a working position perpendicular to the base 41, the positioning pin 46 automatically pops out and engages with the limiting hole of the hinge seat, locking the support frame posture. When it needs to be stored, press the positioning pin 46 to release the lock and rotate the support frame downward to a storage position parallel to the top surface of the base 41. At this time, the front and rear support frames are completely in contact with the base 41, and the overall thickness is only the sum of the thickness of the base 41 and the support frame plates, which is convenient for stacking or packing for transportation.

[0048] Furthermore, an auxiliary connecting rod 44 is also provided on the base 41. The two ends of the auxiliary connecting rod 44 are provided with locking parts suitable for detachable connection with the front support frame 42 and the rear support frame 43. When the support frame 4 is in the unfolded working position, the auxiliary connecting rod 44 is locked and connected to the front support frame 42 and the rear support frame 43 respectively.

[0049] In an easy-to-understand manner, when the support frame 4 is in the unfolded working position, the auxiliary connecting rod 44 is detachably connected to the front support frame 42 and the rear support frame 43 respectively through the locking parts at both ends. Together with the base 41 and the front and rear support frames, it can form a stable triangular support structure, which greatly enhances the overall anti-tilt and anti-deformation ability of the support frame. This prevents the support frame from tilting or shaking due to the weight of the drone 5 itself or slight vibrations in the field, ensuring that the drone 5 is always in a stable support state, providing a reliable foundation for the subsequent rotating component 3 to drive the drone 5 to rotate accurately. At the same time, the detachable design of the auxiliary connecting rod 44 does not affect the folding and storage function of the support frame 4. It can be quickly disassembled when storage is needed without increasing the overall volume, thus balancing the structural stability during operation and the portability during transportation.

[0050] Furthermore, the base 41 is provided with a positioning pin hole 45 that cooperates with the rotating component 3, and also includes a positioning pin 46, which is adapted to be inserted into the positioning pin hole 45 to achieve quick fixation of the support frame 4 and the rotating component 3.

[0051] Intuitively, the positioning pin hole 45 on the base 41 cooperates with the positioning pin 46 to enable quick assembly and disassembly of the support frame 4 and the rotating component 3: during installation, simply insert the positioning pin 46 into the corresponding pin hole to complete the precise positioning and fixation of both without the need for tools such as wrenches, which greatly shortens the setup time of the support frame 4 and is especially suitable for rapid deployment in the field; at the same time, the small gap between the pin hole and the positioning pin 46 can prevent the support frame 4 from sliding laterally or rotating off the rotating component 3, ensuring the concentricity of the UAV 5 when rotating with the rotating component 3, and providing a stable foundation for the precise triggering of the angle positioning mechanism.

[0052] In an alternative embodiment, the combination of the positioning pin 46 and the pin hole is replaced with a snap-fit ​​connection. An elastic hook is provided at the bottom of the base 41, and a slot is provided at the corresponding position on the upper cover 31 of the rotating component 3. The hook is pressed to lock into the slot for fixation. The hook can be pulled apart during disassembly, making the operation easier.

[0053] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A heading angle correction device for unmanned aerial vehicles (UAVs), characterized in that, include: Bottom support assembly (1), the bottom support assembly (1) includes a support platform (11) and a plurality of telescopic support members (12) disposed at the bottom of the support platform (11), the support platform (11) is provided with a rotating connection part suitable for placing a drone (5); The detection and leveling component (2) is disposed on the bottom support component (1). The detection and leveling component (2) is adapted to detect the tilt state of the support platform (11) and control the telescopic support component (12) to extend and retract, so as to drive the support platform (11) to automatically level.

2. The UAV heading angle correction device according to claim 1, characterized in that, The detection leveling component (2) includes: A dual-axis tilt sensor (21) is disposed on the support platform (11), and the dual-axis tilt sensor (21) is adapted to detect the tilt angle of the support platform (11) relative to the horizontal plane; The controller (22) is mounted on the support platform (11) and is electrically connected to the dual-axis tilt sensor (21); An electro-hydraulic proportional multi-way directional valve is electrically connected to the controller (22) and controls the connection to the telescopic support (12). The controller (22) is adapted to receive the electrical signal from the dual-axis tilt sensor (21) and dynamically adjust the extension length of each of the telescopic support members (12) by controlling the electro-hydraulic proportional multi-way reversing valve until the support platform (11) reaches a horizontal state.

3. A UAV heading angle correction device according to claim 1 or 2, characterized in that, The rotating connection includes a rotating assembly (3) which is disposed on the support platform (11). The rotating assembly (3) is adapted to carry the UAV (5) and rotate it horizontally relative to the support platform (11).

4. The UAV heading angle correction device according to claim 3, characterized in that, The rotating assembly (3) includes: The upper cover (31) and the lower cover (32) are detachably mounted on the support platform (11), and the upper cover (31) is rotatably mounted on the lower cover (32). A bearing assembly (33) is disposed between the upper cover (31) and the lower cover (32) for supporting the upper cover (31) and allowing it to rotate relative to the lower cover (32); The angle positioning mechanism includes a corner marker (341) elastically disposed on the outer periphery of the upper cover (31) and a plurality of corner marker holes (342) evenly distributed on the outer periphery of the lower cover (32). When the upper cover (31) rotates relative to the lower cover (32), the corner marker (341) slides on the surface of the lower cover (32) and, when rotated to a predetermined angle, partially engages with the corresponding corner marker hole (342) under the action of elasticity to provide positioning tactile and auditory cues.

5. The UAV heading angle correction device according to claim 4, characterized in that, The bearing assembly (33) includes a deep groove ball bearing (331) located in the central region and a double-direction thrust ball bearing (332) located in the outer peripheral region.

6. The UAV heading angle correction device according to claim 4, characterized in that, The plurality of corner marking holes (342) are arranged at circumferential intervals along the lower cover (32).

7. The UAV heading angle correction device according to claim 3, characterized in that, It also includes a support frame (4), which is detachably mounted on the rotating assembly (3) and is adapted to hold the drone (5).

8. A UAV heading angle correction device according to claim 7, characterized in that, The support frame (4) includes a base (41), a front support frame (42) and a rear support frame (43). The front support frame (42) and the rear support frame (43) are connected to the base (41) through a hinge mechanism, so that they can switch between an unfolded working position perpendicular to the base (41) and a folded storage position parallel to the base (41).

9. A UAV heading angle correction device according to claim 8, characterized in that, The base (41) is also provided with an auxiliary connecting rod (44). Both ends of the auxiliary connecting rod (44) are provided with locking parts suitable for detachable connection with the front support frame (42) and the rear support frame (43). When the support fixing frame (4) is in the unfolded working position, the auxiliary connecting rod (44) is locked and connected to the front support frame (42) and the rear support frame (43) respectively.

10. A UAV heading angle correction device according to claim 8, characterized in that, The base (41) is provided with a positioning pin hole (45) that cooperates with the rotating component (3), and also includes a positioning pin (46). The positioning pin (46) is adapted to be inserted into the positioning pin hole (45) to realize the quick fixation of the support frame (4) and the rotating component (3).

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