Modularized small unmanned aerial vehicle autopilot
By using modular design and shock absorption mechanisms, the limitations of the drone autopilot's applicability and the impact of vibration were solved, enabling rapid module replacement and vibration compensation to meet mission requirements and improving flight stability.
Patent Information
- Application Number
- CN202422691015.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-05
- Publication Date
- 2026-03-03
- Estimated Expiration
- 2034-11-05
AI Technical Summary
Existing small drone autopilots have a fixed structure, cannot be modularly replaced, have limited applicability, and lack effective shock absorption mechanisms, causing vibrations during flight to affect internal precision components and impact flight attitude.
A modular autopilot was designed, which can be quickly replaced by independent main processing module, interface module and sensor data processing module, and adopts a damping cylinder and return spring structure to absorb vibration and achieve shock reduction.
It enables modular replacement based on mission requirements and effective vibration cancellation, thereby improving the applicability and flight stability of the autopilot.
Smart Images
Figure CN223966838U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of unmanned aerial vehicle (UAV) technology, specifically a modular small UAV autopilot. Background Technology
[0002] The autopilot of a drone drives the aircraft by mimicking the actions of a pilot. The autopilot is to a drone what a pilot does to a manned aircraft. The autopilot consists of sensitive elements, a computer and a servo mechanism. When the aircraft deviates from its original attitude, the sensitive elements detect the change, the computer calculates the corrective rudder deflection, and the servo mechanism manipulates the control surfaces to the required position.
[0003] Existing small drone autopilots have a relatively fixed structure, making it impossible to modularly replace the data processing and interface modules according to different mission types. They can only perform a single type of mission, resulting in insufficient applicability. Furthermore, existing small drone autopilots lack effective shock absorption mechanisms, making them susceptible to vibrations generated by the drone's components during flight. This can adversely affect the precision components inside the autopilot and impact the drone's flight attitude. Therefore, we propose a modular small drone autopilot. Utility Model Content
[0004] The purpose of this invention is to provide a modular small drone autopilot to solve the problems mentioned in the background art, such as the fixed structure of existing small drone autopilots, the inability to modularly replace data processing modules and interface modules according to different task types, the limited applicability of single-type tasks, and the lack of effective shock absorption mechanisms in existing small drone autopilots, which makes the autopilot susceptible to vibrations generated by the drone's components during flight, which can adversely affect the precision components inside the autopilot and affect the drone's flight attitude.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a modular small drone autopilot, including a shell and a mounting bracket, the mounting bracket being screwed onto the outer wall of the shell, a main processing module being fixedly connected to the middle of the bottom of the shell's inner cavity, circuit boards being fixedly connected to the front and rear sides of the bottom of the shell's inner cavity, connection interfaces being welded to the top of the front and rear circuit boards, an interface module being inserted between the inner walls of the front connection interface, a sensor data processing module being inserted between the inner walls of the rear connection interface, transmission lines being fixedly connected to the front and rear side walls of the main processing module, and the ends of the front and rear transmission lines being fixedly connected to the front and rear circuit boards.
[0006] As a further description of the above technical solution:
[0007] A top cover is screwed onto the top of the outer casing.
[0008] As a further description of the above technical solution:
[0009] Mounting plates are fixedly connected to the left and right side walls of the mounting bracket. Pressure rods are fixedly connected to the bottom of the left and right mounting plates, and the pressure rods on the left and right sides are arranged sequentially from front to back. Damping cylinders are slidably connected to the outer side walls of the pressure rods.
[0010] As a further description of the above technical solution:
[0011] The bottom end of the pressure rod is fixedly connected to a seepage plate, and the top of the seepage plate has seepage holes around the perimeter, which are evenly distributed.
[0012] As a further description of the above technical solution:
[0013] The damping cylinder has a reset spring embedded in its inner cavity, and the reset spring is located below the seepage plate.
[0014] As a further description of the above technical solution:
[0015] The inner cavity of the damping cylinder is filled with damping oil, and a base plate is fixedly connected to the bottom end of the damping cylinder.
[0016] Compared with the prior art, the beneficial effects of this utility model are:
[0017] 1. This modular small UAV autopilot, because the main processing module, interface module, and sensor data processing module are independent of each other, allows for quick replacement of the interface module and sensor data processing module when necessary to meet mission requirements. This is achieved by pulling the levers on top of the interface module and sensor data processing module to detach them from the connection interfaces on the circuit board. The required interface module and sensor data processing module are then installed into the connection interfaces on the circuit board, completing the replacement. During autopilot operation, data from the interface module and sensor data processing module is transmitted to the circuit board through the connection interfaces. Subsequently, the circuit boards on both sides transmit the data from the interface module and sensor data processing module to the main processing module via transmission lines for data processing. This allows for rapid replacement of modules that do not meet mission requirements.
[0018] 2. This modular small drone autopilot, when affected by vibration, receives and transmits the vibration through a damping cylinder via a base plate. The damping cylinder then moves vertically, causing a drainage plate on the pressure rod to compress the return spring and damping oil. This causes the return spring to deform and absorb the vibration. Simultaneously, the drainage plate compresses the damping oil, causing it to flow through drainage holes on the drainage plate to the other side. This process generates damping force to further buffer the vibration. After buffering, the return spring extends and resets, pushing the drainage plate to reset, and the pressure rod to reset. This effectively counteracts the vibration generated by the drone during operation. Attached Figure Description
[0019] Figure 1 This is a front-view stereoscopic structural diagram of a modular small drone autopilot proposed in this utility model;
[0020] Figure 2 This is a front sectional view of a modular small drone autopilot proposed in this utility model.
[0021] Figure 3 This is a schematic diagram of the exploded cross-sectional structure of a modular small drone autopilot proposed in this utility model.
[0022] Figure 4 This is a cross-sectional schematic diagram of a shock absorption mechanism for a modular small drone autopilot proposed in this utility model.
[0023] In the diagram: 100, outer casing; 110, main processing module; 120, circuit board; 121, connection interface; 130, interface module; 140, sensor data processing module; 150, transmission line; 160, top cover; 200, mounting bracket; 210, mounting plate; 220, pressure rod; 230, damping cylinder; 240, seepage plate; 241, seepage hole; 250, return spring; 260, damping oil; 270, base plate. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0025] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.
[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0027] This invention provides a modular, small-sized drone autopilot that allows for quick replacement of modules that do not meet mission requirements, and effectively counteracts vibrations generated by the drone during flight. Please refer to [link / reference]. Figure 1-4 It includes a housing 100 and a mounting bracket 200;
[0028] Please refer to it again. Figure 1-3The outer casing 100 is used to connect with the mounting bracket 200. A main processing module 110 is fixedly connected to the middle of the bottom of the inner cavity of the outer casing 100. The main processing module 110 processes data from the interface module 130 and the sensor data processing module 140, and performs navigation calculations and control logic functions. Circuit boards 120 are fixedly connected to the front and rear sides of the bottom of the inner cavity of the outer casing 100. Circuit boards 120 are used to mount connection interfaces 121. Connection interfaces 121 are soldered to the top of the front and rear circuit boards 120. Connection interfaces 121 are used to mount... Interface module 130 and sensor data processing module 140 are connected. Interface module 130 is inserted between the inner wall of front connection interface 121 and is used to connect to external cables. Sensor data processing module 140 is inserted between the inner wall of rear connection interface 121 and is used to process the data measured by the sensor to determine the aircraft attitude. Transmission lines 150 are fixedly connected to the front and rear side walls of main processing module 110. The ends of transmission lines 150 on both the front and rear sides are fixed to the front and rear circuit boards 120 on both sides. The top of the housing 100 is screwed with a top cover 160. Since the main processing module 110, interface module 130, and sensor data processing module 140 are independent of each other, when it is necessary to replace the interface module 130 and sensor data processing module 140 according to the task requirements, the interface module 130 and sensor data processing module 140 are removed from the connection interface 121 on the circuit board 120 by pulling the lever on the top of the interface module 130 and sensor data processing module 140. Then, the interface module 130 and sensor data processing module 140 required by the task are installed into the connection interface 121 on the circuit board 120 to complete the replacement of the interface module 130 and sensor data processing module 140. When the autopilot is working, the data of the interface module 130 and sensor data processing module 140 is transmitted to the circuit board 120 through the connection interface 121. Then, the two circuit boards 120 transmit the data of the interface module 130 and sensor data processing module 140 to the main processing module 110 for data processing through the transmission line 150.
[0029] In summary, modules that do not meet the task requirements can be quickly replaced according to the task requirements;
[0030] Please refer to it again. Figure 1-4The mounting bracket 200 is screwed onto the outer wall of the outer casing 100. Mounting plates 210 are fixedly connected to the left and right side walls of the mounting bracket 200. Mounting plates 210 are used to mount pressure rods 220. Pressure rods 220 are fixedly connected to the bottom of the left and right mounting plates 210. Pressure rods 220 are used to connect to damping cylinders 230, and the left and right pressure rods 220 are arranged sequentially from front to back. A damping cylinder 230 is slidably connected to the outer wall of the pressure rod 220. The damping cylinder 230 is used to mount the main structure. A seepage plate 240 is fixedly connected to the bottom end of the pressure rod 220. The seepage plate 240 is used to compress the return spring 250 and the damping oil 260. Seepage holes 241 are opened around the top of the seepage plate 240, allowing the damping oil 260 to flow to the other side of the seepage plate 240. The seepage holes 241 are evenly distributed. A return spring 250 is embedded in the inner cavity of the damping cylinder 230. Spring 250 is located below the seepage plate 240. The inner cavity of damping cylinder 230 is filled with damping oil 260. The bottom end of damping cylinder 230 is fixedly connected to base plate 270. When the autopilot is affected by vibration, the vibration is received and transmitted to damping cylinder 230 through base plate 270. Then, damping cylinder 230 moves vertically, causing seepage plate 240 on pressure rod 220 to squeeze return spring 250 and damping oil 260. This causes return spring 250 to deform and absorb and cancel the vibration. At the same time, after seepage plate 240 squeezes damping oil 260, damping oil 260 flows through seepage hole 241 on seepage plate 240 to the other side of seepage plate 240. In this process, damping force is generated to further buffer the vibration. After buffering is completed, return spring 250 extends and pushes seepage plate 240 to reset, causing pressure rod 220 to reset.
[0031] In summary, this method can effectively counteract the vibrations generated by the drone during flight.
[0032] In practical use, since the main processing module 110, interface module 130, and sensor data processing module 140 are independent of each other, when it is necessary to replace the interface module 130 and sensor data processing module 140 according to task requirements, the interface module 130 and sensor data processing module 140 are removed from the connection interface 121 on the circuit board 120 by pulling the lever on top of the interface module 130 and sensor data processing module 140. Then, the interface module 130 and sensor data processing module 140 required by the task are installed into the connection interface 121 on the circuit board 120, thus completing the replacement of the interface module 130 and sensor data processing module 140. When the autopilot is working, the data from the interface module 130 and sensor data processing module 140 is transmitted to the circuit board 120 through the connection interface 121. 0. Subsequently, the circuit boards 120 on both sides transmit the data from the interface module 130 and the sensor data processing module 140 to the main processing module 110 for data processing via the transmission line 150. When the autopilot is affected by vibration, the vibration is received and transmitted through the damping cylinder 230 via the base plate 270. Then, the damping cylinder 230 moves vertically, causing the seepage plate 240 on the pressure rod 220 to squeeze the return spring 250 and the damping oil 260. This causes the return spring 250 to deform and absorb and cancel the vibration. At the same time, after the seepage plate 240 squeezes the damping oil 260, the damping oil 260 flows through the seepage hole 241 on the seepage plate 240 to the other side of the seepage plate 240. In this process, a damping force is generated to further buffer the vibration. After buffering is completed, the return spring 250 extends and resets, pushing the seepage plate 240 to reset, and causing the pressure rod 220 to reset.
[0033] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0034] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.
Claims
1. A modular autopilot for small unmanned aerial vehicles, characterized in that: The application relates to a main processing module, which comprises a shell (100) and a mounting rack (200) screwed on the outer side wall of the shell (100), a main processing module (110) fixedly connected to the middle of the bottom of the inner cavity of the shell (100), circuit boards (120) fixedly connected to the front and rear sides of the bottom of the inner cavity of the shell (100), a connecting interface (121) welded to the top of the circuit boards (120), an interface module (130) inserted between the inner side walls of the front connecting interface (121), a sensor data processing module (140) inserted between the inner side walls of the rear connecting interface (121), a transmission line (150) fixedly connected to the front and rear side walls of the main processing module (110), and the ends of the transmission lines (150) fixedly connected to the circuit boards (120).
2. The modular autopilot for small unmanned aerial vehicles of claim 1, wherein: The top of the shell (100) is screwed with a top cover (160).
3. The modular autopilot for small unmanned aerial vehicles of claim 1, wherein: The left and right side walls of the mounting rack (200) are fixedly connected with mounting plates (210), the bottoms of the mounting plates (210) are fixedly connected with pressing rods (220), the pressing rods (220) are arranged from front to back, and the outer side walls of the pressing rods (220) are slidingly connected with damping cylinders (230).
4. The modular autopilot for small unmanned aerial vehicles of claim 3, wherein: The bottoms of the pressing rods (220) are fixedly connected with liquid-permeating plates (240), a liquid-permeating hole (241) is formed in the top of the liquid-permeating plate (240), and the liquid-permeating holes (241) are uniformly distributed.
5. The modular autopilot for small unmanned aerial vehicles of claim 4, wherein: The inner cavity of the damping cylinder (230) is embedded with a reset spring (250), and the reset spring (250) is located below the liquid-permeating plate (240).
6. The modular autopilot for small unmanned aerial vehicles of claim 5, wherein: The inner cavity of the damping cylinder (230) is filled with damping oil (260), and the bottom of the damping cylinder (230) is fixedly connected with a bottom plate (270).