A device for low altitude drone capture

Abstract

This invention discloses a device for capturing low-altitude unmanned aerial vehicles (UAVs), belonging to the field of UAV countermeasure technology. It includes a gripper and a recovery base. The gripper includes a base plate with a small motor mount and a blade mounting block at its upper end. The blade mounting block has a blade assembly and a camera mounting block with a miniature camera. The small motor mount has a stepper motor connected to an inner rotating shaft, which in turn is connected to a capture claw. The capture claw is a quarter-sphere shell with one corner cut off at each end. This invention uses the aforementioned device for capturing low-altitude UAVs. The miniature camera determines the UAV's position, a servo motor drives a crank and connecting rod to control the orientation of the capture claw, and the stepper motor causes the capture claw to open and close to grab the UAV. The blade assembly deters and damages the UAV's body. After capture, the UAV is placed in the recovery base for retrieval, achieving direct capture and retrieval of the UAV.

Description

Technical Field

[0001] This invention relates to the field of drone technology countermeasures, and in particular to a device for capturing low-altitude drones. Background Technology

[0002] In recent years, civilian drones have been widely used in aerial photography, agricultural plant protection, and emergency search and rescue, improving operational efficiency and information acquisition capabilities, and have become important production tools. However, with the rapid growth in the number of drones, the safety threats posed by their disorderly flights are becoming increasingly prominent. Especially in sensitive areas such as airport airspace, government buildings, and large event venues, illegal drone flights persist despite repeated bans, posing a serious challenge to public safety, aviation order, and personal privacy.

[0003] Among existing countermeasures, direct shooting can easily cause drones to crash out of control, resulting in secondary damage; while net capture is easily affected by environmental interference, has insufficient capture reliability, and is difficult to recover completely.

[0004] Therefore, there is a need for a device that can reliably capture and safely recover drones. Summary of the Invention

[0005] The purpose of this invention is to provide a device for capturing low-altitude unmanned aerial vehicles (UAVs). The device determines the location of the UAV using a miniature camera, controls the orientation of the capture claw by driving a crank and connecting rod via a servo motor, and opens and closes the capture claw to grab the UAV using a stepper motor. The device also deters and damages the UAV by using a blade assembly. After capture, the UAV is placed in a recovery base for retrieval, thus achieving direct capture and retrieval of the UAV and avoiding secondary damage caused by directly shooting down the UAV.

[0006] To achieve the above objectives, the present invention provides a device for capturing low-altitude unmanned aerial vehicles (UAVs), comprising a gripper and a recovery base. The gripper includes a base plate, a guide shaft connected to the lower end of the base plate, a connecting rod connecting block connected to the guide shaft, a connecting rod hinged to the connecting rod connecting block, a crank hinged to the connecting rod, a third outer rotating shaft provided at the hinged connection between the connecting rod connecting block and the connecting rod, a second outer rotating shaft provided at the hinged connection between the connecting rod and the crank, a first outer rotating shaft fixedly connected to the other end of the crank, a small motor mount and a blade mounting block provided at the upper end of the base plate, a blade assembly and a camera mounting block provided on the blade mounting block, a miniature camera provided on the camera mounting block, a stepper motor provided on the small motor mount, an inner rotating shaft connected to the stepper motor, and a capture claw connected to the inner rotating shaft. The capture claw is a quarter-sphere shell with one corner cut off at each end.

[0007] Preferably, the guide shaft and the connecting rod connecting block are connected to each other through a connecting sleeve.

[0008] Preferably, the stepper motor is connected to the inner rotating shaft via an inner coupling.

[0009] Preferably, the blade assembly consists of several individual blades arranged in a multi-layered ring shape.

[0010] Preferably, the number of capturing claws is four, and a magnet is provided at the tip of each capturing claw.

[0011] Preferably, the base plate is further provided with a rotating shaft frame, the inner rotating shaft is disposed on the rotating shaft frame, the inner rotating shaft is connected to a claw connecting block, and the claw connecting block is connected to the capturing claw.

[0012] Preferably, the first outer shaft is connected to a first outer coupling, and the first outer coupling is connected to a first servo motor.

[0013] Preferably, the second outer rotating shaft is fixedly connected to the connecting rod, and a rotary pair is formed between the second outer rotating shaft and the crank. The second outer rotating shaft is connected to a second outer coupling, the second outer coupling is connected to a second servo motor, and the outer housing of the second servo motor is connected to the crank.

[0014] Preferably, the third outer rotating shaft is fixedly connected to the connecting rod connecting block, and a rotary pair is formed between the third outer rotating shaft and the connecting rod. The third outer rotating shaft is connected to a third outer coupling, the third outer coupling is connected to a third servo motor, and the outer housing of the third servo motor is connected to the connecting rod.

[0015] Preferably, a suction cup is provided below the recycling base.

[0016] Therefore, the present invention employs the aforementioned device for capturing low-altitude drones. It determines the drone's position using a miniature camera, controls the orientation of the capture claw by driving a crank and connecting rod via a servo motor, and opens and closes the capture claw to grab the drone via a stepper motor. It also deters and damages the drone's body using a blade assembly. After capture, the drone is placed in a recovery base for retrieval, thus achieving direct capture and retrieval of the drone and avoiding secondary damage caused by directly shooting down the drone.

[0017] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of an embodiment of a device for capturing low-altitude unmanned aerial vehicles according to the present invention; Figure 2 This is an enlarged structural schematic diagram of point A of an embodiment of the device for capturing low-altitude unmanned aerial vehicles according to the present invention; Figure 3This is a schematic diagram of the internal structure of the capture claw in an embodiment of the device for capturing low-altitude unmanned aerial vehicles according to the present invention; Figure 4 This is an enlarged structural schematic diagram of section B of an embodiment of a device for capturing low-altitude unmanned aerial vehicles according to the present invention; Figure 5 This is a schematic diagram of the recovery base structure of an embodiment of the device for capturing low-altitude drones according to the present invention.

[0019] Figure Labels 1. First servo motor; 2. First external coupling; 3. First external rotating shaft; 4. Crank; 5. Connecting rod; 6. Connecting rod connecting block; 7. Connecting sleeve; 8. Guide shaft; 9. Base plate; 10. Small motor base; 11. Stepper motor; 12. Rotating shaft bracket; 13. Inner rotating shaft; 14. Inner coupling; 15. Capture claw; 16. Magnet; 17. Blade assembly; 18. Blade mounting block; 19. Camera mounting block; 20. Miniature camera; 21. Retrieval base; 22. Suction cup; 23. Second servo motor; 24. Third servo motor; 25. Claw connecting block; 26. Second external coupling; 27. Second external rotating shaft; 28. Third external rotating shaft; 29. ​​Third external coupling. Detailed Implementation

[0020] The technical solution of the present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Unless otherwise defined, the technical or scientific terms used in this invention shall have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The terms "first," "second," and similar terms used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0022] Example 1 This invention provides a device for capturing low-altitude unmanned aerial vehicles, such as... Figure 1 Figure 2As shown, the device includes a gripper used to grip a drone. The gripper includes a base plate 9, a guide shaft 8 connected to the lower end of the base plate 9, a connecting rod connecting block 6 connected to the guide shaft 8, a connecting rod 5 hinged to the connecting rod connecting block 6, a crank 4 hinged to the connecting rod 5, a third outer rotating shaft 28 provided at the hinged connection between the connecting rod connecting block 6 and the connecting rod 5, a second outer rotating shaft 27 provided at the hinged connection between the connecting rod 5 and the crank 4, a first outer rotating shaft 3 fixedly connected to the other end of the crank 4, and the guide shaft 8 and the connecting rod connecting block 6 connected to each other through a connecting sleeve 7.

[0023] The first outer shaft 3 is connected to the first outer coupling 2, and the first outer coupling 2 is connected to the first servo motor 1. The first servo motor 1 can be installed on a wall or other movable device or vehicle. The first servo motor 1 drives the first outer shaft 3 through the first outer coupling 2, causing the crank 4 to rotate around the first outer shaft 3.

[0024] The second outer shaft 27 is fixedly connected to the connecting rod 5, and a rotary joint is formed between the second outer shaft 27 and the crank 4. The second outer shaft 27 is connected to a second outer coupling 26, and the second outer coupling 26 is connected to a second servo motor 23. The outer housing of the second servo motor 23 is connected to the crank 4. The second servo motor 23 drives the second outer shaft 27 to rotate through the second outer coupling 26, thereby driving the connecting rod 5 to rotate relative to the crank 4.

[0025] The third outer rotating shaft 28 is fixedly connected to the connecting rod connecting block 6, forming a rotary joint between the third outer rotating shaft 28 and the connecting rod 5. The third outer rotating shaft 28 is connected to a third outer coupling 29, which is connected to a third servo motor 24. The outer housing of the third servo motor 24 is connected to the connecting rod 5. The third servo motor 24 drives the third outer rotating shaft 28 to rotate through the third outer coupling 29, thereby driving the connecting rod connecting block 6 to rotate relative to the connecting rod 5.

[0026] The first servo motor 1, the second servo motor 23, and the third servo motor 24 are controlled by a controller, which controls the angle, extension, and action posture of the device to ensure that it extends to capture the UAV after finding its location.

[0027] like Figure 3 Figure 4 As shown, a blade mounting block 18 is provided on the upper end of the base plate 9. A blade assembly 17 and a camera mounting block 19 are mounted on the blade mounting block 18. A miniature camera 20 is mounted on the camera mounting block 19. The miniature camera 20 is used to observe the position of the UAV, providing target information for the device's orientation adjustment and capture. The blade assembly 17 consists of several individual blades arranged in a multi-layered ring. The blade assembly 17 serves as a deterrent before capture. When the capture claw 15 closes, the blade assembly 17 assists in controlling the UAV and damages the UAV's body to ensure it cannot take off again.

[0028] A small motor base 10 is provided on the upper end of the base plate 9. A stepper motor 11 is provided on the small motor base 10. The stepper motor 11 is connected to an inner rotating shaft 13. The inner rotating shaft 13 is connected to a claw connecting block 25. The claw connecting block 25 is connected to a capturing claw 15. There are four capturing claws 15. The capturing claw 15 is a quarter-sphere shell with one corner cut off at the top and bottom. The stepper motor 11 is connected to the inner rotating shaft 13 through an inner coupling 14. A rotating shaft frame 12 is also provided on the base plate 9. The inner rotating shaft 13 is mounted on the rotating shaft frame 12.

[0029] Stepper motor 11 drives inner rotating shaft 13 to rotate on rotating shaft frame 12 via inner coupling 14. Inner rotating shaft 13 drives claw connecting block 25 to rotate, causing four capture claws 15 to open and close synchronously. When the capture claws 15 are closed, they form a spherical envelope space to achieve the envelopment and grasping of the drone; when they are open, they release the drone. Magnets 16 are provided at the top of the capture claws 15. When the four capture claws 15 are closed, the magnets 16 attract each other, enhancing the gripping force.

[0030] like Figure 5 As shown, there is a recovery base 21, and a suction cup 22 is provided below the recovery base 21. The recovery base 21 is used to receive the captured drone as a temporary storage platform, and the suction cup 22 is used to attach to the ground or vehicle to fix the base.

[0031] The device for capturing low-altitude unmanned aerial vehicles described in this embodiment operates as follows: First, fix the first servo motor 1 to the wall or mobile vehicle, and then use the suction cup 22 to attach the recovery base 21 to the ground or vehicle platform.

[0032] When it is necessary to capture a drone, the miniature camera 20 acquires images in real time to determine the drone's position. Based on the target information provided by the miniature camera 20, the controller drives the first servo motor 1, the second servo motor 23, and the third servo motor 24 to adjust the attitude of the capture claw 15, so that the capture claw 15 grasps the drone.

[0033] Stepper motor 11 drives inner rotating shaft 13 to rotate on rotating shaft frame 12 via inner coupling 14, and claw connecting block 25 keeps four capture claws 15 in an open state. When miniature camera 20 determines that capture claws 15 have reached the grasping position, stepper motor 11 drives inner rotating shaft 13 in reverse, and the four capture claws 15 synchronously close to form a spherical envelope space to wrap around the drone. Magnets 16 at the top of capture claws 15 attract each other to enhance gripping force, and blade assembly 17 assists in restricting and damaging the drone body during the closing process.

[0034] After successful capture, the capture claw 15 is moved above the recovery base 21, and the stepper motor 11 drives the capture claw 15 to open, releasing the drone into the recovery base 21, thus completing the safe capture and recovery.

[0035] Therefore, the present invention employs the aforementioned device for capturing low-altitude drones. It determines the drone's position using a miniature camera, controls the orientation of the capture claw by driving a crank and connecting rod via a servo motor, and opens and closes the capture claw to grab the drone via a stepper motor. It also deters and damages the drone's body using a blade assembly. After capture, the drone is placed in a recovery base for retrieval, thus achieving direct capture and retrieval of the drone and avoiding secondary damage caused by directly shooting down the drone.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solutions of the present invention, and these modifications or equivalent substitutions cannot cause the modified technical solutions to deviate from the spirit and scope of the technical solutions of the present invention.

Claims

1. A device for capturing low-altitude unmanned aerial vehicles, characterized in that: The device includes a gripper and a retrieval base. The gripper includes a base plate, with a guide shaft connected to the lower end of the base plate. The guide shaft is connected to a connecting rod block, which is hinged to a connecting rod. The connecting rod is hinged to a crank. A third outer rotating shaft is provided at the hinge connection between the connecting rod block and the connecting rod. A second outer rotating shaft is provided at the hinge connection between the connecting rod and the crank. A first outer rotating shaft is fixedly connected to the other end of the crank. A small motor mount and a blade mounting block are provided at the upper end of the base plate. A blade assembly and a camera mounting block are provided on the blade mounting block. A miniature camera is provided on the camera mounting block. A stepper motor is provided on the small motor mount, which is connected to an inner rotating shaft. The inner rotating shaft is connected to a capture claw, which is a quarter-sphere shell with one corner cut off at each end.

2. The device for capturing low-altitude unmanned aerial vehicles according to claim 1, characterized in that: The guide shaft and the connecting rod block are connected to each other via a connecting sleeve.

3. The device for capturing low-altitude unmanned aerial vehicles according to claim 1, characterized in that: The stepper motor is connected to the inner shaft via an inner coupling.

4. The device for capturing low-altitude unmanned aerial vehicles according to claim 1, characterized in that: The blade assembly consists of several individual blades arranged in a multi-layered ring.

5. The device for capturing low-altitude unmanned aerial vehicles according to claim 1, characterized in that: The number of capture claws is four, and a magnet is provided at the tip of each capture claw.

6. The device for capturing low-altitude unmanned aerial vehicles according to claim 1, characterized in that: The base plate is also provided with a rotating shaft frame, the inner rotating shaft is disposed on the rotating shaft frame, the inner rotating shaft is connected to a claw connecting block, and the claw connecting block is connected to the capturing claw.

7. The device for capturing low-altitude unmanned aerial vehicles according to claim 1, characterized in that: The first external shaft is connected to a first external coupling, and the first external coupling is connected to a first servo motor.

8. The device for capturing low-altitude unmanned aerial vehicles according to claim 1, characterized in that: The second outer rotating shaft is fixedly connected to the connecting rod, and a rotary pair is formed between the second outer rotating shaft and the crank. The second outer rotating shaft is connected to a second outer coupling, and the second outer coupling is connected to a second servo motor. The outer housing of the second servo motor is connected to the crank.

9. The device for capturing low-altitude unmanned aerial vehicles according to claim 1, characterized in that: The third outer rotating shaft is fixedly connected to the connecting rod connecting block, and a rotary pair is formed between the third outer rotating shaft and the connecting rod. The third outer rotating shaft is connected to a third outer coupling, and the third outer coupling is connected to a third servo motor. The outer housing of the third servo motor is connected to the connecting rod.

10. The device for capturing low-altitude unmanned aerial vehicles according to claim 1, characterized in that: A suction cup is installed below the recycling base.

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