Unmanned aerial vehicle countering device

Abstract

The utility model discloses an unmanned aerial vehicle countering device, which belongs to the technical field of unmanned aerial vehicle countering and comprises an unmanned aerial vehicle countering vehicle, the unmanned aerial vehicle countering vehicle is provided with sealing cover mechanisms which are symmetrically arranged, and the two sealing cover mechanisms jointly comprise a base plate and a double-shaft servo motor. The double-shaft servo motor is fixed to the middle of the top of the base plate through a screw, an output shaft of the double-shaft servo motor is in key connection with a lead screw, a nut seat is installed on the outer portion of the lead screw, and supporting arms are hinged to the two sides of the nut seat respectively. According to the unmanned aerial vehicle countering device, the problem caused by long-time exposure of antennas in a traditional unmanned aerial vehicle countering device in the external environment is effectively solved, when the device is not used, a detection antenna and an interference antenna are automatically stored in the device, and the detection antenna and the interference antenna are prevented from being damaged by external dust, silt or rainwater factors in the exposed state; and the storage protection of the detection antenna and the interference antenna is improved.

Description

A drone countermeasure device Technical Field

[0001] This utility model relates to the field of drone countermeasures technology, specifically a drone countermeasures device. Background Technology

[0002] With the rapid development of drone technology, especially against the backdrop of the widespread application of civilian drones, incidents of illegal drones entering sensitive areas and violating flight regulations are increasing. In order to effectively deal with the threats posed by drones, drone countermeasure technology has emerged and become an important means of ensuring airspace security. In existing drone countermeasure equipment, multiple types of antennas (detection antennas, jamming antennas, direction-finding antennas, etc.) are usually integrated into the equipment to monitor and interfere with signals in different frequency bands.

[0003] However, traditional drone countermeasures, such as the vehicle-mounted countermeasures system in Chinese patent CN202020016681.1, include components such as a chassis vehicle, detection antenna, jamming antenna, and direction-finding antenna. The antennas are exposed to the external environment for extended periods, and without effective protection, they are susceptible to external factors such as accidental impacts, dust accumulation, mud, or rainwater contamination, leading to a decline in antenna performance and affecting the overall stability of the countermeasures device. Therefore, a drone countermeasures device is proposed. Summary of the Invention

[0004] The purpose of this invention is to provide a drone countermeasure device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a drone countermeasure device, comprising a drone countermeasure vehicle, wherein symmetrically arranged sealing mechanisms are installed on the drone countermeasure vehicle;

[0006] Both sealing mechanisms together include a base plate and a dual-axis servo motor, which is fixed to the top center of the base plate by screws;

[0007] The output shaft of the dual-axis servo motor is keyed to a lead screw, and a nut seat is installed on the outside of the lead screw. Support arms are hinged to both sides of the nut seat, and a frame is hinged to the other side of the support arm. A top cover is screwed to the frame, and one edge of the top cover is hinged to the base plate. The two symmetrically arranged top covers form a closed structure when in a horizontal state.

[0008] Each of the top covers is equipped with a countermeasure mechanism, which includes two rodless cylinders. The two rodless cylinders are fixed to the inner walls of the top cover by screws, and a cross brace is fixedly connected between the two rodless cylinders by screws.

[0009] As a further preferred embodiment of this technical solution: the anti-drone vehicle also includes two sets of knockdown devices, which are respectively installed on the two cross braces by screws. Each set of knockdown devices includes five devices, and the two sets of knockdown devices are arranged in an alternating manner.

[0010] As a further preferred embodiment of this technical solution: a detection antenna is installed on one set of the falling devices, an interference antenna is installed on another set of the falling devices, and a direction-finding antenna is installed on the UAV countermeasure vehicle.

[0011] As a further preferred embodiment of this technical solution: the detection antenna, interference antenna and direction finding antenna are all located in the internal space enclosed by the top cover when not in use, and can be moved to the outside of the top cover when in use.

[0012] As a further preferred embodiment of this technical solution: sealing strips are adhered to all four edges of the top cover.

[0013] As a further preferred embodiment of this technical solution: a side support frame is installed on the top of the base plate and on both sides of the nut seat by screws. A damping plate is bonded to the top of the side support frame, and a pressure sensor is installed on the side of the side support frame. The pressure sensor is positioned below the damping plate.

[0014] As a further preferred embodiment of this technical solution: the top of the base plate, and at both ends of the lead screw, are respectively fitted with bearing seats by screws, and the two ends of the lead screw are respectively fixedly connected to the inner ring of the bearing in the corresponding bearing seat.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This invention effectively solves the problem of antennas being exposed to the external environment for a long time in traditional UAV countermeasure devices by designing a retractable embedded antenna structure. When not in use, the detection antenna and the jamming antenna are automatically stored inside the device, avoiding damage to the detection antenna and the jamming antenna due to external dust, mud or rain when exposed, thus improving the storage and protection of the detection antenna and the jamming antenna. Attached Figure Description

[0017] Figure 1 is a structural schematic diagram of a drone countermeasure device according to this utility model;

[0018] Figure 2 is a schematic diagram of the installation structure of the sealing mechanism and the countermeasure mechanism in a UAV countermeasure device of this utility model;

[0019] Figure 3 is a schematic diagram of the top cover structure of a UAV countermeasure device according to the present invention from a bottom view.

[0020] Figure 4 is a schematic diagram of the installation structure of the base plate and frame in a UAV countermeasure device of this utility model.

[0021] In the diagram: 10. UAV countermeasure vehicle; 20. Sealing mechanism; 21. Base plate; 22. Dual-axis servo motor; 23. Lead screw; 24. Nut seat; 25. Support arm; 26. Frame; 27. Top cover; 271. Sealing strip; 28. Bearing seat; 31. Side support frame; 32. Damping plate; 33. Pressure sensor; 40. Countermeasure mechanism; 41. Rodless cylinder; 42. Cross brace; 43. Tilting device; 44. Detection antenna; 45. Jamming antenna; 46. Direction finding antenna. Detailed Implementation

[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0023] Example 1

[0024] Please refer to Figures 1-4. This utility model provides a technical solution: a drone countermeasure device, including a drone countermeasure vehicle 10, on which symmetrically arranged sealing mechanisms 20 are installed;

[0025] The two sealing mechanisms 20 together include a base plate 21 and a dual-axis servo motor 22, which is fixed to the top center of the base plate 21 by screws;

[0026] The output shaft of the dual-axis servo motor 22 is keyed to a lead screw 23. A nut seat 24 is mounted on the outside of the lead screw 23. Support arms 25 are hinged to both sides of the nut seat 24. A frame 26 is hinged to the other side of the support arm 25. A top cover 27 is screwed onto the frame 26. One edge of the top cover 27 is hinged to the base plate 21. The two symmetrically arranged top covers 27 form a closed structure when in a horizontal state.

[0027] Each top cover 27 is equipped with a countermeasure mechanism 40, which includes two rodless cylinders 41. The two rodless cylinders 41 are fixed to the inner walls of the top cover 27 by screws, and a cross brace 42 is fixedly connected between the two rodless cylinders 41 by screws.

[0028] In this embodiment, specifically: the UAV countermeasure vehicle 10 also includes two sets of knockdown devices 43. The two sets of knockdown devices 43 are respectively installed on two cross bracing plates 42 by screws. Each set of knockdown devices 43 includes five, and the two sets of knockdown devices 43 are arranged in an alternating manner.

[0029] A detection antenna 44 is installed on one set of fallers 43, an interference antenna 45 is installed on another set of fallers 43, and a direction-finding antenna 46 is installed on the UAV countermeasure vehicle 10.

[0030] When not in use, the detection antenna 44, the interference antenna 45 and the direction finding antenna 46 are all located in the internal space enclosed by the top cover 27, and can be moved to the outside of the top cover 27 when in use;

[0031] Each set of fallers 43 is equipped with a detection antenna 44 and an interference antenna 45 to perform target detection and interference functions. At the same time, the UAV countermeasure vehicle 10 is also equipped with a direction-finding antenna 46 to provide the target's azimuth information.

[0032] Example 2

[0033] A drone countermeasure device has sealing strips 271 glued to all four edges of the top cover 27. The sealing strips 271 glued to the edges of the top cover 27 ensure the airtightness of the countermeasure mechanism 40.

[0034] In this embodiment, specifically: a side support frame 31 is installed on the top of the base plate 21 and on both sides of the nut seat 24 by screws. A damping plate 32 is bonded to the top of the side support frame 31, and a pressure sensor 33 is installed on the side of the side support frame 31. The pressure sensor 33 is set at a position lower than the damping plate 32.

[0035] A side support frame 31 is installed on the top of the base plate 21. A damping plate 32 is bonded to the top of the side support frame 31 to buffer the impact during the closing process of the top cover 27. A pressure sensor 33 is installed on the side of the side support frame 31 to detect the closing pressure and ensure the safe closing of the device.

[0036] In this embodiment, specifically: bearing seats 28 are installed on the top of the base plate 21 and at both ends of the lead screw 23 by screws, and the two ends of the lead screw 23 are respectively fixedly connected to the inner ring of the bearing in the corresponding bearing seat 28.

[0037] In this embodiment, specifically: the anti-drone vehicle 10 is equipped with a host, a control computer, a battery and an inverter;

[0038] The main unit is fixedly installed in the trunk of the chassis vehicle. That is, the bottom of the main unit is provided with mounting holes. The main unit is fixedly installed in the trunk by connecting the trunk floor plate through the mounting holes. The main unit is electrically connected to the detection antenna 44, the interference antenna 45, the direction finding antenna 46 and the control computer.

[0039] The input terminal of the battery is electrically connected to the engine of the chassis vehicle, the input terminal of the inverter is electrically connected to the output terminal of the battery, and the output terminal of the inverter is connected to the host and control computer to convert the DC power output by the battery into AC power to power the host and control computer.

[0040] It should be noted that the host, control computer, battery, inverter, detection antenna 44, jamming antenna 45, and direction-finding antenna 46 are technologies known in the art, and their principles are also conventional technical means in the art. The host, control computer, battery, inverter, and antenna structure principles in the publicly licensed CN202020016681.1 UAV countermeasure vehicle can be referred to, so they will not be elaborated here.

[0041] When the present invention is in operation: during the capping and unfolding stage, the dual-axis servo motor 22 in the capping mechanism 20 starts to work, drives the connected lead screw 23 to rotate, drives the nut seat 24 to move along the axial direction of the lead screw 23, and the nut seat 24 drives the support arms 25 hinged on both sides to open, so that the frame 26 connected to the other end of the support arm 25 rises accordingly, thereby driving the top cover 27 on the frame 26 to unfold and form an open state. After the two top covers 27 are fully opened, the countermeasure mechanism 40 in the original closed state is exposed to the outside.

[0042] Inside the countermeasure mechanism 40, there are two rodless cylinders 41 fixed on both sides of the inner wall of the top cover 27. The two rodless cylinders 41 are connected by a cross brace 42 and drive each other to complete the lateral synchronous deployment action. Two sets of knockdown devices 43 are installed on the cross brace 42. Each set of knockdown devices 43 consists of five units and is arranged in an alternating manner. One set of knockdown devices 43 is equipped with a detection antenna 44, and the other set of knockdown devices 43 is equipped with an interference antenna 45, which are used to perform detection and countermeasures at different stages. The direction finding antenna 46 is independently installed in the top area of ​​the UAV countermeasure vehicle 10.

[0043] After deployment, the device enters the target detection phase. The main unit controls the detection antenna 44 to scan the electromagnetic spectrum of the airspace target, monitor wireless signals such as remote control link and image transmission channel, perform preliminary identification, track the flight path and determine the suspicious level of the flight target, and enter the positioning judgment phase. The direction finding antenna 46 starts the direction identification function, performs multi-point direction finding data fusion on the target signal, and combines it with the data returned by the detection antenna 44 to lock the target's azimuth and possible flight path. If it is confirmed that countermeasures need to be executed, the device enters the jamming countermeasure phase.

[0044] The host controls the jamming antenna 45 to emit electromagnetic interference signals at a set frequency, power and direction to suppress the communication link and navigation system of the UAV. The jamming method can be selected according to the target type, such as directional jamming, full-frequency sweep jamming or beam tracking jamming, to ensure that the UAV can disengage or make a forced landing. The host monitors the target response status in real time and adjusts the jamming strategy to improve jamming efficiency and reduce error risk.

[0045] After the countermeasure is completed, the rodless cylinder 41 is retracted by controlling the cross brace 42 to drive the faller 43 to reset, the detection antenna 44 and the interference antenna 45 are retracted into the internal space, the direction finding antenna 46 is synchronously lowered to the initial position, the dual-axis servo motor 22 drives the lead screw 23 to rotate in the opposite direction, so that the nut seat 24 drives the support arm 25 to reset, and the top cover 27 automatically closes to form a closed state.

[0046] In addition, in this embodiment, the top cover 27 in the sealing mechanism 20 not only undertakes the structural protection function, but also directly participates in the angle adjustment control of the countermeasure mechanism 40.

[0047] Specifically, the opening and closing angle of the top cover 27 during the unfolding process can simultaneously affect the horizontal detection angle range of the detection antenna 44 and the jamming antenna 45 in the countermeasure mechanism 40. When the opening angle of the top cover 27 increases, the coverage range of the detection and jamming directions also expands, which can adapt to a wider range of airspace monitoring and countermeasure needs. Conversely, when space is limited or only a small range of detection is required, the top cover 27 can maintain a small opening angle to improve the energy concentration and directionality of the system.

[0048] Meanwhile, the rodless cylinder 41 inside the countermeasure mechanism 40 drives the cross support plate 42 to rise vertically when it is working. The height of its rise directly determines the vertical detection height of the detection antenna 44 and the interference antenna 45. By controlling the extension and retraction of the rodless cylinder 41, the interference capability of the detection antenna 44 and the interference antenna 45 at different heights can be adjusted.

[0049] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art 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 appended claims and their equivalents.

Claims

1. A countermeasure device for unmanned aerial vehicles (UAVs), characterized in that: The system includes a drone countermeasure vehicle (10), on which symmetrically arranged sealing mechanisms (20) are installed. Both sealing mechanisms (20) together include a base plate (21) and a dual-axis servo motor (22). The dual-axis servo motor (22) is fixed to the top center of the base plate (21) by screws. The output shaft of the dual-axis servo motor (22) is keyed to a lead screw (23). A nut seat (24) is installed on the outside of the lead screw (23). Support arms (25) are hinged to both sides of the nut seat (24). The other side of the support arm (25)... A frame (26) is hinged, and a top cover (27) is screwed onto the frame (26). One edge of the top cover (27) is hinged to the base plate (21). The two symmetrically arranged top covers (27) form a closed structure when in a horizontal state. Each top cover (27) is provided with a countermeasure mechanism (40). The countermeasure mechanism (40) includes two rodless cylinders (41). The two rodless cylinders (41) are fixed to the inner walls of the top cover (27) by screws. A cross brace (42) is fixedly connected between the two rodless cylinders (41) by screws.

2. The anti-drone device according to claim 1, characterized in that: The anti-drone vehicle (10) also includes two sets of knockdown devices (43). The two sets of knockdown devices (43) are respectively installed on the two cross braces (42) by screws. Each set of knockdown devices (43) includes five, and the two sets of knockdown devices (43) are arranged in an alternating manner.

3. The anti-drone device according to claim 2, characterized in that: One set of the fallers (43) is equipped with a detection antenna (44), another set of the fallers (43) is equipped with an interference antenna (45), and the UAV countermeasure vehicle (10) is equipped with a direction-finding antenna (46).

4. The anti-drone device according to claim 3, characterized in that: The detection antenna (44), interference antenna (45) and direction finding antenna (46) are all located in the internal space enclosed by the top cover (27) when not in use, and can be moved to the outside of the top cover (27) when in use.

5. A drone countermeasure device according to claim 1, characterized in that: Sealing strips (271) are glued to all four edges of the top cover (27).

6. The anti-drone device according to claim 1, characterized in that: The base plate (21) is topped and located on both sides of the nut seat (24), and side support frames (31) are respectively installed by screws. A damping plate (32) is glued to the top of the side support frame (31), and a pressure sensor (33) is installed on the side of the side support frame (31). The pressure sensor (33) is located below the damping plate (32).

7. The anti-drone device according to claim 1, characterized in that: The top of the base plate (21) and at both ends of the lead screw (23) are respectively fitted with bearing seats (28) by screws. The two ends of the lead screw (23) are respectively fixedly connected to the inner ring of the bearing in the corresponding bearing seat (28).

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