Air net opening type anti-unmanned aerial vehicle system and method

Abstract

The invention discloses an air net opening type anti-unmanned aerial vehicle system and method. The air net opening type anti-unmanned aerial vehicle system comprises a vehicle body structure, a net opening mechanism and a net box system which are detachably connected. The machine body structure is composed of a battery cover, machine arms, a machine base and a machine tail cover, the battery cover, the machine base and the machine tail cover are sequentially connected through screws, the machine arms are distributed on the outer side of the machine base at equal intervals, the front end of the battery cover is provided with standard interfaces capable of being matched with various seekers, and the surface of the machine base is provided with a quick-release inserting groove used for quickly installing a net box system. The net opening mechanism is installed in the machine body structure and comprises a sliding block, two symmetrically-arranged clamping arms and a clamping arm seat used for fixing the clamping arms, the high-speed unmanned aerial vehicle is adopted as an intercepting carrier, multi-mode guiding is combined, and long-distance rapid approaching and high-precision tail end intercepting are achieved; meanwhile, the net opening mechanism is adopted to drive the net box to ensure that the net body is rapidly, stably and completely unfolded, the success rate is remarkably increased, the continuous interception requirement is effectively met, and the cost is far lower than that of a laser kinetic energy striking system.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of unmanned aerial vehicles, in particular to an aerial open-network anti-unmanned aerial vehicle system and method. BACKGROUND

[0002] The popularity of unmanned aerial vehicle technology has brought serious "black flight" safety problems, which pose a threat to aviation, privacy, critical infrastructure and national security.

[0003] There are three main types of existing anti-unmanned aerial vehicle technology. The first is the interference blocking type: by emitting a specific frequency of interference signal (such as GPS navigation signal, data link signal between unmanned aerial vehicle and remote controller) through a special interference source, the control link of the target unmanned aerial vehicle is cut off, so that it loses control ability and forces landing or returns. However, this technology has significant defects: the coverage range of the interference signal is difficult to control accurately, and it may cause "injury" to the surrounding normal running electronic equipment (such as mobile phones, civilian navigation equipment) and public communication, navigation signals.

[0004] The second is the kinetic energy attack type: using high-energy laser, small cannonball, high-pressure water gun and other weapons to directly aim at and destroy the target unmanned aerial vehicle. Although this technology can quickly eliminate the threat of the target, it has two major problems: one is the high cost of hardware purchase and use (the cost of a single high-energy laser anti-unmanned aerial vehicle device often reaches several million yuan), which makes it difficult to be widely applied.

[0005] The last one is the decoy hijacking type: by building an analog GPS signal source or unmanned aerial vehicle control signal source, it pretends to be the "legal control end" of the target unmanned aerial vehicle, so as to take over the control of the unmanned aerial vehicle and guide it to land in a designated safe area.

[0006] The above technologies all have limitations such as difficult to control coverage, high cost, easy to cause secondary damage, or easy to be upgraded to avoid, etc. Compared with the above three types of technology, the physical capture type interception technology, especially the net capture technology, can realize the complete capture of the unmanned aerial vehicle, avoid secondary damage, and facilitate evidence fixation; however, the net capture type anti-unmanned aerial vehicle system still has two major technical difficulties, which restrict its popularization and application: 1. It is difficult to balance high launching precision and long effective range: in order to improve the effective interception range, the traditional net bomb launching device mostly uses large power launching methods such as powder driving and high-pressure gas driving. Although this method can push the net bomb to a distance of 50-100m, the flight attitude of the net bomb after launching is greatly affected by the air flow, and the stability is poor, which cannot accurately aim at and capture small high-speed unmanned aerial vehicles (such as fixed-wing unmanned aerial vehicles with a wingspan of less than 50cm and a speed of more than 80km / h); while some near-range launching schemes (such as using small motors) that pursue high precision, the effective range is only 10-20m, which greatly limits the effective defense range of the system, and it is difficult to deal with long-distance "black flight" targets.

[0007] 2. Low reliability of net deployment: Existing net launching mechanisms mostly rely on air resistance for deployment (such as deployment through the drag force of air on the net during the flight of the net catapult) or a single spring-driven deployment. Affected by factors such as aerodynamic fluctuations (such as sudden gusts of wind and turbulence) and mechanical fatigue failure (such as spring elasticity decay and buckle loosening), problems such as net entanglement, net rope breakage, and incomplete net deployment often occur, leading to interception failure. According to industry test data, the net deployment success rate of existing net capture systems is less than 80%. Summary of the Invention

[0008] To achieve the above objectives, this application provides an aerial open-net anti-drone system, including a detachably connected airframe structure, an open-net mechanism, and a net box system; The airframe structure consists of a battery cover, arms, base, and tail cover. The battery cover, base, and tail cover are connected sequentially by screws. The arms are evenly distributed on the outside of the base. The front of the battery cover has a standardized interface that can be adapted to various guide heads. The surface of the base has a quick-release slot for rapid installation of the net box system. The airframe structure is the core load-bearing and power support component of the system. It is made of high-strength and lightweight materials, with the overall weight controlled within 1kg. It is used to install airborne equipment, rechargeable lithium batteries, guide heads, net opening mechanism, and net box system. Its structural design meets the requirements of compatibility, heat dissipation, aerodynamics, and practicality. The net-opening mechanism is installed inside the body structure and includes a slider, two symmetrically arranged clamping arms, a clamping arm seat for fixing the clamping arms, a motor seat that can be clamped by the clamping arms, and a net-opening servo. A connecting rod is provided between the net-opening servo and the motor seat. The clamping arm seat has an outward extension angle of 3-15° with the axis of the body structure. The net-opening servo drives the slider to move through the connecting rod, controlling the clamping arms to maintain or release the clamping action on the motor seat. The net box system contains a capture net. When the clamping arm releases the motor base, the motor base flies outward under the action of power, pulling the capture net out of the net box system and unfolding it.

[0009] Furthermore, the outer surface of the fuselage structure adopts a recessed screw head design, and the internal structure is equipped with a heat dissipation duct that utilizes the airflow of flight for convection. To ensure that the capture net is not obstructed by the protruding structures on the fuselage surface during deployment, all connecting screws on the outer surface of the fuselage have recessed screw heads, with the top of the screw head flush with the outer surface of the fuselage, maintaining a smooth overall aerodynamic shape and reducing flight drag. To address the heat dissipation requirements of airborne equipment during high-speed flight, the fuselage is designed with heat dissipation air intakes. Through natural convection of airflow during flight, heat is dissipated from the fuselage, preventing equipment performance failures such as flight control system crashes and ESC module protection shutdowns caused by overheating.

[0010] Furthermore, the opening mechanism also includes power contact terminals located at the bottom of the motor mount and the top of the clamp arm mount. When the motor mount is clamped by the clamp arm, the terminal contacts are connected to supply power to the brushless motor mounted on the motor mount.

[0011] Furthermore, the net box system includes a net box body and a net box cover. The net box cover consists of four independent structures, which are connected to the top of the net box body via an interference fit. The net box body has an internal annular cavity to accommodate the capture net. The net box cover is divided into four independent structures, each of which is connected to the top of the net box body via an interference fit. The net box cover and the net box body can be connected with tape to secure the net box cover during storage and transportation, preventing the net box cover from opening accidentally. When the motor base pulls out the net rope, the tension of the net rope can easily open the interference fit, preventing the net box cover from obstructing the unfolding of the net and ensuring that the capture net quickly and undisturbedly detaches from the net box body.

[0012] Furthermore, the capture net is folded and stored in a radial folding sequence within the net box body; the capture net is inserted into the cavity of the net box body according to the "radial folding sequence" (folding layer by layer from the center of the net surface to the surrounding area, with each layer folded at an angle of 45°), ensuring that the net ropes do not cross or entangle during the folding process, and that the edges of the net surface are in close contact with the inner wall of the net box body.

[0013] Furthermore, the quick-release slot has a built-in latch, and the net box system can quickly connect to the body structure through the slot; the net box system can quickly connect to the body through the slot without the need for tools such as screwdrivers and wrenches, and a single person can complete the installation and removal of the net box within 30 seconds, which greatly improves the efficiency of reloading in actual combat scenarios and meets the needs of continuous interception operations.

[0014] Furthermore, the edge of the capture net is connected to the motor base of the net opening mechanism via four net ropes; after the capture net is unfolded, it forms a square net surface (the diameter and depth of the cavity of the net box can be adjusted according to the required net area).

[0015] In addition, this application also provides an aerial open-net counter-drone method, including the following steps: S1: Detects and locks onto the target drone using the guidance system; S2: Controls the anti-drone system to fly close to the target; S3: At the preset interception position, the net opening mechanism is triggered, releasing the motor mount; S4: The motor mount spreads outward, pulling the capture net out of the net box to form an interception net surface to capture the target drone.

[0016] Furthermore, in step S3, the action of triggering the net opening mechanism is as follows: the net opening servo rotates, driving the slider to move, causing the clamping arm to lose support and rotate to release the clamped motor seat.

[0017] Furthermore, the capture net unfolds in the air to form a square net surface with an area of ​​2-5 square meters.

[0018] Because the present invention adopts the above technical solution, it has the following beneficial effects: 1. Balancing Accuracy and Range: This application designs the net-capture system itself as a high-speed, highly maneuverable interceptor drone, rather than a one-time-launched "net bullet." It approaches the target under its own power, and its effective range depends on its endurance, easily covering a range of several hundred meters to several kilometers. Simultaneously, it is equipped with multiple types of guidance heads (visual, radar, laser), achieving long-range detection and high-precision terminal tracking and aiming. This "carrier mobility + intelligent guidance" model fundamentally separates the "propulsion" and "aiming" functions, enabling the system to rapidly approach the enemy at long distances while precisely triggering interception actions at the optimal position (e.g., within 15 meters behind the target), perfectly balancing range and accuracy.

[0019] 2. This application abandons the traditional unreliable method of relying on air resistance or a single spring for deployment, and innovatively adopts a net-opening mechanism with dual protection of "inertia + mechanical guidance": Dual-power drive: When the net is opened, the combined effect of the rotational inertia of the brushless motor after power failure and the forward flight inertia of the intercepting drone provides ample and stable power for the launch of the motor mount (net anchor point).

[0020] Mechanical guidance ensures proper unfolding: By pre-setting the clamping arm of the fixed motor base to an "outward octagonal angle" of 3-15°, it ensures that the four motor bases can spread out evenly and controllably in all directions when pushed out, thereby stably and completely unfolding the net. This mechanical guidance avoids the risk of the net becoming tangled or partially folded in the air due to uneven force.

[0021] 3. High reliability of net deployment: By utilizing the synergistic effect of motor inertia, flight inertia and mechanical structure (outer octagonal clamping arm seat), the net can be deployed quickly, stably and completely, significantly improving the success rate. The net can be deployed completely in 0.5-1 seconds, and its reliability far exceeds the "current net deployment success rate of less than 80%" mentioned in the background technology.

[0022] 4. Modular, efficient and cost-controllable: The airframe, net-opening mechanism and net box system adopt a quick-release design, allowing for rapid bomb replacement and meeting the needs of continuous interception; the modular seeker interface is adaptable to different scenarios; physical capture eliminates the risk of debris falling, and the system is developed based on mature UAV components, making its cost far lower than that of laser and other kinetic energy strike systems. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 For the present invention Figure 1 A schematic diagram of the body structure; Figure 3 For the present invention Figure 1 A schematic diagram of the Zhongkai.com organization; Figure 4 For the present invention Figure 3 Schematic diagram of the middle clamping arm; Figure 5 For the present invention Figure 1 A schematic diagram of the central network box system; Figure 6 For the present invention Figure 5 A schematic diagram of the main body of the central network box; Figure 7 For the present invention Figure 1 An enlarged schematic diagram of part A in the middle; In the diagram: 1. Body structure; 11. Battery cover; 12. Arm; 13. Base; 14. Tail cover; 2. Net opening mechanism; 21. Clamping arm seat; 22. Clamping arm; 23. Slider; 24. Connecting rod; 25. Motor base; 26. Net opening servo; 3. Net box system; 31. Net box body; 32. Net box cover. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. In addition, the terms "first," "second," "third," "upper," "lower," "left," "right," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] Please see Figures 1-7 As shown, this application provides an aerial open-net anti-drone system, including a detachably connected airframe structure 1, an open-net mechanism 2, and a net box system 3. The airframe structure 1 is the core load-bearing and power support component of the system, made of high-strength and lightweight materials, with an overall weight controlled within 1kg. It is used to install airborne equipment (including flight control system, ESC module, and wireless communication module), rechargeable lithium battery, seeker head, open-net mechanism, and net box system. Its structural design meets the requirements of compatibility, heat dissipation, aerodynamics, and practicality.

[0026] The fuselage structure 1 consists of a battery cover 11, fuselage arms 12, fuselage base 13, and tail cover 14. The battery cover 11, fuselage base 13, and tail cover 14 are connected sequentially by screws. The fuselage arms 12 are evenly distributed on the outside of the fuselage base 13. The front end of the battery cover 11 is provided with a standardized interface that can be adapted to various guidance heads. The surface of the fuselage base 13 is provided with a quick-release slot for quick installation of the net box system 3. A standardized guidance head installation interface is reserved at the center of the front end of the fuselage, which can be adapted to one or more of visual guidance heads, radar guidance heads, and laser guidance heads to realize single guidance or multi-guidance composite working mode, and adapt to the target detection needs of different scenarios (such as "radar + vision" composite guidance in airport scenarios, and "visual guidance" in large event sites).

[0027] The net-opening mechanism 2 is installed inside the body structure 1 and includes a slider 23, two symmetrically arranged clamping arms 22, a clamping arm seat 21 for fixing the clamping arms 22, a motor seat 25 that can be clamped by the clamping arms 22, and a net-opening servo 26. A connecting rod 24 is provided between the net-opening servo 26 and the motor seat 25. The clamping arm seat 21 has an outward extension angle of 3-15° with the axis of the body structure 1. The net-opening servo 26 drives the slider 23 to move through the connecting rod 24, controlling the clamping arms 22 to maintain clamping or release the motor seat 25. The net box system 3 contains a capture net. When the clamping arm 22 releases the motor base 25, the motor base 25 flies outward under the action of power, pulling the capture net out of the net box system 3 and unfolding it.

[0028] More specifically, the outer surface of fuselage structure 1 adopts a recessed screw head design, and the interior of fuselage structure 1 is equipped with a heat dissipation duct that utilizes the airflow during flight for convection. The top of the screw head is flush with the outer surface of the fuselage, maintaining a smooth overall aerodynamic shape and reducing flight drag. To address the heat dissipation requirements of airborne equipment during high-speed flight, the fuselage is designed with heat dissipation air intake ducts. Through natural convection of airflow during flight, heat is dissipated from the fuselage, preventing equipment performance failures such as flight control system crashes and ESC module protection shutdowns caused by overheating.

[0029] More specifically, the net-opening mechanism 2 also includes power contact terminals located at the bottom of the motor mount 25 and the top of the clamping arm mount 21. When the motor mount 25 is clamped by the clamping arm 22, the terminals are connected and supply power to the brushless motor mounted on the motor mount 25. The clamping arm 22 consists of two symmetrically distributed arms on both sides of the slider 23, hinged to the clamping arm mount 21, with an arc-shaped clamping surface on the inner side. The clamping arm mount 21 is fixed to the tip of the arm by bolts, forming an "outward octagonal angle" of 3-15° with the axis of the body (the angle can be adjusted according to the size of the target UAV). The motor mount 25 is arranged on the clamping arm mount 21 at the end of the arm, with a brushless motor mounted on the top and a plastic propeller mounted on the motor output shaft. The net-opening servo 26 is fixed to the body structure 1 by a bracket, and the output shaft is connected to the slider by a cross arm. The power contact terminals are made of brass with a gold-plated surface and are divided into moving terminals and stationary terminals. The moving terminals are fixed to the bottom of the motor mount, and the stationary terminals are fixed to the top of the clamping arm mount.

[0030] More specifically, the net box system includes a net box body 31 and a net box cover 32. The net box cover 32 consists of four independent structures, which are connected to the top of the net box body 31 via an interference fit. The capture net is folded and stored inside the net box body 31 in a radial folding sequence. The net box cover 32 is divided into four independent structures, each of which is connected to the top of the net box body 31 via an interference fit. The net box cover 32 and the net box body 31 can be connected with tape to fix the net box cover 32 during storage and transportation, preventing the net box cover 32 from opening accidentally. When the motor base 25 pulls out the net rope, the tension of the net rope can easily open the interference fit, avoiding the net box cover 32 from obstructing the unfolding of the net, ensuring that the capture net quickly and undisturbedly detaches from the net box body 31.

[0031] More specifically, the quick-release slot has a built-in latch, and the net box system 3 can quickly connect with the airframe structure 1 through the slot; without the need for screwdrivers, wrenches or other tools, a single person can complete the installation and removal of the net box within 30 seconds, which greatly improves the efficiency of bomb changing in actual combat scenarios and meets the needs of continuous interception operations; the airframe structure 1 has reserved dedicated airborne equipment installation slots (size adapted to flight control system and ESC module) and battery installation slots to ensure that the equipment and battery are tightly installed and avoid poor contact; an external navigation system installation slot is designed in the center of the top of the airframe for installing a high-precision GNSS module (supporting GPS + Beidou dual-mode positioning).

[0032] More specifically, the edge of the capture net is connected to the motor base 25 of the net opening mechanism 2 via four net ropes.

[0033] This application also provides an aerial open-net counter-drone method, including the following steps: S1: Detects and locks onto the target drone using the guidance system; S2: Controls the anti-drone system to fly close to the target; S3: At the preset interception position, the net opening mechanism is triggered, releasing the motor mount; S4: The motor mount 25 spreads outward, pulling the capture net out of the net box to form an interception net surface to capture the target drone.

[0034] More specifically, the triggering action of the net-opening mechanism is as follows: the net-opening servo 26 rotates, driving the slider 23 to move, causing the clamping arm 22 to lose support and rotate to release the clamped motor base 25; the capture net unfolds in the air to form a square net surface with an area of ​​2-5 square meters.

[0035] Example: First, security personnel need to deploy and activate the system: the assembled system can be placed at a preset takeoff point. After the system is powered on, it performs a self-test, the visual seeker is activated, the flight control system establishes a link with the ground control station, and the operator confirms airspace safety through the control station before issuing the takeoff command. After the system is started, the airborne visual seeker continuously scans the preset airspace, detects suspicious targets, and compares them with the built-in UAV feature database through image recognition algorithms. Within 0.5 seconds, it confirms the type of UAV and determines whether it is a "black flight" target. Then, the flight control system immediately locks onto the target and begins to calculate the target's relative position, speed, and heading. At the same time, the high-precision GNSS module and inertial measurement unit (IMU) on the system provide its own high-frequency positioning and attitude data. Based on the motion parameters of both parties, the flight control system plans an optimal interception trajectory in real time: it commands the system to climb and accelerate at a speed of 25 m / s, approaching the target from the rear and above. When it reaches the preset interception distance, it enters the standby state: the net-opening servo 26 drives the slider 23 to the locked position, pressing against the clamping arm 22 to clamp the motor mount 25. The moving terminal at the bottom of the motor mount 25 is in contact with the stationary terminal at the top of the clamping arm mount 21 to supply power, and the motor works to provide flight thrust. The flight control system sends a high-priority pulse command to the net-opening servo 26 to trigger deployment: the net-opening servo 26 responds instantly, its output shaft precisely rotating 90 degrees. This action is transmitted through the linkage 24, driving the slider 23 to slide backward about 10 mm along the linear guide rail. After the slider 23 moves, the two unsupported clamping arms 22, under the action of their internal torsion springs, immediately spring outward and rotate, releasing the clamps on the motor mounts 25. The four motor mounts 25 then release their grips on the motor mounts 25 due to thrust and inertia. The net is quickly and evenly spread outward from the "outward octagon" angle of the lower edge clamping arm seat 21, thereby pulling the net rope. The entire net opening process is completed within 0.7 seconds. A circular interception net with a diameter of about 2 meters is fully unfolded in front of the target drone's flight path, covering and entangled the target drone, and completing the capture. During the unfolding process of the net: after the clamping arm 22 loses support, it releases the motor seat 25. The rotational inertia of the motor and the flight inertia together push the motor seat quickly out of the clamping arm seat 21 with the "outward octagon" angle, forming the interception net surface.

[0036] Upon landing, the flight control system guides the system, carrying the captured target drone, to smoothly fly towards a pre-designated safe recovery area outside the site, prioritizing open grassy areas. After a slow landing, security personnel can quickly approach, first disabling the power of the system, and then handling the netted target drone. Next, preparations for reloading can be made by pressing the latch on the quick-release slot on the back of the unit to remove the used net box system 3 (including the empty net). Then, a spare net box system 3 pre-loaded with a new capture net is inserted into the slot and locked with a "click" sound. The entire process takes less than 25 seconds, and the system can then re-enter standby mode, ready to deal with the next potential threat.

[0037] This embodiment fully demonstrates the efficient, safe, and reliable application process of an aerial open-net anti-drone system in a real-world complex scenario. Through modular design, intelligent guidance, and the collaborative work of an innovative open-net mechanism, it successfully achieves accurate detection, rapid approach, reliable capture, and safe recovery of "black flight" drones, fully achieving the intended purpose of this invention.

[0038] In summary, this application uses a high-speed UAV as the interception carrier and combines multi-mode guidance to achieve long-range rapid approach and high-precision terminal interception. At the same time, the use of a net-opening mechanism to drive the net box ensures that the net can be deployed quickly, stably, and completely, significantly improving the success rate and effectively meeting the requirements for continuous interception. Moreover, the cost is far lower than that of kinetic energy strike systems such as lasers.

[0039] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within the present invention.

Claims

1. An aerial open-net anti-drone system, characterized in that, It includes a detachable body structure (1), a net opening mechanism (2), and a net box system (3); The body structure (1) consists of a battery cover (11), a machine arm (12), a base (13) and a tail cover (14), wherein the battery cover (11), the base (13) and the tail cover (14) are connected in sequence by screws, the machine arm (12) is evenly distributed on the outside of the base (13), the front end of the battery cover (11) is provided with a standardized interface that can be adapted to a variety of guide heads, and the surface of the base (13) is provided with a quick-release slot for quickly installing the net box system (3); The net-opening mechanism (2) is installed inside the body structure (1) and includes a slider (23), two symmetrically arranged clamping arms (22), a clamping arm seat (21) for fixing the clamping arms (22), a motor seat (25) that can be clamped by the clamping arms (22), and a net-opening servo (26). A connecting rod (24) is provided between the net-opening servo (26) and the motor seat (25). The clamping arm seat (21) has an outward extension angle of 3-15° with the axis of the body structure (1). The net-opening servo (26) drives the slider (23) to move through the connecting rod (24) to control the clamping arms (22) to hold or release the motor seat (25). The net box system (3) contains a capture net. When the clamping arm (22) releases the motor base (25), the motor base (25) flies outward under the action of power, pulling the capture net out of the net box system (3) and unfolding it.

2. The aerial open-net anti-drone system according to claim 1, characterized in that, The outer surface of the body structure (1) adopts a screw head recessed design, and the interior of the body structure (1) is provided with a heat dissipation duct that utilizes the airflow of flight for convection.

3. The aerial open-net anti-drone system according to claim 1, characterized in that, The opening mechanism (2) also includes power contact terminals located at the bottom of the motor base (25) and the top of the clamp arm base (21). When the motor base (25) is clamped by the clamp arm (22), the terminals are connected to supply power to the brushless motor mounted on the motor base (25).

4. The aerial open-net anti-drone system according to claim 1, characterized in that, The mesh box system includes a mesh box body (31) and a mesh box cover (32). The mesh box cover (32) consists of four independent structures that are connected to the top of the mesh box body (31) by interference fit.

5. The aerial open-net anti-drone system according to claim 1, characterized in that, The capture net is folded and stored in the net box body (31) in a radial folding sequence.

6. The aerial open-net anti-drone system according to claim 1, characterized in that, The quick-release slot has a built-in latch, and the wire mesh system (3) can quickly connect with the body structure (1) through the slot.

7. The aerial open-net anti-drone system according to claim 1, characterized in that, The edge of the capture net is connected to the motor base (25) of the net opening mechanism (2) by four net ropes.

8. An aerial open-net counter-drone method using the system described in any one of claims 1-7, characterized in that, Includes the following steps: S1: Detects and locks onto the target drone using the guidance system; S2: Control the anti-drone system to fly close to the target; S3: At the preset interception position, the opening mechanism (2) is triggered to release the motor mount (25). S4: The motor mount (25) spreads outward, pulling the capture net out of the net box body (31) to form an interception net surface to capture the target drone.

9. The method according to claim 7, characterized in that, In step S3, the action of triggering the opening mechanism is as follows: the opening servo (26) rotates, driving the slider (23) to move, causing the clamping arm (22) to lose support and rotate to release the clamped motor seat (25).

10. The method according to claim 7, characterized in that, The capture net unfolds in the air to form a square net surface with an area of ​​2-5 square meters.

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