Net capturing type unmanned aerial vehicle countering device

Abstract

The invention discloses a net capturing type unmanned aerial vehicle countering device, and belongs to the technical field of unmanned aerial vehicle countering equipment. The problem that an existing netting type unmanned aerial vehicle is difficult to catch an opposite unmanned aerial vehicle to surf the internet and smoothly and successfully carry and recover is solved. The netting type unmanned aerial vehicle countering device comprises an aerial carrier unmanned aerial vehicle and further comprises a netting device installed below a vehicle body of the aerial carrier unmanned aerial vehicle, the netting device comprises a connecting mechanism, a self-disengaging mechanism and a catching net, the connecting mechanism comprises a connecting ring and a contraction rope, and the connecting ring is located under the vehicle body of the aerial carrier unmanned aerial vehicle; one end of the contraction rope is arranged in a ring hole of the connecting ring in a penetrating mode, the other end of the contraction rope is arranged in a net hole in the edge of the catching net in a penetrating mode along the edge of the catching net, and the self-disengaging mechanism is used for opening the catching net during connection and used for being matched with the contraction rope to tighten the catching net during disengaging. The net capturing type unmanned aerial vehicle countering device has the advantages of being simple in structure, high in capturing and net surfing success rate and capable of being stably carried and recycled.

Description

Technical Field

[0001] The present invention relates to the technical field of drone countermeasure equipment, and in particular to a net-catching type drone countermeasure device. Background Art

[0003] At present, drone countermeasure technologies are roughly divided into signal jamming, radar detection, laser cannon shooting down, and comprehensive technologies. They are mainly countermeasured through GPS spoofing, hardware implantation of GPS spoofing, control signal jamming and hijacking, sound wave jamming, thermal weapons or laser cannons, etc. Each countermeasure method has its advantages and disadvantages and strict application scenarios, and the efficiency of countermeasures against drones needs to be further improved.

[0004] In order to improve the efficiency of countermeasures against illegal drones, the announcement number CN118049888 was published. A, a Chinese patent entitled "System and method for countering illegal drones by using net-catching drones", the disclosed technical solution comprises: a vehicle-mounted platform and a plurality of net-catching drones, the plurality of net-catching drones being arranged on the vehicle-mounted platform; the net-catching drones comprising a net-catching launch tube and a distance-finding sensor, the axis of the net-catching launch tube being parallel to the direction-finding of the distance-finding sensor; a capture net is also installed in the net-catching launch tube, the inner wall of the net-catching launch tube is provided with a spiral groove, the bottom of the spiral groove is connected with an ignition line, and a blank cartridge is installed at the bottom of the net-catching launch tube; the vehicle-mounted platform is used to detect illegal drones during travel, and after determining the real-time position of the illegal drones, control the plurality of net-catching drones to take off; each of the net-catching drones is used to detect the relative distance to the illegal drones by using the distance-finding sensor after taking off, and after determining that the relative distance meets the preset capture distance range, use the ignition line to ignite the blank cartridge, so that the capture net rotates at high speed along the axis of the net-catching launch tube and then flies out to capture the illegal drones. The above-mentioned method of igniting blank cartridges to launch a capture net to capture illegal drones has greatly improved the efficiency of countering illegal drones. However, there are still some problems: especially for the capture of hovering drones and drones moving at medium and low speeds, it is difficult to capture them on the net and carry them for recovery smoothly and successfully. Summary of the invention

[0005] The present application solves the technical problem in the prior art that hovering drones and drones moving at medium and low speeds cannot be captured online and smoothly and successfully carried back for recovery by providing a net-capturing drone countermeasure device, thereby achieving the technical effect of being able to capture hovering drones and drones moving at medium and low speeds online and smoothly and successfully carried back for recovery.

[0006] The present application provides a net-capturing UAV countermeasure device, including a carrier UAV, characterized in that it also includes a net-capturing device installed below the body of the carrier UAV, the net-capturing device includes a connecting mechanism, a self-detaching mechanism and a capturing net, the connecting mechanism includes a connecting ring and a retracting rope, the connecting ring is located directly below the body of the carrier UAV, one end of the retracting rope is passed through the ring hole of the connecting ring, and the other end is passed through the mesh hole at the edge of the capturing net along the edge of the capturing net, the self-detaching mechanism is used to open the capturing net when connected and to cooperate with the above-mentioned retracting rope to tighten the capturing net when falling off.

[0007] In the above-mentioned net-catching UAV countermeasure device, the connecting mechanism also includes a support rod, the middle part of the support rod is fixedly installed and connected to the bottom of the body of the carrier UAV through a connecting block, and the connecting ring is fixedly installed on the connecting block or the support rod.

[0008] In the above-mentioned net-catching drone countermeasure device, the self-detachment mechanism includes a first magnet assembly and a second magnet assembly, the first magnet assembly includes magnet one and magnet two that attract oppositely charged magnets, the second magnet assembly includes magnet three and magnet four that attract oppositely charged magnets, the magnet one and magnet three are respectively fixedly connected to the two ends of the above-mentioned support rod through mounting seats, and the magnet two and magnet four are respectively fixedly connected to the two edges of the capture net.

[0009] In the above-mentioned net-catching type UAV countermeasure device, the distance between the magnet one and the magnet three is greater than the overall body width of the carrier UAV.

[0010] In the above-mentioned net-capture type drone countermeasure device, when the magnet one is attracted to the magnet two, and the magnet three is attracted to the magnet four, the capture net is in an open state to form four sides, and the capture net forms an upper side between the magnet two and the magnet four, and the lower side is opposite to the upper side. One end of the above-mentioned contraction rope is passed through the ring hole of the connecting ring, and the other end is passed through the mesh holes of the other three sides of the capture net except the upper side to form a loop. The contraction rope can slide back and forth in the ring hole of the connecting ring, and the other three sides of the capture net except the upper side can also slide back and forth along the contraction rope.

[0011] In the above-mentioned net-catching drone countermeasure device, the length of the upper side is greater than or equal to the distance between the above-mentioned magnet one and magnet three.

[0012] In the above-mentioned net-capture type UAV countermeasure device, the length of the upper side is smaller than the length of the lower side, and the capture net is in the shape of an isosceles trapezoid when opened.

[0013] In the above-mentioned net-catching type UAV countermeasure device, a counterweight strip is fixedly connected to the lower side.

[0014] In the above-mentioned net-catching type UAV countermeasure device, a counterweight block is fixedly connected to the middle part of the upper side, and a magnet five is installed on the above-mentioned connecting ring. The counterweight block is a metal block and can be adsorbed by the magnet five.

[0015] In the above-mentioned net-catching UAV countermeasure device, the carrier UAV is equipped with a GPS for detecting the flight parameters of the carrier UAV, and the flight parameters include the flight altitude and the flight distance.

[0016] One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages: 1. Due to the use of the connection ring, the connection mechanism of the contraction rope and the self-detachment mechanism and the technology of matching with the capture net The technical means, therefore, effectively solves the technical problem in the prior art that hovering drones and drones moving at medium and low speeds cannot be captured online and smoothly and successfully carried for recovery, thereby achieving the technical effect of being able to capture hovering drones and drones moving at medium and low speeds online and smoothly and successfully carried for recovery.

[0017] 2. The overall structure is simple. It only needs a retractable rope, a support rod, a connecting ring, a magnet and other small parts based on the original carrier drone and the capture net. The structure is simple and the cost is low. The overall structure is light in weight. It can be used on small and medium-sized drones to capture hovering drones and medium and low-speed moving drones. Due to the light weight of the overall structure, the hovering drones and medium and low-speed moving drones are also within the load range that the carrier drone can bear after being captured on the net, so that the captured hovering drones and medium and low-speed moving drones can be captured and carried for recovery.

[0018] 3. The capture success rate is high and efficient. Before capture, the self-detachment mechanism is connected and the capture net is in an unfolded state. The unfolded area is much larger than the area of ​​the hovering drone and the medium and low-speed moving drone to be captured, which is convenient for capture. After capture, the self-detachment mechanism falls off, and the middle part of the upper end of the retraction rope is suspended on the connecting ring. The unfolded capture net falls down under the action of its own gravity and the gravity of the counterweight strip. At the same time, under the action of the retraction rope, the edges of the capture net are tightened along the retraction rope to trap the hovering drone and the medium and low-speed moving drone. At the same time, the hovering drone is used to capture the drone. The propeller torque of the rotating drone and medium and low-speed mobile drones can be used to better wrap and fix them on the capture net, thereby achieving efficient capture and improving the capture success rate; at the same time, the counterweight strips, counterweight blocks and retractable ropes can move back and forth on the connecting ring to adjust the position of the capture net relative to the connecting ring, so that the center of gravity of the capture net structure including the capture net, counterweight strips and counterweight blocks located below the carrier drone can always be quickly adjusted to directly below the carrier drone, preventing the carrier drone from losing control due to the shift of the center of gravity, thereby ensuring that it can be carried and recovered smoothly and successfully. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of the capture net of the net-capture type UAV countermeasure device when it is unfolded.

[0020] Figure 2 yes Figure 1 Enlarged view of point A in the middle.

[0021] In the figure, 1. carrier drone; 2. capture net; 3. connecting ring; 4. retractable rope; 5. support rod; 6. connecting block; 7. magnet one; 8. magnet two; 9. magnet three; 10. magnet four; 11. mounting seat; 12. counterweight strip; 13. counterweight block; 14. magnet five. DETAILED DESCRIPTION

[0022] The embodiments of the present application provide a net-capture type drone countermeasure device, which solves the technical problem in the prior art that hovering drones and drones moving at medium and low speeds cannot be captured online and smoothly and successfully carried back for recovery, thereby achieving the technical effect of being able to capture hovering drones and drones moving at medium and low speeds online and smoothly and successfully carried back for recovery.

[0023] The technical solution in the embodiment of the present application is to solve the above-mentioned technical problem of not being able to smoothly and successfully carry and recover, and the overall idea is as follows: A net capturing device is installed below the body of the carrier UAV 1, the net capturing device includes a connecting mechanism, a self-detaching mechanism and a capturing net 2, the connecting mechanism includes a connecting ring 3 and a retracting rope 4, the connecting ring 3 is located directly below the body of the carrier UAV 1 (directly below the body of the carrier UAV 1 is directly below the center of gravity of the overall structure of the carrier UAV 1, and is uniformly expressed as directly below the body of the carrier UAV 1 below), one end of the retracting rope 4 is passed through the ring hole of the connecting ring 3, and the other end is passed through the mesh hole at the edge of the capturing net 2 along the edge of the capturing net 2, the self-detaching mechanism is used to open the capturing net 2 when connected and to cooperate with the above-mentioned retracting rope 4 to tighten the capturing net 2 when falling off.

[0024] Before capture, the self-detaching mechanism is connected and the capture net 2 is in an unfolded state. The unfolded area is much larger than the area of ​​the hovering UAV and the medium and low-speed moving UAV to be captured, which is convenient for capture; after capture, the self-detaching mechanism falls off, and the middle part of the upper end of the retracting rope 4 is suspended on the connecting ring 3. The unfolded capture net 2 falls downward under the action of its own gravity and the like. At the same time, under the action of the retracting rope 4, the edges of the capture net 2 are tightened and contracted along the retracting rope 4 to net and trap the hovering UAV and the medium and low-speed moving UAV. At the same time, the propeller torque of the hovering UAV and the medium and low-speed moving UAV is used to better wrap and fix them on the capture net 2, so as to achieve efficient capture and improve the capture success rate; at the same time, the center of gravity of the net capture device located below the carrier UAV 1 can always be quickly adjusted to the bottom of the carrier UAV 1, so as to prevent the carrier UAV 1 from losing control due to the center of gravity shift, thereby ensuring that it can be carried and recovered smoothly and successfully.

[0025] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0026] Embodiment 1 like Figure 1 and 2 As shown, a net-catching type UAV countermeasure device is provided, comprising a carrier UAV 1, and a net-catching device installed under the body of the carrier UAV 1, the net-catching device comprising a connecting mechanism, a self-detaching mechanism and a capturing net 2, the connecting mechanism comprising a connecting ring 3, a retracting rope 4 and a supporting rod 5, the middle part of the supporting rod 5 is fixedly installed and connected to the underside of the body of the carrier UAV 1 through a connecting block 6, the connecting ring 3 is fixedly installed on the connecting block 6 or the supporting rod 5, the connecting ring 3 is located directly under the body of the carrier UAV 1, one end of the retracting rope 4 is passed through the ring hole of the connecting ring 3, and the other end is passed through the mesh hole at the edge of the capturing net 2 along the edge of the capturing net 2, the self-detaching mechanism has two states, a connecting state and a detaching state, the capturing net 2 is opened in the connecting state, and the capturing net 2 is tightened in cooperation with the retracting rope 4 in the detaching state.

[0027] Specifically, the self-detaching mechanism includes a first magnet assembly and a second magnet assembly, the first magnet assembly includes magnet 1 7 and magnet 2 8 that attract oppositely charged magnets, the second magnet assembly includes magnet 3 9 and magnet 4 10 that attract oppositely charged magnets, magnet 1 7 and magnet 3 9 are respectively fixedly connected to the two ends of the support rod 5 through a mounting seat 11, and magnet 2 8 and magnet 4 10 are respectively fixedly connected to the two edges of the capture net 2. The distance between magnet 1 7 and magnet 3 9 is greater than the overall body width of the carrier drone 1. When magnet one 7 is attracted to magnet two 8, and magnet three 9 is attracted to magnet four 10, the capture net 2 is in an open state, that is, the self-detaching mechanism is in a connected state, and the capture net 2 forms four sides. The capture net 2 forms an upper side between magnet two 8 and magnet four 10, and the lower side is opposite to the upper side. One end of the contraction rope 4 is passed through the ring hole of the connecting ring 3, and the other end is passed through the mesh holes of the other three sides of the capture net 2 except the upper side to form a loop. The contraction rope 4 can slide back and forth in the ring hole of the connecting ring 3, and the other three sides of the capture net 2 except the upper side can also slide back and forth along the contraction rope 4. The length of the upper side is greater than or equal to the distance between magnet one 7 and magnet three 9; the length of the upper side is less than the length of the lower side, and the capture net 2 is in the shape of an isosceles trapezoid when opened; combined with the fact that the distance between magnet one 7 and magnet three 9 is greater than the overall body width of the carrier UAV 1, the structural design of the capture net 2 makes it possible for the capture net 2 to be deployed in an area much larger than the area of ​​the hovering UAV and the medium and low-speed moving UAV to be captured, and is narrow at the top and wide at the bottom, making it easier to capture and thus increasing the success rate of capture.

[0028] Specifically, before capturing, the self-detaching mechanism is connected, and the capturing net 2 is in an unfolded state. Since a counterweight strip 12 is fixedly connected to the lower side, the counterweight strip 12 is used to maintain the posture of the capturing net 2 during flight to prevent the capturing net 2 from floating and swinging due to the maneuvering of the carrier UAV 1 or the influence of wind in the air. At the same time, under the action of the own gravity of the counterweight strip 12, the capturing net 2 is always stretched to an unfolded state during the flight of the carrier UAV 1, and at the same time, combined with the retraction rope 4 sliding back and forth in the ring hole of the connecting ring 3 and the capturing net 2 being able to slide relative to the retraction rope 4, the center of gravity of the capturing net 2 and the counterweight strip 12 is always directly below the carrier UAV 1, preventing the carrier UAV 1 from losing control during flight due to the shift of the center of gravity, thereby achieving a stable flight for capturing. The carrier UAV 1 is equipped with a GPS for detecting the flight parameters of the carrier UAV 1, including the flight altitude and the flight distance. The carrier UAV 1 is launched with the capture net 2. After the target is found by using a handheld detector, the carrier UAV 1 is operated to fly to the vicinity of the target UAV according to the target information, and the search is carried out through the first-person perspective (FPV). After the target is found, the carrier UAV 1 is operated to approach the top of the target to capture it. After the capture is completed, the carrier UAV 1 is accelerated to detach, ensuring that the self-detachment mechanism of the net capture device falls off, the target UAV is netted, and then it returns to land. The handheld detector is used to detect the position, altitude, distance and other information of the illegal UAV. The first-person perspective (FPV) is a wearable VR glasses display image and the height, distance, speed, load and other information of the net-captured UAV. After the target is found and captured, the self-detaching mechanism falls off. When the capture net 2 catches the hovering UAV and the medium and low-speed mobile UAV, the high-speed rotation of the propellers of the hovering UAV and the medium and low-speed mobile UAV generates torque on the capture net 2 to overcome the magnetic adsorption force between magnet 2 8 and magnet 1 7 and magnet 4 10 and magnet 3 9, so that magnet 2 8 falls off from magnet 1 7, magnet 4 10 falls off from magnet 3 9, and the self-detaching mechanism falls off. At this time, the middle part of the upper end of the retracting rope 4 is suspended on the connecting ring 3, and the unfolded capture net 2 falls downward under the action of its own gravity and the gravity of the counterweight strip 12. The counterweight strip 12 is flexible, and at the same time, under the action of the retracting rope 4, the edges of the capture net 2 are tightened and contracted along the retracting rope 4 to trap the hovering UAV and the medium and low-speed mobile UAV, and at the same time, the propeller torque of the hovering UAV and the medium and low-speed mobile UAV is used to better wrap and fix them on the capture net 2, so as to achieve efficient capture and improve the capture success rate.

[0029] At the same time, the counterweight strip 12 and the retractable rope 4 can move back and forth on the connecting ring 3 to adjust the position of the capture net 2 relative to the connecting ring 3, so that the center of gravity of the capture net 2 structure including the capture net 2 and the counterweight strip 12 located below the carrier drone 1 can always be quickly adjusted to directly below the carrier drone 1, preventing the carrier drone 1 from losing control due to the shift of the center of gravity, thereby ensuring that it can be carried and recovered smoothly and successfully.

[0030] In order to reduce the large swing of the capture net 2 due to inertia after the target is captured, a counterweight 13 is fixedly connected to the middle of the upper side of the capture net 2, and a magnet 5 14 is installed on the connecting ring 3. The counterweight 13 is a metal block that can be adsorbed by the magnet 5 14. Before capture, the counterweight 13 is adsorbed and fixedly connected to the connecting ring 3 by the magnet 5 14. After capture, under the action of the propeller torque of the hovering drone and the medium and low speed mobile drone, the counterweight 13 is also separated from the magnet 5 14, and falls together with the capture net 2, and is located directly below the carrier drone 1 together with the capture net 2 and the counterweight strip 12. The setting of the counterweight 13 is used to reduce the large swing of the capture net 2 due to inertia after the target is captured.

[0031] The technical solutions in the above embodiments of the present application have at least the following technical effects or advantages: 1. The overall structure is simple. It only needs a retractable rope 4, a support rod 5, a connecting ring 3, a magnet and other small parts on the basis of the original carrier drone 1 and the capture net 2. The structure is simple and the cost is low. The overall structure is light in weight. It can be used on small and medium-sized drones to capture hovering drones and medium- and low-speed moving drones. Due to the light weight of the overall structure, the hovering drones and medium- and low-speed moving drones are also within the load range that the carrier drone 1 can bear after being captured on the net, so that the captured hovering drones and medium- and low-speed moving drones can be captured and carried for recovery.

[0032] 2. The capture success rate is high and efficient, and the counterweight strip 12, the counterweight block 13 and the retractable rope 4 can move back and forth on the connecting ring 3 to adjust the position of the capture net 2 relative to the connecting ring 3, so that the center of gravity of the capture net 2 structure including the capture net 2, the counterweight strip 12 and the counterweight block 13 located below the carrier drone 1 can always be quickly adjusted to the bottom of the carrier drone 1, preventing the carrier drone 1 from losing control due to the shift of the center of gravity, thereby ensuring that it can be carried and recovered smoothly and successfully.

[0033] Embodiment 2 The connecting mechanism may also only include the connecting ring 3 and the retractable rope 4, without the supporting rod 5 and the connecting block 6 structure, the connecting ring 3 is directly fixed to the body of the carrier drone 1, and the magnet 1 7 and the magnet 3 9 are directly fixed to the carrier drone 1. The other structures are the same as those in the first embodiment and will not be described in detail.

[0034] The technical solutions in the above embodiments of the present application have at least the following technical effects or advantages: The structure is simpler and the cost is lower.

[0035] Embodiment 3 There is no counterweight 13 fixedly connected to the middle part of the upper side of the capture net 2, and other structures are the same as those in the first embodiment and will not be described in detail.

[0036] The technical solutions in the above embodiments of the present application have at least the following technical effects or advantages: The overall structure is lighter.

[0037] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0038] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A net-catching drone countermeasure device, comprising a carrier drone (1), characterized in that: The invention also comprises a net-catching device installed below the body of the carrier UAV (1), the net-catching device comprising a connecting mechanism, a self-detaching mechanism and a catching net (2), the connecting mechanism comprising a connecting ring (3) and a retracting rope (4), the connecting ring (3) being located directly below the body of the carrier UAV (1), one end of the retracting rope (4) being passed through a ring hole of the connecting ring (3), and the other end of the retracting rope (4) being passed through a mesh hole at the edge of the catching net (2) along the edge of the catching net (2), the self-detaching mechanism being used to open the catching net (2) when connected and to cooperate with the retracting rope (4) to tighten the catching net (2) when detached.

2. A net-catching drone countermeasure device as claimed in claim 1, characterized in that: The connection mechanism further comprises a support rod (5), the middle portion of the support rod (5) being fixedly mounted and connected to the lower part of the body of the carrier UAV (1) via a connection block (6), and the connection ring (3) being fixedly mounted on the connection block (6) or the support rod (5).

3. A net-catching drone countermeasure device as claimed in claim 2, characterized in that: The self-detaching mechanism comprises a first magnet assembly and a second magnet assembly, wherein the first magnet assembly comprises a magnet 1 (7) and a magnet 2 (8) with opposite polarities attracting each other, and the second magnet assembly comprises a magnet 3 (9) and a magnet 4 (10) with opposite polarities attracting each other, wherein the magnet 1 (7) and the magnet 3 (9) are respectively fixedly connected to the two ends of the support rod (5) through a mounting seat (11), and the magnet 2 (8) and the magnet 4 (10) are respectively fixedly connected to the two edges of the capture net (2).

4. A net-catching drone countermeasure device as claimed in claim 3, characterized in that: The distance between the first magnet (7) and the third magnet (9) is greater than the overall width of the carrier drone (1).

5. A net-catching drone countermeasure device as claimed in claim 3 or 4, characterized in that: When the magnet 1 (7) and the magnet 2 (8) are attracted to each other, and the magnet 3 (9) and the magnet 4 (10) are attracted to each other, the capture net (2) is in an open state to form four sides. The capture net (2) forms an upper side between the magnet 2 (8) and the magnet 4 (10), and the lower side is opposite to the upper side. One end of the contraction rope (4) is passed through the ring hole of the connecting ring (3), and the other end is passed through the mesh holes of the other three sides of the capture net (2) except the upper side to form a loop. The contraction rope (4) can slide back and forth in the ring hole of the connecting ring (3), and the other three sides of the capture net (2) except the upper side can also slide back and forth along the contraction rope (4).

6. The net-catching drone countermeasure device according to claim 5, characterized in that: The length of the upper side is greater than or equal to the distance between the magnet one (7) and the magnet three (9).

7. The net-catching drone countermeasure device according to claim 5, characterized in that: The length of the upper side is smaller than the length of the lower side, and the capture net (2) is in the shape of an isosceles trapezoid when opened.

8. The net-catching drone countermeasure device according to claim 5, characterized in that: A counterweight strip (12) is fixedly connected to the lower edge.

9. The net-catching drone countermeasure device according to claim 5, characterized in that: A counterweight block (13) is fixedly connected to the middle portion of the upper side, and a magnet five (14) is mounted on the connecting ring (3). The counterweight block (13) is a metal block that can be adsorbed by the magnet five (14).

10. The net-catching drone countermeasure device according to claim 1, characterized in that: The carrier UAV (1) is equipped with a GPS for detecting flight parameters of the carrier UAV (1), wherein the flight parameters include flight altitude and flight distance.

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