Unmanned aerial vehicle defense system based on ventilation wall

Abstract

The utility model discloses an unmanned aerial vehicle defense system based on a ventilation wall, and the system comprises an unmanned aerial vehicle reconnaissance module which is used for detecting an unmanned aerial vehicle and generating a detection signal; an unmanned aerial vehicle trajectory prediction module which is in communication connection with the unmanned aerial vehicle reconnaissance module and is used for receiving the detection signal and predicting an unmanned aerial vehicle trajectory according to the detection signal; and the ventilation wall control module comprises a ventilation wall forming unit, and the ventilation wall control module is in communication connection with the unmanned aerial vehicle trajectory prediction module and is used for controlling the ventilation wall forming unit to form a ventilation wall according to the trajectory of the unmanned aerial vehicle so as to perform interference defense on the unmanned aerial vehicle. According to the unmanned aerial vehicle defense system based on the ventilation wall, the ventilation wall control module can be used for jetting to generate strong airflow and form an airflow barrier, namely the stable ventilation wall, so that stable wind power is formed to resist the unmanned aerial vehicle, the flight stability of the unmanned aerial vehicle is further disturbed, and the aim of intercepting or forcing the unmanned aerial vehicle to land is achieved; therefore, the defense stability and reliability of the unmanned aerial vehicle are ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to an unmanned plane defense technical field, concretely relates to an unmanned plane defense system based on wind wall. BACKGROUND

[0002] With the vigorous development of unmanned plane technology, in some key areas, the unreported flying unmanned plane (namely black flying) needs to be counteracted. In order to guarantee the safe operation of society, usually, passive detection equipment is utilized to carry out large area coverage, and then a variety of types of counteracting equipment are fused to carry out accurate management and control to the upper space of high risk key targets and personnel intensive places.

[0003] The current unmanned plane defense system mainly has the functions of unmanned plane detection, tracking and identification, and can take corresponding measures to cope with the threat of unmanned plane, and the main technical principles involved are missile interception, electronic interference, laser destruction, photoelectric countermeasure, infrared defense and the like. These defense methods need precise transmission and intelligent disposal of data between equipment, have high identification efficiency and strong defense capability, and are usually suitable for occasions with high unmanned plane defense level requirements. However, in general level unmanned plane detection and prevention scenes, it is difficult to popularize due to high cost and high price.

[0004] Wind is one of the most important environmental factors when the unmanned plane is flying, and can be considered as the main influencing factor of the flight trajectory and flight attitude of the unmanned plane. High-speed airflow acts on the wings, fuselage or rotors of the unmanned plane, thereby changing the original aerodynamic force distribution, and further causing the attitude and trajectory of the unmanned plane to be out of control. Continuous airflow impact can disturb the stability of the unmanned plane flight control system, making the automatic balance algorithm invalid; at the same time, strong lateral or longitudinal airflow can directly push the unmanned plane away from the target area, forcing it to exit the defense airspace. However, the wind in nature is difficult to be applied to the systematic defense of the unmanned plane due to its own instability, therefore, how to provide a stable unmanned plane defense system based on wind wall to effectively defend the unmanned plane by wind power is a technical problem to be solved by those skilled in the art. UTILITY MODEL CONTENT

[0005] The utility model embodiment provides a kind of unmanned plane defense system based on wind wall, to realize unmanned plane defense by wind power, improve the stability and reliability of unmanned plane defense.

[0006] The utility model embodiment provides a kind of unmanned plane defense system based on wind wall, comprising:

[0007] The unmanned plane reconnaissance module is used to detect the unmanned plane and generate a detection signal.

[0008] The UAV trajectory prediction module is in communication connection with the UAV reconnaissance module, configured to receive the detection signal and predict the UAV trajectory according to the detection signal.

[0009] The wind wall control module comprises a wind wall forming unit, and is in communication connection with the UAV trajectory prediction module, configured to control the wind wall forming unit to form a wind wall according to the UAV trajectory, so as to interfere with the UAV for defense.

[0010] Further, the radio countermeasure system is in communication connection with the UAV trajectory prediction module and the wind wall control module respectively.

[0011] Further, the wind wall control module further comprises a fan unit connected with the wind wall forming unit, and the fan unit is configured to provide wind power for the wind wall forming unit.

[0012] Further, the wind wall forming unit comprises a plurality of geometrically distributed air gun arrays, and each air gun array comprises a plurality of air guns.

[0013] Further, the air gun is sequentially provided with an air inlet, an air conveying pipe and an air outlet along the wind power conveying direction.

[0014] Further, the air conveying pipe comprises a first air conveying pipe arranged close to the air inlet and a second air conveying pipe arranged close to the air outlet, and a gas storage bin is arranged between the first air conveying pipe and the second air conveying pipe.

[0015] Further, a first control valve is arranged between the first air conveying pipe and the gas storage bin, and a second control valve is arranged between the second air conveying pipe and the gas storage bin.

[0016] Further, the gas storage bin is connected with a compression member, and the compression member is configured to compress the gas in the gas storage bin.

[0017] Further, the cross-sectional area of the air inlet is greater than the cross-sectional area of the air outlet.

[0018] Further, the first air conveying pipe and the second air conveying pipe are both cylindrical hollow structures, the cross-sectional area of the first air conveying pipe is greater than or equal to the cross-sectional area of the second air conveying pipe, and the length of the first air conveying pipe is greater than the length of the second air conveying pipe.

[0019] The utility model embodiment provides a kind of unmanned aerial vehicle defense system based on wind wall, comprising: unmanned aerial vehicle reconnaissance module, for detecting unmanned aerial vehicle, and generating detection signal;Unmanned aerial vehicle trajectory prediction module is connected with the unmanned aerial vehicle reconnaissance module communication, for receiving the detection signal and according to the detection signal prediction unmanned aerial vehicle trajectory;Wind wall control module, including wind wall formation unit, the wind wall control module is connected with the unmanned aerial vehicle trajectory prediction module communication, for according to unmanned aerial vehicle trajectory control the wind wall formation unit forms wind wall, to interfere with unmanned aerial vehicle defense.The utility model embodiment provides a kind of unmanned aerial vehicle defense system based on wind wall, can utilize wind wall control module to spray generation strong airflow, form airflow barrier, namely stable wind wall, to form stable wind to resist unmanned aerial vehicle, and then interfere with the flight stability of unmanned aerial vehicle, to reach the purpose of interception or force it to land, thereby guarantee the stability and reliability of unmanned aerial vehicle defense. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical scheme of the utility model embodiment, the following will be briefly introduced the drawings needed to be used in embodiment description, obviously, the drawings in the following description are some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0021] Figure 1 The structure diagram of the unmanned aerial vehicle defense system based on wind wall provided by the utility model embodiment is shown in the figure.

[0022] Figure 2 The structure diagram of the air gun in the unmanned aerial vehicle defense system based on wind wall provided by the utility model embodiment is shown in the figure. DETAILED DESCRIPTION

[0023] The technical scheme in the utility model embodiment will be described clearly and completely in the following by combining with the drawings in the utility model embodiment, obviously, the described embodiment is a part of the embodiment of the utility model, rather than all the embodiments. Based on the embodiment in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0024] It should be understood that, when using in the specification and the appended claims, the terms "include" and "contain" indicate the existence of the described features, whole, step, operation, element and / or component, but do not exclude the existence or addition of one or more other features, whole, step, operation, element, component and / or its set.

[0025] It should also be understood that the terms used in the description of the present application are for the purpose of describing particular embodiments and do not intend to limit the present application. As used in the description of the present application and the appended claims, the singular forms "a", "an" and "the" are intended to include the plural forms unless the context clearly indicates otherwise.

[0026] It should be further understood that the term "and / or" used in the description of the present application and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes these combinations.

[0027] Please see Figure 1 The unmanned aerial vehicle defense system based on a wind wall provided by the embodiment of the present application comprises:

[0028] The unmanned aerial vehicle reconnaissance module 1 is used for detecting unmanned aerial vehicles and generating detection signals;

[0029] The unmanned aerial vehicle trajectory prediction module 2 is in communication connection with the unmanned aerial vehicle reconnaissance module and is used for receiving the detection signals and predicting the trajectories of unmanned aerial vehicles according to the detection signals;

[0030] The wind wall control module comprises a wind wall forming unit 3, and the wind wall control module is in communication connection with the unmanned aerial vehicle trajectory prediction module 2 and is used for controlling the wind wall forming unit 3 to form a wind wall according to the trajectories of unmanned aerial vehicles, so as to interfere with the unmanned aerial vehicles.

[0031] In the embodiment, the unmanned aerial vehicle defense system based on a wind wall specifically comprises the unmanned aerial vehicle reconnaissance module 1, the unmanned aerial vehicle trajectory prediction module 2 and the wind wall control module. The unmanned aerial vehicle reconnaissance module 1, such as a reconnaissance device of a radar, is mainly used for detecting the positions, trajectories and flight parameters of target unmanned aerial vehicles in real time and generating corresponding detection signals; the unmanned aerial vehicle trajectory prediction module 2 is used for calculating the future flight paths of target unmanned aerial vehicles by using an algorithm processing module carried by itself according to the detection signals transmitted by the unmanned aerial vehicle reconnaissance module 1 and outputting a prediction result; and the wind wall control module is used for controlling the angle and action of the wind wall forming unit 3 according to the prediction result of the unmanned aerial vehicle trajectory prediction module 2, so as to form an effective wind wall and interfere with the target unmanned aerial vehicles through the wind wall.

[0032] The unmanned aerial vehicle defense system based on a wind wall provided by the embodiment can use the wind wall control module to spray strong air flow to form an air flow barrier, that is, a stable wind wall, so as to form stable wind force to resist the unmanned aerial vehicles and further interfere with the flight stability of the unmanned aerial vehicles, so as to achieve the purpose of intercepting or forcing the unmanned aerial vehicles to land, thereby ensuring the stability and reliability of the unmanned aerial vehicle defense.

[0033] In an embodiment, the UAV defense system further comprises a radio countermeasure system, which is in communication connection with the UAV trajectory prediction module 2 and the wind wall control module, respectively.

[0034] In addition to forming a wind wall through the wind wall forming unit 3, the embodiment can also use the wind wall control module in cooperation with the radio countermeasure system to form a nested defense system, so as to more accurately and efficiently limit the communication and flight of the target UAV through both wind wall defense and electronic countermeasures, thereby enhancing the overall defense effect.

[0035] In an embodiment, the wind wall control module further comprises a fan unit 4 connected with the wind wall forming unit 3, which is used to provide wind power for the wind wall forming unit 3.

[0036] The fan unit 4 is the power source of the air wall defense, which can activate its control system according to the prediction results provided by the UAV trajectory prediction module, and the control system adjusts the wind power and outputs according to the actual needs. In actual application, the fan unit 4 can contain multiple fans, and the number of fans to be started can be selected according to actual needs when wind power is needed.

[0037] In an embodiment, the wind wall forming unit 3 comprises a plurality of geometrically distributed air gun arrays, and each air gun array contains a plurality of air guns.

[0038] The wind wall forming unit 3 is the core component of the UAV defense system in the embodiment, which is connected with the fan unit 4 through multiple air gun arrays to form a stable wind wall by supplying power through the wind path, thereby realizing the interference to the target UAV. The angle and action of the air gun are controlled in real time by the UAV trajectory prediction unit to form an effective wind wall to interfere with the target UAV.

[0039] The air gun array refers to arranging the air gun devices according to certain geometric distribution rules, such as ring-shaped, grid-shaped or longitudinal and transverse interlaced distribution, to realize seamless coverage of pneumatic interference. By adjusting the large elevation and large depression angle of the air gun / air gun array, the air flow is covered in all directions, thereby constructing an omnidirectional UAV defense effect. Specifically, for the UAV flying at low altitude (here, the low altitude is 40-100 meters, and the ultra-low altitude is below 40 meters), by adjusting the start-stop timing and jet intensity of each air gun in the array, a strong air flow is formed for vertical jetting, thereby forming a dynamically superimposed air flow interference area in the defense airspace to interfere with the flight attitude and stability of the UAV in the area, which can improve the capture probability and interception effect of the UAV; for the UAV flying at ultra-low altitude, the angle of the air gun is tilted to make the high-speed air flow jetted by the air gun interfere with the UAV laterally and make it deviate from the set trajectory.

[0040] In specific embodiments, as shown in Figure 2 The air gun is sequentially provided with an air inlet 31, an air conveying pipe and an air outlet 33 along the wind conveying direction.

[0041] The air conveying pipe includes a first air conveying pipe 321 arranged close to the air inlet 31 and a second air conveying pipe 322 arranged close to the air outlet 33, and a gas storage bin 34 is arranged between the first air conveying pipe 321 and the second air conveying pipe 322.

[0042] In the embodiment, the wind wall forming unit 3 is provided with the gas storage bin 34 in addition to the air inlet 31, the air conveying pipe and the air outlet 33, and the air conveying pipe includes the first air conveying pipe 321 and the second air conveying pipe 322, wherein the first air conveying pipe 321 is connected between the air inlet 31 and the air inlet side of the gas storage bin 34, and the second air conveying pipe 322 is connected between the air outlet side of the gas storage bin 34 and the air outlet 33. The gas storage bin 34 is used for storing compressed air or other gas, and the gas storage bin 34 can be made of high-strength alloy or steel, so that the gas storage bin 34 can withstand the instantaneous impact of the airflow under high pressure, thereby improving the stability and reliability of the defense of the unmanned aerial vehicle.

[0043] Further, a first control valve 351 is arranged between the first air conveying pipe 321 and the gas storage bin 34, and a second control valve 352 is arranged between the second air conveying pipe 322 and the gas storage bin 34.

[0044] The first control valve 351 is arranged on the air inlet side of the gas storage bin 34 to control the input speed and storage amount of the airflow, and the second control valve 352 is arranged on the air outlet side of the gas storage bin 34 to control the release amount and release speed of the compressed gas. In actual application scenarios, a needle valve or a ball valve can be used as the first control valve 351 and the second control valve 352, and the needle valve or the ball valve can be used for gas pressure adjustment of the air conveying pipe and the gas storage bin 34.

[0045] In addition, the gas storage bin 34 is connected with a compression member 36, and the compression member 36 is used for compressing the gas in the gas storage bin 34.

[0046] The compression member 36, such as a compression pump, is used to compress the gas in the gas storage bin 34, so that the airflow in the air gun has a certain pressure and release speed. In actual application scenarios, the compression mode can include automatic and manual. The compression member 36 can be arranged above the gas storage bin 34, and the automatic compression member can automatically compress the gas, and the manual compression member needs to be manually operated to compress the gas.

[0047] In some preferred embodiments, the cross-sectional area of the air inlet 31 is greater than the cross-sectional area of the air outlet 33.

[0048] The cross-sectional area of the air inlet 31 is greater than the cross-sectional area of the air outlet 33, which is conducive to reducing the consumption of the airflow generated by the fan unit 4 at the air inlet 31, thereby ensuring that the airflow enters the first air conveying pipe 321 at the maximum speed. Further, by simultaneously controlling the pressure and the speed of the airflow at the air outlet 33, the defense effect of the air wall formed at the target position on the UAV can be further improved.

[0049] In some other preferred embodiments, the first air conveying pipe 321 and the second air conveying pipe 322 are both cylindrical hollow structures, the cross-sectional area of the first air conveying pipe 321 is greater than or equal to the cross-sectional area of the second air conveying pipe 322, and the length of the first air conveying pipe 321 is greater than the length of the second air conveying pipe 322.

[0050] The first air conveying pipe 321 and the second air conveying pipe 322 are both designed as cylindrical hollow structures with smooth inner walls, and the cross-sectional area of the first air conveying pipe 321 is set to be greater than or equal to the cross-sectional area of the second air conveying pipe 322, which can facilitate the entry and circulation of the airflow. In addition, the diameter and the length of the second air conveying pipe 322 and the air outlet 33 will have a certain influence on the speed and the pressure of the ejected airflow, and therefore the length of the second air conveying pipe 322 is set to be less than the length of the first air conveying pipe 321, so as to reduce the consumption of the airflow at the second air conveying pipe 322, thereby ensuring that the compressed gas can quickly reach the air outlet 33 after leaving the gas storage bin 34 and maintain the target pressure and speed at the air outlet 33, which can further improve the defense effect on the UAV. The diameter of the portion of the first air conveying pipe 321 close to the gas storage bin 34 can be designed to gradually decrease from large to small, and the diameter of the portion of the second air conveying pipe 322 close to the gas storage bin 34 can be designed to gradually increase from small to large, which is conducive to the smooth flow of the gas in the air conveying pipes and reduces the resistance of the gas when changing the pipes. When the gas flows from the first air conveying pipe 321 into the gas storage bin 34, the gradually decreasing diameter of the pipe can make the flow rate of the gas gradually increase, thereby enhancing the compression effect of the gas. When the gas flows from the gas storage bin 34 into the second air conveying pipe 322, the gradually increasing diameter of the pipe can make the flow rate of the gas gradually decrease, so that the gas can be output more stably, avoiding problems such as gas leakage or pipe damage caused by too high flow rate. Such design not only improves the efficiency of gas conveying, but also ensures the safety and stability of the entire gas conveying system.

[0051] In general, the air gun structure includes, in sequence according to the air flow direction, an air inlet 31, a first air conveying pipe 321, a first control valve 351, a gas storage bin 34, a compression member 36, a second control valve 352, a second air conveying pipe 322, and an air outlet 33. The air inlet 31 is connected to the fan unit 4, the fan unit 4 is started to generate air flow, the air flow enters the first air conveying pipe 321 through the air inlet 31, and the air flow forms a uniform strong air flow in the first air conveying pipe 321; when the first control valve 351 is opened, the air flow enters the gas storage bin 34, and forms a wind field with a certain pressure through the compression of the compression member 36, after reaching the target pressure, the second control valve 352 is opened, the high-pressure air flow reaches the target position through the second air conveying pipe 322 and the air outlet 33, and a stable strong wind wall structure is formed at the target position to defend the unmanned aerial vehicle. Preferably, the air inlet 31, the first air conveying pipe 321, the first control valve 351, the gas storage bin 34, the compression member 36, the second control valve 352, the second air conveying pipe 322, and the air outlet 33 in the air gun are integrally formed by the same material, thereby improving the air tightness and stability of the air gun.

[0052] It should be noted that the air gun in the prior art generally stores gas in a gas cylinder through a compression device, and drives a bullet to fly based on the compressed gas, which is a mechanical structure. The wind wall forming unit 3 in the embodiment is a device for transmitting and arranging wind power through the fan unit 4. The device transmits the wind generated by the fan unit 4 to a fixed position at a specific wind speed and pressure through its unique structure design, forms a continuous and stable strong wind wall, and realizes the defense against the unmanned aerial vehicle.

[0053] It should be further understood that for the unmanned aerial vehicle flying into a specific defense area, the wind wall formed by the unmanned aerial vehicle defense system can increase the air flow intensity through local reinforcement, continuously interfere with it at high intensity, and finally force it to land or fall; when multiple unmanned aerial vehicles attempt to enter the target airspace, the unmanned aerial vehicle defense system can realize global interference in multiple points and multiple directions through expanding the air flow coverage range and through the coordinated control of the arrayed air guns. In actual application scenarios, through the unmanned aerial vehicle defense system, according to the unmanned aerial vehicle trajectory prediction, the wind wall forming unit 3 close to the flight path is preferentially started, and the other areas remain in standby state; or the jetting area and jetting intensity of the wind wall are adjusted in real time in combination with the speed and direction information of the unmanned aerial vehicle, so as to ensure the defense effect on the premise of reducing unnecessary consumption.

[0054] The various embodiments described in the specification are presented for purposes of illustration and description. Each of the embodiments highlight a different aspect of the application. The embodiments are not mutually exclusive, and can be combined in various manners. The embodiments disclosed herein are not exhaustive of the ways in which the application can be practiced. Numerous modifications and adaptations will be apparent to those skilled in the art. The embodiments disclosed herein are merely exemplary in nature and are not intended to limit the scope of the application.

[0055] It should also be noted that the terms "first", "second", and the like, do not denote any order, quantity, combination, or importance, but rather are used to identify one element from another. Also, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises... a" does not, without more constraints, exclude the existence of additional identical elements in the process, method, article, or apparatus that comprises the element.

Claims

1. A wind wall based drone defense system, characterized in that, The application relates to a wind wall control system for unmanned aerial vehicle (UAV) defense. The system comprises: an UAV detection module for detecting UAVs and generating detection signals; an UAV trajectory prediction module in communication with the UAV detection module, for receiving the detection signals and predicting UAV trajectories based on the detection signals; 2. The wind wall based drone defense system of claim 1, wherein, a wind wall control module comprising a wind wall forming unit, the wind wall control module being in communication with the UAV trajectory prediction module, for controlling the wind wall forming unit to form a wind wall based on the UAV trajectories to interfere with the UAVs.

3. The wind wall based drone defense system of claim 1, wherein, The system further comprises a radio countermeasure system in communication with the UAV trajectory prediction module and the wind wall control module.

4. The wind wall based drone defense system of claim 1, wherein, The wind wall control module further comprises a fan unit in communication with the wind wall forming unit, the fan unit being configured to provide wind power for the wind wall forming unit.

5. The wind wall based drone defense system of claim 4, wherein, The wind wall forming unit comprises a plurality of geometrically distributed air gun arrays, and each air gun array comprises a plurality of air guns.

6. The wind wall based drone defense system of claim 5, wherein, The air guns are sequentially provided with an air inlet, an air conveying pipe and an air outlet along a wind conveying direction.

7. The wind wall based drone defense system of claim 6, wherein, The air conveying pipe comprises a first air conveying pipe arranged close to the air inlet and a second air conveying pipe arranged close to the air outlet, and a gas storage bin is arranged between the first air conveying pipe and the second air conveying pipe.

8. The wind wall based drone defense system of claim 6, wherein, A first control valve is arranged between the first air conveying pipe and the gas storage bin, and a second control valve is arranged between the second air conveying pipe and the gas storage bin.

9. The wind wall based drone defense system of claim 5, wherein, The gas storage bin is connected with a compression member configured to compress the gas in the gas storage bin.

10. The wind wall based drone defense system of claim 6, wherein, The cross-sectional area of the air inlet is greater than that of the air outlet. The first air conveying pipe and the second air conveying pipe are both cylindrical hollow structures, the cross-sectional area of the first air conveying pipe is greater than or equal to that of the second air conveying pipe, and the length of the first air conveying pipe is greater than that of the second air conveying pipe.

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