CN111637795A - Aerial anti-unmanned aerial vehicle trapping apparatus based on electromagnetic emission technique - Google Patents
Aerial anti-unmanned aerial vehicle trapping apparatus based on electromagnetic emission technique Download PDFInfo
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- CN111637795A CN111637795A CN201910157130.9A CN201910157130A CN111637795A CN 111637795 A CN111637795 A CN 111637795A CN 201910157130 A CN201910157130 A CN 201910157130A CN 111637795 A CN111637795 A CN 111637795A
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- unmanned aerial
- aerial vehicle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
- F41H11/00—Defence installations; Defence devices
- F41H11/02—Anti-aircraft or anti-guided missile or anti-torpedo defence installations or systems
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Abstract
The invention discloses an aerial anti-unmanned aerial vehicle capturing device based on an electromagnetic emission technology, which comprises a take-off and landing bracket, a connecting piece and a positioning mechanism, wherein the take-off and landing bracket is arranged on the upper portion of the aerial anti-unmanned aerial vehicle capturing device; the lifting support is fixed at the bottom of the unmanned aerial vehicle, the connecting piece is installed on the lifting support, and the positioning mechanism is fixed at the bottom of the unmanned aerial vehicle and is positioned in the lifting support; the catching device is arranged below the lifting bracket through a connecting piece; the catching device comprises a launching tube, a net storage barrel, a catching net and a circuit device, wherein the circuit device is arranged at the tail part inside the catching device, n launching tubes are arranged at the front end of the catching device, the rear ends of the launching tubes are connected with a positioning mechanism through connecting rods, the net storage barrel is arranged in the middle of the launching tube, and the catching net is arranged inside the net storage barrel. The device can effectively and accurately capture the target unmanned aerial vehicle.
Description
Technical Field
The invention relates to the technical field of anti-unmanned aerial vehicles, in particular to an aerial anti-unmanned aerial vehicle capturing device based on an electromagnetic emission technology.
Background
At present, anti-unmanned aerial vehicle means are numerous worldwide, but the general idea is three types of signal blocking, physical destroying and capturing.
The signal blocking class includes using an electron gun to perform signal interference on the drone or using a strong electronic signal to irradiate the target drone so that the target drone is out of control. The unmanned aerial vehicle has the advantages that the attack distance is long, the attack can be continuously started for multiple times, and the forced landing of the unmanned aerial vehicle is induced through electronic deception and interference, so that the unmanned aerial vehicle cannot be seriously injured. But blocking signals may cause interference to other unmanned aerial vehicles flying normally, and accurate striking is difficult to achieve.
The physical destruction class includes the use of laser guns or projectiles to destroy the target drone. Its advantages are high effect and long attack distance. However, the unmanned aerial vehicle has too strong breaking force, can cause irreversible serious damage to the unmanned aerial vehicle, and is mainly applied to the military field at present.
The catching type is to catch the target unmanned aerial vehicle by a shouldering launching device or an unmanned aerial vehicle launching platform launching catching net. Its advantage can not cause the injury to unmanned aerial vehicle, makes things convenient for the evidence to collect, mainly is applied to in the aspect of the civil unmanned aerial vehicle of countercheck at present.
Consider that the target is civilian unmanned aerial vehicle, hope to reach the counterwork effect and the signal blocks the comparatively complicated technique under the not impaired prerequisite of target unmanned aerial vehicle, the application cost is higher, consequently this project adopts the mode counterwork target of unmanned aerial vehicle platform transmission seizure net. The existing catching net mainly adopts gunpowder gas type and pneumatic type. The gunpowder gas type shot and catching net have far range, but the gunpowder has certain danger and is not high in controllability. The pneumatic type has the characteristics of simple structure, mature technology and wide application, but has the characteristic of poor controllability and is inconvenient to inflate.
Disclosure of Invention
The invention aims to provide an aerial anti-unmanned aerial vehicle capturing device based on an electromagnetic emission technology, which is used for capturing a target through an emission capturing net and carrying out non-destructive capture on an illegally-invaded unmanned aerial vehicle.
The technical solution for realizing the purpose of the invention is as follows: an aerial anti-unmanned aerial vehicle capture device based on an electromagnetic emission technology comprises a take-off and landing bracket, a connecting piece and a positioning mechanism;
the lifting support is fixed at the bottom of the unmanned aerial vehicle, the connecting piece is installed on the lifting support, and the positioning mechanism is fixed at the bottom of the unmanned aerial vehicle and is positioned in the lifting support; the catching device is arranged below the lifting bracket through a connecting piece; the catching device comprises a launching tube, a net storage barrel, a catching net and a circuit device, wherein the circuit device is arranged at the tail part inside the catching device, n launching tubes are arranged at the front end of the catching device, the rear ends of the launching tubes are connected with a positioning mechanism through connecting rods, the net storage barrel is arranged in the middle of the launching tube, and the catching net is arranged inside the net storage barrel.
Compared with the prior art, the invention has the following remarkable advantages: (1) the electromagnetic emission technology applied by the invention is very safe, the energy is mainly electric energy, a plurality of low-voltage storage batteries can meet the requirements of the device, the structure is various, and the emission process is safer; (2) the unmanned aerial vehicle target shooting device has strong controllability, can determine the distance of a target through the positioning mechanism, and achieves the purpose of controlling the strength of a magnetic field through regulating and controlling the current in the circuit through the circuit device, so that the initial shooting speed of the shot is regulated, and the target unmanned aerial vehicle is accurately captured; (3) the capacitor required by electromagnetic emission is simple to charge, the charging device is light, the aerial emission platform is convenient to carry, and the capacitor is hardly applied at present.
Drawings
Fig. 1 is a circuit diagram of the apparatus of the present invention.
Fig. 2 is a three-dimensional view of a launch tube.
Fig. 3 is a front view of the device of the present invention.
Fig. 4 is a side view of the device of the present invention.
Fig. 5 is a top view of the launching device (taking two launch tubes as an example).
Fig. 6 is an expanded side view of the capture net of the present invention.
Fig. 7 is an expanded front view of the capture net of the present invention.
Detailed Description
Firstly, a positioning mechanism carries out positioning and ranging on a target unmanned aerial vehicle, and the launching speed of a projectile is adjusted through a regulating and controlling circuit device; the electromagnetic launching technology is utilized to launch the metal bullet seeker to drive the capture net to effectively and accurately capture the target unmanned aerial vehicle; near the support 2 and the trapping apparatus 5 take off and land, several damping spring of evenly distributed effectively reduce emitter's recoil to unmanned aerial vehicle 1's influence, are favorable to unmanned aerial vehicle 1 smooth flight and improve the precision of catching target unmanned aerial vehicle.
The working process of the invention is as follows: and closing the charging switch to charge the capacitor. Through positioning mechanism (constitute by unmanned aerial vehicle from taking the camera and the distancer of changing to going), lock target unmanned aerial vehicle, with target unmanned aerial vehicle's relevant signal transmission to controlling means, promote other device work by controlling means. When the charge switch is opened and the launch switch is closed, the capacitor discharges and current is applied to the drive coil, the projectile coil (the leader of the capture net) induces a circular current in a direction opposite to the current on the drive coil. The annular current and the magnetic field interaction between the two coils generate ampere force to push the metal shot to move forwards, and when the shot seeker ejects the gun barrel, the capturing net is driven to effectively and accurately capture the target unmanned aerial vehicle.
The invention is further described below with reference to the accompanying drawings.
Referring to fig. 1 to 5, the positioning mechanism 4 is obtained by adding a range finder on the basis of a camera of the unmanned aerial vehicle for modification, and is used for locking the target unmanned aerial vehicle, so that an operator can conveniently control the operation of the whole device, and the capture efficiency of the target unmanned aerial vehicle is increased; the driving spring 9 is made of aluminum, and the hammer is made of iron; the shell of the catching device 5 is made of a non-metal material, so that the influence of electromagnetism generated by the launching device on the normal navigation of the unmanned aerial vehicle 1 is effectively reduced; the catching net 14 is made of a material with high toughness, the size of the net hole is about one fourth of that of the target unmanned aerial vehicle, air resistance of the catching net 14 flying to the target unmanned aerial vehicle is obviously reduced, and meanwhile, the catching net 14 is effectively prevented from being wound together in a staggered manner in the net storage barrel 7; several damping springs are uniformly distributed near the take-off and landing support 2 and the capture device 5, so that the influence of the recoil of the launching device on the unmanned aerial vehicle 1 is effectively reduced, the stable flight of the unmanned aerial vehicle 1 is facilitated, and the accuracy of capturing a target unmanned aerial vehicle is improved; an included angle of about 20 degrees is formed between the four launching tubes 6, so that the catching net 14 is guaranteed to be smoothly ejected and unfolded.
The invention is based on the electromagnetic principle and adopts the principle of a synchronous induction coil gun which is an electromagnetic emission mode.
The electromagnetic coil transmission is a technical branch of electromagnetic transmission, and generally comprises a plurality of coaxially arranged stator coils and an armature coil which can axially move in the stator coil, wherein the stator coils are sequentially charged by an external power supply during transmission, a strong magnetic field is formed around the coils and interacts with a magnetic field of armature induction (or external input) current to generate Lorentz force to push the armature to move. The armature is accelerated sequentially by using a plurality of stages of stator coils, and the armature can be continuously accelerated by precisely controlling the discharge time of the stator coils. Coaxial coil guns are the earliest form of electromagnetic guns, consisting of an accelerating coil and a projectile coil, and operate on the principle of interaction of magnetic fields between energized coils. The accelerating coil is fixed in the gun barrel, and when alternating current is introduced into the accelerating coil, the generated alternating magnetic field can generate induced current in the projectile coil. The magnetic field of the induced current interacts with the magnetic field of the accelerating coil current to generate an ampere force, so that the projectile is accelerated and launched.
(1) Charging part (see figure 1)
As shown in fig. 1, the device is composed of a dc power supply V1 (battery-powered), a charging switch S1, a transistor Q1, a boost coil T1, diodes D1, D2, a transistor Q1, a capacitor C1, a voltage dividing resistor R2, and a safety resistor R1.
The working process is as follows: the direct current power supply V1 supplies power, and is rectified by a triode Q1 and inverted into alternating current. After the voltage is boosted to the required voltage according to the set coil turn ratio at the two ends through the mutual inductance of the boosting coil T1 (namely, a small transformer), the voltage is rectified by a diode D1 to be converted back into direct current to charge a capacitor C1.
(2) Transmitting part (see fig. 2, 3 and 4)
As shown in fig. 1, the present part is composed of a dc power supply V1 (battery powered), a transmitting switch S2, a diode D2, a thyristor D3, a capacitor C1, a voltage dividing resistor R2, a driving coil 9, and an accelerating coil L113.
The working process is as follows: the current is turned off to the driving coil 9, the magnetism of the electromagnet core 8 disappears, the hammer 11 attracted before is sprung open by the compressed driving spring 10, and at the same time, the striking switch S2 is closed, the capacitor C1 is discharged, and the current is applied to the accelerating coil L113. The metal shot 12 will then induce a circular current in a direction opposite to the current flow on the accelerating coil 13. The annular current and the magnetic field interaction between two coils produce ampere force and promote metal shot 12 to move forward, when metal shot 12 jets out launch tube 6, deposit catching net 14 in net section of thick bamboo 7, catch target unmanned aerial vehicle effectively accurately.
To ensure that the net 14 is ejected and deployed smoothly, the launch tubes are angled at about 20 degrees. Meanwhile, in order to ensure that the metal shot 12 has a sufficient exit velocity, the increase of the exit velocity is essentially the increase of the electromagnetic force under the condition that the length of the launching tube 6 is limited. The method for improving the acceleration force comprises the following steps:
the method comprises the following steps: increasing current in the metal shot 12 or the accelerating coil 13 or in the two coils at the same time, and specifically, adopting a plurality of capacitors connected in parallel;
the second method comprises the following steps: a plurality of accelerating coils 13 are connected in series;
the third method comprises the following steps: the radius of the accelerating coil 13 is increased appropriately, and the distance between the two accelerating coils is decreased appropriately, taking into consideration the coordination relationship between the two.
(3) Catching net part (see fig. 5, 6 and 7)
The unmanned aerial vehicle capturing device comprises a capturing net (14), a light capturing net 14 and metal shot 12, wherein the capturing net (14) is in an unfolding side view (shown in figure 6) and the capturing net 14 is in an unfolding front view (shown in figure 7), the light capturing net 14 with proper size, proper mesh density and strong material toughness is combined with the metal shot 12, net wires are respectively fixed on the four metal shot 12, when a capacitor discharges, the metal shot 12 shoots out under the action of ampere force, and the capturing net 14 is pulled to unfold in the air to capture the target unmanned aerial vehicle.
(4) Control part (see fig. 3 and 4)
The positioning mechanism 4 of this device comprises unmanned aerial vehicle from the camera of taking and the distancer of going of modifying afterwards, through locking target unmanned aerial vehicle, with target unmanned aerial vehicle's relevant signal transmission to controlling means (unmanned aerial vehicle control panel after the improvement), promotes other device work by controlling means.
In addition, on the basis of the existing remote controller device, the control channel of the remote controller device is upgraded and reformed, parameters are adjusted, and the original control function is reformed into the required function. The receiver is connected with the transmitting switch S1 in series, a 12V single-path high-power direct-current power supply remote wireless switch remote controller (generator) is used for transmitting a signal frequency band about 315MHZ, the receiver decodes the received wireless signal to obtain a signal corresponding to a control key, and the transmitting switch S1 can be controlled. Due to the adoption of the parallel structure of the multiple capacitors C1, the discharge current can be adjusted by controlling the charging and discharging of the capacitor C1, the electromagnetic force is controlled, and the aim of controlling the ejection speed of the metal shot 12 according to the actual situation is fulfilled finally.
In addition, this device utilizes unmanned aerial vehicle's positioning mechanism 4 and launching tube 6 to combine as figure 2, and the rotation through control positioning mechanism 4 drives the rotation of launching tube 6, makes its capture scope increase, and is more nimble, improves the capture effect really.
(5) Carrying out the process
a. The charging switch S1 shown in fig. 1 is closed, and the dc power is supplied and rectified by the transistor Q1 and inverted into ac power. After the voltage is increased to the required voltage according to the set coil turn ratio at two ends through the mutual inductance effect of a booster coil T1 (namely, a small transformer), the voltage is rectified and converted into direct current through a diode D1 to charge a capacitor C1, in addition, current is supplied to a driving coil 9 to enhance the magnetism of an electromagnet iron core 8, so that the electromagnet iron core attracts a hammer 11, and meanwhile, a driving spring 10 is compressed;
b. by locking the target unmanned aerial vehicle, relevant signals of the target unmanned aerial vehicle are transmitted to the control device, and the control device pushes other devices to work;
c. when the current of the driving coil 9 is turned off, the driving spring 10 springs the hammer 11 open to hit the metal shot 12, giving an initial velocity to the metal shot 12, and at the same time, the charging switch S1 is opened, the firing switch S2 is closed, the capacitor C1 is discharged, and the current is applied to the accelerating coil 13, and the metal shot 12 induces a circular current in a direction opposite to the current flowing through the accelerating coil 13. The annular current and the magnetic field interaction between the two coils generate ampere force to push the metal shot 12 to move forwards, and when the shot 12 is shot out of the launching tube 6, the catching net 14 is pulled to be unfolded in the air, so that the target unmanned aerial vehicle can be effectively and accurately caught.
Claims (8)
1. The utility model provides an anti unmanned aerial vehicle trapping apparatus in air based on electromagnetic emission technique which characterized in that: comprises a lifting support (2), a connecting piece (3) and a positioning mechanism (4);
the lifting support (2) is fixed at the bottom of the unmanned aerial vehicle (1), the connecting piece (3) is installed on the lifting support (2), and the positioning mechanism (4) is fixed at the bottom of the unmanned aerial vehicle (1) and is positioned in the lifting support (2); the catching device (5) is arranged below the lifting support (2) through the connecting piece (3); catching device (5) are including launching tube (6), deposit a net section of thick bamboo (7), catch net (14) and circuit arrangement (15), circuit arrangement (15) are installed at the inside afterbody of catching device (5), the front end at catching device (5) is installed in n launching tube (6), the rear end of launching tube (6) passes through the connecting rod simultaneously and is connected with positioning mechanism (4), deposit a net section of thick bamboo (7) and place in the centre of launching tube (6), catch net (14) and place and deposit inside a net section of thick bamboo (7).
2. The aerial anti-drone capturing device of claim 1, characterized in that: the launching tube (6) comprises an electromagnet iron core (8), a driving coil (9), a driving spring (10), a hammer (11), a metal shot (12) and an accelerating coil (13); the electromagnet iron core (8) is fixed at the rear end of the interior of the launching tube (6), the driving coil (9) is wound on the exterior of the launching tube (6), and the wound part is positioned on the outer circumference of the electromagnet iron core (8); the driving spring (10), the hammer (11) and the metal shot (12) are all arranged in the launching tube (6), one end of the driving spring (10) is fixedly connected with the electromagnet iron core (8), and the other end of the driving spring is fixedly connected with the hammer (11); the metal shot (12) is arranged right ahead of the hammer (11), and the bullet head end of the metal shot (12) is connected with the catching net (14) through a connecting rope; the accelerating coil (13) is wound outside the launching tube (6) and the wound part is from the launching tube (12) where the metal shot (12) is positioned6) The outer circumference starts to the foremost end of the launching tube (6); the winding directions of the accelerating coil (13) and the driving coil (9) are the same, and the accelerating coil and the driving coil are clockwise or counterclockwise; the accelerating coils (13) are divided into m groups,
。
3. the aerial anti-drone capturing device of claim 1, characterized in that: positioning mechanism (4) comprise distancer and unmanned aerial vehicle camera from taking.
4. The aerial anti-drone capturing device of claim 1, characterized in that: the number of the transmitting tubes (6)
The included angle between adjacent transmitting tubes is 20-30 degrees.
5. The aerial anti-drone capturing device of claim 1, characterized in that: the driving spring (10) is made of aluminum.
6. The aerial anti-drone capturing device of claim 1, characterized in that: the shell of the catching device (5) is made of non-metal materials.
7. The aerial anti-drone capturing device of claim 1, characterized in that: the mesh size of the capture net (14) is one fourth of that of the target unmanned aerial vehicle.
8. The aerial anti-drone capturing device of claim 1, characterized in that: a plurality of damping springs are uniformly distributed between the lifting support (2) and the catching device (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910157130.9A CN111637795A (en) | 2019-03-01 | 2019-03-01 | Aerial anti-unmanned aerial vehicle trapping apparatus based on electromagnetic emission technique |
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| CN201910157130.9A CN111637795A (en) | 2019-03-01 | 2019-03-01 | Aerial anti-unmanned aerial vehicle trapping apparatus based on electromagnetic emission technique |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113048842A (en) * | 2020-12-24 | 2021-06-29 | 南京理工大学 | Reverse-low slow small aircraft carbon fiber winding and capturing device based on aerial platform emission |
| CN115060113A (en) * | 2022-06-24 | 2022-09-16 | 广州国曜科技有限公司 | Electromagnetic emission device with initial position positioning function |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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