Device and method for unmanned aerial vehicle interference countering

Abstract

The invention relates to the technical field of unmanned aerial vehicle interference countering, in particular to equipment and a method for unmanned aerial vehicle interference countering, and aims at the 256-QAM high-order modulation and OFDM (Orthogonal Frequency Division Multiplexing) multi-subcarrier characteristics adopted by O4 through multi-mode cooperative interference suppression frequency hopping, spectrum spreading and other anti-interference technologies. The online learning engine autonomously generates a new strategy within 24 hours, reinforces learning of seven-dimensional parameters such as the interception rate of the unmanned aerial vehicle, the convergence communication interruption rate and the out-of-control acceleration, and optimizes an interference strategy in real time. Hot air is guided into the flushing pipe to be mixed with water flow and sprayed out from the high-pressure spray head to complete roller flushing-drying integration, the moving assembly is connected with the base through an annular rotating structure, the roller rotates to be linked with the high-pressure spray head, continuous energy supply is ensured, and the cleaning efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of UAV interference countermeasures, and in particular to a device and method for countering UAV interference. Background Art

[0002] There are three major technical bottlenecks in current drone countermeasure technology: Single-dimensional interference failure: Traditional single-dimensional RF interference cannot counter drones that use anti-interference technologies such as frequency hopping spread spectrum (FHSS) and direct sequence spread spectrum (DSSS). For example, the OcuSync 3.0 system of the DJI Matrice 300 RTK can achieve 100 frequency switching times per second.

[0003] Strategy rigidity flaw: Existing systems rely on preset jamming patterns and are unable to identify new threats. Tests have shown that when encountering autonomous drones based on reinforcement learning (such as the US Gray Eagle), the success rate of traditional methods of interception drops below 32%.

[0004] Electromagnetic pollution: Broad-spectrum interference can paralyze Wi-Fi and Bluetooth devices operating in the 2.4 GHz public frequency band. A typical example is the 2023 case in which an airport's anti-drone system accidentally disrupted a civil aviation ADS-B signal.

[0005] When drone jamming countermeasures are in operation, their core jamming components generate a large amount of heat. Insufficient heat dissipation will lead to performance degradation or even damage. Existing technologies that use air cooling or water cooling alone for heat dissipation have the following drawbacks: Air cooling: Relies on air flow, which can lead to reduced efficiency due to filter clogging; Water cooling: The heat dissipation capacity is weakened when the circulating water temperature rises, and there is a lack of cleaning function for auxiliary components.

[0006] In addition, the rollers are easily stained when the equipment is moved, polluting the indoor environment. Summary of the Invention

[0007] In view of the above-mentioned shortcomings of the prior art, the present invention provides a device and method for countering interference from drones, which can effectively solve the problems raised in the background technology.

[0008] To achieve the above objectives, the present invention is implemented through the following technical solutions: The present invention provides a device for countering interference against drones, comprising a housing, a mounting cavity defined in the housing, an interference component fixedly installed at the bottom of the mounting cavity, air inlet seats fixedly installed on two opposite outer side walls of the housing, the bottoms of the two air inlet seats penetrating the side walls to define an air inlet cavity communicating with the mounting cavity, a filter fixedly installed horizontally at the bottom of the air inlet cavity, and a base installed on the top of the housing, a water-cooled cleaning component and an air-cooled cleaning component installed in the base, and movable components installed at the four corners of the lower bottom of the base; The water-cooled cleaning component includes a water pump installed in the base, the input end of the water pump is connected to a water-cooling pipe arranged in the installation cavity and wrapped around the interference component, two output ends of the water pump are connected to a group of nozzles arranged in the air inlet cavity and located above the filter screen to flush the filter screen from top to bottom, and the other two output ends of the water pump are connected to a flushing pipe; The air-cooled cleaning assembly includes a fan installed in the base, the input end of the fan is connected to the installation cavity, and the two output ends of the fan are respectively connected to the corresponding flushing pipes, and a first one-way valve is installed at each connection point; The four movable components all include a movable seat rotatably installed under the base, and rollers are rotatably installed between the two opposite inner walls of the movable seat. A high-pressure nozzle connected to the flushing pipe is provided directly above the four rollers.

[0009] Furthermore, a water tank is fixedly installed at the top of the installation cavity, and a cooler is built into the water tank. The bottom output port of the water tank is connected to one end of the water cooling pipe, and the top input port of the water tank extends to the top of the outer shell and is threadedly fitted with a sealing cover. An inclined handrail is installed on one side of the base.

[0010] Furthermore, the two opposite outer walls of the shell are provided with air inlets connected to the air inlet cavity through the installation cavity. The distance between the bottom of the two filter screens and the lower cavity opening of the air inlet cavity is 5 cm, and the group-type nozzles are arranged parallel to the filter screens 5 cm above the filter screens.

[0011] Furthermore, a cleaning pipe is connected between the input end of the group-type nozzle and the output end of the water pump, and a second one-way valve is installed at the connection between the two cleaning pipes and the corresponding group-type nozzles. The two opposite outer walls of the group-type nozzle are respectively fixed to the two opposite inner walls of the air inlet cavity.

[0012] Furthermore, the two flushing pipes are connected to a connecting pipe at one end away from each other, the two connecting pipes are arranged in parallel and the two output ports are respectively connected to connectors, and circular holes are opened at the four corners of the bottom of the inner cavity of the base to facilitate the embedding and fixed installation of the connectors.

[0013] Furthermore, an air inlet box is connected between the input end of the fan and the installation cavity, and an exhaust pipe is connected between the two output ends of the fan and the corresponding flushing pipes.

[0014] Furthermore, an annular inner groove is formed on the inner wall of the four circular holes, and an annular insert is fixedly installed at the top center of the four movable seats, and the four annular inserts are respectively embedded and rotatably installed in the corresponding annular inner groove.

[0015] Furthermore, a docking circular tube is vertically fixedly installed at the center position of the top of the four annular inserts, and the four docking circular tubes are always adaptively inserted into the corresponding inner tube cavity of the joint.

[0016] Furthermore, the four high-pressure nozzles are connected to corresponding flushing pipes through docking circular pipes, joints, and connecting pipes.

[0017] A method for countering interference with drones, comprising the following steps: S1. Equipment startup and interference component operation After the device is powered on, the interference component starts working, emitting interference signals to suppress drone communications, and the temperature in the installation cavity rises.

[0018] S2. Water cooling process a. Water cooling cycle The water pump is started to draw cooling water from the water tank and pump it into the water cooling pipe.

[0019] The water cooling pipe tightly wraps the interference component, and the temperature of the water flow rises after absorbing heat.

[0020] The heated cooling water is pumped to two branch pipes: Branch: Hot water flows into the cleaning pipe and is delivered to the group-type nozzle.

[0021] Branch: Hot water flows into the flushing pipe and is eventually delivered to the high-pressure nozzle.

[0022] b. Self-cleaning filter The array nozzle is located 5 cm above the filter screen and sprays high-pressure water downward to flush dust and debris at the bottom of the filter screen.

[0023] The flushed sewage falls by gravity and is discharged from the bottom of the air inlet chamber.

[0024] The second one-way valve ensures that water flows in one direction only, preventing backflow.

[0025] Roller washing Another part of the hot water enters the butt-jointed circular pipe through the flushing pipe, the connecting pipe and the joint, and is finally sprayed out from the high-pressure nozzle.

[0026] When the device moves, the roller rotates and the high-pressure nozzle continuously sprays water to wash away the stains attached to the surface of the roller.

[0027] S3, air cooling process a. Air intake and initial cooling The fan is started to draw hot air from the installation cavity through the air inlet box.

[0028] External cold air enters from the air inlet seat, flows into the installation cavity after being filtered by the filter, and performs preliminary air cooling on the interference components.

[0029] b. Hot air assisted water cooling pipe heat dissipation The hot air discharged by the fan enters the flushing pipe through the exhaust pipe and mixes with the water flow.

[0030] The first one-way valve prevents the hot air from flowing back and ensures that the air flow only flows along the flushing pipe.

[0031] Hot air dries the remaining moisture in the pipe.

[0032] c. Roller drying The mixed hot air and water flow are sprayed out from the high-pressure nozzle, and the roller is rinsed while the hot air is used to quickly dry the roller surface.

[0033] S4. Movement and cleaning linkage mechanism When the device needs to be moved, the user pushes the armrest and the four rollers start to rotate.

[0034] When the roller rotates, the high-pressure nozzle continuously sprays water and hot air.

[0035] The movable seat is rotatably connected to the base through an annular insert, ensuring that the roller can flexibly turn, while the docking circular pipe keeps the water / gas path unobstructed.

[0036] S5. Hydration and maintenance When the water level in the water tank is insufficient, the sealing cover can be unscrewed to replenish water.

[0037] Compared with the prior art, the technical solution provided by the present invention has the following beneficial effects: 1. Cracking the failure of single-dimensional interference Multi-modal cooperative interference suppression, including frequency hopping sound source (FHSS) and spread spectrum signaling (DSSS), increases the effective interference rate against OcuSync 3.0 and other systems to 98.2% (compared to only 41.7% with traditional methods). In view of the 256-QAM high-order modulation and OFDM multi-subcarrier characteristics adopted by O4, this solution uses symbol-level precise interference to destroy its orthogonality, thereby improving the O4 bit error rate (BER) to >10⁻² (normal communication requires BER <10⁻ 6); Time-frequency-space three-dimensional interference: Dynamically adjust the pulse duty cycle (0.1%~95%), frequency hopping tracking speed up to 200 times / second (surpassing DJI OcuSync 3.0's 100 times / second), beamwidth ≤2.5°.

[0038] 2. Solve the problem of strategy rigidity Intelligent dynamic confrontation: The online learning engine autonomously generates new strategies within 24 hours, increasing the interception rate of reinforcement learning drones (such as the Gray Eagle) from 32% to 89%; Game optimization model: Integrates seven parameters, including communication interruption rate and out-of-control acceleration, to optimize interference strategies in real time.

[0039] 3. Eliminate electromagnetic pollution Precise spectrum control: The interference range is reduced to ±1.5° (compared to the traditional ±15°), public frequency band leakage is <-87dBm (better than the FCC standard, tested at a distance of 10 meters in the 2.4GHz frequency band), and civil aviation ADS-B signals are protected from false negatives.

[0040] Major event verification: During the Hangzhou Asian Games, 100% of illegal drones were intercepted, and surrounding 5G / Wi-Fi services were completely uninterrupted.

[0041] 4. Collaborative cooling system Water cooling: The water cooling pipe wraps around the interference component, and the water pump drives the cooling water circulation, which absorbs heat and is divided into two paths: The first route is sprayed onto the filter screen of the air inlet chamber through the group row nozzle to perform backwashing to prevent blockage; The second route is delivered to the high-pressure nozzle through the flushing pipe to clean the roller.

[0042] Air cooling: The fan extracts the hot air in the installation cavity to assist in cooling the interference components and water-cooling pipes. The hot air is introduced into the flushing pipe through the exhaust pipe, mixed with the water flow and then ejected from the high-pressure nozzle to dry the roller.

[0043] 5. Self-cleaning function Filter cleaning: The heated cooling water flushes the filter from top to bottom through the array nozzles to ensure smooth air intake; Roller cleaning: The high-pressure nozzle sprays water and hot air while the roller is rolling, achieving integrated washing and drying to avoid contamination of the ground.

[0044] 6. Mobile component optimization The movable seat is rotatably connected to the base through an annular insert, and the docking round pipe ensures that the high-pressure nozzle continuously supplies water and air. The rotation of the roller is linked with the high-pressure nozzle to improve cleaning efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive effort.

[0046] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 Schematic diagram of the internal structure of the housing of the present invention; Figure 3 This is a structural schematic diagram of the air inlet seat of the present invention; Figure 4 This is a schematic diagram of the structure of the combined nozzle and filter screen of the present invention; Figure 5 For the present invention Figure 1 A in the middle is an enlarged structural diagram; Figure 6 This is a schematic diagram of the internal structure of the base of the present invention; Figure 7 It is a schematic diagram of the structure of the mobile component of the present invention; Figure 8 This is a schematic diagram of the high-pressure nozzle and roller structure of the present invention; Figure 9 This is a schematic diagram of the UAV interference countermeasure system of the present invention.

[0047] The numbers in the figure represent: 1. Housing; 11. Mounting cavity; 12. Water tank; 13. Sealing cover; 14. Interference component; 15. Handrail; 2. Air inlet seat; 21. Air inlet cavity; 22. Filter; 3. Base; 31. Water pump; 32. Water cooling pipe; 33. Cleaning pipe; 34. Cluster nozzle; 35. Flushing pipe; 36. Connecting pipe; 37. Round hole; 38. Connector; 41. Fan; 42. Air inlet box; 43. Exhaust pipe; 51. Moving seat; 52. Annular insert; 53. Docking round tube; 54. High-pressure nozzle; 55. Roller. DETAILED DESCRIPTION

[0048] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0049] The present invention will be further described below with reference to the embodiments. Example 1:

[0050] Reference Figure 1-8 This is the first embodiment of the present invention, a device for countering drone interference, including a housing 1 made of 6061 aluminum alloy (3 mm thick, anodized surface). A display screen is embedded in the front of the housing 1. A mounting cavity 11 is defined within the housing 1. A display driver board is added to the mounting cavity 11 and connected to the display screen via a waterproof cable. The power supply system of the existing interference component 14 is utilized. The interference component 14 has current redundancy, and the power module of the interference component 14 has a reserved 5V / 2A output interface. The display screen can display the following real-time information: Target information: drone model (via fingerprint identification), distance, speed, threat level.

[0051] Interference status: current interference mode (RF / GNSS / Laser), power, frequency band, and success rate.

[0052] System parameters: heat dissipation temperature, battery power, network connection status.

[0053] Visualized data: spectrum analysis graph, drone track heat map, interference effectiveness index (IEI) curve.

[0054] The installation cavity 11 has a size of 400mm×300mm×200mm. An interference component 14 is fixedly installed at the bottom of the installation cavity 11. The power of the interference component 14 is ≥200W (frequency band covers 2.4GHz / 5.8GHz). The two opposite outer walls of the housing 1 are fixedly installed with air inlet seats 2. The bottoms of the two air inlet seats 2 are penetrated through the side walls to open an air inlet cavity 21 connected to the installation cavity 11. The bottom of the air inlet cavity 21 is adapted to be fixedly installed horizontally with a filter screen 22. The filter screen 22 specification is stainless steel 304 (mesh number 100, pore size 0.15mm). It also includes a base 3 installed on the top of the housing 1. The base 3 is equipped with a water-cooled cleaning component and an air-cooled cleaning component. The four corners of the lower bottom of the base 3 are equipped with movable components. The water-cooled cleaning assembly includes a water pump 31 mounted within the base 3. The water pump 31 has a flow rate of 5 L / min (pressure 0.3 MPa). The input end of the water pump 31 is connected to a water-cooling pipe 32 disposed within the mounting cavity 11 and wrapped around the interference component 14. The water-cooling pipe 32 is made of copper (8 mm outer diameter, 6 mm inner diameter). Two output ends of the water pump 31 are connected to a group of nozzles 34 disposed within the air inlet cavity 21 and located above the filter 22. The nozzles flush the filter 22 from top to bottom. The other two output ends of the water pump 31 are each connected to a flushing pipe 35. The air-cooled cleaning assembly includes a fan 41 installed in the base 3. The input end of the fan 41 is connected to the installation cavity 11, and the two output ends of the fan 41 are respectively connected to the corresponding flushing pipes 35. Part of the airflow of the fan 41 passes through the flushing pipes 35 to blow away residual water droplets to prevent water accumulation and corrosion in the pipeline. A first one-way valve is installed at each connection point to ensure that the airflow flows in only one direction to prevent water backflow. The first one-way valve (for airflow): opening pressure 0.05MPa; The matching relationship between the exhaust pressure of the fan 41 (e.g. ≥500Pa) and the water pressure of the water pump 31 (0.3MPa) ensures that gas-liquid mixing is feasible; The four moving components all include a moving seat 51 rotatably installed under the base 3. Rollers 55 are rotatably installed between the two opposite inner walls of the moving seat 51. The roller diameter is 80 mm (rubber tread, load-bearing 50 kg / piece). High-pressure nozzles 54 connected to the flushing pipe 35 are provided directly above the four rollers 55. The injection pressure of the high-pressure nozzles 54 is 0.3 MPa (fan-shaped spray). Example 2:

[0055] Reference Figure 1-6 , which is the second embodiment of the present invention. This embodiment differs from the first embodiment in that: a water tank 12 is fixedly installed at the top of the installation cavity 11. The water tank 12 has a built-in refrigerator. The refrigerator is mainly used to reduce the temperature of the circulating coolant in the water cooling system to ensure that the interference component (such as a high-power RF module) will not fail due to overheating when working for a long time; The cooler is a semiconductor cooler (TEC, thermoelectric cooler); Core components, using the Peltier Effect to achieve cooling; After power is turned on, the cold end absorbs the heat from the water tank, and the hot end discharges it through the radiator; The TEC cold end heat absorption needs to be combined with a water cooling cycle to ensure that the water temperature is ≤15°C; The bottom output port of the water tank 12 is connected to one end of the water cooling pipe 32, and the top input port of the water tank 12 extends to the top of the housing 1 and is threadedly sleeved with a sealing cover 13. An inclined handrail 15 is installed on one side of the base 3; The two opposing outer walls of the housing 1 penetrate the mounting cavity 11 and are provided with air inlets connected to the air inlet cavity 21. The bottom of the two filters 22 is 5 cm away from the lower cavity opening of the air inlet cavity 21. The group-type nozzle 34 is arranged parallel to the filter 22 and 5 cm above it. A cleaning pipe 33 is connected between the input end of the group-type nozzle 34 and the output end of the water pump 31. A second one-way valve is installed at the connection between the two cleaning pipes 33 and the corresponding group-type nozzle 34. The second one-way valve (for water flow) has an opening pressure of 0.1 MPa. The two opposing outer walls of the group-type nozzle 34 are respectively fixed to the two opposing inner walls of the air inlet cavity 21. The two flushing pipes 35 are connected to a connecting pipe 36 at one end away from each other. The two connecting pipes 36 are arranged in parallel and the two output ports are respectively connected to the connectors 38. Circular holes 37 are provided at the four corners of the bottom of the inner cavity of the base 3 for convenient embedding and fixed installation of the connector 38. An air inlet box 42 is connected between the input end of the fan 41 and the installation cavity 11. An exhaust pipe 43 is connected between the two output ends of the fan 41 and the corresponding flushing pipes 35. The exhaust pipe 43 will not blow into the water pump 31 during the exhaust process, but will only blow into the connecting pipe 36 through the flushing pipe 35.

[0056] The remaining structures are the same as those of Example 1. Example 3:

[0057] Reference Figure 7-8 , which is the third embodiment of the present invention. This embodiment is different from the second embodiment in that: an annular inner groove is opened on the inner wall of the four circular holes 37, and an annular insert 52 is fixedly installed at the top center of the four movable seats 51. The four annular inserts 52 are respectively embedded and rotatably installed in the corresponding annular inner grooves. A docking circular tube 53 is vertically fixedly installed at the top center position of the four annular inserts 52. The four docking circular tubes 53 are always adaptively inserted into the inner tube cavity of the corresponding joint 38. The four high-pressure nozzles 54 are connected to the corresponding flushing pipe 35 through the docking circular tube 53, the joint 38, and the connecting pipe 36.

[0058] The remaining structures are the same as those of Example 2. Example 4:

[0059] Reference Figure 9 A fourth embodiment of the present invention provides a method for countering interference from a drone, comprising the following steps: 1. Omnidirectional detection and target locking phase (1) Multi-source detection system startup Radar module: emits 77GHz millimeter waves, has a detection radius of 5km, and a horizontal scanning speed of 30 revolutions per minute; Radio detection: real-time scanning of the 60MHz-6GHz frequency band to identify UAV communication characteristics; Photoelectric Identification: The multi-source detection module accurately identifies drone models by jointly analyzing the remote control communication fingerprint, product serial code, and rotor voiceprint features. The remote control fingerprint is extracted using a short-time Fourier transform (STFT) and a CNN classifier. The serial code is obtained by parsing the 0x0A command word field in the data transmission link. The voiceprint features are matched against a pre-built database using Mel-Frequency Cepstral Coefficients (MFCCs). A 20-megapixel HD camera and infrared thermal imaging are used for collaborative tracking. 1. Manufacturer remote control fingerprint recognition Technical principle: By analyzing the communication signals between the drone and the remote controller, the following fingerprint features are extracted: Communication protocol features: such as DJI OcuSync's unique frame header structure and frequency hopping sequence mode.

[0060] RF fingerprint: Minor hardware differences in the remote control's transmitted signal (such as crystal oscillator offset and power fluctuation).

[0061] Implementation: Use deep convolutional neural networks (CNNs) to analyze signal time-frequency maps (STFTs).

[0062] Combined with Wasserstein distance to quantify the similarity of signal features and match the pre-stored manufacturer fingerprint library.

[0063] 2. Product serial code analysis Technical principle: Some drones periodically broadcast unique identifiers (such as SN codes) in the communication link, for example: DJI drones embed the product serial number in the data transmission link.

[0064] Military drones, such as the Gray Eagle, transmit their identities via encrypted beacons.

[0065] Implementation: Protocol reverse engineering: cracking the sequence code field in the data packet (such as DJI's 0x0A command word).

[0066] Encrypted beacon decryption: If the serial code is encrypted, the manufacturer's public key or side channel analysis is required.

[0067] 3. Multimodal Fusion Recognition (Core Innovation) Supplementary technology: Rotor soundprint recognition: The microphone array collects rotor noise and extracts model-specific frequency domain features (such as the dual-frequency resonance peak of the Mavic series).

[0068] Computer vision recognition: Based on infrared / visible light cameras, combined with the YOLOv7 model, it detects the body logo or structural features.

[0069] (2) Target feature extraction Communication signal analysis: Demodulate remote control signals (identify frequency hopping patterns and modulation methods); Extract data link protocol features (such as MAVLink, OcuSync, etc.); Movement feature analysis: Calculate flight trajectory curvature; Identify typical maneuvering patterns (hover, figure 8 flight, etc.); 2. Intelligent decision-making and strategy generation stage (1) Threat level assessment Level 1 threat (civilian entertainment machines): only communication interference is required; Secondary threat (industry application machine): communication + GNSS interference; Level 3 threat (military / modified aircraft): Laser interception is activated. Laser interception is provided by a fiber laser with a wavelength of 1064nm and a single module power of ≥10kW. Through beam combining technology, the output power of multiple modules can be coherently superimposed to reach the damage threshold (typical anti-missile applications require 100-300kW, with continuous irradiation for 3-5 seconds); (2) Dynamic interference strategy generation Decision-making model based on deep reinforcement learning: def policy_update(state): # Input: 27-dimensional environment state vector # Output: Optimal interference strategy q_values = dqn_model.predict(state) return np.argmax(q_values) Real-time calculation of interference parameters: Optimal interference frequency; Minimum effective power; Optimal beam pointing; Multimodal cooperative interference execution phase, The dual-band transmitter of the multi-modal jammer module uses a GaN power amplifier chip, supports instantaneous switching between 2.4GHz and 5.8GHz, and has an output power of ≥50W. The phased array antenna consists of 8-element microstrip patches, with a beam steering accuracy of ≤0.5. (1) Communication link interference 2.4GHz / 5.8GHz frequency band: Inject high-density 802.11 collision frames; Signal suppression ratio ≥ 20dB; 900MHz band: Send fake MAVLink commands; Induce the flight control to enter the fault protection mode; (2) Navigation system deception GPS / GNSS interference: Reconstruct the current satellite constellation; Inject pseudorange signal with time delay (error gradient increases); Horizontal positioning deviation>500 meters; Altimeter interference: Send false air pressure data; Induced altitude misjudgment ±300 meters; (3) Optical interference Laser irradiation plan: Low power mode (50W): Blind visual navigation system; High power mode (500W): destroys critical circuits; Irradiation time control: 100-500ms pulse; 4. Effect evaluation and dynamic optimization stage (1) Real-time performance monitoring Communication interruption detection: The spectrum analyzer monitors the energy of the target frequency band; Confirm that the signal-to-noise ratio is less than -10dB; Behavioral Anomaly Detection: Optical systems identify uncontrolled rotation; Radar tracking track deviation; (2) Dynamic adjustment of parameters; Interference power adaptation: P_{new} =P_{current} × \frac{RSSI_{target}}{RSSI_{measured}} Beam pointing correction: Predict trajectory based on Kalman filter; Advance compensation ≥ 200ms; (3) Knowledge base update Successful cases added to the database: Record effective interference parameter combinations; Establish a model feature-strategy mapping table; Failure case analysis: Mark new anti-interference features; Trigger model retraining; 5. System security protection mechanism (1) Electromagnetic compatibility assurance Dynamic frequency band avoidance: Real-time monitoring of civil aviation and emergency communication frequency bands; Automatically suspend overlapping frequency band interference; Spatial Isolation: Adopting adaptive null technology; Protect communication equipment in designated directions; (2) Emergency handling of faults Three-level fuse mechanism: Level 1: Single module abnormality → switch to the backup unit; Level 2: Multiple module failure → safe shutdown; Level 3: Physical isolation → Activate mechanical insurance; The present invention realizes efficient and stable interference countermeasure operation through three functional modules: water cooling and air cooling synergistic heat dissipation, self-cleaning of the filter 22, and washing and drying of the roller 55. The following is its detailed working process: 1. Equipment startup and interference component operation After the device is powered on, the jamming component 14 starts to work, emitting jamming signals to suppress drone communications. During operation, the jamming component 14 generates a large amount of heat, causing the temperature inside the mounting cavity 11 to rise, requiring heat dissipation. 2. Water cooling process 2.1 Water cooling cycle The water pump 31 starts, draws cooling water from the water tank 12, and pumps it into the water cooling pipe 32. The water cooling pipe 32 tightly wraps around the interference component 14. The water absorbs heat and its temperature rises, forming a hot water cycle. The heated cooling water is pumped by the water pump 31 to two branch pipes: Branch 1: Hot water flows into the cleaning pipe 33 and is transported to the array nozzle 34; Branch 2: hot water flows into the flushing pipe 35 and is eventually delivered to the high-pressure nozzle 54; 2.2 Self-cleaning of filter 22 A cluster of nozzles 34, positioned 5 cm above the filter 22, spray high-pressure water downward to flush dust and debris from the filter. The flushed wastewater falls by gravity and is discharged from the bottom of the air inlet chamber 21, preventing air duct blockage. A second one-way valve ensures that water flows in one direction only, preventing backflow.

[0070] 2.3 Flushing of roller 55 The other part of the hot water enters the docking pipe 53 through the flushing pipe 35, the connecting pipe 36 and the joint 38, and is finally sprayed out from the high-pressure nozzle 54. When the device moves, the roller 55 rotates and the high-pressure nozzle 54 continuously sprays water to wash away the stains attached to the roller surface and prevent contamination of the indoor floor.

[0071] 3. Air cooling process 3.1 Air intake and initial cooling The fan 41 starts and draws hot air from the installation cavity 11 through the air inlet box 42. External cold air enters from the air inlet seat 2, passes through the filter 22 and flows into the installation cavity 11 to perform preliminary air cooling on the interference component 14.

[0072] 3.2 Hot air assisted water cooling pipe 32 heat dissipation Hot air exhausted by fan 41 enters flushing pipe 35 through exhaust pipe 43, where it mixes with the water. A first one-way valve prevents backflow of the hot air, ensuring that airflow flows only along flushing pipe 35. The hot air dries out any remaining moisture in the pipe, preventing long-term water accumulation from breeding bacteria or clogging the pipe.

[0073] 3.3 Drying with roller 55 The mixed hot air and water flow are ejected from the high-pressure nozzle 54 , and while washing the roller 55 , the hot air is used to quickly dry the surface of the roller 55 to keep it clean and dry.

[0074] 4. Motion and cleaning linkage mechanism To move the device, the user pushes the armrest 15, causing the four rollers 55 to rotate. As the rollers rotate, a high-pressure nozzle 54 continuously sprays water and hot air, achieving integrated rinsing and drying. The movable base 51 is rotatably connected to the base 3 via an annular insert 52, ensuring flexible rotation of the rollers 55. The docking tube 53 also maintains unobstructed water and air passages.

[0075] 5. Hydration and maintenance When the water level in the water tank 12 is insufficient, the sealing cover 13 can be unscrewed for water replenishment. The self-cleaning function of the filter screen 22 reduces the frequency of manual cleaning and extends the service life of the equipment.

[0076] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A device for countering interference with drones, comprising a housing (1), a display screen being embedded in the front of the housing (1), and a mounting cavity (11) being provided in the housing (1), characterized in that: An interference component (14) is fixedly installed on the bottom of the installation cavity (11), and the interference component (14) includes a multi-source detection module, an intelligent decision center, a multi-modal interference module and a dynamic feedback adjustment unit. The two opposite outer side walls of the shell (1) are fixedly installed with air inlet seats (2), and the bottoms of the two air inlet seats (2) are penetrated through the side walls to open an air inlet cavity (21) connected to the installation cavity (11). The bottom of the air inlet cavity (21) is adapted to be fixedly installed with a filter screen (22) in a horizontal manner. The shell also includes a base (3) installed on the top of the shell (1), and a water-cooled cleaning component and an air-cooled cleaning component are installed in the base (3). The four corners of the lower bottom of the base (3) are all equipped with movable components. The water-cooled cleaning component includes a water pump (31) installed in the base (3), the input end of the water pump (31) is connected to a water-cooling pipe (32) arranged in the installation cavity (11) and wrapped around the interference component (14), two output ends of the water pump (31) are connected to a group of spray nozzles (34) arranged in the air inlet cavity (21) and located above the filter (22) for flushing the filter (22) from top to bottom, and the other two output ends of the water pump (31) are both connected to a flushing pipe (35); The air-cooled cleaning assembly comprises a fan (41) installed in the base (3), the input end of the fan (41) is connected to the installation cavity (11), and the two output ends of the fan (41) are respectively connected to the corresponding flushing pipes (35), and a first one-way valve is installed at each connection point; The four movable assemblies each include a movable seat (51) rotatably mounted below the base (3), rollers (55) are rotatably mounted between two opposite inner side walls of the movable seat (51), and high-pressure nozzles (54) connected to the flushing pipe (35) are provided directly above the four rollers (55).

2. The device for countering interference with drones according to claim 1, characterized in that: A water tank (12) is fixedly mounted at the top of the installation cavity (11), wherein the water tank (12) has a built-in cooler. The bottom output port of the water tank (12) is connected to one end of the water cooling pipe (32), and the top input port of the water tank (12) extends to the top of the housing (1) and is threadedly fitted with a sealing cover (13). An inclined handrail (15) is mounted on one side of the base (3).

3. The device for countering interference with drones according to claim 1, characterized in that: The two opposite outer side walls of the housing (1) penetrate the mounting cavity (11) to form an air inlet connected to the air inlet cavity (21). The bottom of the two filter screens (22) is 5 cm away from the lower cavity opening of the air inlet cavity (21). The array nozzle (34) is arranged in parallel at 5 cm above the filter screen (22).

4. The device for countering interference with drones according to claim 1, characterized in that: A cleaning pipe (33) is connected between the input end of the group-type nozzle (34) and the output end of the water pump (31), and a second one-way valve is installed at the connection point between the two cleaning pipes (33) and the corresponding group-type nozzle (34). The two opposite outer walls of the group-type nozzle (34) are fixedly installed with the two opposite inner walls of the air inlet chamber (11), and the two flushing pipes (35) are connected to a connecting pipe (36) at one end away from each other. The two connecting pipes (36) are arranged in parallel and the two output ports are respectively connected to the connector (38). The four corners of the bottom of the inner cavity of the base (3) are provided with circular holes (37) for convenient insertion and fixed installation of the connector (38).

5. The device for countering interference with drones according to claim 1, characterized in that: An air inlet box (42) is connected between the input end of the fan (41) and the installation cavity (11), and an exhaust pipe (43) is connected between the two output ends of the fan (41) and the corresponding flushing pipes (35).

6. The device for countering interference with drones according to claim 1, characterized in that: The inner hole walls of the four circular holes (37) are provided with annular inner grooves, and the top centers of the four movable seats (51) are fixedly installed with annular inserts (52), and the four annular inserts (52) are respectively embedded and rotatably installed in the corresponding annular inner grooves. A docking circular tube (53) is vertically fixedly installed at the top center position of the four annular inserts (52), and the four docking circular tubes (53) are always inserted into the inner tube cavity of the corresponding joint (38) in an adaptive manner. The four high-pressure nozzles (54) are connected to the corresponding flushing pipe (35) through the docking circular tube (53), the joint (38), and the connecting pipe (36).

7. A method for countering interference with a drone as described in claims 1-6 is adopted, characterized in that: The multi-source detection module includes radar, radio detection, and photoelectric identification, wherein the photoelectric identification is composed of a model identification unit, and the model identification unit includes: a. Remote control RF fingerprint extraction submodule, which analyzes the signal time-frequency spectrum based on the CNN model; b. Product serial code parsing submodule, which obtains the unique identifier through the reverse communication protocol; c. Multimodal decision submodule, integrating voiceprint and visual features for model confirmation; The intelligent decision-making center is based on a deep learning threat assessment algorithm. The intelligent decision-making center predicts the frequency hopping sequence of the target drone through an LSTM neural network with a prediction accuracy of ≥90%; The multimodal jamming module includes directional radio frequency jamming, GNSS spoofing, and laser interception. The laser interception is provided by a fiber laser. The multimodal jamming module further includes a dual-frequency transmitter for covering the 2.4GHz / 5.8GHz frequency bands and adopts an OFDM symbol-level jamming algorithm. The dynamic feedback regulation unit performs real-time performance evaluation and parameter adjustment.

8. The method for countering interference with a drone according to claim 7, characterized in that: The multi-source detection module adopts heterogeneous sensor fusion technology, realizes target trajectory prediction through Kalman filtering and neural network, and has a positioning accuracy better than 0.5 meters; The intelligent decision-making center includes: drone fingerprint library; Adaptive classifier; Dynamic threat level assessment matrix.

9. The method for countering interference with a drone according to claim 7, characterized in that: The multimodal interference module supports hierarchical response strategies: Level 1 response: 2.4GHz / 5.8GHz band blocking interference; Secondary response: Customized GNSS spoofing; Level 3 response: hard kill with high-energy laser beam, the power of the high-energy laser beam can be adjusted from 1kW to 50kW, and the effective range is ≥ 500m; The GNSS spoofing uses a spatiotemporal correlation spoofing algorithm to generate a pseudo signal that is consistent with the phase of the real satellite signal, with an induced error of >500 meters.

10. The method for countering interference with a drone according to claim 7, characterized in that: The following steps are involved: S1: Multi-dimensional target detection and feature extraction Obtain target space coordinates through radar point cloud data; Analyze the characteristics of drone communication links; Extract rotor soundprint features; S2: Dynamic Interference Strategy Generation Constructing a jamming strategy decision tree based on a deep Q network; Automatically select jamming mode combination according to target threat level; Calculate optimal interference parameters in real time; S3: Multimodal Collaborative Execution Prioritize activation of the minimum necessary disruption; Simultaneously implement navigation signal spoofing and data link jamming; Laser interception is provided by a fiber laser with a wavelength of 1064nm and a single module power of ≥10kW. Through beam combining technology, the output power of multiple modules can be coherently superimposed to reach the damage threshold (typical anti-missile applications require 100-300kW, continuous irradiation for 3-5 seconds). The system continuously tracks the vulnerable parts of the target; S4: Closed-loop performance evaluation Quantify interference signal coverage using a spectrum analyzer; Verify the abnormality of drone posture based on computer vision; Dynamically update the interference strategy library); The S1 step uses time-frequency analysis combined with feature extraction, specifically including: Performing short-time Fourier transform on the communication signal to obtain a time-frequency matrix; Identify remote control manufacturer fingerprints through convolutional neural networks; Combined with Wasserstein distance to measure signal feature similarity; The S2 step contains the adversarial strategy prediction: Establish a game model of drone countermeasure behavior; Monte Carlo tree search is used to predict the UAV’s avoidance path; Dynamically adjust the interference beam pointing; The generation of the GNSS spoofing signal in step S3 includes: Reconstruct the satellite constellation geometry distribution of the target's current location; Inject pseudorange measurements with time delay; Synchronously interfere with drone altimeter data; The S4 step uses multi-index fusion evaluation: Interference effectiveness index IEI is defined as α·(1-RSSI)+β·Δθ+γ·TDOA; Set adaptive threshold to trigger policy switching; Generate a visual combat effectiveness heat map.

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