Unmanned aerial vehicle countering device and system
By designing an adjustable-angle and 360-degree rotating drone countermeasure device, combined with an RF front-end module and signal processing unit, the drone countermeasure equipment achieves convenient operation and multi-band signal interference, enhancing the real-time jamming capability against drones.
Patent Information
- Application Number
- CN202520540384.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-26
- Publication Date
- 2026-02-13
- Estimated Expiration
- 2035-03-26
AI Technical Summary
Existing drone countermeasures equipment is inconvenient to operate and insufficient in interfering with multi-frequency signals, making it difficult to effectively counter the threat of multi-frequency drones.
A drone countermeasure device was designed, comprising an adjustable-angle drone countermeasure and a 360-degree rotating component. Combined with an RF front-end module, an SDR processing unit, and a power amplification and filtering module, it achieves coverage of the 1.2GHz to 6GHz frequency band and rapid frequency band switching.
It enables convenient operation of the drone countermeasure device and multi-band signal interference, enhances the real-time interference capability against drones, and solves the problems of inconvenient operation and inflexible frequency band switching.
Smart Images
Figure CN223912490U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the unmanned plane countermeasure technical field, especially related to an unmanned plane countermeasure device and system. BACKGROUND
[0002] In recent years, with the rapid development of science and technology, the unmanned plane technology has made remarkable progress, its cost is reduced constantly, the performance is promoted day by day, and operation is more and more simple. This makes the unmanned plane in the civil, commercial and other fields has been very widely used, for example in photography, agricultural plant protection, logistics distribution, surveying and mapping exploration and other aspects, has brought great convenience to people's life and work. However, the wide popularity of unmanned plane also triggered a series of serious problems. In some sensitive places, the random intrusion of unmanned plane caused a lot of trouble. In private clubs, some lawbreakers use unmanned plane to carry high-definition camera equipment to carry out paparazzi activities, seriously infringe the privacy of others, destroy the private environment of private clubs, lead customers to doubt the safety of private clubs, and affect the normal operation of the club.
[0003] To cope with these increasingly serious unmanned plane threats, some unmanned plane countermeasures have emerged in the market. The traditional unmanned plane countermeasures are mostly handheld, and such devices cut off the communication link between the unmanned plane and the remote controller by emitting a specific frequency interference signal, so that the unmanned plane loses control, thereby realizing the interception of illegal unmanned plane. The operator needs to hold the device and aim at the unmanned plane for operation, which is usually more laborious, and the existing unmanned plane countermeasures still have deficiencies in signal interference of multiple frequency bands. UTILITY MODEL CONTENT
[0004] The utility model aims at providing an unmanned plane countermeasure device and system to solve the problems mentioned in the background technology. The specific technical scheme is as follows:
[0005] The utility model provides an unmanned plane countermeasure device first, including unmanned plane countermeasure device, the unmanned plane countermeasure device is arranged on the first rotation component, the first rotation component is connected on the second rotation component, the second rotation component is connected on the mounting plate, the mounting plate is arranged on the base, the base is connected with the lifting frame, the inside of the base is connected with the drive mechanism, the drive mechanism is connected with the lifting frame.
[0006] Preferably, the first rotation component includes a connecting seat, the connecting seat is rotatably connected to a concave plate, the concave plate is connected to the second rotation component, and the unmanned plane countermeasure device is connected to the connecting seat and located in the groove of the concave plate.
[0007] Preferably, the second rotation component includes a fixed shaft, the fixed shaft output end is connected with a rotating plate, and the rotating plate is connected with the first rotation component.
[0008] Preferably, a sliding groove is arranged on the base, the lifting frame is arranged in the sliding groove, and the driving mechanism drives the lifting frame to move up and down in the sliding groove.
[0009] The utility model also provides an unmanned plane countermeasure system, the countermeasure system sets up unmanned plane countermeasure ware of unmanned plane countermeasure device above described, unmanned plane countermeasure system includes:
[0010] Radio frequency front end module, radio frequency front end module can cover 1.2GHz~6GHz frequency band, radio frequency front end module is used to be responsible for signal reception, amplification and digitization processing;
[0011] SDR processing unit, SDR processing unit is used to complete signal processing, spectrum analysis and interference waveform generation;
[0012] Power amplification and filter module, power amplification and filter module are used to enhance interference signal intensity and ensure frequency band purity.
[0013] Preferably, the radio frequency front end module includes a wideband antenna array, a low-noise amplifier, a high-speed ADC, and a high-speed DAC, the wideband antenna array is connected with the low-noise amplifier, the low-noise amplifier is connected with the high-speed ADC and the high-speed DAC, and the high-speed ADC is connected with the high-speed DAC.
[0014] Preferably, the SDR processing unit includes an FPGA chip module and a GPU acceleration module connected with each other.
[0015] Preferably, the power amplification and filter module includes a wideband power amplifier and a programmable filter group connected with each other.
[0016] Compared with the prior art, the utility model has the following beneficial effects:
[0017] 1. In the unmanned plane countermeasure device provided in the utility model, the unmanned plane countermeasure device is installed to the first rotating component, so that the operator can adjust the angle of the unmanned plane countermeasure device relative to the unmanned plane through the first rotating component, the unmanned plane countermeasure device is aligned with the unmanned plane at a suitable angle, and the second rotating component can realize 360-degree rotation of the unmanned plane countermeasure device, so that the unmanned plane countermeasure device supports the unmanned plane countermeasure device in use.
[0018] 2. The utility model provides a kind of unmanned aerial vehicle countermeasure device, lifting frame is arranged, unmanned aerial vehicle countermeasure device is installed to lifting frame inside, when needing use, make lifting frame descend to pedestal inside, further make unmanned aerial vehicle countermeasure device in frame expose, when not use, lifting frame from pedestal inside rises and frames unmanned aerial vehicle countermeasure device, unmanned aerial vehicle countermeasure device plays the protection role, entire unmanned aerial vehicle countermeasure device is installed to use site by pedestal.
[0019] 3. The utility model discloses unmanned aerial vehicle countermeasure device is arranged with radio frequency front end module, SDR processing unit and power amplification and filter module, so that unmanned aerial vehicle countermeasure device can continuously adjustable to 1.2GHz-6GHz frequency band, while realizing frequency band fast switching, enhance the real-time performance of signal interference and the ability of multi-band processing. BRIEF DESCRIPTION OF DRAWINGS
[0020] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description. In all the drawings, similar elements or parts are generally identified by similar reference signs. In the drawings, each element or part is not necessarily drawn according to the actual proportion.
[0021] Figure 1 is the structure schematic view of the unmanned aerial vehicle countermeasure device provided by the utility model;
[0022] Figure 2 is the partial sectional view of the unmanned aerial vehicle countermeasure device provided by the utility model;
[0023] Main drawing mark explanation:
[0024] 1-unmanned aerial vehicle countermeasure device, 2-first rotating component, 3-first rotating component, 4-mounting plate, 5-base, 6-lifting frame, 21-connection seat, 22-concave plate, 31-fixed shaft, 32-rotating plate, 33-fixed base, 51-sliding groove, 71-wideband antenna array, 72-low noise amplifier, 81-FPGA chip module, 91-wideband power amplifier, 92-programmable filter group. DETAILED DESCRIPTION
[0025] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments 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.
[0026] In the description of the utility model, it needs to be explained that the terms "center", "longitudinal", "transverse"
[0027] The orientation or positional relationship indicated by "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "top", "bottom", "top surface", "bottom surface", "inner", "outer", "inner side", "outer side" and the like is based on the orientation or positional relationship shown in the drawings and is only for the convenience of describing the utility model and simplifying the description, and thus cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and thus cannot be understood as limiting the utility model.
[0028] In the description of the utility model, the meaning of several is one or more, the meaning of multiple is more than two, greater than, less than, more than and the like are understood as not including the number, above, below, within and the like are understood as including the number. If the terms "first", "second", "third" are described, they are only for the purpose of description and distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the sequence of indicated technical features.
[0029] In the description of the utility model, it should be pointed out that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "setting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances. The embodiments of the utility model are described below according to the overall structure of the utility model.
[0030] Referring to Figure 1 An unmanned aerial vehicle countermeasure device, comprising an unmanned aerial vehicle countermeasure device 1, the unmanned aerial vehicle countermeasure device 1 is arranged on the first rotating assembly 2, the first rotating assembly 2 is connected on the second rotating assembly 3, the second rotating assembly 3 is connected on the mounting plate 4, the mounting plate 4 is arranged on the base 5, the base 5 is connected with the lifting frame 6, the driving mechanism is connected in the base 5, and the driving mechanism is connected with the lifting frame 6.
[0031] Referring to Figure 1 The first rotating assembly 2 comprises a connecting seat 21, the connecting seat 21 is rotatably connected on the concave plate 22, the concave plate 22 is connected to the second rotating assembly 3, and the unmanned aerial vehicle countermeasure device 1 is connected on the connecting seat 21 and located in the groove of the concave plate 22. Both ends of the connecting seat 21 are connected to the inner side of the groove of the concave plate 22 through rotating shafts, the rotating shafts can rotate on the concave plate 22, and after the unmanned aerial vehicle countermeasure device 1 is mounted on the connecting seat 21, the operator can adjust the angle of the unmanned aerial vehicle countermeasure device through the rotating shafts.
[0032] Referring to Figure 1 The second rotating component 3 comprises a fixed shaft 31, the output end of which is connected with a rotating plate 32 capable of rotating 360 degrees on the fixed shaft 31, the rotating plate 32 is connected with the concave plate 22 in the first rotating component 2, and the rotating shaft 31 is installed on a fixed base 33 connected with the mounting plate 4.
[0033] Referring to Figure 1 The base 5 is provided with a sliding groove 51, the lifting frame 6 is arranged in the sliding groove 51, and the driving mechanism drives the lifting frame 6 to move up and down in the sliding groove 51.
[0034] Referring to Figure 2 An unmanned aerial vehicle countermeasure system is arranged on the unmanned aerial vehicle countermeasure device 1, and the unmanned aerial vehicle countermeasure system comprises a radio frequency front-end module, an SDR processing unit and a power amplification and filtering module.
[0035] The radio frequency front-end module can cover a frequency band of 1.2GHz-6GHz, and is used for receiving, amplifying and digitizing signals; the SDR processing unit is used for completing signal processing, spectrum analysis and interference waveform generation; and the power amplification and filtering module is used for enhancing the intensity of interference signals and ensuring the purity of the frequency band.
[0036] The radio frequency front-end module comprises a wideband antenna array 71, a low-noise amplifier 72 and a high-speed ADC / DAC, the wideband antenna array 71 is connected with the low-noise amplifier 72, the low-noise amplifier 72 is connected with the high-speed ADC and the high-speed DAC, and the high-speed ADC is connected with the high-speed DAC.
[0037] The wideband antenna array can receive radio frequency signals in a range of 1.2GHz-6GHz, the output interface of the wideband antenna array is connected to the input end of the low-noise amplifier (LNA) through a radio frequency line, the LNA amplifies the received weak signals, the output interface of the LNA is connected to the analog input port of the high-speed ADC, the high-speed ADC converts the amplified analog signals into digital signals, and the output interface of the high-speed ADC is connected to the FPGA chip of the SDR processing unit through a high-speed parallel bus or an optical fiber.
[0038] Therefore, the unmanned aerial vehicle countermeasure device 1 supports a continuous frequency band of 1.2GHz-6GHz, and can cope with commonly used frequency bands of unmanned aerial vehicles such as 1.5GHz GPS, 2.4G remote control and 5.8G image transmission.
[0039] The SDR processing unit includes an FPGA chip module 81 and a GPU acceleration module connected to each other. The FPGA chip receives digital signals from the high-speed ADC, completes signal demodulation, filtering and spectrum analysis, and generates an interference signal corresponding to the interference waveform. The interference waveform data formed by the FPGA chip is sent to the GPU acceleration module for analysis through a high-speed serial interface, and the processed digital signal is sent to the high-speed DAC through a high-speed bus. The GPU acceleration module receives the spectrum data or signal data sent by the FPGA chip, identifies the UAV communication protocol or frequency hopping mode, and feeds back the analysis result to the FPGA chip, which adjusts the interference strategy.
[0040] Among them, the common UAV communication frequency band parameters (such as 1.5GHz GPS, 2.4GHz remote control, 5.8GHz image transmission, etc.) are pre-stored in the FPGA. According to historical interception data, the high-frequency used frequency band parameters are loaded into the cache of the FPGA, and the low-frequency parameters are stored in the external DDR (double rate synchronous dynamic random access memory). Through FPGA parallel processing, the cache parameters are directly called to configure the radio frequency front-end module, bypassing the software layer configuration delay, and realizing the rapid switching of different frequency bands.
[0041] Among them, the power amplification and filtering module includes a wideband power amplifier 91 and a programmable filter bank 92 connected to each other. The high-speed DAC input interface receives the digital signal output by the FPGA, and the output interface is connected to the programmable filter bank. The high-speed DAC converts the digital interference signal generated by the FPGA into an analog signal, and the programmable filter bank can filter out out-of-band noise such as civilian communication frequency bands, etc., to ensure that the interference signal is concentrated in the target frequency band. The interference signal filtered by the programmable filter bank is input to the wideband power amplifier (PA), which amplifies the filtered interference signal to the target power, and then transmits it to the antenna.
[0042] Among them, the high-speed ADC / DAC and FPGA ensure that the signal processing delay is less than 200ms, meeting the urgent interception demand and enhancing the real-time performance of signal interference.
[0043] Among them, the interference strategy set in the FPGA includes a hierarchical interference mode. One is a suppression mode. In this mode, the wideband power amplifier (PA) outputs saturated power to generate Gaussian white noise to cover the target frequency band. At this time, the programmable filter bank is closed for selective filtering, allowing full-band energy radiation, realizing instantaneous interruption of all communication links without protocol identification. This mode is suitable for high-risk targets such as UAVs carrying explosives. Therefore, this mode is usually used less because of its high peak power consumption. Another protocol deception interference mode is generally used, which can trigger the UAV to return or land by forging GPS signals through protocol analysis.
[0044] The unmanned aerial vehicle countermeasure system further comprises a power module and the like, which are arranged in the unmanned aerial vehicle countermeasure device.
[0045] In summary, the unmanned aerial vehicle countermeasure device and system can solve the problem of the operator's hand fatigue when using the unmanned aerial vehicle countermeasure device, and the unmanned aerial vehicle countermeasure device can interfere with multiple frequencies and realize fast switching of frequency bands to achieve real-time and fast interference with multiple frequency bands.
[0046] The foregoing description of specific exemplary embodiments of the present application is presented for the purposes of illustration and description and is not intended to be exhaustive or to limit the application to the precise forms described, and obviously many modifications, alterations, and variations are within the scope of the application as set forth in the above disclosure and claims. Although specific embodiments of the application have been described in detail, these are in no way to be construed as limiting the overall scope of the application. Various changes and modifications can be made thereto by those skilled in the art without departing from the spirit of the application. The description of specific examples is intended to explain the specific principles of the application and its practical applications, so that those skilled in the art can read the specification after reading the specification and drawings, and make modifications, replacements, variations and various different selections and changes to the embodiments without creative contributions, as long as they are within the scope of the claims of the present application.
Claims
1. A drone countermeasure device, characterized by, The unmanned aerial vehicle countermeasure device comprises an unmanned aerial vehicle countermeasure device, a first rotating assembly, a second rotating assembly, a mounting plate, a base, and a lifting frame.
2. The unmanned aerial vehicle countermeasure device of claim 1, wherein, The first rotating assembly comprises a connecting seat, which is rotatably connected to a concave plate, and the concave plate is connected to the second rotating assembly.
3. The unmanned aerial vehicle countermeasure device of claim 1, wherein, The second rotating assembly comprises a fixed shaft, and the fixed shaft is connected to a rotating plate at the output end.
4. The drone countermeasure device of claim 1, wherein, The base is provided with a sliding groove, and the lifting frame is arranged in the sliding groove.
5. A drone countermeasure system, comprising: The countermeasure system is arranged on the unmanned aerial vehicle countermeasure device of any one of claims 1-4, and the unmanned aerial vehicle countermeasure system comprises: A radio frequency front-end module capable of covering a frequency band of 1.2 GHz-6 GHz, which is used for receiving, amplifying, and digitizing signals; An SDR processing unit for completing signal processing, spectrum analysis, and interference waveform generation; A power amplification and filtering module for enhancing the intensity of interference signals and ensuring the purity of the frequency band.
6. The UAV countermeasure system of claim 5, wherein, The radio frequency front-end module comprises a wideband antenna array, a low-noise amplifier, a high-speed ADC, and a high-speed DAC, the wideband antenna array is connected to the low-noise amplifier, the low-noise amplifier is connected to the high-speed ADC and the high-speed DAC, and the high-speed ADC is connected to the high-speed DAC.
7. The UAV countermeasure system of claim 5, wherein, The SDR processing unit comprises an FPGA chip module and a GPU acceleration module connected to each other.
8. The UAV countermeasure system of claim 5, wherein, The power amplification and filtering module comprises a wideband power amplifier and a programmable filter group connected to each other.