CN114719685A - Portable detection and countercheck equipment and method thereof - Google Patents
Portable detection and countercheck equipment and method thereof Download PDFInfo
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Abstract
A portable detection and counter-braking device and a method thereof relate to the technical field of unmanned aerial vehicle interference. The portable detection and countercheck equipment comprises a detection device, an interference device, a switching control device and a power supply device; the detection device is used for detecting a radio signal and outputting a corresponding unmanned aerial vehicle signal to the switching control device, and the switching control device correspondingly controls the interference device to generate a corresponding interference signal; the switching control device comprises a manual mode switch and an automatic mode switch; the manual mode switch and the automatic mode switch are respectively used for controlling the on-off of a control circuit between the switching control device and the interference device; the power supply device is electrically connected with the switching control device. The portable detection and countercheck method comprises portable detection and countercheck equipment. The invention aims to provide portable detection and countermeasures equipment and a method thereof, and solves the technical problems that anti-unmanned aerial vehicle equipment in the prior art is complex in operation and needs to be operated by professionals to a certain extent.
Description
Technical Field
The invention relates to the technical field of unmanned aerial vehicle interference, in particular to portable detection and countercheck equipment and a method thereof.
Background
At present, consumption level and industrial level unmanned aerial vehicle market is growing fast, and the new-type unmanned aerial vehicle that the function is more and more advanced constantly emerges, has brought simultaneously the worry in the aspect of safety and privacy, if unmanned aerial vehicle peeps and infringes privacy right, this regional safety of harm in sensitive area flight to and unmanned aerial vehicle misoperation causes incident etc.. Thus, demand for anti-drones is becoming more and more widespread.
The anti-unmanned aerial vehicle application scene mainly has three aspects: the method is characterized by comprising the following steps of firstly, protecting a no-fly area, such as a sensitive area, an airport, a frontier defense area and the like; sites for preventing information leakage, such as major security activity sites, color ranks of large-scale performances, archaeological excavation sites and large-scale group event sites; thirdly, striking the case that uses the unmanned aerial vehicle as the illegal activity carrier.
The anti-unmanned aerial vehicle system is equipment which prevents the normal operation of the unmanned aerial vehicle and even directly hits the unmanned aerial vehicle when necessary by means of fixed or vehicle-mounted radio, radar, sound wave, photoelectricity, laser and the like; however, these devices are complicated to operate and require professional personnel to operate.
Disclosure of Invention
The invention aims to provide portable detection and countermeasures equipment and a method thereof, and solves the technical problems that anti-unmanned aerial vehicle equipment in the prior art is complex in operation and needs to be operated by professionals to a certain extent.
In order to achieve the purpose, the invention provides the following technical scheme:
a portable detecting and countering device comprises a detecting device, an interference device, a switching control device and a power supply device;
the detection device is used for detecting a radio signal and outputting a corresponding unmanned aerial vehicle signal to the switching control device, and the switching control device correspondingly controls the interference device to generate a corresponding interference signal;
the switching control device comprises a manual mode switch and an automatic mode switch; the manual mode switch and the automatic mode switch are respectively used for controlling the switching-on and switching-off of a control circuit between the switching control device and the interference device;
the power supply device is electrically connected with the switching control device and supplies power to the detection device and the interference device through the switching control device.
In any of the above technical solutions, optionally, the detecting device includes a full-band directional antenna and a detecting circuit component;
the detection circuit component comprises a radio frequency agility transceiver and a data processor;
the full-frequency directional antenna is electrically connected with the radio frequency agility transceiver; the full-frequency directional antenna is used for detecting radio signals and sending the detected radio signals to the radio frequency agility transceiver;
the radio frequency agility transceiver is electrically connected with the data processor; the radio frequency agility transceiver is used for processing the received radio signals and sending the radio signals to the data processor, and the data processor is used for comparing the radio signals with a pre-stored data feature library and judging whether the radio signals are unmanned aerial vehicle signals;
the data processor is used for sending an unmanned aerial vehicle signal to the switching control device.
In any of the above technical solutions, optionally, the detection circuit assembly further includes a balun transformer and an analog-to-digital converter; the full-frequency directional antenna is electrically connected with the radio frequency agility transceiver through the balun transformer; the radio frequency agility transceiver is electrically connected with the data processor through the analog-to-digital converter;
the balun transformer is used for converting the wireless single-ended electric signal detected by the full-frequency directional antenna into a differential radio-frequency signal and sending the differential radio-frequency signal to the radio-frequency agility transceiver;
the radio frequency agility transceiver is used for enabling the differential radio frequency signals to be converted into zero intermediate frequency signals through the frequency conversion, converting the zero intermediate frequency signals into digital signals through the analog-digital converter and sending the digital signals to the data processor.
In any of the above technical solutions, optionally, the operating frequency band of the full-frequency directional antenna includes one or more of a 1430MHz-1444MHz frequency band, a 2400MHz-2476MHz frequency band, a 5725MHz-5829MHz frequency band, and a 902MHz-928MHz frequency band of GSM;
the full-frequency directional antenna adopts a logarithmic antenna in a printed circuit board form;
the data processor comprises an FPGA processor and an ARM processor; the FPGA is used for acquiring the radio signals detected by the full-frequency directional antenna processed by the radio frequency agility transceiver, acquiring acquired data and sending the acquired data to the ARM processor; the ARM processor is used for comparing the acquired data with a pre-stored data characteristic library and judging whether the acquired data is an unmanned aerial vehicle signal or not;
the FPGA processor and the ARM processor are arranged on the same chip;
the transfer control device also includes a timer electrically connected to the radio frequency agile transceiver.
In any of the above technical solutions, optionally, the interference device includes an interference antenna group and a power amplifier device; the interference antenna group comprises interference antennas with the number corresponding to that of the power amplifier devices;
the interference antenna is electrically connected with the switching control device through the power amplifier device.
In any of the above technical solutions, optionally, the interference antenna group is of an integrated structure;
the power amplifier device adopts an integrated structure of a signal generator and a power amplifier;
the interference antenna is electrically connected with the power amplifier device through a radio frequency cable;
the working frequency of the power amplifier device comprises one or more of 900MHz, 1.5GHz, 2.4GHz, 5.8GHz, a GPS frequency band, a Beidou frequency band and a Glonass frequency band.
In any of the above technical solutions, optionally, the switching control device includes a radio frequency switch electrically connected to the detection device;
when the interference device works, the switching control device is used for controlling the radio frequency switch to be switched off so as to switch off the detection device;
the detecting device and the interference device are arranged side by side;
further optionally, the transfer control device comprises the time delay electrically connected with the interference device;
when the detection device outputs a corresponding unmanned aerial vehicle signal to the switching control device, the switching control device is used for controlling the radio frequency switch to be switched off and controlling the delayer to work so as to enable the interference device to work in a delayed mode.
In any of the above technical solutions, optionally, the switching control device is electrically connected with a sound output device; the sound output device is used for outputting sound when the interference device works normally;
the switching control device is provided with a sound switch for controlling the on-off of the sound output device; the sound output device comprises a speaker;
the switching control device comprises a main switch electrically connected with the power supply device;
the switching control device comprises a high level output end and a low level output end; the high-level output end is electrically connected with the power supply device through the main switch; the power supply device is electrically connected with a transformer through the main switch, and the transformer is electrically connected with the low level output end.
In any of the above technical solutions, optionally, the portable detecting and countering device further includes a housing; the detection device, the interference device and the power supply device are respectively arranged in the shell;
the switching control device is connected with the shell.
The shell is a gun-shaped shell; the shell is made of high-strength plastic.
The top of the shell is provided with a sighting telescope;
the manual mode switch is a trigger switch, and the automatic mode switch is a key switch.
A portable detection and countercheck method comprises a portable detection and countercheck device; when the portable detection and countercheck equipment is in an automatic mode, the automatic mode switch is in a connected state;
the method comprises the following steps:
the detection device detects a radio signal and outputs a corresponding unmanned aerial vehicle signal to the switching control device;
when the portable detection and countercheck equipment is in an automatic mode or a manual mode switch is operated, the switching control device controls the detection device to be switched off and controls the interference device to generate a corresponding interference signal in a delayed mode.
The invention has the following beneficial effects:
the invention provides portable detection and countercheck equipment and a method thereof, comprising a detection device, an interference device, a switching control device and a power supply device; the portable performance of the portable detection anti-braking equipment can be realized through the power supply device; radio signal is listened through the detection device to output corresponding unmanned aerial vehicle signal to switching control device, switching control device corresponds control interference device and produces corresponding interfering signal transmission to target unmanned aerial vehicle, can realize automatic detection, automatic counter-system and the luring of unmanned aerial vehicle, and the automatic mode switch of operation can automatic operation after the start, does not need the professional operation, can realize unmanned on duty function, also can carry out traditional control through operating manual mode switch simultaneously.
In order to make the aforementioned and other objects, features and advantages of the present application more comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of a portable detection and countermeasure device according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a detection device according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a portable detection and countermeasure device according to an embodiment of the present invention;
FIG. 4 is a front view of the portable detection and countermeasure device of FIG. 3;
FIG. 5 is a sectional view taken along line A-A of the portable detection countermeasure apparatus shown in FIG. 4;
FIG. 6 is a sectional view of the portable detection countermeasure apparatus shown in FIG. 4 taken along line B-B;
fig. 7 is a simulation gain diagram of the full-band directional antenna provided in the embodiment of the present invention at 1.561 GHz;
fig. 8 is a simulation gain diagram of the full-band directional antenna provided in the embodiment of the present invention at 2.4 GHz.
Icon: 100-a detection device; 110-full frequency directional antenna; 120-detecting a circuit component; 121-a radio frequency agile transceiver; 122-a data processor; 123-balun transformer; 124-analog-to-digital converter; 200-a jamming device; 210-interfering antenna group; 220-a power amplifier device; 300-a transfer control device; 310-manual mode switch; 320-automatic mode switch; 330-radio frequency switch; 340-a delayer; 350-main switch; 400-a power supply device; 500-a sound output device; 510-a sound switch; 600-a housing; 610-sighting telescope.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Some embodiments of the invention are described in detail below with reference to the accompanying drawings. The embodiments and features of the embodiments described below can be combined with each other without conflict.
Examples
The embodiment provides a portable detection and countercheck device and a method thereof; referring to fig. 1 to 8, fig. 1 is a schematic structural diagram of a portable detection and countermeasure device according to the present embodiment; fig. 2 is a schematic structural diagram of the detection device according to the present embodiment; fig. 3 is a schematic structural diagram of the portable detection and countermeasure device provided in this embodiment, fig. 4 is a front view of the portable detection and countermeasure device shown in fig. 3, fig. 5 is a sectional view of the portable detection and countermeasure device shown in fig. 4 taken along a direction a-a, and fig. 6 is a sectional view of the portable detection and countermeasure device shown in fig. 4 taken along a direction B-B, in order to show the structure more clearly. To more clearly understand the gain of the full-frequency directional antenna, fig. 7 is a simulated gain diagram of the full-frequency directional antenna provided in this embodiment at 1.561GHz, and fig. 8 is a simulated gain diagram of the full-frequency directional antenna provided in this embodiment at 2.4 GHz.
The portable countercheck equipment of listening that this embodiment provided can make the civilian microminiature unmanned aerial vehicle that gets into its coverage and can't acquire satellite positioning information, cuts off remote control signal and image transmission signal between unmanned aerial vehicle and the ground controller, prevents unmanned aerial vehicle's normal operating, forces unmanned aerial vehicle to descend or return to the journey.
Referring to fig. 1-6, the portable detection and countermeasure equipment includes a detection device 100, an interference device 200, a transfer control device 300 and a power supply device 400.
The detecting device 100 is used for detecting a radio signal and outputting a corresponding unmanned aerial vehicle signal to the transfer control device 300, and the transfer control device 300 correspondingly controls the interference device 200 to generate a corresponding interference signal; receiving a radio signal in an external environment, for example, receiving a radio frequency signal, in real time by the detection device 100; and generating a corresponding interference signal through the interference device 200 so as to interfere the normal operation of the unmanned aerial vehicle.
The power supply device 400 is electrically connected to the switching control device 300, and the power supply device 400 supplies power to the detection device 100 and the interference device 200 through the switching control device 300. The portable performance of the portable detection and countermeasure device can be realized by the power supply device 400.
In this embodiment, the portable detection and countermeasure equipment includes a detection device 100, an interference device 200, a transfer control device 300 and a power supply device 400; the portable performance of the portable detection and control equipment can be realized through the power supply device 400; detect radio signal through detection device 100 to output corresponding unmanned aerial vehicle signal to switching controlling means 300, switching controlling means 300 corresponds control interference device 200 and produces corresponding interfering signal transmission to target unmanned aerial vehicle, can realize automatic the detection to unmanned aerial vehicle, automatic counter-system and luring out, the automatic mode switch 320 of operation can the automatic operation after the start, do not need the professional operation, can realize unmanned on duty function, also can carry out traditional control through operating manual mode switch 310 simultaneously.
At present, anti-unmanned aerial vehicle equipment is of various types, and detection and interference are carried out by radio communication means, wherein the types of the anti-unmanned aerial vehicle equipment are as follows: the equipment which is fixedly installed and vehicle-mounted installed at the high positions such as an iron tower, a roof and the like has large volume and is troublesome to install due to the fact that power supply and network supply are needed although the equipment can integrate the functions of detection and interference integration; the existing portable equipment mainly uses single detection or single interference, few equipment integrating detection and interference is adopted, and even if the existing portable equipment exists, the two kinds of equipment are only physically connected, and the automatic/manual linkage function cannot be realized. The portable detection and countercheck equipment integrates three functions of detection, countercheck and trapping, is switched by the switching control device 300, can realize automatic/manual linkage of the equipment, and can realize automatic detection and countercheck and decoy and manual detection of the countercheck and the trapping of the unmanned aerial vehicle. The portable detection and countercheck equipment belongs to portable equipment which is easy to operate and stable in performance.
Referring to fig. 1 and fig. 2, in an alternative embodiment, the detecting device 100 includes a full-band directional antenna 110 and a detecting circuit assembly 120.
The detection circuit assembly 120 includes a radio frequency agile transceiver 121 and a data processor 122; optionally, the radio frequency agility transceiver 121 employs a radio frequency agility transceiver of a zero intermediate frequency structure; the rf agile transceiver 121 may be configured to convert the radio signal detected by the full frequency directional antenna 110 from the rf front end to the baseband data stream. For example, the radio frequency agile transceiver 121 employs an AD9361 chip. The radio frequency signal input frequency range of the AD9361 chip is 70 MHz-6 GHz, and the analog signal bandwidth range is 200 KHz-56 MHz. The AD9361 chip receiving channel has three low noise amplifiers ABC, 6 paths of differential or 12 paths of single-end input modes, the working frequency of the low noise amplifiers is 70 MHz-6 GHz, the dynamic range of differential input is large, and the even harmonic distortion is small. According to China radio frequency, 1430-1444 MHz frequency band, 2400-2476 MHz frequency band and 5725-5829 MHz frequency band are divided for unmanned aerial vehicles, and in addition, some unmanned aerial vehicles adopt GSM902MHz-928MHz frequency band, and the radio frequency transceiving frequency band of an AD9361 chip can completely cover the frequency bands.
The full-frequency directional antenna 110 is electrically connected with the radio frequency agility transceiver 121; the full frequency directional antenna 110 is used to detect the radio signal and send the detected radio signal to the rf agile transceiver 121.
The radio frequency agility transceiver 121 is electrically connected to the data processor 122; the radio frequency agility transceiver 121 is configured to process the received radio signal and send the radio signal to the data processor 122, and the data processor 122 is configured to compare the radio signal with a pre-stored data feature library and determine whether the radio signal is an unmanned aerial vehicle signal; the data characteristic library is prestored in the data processor 122, so that the portable detection and countercheck equipment can work normally without being connected to a network.
The data processor 122 is configured to send the drone signal to the transfer control device 300, and the transfer control device 300 correspondingly controls the interference device 200 to generate a corresponding interference signal to interfere with the normal operation of the drone.
Further optionally, the detection circuit assembly 120 further includes a balun 123 and an analog-to-digital converter 124; the full-band directional antenna 110 is electrically connected with the radio frequency agility transceiver 121 through the balun 123; the radio frequency agility transceiver 121 is electrically connected to the data processor 122 via an analog to digital converter 124.
The balun transformer 123 is configured to convert the wireless single-ended electrical signal detected by the full-band directional antenna 110 into a differential radio frequency signal, and send the differential radio frequency signal to the radio frequency agility transceiver 121; conversion from single-ended transmission to differential transmission is accomplished by a balun 123.
The rf agile transceiver 121 is configured to convert the differential rf signal into a zero if signal, and convert the zero if signal into a digital signal through the adc 124, and send the digital signal to the data processor 122. The digital signal is processed by a series of algorithms in the data processor 122 to output the corresponding detection result according to the requirement, and controls the corresponding power amplifier and sound output device according to the requirement.
The detecting device 100 of the embodiment includes a full-band directional antenna 110 and a detecting circuit assembly 120, wherein the detecting circuit assembly 120 includes a radio frequency agility transceiver 121, a data processor 122, a balun converter 123 and an analog-to-digital converter 124, the full-band directional antenna 110, the radio frequency agility transceiver 121, the data processor 122, the balun converter 123 and the analog-to-digital converter 124 cooperate to form a zero-if software radio scheme, the radio frequency signals are directly mixed to two radio frequency signals of a baseband, the baseband signals are sampled and quantized by the analog-to-digital converter 124, and then the data processor 122 performs fourier transform on the baseband signals, so that spectral features are extracted to facilitate identification.
In the alternative of this embodiment, the working frequency band of the full-frequency directional antenna 110 includes one or more of a 1430MHz-1444MHz frequency band, a 2400MHz-2476MHz frequency band, a 5725MHz-5829MHz frequency band, and a 902MHz-928MHz frequency band of GSM; or the operating frequency band of the full frequency directional antenna 110 may include other frequency bands.
In an alternative of this embodiment, the full-band directional antenna 110 is a logarithmic antenna in the form of a printed circuit board; since the portable detection and counter-measure equipment requires small volume, the detection device 100 can cover the frequency points without occupying too much space, and therefore, a logarithmic antenna in the form of a printed circuit board is selected. Optionally, the full frequency directional antenna 110 is 280cm × 130cm in size. Have higher gain in common unmanned aerial vehicle's spectral range, compare with omnidirectional rod antenna, full frequency directional antenna 110 has higher gain and directionality, is favorable to judging the approximate position of unmanned aerial vehicle signal, and can compare the gain that rod antenna is about 4db ~ 7db higher in this direction, has reduced the threshold of surveying, can improve the receiving sensitivity, can improve the directionality of judging unmanned aerial vehicle signal. As shown in fig. 7 and 8, fig. 7 and 8 are gain diagrams of the full-frequency directional antenna 110 simulated by using hfss software in all directions, and take 1.561GHz and 2.4GHz as examples, and randomly list angles and gains of 5 points; the operating frequency of the full-band directional antenna 110 shown in fig. 7 is 1.561GHz, and the operating frequency of the full-band directional antenna 110 shown in fig. 8 is 2.4 GHz; in the figure, theta represents a pitch angle, ang represents an azimuth angle, mag represents a gain value, a solid line represents a pitch angle curve, and a dashed dotted line represents an azimuth angle curve. The table of fig. 7 is to be read as: m2, theta is-34 degrees, ang is 0 degrees, and the gain value mag of the full-frequency directional antenna 110 is 5.0728 dB; point m2, ang-34 ° theta 0 °, mag 5.0728 dB; point m3, theta 34 °, ang 0 °, mag 4.8239 dB; m3, ang 34 °, theta 0 °, mag 4.8239 dB. Fig. 7 and 8 are simulation diagrams showing that the full-band directional antenna 110 is a log antenna in the form of a printed circuit board, which has high antenna gain and can reduce the detection threshold.
In an alternative of this embodiment, the data processor 122 includes an FPGA processor and an ARM processor; the FPGA device is used for acquiring radio signals detected by the full-frequency directional antenna 110 processed by the radio frequency agility transceiver 121, acquiring acquired data and sending the acquired data to the ARM processor; the ARM processor is used for enabling the collected data to be compared with a pre-stored data characteristic base and judging whether the collected data are unmanned aerial vehicle signals or not. This embodiment ARM treater, through the data collection that the analysis was received, can extract the spectral feature of data collection to through matching this spectral feature with the unmanned aerial vehicle data feature library that prestores, whether the signal that can accurate discernment FPGA ware was gathered is the unmanned aerial vehicle signal, thereby accurate discernment unmanned aerial vehicle. Compare in current manual identification unmanned aerial vehicle, can realize unmanned aerial vehicle's the early warning that draws far away. The FPGA device is named as a Field Programmable Gate Array device in Chinese and is called a Field Programmable Gate Array in English. The ARM processor is known collectively in English as the Advanced RISC Machine.
Optionally, an ARM processor and the transfer control device 300, the ARM processor is configured to send a signal of the drone to the transfer control device 300, and the transfer control device 300 correspondingly controls the interference device 200 to generate a corresponding interference signal, so as to accurately interfere and strike the drone.
Optionally, the FPGA processor and the ARM processor are disposed on the same chip to ensure reliability of high-speed data transmission between the FPGA processor and the ARM processor. For example, Zynq-7000 series xc7z020-clg484-3 FPGA embedded with dual-core ARM is selected.
In an alternative of this embodiment, the transfer control device 300 further includes a timer electrically connected to the radio frequency agile transceiver 121. By means of a timer, the accuracy of the radio frequency agile transceiver 121 is improved; the switching control device 300 can also confirm the sweep frequency time, the state acquisition period, the interference time control and the like through the timer.
Referring to fig. 1, in an alternative of this embodiment, the interfering device 200 includes an interfering antenna group 210 and a power amplifier device 220; the interference antenna group 210 includes interference antennas corresponding to the number of the power amplifying devices 220; optionally, the number of the interfering antennas is the same as that of the power amplifier device 220.
The interference antenna is electrically connected with the switching control device 300 through the power amplifier device 220. The power amplifier device 220 launches and enlargies the interference frequency channel, will disturb the frequency channel transmission to target unmanned aerial vehicle via interfering antenna, can make unmanned aerial vehicle unable acquisition satellite positioning information, still can cut off remote control signal and image transmission signal between unmanned aerial vehicle and the ground controller, forces unmanned aerial vehicle to descend or return a journey.
Optionally, the interference antenna is electrically connected to the power amplifier 220 through a radio frequency cable.
In an alternative of this embodiment, the interference antenna group 210 adopts an integrated structure to improve effective interference to the target. The interfering antenna should have the characteristics of orientation and high gain, and it is required that a plurality of interfering antennas of the interfering antenna group 210 are not shielded, and the existing plurality of interfering antennas are designed independently, so as to reduce mutual signal shielding, and it has a high requirement on spatial layout and occupies a large space. The interference antenna group 210 adopts an integrated structure, so that the coupling and shielding among the interference antennas can be reduced as much as possible while the integration level of the interference antennas is increased, and the effective interference on a target can be improved.
In an alternative of this embodiment, the power amplifier device 220 adopts an integrated structure of a signal generator and a power amplifier; the research and development design period can be shortened, and the stability of the power amplifier device 220 can be improved.
In an alternative of this embodiment, the operating frequency of the power amplifier 220 includes one or more of 900MHz, 1.5GHz, 2.4GHz, 5.8GHz, a GPS frequency band, a beidou frequency band, and a Glonass frequency band, and the operating frequency of the power amplifier 220 may further include other frequency bands.
Referring to fig. 1-6, in an alternative embodiment, the switching control device 300 includes an rf switch 330 electrically connected to the detection device 100.
When the interference apparatus 200 works, the switching control apparatus 300 is configured to control the rf switch 330 to be turned off to turn off the detection apparatus 100.
The electromagnetic wave emitted by the jamming device 200 is also received by the detection device 100, and the stronger emitted power may damage the rf device of the detection circuit assembly 120 of the detection device 100, so that a rf switch 330 is integrated in the switching control device 300, and the purpose of protecting the detection circuit is achieved by turning off the rf switch 330 while the jamming device 200 emits the electromagnetic wave.
Optionally, the detecting device 100 and the disturbing device 200 are arranged side by side to reduce the size of the portable detecting and countering apparatus.
Optionally, transfer control device 300 includes a delay 340 electrically connected to jamming device 200.
When the detecting device 100 outputs a corresponding drone signal to the relay control device 300, the relay control device 300 is configured to control the rf switch 330 to be turned off and the time delay 340 to operate, so as to delay the operation of the jamming device 200. Through the cooperation of the delay 340 and the rf switch 330, the interference signal emitted by the interference device 200 can be effectively prevented from being fed through the full-band directional antenna 110 of the detection device 100, which results in the damage of the rf channel of the detection circuit, and the detection device 100 can be effectively protected.
Referring to fig. 1-6, in an alternative to the present embodiment, the transfer control device 300 is electrically connected to an audio output device 500; the sound output device 500 is used for outputting sound when the interference device 200 is normally operated. The sound output device 500 can be used to judge whether the interference device 200 is in a normal working state, and can also give out a corresponding alarm.
Optionally, the switching control device 300 is provided with a sound switch 510 for controlling the on/off of the sound output device 500; through the sound switch 510, the sound output device 500 may be turned off when muting is required, so that the sound output device 500 does not emit sound.
Alternatively, the sound output device 500 includes a speaker, or other sound generating device.
Optionally, the transfer control device 300 includes a main switch 350 electrically connected to the power supply device 400; the main switch 350 is used to control the on/off of the circuit of the portable detecting and countering device.
Optionally, the switching control device 300 includes a high level output terminal and a low level output terminal; the high level output terminal is electrically connected with the power supply device 400 through the main switch 350; the power supply device 400 is electrically connected to a transformer, which is electrically connected to the low level output terminal, through the main switch 350. The high-level output end, the low-level output end and the transformer are arranged on the switching control device 300, so that the interference device 200 can work independently, and the reliability of the portable detection and control device can be improved.
Alternatively, the power supply device 400 employs a lithium battery, or other storage batteries.
Referring to fig. 3-6, in an alternative of this embodiment, the portable detecting and countering device further includes a housing 600; the detecting device 100, the interference device 200 and the power supply device 400 are respectively disposed inside the casing 600.
The transfer control apparatus 300 is connected to the housing 600.
Optionally, the housing 600 is a gun-type housing for ease of carrying.
Optionally, the material used for the housing 600 is high-strength plastic. The casing 600 is made of high-strength plastic, so that the durability of the portable detection and control device is improved, and the weight of the portable detection and control device can be effectively reduced.
Optionally, the housing 600 is formed by injection molding, numerical control milling, 3D printing, or the like.
Optionally, a sighting telescope 610 is disposed on the top of the housing 600; through gun sight 610, the people of being convenient for look for unmanned aerial vehicle manually.
Referring to fig. 3-6, in an alternative to the present embodiment, the manual mode switch 310 is a trigger switch to facilitate operation of the manual mode switch 310.
Optionally, the automatic mode switch 320 is a key switch.
The portable detection and counter-braking device has the advantages of light weight, small volume, compact structure and attractive appearance, and adopts a gun-shaped shell by combining with ergonomic design. The portable detection and countercheck equipment adopts a linkage design, can automatically operate the detection, countercheck and trapping of the unmanned aerial vehicle, and can also manually carry out traditional control through a manual mode switch 310; this portable reconnaissance countering equipment is the integrated design, highly integrated unmanned aerial vehicle listen, unmanned aerial vehicle countering, three kinds of functions of unmanned aerial vehicle navigation decoy. The portable detection and counter-measure equipment is designed in a portable gun type, for example, the weight is 4 kilograms, and a single person can conveniently use the equipment without connecting an electric network.
The embodiment also provides a portable detection and countermeasure method, which comprises the portable detection and countermeasure equipment of any embodiment; when the portable detection countermeasure device is in the automatic mode, the automatic mode switch 320 is in the on state and the manual mode switch 310 is in the off state.
The method comprises the following steps:
the detecting device 100 detects a radio signal and outputs a corresponding signal of the unmanned aerial vehicle to the transfer control device 300;
when the portable detection and countermeasure device is in the automatic mode or the manual mode switch 310 is operated, the switching control device 300 controls the detection device 100 to be turned off, and controls the interference device 200 to generate a corresponding interference signal in a delayed manner.
In the portable detection and countermeasure method provided by this embodiment, the portable performance of the portable detection and countermeasure device can be realized by the power supply device 400; the radio signal is detected by the detection device 100, and a corresponding unmanned aerial vehicle signal is output to the switching control device 300, the switching control device 300 correspondingly controls the interference device 200 to generate a corresponding interference signal to be transmitted to a target unmanned aerial vehicle, automatic detection, automatic counter-braking and luring can be realized for the unmanned aerial vehicle, the automatic mode switch 320 can be operated automatically after the unmanned aerial vehicle is started, the operation of a professional is not needed, the unattended function can be realized, and meanwhile, the traditional control can be carried out by operating the manual mode switch 310.
Optionally, after the main switch 350 is turned on, the data processor 122 of the detection circuit assembly 120 is connected to the power supply device 400 through the switching control device 300, and initializes hardware such as the full-band directional antenna 110 and the rf agile transceiver 121 after automatically loading the peripheral hardware resources.
Then, the full-band directional antenna 110 is used for detecting the radio signal and sending the detected radio signal to the rf agile transceiver 121; the radio frequency agility transceiver 121 is configured to process the received radio signal and send the radio signal to the data processor 122, and the data processor 122 is configured to compare the radio signal with a pre-stored data feature library and determine whether the radio signal is an unmanned aerial vehicle signal.
If the signal is an unmanned aerial vehicle signal, the data processor 122 sends the unmanned aerial vehicle signal to the transfer control device 300, and the transfer control device 300 correspondingly controls the interference device 200 to generate a corresponding interference signal so as to interfere the normal operation of the unmanned aerial vehicle.
Further optionally, the wireless single-ended electrical signal detected by the full-band directional antenna 110 is converted into a differential rf signal by the balun 123, and is sent to the rf agile transceiver 121. The rf agile transceiver 121 is configured to convert the differential rf signal into a zero if signal, and convert the signal into a digital signal through the adc 124 and send the digital signal to the data processor 122.
Optionally, the transfer control device 300 further comprises a timer electrically connected to the radio frequency agility transceiver 121. The timer is used for frequency sweeping and state acquisition and is responsible for switching the center frequency of the acquired signal and the running state duration.
The portable detection and countermeasure equipment described in the embodiment is exemplified; for example, after the main switch 350 is turned on, the power amplifier device 220 is powered on, and at the same time, other devices requiring a low level are powered through the transformer, at this time, the control gate circuit of the power amplifier device 220 is not powered on, the control level cannot reach the power amplifier device 220, the power amplifier device 220 controls the pin to default to the low level, the power amplifier does not transmit, when the manual mode switch 310 is buckled or the portable detection and counter-braking device is in the automatic mode, the high level reaches the delay circuit of the radio frequency switch 330 and the delay device 340, the radio frequency switch 330 is turned off first, and after the delay device 340 delays for a preset time, the interference device 200 transmits an interference signal, so that the radio frequency channel of the detection circuit assembly 120 is prevented from being damaged due to the fact that the interference signal is fed through the full-frequency directional antenna 110 of the detection device 100, and a protection effect is achieved; the level command of the manual mode switch 310 is also sent to the audio output device 500 through the audio interface to provide an audio indication to the user that the device is transmitting. Optionally, the priority of the manual mode switch 310 is higher than that of the automatic mode switch 320, the manual mode switch 310 also provides a low level signal to the detection circuit assembly 120 while the manual mode switch 310 is activated, the detection circuit assembly 120 determines whether to execute the automatic detection counter-braking procedure according to the automatic mode switch 320, and controls the sound output device 500 to emit a corresponding warning sound according to the detected condition and the procedure. Alternatively, if the detection circuit assembly 120 is not installed, the jamming function of the jamming device 200 can still be implemented independently.
The portable detection and countermeasure method provided by the embodiment includes the portable detection and countermeasure device, the technical features of the portable detection and countermeasure device disclosed above are also applicable to the portable detection and countermeasure method, and the technical features of the portable detection and countermeasure device disclosed above are not described repeatedly. The portable detection countermeasure method of the present embodiment has the advantages of the portable detection countermeasure device, and the advantages of the portable detection countermeasure device disclosed above will not be described again.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A portable detection and countercheck device is characterized by comprising a detection device, an interference device, a switching control device and a power supply device;
the detection device is used for detecting a radio signal and outputting a corresponding unmanned aerial vehicle signal to the switching control device, and the switching control device correspondingly controls the interference device to generate a corresponding interference signal;
the switching control device comprises a manual mode switch and an automatic mode switch; the manual mode switch and the automatic mode switch are respectively used for controlling the switching-on and switching-off of a control circuit between the switching control device and the interference device;
the power supply device is electrically connected with the switching control device and supplies power to the detection device and the interference device through the switching control device.
2. The portable detection and countermeasure apparatus of claim 1, wherein the detection device comprises a full frequency directional antenna and detection circuitry components;
the detection circuit component comprises a radio frequency agility transceiver and a data processor;
the full-frequency directional antenna is electrically connected with the radio frequency agility transceiver; the full-frequency directional antenna is used for detecting radio signals and sending the detected radio signals to the radio frequency agility transceiver;
the radio frequency agility transceiver is electrically connected with the data processor; the radio frequency agility transceiver is used for processing the received radio signals and sending the radio signals to the data processor, and the data processor is used for comparing the radio signals with a pre-stored data feature library and judging whether the radio signals are unmanned aerial vehicle signals;
the data processor is used for sending an unmanned aerial vehicle signal to the switching control device.
3. The portable detection countermeasure apparatus of claim 2, wherein the detection circuit assembly further includes a balun and an analog-to-digital converter; the full-frequency directional antenna is electrically connected with the radio frequency agility transceiver through the balun transformer; the radio frequency agility transceiver is electrically connected with the data processor through the analog-to-digital converter;
the balun transformer is used for converting the wireless single-ended electrical signal detected by the full-frequency directional antenna into a differential radio-frequency signal and sending the differential radio-frequency signal to the radio-frequency agility transceiver;
the radio frequency agility transceiver is used for enabling the differential radio frequency signals to be converted into zero intermediate frequency signals through the frequency conversion, converting the zero intermediate frequency signals into digital signals through the analog-digital converter and sending the digital signals to the data processor.
4. The portable detection and response apparatus of claim 2, wherein the operating frequency band of the full-band directional antenna comprises one or more of a 1430-1444 MHz frequency band, a 2400-2476 MHz frequency band, a 5725-5829 MHz frequency band, and a 902-928 MHz frequency band of GSM;
the full-frequency directional antenna adopts a logarithmic antenna in a printed circuit board form;
the data processor comprises an FPGA processor and an ARM processor; the FPGA is used for acquiring the radio signals detected by the full-frequency directional antenna processed by the radio frequency agility transceiver, acquiring acquired data and sending the acquired data to the ARM processor; the ARM processor is used for comparing the acquired data with a pre-stored data characteristic library and judging whether the acquired data are unmanned aerial vehicle signals or not;
the FPGA processor and the ARM processor are arranged on the same chip;
the transfer control device also includes a timer electrically connected to the radio frequency agile transceiver.
5. A portable detection and counter-measure apparatus as claimed in any one of claims 1 to 4, wherein said interference means comprises an interference antenna set and a power amplifier means; the interference antenna group comprises interference antennas with the number corresponding to that of the power amplifier devices;
the interference antenna is electrically connected with the switching control device through the power amplifier device.
6. The portable detection and countermeasure apparatus of claim 5, wherein the set of interference antennas is of an integral construction;
the power amplifier device adopts an integrated structure of a signal generator and a power amplifier;
the interference antenna is electrically connected with the power amplifier device through a radio frequency cable;
the working frequency of the power amplifier device comprises one or more of 900MHz, 1.5GHz, 2.4GHz, 5.8GHz, GPS frequency band, Beidou frequency band and Glonass frequency band.
7. A portable detection and countermeasure apparatus according to any of claims 1-4, wherein the transfer control device comprises a radio frequency switch electrically connected to the detection device;
when the interference device works, the switching control device is used for controlling the radio frequency switch to be switched off so as to switch off the detection device;
the detecting device and the interference device are arranged side by side;
further optionally, the transfer control device comprises the time delay electrically connected with the interference device;
when the detection device outputs a corresponding unmanned aerial vehicle signal to the switching control device, the switching control device is used for controlling the radio frequency switch to be switched off and controlling the delayer to work so as to enable the interference device to work in a delayed mode.
8. The portable detection and countermeasure apparatus according to any of claims 1-4, wherein the switching control device is electrically connected to an audio output device; the sound output device is used for outputting sound when the interference device works normally;
the switching control device is provided with a sound switch for controlling the on-off of the sound output device; the sound output device comprises a speaker;
the switching control device comprises a main switch electrically connected with the power supply device;
the switching control device comprises a high level output end and a low level output end; the high-level output end is electrically connected with the power supply device through the main switch; the power supply device is electrically connected with a transformer through the main switch, and the transformer is electrically connected with the low level output end.
9. A portable detection and counter-measure apparatus according to any of claims 1-4, further comprising a housing; the detection device, the interference device and the power supply device are respectively arranged in the shell;
the switching control device is connected with the shell;
the shell is a gun-shaped shell; the shell is made of high-strength plastic;
the top of the shell is provided with a sighting telescope;
the manual mode switch is a trigger switch, and the automatic mode switch is a key switch.
10. A portable detection countermeasure method, characterized by comprising the portable detection countermeasure apparatus according to any one of claims 1 to 9; when the portable detection and countercheck equipment is in an automatic mode, the automatic mode switch is in a connected state;
the method comprises the following steps:
the detection device detects a radio signal and outputs a corresponding unmanned aerial vehicle signal to the switching control device;
when the portable detection and countercheck equipment is in an automatic mode or a manual mode switch is operated, the switching control device controls the detection device to be switched off and controls the interference device to generate a corresponding interference signal in a delayed mode.
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