CN204993363U - Unmanned aerial vehicle signal processing device - Google Patents
Unmanned aerial vehicle signal processing device Download PDFInfo
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- CN204993363U CN204993363U CN201520593213.XU CN201520593213U CN204993363U CN 204993363 U CN204993363 U CN 204993363U CN 201520593213 U CN201520593213 U CN 201520593213U CN 204993363 U CN204993363 U CN 204993363U
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Abstract
The utility model provides an unmanned aerial vehicle signal processing device, the device includes receiving module (1), monitoring module (2), early warning module (3), interruption module (4) and emission module (5), early warning module (3) are including memory cell (10) of storage unmanned aerial vehicle frequency domain data and the current frequency domain data and memory cell (10) the well unmanned aerial vehicle frequency domain data of saving comparing element (11) relatively of sending spectrum analysis unit (9), in the time of in the comparative result is in the preset range, the alarm is sent in early warning module (3), interruption module (4) including baseband signal generator (12) of setting for the baseband signal frequency, with the baseband signal modulation for noise signal jammer modulation ware (13), increase noise power's work amplifier (14) and combiner (15) that merge the noise band of difference. The utility model discloses a listen unmanned aerial vehicle working frequency band, early warning unmanned aerial vehicle approaches flight and prevents unmanned aerial vehicle to approach flight regionally to the security protection that receives the protection in advance.
Description
Technical field
The utility model belongs to the early warning in aircraft early warning field, particularly unmanned vehicle, and it relates to a kind of unmanned plane signal processing apparatus.
Background technology
Current unmanned plane has started the daily life getting involved broad masses widely.Unmanned plane owing to can complete taking off and landing straight up and down, and can aloft hover, and flight is more flexible, so compared to traditional fixed-wing formula aircraft, have himself feature, and be widely applied.Existing regulation is not also very perfect for the flight management in navigation field, but not high for flying height, is often in the unmanned plane in horizon range, current supervision or a blank.
Although, unmanned plane taking photo by plane, logistics, in patrol etc., start to give consumers in general with brand-new experience, and gather around and have a wide range of applications, simultaneously, unmanned plane, without the flight of supervision, also can be with and serve puzzlement.Because the quality level of aircraft own differs, the manipulation level difference flying hand controlling aircraft is also very large, so the news that unmanned plane is strayed into some no-fly zones is of common occurrence.Such as, the news that four-axle aircraft swarms into the news at the White House, four-axle aircraft leaps district of government, Paris.Even, also induce some sensitive people and worry, bad personage may be had and handle four-axle aircraft to implement and take on the sly.
In emphasis security protection region, if unmanned plane approaches flight, then need defensive measure of taking the initiative, prevent unmanned plane from approaching shooting, illegal transmission of information, even carry dangerous material and enter emphasis security protection region.Therefore there is the demand detected and resist unmanned plane during flying in emphasis security protection region.
Patent CN202261322U discloses a kind of radio signal suppression system, it is characterized in that described compact system comprises monitoring receiver, the connection of this monitoring receiver arranges a terminal control computer, this terminal control computer connects the Signal generator arranging a throttle signal, this Signal generator is connected with RF excited device by the amplification distributor of throttle signal, and RF excited device connects antenna-feedback system via the power amplifier connected.This radio signal suppression system effectively can implement disturbance suppression to the radio signal of each frequency range, it can produce and effectively suppress waveform, the throttle signal achieving any single-tone and multi-tone signal generates and sends, and can be used as radio regulatory organization and safeguards and the special equipment of particular application in everyday devices.But it can not carry out signal detection and signal compacting for unmanned plane.
Patent CN102508237 discloses a kind of angle tracking system, it is characterized in that comprising control centre, antenna subsystem, feeder line subsystem, launching subsystem, HF receiving subsystem, servo subsystem and communication interface subsystem, described antenna subsystem comprises electric wire seat, and the directional antenna, omnidirectional antenna and the directed loudspeaker that are arranged on antenna pedestal, described transmitting subsystem, comprises upconverter, frequently controlling processor, power amplifier and selector switch; The base band pumping signal sent here by control centre gives transmitting subsystem, and in transmitting subsystem, base band pumping signal delivers to power amplifier after upconverter; The output of power amplifier connects the input of selector switch; The output of described selector switch connects the input that transmits of directional antenna, omnidirectional antenna and directed loudspeaker respectively; Described directional antenna connects the output of this selector switch by feeder line subsystem; Frequently controlling processor receives the control signal from control centre, and the control signal of output selector switch, upconverter He Ne laser and power amplifier according to this, described feeder line subsystem, one's duty system transfers transmits to directional antenna, receive corresponding frequencies echo-signal, receive and ∑, gun parallax Δ A bis-road Received signal strength while transmitting, then send receiver through HF receiving subsystem; This subsystem comprises duplexer, adder-subtracter, left feed and right feed; Transmitting for directional antenna, this transmits and exports through duplexer, adder-subtracter and left feed successively; Reception and ∑ signal export duplexer to through left feed, adder-subtracter and port successively, recipient's potential difference Δ a-signal is exported through adder-subtracter difference by left and right feed, described HF receiving subsystem, comprises selector switch, LNA, low-converter, frequently controlling processor and intermediate-frequency receiver; An output of this selector switch connects LNA and low-converter successively, and the output of low-converter connects the input of intermediate-frequency receiver; This selector switch has three inputs, and omnidirectional antenna and directed loudspeaker are connected two inputs of this selector switch respectively; Another input of this selector switch receives described ∑ signal and Δ a-signal; This frequency controlling processor receives the control signal from control centre, and the control signal of output selector switch, low-converter according to this, described servo subsystem, comprise servo controller and drive motors, the control signal of described servo controller exports to drive motors, drive motors drives electric wire seat to rotate and pitching motion, described communication interface subsystem, is connected between control centre and the servo controller launching the frequency controlling processor of subsystem, the frequency controlling processor of HF receiving subsystem and servo subsystem.This patent documentation has higher angle measurement accuracy and good search, capture ability, but parts are many, complex structure and cost intensive and cannot be widely used and cannot carry out signal compacting to unmanned plane.
Patent CN103822699A discloses a kind of depopulated helicopter system of condition monitoring, it is characterized in that: comprising: airborne communication control, and Main Function is the vibration signal being emitted through analyzing and processing; Ground communication control appliance, receives the real-time vibration signal that airborne communication control sends, and realizes warning, prompting and demonstrate the real-time Vibration Condition of airflight of depopulated helicopter with figure or form of sound; Transducer, on the place being located at depopulated helicopter or many places fuselage, the displacement everywhere of induction fuselage, speed and acceleration; Acquisition Instrument, by sensor sensing to various signals convert the signal of telecommunication to and pass to analyzer, described Acquisition Instrument primarily of anti-aliasing filtering, digital-to-analogue conversion and dsp processor composition; The cut-off frequency of described anti-aliasing filtering and dsp processor is 1/2.56 times of the maximum sample frequency of described Acquisition Instrument, stopband attenuation :-120dB/Oct, flatness 0.05dB/Oct; Analyzer, the signal of telecommunication transmit Acquisition Instrument and the limiting value preset are compared and are judged, if the signal of telecommunication transmitted does not exceed default limiting value, then do not trigger other actions; If the signal of telecommunication transmitted exceeds default limiting value, analysis result is sent to ground communication control appliance by airborne communication control by analyzer.The state of flight of the grasp depopulated helicopter that this on-line monitoring system disclosed in this patent documentation can allow ground control personnel real-time, but it needs airborne equipment to coordinate, and cannot realize warning function, also cannot carry out signal compacting to unmanned plane.
Therefore, a kind of demand of current existence is the unmanned plane that can sense high-speed flight in advance, and implements early warning and provide signal compacting targetedly, and structure is simple, cost is low applied widely.
Utility model content
According to the characteristic of unmanned plane, it is different from manned aircraft, and the flight course of unmanned plane is necessarily subject to ground station's controlled in wireless.Therefore before unmanned plane approaches emphasis security protection region; the mode that frequency is suppressed can be adopted; destroy UAV Flight Control upstream data chain and data, image transmitting downlink in advance; reach and stop unmanned plane further near emphasis security protection region, prevent the object that protected field image is revealed.
The utility model discloses a kind of unmanned plane signal processing apparatus; it achieves a kind of unmanned plane and approaches flight detecting and frequency compacting; by detecting unmanned plane working frequency range; the unmanned plane that gives warning in advance approaches flight; and in unmanned aerial vehicle (UAV) control frequency range and transfer of data frequency range release interference, stop unmanned plane to approach flight to shielded security protection region.
At present, the unmanned plane operating frequency of being annotated and commented on by Ministry of Industry and Information and working method as shown in table 1 below, in addition Ministry of Industry and Information does not ratify but the unmanned aerial vehicle (UAV) control commonly used of unmanned plane fan and figure pass frequency range also comprises: uplink/downlink 433MHz frequency-hopping mode, descending 5800MHz radio frequency channel assignment mode.Therefore emphasis is implemented frequency detecting and frequency compacting for above-mentioned frequency range and working method by native system.
Table 1
The purpose of this utility model is achieved by the following technical programs.
According to first aspect of the present utility model, disclosed in the utility model, a kind of unmanned plane signal processing apparatus comprises receiver module, monitoring module, warning module, interference module and transmitter module.
Described receiver module utilizes isotropic receiving antenna to scan the uplink and downlink working frequency range of unmanned plane work for real time scan unmanned plane signal.Described receiver module scans unmanned plane working frequency range targetedly, improves scan efficiency.
Monitoring module comprises and the signal received is divided into the power divider of multiple signals by identical power, every road signal is carried out the bandpass filtering unit of bandpass filtering, described signal is converted to the A/D converting unit of digital signal and carries out Fourier transform to digital signal and time domain data is changed to the spectral analysis unit of frequency domain data.
Monitoring module carries out multiple signals process by power divider, improves the accuracy of monitoring, under the effect of bandpass filtering unit, provides monitoring precision.
Warning module comprises the comparing unit that the unmanned plane frequency domain data that stores in the memory cell and current frequency domain data spectral analysis unit sent and memory cell storing unmanned plane frequency domain data compares, when comparative result is in preset range, warning module gives the alarm.
Described interference module comprise setting base-band signal frequency baseband signal generator, be the jamming modulator of noise signal, the operable amplifier increasing noise power and the mixer that different noise bands is merged by modulates baseband signals.Interference module can be disturbed multiple target.
Described transmitter module comprises the directional transmitting antenna of the signal sending the different frequency range after ovennodulation for launching interference signal.
Preferably, warning module comprises loud speaker, and when warning module gives the alarm, loud speaker sends a warning in current frequency domain.
Preferably, described interference module adopts the unmanned plane uplink/downlink 840.5-845MHz frequency range of frequency-hopped digital communication.
Preferably, described interference module adopts the lasting random digital signal being greater than 46DBM noise that sends in the 4.5M frequency bandwidth of unmanned plane work to carry out barrage jamming.
Preferably, described interference module discharges the frequency identical with the channel frequency that unmanned plane uses and the interference signal of the bandwidth identical with channel spectrum width.
Preferably, described interference module release is greater than the interference power of 39DBM.The frequency range different for unmanned plane and working method, the utility model can also adopt different jamming patterns.Such as: for the unmanned plane uplink/downlink 840.5-845MHz frequency range adopting frequency-hopped digital communication, can select to adopt barrage jamming, namely in the 4.5M frequency bandwidth of unmanned plane work, continue the random digital signal sending high-power (being greater than 46DBM) noise, flood UAV Communication signal.For 1430-1446MHz and the 2408-2440MHz frequency range adopting radio frequency channel assignment mode, can according to channel spectrum analysis result, adopt spot jamming, namely the carrier frequency discharging interference overlaps with the channel center frequency that unmanned plane uses, jamming signal bandwidth is identical with channel spectrum width, interference power (being greater than 39DBM).One's own side's proper communication is not affected while interference UAV Communication frequency range.
Preferably, the described interference module release frequency identical with the channel frequency that unmanned plane uses and the interference signal of the bandwidth identical with channel spectrum width or described interference module adopt and lastingly in the 4.5M frequency bandwidth of unmanned plane work send the random digital signal being greater than 46DBM noise and carry out barrage jamming.
Preferably, spectral analysis unit carries out the digital signal acquiring that sampling rate is 16MHz, after gathering 1024 sampled points, carries out Fourier transform.
The scheme that the utility model proposes; can realize before unmanned plane approaches emphasis security protection region; the mode that frequency is suppressed can be adopted; destroy UAV Flight Control upstream data chain and data, image transmitting downlink in advance; reach and stop unmanned plane further near emphasis security protection region, prevent the object that protected field image is revealed.
Accompanying drawing explanation
Fig. 1 is the structural representation of the unmanned plane signal processing apparatus according to the utility model embodiment.
Fig. 2 is the structural representation of the unmanned plane signal processing apparatus according to another embodiment of the utility model.
Below in conjunction with drawings and Examples, the utility model is further explained.
Embodiment
Embodiment of the present utility model describes a kind of unmanned plane signal processing apparatus, and unmanned plane signal processing apparatus as shown in Figure 1 comprises receiver module 1, monitoring module 2, warning module 3, interference module 4 and transmitter module 5.
Described receiver module 1 utilizes isotropic receiving antenna 17 to scan the uplink and downlink working frequency range of unmanned plane work for real time scan unmanned plane signal.
Monitoring module 2 comprises and the signal received is divided into the power divider 6 of multiple signals by identical power, every road signal is carried out the bandpass filtering unit 7 of bandpass filtering, described signal is converted to the A/D converting unit 8 of digital signal and carries out Fourier transform to digital signal and time domain data is changed to the spectral analysis unit 9 of frequency domain data.
The comparing unit 11 that the unmanned plane frequency domain data that warning module 3 comprises storage in the memory cell 10 and current frequency domain data spectral analysis unit 9 sent and memory cell 10 storing unmanned plane frequency domain data compares, when comparative result is in preset range, warning module 3 gives the alarm.
Described interference module 4 comprise setting base-band signal frequency baseband signal generator 12, be the jamming modulator 13 of noise signal, the operable amplifier 14 increasing noise power and the mixer 15 that different noise bands is merged by modulates baseband signals.
Described transmitter module 5 comprises the directional transmitting antenna 18 of the signal sending the different frequency range after ovennodulation for launching interference signal.
According to an embodiment, warning module 3 comprises loud speaker 16, and when warning module 3 gives the alarm, loud speaker 16 sends a warning in current frequency domain.
According to an embodiment, the unmanned plane uplink/downlink 840.5-845MHz frequency range that described interference module 4 adopts frequency-hopped digital to communicate.
According to an embodiment, described interference module 4 adopts the lasting random digital signal being greater than 46DBM noise that sends in the 4.5M frequency bandwidth of unmanned plane work to carry out barrage jamming.
According to an embodiment, interference module 4 discharges the frequency identical with the channel frequency that unmanned plane uses and the interference signal of the bandwidth identical with channel spectrum width.
According to an embodiment, described interference module 4 release is greater than the interference power of 39DBM.
According to an embodiment, the scope of described bandpass filtering unit 7 processing signals is 20-480Hz.
According to an embodiment, described power divider 6 at least distributes 10 road signals.
According to an embodiment, described A/D converting unit 8 sample rate is 11025Hz.
In another embodiment, described interference module 4 discharges the frequency identical with the channel frequency that unmanned plane uses and the interference signal of the bandwidth identical with channel spectrum width or described interference module 4 adopt and lastingly in the 4.5M frequency bandwidth of unmanned plane work send the random digital signal being greater than 46DBM noise and carry out barrage jamming.
In one embodiment, spectral analysis unit 9 carries out the digital signal acquiring that sampling rate is 16MHz, after gathering 1024 sampled points, carries out Fourier transform.
Another embodiment of the present utility model describes a kind of unmanned plane signal processing apparatus, and unmanned plane signal processing apparatus as shown in Figure 2 comprises receiver module 1, monitoring module 2, warning module 3, interference module 4 and transmitter module 5.
First unmanned plane signal drawing method carries out all possible working frequency range scanning unmanned plane uplink and downlink, the signal of acquisition is processed, if process the frequency domain data obtained not to be in preset range with the frequency domain data prestored in the memory unit, then return scanning, if processing the frequency domain data obtained and the frequency domain data prestored in the memory unit is in preset range, then judge to obtain abnormal signal band information, give a warning information in this abnormal frequency range, if in predetermined amount of time, abnormal signal source disappears, then return scanning, if in predetermined amount of time, abnormal signal source does not disappear, then enter disturbance suppression part, first interference band baseband signal is generated, modulated interferer noise signal, carry out power amplification, release interference signal, after effectively being suppressed, stop release interference signal.
Described receiver module 1 utilizes isotropic receiving antenna 17 to scan the uplink and downlink working frequency range of unmanned plane work for real time scan unmanned plane signal.
Monitoring module 2 comprises and the signal received is divided into the power divider 6 of multiple signals by identical power, every road signal is carried out the bandpass filtering unit 7 of bandpass filtering, described signal is converted to the A/D converting unit 8 of digital signal and carries out Fourier transform to digital signal and time domain data is changed to the spectral analysis unit 9 of frequency domain data.
The comparing unit 11 that the unmanned plane frequency domain data that warning module 3 comprises storage in the memory cell 10 and current frequency domain data spectral analysis unit 9 sent and memory cell 10 storing unmanned plane frequency domain data compares, when comparative result is in preset range, the loud speaker 16 be located in warning module 3 sends a warning, if in predetermined amount of time, abnormal signal source disappears, then return and continue scanning, if in predetermined amount of time, abnormal signal source does not disappear, then enter disturbance suppression part.
Described interference module 4 comprise setting base-band signal frequency baseband signal generator 12, be the jamming modulator 13 of noise signal, the operable amplifier 14 increasing noise power and the mixer 15 that different noise bands is merged by modulates baseband signals.
Described transmitter module 5 comprises the directional transmitting antenna 18 of the signal sending the different frequency range after ovennodulation for launching interference signal.
According to an embodiment, the scope of described bandpass filtering unit 7 processing signals is 20-480Hz.
According to an embodiment, described power divider 6 at least distributes 10 road signals.
According to an embodiment, described A/D converting unit 8 sample rate is 11025Hz.
In another embodiment, described interference module 4 discharges the frequency identical with the channel frequency that unmanned plane uses and the interference signal of the bandwidth identical with channel spectrum width or described interference module 4 adopt and lastingly in the 4.5M frequency bandwidth of unmanned plane work send the random digital signal being greater than 46DBM noise and carry out barrage jamming.
In another embodiment, spectral analysis unit 9 carries out the digital signal acquiring that sampling rate is 16MHz, after gathering 1024 sampled points, carries out Fourier transform.
Although be below described embodiment of the present utility model by reference to the accompanying drawings, the utility model is not limited to above-mentioned specific embodiments and applications field, and above-mentioned specific embodiments is only schematic, guiding, instead of restrictive.Those of ordinary skill in the art, under the enlightenment of this specification and when not departing from the scope that the utility model claim is protected, can also make a variety of forms, and these all belong to the row of the utility model protection.
Claims (10)
1. a unmanned plane signal processing apparatus, it comprises receiver module (1), monitoring module (2), warning module (3), interference module (4) and transmitter module (5), wherein,
Described receiver module (1) utilizes the uplink and downlink working frequency range that isotropic receiving antenna (17) scans unmanned plane work to be used for real time scan unmanned plane signal;
Monitoring module (2) comprises and the signal received is divided into the power divider of multiple signals (6) by identical power, every road signal is carried out the bandpass filtering unit (7) of bandpass filtering, described signal is converted to the A/D converting unit (8) of digital signal and carries out Fourier transform to digital signal and time domain data is changed to the spectral analysis unit (9) of frequency domain data;
The comparing unit (11) that the unmanned plane frequency domain data that warning module (3) comprises storage in the memory cell (10) and current frequency domain data spectral analysis unit (9) sent and memory cell (10) storing unmanned plane frequency domain data compares, when comparative result is in preset range, warning module (3) gives the alarm
Described interference module (4) comprise setting base-band signal frequency baseband signal generator (12), be the jamming modulator (13) of noise signal, the operable amplifier (14) increasing noise power and the mixer (15) that different noise bands is merged by modulates baseband signals;
Described transmitter module (5) comprises the directional transmitting antenna (18) of the signal sending the different frequency range after ovennodulation for launching interference signal.
2. unmanned plane signal processing apparatus according to claim 1, it is characterized in that: warning module (3) comprises loud speaker (16), when warning module (3) gives the alarm, loud speaker (16) sends a warning in current frequency domain.
3. unmanned plane signal processing apparatus according to claim 1, is characterized in that: described interference module (4) adopts the unmanned plane uplink/downlink 840.5-845MHz frequency range of frequency-hopped digital communication.
4. unmanned plane signal processing apparatus according to claim 1, is characterized in that: described interference module (4) adopts the lasting random digital signal being greater than 46DBM noise that sends in the 4.5M frequency bandwidth of unmanned plane work to carry out barrage jamming.
5. unmanned plane signal processing apparatus according to claim 1, is characterized in that: described interference module (4) the release frequency identical with the channel frequency that unmanned plane uses and the interference signal of the bandwidth identical with channel spectrum width.
6. unmanned plane signal processing apparatus according to claim 2, is characterized in that: described interference module (4) release is greater than the interference power of 39DBM.
7. unmanned plane signal processing apparatus according to claim 1, is characterized in that: the scope of described bandpass filtering unit (7) processing signals is 20-480Hz.
8. unmanned plane signal processing apparatus according to claim 1, is characterized in that: described power divider (6) at least distributes 10 road signals.
9. unmanned plane signal processing apparatus according to claim 1, is characterized in that: described A/D converting unit (8) sample rate is 11025Hz.
10. unmanned plane signal processing apparatus according to claim 1, is characterized in that: spectral analysis unit (9) carries out the digital signal acquiring that sampling rate is 16MHz, after gathering 1024 sampled points, carries out Fourier transform.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105099585A (en) * | 2015-08-03 | 2015-11-25 | 陈昊 | Unmanned aerial vehicle signal processing device and signal processing method |
| CN106254009A (en) * | 2016-07-21 | 2016-12-21 | 北京航空航天大学 | A kind of Unmanned Aerial Vehicle Data Link test electromagnetic interference signal recurrence system and reproducing method |
| WO2018184186A1 (en) * | 2017-04-07 | 2018-10-11 | 深圳市大疆创新科技有限公司 | Signal interference circuit and device |
| CN111164014A (en) * | 2017-10-16 | 2020-05-15 | 日本化药株式会社 | Fall detection device, method for detecting aircraft fall, parachute or paraglider deployment device, and airbag device |
| CN112367142A (en) * | 2020-10-29 | 2021-02-12 | 黄凯 | Interference signal generating device |
| US10999001B2 (en) | 2017-04-07 | 2021-05-04 | SZ DJI Technology Co., Ltd. | Jamming device and jamming method |
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2015
- 2015-08-03 CN CN201520593213.XU patent/CN204993363U/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105099585A (en) * | 2015-08-03 | 2015-11-25 | 陈昊 | Unmanned aerial vehicle signal processing device and signal processing method |
| CN105099585B (en) * | 2015-08-03 | 2017-11-24 | 陈昊 | Unmanned plane signal processing apparatus and signal processing method |
| CN106254009A (en) * | 2016-07-21 | 2016-12-21 | 北京航空航天大学 | A kind of Unmanned Aerial Vehicle Data Link test electromagnetic interference signal recurrence system and reproducing method |
| CN106254009B (en) * | 2016-07-21 | 2018-08-03 | 北京航空航天大学 | A kind of Unmanned Aerial Vehicle Data Link test electromagnetic interference signal recurrence system and reproducing method |
| WO2018184186A1 (en) * | 2017-04-07 | 2018-10-11 | 深圳市大疆创新科技有限公司 | Signal interference circuit and device |
| US10999001B2 (en) | 2017-04-07 | 2021-05-04 | SZ DJI Technology Co., Ltd. | Jamming device and jamming method |
| CN111164014A (en) * | 2017-10-16 | 2020-05-15 | 日本化药株式会社 | Fall detection device, method for detecting aircraft fall, parachute or paraglider deployment device, and airbag device |
| CN111164014B (en) * | 2017-10-16 | 2023-10-31 | 日本化药株式会社 | Fall detection device, method for detecting a fall of an aircraft, deployment device for a parachute or paraglider, and airbag device |
| CN112367142A (en) * | 2020-10-29 | 2021-02-12 | 黄凯 | Interference signal generating device |
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