CN209218078U - Navigation radio managing and control system - Google Patents

Abstract

The utility model relates to radio managing and control system of opening the navigation or air flight, which includes control and command center, radio monitoring equipment, the radar observation system being made of directional aerial and omnidirectional antenna, audio the monitoring system, radio press device being made of audio analyzer and sound pick-up；When any one in radio monitoring equipment, radar observation system, audio monitoring system determines suspicious object, control and command center then controls radio press device and carries out radio compacting to suspicious object.A kind of radio monitoring this means are not used only and screen to unmanned plane signal for this programme, but audio analysis, radar detection, radio signal is used to monitor three aspects and be monitored, once one of monitoring means monitors that suspicious object is broken through, to improve unmanned plane control efficiency, significant effect is broken through for low small slow target.

Description

Navigation radio managing and control system

Technical field

The utility model relates to radio to manage field, and in particular to a kind of navigation radio managing and control system.

Background technique

With civil-military inosculation implementation and propulsion in world wide, unmanned air vehicle technique answering in civil field in recent years With acquisition tremendous development.The advantage that " General Aviation develops " 13 " planning " opens gradually low latitude, so that domestic civilian nothing Man-machine development is very swift and violent, is reported according to IDC and shows Chinese about 20,000 frame of unmanned plane sales volume in 2014, wherein military unmanned air vehicle accounts for 4%, civilian unmanned plane accounts for 96%.By 2016, the sales volume of Chinese unmanned plane consumer level market only Q1 just broke through 80000, annual Sales volume about 390,000.It is expected that " 13 " are last, the general airport of China will build up 500 or more, and navigation aircraft is up to 5000 More than frame, year flight is measured 2,000,000 hours.There are more and more people to become " winged hand ".Reinforce the supervision to unmanned plane, both needs method Rule ensure, it is also desirable to which technological innovation is escorted.

With the rapid development of radio technology, in addition to other than traditional military field application, various types of unmanned planes It is also increasingly extensive in the application of civil field.While bringing convenient to people's Working Life, some nothings for occurring in recent years It is man-machine to be let fly away privately in no-fly zone, to sensitive target tracking, shooting, the event of dangerous material lift-off is carried, to national security and people People's masses' property life security, which causes, to be seriously threatened.

It, just must be anti-in " low small slow " unmanned plane to existing safety protection technique system in order to guarantee the safety of low altitude airspace The security risk that prosecutor face is exposed is made up, and complete 3 D stereo safety guard net is formed, and it is hidden to eliminate low altitude safe Suffer from.

Currently, the identification for unmanned plane is usually to be identified using the working frequency range of unmanned plane, it is illegal when detecting Signal is suppressed by way of radio later, however can not then identify the frequency range for the unmanned plane after some repackings, So that by the identification of unmanned plane working frequency range, there are loopholes, can then be applicable in ultrasonic wave in order to solve this problem or radar is fixed The mode of position is identified that the drawbacks of which is, the unmanned plane signal then can not be effectively identified when nobody connects hovering, from And cannot timely break through, cause any property loss.

Utility model content

The purpose of the utility model is to overcome the deficiencies in the prior art, provide a kind of navigation radio managing and control system, with " low small slow " unmanned plane is target, establishes from discovery, the overall process for monitoring, suppressing, tracing into disposition and completely manages chain, is " low It is small slow " the control disposition of unmanned plane provides systematization overall technology solution, and it can be realized comprehensive unmanned plane control, keep away Exempt from property loss.

The purpose of this utility model is achieved through the following technical solutions:

A kind of navigation radio managing and control system, the system include control and command center, radio monitoring equipment, by orientation day The radar observation system of line and omnidirectional antenna composition monitors system, radio by the audio that audio analyzer and sound pick-up form Press device；

Monitoring result for the radio detection in monitoring area and is uploaded in control and command by radio monitoring equipment The heart；

The omnidirectional antenna connection signal receiving module, signal receiving module is connected to control and command center, for covering The suspicious object orientation monitored is simultaneously uploaded to control and command center by entire monitoring range；

The directional aerial and sound pick-up are commonly mounted on a turntable, and control and command center is according to suspicious object side The driving motor of position control turntable turns to respective party parallactic angle, and orientation of the directional aerial for secondary detection suspicious object is believed Breath；

The sound pick-up output end connection signal amplifying circuit, signal amplification circuit output end are connected to audio analyzer, Sound pick-up is analyzed for picking up the amplified audio analyzer that is uploaded to of audio signal that nobody connects；

It is supervised when any one in radio monitoring equipment, radar observation system, audio monitoring system determines suspicious object Control command centre then controls radio press device and carries out radio compacting to suspicious object.

Further, the sound pick-up includes microphone array column unit, audio decoding unit, DSP processing unit and audio Output unit, microphone array column unit are connected with audio decoding unit, and audio decoding unit and audio output unit are with parallel side Formula is connect with DSP processing unit.

Further, the microphone array column unit includes 4 MEMS microphones, 4 MEMS microphones straight line on circuit boards Arrangement forms microphone linear array, the center of adjacent MEMS microphone away from being 20 ± 0.1mm, the sensitivity of MEMS microphone for- 40dB ± 0.5dB, frequency response are 100Hz -10KHz, length 3.76mm, width 2.95mm, and signal-to-noise ratio is not less than 60dB.

Further, the signal amplification circuit is by amplifier, first capacitor, the second capacitor, third capacitor, the first electricity Resistance, second resistance composition, the collected acoustic signals of sound pick-up are sent into amplifier after first capacitor filters and are amplified, Middle third capacitor is connected in parallel on the input/output terminal of amplifier for changing gain, and the second capacity earth is used as and plays for shunt capacitance The effect of noise is filtered out, the output end of amplifier is connected to audio analyzer.

The beneficial effects of the utility model are: comparing with traditional unmanned plane control, radio prison is not used only for this programme It surveys a kind of this means to screen unmanned plane signal, but audio analysis, radar detection, radio signal is used to monitor three Aspect is monitored, once one of monitoring means monitors that suspicious object is broken through, to improve unmanned plane control Efficiency breaks through significant effect for low small slow target.

Detailed description of the invention

Fig. 1 is the system block diagram of the utility model；

Fig. 2 is the structural schematic diagram of the utility model sound pick-up；

Fig. 3 is the utility model sound pick-up microphone array cellular construction schematic diagram；

Fig. 4 is the structural schematic diagram of the utility model signal amplification circuit.

Specific embodiment

The technical solution of the utility model, but the protection scope of the utility model are described in further detail with reference to the accompanying drawing It is not limited to as described below.

As shown in Figure 1, a kind of navigation radio managing and control system, which includes that control and command center, radio monitoring are set The standby, radar observation system that is made of directional aerial and omnidirectional antenna is monitored by the audio that audio analyzer and sound pick-up form System, radio press device；Radio monitoring equipment for the radio detection in monitoring area and uploads monitoring result To control and command center；Omnidirectional antenna connection signal receiving module, signal receiving module is connected to control and command center, for covering It covers entire monitoring range and the suspicious object orientation monitored is uploaded to control and command center；Directional aerial and sound pick-up are common It is mounted on a turntable, control and command center turns to accordingly according to the driving motor that suspicious object orientation controls turntable Azimuth, directional aerial are used for the azimuth information of secondary detection suspicious object；Sound pick-up output end connection signal amplifying circuit, letter Number amplification circuit output end is connected to audio analyzer, and sound pick-up is used to pick up that audio signal that nobody connects to be amplified is uploaded to Audio analyzer is analyzed；When any one determination in radio monitoring equipment, radar observation system, audio monitoring system can Control and command center then controls radio press device and carries out radio compacting to suspicious object when doubting target.

As shown in Fig. 2, above-mentioned sound pick-up includes microphone array column unit, audio decoding unit, DSP processing unit and audio Output unit, microphone array column unit are connected with audio decoding unit, and audio decoding unit and audio output unit are with parallel side Formula is connect with DSP processing unit.It should be pointed out that sound pick-up used in this programme is not the original of this programme, but it is sharp A kind of microphone linear array enhancing directive property sound pick-up disclosed in patent No. CN201521118423.X.

Specifically as shown in figure 3, above-mentioned microphone array column unit includes 4 MEMS microphones (M1-M4), 4 MEMS microphones Straight line arranges to form microphone linear array on circuit boards, and the center of adjacent MEMS microphone is away from for 20 ± 0.1mm, MEMS microphone Sensitivity be -40dB ± 0.5dB, frequency response be 100Hz -10KHz, length 3.76mm, width 2.95mm, signal-to-noise ratio Not less than 60dB.For audio decoding unit using integrated IC chip NAU85L40, NAU85L40 maximum supports 48KHz sampling, system Using 16KHz sample rate, 24bit sampling precision, audio signal is amplified by PGA first, is then input to AD and is carried out modulus turn It changes, ALC link realizes that PGA is adjusted with audio input signal intensity Gain Automaticly, and ALC can be tracked at any time, be monitored that PGA is exported Audio signal level, when input signal increase when, alc circuit reduces the gain of PGA automatically；When input signal reduces, ALC Circuit is automatically increased the gain of PGA, so that collected signal is maintained at optimizing level.NAU85L40 passes through TDM bus and DSP The docking of McASP0 interface, the audio signal in 4 channels is input to DSP by time-multiplexed mode.

DSP processing unit is the core of entire sound pick-up, and DSP first receives the data of TDM bus in a manner of dMAX, then The signal that 4 microphones receive in array is divided into the signal frame to overlap each other according to 1/4 overlapping rate, is then utilized The data of these signal frames are changed to frequency domain from time domain transformation by 256 points of Short Time Fourier Transform.In each Fourier in short-term A Difference Beam is designed on the subband of transformation, the filter factor that wherein Difference Beam is formed first passes through solution by zeros constrained in advance System of linear equations obtain.Using designed Difference Beam shaper to the Short Time Fourier Transform coefficient of 4 microphones It is filtered, to achieve the purpose that eliminate noise on subband and estimate desired signal.Finally, being summed using overlap-add, so The signal of estimation is transformed by time domain by 256 points of Fourier inversion in short-term afterwards, the voice signal after being rebuild.It rebuilds Voice signal afterwards is equally sent to the McASP1 interface of DSP by dMAX mode.Audio output unit is connected by IIS bus The McASP1 interface of DSP, by IISBusBuffer driving at two-way IIS bus, IIS1 bus connects the output of DA audio frequency simulation, IIS2 bus connection usb audio data are exported to signal amplification circuit.

As shown in figure 4, signal amplification circuit is by amplifier, first capacitor, the second capacitor, third capacitor, first resistor, Two resistance composition, the collected acoustic signals of sound pick-up are sent into amplifier after first capacitor filters and are amplified, wherein the Three capacitors are connected in parallel on the input/output terminal of amplifier for changing gain, and the second capacity earth is used as to play for shunt capacitance and filter out The output end of the effect of noise, amplifier is connected to audio analyzer.

Radio monitoring equipment used in the present embodiment includes monitoring aerial and main control device, and main control device includes signal The input terminal of receiver, processor and communication unit, monitoring aerial and signal receiver connects, the output end of signal receiver It is connect with processor, processor is connect with the communication unit.Monitoring aerial includes omnidirectional antenna and direction-finder antenna, main control device It further include the conversion keys for converting monitoring pattern, omnidirectional antenna and direction-finder antenna are connect by the conversion keys with signal The connection of receipts machine, omnidirectional antenna are passive discone antenna, and direction-finder antenna is that active annular adds to all antennas, and signal receiver is in zero Frequency signal receiver.

The above is only the preferred embodiment of the utility model, it should be understood that the utility model is not limited to herein Disclosed form, should not be regarded as an exclusion of other examples, and can be used for other combinations, modifications, and environments, and Can be in contemplated scope described herein, modifications can be made through the above teachings or related fields of technology or knowledge.And this field The modifications and changes that personnel are carried out do not depart from the spirit and scope of the utility model, then all should be in right appended by the utility model It is required that protection scope in.

Claims (4)

1. a kind of navigation radio managing and control system, which is characterized in that the system includes that control and command center, radio monitoring are set The standby, radar observation system that is made of directional aerial and omnidirectional antenna is monitored by the audio that audio analyzer and sound pick-up form System, radio press device；

Monitoring result for the radio detection in monitoring area and is uploaded to control and command center by radio monitoring equipment；

The omnidirectional antenna connection signal receiving module, signal receiving module are connected to control and command center, entire for covering The suspicious object orientation monitored is simultaneously uploaded to control and command center by monitoring range；

The directional aerial and sound pick-up are commonly mounted on a turntable, and control and command center is according to the control of suspicious object orientation The driving motor of turntable processed turns to respective party parallactic angle, and directional aerial is used for the azimuth information of secondary detection suspicious object；

The sound pick-up output end connection signal amplifying circuit, signal amplification circuit output end are connected to audio analyzer, pickup Device is analyzed for picking up the amplified audio analyzer that is uploaded to of audio signal that nobody connects；

When any one in radio monitoring equipment, radar observation system, audio monitoring system determines suspicious object, monitoring refers to It waves center and then controls radio press device to suspicious object progress radio compacting.

2. navigation radio managing and control system according to claim 1, which is characterized in that the sound pick-up includes microphone array Column unit, audio decoding unit, DSP processing unit and audio output unit, microphone array column unit are led with audio decoding unit Logical, audio decoding unit is connect with DSP processing unit in a parallel fashion with audio output unit.

3. navigation radio managing and control system according to claim 2, which is characterized in that the microphone array column unit includes 4 MEMS microphones, 4 MEMS microphones on circuit boards arrange to form microphone linear array by straight line, in adjacent MEMS microphone The heart is -40dB ± 0.5dB away from the sensitivity for 20 ± 0.1mm, MEMS microphone, and frequency response is 100Hz -10KHz, and length is 3.76mm, width 2.95mm, signal-to-noise ratio are not less than 60dB.

4. navigation radio managing and control system according to claim 3, which is characterized in that the signal amplification circuit is by amplifying Device, first capacitor, the second capacitor, third capacitor, first resistor, second resistance composition, the collected acoustic signals warp of sound pick-up Feeding amplifier amplifies after crossing first capacitor filtering, and wherein third capacitor is connected in parallel on the input/output terminal of amplifier for changing Variable-gain, for the second capacity earth as playing the role of filtering out noise for shunt capacitance, the output end of amplifier is connected to audio Analyzer.