CN105048546B - Photovoltaic modulation power source communication system for unmanned plane - Google Patents
Photovoltaic modulation power source communication system for unmanned plane Download PDFInfo
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- CN105048546B CN105048546B CN201510407249.9A CN201510407249A CN105048546B CN 105048546 B CN105048546 B CN 105048546B CN 201510407249 A CN201510407249 A CN 201510407249A CN 105048546 B CN105048546 B CN 105048546B
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Abstract
The present invention relates to a kind of photovoltaic modulation power source communication system for unmanned plane, belong to radio communication technology field.Photovoltaic modulation power source communication system, its transmitter and receiver, the emitter includes the final power amplifier that driver, controller, photovoltaic modulation power source and the signal for be sent to driver carry out power amplification, characterized in that, the instantaneous amplitude of the controller signal to be sent driver provides electric energy to final power amplifier.The utilization rate of the photo-voltaic power supply of the photovoltaic modulation power source communication system is high, can improve continuing the time for unmanned plane.
Description
Technical field
The present invention relates to a kind of photovoltaic modulation power source communication system for unmanned plane, more particularly to a kind of power-efficient are high
The photovoltaic modulation power source communication system for unmanned plane, belong to radio communication technology field.
Background technology
Unmanned plane is a kind of not manned aircraft based on wireless remotecontrol or itself programme-control.With manned aircraft phase
Than it has small volume, low cost, easy to use, the features such as environmental requirement is low, battlefield survival is stronger of being stood to work.It is modern
In war, unmanned plane, which can go deep into one or two hundred kilometers of position forward position and enemy's rear area, to be scouted and is monitored to enemy's situation, can be used as and be deceived
Bait is opposed, enemy is implemented to disturb, enemy is attacked, communication relay can also be carried out, still, unmanned plane completes its task
When need electric energy, if electric energy is once used up, its serving as task can not just be completed.
The oscillogram of electric energy is provided when Fig. 1 is the final power amplifier amplified signal provided in the prior art.Such as Fig. 1 institutes
Show, in order that transmission signalIt is distortionless to be transmitted by wireless channel, need what is provided in final power amplifying stage
Supply voltage value E is more than the maximum amplitude of institute's transmission signal, in this way, most of energy is consumed in the form of heat energy.And
To OFDM（Orthogonal Frequency Division Multiplexing OFDMs）System, the peak of signal
Flat ratio is very high, and the Amplitude Ration of most of signal is relatively low, and the amplitude of only minimum a part of signal is bigger, and uses existing skill
Method of supplying power in art, the power supply of voltage or electric current is fixed to final stage power amplifier, and the utilization rate of power supply is extremely low.
The content of the invention
To overcome shortcoming present in prior art, goal of the invention of the invention is to provide a kind of photovoltaic for unmanned plane
Modulation power source communication system, the utilization rate of photo-voltaic power supply is high, can improve continuing the time for unmanned plane.
To realize the goal of the invention, the present invention provides a kind of photovoltaic modulation power source communication system, its emitter and reception
Machine, the emitter include driver, controller, photovoltaic modulation power source and the signal for be sent to driver and carry out work(
The final power amplifier of rate amplification, it is characterised in that the instantaneous amplitude of the controller signal to be sent driver is to end
Stage power amplifier provides electric energy.
Preferably, photovoltaic adjusts modulation power source to include the DC voltage that photo-voltaic power supply module, charger and k levels are electrically in series
Unit, the k are the integer more than or equal to 2, and the charger utilizing photo-voltaic power supply module is electrically in series straight to k levels
Flow voltage cell and electric energy is provided.
Preferably, described DC voltage unit includes rechargeable battery pack, the charger utilizing photo-voltaic power supply module
Charged to rechargeable battery pack.
Preferably, described DC voltage unit also includes electric switch, and the rechargeable battery pack is accessed by electric switch
In sequential circuit.
Preferably, DC voltage unit also includes voltage sensor, and the voltage sensor is used to detect rechargeable battery
Voltage, and send the voltage of rechargeable battery to controller.
Compared with prior art, provided by the present invention for the photovoltaic modulation power source communication system of unmanned plane, photo-voltaic power supply
Utilization rate it is high, continuing the time for unmanned plane can be improved.
Brief description of the drawings
The oscillogram of electric energy is provided when Fig. 1 is the final power amplifier amplified signal provided in the prior art；
Fig. 2 is the composition frame chart of UAV system photovoltaic modulation power source emitter provided by the invention；
Fig. 3 is the composition frame chart of the modulated power supply of photovoltaic provided by the invention；
Fig. 4 is the composition frame chart of controller provided by the invention；
The oscillogram of electric energy is provided when Fig. 5 is final power amplifier amplified signal provided by the invention；
Fig. 6 is the circuit diagram of solar energy module provided by the invention.
Embodiment
Below in conjunction with the accompanying drawings, the present invention is described in detail.
Fig. 2 is the composition frame chart provided by the present invention for the photovoltaic modulation power source communication system of unmanned plane.Such as Fig. 2 institutes
Show, the present invention provides a kind of photovoltaic modulation power source communication system for unmanned plane, and it includes transmitter and receiver, the hair
The machine of penetrating includes：Driver, controller（MCU）, HVDC Modulation power supply, carry out power for the signal to be sent to driver and put
Big final power amplifier, matched with the input impedance of transmitting antenna for the output impedance to final power amplifier
Output filter and for the electric signal amplified through final power to be become into magnetic signal and is transmitted into the transmitting antenna in space, institute
Stating receiver includes：For space magnetic signal to be become to the reception antenna of electric signal, for the telecommunications for being received reception antenna
Number small signal amplifier being amplified, for the signal that is amplified small signal amplifier with produced by first level oscillator
Local oscillation signal carry out down coversion formed intermediate-freuqncy signal the first frequency mixer, for by intermediate-freuqncy signal progress analog to digital conversion form number
It is believed that number A-D converter, for removing the time interval in data-signal, then successively carry out serial to parallel conversion, FFT
The symbol that symbol inverse mapping is carried out with the ofdm demodulator of parallel serial conversion and the signal for ofdm demodulator to be exported inverse reflects
Emitter.Driver includes symbol mapper, OFDM modulators, D/A translation circuits, frequency mixer, this grade of oscillator and prime amplifier,
Wherein, symbol mapper is used to the serial binary code stream inputted carrying out packet forming data symbol and reflect data symbol
The data sequence that pluralizes is penetrated, OFDM modulators are used to complex data sequence carrying out serial to parallel conversion and are modulated to K subcarrier,
Data on K subcarrier are designated as,...,；Then IFFT is carried out to convert to form parallel time domain data,
...,, i.e.,,...,For an OFDM symbol, the parallel time domain data is subjected to parallel serial conversion and formed
Serial OFDM symbol, guard time interval is then inserted between each OFDM symbol and forms OFDM symbol；D/A translation circuits will
Data flow carries out digital-to-analogue conversion and forms analog signal；Second frequency mixer is used for analog signalProduced with second level oscillator
Raw local oscillation signalCarry out up-conversion and form signal to be sent, prime amplifier is to sent signalIt is amplified
And give final power amplifier and carry out power amplification.The instantaneous amplitude of the controller signal to be sent driver is to final stage
Power amplifier provides electric energy.
Still as shown in Fig. 2 the binary number stream of input carries out packet and forms data symbol, data symbol is through symbol mapper
Mapping forms complex data sequence, becomes after complex data sequence serial to parallel conversion and opens the parallel low rate data streams of K bars、...,；IFFT is carried out to it to convert to obtain the sample value of time domain：
,
Wherein, m is the discrete point of frequency domain, and k is the discrete point of time domain.
Fig. 3 is the composition frame chart of the modulated power supply of photovoltaic provided by the invention.As shown in figure 3, photovoltaic adjusts modulation power source bag
Include k+1 photo-voltaic power supply module k+1 charger and DC voltage unit that k+1 levels are electrically in series, the k is is more than or waited
In 2 integer, the charger utilizing photo-voltaic power supply module provides electric energy to DC voltage unit.
Wherein, rechargeable battery E0 positive pole is connected to diode D0 negative pole, and negative pole connects common port, and diode D0 is just
Pole is connected to the power output end of the 1st charger, and the common male end of the 1st charger is connected with rechargeable battery E0 common port, and the 1st
The power input of charger is connected to the output end of the 1st photo-voltaic power supply module, and the power input of the 1st charger is connected to
The output end of 1 photo-voltaic power supply module.
First DC voltage unit M1 is connected to the output end of the 2nd charger by diode D11, the 2nd charger
Power input is connected to the output end of the 2nd photo-voltaic power supply module.First DC voltage unit M1 includes a rechargeable battery
Group E11,12, electronic switch T11 of a sustained diode and a voltage sensor U11, electronic switch are CMOS tube,
The positive pole of the battery pack E11 is connected to the negative pole of sustained diode 12；The positive pole of sustained diode 12 is connected to CMOS tube
Drain electrode, CMOS tube T11 source electrode is connected to the negative pole of the battery pack E11, and CMOS tube T11 grid is connected to controller
One output end；Voltage sensor U11 two terminals are connected to rechargeable battery pack E11 both ends, can for detecting
The voltage at rechargeable battery E11 both ends, and result of detection is sent to an input of controller.Controller is according to driver institute
The voltage control CMOS tube T11's for the chargeable electric current that the instantaneous amplitude and voltage sensor U11 for the signal to be sent are detected
Break-make.CMOS tube T11 works on off state, and when the grid to CMOS tube T11 inputs a high potential, CMOS tube T11 is led
Logical, battery pack E11 negative pole is equivalent to the positive pole for being connected to sustained diode 12.The voltage at the both ends of sustained diode 12 is U1,
Upper end is just, lower end is negative.When the grid to CMOS tube T11 inputs a low potential, CMOS tube T11 cut-offs.The pole of afterflow two
The voltage at pipe D12 both ends is diode junction voltage.
Similarly, second DC voltage unit M2 is connected to the output end of the 3rd charger, the 3rd charging by diode D21
The power input of device is connected to the output end of the 3rd photo-voltaic power supply module.It is chargeable that second DC voltage unit M2 includes one
Battery pack E21,22, electronic switch T21 of a sustained diode and a voltage sensor U21, electronic switch CMOS
Pipe, the positive pole of the battery pack E21 are connected to the negative pole of sustained diode 22；The positive pole of sustained diode 22 is connected to CMOS
The drain electrode of pipe, CMOS tube T21 source electrode are connected to the negative pole of the battery pack E21, and CMOS tube T21 grid is connected to controller
An output end；Voltage sensor U21 two terminals are connected to rechargeable battery pack E21 both ends, for detecting
The voltage at rechargeable battery E21 both ends, and result of detection is sent to an input of controller.Controller is according to driver
The voltage control CMOS tube T21 for the chargeable electric current that the instantaneous amplitude and voltage sensor U21 for the signal to be sent are detected
Break-make.CMOS tube T21 works on off state, and when CMOS tube T21 grid inputs a high potential, CMOS tube T21 is led
Logical, battery pack E21 negative pole is equivalent to the positive pole for being connected to sustained diode 22.The voltage at the both ends of sustained diode 22 is U2,
Upper end is just, lower end is negative.When CMOS tube T21 grid inputs a low potential, CMOS tube T21 cut-offs.Fly-wheel diode
The voltage at D22 both ends is diode junction voltage.
The like, k-th of DC voltage unit Mk is connected to the output end of the charger of kth+1 by diode Dk1, the
The power input of k+1 chargers is connected to the output end of the photo-voltaic power supply module of kth+1.K-th of DC voltage unit Mk includes
One rechargeable battery pack Ek1, a sustained diode k2, an electronic switch Tk1 and a voltage sensor Uk1, electronic cutting
Close and be connected to sustained diode k2 negative pole for CMOS tube, the positive pole of the battery pack Ek1；Sustained diode k2 positive pole connects
The drain electrode of CMOS tube is connected to, CMOS tube Tk1 source electrode is connected to the negative pole of the battery pack Ek1, CMOS tube Tk1 grid connection
To an output end of controller；Voltage sensor Uk1 two terminals are connected to rechargeable battery pack Ek1 both ends,
For detecting the voltage at rechargeable battery Ek1 both ends to, and result of detection is sent to an input of controller.Controller root
The voltage control of the chargeable electric current detected according to the instantaneous amplitude and voltage sensor Uk1 of the driver signal to be sent
CMOS tube Tk1 break-make.CMOS tube Tk1 works on off state, when the grid to CMOS tube Tk1 inputs a high potential,
CMOS tube Tk1 is turned on, and battery pack Ek1 negative pole is equivalent to the positive pole for being connected to sustained diode k2.Sustained diode k2 both ends
Voltage be Uk, upper end is just, lower end is negative.When the grid to CMOS tube Tk1 inputs a low potential, CMOS tube Tk1 is cut
Only.The voltage at sustained diode k2 both ends is diode junction voltage.
Rechargeable battery E0 positive pole is connected to the 1st DC voltage unit M1 diode D12 positive pole, and the 1st straight
Stream voltage cell M1 diode D12 negative pole is connected to the 2nd DC voltage unit M2 diode D22 positive pole, the 2nd
DC voltage unit M2 diode D22 negative pole is connected to the 3rd DC voltage unit M3 diode D22 positive pole ...,
Rechargeable battery E0 negative pole connects common port, if in this way, each DC voltage unit M1, M2 ... and Mk electronic switch is equal
In the case of simultaneously turning on, the total output total voltage of photovoltaic modulation power source be U it is total=E0+E11+E21+ ...+Ek1, the present invention sets
It is to prevent distorted signals to put a battery E0.
The magnitude of voltage of each DC voltage unit output is identical in the present invention, then total output voltage：
U is total=（n+1）E0
Fig. 4 is the composition frame chart of controller provided by the invention.As shown in figure 4, the controller include k comparator with
（k-1）Individual subtracter, the instantaneous amplitude UF of the 1st comparator CO1 in-phase end input actuator signal to be sent are anti-phase
The voltage U11 that end input first voltage sensor is detected, if UF is more than U11, comparator CO1 output high level, utilize
Automatic level control T11, is turned it on；Then, instantaneous amplitude UF and voltage U11 is subtracted each other through subtracter S2, be then sent to ratio
Compared with device CO2 in-phase end, comparator CO2 end of oppisite phase inputs the voltage U21 that second voltage sensor is detected, if UF is more than
U21, then comparator CO2 outputs high level, using Automatic level control T21, is turned it on, until the output of a level comparators is
Low level, wherein a be 1 to a number between k, now, export total voltage for U it is total=E0+E11+E21+ ...+Ea1.
Effect is as shown in figure 5, when the signal to be launchedAmplitude it is big when, the electronics of each DC voltage unit can be made
Switch simultaneously turn on, there is provided power supply U be always each power supply sum.When the amplitude of the signal to be launched is small, part can be made
Power supply turn on, there is provided power supply for conducting each DC voltage unit sum, i.e. the voltage of offer is small, in this way, just improving
The utilization rate of photo-voltaic power supply.
Fig. 6 is the circuit diagram of photo-voltaic power supply module provided by the invention.As shown in fig. 6, photo-voltaic power supply module includes：It is multiple
Electrically in parallel response sun energon power supply：First sun energon power supply A1, the second sun energon power supply A2 ... and n-th of sun
Energon power supply An, each sun energon power supply include multiple solar energy grandson's units being electrically in series, i.e. each sun energon
Power supply includes the electrically coupled in series solar energy grandson unit from aircraft top surface, the solar energy grandson unit before aircraft, come
Solar energy grandson unit, the solar energy grandson unit from the aircraft right side and the sun behind aircraft from the aircraft left side
Can Sun Danyuan.Each sun energon power supply include the solar energy grandson power supplys of a string of electrically coupled in series responses, the first DC/DC converters 5,
First controller 7, diode D4 and diode D3, wherein, the positive output end of solar energy grandson's power supply is connected to the first DC/DC conversions
The power input of device 5, the common port of solar energy grandson's power supply are connected to the power input common port of the first DC/DC converters 5；The
The solar energy grandson power supply of a string of electrically coupled in series responses is exported the first DC voltage and is converted to the second direct current by one DC/DC converters 5
Voltage, the power output end of the first DC/DC converters 5 are connected to diode D4 positive terminal；Diode D4 negative pole end connection
In diode D3 negative pole end, while connect the first binding post Sc；Diode D3 positive terminal connects the second binding post, together
When connect the output common ports of the first DC/DC converters 5, the first controller 7 turns according to the first DC voltage control the first DC/DC
The working condition of parallel operation.First controller 7 is preferably first comparator.Each sun energon power supply also includes first voltage and sensed
Device 6, it is used to sample the first DC voltage, and the voltage that first comparator 7 is sampled according to first voltage sensor controls control
The working condition of first DC/DC converters, when the voltage that first voltage sensor is sampled is less than reference voltage Vrf2, output
Low level, the low level are input to the Enable Pin of the first DC/DC converters, the first DC/DC converters is stopped.The present invention
Middle setting D3 purpose is that, in the sun energon power source performance deterioration of the branch road, Shi Gai roads power supply disconnects automatically, sets D4's
Purpose is that the sub- power supply for preventing other roads working properly holds energy supply source to it.
Each solar energy grandson power supply is included by the series connection of several photovoltaic cells, photovoltaic cells 1 in parallel or series-parallel connection, the
Two DC/DC converters 4, second controller 3, diode D2 and diode D1, wherein, the positive output end of photovoltaic cells 1 connects
The power input of the 2nd DC/DC converters 4 is connected to, the common port of photovoltaic cells 1 is connected to the 2nd DC/DC converters 4
Power input common port；The 3rd DC voltage that 2nd DC/DC converters 4 export photovoltaic cells 1 is converted to the 4th
DC voltage, the power output end of the 2nd DC/DC converters 4 are connected to diode D2 positive terminal；Diode D2 negative pole end
Diode D1 negative pole end is connected to, while connects the 3rd binding post；Diode D1 positive terminal connects the 4th binding post,
The output common port of the 2nd DC/DC converters 4 is connected simultaneously, and second controller 3 is according to the DC/DC of the 3rd DC voltage control the 2nd
The working condition of converter 4.Second controller 3 is preferably the second comparator.Each sun energon power supply also includes second voltage
Sensor 2, it is used to sample the 3rd DC voltage, and the voltage that the second comparator 3 is sampled according to second voltage sensor 2 controls
The working condition of the 2nd DC/DC converters 4 is controlled, when the voltage that first voltage sensor is sampled is less than reference voltage Vrf1
When, low level is exported, the low level is input to the Enable Pin of the 2nd DC/DC converters, the 2nd DC/DC converters is stopped work
Make.The purpose that D1 is set in the present invention is that, in the photovoltaic cell performance deterioration of the branch road, Shi Gai roads power supply disconnects automatically, if
The purpose for putting D2 is that the grandson's power supply for preventing other roads working properly holds energy supply source to it.
In the present invention, make solar energy grandson's unit Sun Danyuan head and the tail phase adjacent to each other in the solar energy subelement of each branch road
Even, be thusly-formed the unit of electrically coupled in series performance, as tie point solar energy subelement A1 in solar energy grandson's unit A11 the 3rd
Binding post is connected to the power access end of DC/DC converters 5, and A11 the 4th binding post is connected to A21 the 3rd terminals
Son, A21 the 4th binding post are connected to ..., connect Am1 the 3rd binding post, and Am1 the 4th binding post connects public
End.Solar energy grandson's unit A2 of other branch roads ..., An it is identical with the solar energy subelement A1 of tie point.Here no longer repeat.
Although being elaborated with reference to accompanying drawing to the present invention above, it should be recognized by those skilled in the art that
On the premise of without departing from present inventive concept, any modifications and variations made based on the present invention still fall within present invention protection model
Enclose interior content.
Claims (4)
1. a kind of photovoltaic modulation power source communication system of unmanned plane, it includes transmitter and receiver, and the emitter includes swashing
Device, controller, photovoltaic modulation power source and the final power of the progress power amplification of the signal for send driver is encouraged to put
Big device, the instantaneous amplitude of the controller signal to be sent driver provide electric energy to final power amplifier；Photovoltaic is modulated
Power supply includes the DC voltage unit that photo-voltaic power supply module, charger and k levels are electrically in series, and the k is more than or equal to 2
Integer, the DC voltage unit that the charger utilizing photo-voltaic power supply module is electrically in series to k levels provides electric energy, its feature
It is, the photo-voltaic power supply module includes：The sun energon power supply of multiple electrically in parallel responses；Each sun energon power supply includes
Solar energy grandson power supply, the first DC/DC conversions, first comparator, the first diode, the second diode of a string of electrically coupled in series responses
With first voltage sensor, wherein, the positive output end of solar energy grandson's power supply is connected to the power input of the first DC/DC converters
End, the common port of solar energy grandson's power supply are connected to the power input common port of the first DC/DC converters；First DC/DC converters
The first DC voltage that the solar energy grandson power supply of a string of electrically coupled in series responses exports is converted into the second DC voltage, the first DC/
The power output end of DC converters is connected to the positive terminal of the first diode；The negative pole end of first diode is connected to the two or two pole
The negative pole end of pipe, while connect the first binding post；The positive terminal of second diode connects the second binding post；Second diode
Positive terminal simultaneously connect the first DC/DC output common port；First voltage sensor be used for sample the first DC voltage, first
Comparator is joined according to the working condition of the DC/DC converters of the first DC voltage control the first when the first DC voltage is less than first
When examining voltage, the first DC/DC converters are made to be stopped；Each solar energy grandson power supply is included by the series connection of several photovoltaic cells, simultaneously
Photovoltaic cells, the 2nd DC/DC converters, the second comparator, the 3rd diode, the 4th diode of connection or series-parallel connection composition
With second voltage sensor, wherein, the positive output end of photovoltaic cells is connected to the power input of the 2nd DC/DC converters
End, the common port of photovoltaic cells are connected to the power input common port of the 2nd DC/DC converters；2nd DC/DC converters
The 3rd DC voltage that photovoltaic cells export is converted into the 4th DC voltage, the power supply output of the 2nd DC/DC converters
End is connected to the positive terminal of the 3rd diode；The negative pole end of 3rd diode is connected to the negative pole end of the 4th diode, connects simultaneously
The 3rd binding post is connect, that is, is provided out the positive output end of power supply；The positive terminal of 4th diode connects the 4th binding post, the
The positive terminal of four diodes connects the 2nd DC/DC output common port simultaneously, and second voltage sensor is used to sample the 3rd direct current
Voltage, the second comparator is according to the working conditions of the DC/DC converters of the 3rd DC voltage control the 2nd, when the 3rd DC voltage is small
When the second reference voltage so that the 2nd DC/DC converters are stopped.
2. the photovoltaic modulation power source communication system of unmanned plane according to claim 1, it is characterised in that described direct current
Pressure unit includes rechargeable battery pack, and the charger utilizing photo-voltaic power supply module charges to rechargeable battery pack.
3. the photovoltaic modulation power source communication system of unmanned plane according to claim 2, it is characterised in that described direct current
Pressure unit also includes electric switch, and the rechargeable battery pack is accessed in sequential circuit by electric switch.
4. the photovoltaic modulation power source communication system of unmanned plane according to claim 3, it is characterised in that DC voltage unit
Also including tertiary voltage sensor, the tertiary voltage sensor is used for the voltage for detecting rechargeable battery, and by chargeable electricity
The voltage in pond sends controller to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510407249.9A CN105048546B (en) | 2015-07-13 | 2015-07-13 | Photovoltaic modulation power source communication system for unmanned plane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510407249.9A CN105048546B (en) | 2015-07-13 | 2015-07-13 | Photovoltaic modulation power source communication system for unmanned plane |
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| CN105048546B true CN105048546B (en) | 2018-02-27 |
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| KR100683246B1 (en) * | 2006-06-07 | 2007-02-16 | 주식회사 세니온 | Automated electric power distribution system and fixed wireless bridge communication apparatus for the system |
| CN103227649B (en) * | 2013-03-20 | 2015-02-04 | 北京市信息技术研究所 | OFDM (orthogonal frequency division multiplexing) transmitter provided with direct current modulation power supply of unmanned aerial vehicle |
| CN103227722B (en) * | 2013-03-20 | 2016-04-06 | 北京市信息技术研究所 | For the HVDC Modulation power supply ofdm communication system of unmanned plane |
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Effective date of registration: 20190827 Address after: 071000 1188 Lekanan Street, Jingxiu District, Baoding City, Hebei Province Patentee after: National Eagle North Aviation Technology Co., Ltd. Address before: 100071 No. 56 Building, No. 63 West Fourth Ring South Road, Fengtai District, Beijing Patentee before: CHINA EAGLE AVIATION TECHNOLOGY CO., LTD. |