CN105048546A - Photovoltaic modulation power supply communication system applied to unmanned plane - Google Patents
Photovoltaic modulation power supply communication system applied to unmanned plane Download PDFInfo
- Publication number
- CN105048546A CN105048546A CN201510407249.9A CN201510407249A CN105048546A CN 105048546 A CN105048546 A CN 105048546A CN 201510407249 A CN201510407249 A CN 201510407249A CN 105048546 A CN105048546 A CN 105048546A
- Authority
- CN
- China
- Prior art keywords
- voltage
- power supply
- photovoltaic
- communication system
- power source
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention relates to a photovoltaic modulation power supply communication system applied to an unmanned plane and belongs to the field of radio communication. The photovoltaic modulation power supply communication system comprises a transmitter and a receiver. The transmitter comprises an exciter, a controller, a photovoltaic modulation power supply and a final power amplifier which is used for performing power amplification of a signal to be sent by the exciter. The controller controls the final power amplifier for power supplying according to the instant amplitude of the signal to be sent by the exciter. The photovoltaic power utilization of the photovoltaic modulation power supply communication system is high, and the duration of flight of the unmanned plane is prolonged.
Description
Technical field
The present invention relates to a kind of photovoltaic modulation power source communication system for unmanned plane, particularly relate to the photovoltaic modulation power source communication system for unmanned plane that a kind of power-efficient is high, belong to radio communication technology field.
Background technology
Unmanned plane is a kind of based on the not manned aircraft of wireless remotecontrol or self program control.The features such as compared with manned aircraft, it has, and volume is little, cost is low, easy to use, low to do station environmental requirement, battlefield survival is stronger.In modern war, unmanned plane can go deep into forward position, position and one or two hundred kilometers, enemy's rear area and carry out reconnaissance and surveillance to enemy's situation, can as deceiving enemy's bait, interference is implemented to enemy, enemy is attacked, can also communication repeating be carried out, but, unmanned plane needs electric energy when completing its task, if electric energy is once use up, its serving as of task just cannot complete.
Fig. 1 provides the oscillogram of electric energy when being the final power amplifier amplifying signal provided in prior art.As shown in Figure 1, transmit to make
distortionlessly transmitted by wireless channel, need the supply voltage value E provided to be greater than transmitted maximum amplitude at final power amplifying stage, so, most of energy has been consumed by the form with heat energy.And to OFDM(OrthogonalFrequencyDivisionMultiplexing OFDM) system, the peak-to-average ratio of signal is very high, the amplitude com parison of major part signal is low, and only have the Amplitude Ratio of minimum a part of signal larger, and adopt method of supplying power to of the prior art, be fixed the power supply of voltage or electric current to final stage power amplifier, the utilance of power supply is extremely low.
Summary of the invention
For overcoming the shortcoming existed in prior art, goal of the invention of the present invention is to provide a kind of photovoltaic modulation power source communication system for unmanned plane, and the utilance of photo-voltaic power supply is high, can improve continuing the time of unmanned plane.
For realizing described goal of the invention, the invention provides a kind of photovoltaic modulation power source communication system, its transmitter and receiver, described transmitter comprises the final power amplifier that exciter, controller, photovoltaic modulation power source and the signal for sending exciter carry out power amplification, it is characterized in that, the instantaneous amplitude of the signal that exciter will send is provided electric energy to final power amplifier by controller.
Preferably, photovoltaic tune modulation power source comprises the DC voltage unit that photo-voltaic power supply module, charger and k level are electrically in series, described k be greater than or equal to 2 integer, the DC voltage unit that described charger utilizing photo-voltaic power supply module is electrically in series to k level provides electric energy.
Preferably, described DC voltage unit comprises rechargeable battery pack, and described charger utilizing photo-voltaic power supply module is charged to rechargeable battery pack.
Preferably, described DC voltage unit also comprises electric switch, and described rechargeable battery pack is by electric switch access sequential circuit.
Preferably, DC voltage unit also comprises voltage sensor, and described voltage sensor for detecting the voltage of rechargeable battery, and sends the voltage of rechargeable battery to controller.
Compared with prior art, the photovoltaic modulation power source communication system for unmanned plane provided by the invention, the utilance of photo-voltaic power supply is high, can improve continuing the time of unmanned plane.
Accompanying drawing explanation
Fig. 1 provides the oscillogram of electric energy when being the final power amplifier amplifying signal provided in prior art;
Fig. 2 is the composition frame chart of UAV system photovoltaic modulation power source transmitter provided by the invention;
Fig. 3 is that photovoltaic provided by the invention can the composition frame chart of modulation power source;
Fig. 4 is the composition frame chart of controller provided by the invention;
Fig. 5 provides the oscillogram of electric energy when being final power amplifier amplifying signal provided by the invention;
Fig. 6 is the circuit diagram of solar energy module provided by the invention.
Embodiment
Below in conjunction with accompanying drawing, describe the present invention in detail.
Fig. 2 is the composition frame chart of the photovoltaic modulation power source communication system for unmanned plane provided by the invention.As shown in Figure 2, the invention provides a kind of photovoltaic modulation power source communication system for unmanned plane, it comprises transmitter and receiver, described transmitter comprises: exciter, controller (MCU), HVDC Modulation power supply, signal for sending exciter carries out the final power amplifier of power amplification, for the output filter that mates with the input impedance of transmitting antenna the output impedance of final power amplifier with for the signal of telecommunication amplified through final power being become magnetic signal and being transmitted into the transmitting antenna in space, described receiver comprises: for space magnetic signal being become the reception antenna of the signal of telecommunication, the signal of telecommunication for being received by reception antenna carries out the small signal amplifier amplified, local oscillation signal for small signal amplifier institute's amplifying signal and the first oscillator at the corresponding levels being produced carries out the first frequency mixer that down-conversion forms intermediate-freuqncy signal, the A-D converter of data-signal is formed for intermediate-freuqncy signal being carried out analog to digital conversion, for removing the time interval in data-signal, then carry out serial to parallel conversion successively, FFT conversion and the ofdm demodulator of parallel serial conversion and the signal for being exported by ofdm demodulator carry out the symbol inverse mapper of symbol inverse mapping.Exciter comprises symbol mapper, OFDM modulation device, D/A translation circuit, frequency mixer, oscillator at the corresponding levels and prime amplifier, wherein, symbol mapper is used for inputted serial binary code stream being carried out grouping and forms data symbol and data symbol is mapped to complex data sequence, OFDM modulation device is for carrying out serial to parallel conversion by complex data sequence and being modulated to K subcarrier, and the data on K subcarrier are designated as " img-format=" jpg " img-content=" drawing " orientation=" portrait " inline=" no "/>
,
,
; Then carry out IFFT conversion and form parallel time domain data
,
...,
, namely
,
...,
be an OFDM symbol, described parallel time domain data carried out the OFDM symbol that parallel serial conversion forms serial, then between each OFDM symbol, insert guard time gap-forming OFDM symbol; Data flow is carried out digital-to-analogue conversion and is formed analog signal by D/A translation circuit
; Second frequency mixer is used for analog signal
the local oscillation signal produced with the second oscillator at the corresponding levels
carry out up-conversion and form signal to be sent
, prime amplifier is to sent signal
carry out amplifying and give final power amplifier and carry out power amplification.The instantaneous amplitude of the signal that exciter will send is provided electric energy to final power amplifier by controller.
Still as shown in Figure 2, the binary number stream of input carries out grouping and forms data symbol, and data symbol maps through symbol mapper and forms complex data sequence, becomes and open the parallel low rate data streams of K bar after complex data sequence serial to parallel conversion
,
,
; The sample value that IFFT conversion obtains time domain is carried out to it:
，
Wherein, m is the discrete point of frequency domain, and k is the discrete point of time domain.
Fig. 3 is that photovoltaic provided by the invention can the composition frame chart of modulation power source.As shown in Figure 3, the DC voltage unit that photovoltaic is adjusted modulation power source to comprise k+1 photo-voltaic power supply module k+1 charger and k+1 level to be electrically in series, described k be greater than or equal to 2 integer, described charger utilizing photo-voltaic power supply module provides electric energy to DC voltage unit.
Wherein, the positive pole of rechargeable battery E0 is connected to the negative pole of diode D0, negative pole connects common port, the positive pole of diode D0 is connected to the power output end of the 1st charger, the common male end of the 1st charger is connected with the common port of rechargeable battery E0, the power input of the 1st charger is connected to the output of the 1st photo-voltaic power supply module, and the power input of the 1st charger is connected to the output of the 1st photo-voltaic power supply module.
First DC voltage unit M1 is connected to the output of the 2nd charger by diode D11, the power input of the 2nd charger is connected to the output of the 2nd photo-voltaic power supply module.First DC voltage unit M1 comprises a rechargeable battery pack E11, a sustained diode 12, electronic switch T11 and voltage sensor U11, electronic switch is CMOS tube, and the positive pole of described battery pack E11 is connected to the negative pole of sustained diode 12; The positive pole of sustained diode 12 is connected to the drain electrode of CMOS tube, and the source electrode of CMOS tube T11 is connected to the negative pole of described battery pack E11, and the grid of CMOS tube T11 is connected to an output of controller; Two terminals of voltage sensor U11 are connected to the two ends of rechargeable battery pack E11, for detecting the voltage at rechargeable battery E11 two ends, and result of detection are sent to an input of controller.The break-make of the voltage control CMOS tube T11 of the chargeable electric current that the instantaneous amplitude of the signal that controller will send according to exciter and voltage sensor U11 detect.CMOS tube T11 works on off state, and when inputting a high potential to the grid of CMOS tube T11, CMOS tube T11 conducting, the negative pole of battery pack E11 is equivalent to the positive pole receiving sustained diode 12.The voltage at sustained diode 12 two ends is U1, and upper end is just, lower end is negative.When inputting an electronegative potential to the grid of CMOS tube T11, CMOS tube T11 ends.The voltage at sustained diode 12 two ends is diode junction voltage.
In like manner, second DC voltage unit M2 is connected to the output of the 3rd charger by diode D21, and the power input of the 3rd charger is connected to the output of the 3rd photo-voltaic power supply module.Second DC voltage unit M2 comprises a rechargeable battery pack E21, a sustained diode 22, electronic switch T21 and voltage sensor U21, electronic switch is CMOS tube, and the positive pole of described battery pack E21 is connected to the negative pole of sustained diode 22; The positive pole of sustained diode 22 is connected to the drain electrode of CMOS tube, and the source electrode of CMOS tube T21 is connected to the negative pole of described battery pack E21, and the grid of CMOS tube T21 is connected to an output of controller; Two terminals of voltage sensor U21 are connected to the two ends of rechargeable battery pack E21, for detecting the voltage at rechargeable battery E21 two ends, and result of detection are sent to an input of controller.The break-make of the voltage control CMOS tube T21 of the chargeable electric current that the instantaneous amplitude of the signal that controller will send according to exciter and voltage sensor U21 detect.CMOS tube T21 works on off state, and when the grid of CMOS tube T21 inputs a high potential, CMOS tube T21 conducting, the negative pole of battery pack E21 is equivalent to the positive pole receiving sustained diode 22.The voltage at sustained diode 22 two ends is U2, and upper end is just, lower end is negative.When the grid of CMOS tube T21 inputs an electronegative potential, CMOS tube T21 ends.The voltage at sustained diode 22 two ends is diode junction voltage.
The like, a kth DC voltage unit Mk is connected to the output of kth+1 charger by diode Dk1, the power input of kth+1 charger is connected to the output of kth+1 photo-voltaic power supply module.A kth DC voltage unit Mk comprises a rechargeable battery pack Ek1, sustained diode k2, an electronic switch Tk1 and voltage sensor Uk1, and electronic switch is CMOS tube, and the positive pole of described battery pack Ek1 is connected to the negative pole of sustained diode k2; The positive pole of sustained diode k2 is connected to the drain electrode of CMOS tube, and the source electrode of CMOS tube Tk1 is connected to the negative pole of described battery pack Ek1, and the grid of CMOS tube Tk1 is connected to an output of controller; Two terminals of voltage sensor Uk1 are connected to the two ends of rechargeable battery pack Ek1, for detecting the voltage at rechargeable battery Ek1 two ends, and result of detection are sent to an input of controller.The break-make of the voltage control CMOS tube Tk1 of the chargeable electric current that the instantaneous amplitude of the signal that controller will send according to exciter and voltage sensor Uk1 detect.CMOS tube Tk1 works on off state, and when inputting a high potential to the grid of CMOS tube Tk1, CMOS tube Tk1 conducting, the negative pole of battery pack Ek1 is equivalent to the positive pole receiving sustained diode k2.The voltage at sustained diode k2 two ends is Uk, and upper end is just, lower end is negative.When inputting an electronegative potential to the grid of CMOS tube Tk1, CMOS tube Tk1 ends.The voltage at sustained diode k2 two ends is diode junction voltage.
The positive pole of rechargeable battery E0 is connected to the positive pole of the diode D12 of the 1st DC voltage unit M1, the negative pole of the diode D12 of the 1st DC voltage unit M1 is connected to the positive pole of the diode D22 of the 2nd DC voltage unit M2, the negative pole of the diode D22 of the 2nd DC voltage unit M2 is connected to the positive pole of the diode D22 of the 3rd DC voltage unit M3, the negative pole of rechargeable battery E0 connects common port, so, if each DC voltage unit M1, M2, when with the conducting all simultaneously of the electronic switch of Mk, the total output total voltage of photovoltaic modulation power source be U total=E0+E11+E21+ ... + Ek1, it is for preventing distorted signals that the present invention arranges a battery E0.
The magnitude of voltage that in the present invention, each DC voltage unit exports is identical, 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, described controller comprises k comparator and (k-1) individual subtracter, the instantaneous amplitude UF of the signal that the in-phase end input actuator of the 1st comparator CO1 will send, end of oppisite phase inputs the voltage U 11 that the first voltage sensor detects, if UF is greater than U11, then comparator CO1 exports high level, utilizes this Automatic level control T11, makes its conducting; Then, instantaneous amplitude UF and voltage U 11 are subtracted each other through subtracter S2, is then sent to the in-phase end of comparator CO2, the end of oppisite phase of comparator CO2 inputs the voltage U 21 that the second voltage sensor detects, if UF is greater than U21, then comparator CO2 exports high level, utilizes this Automatic level control T21, makes its conducting, until the output of a level comparator is low level, wherein a is the number between 1 to k, now, export total voltage be U total=E0+E11+E21+ ... + Ea1.
Effect as shown in Figure 5, when the signal that will launch
amplitude large time, the electronic switch that can make each DC voltage unit conducting all simultaneously, the power supply U provided is always each power supply sum.When the amplitude hour of the signal that will launch, can make partial power conducting, the power supply provided is each DC voltage unit sum of conducting, that is, the voltage provided is little, so, just improves the utilance of photo-voltaic power supply.
Fig. 6 is the circuit diagram of photo-voltaic power supply module provided by the invention.As shown in Figure 6, photo-voltaic power supply module comprises: multiple electricity response sun in parallel energon power supply: the first sun energon power supply A1, second sun energon power supply A2, with the n-th sun energon power supply An, each sun energon power supply comprises multiple solar energy grandson unit be electrically in series, namely, each sun energon power supply comprises the solar energy grandson unit from aircraft end face of electricity series connection, from the solar energy grandson unit before aircraft, from the solar energy grandson unit on the aircraft left side, from the solar energy grandson unit on the aircraft right side with from the solar energy grandson unit after aircraft.Each sun energon power supply comprises solar energy grandson power supply, DC/DC transducer 5, first controller 7, the diode D4 and diode D3 of a crosstalk series connection response, wherein, the positive output end of solar energy grandson power supply is connected to the power input of a DC/DC transducer 5, and the common port of solar energy grandson power supply is connected to the power supply input common port of a DC/DC transducer 5; The solar energy grandson power supply of one crosstalk series connection response is exported the first direct voltage and is converted to the second direct voltage by the one DC/DC transducer 5, and the power output end of a DC/DC transducer 5 is connected to the positive terminal of diode D4; The negative pole end of diode D4 is connected to the positive terminal of diode D3, connects the first binding post Sc simultaneously; The negative pole end of diode D3 connects the second binding post, and connect the output common port of a DC/DC transducer 5, the first controller 7 is according to the operating state of the first DC voltage control the one DC/DC transducer simultaneously.First controller 7 is preferably the first comparator.Each sun energon power supply also comprises the first voltage sensor 6, it is for the first direct voltage of sampling, first comparator 7 controls the operating state of a DC/DC transducer according to the voltage control that the first voltage sensor is sampled, when the voltage that the first voltage sensor is sampled is less than reference voltage Vrf2, output low level, this low level is input to the Enable Pin of a DC/DC transducer, and a DC/DC transducer is quit work.The object arranging D3 in the present invention is, when the sun energon power source performance deterioration of this branch road, Shi Gai road power supply disconnects automatically, and the object arranging D4 is that the sub-power supply preventing other road working properly holds for the energy to it.
Each solar energy grandson power supply comprise connected by several photovoltaic cell, photovoltaic cells 1, the 2nd DC/DC transducer 4, second controller 3, the diode D2 and diode D1 of in parallel or series-parallel connection, wherein, the positive output end of photovoltaic cells 1 is connected to the power input of the 2nd DC/DC transducer 4, and the common port of photovoltaic cells 1 is connected to the power supply input common port of the 2nd DC/DC transducer 4; The 3rd direct voltage that photovoltaic cells 1 exports by the 2nd DC/DC transducer 4 is converted to the 4th direct voltage, and the power output end of the 2nd DC/DC transducer 4 is connected to the positive terminal of diode D2; The negative pole end of diode D2 is connected to the positive terminal of diode D1, connects the 3rd binding post simultaneously; The negative pole end of diode D1 connects the 4th binding post, and connect the output common port of the 2nd DC/DC transducer 4, second controller 3 is according to the operating state of the 3rd DC voltage control the 2nd DC/DC transducer 4 simultaneously.Second controller 3 is preferably the second comparator.Each sun energon power supply also comprises the second voltage sensor 2, it is for the 3rd direct voltage of sampling, second comparator 3 controls the operating state of the 2nd DC/DC transducer 4 according to the voltage control that the second voltage sensor 2 is sampled, when the voltage that the first voltage sensor is sampled is less than reference voltage Vrf1, output low level, this low level is input to the Enable Pin of the 2nd DC/DC transducer, and the 2nd DC/DC transducer is quit work.The object arranging D1 in the present invention is, when the photovoltaic cell performance deterioration of this branch road, Shi Gai road power supply disconnects automatically, and the object arranging D2 is that the grandson's power supply preventing other road working properly holds for the energy to it.
In the present invention, solar energy grandson unit grandson's unit adjacent one another are in the solar energy subelement of each branch road is joined end to end, the unit forming electricity series connection performance like this, as in the solar energy subelement A1 of the first branch road, the 3rd binding post of solar energy grandson unit A11 is connected to the power access end of DC/DC transducer 5,4th binding post of A11 is connected to the 3rd binding post of A21,4th binding post of A21 is connected to, connect the 3rd binding post of Am1, the 4th binding post of Am1 connects common port.Other branch road solar energy grandson unit A2 ..., An is identical with the solar energy subelement A1 of the first branch road.Here no longer repeat.
Although below done to elaborate to the present invention by reference to the accompanying drawings, it should be recognized by those skilled in the art that under the prerequisite not departing from the present invention's design, any improvement of making based on the present invention and convert the content still belonged in scope.
Claims (5)
1. a photovoltaic modulation power source communication system, its transmitter and receiver, described transmitter comprises the final power amplifier that exciter, controller, photovoltaic modulation power source and the signal for sending exciter carry out power amplification, it is characterized in that, the instantaneous amplitude of the signal that exciter will send is provided electric energy to final power amplifier by controller.
2. photovoltaic modulation power source communication system according to claim 1, it is characterized in that, photovoltaic tune modulation power source comprises the DC voltage unit that photo-voltaic power supply module, charger and k level are electrically in series, described k be greater than or equal to 2 integer, the DC voltage unit that described charger utilizing photo-voltaic power supply module is electrically in series to k level provides electric energy.
3. the photovoltaic modulation power source communication system of unmanned plane according to claim 2, it is characterized in that, described DC voltage unit comprises rechargeable battery pack, and described charger utilizing photo-voltaic power supply module is charged to rechargeable battery pack.
4. the photovoltaic modulation power source communication system of unmanned plane according to claim 3, it is characterized in that, described DC voltage unit also comprises electric switch, and described rechargeable battery pack is by electric switch access sequential circuit.
5. the photovoltaic modulation power source communication system of unmanned plane according to claim 4, it is characterized in that, DC voltage unit also comprises voltage sensor, and described voltage sensor for detecting the voltage of rechargeable battery, and sends the voltage of rechargeable battery to controller.
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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105048546A true CN105048546A (en) | 2015-11-11 |
| CN105048546B CN105048546B (en) | 2018-02-27 |
Family
ID=54454859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510407249.9A Active CN105048546B (en) | 2015-07-13 | 2015-07-13 | Photovoltaic modulation power source communication system for unmanned plane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105048546B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100683246B1 (en) * | 2006-06-07 | 2007-02-16 | 주식회사 세니온 | Automated electric power distribution system and fixed wireless bridge communication apparatus for the system |
| CN103227649A (en) * | 2013-03-20 | 2013-07-31 | 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 |
| CN103227722A (en) * | 2013-03-20 | 2013-07-31 | 北京市信息技术研究所 | DC modulation power supply OFDM communication system for unmanned aerial vehicle |
-
2015
- 2015-07-13 CN CN201510407249.9A patent/CN105048546B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100683246B1 (en) * | 2006-06-07 | 2007-02-16 | 주식회사 세니온 | Automated electric power distribution system and fixed wireless bridge communication apparatus for the system |
| CN103227649A (en) * | 2013-03-20 | 2013-07-31 | 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 |
| CN103227722A (en) * | 2013-03-20 | 2013-07-31 | 北京市信息技术研究所 | DC modulation power supply OFDM communication system for unmanned aerial vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105048546B (en) | 2018-02-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103595470B (en) | A kind of low-power-consumption infrared optical communication system | |
| CN103227722B (en) | For the HVDC Modulation power supply ofdm communication system of unmanned plane | |
| CN204886933U (en) | Unmanned aerial vehicle photovoltaic modulation power source transmitter | |
| CN108629959B (en) | Remote control underwater acoustic communication system and unmanned underwater vehicle | |
| CN204835587U (en) | A photovoltaic modulation power source communication system for unmanned aerial vehicle | |
| CN208589137U (en) | A kind of remote control underwater sound communication system and UAV navigation | |
| CN103227649B (en) | OFDM (orthogonal frequency division multiplexing) transmitter provided with direct current modulation power supply of unmanned aerial vehicle | |
| CN204886371U (en) | Radio charger | |
| CN203734358U (en) | Wireless charging device based on wireless power transmission | |
| CN204478392U (en) | Current loop communication circuit and air-conditioner | |
| CN105048546A (en) | Photovoltaic modulation power supply communication system applied to unmanned plane | |
| CN105049065A (en) | Photovoltaic modulation power supply transmitter for unmanned plane | |
| CN104780601B (en) | Ofaiterative, dynamic power separation method in more relaying letter energy simultaneous interpretation networks | |
| CN104668736A (en) | Remote control circuit of argon arc welding machine | |
| CN107069993A (en) | Device for converting electric energy based on wireless receiving | |
| CN202634088U (en) | One-to-many wireless charging system in sensor network for internet of things | |
| KR101462359B1 (en) | Apparatus and Method for Simultaneous Reception of Wireless Optical Communication Signal and Optical Power Energy using a Solar Cell | |
| CN204129227U (en) | A kind of antenna automatic switch-over circuit | |
| ur Rehman et al. | LabVIEW based modeling of SWIPT system using BPSK modulation | |
| CN208142902U (en) | A kind of wireless charging hearing-aid device | |
| CN213243623U (en) | Lithium battery charging system of new energy automobile | |
| CN207410099U (en) | A kind of unmanned plane wireless charging system of wind-light-electricity complementary | |
| Zhu et al. | An Mbps High-Bitrate Power Line Communication Based on Power-Signal Direct Superposition Method for AUVs | |
| CN206341040U (en) | Wireless charging device | |
| CN202268071U (en) | Wireless-transmission intelligent convergence box |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
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. |
|
| TR01 | Transfer of patent right |