CN110429723A - Wireless charging microwave power Transmission system - Google Patents
Wireless charging microwave power Transmission system Download PDFInfo
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- CN110429723A CN110429723A CN201910685502.5A CN201910685502A CN110429723A CN 110429723 A CN110429723 A CN 110429723A CN 201910685502 A CN201910685502 A CN 201910685502A CN 110429723 A CN110429723 A CN 110429723A
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- electrically charged
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- wireless charging
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/20—Circuit arrangements or systems for wireless supply or distribution of electric power using microwaves or radio frequency waves
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/80—Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention proposes a kind of wireless charging microwave power Transmission systems, effectively can carry out remote non-contacting wireless charging to multiple equipment simultaneously using the present invention.The technical scheme is that: charging signals transmitter is by charging signals transmitting antenna, and in the form of a pulse, multiple equipment that are electrically charged into chargeable radiation areas continuously emit the chargeable signal of microwave wireless；It is electrically charged equipment and issues charge request signal, intelligent multi-beam tracking antenna is periodically positioned and is tracked to charge request signal, search is electrically charged the charge request signal location of equipment, according to determining charge request signal location, digital processing unit calculates the amplitude and phase needed at each antenna element port by transmission channel, so that the microwave ejected wave beam alignment generated is electrically charged equipment in chargeable region, it is electrically charged equipment and receives microwave and generate direct current.By effectively charging to remote mobile device to equipment positioning and tracking is electrically charged.
Description
Technical field
The present invention relates to one kind can be widely applied to the consumer electronics products such as smart phone, wearable device, intelligent family
The microwave wireless charging system in the fields such as residence, automotive electronics, Portable medical electronic product, in particular for using microwave form
The wireless transmission of energy is carried out, realizes the microwave wireless charging system to one or more fixations or charging of mobile devices.
Background technique
With becoming increasingly abundant for electronic product function, energy consumption also increasingly increases, and is increasingly becoming and restricts electronic product hair
One big obstacle of exhibition.In charging, traditional power equipment is mainly transmitted electricity in the form of plain conductor, this " wired "
Power transmission mode there are many problems.Such as electric shaver, electric toothbrush, they are often used in a humidity environment,
The presence of electrical connection may result in accident.In common wired connection, the breakage of electric wire and the aging etc. of socket will
A possibility that increasing electric shock, especially when the natural calamities such as floods, earthquake are come interim, wired power transmission network charging usually can be by
The case where destroying and be not available, or even leaking electricity further deteriorates the condition of a disaster.There are problems to greatly reduce power supply system for these
The safety and reliability of system.In addition to this, the presence of wired feeding network and power supply line that is huge and being interweaved can also make
At the waste of resource and space, increase the cost of construction and maintenance.In some special cases, as in nuclear pollution area, cement
The application scenarios such as portion, medical treatment, traditional wired power transmission mode are not available completely.With the development of science and technology and social progress,
Wired transmission of electricity can not meet the application demand that people are grown to even greater heights comprehensively, and wirelessly realize energy transmission
Technology is increasingly taken seriously.From the law of electromagnetic induction: alternating current can generate alternating magnetic field, and magnetic field is as energy
A kind of form can pass through air, and in receiving end, the magnetic field of alternation can induce electric current again.Therefore, it can use electromagnetic induction
Realize non-contact power supply, this is a kind of common power transmission technology wirelessly to replace wired progress, i.e., wireless power passes
Transferring technology.Wireless charging technology, i.e. Wireless charging technology refer to that the device with battery does not need to borrow
Help electric lead, is medium using electromagnetic field, electric field wave (microwave, light wave etc.) or mechanical wave (ultrasonic wave etc.) etc., with wireless
Mode receiving end generate electric current, realize the wireless transmission of electric power.Wireless charging technology is derived from wireless power conveying technology.
Wireless charging technology mainly has induction, field coupling formula, magnetic resonance type and four kinds of radio waves type at present
Mode.These types of technology is respectively suitable for short distance, intermediate range and long distance wireless and charges.The first, induction is by " magnetic coupling
Short distance (grade) wireless charging technology that conjunction " carries out, in induction charging process, built in cradle and terminal difference
Coil, when the two is close to each other, charging pedestal toilet starts to power to terminal.To improve power supply efficiency, the position between coil must
It must be aligned, there can be no offsets.By the development and popularization of many years, induction wireless charging technology had it is high-efficient,
Technically simple advantage.But in this charging modes, it is desirable that being electrically charged equipment must be placed on cradle, to guarantee power transmission
Coil fits like a glove with power receiving coil center, once misplacing, efficiency of transmission will sharply decline.Second, electric field coupling
Box-like is short distance (grade) the wireless charging technology carried out by " field coupling " mode, it utilizes and vertically couples two
The asymmetric dipole of group and the induction field that generates realize wireless power transmission.Although it has small in size and generates heat low excellent
Point, but exploitation and supporter are less, are unfavorable for popularizing, while the problem small there is also inefficient, transimission power.The third,
Magnetic resonance type is intermediate range (Centimeter Level) the wireless charging technology carried out by " electromagnetic coupling resonance " mode, it is by electric energy with non-spoke
The form of penetrating property resonance is transmitted.With induction, it is also using magnetic field as transmission medium, but relative to electromagnetism
Induction type, it improves transmission range, while efficiency with higher and good flexibility.But the wireless charging of magnetic resonance type
System structure is complex, it usually needs a transmitting coil, two resonance coils and a receiving coil.In addition, sending and receiving end
Distance is remoter, and the electricity being lost in transmission is more, also still under test in the industry.Currently, magnetic resonance type technically exists
Difficult point be miniaturization and high efficiency.4th kind, radio waves type is that the long distance wireless carried out by " electromagnetic radiation " mode fills
Power technology, energy is emitted to the receiving antenna of distal end by it by electric energy in the form of microwave radiation, then passes through the processing such as rectification
DC power output afterwards, use are the most convenient.But there are efficiencies that very low, component volume is not easy to plant greatly for this wireless charging mode
The drawbacks of entering.In addition, it can also generate a large amount of electromagnetic radiation, other electronic equipments are interfered, while there is also healthy hidden dangers.At this
In four kinds of wireless charging technologies, be most widely used and it is mature be induction wireless charging technology, other wireless chargings
Technology still has many technical problems not solve, there are also a distances from practical application also in experimental stage.But it is based on electromagnetism
The wireless charging system transmission range of induction type is very short, is not received generally by market and consumer, thus wireless charging
Market could not also be expanded rapidly as expected.Other than above four kinds common wireless charging technologies, there is also with ultrasonic wave
With the wireless charging technology of form of light waves.Wherein using ultrasound modalities wireless charging technology there is also transmission range it is short (li
Meter level), vulnerable to barrier influence the problem of；Although the wireless charging technology using form of light waves has good transmission range,
And it is able to maintain the concentration of energy, but this charging transmission mode can only carry out the energy transmission of horizon range, and exist easy
It is influenced and the jejune problem of technology by barrier.
In the long distance wireless charging technique of radio waves type, the wireless transmission of energy is carried out in the form of microwave, is received
After side receives energy wave, the available direct current of equipment is reduced to by resonant circuit and rectification circuit.This mode
Similar to our common WiFi wireless networks, hair receives both sides and all respectively possesses a special antenna, the difference is that this
Technology transmitting is not signal but electric flux.The frequency of microwave is between 300MHz~300GHz, and wavelength is then in millimeter-point
Rice-meter level is other, and the ability of microwave transmission energy is very powerful, and the micro-wave oven in family is the fuel factor for using it.And microwave
Wireless charging technology is then by microwave energy converted back into electric signals, position and high flexible, and relevant device and terminal are very micro-
Small convenient, as long as equipment is placed near charging equipment, the requirement to position is very low, is to be best suitable for a kind of natural charging
Mode.The shortcomings that microwave resonance mode is that energy is to dissipate from all directions, therefore energy utilization efficiency is low.When equipment transmitting-receiving is double
When side is completely coincident, induction and radio waves type energy efficiency all reaches peak value, but induction significantly superior
Victory.It is induction to will appear quick decaying but as the direction X-Y is subjected to displacement, and radio waves type gentle will then obtain
It is more, even if displacement is larger also to have comparable availability.By analyzing it can be found that the remote-wireless based on radio waves type
Charging technique has good development prospect.
With the development of technology of Internet of things, wish to be electrically charged equipment even movement to multiple simultaneously and set in most scenes
It is standby to carry out stable, effective remote-wireless charging.Campaign-styled microwave wireless charging system is the good way for solving the problems, such as this
Multi-beam irradiation may be implemented in diameter, the microwave energy of transmitting antenna radiation.Although it is serious that it haves the shortcomings that energy dissipates,
Phased array antenna can be used, is resolved by adjusting the Aperture field distribution of antenna.Phased array antenna is in array antenna
On the basis of the beam scanning antennas that grows up do not need antenna during entire beam scanning and carry out any mechanical movement,
Therefore phased array antenna is with beam shape quickly changes, wave beam quickly scans, high reliability.In addition, working as phased array
When antenna is as receiving antenna, the function of positioning and track may be implemented.Traditional phased array antenna commonly used in transmitting or
Receive microwave signal, primary concern is that the quality of transmitting signal, the entrained energy of microwave signal itself Transmitting and Receiving End it
Between efficiency of transmission be extremely low.
Summary of the invention
The present invention in view of the deficiency of the prior art place, provide one kind can and meanwhile effectively to multiple equipment into
The remote charging of row, and to the position of equipment, there is no stringent limitations, even if being electrically charged the state that equipment is in mobile, all
The wireless charging microwave power Transmission system of wireless non-contact charge may be implemented.
In the present invention, above-mentioned purpose can be realized by following measures, a kind of wireless charging microwave power transmission system
System, comprising: in transmitting terminal, positioning, tracking are electrically charged the intelligent multi-beam tracking antenna 1 of equipment for setting, send out with charging signals
Penetrate the charging signals transmitter 2 of antenna 3, it is characterised in that: charging signals transmitter 2 is by charging signals transmitting antenna 3, with arteries and veins
The form of punching, multiple equipment that are electrically charged into chargeable radiation areas continuously emit microwave wireless charging signals；It is electrically charged and sets
Preparation goes out charge request signal, and intelligent multi-beam tracking antenna 1 is periodically positioned and tracked to charge request signal, searched
Rope is electrically charged the charge request signal location of equipment, and according to determining charge request signal location；Digital processing unit 10 is based on
Multibeam synthesis algorithm calculates the amplitude and phase needed at each antenna element port by transmission channel 9, so as to generate
Microwave beam alignment is electrically charged equipment in chargeable region, is electrically charged equipment by wireless charging receiver and receives microwave
And generate direct current.
The present invention has the advantages that compared with the prior art.
The present invention is based on intelligent multi-beams to track antenna, is given in the form of microwave and is electrically charged equipment offer energy, inside
Multibeam synthesis algorithm in digital processing unit 10 calculates generation alignment and is electrically charged each antenna element needed for the microwave beam of equipment
Amplitude and phase at port.When needing to charge, it is electrically charged equipment transmitting charge request signal；Intelligent multi-beam tracks antenna 1
After (antenna improved on the basis of phased array antenna, suitable for this system) receives charge request signal, it is verified,
Then start periodically to search for and position the position for being electrically charged equipment, by adjusting the amplitude and phase at each antenna element port
Position is electrically charged equipment to control wave beam alignment, realizes the wireless charging to equipment.Equipment is electrically charged continuously to send out in the form of a pulse
Charge request signal is penetrated, by positioning and tracking, intelligent multi-beam tracking antenna 1 will generate alignment always and be electrically charged the micro- of equipment
Wave wave beam, ensure that the stability, continuity and good transmission range of charging process, and may be implemented to be filled to multiple simultaneously
Electric equipment charging.
Intelligence multi-beam tracking antenna of the present invention passes through control transmission channel 9 according to equipment positioning and tracking is electrically charged
Amplitude and phase needed for generating, required microwave beam is given off by antenna array 7, is received and is irradiated by receiving antenna 13
The chargeable microwave power signal received is converted into can be used for being electrically charged by microwave energy on it by rectifier 14
The DC energy that device battery charges or directly powers.Realize the microwave electric energy transmitting of wireless non-contact charge, and can be same
When charge to multiple equipment, and to the position of equipment there is no stringent limitation, flexibility in use is high, substantially increases electricity
The reliability and safety of device.Relative to the movement speed for being generally electrically charged equipment, the time of location Calculation and Wave beam forming is very
Short (millisecond magnitude), it is sufficient to which guarantee is electrically charged lasting charging of the equipment in moving process.Transmission loss is small in an atmosphere for microwave,
And by optimizing the amplitude and phase at each antenna element port, the concentration of microwave radiation energy may be implemented, to overcome
The problem of microwave energy dissipates realizes effective wireless charging at a distance.
Intelligence multi-beam tracking antenna of the present invention periodically monitoring is electrically charged the position of equipment, continuouslys optimize each day of adjustment
Amplitude and phase at line unit port, position and track it is multiple be electrically charged equipment, control forms multi-beam directional diagram, guarantees micro-
Wave wave beam be aligned always it is multiple be electrically charged equipment, realize and the effective and lasting charging of equipment be electrically charged to multiple, movement, pass through this
Kind mode can overcome the problems, such as that the prior art is difficult to charge to the equipment in movement.
Detailed description of the invention
By further reading following description and drawings, these and other features of the invention will become more clear
Chu.
Examples of the present invention will be described by way of reference to the accompanying drawings, in which:
Fig. 1 is the schematic diagram of a scenario of wireless charging microwave power Transmission system of the present invention.
Fig. 2 is the functional block diagram of the multi-beam intelligent-tracking circuit of Fig. 1 multi-beam tracking antenna.
Fig. 3 is the structural block diagram that Fig. 1 is electrically charged wireless charging receiver in equipment.
In figure: 1 intelligent multi-beam tracking antenna, 2 charging signals transmitters, 3 charging signals transmitting antennas, 4 No.1s are filled
Electric equipment, 5 No. two are electrically charged equipment, and 6 No. three are electrically charged equipment, 7 antenna array, 8 receiving channels, 9 transmission channels, at 10 numbers
Manage device, 11 transmitting antennas, 12 charge request signal projectors, 13 receiving antennas, 14 rectifiers.
Specific embodiment
Refering to fig. 1, Fig. 2.In preferred embodiment described below, a kind of wireless charging microwave power Transmission system, packet
Include: in transmitting terminal, positioning, tracking are electrically charged the intelligent multi-beam tracking antenna 1 of equipment for setting, have charging signals transmitting antenna
3 charging signals transmitter 2, wherein intelligent multi-beam tracking antenna 1 is placed in eminence, is electrically charged equipment and is located below.Intelligence
The array front form that multi-beam tracking antenna 1 is structured the formation using multiple feeds, and select 5G network frequency range as working frequency.Hair
The charging signals transmitter 2 for penetrating end passes through transmitting antenna 3 in the chargeable signal of chargeable area radiation；The wireless charging of receiving end
After receiver receives signal, charge request signal will be emitted by transmitting antenna 11, the charging that antenna array 7 receives receiving end is asked
After seeking signal, digital processing unit 10 is passed to by receiving channel 8, establishes communication link, and constantly updated positioning and be electrically charged and set
Standby position.Charging signals transmitter 2 is by charging signals transmitting antenna 3, in the form of a pulse, into chargeable radiation areas
Multiple equipment that are electrically charged continuously emit microwave wireless charging signals；It is electrically charged equipment and issues charge request signal, the more waves of intelligence
Beam tracking antenna 1 is periodically positioned and is tracked to charge request signal, and search is electrically charged the charge request signal of equipment
Position, and according to determining charge request signal location, digital processing unit 10 is based on Multibeam synthesis algorithm, and calculating passes through transmitting
The amplitude and phase needed at each antenna element port corresponding to channel 9, so that the microwave beam generated is directed at chargeable area
It is electrically charged equipment in domain, equipment is electrically charged and microwave is received by wireless charging receiver and generates direct current.
Refering to Fig. 2.Multi-beam intelligent-tracking circuit includes that the reception of connection antenna array 7 and digital processing unit 10 arranged side by side is logical
Road 8 and transmission channel 9.Digital processing unit 10 includes: Mutual coupling DOA locating module, Direct Digital Synthesis-DDS and Duo Bo
Beam formation algorithm module, Mutual coupling DOA locating module are based on DOA direction of arrival information and carry out Wave beam forming, position quilt
Charging equipment position, DDS generate baseband signal, and Multibeam synthesis algoritic module calculates each day using Multibeam synthesis algorithm
Optimal amplitude and phase of line unit, and issue control signal, finally make to generate at each antenna element port optimal amplitude and
Phase realizes digital beam froming.Multibeam synthesis algoritic module in digital processing unit 10, the Multibeam synthesis algorithm of use
It can be adaptive beam-forming algorithm, genetic algorithm, particle swarm algorithm or neural network algorithm etc..
Receiving channel 8 include: the sequentially connected amplifier of multichannel, filter, frequency mixer, analog-digital converter ADC and
Frequency synthesizer between parallel duplex frequency mixer, wherein multichannel pmultiple amplifier amplifies 7 received signal of antenna array,
Noise signal is filtered out by filter, filtering signal is mixed by frequency mixer and generates frequency microwave signal, and frequency synthesizer will be penetrated
The direct current signal that frequency microwave signal is converted into is sent into ADC by frequency mixer, converts analog signals into digital signal.It is received logical
Treated in road 8, and signal passes to that digital processing unit 10 carries out digital processing, and processing is electrically charged the charge request signal of equipment, and
The size of the power according to needed for being electrically charged equipment controls the radiant power of intelligent multi-beam tracking antenna 1, outputs signals to transmitting
Channel 9.
Transmission channel 9 includes: the sequentially connected digital-to-analogue conversion DAC of multichannel, frequency mixer, filter, amplifier and simultaneously
Frequency synthesizer of the row between multichannel frequency mixer, transmission channel 9 be in Multibeam synthesis algoritic module and antenna array 7 it
Between, gone out by 7 Net long wave radiation of antenna array and be directed at the microwave beam for being electrically charged equipment, the function of transmission channel 9 is receiving channel 8
Inverse process.
Refering to Fig. 3.The shown wireless charging receiver being electrically charged in equipment includes two parts, and a part is by transmitting antenna
11 and charge request signal projector 12 constitute, another part part is made of receiving antenna 13 and rectifier 14, wherein rectification
The DC energy that device generates will be used for battery charging or directly power supply.When charging is required, be electrically charged equipment receive it is chargeable
After signal, wireless charging receiver issues charge request signal by transmitting antenna 11；The intelligent multi-beam tracking reception of antenna 1 is filled
Electric request signal, is verified, and received channel 8 is passed to the wave in digital processing unit 10 by the charge request signal received
Up to direction estimation DOA locating module, start search charge request signal location outward, to determine the position for being electrically charged equipment, and
Periodically the charge request signal for being electrically charged equipment is positioned and tracked；The charging signals transmitter 2 of transmitting terminal is with arteries and veins
The form of punching continuously generates chargeable signal, and is sent in chargeable range by charging signals transmitting antenna 3；Wireless charging
After receiver receives chargeable signal by transmitting antenna 11；The microwave energy of irradiation on it is intercepted and captured by receiving antenna 13
Amount, and by the Microwave Power Transmission intercepted and captured to rectifier 14, rectifier 14 converts microwave energy into DC energy to electricity
Pond charging or directly power supply.
During the charging process, it is electrically charged equipment and continuously transmits charge request signal in the form of the pulse period is T1, intelligence
Multi-beam tracks antenna 1 to be not less than the cycle T 2 of T1, and periodically tracking is electrically charged the position of equipment charge request signal, when having
Multiple mobile devices enter chargeable range, will position and track the position of all mobile devices, by Multibeam synthesis algorithm,
It generates and is directed at all multi-beam directional diagrams for being electrically charged equipment, to realize the charging to multiple mobile devices simultaneously.
The above is present pre-ferred embodiments, it has to be noted that above-described embodiment is that the present invention will be described,
However the present invention is not limited thereto, and those skilled in the art can design when being detached from scope of the appended claims
Alternative embodiment out.For those skilled in the art, the case where not departing from spirit and substance of the present invention
Under, various changes and modifications can be made therein, these variations and modifications are also considered as protection scope of the present invention.
Claims (10)
1. a kind of wireless charging microwave power Transmission system, comprising: setting is electrically charged the intelligence of equipment in transmitting terminal, positioning, tracking
Energy multi-beam tracking antenna (1) has the charging signals transmitter (2) of charging signals transmitting antenna (3), it is characterised in that: fill
Electrical signal emitter (2) is in the form of a pulse, multiple into chargeable radiation areas by charging signals transmitting antenna (3)
It is electrically charged equipment and continuously emits microwave wireless charging signals；It is electrically charged equipment and issues charge request signal, intelligent multi-beam tracking
Antenna (1) is periodically positioned and is tracked to charge request signal, and search is electrically charged the charge request signal location of equipment,
And according to determining charge request signal location, digital processing unit (10) is based on Multibeam synthesis algorithm, calculates logical by transmitting
The amplitude and phase needed at each antenna element port in road (9), so that the microwave beam generated is aligned in chargeable region
It is electrically charged equipment, equipment is electrically charged and microwave is received by wireless charging receiver and generates direct current.
2. wireless charging microwave power Transmission system as described in claim 1, it is characterised in that: intelligent multi-beam tracks antenna
(1) the front form structured the formation using multiple feeds, and multiple feeds select 5G network frequency range as working frequency, transmitting terminal charging
Signal projector (2) is by transmitting antenna (3) in the chargeable signal of chargeable area radiation；The wireless charging receiver of receiving end
After receiving signal, charge request signal will be issued by transmitting antenna (11), antenna array (7) receives the charge request of receiving end
After signal, digital processing unit (10) are passed to by receiving channel (8), establish communication link, and constantly update positioning and be electrically charged
The position of equipment.
3. wireless charging microwave power Transmission system as described in claim 1, it is characterised in that: digital processing unit (10) packet
It includes: Mutual coupling DOA locating module, Direct Digital Synthesis-DDS and Multibeam synthesis algoritic module, Mutual coupling
DOA locating module is based on DOA direction of arrival information and carries out Wave beam forming, and positioning is electrically charged equipment position, and DDS generates base band
Signal, Multibeam synthesis algoritic module calculate the optimal amplitude and phase of each antenna element, and issue control signal, finally make each
Optimal amplitude and phase are generated at a antenna element port, realize digital beam froming.
4. wireless charging microwave power Transmission system as described in claim 1, it is characterised in that: multi-beam intelligent-tracking circuit
Receiving channel (8) and transmission channel (9) including connecting antenna array (7) Yu digital processing unit (10) side by side.
5. wireless charging microwave power Transmission system as claimed in claim 4, it is characterised in that: receiving channel (8) includes: more
Frequency between the sequentially connected amplifier in road, filter, frequency mixer, analog-digital converter ADC and parallel duplex frequency mixer
Synthesizer, and the Mutual coupling DOA locating module of connection is held by multi-channel analog digital quantizer ADC altogether, wherein it is more
Road amplifier amplifies antenna array (7) received signal, filters out noise signal by filter, filtering signal passes through mixed
The mixing of frequency device generates frequency microwave signal, and frequency synthesizer send the direct current signal that frequency microwave signal is converted by frequency mixer
Enter ADC, convert analog signals into digital signal, treated that signal passes to digital processing unit (10) for received channel (8)
Digital processing is carried out, processing is electrically charged the charge request signal of equipment, and the size of the power according to needed for being electrically charged equipment, control
The radiant power of intelligent multi-beam tracking antenna (1), outputs signals to transmission channel (9).
6. wireless charging microwave power Transmission system as described in claim 1, it is characterised in that: transmission channel (9) includes: more
The sequentially connected digital-to-analogue conversion DAC in road, frequency mixer, filter, amplifier and the frequency between multichannel frequency mixer parallel
Synthesizer, transmission channel (9) are between Multibeam synthesis algoritic module and antenna array (7), effective by antenna array (7)
The microwave beam that alignment is electrically charged equipment is given off, and the function of transmission channel (9) is the inverse process of receiving channel (8).
7. wireless charging microwave power Transmission system as described in claim 1, it is characterised in that: wireless charging receiver includes
Two parts, a part are made of transmitting antenna (11) and charge request signal projector (12), and another part part is by receiving
Antenna (13) and rectifier (14) are constituted, wherein the DC energy that rectifier generates will be used for battery charging or directly power supply.
8. wireless charging microwave power Transmission system as described in claim 1, it is characterised in that: when charging is required, filled
Electric equipment will issue charge request letter by the transmitting antenna (11) in wireless charging receiver after receiving chargeable signal
Number；Intelligent multi-beam tracking antenna (1) receives charge request signal, is verified, the charge request signal received will be through connecing
It receives channel (8) and passes to the Mutual coupling DOA locating module in digital processing unit (10), start search charge request outward
Signal location to determine the position for being electrically charged equipment, and periodically positions the charge request signal for being electrically charged equipment
And tracking.
9. wireless charging microwave power Transmission system as described in claim 1, it is characterised in that: wireless charging signal enters can
Behind charged area, transmitting antenna (11) receives chargeable signal；Wireless charging receiver is intercepted and captured by receiving antenna (13) shines
Penetrate microwave energy on it, and by the Microwave Power Transmission intercepted and captured to rectifier (14), rectifier (14) is by microwave energy
Amount is converted to DC energy and charges the battery or directly power.
10. wireless charging microwave power Transmission system as described in claim 1, it is characterised in that: during the charging process, filled
Electric equipment continuously transmits charge request signal in the form of the pulse period is T1, and intelligent multi-beam tracking antenna (1) is to be not less than
The position that the cycle T 2 of T1, periodically tracking are electrically charged equipment charge request signal, it is chargeable when there is multiple mobile devices to enter
Range will position and track the position of all mobile devices, and by Multibeam synthesis algorithm, generation alignment is all to be electrically charged equipment
Multi-beam directional diagram, to realize charging to multiple mobile devices simultaneously.
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112152287A (en) * | 2020-09-10 | 2020-12-29 | 军事科学院系统工程研究院军事新能源技术研究所 | Remote charging method, device and system |
| CN112165185A (en) * | 2020-09-22 | 2021-01-01 | 中国运载火箭技术研究院 | In-situ wireless energy supplementing system and method for wireless sensor network node of aircraft |
| CN113162181A (en) * | 2021-04-29 | 2021-07-23 | 四川虹美智能科技有限公司 | Wireless charging method and system, receiving device and charging device |
| CN113257046A (en) * | 2021-04-07 | 2021-08-13 | 顺德职业技术学院 | Power supply base for teaching equipment |
| WO2022057320A1 (en) * | 2020-09-17 | 2022-03-24 | 华为数字能源技术有限公司 | Wireless charging method and wireless charging system |
| WO2022067475A1 (en) * | 2020-09-29 | 2022-04-07 | 华为数字能源技术有限公司 | Wireless power supply apparatus and wireless power supply terminal |
| CN115021428A (en) * | 2022-07-08 | 2022-09-06 | 清华大学 | System and method for realizing wireless charging and mobile equipment |
| CN115102306A (en) * | 2022-07-08 | 2022-09-23 | 清华大学 | Wireless charging system and mobile device |
| WO2023134652A1 (en) * | 2022-01-17 | 2023-07-20 | 维沃移动通信有限公司 | Wireless charging method and apparatus, and electronic device |
| CN117977835A (en) * | 2024-04-01 | 2024-05-03 | 广州国曜科技有限公司 | Microwave wireless power transmission system with positioning function |
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| CN113257046A (en) * | 2021-04-07 | 2021-08-13 | 顺德职业技术学院 | Power supply base for teaching equipment |
| CN113162181A (en) * | 2021-04-29 | 2021-07-23 | 四川虹美智能科技有限公司 | Wireless charging method and system, receiving device and charging device |
| WO2023134652A1 (en) * | 2022-01-17 | 2023-07-20 | 维沃移动通信有限公司 | Wireless charging method and apparatus, and electronic device |
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