CN107302269A - A kind of Energy harvesting methods and its system - Google Patents
A kind of Energy harvesting methods and its system Download PDFInfo
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- CN107302269A CN107302269A CN201710582933.XA CN201710582933A CN107302269A CN 107302269 A CN107302269 A CN 107302269A CN 201710582933 A CN201710582933 A CN 201710582933A CN 107302269 A CN107302269 A CN 107302269A
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- high frequency
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Classifications
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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
- H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
- H01Q1/248—Supports; Mounting means by structural association with other equipment or articles with receiving set provided with an AC/DC converting device, e.g. rectennas
-
- 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
- H02J50/40—Circuit arrangements or systems for wireless supply or distribution of electric power using two or more transmitting or receiving devices
-
- 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
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/007—Regulation of charging or discharging current or voltage
-
- 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
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/345—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering using capacitors as storage or buffering devices
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The present invention relates to mobile charging technical field, more particularly to a kind of Energy harvesting methods and its system, for improving efficiency of energy collection, in the system, the radiofrequency signal that the baseband signal of mobile terminal where being received by aerial coil is produced, and the radiofrequency signal being collected into is converted into by high frequency oscillating current by electromagnetic induction by aerial coil, rectification processing to high frequency oscillating current and stored energy operation are completed by detection energy-storage module, when voltage monitoring and charging control circuit monitor that the magnitude of voltage of tank voltage meets specified threshold, tank voltage is adjusted to the operating voltage of load circuit by control power transfer module, so, as long as mobile terminal normal work, the radiofrequency signal that can be just produced by collection terminal itself realizes that energy is changed, and then provide electric energy for terminal, it is avoided that the problem of existing energy collecting system is because that can not collect the electromagnetic wave scattered in sufficient space, substantially increase efficiency of energy collection.
Description
Technical field
The present invention relates to mobile charging technical field, more particularly to a kind of Energy harvesting methods and its system.
Background technology
With the development of Internet technology, the use function of mobile terminal is more and more, thereupon, the work(of mobile terminal
Consumption also more and more higher, and the mobile terminal battery that places one's entire reliance upon is powered at present, therefore, how effectively to be supplied for mobile terminal
Under electricity is the study hotspot in current mobile charging field, prior art, there is following several development trends.
First, increase battery deposits electricity, and shorten the charging interval.
Second, continuing to optimize mobile terminal management system, power saving purpose is reached by efficiently managing power consumption.
Third, by energy collecting system, the energy that mobile terminal dissipates consumption is carried out reclaiming storage and is used.
For the third development trend, in the prior art, there is a kind of energy collecting system, received by radio frequency reception antenna
Collect dimensional energy (the various electromagnetic waves produced by the other equipment e.g., scattered in environment), and by the dimensional energy being collected into
DC energy is converted to, is stored in CSET, however, the dimensional energy captured using aforesaid way is limited, signal
Power grade is relatively low, accordingly, it is capable to which it is not high to measure collection efficiency.
In view of this, there is provided a kind of new energy collecting system in the embodiment of the present invention, to overcome drawbacks described above.
The content of the invention
The embodiment of the present invention provides a kind of Energy harvesting methods and its system, to solve in existing energy collecting system
There is the problem of efficiency of energy collection is relatively low.
Concrete technical scheme provided in an embodiment of the present invention is as follows：
A kind of energy collecting system, including aerial coil, detection energy-storage module, voltage monitoring and charge control module, electricity
Source modular converter, wherein,
The aerial coil, is connected with the detection energy-storage module, the baseband circuit production of mobile terminal where for receiving
Raw radiofrequency signal, and the radiofrequency signal received is converted into by analog signal by electromagnetic induction, the analog signal is height
Frequency oscillating current；
The detection energy-storage module, is connected with the voltage monitoring and charge control module, for receiving the antenna line
The high frequency oscillating current of output is enclosed, and to carrying out energy storage after high frequency oscillating current rectification processing；
The voltage monitoring and charge control module, are connected with the power transfer module, for monitoring tank voltage, really
When determining magnitude of voltage and reaching specified threshold, the power transfer module is controlled to carry out voltage conversion to the voltage；
The power transfer module, for adjusting tank voltage under the control of the voltage monitoring and charge control module
The whole operating voltage for load circuit.
Optionally, the system also includes matching module, wherein,
The matching module, input is connected with the aerial coil, and output end is connected with the detection energy-storage module, uses
In the high frequency oscillating current of the reception aerial coil output, and impedance matching is carried out to the high frequency oscillating current, and it is defeated
The high frequency oscillating current gone out after matching.
Optionally, the aerial coil at least includes first antenna coil and the second aerial coil, and the matching module is extremely
Include the first match circuit and the second match circuit less, the baseband circuit at least includes display screen drive integrated circult and switch
Power circuit, wherein,
The first antenna coil, is connected with first match circuit, the display screen of mobile terminal where for receiving
The first radiofrequency signal that drive integrated circult is produced, and the first radiofrequency signal received is converted into first by electromagnetic induction
Analog signal, first analog signal is the first high frequency oscillating current；
Second aerial coil, is connected with second match circuit, the switch electricity of mobile terminal where for receiving
The second radiofrequency signal that source circuit is produced, and the second radiofrequency signal received is converted into by the second simulation letter by electromagnetic induction
Number, second analog signal is the second high frequency oscillating current.
Optionally, first match circuit, input is connected with the first antenna coil, output end and the detection
Energy-storage module is connected, the first high frequency oscillating current specifically for receiving the first antenna coil output, and to described first
High frequency oscillating current carries out the first high frequency oscillating current after impedance matching, and output matching.
Optionally, second match circuit, input is connected with second aerial coil, output end and the detection
Energy-storage module is connected, the second high frequency oscillating current specifically for receiving the second aerial coil output, and to described second
High frequency oscillating current carries out the second high frequency oscillating current after impedance matching, and output matching.
Optionally, the detection energy-storage module, at least including the first diode, the second diode and storage capacitor, wherein,
First diode, positive pole is connected with first match circuit, and negative pole is connected with the storage capacitor；
Second diode, positive pole is connected with second match circuit, and negative pole is connected with the storage capacitor；
The storage capacitor, one end is connected with first diode and second diode respectively, other end ground connection.
Optionally, the power transfer module is additionally operable to the battery to place mobile terminal using the operating voltage after adjustment
Charged.
A kind of Energy harvesting methods, including：
The radiofrequency signal that the baseband circuit of mobile terminal where receiving is produced, and by electromagnetic induction by the radiofrequency signal
Analog signal is converted to, wherein, the analog signal is high frequency oscillating current；
Energy storage is carried out after handling the high frequency oscillating current rectification；
Tank voltage is monitored, when determining that magnitude of voltage reaches specified threshold, tank voltage is adjusted to the work of load circuit
Voltage.
Optionally, after the radiofrequency signal being converted into analog signal by electromagnetic induction, to higher-order of oscillation electricity
Flow before energy storage is carried out after rectification processing, further comprise：
Impedance matching, the high frequency oscillating current after being matched are carried out to the high frequency oscillating current.
Optionally, tank voltage is adjusted to after the operating voltage of load circuit, further comprised：
The battery of place mobile terminal is charged using the operating voltage after adjustment.
In the embodiment of the present invention, the radiofrequency signal that the baseband signal of mobile terminal where being received by aerial coil is produced,
And the radiofrequency signal being collected into is converted into by high frequency oscillating current by electromagnetic induction by aerial coil, it is complete by detection energy-storage module
The rectification processing of paired high frequency oscillating current and stored energy operation, when voltage monitoring and charging control circuit monitor tank voltage
When magnitude of voltage meets specified threshold, tank voltage is adjusted to the operating voltage of load circuit by control power transfer module, so,
As long as mobile terminal normal work, the radiofrequency signal that can be just produced by collection terminal itself realizes that energy is changed, and then for eventually
End provides electric energy, is avoided that the problem of existing energy collecting system is because that can not collect the electromagnetic wave scattered in sufficient space, significantly
Improve efficiency of energy collection.
Brief description of the drawings
Fig. 1 is energy collecting system structural representation in the embodiment of the present invention；
Fig. 2 is Energy harvesting methods flow chart in the embodiment of the present invention；
Fig. 3 is aerial coil installation site exemplary plot in the embodiment of the present invention.
Embodiment
In order to exist in existing energy collecting system in the problem of efficiency of energy collection is relatively low, the embodiment of the present invention, carry
A kind of energy collecting system has been supplied, the radiofrequency signal that the baseband signal of mobile terminal where being received by aerial coil is produced, and
The radiofrequency signal being collected into is converted into by high frequency oscillating current by electromagnetic induction by aerial coil, then, by detection energy storage mould
Block carries out rectification processing to high frequency oscillating current, and the electric current after rectification is carried out into energy storage, and is controlled by voltage monitoring and charging
Module monitors tank voltage processed, when determining that the magnitude of voltage of tank voltage meets specified threshold, controls power transfer module by energy storage
Voltage is adjusted to the operating voltage for meeting load circuit works.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, is not whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
The solution of the present invention will be described in detail by specific embodiment below, certainly, the present invention be not limited to
Lower embodiment.
Mobile terminal (e.g., mobile phone) can produce a certain amount of electromagnetic wave in normal work by electromagnetic induction, and this phase
When a part of electromagnetic wave is unemployed, therefore, there is provided a kind of energy collecting system in the embodiment of the present invention, it can be received from
The electromagnetic wave that mobile terminal where body is sent, and the electromagnetic wave received is converted into electric energy energy, referring particularly to shown in Fig. 1,
The energy collecting system that the present embodiment is provided, including aerial coil 10, detection energy-storage module 11, voltage monitoring and charge control mould
Block 12, and power transfer module 13, wherein,
Aerial coil 10, is connected with detection energy-storage module 11, and the baseband circuit of mobile terminal is produced where for receiving
Radiofrequency signal, and the radiofrequency signal received is converted into by analog signal by electromagnetic induction, wherein, analog signal can be height
Frequency oscillating current；
Detection energy-storage module 11, with voltage monitoring and charge control module 12, the height exported for receiving antenna coil 10
Frequency oscillating current, and to carrying out energy storage after high frequency oscillating current rectification processing；
Voltage monitoring and charge control module 12, are connected with power transfer module 13, for monitoring tank voltage, it is determined that electric
When pressure value reaches specified threshold, control power transfer module 13 carries out voltage conversion to tank voltage；
Power transfer module 13, for being adjusted to tank voltage under the control of voltage monitoring and charge control module 12
The operating voltage of load circuit 15.
Wherein, tank voltage is adjusted to the operating voltage of load circuit 15 by power transfer module, refers to tank voltage
It is adjusted to that the voltage of the normal work of load circuit 15 can be met.
In the embodiment of the present invention, energy collecting system also includes matching module 14, wherein, the input of matching module 14 and day
Line coil 10 is connected, and output end is connected with detection energy-storage module 11, the high frequency oscillating current exported for receiving antenna coil, and
High frequency oscillating current after impedance matching, and output matching is carried out to high frequency oscillating current.
In the embodiment of the present invention, aerial coil 10 at least includes the aerial coil 102 of first antenna coil 101 and second,
At least include the first match circuit 141 and the second match circuit 142 with module 14, baseband circuit at least includes display screen and drives collection
Into circuit and switching power circuit, wherein,
First antenna coil 101, is connected with the first match circuit 141, and the display screen of mobile terminal drives where for receiving
The first radiofrequency signal that dynamic integrated circuit is produced, and the first radiofrequency signal received is converted into by the first mould by electromagnetic induction
Intend signal, wherein, the first analog signal is the first high frequency oscillating current；
Second aerial coil 102, is connected with the second match circuit 142, the Switching Power Supply of mobile terminal where for receiving
The second radiofrequency signal that circuit is produced, and the second radiofrequency signal received is converted into by the second simulation letter by electromagnetic induction
Number, wherein, the second analog signal is the second high frequency oscillating current.
In the embodiment of the present invention, the first match circuit 141, input is connected with first antenna coil 101, output end and inspection
Ripple energy-storage module 11 is connected, specifically for receiving the first high frequency oscillating current that first antenna coil 101 is exported, and high to first
Frequency oscillating current carries out the first high frequency oscillating current after impedance matching, and output matching.
In the embodiment of the present invention, the second match circuit 142, input is connected with the second aerial coil 102, output end and inspection
Ripple energy-storage module 11 is connected, the second high frequency oscillating current specifically for receiving the output of the second aerial coil 102, and high to second
Frequency oscillating current carries out the second high frequency oscillating current after impedance matching, and output matching.
In the embodiment of the present invention, detection energy-storage module 11 at least includes the first diode 111, the second diode 112 and storage
Energy electric capacity 113, wherein,
First diode 111, positive pole is connected with the first match circuit 141, and negative pole is connected with storage capacitor 113, specific to use
Rectification processing is carried out in the high frequency oscillating current after the matching exported to the first match circuit；
Second diode 112, positive pole is connected with the second match circuit 142, and negative pole is connected with storage capacitor 113, specific to use
Rectification processing is carried out in the high frequency oscillating current after the matching exported to the second match circuit；
Storage capacitor 113, one end is connected with the first diode 111 and the second diode 112 respectively, other end ground connection, tool
Body is used for the electric current after handling the rectification of the first diode 111 and carries out stored energy operation, and the rectification of the second diode 112 is handled
Electric current afterwards carries out stored energy operation.
In the embodiment of the present invention, power transfer module 13 is additionally operable to using the operating voltage after adjustment to place mobile terminal
Battery charged.
As shown in fig.2, being based in above-mentioned energy collecting system, the embodiment of the present invention, a kind of collection of energy side is also provided
Method, this method flow is as follows：
Step 200：The first of the display screen drive integrated circult generation of mobile terminal where first antenna coil is received is penetrated
Frequency signal, and the first radiofrequency signal received is converted into by the first analog signal, and the first mould of output by electromagnetic induction
Intend signal, and perform step 210.
Specifically, the first of first antenna coil (ANT1 as shown in Figure 1) reception display screen drive integrated circult generation penetrates
Frequency signal, and the first radiofrequency signal is converted into the first analog signal, and export above-mentioned first analog signal, the embodiment of the present invention
In, the first analog signal can be high frequency oscillating current.
Step 210：First match circuit receives the first analog signal, and carries out impedance matching to the first analog signal, with
And the first analog signal after output matching.
Specifically, the first match circuit is received after the first analog signal of first antenna coil output, to what is received
First analog signal carries out impedance matching, and the step is used to reduce the loss that the path zone of reflections comes, and can improve efficiency of energy collection.
Step 220：The second radiofrequency signal that the switching power circuit of mobile terminal where second aerial coil is received is produced,
And the second radiofrequency signal received is converted into by the second analog signal, and the second analog signal of output by electromagnetic induction,
And perform step 230.
Specifically, the second aerial coil (ANT2 as shown in Figure 1) receives the second radiofrequency signal that switching power circuit is produced,
And the second radiofrequency signal is converted into the second analog signal, and export in above-mentioned second analog signal, the embodiment of the present invention, second
Analog signal can be high frequency oscillating current.
Step 230：Second match circuit receives the second analog signal, and carries out impedance matching to the second analog signal, with
And the second analog signal after output matching.
Specifically, the second match circuit is received after the second analog signal of the second aerial coil output, to what is received
Second analog signal carries out impedance matching, and the step is used to reduce the loss that the path zone of reflections comes, and can improve efficiency of energy collection.
Step 240：Detection energy-storage module receives the high frequency oscillating current of first antenna coil and the output of the second aerial coil,
And carry out energy storage after handling high frequency oscillating current rectification.
Specifically, detection energy-storage module includes the first diode, the second diode and storage capacitor, the embodiment of the present invention
In, the first diode and the second diode can be Schottky diode, and storage capacitor can be super capacitor.
Further, the positive pole of the first diode receives the first analog signal after the matching of the first match circuit output
(the first high frequency oscillating current), to be deposited to the first high frequency oscillating current execution rectifying operation, and by the electric current obtained after rectification
Storage is in storage capacitor.
Similarly, the positive pole of the second diode receives the second analog signal (second after the matching of the second match circuit output
High frequency oscillating current), to be stored in storage to the second high frequency oscillating current execution rectifying operation, and by the electric current obtained after rectification
In energy electric capacity.
Step 250：Voltage monitoring and charge control module monitor the voltage of storage capacitor in real time, determine that magnitude of voltage reaches finger
When determining threshold value, control power transfer module adjusts the voltage to meeting load circuit normal work.
Specifically, voltage monitoring and charge control module monitor the voltage of storage capacitor in real time, once monitor energy storage electricity
The magnitude of voltage of appearance meets specified threshold, then controls power transfer module that the voltage is adjusted to the operating voltage of load circuit, and
The battery of place mobile terminal is charged using the operating voltage after adjustment.
In the embodiment of the present invention, power-switching circuit can be DC-DC booster circuit, and why not use energy storage directly
The voltage of electric capacity charges to the battery of mobile terminal, is because the amount for the voltage (voltage of storage capacitor) being directly collected into
Level very little, can not generally meet the work requirements of load circuit, accordingly, it would be desirable to by DC-DC booster circuit to storage capacitor
Voltage performs boost operations, and boosting index is the operating voltage of load circuit, and using the voltage after boosting to mobile terminal
Battery carries out charging operations, can meet the work requirements of load circuit.
For example, it is assumed that the operating voltage of load circuit is 3.3V, specified threshold is 1V, once monitor the electricity of storage capacitor
When pressure reaches 1V, then using DC-DC booster circuit, the voltage of storage capacitor is adjusted to 3.3V, can be to mobile terminal
Battery is charged, so as to the normal work of holding load circuit.
So, as long as mobile terminal is in normally by use state (display screen is in bright screen state), the present embodiment is provided
Energy collecting system just can lasting collection energy, and the battery of mobile terminal is charged using the energy being collected into,
Power demands can be met, efficiency of energy collection can not only be improved, but also reduce the energy expenditure of battery, so as to extend
The standby time of mobile terminal.
In the embodiment of the present invention, the installation site of first antenna coil and the second aerial coil needs reasonable selection, makes it
There can be optimal collection efficiency.
For example, by taking mobile phone as an example, as shown in fig.3, wherein, 300 be first antenna loop A NT1 feed placement, 310
For the second aerial coil ANT2 feed placement, 320 be the second aerial coil ANT2, and 330 be DC-DC booster circuit, and 340 be the
One aerial coil ANT1,350 be mobile phone screen FPC and display screen drive integrated circult, and 360 be mobile phone screen, and 370 be mainboard,
380 be hand set machine shell.
In summary, in the embodiment of the present invention, the baseband signal of mobile terminal is produced where being received by aerial coil
Radiofrequency signal, and the radiofrequency signal being collected into is converted into by high frequency oscillating current by electromagnetic induction by aerial coil, by detection
Energy-storage module completes rectification processing to high frequency oscillating current and stored energy operation, when voltage monitoring and charging control circuit are monitored
When the magnitude of voltage of tank voltage meets specified threshold, tank voltage is adjusted to the work of load circuit by control power transfer module
Voltage, so, as long as mobile terminal normal work, the radiofrequency signal that can be just produced by collection terminal itself realizes that energy turns
Change, and then electric energy is provided for terminal, be avoided that existing energy collecting system because the electromagnetic wave scattered in sufficient space can not be collected
The problem of, substantially increase efficiency of energy collection.
It should be understood by those skilled in the art that, embodiments of the invention can be provided as method, system or computer program
Product.Therefore, the present invention can be using the reality in terms of complete hardware embodiment, complete software embodiment or combination software and hardware
Apply the form of example.Moreover, the present invention can be used in one or more computers for wherein including computer usable program code
The computer program production that usable storage medium is implemented on (including but is not limited to magnetic disk storage, CD-ROM, optical memory etc.)
The form of product.
The present invention is the flow with reference to method according to embodiments of the present invention, equipment (system) and computer program product
Figure and/or block diagram are described.It should be understood that can be by every first-class in computer program instructions implementation process figure and/or block diagram
Journey and/or the flow in square frame and flow chart and/or block diagram and/or the combination of square frame.These computer programs can be provided
The processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing devices is instructed to produce
A raw machine so that produced by the instruction of computer or the computing device of other programmable data processing devices for real
The device for the function of being specified in present one flow of flow chart or one square frame of multiple flows and/or block diagram or multiple square frames.
These computer program instructions, which may be alternatively stored in, can guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works so that the instruction being stored in the computer-readable memory, which is produced, to be included referring to
Make the manufacture of device, the command device realize in one flow of flow chart or multiple flows and/or one square frame of block diagram or
The function of being specified in multiple square frames.
These computer program instructions can be also loaded into computer or other programmable data processing devices so that in meter
Series of operation steps is performed on calculation machine or other programmable devices to produce computer implemented processing, thus in computer or
The instruction performed on other programmable devices is provided for realizing in one flow of flow chart or multiple flows and/or block diagram one
The step of function of being specified in individual square frame or multiple square frames.
, but those skilled in the art once know basic creation although preferred embodiments of the present invention have been described
Property concept, then can make other change and modification to these embodiments.So, appended claims are intended to be construed to include excellent
Select embodiment and fall into having altered and changing for the scope of the invention.
Obviously, those skilled in the art can carry out various changes and modification without departing from this hair to the embodiment of the present invention
The spirit and scope of bright embodiment.So, if these modifications and variations of the embodiment of the present invention belong to the claims in the present invention
And its within the scope of equivalent technologies, then the present invention is also intended to comprising including these changes and modification.
Claims (10)
1. a kind of energy collecting system, it is characterised in that including aerial coil, detection energy-storage module, voltage monitoring and charging control
Molding block, power transfer module, wherein,
The aerial coil, is connected with the detection energy-storage module, and the baseband circuit of mobile terminal is produced where for receiving
Radiofrequency signal, and the radiofrequency signal received is converted into by analog signal by electromagnetic induction, the analog signal is high frequency vibrating
Swing electric current；
The detection energy-storage module, is connected with the voltage monitoring and charge control module, defeated for receiving the aerial coil
The high frequency oscillating current gone out, and to carrying out energy storage after high frequency oscillating current rectification processing；
The voltage monitoring and charge control module, are connected with the power transfer module, for monitoring tank voltage, it is determined that electric
When pressure value reaches specified threshold, the power transfer module is controlled to carry out voltage conversion to the voltage；
The power transfer module, for being adjusted to tank voltage under the control of the voltage monitoring and charge control module
The operating voltage of load circuit.
2. the system as claimed in claim 1, it is characterised in that the system also includes matching module, wherein,
The matching module, input is connected with the aerial coil, and output end is connected with the detection energy-storage module, for connecing
The high frequency oscillating current of the aerial coil output is received, and impedance matching, and output are carried out to the high frequency oscillating current
High frequency oscillating current after matching somebody with somebody.
3. system as claimed in claim 1 or 2, it is characterised in that the aerial coil at least include first antenna coil and
Second aerial coil, the matching module at least includes the first match circuit and the second match circuit, and the baseband circuit is at least
Including display screen drive integrated circult and switching power circuit, wherein,
The first antenna coil, is connected with first match circuit, the display screen driving of mobile terminal where for receiving
The first radiofrequency signal that integrated circuit is produced, and the first radiofrequency signal received is converted into by the first simulation by electromagnetic induction
Signal, first analog signal is the first high frequency oscillating current；
Second aerial coil, is connected with second match circuit, the switch power supply of mobile terminal where for receiving
The second radiofrequency signal that road is produced, and the second radiofrequency signal received is converted into by the second analog signal by electromagnetic induction,
Second analog signal is the second high frequency oscillating current.
4. system as claimed in claim 3, it is characterised in that first match circuit, input and the first antenna
Coil is connected, and output end is connected with the detection energy-storage module, and first specifically for receiving the first antenna coil output
High frequency oscillating current, and the first high frequency vibrating after impedance matching, and output matching is carried out to first high frequency oscillating current
Swing electric current.
5. system as claimed in claim 3, it is characterised in that second match circuit, input and second antenna
Coil is connected, and output end is connected with the detection energy-storage module, and second specifically for receiving the second aerial coil output
High frequency oscillating current, and the second high frequency vibrating after impedance matching, and output matching is carried out to second high frequency oscillating current
Swing electric current.
6. the system as described in claim 4 or 5, it is characterised in that the detection energy-storage module, at least including the one or two pole
Pipe, the second diode and storage capacitor, wherein,
First diode, positive pole is connected with first match circuit, and negative pole is connected with the storage capacitor；
Second diode, positive pole is connected with second match circuit, and negative pole is connected with the storage capacitor；
The storage capacitor, one end is connected with first diode and second diode respectively, other end ground connection.
7. the system as claimed in claim 1, it is characterised in that the power transfer module is additionally operable to using the work after adjustment
Voltage charges to the battery of place mobile terminal.
8. a kind of Energy harvesting methods, it is characterised in that including：
The radiofrequency signal that the baseband circuit of mobile terminal where receiving is produced, and changed the radiofrequency signal by electromagnetic induction
For analog signal, wherein, the analog signal is high frequency oscillating current；
Energy storage is carried out after handling the high frequency oscillating current rectification；
Tank voltage is monitored, when determining that magnitude of voltage reaches specified threshold, tank voltage is adjusted to the operating voltage of load circuit.
9. method as claimed in claim 8, it is characterised in that the radiofrequency signal is converted to by simulation letter by electromagnetic induction
After number, carry out before energy storage, further comprise after handling the high frequency oscillating current rectification：
Impedance matching, the high frequency oscillating current after being matched are carried out to the high frequency oscillating current.
10. method as claimed in claim 8, it is characterised in that by tank voltage be adjusted to load circuit operating voltage it
Afterwards, further comprise：
The battery of place mobile terminal is charged using the operating voltage after adjustment.
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108199428A (en) * | 2017-12-29 | 2018-06-22 | 徐州德坤电气科技有限公司 | A kind of control method of wireless charging device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110770755A (en) * | 2017-06-09 | 2020-02-07 | 交互数字Ce专利控股公司 | Piezoelectric Radio Frequency Identification (RFID) antenna |
| CN108199428A (en) * | 2017-12-29 | 2018-06-22 | 徐州德坤电气科技有限公司 | A kind of control method of wireless charging device |
| CN108233554A (en) * | 2017-12-29 | 2018-06-29 | 徐州德坤电气科技有限公司 | A kind of wireless charging device |
| CN108683273A (en) * | 2018-06-04 | 2018-10-19 | 武汉中岩科技股份有限公司 | A kind of electromagnetic wave conversion power supply module |
| CN110718968A (en) * | 2018-07-12 | 2020-01-21 | 鑫东龙安防股份有限公司 | Wireless energy acquisition device and power supply control method thereof |
| CN109217499A (en) * | 2018-10-09 | 2019-01-15 | 成都月洋科技有限公司 | Spatial electromagnetic energy collecting system and method based on AM/FM and TV signal |
| CN109546761A (en) * | 2018-11-01 | 2019-03-29 | 青岛海信移动通信技术股份有限公司 | A kind of energy collection circuit and terminal |
| CN112491166A (en) * | 2019-09-12 | 2021-03-12 | 浙江悦和科技有限公司 | Wireless radio frequency power supply system and power supply method thereof |
| CN111147109A (en) * | 2019-11-28 | 2020-05-12 | 中国地质大学（武汉） | Wireless energy-carrying communication system with scattering communication and voltage monitoring functions |
| CN113221387A (en) * | 2021-06-10 | 2021-08-06 | 燕山大学 | Maximum energy output control method and system for wave energy conversion device |
| CN113221387B (en) * | 2021-06-10 | 2022-07-12 | 燕山大学 | Maximum energy output control method and system for wave energy conversion device |
| CN114258174A (en) * | 2021-11-09 | 2022-03-29 | 青岛超越智能信息技术中心 | Wireless charging LED lamp based on environment radio frequency signal |
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