CN204992796U - Radio magnetic wave energy collection system based on many emission unit - Google Patents
Radio magnetic wave energy collection system based on many emission unit Download PDFInfo
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- CN204992796U CN204992796U CN201520714860.1U CN201520714860U CN204992796U CN 204992796 U CN204992796 U CN 204992796U CN 201520714860 U CN201520714860 U CN 201520714860U CN 204992796 U CN204992796 U CN 204992796U
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- microprocessor
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Abstract
The utility model discloses a radio magnetic wave energy collection system based on many emission unit, including transmitting terminal and receiving terminal, the receiving terminal is including the energy receiving and dispatching antenna, LC matching circuit, voltage doubler rectifier circuit and the energy storage battery that connect gradually, the receiving terminal still includes receiving terminal microprocessor, receiving terminal microprocessor receives and dispatches antenna, LC matching circuit, voltage doubler rectifier circuit and energy storage battery interconnect with the energy respectively, the transmitting terminal includes a plurality of emission unit and a plurality of transmitting terminal microprocessor, and every emission unit is rather than the transmitting terminal microprocessor interconnect who corresponds. The utility model discloses an antenna communication and receiving and dispatching energy, simple structure can be used under current equipment condition to the energy power maxmizing that makes the receiving terminal gather.
Description
Technical field
The utility model belongs to Internet of Things field, is specifically related to a kind of radio magnetic wave electricity energy harvester based on multi-emitting unit.
Background technology
The appearance of wireless energy acquisition technique, makes the wireless power of Internet of things node come true.The wireless power to Internet of things node is realized by wireless energy acquisition technique, avoid laying power line, or change the trouble of battery, Internet of things node is laid convenient, layout density is larger, applicable scene is more, and working life is longer, and considerably increases fail safe and the convenience of use.
At present, relate to wireless charging technology and mainly contain induction, magnetic field resonance type and radio waves.
Induction employing a pair coil is used for transmitting and received current, primary coil is by the alternating current of certain frequency, in secondary coil, certain electric current is produced by electromagnetic induction principle, thus energy is transferred to receiving terminal from transmission ends, belong to inductively in-plant, charging distance is very short.
Magnetic field resonance type is by energy dispensing device, form with energy acceptance device, two devices are resonated in certain frequency, carry out energy exchange to each other, but exchange Distance geometry coil dimension aspect and have very high requirement, once the distance changed between transmitting and receiving node or change coil dimension, received power will sharply decline, the limitation of application existence self.
Wireless electromagnetic waves, mainly adopts radio-frequency technique, is made up of microwave launcher and microwave receiving device, similar wireless communication technology, not only can carry out information transmit-receive by antenna, can also carry out energy transmitting-receiving.Wireless electromagnetic waves can realize longer-distance wireless charging, but compare induction and magnetic field resonance type, due to electromagnetic loss, the energy that receiving node gathers is faint, and in energy acceptance process, also there is the factors such as electric leakage, receiving efficiency be low, range of application is very limited.
Utility model content
In order to overcome the shortcoming of existing radio magnetic wave formula energy acquisition technology existence with not enough, the utility model provides a kind of radio magnetic wave electricity energy harvester based on multi-emitting unit, the power receiving wireless energy can be increased to greatest extent under the prerequisite not increasing total transmitting power, realize the charging of longer-distance wireless energy.
The utility model adopts following technical scheme:
A kind of radio magnetic wave electricity energy harvester based on multi-emitting unit, comprise transmitting terminal and receiving terminal, described receiving terminal comprises the energy dual-mode antenna connected successively, LC match circuit, voltage doubling rectifing circuit and energy-storage battery, described receiving terminal also comprise for give each transmitter unit allocate communications time slot, received training sequence also calculates the receiving terminal microprocessor of each transmitter unit weights, described receiving terminal microprocessor respectively with energy dual-mode antenna, LC match circuit, voltage doubling rectifing circuit and energy-storage battery are interconnected, described transmitting terminal comprises multiple transmitter unit and multiple transmitting terminal microprocessor for being adjusted transmitter unit initial condition by receiving terminal feedack, the transmitting terminal microprocessor that each transmitter unit is corresponding with it is interconnected.
Described transmitter unit is certain the antenna transmission unit independently in single antenna radio-frequency (RF) transmitter or multiple antennas radio-frequency (RF) transmitter.
Described receiving terminal microprocessor and transmitting terminal microprocessor are single-chip microcomputer or digital signal processor.
An acquisition method for radio magnetic wave electricity energy harvester, comprises preparatory stage and energy transmitting-receiving stage, is specially:
Preparatory stage comprises:
Each transmitter unit allocate communications time slot t given by S1 receiving terminal microprocessor
1... t
d;
S2 transmitter unit in communication time slot, to receiving terminal transmitting training sequence X
1... X
d;
S3 receiving terminal microprocessor is undergone training sequence, obtains the channel fading of each transmitter unit to receiving terminal through computing, and according to calculating the weights ω of each channel
1... ω
d, and feed back to each transmitter unit;
The microprocessor of each transmitter unit of S4 is according to the value information of feedback, and adjust the initial condition of emitting electromagnetic wave, described initial condition comprises phase place and amplitude; Method is the value information that feeds back according to transmitting terminal of the microprocessor of each transmitter unit to calculate or the mode of inquiry look-up table obtains the amplitude on I road and Q road, superpose again after being multiplied with two-way quadrature carrier respectively after I road is changed by D/A with the amplitude on Q road, thus the object of the initial condition such as the phase deviation of realization adjustment emitting electromagnetic wave and amplitude, described initial condition comprises phase place and amplitude.
The phase place that each transmitter unit of S5 calculates with S4 and amplitude emitting electromagnetic wave, now on the energy theory that receives of receiving terminal, power is maximum.
At set intervals, receiving terminal finely tunes the initial condition of each transmitter unit emitting electromagnetic wave, and in trim process, received power does not increase, then judge that the power of receiving terminal wireless energy has reached maximum.
When transmitting terminal and receiving terminal relative position change, or exceed certain threshold value apart from the last weight computing time, or when disturbing obvious, reenter weight computing.
Transmitter unit of the present utility model and receiving terminal all have microprocessor, the microprocessor of receiving terminal is by calculating and dispatching each radio-frequency transmissions end, become as a whole, and then realize each transmitter unit transmission training series in respective distribution time slot in particular time-slot, the value information that the microprocessor of transmitter unit is fed back by receiving terminal adjusts emitting electromagnetic wave initial condition in the mode of calculating or table lookup, described initial condition comprises power and phase place, when the electromagnetic wave that each radio-frequency transmissions end is launched arrives receiving terminal, the gross power that receiving terminal receives when total emission power is certain is maximum, namely energy collecting efficiency is best.
The beneficial effects of the utility model:
The utility model is by antenna communication and transmitting-receiving energy, and the energy work rate that receiving terminal is collected reaches maximum, and under can being applied in existing appointed condition, structure is simple.
Accompanying drawing explanation
Fig. 1 is apparatus structure block diagram of the present utility model;
Fig. 2 is method workflow diagram of the present utility model.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, but execution mode of the present utility model is not limited thereto.
Embodiment
As shown in Figure 1, the method and apparatus that a kind of wireless energy based on multi-emitting unit gathers, its device section comprises transmitting terminal and receiving terminal, and transmitting terminal is by RF-wise emitting electromagnetic wave, and receiving terminal receives electromagnetic wave energy by antenna, and stores.
Described receiving terminal comprises the energy dual-mode antenna, LC match circuit, voltage doubling rectifing circuit and the energy-storage battery that connect successively, described receiving terminal also comprises microprocessor, be interconnected with energy dual-mode antenna, LC match circuit, voltage doubling rectifing circuit and energy-storage battery respectively, described transmitting terminal comprises multiple transmitter unit and multiple transmitting terminal microprocessor, described transmitter unit and transmitting terminal microprocessor are one-to-one relationship, and described transmitter unit and transmitting terminal microprocessor are interconnected.
In the present embodiment, transmitting terminal comprises transmitter unit 1, transmitter unit 2... transmitter unit d, and with its transmitting terminal microprocessor 1, transmitting terminal microprocessor 2... transmitting terminal microprocessor d one to one.
Described transmitter unit can be independently single antenna radio-frequency (RF) transmitter, also can be multiple antenna transmission unit of multiple antennas radio-frequency (RF) transmitter.Transmitter unit is that producer manufactures in strict accordance with the secure transmission frequency range of national regulation.Receiving terminal and transmitting terminal microprocessor can be the single-chip microcomputer of low-power consumption class or digital signal processor (DSP), as the utility model can select the microcontroller of TI company MSP430 series, use under can being in low-power consumption mode, electromagnetic energy is fully stored.
As shown in Figure 2, the concrete acquisition method of this device is as follows, comprises two stages, is preparatory stage and energy transmitting-receiving stage respectively;
The described preparatory stage is specially: system distributes a communication time slot first to each transmitter unit, is respectively t
1... t
d, the general principle of similar time division multiplexing (TDM), object is to make different transmitter unit, can transmit training sequence X in different time-gap to receiving terminal
1... X
d, training sequence is transmitting-receiving two-end sequence in common knowledge, and the effect of training sequence is to obtain synchronous, phase deviation correction accurately and channel estimating, make transmitting-receiving two-end be in standby condition or energy reiving/transmitting state simultaneously.After receiving terminal received training sequence, carry out channel estimating by microprocessor and carry out calculating the phase deviation ω of each transmitter unit
1... ω
ddeng value information, each transmitter unit is fed back to by backward channel, the value information that the microprocessor of each transmitter unit feeds back according to transmitting terminal is to calculate or the mode of inquiry look-up table obtains the amplitude on I road and Q road, superpose again after being multiplied with two-way quadrature carrier respectively after I road is changed by D/A with the amplitude on Q road, thus the object of the initial condition such as the phase deviation of realization adjustment emitting electromagnetic wave and amplitude.
In the energy transmitting-receiving stage, the value information that transmitter unit feed back according to receiving terminal, adjusts the initial condition of electromagnetic radiation and phase place and amplitude according to the phase pushing figure of the emitting electromagnetic wave determined on last stage and range value, and launches.At this moment the energy work rate that receiving terminal receives can reach maximum.
Receiving terminal can finely tune the initial condition of each transmitter unit emitting electromagnetic wave at set intervals, if received power all can not be made to increase, then can judge that the power receiving wireless energy has reached maximum.
When transmitting terminal and receiving terminal relative position change, or exceeded certain threshold value apart from the last weight computing time, or when disturbing obvious, reentering the preparatory stage carries out weight computing, guarantees that the energy work rate that receiving terminal receives keeps maximum.Namely the energy that receives of receiving terminal is maximum, best results.
Above-described embodiment is the utility model preferably execution mode; but execution mode of the present utility model is not limited by the examples; change, the modification done under other any does not deviate from Spirit Essence of the present utility model and principle, substitute, combine, simplify; all should be the substitute mode of equivalence, be included within protection range of the present utility model.
Claims (3)
1. the radio magnetic wave electricity energy harvester based on multi-emitting unit, it is characterized in that, comprise transmitting terminal and receiving terminal, described receiving terminal comprises the energy dual-mode antenna connected successively, LC match circuit, voltage doubling rectifing circuit and energy-storage battery, described receiving terminal also comprises receiving terminal microprocessor, described receiving terminal microprocessor respectively with energy dual-mode antenna, LC match circuit, voltage doubling rectifing circuit and energy-storage battery are interconnected, described transmitting terminal comprises multiple transmitter unit and transmitting terminal microprocessor, the transmitting terminal microprocessor that each transmitter unit is corresponding with it is interconnected.
2. radio magnetic wave electricity energy harvester according to claim 1, is characterized in that, described transmitter unit is certain the antenna transmission unit independently in single antenna radio-frequency (RF) transmitter or multiple antennas radio-frequency (RF) transmitter.
3. radio magnetic wave electricity energy harvester according to claim 1, is characterized in that, described receiving terminal microprocessor and transmitting terminal microprocessor are single-chip microcomputer or digital signal processor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520714860.1U CN204992796U (en) | 2015-09-15 | 2015-09-15 | Radio magnetic wave energy collection system based on many emission unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520714860.1U CN204992796U (en) | 2015-09-15 | 2015-09-15 | Radio magnetic wave energy collection system based on many emission unit |
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| Publication Number | Publication Date |
|---|---|
| CN204992796U true CN204992796U (en) | 2016-01-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520714860.1U Expired - Fee Related CN204992796U (en) | 2015-09-15 | 2015-09-15 | Radio magnetic wave energy collection system based on many emission unit |
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|---|---|
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106340977A (en) * | 2016-09-12 | 2017-01-18 | 河南师范大学 | Microwave energy collecting device |
-
2015
- 2015-09-15 CN CN201520714860.1U patent/CN204992796U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106340977A (en) * | 2016-09-12 | 2017-01-18 | 河南师范大学 | Microwave energy collecting device |
| CN106340977B (en) * | 2016-09-12 | 2018-12-14 | 河南师范大学 | A kind of microwave energy collection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160120 Termination date: 20190915 |