CN102170159A - Mobile wireless charging system based on solar energy - Google Patents
Mobile wireless charging system based on solar energy Download PDFInfo
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- CN102170159A CN102170159A CN2011101140049A CN201110114004A CN102170159A CN 102170159 A CN102170159 A CN 102170159A CN 2011101140049 A CN2011101140049 A CN 2011101140049A CN 201110114004 A CN201110114004 A CN 201110114004A CN 102170159 A CN102170159 A CN 102170159A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
Abstract
The invention relates to a mobile wireless charging system based on solar energy, which comprises a solar energy storage module, a pre-processing module, a transmitting module, a receiving module and a post-processing module. The solar energy storage module in the invention works when a sensor network does not need charging, and converts the energy of solar radiation into electric energy which is stored in a storage battery; and when the sensor network needs charging, the storage battery is separated from a solar energy battery and a solar energy controller, and the storage battery, the pre-processing module and the transmitting module are all moved to different sensor terminals so as to charge the sensor terminals. The transmitting module and the receiving module carry out wireless energy transmission by adopting a magnetic resonance mode. The mobile wireless charging system is used for respectively wirelessly charging the numerous sensor terminals which are widely distributed in the sensor network by adopting a movable mode of the transmitting module and utilizing solar energy as a clean energy, and has the advantages of high transmission efficiency, long transmission range, flexible realization, low cost, and the like.
Description
Technical field
The present invention relates to the wireless power technical field, relate in particular to a kind of mobile wireless charging system based on solar energy.
Background technology
Present wireless energy transmission technology can be divided into several kinds according to transmission mechanism, range of application and efficient.The far field technology is used electromagnetic wave propagation theory, the mode Propagation of Energy that promptly the radio propagation signal is identical.This technology has been successfully applied to UHF RFID label, also is studied and is applied to satellite solar power station.The efficiency of transmission of this technology can still must accurately be aimed at up to 90%, can only carry out the transmission of point-to-point form of straight lines.And the RF broadcast mode is a kind of method of omnirange transmission of power, in the overlay area Anywhere all can the wireless transmission energy.But, because power density is pressed 1/r
2Reduce, the energy that causes receiving is than little several orders of magnitude of launching of energy, and efficiency of transmission is low.The near field electromagnetic induction technology does not rely on electromagnetic wave propagation, and efficient is higher, but transmission range is very near, has only about 1 centimetre.The near field RFID technology then improves transmission range by sacrificing efficient, and its transmission range can reach tens centimetres, but efficient has only 1%-2%.
Along with the rise of ubiquitous service, cloud computing and Internet of Things, supported the development of a collection of new industry, such as intelligent communication, intelligent grid, intelligent transportation, Smart Home and size intelligent healthcare etc.These new industries depend on sensor network mostly, and these number of sensors are many, and it is wide to distribute, and can't or be inconvenient to use lead power supply or replacing battery maintenance cost too high, therefore need the unconventional power supply technique of development.Adopt the wireless power technology, can make people take leave of the persistant various power lines and the electric power cabling of cobweb formula, can save wiring used a large amount of copper, plastic or other material, and the quantity that reduces waste battery, reduction is to the pollution of environment, improve people's living environment, have great using value.
Summary of the invention
Technical problem at above existence, the purpose of this invention is to provide a kind of mobile wireless charging system based on solar energy, utilize this clean energy resource of solar energy, the mode of taking transmitter module to move is carried out wireless charging respectively to many, the widespread sensor terminals of quantity in the sensor network.
For achieving the above object, the present invention adopts following technical scheme: a kind of mobile wireless charging system based on solar energy, comprise an electric supply installation and one or above charging device, each charging device is arranged on sensor terminal places different in the sensor network, electric supply installation comprises solar energy power accumulating module, pre-processing module and transmitter module, each charging device comprises receiver module and post-processing module
The solar energy power accumulating module includes solar module, controller for solar and storage battery, when carrying out solar energy power accumulating, the output of solar module links to each other with the input of controller for solar, the output of controller for solar links to each other with storage battery, and pre-processing module, transmitter module and each charging device are not worked; When charging for sensor network, the output of controller for solar and storage battery disconnect, storage battery links to each other with pre-processing module, and storage battery and pre-processing module, transmitter module move near the sensor terminal together, by set charging device sensor terminal are charged;
Pre-processing module includes frequency generation module and power amplifier module, the output of storage battery inserts the input of frequency generation module and the input of power amplifier module, the output of frequency generation module links to each other with the input of power amplifier module, and the frequency that frequency generation module produces is an operating frequency;
Transmitter module includes drive coil L3-1, transmitting coil L3-2 and tuning capacity C3-1, C3-2, drive coil L3-1 links to each other with the output of power amplifier module, drive coil L3-1 and tuning capacity C3-1 compose in parallel resonant tank, and resonance is in the operating frequency place, and the output signal of drive coil L3-1 propagates into transmitting coil L3-2 through free space; Transmitting coil L3-2 and tuning capacity C3-2 compose in parallel resonant tank, and resonance is in the operating frequency place, near the charging device of the output signal of transmitting coil L3-2 free space propagates into;
If total n charging device, wherein the receiver module of i charging device includes receiving coil L4-i-1, loading coil L4-i-2 and tuning capacity C4-i-1, C4-i-2, and i gets 1～n; Receiving coil L4-i-1 and tuning capacity C4-i-1 compose in parallel resonant tank, and resonance is in the operating frequency place, and receiving coil L4-i-1 receives the output signal that transmitting coil L3-2 propagates through free space; Loading coil L4-i-2 and tuning capacity C4-i-2 compose in parallel resonant tank, and resonance is in the operating frequency place, and the output signal of receiving coil L4-i-1 propagates into loading coil L4-i-2 through free space;
The post-processing module of each charging device includes high-frequency rectification module and Voltage stabilizing module, the output of loading coil is connected to the input of high-frequency rectification module in the corresponding receiver module, the output of high-frequency rectification module is connected to the input of Voltage stabilizing module, and the output of Voltage stabilizing module is connected to load.
The present invention is applicable to that sensor terminal quantity is many, the charging of widespread sensor network.When sensor terminal need not to charge, by solar energy to charge in batteries.When sensor terminal need charge, by one movably transmitter module a plurality of sensor terminals are carried out wireless charging, transmitter module then by be full of the electricity storage battery power supply.Transmitter module and receiver module adopt the magnetic resonance mode to carry out wireless energy transfer, have efficiency of transmission height, long transmission distance, flexible, the low cost and other advantages of realization.
Description of drawings
Fig. 1 is the system block diagram of the embodiment of the invention;
Fig. 2 is the block diagram of solar energy power accumulating module in the embodiment of the invention;
Fig. 3 is the block diagram of pre-processing module in the embodiment of the invention;
Fig. 4 is the block diagram of transmitter module and receiver module in the embodiment of the invention;
Fig. 5 is the block diagram of post-processing module in the embodiment of the invention.
Embodiment
Below in conjunction with drawings and Examples, the present invention is described in further detail.
Referring to Fig. 1, the embodiment of the invention comprises an electric supply installation 100 and one or above charging device, establishes total n charging device 200-1,200-2 ... 200-n.Each charging device 200-1,200-2 ... 200-n is arranged on sensor terminal places different in the sensor network, electric supply installation 100 comprises solar energy power accumulating module 1, pre-processing module 2 and transmitter module 3, each charging device comprises receiver module and post-processing module, be that charging device 200-1 comprises receiver module 4-1 and post-processing module 5-1, charging device 200-2 comprises receiver module 4-2 and post-processing module 5-2 ... charging device 200-n comprises receiver module 4-n and post-processing module 5-n.
Solar energy power accumulating module 1 includes solar module 11, controller for solar 12 and storage battery 13, when carrying out solar energy power accumulating, the output of solar module 11 links to each other with the input of controller for solar 12, the output of controller for solar 12 links to each other with storage battery 13, with the power conversion of solar radiation be electrical power storage in storage battery 13, pre-processing module 2, transmitter module 3 and each charging device 200-1,200-2 ... 200-n does not work.When charging for sensor network, the output of controller for solar 12 and storage battery 13 disconnect, and storage battery 13 separates with controller for solar 12 with solar module 11, and storage battery 13 links to each other with pre-processing module 2.Particularly, the output of storage battery 13 links to each other with the input of pre-processing module 2, and the output of pre-processing module 2 links to each other with the input of transmitter module 3.Storage battery 13 moves to different sensor terminal places together with pre-processing module 2, transmitter module 3 and charges.The wireless energy transfer that realizes charging is based on the magnetic resonance principle, transmitter module 3 and receiver module 4-1,4-2 ... 4-n resonates at the operating frequency place that pre-processing module 2 produces.
Referring to Fig. 2, the solar energy power accumulating module 1 in the embodiment of the invention comprises solar module 11, controller for solar 12, storage battery 13.When carrying out solar energy power accumulating, the output of solar module 11 links to each other with the input of controller for solar 12, and the output of controller for solar 12 links to each other with the input of storage battery 13.Described solar module 11 is converted to electric energy with the emittance of the sun, according to power demand, can adopt monocrystaline silicon solar cell, polysilicon solar cell or amorphous silicon thin-film solar cell.Described controller for solar 12 can adopt MCU to realize, controls the operating state of whole solar energy power accumulating module 1 by MCU, and storage battery (group) 13 is played the effect of charge protection, over.During concrete enforcement, can adopt the WS-MPPT series of Wei Ershi company.Described storage battery 13 need it's time to offer follow up device with the electrical power storage that solar module 11 is provided again, and generally adopts lead-acid battery.The battery pack that can adopt a plurality of storage batterys to constitute during concrete enforcement is so that the more electric energy of storage.
Referring to Fig. 3, the pre-processing module 2 in the embodiment of the invention comprises frequency generation module 21 and power amplifier module 22 compositions.When charging for sensor network, the input of frequency generation module 21 links to each other with the output of storage battery 13, and the input of power amplifier module 22 links to each other with the output of frequency generation module 21 and the output of storage battery 13.Described frequency generation module 21 is mainly finished the generation of oscillator signal, for the transmission of energy provides a tranmitting frequency, the i.e. operating frequency of native system.Can adopt the Kao Bizi oscillating circuit to constitute during concrete enforcement, form oscillation circuit, produce the sine wave signal of fixed frequency according to the transmission range needs by inductance, electric capacity.Operating frequency is generally about 10MHz, also can adopt other big or small frequencies.The operating frequency of the embodiment of the invention adopts 10MHz.The direct current that the power supply of frequency generation module 21 adopts storage battery 13 directly to provide.Described power amplifier module 22 can adopt two stage power to amplify, and providing under the necessary power level, guarantees frequency accuracy.The direct current that the power supply of power amplifier module 22 also adopts storage battery 13 directly to provide.
Referring to Fig. 4, the transmitter module 3 in the embodiment of the invention comprises drive coil L3-1, tuning capacity C3-1, transmitting coil L3-2 and tuning capacity C3-2.Drive coil L3-1 links to each other with the output of power amplifier module 22, and the output signal of drive coil L3-1 propagates into transmitting coil L3-2 through free space.Drive coil L3-1 and tuning capacity C3-1 compose in parallel resonant tank, and resonance frequency is 10MHz.Transmitting coil L3-2 and tuning capacity C3-2 compose in parallel resonant tank, and resonance frequency is 10MHz.Near the charging device of the output signal of transmitting coil L3-2 free space propagates into.Among the embodiment, drive coil L3-1 and transmitting coil L3-2 are circular coil, and diameter is 50cm.The distance of drive coil L3-1 and transmitting coil L3-2 is about 10cm.Tuning capacity C3-1, C3-2 are variable capacitance, conveniently resonance frequency are adjusted to 10MHz.
Total n charging device in the embodiment of the invention, wherein the receiver module 4-i of i charging device 200-i includes receiving coil L4-i-1, loading coil L4-i-2 and tuning capacity C4-i-1, C4-i-2, and i gets 1～n; Receiving coil L4-i-1 and tuning capacity C4-i-1 compose in parallel resonant tank, and resonance is in operating frequency 10MHz place, and receiving coil L4-i-1 receives the output signal that transmitting coil L3-2 propagates through free space; Loading coil L4-i-2 and tuning capacity C4-i-2 compose in parallel resonant tank, and resonance is in operating frequency 10MHz place, and the output signal of receiving coil L4-i-1 propagates into loading coil L4-i-2 through free space.Specifically referring to Fig. 4, receiver module 4-1 in the embodiment of the invention comprises receiving coil L4-1-1, tuning capacity C4-1-1, loading coil L4-1-2, tuning capacity C4-1-2, and receiver module 4-2 comprises receiving coil L4-2-1, tuning capacity C4-2-1, loading coil L4-2-2, tuning capacity C4-2-2 ... receiver module 4-n comprises receiving coil L4-n-1, tuning capacity C4-n-1, loading coil L4-n-2, tuning capacity C4-n-2.Moving to sensor terminal place, charging device 200-1 place together with storage battery 13 and pre-processing module 2, transmitter module 3 is example, the course of work of receiver module 4-1 is, when receiving coil L4-1-1 receives the output signal of the transmitting coil L3-2 that propagates through free space, its output signal propagates into loading coil L4-1-2 through free space.The operation principle of other receiver modules is identical.Among the embodiment, receiving coil L4-1-1, L4-2-1 ... L4-n-1 and loading coil L4-1-2, L4-2-2 ... L4-n-2 is circular coil, and diameter is about 2cm, and the number of turn is 20 circles.Receiving coil L4-1-1 and loading coil L4-1-2, receiving coil L4-2-1 and loading coil L4-2-2 ... the distance of receiving coil L4-n-1 and loading coil L4-n-2 is about 10cm respectively.Tuning capacity C4-1-1, C4-2-1 ... C4-n-1 and C4-1-2, C4-2-2 ..., C4-n-2 is variable capacitance, convenient resonance frequency is adjusted to 10MHz.
Referring to Fig. 5, the post-processing module 5-i of i charging device 200-i in the embodiment of the invention is made up of high-frequency rectification module 5-i-1 and Voltage stabilizing module 5-i-2.The output of receiver module 4-i (being the output of loading coil L4-i-2) is connected to the input of high-frequency rectification module 5-i-1, the output of high-frequency rectification module 5-i-1 is connected to the input of Voltage stabilizing module 5-i-2, and the output of Voltage stabilizing module 5-i-2 is connected to the sensor terminal place as load.High-frequency rectification module 5-i-1 carries out high-frequency rectification to the output signal of receiver module 4-i, and the direct current signal that output is used for load can adopt diode rectification; Voltage stabilizing module 5-i-2 carries out voltage stabilizing to the output signal of high-frequency rectification module 5-i-1, exports stable voltage and uses for sensor terminal, can adopt 7805 modules to realize.
The course of work of the embodiment of the invention is: solar energy power accumulating module 1 is worked when sensor network need not to charge, and is that electrical power storage is in storage battery 13 with the power conversion of solar radiation.When sensor network need charge, storage battery 13 separated with controller for solar 12 with solar cell 11, storage battery 13 and pre-processing module 2 and transmitter module 3 is moved to the sensor terminal place together it is charged.Each sensor terminal place all is furnished with a cover and receives module and post-processing module.Storage battery 13, pre-processing module 2 and transmitter module 3 at first move to receiver module 4-1 place to its load that is connected charging.Transmitter module 3 and receiver module 4-1 resonate at the operating frequency place that frequency generation module 21 produces.Drive coil L3-1, transmitting coil L3-2, receiving coil L4-1-1, loading coil L4-1-2 retainer shaft symmetry, distance between transmitting coil L3-2 and the receiving coil L4-1-1 is different with operating frequency and different according to coil diameter, is about 1 ~ 2 meter under 10MHz.Transmitter module 3 and receiver module 4-1 carry out wireless energy transfer based on magnetic resonance, thereby wireless charging is carried out in load.After being full of electricity, storage battery 13, pre-processing module 2 and transmitter module 3 move to receiver module 4-2 place to its load that is connected charging.Transmitter module 3 and receiver module 4-1 resonate at the operating frequency 10MHz place that frequency generation module 21 produces.Drive coil L3-1, transmitting coil L3-2, receiving coil L4-2-1, loading coil L4-2-2 retainer shaft symmetry, the distance between transmitting coil L3-2 and the receiving coil L4-2-1 is about 1 ~ 2 meter.Transmitter module 3 and receiver module 4-2 carry out wireless energy transfer based on magnetic resonance, thereby wireless charging is carried out in load.The rest may be inferred ... storage battery 13, pre-processing module 2 and transmitter module 3 are by manually moving to receiver module 4-n place to its load that is connected charging.Transmitter module 3 and receiver module 4-n resonate at the operating frequency 10MHz place that frequency generation module 21 produces.Drive coil L3-1, transmitting coil L3-2, receiving coil L4-n-1, loading coil L4-n-2 retainer shaft symmetry, the distance between transmitting coil L3-2 and the receiving coil L4-n-1 is about 1 ~ 2 meter.Transmitter module 3 and receiver module 4-n carry out wireless energy transfer based on magnetic resonance, thereby wireless charging is carried out in load.Like this, just can carry out wireless charging by a transmitter module 3 to many, the widespread all the sensors terminals of quantity in the sensor network.
Above content is in conjunction with optimum implementation the present invention to be said further describing of doing, and can not assert that concrete enforcement of the present invention is only limited to these explanations.It should be appreciated by those skilled in the art, do not breaking away under the situation about limiting, can carry out various modifications in detail, all should be considered as belonging to protection scope of the present invention by appended claims.
Claims (2)
1. mobile wireless charging system based on solar energy, it is characterized in that: comprise an electric supply installation and one or above charging device, each charging device is arranged on sensor terminal places different in the sensor network, electric supply installation comprises solar energy power accumulating module, pre-processing module and transmitter module, each charging device comprises receiver module and post-processing module
The solar energy power accumulating module includes solar module, controller for solar and storage battery, when carrying out solar energy power accumulating, the output of solar module links to each other with the input of controller for solar, the output of controller for solar links to each other with storage battery, and pre-processing module, transmitter module and each charging device are not worked; When charging for sensor network, the output of controller for solar and storage battery disconnect, storage battery links to each other with pre-processing module, and storage battery and pre-processing module, transmitter module move near the sensor terminal together, by set charging device sensor terminal are charged;
Pre-processing module includes frequency generation module and power amplifier module, the output of storage battery inserts the input of frequency generation module and the input of power amplifier module, the output of frequency generation module links to each other with the input of power amplifier module, and the frequency that frequency generation module produces is an operating frequency;
Transmitter module includes drive coil L3-1, transmitting coil L3-2 and tuning capacity C3-1, C3-2, drive coil L3-1 links to each other with the output of power amplifier module, drive coil L3-1 and tuning capacity C3-1 compose in parallel resonant tank, and resonance is in the operating frequency place, and the output signal of drive coil L3-1 propagates into transmitting coil L3-2 through free space; Transmitting coil L3-2 and tuning capacity C3-2 compose in parallel resonant tank, and resonance is in the operating frequency place, near the charging device of the output signal of transmitting coil L3-2 free space propagates into;
If total n charging device, wherein the receiver module of i charging device includes receiving coil L4-i-1, loading coil L4-i-2 and tuning capacity C4-i-1, C4-i-2, and i gets 1～n; Receiving coil L4-i-1 and tuning capacity C4-i-1 compose in parallel resonant tank, and resonance is in the operating frequency place, and receiving coil L4-i-1 receives the output signal that transmitting coil L3-2 propagates through free space; Loading coil L4-i-2 and tuning capacity C4-i-2 compose in parallel resonant tank, and resonance is in the operating frequency place, and the output signal of receiving coil L4-i-1 propagates into loading coil L4-i-2 through free space;
The post-processing module of each charging device includes high-frequency rectification module and Voltage stabilizing module, the output of loading coil is connected to the input of high-frequency rectification module in the corresponding receiver module, the output of high-frequency rectification module is connected to the input of Voltage stabilizing module, and the output of Voltage stabilizing module is connected to load.
2. according to the described mobile wireless charging system based on solar energy of claim 1, it is characterized in that: tuning capacity is a variable capacitance.
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| CN2011101140049A CN102170159B (en) | 2011-05-04 | 2011-05-04 | Mobile wireless charging system based on solar energy |
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| CN2011101140049A CN102170159B (en) | 2011-05-04 | 2011-05-04 | Mobile wireless charging system based on solar energy |
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| CN102386686A (en) * | 2011-11-08 | 2012-03-21 | 中国矿业大学 | Motion type wireless electric energy transmission system |
| CN103368751A (en) * | 2013-07-01 | 2013-10-23 | 杭州电子科技大学 | Non-contact type charging node deploying method facing to sensor network |
| CN103915658A (en) * | 2013-01-05 | 2014-07-09 | 陈彩惠 | Wireless charging method and its apparatus |
| CN104135088A (en) * | 2014-08-08 | 2014-11-05 | 哈尔滨工业大学 | Non-identical transmitting and receiving coil pair applicable to wireless power transmission and capable of restraining frequency splitting and manufacturing method of non-identical transmitting and receiving coil pair |
| CN106026343A (en) * | 2016-06-30 | 2016-10-12 | 珠海德光源集团有限公司 | Solar wireless charging device |
| CN106488587A (en) * | 2016-11-03 | 2017-03-08 | 国网安徽省电力公司信息通信分公司 | A kind of wireless sensing net node device based on wireless charging and wireless charging method |
| CN108039780A (en) * | 2018-01-30 | 2018-05-15 | 国网江苏省电力有限公司电力科学研究院 | A kind of laser power supply system for substation |
| CN108631379A (en) * | 2017-03-23 | 2018-10-09 | 捷佳科技股份有限公司 | Wireless charging device |
| CN108964284A (en) * | 2018-07-12 | 2018-12-07 | 深圳市谷粒科技有限公司 | A kind of power supply unit and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102386686A (en) * | 2011-11-08 | 2012-03-21 | 中国矿业大学 | Motion type wireless electric energy transmission system |
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| CN103368751A (en) * | 2013-07-01 | 2013-10-23 | 杭州电子科技大学 | Non-contact type charging node deploying method facing to sensor network |
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| CN104135088A (en) * | 2014-08-08 | 2014-11-05 | 哈尔滨工业大学 | Non-identical transmitting and receiving coil pair applicable to wireless power transmission and capable of restraining frequency splitting and manufacturing method of non-identical transmitting and receiving coil pair |
| CN106026343A (en) * | 2016-06-30 | 2016-10-12 | 珠海德光源集团有限公司 | Solar wireless charging device |
| CN106488587A (en) * | 2016-11-03 | 2017-03-08 | 国网安徽省电力公司信息通信分公司 | A kind of wireless sensing net node device based on wireless charging and wireless charging method |
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| CN108039780A (en) * | 2018-01-30 | 2018-05-15 | 国网江苏省电力有限公司电力科学研究院 | A kind of laser power supply system for substation |
| CN108039780B (en) * | 2018-01-30 | 2024-03-08 | 国网江苏省电力有限公司电力科学研究院 | Laser energy supply system for transformer substation |
| CN108964284A (en) * | 2018-07-12 | 2018-12-07 | 深圳市谷粒科技有限公司 | A kind of power supply unit and method |
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| CN102170159B (en) | 2013-01-09 |
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