CN105516039A - Wireless energy-carrying communication system based on frequency shift keying (FSK) and magnetic coupling resonance - Google Patents
Wireless energy-carrying communication system based on frequency shift keying (FSK) and magnetic coupling resonance Download PDFInfo
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- CN105516039A CN105516039A CN201510845432.7A CN201510845432A CN105516039A CN 105516039 A CN105516039 A CN 105516039A CN 201510845432 A CN201510845432 A CN 201510845432A CN 105516039 A CN105516039 A CN 105516039A
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Classifications
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- H04B5/79—
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/10—Frequency-modulated carrier systems, i.e. using frequency-shift keying
- H04L27/12—Modulator circuits; Transmitter circuits
Abstract
The invention discloses a wireless energy-carrying communication system based on magnetic coupling resonance. The wireless energy-carrying communication system comprises a transmitting device and a receiving device, wherein the transmitting device comprises a Bluetooth interface, a modulation circuit, a driving circuit and transmitting coils; and a receiving part comprises receiving coils, an electric energy conversion module, an information extraction module, a display and a music player interface; a transmitting unit is used for modulating data transmitted by a mobile phone or a computer over Bluetooth, and loading the modulated data onto the transmitting coils through the driving circuit in order to transmit the modulated data; and the receiving coils are used for acquiring signals transmitted by the transmitting coils in a magnetic coupling resonance way, and converting the signals into energy and information in order to drive the display and a music player to work. Through adoption of the wireless energy-carrying communication system, the reliability is ensured; the cost is relatively low at the same time; actual functions are enriched; and very high practicability is achieved.
Description
Technical field
The present invention relates to a kind of wireless portable communications system accurately can carrying out word, image transmitting based on frequency shift keying and magnetic coupling resonance, it is characterized in that achieving and information and energy are transmitted by same channel simultaneously.
Background technology
Along with the rise of applications of wireless technology, wireless information transfer and wireless energy transmission technology development grow, especially wireless information transfer, with WiFi, 3G/4G network, the different technologies forms such as microwave are widely used in every field, and the research of wireless energy transfer aspect also achieves the results of laboratory stage.
But as other resources, at present for the frequency resource that the mankind were familiar with, utilize is day by day rare, as important national strategy resource, Radio Spectrum Resource needs more efficiently, fully to utilize.So the wireless concept that can communicate of taking is suggested, and is intended to utilize radio magnetic wave by energy and parallel transmission of information, breaks away from the cable restriction of conventional energy and information transmission simultaneously, realize the real wireless penetration of electric room.
Wireless taking can the communication technology be expected to be widely used in the information exchange between high-speed radio-frequency label, Internet of Things and all kinds of mobile terminal and Energy Transfer, be expected to while realizing high speed information exchange, by the energy efficient in extraction Received signal strength to various terminal equipment feed, thus the inconvenience that replacement traditional wire or powered battery are brought, be particularly suitable for the application of the terminal node needing to dispense on a large scale.On the other hand, this technology also has broad application prospects at biomedical sector, for man-made organ and medical auxiliary electronic equipment as the implanted such as cardiac pacemaker, artificial cochlea equipment, can carry out non-contact power supply by this technology.
Wireless energy transmission technology general in the world comprises electromagnetic induction, microwave far-field radiation and magnetic coupling resonance at present.Electromagnetic induction technical transmission power is large, but transmitting procedure coil heating is serious, and the short and efficiency of transmission of transmission range increases with distance and diminishes rapidly, is easily subject to the impact of displacement and frequency change; Microwave far-field radiation long transmission distance, but high for transmitting antenna designing requirement, and efficiency of transmission is low, is easily subject to the interference of weather, environmental factor, and the ability penetrating obstacle is more weak.Magnetic coupling resonant transmission efficiency and transmission range are between first two technology, but technology is started late, and power and transmission range need to improve.
The wireless energy communication technology of taking will be more and more important in the effect of Internet of Things monitoring and field of mobile terminals.
Take the energy communication technology for wireless, the main difficult problem solved that needs is:
(1) how high efficiency transmission in certain distance is realized by the system and device of low cost.
(2) how to realize energy at receiving terminal to be separated with the self adaptation of information.
(3) interference of high-power energy signal for information signal how is reduced.
This device emphasis solves for above three problems, realizes a set of wireless portable communications system being applicable to mobile communication and Internet of Things monitoring sensor.
Summary of the invention
This invention is the advanced and applicable device adopting the technology such as Switching Power Supply inversion, magnetic coupling resonant transmission, embedded system, shift keying modulation demodulation and develop, and by FPGA programming realization FSK modulated power signals, realizes the common transport of energy and signal;
This invention is intended to realize following target:
(1) resource complicated utilization.Realizing by this device the carrier that same radio wave is energy, is again information carrier, and by resource complicated utilization such as components and parts, frequency spectrum, energy, " one is frequently dual-purpose ", " equipment is multiplex ", has far reaching significance for resource consolidation, fully exploitation.
(2) general.Adopt wireless taking the communication technology can realize effective combination of wireless energy transfer and wireless information transfer between system, development time is longer, system composition is complicated, be not easy to irrelevant special dealer learns comprehensively and grasps, system external reserves the data constrained input interface that can realize transparent transmission, user is without the need to grasping complicated internal circuit and design details, just this system can be utilized to carry out the exploitation of correlation engineering, reduce the requirement to user's relevant knowledge, make the large-scale promotion of platform become possibility.
(3) information security.For the present invention, system principle determines it obvious advantage in fail safe: receiving terminal can only receive the electromagnetic wave of transmitting terminal characteristic frequency in limited range.Developer can design unique machine code for transmitting terminal and receiving terminal, is verified by this code when message transfer, simultaneously because transmission range is limited, also effectively can prevent long-range attack, the fail safe of safeguards system.
For achieving the above object, this invention have employed following technical scheme: this is wireless, and portable communications system is made up of acrylic shell and system and device.System and device comprises emitter, channel transmission apparatus and receiving system.Emitter comprises modulates information circuit, energy inverter circuit; Channel transmission apparatus comprises acrylic skeleton, launch and accept coil; Receiving system comprises energy acceptance circuit, Information Receiving Circuits, character image display module.
Described modulates information circuit is by user interface, programmable gate array, and MCU controller forms; User interface provides that encoded keyboard accesses, bluetooth access standard, can realization matrix keyboard and mobile phone, the bluetooth access of computer the supporting user interface having mobile phone terminal and computer end.
Described energy inverter circuit is by metal-oxide-semiconductor driving chip, and digit chip, H bridge forms, and realizes that low frequency civil power is converted to high-frequency alternating current and is transmitted in channel.
Described transmitting coil adopts cylindrical screw shape structure, selects polyester enamelled wire coiling inductance in parallel CBB electric capacity, 30cm coil diameter, centre frequency 354.5kHz.
Described energy acceptance circuit is made up of rectifier filter, pressurizer, realizes the power demands for rear class display circuit.
Described Information Receiving Circuits is made up of optical coupling isolation circuit, waveform shaping circuit and demodulation MCU circuit, realizes word, image to be presented at accurately on rear class display.
Ensure that wireless take can communicate in energy and efficient information rate, continuous transmission without error code, accessed by multiple interfaces, be supplied to the convenient input selection flexibly of user.
Accompanying drawing explanation
Fig. 1 is major technique structural representation of the present invention.
Fig. 2 is emitter circuit of the present invention composition structural representation.
Fig. 3 is the composition structural representation of receiving system circuit of the present invention.
Fig. 4 is coil topology structural representation of the present invention.
Fig. 5 is mechanical structure schematic diagram of the present invention.
Embodiment
This is wireless takes and can comprise emitter, launch and accept coil, receiving system formation by communicator.
As shown in Figures 2 and 3, emitter receives the information of user's input by input interface, the control signal of load information is sent in FPGA by the information received after MCU process, after FPGA identifies control signal, send modulation signal, reduce the noise of modulation signal through shaping circuit, the modulation signal after noise reduction enters full bridge driving circuit, drives the transmitting primary coil of (2) in Fig. 5; Receiving system, by after the reception primary coil of (6) receives energy information signal in Fig. 5, goes out energy and information by energy signal split circuit sub-argument, supplies rear class display module respectively.
Figure 4 shows that coil topology structure, (1), for launching primary coil, adopting inductance capacitance series resonance, carrying out coupling matching to transmitting; (2) for launching secondary coil, adopting inductance capacitance parallel resonance, being responsible for transmitting signals in space channel; (3) be cumulative coil, improve the capacity gauge to energy; (4) for receiving secondary coil, be responsible for receiving the signal in space; (5) for receiving primary coil, being responsible for the signal in coupling matching reception secondary coil, and signal is accessed receiving system.
Described input interface comprises serial ports of computers and mobile phone terminal blue tooth interface, system carry keyboard interface.User can utilize computer, mobile phone remote or not remote to realize system manipulation, by the software editing information content, selection instruction in operation computer, mobile phone, then utilizes the mode that bluetooth sends or data wire is directly downloaded, and realizes system manipulation.Can also use and carry keyboard interface to realize the system input under Secure isolation environment.
Described FSK modulation circuit, realizes accurate signal madulation by STM32 as MCU control Alteracyclone Series FPGA.
Described full bridge driving circuit, the H-bridge drive circuit be made up of 4 metal-oxide-semiconductors efficient metal-oxide-semiconductor driver drives, collocation peripheral cell realizes taking energy communications.
Described energy signal split circuit, responsible sub-argument goes out energy and information signal.By rectification circuit, AC signal is converted to direct current signal, reduces Ripple Noise by filter circuit, then by voltage stabilizing circuit, the energy voltage collected is stabilized in the scope of requirement.Carry out amplitude limit by optical coupling isolation circuit, ensure that high-power signal can not cause damage to information identification circuit.Information signal after amplitude limit is sent into MCU and is carried out demodulation after shaping, identifies sent information.
As shown in Figure 5, (1) is emitter, protects internal circuit board by acrylic shell; (2) for launching primary coil; (3) for launching secondary coil, completed by acrylic skeleton and enamelled wire coiling.(1) be connected by wire with (2), (2) and (3) do not have physical connection.(4) be cumulative coil; (5) receive secondary coil, completed by acrylic skeleton and enamelled wire coiling; (6) for receiving primary coil; (7) be receiving system, protect internal circuit board by acrylic shell; (8) be display unit, be made up of display and peripheral circuit.
The course of work of the present invention is:
User's input characters or image information, according to protocol generation control signal after being identified by MCU, the square wave that control FPGA exports two-way frequency completes FSK modulation.After square wave sends into metal-oxide-semiconductor driver, control metal-oxide-semiconductor and cut-off, export high-power modulation signal, be carried on transmitting coil and send into space channel.After receiving coil receives signal by magnetic coupling resonance, after completing separation via energy information split circuit, display circuit shows.
Wherein, the coding and decoding process for information is as follows:
1) the Bluetooth receptions module of radiating portion receives the data that user sends;
2) data are sent to FPGA base-band information input by serial ports with 4800bps baud rate by bluetooth module;
3) FPGA adopts the baseband signal of FSK mode to input to modulate;
4) signal after FPGA modulation is input to full bridge driving circuit and carries out power amplification;
5) full-bridge amplifying circuit outputs to transmitting winding group after carrying out power amplification to input signal;
6) transmitting winding group and receiving coil group are by magnetic coupling resonance manner transferring energy and information;
7) for receiving terminal provides energy after the electromagnetic signal received is carried out rectifying and wave-filtering voltage stabilizing by receiving coil group;
8) the receiving terminal demodulates information module of energy is obtained by the information in light-coupled isolation technology demodulation electromagnetic signal;
9) energy and information are exported to terminal equipment by receiving terminal, carry out information displaying.
Apparatus of the present invention transmitting terminal input voltage DC12V, running current 1.5A; Message transmission rate 4800bps; Receiving terminal output voltage DC3.3V.Resonance coil wire diameter 1.8mm, diameter 30cm.Transmission range 60cm, resonance frequency 354.5kHz.
Adopt this method to realize wireless taking can communicate, cost is low, and method is convenient, and adopt general-purpose interface, user can input data reception data and not need to understand relative theory and internal structure under completely transparent environment.The present invention also reserves debugging interface in a device, engineering staff can be facilitated to carry out the debugging of index of correlation, expand application scenario.
Claims (9)
1. the invention discloses a kind of wireless portable communications system based on magnetic coupling resonance, mainly achieving in short-range wireless taking reliably can communicate; This invention is based on the principle of magnetic coupling resonance, whole invention comprises emitter and receiving system, wherein emitter comprises bluetooth adapter circuit, modulation circuit, drive circuit and transmitting coil, and receiving unit comprises receiving coil, electric energy conversion module, information extraction modules and display, music player interface; Transmitter unit is launched being loaded on transmitting coil through drive circuit after the Data Modulation transmitted by bluetooth by mobile phone or computer, receiving coil obtains the signal of transmitting coil transmitting by magnetic coupling resonance manner, be converted into energy and information, driving display and music players work; The present invention reduces the cost that whole system realizes while ensureing reliability, has enriched the function of transfer of data, has had very strong practicality.
2. the wireless portable communications system based on magnetic coupling resonance according to claim 1, it is characterized in that, described channel transmission apparatus is made up of acrylic cylindrical carcass, enamelled wire, electric capacity; Designed channel transmission apparatus has the performance that the life-span is long, anti-impact force is strong, excellent insulating property, recovery rate are high, easy to maintenance, wherein launch and accept coil adopts cylindrical screw shape structure, five coil topology structures are used to realize coupling matching requirement between coil, select polyester enamelled wire coiling inductance in parallel CBB electric capacity, 30cm coil diameter, centre frequency 354.5kHz.
3. the wireless portable communications system based on magnetic coupling resonance according to claim 1, it is characterized in that, six described coil topology structures are divided into radiating portion two coil and receiving unit three-winding, be symmetric, launch the transmitting primary coil in two coils to be made up of the enamelled wire inductance in parallel electric capacity of planar circular coiling, launch secondary coil and be made up of the enamelled wire inductance in parallel electric capacity of spiral cylinder coiling; Receiving unit primary coil and the same radiating portion of secondary coil, receiving unit cumulative coil is coiled into shunt capacitance by enamelled wire individual pen.
4. the wireless portable communications system based on magnetic coupling resonance according to claim 1, it is characterized in that: emitter modulates information circuit is by user interface, programmable gate array, MCU controller forms, and user interactions part comprises matrix keyboard and mobile phone, the bluetooth incoming end of computer and the user operation software of supporting mobile phone terminal and computer end; Worked in coordination with the information coding process of energy signal by programmable gate array and MCU by program; The input through keyboard of user interactions part is made up of matrix keyboard, single-chip microcomputer identification, display, realizes the input of keyboard and the visualization interface of user by program; Bluetooth incoming end realizes adaptive by bluetooth module; The function software of mobile phone terminal uses Android to write APP and realizes, and the function software of computer end uses VB programming realization.
5. the wireless portable communications system based on magnetic coupling resonance according to claim 1, is characterized in that: energy inverter circuit is made up of metal-oxide-semiconductor driving chip, digit chip, H bridge, realizes function low frequency civil power being converted to high-frequency alternating current; Metal-oxide-semiconductor driving chip built-up circuit is selected to convert a road PWM ripple PWM ripple of two-way complementation to, the noise signal in waveform is reduced through digital shaping circuit, input the H bridge power amplification circuit be made up of four NMOS tube, produce energy and the information signal of power stage.
6. the wireless portable communications system based on magnetic coupling resonance according to claim 1, is characterized in that: the energy acceptance circuit described in receiving system is made up of rectifier filter, pressurizer, realizes the power demands for rear class display circuit; Wherein rectifier filter realizes the rectification of low pressure drop by four Schottky diodes, realizes level and smooth filter effect by the ceramic disc capacitor of jumbo electrochemical capacitor and low capacity; The voltage that pressurizer coordinates external circuit to realize in specified scope by voltage stabilizing chip exports.
7. the wireless portable communications system based on magnetic coupling resonance according to claim 1, it is characterized in that: the Information Receiving Circuits described in receiving system is made up of optical coupling isolation circuit, waveform shaping circuit and demodulation MCU circuit, realize word, image to be presented on rear class display accurately; Wherein waveform shaping circuit uses voltage comparator collecting energy output end voltage value as a reference, carries out wave recovery for information signal; Demodulation MCU coordinates Information Monitoring signal receiving to go out passed on information by the serial of two panels mcu programming.
8. the wireless portable communications system based on magnetic coupling resonance according to claim 1, it is characterized in that: described demonstration module have employed the communication protocol worked out voluntarily and communicates with system, when defining demonstration module and system communication, the mandatory rule of institute and agreement, achieve proper communication between the two.
9. the wireless portable communications system based on magnetic coupling resonance according to claim 1, is characterized in that: the data flow process of the described wireless portable communications system based on magnetic coupling resonance is as follows:
1) the Bluetooth receptions module of radiating portion receives the data that user sends;
2) data are sent to FPGA base-band information input by serial ports with 4800bps baud rate by bluetooth module;
3) FPGA adopts the baseband signal of FSK mode to input to modulate;
4) signal after FPGA modulation is input to full bridge driving circuit and carries out power amplification;
5) full-bridge amplifying circuit outputs to transmitting winding group after carrying out power amplification to input signal;
6) transmitting winding group and receiving coil group are by magnetic coupling resonance manner transferring energy and information;
7) for receiving terminal provides energy after the electromagnetic signal received is carried out rectifying and wave-filtering voltage stabilizing by receiving coil group;
8) the receiving terminal demodulates information module of energy is obtained by the information in light-coupled isolation technology demodulation electromagnetic signal;
9) energy and information are exported to terminal equipment by receiving terminal, show.
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| CN201510845432.7A CN105516039A (en) | 2015-11-30 | 2015-11-30 | Wireless energy-carrying communication system based on frequency shift keying (FSK) and magnetic coupling resonance |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106019955A (en) * | 2016-05-23 | 2016-10-12 | 合肥汉信智控科技有限公司 | Smart home control system and control method thereof |
| CN107592140A (en) * | 2017-07-13 | 2018-01-16 | 重庆大学 | ICPT bidirectional data transmission systems based on portion of energy coil |
| CN109743551A (en) * | 2019-01-14 | 2019-05-10 | 李昂 | A kind of signal for wireless video monitoring and energy simultaneous interpretation system |
| CN109995392A (en) * | 2017-12-28 | 2019-07-09 | 上海胤祺集成电路有限公司 | Magnetic coupling communication transceiver, magnetic coupling communication master chip and magnetic coupling communication system |
| WO2019161525A1 (en) * | 2018-02-22 | 2019-08-29 | 廖淑辉 | Tiny signal detection device and method |
| CN110998764A (en) * | 2017-08-22 | 2020-04-10 | 三星电子株式会社 | Wireless power transceiver and display device having the same |
| CN111490568A (en) * | 2019-01-27 | 2020-08-04 | 上海七桥机器人有限公司 | Wireless charging method and device |
| CN111667041A (en) * | 2019-03-08 | 2020-09-15 | 凌通科技股份有限公司 | Music label interaction system and music label interaction method |
| CN114123529A (en) * | 2021-07-19 | 2022-03-01 | 西安电子科技大学 | Mutual coupling capacitance feedback type integral closed loop magnetic coupling wireless power supply device, system and method |
| CN115174325A (en) * | 2022-06-07 | 2022-10-11 | 中国南方电网有限责任公司超高压输电公司 | Double-tone FSK modulation and demodulation system for wireless energy-carrying communication |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106019955A (en) * | 2016-05-23 | 2016-10-12 | 合肥汉信智控科技有限公司 | Smart home control system and control method thereof |
| CN107592140A (en) * | 2017-07-13 | 2018-01-16 | 重庆大学 | ICPT bidirectional data transmission systems based on portion of energy coil |
| CN110998764A (en) * | 2017-08-22 | 2020-04-10 | 三星电子株式会社 | Wireless power transceiver and display device having the same |
| CN110998764B (en) * | 2017-08-22 | 2022-05-03 | 三星电子株式会社 | Wireless power transceiver and display device having the same |
| US11171515B2 (en) | 2017-08-22 | 2021-11-09 | Samsung Electronics Co., Ltd. | Wireless power transceiver and display apparatus with the same |
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| CN109743551A (en) * | 2019-01-14 | 2019-05-10 | 李昂 | A kind of signal for wireless video monitoring and energy simultaneous interpretation system |
| CN111490568A (en) * | 2019-01-27 | 2020-08-04 | 上海七桥机器人有限公司 | Wireless charging method and device |
| CN111667041A (en) * | 2019-03-08 | 2020-09-15 | 凌通科技股份有限公司 | Music label interaction system and music label interaction method |
| TWI741265B (en) * | 2019-03-08 | 2021-10-01 | 凌通科技股份有限公司 | Interactive music tag system and interactive method thereof |
| CN111667041B (en) * | 2019-03-08 | 2023-09-08 | 凌通科技股份有限公司 | Music tag interaction system and music tag interaction method |
| CN114123529A (en) * | 2021-07-19 | 2022-03-01 | 西安电子科技大学 | Mutual coupling capacitance feedback type integral closed loop magnetic coupling wireless power supply device, system and method |
| CN114123529B (en) * | 2021-07-19 | 2024-01-16 | 西安电子科技大学 | Mutual coupling capacitance feedback type integral closed loop magnetic coupling wireless power supply device, system and method |
| CN115174325A (en) * | 2022-06-07 | 2022-10-11 | 中国南方电网有限责任公司超高压输电公司 | Double-tone FSK modulation and demodulation system for wireless energy-carrying communication |
| CN115174325B (en) * | 2022-06-07 | 2024-02-09 | 中国南方电网有限责任公司超高压输电公司 | Double-tone FSK modulation-demodulation system for wireless energy-carrying communication |
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Application publication date: 20160420 |