CN104184519B - A kind of visible light wireless communication system of energy-autarchic - Google Patents
A kind of visible light wireless communication system of energy-autarchic Download PDFInfo
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- CN104184519B CN104184519B CN201410424782.1A CN201410424782A CN104184519B CN 104184519 B CN104184519 B CN 104184519B CN 201410424782 A CN201410424782 A CN 201410424782A CN 104184519 B CN104184519 B CN 104184519B
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E70/00—Other energy conversion or management systems reducing GHG emissions
- Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a kind of visible light communication system of energy-autarchic, it includes：Computer, signal send modulation module, LED light source, silicon photocell, the first filter circuit, data storage, the second filter circuit, amplification demodulator circuit, terminal device；Wherein, the computer export transmission signal, the signal sends modulation module to be used for the transmission signal loading to the LED light source, and the light intensity signal of change is sent by the LED light source；The silicon photocell receives the light intensity signal of the change, and converts thereof into corresponding voltage signal；First filter circuit filters AC compounent therein, and second filter circuit filters DC component therein；The DC component is used to power the data storage and amplification demodulator circuit, and the AC compounent recovers primary signal after being demodulated by the amplification demodulator circuit；The terminal device is used to receive the primary signal from the amplification demodulator circuit and the data storage.
Description
Technical field
The present invention relates to technical field of visible light communication, the visible light wireless communication system of more particularly to a kind of energy-autarchic
System.
Background technology
LED-based visible light communication (VLC) system will be illuminated and merged with communication, be a kind of emerging light wireless communication skill
Art.LED light source has the characteristics of fast response time, long lifespan, low-power consumption.In recent years, constantly carrying with LED luminous efficiencies
Height, LED is gradually replacing incandescent lamp turns into lighting source of future generation.VLC has security and privacy higher, does not produce
Electromagnetic interference, is another communication outside radio communication without the permission of corresponding band.VLC is
Focus as domestic and international research is (referring to document：Aleksandar Jovicic et al, " Visible Light
Communication：Opportunities, Challenges and the Path to Market ", IEEE
Communications Magazine, Vol.51, no.12, p.26-32 (2013)).
The research that silicon photocell is used for visible light communication is also little.The scientific research personnel of South Korea have studied silicon photocell and connects first
The feasibility and frequency response characteristic of visible light signal are received (referring to document：Sung-Man Kim et al., " Simultaneous
Reception of solar power and visible light ", Optical Engineering, Vol.53, no.4
(2014))。
At present, it is seen that in optical communication system, the photo-electric conversion element such as multiplex PIN or APD makees optical receiver, by rear end electricity
Realize amplification, filtering, demodulation of signal etc. in road.The operating current of receiver is provided by external power source.Which limits receiver
Moving freely property.And being powered with battery long lasting for power supply, therefore can not realize that moving freely communication aspects produces
Very big obstruction.
The content of the invention
(1) technical problem to be solved
In view of this, the present invention proposes a kind of visible light communication system of energy-autarchic, and it uses silicon photocell as can
See photoreceiver detector, opto-electronic conversion is realized while signal is received, charge a battery, for operating circuit provides electricity
Source, realizes energy-autarchic type receiver.
(2) technical scheme
The invention provides a kind of visible light communication system of energy-autarchic, it includes：
Computer, signal send modulation module, LED light source, silicon photocell, the first filter circuit, data storage, second
Filter circuit, amplification demodulator circuit, terminal device；
Wherein, the computer export transmission signal, the signal sends modulation module to be used to add the transmission signal
The LED light source is downloaded to, the light intensity signal of change is sent by the LED light source；
The silicon photocell receives the light intensity signal of the change, and converts thereof into corresponding voltage signal；It is described
First filter circuit receives the voltage signal, and filters AC compounent therein and output DC component, second filtering
Circuit receives the voltage signal, and filters DC component therein, and exports AC compounent；The first filter circuit output
DC component be used for the data storage and amplify demodulator circuit and power, the exchange point of second filter circuit output
Amount recovers primary signal after being demodulated by the amplification demodulator circuit, and the primary signal is exported to data storage storage；
The terminal device is used to receive the primary signal from the amplification demodulator circuit and the data storage.
(3) beneficial effect
The invention provides a kind of visible light wireless communication system of energy-autarchic, with silicon photocell as visible light-receiving
Machine, opto-electronic conversion is realized while signal is received, and is charged a battery, for operating circuit provides power supply.Use memory simultaneously
Data in storage battery charging process, to ensure that data will not lose.First battery can also be charged, when reaching certain electricity
Recovery system communication again.This process can be controlled to charge and communication process according to actual needs by Single-chip Controlling.The present invention fills
Divide and make use of light energy, realize the energy-autarchic of receiver.And make it possible real meaning moves freely communication.
Brief description of the drawings
Fig. 1 shows that a kind of structural framing of the visible light wireless communication system of energy-autarchic proposed by the present invention is illustrated
Figure；
Fig. 2 shows a kind of flow chart of the visible light wireless communication of energy-autarchic in the present invention.
Specific embodiment
To make the object, technical solutions and advantages of the present invention become more apparent, below in conjunction with specific embodiment, and reference
Accompanying drawing, the present invention is described in further detail.
Fig. 1 shows the structural framing schematic diagram of the visible light wireless communication system of energy-autarchic proposed by the present invention.Such as Fig. 1
Shown, the system includes：Computer 1, signal sends modulation module 2, LED direct current driving power supplies 3, LED light source 4, silicon photocell
Array 5, the first filter circuit 6 for filtering alternating voltage, the first booster converter 7, lithium battery 8, the second booster converter
9th, by monolithic processor controlled data storage 10, the second filter circuit 12 for filtering DC voltage, amplify demodulator circuit 13,
Terminal device 14；The terminal device is the electronic equipment for Based Intelligent Control, such as computer, mobile phone printer.
The transmitting terminal of the visible light wireless communication system, the output transmission signal of the computer 1, and by the signal
Sending modulation module 2 will transmit signal loading to LED, and the transmission signal is data signal, and the signal sends modulation mould
Block 2 is used to, by 0 in the data signal and 1 corresponding conversion into the change of light intensity, free space transmission is passed through by the LED4.
In receiving terminal, the silicon photocell array 5 as detector, based on photoelectricity transformation principle, the change that LED4 is exported
The light intensity signal of change is converted into corresponding voltage signal.Rear end passes through the filter circuit 12 of first filter circuit 6 and second,
The DC component of the voltage signal and AC compounent are separated, i.e., described 12 points of first filter circuit, 6 and second filter circuit
Not from voltage signal described in the silicon photocell array received, first filter circuit 6 filters the friendship in the voltage signal
Stream voltage and output DC component, second filter circuit 12 filters the DC voltage in the voltage signal and exports exchange
Component.The DC component of the output of the first filter circuit 6 is by being that the lithium battery 8 fills after the boosting of the first booster converter 7
Electricity, while being powered by monolithic processor controlled memory 10 and amplification demodulator circuit 13 described in lithium battery 8 pairs, the lithium battery 8 is defeated
The voltage for going out by exporting to data storage 10 and amplifying demodulator circuit 13 again after the boosting of the second booster converter 9.Other lithium
Battery 8 by the connected mode in figure such as 11, and directly for the data storage 10 and can also amplify demodulator circuit 13.Institute
The AC compounent of the output of the second filter circuit 12 is stated by recovering primary signal after the amplification demodulator circuit 13.It is described to amplify solution
Circuit 13 is adjusted to be connected with the data storage 10, for by the original signal data storage and reading after recovery, to ensure electricity
Loss of data is not had in the charging process of pond.First battery can also be charged, recovery system communication again when reaching certain electricity.This
Process can be controlled to charge and communication process according to actual needs by Single-chip Controlling.The last data transfer sets to terminal
It is standby, complete communication.
Visible light wireless communication system based on the energy-autarchic shown in Fig. 1, the invention allows for a kind of energy-autarchic
Visible ray wireless communications method, as shown in Fig. 2 it includes：
Step 1：Computer 1 sends transmission signal by serial ports, and the transmission signal is data signal.
Step 2：Signal sends modulation module, is transmitted after doing ON-OFF keying modulation for the data signal after to coding
To LED light source 4 so that the LED light source sends the on-off keying signal output light intensity that modulation module is exported according to the signal
Spend the optical signal of change.
Step 3：LED direct current driving power supplies 3, are that LED light source 4 is powered.
Step 4：LED signal light source 4, is high power light source, is not only lighting source, is also communication light source and energy supply light
Source.Used as communication light source, the data signal sends modulation module and is loaded on LED light source 4 by the signal, i.e. numeral letter
In number 0 with 1 corresponding conversion into light intensity change, and light is by free space transmission, realizes radio communication.As energy supply light
Source, the light of certain power that great power LED sends reaches the surface of silicon photocell array 5 by free space, is turned by photoelectricity
Change, light energy is converted into electric flux.
Step 5：Silicon photocell array 5, for receiving visible light signal and converting light energy into electric energy.The silicon photocell
Array is made up of series connection and silicon photocell in parallel, it is therefore intended that increase light intensity detection area, silicon photocell is received enough
Light energy.Based on photoelectricity transformation principle, the light intensity signal of change can be converted into corresponding voltage signal by silicon photocell,
The light intensity value that this voltage signal and silicon photocell are detected is into positive correlation.By extracting the voltage signal of alternation, can recover
Primary signal.
Step 6：First filter circuit 6, filters the alternating voltage in the voltage signal, extracts DC voltage.
Step 7：First booster converter 7, the DC voltage value for improving the output of the first filter circuit 6, and it is right
Lithium cell charging.
Step 8：Lithium battery 8, the electric energy for storing the output of silicon photocell opto-electronic conversion.Lithium battery has certain initial electricity
Amount, enables a system to work.After having illumination, while charging to it by silicon photocell array 5, supplying power for outside.
Step 9：Second booster converter 9, is the He of the data storage 10 after the voltage for improving the output of lithium battery 8
Amplify demodulator circuit 13 and the voltage for meeting job requirement is provided.
Step 10：Data storage 10, it deposits the number for amplifying the demodulation output of demodulator circuit 13 by Single-chip Controlling
According to battery charging complete starts to read data.The loss of data is not had in battery charging process to ensure.
In above-mentioned steps, can also be passed through using the voltage of silicon photocell array output using another power supply mode
Directly the data storage 10 and amplification demodulator circuit 13 are powered after first booster converter 7, and without lithium electricity
The charge and discharge process in pond 8.So can be with simplied system structure, directly using the electric energy of light conversion.
Step 11：Second filter circuit 12, for filtering the flip-flop in silicon photocell output voltage, extracts alternation electricity
Pressure signal.
Step 13：Amplify demodulator circuit and receive the alternating voltage signal from the second filter circuit 12, and recover therefrom
Go out raw electrical signal, will silicon photocell output alternating voltage signal be amplified, filter and shaping, recover original letter
Number.The output for amplifying demodulator circuit is connected with the data storage 10, and it is deposited after demodulation obtains primary signal
Storage reads out from the data storage 10 when needed to data storage 10, with ensureing battery charging process
Do not have loss of data.First battery can also be charged, recovery system communication again when reaching certain electricity.This process is by single-chip microcomputer
Control.
Step 14：The amplification demodulator circuit 13 demodulates the primary signal for obtaining can be directly output to terminal device 14,
Or the initial data of storage is read from data storage 10, complete whole communication process；The terminal device can be meter
Calculation machine, mobile phone, printer etc...
Particular embodiments described above, has been carried out further in detail to the purpose of the present invention, technical scheme and beneficial effect
Describe in detail bright, it should be understood that the foregoing is only specific embodiment of the invention, be not intended to limit the invention, it is all
Within the spirit and principles in the present invention, any modification, equivalent substitution and improvements done etc. should be included in protection of the invention
Within the scope of.
Claims (7)
1. a kind of visible light communication system of energy-autarchic, it includes：
Computer, signal send modulation module, LED light source, silicon photocell, the first filter circuit, data storage, the second filtering
Circuit, amplification demodulator circuit, terminal device；
Wherein, computer export transmission signal, the signal send modulation module be used for by the transmission signal loading to
The LED light source, the light intensity signal of change is sent by the LED light source；
The silicon photocell receives the light intensity signal of the change, and converts thereof into corresponding voltage signal；Described first
Filter circuit receives the voltage signal, and filters AC compounent therein and output DC component, second filter circuit
The voltage signal is received, and filters DC component therein, and export AC compounent；It is straight that first filter circuit is exported
Flow component is used for the data storage and amplifies demodulator circuit and power, the AC compounent of second filter circuit output by
Recover primary signal after the amplification demodulator circuit demodulation, and the primary signal is exported to data storage storage；It is described
Terminal device is used to receive the primary signal from the amplification demodulator circuit and the data storage；
The DC component of the first filter circuit output is used to be charged for energy storage device, and the energy storage device is used to be the number
Powered according to memory and amplification demodulator circuit.
2. the system as claimed in claim 1, wherein, the energy storage device is lithium battery.
3. the system as claimed in claim 1, wherein, the signal sends modulation module to be used to switch the transmission signal
LED light source is sent to after keying modulation, to control the light intensity signal of the LED light source exporting change.
4. the system as claimed in claim 1, wherein, the silicon photocell is the array of multiple silicon photocells compositions.
5. system as claimed in claim 4, it also includes：
First booster converter, its magnitude of voltage for being used for the DC component for lifting the output of the first filter circuit thinks the data
Memory and amplification demodulator circuit are powered.
6. the system as claimed in claim 1, wherein, the terminal device is computer, mobile phone, printer.
7. a kind of visible light communication method of energy-autarchic, it includes：
Computer export transmits signal；
Signal sends modulation module to be used for the transmission signal loading to LED light source, and the light of change is sent by the LED light source
Strength signal；
Silicon photocell receives the light intensity signal of the change, and converts thereof into corresponding voltage signal；
First filter circuit receives the voltage signal, and filters AC compounent therein and output DC component；Described first
The DC component of filter circuit output is used to power data storage and amplification demodulator circuit；
Second filter circuit receives the voltage signal, and filters DC component therein, and exports AC compounent；
Amplify demodulator circuit to demodulate the AC compounent of the second filter circuit output and recover primary signal, and will be described original
Signal output to data storage is stored；
Terminal device receives the primary signal from the amplification demodulator circuit and the data storage；
The voltage signal is received in first filter circuit, and is filtered AC compounent therein and is gone back after output DC component
Including：
The DC component is exported to energy storage device, is that energy storage device is powered；
Energy storage device is that the data storage and the amplification demodulator circuit are powered.
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| CN201410424782.1A CN104184519B (en) | 2014-08-26 | 2014-08-26 | A kind of visible light wireless communication system of energy-autarchic |
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| CN201410424782.1A CN104184519B (en) | 2014-08-26 | 2014-08-26 | A kind of visible light wireless communication system of energy-autarchic |
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| CN104184519B true CN104184519B (en) | 2017-06-16 |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105162516A (en) * | 2015-06-10 | 2015-12-16 | 林新 | LED lighting communication device and LED lighting communication system |
| CN104868952A (en) * | 2015-06-18 | 2015-08-26 | 北京邮电大学 | Solar cell and light-emitting diode-based function-symmetric passive full-duplex transmit-receive device in visible light communication system |
| CN105141375A (en) * | 2015-09-17 | 2015-12-09 | 天津大学 | Passive visible light communication receiver |
| CN105141025A (en) * | 2015-09-29 | 2015-12-09 | 京东方科技集团股份有限公司 | Wearable device, and charging device and charging system for the same |
| CN105471502A (en) * | 2015-12-08 | 2016-04-06 | 武汉邮电科学研究院 | Communication system and method based on visible light and solar panel |
| CN108199771A (en) * | 2018-02-11 | 2018-06-22 | 安徽工程大学 | A kind of visible light communication device |
| CN110166125A (en) * | 2019-06-26 | 2019-08-23 | 广东工业大学 | A kind of satellite communication system and method |
| CN114079605B (en) * | 2020-08-13 | 2023-05-23 | 立锜科技股份有限公司 | Communication signal demodulation device and communication signal demodulation method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101867412A (en) * | 2009-04-15 | 2010-10-20 | 中国科学院半导体研究所 | System and method for realizing communication by using semiconductor illumination |
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|---|---|---|---|---|
| KR20130116406A (en) * | 2012-03-12 | 2013-10-24 | 한국전자통신연구원 | Apparatus and method for led lighting control on visible light communication |
-
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- 2014-08-26 CN CN201410424782.1A patent/CN104184519B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101867412A (en) * | 2009-04-15 | 2010-10-20 | 中国科学院半导体研究所 | System and method for realizing communication by using semiconductor illumination |
Non-Patent Citations (1)
| Title |
|---|
| Simltaneous Reception of Visible Light Communication and Optical Energy using a Solar Cell Receiver;Sung-Man Kim et al;《2013 ICT Convergence》;20131231;参见第896-897页 * |
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