CN106559135A - Based on the information transceiving method of visible light communication, R-T unit and its system - Google Patents
Based on the information transceiving method of visible light communication, R-T unit and its system Download PDFInfo
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- CN106559135A CN106559135A CN201510623818.3A CN201510623818A CN106559135A CN 106559135 A CN106559135 A CN 106559135A CN 201510623818 A CN201510623818 A CN 201510623818A CN 106559135 A CN106559135 A CN 106559135A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/11—Arrangements specific to free-space transmission, i.e. transmission through air or vacuum
- H04B10/114—Indoor or close-range type systems
- H04B10/116—Visible light communication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/50—Transmitters
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/60—Receivers
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Abstract
The present invention relates to visible light communication field, discloses a kind of based on the information transceiving method of visible light communication, R-T unit and its system.In the present invention, method for sending information is comprised the steps of：Modulation step：Transmitting terminal will need the frequency modulation(PFM) of transmission signal to audio section, obtain modulated signal；Drive forwarding step：Light source is driven to be transmitted according to modulated signal.Embodiments of the present invention additionally provide a kind of message receiving method based on visible light communication, comprise the steps of：Receiving step：The detector of receiving terminal receives the optical signal from transmitting terminal, and is converted to the signal of telecommunication；Acquisition step：The signal of telecommunication after audio section gathers conversion, obtains voice data；Demodulation step：Voice data is demodulated, the information transmitted is obtained.Embodiment of the present invention allows visible light signal directly to be gathered by terminal, processes, so which can be directly received application, reduces the components and parts for participating in that visible light signal is processed.
Description
Technical field
The present invention relates to visible light communication field, more particularly to the information transmit-receive side based on visible light communication
Method, R-T unit and its system.
Background technology
With the popularization and development of wireless network, the quantity of wireless network user also rapidly rises, and is satisfaction
The growth requirement of following Large Copacity radio communication, explores using new frequency spectrum or even light spectrum resource to realize
Extensive application in broadband wireless communications, it has also become our times scope study hotspot and focus of the competition.Can
See that optic communication (Visible Light Communication, abbreviation VLC) technology is that a kind of broadband wireless connects
Enter technology, it is detectable the high speed light and shade signal of flicker to transmit by the naked eyes that light emitting diode sends
Information, but can be captured and be detected by devices such as photodetectors, while providing illumination can transmission data,
And can be with profuse frequency spectrum resource (ultra-wide spectrum frequency range about 375THz, 1THz=1000GHz)
High capacity communication service is provided.At the same time, the lighting source for communication may be mounted at Anywhere,
Reduce coverage hole.Being particularly it is not affected by complicated electromagnetic interference, for Safety of Coal Mine Production,
The informatization in the core application such as medical monitoring, seafari field acquires a special sense.Thus, may be used
See optic communication by solve the problems, such as that frequency spectrum bottleneck and coverage hole provide effective technological approaches.
In visible light communication field, it is seen that light is received by opto-electronic conversion, is converted to digital signal, most
The information carried in visible ray is obtained eventually.During whole visible light communication, need to increase more extra
Handling components, be inconvenient, particularly when terminal is moved, can be dropped using extra switching device
Low convenience.Especially as the popularization of existing Mobile portable equipment, transmission information is not necessarily traditional consolidating
Transmission means of the fixed point to fixing point, when such as receiving terminal is mobile phone, receiving position changes constantly,
Traditional signal processing converter part is an independent device, can only fixed placement somewhere, be not easy to handss
Machine receive information at any time, receives to the information of mobile phone and brings trouble, hinder visible light communication and moving
Application on portable equipment.
The content of the invention
It is an object of the invention to provide a kind of based on the information transceiving method of visible light communication, R-T unit
And its system so that visible light signal directly can be gathered by terminal, be processed, so which can be by
Application is directly received, the components and parts for participating in that visible light signal is processed are reduced.
To solve above-mentioned technical problem, embodiments of the present invention provide a kind of based on visible light communication
Method for sending information, comprises the steps of：
Modulation step：Transmitting terminal will need the frequency modulation(PFM) of transmission signal to audio section, obtain modulated signal；
Drive forwarding step：Light source is driven to be transmitted according to the modulated signal.
Embodiments of the present invention additionally provide a kind of message receiving method based on visible light communication, comprising
Following steps：
Receiving step：The detector of receiving terminal receives the optical signal from transmitting terminal, and is converted to the signal of telecommunication；
Acquisition step：The signal of telecommunication after audio section gathers conversion, obtains voice data；Demodulation step：To institute
State voice data to be demodulated, obtain the information transmitted.
Embodiments of the present invention additionally provide a kind of information based on visible light communication and send terminal, bag
Contain：
Modulation module, for the frequency modulation(PFM) by transmission signal is needed to audio section, obtains modulated signal；Drive
Dynamic sending module, for driving light source to be transmitted according to the modulated signal.
Embodiments of the present invention additionally provide a kind of information receiving terminal based on visible light communication, bag
Contain：
Receiver module, for the optical signal from transmitting terminal is received using detector, and is converted to the signal of telecommunication；
Acquisition module, for the signal of telecommunication after audio section gathers conversion, obtains voice data；Demodulation module,
For being demodulated to the voice data, the information transmitted is obtained.
Embodiments of the present invention additionally provide a kind of information transceiving device based on visible light communication, bag
Contain：Sending module and receiver module；
The sending module is further included：
Modulation submodule, for the frequency modulation(PFM) by transmission signal is needed to audio section, obtains modulated signal；
Sending submodule is driven, for driving light source to be transmitted according to the modulated signal；
The receiver module is further included：
Receiving submodule, for the optical signal from transmitting terminal is received using detector, and is converted to telecommunications
Number；Collection submodule, for the signal of telecommunication after audio section gathers conversion, obtains voice data；Demodulation
Submodule, for being demodulated to the voice data, obtains the information transmitted.
Embodiments of the present invention additionally provide a kind of information transmission system based on visible light communication, bag
Contain：Transmitting terminal and receiving terminal；
Transmitting terminal is：Information based on visible light communication described above sends terminal, or is based on described above
The information transceiving device of visible light communication；Receiving terminal is：Connect based on the information of visible light communication described above
Receive terminal, or the information transceiving device based on visible light communication described above.
In terms of existing technologies, the main distinction and its effect are embodiment of the present invention：Using sound
Frequency evidence can be by the principle handled by existing audio processing modules in terminal, the optical signal that need to will be transmitted
Frequency modulation(PFM) to audio section, be not required to increase the signal that excessive data processing module can directly to transmission
Processed so as to application can be directly received, reduced the components and parts for participating in that visible light signal is processed,
Consequently facilitating the further development of visible light communication.
As further improving, before the modulation step, can also include：Coding step：Described
The carrying out for needing transmission signal is encoded by sending end；In the modulation step, by the frequency of the signal after coding
Modulate audio section.Increase the data volume that coding step can reduce communication, improve data transmission efficiency.
As further improving, in the modulation step, if modulation adopts high order modulation, can be right
Modulation result carries out real number.After real number, the signal after modulation can be caused to be more suitable for by visible
Optical transport.
Used as further improving, sending terminal in the information of visible light communication can also include：Supply module,
Electric current for gathering the output channel that described information sends terminal upper port is described based on visible light communication
Information send terminal power.The electric current equipment of carrying out of port itself can be utilized to power, save energy,
Reduce the hardware cost of power supply.
Used as further improving, earphone interface can be four-section type headset interface.As four-part form interface exists
More popularize in Mobile portable equipment, so being conducive to the present invention's with its earphone interface as the present invention
Extensively apply.
Description of the drawings
Fig. 1 is according to the method for sending information stream based on visible light communication in first embodiment of the invention
Cheng Tu；
Fig. 2 is according to being shown based on the method for sending information of visible light communication in first embodiment of the invention
It is intended to；
Fig. 3 is according to the message receiving method stream based on visible light communication in second embodiment of the invention
Cheng Tu；
Fig. 4 is according to being shown based on the message receiving method of visible light communication in second embodiment of the invention
It is intended to；
Fig. 5, Fig. 6, Fig. 7 a and Fig. 7 b are according to logical based on visible ray in first embodiment of the invention
The schematic diagram of real number method in the method for sending information of letter；
Fig. 8 is to send terminal according to the information based on visible light communication in third embodiment of the invention to show
It is intended to；
Fig. 9 is according to being shown based on the information receiving terminal of visible light communication in third embodiment of the invention
It is intended to.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing to this
Bright each embodiment is explained in detail.However, it will be understood by those skilled in the art that
In each embodiment of the invention, in order that reader more fully understands the application and to propose many technologies thin
Section.But, even if there is no these ins and outs and many variations based on following embodiment and modification,
The each claim of the application technical scheme required for protection can also be realized.
The first embodiment of the present invention is related to a kind of method for sending information based on visible light communication.Its stream
Journey is as shown in figure 1, schematic diagram is as shown in Fig. 2 specific as follows：
The carrying out for needing transmission signal is encoded by step 101, transmitting terminal.
Specifically, in actual applications, the signal that need to be transmitted can not also be encoded and is directly transmitted,
Be particularly some simple signals or during a small amount of signal, this step can not be performed.Certainly, sending number
During according to measuring larger, coding can significantly reduce the data volume that need to be transmitted, and improve communication efficiency.
Step 102, is modulated to the visible light signal after coding.
Specifically, in modulated process, by the frequency modulation(PFM) of optical signal to audio section.What audio section referred to
It is frequency in 20Hz-20kHz.
It should be noted that high order modulation can be adopted in present embodiment, then modulation result is needed
Carry out real number.As visible light communication can utilize LED, modulating the signal to visible light wave range is carried out
Transmission, wherein, the visible ray that LED sends is wide range incoherent light, with traditional radio communication and phase
Dry optic communication is different, it is seen that optic communication can only be used for the intensity of modulated signal.Therefore visible light communication cannot
The complex signal of transmission belt phase information, is carried out after needing for complex signal to change into real number in modulation again
Transmission, can cause the signal after modulation to be more suitable for by transmission of visible light after real number.Concrete real number
The method of change can claim real number, time-domain multiplexed real number or subcarrier real number for conjugate pair.Hereinafter lead to
Cross instantiation to be further described real number method：
Time-domain multiplexed real number：Visible light communication single-carrier signal time-domain multiplexed real number method, its method are shown
It is intended to as shown in Figure 5.The method is mainly for the single-carrier modulated signal in visible light communication.Due to single load
Ripple modulated signal is one plural, with real part and imaginary part, it is impossible to be transmitted on directly modulation to visible ray.
The complex signal of single-carrier modulated is divided into into two parts of real part and imaginary part, passes through time division multiplex skill in transmission
Art, first transmits the real part of the complex symbol in a data frame in, transmits its imaginary part afterwards again.So can be with
Make the data of transmission be real number, realize the real number of plural single-carrier signal.In receiving terminal, by a number
It is combined into as plural number according to two parts of real part and imaginary part of frame in, it is possible to recover primary signal.
It is conjugated symmetrical real number：In visible light communication, OFDM (OFDM) signal is conjugated symmetrical real number
Change method, its method schematic diagram are as shown in Figure 6.The method is adjusted mainly for the OFDM in visible light communication
Signal processed.Original ofdm signal is plural number, in order to realize its real number, needs in OFDM modulation
Before anti-Fourier (IFFT) conversion, original QAM signals are carried out into the conjugation symmetrical mapping of frequency domain.So
The ofdm signal produced after Fourier transformation just all becomes real number, realizes the real number of complex signal.
Subcarrier real number：Visible light communication subcarrier real number method.The method can be common to visible ray and lead to
Single carrier and ofdm modulation signal in letter, its method schematic diagram is as shown in figs. 7 a and 7b.For can
The complex signal seen after the single-carrier modulated QAM coding of optic communication, or the anti-Fourier (IFFT) of OFDM modulation
The complex signal for obtaining is divided into real part and imaginary part two parts, then by the complex OFDM signal for generating afterwards
Cos (2 π f are multiplied by with real part respectivelycT) ,-sin (2 π f are multiplied by with imaginary partct).Again two paths of signals is added, is just obtained
Real number signal after up-conversion.Assume that the complex modulation signal for generating is s (t), after real number
Real number signal is srT the process of () so subcarrier real number is following formula (1)：
sr(t)=Re { s (t) } cos (2 π fct)-Im{s(t)}·sin(2πfct) (1)
Wherein fcIt is the mid frequency of subcarrier after up-conversion.The real number of complex signal is achieved that so.Receiving
During the demodulation of end, need the docking collection of letters number to carry out down coversion, i.e., cos (2 π f are multiplied by with reception signalcT) original can be obtained
The real part of beginning signal, and-sin (2 π f are multiplied by with reception signalcT) imaginary part of primary signal can be then obtained, then will
Real part imaginary part combines the initial data that can just recover.
Signal after modulation is carried out preequalization by step 103.
Specifically, preequalization is referred in transmission channel as the subsequent distortion for occurring of compensation to letter
Number intentional change made.
Preequalization is carried out using equalizer in present embodiment, equalizer can produce contrary with channel multi-path
Characteristic, offset the intersymbol interference that causes of time-varying multipath transmisstion characteristic of channel, be using the letter for obtaining
The process that road is estimated to compensate channel.
Step 104, drives light source to be transmitted according to the signal after preequalization.
Specifically, the light source in present embodiment can adopt LED, be driven by direct current biasing device
LED flashes, and is transmitted, has now sent out broadcast singal.
In terms of existing technologies, the main distinction and its effect are present embodiment：Using audio frequency number
According to can be by the principle handled by existing audio processing modules in terminal, by the frequency of the optical signal that need to be transmitted
Rate modulation is directly carried out to the signal of transmission by being not required to increase excessive data processing module to audio section
Process so as to application can be directly received, reduce the components and parts for participating in that visible light signal is processed, so as to
It is easy to the further development of visible light communication.And the dry of channel can be reduced using steps such as coded modulations
Disturb, improve efficiency of transmission, reduce the bit error rate, improve transmission quality.
Second embodiment of the present invention is related to a kind of message receiving method based on visible light communication.This reality
The mode of applying is the corresponding reception of the method for sending information based on visible light communication mentioned in first embodiment
Method, its flow process is as shown in figure 3, schematic diagram is as shown in figure 4, specific as follows：
Step 301, the detector of receiving terminal receive the optical signal from transmitting terminal.
Specifically, detector can be photodetector (such as PIN).In actual applications, photoelectricity
Detector can be inserted on the earphone interface of receiving terminal outward, or a module of receiving terminal is built in,
It is connected with earphone interface.In addition, APD can also be adopted except using PIN as photodetector
As photodetector.
It should be noted that, the earphone interface of connection can be four-part form interface, and concrete connection is wherein
MIC ends.
The optical signal for receiving is converted to the signal of telecommunication by step 302.
Specifically, photoelectric conversion step can be performed by PIN.
Step 303, the signal of telecommunication after audio section gathers conversion.
Specifically, the optical signal in present embodiment is transmitted by audio section, so in audio section
The signal of transmission is collected, voice data is obtained afterwards.
Whether step 304, audio data are encoded；If so, then continue executing with step 305；If
It is no, then execution step 308.
Step 305, decodes to voice data.
Specifically, if the data that need to be transmitted are simple, i.e., encoding operation need not be performed when sending, that
After collection, signal directly can be applied after the demodulation, if also performing encoding operation, with
Just compressed transmission data, then receiving terminal is accomplished by performing corresponding decoding operate after the receipt, is solved
Voice data after code.
Step 306, is demodulated to decoded voice data.
Specifically, it is voice data to be carried out and the corresponding demodulation of coding.
Step 307, whether the data after judging to demodulate are by preequalization；If so, then continue executing with step 308；
If it is not, then process ends.
Step 308, carries out post-equalization to the voice data after demodulation.
Specifically, post-equalization is and the corresponding inverse step of preequalization in first embodiment.
Divide the step of various methods above, be intended merely to describe clear, one when realizing, can be merged into
Step is split to some steps, is decomposed into multiple steps, as long as comprising identical logical relation,
All in the protection domain of this patent；To adding inessential modification in algorithm or in flow process or drawing
Enter inessential design, but do not change the core design of its algorithm and flow process all in the protection model of the patent
In enclosing.
Third embodiment of the invention is related to a kind of information based on visible light communication and sends terminal, such as Fig. 8
It is shown, comprising：
Modulation module, for the frequency modulation(PFM) by transmission signal is needed to audio section, obtains modulated signal.
Sending module is driven, for driving light source to be transmitted according to modulated signal.
Present embodiment further can also optimize, and also include：Supply module, for gathering information transmission
The electric current of the output channel of terminal upper port is that the information transmission terminal based on visible light communication is powered.
It is seen that, present embodiment is the system embodiment corresponding with first embodiment, this enforcement
Mode can be worked in coordination enforcement with first embodiment.The relevant technical details mentioned in first embodiment
In the present embodiment still effectively, in order to reduce repetition, repeat no more here.Correspondingly, this enforcement
The relevant technical details mentioned in mode are also applicable in first embodiment.
It is noted that each module involved in present embodiment is logic module, in reality
Using in, logical block can be of a physical location, or a physical location
Point, can be realized with the combination with multiple physical locations.Additionally, the innovative part in order to project the present invention,
Not by the unit less close with technical problem relation proposed by the invention is solved in present embodiment
Introduce, but there are no other units during this is not intended that present embodiment.
Four embodiment of the invention is related to a kind of information receiving terminal based on visible light communication, such as Fig. 9
It is shown, comprising：
Receiver module, for the optical signal from transmitting terminal is received using detector, and is converted to the signal of telecommunication.
Acquisition module, for the signal of telecommunication after audio section gathers conversion, obtains voice data.
Demodulation module, for being demodulated to voice data, obtains the information transmitted.
It is noted that supply module in present embodiment, can also be added, for gathering information reception
The electric current of the output channel of terminal upper port is that the information transmission terminal based on visible light communication is powered.
As second embodiment is mutually corresponding with present embodiment, therefore present embodiment can be real with second
The mode of applying is worked in coordination enforcement.The relevant technical details mentioned in second embodiment are in the present embodiment
Still effectively, the technique effect that can be reached in this second embodiment similarly may be used in the present embodiment
To realize, in order to reduce repetition, repeat no more here.Correspondingly, the correlation mentioned in present embodiment
Ins and outs are also applicable in second embodiment.
Fifth embodiment of the invention is related to a kind of information transceiving device based on visible light communication, comprising：
Sending module and receiver module.
Sending module is further included：
Modulation submodule, for the frequency modulation(PFM) by transmission signal is needed to audio section, obtains modulated signal.
Sending submodule is driven, for driving light source to be transmitted according to modulated signal.
Receiver module is further included：
Receiving submodule, for the optical signal from transmitting terminal is received using detector, and is converted to telecommunications
Number.
Collection submodule, for gathering the signal of telecommunication after conversion, obtains voice data.
Demodulation submodule, for demodulation corresponding with above-mentioned coding is carried out to voice data, obtains what is transmitted
Information.
Sixth embodiment of the invention is related to a kind of information transmission system based on visible light communication, comprising：
Transmitting terminal and receiving terminal.
Specifically, transmitting terminal is：As the information based on visible light communication in the 3rd embodiment sends
Terminal, or such as the information transceiving device based on visible light communication in the 5th embodiment.
Receiving terminal is：The information receiving terminal based on visible light communication in such as the 4th embodiment, or such as
The information transceiving device based on visible light communication in 5th embodiment.
It will be understood by those skilled in the art that the respective embodiments described above are to realize that the present invention's is concrete
Embodiment, and in actual applications, can to which, various changes can be made in the form and details, it is and not inclined
From the spirit and scope of the present invention.
Claims (15)
1. a kind of method for sending information based on visible light communication, it is characterised in that comprise the steps of：
Modulation step：Transmitting terminal will need the frequency modulation(PFM) of transmission signal to audio section, obtain modulated signal；
Drive forwarding step：Light source is driven to be transmitted according to the modulated signal.
2. the method for sending information based on visible light communication according to claim 1, its feature exist
In, before the modulation step, also including：Coding step：The transmitting terminal will need entering for transmission signal
Row coding；
In the modulation step, by the frequency modulation(PFM) of the signal after coding to audio section.
3. the method for sending information based on visible light communication according to claim 1, its feature exist
In after the modulation step and before the driving forwarding step, also comprising pre-equalization step：By institute
Stating modulated signal carries out preequalization；
In the driving forwarding step, light source is driven to be transmitted according to the signal after preequalization.
4. the method for sending information based on visible light communication according to claim 1, its feature exist
In, in the modulation step, according to high order modulation, then carrying out real number to modulation result.
5. the method for sending information based on visible light communication according to claim 4, its feature exist
In carrying out real number to the modulation result by the following method：
It is conjugated symmetrical real number, time-domain multiplexed real number or subcarrier real number.
6. a kind of message receiving method based on visible light communication, it is characterised in that comprise the steps of：
Receiving step：The detector of receiving terminal receives the optical signal from transmitting terminal, and is converted to the signal of telecommunication；
Acquisition step：The signal of telecommunication after audio section gathers conversion, obtains voice data；
Demodulation step：The voice data is demodulated, the information transmitted is obtained.
7. the message receiving method based on visible light communication according to claim 6, its feature exist
In, after the acquisition step and the demodulation step before, also comprise the steps of：
Decoding step：Judge whether the voice data is encoded；If it is determined that to be encoded, then to described
Voice data is decoded；
In the demodulation step, decoded voice data is carried out and the corresponding demodulation of the coding.
8. the message receiving method based on visible light communication according to claim 6, its feature exist
In in the demodulation step, also comprising following sub-step：
Whether the voice data after judging to demodulate is by preequalization；If it is determined that by preequalization, then to described
Voice data after demodulation carries out post-equalization, obtains the information transmitted.
9. the message receiving method based on visible light communication according to claim 6, its feature exist
In the detector of the receiving terminal is connected on the earphone interface of the receiving terminal.
10. the message receiving method based on visible light communication according to claim 6, its feature exist
In the detector is photodetector.
A kind of 11. information based on visible light communication send terminal, it is characterised in that include：
Modulation module, for the frequency modulation(PFM) by transmission signal is needed to audio section, obtains modulated signal；
Sending module is driven, for driving light source to be transmitted according to the modulated signal.
12. information based on visible light communication according to claim 11 send terminal, its feature
It is also to include：Supply module；
The supply module, for gather described information send terminal upper port output channel electric current be
The information based on visible light communication sends terminal and powers.
13. a kind of information receiving terminals based on visible light communication, it is characterised in that include：
Receiver module, for the optical signal from transmitting terminal is received using detector, and is converted to the signal of telecommunication；
Acquisition module, for the signal of telecommunication after audio section gathers conversion, obtains voice data；
Demodulation module, for carrying out to the voice data and the corresponding demodulation of the coding, is transmitted
Information.
14. a kind of information transceiving devices based on visible light communication, it is characterised in that include：Send mould
Block and receiver module；
The sending module is further included：
Modulation submodule, for the frequency modulation(PFM) by transmission signal is needed to audio section, obtains modulated signal；
Sending submodule is driven, for driving light source to be transmitted according to the modulated signal；
The receiver module is further included：
Receiving submodule, for the optical signal from transmitting terminal is received using detector, and is converted to telecommunications
Number；
Collection submodule, for gathering the signal of telecommunication after conversion, obtains voice data；
Demodulation submodule, for carrying out to the voice data and the corresponding demodulation of the coding, is passed
Defeated information.
15. a kind of information transmission systems based on visible light communication, it is characterised in that include：Transmitting terminal
And receiving terminal；
The transmitting terminal is：As the information based on visible light communication described in claim 11 or 12 is sent out
Make arrangements for his funeral end, or the information transceiving device based on visible light communication as described in claim 14；
The receiving terminal is：Information receiving terminal based on visible light communication as claimed in claim 13,
Or the information transceiving device based on visible light communication as described in claim 14.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109889262A (en) * | 2019-03-13 | 2019-06-14 | 苏州大学 | A kind of orthogonal frequency division multiplexing free space optical communication method based on wavelet transformation |
| CN111585652A (en) * | 2020-05-22 | 2020-08-25 | 徐州工程学院 | Visible light communication and energy collection system |
| CN111769871A (en) * | 2020-06-08 | 2020-10-13 | 江苏金晓电子信息股份有限公司 | Visible light communication system based on LED information screen |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102307063A (en) * | 2011-09-23 | 2012-01-04 | 天津工业大学 | Voice information notification system based on LED visible light |
| CN103986518A (en) * | 2014-06-04 | 2014-08-13 | 中国科学院半导体研究所 | Single-chip microcomputer voice frequency storing and broadcasting system and single-chip microcomputer voice frequency storing and broadcasting method based on visible light communication |
| CN204168295U (en) * | 2014-08-15 | 2015-02-18 | 徐能 | Be loaded into the infrared ray system for audio frequency transmitting and receiving of digital controlled signal |
| CN104485996A (en) * | 2015-01-05 | 2015-04-01 | 北京邮电大学 | Omnidirectional voice communication transmit-receive system design based on visible light communication and application method |
| CN104639237A (en) * | 2015-01-30 | 2015-05-20 | 华东师范大学 | Infrared stereo receiving and transmitting device |
-
2015
- 2015-09-25 CN CN201510623818.3A patent/CN106559135A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102307063A (en) * | 2011-09-23 | 2012-01-04 | 天津工业大学 | Voice information notification system based on LED visible light |
| CN103986518A (en) * | 2014-06-04 | 2014-08-13 | 中国科学院半导体研究所 | Single-chip microcomputer voice frequency storing and broadcasting system and single-chip microcomputer voice frequency storing and broadcasting method based on visible light communication |
| CN204168295U (en) * | 2014-08-15 | 2015-02-18 | 徐能 | Be loaded into the infrared ray system for audio frequency transmitting and receiving of digital controlled signal |
| CN104485996A (en) * | 2015-01-05 | 2015-04-01 | 北京邮电大学 | Omnidirectional voice communication transmit-receive system design based on visible light communication and application method |
| CN104639237A (en) * | 2015-01-30 | 2015-05-20 | 华东师范大学 | Infrared stereo receiving and transmitting device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109889262A (en) * | 2019-03-13 | 2019-06-14 | 苏州大学 | A kind of orthogonal frequency division multiplexing free space optical communication method based on wavelet transformation |
| CN111585652A (en) * | 2020-05-22 | 2020-08-25 | 徐州工程学院 | Visible light communication and energy collection system |
| CN111769871A (en) * | 2020-06-08 | 2020-10-13 | 江苏金晓电子信息股份有限公司 | Visible light communication system based on LED information screen |
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