CN104104448A - Visible light communication receiving and transmitting integrated device based on Ethernet - Google Patents

Visible light communication receiving and transmitting integrated device based on Ethernet Download PDF

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Publication number
CN104104448A
CN104104448A CN201410337938.2A CN201410337938A CN104104448A CN 104104448 A CN104104448 A CN 104104448A CN 201410337938 A CN201410337938 A CN 201410337938A CN 104104448 A CN104104448 A CN 104104448A
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China
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signal
electric signal
processing module
telecommunication
ethernet
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CN201410337938.2A
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Chinese (zh)
Inventor
周雷
吕振彬
宋哲
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上海航天电子通讯设备研究所
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Priority to CN201410337938.2A priority Critical patent/CN104104448A/en
Publication of CN104104448A publication Critical patent/CN104104448A/en

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Abstract

The invention provides a visible light communication receiving and transmitting integrated device based on the Ethernet. The visible light communication receiving and transmitting integrated device based on the Ethernet comprises an Ethernet interface circuit, an FPGA control unit, a transmitter electric signal processing module, a receiver electric signal processing module, an LED light source, a photodiode and a power module. The transmitter electric signal processing module and the receiver electric signal processing module share the FPGA control unit and the Ethernet interface circuit. An original transmitting device and an original receiving device of visible light communication are integrated into one device, and thus the device can simultaneously transmit and receive visible light signals. Meanwhile, the bidirectional communication function of the FPGA control unit and the Ethernet interface circuit in equipment is fully used by the device, and the size of the equipment is effectively reduced. Compared with the mode of using the transmitting device and the receiving device for conducting visible light communication previously, the visible light communication receiving and transmitting integrated device based on the Ethernet is more convenient to use in the using process.

Description

A kind of visible light communication transceiving integrated device based on Ethernet
Technical field
The present invention relates to visible light communication equipment technical field, be specifically related to a kind of visible light communication transceiving integrated device based on Ethernet.
Background technology
Along with developing rapidly of LED industry, the visible light communication technology based on LED lighting apparatus is in the opportune moment by industrialization." green illumination " taking LED light source as main body has the feature of protection of the environment, energy savings; and LED have low, low in energy consumption, life-span of the voltage of use long, be easy to miniaturization etc. to modern society and useful many effects thereof, meet the theory of human social.
Utilize light-emitting diode (LED) to convert electrical energy into luminous energy, send the high speed light and shade flash signal being invisible to the naked eye and carry out transmission information, only the wire device of high-speed Internet need be connected on lighting device, inserting attaching plug can use.Compared with current wireless lan (wlan), visible light communication has communication speed fast (following transmission speed may exceed optical fiber communication), safe (curtain and wall etc. cover light and can prevent information leakage), uses multiple devices not affect communication speed, in some special space environments, as also used in hospital He on aircraft, and can not disturb the advantages such as other important electronic instruments, therefore visible light communication will have the very large market space in future.
But mainly concentrating on, current visible light communication equipment develops visible light communication transmitting apparatus, or visible light communication receiving equipment, and and the visible ray duplex communication equipment of unrealized transceiver, realize subscriber equipment and still need further solution by the information interaction of visible ray and the Internet.
Summary of the invention
The object of the present invention is to provide a kind of visible light communication transceiving integrated device based on Ethernet, to solve the problem that the transmitting apparatus of existing visible light communication equipment and receiving equipment is integrated into the device of transceiver.
Another object of the present invention is to provide a kind of visible light communication transceiving integrated device based on Ethernet, only can carry out the problem of simplex to solve existing visible light communication equipment.
For achieving the above object; the invention provides a kind of visible light communication transceiving integrated device based on Ethernet, comprise ethernet interface circuit, FPGA control unit, transmitter Electric signal processing module, receiver Electric signal processing module, LED light source, photodiode and power module; Described power module is respectively described FPGA control unit, ethernet interface circuit, transmitter Electric signal processing module and receiver Electric signal processing module power supply is provided; Wherein:
When this device sends data, after the data flow of described FPGA control unit by described ethernet interface circuit receiving computer transmission, be that digital electric signal is transferred to described transmitter Electric signal processing module by Data Stream Processing, described transmitter Electric signal processing module is carried on described LED light source and exports after digital electric signal is processed;
When this device receives data, described photodiode receiving optical signals also converts current signal transfer to described receiver Electric signal processing module, by described receiver Electric signal processing module, current signal is processed into datagram number and sends to described FPGA control unit, the datagram receiving number is treated to data flow by described FPGA control unit, and by described ethernet interface circuit by data stream transmitting after treatment to computer.
Preferably, described FPGA control unit is by the data flow of described ethernet interface circuit receiving computer transmission, data flow is separated to mac frame, establishment physical frame and coding and be treated as after digital electric signal, send to described transmitter Electric signal processing module.
Preferably, described transmitter Electric signal processing module comprises transmitter front ends analog module and direct current (DC) bias device module; Described transmitter Electric signal processing module receives after described digital electric signal, is treated as the signal of telecommunication of amplification through described transmitter front ends analog module, and the signal of telecommunication of amplification carries out the signal of telecommunication of bias voltage processing output bias through direct current (DC) bias device module.
Preferably, the signal of telecommunication of described bias voltage is directly carried on described LED light source, by described LED light source, the signal of telecommunication of bias voltage is converted to light signal output.
Preferably, described transmitter front ends analog module comprises input stage network impedance match circuit, mini power amplifying circuit, interstage impedance match circuit, medium-sized power amplification circuit, output stage network impedance match circuit and a capacitor, digital electric signal inputs to described mini power amplifying circuit and once amplifies after described input stage network impedance match circuit carries out Input matching processing, signal after once amplifying inputs to described interstage impedance match circuit and carries out centre matching treatment, signal after middle matching treatment inputs to described medium-sized power amplification circuit and carries out secondary amplification, signal after secondary amplifies inputs to described output stage network impedance match circuit and carries out output matching processing, the output matching signal of telecommunication after treatment is filtered direct current processing through described capacitive filter, filter direct current is exported the signal of telecommunication of described amplification after processing.
Preferably, described direct current (DC) bias device module comprises an electric capacity, an inductance and an adjustable constant-current source; The signal of telecommunication of described transmitter front ends analog module amplification after treatment is inputted described electric capacity, the ac signal of output filter direct current after described electric capacity filter direct current, the direct current signal of the described adjustable constant-current source output direct current signal that output filter exchanges after described inductance filter exchanges, the direct current signal stack that the ac signal of described filter direct current exchanges with described filter, signal after stack is the signal of telecommunication of described bias voltage, and exports the signal of telecommunication of this bias voltage.
Preferably, the light signal in described photodiode space exploration, and convert described light signal to current signal and send to described receiver Electric signal processing module.
Preferably, described receiver Electric signal processing module comprises trans-impedance amplifier, capacitive filter, high-gain amplifier, equalizing circuit, clock recovery circuitry, comparison circuit and level shifting circuit; described receiver Electric signal processing module receives the current signal from described photodiode, described current signal inputs to after described trans-impedance amplifier is converted to voltage signal and exports, described voltage signal inputs to capacitive filter and filters the voltage signal of exporting a filter direct current after direct current is processed, the voltage signal of described filter direct current inputs to described the first high-gain amplifier and once amplifies the signal of telecommunication that rear output is once amplified, the signal of telecommunication once amplifying inputs to described equalizing circuit to carry out exporting spread-spectrum signal after spread processing, described spread-spectrum signal inputs to described the second high-gain amplifier to carry out after secondary amplifies exporting the signal of telecommunication that secondary amplifies, the signal of telecommunication that secondary amplifies inputs to described clock recovery circuitry and carries out the signal of telecommunication that output clock recovers after clock recovery, the signal of telecommunication of clock recovery inputs to described comparison circuit and adjudicates and obtain decision signal, described decision signal inputs to described level shifting circuit to carry out after range-adjusting is processed exporting digital electric signal, and this digital electric signal is sent to described FPGA control unit.
Preferably, described FPGA control unit receives digital electric signal and decodes, separates after frame is processed into data flow and sends to described ethernet interface circuit, and data flow is sent to computer by described ethernet interface circuit.
Preferably, described power module provides required stabilized power supply for being respectively described FPGA control unit, ethernet interface circuit, transmitter Electric signal processing module and receiver Electric signal processing module.
Preferably, described FPGA control unit and the ethernet interface circuit of the common use of described transmitter Electric signal processing module and receiver Electric signal processing module.
Visible light communication transceiving integrated device based on Ethernet provided by the invention, by transmitting apparatus and the receiving equipment of visible light communication are originally integrated in a device, make it not only can carry out the transmission of visible light signal but also can carry out the reception of visible light signal, changed visible light communication equipment in the past and only can carry out the problem of simplex.And transmitter Electric signal processing module and receiver Electric signal processing module share the mode of FPGA control unit and ethernet interface circuit, both take full advantage of the function of the two-way communication of FPGA control unit in equipment and ethernet interface circuit, effectively reduced again the volume of equipment.Visible light communication transceiving integrated device based on Ethernet of the present invention is compared and is used two equipment of sending and receiving to carry out the mode of visible light communication in the past, more convenient in use procedure.
 
Brief description of the drawings
Fig. 1 is visible light communication (VLC) the transceiving integrated device overall construction drawing based on Ethernet of the present invention;
Fig. 2 is apparatus of the present invention transmitted signal process schematic diagram;
Fig. 3 is the transmitter front ends analog module cut-away view of apparatus of the present invention;
Fig. 4 is the adjustable constant-current source module diagram of the one of apparatus of the present invention embodiment;
Fig. 5 is that apparatus of the present invention receive signal process schematic diagram;
Fig. 6 is the receiver front end analog module cut-away view of apparatus of the present invention.
Embodiment
For the present invention is described better, now in conjunction with the preferred embodiments, and coordinate accompanying drawing to elaborate to the present invention, specific as follows:
As shown in Figure 1, the visible light communication transceiving integrated device based on Ethernet provided by the invention comprises: ethernet interface circuit, FPGA control unit, transmitter Electric signal processing module, receiver Electric signal processing module, LED light source, photodiode and power module.Wherein, when this device sends data, after the data flow that FPGA control unit transmits by ethernet interface circuit receiving computer, be that digital electric signal is transferred to transmitter Electric signal processing module by Data Stream Processing, transmitter Electric signal processing module is carried on LED light source and exports after digital electric signal is processed.When this device receives data, photodiode receiving optical signals also converts current signal input receiver Electric signal processing module to, by receiver Electric signal processing module, current signal is processed into datagram number and sends to FPGA control unit module to process, FPGA control unit module by ethernet interface circuit module by data stream transmitting after treatment to computer.
Civil power is directly carried on power module, through four voltage modules, power supply is offered to ethernet interface circuit, FPGA control unit, transmitter Electric signal processing module and receiver Electric signal processing module respectively by power module.
The receiving and sending equipment of visible light communication is carried out integrated treatment by the present embodiment institute generator, visible light communication receiving and sending equipment is integrated in same device, make the optical communication equipment that can only carry out simplex originally can carry out duplex communication, expand the use function of equipment, and reduced the volume of two equipment originally.
Preferably, as shown in Figure 2, utilize apparatus of the present invention to send when data, first by the computer in network, the data flow of information to be passed sent to ethernet interface circuit, by ethernet interface circuit by forwarding data flow to FPGA control unit.FPGA control unit is first separated mac frame processing by the data flow receiving, and again to set up physical frame be that optical communication is ready; The processing of encoding subsequently, is specially and converts Manchester differential signal in Ethernet to be applicable to optical signal transmission nonreturn to zero code NRZ; Be digital electric signal by above step by the Data Stream Processing in computer network and the digital electric signal of handling well is sent to transmitter Electric signal processing module.
As shown in Fig. 2 dotted line frame, transmitter Electric signal processing module comprises transmitter front ends analog module and direct current (DC) bias device module.Transmitter Electric signal processing module receives after digital electric signal, by transmitter front ends analog module, digital electric signal is treated as to the signal of telecommunication of amplification, the signal of telecommunication of this amplification carries out the signal of telecommunication of bias voltage processing output bias again through direct current (DC) bias device module.It is mainly by original ac signal and DC signal stack that bias voltage is processed, there is light and shade to change to avoid directly ac signal being carried in to the light of exporting after LED light source, and the LED light that ensures LED light source output possesses enough brightness, be convenient to the transmission of light signal, do not affect again the illuminating effect of LED trimmed book body.The bias voltage signal of telecommunication after treatment is directly carried on LED light source, converts electrical signals to light signal output by LED light source.
Preferably, transmitter front ends analog module comprises input stage network impedance match circuit, mini power amplifying circuit, interstage impedance match circuit, medium-sized power amplification circuit, output stage network impedance match circuit and a capacitive filter, as shown in Figure 3.In the time of digital electric signal input transmitter front ends analog module, first by the input stage network impedance match circuit of this module, digital electric signal is carried out to Input matching processing, to reduce or to avoid the propagation loss of the signal of telecommunication.Input matching is inputted mini power amplifying circuit by the signal of telecommunication after processing and is once amplified, signal of telecommunication input interstage impedance match circuit after once amplifying carries out centre matching treatment, the signal of telecommunication after middle matching treatment is inputted medium-sized power amplification circuit and is carried out secondary amplification, signal of telecommunication input and output level network impedance match circuit after secondary amplifies carries out output matching processing, the output matching signal of telecommunication after treatment is filtered direct current processing through capacitive filter, and filter direct current is exported the signal of telecommunication amplifying after processing.The power loss that the impedance matching processing of three times can reduce signal effectively while transmitting between different circuit modules, makes the signal of telecommunication keep transmitting efficiently with traveling-wave mode.
Preferably, direct current (DC) bias device module comprises an electric capacity, an inductance and an adjustable constant-current source, as shown in Figure 2.The signal of telecommunication of transmitter front ends analog module amplification after treatment is inputted this electric capacity, and the signal of telecommunication of filtering the amplification of direct current through this electric capacity becomes the signal of telecommunication of described bias voltage and exports with the direct current signal stack of filtering the adjustable constant-current source exchanging through this inductance.Wherein, adjustable constant-current source is any one adjustable power supply that galvanic current signal can be provided, and the adjustable constant-current source of the embodiment of the present invention adopts structure as shown in Figure 4, but not as limit.This adjustable constant-current source comprises a constant-current source chip, and the corresponding peripheral circuit of arranging in pairs or groups, V iNfor the power input of this adjustable constant-current source, the source electrode of CMOS pipe Q1 is output, and galvanic current signal is provided.
Apparatus of the present invention are receiving when data, as shown in Figure 5, first by the light signal in photodiode space exploration, and convert light signal to current signal and send to receiver Electric signal processing module.Subsequently, photodiode is by the signal of telecommunication input receiver Electric signal processing module after conversion, become data-signal to send to FPGA control unit module to process Electric signal processing by receiver Electric signal processing module, FPGA control unit module is transferred to computer by ethernet interface circuit module by traffic spike after processing.
Preferably, as shown in Figure 6, receiver Electric signal processing module comprises trans-impedance amplifier, capacitive filter, high-gain amplifier, equalizing circuit, clock recovery circuitry, comparison circuit and level shifting circuit.When work, receiver Electric signal processing module receives the current signal from photodiode, current signal inputs to after trans-impedance amplifier is converted to voltage signal and exports, voltage signal inputs to capacitive filter and filters the voltage signal of exporting a filter direct current after direct current is processed, the voltage signal of filter direct current inputs to the first high-gain amplifier and once amplifies the signal of telecommunication that rear output is once amplified, the signal of telecommunication once amplifying inputs to equalizing circuit to carry out exporting spread-spectrum signal after spread processing, spread-spectrum signal inputs to the second high-gain amplifier to carry out after secondary amplifies exporting the signal of telecommunication that secondary amplifies, the signal of telecommunication that secondary amplifies inputs to clock recovery circuitry and carries out the signal of telecommunication that output clock recovers after clock recovery, the signal of telecommunication of clock recovery inputs to comparison circuit and adjudicates and obtain decision signal, decision signal inputs to level shifting circuit to carry out after range-adjusting is processed exporting digital electric signal, and this digital electric signal is sent to described FPGA control unit.
FPGA control unit receives digital electric signal and decodes, separates frame, the nonreturn to zero code NRZ using while transmission by optical communication is processed into the Manchester code in computer network, added frame head postamble code while removing optical communication, and data-signal is packaged into mac frame form, data flow after treatment sends to ethernet interface circuit, by ethernet interface circuit, data flow is sent to computer.
Its transmitter Electric signal processing module of visible light communication transceiving integrated device based on Ethernet of the present invention and receiver Electric signal processing module are used FPGA control unit and ethernet interface circuit jointly.By the transmitter and receiver in traditional visible light communication equipment being integrated in to the inside of a transceiving integrated device, the visible light communication equipment that makes script only can carry out simplex becomes the visible light communication equipment of duplex communication, this device not only can utilize visible ray to send data, can also receive the data from transmission of visible light simultaneously.And transmitter Electric signal processing module and receiver Electric signal processing module share FPGA control unit and ethernet interface circuit, by two integration of equipments of sending and receiving originally in an equipment, both take full advantage of FPGA control unit and ethernet interface circuit in equipment, effectively reduced again the volume of equipment.Meanwhile, the device of a transceiver compare in two receiving and sending equipment use procedures also more convenient.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited to this, in the technical scope that any those skilled in the art discloses in the present invention; the distortion that the present invention is done or replacement, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of described claim.

Claims (11)

1. the visible light communication transceiving integrated device based on Ethernet; it is characterized in that, comprise ethernet interface circuit, FPGA control unit, transmitter Electric signal processing module, receiver Electric signal processing module, LED light source, photodiode and power module; Described power module is respectively described FPGA control unit, ethernet interface circuit, transmitter Electric signal processing module and receiver Electric signal processing module power supply is provided; Wherein:
When this device sends data, after the data flow of described FPGA control unit by described ethernet interface circuit receiving computer transmission, be that digital electric signal is transferred to described transmitter Electric signal processing module by Data Stream Processing, described transmitter Electric signal processing module is carried on described LED light source and exports after digital electric signal is processed;
When this device receives data, described photodiode receiving optical signals also converts current signal transfer to described receiver Electric signal processing module, by described receiver Electric signal processing module, current signal is processed into datagram number and sends to described FPGA control unit, the datagram receiving number is treated to data flow by described FPGA control unit, and by described ethernet interface circuit by data stream transmitting after treatment to computer.
2. the visible light communication transceiving integrated device based on Ethernet according to claim 1, it is characterized in that, described FPGA control unit is by the data flow of described ethernet interface circuit receiving computer transmission, data flow is separated to mac frame, establishment physical frame and coding and be treated as after digital electric signal, send to described transmitter Electric signal processing module.
3. the visible light communication transceiving integrated device based on Ethernet according to claim 1, is characterized in that, described transmitter Electric signal processing module comprises transmitter front ends analog module and direct current (DC) bias device module;
Described transmitter Electric signal processing module receives after described digital electric signal, is treated as the signal of telecommunication of amplification through described transmitter front ends analog module, and the signal of telecommunication of amplification carries out the signal of telecommunication of bias voltage processing output bias through direct current (DC) bias device module.
4. the visible light communication transceiving integrated device based on Ethernet according to claim 3, is characterized in that, the signal of telecommunication of described bias voltage is directly carried on described LED light source, by described LED light source, the signal of telecommunication of bias voltage is converted to light signal output.
5. the visible light communication transceiving integrated device based on Ethernet according to claim 3, it is characterized in that, described transmitter front ends analog module comprises input stage network impedance match circuit, mini power amplifying circuit, interstage impedance match circuit, medium-sized power amplification circuit, output stage network impedance match circuit and a capacitor;
Digital electric signal inputs to described mini power amplifying circuit and once amplifies after described input stage network impedance match circuit carries out Input matching processing, signal after once amplifying inputs to described interstage impedance match circuit and carries out centre matching treatment, signal after middle matching treatment inputs to described medium-sized power amplification circuit and carries out secondary amplification, signal after secondary amplifies inputs to described output stage network impedance match circuit and carries out output matching processing, the output matching signal of telecommunication after treatment is filtered direct current processing through described capacitive filter, filter direct current is exported the signal of telecommunication of described amplification after processing.
6. the visible light communication transceiving integrated device based on Ethernet according to claim 3, is characterized in that, described direct current (DC) bias device module comprises an electric capacity, an inductance and an adjustable constant-current source;
The signal of telecommunication of described transmitter front ends analog module amplification after treatment is inputted described electric capacity, the ac signal of output filter direct current after described electric capacity filter direct current, the direct current signal of the described adjustable constant-current source output direct current signal that output filter exchanges after described inductance filter exchanges, the direct current signal stack that the ac signal of described filter direct current exchanges with described filter, signal after stack is the signal of telecommunication of described bias voltage, and exports the signal of telecommunication of this bias voltage.
7. the visible light communication transceiving integrated device based on Ethernet according to claim 1, it is characterized in that, light signal in described photodiode space exploration, and convert described light signal to current signal and send to described receiver Electric signal processing module.
8. the visible light communication transceiving integrated device based on Ethernet according to claim 1, it is characterized in that, described receiver Electric signal processing module comprises trans-impedance amplifier, capacitive filter, high-gain amplifier, equalizing circuit, clock recovery circuitry, comparison circuit and level shifting circuit;
Described receiver Electric signal processing module receives the current signal from described photodiode, described current signal inputs to after described trans-impedance amplifier is converted to voltage signal and exports, described voltage signal inputs to capacitive filter and filters the voltage signal of exporting a filter direct current after direct current is processed, the voltage signal of described filter direct current inputs to described the first high-gain amplifier and once amplifies the signal of telecommunication that rear output is once amplified, the signal of telecommunication once amplifying inputs to described equalizing circuit to carry out exporting spread-spectrum signal after spread processing, described spread-spectrum signal inputs to described the second high-gain amplifier to carry out after secondary amplifies exporting the signal of telecommunication that secondary amplifies, the signal of telecommunication that secondary amplifies inputs to described clock recovery circuitry and carries out the signal of telecommunication that output clock recovers after clock recovery, the signal of telecommunication of clock recovery inputs to described comparison circuit and adjudicates and obtain decision signal, described decision signal inputs to described level shifting circuit to carry out after range-adjusting is processed exporting digital electric signal, and this digital electric signal is sent to described FPGA control unit.
9. the visible light communication transceiving integrated device based on Ethernet according to claim 1, it is characterized in that, described FPGA control unit receives digital electric signal and decodes, separates after frame is processed into data flow and sends to described ethernet interface circuit, and data flow is sent to computer by described ethernet interface circuit.
10. the visible light communication transceiving integrated device based on Ethernet according to claim 1, it is characterized in that, described power module provides required stabilized power supply for being respectively described FPGA control unit, ethernet interface circuit, transmitter Electric signal processing module and receiver Electric signal processing module.
The 11. visible light communication transceiving integrated devices based on Ethernet according to claim 1, it is characterized in that described FPGA control unit and the ethernet interface circuit of the common use of described transmitter Electric signal processing module and receiver Electric signal processing module.
CN201410337938.2A 2014-07-16 2014-07-16 Visible light communication receiving and transmitting integrated device based on Ethernet CN104104448A (en)

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105227240A (en) * 2015-10-30 2016-01-06 上海航天测控通信研究所 Based on the industrial communication systems of visible ray
CN105680942A (en) * 2016-03-15 2016-06-15 王基民 Underground visible light wireless communication system
CN106027147A (en) * 2016-04-29 2016-10-12 东北电力大学 Internet-based visible light receiving-transmitting all-in-one system
CN107276670A (en) * 2017-05-02 2017-10-20 南京邮电大学 A kind of intelligent visible light communication system of environmental monitoring and method
CN107659357A (en) * 2017-09-20 2018-02-02 上海亚明照明有限公司 A kind of electronic equipment
CN107733527A (en) * 2017-10-23 2018-02-23 南开大学 A kind of Ethernet visible ray adaptor plate level scheme based on 300Mbps visible light communications
CN108306681A (en) * 2015-11-30 2018-07-20 长城汽车股份有限公司 A kind of wireless telecommunication system and method
CN110310549A (en) * 2019-07-01 2019-10-08 大连海事大学 A kind of visible light communication, positioning research and teaching integrated experimental device
CN110474692A (en) * 2019-08-28 2019-11-19 深圳市科楠科技开发有限公司 A kind of optical communication equipment, optical communication system, data transmission method and storage medium

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1669249A (en) * 2002-07-15 2005-09-14 特里奎恩特技术控股公司 Method and apparatus for directly modulating a laser diode using multi-stage laser driver circuity
US20100067916A1 (en) * 2008-09-12 2010-03-18 Katsuyoshi Suzuki System for visible light communication using single light source
CN102324974A (en) * 2011-07-08 2012-01-18 北京邮电大学 A kind of visible light communication system and device thereof based on the OCDMA technology
CN102394689A (en) * 2011-02-25 2012-03-28 中国科学院上海微系统与信息技术研究所 Terahertz wave-based method and system for implementing audio radio communication link
CN102394848A (en) * 2011-02-25 2012-03-28 中国科学院上海微系统与信息技术研究所 Method and device for generating audio modulation THz wave
CN102811091A (en) * 2012-07-06 2012-12-05 北京邮电大学 Visible light communication-based broadband access device and method
CN102983907A (en) * 2012-12-06 2013-03-20 哈尔滨工业大学 Visible light communication based data transmission system between computer and visible light transceiver
CN103825656A (en) * 2013-12-10 2014-05-28 上海航天测控通信研究所 Visible light communication system based on TCP/IP and method

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1669249A (en) * 2002-07-15 2005-09-14 特里奎恩特技术控股公司 Method and apparatus for directly modulating a laser diode using multi-stage laser driver circuity
US20100067916A1 (en) * 2008-09-12 2010-03-18 Katsuyoshi Suzuki System for visible light communication using single light source
CN102394689A (en) * 2011-02-25 2012-03-28 中国科学院上海微系统与信息技术研究所 Terahertz wave-based method and system for implementing audio radio communication link
CN102394848A (en) * 2011-02-25 2012-03-28 中国科学院上海微系统与信息技术研究所 Method and device for generating audio modulation THz wave
CN102324974A (en) * 2011-07-08 2012-01-18 北京邮电大学 A kind of visible light communication system and device thereof based on the OCDMA technology
CN102811091A (en) * 2012-07-06 2012-12-05 北京邮电大学 Visible light communication-based broadband access device and method
CN102983907A (en) * 2012-12-06 2013-03-20 哈尔滨工业大学 Visible light communication based data transmission system between computer and visible light transceiver
CN103825656A (en) * 2013-12-10 2014-05-28 上海航天测控通信研究所 Visible light communication system based on TCP/IP and method

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105227240A (en) * 2015-10-30 2016-01-06 上海航天测控通信研究所 Based on the industrial communication systems of visible ray
CN108306681A (en) * 2015-11-30 2018-07-20 长城汽车股份有限公司 A kind of wireless telecommunication system and method
CN105680942A (en) * 2016-03-15 2016-06-15 王基民 Underground visible light wireless communication system
CN106027147A (en) * 2016-04-29 2016-10-12 东北电力大学 Internet-based visible light receiving-transmitting all-in-one system
CN107276670A (en) * 2017-05-02 2017-10-20 南京邮电大学 A kind of intelligent visible light communication system of environmental monitoring and method
CN107276670B (en) * 2017-05-02 2019-08-02 南京邮电大学 A kind of environmental monitoring intelligence visible light communication system and method
CN107659357A (en) * 2017-09-20 2018-02-02 上海亚明照明有限公司 A kind of electronic equipment
CN107733527A (en) * 2017-10-23 2018-02-23 南开大学 A kind of Ethernet visible ray adaptor plate level scheme based on 300Mbps visible light communications
CN110310549A (en) * 2019-07-01 2019-10-08 大连海事大学 A kind of visible light communication, positioning research and teaching integrated experimental device
CN110474692A (en) * 2019-08-28 2019-11-19 深圳市科楠科技开发有限公司 A kind of optical communication equipment, optical communication system, data transmission method and storage medium
CN110474692B (en) * 2019-08-28 2021-02-26 深圳市科楠科技开发有限公司 Optical communication device, optical communication system, data transmission method and storage medium

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