CN104868952A - Solar cell and light-emitting diode-based function-symmetric passive full-duplex transmit-receive device in visible light communication system - Google Patents
Solar cell and light-emitting diode-based function-symmetric passive full-duplex transmit-receive device in visible light communication system Download PDFInfo
- Publication number
- CN104868952A CN104868952A CN201510341158.XA CN201510341158A CN104868952A CN 104868952 A CN104868952 A CN 104868952A CN 201510341158 A CN201510341158 A CN 201510341158A CN 104868952 A CN104868952 A CN 104868952A
- Authority
- CN
- China
- Prior art keywords
- solar cell
- visible light
- energy
- emitting diode
- solar panel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Optical Communication System (AREA)
Abstract
The invention provides a novel solar cell and light-emitting diode-based function-symmetric passive full-duplex transmit-receive device, and belongs to the technical field of optical communication. The device creatively uses solar cells as signal detection equipment, and meanwhile, uses the energy received by the solar cells to supply power to a terminal, so that symmetric energy transfer and data communication function multiplex of a transmitter and a receiver is realized; the receiving area of the solar cells is larger, and the cost is very low, so that not only are difficult problems in duplex communication solved, but also the device can realize passivity, and the moving requirement of a user can be met; in addition, the system equipment cost is greatly reduced, and productization and the practicability in real sense can be realized.
Description
Technical field
The present invention relates to the passive full duplex R-T unit based on the function symmetry of solar cell and light-emitting diode in a kind of visible light communication system, belong to optical communication (Optical Communication) technical field.
Background technology
Along with the growing tension of Radio Spectrum Resource and people are to the progressively concern of electromagnetic radiation, visible light communication technology is arisen at the historic moment.The appearance of LED, has promoted the development of visible light communication system further.
The research of current visible light communication mainly concentrates on and improves one-way transmission speed and increase in transmission range, and wherein unidirectional off-line transmission rate can reach 3.75Gbps, and transmission range also brings up to more than 10 meters from initial 20cm.
But current visible light communication system is from practical, commercialization also has distant distance, mainly because current system also has obvious defect: 1, major part is single work or half-duplex system in the system of grinding, even full duplex system also has larger gap from practical application, such as current system is substantially all adopt photodetector (PD) as receiver, up link and down link very strict to the requirement of transmitter and receiver Aligning degree, the signal simultaneously needing transmitted power larger in Terminal Design up link, practical transmitter also compares and is difficult to realize, and the down link of research at present occupies most frequency spectrum resource, 2, current receiving terminal major part is that active system and mobility are poor, 3, use PD as signal receiver, price is high.These shortcomings seriously hinder that VISIBLE LIGHT SYSTEM equipment is practical, the paces of commercialization.
Thus, we have proposed a kind of passive full duplex visible light communication system R-T unit of the novel function symmetry based on solar cell and light-emitting diode.The creationary use solar cell of this device is as signal detector, the energy simultaneously utilizing solar cell to receive is powered to terminal, achieve the Energy Transfer of transmitter and receiver symmetrical expression and the multiplexing functions of data communication, and solar cell receiving area is very large, cost is very low, so just not only solve a difficult problem for duplex communication, and device passive can be made, meet the removable demand of user; Meanwhile greatly reduce system equipment cost, the commercialization of real meaning, practical can be realized.
Compare with traditional one-way visible optical communication system, this new device is by using solar battery pas signal detector, and increasing receiving area, reduce reception difficulty, is a kind of practical full duplex work visible light communication system solution; Simultaneously due to energy-conserving character that solar cell has, this device has given full play to the advantage of systemic-function multiplexing (data communication and Energy Transfer), can implement device passive, these all greatly reduce the cost of device, improve its performance and flexibility, this device is suitable for and makes actual user side mobile device.
Summary of the invention
The present invention proposes a kind of passive full duplex visible light communication system R-T unit of the novel function symmetry based on solar cell and light-emitting diode.Described technical scheme is as follows:
A passive full duplex visible light communication system R-T unit for the novel function symmetry based on solar cell and light-emitting diode, described apparatus system framework as shown in Figure 1.
Functionally this device is mainly divided into control module, transceiver module and passive supply module.Control module controls transceiver module and passive supply module realizes systemic-function.Apparatus structure block diagram as shown in Figure 2.
Utilize solar panel to carry out acquisition of signal and direct current supply is of the present invention two large innovative points, set forth with regard to these two aspects respectively below.
The photronic spectral response of different materials as shown in Figure 3.
The wavelength of visible ray is between 0.4 ~ 0.7um, and as can be seen from the figure photocell has reasonable spectral response in visible-range; Meanwhile, the same with photodiode, the basic structure of most of solar cell is also a PN junction, can convert light signal to curtage signal.Just for solar cell, Received signal strength and switching energy provide theory support simultaneously for these.
The functional relation that photoelectric receiving arrangement receives the power of signal and its influencing factor (receiving angle, area, distance, emissive porwer) is as follows:
Wherein, h is the power of Received signal strength, and A is the area of receiving system Received signal strength, and d is the distance of emitter and receiving system, and φ is the LED light line angle of emergence, and I (φ) is for LED is along the light intensity in φ direction
for the incidence angle of receiving system,
the angle of visual field (FOV) of receiving system,
for the gain of concentrator, n
1refractive index for concentrator:
As can be seen from the above equation, along with the increase of receiving area, receiving angle also being increased to a certain degree, like this so reduce transmitting-receiving two-end aim at requirement, when sending and receiving end relaxed registration, still can ensure that receiving system can carry out normal Signal reception, data demodulates work.
One piece of 3cm
2the solar panel of size, receiving area is that 300 times of common photodetector are even more, therefore this device ideally can solve the alignment issues of the sending and receiving end that traditional visible light communication receiving system cann't be solved, improve the mobility of device, flexibility, too increase the diversity of scheme simultaneously.
Passive supply module is another important innovations point of the present invention, and this module forms primarily of two parts: solar panel and storage battery.Solar panel is except playing the effect of detection signal, luminous energy can also be changed into electric energy be in device active device (as LED, drive circuit etc.) power supply, achieve data communication and the Energy Transfer multiplexing functions of receiving terminal, in addition, the selection that control module utilizes chip microcontroller to power controls.
When system monitoring is sufficient to ambient light, control module can enter charge mode automatically, solar panel realizes opto-electronic conversion as receiving element by the photovoltaic effect of PN junction, can luminous energy be changed into electric energy while reception visible light communication signal, power to the LED of transceiver module and other devices, be charge in batteries simultaneously.
When system monitoring is not enough to ambient light, control module will enter storage battery power supply pattern.In this way, system can realize passive (or part passive), adds the mobility of device.
Compared with prior art.The invention has the advantages that:
1. this device ideally can solve the alignment issues of the sending and receiving end that traditional visible light communication receiving system cann't be solved, and improves the mobility of device, flexibility, too increases the diversity of scheme simultaneously.
2. the arrangement achieves data communication and the Energy Transfer multiplexing functions of receiving terminal, in addition, the selection that control module utilizes chip microcontroller to power controls.
3., by this device, system can realize passive (or part passive), adds the mobility of device.
Accompanying drawing explanation
Fig. 1: apparatus system configuration diagram
Fig. 2: apparatus structure block diagram
Fig. 3: different materials photocell spectral response curve
Embodiment
The content be not described in detail in this specification all belongs to the known prior art of professional and technical personnel in the field.
Obviously the foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment, replacement etc. done, all should be included in protection scope of the present invention.
Claims (1)
1. in visible light communication system based on a passive full duplex R-T unit for the function symmetry of solar cell and light-emitting diode, it is characterized in that:
(1) utilize solar panel to carry out acquisition of signal and direct current supply is of the present invention two large innovative points, it is characterized in that:
The creationary use solar cell of this device is as signal detector, and the energy simultaneously utilizing solar cell to receive is powered to terminal, achieves the Energy Transfer of transmitter and receiver symmetrical expression and the multiplexing functions of data communication.
(2) passive supply module is another important innovations point of the present invention, it is characterized in that:
This module forms primarily of two parts: solar panel and storage battery.Solar panel is except playing the effect of detection signal, luminous energy can also be changed into electric energy be in device active device (as LED, drive circuit etc.) power supply, achieve data communication and the Energy Transfer multiplexing functions of receiving terminal, in addition, the selection that control module utilizes chip microcontroller to power controls.
When system monitoring is sufficient to ambient light, control module can enter charge mode automatically, solar panel realizes opto-electronic conversion as receiving element by the photovoltaic effect of PN junction, can luminous energy be changed into electric energy while reception visible light communication signal, power to the LED of transceiver module and other devices, be charge in batteries simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510341158.XA CN104868952A (en) | 2015-06-18 | 2015-06-18 | Solar cell and light-emitting diode-based function-symmetric passive full-duplex transmit-receive device in visible light communication system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510341158.XA CN104868952A (en) | 2015-06-18 | 2015-06-18 | Solar cell and light-emitting diode-based function-symmetric passive full-duplex transmit-receive device in visible light communication system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104868952A true CN104868952A (en) | 2015-08-26 |
Family
ID=53914505
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510341158.XA Pending CN104868952A (en) | 2015-06-18 | 2015-06-18 | Solar cell and light-emitting diode-based function-symmetric passive full-duplex transmit-receive device in visible light communication system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104868952A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107453812A (en) * | 2017-09-15 | 2017-12-08 | 重庆思柏高科技有限公司 | A kind of visible light communication processing module and dispensing device |
| CN109167631A (en) * | 2018-09-19 | 2019-01-08 | 李子宪 | A kind of visible light communication device |
| CN109951229A (en) * | 2019-02-28 | 2019-06-28 | 中国矿业大学 | A kind of method of information and energy common transport in visible light communication system |
| CN111525957A (en) * | 2020-05-12 | 2020-08-11 | 浙江大学 | Visible light communication automatic capturing, tracking and aiming system based on machine vision |
| CN113890611A (en) * | 2021-10-12 | 2022-01-04 | 中国人民解放军战略支援部队信息工程大学 | Communication device and method based on natural light |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060262562A1 (en) * | 2005-05-10 | 2006-11-23 | Citizen Electronics Co. Ltd | Multifunctional-type backlight unit and information device using said backlight unit |
| CN101632245A (en) * | 2007-03-13 | 2010-01-20 | 株式会社东芝 | Receiving device for visible light communication, and visible light communication system |
| US20120231572A1 (en) * | 2010-10-13 | 2012-09-13 | Zvi Or-Bach | Method for fabricating novel semiconductor and optoelectronic devices |
| JP2014023097A (en) * | 2012-07-23 | 2014-02-03 | Nikon Corp | Electronic apparatus and system |
| CN203840343U (en) * | 2014-02-08 | 2014-09-17 | 余求是 | Window intercommunication apparatus based on infrared carrier wave transmission signals powered by magnetic induction |
| CN104168062A (en) * | 2014-08-25 | 2014-11-26 | 中国科学院半导体研究所 | Energy-self-feeding visible light wireless communication system |
| CN104184519A (en) * | 2014-08-26 | 2014-12-03 | 中国科学院半导体研究所 | Visible light wireless communication system with self-sufficient energy |
| CN104270193A (en) * | 2014-10-28 | 2015-01-07 | 长春理工大学 | Full duplex cat eye reverse modulation recovery free space laser communication system |
| CN104601237A (en) * | 2015-01-19 | 2015-05-06 | 陈宇廷 | Underground positioning system and method based on visible-light two-way communication |
| CN104601235A (en) * | 2014-12-31 | 2015-05-06 | 青岛黄海学院 | Audio signal visible light transmitting device |
-
2015
- 2015-06-18 CN CN201510341158.XA patent/CN104868952A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060262562A1 (en) * | 2005-05-10 | 2006-11-23 | Citizen Electronics Co. Ltd | Multifunctional-type backlight unit and information device using said backlight unit |
| CN101632245A (en) * | 2007-03-13 | 2010-01-20 | 株式会社东芝 | Receiving device for visible light communication, and visible light communication system |
| US20120231572A1 (en) * | 2010-10-13 | 2012-09-13 | Zvi Or-Bach | Method for fabricating novel semiconductor and optoelectronic devices |
| JP2014023097A (en) * | 2012-07-23 | 2014-02-03 | Nikon Corp | Electronic apparatus and system |
| CN203840343U (en) * | 2014-02-08 | 2014-09-17 | 余求是 | Window intercommunication apparatus based on infrared carrier wave transmission signals powered by magnetic induction |
| CN104168062A (en) * | 2014-08-25 | 2014-11-26 | 中国科学院半导体研究所 | Energy-self-feeding visible light wireless communication system |
| CN104184519A (en) * | 2014-08-26 | 2014-12-03 | 中国科学院半导体研究所 | Visible light wireless communication system with self-sufficient energy |
| CN104270193A (en) * | 2014-10-28 | 2015-01-07 | 长春理工大学 | Full duplex cat eye reverse modulation recovery free space laser communication system |
| CN104601235A (en) * | 2014-12-31 | 2015-05-06 | 青岛黄海学院 | Audio signal visible light transmitting device |
| CN104601237A (en) * | 2015-01-19 | 2015-05-06 | 陈宇廷 | Underground positioning system and method based on visible-light two-way communication |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107453812A (en) * | 2017-09-15 | 2017-12-08 | 重庆思柏高科技有限公司 | A kind of visible light communication processing module and dispensing device |
| CN109167631A (en) * | 2018-09-19 | 2019-01-08 | 李子宪 | A kind of visible light communication device |
| CN109951229A (en) * | 2019-02-28 | 2019-06-28 | 中国矿业大学 | A kind of method of information and energy common transport in visible light communication system |
| CN109951229B (en) * | 2019-02-28 | 2020-07-31 | 中国矿业大学 | Method for jointly transmitting information and energy in visible light communication system |
| CN111525957A (en) * | 2020-05-12 | 2020-08-11 | 浙江大学 | Visible light communication automatic capturing, tracking and aiming system based on machine vision |
| CN111525957B (en) * | 2020-05-12 | 2021-12-17 | 浙江大学 | Machine vision-based visible light communication automatic capturing, tracking and aiming method and system |
| CN113890611A (en) * | 2021-10-12 | 2022-01-04 | 中国人民解放军战略支援部队信息工程大学 | Communication device and method based on natural light |
| CN113890611B (en) * | 2021-10-12 | 2022-10-11 | 中国人民解放军战略支援部队信息工程大学 | Communication device and method based on natural light |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104868952A (en) | Solar cell and light-emitting diode-based function-symmetric passive full-duplex transmit-receive device in visible light communication system | |
| WO2014206130A1 (en) | Visible light energy-carrying communication system and method | |
| CN104184519B (en) | A kind of visible light wireless communication system of energy-autarchic | |
| CN202268883U (en) | White light led building visible light digital transmission system | |
| AU2015101242A4 (en) | Solar lamp integrated with audio playback device | |
| US10305318B2 (en) | Wearable device, charging device for the wearable device, and charging system | |
| CN103368645A (en) | Indoor wireless light high-speed two-way communication system | |
| CN109617613A (en) | Visible light communication device | |
| Sarwar et al. | Visible light communication using a solar-panel receiver | |
| CN202617126U (en) | 10G SFP+ (enhanced 8.5 and 10Gigabit small form factor pluggable module) LR optical module | |
| CN110113110A (en) | Underwater visible light communication device | |
| CN102624453A (en) | Cabin network system based on light-emitting diode (LED) visible light | |
| WO2021229434A1 (en) | Energy-autonomous optical wireless communication system | |
| CN102255661A (en) | Subminiature programmable optical communication module for intelligent power grid | |
| CN109326734B (en) | A kind of converter of passive visible light to infrared light | |
| CN206698224U (en) | Indoor visible light communication system | |
| CN202856741U (en) | GPON terminal with WIFI and Bluetooth functions | |
| O'Brien et al. | Gigabit optical wireless for a home access network | |
| CN205028449U (en) | Planting environment's device in monitoring warmhouse booth | |
| CN201789507U (en) | Novel RF analog SFP module | |
| CN208078738U (en) | Mobile phone light wireless charging device | |
| KR101462359B1 (en) | Apparatus and Method for Simultaneous Reception of Wireless Optical Communication Signal and Optical Power Energy using a Solar Cell | |
| CN103532624A (en) | Short-distance optical wireless voice frequency transmission device | |
| CN206293958U (en) | A kind of laser photovoltaic electric supply installation for wind direction and wind velocity monitoring station | |
| Qi et al. | Design of the indoor positioning glasses for the blind based on the LiFi technology |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150826 |