CN102624453A - Cabin network system based on light-emitting diode (LED) visible light - Google Patents
Cabin network system based on light-emitting diode (LED) visible light Download PDFInfo
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- CN102624453A CN102624453A CN2012100446437A CN201210044643A CN102624453A CN 102624453 A CN102624453 A CN 102624453A CN 2012100446437 A CN2012100446437 A CN 2012100446437A CN 201210044643 A CN201210044643 A CN 201210044643A CN 102624453 A CN102624453 A CN 102624453A
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Abstract
The invention discloses a cabin network system based on light-emitting diode (LED) visible light, which comprises an information transmitting end, a central controller, an LED lamp and a terminal receiving device. The information transmitting end is mainly used for inputting, processing and modulating satellite signals and transmitting modulated signals out in light wave mode by means of the LED lamp; and the terminal receiving device is a cell phone or a laptop of a traveler and used for receiving optical signals transmitted by the LED lamp so as to conduct photovoltaic conversion, signal amplifying processing and demodulating to recover original transmitting signals, and wireless communication of the terminal receiving device is achieved. By means of the method, the cabin network system can be applied to a cabin system, the LED lamp is used as a network access point for receiving and transmitting information, the cell phone or the laptop in a cabin can access to internet, is not subject to limit of problems of transmitting power, electromagnetic interference and the like.
Description
Technical field
The present invention relates to a kind of visible light communication system field that utilizes visible light, particularly relate to a kind of cabin network system based on the LED visible light.
Background technology
LED has just received people's attention since coming to light, though at the beginning the time, it only can be used for common pilot light because of light efficiency is too low, along with the improving constantly and optimize of LED performance, its range of application also is continuous increase; Than traditional lighting technology, LED lighting energy saving, reliable, long service life are widelyd popularize as main flow lighting technology of future generation.
At present, LED not only can be used for pilot light, but also is applied on display screen, illumination and some special applications, and its high response sensitivity and good modulating characteristic, lets it can when accomplishing illumination functions, realize radio communication.
A variety of wireless communication technologys are arranged now; Like bluetooth, Wi-Fi, WiMax and LTE etc.; But most of these wireless communication technologys are subject to shortcomings such as transmitting power, electromagnetic interference etc., such as these are related to the occasion of life as hospital and aircraft, just can not adopt radio-frequency technique.
Summary of the invention
The technical problem that the present invention mainly solves provides a kind of cabin network system based on the LED visible light; Can be applied in the cabin system; The LED lamp is as a Network Access Point; Receive and emission information, make in the cabin mobile phone or notebook computer can insert the Internet, be not subject to problems such as transmitting power, electromagnetic interference.
For solving the problems of the technologies described above; The technical scheme that the present invention adopts is: a kind of cabin network system based on the LED visible light is provided; Comprise: information transmitting terminal, central controller, LED lamp and terminal receiving equipment; Said information transmitting terminal comprises signal modulation circuit and led drive circuit, and said signal modulation circuit will be modulated into the signal that is fit to beam Propagation by the satellite-signal that the information transmitting terminal sends, and said signal is sent into led drive circuit as drive current; The said LED lamp of said central controller controls transmits the signal that modulates through light beam; Said LED lamp is arranged on nacelle top, and said terminal receiving equipment comprises optical-electrical converter, pre-amplification circuit, signal demodulating circuit and display unit, and said optical-electrical converter converts the light signal that receives to the signal of telecommunication; Behind said pre-amplification circuit, be reduced into original digital signal by said signal demodulating circuit again, and show by said display unit.
In preferred embodiment of the present invention, said led drive circuit adopts constant-current source to drive.
In preferred embodiment of the present invention, said optical-electrical converter adopts avalanche silicon diode.
In preferred embodiment of the present invention, said terminal receiving equipment is mobile phone or notebook computer.
The invention has the beneficial effects as follows: (1) the present invention has realized visible light communication in the cabin through facility LED lamp in the cabin.(2) simplicity of design of the present invention, cost is lower, and very strong practicality is arranged.
Description of drawings
Fig. 1 is that the cabin network system that the present invention is based on the LED visible light is unified the general structure sketch map of preferred embodiment;
Embodiment
Below in conjunction with accompanying drawing preferred embodiment of the present invention is set forth in detail, thereby protection scope of the present invention is made more explicit defining so that advantage of the present invention and characteristic can be easier to it will be appreciated by those skilled in the art that.
See also Fig. 1; The embodiment of the invention comprises: information transmitting terminal, central controller, LED lamp and terminal receiving equipment; The information transmitting terminal mainly is installed in driver's cabin, carries out input, processing, the modulation of satellite-signal, and by the LED lamp signal that modulates is launched with the form of light wave; The terminal receiving equipment is passenger's mobile phone or a notebook computer, is used to receive the light signal of LED lamp emission, and then carries out opto-electronic conversion, signal processing and amplifying, demodulation and recover former transmitting, and then realize terminal receiving equipment radio communication.
The information transmitting terminal comprises signal modulation circuit and led drive circuit; Signal modulation circuit will be modulated into the signal that is fit to beam Propagation by the satellite-signal that the information transmitting terminal sends; The signal that modulates is sent into led drive circuit as drive current, and the light on and off of central controller controls LED lamp make the signal that modulates transmit through light beam, and the LED lamp is arranged on nacelle top; Because signal frequency is higher, human eye can not felt the flicker of lamp.
The terminal receiving equipment comprises optical-electrical converter, pre-amplification circuit, signal demodulating circuit and display unit; Optical-electrical converter converts the visible light signal that the LED that receives sends to the signal of telecommunication; Pre-amplification circuit is used for amplifying optical-electrical converter and receives the ultra-weak electronic signal of coming; Be reduced into original digital signal by signal demodulating circuit again, and directly show by display unit.
Be different from prior art, the present invention uses LED can optical tech have been realized the network service in the cabin, has avoided problems such as transmit power limited, electromagnetic interference.。
The above is merely embodiments of the invention; Be not so limit claim of the present invention; Every equivalent structure or equivalent flow process conversion that utilizes specification of the present invention and accompanying drawing content to be done; Or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present invention.
Claims (4)
1. cabin network system based on the LED visible light; It is characterized in that; Comprise: information transmitting terminal, central controller, LED lamp and terminal receiving equipment; Said information transmitting terminal comprises signal modulation circuit and led drive circuit, and said signal modulation circuit will be modulated into the signal that is fit to beam Propagation by the satellite-signal that the information transmitting terminal sends, and said signal is sent into led drive circuit as drive current; The said LED lamp of said central controller controls transmits the signal that modulates through light beam; Said LED lamp is arranged on nacelle top, and said terminal receiving equipment comprises optical-electrical converter, pre-amplification circuit, signal demodulating circuit and display unit, and said optical-electrical converter converts the light signal that receives to the signal of telecommunication; Behind said pre-amplification circuit, be reduced into original digital signal by said signal demodulating circuit again, and show by said display unit.
2. the cabin network system based on the LED visible light according to claim 1 is characterized in that, said led drive circuit adopts constant-current source to drive.
3. the cabin network system based on the LED visible light according to claim 1 is characterized in that, said optical-electrical converter adopts avalanche silicon diode.
4. the cabin network system based on the LED visible light according to claim 1 is characterized in that said terminal receiving equipment is mobile phone or notebook computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100446437A CN102624453A (en) | 2012-02-27 | 2012-02-27 | Cabin network system based on light-emitting diode (LED) visible light |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100446437A CN102624453A (en) | 2012-02-27 | 2012-02-27 | Cabin network system based on light-emitting diode (LED) visible light |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102624453A true CN102624453A (en) | 2012-08-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100446437A Pending CN102624453A (en) | 2012-02-27 | 2012-02-27 | Cabin network system based on light-emitting diode (LED) visible light |
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| CN (1) | CN102624453A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103684595A (en) * | 2012-09-18 | 2014-03-26 | 中兴通讯股份有限公司 | Visible light communication system |
| WO2015176314A1 (en) * | 2014-05-23 | 2015-11-26 | 华为技术有限公司 | Communication system and communication method for data centre |
| WO2018010325A1 (en) * | 2016-07-13 | 2018-01-18 | 深圳喜乐航科技有限公司 | Li-fi-based wireless communication method and system using passenger cabin reading lamp |
| CN107864009A (en) * | 2017-12-22 | 2018-03-30 | 中国人民解放军战略支援部队信息工程大学 | A kind of communication system and method towards Incorporate information network |
| CN112448763A (en) * | 2019-09-03 | 2021-03-05 | Oppo广东移动通信有限公司 | Aircraft communication system, aircraft communication method and aircraft communication device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102227883A (en) * | 2008-11-28 | 2011-10-26 | 三星电子株式会社 | Apparatus for transmitting and receiving visible light communication data |
| CN102307063A (en) * | 2011-09-23 | 2012-01-04 | 天津工业大学 | Voice information notification system based on LED visible light |
-
2012
- 2012-02-27 CN CN2012100446437A patent/CN102624453A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102227883A (en) * | 2008-11-28 | 2011-10-26 | 三星电子株式会社 | Apparatus for transmitting and receiving visible light communication data |
| CN102307063A (en) * | 2011-09-23 | 2012-01-04 | 天津工业大学 | Voice information notification system based on LED visible light |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103684595A (en) * | 2012-09-18 | 2014-03-26 | 中兴通讯股份有限公司 | Visible light communication system |
| CN103684595B (en) * | 2012-09-18 | 2019-07-09 | 中兴通讯股份有限公司 | Visible light communication system |
| WO2015176314A1 (en) * | 2014-05-23 | 2015-11-26 | 华为技术有限公司 | Communication system and communication method for data centre |
| WO2018010325A1 (en) * | 2016-07-13 | 2018-01-18 | 深圳喜乐航科技有限公司 | Li-fi-based wireless communication method and system using passenger cabin reading lamp |
| CN107864009A (en) * | 2017-12-22 | 2018-03-30 | 中国人民解放军战略支援部队信息工程大学 | A kind of communication system and method towards Incorporate information network |
| CN112448763A (en) * | 2019-09-03 | 2021-03-05 | Oppo广东移动通信有限公司 | Aircraft communication system, aircraft communication method and aircraft communication device |
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Application publication date: 20120801 |