CN202475428U

CN202475428U - Airplane communication system based on LED (Light-Emitting Diode)

Info

Publication number: CN202475428U
Application number: CN2012200866388U
Authority: CN
Inventors: 郭丰亮
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-03-09
Filing date: 2012-03-09
Publication date: 2012-10-03
Anticipated expiration: 2022-03-09

Abstract

The utility model discloses an airplane communication system based on an LED (Light-Emitting Diode). The airplane communication system comprises an information emission end, a central controller, an LED lamp and terminal receiving equipment, wherein the information emission end is mainly used for inputting, processing and modulating a satellite signal, and the modulated signal is emitted out in a light wave manner by the LED lamp; the terminal receiving equipment is a cell phone or a notebook computer of a passenger and is used for receiving a light signal emitted by the LED lamp and carrying out photoelectric conversion, signal amplification treatment and demodulation to recover the previous emission signal, so as to further realize wireless communication of the terminal receiving equipment. With the adoption of the manner, the airplane communication system can be applied to an engine room system; the LED lamp is used as a network accessing point to receive and emit information, so that the cell phone or the notebook computer in the engine room can be accessed into an internet and is not limited by problems of emission power, electromagnetic interference and the like.

Description

LED-based aircraft communications system

Technical field

The utility model relates to a kind of visible light communication system field that utilizes visible light, particularly relates to a kind of LED-based aircraft communications system.

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.

The utility model content

The technical problem that the utility model mainly solves provides a kind of LED-based aircraft communications system; 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 utility model adopts is: a kind of LED-based aircraft communications system 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 utility model, said led drive circuit adopts constant-current source to drive.

In preferred embodiment of the utility model, said optical-electrical converter adopts avalanche silicon diode.

In preferred embodiment of the utility model, said terminal receiving equipment is mobile phone or notebook computer.

The beneficial effect of the utility model is: (1) the utility model has been realized visible light communication in the cabin through facility LED lamp in the cabin.(2) the utility model simplicity of design, cost is lower, and very strong practicality is arranged.

Description of drawings

Fig. 1 is the general structure sketch map of LED-based aircraft communications system one preferred embodiment of the utility model.

Embodiment

Below in conjunction with accompanying drawing the preferred embodiment of the utility model is set forth in detail, thereby the protection range of the utility model is made more explicit defining so that advantage of the utility model and characteristic can be easier to it will be appreciated by those skilled in the art that.

See also Fig. 1; The utility model embodiment comprises: information transmitting terminal, central controller, LED lamp and terminal receiving equipment; The information transmitting terminal mainly is installed in driver's cabin; Carry out input, processing, the modulation of satellite-signal, and the signal that modulates is launched with the form of light wave by the LED lamp; 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 utility model 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 the embodiment of the utility model; Be not thus the restriction the utility model claim; Every equivalent structure or equivalent flow process conversion that utilizes the utility model specification 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 utility model.

Claims

1. LED-based aircraft communications system; 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. LED-based aircraft communications system according to claim 1 is characterized in that, said led drive circuit adopts constant-current source to drive.

3. LED-based aircraft communications system according to claim 1 is characterized in that, said optical-electrical converter adopts avalanche silicon diode.

4. LED-based aircraft communications system according to claim 1 is characterized in that, said terminal receiving equipment is mobile phone or notebook computer.