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LED white-light communication adapter system

A technology of communication adapter and LED light source, applied in the field of visible light communication, can solve the problem that the system performance needs to be further improved, and achieve the effect of easy popularization, reasonable design and strong anti-interference ability.

Inactive Publication Date: 2015-04-29
XIAN ZHONGKEMAITE ELECTRONICS TECH EQUIP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the overall system has been realized, there is still a certain distance from the practical stage, and the performance of the system needs to be further improved

Method used

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  • LED white-light communication adapter system

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Embodiment Construction

[0020] Such as figure 1 As shown, the present invention includes a white light LED light source 1, an Ethernet port 2 for communicating with a computer terminal, and modulating and converting the message data to be transmitted in the form of a digital electrical signal sent by the computer terminal into an on-off The data format conversion module 3 of the control signal, the spread spectrum module 4 that spreads the spectrum of the ignition control signal to make it into broadband information, receives the modulated ignition control signal sent by the spread spectrum module 4 and drives the white light The LED light source 1 emits the drive module 5 of flickering frequency modulation light, the photodetector 6 that receives the flickering frequency modulation light signal and converts it into an electrical signal, performs high-pass filtering on the electrical signal output by the photodetector 6 and outputs a high frequency signal Filtering module 7, the demodulation module 8...

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Abstract

The invention discloses an LED white-light communication adapter system. The LED white-light communication adapter system comprises a white light LED light source, an Ethernet port, a data format conversion module, a spread spectrum module, a driving module, a photoelectric detector, a filtration module, a demodulation module and a dispreading module, wherein the driving module is used for receiving flicker frequency modulation light signals and converting the received flicker frequency modulation light signals into electric signals; the filtration module is used for performing high-pass filtering on the electric signal output by the photoelectric detector and outputting high-frequency signals; the demodulation module is used for demodulating the high-frequency signals into baseband signals and realizing analog-digital conversion; the dispreading module is used for dispreading the baseband signals. The LED white-light communication adapter system is reasonable in design, simple in structure and high in anti-jamming capability; the communication is carried out by utilizing LED visible light, so that integration of communication and illumination can be realized, scarce spectrum resources are not occupied, high-speed and high-volume communication services can be realized in a short distance, and the system is convenient for popularization.

Description

technical field [0001] The invention relates to the technical field of visible light communication, in particular to an LED white light communication adapter system. Background technique [0002] White LEDs use electric field luminescence and low voltage power supply. It has the characteristics of long life, high luminous efficiency, high stability, good safety, no radiation, low power consumption, shock resistance, reliability and durability, and almost combines the advantages of various traditional light sources. It is known as the new solid light source era of the 21st century. revolutionary technology. White LEDs also have the characteristics of short response time and high-speed modulation. Utilizing the high-speed response characteristics of the white light LED device, while the LED light source is illuminating, the output current of the LED device can be modulated at high speed by using the data output module and the biaser, and the information can be sent through t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B10/116
Inventor 麻树波
Owner XIAN ZHONGKEMAITE ELECTRONICS TECH EQUIP
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