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Visible light communication system

A communication system and visible light technology, applied in the field of visible light communication, can solve problems such as no visible light communication system, achieve large application and development prospects, short optical path, and fast network speed

Inactive Publication Date: 2016-08-03
HEILONGJIANG AGRICUTURAL ENGINEARING VOCATIONAL COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Although visible light communication is a current research hotspot, there is still no visible light communication system based on embedded Linux platform, so this technology is a blank in the current market

Method used

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Embodiment Construction

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0027] figure 1 A schematic structural diagram of the visible light communication system provided by the present invention, figure 1 The solid line in the figure indicates the direction of signal transmission, and the dotted line indicates the direction of signal reception. As shown in the figure, the visible light communication system provided by the present invention includes: an embedded Linux platform 1, a signal encoding module 2, a transconductance ampli...

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Abstract

The invention discloses a visible light communication system, comprising an embedded Linux platform, a signal coding module, a transconductance amplification module, a tristate buffer module, an enable switching module, a signal amplification module, an analog-digital conversion module, a signal decoding module and an LED module which comprises an LED lamp, wherein the signal coding module is connected between the embedded Linux platform and the transconductance amplification module; the enable switching module is connected with the tristate buffer module for controlling the tristate buffer module to switch between a transmitting mode and a receiving mode; the LED module is connected with the tristate buffer module and used for controlling the LED lamp to flicker at a set frequency according to the received data transmitted from the tristate buffer module; the signal amplification module is connected between the tristate buffer module and the analog-digital conversion module; the signal decoding module is connected with the analog-digital conversion module and the embedded Linux platform; and the embedded Linux platform comprises an application layer, a transmission layer, a network layer, a data link layer and a physical layer.

Description

technical field [0001] The present invention relates to the technical field of visible light communication, in particular, to a visible light communication system. Background technique [0002] At present, radio signal transmission equipment has problems such as low efficiency and large radiation. For example, mobile phones, millions of base stations around the world help them strengthen the signal, but most of the energy is consumed in cooling, and the efficiency is only 5%. In contrast, the light bulbs used all over the world are inexhaustible, especially in China, where LED light sources are replacing traditional incandescent lamps on a large scale. Just adding a microchip to any humble LED light can turn the bulb into a wireless network transmitter. Visible light communication has the characteristics of no need to apply for spectrum, can use lighting sources to generate signals, no electromagnetic radiation, and good confidentiality. It can be mainly used in WiFi hotspo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B10/116
CPCH04B10/116
Inventor 车翼飞许洪军王巍徐伟鄢长卿张晓峰解朦孙冠男王剑
Owner HEILONGJIANG AGRICUTURAL ENGINEARING VOCATIONAL COLLEGE
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