LED display screen indoor wireless communication system based on LiFi technology

Abstract

The invention discloses an LED display screen indoor wireless communication system based on LiFi technology The LED display screen indoor wireless communication system comprises indoor LED lamps and LED display screens disposed in the illumination range of the LED lamps. A LiFi optical signal transmitting module is disposed in each of the LED lamps, and a main control circuit, a communication signal detection circuit, a circuit for transceiving wireless signals in various wavebands, and a LiFi optical signal receiving circuit are disposed in each of the LED display screen. Each of the main control circuits is connected with the corresponding communication signal detection circuit, the corresponding circuit for transceiving the wireless signals in various wavebands, and the corresponding LiFi optical signal receiving circuit. Each of the LiFi optical signal transmitting modules is connected with a LiFi wireless communication Internet signal source. Each of the LiFi optical signal transmitting modules of the LED lamps comprises a photoelectric communication device, which comprises an LED driver, an LED lamp bead, a PIN photoelectric diode, and a trans-impedance amplifier. A LiFi base station comprises an optical link, and is used to establish connection between an access end and an Internet end, and can be used for processing the electric signals, receiving and / or transmitting the electric signals.

Description

technical field [0001] The invention relates to a visible light communication system, specifically for indoor wireless Internet access. Background technique [0002] In the prior art, the display screens of computers have all used LED display screens; the LED display screens include LED light matrix; the traditional way of connecting computers to the Internet is through wired network connections; The network card exchanges data to realize the data exchange with the Internet; on the one hand, the wiring of the wired network is relatively complicated; Inconvenience. Contents of the invention [0003] The technical problem to be solved by the present invention is to aim at the deficiencies in the above-mentioned prior art, and discloses an indoor wireless communication system for LED display screens based on LiFi technology, which can enable indoor computers to achieve wireless Internet access reliably, quickly and conveniently. [0004] In order to achieve the above object...

AI Technical Summary

Problems solved by technology

[0002] In the prior art, the display screens of computers have all used LED display screens; the LED display screens include LED light matrix; the traditional way of connecting computers to the Internet is through wired network connections; The network card exchanges data to realize the data exchange with the Internet; on the one hand, the wiring of the wired network is relatively complicated; Inconvenience

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