Method for utilizing LED illumination light to realize wireless local area network communication

Abstract

The invention relates to a method for utilizing LED illumination light to realize wireless local area network communication, wherein the method is applied to a wireless local area network communication system. The wireless local area network communication system comprises an access terminal photoelectric transceiver, an LED lamp set and a user terminal photoelectric transceiver. The method comprises the following steps that: the access terminal photoelectric transceiver modulates data downloaded by an access terminal router on LED lights of the LED lamp set at a data rate that is greater than 1M bps; and the user terminal photoelectric transceiver receives the modulated LED lights that are sent by the LED lamp set and then the modulated LED lights are converted into ones with a level form and frequency, wherein the level form and the frequency can be accepted by a user terminal router. According to the invention, the method has the following beneficial effects that: data transmission as well as illumination and energy conservation can be realized simultaneously; because light waves are employed to carry out data transmission, there is no electromagnetic interference of radio frequency; because the light waves can not penetrate a wall, security of data transmission is strong; and no precious radio frequency resources are occupied, so that there is no need to apply for a frequency license.

Description

technical field [0001] The invention relates to the technical field of Internet communication, in particular to a method for realizing wireless local area network communication by using LED lighting light. Background technique [0002] Using Wi-Fi technology to form a wireless local area network is currently the main Internet wireless communication solution, and the wireless data transmission rate is also getting higher and higher. In terms of optical communication, at present, infrared communication is mostly used to realize remote control and other applications. In recent years, the Free Space Optical Communication (Free Space Optical, FSO) technology developed with laser point-to-point communication has gradually started the era of optical wireless networks. , FSO is a relatively mature outdoor long-distance point-to-point laser transmission technology. [0003] On the other hand, the development of LED lighting equipment has advanced by leaps and bounds, and LED lightin...

AI Technical Summary

Problems solved by technology

At present, various countries are working hard to realize how to use energy-saving LED lights for optical wireless communication and optical wireless local area network. Unfortunately, there is no real optical wireless local area network product at present.

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