LED illumination-based visible light communication transmission method and system

Abstract

The invention relates to an LED illumination-based visible light communication transmission method and system. According to the visible light communication transmission method and system, data to be transmitted are converted into visible light digital signals through a visible light generation module; a visible light control module is adopted to set a state in which the visible light generation module can emit visible light; a visible light encoding module is used for encoding the visible light digital signals; and a visible light sending module and a visible light receiving module are adopted to transmit encoded light signals; and therefore, the visible light receiving module which communicates with a mobile terminal can send the data to be transmitted to the mobile terminal. Since light signal transmission is adopted, when confidentiality is required, as long as visible light is shielded, data transmission can be prevented from being monitored.

Description

technical field [0001] The present invention relates to communication technology, in particular to a high-secretity visible light communication transmission method and system based on LED lighting. Background technique [0002] The impact wireless technology has had on people is indisputable. Today, about 150,000 people become new wireless subscribers every day, and the number of wireless subscribers worldwide has exceeded 200 million. Since the 1970s, people have started research on wireless networks. Throughout the 1980s, with the rapid development of Ethernet LAN, the rapid popularization of smart devices, the rapid increase in the number of users, and people's demand for high-speed broadband multimedia communications, the spectrum resources of wireless access networks were tight, coupled with electromagnetic radiation interference And in an electromagnetically restricted environment or sensitive to electromagnetic signals, most of them will generate electromagnetic rad...

AI Technical Summary

Problems solved by technology

Throughout the 1980s, with the rapid development of Ethernet LAN, the rapid popularization of smart devices, the rapid increase in the number of users, and people's demand for high-speed broadband multimedia communications, the spectrum resources of wireless access networks were tight, coupled with electromagnetic radiation interference And in an electromagnetically restricted environment or sensitive to electromagnetic signals, most of them will generate electromagnetic radiation interference and confidentiality will be disclosed

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