Signal sending method of PLC fusion visible light communication with superposed natural light

A visible light communication and signal transmission technology, applied in the field of visible light communication, can solve problems such as deviating from energy saving and environmental protection, and achieve the effect of reducing power consumption and avoiding electromagnetic radiation

Active Publication Date: 2019-11-19
GUILIN UNIVERSITY OF TECHNOLOGY
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

[0003] However, in the existing visible light communication technology solutions, even in the daytime, the lights must be turned on to communicate, which has become a drawback of visible light communication, which also deviates from the purpose of energy saving and environmental protection

Method used

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  • Signal sending method of PLC fusion visible light communication with superposed natural light

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Embodiment

[0040] A PLC fusion visible light communication signal transmission method with superimposed natural light of the present invention, the specific implementation steps are as follows:

[0041] Establish a signal transmission device that superimposes natural light and integrates PLC with visible light communication, including: natural light collector 1, natural light modulator 6, LED modulator 2, PLC signal receiver 4, light transmitter 7, light switch 3, and LED light 5.

[0042] The optical switch 3 connects the natural light collector 1 and the PLC signal receiver 4 ; outputs to the PLC signal receiver 4 and receives the input of the natural light collector 1 .

[0043] The PLC signal receiver 4 is connected to the natural light modulator 6, the light switch 3, and the LED modulator 2; outputs to the LED modulator 2, and the LED modulator 2, and receives the input of the light switch.

[0044] The LED modulator 2 is connected with the light transmitter 7 , the LED light 5 and t...

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Abstract

The invention aims to provide a signal sending method of PLC fusion visible light communication with superposed natural light, the method comprises a signal sending device, and the device comprises anatural light collector, a natural light modulator, an LED modulator, a PLC signal receiver, a light emitter, an optical switch and an LED lamp. According to the method, two technologies of PLC powerline carrier communication and VLC visible light communication are combined, and natural light is superposed in a visible light signal of communication. According to the method, PLC signals can be extracted from power line carriers; the natural light collected by the device or the light emitted by the LED lamp is sent out according to the PLC signal; conversion into visible light communication signals, the conversion from wired power line carrier communication to wireless communication is realized, the defects that radio frequency communication has electromagnetic radiation and a lamp needs tobe turned on when visible light communication is adopted in the daytime are effectively avoided, and the method is a environment-friendly, efficient, energy-saving and safe mode from a wired channelto a wireless channel in the construction of an intelligent building communication system.

Description

technical field [0001] The invention relates to the technical field of visible light communication, in particular to a signal transmission method of PLC fusion visible light communication with superimposed natural light. Background technique [0002] Visible light communication (VLC, Visible Light Communication) is a method of using light with a wavelength visible to the human eye as a transmission medium to realize high-speed wireless optical communication of information. Visible light communication technology uses lighting as a carrier and modulates signals in visible light at the sending end On the receiving end, a photoelectric receiving device is used to receive visible light communication signals. Visible light communication has no electromagnetic radiation and is not subject to electromagnetic interference. It is a green and environmentally friendly communication method. [0003] However, in the existing visible light communication technology solutions, even in the d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B10/116H04B3/54
CPCH04B10/116H04B3/54
Inventor 邓建志陆绮荣程小辉周越菡邓卓洪
Owner GUILIN UNIVERSITY OF TECHNOLOGY
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