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Visible light communication system combined with power line communication and method for optimizing cell architecture

A technology of visible light communication and power line communication, which is applied in the field of visible light communication, can solve problems affecting transmission performance, etc., and achieve the effect of improving transmission performance, strong applicability, and high data transmission rate

Inactive Publication Date: 2015-10-21
TONGJI UNIV
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AI Technical Summary

Problems solved by technology

In such a network environment, if a visible light transceiver terminal is in motion, it will face frequent handovers, which will affect transmission performance

Method used

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  • Visible light communication system combined with power line communication and method for optimizing cell architecture

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Embodiment Construction

[0041] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0042] Such as figure 1 As shown, a visible light communication system combined with power line communication is characterized in that it includes a sequentially connected data source 1, broadband access and routing equipment 2, a first power modem 3, and a visible light communication subsystem 4. The visible light communication The subsystem 4 includes a plurality of visible light access points and terminals 5, and the visible light access point includes a second power modem module 41, a routing module 42, a downlink code modulation and light transmission module 43, an uplink detection and demodulation module A decoding module 44 and an LED lamp, each of the visible light communication subsystems 4 is correspondingly configured with one of the first power modems 3;

[0043] The downlink code modulation and optical transmission module 43 inc...

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Abstract

The invention relates to a power line communication and visible light communication combined system and a method for optimizing cell architectures. The power line communication and visible light communication combined system comprises a data source, broadband access and routing equipment, first power modems and visible light communication subsystems which are sequentially connected with one another. Each visible light communication subsystem comprises a plurality of visible light access points and terminals, each visible light access point comprises a second power modem module, a routing module, a downlink code modulation and light transmission module, an uplink detection, demodulation and decoding module and an LED lamp, and each visible light communication subsystem is correspondingly provided with the single corresponding first power modem. Compared with the prior art, the power line communication and visible light communication combined system and the method have the advantages of high expandability, actual service value, adaptability and transmission performance, wide application range and the like, are applicable to transmission with high reliability and high data transmission rate and have a broad market-oriented prospect.

Description

technical field [0001] The present invention relates to the technical field of visible light communication, in particular to a communication system combining power line communication and visible light communication with an electric signal regeneration link and a method for optimizing a visible light access cell architecture based on the communication system. Background technique [0002] In order to solve how to transmit data conveniently and at low cost to "new LED lights that use visible light for data transmission and reception", the combination of power line communication and visible light communication has become a cutting-edge research direction. However, in the existing solutions, one type of method is to use a coupler to extract the electrical signal transmitted in the power line and send it to the LED, and then the LED drive unit converts the voltage signal into a current signal, and then modulates the light intensity of the LED ( Such as the Chinese patent applicat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B3/54H04B10/116
Inventor 赵生捷向阳
Owner TONGJI UNIV
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