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Visible light receiving device and visible light receiving method

A receiving device and visible light technology, applied in the field of visible light communication, to achieve the effect of strong applicability

Inactive Publication Date: 2018-04-10
NORTH CHINA UNIV OF WATER RESOURCES & ELECTRIC POWER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the protocol standard of visible light communication has not been determined yet, and many researchers are considering this issue, but there is a lack of a device that can conveniently and quickly study the communication protocol

Method used

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  • Visible light receiving device and visible light receiving method
  • Visible light receiving device and visible light receiving method
  • Visible light receiving device and visible light receiving method

Examples

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Embodiment Construction

[0026] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the present invention, and the described implementations are only part of the implementations of the present invention, not all of them. Based on the implementation manners in the present invention, all other implementation manners obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0027] Such as figure 1 and 2 As shown, the present invention includes a condenser lens 2, a photodiode 7, a USB interface 5, a power switch 1, a power indicator light 3, a signal indicator light 4 and a housing 6, and the photodiode 7 is arranged on the housing 6, and the housing 6 One end is provided with USB interface 5, and housing 6 is provided with amplifying circuit, band-pass filter circuit, frequency discrimination circuit, shaping circuit, microcont...

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Abstract

The invention discloses a visible light receiving device, which comprises a photodiode, a USB interface and a casing. circuit, shaping circuit, microcontroller and USB conversion circuit, the signal output end of the photodiode is connected to the signal input end of the amplifying circuit, the signal output end of the amplifying circuit is connected to the signal input end of the frequency discrimination circuit through a band-pass filter circuit, and the discrimination circuit The signal output end of the frequency circuit is connected to the signal input end of the microcontroller through the shaping circuit, and the signal output end of the microcontroller is connected to the USB interface through the USB conversion circuit. In the present invention, the microprocessor in the visible light receiving device is connected to the host computer through the USB interface, and the microcontroller program can be modified according to different protocols, so that the visible light receiving device can recognize data signals under different communication protocols, providing a research basis for the visible light communication protocol. Great convenience.

Description

technical field [0001] The present invention relates to the field of visible light communication, in particular to a visible light receiving device and a visible light receiving method. Background technique [0002] Visible Light Communication (VLC) technology is a broadband wireless access technology. The sending end transmits data information through high-speed flickering optical signals that are invisible to the naked eye emitted by light-emitting diodes or fluorescent lamps, and the receiving end detects optical signals through photodetectors to obtain the transmitted data information. The best choice for indoor wireless communication to meet the requirements is white light LED, which is used as a communication light source while providing indoor lighting, and is expected to realize indoor wireless high-speed data access. Radio waves make up only a tiny fraction of the entire electromagnetic spectrum, and as user demand for wireless internet grows, less and less radio f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B10/60H04B10/116
Inventor 陈建明鲁国建王亭岭王成凤赵明明刘子介陈榕陈嘉琦郭香静张亚军陈方里
Owner NORTH CHINA UNIV OF WATER RESOURCES & ELECTRIC POWER
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