Visible-light communication multiplex modulated antenna

A visible light communication and antenna technology, which is applied in the field of visible light communication to achieve the effect of increasing the transmission rate and the degree of multiplexing

Active Publication Date: 2013-07-10
HECHI INST OF MEASUREMENT TESTING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the multiplexing problem in visible light communication has always been a very important technical problem

Method used

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  • Visible-light communication multiplex modulated antenna
  • Visible-light communication multiplex modulated antenna
  • Visible-light communication multiplex modulated antenna

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0025] The multiplexing modulation antenna for visible light communication includes: a transmitting antenna and a receiving antenna.

[0026] The transmitting antenna includes: a modulation circuit 23 , an optical data transmitting head 3 , a transmitting prism 1 and a transmitting concentrating bowl 2 . There are seven optical data transmitting heads 3 in total, and the emission wavelengths and frequency ranges of the seven optical data transmitting heads 3 do not overlap.

[0027] The receiving antenna includes: a receiving focusing bowl 9 , a receiving prism 10 , an optical data receiving head 8 and a demodulation circuit 24 . There are seven optical data receiving heads 8 in total, and the received optical wavelengths and frequency ranges of the seven optical data receiving heads 8 do not overlap.

[0028] The transmitting antenna adopts 7 optical data transmitting heads 3 that emit monochromatic light in different ranges of wavelength; head 8.

[0029] The optical data...

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Abstract

The invention discloses a visible-light communication multiplex modulated antenna. The visible-light communication multiplex modulated antenna comprises a sending antenna and a receiving antenna, wherein a transmitting antenna comprises a modulated circuit, N light data transmitting heads (N is larger than or equal to 2), a light collector and a spotlight bowl, and the receiving antenna comprises a spotlight bowl, a light splitter, N light data receiving heads and a demodulated circuit. A filter filters parasitic light which is different from signal light of the light data transmitting heads or the light data receiving heads in wavelength range. Receiving light of the N light data receiving heads and transmitting light of the N light data transmitting heads are corresponding one-by-one in wavelength ranges, and the wavelength ranges of the transmitting light of the N light data transmitting heads are not overlapped. The modulated circuit of a sending end divides data into multiple paths and conducts modulation on the multiple paths of the data, and sends the multiple paths of the data in a converging light beam mode after passing through the light data transmitting heads, the light collector and the spotlight bowl. At a receiving end, the spotlight bowl receives the converged light, the converged light is spitted into the multiple paths of light signals of different wavelength ranges, after passing through the light data receiving heads, the multiple paths of light signals are demodulated, reorganized and restored into original data through the demodulated circuit. The visible-light communication multiplex modulated antenna improves multiplex degrees of antennas and transmission rates of the data in a multiple mode.

Description

technical field [0001] The invention relates to the technical field of visible light communication, in particular to a multiplexing modulation antenna for visible light communication. Background technique [0002] Visible light communication technology uses high-speed bright and dark flickering signals emitted by light-emitting diodes that are imperceptible to the human eye to transmit information. With this technology, high-speed wireless communication can be realized with illuminated lights, and this technology has broad development prospects. However, the multiplexing problem in visible light communication has always been a very important technical problem. [0003] We know that a beam of white light can be divided into 7 beams of red, orange, yellow, green, blue, indigo and purple on the other side of the prism after being refracted by a prism. At the same time, such 7-color lights are vertically incident into the prism after being arranged in a certain order, and will...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B10/516H04B10/116H01Q15/02
Inventor 邓健志
Owner HECHI INST OF MEASUREMENT TESTING
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