| CPC H04B 10/116 (2013.01) [H04B 10/07953 (2013.01); H04B 10/07955 (2013.01); H04B 10/114 (2013.01); H04B 10/502 (2013.01); H04B 10/506 (2013.01); H05B 45/10 (2020.01); H05B 47/11 (2020.01)] | 14 Claims |
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1. A method for optically-carried information transmission based on full spectrum LED, which applied at a transmitting end, wherein the transmitting end comprises a full-spectrum semiconductor light-emitting device which comprises a first predetermined number of monochromatic LEDs with different emission wavelengths, an emission wavelength adjustment range of each monochromatic LED belongs to different wavelength intervals, the method comprises:
splitting data to be transmitted according to first transmission requirement information to obtain a second predetermined number of data fragments, wherein the second predetermined number is less than or equal to the first predetermined number,
determining the second predetermined number of target monochromatic LEDs according to light emission characteristics of the monochromatic LEDs and the first transmission requirement information, which specifically comprises:
determining second transmission requirement information for each data fragment according to the first transmission requirement information, wherein the first transmission requirement information includes bandwidth and rate requirement parameters,
selecting the monochromatic LEDs according to the second transmission requirement information to obtain candidate monochromatic LEDs, wherein a number of the candidate monochromatic LEDs is greater than or equal to the second predetermined number and less than or equal to the first predetermined number,
when the number of candidate monochromatic LEDs exceeds the second predetermined number, determining the second predetermined number of the candidate monochromatic LEDs as target monochromatic LEDs according to the light emission characteristics of the candidate monochromatic LEDs, which specifically comprises:
obtaining a light emission characteristic parameter of each candidate monochromatic LED, wherein the light emission characteristic parameter includes: emission wavelength, spectral width, and light intensity,
obtaining a visual acuity function value of each candidate monochromatic LED according to the emission wavelength and a visual acuity function,
determining an eye interference index for each candidate monochromatic LED based on the visual acuity function value, emission wavelength, spectral width, and light intensity, wherein the eye interference index is positively correlated with the visual acuity function value and light intensity, and negatively correlated with the spectral width and light intensity,
sorting the candidate monochromatic LEDs in descending order of the eye interference index, and selecting top the second predetermined number of candidate monochromatic LEDs as the target monochromatic LEDs;
when the number of candidate monochromatic LEDs is equal to the second predetermined number, assigning the candidate monochromatic LEDs as target monochromatic LEDs,
processing corresponding data fragments for each target monochromatic LED according to a preset modulation algorithm corresponding to each monochromatic LED, thereby generating respective light source control signals,
and, controlling the target monochromatic LEDs to perform optically-carried information transmission according to the light source control signals.
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