Spectrum optimizing method and system for relieving jet lag by four-color LED light source

Abstract

The invention discloses a spectrum optimizing method and system for relieving jet lag by a four-color LED light source. According to the method, firstly, a lower limit value and an upper limit value of a relevant color temperature are set, and are converted into a corresponding CIE 1931 chromaticity coordinate; then, based on a physiological rhythm model and a CIE color developing index, the spectral power distribution and the tristimulus values of LEDs in each light color are used for building a spectrum optimization model at the chromaticity coordinate; finally, solving is performed by usinga constrained optimization algorithm; and the optimum spectrum power distribution of the four-color LED light source during the jet lag relieving can be determined. The problem that a current passenger cabin uses a four-color LED light source for illumination and is lack of a spectrum optimization for relieving the jet lag of passengers is solved. The method has the advantages that the light quality required by general illumination is ensured; meanwhile, two groups of optimum spectrums are optimized; a best light environment can be provided for relieving the jet lag of the passengers; the advantage of adjustable spectrum of the four-color LED light source is sufficiently utilized; and the technical support is provided for the design and the research and development of a passenger cabin illumination light source.

Description

technical field [0001] The present disclosure relates to the technical field of LED lighting, in particular to a spectrum optimization method and system for four-color LED light sources to alleviate jet-lag. Background technique [0002] The statements in this section merely provide background information related to the present disclosure and do not necessarily constitute prior art. [0003] When taking a long-distance transoceanic trip by plane, after flying across multiple time zones, most people will experience different degrees of jet lag, such as sleep disturbances, headaches, gastrointestinal discomfort, cognitive and motor function decline and other symptoms, which often It takes several days or even ten days to be relieved, which is commonly referred to as jet lag. Jet lag is mainly caused by the fact that the human body's circadian rhythm system time (biological clock) is not synchronized with the external time, forcing it to adjust to adapt to the work and rest ti...

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Problems solved by technology

[0005] In order to solve the above problems, the present disclosure proposes a spectrum optimization method and system for four-color LED light source to alleviate flight jet lag, and solve the lack of a spectrum optimization for alleviating passenger flight jet lag when four-color LED light source lighting is currently used in the cabin The problem with the method, this method optimizes two sets of optimal spectra while ensuring the light quality required for general lighting, which can provide the best light environment for alleviating passengers’ flight jet lag; this method makes full use of four-color LED light sources The advantage of adjustable spectrum can provide technical support for the design and development of cabin lighting sources

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