Design Of Dynamic Classroom Light Environment Oriented To Physiological Rhythm Of Human Body

In the process of natural evolution,people have formed 24 hours dynamic circadian rhythm characteristics,especially students are in the stage of physical and mental development.The international lighting Committee Announcements: correctly use lights at different times.According to the research progress of non visual effect the new biology,establish a dynamic classroom light environment to meet the physiological rhythm of human body,break through the existing Chinese classroom fixed static lighting mode,try to external natural dynamic sun lights to the classroom space,the sun from non visual light vision,dynamic factor,and according to the existing classroom lighting the establishment of standard,non visual classroom dynamic light model.This paper mainly focuses on the study of biological effects of natural light,and the results are combined with existing classroom lighting standards,designed to dynamic classroom lighting parameters to the rhythm of human physiology,and then use the PWM dimming technology,the establishment of dynamic LED lighting system,finally the research results were applied to specific classroom space,design to the classroom dynamic light environment to human physiological rhythm.This article is divided into five chapters: the first chapter: introduction.The research background and significance of this topic are briefly summarized.Firstly,the research process and main research direction of classroom lighting at home and abroad are investigated and summarized.At the same time,summarizes and analyzes the domestic and foreign scholars on the research direction of biological effects of light and progress,research significance and innovation of classroom lighting design of optical biological effect on the value of the property at the same time,through the comparison between the present situation of classroom lighting,fully display the development state of the subject,research significance and advantages,and points out the research and composition the main contents of this paper.The second chapter: the research foundation of classroom lighting and light biological effect.We give some basic parameters of the concept of classroom lighting in the existing classroomlighting requirements,standard induction,comparison and analysis,at the same time,the channel of human brain visual and non visual channels are summarized,mainly describes the research and application of the advantages of optical biological effect.The third chapter: the evaluation method of light biological effect.This paper briefly introduced the three optical biological existing evaluation methods and gives comparative analysis,through building natural light testing system carried out a series of experiments and data analysis of the experimental results,on the basis of the circadian biomass factor to stab the laser illumination system quantitative characterization of the impact on physiological rhythm of human body,the variation of natural light with the classroom light environment existing standards are combined to develop the classroom light environment parameters for physiological rhythm of human body.The fourth chapter: dynamic lighting.The traditional static lighting mode and dynamic lighting method are compared briefly,and the existing design and application cases of the existing dynamic lighting are briefly described.Then,a dynamic LED lighting system is built by using PWM dimming technology.The driving circuit and system software of the system are explained in detail.The fifth chapter: Dalian Industrial University as a dynamic light environment,the preliminary research on various types of classroom,classroom environment and the effect of light period using DIALux simulation,the data and the dynamic model of the natural light of the data analysis,and verify whether the agreement,so as to realize the design of classroom light environment set for the physiological rhythm of human body.The sixth chapter: summary and prospect.The research contents,implementation plan and research results are summarized.