基于自适应调光的恒照度LED照明系统设计

Design of constant illumination LED lighting system based on adaptive dimming

本文设计了一个基于自适应调光的恒照度LED照明系统,本照明系统将光照强度的感应,信息的传输,驱动信号的占空比的决策,以及LED的亮度调节等集成于一个系统中,实现了LED照明系统的自适应调光。实验结果表明本照明系统可以根据外界环境光照的强弱自适应调节LED照明系统的光输出强度,保证环境光与照明系统的光的总和是一个不变的量,从而实现整个光照环境的恒照度照明。本文的研究成果在节约照明能源,提高人们的照明体验等方面具有重要的实用意义。

In this paper,a constant illumination LED lighting system based on adaptive dimming is designed.The system integrates the light intensity sensing,information transmission,duty cycle decision of driving signal,and brightness adjustment of LED into a system to realize the adaptive dimming of LED lighting system.The experimental results show that this lighting system can adaptively adjust the light output intensity of the LED lighting system according to the intensity of the external ambient light,so as to ensure that the sum of the ambient light and the light of the lighting system is a constant amount,so as to achieve the constant illumination of the whole lighting environment.The research results of this paper have important practical significance in saving lighting energy and improving people’s lighting experience.