LED光源调光系统的设计

LED intelligent light dimming system

LED因其发光效率高,寿命长,耗电量少,越来越受到广大用户的关注。本文设计了一套LED光源智能调光系统,可根据周围环境是否有人和环境亮度不同来自动控制LED照明的开关和亮度。本系统具有提高用电效率、节约电能以及保护环境的作用。本系统由硬件和软件两部分组成,硬件部分主要包括红外模块、环境亮度传感模块、运放电路、控制模块、驱动模块以及电源模块。软件部分包括总的控制程序和各个模块的控制程序两部分。本系统的软件采用模块化设计思想,以主程序为核心设置多个功能模块子程序,使大量功能在子程序中实现,简化了设计结构。

LED lighting lamp is a new light source, working at low voltage, high luminous efficiency and low power consumption. This article has designed an LED intelligent light dimming system which can control automatically the switch and the brightness of LED lighting based on human and the different brightness in the surrounding environment. The system is composed of hardware and software. Infrared module, environmental brightness sensing module, operational am- plifier circuit, control module, drive module and power module are included in the hardware. The software is divided into the total control of procedure and the part control procedures in all modules. According the modular design idea, a number of function programs are set up as the core module subprograms for the system, a large number of functions are achieved in the subroutine to simplify the design structure.