基于单片机的PWM调光灯设计.doc

摘要 目前市场上的LED台灯，作为LED的绿色护眼光源产品而进行开发和研究，还是作为我国的照明推广家用型产品。随着时代的变迁，社会的发展，节能和环保这一主题已经是当今社会必要发展的目标了、健康与人们的日常生活变得密不可分，科技的进步，也使家电更加智能化和人性化。台灯作为家电中基础的，也是必不可少的，所以，提出PWM调光灯设计。? 本设计主要是将STC89C51RC单片机作为控制核心，这是将多种功能集于一体的智能LED台灯。该台灯具有手动、自动两种调节亮度的方式；主要的产品功能有呼吸模式、红外遥控操作等等。硬件的设计部分为单片机控制模块、按键控制模块、照明显示模块、光敏感应模块、LED灯指示报警模块、远程遥控模块等组成。单片机主要控制芯片型号选用STC89C51RC，LED指示报警模块选择三种颜色不同的LED指示灯来显示三种不同的工作模式，通过按键控制模块进行调整和控制工作模式和LED亮度程度，照明模块选用草帽型12白光LED，光敏感应模块采用可以对光敏信号的采集芯片ADC0832，并利用PWM调光技术对LED进行光度的自动调节。可以通过红外遥控远距离无线遥控，通过单片机C语言编程进行软件设计，将所需的设计要求全部可以进行功能的控制。 关键词 LED台灯 光度 PWM调光 自动调节 Abstract LED lamp?as LED?green lighting?products,?as the?country?to promote the use of?green?lighting?products.?With the development of the times,energy saving and environmental protection,?health and the peopledaily life?are inseparable,?the progress of science and technology,also makes home appliances?more intelligent and humanized.?The lamp?as?home appliances?based,?so?is also essential,,?put forward PWM?dimming the lights?design. The?design is based on STC89C51RC?SCM as?control?core?and multi functions?in one of the?intelligent?LED lamp.?The?table lamp realizes the?brightness?with manual,?automatic two?types of regulation;respiratory?mode function,?but also has?the function of infrared remote control.?The design of the hardware?part?consists of?MCU controlmodule,?keyboard module,?lighting module,?photosensitive?module,LED?module,?remote control?module?instruction.?The MCU main control?chip?STC89C51RC,?LED?indicating module?with three kinds ofdifferent colors of small?LED?to indicate different?working modes,brightness?through the key?module to adjust the?working?mode and the LED?lighting?module,?using 12?straw hat type?white LED,photosensitive?module uses ADC0832?chip implementation of?a?signal acquisition,?automatic regulation?and?luminosity?of?LED using?PWM dimming?technology.?Through the?infrared remote control,?wireless remote control,?software design of?the?MCU C?language programming,integrated?control functions are re