文档介绍：清华大学
本科毕业论文
基于单片机控制的太阳能LED路灯照明系统
专业名称自动化
申请学士学位所属学科工科
2012年5月10号
摘要
本设计基于AT89C52单片机,太阳能采集板吸收的太阳能经逆变器转化为稳定的+5V电压作为各器件的供电电源。热释传感器检测移动物体,及由光敏电阻组成的分压电路检测周围环境明暗情况。矩阵键盘键入数据后经芯片AT89C52控制由LCD显示相应信息。单片机与上位机之间由RS232串行通信接口连接,使软硬件相结合。整个过程完成了基于单片机的太阳能LED路灯照明控制系统的要求。设计电路主要分为核心单片机、太阳能采集电路、蓄电池存储及电压检测电路、负载输出控制与过流检测电路、红外传感器距离感应电路、键盘电路、节能LED电路、串口通信电路、LCD显示等模块。设计中各状态均由按键控制,并以128*64 点阵LCD显示,操作简单,功能齐全,界面友好。
关键词:负载输出控制及检测电路太阳能采集电路 LED 红外感应
Abstract
This design based on the AT89C52 single puter, solar collection plate absorbs solar via inverter into stable + 5V voltage as each device of power supplies. Heat release it sensor detection, and moving object by photosensitive resistors points voltage circuit testing environment light and shade. Matrix keyboard type data by AT89C52 control after chip LCD the corresponding information. Between SCM and PC by RS232 munication interface connection, bining software. The whole pleted based on SCM solar LED street lamp lighting control system requirements. Circuit design mainly divided into core microcontroller, solar acquisition circuit, battery storage and voltage detection circuit, load output control and flow detection circuit, infrared sensor distance induction circuit, keyboard circuit, energy-saving LED circuit, munication circuit module, LCD display. Design of each state all by buttons control, and to 128 * 64 dot matrix LCD display, simple operation, the function is all ready, friendly interface
Key words: load output control and detection circuit solar data acquisition circuit LED infrared sensor
目录
1 绪论………………………………………………………………………1
设计研究的原因、目的与意义………………………………1
国内外研究现状及发展趋势…………………………………1
2 系统原理及各组成模块……………………………………………2
…………………………………………………………2
…………………………………………………2
太阳能采集及电源模块………………………………2
A/D电压采样模块……………………………………3
物体检测模块和环境明暗检测模块………………5
路灯控制模块……………………………………………6
键盘电路模块 …………………………………………7
LCD显示模块…………………………………………8
时钟模块………………………………………………9
串口通信模块……………