毕业设计基于STC89C52单片机的红外闹钟装置设计与实现.doc

PAGE 广州大学松田学院毕业论文（设计）题 目 基于单片机的红外闹钟装置设计与实现 二○一三 年 六 月基于STC89C52单片机的红外闹钟装置设计与实现摘要： 随着生活节奏的提高，事务必的繁多，人们越来越离不开电子产品的定时提醒功能，而最典型的就是早晨的闹钟唤醒，很多人有赖床和睡回笼觉的坏习惯，影响上班上学，本文中将针对此部分人群设计一款具有强制唤醒功能的智能感应闹钟。 单片机适用于机电一体化的智能产品，控制功能强，而热释电晶体作为红外激光的一种较理想的探测器，被广泛应用到各种自动化控制装置中，本设计基于以智能化强制唤醒方式，防止懒人赖床的设计理念，以STC89C52单片机控制为核心，结合DS1302时钟芯片，1602 LCD液晶屏，按键电路，热释电红外传感器模块，周期性遮光装置。除了基本的闹钟功能，可以设置并且显示年、月、日、时、分、秒、星期，主要实现智能红外感应功能，到达设置时间，能自能检测床上一定范围内有无存在人体，有则驱动闹铃并延时检测，无则延时感应检测。设计特色在于闹钟理念的创新，及热释电红外传感器对静止人体的感应敏感度低的问题解决。关键词：STC89C52，1602 液晶显示屏，热释电红外传感器，DS1302时钟芯片 Based on single chip microcomputer infrared alarm device design and implementationAbstract：With the improvement of life rhythm, the transaction will be a variety of perspectives, people more and more inseparable from electronic products regularly remind function, and the most typical is the alarm clock wake up in the morning and many people depend on the bed and sleep up bad habits, and affected to work or school, this article in view of this part design a crowd has forced intelligent sensing alarm clock wake up function.Microcontroller is applicable to mechanical and electrical integration of intelligent product, control function is strong, the pyroelectric crystal as an ideal detector, infrared laser is widely applied to various kinds of automation control device, this design is based on intelligent forced wake up way, prevent the lazy bed design concept, STC89C52 singlechip control as the core, based on DS1302 clock chip, 1602 LCD screen, button circuit, pyroelectric infrared sensor module, periodic shading device. In addition to the basic alarm clock function, can set up and display year, month, day, hours, minutes, seconds, weeks, and main function of intelligent infrared induction to set a time, and can detect the bed whether exist within a certain range of the human body, has the drive alarms and delay detection, no delay induced detection. Design feature is that alarm clock concept innovation, pyroelectric infrared sens