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毕业设计说明书
题目:带温度显示功能的电子万年历
学院: 电子工程与自动化学院
专业: 测控技术与仪器
学生姓名:
学号:
指导教师:
职称:
√
题目类型: 理论研究实验研究工程设计工程技术研究软件开发

摘要
在当代繁忙的工作与生活中,时间与我们每一个人都有非常密切的关系。为了更好的利用我们自己的时间,我们必须对时间有一个度量,因此产生了钟表还有万年历。传统的钟表体积较大,携带不方便,时间准确性较差。数字化的电子万年历体积小,时间准确,携带方便,已经成为我们生活中不可或缺的必需品。研究万年历对我们的日常生活有重意义。
本设计采用STC89S52单片机作为控制核心,功耗小,能在3V的低压工作,电压可选用3至5V电压供电。时钟电路采用了美国DALLAS公司推出的具有涓细电流充电能的低功耗实时时钟电路DS1302。它可以对年、月、日、周日、时、分、秒进行计时,还具有闰年补偿等多种功能。温度传感器电路使用数字芯DS18B20芯片,转换速度快,数据准确。显示电路采用了Nokia5110液晶显示屏,液晶显示屏的显示功能强大,可以显示日期、时间、闹钟和温度。语音电路采用ISD1760,准确播报当前时间和温度且能够整点报时。
最终经检测本设计能够实现时间闹钟可调、可以显示温度、语音提示和液晶显示等基本功能,还实现了夜间关闭LCD液晶显示,按下报时键播报当前语音的创新功能。
关键词:单片机;液晶显示;电子万年历;语音播报
Abstract
In contemporary busy work and life, time and every one of us has a very close relationship. In order to make better use of our own time, we must have a measure of time, resulting in a clock and calendar. The traditional horological large size, portability, time accuracy is poorer. Digital electronic calendar small volume, time accurate, easy to carry, has e an indispensable in our life necessities. Research calendar to our daily life have heavy significance.
This design USES the STC89S52 single chip puter as control core, low consumption in the low-pressure 3V can work, voltage can choose 3 ~ 5V voltage power supply. Clocking circuit using America pany launched Juan fine with the current charging can DS1302 low-power real-time clock circuit. It can be for year, month, day, week, when, minutes and seconds for timing, but also has a leap pensation functions. Temperature sensor using a digital circuit, the core DS18B20 chip converting speed, data accuracy. Display circuit adopted Nokia5110 LCD screen, LCD display powerful, can show the date, time, alarm clock and temperature. Voice circuits using ISD1760, accurate reporting current time and temperature and able to strike the hour.
Finally after testing this design can realize the time clock is adjustable, can display temperature, voice prompt and LCD display basic functions, bu