单片机多功能电子钟【毕业设计论文】】.doc

XX大学本科生毕业设计说明书
(毕业论文)
单片机多功能电子钟的设计
—硬件设计
摘要
电子钟主要是利用现代电子技术将时钟电子化、数字化。与传统的机械钟相比,具有时钟精确、显示直观、无机械传动装置等优点,因而得到广泛应用。另外,在生活和工农业生产中,人们对电子钟的功能又提出了诸多要求:报时、闹钟、日历、温度显示,这就需要电子时钟的多功能性。
根据人们的不同要求,本设计主要为实现一款可正常显示时钟/日历、测量环境温度、带有定时闹铃的多功能电子时钟。
笔者通过查阅大量的资料。对当前电子钟开发技术进行了认真的比较和分析,最终确定采用单片机技术实现多功能电子时钟。本设计基于AT89C51芯片作为核心,7位LED数码管显示,使用DS1302时钟日历芯片完成时钟/日历的基本功能,同时利用DS18B20温度传感器测量环境温度。这种设计方法的优点是电路简单,性能稳定,实时性好,时间和温度精度高,性价比高,开发较为容易。
关键词:电子时钟;多功能;DS1302时钟日历芯片;AT89C51;温度传感器
The Design with Investigation of the Multi-function Electron Clock
-The Design of the Hardware
Abstract
The electronic clock mainly uses the electronic technology make the puterization, the pared with the traditional mechanical bell, it has the clock precision, intuitive display, the advantages of no mechanical transmission device, which is widely addition, living and industrial and agricultural production, people on the clock's function has also put forward many demands: alarm clock, calendar, temperature display, so electronic clock need multi-function.
According to the different requirements of the people, the design for the main implementing a clock/calendar can be displayed normal, collecting personal ambient temperature, with the timing alarm of the multi-function electronic clock
Through access to a lot of paring and analysising the development technology of the electron clock, the design determines to use the MCU technology to realize the multi-functional electron clock. This design application AT89C51 as a core chips, 7 LED digital displaying, using DS1302 real-time clock chip plete the basic function of the clock/calendar. At the same time the design use of DS18B20 temperature sensors to collect the environmental temperature. The method has the advantage of being simple circuit, reliable performance, good real-time, high precision of the time and temperature, cost-effective to develop more easily.
Key words: Electronic clock; Multi-function; DS1302; AT89C51; Temperature pickup
目录
摘要 I
Abs