片机上下限温度报警器设计--课程设计

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1、陕西理工学院课程设计实验报告课程：单片机原理及应用题目：上下限温度报警器学号：姓名：班级：指导老师：时间：09.10.12-09.10.30摘要随着时代的进步和发展，单片机技术已经普及到我们生活，工作，科研，各个领域，已经成为一种比较成熟的技术,本文将介绍一种基于单片机控制的药库温度报警系统，本温度报警系统可以设置报警温度，当温度不在设置范围内时，可以报警。目录前言··················································································

2、································1.方案论证1.1.设计要求································································································51.2.设计方案论证·······························································································51.3.总体设计框图·······

3、························································································62.系统组成及工作原理2.1.DS18B20温度传感器与单片机接口电路····················································72.2.7断LED数码管电路及原理········································································

4、······82.3.系统整体硬件电路·····················································································102.4.显示电路········································································································112.5开机复位电路·····································

5、···························································122.6.报警电路········································································································133.系统软件算法分析3.1.主程序··········································································

6、······························153.2.读出温度子程序·······························································································153.3温度转换命令字程序························································································3.4计算温度子程序················

7、········································································3.5显示子程序························································································4.实验调试及测试结果分析·····················································································

8、·185:附录6.1.整体电路图····································································································196.2.元器件清单···········