单片机上下限温度报警器课程设计报告.doc

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2017-09-30 发布于湖北
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单片机上下限温度报警器课程设计报告.doc

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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：张鹏超时间：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，本可以设置报警温度，当温度不在设置范围内时，可以报警。 ·················································································································· 1.方案论证 1.1.设计要求································································································5 1.2.设计方案论证·······························································································5 1.3.总体设计框图·······························································································6 2.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····················································7 2.2.7断LED数码管电路及原理··············································································8 2.3.系统整体硬件电路·····················································································10 2.4.显示电路········································································································11 2.5开机复位电路································································································12 2.6.报警电路········································································································13 3.系统软件算法分析 3.1.主程序········································································································15 3.2.读出温度子程序·······························································································15 3.3温度转换命令字程序························································································ 3.4计算温度子程序························································································ 3.5显示子程序························································································ 4.实验调试及测试结果分析······················································································18 5: 附录 6.1.整体电路图·············································