毕业设计（论文）单片机的远程温度控制仪表的设计.doc

单片机的远程温度控制仪表的设计 摘要 当今世界已经进入信息时代，信息技术成为推动国民经济和科学技术发展的关键技术数字技术的出现把模拟仪器的精度、分辨力与测量速度提高了几个量级，为实现测试自动化打下了良好的基础目前，一个学习与应用单片机的高潮在全社会大规模地兴起。With the rapid development of the computer technology, measuring instruments and control technology, a growing number of advanced measurement and control technology、equipment and methods are used in modern automation field. How to use single-chip microprocessor in the area of temperature control system is one of the focus topics on the current temperature automation,which attracts more and more scientific research institutions’attention . The topic of study is adapted to this trend of development, SCM are applied to remote temperature control panel. Firstly ,the desigh analyzes the functional requirements of the temperature measurement and control system components, and make clear the techncal requirements for the temperature control system; Then the desigh choices the hardware components and software algorithms based on the func- -tion of the system; Finally, the package of hardware and software design are accomplished based on SCM remote temperature control instrumentation. Key Word: SCM Long-distance Temperature control 目 录 第一章 概述……………………………………………………………………1 1.1 选题背景…………………………………………………………………1 1.2 设计意义…………………………………………………………………1 1.3 设计内容………………………………………………………………….2 1.4 技术指标 ……………………………………………………………….. 2 第二章 设计思想与方案论证…………………………………………………..3 2.1 设计思想………………………………………………………………….3 2.1 方案论证………………………………………………………………….4 第三章 硬件电路设计…………………………………………………………..5 3.1 温度采集电路……………………………………………………………..5 3．1．1 温度测量元件 …………………………………………………...5 3．1．2 温度测量电路 ……………………………………………………5 3.2 A/D转换电路……………………………………………………………….6 3. 2. 1 A/D转换芯片的选择………………………………………………... 6 3. 2. 2 MC14433外接电路设计……………………………………………...9 3.3 8031主机模块的设计…………………………………………………… 10 3. 3. 1 8031芯片介绍………………………………………………………10 3. 3. 2 主机模块设计………………………………………………………11 3. 3. 3 看门狗电路设计……………………………………………………13 3.4 温度控制输出模块设计………………………………………………….13 3