毕业设计论文基于8031单片机温度控制系统设计1.doc

基于8031单片机温度控制系统设计 摘 要 随着国民经济的发展，人们需要对各种加热炉、热处理炉、烘干箱温度进行监测和控制。采用单片机来对他们控制不仅具有控制方便，简单和灵活性大等优点，而且可以大幅度提高被控温度的技术指标，从而能够大大的提高产品的质量和数量。 本设计以MCS-51单片机为基础，结合温度传感变送器、A/D转换器、LED显示器等，组成一个基于MCS-51系列中8031单片机的温度控制系统本设计，对烘干箱的温度进行检查与控制。温度控制误差≤±2℃。烘干时显示实时温度，显示精确到1℃。 关键词：单片机，烘干箱，温度控制，过程控制系统 base on 8031 Singlechip temperature control system design ABSTRACT With the development of the national economy, there is a need for a riety of furnace ,heat treatment furnace, drying box temperature monitoring and control. Single-chip computer to control not only has control of their convenience, simplicity and flexibility advantages, but also substantial increase in temperature was charged with technical indicators, which can greatly improve the quality and quantity of products. The MCS-51 design is based on single-chip, combined with temperature sensing transducer, A / D converter, LED display and so on, based on the formation of a MCS-51 series of 8031 single-chip temperature control system for the design, the temperature of the drying box to check and control. Temperature control error ≤ ± 2 ℃. Display real-time temperature of drying, indicating accurate to 1 ℃. KEY WORDS: microcontroller, dry box, temperature control, process control system. 目　录 TOC \o 1-3 \h \z \u HYPERLINK \l _Toc150747368 前 言 1 HYPERLINK \l _Toc150747369 第1章 绪 论 2 HYPERLINK \l _Toc150747370 1.1 概述 2 HYPERLINK \l _Toc150747371 1.2 单片机技术简介 2 HYPERLINK \l _Toc150747372 1.2.1 单片机技术的发展 2 HYPERLINK \l _Toc150747373 1.2.2 单片机技术的应用 3 HYPERLINK \l _Toc150747380 第2章 元器件介绍 5 HYPERLINK \l _Toc150747381 2.1 单片机系统主机的选择 5 HYPERLINK \l _Toc150747382 2.1.1 单片机的主流系列及机型选择 5 HYPERLINK \l _Toc150747383 2.1.2 8031单片机特点 5 HYPERLINK \l _Toc150747384 2.1.3 总线结构 8 HYPERLINK \l _Toc150747386 2.2 温度传感器 9 HYPERLINK \l _Toc150747387 2.3 2864A介绍 10 HYPERLINK \l _Toc150747388 2.4 ADC0809介绍 12 HYPERLINK \l _Toc150747389 2.4.1 ADC0809转换器及其接口电路 12 HYPERLINK \l _Toc150747390 2.4.2 ADC0809引脚介绍 14 HYPERLINK \l _Toc150747400 2.5 七段