基于单片机多路温度采集系统设计.doc

前言 洛阳理工学院毕业设计（论文） PAGE \* MERGEFORMAT I 基于单片机的多路温度采集系统设计 摘 要 在现代化的工业生产中，人们都需要对各类加热炉热处理炉反应炉和锅炉中的温度进行检测和控制，采用单片机来对温度进行控制不仅具有控制方便 组态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 从而能够大大提高产品的质量和数量，温度是工业生产中常见的被控参数, 对典型的温度控制系统进行研究具有很广泛的意义。本数字式多路温度采集系统由主控制器、温度采集电路、温度显示电路、报警控制电路及键盘输入控制电路组成。它利用单片机STC89C51做控制及数据处理器、智能温度传感器DS18B20做温度检测器、LCD液晶做温度显示输出设备。硬件电路比较简单，成本较低，测温范围大，测量精度高，读数显示直观，使用方便。 关键词：温度传感器，单片机，控制 Multichannel Temperature Gathering System based on SCM ABSTRACT In the modern industrial production, people need to all kinds of heating furnace and boiler heat treatment furnace temperature of the reactor inspection and control by single chip microcomputer to control temperature in has not only convenient control configuration simple and flexible could increase the advantages and accused of technical indexes which can temperature greatly improve the quality of the products and the quantity, the temperature is industrial production in common is accused of parameter, typical of the temperature control system with a wide range of research significance. This digital multichannel temperature gathering system by the temperature controller, acquisition circuit and temperature display circuit, alarm control circuit and control circuit of keyboard input. It uses single chip STC89C51 do control and data processor, intelligent temperature sensor DS18B20 do temperature detector, LCD do temperature display output device. Hardware circuit is simple, with low cost and temperature measuring range, high accuracy, readings show intuitive and easy to use. KEY WORDS: Temperature Sensor, SCM, Control 目　录 TOC \o 1-3 \h \z \u HYPERLINK \l _Toc326397400 前　言 PAGEREF _Toc326397400 \h 1 HYPERLINK \l _Toc326397401 第1章 绪论 PAGEREF _Toc326397401 \h 2 HYPERLINK \l _Toc326397402 1.1背景和意义 PAGEREF _Toc326397402 \h 2 HYPERLINK \l _Toc326397403 1.2发展现状 PAGEREF _Toc326397403 \h 2 HYPERLINK \l _Toc326397404 1.3 设计研究意义及目的 PAGEREF _Toc326397404 \h 4 HYPERLINK \l _Toc326397405 第2章 数字式多路温度采集系统硬件电路设计 PAGEREF _To