基于单片机的温度检测系统设计（可编辑） .doc

毕 业 设 计 设计题目基于单片机的温度检测系统设计 摘要在日常生活及工业生产过程中经常要用到温度的检测及控制温度是生产过程和科学实验中普遍而且重要的物理参数之一在生产过程中为了高效地进行生产必须对它的主要参数如温度压力流量等进行有效的控制温度控制在生产过程中占有相当大的比例温度测量是温度控制的基础技术已经比较成熟关键词 DS18B20温度传感器 温度检测 Design of Temperature Detection System Based On SCM Abstract The detection and control of temperature is often used in daily life and industrial production process temperature is one of the important physical parameters of the production process and scientific experiments generally During the production process in order to carry out the production efficiently we must control its main parameters well such as temperature pressure and so on Temperature control in the production processes a large proportion Temperature measurement is the basis of temperature-controlling and a more mature technology A precision temperature control system used AT89S51 SCM and the hardware circuit and software of this system are introduced Schematic diagram of the hardware and procedures is related in emphasis Working principle design and implementation is elaborated The current temperature is measured by DS18b20 temperature sensor and the results is transported into SCM Then the temperature is calculated and the conversion results is transported into the liquid crystal display modules 1602 on show It can display current temperature which is set randomly and controlled flexibility and the temperature controlWhen the temperature is beyond the upper and lower limits of temperature the alarm system starts automatically What is realized in this system is simple structure reliable performance and high precision control The system is in good scalabilityhigh-resolutionwide rangeanti-interference performance and so on． Key WordsAT89S51 SCMDS18B20 Temperature sensorTemperature detection 目 录 1 绪论 1 11国内外温度检测技术概述 1 com测技术简介 1 com测技术的发展 4 12单片机技术的发展及应用 5 com技术的发展 5 com技术的应用 6 2 方案论证 8 21题目分析 8 22温度传感器的选择 8 com拟集成温度传感器 8 com字单片智能温度传感器 9 23显示器的选择 10 com LED显示器 10 com LCD液晶屏 10 24单片机的选择 11 com片机 11