《单片机技术》课程设计-数字温度计设计汇.doc

《单片机技术》课程设计说明书 数字温度计 系 、 部： 电气与信息工程系 学生姓名： 指导教师： 职称 副教授 专 业： 电子信息工程 班 级： 电子0902班 完成时间： 2011-12 摘 要 温度的检测与控制是工业生产过程中比较典型的应用之一，随着传感器在生活中的更加广泛的应用，利用新型数字温度传感器实现对温度的测试与控制得到更快的开发，本课程设计设计了一种基于AT89S52的数字温度计。该系统可以方便的实现温度采集和显示。系统由硬件系统和软件系统组成，硬件系统由单片机最小系统、测温电路以及显示电路组成；软件系统由主函程序、测温程序、判键程序和显示程序组成。它使用起来相当方便，具有精度高、量程宽、灵敏度高、体积小、功耗低等优点，适合于我们日常生活和工、农业生产中的温度测量，也可以当作温度处理模块嵌入其它系统中，作为其他主系统的辅助扩展。该系统设计和布线简单，结构紧凑，抗干扰能力强，在大型仓库、工厂、智能化建筑等领域的温度检测中有广泛的应用前景。 关键词：数字温度计，单片机，温度传感器 ABSTRACT The temperature detection and control is the process of industrial production is one of the typical applications, with the sensor in the life of a more extensive application, using a new digital temperature sensor to realize the temperature measurement and control get faster development, the curriculum design based on the design of a AT89S52 digital thermometer. The system can facilitate the realization of temperature acquisition and display. The system is composed of the hardware system and software system, the hardware system is composed of MCU minimum system, temperature measurement circuit and display circuit; the software system is composed of a main function procedures, measurement procedures, convicted of key procedures and display program. It is very convenient to use, has high accuracy, wide measuring range, high sensitivity, small volume, low power consumption, suitable for our daily life and industrial and agricultural production, temperature measurement, but also can be used as a temperature processing module embedded in other systems, as the other main system auxiliary extension. The system design and layout is simple, compact structure, strong anti-interference ability, in large warehouses, factories, construction and other areas of intelligent temperature detection has a wide application prospect in the. Key words digital thermometer；MCU； temperature sensor 1 设计任务、功能要求及总体方案 1.1 设计任务 设计一个具有特定功能的数字温度计。 1.2 功能要求 1）数字温度计上电或按键复位后