数字测温系统设计正文说明书.doc

毕业设计(论文)说明书 题 目： 数字测温系统设计 摘 要 随着社会的发展，人们对环境中的温度和湿度的要求也越来越高，鉴于此，设计出一个能够精确、稳定、实时测量出环境中温湿度的实用型温湿度检测仪显得尤为重要。本次设计就是数字测温系统设计的研究与制作,该设计重点是以AT80S51单片机为控制核心，采用设计比较方案确定了温度传感器DS18B20用做温度检测，湿度传感器CHTM-02N用做湿度检测，显示部分采用12864液晶屏进行显示。能够显示当时环境的温度、湿度。其次用C语言完成数字温度模块及湿度模块和液晶显示模块等一些软件程序的编写，然后在经过电路调试，软件调试和综合调试等工作，最后在经过单片机对各个模块的控制，对信号的采集与处理，实现对环境温度、湿度参数的实时检测，当环境的温湿度超过一定值时进行报警的功能。从而成功的完成了本次课题设计的目标。 关键词：AT80C51；温度传感器；湿度传感器；12864液晶屏 Abstract Along with societys development, people on the environment temperature and humidity requirement also more and more high, in view of this, design a accurate and stable, real-time measure the environment temperature and humidity type of temperature and humidity detector is particularly important. This design is digital temperature measuring system design of research and production, the design key AT80S51 microcontroller as control core is compared, the design scheme determined the temperature sensor DS18B20 temperature detection, humidity sensors used CHTM - 02N used as humidity detection, 12864 LCD display part adopts displayed. Can display when the environmental temperature, humidity. Secondly C language complete digital temperature module and humidity module and LCD module and some other software program compiling, and then after circuit debugging, software debugging and integrated debugging, finally after SCM control modules, of the signal acquisition and processing, realize the environment temperature, humidity parameter real-time detection of temperature and humidity, when environment beyond a certain value for alarm function. Thus completing this topic design goal is success. Key Words: AT80C51；Temperature sensors; humidity sensors; 12864 LCD 目 录 TOC \o 1-3 \h \z \u HYPERLINK \l _Toc263340220 引言 PAGEREF _Toc263340220 \h 1 HYPERLINK \l _Toc263340221 1 绪论 PAGEREF _Toc263340221 \h 1 HYPERLINK \l _Toc263340222 1.1 本课题国内外发展现状 PAGEREF _Toc263340222 \h 1 HYPERLINK \l _Toc263340223 1.2 选题背景及意义 PAGEREF _Toc263340223 \h 1 HYPERLINK