文档介绍：毕业设计(论文)

温湿度控制系统
系别:电子工程系
专业名称:电子信息工程
学生姓名:
学号:
指导教师姓名、职称:

完成日期 2010 年4月20 日

温度湿度控制系统
摘要
本文的工作主要分为硬件系统的设计和软件系统的设计。以硬件设计为主,分别介绍了温湿度测量传感器、A/D转换、显示模块、控制模块和串行接口部分;模-数转换模块,实现对采集到的数据进行模拟量到数字量的转换;串行接口部分,实现单片机与PC机之间的双机通讯。软件部分主要介绍设计思想及主程序流程图。本系统是一个的智能控制系统,采用了较新的集成电路,是专门为温室温湿度控制行设计的。系统具有以下优点:性能好、操作方便。其测量为0-50℃;实现了对温湿度的显示或温湿度调节;自动控制或手动控制。系统设置了串行通讯口RS-232,用户还可以通过系统面板上的按键来设定各种参数。
关键词:单片机; A/D转换; 传感器; LED; 控制
Abstract
The paper is divided into hardware system design and software system design. Mainly to hardware design, introduced the measurement of temperature and humidity sensor, A / D conversion, display module, control module and serial interface part; mode - conversion module that collected data on the analog to digital conversion ; serial interface part of MCU and munication between the two units. Software design and introduce some of the main program flow chart. This system is a smart control system, using a relatively new integrated circuits, specifically for the greenhouse temperature and humidity control line design.
System has the following advantages: good performance, easy operation. The measurement is 0-50 ℃; to achieve the display of temperature and humidity or temperature and humidity regulation; automatic or manual control. System has set up the munication port RS-232, users can also buttons on the front panel through the system to set various parameters.
Keywords: microcontroller; A / D conversion; sensor; LED; control
目录
摘要………………………………………………………………………………….
绪论………………………………………………………………………………1
选题背景……………………………………………………………………1
项目的主要任务……………………………………………………………1
设计方案…………………………………………………………………………2
温度传感器的选择…………………………………………………………2
湿度传感要器的选择………………………………………………………2
信号采集系统的选择………………………………………………………2
系统总体设计……………………………………………………………………4
……………………………………………………………………4
……………………………………………………………4
……………………………………………………………7
………………………………………………………………9
……………………………………………………………11
A/D转换…