课设论文——DHT11温湿度模块的开发及应用.doc

课程设计(论文)说明书
题目: DHT11温湿度模块的开发及应用
院(系): 信息与通信学院
专业: 电子信息工程
学生姓名:
学号:
指导教师:
职称: 副教授
2013年 5 月 12 日
摘要
本课设采用8051系列单片机以及DHT11温湿度传感器相结合的方式来测量周围环境温度,其特点具有采集温度、湿度的时间快,所采集到的温湿度数值精度相对传统温湿度计要高,且易于读数,抗干扰能力强等特点。
DHT11数字温湿度传感器是一款含有已校准数字信号输出的温湿度复合传感器。它应用专用的数字模块采集技术和温湿度传感技术,确保产品有极高的可靠性与卓越的长期稳定性。传感器包括一个电阻式感湿元件和一个NTC测温元件,并与一个高性能8位单片机相连接。
8051单片机是常用于控制的芯片,使用8051单片机能够实现温湿度全程的自动控制,而且8051单片机易于学习掌握。
使用8051型单片机设计温湿度控制系统,可以即时快速精确的反应温室内的温度的变化。完成诸如升温到特定的温度时进行报警,引起注意。
关键词: 8051   DHT11     
Abstract
This Curriculum Design set with 8051 series single chip puter and bination of DHT11 temperature and humidity sensor to measure ambient temperature, its characteristic has quickly to collection temperature, by the temperature and humidity values relative to the traditional temperature and humidity meter high accuracy, easy reading, strong anti-jamming capability, etc.
DHT11 digital temperature and humidity sensor is a contains posite of the temperature and humidity sensor has been calibrated digital signal output. It dedicated digital module acquisition technology and the temperature and humidity sensor technology, ensure that the product has a high reliability and excellent long-term stability. Sensor consists of a resistance type moisture element and a NTC temperature measuring element, and connected to a high-performance 8-bit microcontroller.
8051 microcontroller is often used to control chip, using 8051 single chip puter to achieve temperature and humidity automatic control of the distance, and 8051 single-puter is easy to learn.
Using 8051 single-chip puter temperature and humidity control system, can quickly and accurately response immediately change of temperature in the greenhouse. Finish such as heating up to a specific temperature for alarm, attract attention.
Keywords: 8051  DHT11  
目录
前言…………………………………………………………………………………………5
第一章系统总体设计……………………………………………………………………..5
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