单片机智能加湿器的设计(单片机毕业设计代做）
智能加湿器市场调研
摘要：随着生活水平的提高和科学技术的发展，加湿器开始引起人们的关注，不论是，车间， 仓库，工厂，还是卧室，智能加湿器随处可见，并且有着极其重要的作用。但是，常规的湿器只是简单地持续加湿.对湿度的调节能力差，容易过度加湿，并且缺乏对水位的检测管理，缺乏安全性。而无论是在科学试验还是日常生活中及工业生产中，不仅要求准确有效的控制湿度，还要确保加湿的安全性。
因此，需要设计一款智能加湿器来有效的调节控制加湿，当环境湿度偏低则开始加湿，达到设定的湿度时就停止加湿，总是把湿度控制在适宜的状态下。水位低时自动报警并且停止加湿，确保加湿的安全性。有效地防干烧和过度加湿，实现加湿器的智能化。目前市面上具有此类功能的加湿器还没有被广泛使用，因此具有良好的市场前景和开发价值。
本次设计为单片机智能加湿器系统，以温湿度传感器DHT11STC89C52为设计核心，利用湿度传感器将温湿度信号进行采集并转换成数字信号，利用单片机进行数据分析和处理，实现智能开启和关闭加湿功能,用LED灯的亮灭模拟控制以达到对湿度的调节。外接辅助电路实现加湿器的防干烧以及室内相对湿度的实时显示功能。系统电路简单、检测精度高、读取方便，具有较高的可靠性和实用价值。
关键词: 加湿器; STC89C52;DHT11
Intelligent humidifier Market Research
Abstract：With the development of science and technology and the improvement of living standards, Humidifier began to enter People‟s vision,for example factory,warehouse,workshop,and bedroom,humidifier can be seen everywhere to play an extremely important role in. Regular humidifier just continues humidification simply,the humidity control ability is poor and makes excessive humidifying easily,it also lack of detection and management of the water level and the security is weak.But in both daily life and scientific experiments and industrial production,not only requires effective control humidity accurately,but also need to ensure the safety of humidification.
Therefore,we have to choose the Automatic humidifier to effectively adjust and control the humidity,when the environment humidity is low the humidifier begin to humidify and stop to humidify until reach the set temperature,always control the humidity in suitable condition,automatic alarm and stop humidification when the water level is low to ensure the safety of humidification.Effective prevent dry and excessive humidifying to implement the intelligent of the humidifier.Currently on the market which has the function of this kind of humidifier has not been widely used,so it will have broad market and great development value.Use the light LED lights analog the control to adjust the humidity.
The design of microcontroller-based intelligent temperature and humidity detection system, the design is on two important factors in intelligent detection, the STC89C52 and humidity sensors DHT11 as the core。Use the humidity sensor to acquist the temperature and humidityand translate into digital signal and then use the SCM for data analysis and processing to implementation the intelligent open and close,with light the LED lights to analog control to adjust the humidity.With external auxiliary circuit implementation to prevent humidifier from the dry and realize the indoor relative humidity real-time display function.The system has the advantages of simple circuit, easy reading, highdetection precision, and high reliability and practical value.
Keywords: Humidifier;alarm；STC89C52;DHT
目录
第一章绪论
1.1 课题背景和意义…………………………………………………… 1
1.2 发展趋势…………………………………………………………… 1
第二章 功能描述与总体框图
2.1 功能描述…………………………………………………………… 3
2.2 总体框图…………………………………………………………… 4
第三章 关键器件介绍
3.1 单片机：stc89c52………………………………………………… 7
3.2 DHT11数字温湿度传感器………………………………………… 9
3.3 1602液晶显示……………………………………………………… 10
第四章 硬件电路和软件设计及系统调试
4.1 时钟模块…………………………………………………………… 13
4.2 DHT11数字温湿度传感器模块…………………………………… 14
4.3 1602液晶显示模块……………………………………………… 16
4.4 按键部分…………………………………………………………… 17
4.5 系统工作原理……………………………………………………… 18
4.6 主程序设计………………………………………………………… 18
4.7 湿度检测模块设计………………………………………………… 19
4.8 液晶显示模块设计………………………………………………… 20
4.9 仿真实物…………………………………………………………… 21
总结……………………………………………………………………………… 24
致谢……………………………………………………………………………… 25
参考文献………………………………………………………………………… 26
参考文献
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