智能型实验室温湿度控制器设计.doc
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1、 本科生毕业论文(设计)智能型实验室温湿度控制器设计院系名称姓名学号专业指导教师 年4月25日摘要现如今对于温度和湿度的控制已成为人类研究的热门项目,同时也是工、农业生产过程中必须考虑的因素。因此温度和湿度已经不再是相互独立的物理量,而应该在整体中综合考虑。温湿度控制器广泛应用于实验室、粮仓、大棚乃至土壤等各个领域。传统的温湿度控制主要通过人工进行检测,这种人工测试的方法不仅费时费力、效率低,而且随机性、误差性都比较大。因此就需要一种造价低廉、使用方便并且计算准确的温湿度控制仪器。利用单片机对温以及湿度的控制,具有控温、湿精度高、功能强、体积小、价格低,简单灵活等优点,很好的满足了人类的要求。
2、本设计通过使用AT89S52单片机、DHT11传感器模块、1602液晶显示屏模块以及报警模块。简单明了的实现了课题的要求。DHT11数字温湿度传感器把采集到的温湿度数据传递给单片机。经过AT89S52单片机的处理,准确的显示到液晶屏上,并对温湿度设置上下限,超限就会报警。关键词:AT89S52单片机;数字式温湿度传感器;1602液晶显示屏;报警器 AbstractThe temperature and the humidity control have become a popular project in todays social studies. Is the industry and
3、farming production process must be considered the factors. As the important common is accused of parameters. Temperature and humidity is no longer the independent of each other physical quantities, and in the overall system should be considered.It is Widely used in laboratory, flower bed,awning, oth
4、er fields, and granaries and soil. However the traditional temperature and humidity control is use of humidity table, humidity dipstick test equipment, double metal type gauge and hair humidity table. Through the artificial testing. Not in keep with the demand of the temperature and humidity supply
5、to wet operation, ventilation, cooling. This artificial testing time-consuming, the work piece ratio is low. Cut large probabilistic. Error. For that reason the need a cheap , easy to use and the accurate temperature and to control instruments. Therefore Using a single microcomputer to control the t
6、emperature and the humidity, temperature control, wet with accurate and power function, small volume, advantages, low price, such as simple quick-response, meet the technological requirements.This article adopt the use of AT89S52 microcontroller, 1602 LCD screen module, alarm module and DHT11 sensor
7、 module. Simple and manifest implementation to achieve the article of demanding. DHT11 digital temperature and humidity sensors to the collect of temperature and humidity data to the STC89C52 microcontroller. The processing of unitary chip. Exact displayed on the LCD panel. As well as the temperatur
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