1、I 毕毕 业业 设设 计（论文）计（论文） 2010 届 题 目 温室温湿度控制系统温室温湿度控制系统 专 业 电子信息工程电子信息工程 学生姓名 学 号 指导教师 论文字数 完成日期 I 温室温湿度控制系统温室温湿度控制系统 摘要：摘要：随着现代农业的快速发展，大棚温室栽培作物为人们提供了许许多多的健康农产品。 大力开发温室栽培作物可以创造良好的社会效益和经济效益。 而温室的智能控制系统将直接 影响温室的作物产量。 近年来， 单片机技术和各种传感器技术的发展使得温室智能控制系统 的更加完善。 虽然现在很多大型农场对于温室的智能控制系统有了一定的应用， 但其高昂的 成本还是不能做到全面的普及。
2、正对这一实际情况，开发一套低廉，高性能的温室温湿度控 制系统， 在郊区和一些小农场具有非常广泛的应用前景和实际意义。 本文以 AT89C52 单片机 为主控芯片，结合 DHT21 电容式数字温湿度传感器，8 位数码管显示等设计了一款简单易操 作的温室温湿度控制系统。相对其他的温室智能系统，该设计有价格低廉，性能优越，安全 性稳定性高等优点。 关键词：关键词：单片机，AT89C52，温湿度传感器，温室温湿度控制系统 II Temperature and Humidity Control System of Greenhouse Abstract: With the rapid developme
3、nt of modern agricultures , greenhouse crops has provided people with many healthy agricultural products. Developing greenhouse crops with great efforts can create good social and economic benefits. Meanwhile,the greenhouses intelligent control system will directly affect the production of greenhous
4、e crops. In recent years, single chip technology and various of sensor technologies have made the greenhouse intelligent control system more useful. Although the greenhouse intelligent control system has had certain applications in many large farms , because of its high cost, it still can not be wid
5、ely populized. In order to face this actual situation, it is practical and prospective to develop a cheap, high-performance greenhouse temperature and humidity control system in the suburbs and small farms .This paper uses A T89C52 microcontroller as the main chip combined with DHT21 capacitive digi
6、tal temperature and humidity sensors, as well as 8-segments tube display , it designed a simple and easy greenhouse temperature and humidity control system. Compared with other greenhouse intelligent system, it enjoys the advantages of low-cost, superior performance, security and stability . Key words: microcontroller, A T89C52, temperature and humidity sensor, Temperature and Humidity Control System III 目
