毕业论文-基于51单片机的温湿度控制系统的设计与实现.doc

重庆第二师范学院 2018 届全日制本科生毕业论文 题 目 基于51单片机的温湿度控制系统 的设计与实现 教学学院 数学与信息工程学院 专业年级 2014级计算机科学与技术 (软件工程) 学生姓名 学号 指导教师 职称 2018 年 5 月 PAGE PAGE II 基于51单片机的温湿度控制系统的设计与实现 摘 要 在工农业生产的很多场景，都需要恒定的温湿度。其中最典型的就是蔬菜大棚种植，蔬菜大棚是通过对温湿度的控制营造一个最适宜蔬菜的生长环境，使蔬菜生长更快更绿色。所以如何很好的控制温湿度在一个恒定的范围内，如何设计一个简单、高效的温湿度控制系统是比较有意义的。本次设计采用的是51单片机系列中的AT89S51单片机和DHT11温湿度传感器构成的高性价比的温湿度控制系统。设计部分分为硬件电路设计和系统软件设计。硬件电路设计主要由AT89S51单片机、DHT11温湿度传感器、LCD1602显示器、控制设备等部分组成。其中由DHT11温湿度传感器和液晶显示器构成显示模块；由DHT11温湿度传感器和控制设备以及蜂鸣器组成控制模块。系统软件设计则是由按键软件设计和系统软件设计组成。 关键词：AT89S51单片机;温湿度;传感器 Abstract In many scenarios of industrial and agricultural production, constant temperature and humidity are needed. The most typical of which is the vegetable greenhouse planting, the vegetable greenhouse is through the control of temperature and humidity to create a most suitable growth environment for vegetables, so that the growth of vegetables faster and more green. So how to control temperature and humidity in a constant range, how to design a simple and efficient temperature and humidity control system is more meaningful. This design uses the AT89S51 microcontroller and DHT11 temperature and humidity sensor in the 51 MCU series to achieve the high cost performance temperature and humidity control system. The design part is divided into hardware circuit design and system software design. The hardware circuit design is mainly composed of AT89S51 microcontroller, DHT11 temperature and humidity sensor, LCD1602 display, control equipment and so on. The display module is composed of DHT11 temperature and humidity sensor and liquid crystal display, and a control module is composed of DHT11 temperature and humidity sensor, control device and buzzer. System software design is composed of key software design and system software