摘 要 伴随大棚技术普及，温室大棚数量不停增多，对于蔬菜大棚来说，最主要一个管理原因是温湿度控制。温湿度太低，蔬菜就会被冻死或则停顿生长，所以要将温湿度一直控制在适合蔬菜生长范围内。传统温度控制是在温室大棚内部悬挂温度计，工人依据读取温度值来调整大棚内温度。假如仅靠人工控制既耗人力，又轻易发生差错。现在，伴随农业产业规模提升，对于数量较多大棚，传统温度控制方法就显现出很大局性。为此，在当代化蔬菜大棚管理中通常有温湿度自动控制系统，以控制蔬菜大棚温度，适应生产需要。 本论文主要阐述了基于AT89C51单片机温室大棚温湿度控制系统设计原理，主要电路设计及软件设计等。该系统实行AT89C51单片机作为控制器，SHT11作为温湿度数据采集系统，可对执行机构发出指令实现大棚温湿度参数调整，根据实际需求设计了单片机硬件系统，该系统能够实现数据采集，数据处理，数值显示，键盘扫描等功效功效。同时介绍了温湿度传感器，单片机接口，及其应用软件设计，该基于单片机和SHT11温湿度传感器大棚温湿度控制系统，该系统性能可靠，结构简单，能实现对温室内温湿度自动调整。 关键词：AT89C51；SHT11；大棚；温湿度；控制系统；传感器；单片机 Abstract With the popularization of trellis technology, greenhouse trellis an ever-growing number, for vegetable shed speaking, one of the most important management factor is temperature and humidity control. Temperature is too low, the vegetables will freeze to death or stop growing, so will always control temperature and humidity in a suitable vegetable growth range. Traditional temperature control is in greenhouse trellis internal hanging a thermometer, workers according to regulate the temperature reading the temperature inside the shelter. If only by artificial control both consumption manpower, and easy to place regular orders. Now, with the improvement of agricultural industry for larger quantity of trellis, traditional temperature control measures will show great bureau sex. Therefore, in modern vegetable shed management zhongtong often temperature and humidity...
