温室节水自动喷灌系统的设计

Design of Automatically Sprinkling Irrigation System to Water Saving in Greenhouse

利用传感器技术实时采集温室环境的空气温湿度、土壤水分和光照度等因子,单片机将数据进行分析处理做出合理的控制决策,控制执行器进行自动喷灌,实现了计算机自动控制,按需、按期和按量喷灌。系统主要由温室环境信息采集模块、单片机AT89C52模块和控制模块组成,采集模块包括光照度传感器2DU6硅光电池、土壤水分传感器TDR-3和空气温湿度传感器LTM-8901。本系统环保节能、节水、省力,具有很好的实用性和推广性。

In our country, irrigation mode in the greenhouse is still flood irrigation, which not only wastes water resources in short supply, but also restricts the increase of the crop output and the improvement of its quality in the greeenhouse. The paper used sensor technology to real-time do acquisition of the temperature and humidity of air, the moisture content of soil and the illuminance in the greenhouse. The SCM （Single Chip Micyoco） gived a reasonable control decision by analysing these data to do automatically sprinkling irrigation by control the actuator. The system achieves computer auto- matic control, sprinkling irrigation by need, time and quantity. The system is composed of data collection module, the single-chip AT89C52 module and control module. The data collection module includes luminance sensor 2DU6 silicon photocell, the soil moisture sensor TDR-3 and the temperature-humidity sensor LTM-8901. It is energy-saving, environmental protection, energy saving, so the system hasa certain practicality and potential replication.