基于模糊控制的智能浇灌系统设计

The Design of Intelligent Irrigation System Based on Fuzzy Control

灌溉用水占用水总量的比例较大,提高灌溉用水的利用率可节约大量的水资源。针对目前灌溉系统存在的灌溉用水利用率低、浪费人力和易灌溉过量等缺点,设计了一个智能灌溉系统。该系统将检测到的土壤湿度和设置土壤湿度下限进行比较,若检测值低于设置的下限值则直接灌溉一个灌溉周期,若高于下限值则利用构建的两级双层模糊控制器对灌溉时长进行决策,实现对灌溉用水量的智能控制。仿真结果表明,该系统能够根据作物所处生育期和灌溉时间点是否适宜自动调节灌溉时长,能够较好地满足作物的生长规律,对提高灌溉用水的利用率和作物产量有促进作用。

Irrigation water takes up a large proportion of the total water consumption,so increasing the utilization rate of irrigation water can save a lot of water resources.This paper designs an intelligent irrigation system to solve the problems in the current irrigation system,such as low utilization rate of irrigation water,waste of manpower and overirrigation.The system compares the detected soil moisture content with the set minimum level of soil moisture content.If the detected value is lower than the set minimum value,the irrigation system starts irrigating for one irrigation period.If the detected value is higher than the set minimum value,the system uses its double level bilayer fuzzy controller to make decisions on the irrigation duration to realize intelligent control of the irrigation water consumption.The simulation results show that the system can automatically adjust the irrigation duration according to the growing period of the crops and the timing of the irrigation,so it matches the growth law of the crops and improves the utilization rate of irrigation water and crop yield.