Abstract:Irrigation water takes up a large proportion of the total water consumptionꎬ so increasing the utilization rate of ir ̄ rigation water can save a lot of water resources. This paper designs an intelligent irrigation system to solve the problems in the current irrigation systemꎬ such as low utilization rate of irrigation waterꎬ waste of manpower and overirrigation. The sys ̄ tem 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 valueꎬ the irrigation system starts irrigating for one irrigation period. If the detected value is higher than the set minimum valueꎬ the system uses its double level bilayer fuzzy controller to make decisions on the irriga ̄ tion 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 irrigationꎬ so it matches the growth law of the crops and improves the utilization rate of irrigation water and crop yield.