Di Xu,Caili Wu,Meijian Bai,Yinong Li,Fuxiang Li,Yuan Shi
申请号：
US15544130
公开号：
US20180249648A1
申请日:
2016.03.22
申请国别(地区):
US
年份:
2018
代理人:
摘要：
The present invention discloses a method for controlling surface irrigation based on surface water depth information, which belongs to the technical field of irrigation. The method comprises: measuring in real time surface water depths and water stream advancing durations of each of measuring points in a first half of a target farmland block, and substituting them into a surface irrigation model, to obtain initial values of soil infiltration parameters, substituting the initial values of the soil infiltration parameters into the surface irrigation model, to obtain analogue values of surface water depths of each of measuring points having water before a preset measuring point when the water stream in the first half of the target farmland block has advanced to the preset measuring point, by using the objective function that the average value of the errors of the measured values that are corresponding to it is minimum, reversely solving and optimizing the soil infiltration parameters, and substituting the optimized soil infiltration parameters again into the surface irrigation model, to predict a complete process of the surface irrigation, and adjusting an irrigation duration according to the prediction result, thereby realizing accurately controlling on the surface irrigation process. The method that is provided by the present invention can accurately control surface irrigation, to effectively improve the irrigation quality and promote the level of field management.
