1results about How to "Water saving is obvious" patented technology

This invention relates to the field of agricultural automation and intelligent irrigation technology, and particularly to a variable irrigation decision system, comprising: a meteorological data acquisition module for acquiring daily meteorological data of a designated farmland within a first future time period starting from the current time; a soil monitoring module for real-time monitoring of soil data of the designated farmland; a data processing module for acquiring, based on the daily meteorological data and the current soil data of the designated farmland within the first future time period, the current soil moisture content, daily evapotranspiration, and daily soil drainage within the first future time period of the designated farmland, and further acquiring the soil moisture content of the designated farmland after a first preset time period; and a control module for determining the current irrigation demand of the designated farmland and issuing a first irrigation instruction to the irrigation device corresponding to the designated farmland; the first irrigation instruction is an instruction to irrigate the designated farmland according to the current irrigation demand of the designated farmland.