Method for controlling surface irrigation based on surface water depth information
US10455781B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 22, 2016 |
| Grant date | Oct 29, 2019 |
| Priority date | — |
| Expiry date | Mar 22, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B13/042
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method for controlling surface irrigation comprising: 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 into the surface irrigation model, to obtain analog 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 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 optimized soil infiltration parameters again into the surface irrigation model, and adjusting an irrigation duration according to the prediction result.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.