Device, system, and method of irrigation

摘要

An irrigation system for irrigating a plant having a root comprises: a valve to begin irrigation from a water source at a first time-point; a moisture sensor to sense moisture at a second, subsequent, time-point, said moisture sensor being located underground at an insertion depth between ground surface and a maximum depth of the root; a water drainage speed calculator to calculate a water drainage speed based on the first time-point, the second time-point, and the insertion depth of the moisture sensor; and a target drainage time calculator to calculate a remaining time for irrigation, based on the calculated water drainage speed and further based on a difference between the insertion depth and the maximum depth of the root.

主权项

1. An irrigation system for irrigating a plant having a root, the irrigation system comprising:
a valve to begin irrigation from a water source at a first time-point; a single moisture sensor to sense moisture at a second, subsequent, time-point, said moisture sensor being located underground at an insertion depth between ground surface and a maximum depth; a water drainage speed calculator to calculate a water drainage speed based on the first time-point, the second time-point, and the insertion depth of the moisture sensor; and a target drainage time calculator to calculate a remaining time for irrigation, based on the calculated water drainage speed and further based on a difference between the insertion depth and the maximum depth.