Patent ID: 7133749
Filing Date: 2006-11-07
Classification: A01G,B05B,Y10T

Abstract:
1. A method of automatically adjusting, for optimum watering, the water delivery parameters of an irrigation system that waters at least one watering zone of a soil on a selectable watering cycle schedule, comprising the steps of: a) sensing moisture levels of said soil in said zone and producing a signal having values representative of said moisture levels; b) establishing a target value of said signal representative of an optimal moisture level; c) providing a set of values of said signal that correlate with amounts of water delivered by said irrigation system; d) causing said irrigation system to deliver an amount of water corresponding to the pre-irrigation value of said signal present at the start of a watering cycle; e) comparing the post-irrigation value of said signal at a selected time after the end of said watering cycle to said target value; and f) modifying the correlation of said set of values with said amounts of water delivered in accordance with any significant difference between said post-irrigation value and said target value.