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Irrigation system utilizing actual and historical components of ET data

  • US 8,301,309 B1
  • Filed: 12/10/2010
  • Issued: 10/30/2012
  • Est. Priority Date: 11/09/2004
  • Status: Active Grant
First Claim
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1. An irrigation system, comprising:

  • a processor;

    at least one user input operatively connected to the processor for entry or selection of a watering program;

    a memory operatively connected to the processor for storing the watering program and a historical set of components of ET data;

    means for communicating to the processor a signal generated by at least one environmental sensor installed on an irrigation site, the signal representing an actual value to be substituted for a corresponding one of the components of the historical set;

    programming stored in the memory that enables the processor to calculate changes to a set of watering schedules including cycles and run times of the watering program based on any substituted actual value and the remaining historical set of components of ET data; and

    circuitry operatively connected to the processor that enables the processor to turn a plurality of valves ON and OFF in accordance with the watering program.

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