Adaptive irrigation of vegetation

Fluid sprinkling – spraying – and diffusing – Processes

Reexamination Certificate

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Details

C239S063000, C239S069000, C239S070000, C239S200000, C700S014000, C700S284000, C137S078300

Reexamination Certificate

active

11328905

ABSTRACT:
Adaptive irrigation of vegetation is achieved with a probe implanted into the soil for detecting rootage wetness needs by measuring soil impedance with contacts distributed along the probe. When a dryness threshold indicating rootage needs is met at a depth ZBEGINpreviously entered into a control logic coupled to the probe, then irrigation is started. Irrigation is stopped when a wetness front is detected at depth Zend(i) automatically provided by the control logic. The depth of arrest of the drainage front Zfinal(i)descending below the depth Zend(i)is compared with a depth ZFINAL, also previously entered into the control logic. The depth Zend(i)is adapted at each irrigation cycle i for the drainage front to stop at the depth ZFINAL. The probe may be used to determine the depth ZBEGINwhere resistance drops are detected first, by measuring resistance over time.

REFERENCES:
patent: 4176395 (1979-11-01), Evelyn-Veere et al.
patent: 4209131 (1980-06-01), Barash et al.
patent: 4646224 (1987-02-01), Ransburg et al.
patent: 4922433 (1990-05-01), Mark
patent: 4934400 (1990-06-01), Cuming
patent: 5207380 (1993-05-01), Harryman
patent: 5341831 (1994-08-01), Zur
patent: 5621669 (1997-04-01), Bjornsson
patent: 5740031 (1998-04-01), Gagnon
patent: 5927603 (1999-07-01), McNabb
patent: 6079433 (2000-06-01), Saarem
patent: 6088621 (2000-07-01), Woytowitz et al.
patent: 6108590 (2000-08-01), Hergert
patent: 6267298 (2001-07-01), Campbell
patent: 6314340 (2001-11-01), Mecham et al.
patent: 6532803 (2003-03-01), Hutchinson et al.
patent: 6618673 (2003-09-01), Zur
patent: 6937939 (2005-08-01), Shibusawa et al.

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