Closed loop control system, sensing apparatus and fluid applicat

Details Closed loop control system, sensing apparatus and fluid applicat Closed loop control system, sensing apparatus and fluid applicat

1997-09-30

1999-07-27

Kashnikow, Andres

Fluid sprinkling, spraying, and diffusing

With cutoff or flow varying means operated by means...

239 69, 239 71, 239 74, 239728, A01G 2500, B67D 508

Patent

active

059276037

ABSTRACT:
An automatic irrigation system includes a movable irrigation device having a fluid delivery nozzle and a fluid manifold positioned along the mobile irrigation device and adapted to receive irrigation fluid from a supply source. The system includes a detector of moisture present within an agricultural field including an output on which signals representing the detected moisture level are placed. The system also includes an electronic storage device having an addressing and reproduction unit that can selectively address and reproduce a plurality of stored command signals. The system also includes first electronic circuitry coupled to the storage device and including an input for command control signals reproduced from the storage device. The electronic circuitry applies the reproduced command control signal to cause the detector to detect moisture from a plurality of different locations within an agricultural field. A second electronic circuitry compares the detected moisture level at each location within the agricultural field with the reproduced command control signals to ascertain whether the moisture level matches the moisture level indicated by the command control signals. One of the first and the second electronic circuitry produces signals for controlling the fluid nozzle in response to the feedback signal from the detector to impart a desired application of irrigation fluid to the agricultural field. Another embodiment includes a sprinkler for an irrigation system having a fluid nozzle and a fluid flow sensor for detecting fluid flow from the nozzle.

REFERENCES:
patent: Re31023 (1982-09-01), Hall, III
patent: 3803570 (1974-04-01), Barlow et al.
patent: 4015366 (1977-04-01), Hall, III
patent: 4186880 (1980-02-01), Jacobi et al.
patent: 4197866 (1980-04-01), Neal
patent: 4249698 (1981-02-01), Smith et al.
patent: 4396149 (1983-08-01), Hirsch
patent: 4569481 (1986-02-01), Davis et al.
patent: 4662563 (1987-05-01), Wolfe
patent: 4683904 (1987-08-01), Iltis
patent: 4693419 (1987-09-01), Weintraub et al.
patent: 4852802 (1989-08-01), Iggulden et al.
patent: 5060859 (1991-10-01), Bancroft
patent: 5097861 (1992-03-01), Hopkins et al.
patent: 5176320 (1993-01-01), Kraus et al.
patent: 5193744 (1993-03-01), Goldstein
patent: 5246164 (1993-09-01), McCann et al.
patent: 5278749 (1994-01-01), De Man
patent: 5337957 (1994-08-01), Olson
patent: 5341831 (1994-08-01), Zur
patent: 5478013 (1995-12-01), Ballu
patent: 5847568 (1998-12-01), Stashkiw et al.
"Terminology|", Business Geographics, Jul./Aug. 1995, p. 8.
GPS World Magazine, Jun. 1995, cover page and p. 4.
GIM International Journal for Geomatics, the 100th edition of GIM, cover page and editorial page.
GIS World, Jul. 1995, cover page and p. 10.
"Irrigation by the inch", Farm Journal, Sep. 1995, cover sheet and p. A-2.
"Precision Agriculture: Will It Change the Way You Market?", Ag Retailer, Mar. 1995, pp. 52, 54-55.
"ArcView for Agriculture" and "ESRI GIS Solutions for Agriculture" (advertisements).
"Make Way for Site-Specific", Farm Chemicals, p. 20.
"Start Making Sense", by D.D. Francis and J.S. Schepers, Farm Chemicals, mid-Mar. 1997, pp. 20, 22.
"Can Computers Help Grow Quality Crops?" by Gary Rawlings (Ed.), Potato Grower, Mar. 1997, pp. 42-43.
"The Steering Wheel for Your Irrigation", EnviroSCAN, advertisement by Sentek PTY LTD, Adelaide, South Australia.
"Would you drive a tractor without a steering wheel . . . ", EnviroSCAN, advertisement by Sentek PTY LTD, Adelaide, South Australia.
"EnviroSCAN--The Soil Water Continuous Monitoring System", 1994 brochure by Sentek PTY LTD, Adelaide, South Australia.

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