Electronic control unit for automatic sprinkling system

Details Electronic control unit for automatic sprinkling system Electronic control unit for automatic sprinkling system

1992-03-16

1993-03-16

Chambers, A. Michael

Fluid handling

Ambient condition change responsive

For controlling soil irrigation

239 70, 13762412, F16K 1736

Patent

active

051935708

ABSTRACT:
An automatic irrigation and sprinkling system for applying irrigation water or airborne dispersed water to a particular area. A precipitation sensor is included for incrementing a counter based upon the sensed precipitation. During a scheduled irrigation event, power is applied to the system to open one or more solenoid valves to control the flow of water. This main power signal would flow uninterruptedly to the solenoid valves only if the counter was at a predetermined value. A value greater than this predetermined value during a scheduled irrigation event would cause the power to be interrupted to the solenoid valves and would allow the counter to begin decrementing. If the value of the counter reaches this predetermined value during the scheduled irrigation event, power would again be supplied to the solenoid valves, thereby supplying water to the predetermined area.

REFERENCES:
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patent: 3212714 (1965-10-01), Davis et al.
patent: 3500844 (1970-03-01), Sanner
patent: 4059227 (1977-11-01), Hunter
patent: 4304989 (1981-12-01), Vos et al.
patent: 4644786 (1987-02-01), Jacobsen et al.
patent: 4921001 (1990-05-01), Pittsinger

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