System and method for irrigation management

Patent metadata

Field	Value
Publication number	US-9326461-B2
Application number	US-201313803223-A
Country	US
Kind code	B2
Filing date	Mar 14, 2013
Priority date	Mar 14, 2013
Publication date	May 3, 2016
Grant date	May 3, 2016

Abstract

An irrigation management system includes a water pump, at least one mobile irrigation system, and a pump controller. The mobile irrigation system includes a water pressure sensor for generating water pressure data indicating water pressure in the irrigation system. The pump controller is configured to receive the water pressure data generated by the water pressure sensor, to compare a target water pressure with the sensed water pressure data to determine a difference between the target water pressure and the sensed water pressure, and to adjust operation of the water pump to increase or decrease water pressure to the irrigation system in a manner that resolves the difference between the target water pressure and the sensed water pressure.

First claim

Having thus described various embodiments of the invention, what is claimed as new and desired to be protected by Letters Patent includes the following:

1. An irrigation management system for controlling one or more water pumps supplying water to a plurality of mobile irrigation systems, the irrigation management system comprising:
a controller configured to:
receive water pressure data from each of the mobile irrigation systems;
compare the water pressure data from each of the mobile irrigation systems with a target water pressure to determine differences between the water pressure data from each of the mobile irrigation systems and the target water pressure;
determine whether the differences indicate that water pressure of at least one of the mobile irrigation systems is lower than the target water pressure;
if the differences indicate that water pressure of at least one of the mobile irrigation systems is lower than the target water pressure, determine which of the differences indicates a greatest deviation below the target water pressure; and
adjust operation of the one or more water pumps to increase water pressure to the irrigation systems in a manner that resolves the difference indicating the greatest deviation below the target water pressure.

2. The irrigation management system of claim 1 , the controller configured to adjust operation of the one or more water pumps only when the difference indicating the greatest deviation below the target water pressure is greater than a predetermined amount.

3. The irrigation management system of claim 2 , the predetermined amount being between two percent and ten percent of the target water pressure.

4. The irrigation management system of claim 2 , the predetermined amount being between 1 psi and 10 psi.

5. The irrigation management system of claim 1 , the controller configured to adjust operation of the one or more water pumps to increase water pressure to the irrigation systems such that the difference indicating the greatest deviation below the target water pressure is resolved in a predetermined amount of time.

6. The irrigation management system of claim 5 , the predetermined amount of time being between one minute and five minutes.

7. The irrigation management system of claim 1 , the controller configured to adjust operation of the one or more water pumps within bounds of a maximum setpoint and a minimum setpoint.

8. The irrigation management system of claim 1 , the controller being implemented by a computer located remotely from the one or more water pumps and from the mobile irrigation systems.

9. An irrigation management system for controlling one or more water pumps supplying water to a plurality of mobile irrigation systems, the irrigation management system comprising:
a controller configured to:
receive water pressure data from each of the mobile irrigation systems;
compare the water pressure data from each of the mobile irrigation systems with a target water pressure to determine differences between the water pressure data from each of the mobile irrigation systems and the target water pressure;
determine whether the differences indicate that water pressure of at least one of the mobile irrigation systems is lower than the target water pressure;
if the differences indicate that water pressure of at least one of the mobile irrigation systems is lower than the target water pressure, determine which of the differences indicates a greatest deviation below the target water pressure;
adjust operation of the one or more water pumps to increase water pressure to the irrigation systems in a manner that resolves the difference indicating the greatest deviation below the target water pressure;
if the differences do not indicate that water pressure of at least one of the mobile irrigation systems is lower than the target water pressure, determine whether the differences indicate that water pressure of each of the mobile irrigation systems is higher than the target water pressure;
if the differences indicate that water pressure of each of the mobile irrigation systems is higher than the target water pressure, determine which of the differences indicates a smallest deviation above the target water pressure; and
adjust operation of the one or more water pumps to decrease water pressure to the irrigation systems in a manner that resolves the difference indicating the smallest deviation above the target water pressure.

10. The irrigation management system of claim 9 , the controller configured to, after determining which of the differences indicates the smallest deviation above the target water pressure, determine whether the difference indicating the smallest deviation above the target water pressure is greater than a predetermined threshold, and to adjust operation of the one or more water pumps only if the difference indicating the smallest deviation above the target water pressure is greater than the predetermined threshold.

11. The irrigation management system of claim 9 , the controller configured to, after determining which of the differences indicates the greatest deviation below the target water pressure, determine whether the difference indicating the greatest deviation below the target water pressure is greater than a first predetermined threshold, and to adjust operation of the one or more water pumps only if the difference indicating the greatest deviation below the target water pressure is greater than the first predetermined threshold.

12. The irrigation management system of claim 11 , the controller configured to, after determining which of the differences indicates the smallest deviation above the target water pressure, determine whether the difference indicating the smallest deviation above the target water pressure is greater than a second predetermined threshold, and to adjust operation of the one or more water pumps only if the difference indicating the smallest deviation above the target water pressure is greater than the second predetermined threshold, the second predetermined threshold differentiating from the target threshold more the first predetermined threshold.

Assignees

• Lindsay Corp

Inventors

• Wolgast Cory

Classifications

• A01G25/092 Primary

  movable around a pivot centre · CPC title

• A01G25/16 Primary

  Control of watering · CPC title

• G05B2219/2625

  Sprinkler, irrigation, watering · CPC title

• B05B12/085

  responsive to flow or pressure of liquid or other fluent material to be discharged (B05B1/3006, B05B1/323 take precedence; spray pistols designed to control volume of flow with the controlling means being fluid actuated B05B7/1254) · CPC title

• G05B19/042

  using digital processors (G05B19/05 takes precedence) · CPC title