SYSTEM AND METHOD FOR IRRIGATION MANAGEMENT

• US 20160227717A1
• Filed: 04/20/2016
• Published: 08/11/2016
• Est. Priority Date: 03/14/2013
• Status: Active Grant

• Current Assignee: Watertronics, LLC (Lindsay Corporation)
• Original Assignee: Lindsay Corporation
• Inventors: WOLGAST, CORY
• Granted Patent: US 9,750,204 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: A01G 25/092 movable around a pivot centre
• CPC Class Codes: A01G 25/16 Control of watering
• CPC Class Codes: B05B 12/085 responsive to flow or pressure of liquid or other fluent material to be discharged B05B1/3006, B05B1/323, B05B7/1254 take precedence
• CPC Class Codes: G05B 19/042 using digital processors G05B19/05 takes precedence
• CPC Class Codes: G05B 2219/2625 Sprinkler, irrigation, watering

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.

Claims

1. An irrigation management system for controlling a plurality of irrigation systems, the irrigation management system comprising:

a controller configured to;

compare water pressure data from each of the irrigation systems with a target water pressure to determine differences between the water pressure data from each of the irrigation systems and the target water pressure;

determine whether the differences indicate that water pressure of at least one of the irrigation systems is lower than the target water pressure;

if the differences indicate that water pressure of at least one of the 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 water pressure of 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 water pressure of the irrigation systems 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 water pressure of 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 water pressure of the irrigation systems 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 irrigation systems.

9. An irrigation management system for controlling one or more water pumps supplying water to a plurality of irrigation systems, the irrigation management system comprising:

a controller configured to;

receive water pressure data from each of the irrigation systems;

compare the water pressure data from each of the irrigation systems with a target water pressure to determine differences between the water pressure data from each of the irrigation systems and the target water pressure;

determine whether the differences indicate that water pressure of at least one of the irrigation systems is lower than the target water pressure;

if the differences indicate that water pressure of at least one of the 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.

10. The irrigation management system of claim 9, 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.

11. The irrigation management system of claim 10, the predetermined amount being between two percent and ten percent of the target water pressure.

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

13. The irrigation management system of claim 9, 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.

14. The irrigation management system of claim 13, the predetermined amount of time being between one minute and five minutes.

15. The irrigation management system of claim 9, the controller configured to adjust operation of the one or more water pumps within bounds of a maximum setpoint and a minimum setpoint.

16. The irrigation management system of claim 9, the controller being implemented by a computer located remotely from the one or more water pumps and from the irrigation systems.

17. An irrigation management system for controlling one or more water pumps supplying water to a plurality of irrigation systems, the irrigation management system comprising:

a controller configured to;

receive water pressure data from each of the irrigation systems;

compare the water pressure data from each of the irrigation systems with a target water pressure to determine differences between the water pressure data from each of the irrigation systems and the target water pressure;

determine whether the differences indicate that water pressure of at least one of the irrigation systems is lower than the target water pressure;

if the differences indicate that water pressure of at least one of the 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 irrigation systems is lower than the target water pressure, determine whether the differences indicate that water pressure of each of the irrigation systems is higher than the target water pressure;

if the differences indicate that water pressure of each of the 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.

18. The irrigation management system of claim 17, 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.

19. The irrigation management system of claim 17, 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.

20. The irrigation management system of claim 19, 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.