System and method for consistent depth seeding to moisture

• US 9,801,332 B2
• Filed: 09/30/2015
• Issued: 10/31/2017
• Est. Priority Date: 09/30/2015
• Status: Active Grant

• Current Assignee: Deere & Company
• Original Assignee: Deere & Company
• Inventors: Landphair, Donald K., Green, Lawrence D.
• Primary Examiner(s): WEISS, JOHN
• Application Number:
  US14/871,458
• Publication Number:
  US 20170086359A1
• Time in Patent Office: 762 Days
• Field of Search: 111 69, 111149, 701 50
• CPC Class Codes: A01C 21/00 Methods of fertilising , sowing or planting
• CPC Class Codes: A01C 5/06 Machines for making or covering drills or furrows for sowing or planting
• CPC Class Codes: A01C 5/068 Furrow packing devices, e.g. press wheels
• CPC Class Codes: A01C 7/203 comprising depth regulation means

Abstract

A seeding machine includes a main frame and a row unit coupled to the main frame. The row unit includes a row unit frame, a gauge wheel coupled to the row unit frame, a furrow opener coupled to the row unit frame, the furrow opener having a stationary or rotating surface that contacts and moves soil, and a furrow closer coupled to the row unit frame, the furrow closer having a stationary or rotating surface that contacts and presses soil. The seeding machine also includes a seeding adjustment system including a soil removal device, a moisture sensor, a controller configured to receive a signal from the moisture sensor corresponding to the detected moisture level, and an actuator configured to change a position of the soil removal device based on the signal received by the controller.

Claims

1. A seeding machine comprising:

a main frame;

a row unit coupled to the main frame, the row unit having a row unit frame, a gauge wheel coupled to the row unit frame, a furrow opener coupled to the row unit frame, and a furrow closer coupled to the row unit frame; and

a seeding adjustment system including a soil removal device, the soil removal device having a stationary or rotating surface that contacts and removes one or more layers of soil ahead of the furrow opener, a moisture sensor configured to detect a moisture level at the one or more layers of soil ahead of the furrow opener, an actuator coupled to the soil removal device to move the soil removal device, and a controller configured to receive a signal from the moisture sensor corresponding to the detected moisture level and to cause the actuator to change a position of the soil removal device based on the signal received by the controller, such that as the seeding machine moves forward, seeds are planted at both a consistent seed planting depth and at a consistent moisture level.

2. The seeding machine of claim 1, wherein the moisture sensor is coupled to the row unit.

3. The seeding machine of claim 2, further comprising a seed firmer device coupled to the row unit frame, wherein the moisture sensor is coupled to the seed firmer device.

4. The seeding machine of claim 1, wherein the soil removal device is selected from a group consisting of a V-wing, a row cleaner, and a disk blade.

5. The seeding machine of claim 1, wherein the actuator is disposed between the row unit frame and the soil removal device.

6. The seeding machine of claim 5, wherein the actuator includes a linkage coupled to both the row unit frame and to the soil removal device.

7. The seeding machine of claim 1, wherein the actuator includes a hydraulic arm.

8. The seeding machine of claim 1, wherein the actuator includes a pneumatic arm.

9. The seeding machine of claim 1, wherein the row unit includes a seed metering device configured to meter seeds into a furrow, and wherein the consistent seed planting depth is measured from a top surface of the soil as the seeding machine moves forward, regardless of a position of the soil removal device.

10. The seeding machine of claim 1, wherein the one or more layers of soil includes a first layer of soil, wherein when the controller determines that a moisture level of the first layer of soil is not optimal, the controller is configured to activate the actuator such that the soil removal device is lowered to remove the first layer of soil.

11. The seeding machine of claim 1, wherein the moisture sensor, the controller, and the actuator form a closed loop control, such that the moisture sensor continuously monitors moisture levels in the one or more layers of soil and send signals to the controller, and the actuator continuously adjusts a position of the soil removal device based on signals received from the controller, to maintain both the consistent seed planting depth and the consistent moisture level.

12. The seeding machine of claim 1, wherein the row unit is one of a plurality of row units coupled to the main frame, wherein each row unit includes an associated actuator, and wherein the actuators are coupled to a single controller, such that the single controller controls each of the associated actuators individually.

13. The seeding machine of claim 12, wherein the moisture sensor is one of a plurality of moisture sensors that are each coupled to the single controller, and wherein each moisture sensor is associated with a different row unit.

14. The seeding machine of claim 1, wherein the row unit is one of a plurality of row units coupled to the main frame, and wherein each of the row units includes its own associated controller, its own associated moisture sensor, and its own associated actuator, such that each controller only communicates with the moisture sensor and the actuator associated with a single row unit.

15. The seeding machine of claim 1, wherein the row unit is one of a plurality of row units coupled to the main frame, wherein each row unit includes an associated actuator and soil removal device, wherein the moisture sensor is a single moisture sensor, and wherein the position of each soil removal device is identical based on the moisture level detected by the single moisture sensor.

16. A seeding machine comprising:

a controller having a processor configured to;

detect a moisture level of a first layer of soil with a moisture sensor coupled to a row unit on the seeding machine;

determine whether the moisture level is outside of a predetermined range; and

in response to determining that the moisture level is outside of the predetermined range, lower a soil removal device into the soil to remove the first layer of the soil such that as the seeding machine moves forward, seeds are planted at both a consistent seed planting depth and at a consistent moisture level, the soil removal device including a stationary or rotating surface that contacts and removes the first layer of soil.

17. The seeding machine of claim 16, wherein the processor is configured to, after lowering the soil removal device, detect that the moisture level has become optimal in the first layer of soil and then raise the soil removal device.

18. The seeding machine of claim 16, wherein the processor is configured to, after lowering the soil removal device, detect that the moisture level is not optimal and then lower the soil removal device a second time.

19. A seeding machine comprising:

a main frame;

a row unit coupled to the main frame, and

a seeding adjustment system coupled to the row unit, the seeding adjustment system including;

a soil removal device, the soil removal device selected from a group consisting of a V-wing, a row cleaner, and a disk blade, the soil removal device having a stationary or rotating surface that contacts and moves one or more layers of soil;

a moisture sensor coupled to the row unit and configured to detect a moisture level at the one or more layers of soil;

a controller configured to receive a signal from the moisture sensor corresponding to the detected moisture level; and

an actuator configured to change a position of the soil removal device based on the signal received by the controller, the actuator selected from a group consisting of a hydraulic actuator, a pneumatic actuator, and an electronic actuator;

wherein the controller is configured to cause the actuator to change the position of the soil removal device in response to the received signal such that as the seeding machine moves forward, seeds are planted at both a consistent seed planting depth and at a consistent moisture level.