Seed meter monitoring system

• US 7,478,603 B2
• Filed: 05/18/2006
• Issued: 01/20/2009
• Est. Priority Date: 05/18/2006
• Status: Active Grant

• Current Assignee: Deere & Company
• Original Assignee: Deere & Company
• Inventors: Coordes, Duane Allen, Riewerts, Paul Reed
• Primary Examiner(s): Novosad; Christopher J.
• Application Number:
  US11/436,500
• Publication Number:
  US 20070266917A1
• Time in Patent Office: 978 Days
• Field of Search: 111/200, 111/900, 111/903, 111/904
• US Class Current: 111/200
• CPC Class Codes: A01C 7/046 with perforated seeding discs
• CPC Class Codes: A01C 7/102 Regulating or controlling the seed rate
• CPC Class Codes: A01C 7/105 Seed sensors
• CPC Class Codes: Y10S 111/90 Methods of planting seeds and miscellaneous compositions
• CPC Class Codes: Y10S 111/903 Monitor
• CPC Class Codes: Y10S 111/904 Population control function

Abstract

A detector is supported adjacent the seed cells within a seed meter housing and provides an indication of the presence or absence of seeds in the cells. A processor receives the seed presence indications and provides an operator readout to facilitate adjustments to the seed meter system to maintain a single seed per seed cell at the given seed population. In one embodiment, the detector is a video camera and the readout includes a slow motion rendering of the seed cells downstream of a seed singulator. In another embodiment, a light source is located on one side of the seed cells, and a light detector is located on the opposite side of the seed cell to determine presence or absence of material in the cell.

Claims

1. In an adjustable seed meter system having moving seed cells for picking up seeds and distributing the seeds towards the ground at a seed population per area of ground, a seed meter monitor comprising:

a detector supported adjacent the seed cells and providing seed presence signals indicative of the presence or absence of seeds in the cells as the cells move adjacent the detector; and

a processor receiving the seed presence signals and providing an indication of presence or absence of seeds in the seed cells to facilitate adjustments to the adjustable seed meter system to maintain a seed count per seed cell at the given seed population.

2. The seed monitor as set forth in claim 1 including a population monitor providing a seed count indication of the number of seeds distributed from the seed cells, and wherein the processor is responsive to the seed count indication and the seed presence signals to provide an indication of missing seeds in the seed cells and multiple seeds in the seed cells.

3. The seed monitor as set forth in claim 1 wherein the detector comprises a camera and the processor provides a still picture or slow motion video of the seed cells and seeds picked up by the seed cells to an operator.

4. The seed monitor as set forth in claim 3 wherein the camera is selectively positionable at one of a plurality of seed meters for monitoring seed meter system operation at the seed meters.

5. The seed monitor as set forth in claim 3 including an implement monitor providing an operator readout, wherein the processor provides video information to the implement monitor for review by the operator.

6. The seed monitor as set forth in claim 1 including an adjustable seed singulator for removing all but a single seed from each of the seed cells, wherein the detector is located adjacent the singulator for monitoring singulator operation.

7. The seed monitor as set forth in claim 1 wherein the detector comprises a light detector detecting the presence and absence of light passing through an aperture in the seed cell to provide an indication of an occupied or empty seed cell.

8. The seed monitor as set forth in claim 1 including a light source illuminating the seed cell adjacent the detector.

9. The seed monitor as set forth in claim 8 wherein the light source includes a light pipe terminating adjacent the seed cell.

10. The seed monitor as set forth in claim 1 including a viewing window adjacent the seed cells for visual monitoring of seed cell operation, wherein the detector is mounted to the viewing window.

11. The seed monitor as set forth in claim 10 wherein the viewing window is selectively attachable to and removable from the seed meter system.

12. The seed monitor as set forth in claim 1 wherein the moving seed cells comprise cell locations on a disk rotatable within a seed meter housing, and indexing located on the disk for synchronization of the detector and the processor.

13. In an adjustable seed meter system having moving seed cells within a seed meter housing for picking up seeds and distributing the seeds towards the ground at predetermined spacings and at a given seed population per area of ground, a seed meter monitor comprising:

a source of light located within the housing for illuminating the seed cells;

a detector supported within the housing adjacent the seed cells and providing seed presence signals indicative of the presence or absence of seeds in the cells as the cells move adjacent the detector;

a seed counter for providing a seed count indication;

a processor responsive to the seed presence signals and the seed count indication for detecting multiple seeds the seed cells and missing seeds in the seed cells; and

an adjustable seed retention control device adjustable in response to the seed presence signal and seed count indication for control of the number of seeds in the moving seed cells.

14. The seed monitor as set forth in claim 13 wherein the detector comprises a video camera and the processor provides slow motion video of the seed cells and seeds picked up by the seed cells to an operator.

15. The seed monitor as set forth in claim 13 wherein the detector comprises a light detector, and wherein the source of light is located on a first side of the seed cells and the light detector is located on a side of the seed cells opposite the first side for detecting the absence of seed in the seed cells.

16. The seed monitor as set forth in claim 13 wherein the adjustable seed retention control device includes a seed singulator for removing all but a single seed from each of the seed cells, wherein the source of light and the detector are located adjacent the singulator.

17. The seed monitor as set forth in claim 13 including indexing offset from and movable with the seed cells, the indexing providing a cell location signal to the processor.

18. In an adjustable seed meter system having moving seed cells within a seed meter housing for picking up seeds and distributing the seeds to the ground at a seed population per area of ground, a seed meter monitor comprising:

means for detecting the presence or absence of material in the cells;

means for providing a seed population per area of ground; and

means responsive to the presence or absence of material in the cells and the seed population per area of ground indication for providing an indication of;

two or more seeds in the seed cells;

empty seed cells;

or

plugged seed cells.

19. The seed meter monitor as set forth in claim 18 wherein the means for detecting the presence or absence of material in the seed cells comprises a source of light located within the seed meter housing.

20. The seed meter monitor as set forth in claim 18 wherein the means for detecting the presence or absence of material in the cells comprises a camera.

21. The seed monitor as set forth in claim 20 further including a processor connected to the camera and providing still shots or slow motion video of the seed cells and seeds picked up by the seed cells to an operator.

22. A method for determining adjustments for an adjustable seed meter system having moving seed cells within a seed meter housing for picking up seeds and releasing the seeds, and an outlet for distributing the released seeds towards the ground, the method comprising the steps of:

providing a signal processor;

supporting a detector adjacent the seed cells for detecting the picked up seeds prior to distribution through the outlet and providing seed cell signals to the processor indicative of the presence or absence of material in the cells;

providing population signals to the processor indicative of the number of seeds distributed towards the ground;

processing the seed cell signals and population signals in the processor and providing an indication to the operator indicative of one or more of the following conditions;

two or more seeds in the seed cells;

erratic seed movement towards the outlet

empty seed cells;

or

plugged seed cells.

23. The method as set forth in claim 22 wherein the step of analyzing includes:

comparing the seed cell signals and the population signals.

24. The method as set forth in claim 22 wherein the step of supporting the detector includes mounting the detector from the seed meter housing adjacent the seed cells upstream of the outlet.

25. The method as set forth in claim 22 including the step of illuminating the moving seed sells with a light source located within the housing.

26. The method as set forth in claim 22 wherein the step of supporting a detector includes supporting a camera from the seed meter housing, and the step of analyzing includes analyzing the characteristics of video or still pictures from the camera.

27. The method as set forth in claim 22 including the steps of providing indexing adjacent the seed cells to provide indexing signals to the processor.