Method and apparatus for mapping crop quality

• US 5,845,229 A
• Filed: 10/28/1996
• Issued: 12/01/1998
• Est. Priority Date: 10/28/1996
• Status: Expired

• Current Assignee: Appropriate Systems
• Original Assignee: Appropriate Systems
• Inventors: Rawlins, Stephen L.
• Primary Examiner(s): McElheny, Jr., Donald E.
• Application Number:
  US08/738,732
• Time in Patent Office: 764 Days
• Field of Search: 702/2, 702/5, 47/1.7, 56/1, 56/10.2 A-10.2 H, 73/861.73
• US Class Current: 702/2
• CPC Class Codes: A01B 79/005 Precision agriculture
• CPC Class Codes: Y02A 40/22 Improving land use; Improving water use or availability; Controlling erosion

Abstract

A harvester which has a global-positioning system is used to harvest crops. Fields to be harvested are divided into individual field areas for crop quality assessment selected by the farmer. Values representing the location of the selected individual field areas or crop management areas are loaded into storage on a computer or recorded. The harvester also includes a dispenser of crop markers. Each crop marker has a unique identifier when compared to the other crop markers used during the harvest. The global-positioning system determines actual field location during the harvest and when an actual field location is close or matches one of the selected field locations, a trigger signal is sent to the dispenser and a crop marker is inserted into the harvested crop stream. A table of selected field locations and the crop markers inserted into the crop stream from that field location is stored. Later on in processing, the crop marker is detected and a sample of the crop is taken from around the crop marker. A similar system is used for orchard crops. A picker harvests the fruit off a tree and when the task is complete, the picker places some of the fruit from the tree in a bag which is tied shut. A marker such as a bar code label is placed on the bag and a quality test is performed on the fruit in the bag.

Claims

1. A method for mapping crop quality with respect to field location comprising the steps of:

selecting a field position to sample for crop quality;

determining the field position of a harvester;

inserting a marker into the crop harvest stream of the harvesting apparatus when the determined field position substantially corresponds to a selected field position;

detecting the marker after the harvested crop is removed from the field; and

removing the marker and a portion of the harvested crop near the marker for a quality sample.

2. The method for mapping crop quality with respect to field location of claim 1 further comprising the step of applying a quality test to the quality sample.

3. The method for mapping crop quality with respect to field location of claim 1 wherein the step of determining the field position of a harvester further comprises the step of triangulating a position from signals received from at least four satellites.

4. The method for mapping crop quality with respect to field location of claim 1 wherein the step of determining the field position of a harvester further comprises the step of determining the location of a global-positioning system onboard the harvester.

5. The method for mapping crop quality with respect to field location of claim 4 wherein the step of inserting a marker into the crop harvest stream of the harvester when the determined field position matches a selected field position further comprises the steps of:

converting a selected field location into a value;

comparing said value representing the selected filed location a value representing an actual field position output from the global-positioning system; and

sending a signal to insert a marker into the stream of harvested crops when the selected value representing the field location compares substantially with a value representing the actual field position from the global-positioning system.

6. The method for mapping crop quality with respect to field location of claim 1 wherein the step of detecting the marker after the harvested crop is removed from the field further comprises the steps of:

moving a crop with respect to a detector;

directing a radio wave of a first frequency toward the crop; and

detecting a radio wave at second frequency when the marker passes the detector.

7. The method for mapping crop quality with respect to a plurality of field locations of claim 1 wherein the step of determining the field position of a harvester comprises determining the position of a tree.

8. The method for mapping crop quality with respect to a plurality of field locations of claim 7 wherein the step of inserting a marker into the crop harvest stream of the harvester includes placing a marker on a sampling of fruit harvested from the selected tree.

9. The method for mapping crop quality with respect to a plurality of field locations of claim 8 wherein the step of removing the marker and a portion if the harvested crop includes removing a bag of fruit having a marker on said bag.

18. The method for mapping crop quality with respect to an orchard of claim 1 wherein the step of inserting a marker into the crop harvest stream includes placing a bag of crop material from a particular tree with a tree identification tag attached thereto into the crop harvest stream.

10. A farming apparatus comprising:

a harvester that harvests crops;

a first memory portion for storing values representing selected field locations, including a value representing a first selected field location;

a positioning system associated with said harvester and connected to said first memory portion, said positioning system outputting values representing an actual position of said harvester;

a comparator for comparing values from said global-positioning system and the values representing the selected field positions, said comparator outputting a trigger signal when one of the values representing the selected field position substantially corresponds to a value representing actual position of the harvester from the global-positioning system;

a plurality of markers, including a first marker, each of the plurality of markers being identifiable from one another;

a holder and dispenser of markers that inserts a marker into the harvested crop stream in response to the trigger signal; and

a correlation device that correlates the first marker with the first selected field location.

11. The farming apparatus of claim 10 wherein the correlation device includes a second memory portion for storing which marker was dispensed for each selected field position where a marker was dispensed from the holder and dispenser.

12. The farming apparatus of claim 10 wherein the positioning system is a global-positioning system.

13. The farming apparatus of claim 10 wherein the plurality of markers further comprise a body which will remain in the same approximate location with respect to the crop as it is harvested.

14. The farming apparatus of claim 13 wherein the plurality of markers further comprise a device that emits a second radio frequency signal having a second frequency in response to directing a first radio signal frequency having a first frequency toward the marker, said second radio frequency signal including an identifier unique to a particular marker.

15. A farming apparatus for use with a global-positioning system comprising:

a first memory portion for storing values representing selected field locations, and for storing a first value representing a selected field location;

a comparator for comparing values representing locations of a global-positioning system and the values representing selected field positions from said first memory, said comparator outputting a trigger signal when the value representing the selected field position substantially corresponds to the value representing the actual position of the global-positioning system;

crop markers including a first crop marker, each of the crop markers being identifiable from one another;

a holder and dispenser of crop markers for dispensing a crop marker in response to a trigger signal; and

a correlation mechanism that correlates the first crop marker with the first selected field location.

16. The farming apparatus for use with a global-positioning system of claim 15 wherein the correlation mechanism comprises a second memory portion for storing which crop marker was dispensed for each selected field position where a marker was dispensed.

17. A method for mapping crop quality with respect to orchard location comprising the steps of:

selecting a tree to sample for crop quality;

inserting a marker into the crop harvest stream;

detecting the marker after the harvested crop is removed from the field; and

removing the marker and a portion of the harvested crop near the marker for a quality sample.