Method and apparatus for measuring grain characteristics

• US 5,957,773 A
• Filed: 04/02/1997
• Issued: 09/28/1999
• Est. Priority Date: 04/02/1997
• Status: Expired due to Term

• Current Assignee: Monsanto Technology LLC (Bayer AG)
• Original Assignee: DEKALB Genetics Corp. (Bayer AG)
• Inventors: Yergler, David L., Olmsted, Thomas R., Hastings, Curtis T., Holicky, Scott R.
• Primary Examiner(s): MELIUS, TERRY L
• Application Number:
  US08/832,433
• Time in Patent Office: 909 Days
• Field of Search: 460/7, 460/1, 460/6, 460/114, 460/119, 460/149, 460/150, 56/1, 56/10.2 B, 56/10.2 C, 56/10.2 R, 56/DIG. 15, 73/73, 73/149
• US Class Current: 460/7
• CPC Class Codes: A01D 41/1208 Tanks for grain or chaff for threshing machines A01F12/60
• CPC Class Codes: A01D 41/1272 for measuring grain flow
• CPC Class Codes: A01D 41/1275 for the level of grain in grain tanks
• CPC Class Codes: A01D 41/1277 for measuring grain quality

Abstract

Methods and apparatus for measuring grain characteristics, including grain test weight, using a container having one or more sensors. The sensors may include moisture, weight, grain flow, density, and level sensors. The container may be attached to a grain harvesting device, such as a combine, for measuring characteristics of grain harvested from test plots. Multiple containers may be employed with a grain diversion device so that sequential test plots may be harvested and measured with little or no interruption. The sensors, grain diversion device, and other equipment may be in signal communication with a signal processor for automated measurement.

Claims

1. A grain harvesting and measuring system comprising:

a grain harvesting device;

at least one grain container coupled to said grain harvesting device;

at least one level sensor in communication with said grain container;

at least one weight sensor in communication with said grain container, said weight sensor being capable of sensing a static weight of grain within said grain container; and

at least one signal processor in signal communication with said level sensor and said weight sensor.

2. The system of claim 1, further comprising at least one moisture sensor in communication with said grain container.

3. The system of claim 1, further comprising at least one grain flow sensor in communication with said grain container.

4. The system of claim 2, wherein said moisture sensor is a moisture/density sensor.

5. The system of claim 1, wherein:

said level sensor has an output representative of a level of grain within said container;

said weight sensor has an output representative of a weight of grain within said container; and

said signal processor has an input and an output, said signal processor input comprising said level sensor output and said weight sensor output, and said signal processor output being representative of a characteristic of said grain.

6. The system of claim 2, wherein:

said level sensor has an output representative of a level of grain within said container;

said moisture sensor has an output representative of a moisture content of grain within said container;

said weight sensor has an output representative of a weight of grain within said container; and

said signal processor has an input and an output, said signal processor input comprising said level sensor output, said moisture sensor output, and said weight sensor output, and said processor output being representative of a characteristic of said grain.

7. The system of claim 3, wherein:

said level sensor has an output representative of a level of grain within said container;

said moisture sensor has an output representative of a moisture content of grain within said container;

said weight sensor has an output representative of a weight of grain within said container;

said grain flow sensor has an output representative of a flow of grain into said container; and

said signal processor has an input and an output, said signal processor input comprising said level sensor output, said moisture sensor output, said weight sensor output, and said grain flow sensor output, and said processor output being representative of a characteristic of said grain.

8. The system of claim 1, wherein said level sensor is an ultrasonic, laser or radar sensor.

9. The system of claim 6, wherein said characteristic is a test weight of said grain.

10. The system of claim 6, wherein said level sensor output varies according to a level of grain within said container.

11. The system of claim 1, wherein said container has at least one inlet in communication with an interior of said grain container and at least one outlet in communication with an interior of said grain container, wherein said outlet includes a discharge control device, and wherein said signal processor is in signal communication with said discharge control device to control release of said grain from said container.

12. The system of claim 1, wherein said container is non-segmented.

71. The system of claim 1, wherein said grain container is capable of containing all of the grain harvested from one test plot.

13. A grain measuring apparatus, comprising:

a grain container;

a moisture sensor having an output representative of a moisture content of grain within said container;

a weight sensor having an output representative of a weight of grain within said container;

a level sensor having an output representative of a level of grain within said container; and

a signal processor having an input and an output, said signal processor input comprising said moisture sensor output, said weight sensor output, and said level sensor output, and said signal processor output being representative of a characteristic of said grain.

14. The apparatus of claim 13, further comprising at least one grain flow sensor having an output representative of a flow of grain into said container, and wherein said signal processor input further comprises said grain flow sensor output.

15. The apparatus of claim 13, wherein said moisture sensor is a moisture/density sensor, and wherein said output of said moisture sensor further comprises an output representative of a density of said grain within said container.

16. The apparatus of claim 13, wherein said container is coupled to a grain harvesting device.

17. The apparatus of claim 13, wherein said characteristic is a test weight of said grain.

18. The apparatus of claim 13, wherein said level sensor output varies according to a level of grain within said container.

19. The apparatus of claim 13, wherein said container has at least one inlet in communication with an interior of said grain container and at least one outlet in communication with an interior of said grain container;

wherein said outlet includes a discharge control device, and wherein said signal processor has an output control signal to said discharge control device to control release of said grain from said container.

20. The apparatus of claim 13, wherein said container is non-segmented.

72. The system of claim 13, wherein each of said grain containers is capable of containing all of the grain harvested from one test plot.

21. A grain harvesting and measuring system comprising:

a grain harvesting device having at least one grain source;

a plurality of grain containers, each of said containers having at least one respective inlet and at least one respective outlet in communication with an interior of said container, said containers being coupled to said grain harvesting device;

at least one sensor having an output representative of a characteristic of grain within each of said respective containers; and

at least one grain diversion device coupled between said grain source and at least two of said container grain inlets, said grain diversion device being capable of selectively directing grain to either of said two container grain inlets.

22. The system of claim 21, wherein said plurality of grain containers comprises at least first and second grain containers;

and

wherein said grain diversion device is a grain diverter valve comprising a diverter plate having first and second ends, said diverter plate being pivotable about said first end such that said second end of said diverter plate is positionable in at least a first and a second position, said second end of said diverter plate being disposed in a grain flow path between said grain source and said first grain container inlet when positioned in said first position, said second end of said diverter plate being disposed in a grain flow path between said grain source and said second grain container inlet when positioned in said second position.

23. The system of claim 21, further comprising a signal processor having an input, said signal processor input comprising said output of said at least one sensor.

24. The system of claim 23, wherein said signal processor has an output, said signal processor output being representative of a characteristic of said grain.

25. The system of claim 21, wherein said at least one sensor comprises:

a moisture sensor having an output representative of a moisture content of grain within each of said containers;

a weight sensor having an output representative of a weight of grain within each of said containers;

a level sensor having an output representative of a level of grain within each of said containers; and

further comprising a signal processor having an input and an output, said signal processor input comprising said moisture sensor output, said weight sensor output, and said level sensor output, and said signal processor output being representative of a characteristic of said grain.

26. The system of claim 25, wherein said level sensor is an ultrasonic, laser, or radar sensor.

27. The system of claim 25, wherein said signal processor output is representative of a test weight of said grain.

28. The system of claim 21, wherein said at least one sensor comprises a moisture/density sensor having an output representative of a moisture content of grain within each of said containers, and an output representative of a density of grain with each of said containers.

29. The system of claim 21, wherein said at least one sensor comprises a density sensor having an output representative of a density of grain within each of said containers.

30. The system of claim 23, wherein said outlets of each of said containers further comprises a discharge control device, and wherein said signal processor has an output control signal to said discharge control device to control release of said grain from said container.

31. The system of claim 23, wherein said signal processor has an output control signal to said grain diversion device to control diversion of said grain from said grain source to said container inlets.

32. The system of claim 23, further comprising at least one grain flow sensor having an output representative of a flow of grain into said container, and wherein said signal processor input further comprises said grain flow sensor output.

33. The system of claim 31, further comprising at least one grain flow sensor having an output representative of a flow of grain into said container, wherein said signal processor input further comprises said grain flow sensor output, and wherein said signal processor output control signal to said grain diversion device is based on said grain flow sensor output.

34. The system of claim 21, wherein each of said containers is non-segmented.

35. The system of claim 25, wherein said level sensor output varies according to a level of grain within said container.

36. The system of claim 30, wherein said grain harvesting device is a two-plot combine having first and second grain sources, wherein said plurality of containers includes first and second pairs of grain containers, and wherein a first grain diversion device is coupled between said first grain source and inlets of said first pair of containers and a second grain diversion device is coupled between said second grain source and inlets of said second pair of containers.

37. A method for measuring characteristics of grain, comprising:

providing a grain measuring apparatus including;

a grain container,

a moisture sensor having an output representative of a moisture content of grain within said container,

a weight sensor having an output representative of a weight of grain within said container,

a level sensor having an output representative of a level of grain within said container, and

a signal processor having an input and an output, said signal processor input comprising said moisture sensor output, said weight sensor output, and said level sensor output, and said signal processor output being representative of a characteristic of said grain;

collecting grain within said container; and

measuring said level, weight, and moisture content of said grain within said container.

38. The method of claim 37, wherein said grain measuring apparatus further comprises a grain flow sensor having an output representative of a flow of grain into said container, and wherein said signal processor input further comprises said grain flow sensor output.

39. The method of claim 37, wherein said moisture sensor is a moisture/density sensor, and wherein said output of said moisture sensor further comprises an output representative of a density of said grain within said container.

40. The method of claim 37, further comprising calculating a test weight of said grain based on said moisture, weight, and level outputs.

41. The method of claim 37, wherein said level sensor output varies according to a level of grain within said container.

42. The method of claim 37, wherein said container is non-segmented.

43. The method of claim 37, wherein said providing further comprises providing a grain harvesting device coupled to said grain measuring apparatus, and wherein said collecting further comprises harvesting said grain with said grain harvesting device.

73. The method of claim 37, wherein said collecting includes collecting all of the grain harvested from one test plot within said container;

and wherein said measuring includes measuring the level and weight of said all of said grain harvested from one test plot.

44. A method for harvesting grain, comprising:

providing a grain harvesting and measuring system comprising;

a grain harvesting device,

at least one grain container coupled to said grain harvesting device,

at least one level sensor in communication with said grain container,

at least one weight sensor in communication with said grain container said weight sensor being capable of sensing a static weight of grain within said grain container, and

at least one signal processor in signal communication with said level sensor and said weight sensor;

harvesting grain with said grain harvesting device;

collecting said grain within said container; and

measuring said level and static weight of said grain within said container.

45. The method of claim 44, wherein said grain harvesting and measuring system further comprises at least one moisture sensor in communication with said grain container.

46. The method of claim 44, wherein said grain harvesting and measuring system further comprises at least one grain flow sensor in communication with said grain container.

47. The method of claim 45, wherein said moisture sensor is a moisture/density sensor.

48. The method of claim 45, wherein:

said level sensor has an output representative of a level of grain within said container;

said moisture sensor has an output representative of a moisture content of grain within said container;

said weight sensor has an output representative of a weight of grain within said container; and

said signal processor has an input and an output, said signal processor input comprising said level sensor output, said moisture sensor output, and said weight sensor output, and said processor output being representative of a characteristic of said grain.

49. The method of claim 48, further comprising calculating a test weight of said grain based on said moisture, weight, and level outputs.

50. The method of claim 44, wherein said level sensor output varies according to a level of individual grain samples within said container.

51. The method of claim 44, wherein said container is non-segmented.

74. The method of claim 44, wherein said collecting includes collecting all of the grain harvested from one test plot within said container;

and wherein said measuring includes measuring the level and weight of said all of said grain harvested from one test plot.

52. A method for harvesting grain test plots, comprising:

providing a grain harvesting device having at least one grain source;

providing a grain measuring apparatus, said grain measuring apparatus including;

a plurality of grain containers, each of said containers having at least one respective inlet and at least one respective outlet in communication with an interior of said container, said containers being coupled to said grain harvesting device,

at least one sensor having an output representative of a characteristic of grain within each of said respective containers, and

at least one grain diversion device coupled between said grain source and at least two of said container grain inlets, said grain diversion device being capable of selectively directing grain to either of said two container grain inlets;

harvesting said grain test plots with said grain harvesting device;

collecting said grain within at least one of said containers; and

measuring said characteristic of said grain within said container using said sensor.

53. The method of claim 52, wherein said grain measuring apparatus further comprises a signal processor having an input and an output, said signal processor input comprising said output of said at least one sensor, and said signal processor output being representative of a characteristic of said grain.

54. The method of claim 52, wherein said at least one sensor comprises:

a moisture sensor having an output representative of a moisture content of grain within each of said containers;

a weight sensor having an output representative of a weight of grain within each of said containers;

a level sensor having an output representative of a level of grain within each of said containers; and

further comprising a signal processor having an input and an output, said signal processor input comprising said moisture sensor output, said weight sensor output, and said level sensor output, and said signal processor output being representative of a characteristic of said grain.

55. The method of claim 54, further comprising calculating a test weight of said grain based on said moisture, weight, and level outputs.

56. The method of claim 53, wherein said grain measuring apparatus further comprises at least one grain flow sensor having an output representative of a flow of grain into said containers, and wherein said signal processor input further comprises said grain flow sensor output.

57. The method of claim 52, wherein said at least one sensor comprises a moisture/density sensor having an output representative of a moisture content of grain within each of said containers, and an output representative of a density of grain within each of said containers.

58. The method of claim 52, wherein said at least one sensor comprises a density sensor having an output representative of a density of grain within each of said containers.

59. The method of claim 52, wherein said grain harvesting device is a two-plot combine having first and second grain sources, wherein said plurality of containers includes first and second pairs of grain containers, and wherein a first grain diversion device is coupled between said first grain source and inlets of said first pair of containers and a second grain diversion device is coupled between said second grain source and inlets of said second pair of containers.

60. The method of claim 52, wherein said outlets of each of said containers further comprises a discharge control device, and wherein:

said collecting further comprises controlling diversion of grain from said grain source to said containers using said grain diversion device; and

said measuring further comprises controlling release of said grain from each of said containers using said discharge control devices after measurements are made.

61. The method of claim 60, wherein said grain test plots comprise at least first and second sequential grain test plots, wherein said at least two containers comprise first and second containers, and wherein:

said collecting further comprises controlling diversion of grain harvested from said first sequential test plot from said grain source to said first container, and controlling diversion of grain harvested from said second sequential test plot from said grain source to said second container; and

said measuring further comprises;

releasing said grain harvested from said first test plot from said first container after measurements are made on said grain in said first container and before grain harvested from additional test plots is collected in said first container, and

releasing said grain harvested from said second test plot from said second container after measurements are made on said grain in said second container and before grain harvested from additional test plots is collected in said second container.

62. The method of claim 61, wherein said grain test plots further comprise at least a third sequential grain test plot, wherein said first and second containers both contain grain when said grain harvesting device is positioned between said second and third sequential test plots, and wherein said measuring further comprises:

recording said measurements on said grain harvested from said first test plot while said grain harvesting device is positioned between said second and third sequential grain test plots;

releasing said grain harvested from said first test plot from said first container while said grain harvesting device is positioned between said second and third grain test plots; and

controlling diversion of said grain from said grain source so that grain harvested from said third sequential test plot is diverted to said first container.

63. The method of claim 60, wherein said grain measuring apparatus further comprises at least one grain flow sensor having an output representative of a flow of grain into said containers, wherein said signal processor input further comprises said grain flow sensor output, and wherein said diversion of said grain is controlled based on said flow sensor output.

64. The method of claim 52, wherein said collecting includes collecting all of the grain harvested from one test plot within one of said containers, and wherein said measuring includes measuring characteristics of said all of said grain harvested from one test plot.

65. A grain harvesting and measuring system comprising:

a grain harvesting device;

at least one grain container coupled to said grain harvesting device;

at least one sensor capable of directly sensing grain density and having an output representative of a density of grain within said container; and

at least one signal processor having an input comprising said output from said at least one sensor.

66. The system of claim 65, wherein said at least one sensor is a moisture/density sensor, and wherein said output of said at least one sensor further comprises an output representative of a moisture content of grain within said container.

67. The system of claim 65, wherein said at least one sensor is a density sensor.

75. The system of claim 65, wherein said grain container is capable of containing all of the grain harvested from one test plot.

68. A method for harvesting grain, comprising:

providing a grain harvesting and measuring system comprising;

a grain harvesting device,

at least one grain container coupled to said grain harvesting device,

at least one sensor capable of directly sensing grain density and having an output representative of a density of grain within said container, and

at least one signal processor having an input comprising said output from said at least one sensor;

harvesting grain with said grain harvesting device;

collecting said grain within said container; and

measuring said density of said grain within said container.

69. The system of claim 68, wherein said at least one sensor is a moisture/density sensor, and wherein said output of said at least one sensor further comprises an output representative of a moisture content of grain within said container.

70. The system of claim 68, wherein said at least one sensor is a density sensor.

76. A grain harvesting and measuring system comprising:

a grain harvesting device;

at least one grain container coupled to said grain harvesting device, said grain container being capable of containing all of the grain harvested from one test plot;

at least one level sensor in communication with said grain container;

at least one weight sensor in communication with said grain container; and

at least one signal processor in signal communication with said level sensor and said weight sensor.

77. A method for harvesting grain, comprising:

providing a grain harvesting and measuring system comprising;

a grain harvesting device,

at least one grain container coupled to said grain harvesting device, said grain container being capable of containing all of the grain harvested from one test plot,

at least one level sensor in communication with said grain container,

at least one weight sensor in communication with said grain container, and

at least one signal processor in signal communication with said level sensor and said weight sensor;

harvesting grain with said grain harvesting device;

collecting said grain within said container; and

measuring said level and weight of said grain within said container.