Disclosed herein are various devices, systems, and methods for use in agricultural, particularly for use in harvesting agricultural crop such as corn. Various implementations relate to methods and devices for measuring plant stalk cross-sectional area during harvest and providing additional methods of predicting and displaying yield on a row-by-row level in real time.

A combine harvester having a plurality of working units for performing a harvested material processing operation is disclosed. The plurality of working units comprise at least one separator and one cleaning device. A grain loss sensor may be present in one or both of the separator or the cleaning device. The combine harvester comprises a driver assistance system, which comprises a grain loss sensor setting assistant configured to determine and to set the grain loss sensor sensitivity of the grain loss sensor(s) of the separator and/or the cleaning device. The grain loss sensor setting assistant may determine in a dialog with an operator the grain loss sensor sensitivity to be set for the grain loss sensor(s).

A drop pan system for collecting a sample of crop material discharged by a harvester while harvesting crops. The drop pan is magnetically coupled to a support structure disposed on the harvester by at least one electro-permanent magnet having a default de-energized state and an energized state. In the default de-energized state, the at least one electro-permanent magnet is electrically isolated from an electric power source. In the energized state, the least one electro-permanent magnet is electrically coupled with the electric power source. As the harvester advances through the field harvesting the crop, the drop pan is released from the support structure by switching the electro-permanent magnet from the default de-energized state to the energized state such that the drop pan drops to the ground surface. The open top end of the drop pan on the ground surface captures a sample of the crop material discharged by the advancing harvester.

A grain harvesting vehicle is configured to harvest a grain. A chaffer is configured to separate grain from material other than grain (MOG). A grate is positioned rearward of the chaffer. The grate includes a grate panel having an upper surface and a lower surface and an aperture in the grate panel extending between the upper surface and the lower surface. The aperture has a first end nearer the chaffer and a second end opposite the first end. The grate further includes a ramp portion extending above the grate panel from adjacent the first end of the aperture toward the second end of the aperture. A grain sensor has a sensing location positioned at a height below the grate.

A sensor apparatus is provided for a grain loss monitoring system associated with an agricultural material. The sensor apparatus includes a housing with a first wall including a transparent panel. The sensor apparatus includes at least one acoustic sensor arranged within the interior and configured to collect an acoustic data stream of vibrations associated with the agricultural material striking the transparent panel; and at least one optical sensor arranged within the interior and configured to collect an image data stream of images of the agricultural material through the transparent panel. The at least one acoustic sensor is configured to provide the acoustic data stream and the at least one optical sensor is configured to provide the image data stream such that a verified grain count is determined based on the acoustic data stream and the image data stream.

A driver assistance system for a combine harvester that has a processing stage with an input for a crop flow, a first output for a useful flow and has abundant threshed grains, and a second output for a residual flow with scarce grains. At least one operating parameter of the processing stage is adjustable. The driver assistance system has an actuatable rethreshing device arranged at the second output of the processing stage, a residual grain sensor for detecting a proportion of threshed out grain in the residual flow downstream of the rethreshing device, and an evaluating device that turns the rethreshing device on and off, compares the proportions of threshed out grains in the residual flow when the rethreshing device is turned on and when the rethreshing device is turned off, and to adapt the at least one operating parameter of the processing stage based on the comparison.

In one aspect, a system for determining soil clod size distribution as an agricultural implement is being towed across a field by a work vehicle may include a vision-based sensor provided in operative association with one of the work vehicle or the agricultural implement. As such, the vision-based sensor may be configured to capture vision data associated with a portion of the field present within a field of view of the vision-based sensor. Furthermore, the system may include a controller configured to receive vision data from the vision-based sensor. Moreover, the controller may be further configured to analyze the received vision data using a spectral analysis technique to determine a size distribution of soil clods present within the field of view of the vision-based sensor.

A drop pan system for collecting discharge samples from combine harvesters or other conveyed machines or implements features a support housing attachable to the machine, a drop pan receivable in a nested position within the housing, and a magnetic hold/release mechanism with electro-permanent magnets responsive to selective energization to switch from a holding state emitting an external magnetic field for holding the drop pan in the nested position, to a release state cancelling the external magnetic field to thereby release the drop pan from the housing. A power supply is positioned on the housing at an area that resides within a footprint of the drop pan's nested position. Differently sized drop pans may be included, and the housing may include alignment guides for self-aligning the drop pan during magnetically aided placement thereof. Electrical components of the housing may be contained in an enclosure that doubles as a support for the electro-permanent magnets.

A drop pan system for collecting discharge samples from combine harvesters or other conveyed machines or implements features a support housing attachable to the machine, a drop pan receivable in a nested position within the housing, and a magnetic hold/release mechanism with electro-permanent magnets responsive to selective energization to switch from a holding state emitting an external magnetic field for holding the drop pan in the nested position, to a release state cancelling the external magnetic field to thereby release the drop pan from the housing. A power supply is positioned on the housing at an area that resides within a footprint of the drop pan's nested position. Differently sized drop pans may be included, and the housing may include alignment guides for self-aligning the drop pan during magnetically aided placement thereof. Electrical components of the housing may be contained in an enclosure that doubles as a support for the electro-permanent magnets.

A sensor apparatus is provided for a grain loss monitoring system associated with an agricultural material. The sensor apparatus includes a housing with a first wall including a transparent panel. The sensor apparatus includes at least one acoustic sensor arranged within the interior and configured to collect an acoustic data stream of vibrations associated with the agricultural material striking the transparent panel; and at least one optical sensor arranged within the interior and configured to collect an image data stream of images of the agricultural material through the transparent panel. The at least one acoustic sensor is configured to provide the acoustic data stream and the at least one optical sensor is configured to provide the image data stream such that a verified grain count is determined based on the acoustic data stream and the image data stream.