Technologies for determining test weight of a crop (such as technologies for determining test weight of corn) can be more accurate. The technologies can include a computing device configured to determine dimensions of kernels of a harvested crop in a combine harvester as well determine test weight of the crop based on the determined dimensions of the kernels. The determination can include deriving the test weight from a table including correlations between kernel dimensions and test weights. The table can be enhanced by a feedback loop, and the technologies can include a computing device that is configured to communicate test weights to an operator of a combine harvester during or after processing of the crop by the harvester. The technologies can also include a device that can generate a test-weight map based on determined test weights and locations of a crop field associated with the determined test weights.

Technologies for controlling operating clearance between a concave assembly and a crop processing rotor of a combine harvester can be automated. The technologies can include a device configured to estimate respective dimensions of kernels of a crop harvested by a combine harvester as well as determine boundary conditions for the operating clearance based on the estimated respective dimensions of the kernels. Also, the boundary conditions are related to respective central core sizes (such as respective cob sizes) which can be determined based on the estimated respective dimensions of the kernels. The determination can include deriving the boundary conditions from a table including correlations between kernel dimensions and central core sizes, and the table can be enhanced by a feedback loop. The operating clearance can be automatically adjusted according to the determined boundary conditions and some additional factors such as a debris-to-kernel ratio in an output of the harvester.

Selectively removable nozzles for inclusion into a grain conveyor may include a ramp and a sidewall coupled to the ramp. The ramp may conform to an inner surface of a conveyor housing and produce a constriction within the housing. The sidewall may also conform to the inner surface of the conveyor housing. The ramp may also include a recess that extends along the sidewall. The recess may receive a shaft of the conveyor. One nozzle may be replaced with another in order to accommodate different harvesting conditions. The ramp compresses grain traveling through the conveyor to provide a continuous flow of grain. The continuous flow of grain provides for accurate measurements of grain characteristics by a sensor located adjacent to the flow of grain.

A system and method for automated grain inspection and analysis of results during harvest, using an inspection system mounted on a combine harvester with geolocation tracking, allowing for real time analysis during harvest and tracking of grain quality by location of harvest.

A grain measuring device 10 includes a reaping determination unit 11 in a combine harvester 1 to determine a state of reaping grains; and a measurement unit 12 configured to measure a component of the grains and save a result of measurement when the reaping determination unit 11 determines that the combine harvester 1 is in in the state of reaping the grains.

An electronic data processor is configured to identify the component pixels of a harvestable plant component within the obtained image data of plant pixels of the one or more target plants. An edge, boundary or outline of the component pixels is determined. The data processor is configured to detect a size of the harvestable plant component based on the determined edge, boundary or outline of the identified component pixels. A user interface is configured to provide an aggregate, sectional yield, or per row yield based on a detected size of the harvestable plant component for the one or more target plants as an indicator of yield of the one or more plants or standing crop in the field.

A method for facilitating calibration of a yield monitor, including receiving, via a controller of a yield monitor calibration system, a first signal indicative of a first weight value from a scale of the yield monitor calibration system, wherein the scale is configured to monitor weight of harvested crops in a mobile storage compartment configured to receive the harvested crops from a harvester during an unloading operation. The method also includes receiving, via the controller, a second signal indicative of a second weight value from the scale in response to receiving a third signal indicative of the harvester completing the unloading operation, comparing, via the controller, the first weight value to the second weight value to determine a difference value, as well as outputting, via the controller, the difference value to the yield monitor to enable the yield monitor to perform a calibration process.

An agricultural system with an agricultural harvester has a terahertz sensor. The terahertz sensor includes at least one a terahertz source disposed to direct electromagnetic radiation toward a harvest material of the agricultural harvester. A terahertz detector is disposed to detect the terahertz electromagnetic radiation after the terahertz electromagnetic radiation interacts with the harvest material. A controller is operably coupled to the terahertz detector and is configured to detect a harvest-related parameter based on a signal from the terahertz detector and to perform an action based on a detected parameter.

Embodiments of a kernel-level grain monitoring system include a grain camera positioned to capture bulk grain sample images of a currently-harvested grain taken into and processed by a combine harvester, a moisture sensor, and a display device. A controller architecture is coupled to the grain camera, to the moisture sensor, and to the display device. The controller architecture is configured to: (i) analyze the bulk grain sample images, as received from the grain camera, to determine an average per kernel (APK) volume representing an estimated volume of a single average kernel of the currently-harvested grain; (ii) repeatedly calculate one or more topline harvesting parameters based, at least in part, on the determined APK volume and the moisture sensor data; and (iii) selectively present the topline harvesting parameters on the display device for viewing by an operator of the combine harvester.

An arrangement for data recording and sampling for an agricultural machine includes a sensor set-up arrangement to detect properties contained in a material stream, means of taking a sample of the material from the material stream, and an electronic control unit. The control unit is configured to perform the following steps in response to a tripping signal: (a) instruct an actuator to bring the means into a position for sampling; (b) starting a recording of raw sensor arrangement data in a memory; (c) after depositing the sample at a desired sampling location, stop recording the raw data and instruct the actuator to return the means from the sampling position to an inactive position; and (d) store identification data to identify the sample together with the raw data in memory.