Combine Harvester and Grain Yield Management System for Combine Harvester

Patent metadata

Field	Value
Publication number	US-2021195837-A1
Application number	US-202117199661-A
Country	US
Kind code	A1
Filing date	Mar 12, 2021
Priority date	Dec 25, 2015
Publication date	Jul 1, 2021
Grant date	—

Abstract

A combine harvester includes: a grain conveyance mechanism for conveying grains from a threshing apparatus to a grain tank; a grain discharge apparatus provided in an end area of the grain conveyance mechanism, the grain discharge apparatus having a discharge case provided with a grain discharge opening, and a discharge rotor rotatably arranged in the discharge case; a pressed portion that is subjected to a pressing force applied by grains immediately before the grains are discharged by the discharge rotor; a load detector for detecting the pressing force exerted on the pressed portion; and a yield evaluator for evaluating the amount of conveyed grain based on a detection signal from the load detector.

First claim

What is claimed is:

1 . A grain yield management system for a combine harvester, the system comprising:
a threshing apparatus; a grain accumulator; a grain conveyance mechanism for conveying grains from the threshing apparatus to the grain accumulator; a conveyed grain measurement apparatus for measuring an amount of grain conveyed by the grain conveyance mechanism during travel for reaping grain culms; an accumulated grain measurement apparatus for measuring an amount of grain accumulated in the grain accumulator; and an information generator for generating grain yield information regarding a field subjected to harvesting work, based on conveyed grain measurement data outputted from the conveyed grain measurement apparatus and accumulated grain measurement data outputted from the accumulated grain measurement apparatus.

2 . The grain yield management system for a combine harvester according to claim 1 ,
wherein the accumulated grain measurement apparatus continuously performs measurement during travel for reaping grain culms, and the information generator includes a yield distribution calculator for calculating a distribution of a grain yield per parcel unit in the field based on the conveyed grain measurement data.

3 . The grain yield management system for a combine harvester according to claim 1 , wherein the information generator includes a corrector for correcting the conveyed grain measurement data, based on a comparative evaluation value that is obtained by comparing and evaluating integrated data obtained by integrating the conveyed grain measurement data with the accumulated grain measurement data.

4 . The grain yield management system for a combine harvester according to claim 3 , wherein the corrector corrects each piece of the conveyed grain measurement data so that a grain yield, obtained by integrating a conveyed grain measurement data group outputted until the accumulated grain measurement data is outputted, is equal to a grain yield that is based on the accumulated grain measurement data.

5 . The grain yield management system for a combine harvester according to claim 1 , wherein the information generator is constructed in a computer system in a remote place, the computer system being capable of wireless data communication with a combine harvester.

Assignees

• Kubota Kk

Inventors

• Ueda Mao
• Takahara Kazuhiro
• Ando Yoshimasa

Classifications

• A01F12/46

  Mechanical grain conveyors · CPC title

• B60Y2200/222

  Harvesters · CPC title

• G01G11/003

  Details; specially adapted accessories (details of weighing apparatus in general G01G21/00; auxiliary devices for weighing apparatus in general G01G23/00) · CPC title

• A01F12/60

  Grain tanks {(for combines A01D41/1208)} · CPC title

• A01D41/127 Primary

  Control or measuring arrangements specially adapted for combines · CPC title