Cereal flow measuring device of combine-harvester and yield measure method of combine-harvester

Abstract

The invention discloses a grain flow measurement device and a production measurement method thereof for a combine harvester. A screw outlet is connected to an inlet of the measurement device; an outlet of the measurement device is on the top of a barn, the grain is discharged by the screw and thrown to the barn after passing through the measurement; an air humidity sensor, a grain humidity sensor and a proximity switch interface are respectively connected to a microcomputer system; the relation of the standard quality flow of the grain with the air humidity of the harvest field, the water content of the grain and the capacity flow of the grains is firstly established, then the grain is input to the measurement device to be detected the reaping parameters online by various sensors and the proximity switch through the microcomputer, and eventually, the standard quality flow, the yield and the overall yield of the harvest grain are calculated. The measurement of the device has the advantages of little impact by the working environment, high accuracy, compact structure, simple and reliable use and low cost, which not only eliminates the impact of different inner and surface water content of the grain to crop yield caused by air humidity in harvest, but also provides accurate yield information for implementing fine agricultural production.

Description

technical field [0001] The invention relates to a grain flow measuring device and yield measuring method of a combine harvester, belonging to the technical field of measuring devices, and used for online measurement of grain flow and harvested crop yield during the harvesting process of a combine harvester. Background technique [0002] During the grain harvesting process, the crop yield and its spatial distribution information (yield map) collected online concentratedly reflect the influence of farmland soil characteristics, fertilizer use, topographic structure, meteorological factors, irrigation conditions, and Cordyceps infestation on yield. It can not only provide decision-making basis for subsequent variable operations, but also feedback the implementation effect of previous precision farming links, making precision agriculture a complete closed-loop adjustment system. Therefore, crop yield is important information that needs to be obtained in precision agriculture, an...

AI Technical Summary

Problems solved by technology

The defect of these two patent applications is that the output value does not take into account the influence of air humidity and grain moisture content during harvesting, and is not comparable to the standard crop yield measured under standard air humidity and grain moisture content. At the same time, the output value and the harvested area Similarly, it is not scientific and reasonable as the basis for the harvesting cost of the harvester

This kind of flow measurement device can achieve quite high accuracy and good real-time performance, but it needs to add a larger scraper wheel mechanism and its driving motor between the grain elevator outlet and the barn, and many combine harvesters The machine does not have enough space. At the same time, the microcomputer control system is required to configure the material level sensor and the drive motor control part. The structure and control are complex and the work is unreliable, thus limiting its promotion.

[0011]The above two volumetric flow measurement technologies and devices have the advantages of little impact on the working environment of the harvester, relatively high precision and low cost, but there are still quality problems. Flow measurement accuracy is easily affected by grain humidity and moisture content, large mass flow error and complex structure

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