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Grain flow-measuring method and device

A technology of grain flow and measurement method, applied in the field of measurement, can solve the problems of low measurement accuracy and inaccurate measurement results, and achieve the effect of improving measurement accuracy

Inactive Publication Date: 2012-05-23
CHINA AGRI UNIV
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Problems solved by technology

[0005] The embodiment of the present invention provides a grain flow measurement method and device to solve the problem of low measurement accuracy and inaccurate measurement results in the grain flow measurement method and device in the prior art

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  • Grain flow-measuring method and device

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Embodiment Construction

[0026] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0027] In precision agriculture research, in order to obtain the yield distribution of grains while harvesting grains, the combine harvester usually needs to be equipped with a grain flow device to measure the amount of harvested grains. In order to obtain the yield distribution, the location of each flow and the harvested area must be recorded, a...

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Abstract

The invention provides grain flow-measuring method and device. The grain flow-measuring device comprises a correlation-type photovoltaic sensor and a signal-processing circuit, wherein the correlation-type photovoltaic sensor is arranged in the middle of an elevator of a combine harvester and comprises a light emitter and a photovoltaic detector, the light emitter is used for emitting near infrared light, the photovoltaic detector is used for detecting the near infrared light penetrating through the elevator and outputting a photocurrent signal according to a detection result, and the signal-processing circuit is electrically connected with the photovoltaic detector and is used for receiving the photocurrent signal output by the photovoltaic detector and acquiring a grain flow value according to the photocurrent signal. The technical scheme of the embodiment of the invention can be adopted to solve the problems of low measuring precision and inaccurate measuring result of the grain flow-measuring method and device in the prior art and effectively improve the grain flow-measuring precision.

Description

technical field [0001] The embodiments of the present invention relate to the field of measurement technology, in particular to a method and device for measuring grain flow. Background technique [0002] In the research of precision agriculture, it is one of the very important tasks in the research of "precision agriculture" to study the factors affecting the yield by obtaining the information of the spatial distribution difference of crop yield (ie yield map). The difference information of spatial distribution of crop yield is the most original information and data for studying factors affecting yield, and it is also the premise and basis for fine farmland management decision-making. [0003] In the prior art, a grain flow sensor is usually arranged on the combine harvester. During the grain harvesting process, the grain flow sensor is used to measure the grain flow and harvested crop yield online to obtain information on the spatial distribution of crop yield. Commonly u...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01F1/56G01F1/86
Inventor 李民赞王薄崔笛
Owner CHINA AGRI UNIV
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