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Thin surface laser middle and small particle size seed flow sensing device

A sensing device and small particle size technology, which is applied in the direction of transmitting sensing components, measuring devices, instruments, etc. using optical devices, can solve the problems of undetectable seeds, etc., and achieve the effect of eliminating detection blind spots, small structure and accurate detection

Pending Publication Date: 2018-04-17
HUAZHONG AGRI UNIV
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Problems solved by technology

[0004] Therefore, in view of the above existing problems, the present invention provides a thin-surface laser medium and small particle size seed flow sensing device, which can realize no blind spot detection of seed flow, and improve the time resolution of seed flow detection, and overcome the gap between two or more seeds. too close to detect problems

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  • Thin surface laser middle and small particle size seed flow sensing device
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  • Thin surface laser middle and small particle size seed flow sensing device

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[0031] The following descriptions of the various embodiments refer to the accompanying drawings to illustrate specific embodiments in which the invention may be practiced. The directional terms mentioned in the present invention, such as [top], [bottom], [front], [back], [left], [right], [inside], [outside], [side], etc., are only for reference The orientation of the attached schema. Therefore, the directional terms used are used to illustrate and understand the present invention, but not to limit the present invention. In the figures, structurally similar elements are denoted by the same reference numerals.

[0032] The present invention aims at the technical problems that when the existing photoelectric detection device is applied to the sensory detection of the seed flow of small and medium-sized particles, there is a certain detection blind area, which leads to missed detection and the low detection time resolution due to the long light-through time. Embodiments can addr...

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Abstract

The invention belongs to the technical field of agricultural seed particle sensing detection and particularly relates to a thin surface laser middle and small particle size seed flow sensing device, which comprises a seed inlet, a seed guiding pipe, a laser transmitting module, a photoelectric receiver, a seed outlet, a signal acquisition system, a power supply unit and a packaged shell. The seedflow dropping from the seed feeding port of a seed metering device enters a detection area through the seed inlet, a small portion of thin surface laser path irradiating to the photoelectric receiveris sheltered, outputted voltage signals generate disturbance, and thus, digitalization of the seed flow is realized through processing by the signal acquisition system. The sensing device provided inthe invention has high detection accuracy and good economic practicality, and a technical support can be provided for detection on the seed metering performance (sowing, seed metering frequency, missing sowing, qualified index and the like) of a precision seed metering device for middle and small particle size seeds (such as rape, wheat and corn seeds).

Description

technical field [0001] The invention relates to the technical field of agricultural seed particle sensing and detection, in particular to a thin-surface laser medium and small particle size seed flow sensing device. Background technique [0002] Mechanized precision seeding can reduce labor intensity, improve operating efficiency, and increase farmers' income, which is an important part of the development of intelligent agricultural machinery. During the sowing process, seed metering quality monitoring, missed seeding detection, seeding rate monitoring, and sowing status map generation are the trends in the intelligent development of precision seeding, and the realization of these functions must rely on the ability to accurately collect seeding frequency and seeding time in real time The seed flow sensing device for seeding information such as interval and total amount of seeding is used as support. [0003] At present, the existing photoelectric detectors used for seeding ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01D5/36G01M99/00
CPCG01D5/36G01M99/005
Inventor 丁幼春廖庆喜朱凯杨军强张莉莉何志博彭靖叶夏中州
Owner HUAZHONG AGRI UNIV
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