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
  • Thin surface laser middle and small particle size seed flow sensing device
  • 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 and detection, and in particular relates to a thin-surface laser medium and small particle size seed flow sensing device. The sensing device includes: a seed inlet, a seed introduction tube, a laser emitting module, a photoelectric receiver, a seed outlet, a signal collection system, a power supply unit and a packaging shell. The seed flow falling from the seeding port of the seed meter enters the detection area through the seeding port, blocking a small part of the optical path of the thin-surface laser irradiated to the photoelectric receiver, causing the output voltage signal to be disturbed, and processed by the signal acquisition system to thereby Digitize the seed stream. The sensing device provided by the present invention has higher detection accuracy and excellent economical practicability, and can improve the seeding performance (sowing rate, rowing rate, etc.) frequency, missed broadcast, qualified index, etc.) to provide technical support for detection.

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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