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Soil in-situ detection method and system for seed leakage

An in-situ detection and soil technology, which is applied in the direction of using sound waves/ultrasonic waves/infrasonic waves to analyze solids, etc., can solve problems such as poor timeliness and uneven crop growth, and achieve the effects of promoting crop growth, improving seeding quality, and high frequency

Active Publication Date: 2020-04-14
CHINA AGRI UNIV
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  • Application Information

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Problems solved by technology

The timeliness of manual detection after emergence is poor, and replanting will lead to uneven growth of crops

Method used

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  • Soil in-situ detection method and system for seed leakage
  • Soil in-situ detection method and system for seed leakage
  • Soil in-situ detection method and system for seed leakage

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Embodiment Construction

[0024] 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 described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are the Some, but not all, embodiments are invented. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0025] During wheat sowing, the soil is loosened and pushed to both sides of the opener under the action of the opener. After the seeds fall into the seed ditch, the soft soil covers the seeds due to returning to the soil. Therefore, the soil is divided into upper and lower parts by the seed layer, and the upper layer of soil is looser than the lower layer of uncultivated soil. Se...

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Abstract

An embodiment of the invention provides a seed miss-seeding soil in-situ detection method and system. The method includes the steps: controlling an ultrasonic plane probe to advance at a constant speed along a soil surface layer of soil to be detected, and continuously transmitting ultrasonic signals to the inside of the soil in the advancing process; receiving echo signals fed back by a reflecting interface in the soil in the soil to be detected, and determining miss-seeding detection results of the soil to be detected based on strength change conditions of the echo signals. The reflecting interface comprises a cultivated soil-seed layer interface and / or cultivated soil-uncultivated soil layer interface. As only the ultrasonic plane probe needs to be controlled to advance along the soil surface layer of the soil to be detected, the soil cannot be disturbed, seed distribution is monitored in real time without disturbing the soil, seed miss-seeding can be detected by a numerical method,testing results are more stable and reliable, seeding uniformity and consistency are ensured, and the method and the system are of great significance for improving seeding quality and promoting cropgrowth.

Description

technical field [0001] The embodiments of the present invention relate to the field of agricultural machinery, and more specifically, to a soil in-situ detection method and system for missed sowing of seeds. Background technique [0002] Seed miss is an important indicator to evaluate the performance of wheat planters, because it will reduce the emergence rate of crops, and ultimately affect the yield. At present, the detection methods commonly used in the prior art mainly include: detection of seed metering device, detection of seed metering tube and manual detection after sowing. Among them, the seed meter detection method is to use sensors to detect the seed flow in the seed meter in real time, and the consistency of the seed flow is used as a criterion for predicting whether it is missed. However, after the seed flow passes through the seed meter, it needs to go through a long process such as a seed pipe and a ditch opener to fall into the seed ditch. Among them, the s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N29/04
CPCG01N29/04
Inventor 卢彩云李洪文何进王庆杰王超刘建新
Owner CHINA AGRI UNIV
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