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Real-time detection and automatic reseeding system for missed seeding of small particle size precision seed metering device

A real-time detection and seed metering technology, which is applied in the fields of seeder parts, agricultural gas emission reduction, sustainable manufacturing/processing, etc., can solve the constraints of precision seeding mechanization and high intelligence, and affect the precision seed metering missed seeding Problems such as replanting operation and hole blockage can be solved to improve the accuracy of replanting, improve stability and reduce lagging distance

Active Publication Date: 2016-09-07
HUAZHONG AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the characteristics of small particle size, light weight, easy breakage, and high oil yield, small-size seeds are likely to cause clogging of the mold holes. The cost of researching an electronic monitoring system for use with small-size precision seed metering devices is relatively high However, there are not many reports on missed sowing detection and replanting of small-sized seeds in China, which affects the missed sowing and reseeding operation of precision seed metering devices, and restricts the development of precision seeding mechanization and high intelligence

Method used

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  • Real-time detection and automatic reseeding system for missed seeding of small particle size precision seed metering device
  • Real-time detection and automatic reseeding system for missed seeding of small particle size precision seed metering device
  • Real-time detection and automatic reseeding system for missed seeding of small particle size precision seed metering device

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Effect test

Embodiment 1

[0044] The small-diameter precision seed metering device 130 of the present invention selects a rapeseed precision seed metering device (patent number: 200620172781.3, patent publication number: CN201001269) of positive and negative air pressure combined type, and the present embodiment is on the precision seed metering device test bench conduct.

[0045] In this embodiment, the precision metering device 130 for rapeseed uses a seeding disc with 20 holes, and 20 magnets 141 are evenly distributed on the synchronous disc 140 . The software program of the real-time detection of missed seeding and automatic reseeding system based on the time-varying sliding window is programmed into the MSP430 single-chip microcomputer through the program download port, and the threshold value of the missing seeding coefficient is set through the man-machine operation interface 250 R t1 =0.15,R t2 =0.35 and the number of standard magnets of the synchronous disk G=20. The positive and negative ...

Embodiment 2

[0051] The present invention selects 2BFQ-6 type rapeseed precision combined direct seeding machine (patent number: 201010153384.2, patent publication number: CN101836526A), Dongfanghong-LX954 tractor provides power for 2BFQ-6 type rapeseed precision combined direct seeding machine, selects positive Negative air pressure combined precise metering device for rapeseed, the present embodiment is tested in the field.

[0052] In this embodiment, the precision metering device 130 for rapeseed uses a seeding disc with 40 holes, and 40 magnets 141 are evenly distributed on the synchronous disc 140 . Set the missing broadcast coefficient threshold R through the man-machine operation interface 250 t1 =0.15,R t2 =0.35 and synchronous disc 140 standard magnetic steel number G=40, start the missing broadcast real-time detection system to start detection. The forward speed V of the live broadcast machine is set to 2.17km / h (slow I gear) or 3.36km / h (slow II gear,) imitating the rotation ...

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Abstract

The invention discloses a miss-seeding real-time detection and automatic seed supplying system of a small grain size precise seeding apparatus. The system comprises a sensor module, a singlechip microcomputer detection system module and a seed supplying executing module. By adopting a miss-seeding real-time detection method of the small grain size precise seeding apparatus with a time-varying sliding window, the system transfers a standard seeding pulse sequence and a seeding seed flow sequence detected to a singlechip microcomputer control system by virtue of a sensor for statistic analysis so as to obtain a broken bar coefficient, a spare missing seedling coefficient and a miss-seeding coefficient and can be used for precisely judging the miss-seeding state according to a miss-seeding coefficient threshold vale and a miss-seeding judging rule for displaying and alarming, and meanwhile, the system drives a seed supply system to compensate seeds after miss seeding. The system disclosed by the invention can be used for immediately and accurately compensating the seeds, so that the seeding quality and the production efficiency of a small grain seed precise direct seeding machine, such as oilseed rape, are improved, and the mechanical and intelligence levels of a oilseed rape seeder is gradually improved.

Description

technical field [0001] The invention belongs to the technical field of agricultural machinery control, and in particular relates to a system for real-time detection of missed sowing and automatic replanting of a small particle size precision seed metering device. Background technique [0002] Sowing is the primary link in agricultural production, and the precision combined direct seeding machine is an important operating machinery and equipment for sowing, and its sowing performance directly determines the quality of sowing. Today, precision sowing technology is an important technology to achieve precision sowing operations. It has the advantages of saving seed fertilizer, high operating efficiency, and good emergence effect, making it a mainstream measure to improve rape seeding quality and crop production efficiency. The precision seed metering device is the core component of the seeder and the key to ensuring uniform and accurate seeding. The quality of its seeding perfor...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01C7/20
CPCY02P60/00Y02P60/20
Inventor 丁幼春王雪玲廖庆喜黄海东张幸
Owner HUAZHONG AGRI UNIV
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