Miss-seeding real-time detection and automatic seed supplying system of small grain size precise seeding apparatus

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: 2015-04-08
HUAZHONG AGRI UNIV
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  • Abstract
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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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  • Miss-seeding real-time detection and automatic seed supplying system of small grain size precise seeding apparatus
  • Miss-seeding real-time detection and automatic seed supplying system of small grain size precise seeding apparatus
  • Miss-seeding real-time detection and automatic seed supplying system of small grain size precise seeding apparatus

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Embodiment 1

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

[0045] In this embodiment, the rapeseed precision seed metering device 130 selects a seed metering disk with 20-shaped holes, and 20 magnetic steels 141 are evenly distributed on the synchronous disk 140 . The software program of the real-time detection and automatic reseeding system of the time-varying sliding window-based small particle size precision seed metering system is programmed into the MSP430 single-chip microcomputer through the program download port, and the threshold 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 t...

Embodiment 2

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

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

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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 real-time detection and automatic reseeding system for missed seeding of a small particle size precision seed metering device. Background technique [0002] Sowing is the primary link of agricultural production, and the precision combined direct seeding machine is an important mechanical equipment for realizing sowing. The quality of its sowing performance directly determines the quality of sowing. Nowadays, precision seeding technology is an important technology to achieve precision seeding operations. It has the advantages of saving seed fertilizer, high operation efficiency, and good seedling effect, making it a mainstream measure to improve rapeseed seeding quality and crop production efficiency. The precision seed metering device is the core component of the seeder, and it is the key to ensure the even and accurate seed metering. The qual...

Claims

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Application Information

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Patent Type & Authority Applications(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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