On-line detection apparatus for seed spacing evenness of accurate planter
A detection device and uniformity technology, which is used in measurement devices, testing of machines/structural components, mapping and navigation, etc., can solve the problems of inability to capture images of seed distribution positions, and inability to handle boundary overlaps, and achieve continuous online detection. Effect
Inactive Publication Date: 2011-07-20
HEBEI AGRICULTURAL UNIV.
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Problems solved by technology
The main problem with this method is that when the conveyor belt moves at different linear speeds (simulating the different operating speeds of the planter), the overlapping of the images captured by the camera cannot be handled.
In addition, this method is obviously impossible to use in field experiments, because the seeds fall directly into the seed ditch and are immediately covered by the back soil during field experiments, and it is impossible to take pictures of the distribution position of the seeds
Method used
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[0014] Referring to the attached picture:
[0015] The outer sleeve 4 is a steel pipe with an internal diameter of 40mm and a length of 370mm. The bottom mounting plate 6 is welded to the upper end of the outer sleeve. Bottom mounting plate 6 has 4 mounting holes above, aperture 6.2mm, by these 4 holes with the fuselage of bolted instrument mounting plate and linear array CCD digital video camera.
[0016] The inner sleeve 13 is a steel pipe with an inner and outer diameter of 40mm, an inner diameter of 35mm, and a length of 300mm. A lighting LED array 15 is installed at the lower end of the inner sleeve 13 . In order to facilitate the installation, cleaning and wiring of the lighting LED array 15, a notch with a width of 10mm and a height of about 200mm is formed on the lower end of the inner sleeve along the axis. The instrument mounting plate 12 is welded to the upper end of the inner sleeve. There are 12 mounting holes on the instrument mounting plate 12, 4 of which ar...
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The invention discloses a seed sowing distance uniformity on-line detection device of an accurate planter based on a linear array CCD which is used for detecting the seed sowing distance uniformity in indoor bench tests and field operation tests during the development and the performance testing of a seeder. The detection device consists of an external sleeve, an internal sleeve, a liner array CCD digital vidicon, a MCU system, a lighting LED array and a micro fan blower, wherein the external sleeve is fixed on a colter boot of a tested seeder by U-shaped bolts, the internal sleeve with the lighting LED array at the lower end is inserted in the external sleeve, the linear array CCD digital vidicon is inserted in the internal sleeve, and the image collecting and processing MCU system collects images of the liner array CCD under the control of a program, splices the images into a continuous image in a memory and recognizes seed position, counts spacing interval and calculates seed distance by utilizing digital graphic processing technique; and the micro fan blower is used for the dust prevention of the lens of the liner array CCD digital vidicon.
Description
technical field [0001] The invention is a detection device for the uniformity of seeding particle distance of a precision seeder in agricultural production. Background technique [0002] In agricultural production, the seeder is the most basic operating equipment. The key index to evaluate the quality of the seeder is the uniformity of the seeding distance. According to the provisions of "GB6973-86 Single-grain (Precision) Seeder Test Method", the identification of the uniformity of the seeding distance of the seeder requires indoor bench tests and field tests. The basic method for testing the uniformity of the sowing grain distance in the indoor bench test is to place the sowing unit of the planter above a conveyor belt, and the seeds broadcast by the planter unit fall on the moving conveyor belt, and then measure the distance between the seeds on the conveyor belt. The index of uniformity of sowing grain distance is obtained by statistical analysis. In order to reduce t...
Claims
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IPC IPC(8): G01M99/00G01C11/00G06K9/00
Inventor 史智兴蔡洪岳尹辉娟
Owner HEBEI AGRICULTURAL UNIV.