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Detection of Scots Pine Single Seed in Optoelectronic System of Mobile Grader: Mathematical Modeling

Novikov, Arthur and Lisitsyn, Victor and Tigabu, Mulualem and Tylek, Pawel and Chuchupal, Sergey (2021). Detection of Scots Pine Single Seed in Optoelectronic System of Mobile Grader: Mathematical Modeling. Forests. 12 , 240
[Journal article]

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Abstract

The development of mobile optoelectronic graders for separating viable seeds by spectrometric properties with high detection accuracy represents a very relevant direction of development for seed handling operations. Here, the main parameters of the radiation source and receiver for detecting a single seed in the diagnostic system of a mobile grader were modeled based on the principles of technical optics using Scots pine (Pinus sylvestris L.) seeds as a case study. Among the pine seeds in the seed batch, there are fossilized and empty seeds that are exactly the same in geometric and gravitational parameters as live seeds. For their separation from the seed batch, data from spectrometric studies in the near-infrared (980 nm) region can be used. To substantiate the parameters of the light source, a geometric optical model of optical beam formation was considered, while the energy model of optical beam formation was considered to substantiate the parameters of the light detector. The results of this study show that the signal value depended on the orientation of a single seed relative to the recording window. The beam angle from the radiation source should be within 45 degrees. The difference between the optical streams should be 50 microns, which made it possible to clearly detect the signal at a standard noise level of 15 microns and signal-to-noise detection accuracy ratio of 56.3 dB. This study expands theoretical knowledge in the field of the spectrometric properties of a single seed, considering the cases of its orientation relative to the optical beam, which affected the effective area of detection of the seed. The obtained data on the location of the main elements of the diagnostic system will speed up the design of mobile optoelectronic graders, and the development of a contemporary protocol for improving Scots pine seed quality.

Authors/Creators:Novikov, Arthur and Lisitsyn, Victor and Tigabu, Mulualem and Tylek, Pawel and Chuchupal, Sergey
Title:Detection of Scots Pine Single Seed in Optoelectronic System of Mobile Grader: Mathematical Modeling
Series Name/Journal:Forests
Year of publishing :2021
Volume:12
Article number:240
Number of Pages:18
Publisher:MDPI
ISSN:1999-4907
Language:English
Publication Type:Journal article
Article category:Scientific peer reviewed
Version:Published version
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 401 Agricultural, Forestry and Fisheries > Forest Science
Keywords:forest seeds, seed sorting, Pinus sylvestris, optoelectronic grader, geometric model, energy model, near-infrared region
URN:NBN:urn:nbn:se:slu:epsilon-p-111258
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-111258
Additional ID:
Type of IDID
DOI10.3390/f12020240
Web of Science (WoS)000622528100001
ID Code:22865
Faculty:S - Faculty of Forest Sciences
Department:(S) > Southern Swedish Forest Research Centre
Deposited By: SLUpub Connector
Deposited On:01 Apr 2021 06:43
Metadata Last Modified:01 Apr 2021 06:51

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