Design and Implementation of an Intelligent Log Diameter Grading and Sorting Line Based on Machine Vision
In order to address the challenges posed by elevated manual labor costs and limited automation in traditional log diameter grading and sorting processes, this paper centers on the design and research of an intelligent log diameter grading and sorting line utilizing machine vision. The study focuses...
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| Format: | Article |
| Language: | English |
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MDPI AG
2024-02-01
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| Series: | Forests |
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| Online Access: | https://www.mdpi.com/1999-4907/15/2/387 |
| _version_ | 1797298208781631488 |
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| author | Zhigang Ding Yangyang Gong Linghua Kong Jishi Zheng |
| author_facet | Zhigang Ding Yangyang Gong Linghua Kong Jishi Zheng |
| author_sort | Zhigang Ding |
| collection | DOAJ |
| description | In order to address the challenges posed by elevated manual labor costs and limited automation in traditional log diameter grading and sorting processes, this paper centers on the design and research of an intelligent log diameter grading and sorting line utilizing machine vision. The study focuses on logs with smaller diameters located in Fujian province, China. By analyzing production requirements, the study formulates the structure of the feeding, alignment, detection, and sorting zones to fulfill sorting functions. Using the YOLOv5 model, the system achieves accurate log end face positioning, and the diameter is computed through a designated algorithm. The operational process of the system is examined, and the control logic governing the production line is elucidated. Evaluating the practical performance of the production line, the study assesses the accuracy of diameter recognition, precision in grading, and operational efficiency. The results reveal that the absolute error in diameter detection for the sorting line averages 1.12 mm, with sorting accuracy exceeding 95%. The sorting line can automatically categorize logs with diameters ranging from 60 mm to 300 mm and lengths ranging from 2 m to 6 m, achieving an annual sorting capacity of 120,000 to 130,000 cubic meters. The research findings illustrate that the system fulfills the industry’s demands for log diameter grading and sorting, thereby enhancing economic efficiency for enterprises. |
| first_indexed | 2024-03-07T22:31:56Z |
| format | Article |
| id | doaj.art-b6a21b1dbebd461c92553a0b55867837 |
| institution | Directory Open Access Journal |
| issn | 1999-4907 |
| language | English |
| last_indexed | 2024-03-07T22:31:56Z |
| publishDate | 2024-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Forests |
| spelling | doaj.art-b6a21b1dbebd461c92553a0b558678372024-02-23T15:17:06ZengMDPI AGForests1999-49072024-02-0115238710.3390/f15020387Design and Implementation of an Intelligent Log Diameter Grading and Sorting Line Based on Machine VisionZhigang Ding0Yangyang Gong1Linghua Kong2Jishi Zheng3School of Mechanical and Automotive Engineering, Fujian University of Technology, Fuzhou 350118, ChinaSchool of Mechanical and Automotive Engineering, Fujian University of Technology, Fuzhou 350118, ChinaSchool of Mechanical and Automotive Engineering, Fujian University of Technology, Fuzhou 350118, ChinaDigital Fujian Industrial Manufacturing Internet of Things Laboratory, Fuzhou 350118, ChinaIn order to address the challenges posed by elevated manual labor costs and limited automation in traditional log diameter grading and sorting processes, this paper centers on the design and research of an intelligent log diameter grading and sorting line utilizing machine vision. The study focuses on logs with smaller diameters located in Fujian province, China. By analyzing production requirements, the study formulates the structure of the feeding, alignment, detection, and sorting zones to fulfill sorting functions. Using the YOLOv5 model, the system achieves accurate log end face positioning, and the diameter is computed through a designated algorithm. The operational process of the system is examined, and the control logic governing the production line is elucidated. Evaluating the practical performance of the production line, the study assesses the accuracy of diameter recognition, precision in grading, and operational efficiency. The results reveal that the absolute error in diameter detection for the sorting line averages 1.12 mm, with sorting accuracy exceeding 95%. The sorting line can automatically categorize logs with diameters ranging from 60 mm to 300 mm and lengths ranging from 2 m to 6 m, achieving an annual sorting capacity of 120,000 to 130,000 cubic meters. The research findings illustrate that the system fulfills the industry’s demands for log diameter grading and sorting, thereby enhancing economic efficiency for enterprises.https://www.mdpi.com/1999-4907/15/2/387timber diameter sortingmachine visiondeep learningPLCYOLOv5 |
| spellingShingle | Zhigang Ding Yangyang Gong Linghua Kong Jishi Zheng Design and Implementation of an Intelligent Log Diameter Grading and Sorting Line Based on Machine Vision Forests timber diameter sorting machine vision deep learning PLC YOLOv5 |
| title | Design and Implementation of an Intelligent Log Diameter Grading and Sorting Line Based on Machine Vision |
| title_full | Design and Implementation of an Intelligent Log Diameter Grading and Sorting Line Based on Machine Vision |
| title_fullStr | Design and Implementation of an Intelligent Log Diameter Grading and Sorting Line Based on Machine Vision |
| title_full_unstemmed | Design and Implementation of an Intelligent Log Diameter Grading and Sorting Line Based on Machine Vision |
| title_short | Design and Implementation of an Intelligent Log Diameter Grading and Sorting Line Based on Machine Vision |
| title_sort | design and implementation of an intelligent log diameter grading and sorting line based on machine vision |
| topic | timber diameter sorting machine vision deep learning PLC YOLOv5 |
| url | https://www.mdpi.com/1999-4907/15/2/387 |
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