Analysis of sawing strategy and sawing angle for log automatic sawing and angle regulation machine based on infrared detection
In order to improve the automation and processing efficiency of log sawing equipment and ensure the output rate of log sawing, an automatic sawing and turning concept prototype was designed based on infrared detection. Algorithms of sawing strategy and sawing angle were analyzed, and the test platfo...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Zhejiang University Press
2018-07-01
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| Series: | 浙江大学学报. 农业与生命科学版 |
| Subjects: | |
| Online Access: | https://www.academax.com/doi/10.3785/j.issn.1008-9209.2018.07.170 |
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| Summary: | In order to improve the automation and processing efficiency of log sawing equipment and ensure the output rate of log sawing, an automatic sawing and turning concept prototype was designed based on infrared detection. Algorithms of sawing strategy and sawing angle were analyzed, and the test platform for log outline detection device was applied to verify the proposed algorithms. The log outline detection device adopted an infrared distance measuring sensor to detect the eight-position parameters uniformly distributed on the outer contour of an arbitrary cross-section of the log. The polygon composed of eight points could approximately represent the outer contour of the log cross- section. Approximate octagonal profiles with different axial cross-sections were clipped with the Weiler-Atherton algorithm, and the least square method was used to fit the clipped polygon into elliptical effective regions. The result showed the ellipse fit well with the profile of the cross-section of the log small-end. It is suggested that the sawing strategy and sawing angle calculation method based on the fitted ellipse are feasible for the sawing analysis of logs with less curvature and taper. |
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| ISSN: | 1008-9209 2097-5155 |