Hardwood Log Breakdown Decision Automation
Keywords:
Log breakdown, hardwood, decision automation, pattern-directed inferencing, wood engineeringAbstract
This paper examines the use of internal log defect information, such as can be obtained from noninvasive defect detection imaging, e.g., computed tomography, magnetic resonance, etc., in the automation of log breakdown decisions for hardwood logs. A method was developed to extract the information and convert it into a form that can directly drive the saw equipment controllers to perform the log breakdown. This method illustrates the feasibility of hardwood log breakdown decision automation.References
Chang, S. J., J. R. Olson, and P. C. Wang. 1989. NMR imaging of internal features in wood. Forest Prod. J. 39(6):43-49.nChoi, B. K., M. M. Barash, and D. C. Anderson. 1984. Automated recognition of machined surfaces from a 3d solid model. Computer Aided Design 16(2):81-86.nDI-3000 User's Guide. 1984. Precision Visuals, Boulder, CO.nDonald, G. H., W. C. Anderson, and C. W. McMillin. 1990. The economic potential of CT scanners for hardwood sawmills. Forest Prod. J. 40(3):65-69.nFunt, B. V., and E. C. Bryant. 1987. Detection of internal log defects by automatic interpretation of computer tomography images. Forest Prod. J. 37(1):56-62.nHenderson, M. R., and D. C. Anderson. 1987. Computer recognition and extraction of form features: A cad/cam link. Computers in Ind. 5:329-339.nHuang, S. S. L., and F. T. Sparrow. 1989. Computer-aided instruction tool for grading hardwood lumber. Forest Prod. J. 39(10):39-42.nMashburn, T. 1987. A polygonal solid modelling package. Unpublished M.S. thesis, Department of Mechanical Engineering, Purdue University, West Lafayette, IN.nOcceña, L. G., and J. M. A. Tanchoco. 1988. Computer graphics simulation of hardwood log sawing. Forest Prod. J. 38(10):72-76.nOcceña, L. G., and J. M. A. Tanchoco. 1989. Pattern-directed extraction and characterization of defect configurations in solid log models. Int. J. Artificial Intell. in Eng. 4(3):144-154.nPreparata, F. P., and M. I. Shamos. 1985. Computational geometry. Springer-Verlag, New York, NY.nTaylor, F. W., F. G. Wagner, Jr., C. W. McMillin, I. L. Morgan, and F. F. Hopkins. 1984. Locating knots by industrial tomography—a feasibility study. Forest Prod. J. 34(5):42-46.nWagner, F. G., F. W. Taylor, D. S. Ladd, C. W. McMillin, and F. L. Roder. 1989. Ultrafast CT scanning of an oak log for internal defects. Forest Prod. J. 39(11):62-64.n
Downloads
Published
Issue
Section
License
The copyright of an article published in Wood and Fiber Science is transferred to the Society of Wood Science and Technology (for U. S. Government employees: to the extent transferable), effective if and when the article is accepted for publication. This transfer grants the Society of Wood Science and Technology permission to republish all or any part of the article in any form, e.g., reprints for sale, microfiche, proceedings, etc. However, the authors reserve the following as set forth in the Copyright Law:
1. All proprietary rights other than copyright, such as patent rights.
2. The right to grant or refuse permission to third parties to republish all or part of the article or translations thereof. In the case of whole articles, such third parties must obtain Society of Wood Science and Technology written permission as well. However, the Society may grant rights with respect to Journal issues as a whole.
3. The right to use all or part of this article in future works of their own, such as lectures, press releases, reviews, text books, or reprint books.