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Process Information-Driven 3D Working Procedure Model Construction

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5 Author(s)
Yunfei Shi ; Key Lab. of Contemporary Design & Integrated Manuf. Minist. of Educ., Northwest Poly Tech. Univ., Xian ; Shusheng Zhang ; Haitao Fan ; Julu Cao
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The working procedure model (WPM), which is composed by a set of models, is used to describe a process of a part made from roughcast to product. And the WPM plays a key role while part being produced. The process information comprises process drawing and process steps and shows a sequencing and asymptotic course that a part is made. The 3D model canpsilat be constructed automatically by the existing method of parameterized design. Focusing on process sheets, this paper studies how to apply and implement the natural language understanding into the 3D reconstruction is researched. The method of asymptotic approximation product was proposed, which constructs 3D process model automatically and intelligence. Compared with the traditional 3D model reconstruction based on orthographic projections or engineering drawing, the process information has some advantages followed. On the one hand, the reconstruction object is translated from the complicated engineering drawing into a series of more simple process drawing. With added plentiful process information for reconstruction, the disturbances are avoided such as irrelevant graph, symbol and label etc. And more, the form change of both neighbor process drawings is so little that the engineering drawings interpretation is no difficulty; in addition, the abnormal solution and multi-solution can be avoided during reconstruction, and the problems how to be applicable to more objects is solved ultimately. Therefore, the utility method for 3D reconstruction model will be possible. On the other hand, the WPM not only includes the information about parts characters, but also can deliver the information of design, process and engineering to the downstream.

Published in:

Information Processing (ISIP), 2008 International Symposiums on

Date of Conference:

23-25 May 2008