Non-standard knowledge acquisition method used for constructing mechanical product design knowledge base

A technology of mechanical products and design knowledge, which is applied in the field of knowledge base system realization, can solve problems such as not being able to adapt to non-standard knowledge representation and acquisition, and achieve the effect of standardization and standardization, good use effect, and elimination of hindrance

Inactive Publication Date: 2009-07-08
SICHUAN UNIV
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  • Application Information

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Problems solved by technology

The existing technical methods at home and abroad mainly focus on the description and processing methods of normative knowledge in the mechanical design process, and the design knowledge representation still uses t

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  • Non-standard knowledge acquisition method used for constructing mechanical product design knowledge base
  • Non-standard knowledge acquisition method used for constructing mechanical product design knowledge base
  • Non-standard knowledge acquisition method used for constructing mechanical product design knowledge base

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Embodiment Construction

[0043] In order to understand the present invention more clearly, the following will further discuss the present invention in detail in combination with the accompanying drawings and the examples completed by the inventor according to the technical solution of the present invention.

[0044] 1. Define non-standard knowledge granularity

[0045] The present invention adopts the triplet (K, F, Γ) to formally define the knowledge granularity of mechanical product design, wherein: K represents all design knowledge domains involved in the product specification, and the set of design knowledge considered. F is an attribute function, which is defined as F: K → y, where y represents the attribute set of design knowledge. Γ represents the structure of the domain of design knowledge, which is defined as the relationship between various elements of design knowledge in the domain of design knowledge.

[0046] 2. Construct a calculation model for the granularity division of non-normative ...

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Abstract

The invention discloses a method for obtaining irregular knowledge used for constructing a mechanical product design knowledge base. Aiming at the requirements for knowledge processing and knowledge base system development in the mechanical product design field, the invention defines the irregular knowledge, discloses a computation module for dividing irregular knowledge granularity by adopting granularity calculation principle, studies mechanical product design irregular knowledge base structure system and basic format, discloses an irregular knowledge base display method based on metadata, and invents a method for obtaining semantic matching, irregular knowledge base in serial data source, and multi-mode irregular knowledge based on irregular example knowledge obtaining of cluster analysis; and on the basis, designs a system frame and a prototype software system for mechanical product design knowledge base system construction and application. The invention can be used to solve the technical problem of treating irregular knowledge in an information processing system such as CAD (computer-aided design), CAM (computer-aided manufacturing), CAE (computer-aided engineering) or PDM (products data management) in manufacturing industry, so as to satisfy the requirements for the deepening development of the manufacturing industry information project technology.

Description

1. Technical field [0001] The invention belongs to the technical field of mechanical product development, and relates to non-normative knowledge representation, non-normative knowledge granularity, non-normative knowledge primitive structure and acquisition method and knowledge base system realization method in the mechanical product design and manufacture process. 2. Background technology [0002] In order to adapt to the rapidly changing requirements of the current mechanical product equipment market, mechanical product development technology is developing in the direction of intelligence, digitalization, and technology that supports innovative design, and intelligence, digitalization, and innovative design are based on the rapid development of relevant data information and knowledge. Based on effective acquisition, processing, delivery and application. The knowledge in the field of mechanical product design and manufacturing technology is rich in connotation, with the cha...

Claims

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Application Information

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IPC IPC(8): G06F17/30G06F17/50
Inventor 殷国富殷鹰徐雷
Owner SICHUAN UNIV
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