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Research on the Realtime Collaborative Design Platform Based on AutoCAD

Author: MaoYong
Tutor: ChenTianXing
School: Southwest Jiaotong University
Course: Mechanical Design and Theory
Keywords: Real-time collaborative design Object data AutoCAD Privilege
CLC: TP391.72
Type: Master's thesis
Year: 2011
Downloads: 54
Quote: 0
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Abstract


Computer Supported Collaborative Design (CSCD) is a practical application that computer supported cooperative work (CSCW) technology is applied in the CAD field. The fast development of the information and computer science technology and globalization of the manufacture industry has made the collaborative CAD based on internet platform becomes a newly developing technology. It is a new type of design model that can be used by companies, which are distributed in different areas with different edges, but it shares a common ideology of the concurrent and collaborative design in a new product developing process. This new methods can be so widely used in different companies that even it makes a new focus of research in this area.Real-time collaborative design is one of many key issues which affects the development of CAD based on internet platform technology. The network bandwidth and extreme high Real-time requirements has limited the wide application of the computer supported cooperative work (CSCW) technology in CAD fields. This paper combines the distributed structure and central-distributed structure together to build up a Real-time design platform with a graphic database based on internet platform inside, and extends the internet function of AutoCAD software. It has solved the problem concerning consistency and uniqueness of an Object data, and made companies share object data and human resource. During the interaction process, the object data are dynamically stored, which greatly reduces the amount of data transmitted through the internet, and meet the real-time requirements for the prototype platform of the Computer Supported Collaborative Design. The major contributions of this paper are listed as follow:1. Analyze the system model, working pattern and classification of the collaborative design system, and employs NSCD model and working pattern.2. Extend AutoCAD functions, and allow it to share data on internet platform during collaborative design process.3. To introduce a new mechanism to manage members and members’privileges. By using privilege -granted mechanism, one member can design while other members can watch the design process at one time. When another member requests a design privilege, after former member gives up his design privilege to the host or former members privilege is revoked by the host, and host re-grants the design privilege to that member, then the requested member can have the design privilege, this mechanism solve the concurrent problem when members are using or modifying the graphic data, and helps to improve the information security of the platform.

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CLC: > Industrial Technology > Automation technology,computer technology > Computing technology,computer technology > Computer applications > Information processing (information processing) > Machine-assisted technology > Machine -aided design (CAD), aided drawing
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