Study On Real-Time Cooperative Design System Based On AutoCAD

Concurrent Engineering, Agile Manufacturing and Flexible Manufacturing are the production patterns in the 21 centuries. Computer Supported Cooperative Design, CSCD, is an important part of Concurrent Engineering. It is important that managers, designers, manufacturers and users are able to participate in the design at different places synchronously or asynchronously. With its help, the quality of design can be improved and the efficiency of design can be raised.The technique of Real-time Cooperative Design is one of research topics in CSCD. The study in this paper is supported by the NSFC (No.59875087 and No.51075113). In this paper, the fundamental conception, characteristic, function and requirement, the system structure of CSCD and the environment, platform, tools of cooperative design system are systematically summarized. The plan of Real-time Cooperative Design system is proposed in order to solve the problems in CSCD. The work pattern of Real-time Cooperative Design and the developing technique of the application system are discussed and studied in detail. The major work in this paper is as follow:â‘  Discussed the key technique of Real-time Cooperative Design system and proposed the solution in order to solve the problems in the structure of traditional Real-time Cooperative Design. A mixed system structure is established. Functions such as conversation, visitation and concurrence are managed by the CSCD server. The transmission and the storage of data are in distributed mode.â‘¡ Based on NetMeeting COM API, the network communications module is developed by using ActiveX in COM. The cooperative mechanism of multi-users is established, the flexibility of the system is improved and the multi-location real-time cooperative design is realized.â‘¢ The interactive interface of system is developed by using ObjectARX 2000 to visit AutoCAD COM, which improve the interactive function of the system and satisfy the need of real-time cooperative design of product.â‘£ Based on the former outcome, the previous modification-function module is improved to realize multi-entity operation function and hatching function module is added to satisfy the need of various entity design.