| With the rapid development of the International economy, the market competition becomes fiercely day-by-day and the market put forward higher request on the products in TQCSE (time, quality, cost, price and service) target. In order to meet the needs of globalization competition, Disperse Mold enterprises must head for cooperation. Mold design, product design, CAE simulation and customers must carry on sufficient cooperation, then respective technological advantage can be integrated and high quality products can be designed out.Though CAX(CAD/CAM/CAE) technology has played an important role in improving the designing and manufacturing level of mold, the mold enterprises have their particularity. The isolation of the design resource has caused the problem that existing CAX system can't meet the needs of remote design and development of products because of the particularity of mold enterprise. With the appearance and rapid development of Internet and Web technology, the space-time restriction of the technology exchange has been broken and this makes possible that the mold enterprises realizing Internet-based remote cooperative design.The technology of Internet based remote cooperative design is built on the CSCW (Computer Support Cooperative Work), Internet and Web technology, CAD technology, multimedia technology and concept of concurrent engineering etc. It aims at organizing multi-disciplinary experts to overcome the obstacle of space and time and realizing the remote cooperative design and products development. It is a field that many kinds of subjects crossed, the research on this filed has just started and relevant theory, mode and technology are not well rounded. But it has been got great attention in the enterprises and academia. It is one of the research hotspot of the manufacture industry.In this paper, based on the deep research and analysis in Internet, Web technology and the theory of cooperative design, the different modes of Internet based mold cooperative design are put forward integrated with the features of the mold enterprises and Web based remote mold cooperative design platform isexploited. The main research contents are as follows:1. Internet based remote cooperative design is the application in the field of product design of CSCW theory. Firstly the Web based CSCW technology is discussed and the important method that the Web based share workspace is discussed. Based on the analysis of relation of CSCW, CAD and cooperative design, the theory of Internet based cooperative design is researched and the Web based cooperative support environment is analyzed. Then the different levels of development and key technology are emphasized.2. The Internet based remote cooperative design modes for mold enterprises are put forward. The cooperative design modes between the enterprises of the mold can be divided into low, mediate and high levels according to the different coupling of information exchange and informatization of the enterprise. The mediate level cooperation can be adopted by small and mediate mold enterprises. Through the extension to Web function and the exploiting of the cooperative design, the remote cooperative design mode, which can be used by mold enterprises, is put forward. The relevant exploiting method and key technology are discussed.3. The frame of Web based cooperative design platform based on BAV/D structure is built. The function module and basic working theory of the system are put forward. Through the analysis and comparison of C/S system structure and BAV/D system structure under network environment. The cooperative design platform is exploited with ASP, DHTML, ACTIVEX technology and the overall frame and function are designed and analyzed. The choice of the server and Web database are discussed. The whole platform is built on Win2000 Server + IIS5. 0 + SQL SERVER.4. This article mainly researched the method of access to Web database using ADO and groupware technology of ASP. It provides uniform resource of cooperative design and information exchang... |
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