| On the background of the economy and trading globalization, the competition between the industries is more and more heavily. Then the Concurrent Engineering(CE) and Agile Manufacturing(AM) appeared to shorten designing time ,lower cost, improve quality of product. For the development of network and computing technology , the Computer Supported Collaborative Design gives CE and AM strong supporting tools .But all of those tools don't support the synchronized collaborative designing between different CAD system. Different CAD systems always through asynchronous datum exchanging to finish information integration . This situation results CAD resources great wasting. So it is very important to find out a way to solve this problem. Through researching the theories inside and outside of the country , we give a way that is based on sharing design operation information to achieve the synchronized collaborative designing between different CAD systems.This thesis first analyzes three level model of collaborative designing system , describes the content and level of collaborative system from the whole view. After analyzing of concentrated and duplication system structure, we work out compound structure. This structure can work on the situation of low network speed, it also can improve the ability of system controlling. The third chapter analyzes the content structure of collaborative design system from resolving conflict and task implementing two aspects, and point out that keeping consistency, access controlling , assistant collaboration are three main function module. The forth chapter explains the background of the method based on sharing operating information, analyzes its principle and how to implement, explains the message mechanism in windows operating system, how to update CAD model, and the mapping mechanism based on CAD command, gives the method to get co-operating . The fifth chapter introduce how to carry out monitor module, message disposal module and communication module, also introduce the system prototype how to begin a collaboration work.The research and development of the tool that supports synchronized collaborative designing between different CAD system can improve usage of CAD resource and speed of designing, reduce cost of design step, enrich the content and method of... |