Research on Distributed Synchronous CAD Collaborative Design System

The paper explores the key problems in CAD collaborative design of distributed synchronization. According to the characteristics of AutoCAD, the transmission of real-time operation command is replaced by modified underlying database, which improves the transmission speed of concurrent collaboration and reduces errors of real-time transmission. The paper presents the structure of the whole collaborative design system and expounds some key techniques of it, including the interface, data transmission, conflict elimination, fault disposal, etc.