Dynamic accessing technology of 3D geometric modeling for collaborative design
协同三维几何建模动态访问技术研究*

To solve the dynamic accessing of geometric modeling for collaborative design, researched several key technologies and presented a distributed system structure of collaborative design. Developed the organization mode of dynamic data exchange, which carried out the real-time exchange and consistency of the dynamic data among the different platforms and CAD systems. Developed an object-oriented priority-based optimistic concurrency control protocol (OPOCCP), which ensured high efficiency and consistency of sharing model and data at different sites. Integrated all the technologies,realized the dynamic acces-sing technology of 3D geometric modeling for collaborative design. Finally, took an example to validate the dynamic accessing technologies.