东南大学学报（自然科学版）Issue(5)：828-833,6.DOI:10.3969/j.issn.1001-0505.2015.05.003
基于建模历史一致性的协同 CAD 并发控制方法
Collaborative CAD concurrency control method based on consistency of modeling history
摘要
Abstract
To avoid the inconsistency of modeling history in the online integration of computer aided design (CAD)systems,a collaborative CAD concurrency control method base on the consistency of modeling history is proposed.First,the relationship between CAD modeling operations is analyzed. Then,a concurrency control model based on modeling history is constructed.In this model,the cau-sality maintenance between modeling operations is achieved by state vectors.The partial concurrent relations between modeling operations are solved by refactoring operation history.The modeling op-erations with the concurrent relationship are divided into commute,mask and mutex and processed separately.Finally,a collaborative CAD concurrency control method which supports the consistency of modeling history is designed.The operation generated by the local site is executed immediately and the remote site calls the mechanisms of the concurrency control model to implement concurrency control of remote operations.The experimental results demonstrate that the proposed method can not only provide reasonably free and concurrent interaction in collaborative CAD environment,but also maintain the consistency of modeling history for each collaborative site.关键词
协同 CAD 系统/建模历史/状态向量/偏并发/并发控制Key words
collaborative computer aided design (CAD)system/modeling history/state vector/par-tial concurrent/concurrency control分类
信息技术与安全科学引用本文复制引用
张德军,何发智..基于建模历史一致性的协同 CAD 并发控制方法[J].东南大学学报（自然科学版）,2015,(5):828-833,6.基金项目
国家自然科学基金资助项目（61472289）、湖北省自然科学基金资助项目（2015CFB254）． （）
