虚拟样机协同设计并发控制策略研究  

Research on concurrency control mechanism for collaborative of virtual prototype

作　　者：张雪平[1] 殷国富[2] 

机构地区：[1]宜宾学院电子工程系,四川宜宾644007 [2]四川大学制造科学与工程学院,成都610065

出　　处：《计算机应用研究》2008年第10期2959-2961,共3页Application Research of Computers

基　　金：国家自然科学基金资助项目(50275100)

摘　　要：针对虚拟样机协同设计中数据量大、事务长、多层嵌套的问题,提出了一种基于事务语义的并发控制策略,阐述了并发控制机制中事务结构、事务提交、锁机制和冲突协调等关键性问题。根据数据要求生成复制事务,事务发生改变后,其他站点能够实时显示图形、实时读取数据。实例证明,基于事务语义的并发控制策略保证协同用户自由地操作共享资源,提高了并发控制的可靠性和数据的一致性。To contrapose such problems as large volume of data, long-term transaction process and nested layer in collaborative of virtual prototype, this paper established a new strategy of collaborative design. Then discussed the relationships among structure, transaction submission, the inter-lock mechanism and conflict harmonization. According data requirements to replicate contents, other stations can read data and show the graph when data are changed. It is verified that the Concurrency control strategy not only enabled the collaborative users handle shared resources freely, but also ensured the agility concurrency control and the consistency of real-time data by an application example.

关 键 词：虚拟样机 协同设计 并发控制 事务语义 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]