摘要
为了实现分布式虚拟设计过程中的信息共享、协作以及冲突消解 ,建立了一个面向分布式虚拟设计的协同工作环境 描述了系统体系模型的研究方法和基于CORBA的多层分布式结构 ,详细介绍了基于TCP/IP协议和基于面向对象的运行时期类型信息 (RunTimeTypeInformation ,RTTI)技术的实体实时通信协议的技术内涵、执行流程和设计实现 ,该协议用于保持网络中不同结点的几何模型在实体级别上的一致性 对分布式虚拟设计中的并发性问题进行了探讨 ,采用实体锁定机制实现了某些环节的冲突消解 。
In this paper, a cooperative work environment oriented to distributed virtual design is established to provide information sharing, collaboration and conflict resolution. The CORBA based multi-tier structure of the system architecture model is presented and the study method to the system is introduced. The technical connotation, executive flow and implementation of the entity real-time communication protocol based on TCP/IP and Object Oriented RTTI are introduced in detail. The model is used to maintain the consistency of geometrical model on entity level between different network nodes. The concurrency problem of distributed virtual design is discussed, and some conflict problem is resolved by locking entity, with several arbitration methods on the locking entity compared.
出处
《计算机辅助设计与图形学学报》
EI
CSCD
北大核心
2005年第1期143-150,共8页
Journal of Computer-Aided Design & Computer Graphics
基金
中国科学院计算技术研究所智能信息处理重点实验室开放课题(IIP20021)
武汉市重点科技项目(20011001003)
武汉市重大科技攻关项目(2002300513304)
关键词
虚拟现实
虚拟设计
协同工作
分布式环境
virtual reality
virtual design
cooperative work
distributed environment
