网格环境下基于HLA的分布交互仿真动态交互研究

HLA-based Dynamic Interactive of Distribute Interactive Simulation under Grid Environment

基于HLA开发的分布交互仿真缺乏灵活性,不支持动态资源分配。网格服务是开发基于网络的分布交互仿真的另一途径,但只应用网格服务开发分布交互仿真,开发者必须自己创建通信机制来协调仿真执行。本文提出了一个动态交互框架,将基于HLA的分布交互仿真建立在网格服务的基础之上,来克服两者所存在的问题并发挥各自的优点,实现仿真资源的动态分配、动态状态监控及任务动态迁移。文中详细地阐述了框架的构成、框架关键服务构建的设计和实现、各种网格服务的机制及服务接口,并给出实例进行验证。

The HLA-based simulation is short of flexibility and does not support dynamic resource assign ation. Grid service is another method to devedop distribute interactive simulation based on network,only using grid service to develop distributed simulation, and developer had to establish communication mechanism to make simulation smooth by self. In this paper, a dynamic structure framework is proposed. The framework develops distribute interactive simulation based on HLA under grid environment to overcome the defects of both technologies and to resolve the problems of dynamic distribution of resource , dynamic monitoring of situation and dynamic migration of tasks. The components of the framework, the mechanism of various services and the implement of interface are discussed in detail, and an experiment was provided in the end of the paper.