基于仿真建模的设备网格技术研究

通过网络共享,分布在各地的仪器设备可以显著提高资源的易访问性和利用率。针对目前实现设备资源网上共享所存在的各种问题,提出一种基于仿真建模的多层设备网格体系结构,介绍了设计原理、基本框架,并给出网络层、资源协议层、资源封装层、中间件层、仿真建模层、应用层、网格门户和安全机制等具体实现技术。其核心是建立共享仪器的仿真模型作为其虚拟映像,通过仿真模型实现设备资源远程访问、管理以及优化调度,克服了通过网络共享不同类型仪器设备的困难。在“211工程”项目——全国高校仪器设备和优质资源共享系统设计中的应用效果验证了所提出的设备网格技术的有效性和可行性。

Study of equipment grid based on simulation and modeling

The distributed instruments and equipments sharing via network can improve accessibility and utilization remarkably. Taking into consideration of various problems to realize equipment resources sharing on network, a multi-layer equipment grid architecture based on the idea of simulation and modeling was put forward. The design principles and basic framework were discussed. Its implementation technologies for equipment grid were given, such as network layer, protocol layer, resource encapsulation layer, middleware layer, simulation and modeling layer, application layer, grid portal, and security mechanism, etc. The core approach was to build simulation model for shared equipments as their virtual images, which were used to access, manage and schedule remote resources to solve the problem of different types equipments sharing via network. Its efficiency and feasibility were proved with good performance in the one of '211 Project'-National University Equipment and Resource Sharing System.