CPSSim: Simulation framework for large-scale Cyber-Physical Systems
CPSSim: Simulation framework for large-scale Cyber-Physical Systems
复制标题
CPSSim：大规模信息物理系统仿真框架
DOI：
10.1109/cpsna.2013.6614245
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发表时间：
2013
期刊：
影响因子：
--
通讯作者：
C. Shih
中科院分区：
文献类型：
--
作者：
Chia;C. Shih
由于在过去的三十年中嵌入式、实时和控制系统的积极发展，我们现在正处于将这些经过充分研究/设计的系统集成为大规模复杂系统的时代，称为网络物理系统，以提供上下文感知和以用户为中心的服务。在开发CPS的过程中，一个主要的挑战是如何将不同社区开发的技术整合到一个连贯的系统中。本文介绍了CPSsim的设计和实现，这是一个框架，集成多个模拟器，每个模拟离散或连续系统，模拟联邦系统。CPSsim使开发人员能够使用为CPS的子系统指定的模拟器，并了解集成系统的行为。因此，没有必要从头开始构建新的模拟器。为了模拟信息物理系统，该框架同时模拟以不同速率工作的子系统，并解决了可扩展性问题。此外，CPSsim针对仿真器之间的同步问题，每个仿真器可能采用不同的仿真模型，并具有不同的时序特性。为了证明其有效性，我们使用主动列车控制作为一个例子CPS和评估其性能。
Thanks to the active development on embedded, real-time, and control systems in last thirty years, we are now in the era of integrating these well-studied/designed systems as a large scale and complex systems, called Cyber-Physical Systems, to provide context-aware and user-centric services. In the processing of developing CPS, one of the major challenges is how to integrate the technologies developed by different communities into a coherent system. This paper presents the design and implementation of CPSsim, which is a framework to integrate several simulators, each of which simulates either discrete or continuous systems, to simulate the federated system. CPSsim enables the developers to use the simulators designated for the sub-systems of a CPS and to understand the behavior of the integrated system. Hence, there is no need to build a new simulator from scratch. In order to simulate the cyber-physical systems, the framework concurrently simulates the sub-systems working at different rates, and tackles the scalability issue. Furthermore, CPSsim targets the synchronization issue among simulators, each of which may adopt different simulation models and has different timing properties. To demonstrate the effectiveness, we use active train control as an example CPS and evaluate its performance.