基于Ptolemy的嵌入式计算系统级建模与仿真

Modeling and Simulation of Embedded-Computing Systems in Ptolemy

嵌入式系统通常由具有不同特性的子系统组成,它的异构性给设计与仿真工具提出了很高的要求。本文探讨了目前建模仿真平台的不足,介绍了Ptolemy如何运用层次异构设计思想解决嵌入式系统的异构问题,以及该设计原理在其第二代建模仿真平台PtolemyII中的实现方法。并基于PtolemyII对一复杂控制系统进行了建模与仿真。

Embedded systems are usually composed of subsystems with very different characteristics. Their heterogeneity puts high demands on design and simulation tools. The paper discusses the shortage of the current modeling and simulation platforms, introduces how Ptolemy addresses the problem by hierarchical heterogeneity, and describes the design principles implemented in the Ptolemy II software. At last, a complicated control system is modeled and simulated based on Ptolemy II.