基于混和Petri网的公路仿真系统模型

Model of highway simulation system based on hybrid Petri net

公路仿真系统是连续变量动态系统和离散事件动态系统相互作用的混杂系统。通过分析公路仿真系统的混杂特征,在基于Multi-Agent的仿真框架下,提出利用混和Petri网描述系统中离散事件和连续变量相互作用的观点。在传统混和Petri网的基础上,建立了考虑时变特征的推广混和Petri网模型,并建立了基于推广混和Petri网的公路仿真模型体系。将该模型体系应用于驾驶员速度控制过程。应用结果表明,仿真效果良好。

The highway simulation system is a hybrid system that is consisted of continuous variables dynamic system and disperse events dynamic system. The hybrid features of highway simulation system is analyzed with Multi-Agent simulation framework. It is found that the disperse events and continuous variables can be described by hybrid Petri net. Based on the classic hybrid Petri net, a model of generalized hybrid Petri net is developed, which takes the time-change characters into account. The highway simulation system is set up on the basis of the model of generalized hybrid Petri net. This simulation system is applied to the description of driver＇s operation on vehicle＇s speed control. The application shows that the simulation results are very good. 3 figs, 8 refs.