摘要
该文基于网络交换节点传输特性的辨识模型,提出了一种基于混合petri网的节点仿真模型,以及利用该模型进行网络建模的方法。分析了交换节点混合petri网模型的仿真精度,给出了保证信息量守恒的仿真条件。对于不能消除的误差,分析了其在仿真过程中的动态范围,得出了模型能够自动补偿的结论。通过建立一个网络的混合petri网模型,并利用visu-alobjectnet2.0进行了信息传输过程仿真。仿真结果说明该网络模型能够很好地模拟信息传输的动态过程,能够体现网络交换节点的非线性传输特性。
In this paper, the hybrid petri net model of network exchanging node according to an identification model and the way for developing the model of the whole network using these models were proposed. To validate the correctness of simulations, we analyzed the errors of simulation and found the condition to keep the conservation of information transfer. To the errors that can' t be avoided, we proved that our model can repaire them automatically. The model of a simple network was established by this method, and a data transfer teat was simulated with Visual Object Net2. 0. This test proves that the modeling and simulation of computer network can simulate the dynamic of data transfer perfectly and the nonlinear of the exchanging node.
出处
《计算机仿真》
CSCD
2005年第6期88-91,共4页
Computer Simulation
