基于DSPN的1553B总线网络建模及性能分析

MODELLING AND PERFORMANCE ANALYSIS OF 1553B BUS NETWORK BASED ON DETERMINISTIC AND STOCHASTIC PETRI NET

提出一种基于确定与随机Petri网DSPN(Deterministic and Stochastic Petri Net)的1553B总线网络性能分析方法。在探讨DSPN的形式化定义的基础上,基于模块化思想建立1553B总线网络的周期控制模块模型和信道传输模块模型,最终建立1553B总线网络的DSPN模型,并描述1553B总线网络的动态行为特性。通过仿真实验得到了1553B总线网络的总线负载和延迟时间的动态变化曲线,验证了模型的正确性和有效性。所建模型可以为1553B总线网络的设计与分析提供理论依据。

A new method for performance analysis of 1553B bus network based on deterministic and stochastic Petri net （DSPN） is pro- posed. On the basis of discussing the formalised definition of DSPN, periodic control module model and ehalmel ttaasraiasioa m odde made.J of 1553B bus network based on modularisation idea are constructed, and the DSPN model of 1553B bus network is eventually eonatru~, it ef- fectively describes the dynamic behaviour of 1553B bus network. The dynamic variation curves of busload and delay time of 1553 bus network are obtained by simulation experiment; they verify the correctness and effectiveness of the model. The constructed model can provide theoreti- cal basis for the design and analysis of 1553B bus network.