舰船电子综合化系统总线网络DSPN建模与分析

周期性消息和非周期性消息对舰船电子综合化系统总线网络性能的影响是舰船电子综合化电子系统总线网络设计过程的难点之一.针对该问题,提出采用以确定与随机Petri网(Deterministic and Stochastic Petri Net,DSPN)建立周期性消息的总线网络DSPN模型和考虑非周期性消息的总线网络DSPN模型,有效模拟了周期性消息和非周期性消息在舰船电子综合化系统总线网络传输的动态行为.以TimeNET4.2软件为仿真平台,分别实现了周期性消息的总线网络DSPN模型和考虑非周期性消息的总线网络DSPN模型,研究分析周期性消息和非周期性消息对舰船电子综合化系统总线网络性能的影响.该成果可以为设计满足特定性能要求的舰船电子综合化电子系统总线网络提供理论依据.

Modeling and analysis of bus network in the integrated ship electronic system using deterministic and stochastic petri net

The influence of periodic message and aperiodic message on the performance of the bus network in thein-tegrated ship electronic system (ISES) is one of the difficulties in the design of the bus network in the ISES. Deterministic and Stochastic Petri Net (DSPN) is used as the theoretical tooland the bus network model based on DSPN of the periodic message and the bus network model based on DSPN of the aperiodic message are established respectively, Which caneffect-ively simulate the dynamic behavior of periodic message and aperiodic message in the bus network of the ISES. TimeNET4.2 software is used as the simulation platform, and the bus network model based on DSPN of the periodicmes-sage and the bus network model based on DSPN of the aperiodic message are realized. The influence of periodic message and aperiodic message on the performance of the bus network in the ISES through simulation experiments is analyzed. The results can provide theoretical basis for the design of the bus network in the ISES which meets specific performancerequire-ments.