摘要
准确评估1553B总线的性能指标对于综合航电系统的设计有着重要的意义。基于着色Petri网CPN(Colored PetriNet)建立了1553B总线模型。模型利用分层思想,将总线结构模块化,描述消息在总线上传输的动态过程。在周期性消息的基础上同时考虑非周期性消息,更加符合1553B总线的实际情况。利用TimeNET软件进行仿真,计算总线负载和时延等性能指标,验证模型的准确性和有效性,为综合航电系统的设计、评价和完善提供重要的理论依据。
Evaluating the performance of the 1553B bus accurately is of great significance to the design of the integrated avionics system. A 1553B bus model was established based on Colored Petri Net( CPN). The model modularized the bus structure by taking advantage of the hierarchical idea and described the dynamic process of message transmission on the bus. Non-periodic messages were also considered on the basis of periodic messages. This was more in line with the actual situation 1553B bus. We used Time NET software to simulate,calculated the bus load and delay and other performance indicators,verified the accuracy and effectiveness of the model,and provided an important theoretical basis for the design,evaluation and improvement of the integrated avionics system.
出处
《计算机应用与软件》
北大核心
2018年第2期310-315,共6页
Computer Applications and Software
