摘要
综合化航空电子系统变得越来越复杂,对总线速率和确定性的要求也越来越高,而时间触发传输可以使光纤通道总线具有确定性。针对采用通用时间调度算法较复杂的问题,提出了一种基于分区域调度的时间触发确定性传输方案,采用循环移位调度的通用化方法生成时间调度表。详细介绍了时间确定性传输方法的基本原理、循环移位调度方法以及具体实现方案,最后通过仿真验证表明该方法正确可行。该方法简单易行,可应用于综合化航空电子系统中。
Integrated avionics systems become more and more complex,which puts forward higher and higher requirement for speed and deterministic performance of bus network.However,time-triggered transmission can make the fibre channel(FC) bus deterministic.According to the complexity problem of general time scheduling algorithm,a time-triggered deterministic transmission method based on sub-regional scheduling is proposed in which universal method of cyclic shift scheduling is employed for generating time schedule.The basic theory,cyclic shift scheduling method,and the implementation scheme are introduced in detail,and simulations is performed to show the correctness of the method.The proposed method is simple and easy to be implemented,and it can be applied in the integrated avionic systems.
作者
詹鹏
ZHAN Peng(Southwest China Institute of Electronic Technology,Chengdu 610036,China)
出处
《电讯技术》
北大核心
2019年第5期526-531,共6页
Telecommunication Engineering
关键词
综合化航空电子系统
光纤通道
确定性传输
时间触发
时间调度
integrated avionics system
fibre channel
deterministic transmission
time trigger
time scheduling
