分布并行实时系统的互连技术研究

Research of Interconnection Technology for Distributed Real-Time Parallel System

分布并行实时系统严格划分为硬实时和软实时两类系统。针对直升机工程模拟器和航空电子综合系统这两种实时性不同的系统的网络互连,分别给出了解决方案。特别是对硬实时系统,提出了基于多端口静态存储器和多端口收发器的并行内存实时网,最大优点是没有高层通信协议,且使所有的分系统能并行与中心节点交换数据,能最大限度地降低总传输延时。

Distributed parallel real-time system is strictly divided into hard and soft real-time systems.Network interconnection is the supporting technology of them.This paper introduces different solution schemes aimed at the network interconnecion of two different real-time performance systems （helicopter engineering simulator and avionics integration system）.Especially hard real-time system,it firstly puts forword parallel RAM real-time network based on multi-port SRAM and multi-port transeiver whose best characteristic is that it not only has not high-layer protocol but also all the sub-systems can exchange datas concurrently with central node by it. Total transfer delay can be minimized by the network.