基于RTX的复杂虚拟试验分层实时网络环境研究  

Research on a Hierarchical Real-time Networks in Complex Virtual Testing Based on RTX

作　　者：吴凡[1] 杜承烈[1] 尤涛[1] 

机构地区：[1]西北工业大学计算机学院,陕西西安710072

出　　处：《计算机测量与控制》2009年第6期1149-1152,共4页Computer Measurement &Control

摘　　要：复杂实时仿真系统中不同层次对实时性、可靠性要求各不相同;网络和操作系统是该类系统环境的重要组成部分;针对硬件在回路试验的实时需求,提出了基于RTX下的反射内存网的半实物接入网络,构建了基于RT-TCP/IP的虚拟试验局域网;其操作系统层面,设计为弱实时任务在Windows内核上运行,而强实时任务分布在RTX内核之上;文中对各层面的实时性进行了测试,分析了层面间的实时性约束;结合某飞行试验系统的虚拟试验,给出了具体的设计方案,满足了应用中不同实时性的要求。Different layers in complex real-time testing system have different requirements on real-time and reliability. The networks and operation systems are the major components of such frames. The operation system is designed to run processes with weak real- time within the kernel of Windows and the processes with strong real-time within kernel of RTX. A virtual testing Ethernet based on RT -TCP/IP is built. A semi-entity network based on RTX reflective memory network is realized to meet the real-time requirement in loop testing. The real-time performance of each layer is tested and the real- time constraints of them are analyzed. Finally a specific proposal is given for a dedicated testing system as an example, which fit to the different real-time requirements in actual application.

关 键 词：复杂虚拟试验 实时扩展 实时以太网 反射内存网 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]