摘要
一般而言,直升机工程模拟器属于软实时系统。因此,为其选择低成本的通信平台成为可能。在理论分析和试验研究的基础上,本文介绍了一种价格低廉的基于四端口以太网卡的通信平台在模拟器中的有效应用。试验结果表明,该模拟器的帧周期满足了国家某重点型号的设计要求。为了进一步降低以太网平台的传输时延从而改善模拟器的性能,本文还首次提出了基于MAC地址的实时传输协议。
Generally, Helicopter engineering simulators belongs to soft real-time systems. Therefore, it is possible to select a Low cost communication platform for it. On the basis of theoretical analysis and experimental study, the paper presents a cheap communication platform based four-port Ethernet card effectively applied in the simulator. The experimental results show that the frame periodicity of the simulator satisfies the design request of some key model of the country. In order to further strengthen the real-time performance of platform to improve the performance of the simulator, the paper firstly presents a MAC address-based RTFP.
出处
《微计算机信息》
北大核心
2006年第01S期235-237,35,共4页
Control & Automation
基金
高等学校博士学科点科研基金(2000000603)资助
