基于计算机网络技术的嵌入式实时操作系统设计  

Design of embedded real⁃time operating system based on computer network technology

作　　者：张科 王娟 张乾 ZHANG Ke;WANG Juan;ZHANG Qian(School of Data Science and Information Engineering,Guizhou Minzu University,Guiyang 550025,China;Academic Affairs Office,Guizhou Minzu University,Guiyang 550025,China)

机构地区：[1]贵州民族大学数据科学与信息工程学院,贵州贵阳550025 [2]贵州民族大学教务处,贵州贵阳550025

出　　处：《现代电子技术》2021年第16期105-109,共5页Modern Electronics Technique

基　　金：贵州省自然科学基金项目(黔科合J字[2014]2094号);贵州省本科教学工程(教学内容与课程体系改革)项目(黔财教[2015](180号));贵州省教育厅青年科技人才成长项目(黔教合KY字[2017]136)。

摘　　要：传统的嵌入式实时操作系统中的缓存机制在执行时会出现许多报文块会过度消耗系统CPU使用寿命。为此,文中提出基于计算机网络技术的嵌入式实时操作系统设计。在硬件设计上,设计微内核体系结构,保留基本服务在系统内核中,将其他功能移出到用户空间,设计以太网控制器,使系统在不同的网络环境下实现各种功能。在软件设计上,优化嵌入式网络通信协议,针对不同的报文采取不同的处理方式,同时处理产生的实时信号,将信号与报文结合在一起,预测系统下一步操作,达到实时操作的目的。实验结果表明,设计的基于计算机网络技术的嵌入式实时操作系统在执行任务时内存空间占比小,数据开销小,系统CPU使用寿命得到增长。The cache mechanism in the traditional embedded real⁃time operating system has many message blocks during execution,which may excessively consume the service life of the system CPU.Therefore,a design of the embedded real⁃time operating system based on computer network technology is proposed.In the hardware design,the micro⁃kernel architecture is designed to keep the basic services in the system kernel,but move other functions out of the user space;the Ethernet controller is designed so that the system can realize various functions in different network environments.In the software design,the embedded network communication protocol is optimized,different processing modes are adopted for different messages,and the generated real⁃time signals are processed at the same time.The signal and the message are combined to predict the next operation of the system,and achieve the purpose of real⁃time operation.The experimental results show that the designed embedded real⁃time operating system based on computer network technology takes up a small proportion of memory space when it performs the operation,and has low data overhead.Therefore,the service life of the system CPU is increased.

关 键 词：实时操作系统 计算机网络技术 系统设计 以太网控制器 缓存机制 报文处理 信号处理 

分 类 号：TN915-34[电子电信—通信与信息系统] TP316.2[电子电信—信息与通信工程]