工业互联网传输延时性分析与研究  

Analysis and research of time delay of transmission for industrial Internet

作　　者：梅雨林 Mei Yulin(School of Electrical and Information Engineering,Anhui University of Technology,Ma’anshan 243002,China;School of Information Engineering and Media,Hefei Technology College,Hefei 230012,China)

机构地区：[1]安徽工业大学电气与信息工程学院,安徽马鞍山243002 [2]合肥职业技术学院信息工程与传媒学院,安徽合肥230012

出　　处：《无线互联科技》2022年第19期146-149,164,共5页Wireless Internet Technology

基　　金：安徽高校质量工程项目—物联网应用技术专业教学团队,项目编号:2021jxtd247;安徽高校质量工程项目—计算机网络技术专业结构调整与专业改造,项目编号:2021zyyh035;安徽高校质量工程项目—计算机网络技术专业教学团队,项目编号:2020jxtd225。

摘　　要：在现代工业互联网中,网络的不确定性以及系统时钟的不同步已成为制约网络控制系统性能进一步提升的主要障碍。为了使基于工业互联网的控制系统能够应用于实时性要求较高的工业控制领域,改善网络传输时延和解决时钟同步就成为了关键问题。文章从工业互联网的典型时延问题出发,提出了几种移动边缘计算与雾计算的延时改善方案,探讨了无线网络下引入移动边缘缓存技术和雾计算的优势,利用计算卸载以及多维资源分配,可以在一定程度上优化时延问题。但在实际生产中,很多任务需要在规定的时间内完成,同时还需要考虑到因终端设备的移动以及功率的变化额外产生的传输时延,故局限性较大,因此算法和卸载策略如何建模依然是未来亟待解决的问题。In modern industrial Internet,the uncertainty of network and the asynchronism of system clock have become the main obstacles to the further improvement of network control system performance.In order to make the network control system based on industrial Internet can be applied to the industrial control field with high real⁃time requirement,how to improve the network transmission delay and solve the clock synchronization problem has become the key problem.We start from the typical time delay problem of the Internet industry,and puts forward the calculation of several kinds of edge of mobile computing and fog delay improvement scheme,then shallow talk about the advantages of introduction of mobile wireless network edge caching technology and fog calculation,Using computational offloading and multi⁃dimensional resource allocation,to a certain extent,optimize the time delay problem.However,in the actual production,many tasks need to be completed within the specified time,and the additional transmission delay caused by the movement of terminal equipment and the change of power need to be considered,so the limitations are relatively large.Therefore,how to model the algorithm and offloading strategy is still a problem to be solved in the future.

关 键 词：工业互联网 延时优化 边缘计算 雾计算 

分 类 号：TP393.09[自动化与计算机技术—计算机应用技术]