| Industry is the national pillar industry,after a long period of promotion and development,many factories in China have a large number of digital equipment,digital applications,and for these equipment and applications derived from the industrial big data processing,the original system architecture has poor schedulability and low resource utilization efficiency.This paper focuses on the data transmission and computing problem of cloud edge in industrial scenarios,based on SDN and virtualization technology,using OpenFlow flow tables to control data flow,realize the side transfer and calculation of tasks on the cloud edge system,and use a series of strategies to optimize the execution efficiency of industrial data processing and calculation tasks,and provide this capability to the outside world in the form of a platform.The main work of this article is as follows:1.The cloud edge system in the industrial scenario is modeled with a tree structure,and the task response delay,data transmission volume,and task start delay of data processing in the industrial scenario are proposed,and the optimization goals of three dimensions are proposed.2.Designed a programmable virtual network architecture for the industrial Internet.Aiming at the optimization of flow table scale and efficiency,the flow table aggregation method of route aggregation and the flow table matching method of L3/L4 secondary matching are proposed.In view of the enhancement of the programmable control characteristics of data flow,a centralized IP address management algorithm is proposed.Aiming at the optimization of resource use efficiency of cloud edge system,this paper proposes a strategy for deploying the container set of computing tasks on the low-load path of cloud edge system.3.The design realizes the various modules in the programmable virtual network platform,completes the design and construction of the basic components of the platform,realizes the functions of network topology extraction,data flow control of the calculation task,and IP address management of the virtual layer in the flow table management module,and realizes the function of task container set deployment and task container network automation configuration in the container management module.4.The front-end system for the programmable virtual network platform of the industrial Internet is built,which realizes the one-click issuance of the computing task,the visual preview of the equipment topology and transmission status,and the real-time display of the equipment operation status.At the same time,as an application demonstration,the system was deployed in the factory area of Jiangsu Nanjing Iron and Steel Group,and the advantages of the platform in terms of resource use efficiency and architecture were verified through functional testing and performance testing. |
