Edge computing node selection method and system in time delay sensitive network

An edge computing, delay-sensitive technology, applied in the transmission system, digital transmission system, data exchange network, etc., can solve the problems of not taking into account the delay of control services, high calculation offload failure rate, QoC cannot be guaranteed, etc. Achieve the effect of guaranteeing the quality control requirements

Active Publication Date: 2020-03-17
COMP NETWORK INFORMATION CENT CHINESE ACADEMY OF SCI
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AI Technical Summary

Problems solved by technology

However, when terminal nodes gather to an edge computing node at a certain time and new services with higher service priority appear, the delay-first node selection scheme is likely to overload the task of an edge computing node, which will bring a very serious problem. The high fail

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  • Edge computing node selection method and system in time delay sensitive network
  • Edge computing node selection method and system in time delay sensitive network
  • Edge computing node selection method and system in time delay sensitive network

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Embodiment Construction

[0022] The present invention will be described in more detail below in conjunction with the accompanying drawings and embodiments.

[0023] Embodiments of the present invention provide a method and system for selecting an edge computing node with control quality assurance in a delay-sensitive network.

[0024] figure 1 It is a network architecture diagram of converged edge computing in a delay-sensitive network applied in the embodiment of the present invention. like figure 1 As shown in , assuming that the number of control services in the network is N nodes, the amount of information that needs to be processed by the nth service is C n , the control delay requires a threshold of T n , where n=1,2,...,N. The total number of edge computing nodes is M, and the computing power of the mth edge node can use its CPU processing frequency f m , m=1, 2,..., M to represent. Its specific implementation steps 1-step 4:

[0025] Step 1: The software-defined network controller colle...

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Abstract

The invention provides an edge computing node selection method and system in a time delay sensitive network, and the method comprises the steps: firstly, setting service priorities of time delay sensitive businesses based on a control quality requirement; secondly, in an initial edge calculation node selection stage, according to the priority sequence, enabling a software-defined network controller to select edge computing nodes according to a time delay priority principle on the basis of guaranteeing each service QoC based on the acquired control type service quality requirements, network topology and idle resource conditions of the edge computing nodes; finally, during the process of unloading calculation tasks, a calculation task enabling a software-defined network controller to pre-estimate current control-type business QoC based on the current network topology information sensed in real time and idle resource state of the edge nodes. When AoC of certain business is lower than expected threshold, new edge calculation nodes are selected instantly. The business are guided to new edge computing nodes through routing reconfiguration, thereby practically guaranteeing the QoC ofthe control-type business.

Description

technical field [0001] The invention relates to an edge computing node selection method in the industrial Internet, in particular to a method and system for selecting an edge computing node with control quality assurance in a delay-sensitive network. Background technique [0002] Time sensitive network (TSN, time sensitive network) technology has become a key network transmission technology in the industrial Internet because of its extremely high transmission delay guarantee. In addition, edge computing technology can greatly reduce the end-to-end closed-loop control delay by processing data close to the industrial site. Therefore, the delay-sensitive network integrated with edge computing has become a research hotspot in the field of industrial Internet in recent years. [0003] Edge computing nodes deployed in delay-sensitive networks mainly include nodes such as programmable logic controllers (PLCs), delay-sensitive gateways (TSN bridges) and specially deployed edge comp...

Claims

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Application Information

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IPC IPC(8): H04L29/08H04L12/725H04L12/24
CPCH04L67/1008H04L67/1023H04L45/302H04L41/12
Inventor 周旭覃毅芳胡亚辉
Owner COMP NETWORK INFORMATION CENT CHINESE ACADEMY OF SCI
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