Resource allocation method in time-sensitive network

A time-sensitive, resource allocation technology, applied in the direction of data exchange network, digital transmission system, electrical components, etc., can solve the problems of inability to get real-time guarantee, network stability decline, network service quality difficult to guarantee, etc., to minimize jitter , reduce delay, ensure the effect of stability

Active Publication Date: 2020-09-04
YANSHAN UNIV
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  • Application Information

AI Technical Summary

Problems solved by technology

AVB traffic that is also important in industrial sites, such as key data for image recognition, cannot be guaranteed in real time
Moreover, the method of single-path traffic transmission makes too much traffic

Method used

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  • Resource allocation method in time-sensitive network
  • Resource allocation method in time-sensitive network
  • Resource allocation method in time-sensitive network

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Embodiment Construction

[0044] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

[0045] The invention discloses a resource allocation method in a time-sensitive network. The main purpose is to minimize the jitter of AVB traffic on the premise of ensuring the delay of TT traffic, ensure the transmission effect of audio and video, and reduce the delay of AVB traffic to a certain extent. When , it solves the problem of multi-path dynamic distribution of mixed traffic at the source node. Such as figure 1 As shown, it is a flow chart of the resource allocation method in the present invention, which can be applied to figure 2 As shown in the resource allocation model with r paths, the steps included in the method will be described in detail below.

[0046] Step 1, the network topology is modeled as a directed graph G(V,E). Among them, V≡(ES∪SW) represents the set of nodes in the topology, including the end system ES and the swit...

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Abstract

The invention relates to a resource allocation method in a time-sensitive network, which comprises the following steps of: 1, modeling a network topology into a directed graph G (V, E); 2, eliminatingunmatched routes; 3, detecting the traffic forwarding rate of each node of each path; 4, formulating an objective function and an output function, wherein the objective function is the minimized jitter of AVB traffic, and the output function is the traffic quantity allocated to each path; 5, formulating constraint conditions according to the target function in the step 4; 6, searching for a pathwith the largest hop count, and removing the path in a feasible solution, and remaining p-1 paths at the moment; and 7, recording a solution generated by each round of calculation in the dynamic change as a sample space. On the premise of ensuring TT traffic delay, the jitter of AVB traffic is minimized, the audio and video transmission effect is ensured, the AVB traffic delay is reduced to a certain extent, and the multi-path dynamic allocation problem of mixed traffic at a source node is solved.

Description

technical field [0001] The invention relates to a resource allocation method in a time-sensitive network, and belongs to the technical field of time-sensitive network technology of the Industrial Internet of Things. Background technique [0002] The emergence of network collaboration technology has opened up new manufacturing scenarios that integrate modern technologies to increase production efficiency, improve product quality, and reduce resource consumption. The Industrial Internet of Things is a specific implementation of network collaboration technology. It uses various high-precision sensors to monitor equipment status and on-site conditions in real time, and finally realizes intelligentization of traditional industries. In this context, with the increasing requirements for transmission of time-sensitive traffic (TT traffic) and audio-video traffic (AVB traffic) in industrial sites, the IEEE802.1 Time-Sensitive Networking (TSN) task group has developed a time-sensitive...

Claims

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Application Information

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IPC IPC(8): H04L12/853H04L12/851H04L12/927H04L47/2416H04L47/80
CPCH04L47/2416H04L47/2433H04L47/2408H04L47/801H04L47/805
Inventor 袁亚洲曹旭孙富韬陈彩莲关新平杨博
Owner YANSHAN UNIV
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