IP layer data packet scheduling algorithm oriented to multi-service coexistence and deterministic network requirements in industrial Internet of Things

A technology for industrial IoT and network requirements, applied in the field of industrial IoT data real-time transmission and multi-network integration, it can solve the problems of reducing the network packet loss rate and the inability to guarantee the real-time performance of data packets.

Active Publication Date: 2021-05-18
DALIAN UNIV OF TECH
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This method considers the priority and transmission time of data packets at the same time, and obtains the partial switching conditions of the hybrid switching system through the calculation formula of the maximum transmission delay of data packets of each priority, and uses the hybrid switching system model to analyze the packet

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  • IP layer data packet scheduling algorithm oriented to multi-service coexistence and deterministic network requirements in industrial Internet of Things
  • IP layer data packet scheduling algorithm oriented to multi-service coexistence and deterministic network requirements in industrial Internet of Things
  • IP layer data packet scheduling algorithm oriented to multi-service coexistence and deterministic network requirements in industrial Internet of Things

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[0036]In order to make the objects, technical solutions, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0037]Seefigure 2The applicable network topology map of a data packet scheduled algorithm based on data priority, transmission time, and maximum transmission, which can operate on the network terminal and forwarding node with the transmission packet requirements. The present invention uniformly dispatched a data packet from different types of networks in the IP layer to achieve multi-network fusion. At the same time, the present invention uses a mixed switch system model to analyze the data packet schedule process, while ensuring the quality of the network of various types of data, overcoming the high-demand-delayed data encapsulation of the current industrial Internet of Things, does not guarantee The problem also reduces the packet loss rate of the network.

[0038]Seefigure 1 , In...

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Abstract

The invention discloses an IP layer data packet scheduling algorithm oriented to multi-service coexistence and deterministic network requirements in an industrial internet of things, and belongs to the technical field of real-time data transmission and multi-network convergence of the industrial internet of things. An existing data packet scheduling algorithm lacks analysis of the coexistence problem of continuous periodic data and discrete control data in the industrial Internet of Things. According to the algorithm, the priorities and the transmission delays of data packets are considered at the same time, partial switching conditions of a hybrid switching system are obtained through a calculation formula of the maximum transmission delays of the data packets of all the priorities, a hybrid switching system model is used for analyzing the data packet scheduling process, and therefore a data packet scheduling algorithm of the IP layer is designed. By using the algorithm provided by the invention, data packets from different types of networks can be scheduled, multi-network fusion is realized, meanwhile, the real-time requirement of the data packets in the industrial Internet of Things can be met, and the packet loss rate is reduced.

Description

Technical field[0001]The present invention belongs to the technical field of real-time transmission and multi-network fusion of industrial Internet of Things, and is relate to a scheduling algorithm for packet scheduling based on packet priority, transmission time, and hybrid switching system model in the IP layer.Background technique[0002]With the development of wireless networks and 5G technology, multi-network integration and multi-service coexistence have become a problem that the current industrial network research must overcome. At the same time, with the proposal of the deterministic network application, how to ensure that each packet can be sent in time, and it has become a key in time in which each packet can be sent in time. In order to meet the low-delay demand for industrial networking data package end, IEEE 802.1 Working Group issued a series of time-sensitive network (TSN) related standards, secured by clock synchronization, data stream measurement strategy, etc. to en...

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Application Information

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IPC IPC(8): H04L29/08H04L12/865H04L47/6275
CPCH04L67/12H04L47/6275
Inventor 丁男王艳红吴迪孙希明
Owner DALIAN UNIV OF TECH
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