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Industrial heterogeneous network scheduling method oriented to TSN and non-TSN interconnection

An industrial heterogeneous network, industrial network technology, applied in the field of industrial heterogeneous network scheduling, can solve the problem that the TSN scheduling mechanism does not provide a solution

Active Publication Date: 2020-08-28
CHONGQING UNIV OF POSTS & TELECOMM
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Problems solved by technology

[0004] However, how to implement high-efficiency and high-quality scheduling in heterogeneous networks to ensure low-latency and deterministic transmission of different types of data in the network, the existing TSN scheduling mechanism does not provide a solution

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  • Industrial heterogeneous network scheduling method oriented to TSN and non-TSN interconnection

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specific Embodiment

[0204] Specific embodiment: suppose an industrial heterogeneous network such as Figure 8 As shown, the method of combining heterogeneous network routing and scheduling proposed by this scheme is now used to schedule the traffic in the network. The destination of traffic generator 1 is traffic generator 1, the destination of the camera is the monitor, and the destination of traffic generator 2 is traffic generator 2.

[0205] (1) The user uses the terminal application program to set the delay of each link as d1 = 125us and the priority as 4, d2 = 58ms and the priority as 3, and d3 = 9ms. To facilitate subsequent descriptions, the three links are recorded as L1, L2, and L3 in sequence.

[0206] (2) Data classification

[0207] (3) TSSDN controller according to the second step in the proposed algorithm, L1 belongs to S1{TSN←→TSN}, L2 belongs to S2{TSN←→non-TSN}, L3 belongs to S3{non-TSN←→non-TSN}, each chain The data type of the road is shown in the table below.

[0208] ...

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Abstract

The invention relates to a TSN and non-TSN interconnection oriented industrial heterogeneous network scheduling method, which belongs to the field of industrial Ethernet and comprises the following steps that: in a network deployment stage, a user performs configuration management on a TSSDN controller according to application requirements through a terminal application program; the TSSDN controller performs data classification according to a delay demand; the TSSDN controller carries out scheduling priority management on the data; the TSSDN controller calculates the shortest path and schedules the priorities; the SDN switch performs flow table matching,and judges the congestion condition of the queue; and the feedback adjustment to queue congestion is carried out. According to the method,high-efficiency and high-quality scheduling is carried out in the industrial heterogeneous network with the TSN and the non-TSN interconnected, and low-delay and deterministic transmission of different types of data in the network is guaranteed.

Description

technical field [0001] The invention belongs to the field of industrial Ethernet, and relates to an industrial heterogeneous network dispatching method facing the interconnection of TSN and non-TSN. Background technique [0002] Industrial Ethernet has gained more and more recognition in mission-critical industrial applications and automotive control applications, but with the needs of factory business, especially the current big data and cloud computing entering the field of industrial control, IT and OT integration is required In the context of the Internet, it is necessary not only to ensure the transmission of big data, but also to ensure the real-time and deterministic transmission. At this time, the existing industrial Ethernet protocol is even more powerless. And when there are a large amount of different types of data in the network, how to perform reasonable scheduling and ensure the QoS of data transmission is an urgent problem to be solved. [0003] It is these b...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/24H04L12/833H04L12/875H04L47/31H04L47/56
CPCH04L41/0803H04L41/12H04L47/2458H04L47/56H04L41/0896H04L45/14H04L47/522H04L43/0852H04L41/122H04L41/082H04L43/0876H04L43/20H04L41/0895
Inventor 魏旻向雪琴王平晏先春
Owner CHONGQING UNIV OF POSTS & TELECOMM
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