Line length adaptive time trigger scheduling method and device thereof

A time-triggered, scheduling method technology, applied in the field of Ethernet, can solve problems such as failure of TT scheduling strategy, damage to real-time performance of the network system, uncertainty of data packet transmission time, etc., and achieve the effect of flexible network deployment

Active Publication Date: 2020-07-28
TSINGHUA UNIV
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Problems solved by technology

However, in the actual deployment of the network, the distance between network nodes is inevitably different, and the types of network transmission media used are also different. This will undoubtedly bring great uncertainty in the transmission time of data packets on the network line, and may cause Causes the calculated TT scheduling strategy to fail, destroying the real-time performance of the entire network system

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  • Line length adaptive time trigger scheduling method and device thereof
  • Line length adaptive time trigger scheduling method and device thereof
  • Line length adaptive time trigger scheduling method and device thereof

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Embodiment Construction

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0034] figure 1 It is a flowchart of a line length adaptive time-triggered scheduling method according to an embodiment of the present invention; as figure 1 As shown, the line length adaptive time-triggered scheduling method includes:

[0035] S110, for each network node, obtain the line transmission delay between the network node and its adjacent network nodes, wherein the total line delay between any two adjacent network nodes in the deployed network is le...

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Abstract

The invention discloses a line length self-adaptive time trigger scheduling method and a device thereof. The method comprises the steps that for each network node, line transmission delay between thenetwork node and the adjacent network node is obtained, and the total line delay between any two adjacent network nodes in a deployed network is smaller than a preset line transmission delay thresholdvalue; a time triggering scheduling strategy is determined according to the acquired line transmission delay between any two adjacent network nodes; and the time-triggered scheduling strategy is sentto a switch port of the network node so as to schedule data packets between the network node and the adjacent network node.

Description

technical field [0001] The invention relates to the field of Ethernet, in particular to a line length adaptive time trigger scheduling method and device. Background technique [0002] With the continuous development of network technology, more and more fields start to use the network. In the fields of aviation, railway transportation, industrial control, etc., it is required that data information can reach the destination node according to the specified time, otherwise it may cause disastrous consequences such as loss of control. Traditional Ethernet uses carrier sense multiple access technology with collision detection, which is essentially a contention-based media access control protocol, which cannot meet the requirements of low-latency, low-jitter, and highly reliable real-time transmission. Among the many solutions to realize the real-time Ethernet required by the industry, the time-triggered Ethernet technology (Time-triggered Ethernet, referred to as TTEthernet) inve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/407H04L12/26
CPCH04L12/407H04L43/0864
Inventor 万海李宗辉于庆涵赵曦滨陈威行
Owner TSINGHUA UNIV
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