Method for optimizing data transmission latency in communication of intelligent power grid

A smart grid communication and data transmission technology, applied in digital transmission systems, transmission systems, data exchange networks, etc., can solve the problem of high real-time requirements and achieve the effect of improving performance

Inactive Publication Date: 2017-03-15
KUNMING UNIV OF SCI & TECH
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  • Application Information

AI Technical Summary

Problems solved by technology

Especially for time-delay-sensitive data, the worse the situation is, the higher and stricter the real-time requirements of key information will be. The fast and real-time transmission of various data in the smart grid communication network affects the whole body. Unprecedented challenges to the construction of smart grid communication network

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  • Method for optimizing data transmission latency in communication of intelligent power grid
  • Method for optimizing data transmission latency in communication of intelligent power grid
  • Method for optimizing data transmission latency in communication of intelligent power grid

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Embodiment 1

[0045] Embodiment 1: as Figure 1-9 Shown, a kind of optimization method of the data transmission time delay of smart grid communication, it is characterized in that: comprise the steps:

[0046]Step 01) At a certain switching node, first start to calculate the virtual time stamp, that is, calculate the virtual time stamp of the data packets of the six types of data that arrive first, sort them at the same time, and then find out the minimum virtual time stamp from the six types of data packets signed packets, the virtual time stamp of the selected scheduled packet is assumed to be In the formula, it represents the virtual time stamp of the jth data packet in the i-th type of data;

[0047] Step 02) Make reasonable use of the previous calculation results. When the next data packet is scheduled, the first step is to put the (j+1)th data packet in the i-th type of data in the scheduling candidate, and the second step is to use the first The virtual time stamp of the (j+1)th d...

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Abstract

The invention discloses a method for optimizing the data transmission latency in communication of an intelligent power grid, belonging to the field of data transmission of intelligent power grids. Different types of data can be optimized by introduction of corresponding different virtual latencies; in combination with the arrival time and the corresponding deadline of a data packet thereof, a virtual timestamp is obtained; the scheduling sequence thereof is dynamically adjusted; the more sensitive the latency is, the shorter the virtual latency thereof is; even the practical timestamp of the data packet thereof is not changed, the virtual timestamp is changed by the virtual latency; therefore, on one hand, a data packet having the sensitive latency is superior to a data packet having the non-sensitive latency; on the other hand, due to introduction of the virtual latency, the Domino phenomenon is also solved; and thus, on the premise that the latency non-sensitive data is not influenced, the latency performance of the latency sensitive data is improved.

Description

technical field [0001] The invention belongs to the field of smart grid data transmission, and specifically relates to a method for optimizing data transmission time delay of smart grid communication, which is beneficial to performance improvement of data transmission in smart grid communication. Background technique [0002] As the next generation grid technology, the smart grid will organically combine information technology, automatic control, sensor technology and smart power equipment. It makes the power grid more secure, reliable, efficient and intelligent by providing two-way interactive, highly integrated services and models. However, for the smart grid communication network, on the one hand, it bears the important task of supporting the power grid in the next few decades. With the introduction of more power equipment and more upgrades of the power system in the future, it will be greatly reduced in terms of scale and operational complexity. Faced with many challeng...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/875H04L12/863H04L47/56
CPCH04L47/562H04L47/564H04L47/6235
Inventor 唐菁敏
Owner KUNMING UNIV OF SCI & TECH
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