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Sampling value synchronization interpolation algorithm with data delay jitter or loss compatible

A technology of delay jitter and synchronous interpolation, used in electrical digital data processing, special data processing applications, computing, etc.

Active Publication Date: 2013-09-04
SUZHOU POWER SUPPLY OF JIANGSU ELECTRIC POWER +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] The purpose of the present invention is to provide a sampling value synchronous interpolation algorithm that is compatible with data delay jitter or loss, and solves the consistency of sampling points so as to realize high-precision synchronization of sampling values

Method used

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Examples

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Embodiment 1

[0031] Embodiment 1: A sampling value synchronization interpolation algorithm compatible with data delay jitter or loss is applied to a substation protection and monitoring system of distributed sampling value networking. The substation protection and measurement and control system includes a sampling unit (such as a transformer) for sampling following the frequency of the power grid, a merging unit that is connected to the sampling device to integrate the sampled value for the first time and transmit the sampled value after the initial integration, and to connect to the merging unit A functional unit that re-integrates the sampled value after the initial integration and realizes the corresponding function according to the sampled value after the re-integration.

[0032] The above-mentioned synchronization interpolation algorithm for sampling values ​​compatible with data delay, jitter or loss is applied to two scenarios, which are:

[0033] (1) When the merging unit receives the s...

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PUM

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Abstract

The invention relates to a sampling value synchronization interpolation algorithm with data delay jitter or loss compatible. The sampling value synchronization interpolation algorithm is applied to a protecting, measuring and controlling system which comprises a sampling unit, a merging unit and a function unit. The sampling value synchronization interpolation algorithm can be applied to two scenes: (1) when the merging unit receives a sampling value sent from the sampling unit and the sampling value is initially integrated, the merging unit conducts primary interpolation replenishing and primary interpolation calculating on the sampling value, and the sampling value after being initially integrated is established; (2) when the function unit receives the sampling value sent from the merging unit after initial integration and the sampling value is integrated once again, the function unit conducts secondary interpolation replenishing and secondary interpolation calculating on the sampling value, and the sampling value after being integrated once again is established. According to the sampling value synchronization interpolation algorithm, the fact that the sampling unit and the merging unit, and the merging unit and the function unit choose sampling points according to needs in the protecting, measuring and controlling system can be achieved, when data delay jitter or loss occurs, supplement and calibration can be used, and high efficiency and flexibility are achieved.

Description

Technical field [0001] The invention relates to a sampling value interpolation method applied to a substation protection and measurement and control system, and specifically relates to an interpolation method that takes into account the time asynchrony or failure of the sampling value caused by message delay or loss. Background technique [0002] Sampling value interpolation calculation is an important technology to solve the inconsistencies in the number of sampling values ​​among sampling equipment, transmission integration equipment, and functional devices. It can be used in substation protection and measurement and control systems for transformers (sampling equipment) and different sampling points in the system. In the principle design of various functional devices, it provides support for application integration schemes with different requirements for the number of sampling points. [0003] The existing protection and measurement and control systems mainly include: [0004] 1. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F19/00
Inventor 赵家庆蒋永平苏大威李汇群徐春雷李澄王晓东李佩珏杨洪周宇植陈颢
Owner SUZHOU POWER SUPPLY OF JIANGSU ELECTRIC POWER
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