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Method and device for synchronically acquiring terminal data of powder distribution network

A data synchronization and acquisition terminal technology, applied in the direction of synchronization signal speed/phase control, etc., can solve problems such as data synchronization cannot be realized, and achieve the effects of ensuring simultaneity and rapidity, realizing management, and ensuring accuracy

Inactive Publication Date: 2012-03-28
AEROSPACE SCI & IND SHENZHEN GROUP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a fast and accurate method and device for data synchronization of distribution network collection terminals in view of the defect that the existing technology cannot realize the synchronization of data in different collection units

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  • Method and device for synchronically acquiring terminal data of powder distribution network
  • Method and device for synchronically acquiring terminal data of powder distribution network
  • Method and device for synchronically acquiring terminal data of powder distribution network

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Embodiment Construction

[0046] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0047] It should be noted that see figure 2 , figure 2 is a schematic diagram of the distribution network acquisition terminal of the present invention, such as figure 2 As shown, the terminal includes a main control unit 23 and a plurality of acquisition units connected to the main control unit 23 through a bus, such as an acquisition unit 211 for collecting voltage 1, an acquisition unit 21n for collecting voltage n, and an acquisition unit 21 for collecting current 1 Acquisition unit 221 and acquisition unit 22m for collecting current m, etc. In the present invention, both n and m are natur...

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Abstract

The invention discloses a method and a device for synchronically acquiring terminal data of a powder distribution network. The method comprises the following steps of: A, periodically transmitting synchronous command frames carrying current time and synchronous sequence numbers to acquisition units through a bus by a main control unit; B, judging whether the synchronous command frames are synchronous sampling command frames or not, if SO, the step C1 is carried out, and if NO, the step C2 is carried out; C1, recording current sampling point numbers and current synchronous sequence numbers, setting a synchronous data computing mark so as to transmit telemetering vectors to the main control unit, and carrying out the step D; C2, setting a local clock of a sampling unit, and ending the step; and D, sequentially storing the telemetering vectors according to the corresponding synchronous sequence number, and setting corresponding data receiving success marks. In the invention, the main control unit transmits the synchronous command frames to the acquisition units through the bus, the acquisition units response to the synchronous command frames through the data receiving success marks, so that the management to the telemetering vectors can be realized, the synchroneity and the rapidity of the response of the acquisition units to the synchronous command frames can be ensured, and simultaneously, the accuracy of the synchronous command frames is ensured.

Description

technical field [0001] The invention relates to the field of power distribution automation terminals, in particular to a method and device for data synchronization of distribution network collection terminals. Background technique [0002] In the terminal application of distribution network automation, the voltage and current that are required to be collected for certain application functions are collected synchronously, such as loop power calculation, etc., so that phase comparisons and calculations can be performed. Generally, for The monitoring terminal with multiple loops in the power distribution network includes both centralized and distributed structures. The monitoring terminal includes ring network cabinets, switching stations, and cable branch boxes. see figure 1 , figure 1 is a schematic diagram of a distribution network acquisition terminal in the prior art, such as figure 1 As shown, the terminal includes an acquisition unit 11, an acquisition processor 12 ...

Claims

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Application Information

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IPC IPC(8): H04L7/08
Inventor 赖晓明
Owner AEROSPACE SCI & IND SHENZHEN GROUP
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