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Data synchronization method of remote control channel

A data synchronization and telecontrol channel technology, applied to electrical components, transmission systems, etc., can solve the problems of repeated and missing information transmission

Inactive Publication Date: 2014-04-23
XJ ELECTRIC +2
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Problems solved by technology

[0003] The purpose of the present invention is to provide a telecontrol channel data synchronization method to solve the problem of repeated transmission and missing information in the current substation when switching between two channels

Method used

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  • Data synchronization method of remote control channel
  • Data synchronization method of remote control channel
  • Data synchronization method of remote control channel

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Embodiment Construction

[0031] The specific embodiments of the present invention will be further described below in conjunction with the drawings.

[0032] The process of the remote control channel data synchronization method is as follows figure 1 As shown, the specific steps are as follows:

[0033] First, divide the dual channels in the power system substation into a synchronized channel and a synchronized channel. The synchronized channel refers to the channel that sends synchronized data, and the synchronized channel refers to the channel that receives synchronized data. The deployment of synchronized channels and synchronized channels is as figure 2 As shown, it can be divided into a single and dual machine mode with one master and one backup, and a single and dual machine mode with one master and multiple backups. If the single and dual machine mode of one master and one standby is adopted, channel A is used as the synchronization channel to synchronize data to the synchronized channel B. If the ...

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Abstract

The invention relates to a data synchronization method of a remote control channel. The method comprises the following steps: establishing a buffer area in the channel; simultaneously sending data to a synchronizing channel and a synchronized channel; using the synchronizing channel to send a received receipt to a scheduler to wait for an acknowledgement frame of scheduling; enabling the synchronized channel to perform dividing and checking on information to be sent at the end of the synchronized channel by adopting a fuzzy calculation method according to a time window; and deleting the information sent by the synchronizing channel. According to the method disclosed by the invention, effective and accurate dividing and checking can be performed on the information to be sent, so that the double channels can prevent missing sending and resending of the information after switching of the channels.

Description

Technical field [0001] The invention relates to a data synchronization method of a remote control channel, belonging to the field of power system remote control communication. Background technique [0002] The main problem of power system telecontrol communication equipment during dual-machine switching is that the analog quantity, switching value, and action information of the operation monitoring of the substation equipment are remotely transmitted to the dispatching master station. If dual-machine or dual-channel switching occurs, the switch is The main channel, the analog quantity, status quantity, and action information sent to the dispatching master station generally has retransmission and missing information. The missing of the status information will cause the status monitored by the dispatch master station to be inconsistent with the actual equipment status. If the status information is retransmitted, it will cause the status information to undergo displacement actions, ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/08
Inventor 慕宗君方伟戚振伟马国强杨恢宏李江林牛津文张巧霞李贞赵生传陈志勇宋海峰吴石书
Owner XJ ELECTRIC
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