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Data sending method

A data transmission method and data packet technology are applied in the field of data transmission and can solve the problems of low stability and poor continuity of data transmission.

Active Publication Date: 2013-01-09
ELECTRIC POWER RES INST OF GUANGDONG POWER GRID
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Based on this, it is necessary to provide a data transmission method for the problems of low stability and poor continuity of data transmission caused by the above-mentioned existing transmission technology

Method used

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Embodiment Construction

[0015] The specific implementation manner of the data sending method of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0016] figure 2 A flow chart of a data sending method in an embodiment is shown, which mainly includes the following steps:

[0017] S100, read the real-time data of the data source and write it into the memory-mapped file;

[0018] S200. Send the real-time data in the memory-mapped file to the receiving end, and cache the real-time data in the memory-mapped file when the network communication is interrupted;

[0019] S300. After the network resumes communication, read the buffered real-time data and send it to the receiving end.

[0020] In order to clarify the technical solution of the present invention, a preferred embodiment of the realization process of the present invention is explained below.

[0021] For the process of step S100, specifically, the real-time data packet of the data source is ...

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Abstract

The invention provides a data sending method. The data sending method comprises the following steps of: reading real-time data of a data source and writing the real-time data into a memory mapping file; sending the real-time data in the memory mapping file to a receiving end, and when network communication is interrupted, caching the real-time data into the memory mapping file; and when the network communication is recovered, reading the cached real-time data and sending the real-time data to the receiving end. By adoption of the data sending method, the continuity of data transmission can be ensured under the condition of network instability, so an information system operates steadily, safely and efficiently.

Description

technical field [0001] The invention relates to data transmission technology, in particular to a data sending method. Background technique [0002] The security isolation gatekeeper is a network security device that cuts off the link layer connection between the networks on the circuit by special hardware with various control functions, and can carry out safe and moderate application data exchange between the networks. [0003] For power secondary systems with high safety requirements, business processing systems and smart devices based on computer and network technology are used to monitor and control the power grid and the production and operation process of power plants. Including power data acquisition and monitoring system, energy management system, substation automation system, converter station computer monitoring system, power plant computer monitoring system, distribution automation system, microcomputer relay protection and safety automatic device, wide area phasor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/24
Inventor 陈世和张曦罗嘉万文军邵艳军
Owner ELECTRIC POWER RES INST OF GUANGDONG POWER GRID
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