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A high-speed socket receiving method and system

A receiving method and socket technology, which is applied in the field of high-speed socket receiving method and system, can solve problems such as low communication efficiency and dependence, and achieve the effects of reducing development workload, stabilizing load, and reducing network load

Active Publication Date: 2021-02-02
CHINA ELECTRIC POWER RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a high-speed socket receiving method and system to solve the technical problem that the existing high-speed socket receiving system relies on the MMS protocol library, resulting in low communication efficiency

Method used

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  • A high-speed socket receiving method and system
  • A high-speed socket receiving method and system

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Embodiment approach

[0042] In order to overcome the problems existing in the prior art, the present invention provides a high-speed socket receiving method and system based on the IEC61850 protocol, including an abstract communication service interface ACSI mapping to a network communication method and an efficient power information system; the content of the present invention It will make up for the limitations of the original IEC61850 protocol mapping processing method and the technical barriers of the MMS protocol library. It can transparently map all service interfaces, reduce bandwidth occupancy and equipment occupancy, and significantly improve the communication efficiency of the station control layer, which is in line with future localized intelligence. The needs of the development trend of the power grid can completely solve the problem that the station control layer communication of intelligent substations is controlled by people, and has extremely important technical value; at the same ti...

Embodiment 1

[0051] see figure 2 As shown, the present invention provides a high-speed socket receiving method, which replaces the traditional mode in which IEC68150 is mapped to MMS, and specifically includes the following steps:

[0052] S1. The server (interval layer automation device) compresses and digitally signs the IEC61850 server model data to obtain the IEC61850 server compression model; the client host invokes the active or passive method of the socket layer Socket to establish a TCP connection with the server Finally, the server first transmits the complete IEC61850 server-side compression model to the client host. The way to transfer the model is to get the file.

[0053] Preferably, the digital signature verification method can adopt the consistency verification method used for smart substation ICD models recorded in CN201510266224.1, or other digital signature methods;

[0054] S2. After the client host receives the IEC61850 server-side compression model, it decompresses ...

Embodiment 2

[0071] see figure 2 As shown, the present invention also provides a high-speed socket receiving system, comprising:

[0072]The server is used to compress and digitally sign the IEC61850 server model data to obtain the IEC61850 server compression model; after the client host calls the active or passive method of the socket layer Socket to establish a TCP connection with the server, the server first Deliver the complete IEC61850 server compression model to the client host;

[0073] The client host is used to receive the compressed model of the IEC61850 server and perform decompression and signature verification;

[0074] The socket adaptation layer socket.io-adapte is used to allocate a ring buffer of a corresponding size in RAM according to the size of the IEC61850 server model decompressed by the client host using the Adapter method.

[0075] In the present invention, the server is also used to respond to the subscription command issued by the client host, and upload the s...

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Abstract

The invention discloses a high-speed socket receiving method and system. The system includes: S1, the server compresses and digitally signs the IEC61850 server model data, and transmits it to the client host before data interaction; S2, The client host performs decompression and digital signature verification; S3, establishes a TCP connection, and the socket adaptation layer uses the Adapter method to allocate a ring buffer of a corresponding size in RAM according to the size of the decompressed IEC61850 server model; S4, the client host Send the subscription command to the server, and the server uploads the subscription data to the socket adaptation layer according to the selected communication protocol for the subscription command; the socket adaptation layer performs digital signature authentication on the subscription data, and discards the data packet if the authentication fails And give an alarm. After the authentication is passed, determine which ring buffer the subscription data belongs to, and update the subscription data to the corresponding ring buffer. The invention effectively solves the problem that the existing high-speed socket receiving system depends on the MMS protocol library, resulting in low communication efficiency.

Description

technical field [0001] The invention belongs to the field of power system data communication, and in particular relates to a high-speed socket receiving method and system. Background technique [0002] The MMS (manufacturing message specification) standard is a set of international message specifications proposed by ISOTC184 to solve real-time data exchange and monitoring information between smart devices in a heterogeneous network environment. The MMS standard adopts the object-oriented modeling method to establish the information model of the actual equipment, and at the same time provides a highly versatile interactive service, realizing the interoperability between different manufacturing equipment in the network environment, and is widely used in automobile manufacturing, robots , aviation, chemical industry, electric power and other industrial automation fields. [0003] The MMS Lite protocol library is provided in the form of ANSI C source code. It has the basic MMS ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L9/32H04L29/06
CPCH04L9/3247H04L69/162
Inventor 徐歆姚志强任辉任浩樊陈杨青姜玉磊
Owner CHINA ELECTRIC POWER RES INST
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