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Configurable high-accuracy control system of time interval frame release Ethernet interface

A time interval and interface control technology, applied in transmission systems, digital transmission systems, hybrid switching systems, etc., can solve the problems of large interval jitter and delay, and achieve the effect of reducing difficulty

Active Publication Date: 2013-07-17
STATE GRID CORP OF CHINA +3
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  • Abstract
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  • 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 configurable high-precision time interval frame release Ethernet interface control method, which solves the problem of large jitter and delay in the transmission interval of sampling value frames in intelligent substations, and eliminates its impact on secondary equipment data reception. and stable operation, improve the safety and stability of substation operation, and at the same time reduce the difficulty of sampling value network transmission technology in engineering applications

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  • Configurable high-accuracy control system of time interval frame release Ethernet interface
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  • Configurable high-accuracy control system of time interval frame release Ethernet interface

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Embodiment Construction

[0030] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0031] figure 1 It is a structural diagram of the Ethernet interface control system issued by the high-precision time interval sampling value frame of the present invention, and specifically includes the following functional modules:

[0032] Frame data control interface module: It has a data communication interface with the pre-message control host, and adaptively opens up data buffers and stores corresponding data information according to different data types of sampled value data or other common data.

[0033] Described message frame data control interface module comprises:

[0034] Sampling value data control interface module: receive the sampling value frame data sent by the pre-sampling value data control host Host, adaptively open up real-time data buffer registers, and automatically store the sampling value frame data;

[0035] Ordinary data control interfa...

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Abstract

The invention discloses a configurable high-accuracy control system of time interval frame release Ethernet interface. The system comprises a frame data control interface module, a self-adaption muS level high-accuracy hardware sequential control module and a high-speed Ethernet communication interface module. The frame data control interface module can develop a data buffer in a self-adaption mode and store corresponding data information according to different data types of the frame data of a sample value or other normal frame data. The self-adaption muS level high-accuracy hardware sequential control module can generate a frame release sequential control mechanism in a self-adaption mode according to a message type, a message content and a high-accuracy sequential requirement which are configured by the system, and select a released contents of the frame data to send to an IP (Internet Protocol)-core-based MAC (Media Access Control) controller of the Ethernet according to the method of high-accuracy timer interruption. The method includes hardware timer interruption triggering, multi-tasking, hardware delay and message frame release. The high-speed Ethernet communication interface module releases Ethernet message frames according to the contents of the group packet of the MAC controller of the Ethernet in high speed. The system can solve the problem of larger jitter delay of the sending interval time of the sampling frame of an intelligent substation.

Description

[0001] technical field [0002] The invention relates to an Ethernet interface control system, especially for the problems that the transmission interval of the sampled value frame message of the power system in the intelligent substation is jittery and delayed, and the receiving and processing of the secondary equipment is complicated and may affect its action behavior. A configurable high-precision time interval frame publishing Ethernet interface control system belongs to the technical field of electric power system intelligent substations. Background technique [0003] With the continuous development and advancement of substation intelligent technology, the on-site requirements for the functions and performance of relay protection devices in substation automation systems are becoming more and more abundant; The sampling value data communication generally adopts the sampling value protocol based on the IEC61850-9 standard; the remote signaling and control communication be...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/861
CPCH04L12/6418
Inventor 李澄赵家庆黄晋荣陆玉军陈颢王伏亮钱科军谢夏寅潘晓明丁宏恩杨洪
Owner STATE GRID CORP OF CHINA
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