A method and system for receiving and tracing frame dispersion based on electro-optical homology

A discrete, electro-optic technology, applied in transmission systems, digital transmission systems, electrical components, etc.

Active Publication Date: 2021-06-15
CHINA ELECTRIC POWER RES INST +4
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The present invention provides a method and system for receiving and tracing frame dispersion based on electro-optic homology, so as to solve the problem of determining the value traceability of message dispersion

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  • A method and system for receiving and tracing frame dispersion based on electro-optical homology
  • A method and system for receiving and tracing frame dispersion based on electro-optical homology
  • A method and system for receiving and tracing frame dispersion based on electro-optical homology

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Embodiment Construction

[0030] Exemplary embodiments of the present invention will now be described with reference to the drawings; however, the present invention may be embodied in many different forms and are not limited to the embodiments described herein, which are provided for the purpose of exhaustively and completely disclosing the present invention. invention and fully convey the scope of the invention to those skilled in the art. The terms used in the exemplary embodiments shown in the drawings do not limit the present invention. In the figures, the same units / elements are given the same reference numerals.

[0031] Unless otherwise specified, the terms (including scientific and technical terms) used herein have the commonly understood meanings to those skilled in the art. In addition, it can be understood that terms defined by commonly used dictionaries should be understood to have consistent meanings in the context of their related fields, and should not be understood as idealized or over...

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Abstract

The invention discloses a frame dispersion receiving and tracing method based on electro-optic homology, which is characterized in that the method includes: calibrating the local clock according to the input standard second pulse signal, and obtaining the clock calibration error value; receiving and decoding the Ethernet message frame and output the synchronization pulse at the start time of the corresponding message frame header; respectively capture the start time of the message frame header synchronization pulse corresponding to the Ethernet message frame and the start time of the standard pulse, and calculate the captured Time difference; according to the captured time difference and clock calibration error value, the capture time of the message frame header corresponding to the Ethernet message frame is corrected; and the start of the corrected Ethernet message frame header synchronization pulse The initial time information is reassembled and packaged, appended to the header of the original Ethernet message frame to form a new Ethernet message frame with the initial time information, and the new Ethernet message frame with the initial time information The network message frame is sent out through Ethernet.

Description

technical field [0001] The present invention relates to the technical field of intelligent substation detection, and more specifically, to a frame dispersion receiving and tracing method and system based on electro-optic homology. Background technique [0002] With the deepening of the construction of intelligent substations, the indicators of intelligent secondary equipment have been greatly improved. In order to obtain high-precision process-level sampling data, new requirements are put forward for the sampling accuracy of process-level equipment. The enterprise standard of the State Grid Corporation of China "Q / GDW 11015-2013 Test Specification for Analog Input Merging Units" points out that the merging unit (MU) The discreteness of the message should not be greater than 10μs, because the output of some bus merging units used for cascading uses IEC61850-9-2LE protocol messages (referred to as SV messages), and the post-stage interval merging unit uses a difference algorit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L7/00H04L12/26
Inventor 熊前柱胡浩亮李鹤李登云徐子立杨春燕聂琪姚力胡瑛俊章江铭万鹏
Owner CHINA ELECTRIC POWER RES INST
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