Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Communication method of serial real-time bus special in electricity

A real-time bus and communication method technology, applied in the field of communication, can solve the problems of implementation complexity and failure to meet power relay protection, etc., and achieve the effects of reducing crosstalk, improving upper-layer applications, and accelerating data transmission rates

Active Publication Date: 2010-10-20
STATE GRID ELECTRIC POWER RES INST
View PDF5 Cites 47 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the complexity, real-time performance and reliability of the above-mentioned serial data bus standards cannot meet the transmission requirements of real-time data such as power relay protection, measurement monitoring, safety and stability. Communication method for real-time bus

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Communication method of serial real-time bus special in electricity
  • Communication method of serial real-time bus special in electricity
  • Communication method of serial real-time bus special in electricity

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0042] The present invention will be further described below in conjunction with drawings and embodiments.

[0043] Aiming at different application fields, two embodiments of power-specific real-time data serial bus communication methods are respectively proposed below:

[0044] 1. An embodiment of the protection data transmission channel in the AC high voltage protection hardware platform

[0045] In this embodiment, this method is adopted to realize the channel of digital vertical synchronous communication. The digital longitudinal synchronous communication channel is an important part of the optical fiber differential protection device. It mainly undertakes two parts of work. One is to provide a reliable transmission channel for sampling values ​​such as current and voltage; the other is to provide time information for the synchronization of data sampling on both sides. Foundation.

[0046] Considering the reliability, stability and simplicity of the protection device res...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a communication method of serial real-time bus special in electricity, comprising the following steps that: 1) a line coding of a physical layer adopts a CMI signal inversion code or a 4B5B coder and decoder for receiving and dispatching serial data, and the receiving end adopts a digital phase-locked loop to extract clock from the received code stream; 2) a link layer adopts a HDLC of high-level data link control protocol to achieve the generation of the data frames, the check of the CRC hardware and the sign of the temporal information; 3) an interface control layer realizes the interconnection interface with an upper layer DSP or a processor such as a CPU and the like, mounts the transmission channels on the external bus of the processor, and expands a pluralityof special serial data bus for the processor, thereby achieving the functions of the buffering of the data, the sending of command control and the receiving of the state feedback. The invention adopts the serial communication technique and the differential signal transmission, and the receiving end extracts the clock automatically with strong disturbance resisting and less generation of error code.

Description

technical field [0001] The present invention relates to a communication method, in particular to a communication method of a dedicated serial real-time bus for electric power, which can be implemented based on FPGA hardware and is suitable for transmission of various real-time data in the power industry such as relay protection, measurement monitoring, safety and stability, etc. belongs to the field of communication. Background technique [0002] Communication technology is widely used in various fields such as relay protection, measurement monitoring, security and stability in the power industry. The power system has high requirements for the reliability and real-time performance of data transmission. In the past, due to cost and technical problems, the data communication in power equipment was transmitted by power line carrier, and the amount of information that can be transmitted and the reliability are both Not high, and the communication mode is not flexible. [0003]...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): H04L1/00
Inventor 郭经红徐建松马媛媛邓辉喻强于鹏飞
Owner STATE GRID ELECTRIC POWER RES INST
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com