Industrial optical fiber Ethernet switch

A technology of Ethernet and switch, which is applied in the direction of data exchange network, digital transmission system, electrical components, etc. It can solve the problems of no industrial optical fiber Ethernet switch, high price, poor technical performance guarantee, etc., and achieve the performance of information directional transmission Good, small transmission delay, high reliability

Inactive Publication Date: 2010-10-27
NANJING UNIV OF POSTS & TELECOMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, domestic large-scale substations all have the demand for all-fiber digital substation systems, while similar industrial optical fiber switches in foreign countries are expensive and have poor technical performance guarantees, which cannot meet the needs of existing development.
[0004] So far, no industrial fiber optic Ethernet switch for substation environment has been developed in China.

Method used

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  • Industrial optical fiber Ethernet switch
  • Industrial optical fiber Ethernet switch
  • Industrial optical fiber Ethernet switch

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specific Embodiment

[0019] A specific embodiment of the present invention is as follows:

[0020] The integrated control module adopts programmable logic device FPGA chip MT5129, which is composed of 32-bit CPU processor, SDRAM, FLASH, NVRAM and some peripheral circuits. The CPU mainly runs the embedded operating system, network control and system management software; the FLASH is used to store all the software and related configurations required by the switch; the SDRAM loads the program in the FLASH after the system starts to ensure the normal operation of the system; The serial port RS-232 is connected to the transformer circuit between the connection with the network management computer, which is used to convert the electrical signal of the serial port RS-232 into the serial port of the network management computer after voltage conversion.

[0021] The switch integration module adopts large-scale FPGA chip IP3009S, which is used to realize optical signal conversion control, Ethernet protocol,...

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PUM

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Abstract

The invention discloses an industrial optical fiber Ethernet switch which belongs to the technical field of network switches. The industrial optical fiber Ethernet switch comprises a control integrating module, an exchange integrating module and an optical fiber integrating module, wherein the exchange integrating module is in two-way connection respectively with the control integrating module and the optical fiber integrating module; the optical fiber integrating module comprises at least two independent optical fiber integrating submodules; and each optical fiber integrating submodule is connected with corresponding peripheral optical fiber terminal equipment, and the control integrating module is connected with a network management computer by a serial port RS232. The functions of network protocol and looped network protocol algorithm, and the like are realized by adopting a large-scale FPGA (Field Programmable Gate Array) hardware technology, the system response time reaches a hardware linear speed grade, and the invention has strong interference resistance, less transmission time delay and favorable transmission performance.

Description

technical field [0001] The invention relates to a switch, in particular to an industrial optical fiber Ethernet switch for substation environment, and belongs to the technical field of network switches. Background technique [0002] POF plastic optical fiber is suitable for connection, and the coupling efficiency of light is also high. At the same time, it also has the advantages of softness, bending resistance, vibration resistance, radiation resistance, cheap price, and convenient construction. It can replace traditional quartz optical fiber and copper cable, and is very suitable for Applied to complex industrial Ethernet environments with many connection points. At present, many companies and standardization associations in the world have joined the ranks and invested a lot of manpower and material resources. As a substitute for copper cables and quartz optical fibers, plastic optical fibers are supported by various technical standards. For example, Ethernet, 1394, ATM, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/56H04Q11/00H04L12/931
Inventor 仇永生王勇
Owner NANJING UNIV OF POSTS & TELECOMM
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