Managed gigabit industrial Ethernet switch supporting technology for quickly recovering redundancy within 5 ms and meeting requirements of rail traffic control system

A redundancy technology and switch technology, applied in the field of rapid recovery of industrial Ethernet failures, can solve problems such as network interruption, hidden dangers, loose network cable connectors, etc., and achieve the effect of shortening recovery time and promoting development.

Inactive Publication Date: 2011-10-19
SUZHOU HENGQI AUTOMATION ENG
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  • Abstract
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Problems solved by technology

[0003] The industry requires that the communication network must be stable and reliable. However, Ethernet, as an open standard network, brings us a lot of convenience, but also because of its open standard, it has many unexpected security risks, such as: virus, malicious Software, or loose network cable connectors, switch power interruptions, etc. lead to network interruptions, which directly affect the safety of industrial production

Method used

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  • Managed gigabit industrial Ethernet switch supporting technology for quickly recovering redundancy within 5 ms and meeting requirements of rail traffic control system
  • Managed gigabit industrial Ethernet switch supporting technology for quickly recovering redundancy within 5 ms and meeting requirements of rail traffic control system
  • Managed gigabit industrial Ethernet switch supporting technology for quickly recovering redundancy within 5 ms and meeting requirements of rail traffic control system

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Embodiment Construction

[0012] In order to achieve the failure recovery time within 5 ms for gigabit and 15 ms for 100 megabytes, the solution of the present invention adopts the following implementation methods:

[0013] a) The switch of the solution of the present invention adopts the access mode of gigabit and 100 megabit coexistence, wherein the connection state of the gigabit port adopts the mode of hardware interruption, so that the connection signal can reach the processor more quickly and accurately for analysis and processing.

[0014] b) The scheme of the present invention uses the MAC address to identify the master-slave relationship of the switch, and the master-slave relationship is obtained through automatic transmission and automatic calculation.

[0015] c) The solution of the present invention uses a fixed ID number to identify the same redundant ring network. Several redundant rings can exist in the same network.

[0016] d) The solution of the present invention uses fixed groups o...

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Abstract

The invention discloses a managed gigabit industrial Ethernet switch supporting a technology for quickly recovering redundancy within 5 ms and meeting requirements of a rail traffic control system. By adoption of a new redundancy algorithm, master and slave switches are selected, and a normal link and a backup link are determined; the communication state of a port is determined by using an interrupted and polling monitoring method; switching between the backup link and the normal link is realized by changing the state of the port; and the recovery time of a gigabit redundancy technology is shortened to be less than 5 ms, and the recovery time of a megabit redundancy technology is shortened to be less than 15 ms.

Description

technical field [0001] The present invention relates to a managed Gigabit industrial Ethernet switch that supports rapid recovery redundancy technology within 5ms and meets the requirements of rail transit control systems. It relates to the technical field of rapid recovery of industrial Ethernet faults. Surveillance, harsh environment detection and other fields have a wide range of applications. Background technique [0002] With the mature development of Ethernet technology, Ethernet technology is gradually introduced into the field of industrial communication control, and it has a tendency to replace other field buses. Industrial Ethernet has been widely used in the field of industrial communication control due to its open standards and easy scalability. However, its stability and real-time performance are still inferior to other field buses. Therefore, various managed industrial Ethernet switches have begun to enter the industry. In the field of Ethernet, in order to in...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/22H04L12/56H04L12/26H04L45/28
Inventor 贺冬
Owner SUZHOU HENGQI AUTOMATION ENG
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