Method for realizing multi-link redundancy based on buffer management

An implementation method and buffer management technology, which are applied in the implementation field of multi-link redundancy, can solve problems such as complex multi-link management, and achieve the effects of flexible configuration, strong portability, and high practicability.

Active Publication Date: 2007-11-14
NANJING NRIET IND CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In this method, as long as the data in one of the links reaches the receiver safely, the transmission process is com

Method used

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  • Method for realizing multi-link redundancy based on buffer management
  • Method for realizing multi-link redundancy based on buffer management
  • Method for realizing multi-link redundancy based on buffer management

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Embodiment Construction

[0024] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0025] A method for realizing multi-link redundancy based on buffer management, first setting up an independent communication management task for each communication link, and making each communication link work independently without establishing an association with each other;

[0026] Secondly, the time stamp and reply mechanism are adopted in the communication, that is, the sender adds the data number of the unique identification code of the marked data in the sent data packet, the destination code including the equipment identification number of the sending and receiving party, and the equipment identification number of the sending party The source code of the data and the time stamp when the data is sent; after receiving the data packet sent by the sender, the receiver processes the data packet and sends it to the receiving buffer, and then sends the...

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Abstract

Based on multitasking operating system, the method uses multitask to manage multilink communication. Communication of each link is managed by independent task. Association is not setup between tasks of managing communication of link. Interface between link management and application task in through data buffer. Based on multitask system, and using standard interface of operation system, the method is realized through complete software manner. The invention is able to match redundancy in multiple isomorphic or isomerous links without need of adding any input / output unit etc hardware. Features are: high portability, flexible configuration, and high practicability.

Description

technical field [0001] The invention relates to a data communication guarantee method, in particular to a method for ensuring successful data transmission and reception in a multi-channel guarantee system, specifically a method for realizing multi-link redundancy based on buffer management. Background technique [0002] In some areas of automatic control systems that involve significant personal and equipment safety, the system is required to have extremely high communication reliability. For this reason, two or more communication links are usually set up between two devices that When a link fails, communication between devices is interrupted. And the multi-link redundant system also emerges as the times require. Taking the dual-link redundant system as an example, two communication links are set between two devices that need to communicate. When one of the links fails, the other link can still ensure normal communication. [0003] The core technology to realize the multi...

Claims

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Application Information

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IPC IPC(8): H04L1/22H04L12/56H04L45/586H04L49/9015
Inventor 苗刚陈文赛
Owner NANJING NRIET IND CORP
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