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Ethernet information real-time transmission method and device

A real-time transmission, Ethernet technology, applied in the field of digital information transmission, can solve problems such as the inability to guarantee the real-time performance of ordinary messages and key messages, and large network conflicts, and achieve the effect of ensuring real-time performance and reducing the probability of network conflicts.

Inactive Publication Date: 2015-03-11
YUNNAN POWER GRID
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is that when the Ethernet based on the UDP protocol sends messages in the prior art, the network conflict is large, and the real-time performance of ordinary messages and key messages cannot be guaranteed.

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  • Ethernet information real-time transmission method and device
  • Ethernet information real-time transmission method and device
  • Ethernet information real-time transmission method and device

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Embodiment Construction

[0051] The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.

[0052]The present invention is designed for communication in a subnet and cannot penetrate the subnet.

[0053] figure 1 Shows the flow of the message real-time transmission method of the present invention, including the following steps:

[0054] Step 1: Specify a different protocol address for each node in the network, select any node in the network as the current node, and the current node stores messages to be sent, and the messages to be sent include ordinary messages and high-priority messages.

[0055] Step 2: When the message to be sent by the current node is the normal message, the current node broadcasts the normal message.

[0056] Step 3: All nodes in the network except the current node judge whether th...

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Abstract

The invention relates to an Ethernet information real-time transmission method and device. The method comprises the following steps: respectively assigning a different protocol address for each node in a network, selecting any node in the network as the current node, broadcasting normal information through the current node, judging whether each of all nodes except the current node in the network is the target node respectively through a target address in the normal information, and judging whether each of all nodes except the current node is the node waiting for sending the information next time through a source address in the normal information, setting difference value between the protocol address of the node waiting for sending the information next time and the protocol address of the current node as a constant value, and using the node waiting for sending the information next time as the current node to continuously send the information. The device comprises an address distribution module, an information-sending module, a judgment processing module and a privileged module. The invention provides a high priority information, and the real-time of a key message can be guaranteed while the real-time of a normal message is considered.

Description

technical field [0001] The invention relates to the field of digital information transmission, in particular to a method and device for real-time transmission of Ethernet messages. Background technique [0002] Ethernet technology has been continuously innovating since its birth. The network bandwidth has developed from the initial 10Mbps to 100Mbps, 1Gbps and even 10Gbps. The transmission medium has evolved from coaxial cable to twisted pair, optical fiber and wireless. The network topology has developed from bus to star, The emergence of ring and mesh structure, fast and switched Ethernet has significantly improved the performance of Ethernet. [0003] With its highly flexible, simple and easy-to-implement features, Ethernet has become the most important local area network networking technology today, and it has also begun to extend to wide area networks and industrial sites. However, the characteristics of its physical layer and media access layer determine that it is a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/865H04L47/6275
Inventor 龚石林冯彦钊郑玮蔡鑫王晨曾臻
Owner YUNNAN POWER GRID
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