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Device and method for measuring forwarding delay of chained industrial Ethernet nodes

A measurement device and node forwarding technology, which is applied in the direction of data exchange network, digital transmission system, electrical components, etc., can solve the problems of lack of testing methods and means, affect the communication cycle, reduce the synchronization accuracy between nodes, etc., and achieve wide application prospects. Precise measurement, design principle and reliable effect

Active Publication Date: 2021-06-29
南京实点电子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the nodes in the chain network are cascaded with each other, the forwarding delay of data in the nodes will accumulate as the number of nodes increases, which will affect the communication cycle and reduce the synchronization accuracy between nodes
Therefore, the forwarding delay of data frames between nodes has become one of the important indicators to measure the performance of industrial Ethernet, but there is currently a lack of effective testing methods and means

Method used

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  • Device and method for measuring forwarding delay of chained industrial Ethernet nodes
  • Device and method for measuring forwarding delay of chained industrial Ethernet nodes
  • Device and method for measuring forwarding delay of chained industrial Ethernet nodes

Examples

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Embodiment 1

[0075] The invention provides a device for measuring the forwarding delay of chained industrial Ethernet nodes, which includes a first network port group, a second network port group and a main control module;

[0076] The first network port group is connected to the previous node of the network node to be tested and the network node to be tested,

[0077] The second network port group is connected to the network node to be tested and the next node of the network node to be tested;

[0078] The first network port group is connected to a first network transformer group, and the first network transformer group is connected to a first physical layer chipset;

[0079] The second network port group is connected to a second network transformer group, and the second network transformer group is connected to a second physical layer chipset;

[0080] Both the first physical layer chipset and the second physical layer chipset are connected to the main control module;

[0081] The main...

Embodiment 2

[0084] Such as figure 1 and figure 2 As shown, the present invention provides a measuring device for chained industrial Ethernet node forwarding delay, including a first network port group, a second network port group and a main control module 1; the main control module 1 adopts an FPGA chip or an MCU chip;

[0085] The first network port group is connected with the previous node K-1 of the network node to be tested and the network node K to be tested,

[0086] The second network port group is connected to the network node K to be tested and the next node K+1 of the network node to be tested;

[0087] The first network port group is connected to a first network transformer group, and the first network transformer group is connected to a first physical layer chipset;

[0088] The second network port group is connected to a second network transformer group, and the second network transformer group is connected to a second physical layer chipset;

[0089] Both the first physi...

Embodiment 3

[0104] Such as image 3 As shown, the present invention provides a kind of measurement method of chain industrial Ethernet node forwarding delay, comprises the steps:

[0105] S1. Set the automatic negotiation function of the first physical layer chipset and the second physical layer chipset, and reserve the connection of the data receiving channel to realize the interception of network data;

[0106] S2. The first network port group obtains the chained industrial Ethernet downlink network signal data from the previous node of the network node to be tested, and forwards the downlink network signal data to the network node to be tested, and the second network port group then receives the data from the network node to be tested. The node obtains the downlink network signal data, and forwards the downlink network signal data to the next node of the network node to be tested;

[0107] S3. The first physical layer chipset sends the downlink network signal data obtained by the firs...

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Abstract

The invention provides a device and method for measuring the forwarding delay of chained industrial Ethernet nodes. The device includes a first network port group, a second network port group and a main control module; the first network port group and the network node to be tested The previous node and the network node to be tested are connected, the second network port group is connected to the network node to be tested and the next node of the network node to be tested; the first network port group is connected to the first network transformer group, and the first network transformer group The first physical layer chipset is connected; the second network port group is connected to the second network transformer group, and the second network transformer group is connected to the second physical layer chipset; the first physical layer chipset and the second physical layer chipset are both Connect with the main control module; the main control module respectively calculates the forwarding delay of the network node to be tested for the downlink network signal data and the uplink network signal data, and then calculates according to the forwarding delay of the downlink network signal data and the forwarding delay of the uplink network signal data The integrated delay of the network node to be tested is obtained.

Description

technical field [0001] The invention belongs to the technical field of network forwarding delay measurement, and in particular relates to a measuring device and method for forwarding delay of chained industrial Ethernet nodes. Background technique [0002] The chain network has become the most commonly used topology in industrial Ethernet because of its simple structure, convenient expansion, and low wiring cost. Since the nodes in the chain network are cascaded with each other, the forwarding delay of data in the nodes will accumulate as the number of nodes increases, which will affect the communication cycle and reduce the synchronization accuracy between nodes. Therefore, the forwarding delay of data frames between nodes has become one of the important indicators to measure the performance of industrial Ethernet, but there is currently a lack of effective testing methods and means. [0003] This is the deficiency of the prior art. Therefore, it is very necessary to provi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/26
CPCH04L43/0852H04L43/50
Inventor 姬帅黄祖广胡天亮倪鹤鹏薛瑞娟张承瑞
Owner 南京实点电子科技有限公司