A kind of Ethernet communication method and system
A technology of communication system and communication method, which is applied in the direction of transmission system, digital transmission system, data exchange network, etc., and can solve the problems of low network utilization rate, Ethernet network bandwidth cannot be fully utilized for data transmission between devices, etc.
Active Publication Date: 2016-08-24
ZHEJIANG SUPCON RES
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Problems solved by technology
[0006] The technical problem to be solved by the present invention is to provide an Ethernet communication method and system to solve the problem that the network bandwidth provided by Ethernet cannot be used by the data between devices due to the fact that each device sends real-time data at different times in the prior art. Defects of full transmission utilization and low network utilization
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[0095] In order to enable those skilled in the art to better understand the solutions of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is a part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.
[0096] The technical solution of the present invention can be applied to various master-slave Ethernet systems. The topology in the system can be a star structure, a linear structure or a ring structure, and the specific topology can be selected according to actual needs.
[0097] The inventor found in the long-term invention research that in the prior art, ...
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The invention discloses an Ethernet communication method and an Ethernet communication system. The system comprises a main device and at least one auxiliary device. An interchanger is used as an exchanging device between the main device and the auxiliary device and all auxiliary devices. The method is applied to the system. The method comprises the steps that the main device obtains main device real-time data needing sending currently by the main device, and each auxiliary device obtains auxiliary device real-time data needing sending currently by each auxiliary device; the main device sequentially sends the main device real-time data to all corresponding auxiliary devices in preset transmission time periods corresponding to all the auxiliary devices, and all the corresponding auxiliary devices send the main device real-time data; all the auxiliary devices immediately send the auxiliary device real-time data in the corresponding transmission time periods respectively when all the auxiliary devices begin to receive the main device real-time data. According to the technical scheme, bidirectional data transmission among the devices can be achieved, therefore the bidirectional bandwidth provided by the Ethernet can be fully utilized, and a network utilization rate is improved.
Description
technical field [0001] The invention relates to the field of network communication, in particular to an Ethernet communication method and system. Background technique [0002] In network communication, the most commonly used LAN communication protocol standard is Ethernet. Because Ethernet has the advantages of low cost, stability, and reliability, etc., Ethernet technology is increasingly used in various systems such as control systems to realize communication between various devices within the system. [0003] In the communication process of Ethernet, there are data that need to be transmitted among various devices in the system, and many of the data that need to be transmitted are generated in real time. If the amount of real-time data that needs to be transmitted in the system at the current moment is large, it is easy to cause an increase in the delay of sending real-time data in the network at the current moment, affecting the real-time performance of real-time data t...
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IPC IPC(8): H04L12/911H04L12/861
Inventor 邹仁波张伟宁沈泳阮伟傅盼盼
Owner ZHEJIANG SUPCON RES