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Site synchronization system and method for industrial Ethernet

A technology of Ethernet and site, which is applied in the field of electronic information, can solve the problems of inaccurate operating system and protocol stack time, and achieve the effect of solving low real-time processing capacity, improving processing capacity, and shortening cycle time

Active Publication Date: 2016-12-14
深圳市骏龙电子有限公司
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  • Abstract
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  • Application Information

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Problems solved by technology

[0004] Embodiments of the present invention provide a site synchronization system and method for industrial Ethernet, which can solve the problem of inaccurate time due to the jitter of the operating system and protocol stack

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  • Site synchronization system and method for industrial Ethernet
  • Site synchronization system and method for industrial Ethernet
  • Site synchronization system and method for industrial Ethernet

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Embodiment Construction

[0023] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. Hereinafter, embodiments of the present invention will be described in detail, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention. Those skilled in the art will understand that unless otherwise stated, the singular forms "a", "an", "said" and "the" used herein may also include plural forms. It should be further understood that the word "comprising" used in the description of the present invention refe...

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Abstract

The invention discloses a site synchronization system and method for an industrial Ethernet, wherein the problem of inaccurate time due to jittering of an operating system and a protocol stack can be solved; a process for a processor to process packet sending and unpacking is avoided by sending a packet in a timed manner and analyzing a received industrial Ethernet packet in real time; the processing capability of the whole system is improved; the problem of low real-time processing capability due to jittering of the operating system and a software protocol stack can be solved; a timing function of a master station can also be provided; and synchronous operation between slave stations can be cooperative. The site synchronization system and method for the industrial Ethernet disclosed by the invention comprise: a clock counter is set in an FPGA; the master station is connected to a main control processor; a reference clock parameter is provided for the master station by the clock counter; the master station is used for performing clock synchronization through the reference clock parameter sent by the clock counter, and also used for sending a clock synchronization packet to the corresponding slave station; and the slave station corresponding to the master station is used for performing clock synchronization according to the clock synchronization packet sent by the master station. The site synchronization system and method disclosed by the invention are suitable for site control.

Description

technical field [0001] The invention relates to the field of electronic information technology, in particular to a site synchronization system and method for industrial Ethernet. Background technique [0002] In the currently commonly used Ethernet control automation technology (EtherCAT) solution, the slave station uses ASIC to achieve hard real-time, while the master station is a soft solution based on high-performance CPU, which makes the minimum cycle period of the system during operation restricted. Regarding the CPU of the master station, if the performance of the CPU used by the master station is not high enough, or the real-time performance of the operating system is insufficient, the cycle period will increase. [0003] There are many factors that affect the real-time performance of the operating system. For example, in the application based on the current EtherCAT protocol, the master station protocol needs to continuously obtain the timer clock from the operating ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04J3/06H04L12/40
CPCH04J3/0661H04L12/40006H04L2012/4026
Inventor 丁春波董怡斌
Owner 深圳市骏龙电子有限公司
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