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EPA industrial bus and time sensitive network adaptation system and method

An industrial bus, time-sensitive technology, applied in the direction of bus network, time division multiplexing system, transmission system, etc., to achieve the effect of making good use of bandwidth efficiency

Active Publication Date: 2020-03-31
CHONGQING UNIV OF POSTS & TELECOMM
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The technical problem to be solved by the present invention is the technical problem that the EPA Ethernet in the prior art cannot be connected with the time-sensitive network in real time to build a fast channel

Method used

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  • EPA industrial bus and time sensitive network adaptation system and method
  • EPA industrial bus and time sensitive network adaptation system and method
  • EPA industrial bus and time sensitive network adaptation system and method

Examples

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Embodiment 1

[0045] This embodiment provides an EPA industrial bus and time-sensitive network adaptation system, such as figure 1 , the EPA industrial bus and time-sensitive network adaptation system includes an EPA endpoint device and a TSN endpoint device; the EPA endpoint device is connected to a TSN bridge device through a TSN adapter communication, and the TSN bridge device is connected to the TSN endpoint device;

[0046] The TSN adapter receives the time data from the master clock of the TSN bridge device, and adds a timestamp to complete the clock synchronization during the process of receiving or transmitting the clock synchronization data;

[0047] TSN bridge devices are used to provide time synchronization, low latency, low jitter, and streaming bandwidth guarantees.

[0048] Such as figure 1 As shown, multiple endpoint devices supporting the TSN standard jointly form a TSN domain. EPA endpoint devices that do not support TSN services are outside the TSN domain. The EPA endp...

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PUM

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Abstract

The invention relates to an EPA industrial bus and time sensitive network adaptation system and method, solves the technical problem that an EPA Ethernet cannot be connected with a time sensitive network in real time to construct a fast channel, and comprises an EPA endpoint device and a TSN endpoint device. The EPA endpoint device is in communication connection with a TSN bridging device througha TSN adapter, and the TSN bridging device is connected with the TSN endpoint device; the TSN adapter receives the time data issued by the main clock from the TSN bridging device, and adds a timestampin the process of receiving or transmitting the clock synchronization data to complete clock synchronization; and the TSN bridging device is used for providing time synchronization, low delay, low jitter and flow bandwidth guarantee, so that the problem is better solved, and the method can be applied to the EPA industrial technology.

Description

technical field [0001] The invention relates to the field of industrial networks, in particular to an EPA industrial bus and time-sensitive network adaptation system and method. Background technique [0002] The field of factory automation began to develop and apply real-time communication based on the advantages of Ethernet, and began to compare and analyze the real-time performance of various real-time Ethernet technologies. Each technology has its own advantages and disadvantages, but they all have one thing in common. Most of the standards are proprietary solutions, that is, to meet the real-time requirements by modifying the standard Ethernet in the hardware or software protocol stack. The IEEE decided to develop a real-time Ethernet audio-video bridging standard (AVB). The solution proposed by AVB is mainly used in the transmission of audio and video data in the entertainment field, using CBS, stream reservation and clock synchronization mechanisms to achieve a maximu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/40H04L12/46H04L12/801H04L12/851H04J3/06
CPCH04L12/40143H04L12/4666H04L47/39H04L47/2433H04J3/0661Y02P90/02
Inventor 王浩李育桐
Owner CHONGQING UNIV OF POSTS & TELECOMM
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