Fiber data transmission method based on asynchronous communication mode

A data transmission method and asynchronous communication technology, applied in the field of production process monitoring system data transmission technology and optical fiber communication, can solve the problems of not clearly stating the method and accuracy index of data accuracy, and not clearly giving asynchronous communication, etc., to achieve Reduce the probability of error, reduce the generation of bit errors, and reduce the effect of the metastable state

Active Publication Date: 2014-09-03
TIANJIN UNIV
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  • Abstract
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Problems solved by technology

However, in such solutions, how to realize asynchronous communication has not been clearly given, and the methods and accuracy indicators for improving data accuracy during data transmission have not been clearly proposed

Method used

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  • Fiber data transmission method based on asynchronous communication mode
  • Fiber data transmission method based on asynchronous communication mode
  • Fiber data transmission method based on asynchronous communication mode

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Embodiment Construction

[0021] At first the technical scheme of the transmission method of the present invention is described:

[0022] In the optical fiber data transmission method based on the asynchronous communication mode of the present invention, the basic framework of the high-speed data transmission circuit adopted is as follows: image 3 As mentioned above, it is implemented by using the internal function design method of the FPGA chip. The implemented logic functions include data generation, digital clock management module, clock compensation, data detection, gray code counting asynchronous FIFO buffer and Aurora protocol logic control, wherein data generation, Digital clock management, clock compensation, data detection, and Aurora protocol logic control functions are implemented using FPGA standard settings. The transmission method of the present invention is improved in several parts of the realization of the asynchronous FIFO cache based on Gray code counting, the generation of the cloc...

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Abstract

The invention relates to a fiber data transmission method based on an asynchronous communication mode. According to the method, an employed high speed data transmission circuit is realized by employing an internal function design mode of an FPGA chip, the realized logic functions comprise data generation, digital clock management, clock compensation, data detection, asynchronous FIFO caching based on Gray code counting and Aurora protocol logic control, and the functions of data generation, digital clock management, clock compensation, data detection and Aurora protocol logic control are realized by employing an FPGA standard setting mode. The method is characterized by realizing asynchronous FIFO caching based on Gray code counting, clock network generation and a transmission circuit function. The method employs a fiber data transmission method combining the asynchronous FIFO caching based on the Gray code counting mode with an Aurora protocol, and thereby data transmission accuracy is improved.

Description

technical field [0001] The invention relates to the fields of production process monitoring system data transmission technology and optical fiber communication technology, in particular to a data transmission method in an optical fiber communication data transmission system based on the Aurora protocol. Background technique [0002] With the continuous expansion of the scale and the improvement of real-time performance of the modern production process monitoring system, the monitoring data volume of the system is also continuously increasing. For the real-time and long-distance transmission of large amounts of data, higher requirements are put forward for the accuracy of the transmitted data. In recent years, with the rapid development of digital electronic technology, testing technology, and communication technology, especially the emergence of emerging technologies such as differential serial signal transmission, clock data recovery (Clock Data Recovery, CDR) and channel e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B10/25H04L1/00
Inventor 董峰马云峰许聪谭超
Owner TIANJIN UNIV
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