An optical fiber transmission device with redundancy function based on fpga

Abstract

The invention discloses an optical fiber transmission device with redundancy function based on FPGA, which includes a master device and a slave device, and the master device and the slave device are connected by two sets of independent high-speed bidirectional dual-core optical fiber cables, which are characterized in that : Both the master-end device and the slave-end device use two fiber-optic aviation plug connectors with the same interface definition, and two single-receiving and light-emitting photoelectric conversion modules of the same type, and the two fiber-optic aviation plug-in connectors The main-end device and the slave-end device are connected by two sets of independent high-speed bidirectional dual-core optical fiber cables to form a set of two physical transceivers. Redundant backup of connection, the present invention can realize mixed uncompressed transmission of different signal types and different quantities of the same type of signal, and can perform automatic redundant switching by detecting the abnormality of fiber channel data transmission, ensuring the reliability of transmission .

Description

technical field [0001] The invention relates to the field of optical fiber technology, in particular to an FPGA-based optical fiber transmission device with redundant functions. Background technique [0002] Compared with traditional dielectric transmission, optical fiber transmission has many advantages such as wide frequency band, long transmission distance, small loss, light weight, small size, anti-electromagnetic interference, good transmission quality, good confidentiality, and saving metal materials. Various signal transmission fields are widely used. [0003] The current optical fiber transmission equipment mainly has the following forms: one is to use an application-specific integrated chip to transmit a certain type of signal such as video, audio, serial port, USB, IO, etc., and the types and quantities of transmittable signals are limited. , the other is to use programmable device FPGA processing to transmit, which can transmit certain types of signals, mainly li...

AI Technical Summary

Problems solved by technology

[0003] The current optical fiber transmission equipment mainly has the following forms: one is to use a dedicated integrated chip to transmit a certain type of signal such as video, audio, serial port, USB, IO, etc., and the types and quantities of transmittable signals are limited. , the other is to use programmable device FPGA processing to transmit, which can transmit certain types of signals, mainly limited to video + audio or video + serial port and other types, the types of transmission are not rich and the number of transmissions is insufficient, and the above two The method also has a common disadvantage that it cannot be applied to occasions that require high transmission reliability. There is no redundancy function, and the single-channel transmission method is basically adopted. When physical damage occurs in the transmission on the fiber channel or abnormal transmission data occurs, Will cause the entire transmission system to fail

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