FPGA-based optical fiber transmission device with redundancy function

Abstract

The invention discloses an FPGA-based optical fiber transmission equipment with a redundancy function. The system comprises master equipment and slave equipment. The master end equipment and the slaveend equipment are connected through two sets of independent high-speed bidirectional double-core optical fiber cables. The method is characterized in that the method is characterized by comprising the following steps; two optical fiber aviation plug connectors with consistent interface definitions are adopted in each of the master end equipment and the slave end equipment. The two single-receiving and single-transmitting photoelectric conversion modules have the same model; the two optical fiber aviation plug connectors are respectively connected to the two single-receiving and single-transmitting photoelectric conversion modules in the master end equipment and the slave end equipment; the master end equipment and the slave end equipment are connected through two sets of external independent high-speed bidirectional double-core optical fiber cables. According to the hybrid uncompressed transmission method and system, hybrid uncompressed transmission of different signal types and different numbers of signals of the same type can be achieved, automatic redundancy switching can be carried out by detecting abnormity of optical fiber channel data transmission, and the reliability of transmission is guaranteed.

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...

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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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