FPGA-based full-mode Cameralink digital image optical transceiver receiving terminal and transmitting terminal

Abstract

The invention relates to the technical field of Cameralink high-speed digital image long distance transmission, and particularly discloses an FPGA-based full-mode Cameralink digital image optical transceiver transmitting terminal comprising an FPGA chip, a Cameralink interface module and an SFP optical module. The FPGA chip comprises a series-to-parallel signal conversion module, a Cameralink decoding module and a mode control module. The Cameralink interface module receives a Cameralink signal and transmits the Cameralink signal to the Cameralink decoding module. The Cameralink decoding module decodes serial data and transmits the decoded serial data to the series-to-parallel signal conversion module. The series-to-parallel signal conversion module performs series-to-parallel conversion on the received digital image signal so as to form the serial data stream. The SFP optical module receives the serial data stream and converts the serial data stream into an optical fiber signal. The mode control module controls the work mode of the transmitting terminal. Correspondingly, the invention also discloses an FPGA-based full-mode Cameralink digital image optical transceiver receiving terminal. FPGA chip software setting is utilized to replace the conventional coding and decoding chip so that the transmitting terminal and the receiving terminal of the optical transceiver are enabled to be identical in hardware structure, and the beneficial effect of increasing system integration can be achieved.

Description

technical field [0001] The invention relates to the technical field of long-distance transmission of Cameralink high-speed digital images, in particular to an FPGA-based full-mode Cameralink digital image optical transceiver. Background technique [0002] In the field of cameralink digital image transmission technology, in the traditional transmission mode, the transmission medium between devices is directly connected by cameralink data line, which makes it poor in anti-interference and short in transmission distance. (CameraLink is a serial communication protocol specifically for machine vision applications, using low-voltage differential signals for LVDS transmission; LVDS, Low Voltage Differential Signaling, is a low-voltage differential signal technology interface.) [0003] Because optical fiber transmission has the advantages of good confidentiality, strong anti-interference performance, high transmission rate and large capacity, there are more and more Cameralink imag...

AI Technical Summary

Problems solved by technology

[0005] The present invention aims to overcome the technical defects that the sending end and receiving end of the existing digital image optical transceivers cannot be used universally and rely on codec chips, and provide a FPGA-based full-mode Cameralink digital image optical transceiver sending end and Receiving end

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