A design of real-time digital video transmitting system applied in LED screen remote display was presented

which converts the video signal from the DVI interface of PC to the Ethernet frame format for long distance transmission. The digital signal would be decoded and recovered from the frames

and would be suitable for remote display. Receiving module and control module was integrated in a circuit board

which can set the resolution and refresh rate flexibly. The cascade of receive-control modules was realized by RJ45 interfaces of gigabit Ethernet Hub

which removed the module used for receiving and transmitting data and reduced the complexity of the design. On the basis of actual demand for long-distance transmission

breaking the restriction that the longest transmission of 1000BASE-T is 100 m

a design of optical fiber converter of Ethernet was presented. Using single-mode optical fiber instead of 1000BASE-T

the transmission distance is up to 10 km. This design proposal has implemented real-time digital video transmission with reasonable display effects

providing reference to the various real-time digital video transmission systems.