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Ethernet service transmitting and receiving method and device capable of dynamically configuring bandwidth

A dynamic configuration, Ethernet technology, applied in the field of information transmission, can solve the problems of image quality loss, large video image delay, waste of wiring resources or fiber resources, etc., to avoid mutual influence, save wiring resources, save time, cost and Effects of Human Resource Costs

Active Publication Date: 2011-10-12
ENC DATA SERVICE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the high-definition image is converted into an IP signal, due to the need to encapsulate and encode the data during transmission, there will be a large delay in the video image, and at the same time, the image quality will also be greatly lost.
In many occasions, high-definition HD-SDI signals and Ethernet services must be connected and transmitted at the same time, so if high-quality high-definition image transmission is to be ensured, different lines are required to carry these two completely different services. Great waste of wiring resources or fiber resources

Method used

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  • Ethernet service transmitting and receiving method and device capable of dynamically configuring bandwidth
  • Ethernet service transmitting and receiving method and device capable of dynamically configuring bandwidth
  • Ethernet service transmitting and receiving method and device capable of dynamically configuring bandwidth

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Embodiment Construction

[0046] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0047] Such as figure 1 As shown, it is a method for sending Ethernet services that can dynamically configure bandwidth in Embodiment 1 of the present invention, and the method includes:

[0048] The input HD-SDI high-definition image signal enters the high-speed Serdes channel of FPGA after being equalized by the equalizer; the serdes receiving module of FPGA recovers 20bit parallel data and HD-SDI link clock according to the reference clock, and the 20bit parallel data enters HD-SDI protocol detection module to detect the current image format and the quality of the input signal;

[0049] The input Ethernet service message enters the FRGA through an Ethernet switch chip or directly through an Ethernet physical port, and the Ethernet switch chip is connected to the FPGA through a Gigabit port;

[0050] The MAC module of the FPGA receives the Ethernet servic...

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Abstract

The embodiment of the invention discloses an Ethernet service transmitting and receiving method and device capable of dynamically configuring a bandwidth, which are used for the field of information transmission; an Ethernet data frame is scrambled into a high-definition image HD-SDI signal after being encoded; the Ethernet service is enabled and decoded to seamlessly fuse two service data of a HD-SDI (High-Definition Serial Digital Interface) image signal and Ethernet data on an HD-SDI; without substantially affecting the image quality, the bandwidth is dynamically configured to transmit the Ethernet service data while the HD-SDI image signal is transmitted; meanwhile, absolute isolation is assured at two levels of the high-definition image signal and the Ethernet service data so that the mutual influence during transmission is avoided. Therefore, a large quantity of wiring resources, huge time cost and human resources cost are saved for related projects in the fields like broadcast television, security monitoring and the like.

Description

technical field [0001] The invention relates to the field of information transmission, in particular to a method for sending and receiving Ethernet services with dynamically configurable bandwidth and a device for sending and receiving Ethernet services. Background technique [0002] HD-SDI (High Display-Serial Digital Interface, High Display-Serial Digital Interface) is a high-definition digital input and output interface used in broadcasting. This interface has been successfully applied in the field of broadcasting and television. widely used in the field. HD-SDI adopts two transmission rates of 1.485G and 2.97G, and can support maximum 1920x108060Hz image transmission without delay. [0003] HD-SDI high-definition serial digital interface adopts coaxial cable, with BNC interface as the standard interface, and the effective transmission distance is 100 meters. It is currently the interface with the longest distance for transmitting high-definition images through cables, w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/56H04N7/26H04L47/76
Inventor 梁晓东田广梁龙飞
Owner ENC DATA SERVICE CO LTD
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