阅读说明：本技术 一种超清视频传输方法及系统 (Ultra-clear video transmission method and system ) 是由 孙峰 刘继年 李必光 于 2021-06-01 设计创作，主要内容包括：本发明公开了一种超高清视频传输方法及系统,方法包括步骤在发送端将超高清视频分割成多路更小带宽视频；将多路更小带宽视频通过HDMI远距离传输到接收端；在接收端对多路更小带宽合成为一路超高清视频；系统包括发送端、接收端及多路网络传输线路；发送端用于将一路超高清视频分割成多路更小带宽视频并通过多路网络传输线路远距离传输到接收端,对多路更小带宽视频进行编码；接收端用于对接收到的多路更小带宽编码视频进行解码,将解码后的多路更小带宽视频合并成一路超高清视频并通过HDMI传输到显示模组进行显示。实施本发明,解决了超清视频因为带宽高,严重限制实时远距离传输的问题。(The invention discloses a method and a system for transmitting ultra-high-definition video, wherein the method comprises the steps of dividing the ultra-high-definition video into a plurality of paths of videos with smaller bandwidths at a transmitting end; transmitting the multi-channel video with smaller bandwidth to a receiving end in a long distance through the HDMI; synthesizing a path of ultra-high definition video at a receiving end with a plurality of paths of smaller bandwidths; the system comprises a sending end, a receiving end and a multi-path network transmission line; the sending end is used for dividing one path of ultra-high definition video into a plurality of paths of videos with smaller bandwidths and transmitting the videos to the receiving end in a long distance through a plurality of paths of network transmission lines to encode the plurality of paths of videos with smaller bandwidths; the receiving end is used for decoding the received multi-channel smaller bandwidth coded video, combining the decoded multi-channel smaller bandwidth video into a channel of ultra-high definition video and transmitting the channel of ultra-high definition video to the display module through the HDMI for displaying. The invention solves the problem that the real-time remote transmission of the ultra-clear video is seriously limited due to high bandwidth.)

1. An ultra high definition video transmission method, comprising the steps of:

dividing the ultra-high-definition video into a plurality of paths of smaller-bandwidth videos at a sending end;

the multi-path video with smaller bandwidth is remotely transmitted to a receiving end through an HDMI;

and synthesizing the plurality of paths of smaller bandwidth videos into one path of ultra high definition video at the receiving end.

2. Ultra high definition video transmission method according to claim 1, characterized in that said steps: the method comprises the following steps of dividing an ultra-high definition video into a plurality of paths of smaller bandwidth videos at a sending end, and comprising the following substeps:

acquiring an ultra-high definition video through an HDMI transmission technology;

and dividing the ultra-high-definition video into two paths of videos with smaller bandwidths.

3. Ultra high definition video transmission method according to claim 2, characterized in that said steps: the ultra-high-definition video is obtained through an HDMI transmission technology, and the bandwidth of the ultra-high-definition video exceeds 32 Gbps.

4. Ultra high definition video transmission method according to claim 2, characterized in that said steps: the method comprises the following steps of dividing the ultra-high definition video into two paths of videos with smaller bandwidths, and comprising the following substeps:

and dividing the ultra-high-definition video into two paths of videos with equal bandwidth.

5. Ultra high definition video transmission method according to claim 1, characterized in that said steps: the multi-path smaller bandwidth video is remotely transmitted to a receiving end through the HDMI, and the method comprises the following substeps:

transmitting the multi-channel smaller bandwidth video by adopting an HDMI transmission protocol;

encoding the multiple smaller bandwidth videos prior to transmission.

6. Ultra high definition video transmission method according to claim 5, characterized in that said steps: transmitting the multi-channel smaller bandwidth video by adopting an HDMI transmission protocol, wherein the transmission protocol is as follows:

one or more of HDBaseT, SDVOE, AVX.

7. Ultra high definition video transmission method according to claim 1, characterized in that said steps: synthesizing the plurality of paths of smaller bandwidth videos into one path of the ultra-high definition video at the receiving end, and the method comprises the following substeps:

decoding the received multiple paths of smaller bandwidth video;

merging the decoded multiple paths of smaller bandwidth videos into one path of ultra-high definition video;

and transmitting the ultra-high definition video to a display module through an HDMI transmission technology.

8. The ultra high definition video transmission method according to claim 1, further comprising the steps of:

transmitting the automatic control signal to a receiving end through the HDMI;

and carrying out audio-visual automatic control on the system according to the received automatic control signal.

9. An ultra high definition video transmission system, comprising:

a sending end:

a receiving end;

a multi-path network transmission line;

the transmitting end comprises:

the segmentation unit is used for segmenting one path of ultra-high definition video into a plurality of paths of videos with smaller bandwidths and transmitting the videos to a receiving end in a long distance through the multi-path network transmission line;

an encoding unit; for encoding the multiple smaller bandwidth videos;

the receiving end includes:

a decoding unit for decoding the received multiple paths of smaller bandwidth encoded video;

and the merging unit is used for merging the decoded multiple paths of smaller bandwidth videos into one path of ultra-high definition video and transmitting the ultra-high definition video to the display module through the HDMI for displaying.

10. The ultra high definition video transmission system according to claim 1, wherein the ultra high definition video bandwidth is at least 32 Gbps.

Technical Field

The invention relates to the technical field of video communication, in particular to a super-definition video transmission method and system.

Background

With the popularization of high-definition video signal application, high-definition signal sources are adopted in more and more multimedia video and audio scenes, and video conference application in the conference room industry, remote video teaching application in the education industry, medical operation video teaching application and the like are very typical application modes. At the same time as the development of video hardware technology, the multimedia industry puts higher requirements on video definition, high-definition video signal sources such as 720P @60Hz, 1080P @60Hz and 8K60 videos are more and more popular, especially in the application of large-screen display, the resolution of the 8K60 video is higher, the dynamic performance is better, and the market has wide requirements on the 8K60 HDMI high-definition video.

When the high-definition video signal is transmitted by the method based on the network transmission after the encoding, a network cable is required to be adopted for transmission, and the loss of video quality and the image delay exist. When long-distance transmission is needed, the problems of video quality loss and image delay are more serious, so that the video quality and real-time performance of high-definition video signals transmitted in a long distance are difficult to ensure.

When the high-definition video signal is transmitted by using the data transmission standard transmission method of the SDI based on the original data, the transmission distance is limited in order to ensure the data transmission quality because the data volume of the high-definition video signal is large. For example, in order to ensure data transmission quality, a maximum transmission distance of a high-definition video signal adopting a 720p format or a 1080p format is within 100 meters. Therefore, the method of transmitting data based on the original data by using the data transmission standard of the SDI also cannot guarantee the video quality of the high-definition video signal transmitted over a long distance.

The basic data bandwidth of 8K60 is 32Gbps, and due to the limitation of bandwidth, the HDMI transmission technical scheme in the existing market cannot meet the long-distance requirement of 8K60 video. For example, HDMI cable can transmit 8K60 video, but the maximum transmission distance is only 3 meters, which greatly limits high definition device image transmission.

The HDMI is transmitted by the balanced balun technology, and only 1080P video can be transmitted. The HDMI can transmit 4K60 video through HDBaseT technology, the delay is zero, but the corresponding data bandwidth is only 18 Gbps; the SDVOE technology can transmit 4K60 HDMI video in real time, and the corresponding data bandwidth is only 18 Gbps.

The market demands a solution that can transmit ultra-high definition video, such as 8K60 video, over long distances.

Disclosure of Invention

Aiming at the problems that in the prior art, the real-time transmission distance of ultra-high-definition videos is short, and the HDMI can not completely transmit the ultra-high-definition videos such as 8K60 videos through an HDBaseT or SDVOE protocol, and the long-distance real-time transmission of the ultra-high-definition videos is severely limited, the ultra-high-definition video transmission method and the system are provided.

An ultra high definition video transmission method, comprising the steps of:

dividing the ultra-high-definition video into a plurality of paths of smaller-bandwidth videos at a sending end;

the multi-path video with smaller bandwidth is remotely transmitted to a receiving end through an HDMI;

and synthesizing the plurality of paths of smaller bandwidths into one path of the ultra-high-definition video at the receiving end.

In a first possible implementation manner, with reference to the ultra-high-definition video transmission method of the present invention, the steps are as follows: the method comprises the following steps of dividing an ultra-high definition video into a plurality of paths of smaller bandwidth videos at a sending end, and comprising the following substeps:

acquiring an ultra-high definition video through an HDMI transmission technology;

and dividing the ultra-high-definition video into two paths of videos with smaller bandwidths.

With reference to the first possible embodiment and the second possible embodiment of the present invention, in a second possible embodiment, the steps of: the method comprises the steps of obtaining the ultra-high-definition video through an HDMI transmission technology, wherein the basic data bandwidth of the ultra-high-definition video exceeds 32 Gbps.

With reference to the first possible embodiment and the third possible embodiment of the present invention, the method includes: the method comprises the following steps of dividing the ultra-high definition video into two paths of videos with smaller bandwidths, and comprising the following substeps:

and dividing the ultra-high-definition video into two paths of videos with equal basic data bandwidth.

In a fourth possible implementation manner, with reference to the ultra-high-definition video transmission method of the present invention, the step includes: the multi-path smaller bandwidth video is remotely transmitted to a receiving end through the HDMI, and the method comprises the following substeps:

transmitting the multi-channel smaller bandwidth video by adopting an HDMI transmission protocol;

encoding the multiple smaller bandwidth videos prior to transmission.

With reference to the fourth possible embodiment and the fifth possible embodiment of the present invention, in a fifth possible embodiment, the steps of: transmitting the multi-channel smaller bandwidth video by adopting an HDMI transmission protocol, wherein the transmission protocol is as follows:

one or more of HDBaseT, SDVOE, AVX.

With reference to the fourth possible embodiment and the sixth possible embodiment of the present invention, in a sixth possible embodiment, the steps of: synthesizing the multiple paths of smaller bandwidths into one path of the ultra-high-definition video at the receiving end, wherein the method comprises the following substeps:

decoding the received multiple paths of smaller bandwidth video;

merging the decoded multiple paths of smaller bandwidth videos into one path of ultra-high definition video;

and transmitting the ultra-high definition video to a display module through an HDMI transmission technology.

With reference to the ultra high definition video transmission method of the present invention, in a seventh possible implementation manner, the ultra high definition video transmission method further includes the steps of:

transmitting the automatic control signal to a receiving end through the HDMI;

and carrying out audio-visual automatic control on the system according to the received automatic control signal.

An ultra high definition video transmission system comprising:

a sending end:

a receiving end;

a multi-path network transmission line;

the transmitting end comprises:

the segmentation unit is used for segmenting one path of ultra-high definition video into a plurality of paths of videos with smaller bandwidths and transmitting the videos to a receiving end in a long distance through the multi-path network transmission line;

an encoding unit; for encoding the multiple smaller bandwidth videos;

the receiving end includes:

a decoding unit for decoding the received multiple paths of smaller bandwidth encoded video;

and the merging unit is used for merging the decoded multiple paths of smaller bandwidth videos into one path of ultra-high definition video and transmitting the ultra-high definition video to the display module through the HDMI for displaying.

In a first possible implementation manner, in combination with the ultra high definition transmission system according to the present invention, the bandwidth of the ultra high definition video is at least 32 Gbps.

According to the ultra-high-definition video transmission method and system, the ultra-high-definition video is divided by arranging the dividing unit at the sending end, and then divided into multiple paths of smaller bandwidth videos which can be transmitted by the existing transmission protocol, then the merging unit is arranged at the receiving end, the decoded multiple paths of smaller bandwidth videos are merged into one path of ultra-high-definition video and transmitted to the display module through the HDMI for display, and the problem that in the prior art, the ultra-high-definition video cannot be completely transmitted by the HDMI through the HDBaseT or SDVOE protocol due to high bandwidth, for example, 8K60 video, and long-distance real-time transmission of the ultra-high-definition video is severely limited is solved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic diagram of a first embodiment of an ultra high definition video transmission method;

fig. 2 is a schematic diagram of a second embodiment of the ultra high definition video transmission method;

FIG. 3 is a diagram of a third embodiment of the ultra high definition video transmission method;

FIG. 4 is a diagram of a fourth embodiment of the ultra high definition video transmission method;

FIG. 5 is a diagram of a fifth embodiment of an ultra high definition video transmission method;

FIG. 6 is a schematic diagram of a first embodiment of an ultra high definition video transmission system;

FIG. 7 is a schematic diagram of a second embodiment of an ultra high definition video transmission system;

the part names indicated by the numbers in the drawings are as follows: 100-transmission system, 110-transmitting end, 111-dividing unit, 112-coding unit, 120-receiving end, 121-decoding unit, 122-merging unit.

Detailed Description

The technical solutions in the present invention will be described clearly and completely with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Other embodiments, which can be derived by one of ordinary skill in the art from the embodiments given herein without any creative effort, shall fall within the protection scope of the present invention.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Aiming at the problems that in the prior art, due to high bandwidth of ultra-high-definition video, HDMI can not completely transmit ultra-high-definition video such as 8K60 video through HDBaseT or SDVOE protocol, and long-distance real-time transmission of the ultra-high-definition video is seriously limited, a method and a system for transmitting the ultra-high-definition video are provided.

An ultra high definition video transmission method, as shown in fig. 1, fig. 1 is a schematic diagram of a first embodiment of the ultra high definition video transmission method; the method comprises the following steps:

s1, dividing the ultra-high definition video into a plurality of paths of videos with smaller bandwidths at the sending end 110;

preferably, as shown in fig. 2, fig. 2 is a schematic diagram of a second embodiment of the ultra high definition video transmission method; step S1 includes the sub-steps of:

s11, acquiring the ultra-high-definition video through an HDMI transmission technology; and S12, dividing the ultra-high-definition video into two paths of videos with smaller bandwidths.

The ultrahigh-definition video is segmented by the segmentation unit 111 arranged at the transmitting end 110, and then is segmented into a plurality of paths of smaller bandwidth videos which can be transmitted by the existing transmission protocol, so that the ultrahigh-definition video long-distance transmission, such as the long-distance transmission of 8k60 videos, is realized.

Preferably, step S12 includes the sub-steps of:

and S121, dividing the ultra-high-definition video into two paths of videos with equal basic data bandwidth. The ultrahigh-definition video can be divided into multiple paths of videos with equal bandwidths and transmitted through an HDMI transmission technology, and the ultrahigh-definition multiple paths of videos with different bandwidths can also be transmitted, wherein the more the division paths are, the less the bandwidth required by the HDMI transmission technology is.

Preferably, the transmission protocol is one or more of HDBaseT, SDVOE, AVX.

Preferably, the basic data bandwidth of the ultra-high definition video exceeds 32 Gbps.

S2, transmitting the multipath smaller bandwidth video to the receiving end 120 through HDMI in a long distance;

preferably, as shown in fig. 3, fig. 3 is a schematic diagram of a third embodiment of the ultra high definition video transmission method; step S2 includes the sub-steps of:

s21, transmitting a plurality of paths of smaller bandwidth videos by adopting an HDMI transmission protocol; s22, encoding the multiple smaller bandwidth videos before transmission.

And S3, synthesizing the multiple paths of smaller bandwidths into a path of ultra high definition video at the receiving end 120.

Preferably, as shown in fig. 4, fig. 4 is a schematic diagram of a fourth embodiment of the ultra high definition video transmission method; step S3 includes the sub-steps of:

s31, decoding the received multiple paths of smaller bandwidth videos; s32, combining the decoded multiple paths of smaller bandwidth videos into one path of ultra high definition video; and S33, transmitting the ultra-high-definition video to a display module through an HDMI transmission technology.

The basic principle of the synthesis segmentation is that taking the ultra high definition video 8K60 as an example, the total bandwidth of the 8K60 video is 32 Gbps: first, the 8K60 video is divided by the division unit 111 into 2 videos at 16Gbps or a plurality of videos at smaller bandwidths, with a total data bandwidth of 32 Gbps.

Next, the divided multiple channels of videos are encoded by the encoding unit 112 and are transmitted in an extended manner through HDMI transmission technologies, such as HDBaseT protocol, SDVOE protocol, or AVX protocol. If the data is divided into 2 pieces of 16Gbps, a total of 2 paths of HDBaseT technology is needed for video transmission.

Finally, the video transmitted by the HDBaseT extension for 2 channels is decoded by the decoding unit 121 and then combined by the combining unit 122 at the video receiving end 120. And the video is combined into 8K60 video with the total bandwidth of 1 path of 32 Gbps.

Through the 3 steps, the extended transmission of the 8K60 video can be realized.

Preferably, as shown in fig. 5, fig. 5 is a schematic diagram of a fifth embodiment of the ultra high definition video transmission method; the ultra high definition video transmission method further comprises the following steps:

s4, transmitting the automatic control signal to a receiving end through the HDMI; and S5, performing audio-visual automatic control on the system according to the received automatic control signal.

An ultra high definition video transmission system 100, as shown in fig. 6, fig. 6 is a schematic diagram of a first embodiment of the ultra high definition video transmission system 100; the method comprises the following steps: a transmitting end 110, a receiving end 120, and a multi-path network transmission line; the transmitting end 110 includes a dividing unit 111, configured to divide one path of ultra high definition video into multiple paths of videos with smaller bandwidths, and transmit the videos to the receiving end 120 in a long distance through a multiple path network transmission line; an encoding unit 112; for encoding multiple smaller bandwidth videos;

fig. 7 is a schematic diagram of a second embodiment of the ultra high definition video transmission system 100, as shown in fig. 7; the receiving end 120 includes a decoding unit 121 for decoding the received multiple paths of smaller bandwidth coded video; and the merging unit 122 is configured to merge the decoded multiple paths of smaller bandwidth videos into one path of ultra-high definition video, and transmit the ultra-high definition video to the display module through the HDMI for display.

Dividing the ultra-high definition video into a plurality of paths of smaller bandwidth videos at a sending end 110; acquiring an ultra-high definition video through an HDMI transmission technology; and dividing the ultra-high definition video into two paths of videos with smaller bandwidths. The ultrahigh-definition video is segmented by the segmentation unit 111 arranged at the transmitting end 110, and then is segmented into a plurality of paths of smaller bandwidth videos which can be transmitted by the existing transmission protocol, so that the ultrahigh-definition video long-distance transmission, such as the long-distance transmission of 8k60 videos, is realized.

And dividing the ultra-high-definition video into two paths of videos with equal basic data bandwidth. The ultrahigh-definition video can be divided into multiple paths of videos with equal bandwidths and transmitted through an HDMI transmission technology, and the ultrahigh-definition multiple paths of videos with different bandwidths can also be transmitted, wherein the more the division paths are, the less the bandwidth required by the HDMI transmission technology is.

Transmitting the multiple paths of smaller bandwidth videos to the receiving end 120 through the HDMI over a long distance; transmitting a plurality of paths of videos with smaller bandwidths by adopting an HDMI transmission protocol; multiple smaller bandwidth videos are encoded prior to transmission.

And synthesizing the multiple paths of smaller bandwidths into one path of ultra high definition video at the receiving end 120. Decoding the received multiple paths of smaller bandwidth videos; combining the decoded multiple paths of smaller bandwidth videos into one path of ultra-high definition video; and transmitting the ultra-high definition video through the HDMI transmission display module.

Taking the ultra high definition video 8K60 video as an example, the total bandwidth of the 8K60 video is 32 Gbps: first, the 8K60 video is divided by the division unit 111 into 2 videos at 16Gbps or a plurality of videos at smaller bandwidths, with a total data bandwidth of 32 Gbps.

Next, the divided multiple channels of videos are encoded by the encoding unit 112 and are transmitted in an extended manner through HDMI transmission technologies, such as HDBaseT protocol, SDVOE protocol, or AVX protocol. If the data is divided into 2 pieces of 16Gbps, a total of 2 paths of HDBaseT technology is needed for video transmission.

Finally, the video transmitted by the HDBaseT extension for 2 channels is decoded by the decoding unit 121 and then combined by the combining unit 122 at the video receiving end 120. And the video is combined into 8K60 video with the total bandwidth of 1 path of 32 Gbps. Thereby realizing the extended transmission of the 8K60 video.

The ultra-high definition video transmission method can also transmit the automatic control signal to a receiving end through the HDMI and carry out audio-visual automatic control on the system according to the received automatic control signal.

According to the ultra-high-definition video transmission method and system, the segmentation unit 111 is arranged at the sending end 110 to segment ultra-high-definition videos, the ultra-high-definition videos are further segmented into multiple paths of videos with smaller bandwidths which can be transmitted by the existing transmission protocol, then the merging unit 122 is arranged at the receiving end 120, the multiple paths of decoded videos with smaller bandwidths are merged into one path of ultra-high-definition videos, and the ultra-high-definition videos are transmitted to the display module through the HDMI to be displayed, so that the problem that in the prior art, due to the fact that the ultra-high-definition videos are high in bandwidth, the ultra-high-definition videos cannot be completely transmitted through the HDBaseT or SDVOE protocol, for example, 8K60 videos, and long-distance real-time transmission of the ultra-high-definition videos is severely limited is solved.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalent replacements, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.