CN113709427A - 4K60 and 4K30 video compatible transmission and synchronization method based on non-4K 60 system - Google Patents
4K60 and 4K30 video compatible transmission and synchronization method based on non-4K 60 system Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/22—Adaptations for optical transmission
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/01—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level
- H04N7/0117—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level involving conversion of the spatial resolution of the incoming video signal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/01—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level
- H04N7/0127—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level by changing the field or frame frequency of the incoming video signal, e.g. frame rate converter
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Abstract
The invention belongs to the technical field of video transmission, and particularly relates to a 4K60 and 4K30 video compatible transmission and synchronization method based on a non-4K 60 system, aiming at solving the problem that the prior art can not realize compatible transmission and synchronization of 4K60 and 4K30 format videos on the premise of not carrying out large system transformation. The invention comprises the following steps: adding a 4K60 sending node and/or a 4K60 receiving node in the KVM seating system; if the video to be transmitted is in a 4K30 format, the video is sent to any path of optical fiber transmission through a 4K30 sending node and received through a corresponding 4K30 receiving node; if the video to be transmitted is in a 4K60 format, after video frame serial number marking and odd-even frame framing are carried out, even frames and odd frames are respectively transmitted through any two paths of light rays, the even frames and the odd frames are combined at a receiving node according to the frame serial number marking, and the even frames and the odd frames are received through a 4K60 receiving node. The invention can realize compatible transmission and synchronization of 4K60 and 4K30 format videos only under the condition of adding 4K60 nodes without greatly improving the system.
Description
Technical Field
The invention belongs to the technical field of video transmission, and particularly relates to a 4K60 and 4K30 video compatible transmission and synchronization method based on a non-4K 60 system.
Background
Most of the existing optical fiber seat systems adopt a single optical fiber for video signal transmission, and the video signal of the existing optical fiber seat systems can only be a video signal of 4K30 at most, and for a video signal of 4K60, different methods are adopted for processing according to the current hardware capacity:
if the current hardware capability can meet the access of 4K60, a higher transmission bandwidth, for example 10G or higher, is needed, which requires a great deal of replacement of optical modules or optical fibers, and at the same time, upgrading the hardware program to support 4K 60;
if the current hardware capability cannot meet the access of 4K60, the hardware board card needs to be replaced.
However, the above methods all require great modification of the system, which is time-consuming and labor-consuming, and cannot realize compatible transmission of 4K60 and 4K30 videos, and there is still a great need in the art for a method that can realize compatible transmission and synchronization of 4K60 and 4K30 videos on the existing hardware system.
Disclosure of Invention
In order to solve the above problems in the prior art, that is, the prior art cannot realize compatible transmission and synchronization of 4K60 and 4K30 formatted videos without performing large system modification, the present invention provides a 4K60 and 4K30 video compatible transmission method based on a non-4K 60 system, the video compatible transmission method includes:
step S10, adding a 4K60 sending node at the computer or server end of the KVM seat system, and adding a 4K60 receiving node at the seat or display end;
step S20, if the current video to be transmitted is in the 4K30 format, jumping to step S30; if the current video to be transmitted is in the format of 4K60, jumping to the step S40;
step S30, the video to be transmitted is sent to any path of optical fiber transmission through a 4K30 sending node, and the video to be transmitted is received through a corresponding 4K30 receiving node;
step S40, the video to be transmitted is transmitted through the 4K60 transmitting node, and the frame sequence number of the video to be transmitted is marked as 1,2, …,nmarking even frames as even frames and odd frames as odd frames;
and step S50, respectively transmitting the even frames and the odd frames through any two paths of optical fibers, merging the even frames and the odd frames at a receiving node according to the frame sequence number marks of the video to be transmitted, and receiving the merged video through a 4K60 receiving node.
In some preferred embodiments, the video compatible transmission method further comprises a 4K60 format video input to 4K30 format output method:
and the receiving node receives only the optical fiber transmission data corresponding to the even frame or the odd frame through the 4K30, and the frame dropping transmission of the video to be transmitted is completed.
In some preferred embodiments, the video compatible transmission method further comprises a 4K30 format video input to 4K60 format output method:
after each current frame of the video to be transmitted is copied, inserting the copied current frame before/after the current frame as a previous frame/a next frame of the current frame, and receiving the video to be transmitted through a corresponding 4K60 receiving node.
In another aspect of the present invention, a 4K60 and 4K30 video synchronization method based on a non-4K 60 system is provided, and a 4K60 and 4K30 video compatible transmission method based on the non-4K 60 system includes:
step A10, a plurality of paths of 4K60 format videos to be synchronously transmitted exist in the KVM seat system, and after the 4K60 sending node splits each video to be synchronously transmitted, a time difference of one frame may exist in the video picture display to be synchronized when the 4K30 receiving node receives the video, and a synchronization generator needs to be added in the KVM seat system to ensure the synchronization of the 4K30 nodes;
step A20, taking any path of 4K60 format video as a synchronization source of a synchronization generator, sending a uniform synchronization instruction by the synchronization generator based on the vertical synchronization information of an input signal, and sending the synchronization instruction to each video to be synchronously transmitted;
step A30, each 4K60 sending node sends the corresponding video to be synchronously transmitted based on the synchronous command, and marks the frame sequence number of each video to be synchronously transmitted as 1,2, …,nframes, and even frames in the frames are marked as even frames to be synchronized, and odd frames are marked as odd frames to be synchronized;
step A40, the even frame to be synchronized and the odd frame to be synchronized are transmitted through any two paths of optical fibers respectively, the even frame to be synchronized and the odd frame to be synchronized are merged at a receiving node according to the frame sequence number of the video to be transmitted, and the merged video is received through a corresponding 4K60 receiving node.
In some preferred embodiments, the video synchronization method further comprises a 4K60 format video input to 4K30 format synchronization transmission method:
and the receiving node of 4K30 only receives the optical fiber transmission data corresponding to the even frame or odd frame to be synchronized, and completes the frame dropping synchronous transmission of the video to be synchronously transmitted.
In a third aspect of the present invention, a 4K60 and 4K30 video compatible transmission system based on a non-4K 60 system is provided, the video compatible transmission system includes the following modules:
the node adding module is configured to add a 4K60 sending node at a computer or server end of the KVM seat system and add a 4K60 receiving node at a seat or display end;
the video format judgment module to be transmitted is configured to skip the 4K30 transmission module if the current video to be transmitted is in the 4K30 format; if the current video to be transmitted is in a 4K60 format, jumping to a first video framing module;
the 4K30 transmission module is configured to transmit the video to be transmitted to any path of optical fiber through a 4K30 transmission node, and receive the video to be transmitted through a corresponding 4K30 receiving node;
a first video framing module, configured to transmit the video to be transmitted through a 4K60 transmitting node, and mark the frame sequence number of the video to be transmitted as 1,2, …,nthe frames are marked as even frames and odd framesRecording as an odd frame;
and the 4K60 transmission module is configured to transmit the even frames and the odd frames through any two paths of optical fibers, merge the even frames and the odd frames at a receiving node according to the frame sequence number marks of the video to be transmitted, and receive the merged video through a 4K60 receiving node.
In a fourth aspect of the present invention, a 4K60 and 4K30 video synchronization system based on a non-4K 60 system is provided, and a 4K60 and 4K30 video compatible transmission system based on the non-4K 60 system is provided, wherein the video synchronization system includes the following modules:
the synchronization configuration module is configured to configure that multiple paths of videos to be synchronously transmitted in a 4K60 format, which need to be synchronized, exist in the KVM seat system, after a 4K60 sending node splits each video to be synchronously transmitted, a time difference of one frame may exist in a video picture display, which needs to be synchronized, when a 4K30 receiving node receives the video, and a synchronization generator needs to be added in the KVM seat system to ensure that the 4K30 nodes are synchronized;
the synchronous sending module is configured to use any path of 4K60 format video as a synchronous source of the synchronous generator, unify synchronous instructions by the synchronous generator based on the vertical synchronous information of the input signal, and send the synchronous instructions to each video to be synchronously transmitted;
a second video framing module configured to send, by each of the 4K60 sending nodes, a corresponding video to be synchronously transmitted based on the synchronization instruction, and mark the frame number of each video to be synchronously transmitted as 1,2, …,nframes, and even frames in the frames are marked as even frames to be synchronized, and odd frames are marked as odd frames to be synchronized;
and the synchronous transmission module is configured to transmit the even frames to be synchronized and the odd frames to be synchronized through any two paths of optical fibers, merge the even frames to be synchronized and the odd frames to be synchronized at a receiving node according to the frame sequence number marks of the videos to be transmitted, and receive the merged videos through the corresponding 4K60 receiving node.
In a fifth aspect of the present invention, an electronic device is provided, including:
at least one processor; and
a memory communicatively coupled to at least one of the processors; wherein the content of the first and second substances,
the memory stores instructions executable by the processor to implement the non-4K 60 system based 4K60 and 4K30 video compatible transmission method described above, or the non-4K 60 system based 4K60 and 4K30 video synchronization method.
In a fourth aspect of the present invention, a computer-readable storage medium is provided, which stores computer instructions for execution by the computer to implement the above-mentioned 4K60 and 4K30 video compatible transmission method based on the non-4K 60 system, or the 4K60 and 4K30 video synchronization method based on the non-4K 60 system.
The invention has the beneficial effects that:
(1) the invention is based on 4K60 and 4K30 video compatible transmission method of non-4K 60 system, in the original non-4K 60 photoelectric matrix, without much transformation, only by adding the transmitting node and receiving node supporting 4K60, using the manner of parity frame binding, the 4K60 transmitting node divides the 4K60 signal source into parity frames to be transmitted on 2 optical fibers respectively, then the 4K60 receiving node combines and outputs the parity frames of 4K60 signal on 2 optical fibers, and also can perform frame dropping output from 4K60 format to 4K30 format and frame expanding output from 4K30 format to 4K60 format, solving the method of coexistence and compatibility of higher resolution and existing resolution equipment, without great improvement of the existing system, low cost, simple and effective operation method.
(2) According to the 4K60 and 4K30 video synchronization method based on the non-4K 60 system, vertical synchronization of 4K60 videos to be transmitted synchronously can be performed under the synchronous signals generated by a synchronization generator only by adding the synchronization generator at a sending node, so that frames at the same moment are split into the same channel according to the synchronization instruction of the system, and synchronous transmission of the 4K60 videos to be transmitted synchronously is achieved.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:
FIG. 1 is a flow chart of the 4K60 and 4K30 video compatible transmission method based on non-4K 60 system according to the present invention;
FIG. 2 is a schematic diagram of the composition of a KVM seat system based on one embodiment of the 4K60 and 4K30 video compatible transmission method of the present invention for non-4K 60 system;
FIG. 3 is a schematic view of video splitting according to an embodiment of the present invention based on 4K60 and 4K30 video compatible transmission methods of non-4K 60 system;
FIG. 4 is a diagram illustrating a time difference of one frame between two video frames displayed by one embodiment of the 4K60 and 4K30 video synchronization method based on non-4K 60 system according to the present invention;
fig. 5 is a schematic diagram of synchronous transmission of one embodiment of the 4K60 and 4K30 video synchronization method based on the non-4K 60 system.
Detailed Description
The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not restrictive of the invention. It should be noted that, for convenience of description, only the portions related to the related invention are shown in the drawings.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
The invention discloses a 4K60 and 4K30 video compatible transmission method based on a non-4K 60 system, which comprises the following steps:
step S10, adding a 4K60 sending node at the computer or server end of the KVM seat system, and adding a 4K60 receiving node at the seat or display end;
step S20, if the current video to be transmitted is in the 4K30 format, jumping to step S30; if the current video to be transmitted is in the format of 4K60, jumping to the step S40;
step S30, the video to be transmitted is sent to any path of optical fiber transmission through a 4K30 sending node, and the video to be transmitted is received through a corresponding 4K30 receiving node;
step S40, the video to be transmitted is transmitted through the 4K60 transmitting node, and the frame sequence number of the video to be transmitted is marked as 1,2, …,nmarking even frames as even frames and odd frames as odd frames;
and step S50, respectively transmitting the even frames and the odd frames through any two paths of optical fibers, merging the even frames and the odd frames at a receiving node according to the frame sequence number marks of the video to be transmitted, and receiving the merged video through a 4K60 receiving node.
The most intuitive application scene of the seat system is that a plurality of host computers of a remote machine room are controlled on a workbench (or called a seat) through a set of keyboard and mouse, so that man-machine separation is realized, the host computers are arranged in a centralized manner, and the safety is ensured.
As shown in fig. 2, a schematic view of a KVM seat system with an optical-electrical matrix according to an embodiment of the present invention based on 4K60 and 4K30 video compatible transmission methods of a non-4K 60 system is shown, the KVM seat system with an optical-electrical matrix mainly includes a transmitting node, a receiving node and an optical-electrical matrix, wherein the transmitting node is connected to a keyboard and mouse controllable device such as a computer; the receiving nodes are connected with a display, a plurality of receiving nodes form a seat, a keyboard and mouse are connected to one of the receiving nodes, and a set of keyboard and mouse is used for controlling and managing signal sources on a plurality of screens; the photoelectric matrix is mainly responsible for switching data paths between the transmitting node and the receiving node. The working principle of the KVM seating system of the photoelectric matrix is as follows:
firstly, a switching request is sent to a photoelectric matrix host machine through an OSD menu on a receiving node or upper computer software, and a data transmission channel between a sending node connected with a computer to be controlled and the receiving node to display the computer video is gated.
Then, the video data of the computer is transmitted from the sending node to the receiving node through the photoelectric matrix host, and the receiving node displays the video data on a display.
Meanwhile, the receiving node can collect keyboard and mouse data, the keyboard and mouse data are transmitted to the sending node from the receiving node through the photoelectric matrix host, and the sending node is transmitted to the computer, so that the function of controlling the computer by the mouse is achieved.
If a computer to be controlled needs to be replaced, the OSD menu or the upper computer software on the receiving node is used again, and a switching request, namely a set of keyboard and mouse, is sent to the photoelectric matrix host to control a plurality of hosts.
In the existing optical-electrical matrix KVM seat system, a common method is to use one path of optical fiber to transmit one path of video signal, which supports 4K30 at most, but if the system wants to expand the capacity of a signal source supporting 4K60, according to the scheme of transmitting one path of video signal by one path of optical fiber, the bandwidth cannot meet the requirement, and the optical module or optical fiber with high bandwidth needs to be replaced; if the capability of the hardware does not meet the capability of 4K60, the hardware with higher capability needs to be replaced to support 4K 60.
In order to more clearly describe the 4K60 and 4K30 video compatible transmission method based on the non-4K 60 system, the following describes the steps in the embodiment of the present invention in detail with reference to fig. 1.
The 4K60 and 4K30 video compatible transmission method based on the non-4K 60 system in the first embodiment of the present invention includes steps S10-S50, each of which is described in detail as follows:
in step S10, a 4K60 sending node is added to the computer or server of the KVM agent system, and a 4K60 receiving node is added to the agent or display.
The KVM seat system needs to add a 4K60 sending node to realize the transmission of the 4K60 format video, the 4K60 receiving nodes can be added or not added, if no 4K60 receiving node exists, the frame-down output display of the 4K60 format video can be carried out, if a 4K60 receiving node exists and the 4K60 format video receiving and displaying are needed, the split 4K60 format video can be merged and then received and displayed.
Step S20, if the current video to be transmitted is in the 4K30 format, jumping to step S30; if the video to be transmitted is in the format of 4K60, go to step S40.
And step S30, sending the video to be transmitted to any path of optical fiber transmission through the 4K30 sending node, and receiving the video to be transmitted through the corresponding 4K30 receiving node.
The transmission of the 4K30 format video can be along the transmission of the original system, or the 4K30 format video can be received and displayed by a 4K60 receiving node after being subjected to frame expansion.
Step S40, the video to be transmitted is transmitted through the 4K60 transmitting node, and the frame sequence number of the video to be transmitted is marked as 1,2, …,nand marking even frames as even frames and odd frames as odd frames.
As shown in fig. 3, which is a schematic view of video splitting according to an embodiment of the present invention based on 4K60 and 4K30 video compatible transmission methods of non-4K 60 system, after the 4K60 format video is input, the sequence number of each frame is marked as 1,2,3,4,5,6,7,8 …, and the frame is split into odd-even frames 1,3,5,7 … and 2,4,6,8 …, if the 4K30 output is output, only the odd frame 1,3,5,7 … or only the even frame 2,4,6,8 … is taken, if the 4K60 output is output, the 4K30 odd-even frame is merged into 1,2,3,4,5,6,7,8 … of 4K60 and then output.
And step S50, respectively transmitting the even frames and the odd frames through any two paths of optical fibers, merging the even frames and the odd frames at a receiving node according to the frame sequence number marks of the video to be transmitted, and receiving the merged video through a 4K60 receiving node.
The video compatible transmission method also comprises a method for converting 4K60 format video input into 4K30 format output:
and the receiving node receives only the optical fiber transmission data corresponding to the even frame or the odd frame through the 4K30, and the frame dropping transmission of the video to be transmitted is completed.
The video compatible transmission method also comprises a method for converting 4K30 format video input into 4K60 format output:
after each current frame of the video to be transmitted is copied, inserting the copied current frame before/after the current frame as a previous frame/a next frame of the current frame, and receiving the video to be transmitted through a corresponding 4K60 receiving node.
In practical application, if the receiving node does not have the receiving capability of 4K60 signals, only 1 path of optical fiber signals are taken for display; if the receiving node has the receiving capability of 4K60 signal, the 2-path optical fiber signals are all received and then combined and output. Therefore, under the condition that the original receiving node is not changed, the signal of 4K60 can be displayed, and the frame is reduced to 4K 30; for the newly added 4K60 receiving node, the 4K60 signal can be displayed normally, and for the original signal which is not 4K60, the compatible display can be realized.
The method for synchronizing 4K60 and 4K30 videos based on a non-4K 60 system in the second embodiment of the present invention is based on the above-mentioned method for compatible transmission of 4K60 and 4K30 videos based on a non-4K 60 system, and the method for synchronizing videos includes:
step a10, multiple paths of videos to be transmitted synchronously in 4K60 format that need to be synchronized exist in the KVM seat system, after the 4K60 sending node splits each video to be transmitted synchronously, a time difference of one frame may exist in the display of the video image that needs to be synchronized when the 4K30 receiving node receives the video, and a synchronization generator needs to be added in the KVM seat system to ensure the synchronization of the 4K30 nodes.
When multiple paths of 4K60 signals needing synchronization are divided into odd and even frames and transmitted in the original system, a synchronous signal source is divided by different 4K60 sending nodes, and a situation occurs, wherein the frames at the same moment can be divided into odd frame channels and even frame channels, and have randomness.
If the above situation occurs, the problem of non-synchronization occurs when the receiving node with 30 frame rate in the original system displays, that is, the video frames that need to be synchronized when the receiving node of 4K30 receives video may have a time difference of one frame, and at this time, a sync generator needs to be added in the KVM seat system to ensure the synchronization of the 4K30 nodes.
As shown in fig. 4, for an embodiment of the present invention based on 4K60 and 4K30 video synchronization methods of non-4K 60 system, two 4K60 videos are to be transmitted synchronously, a 4K60 format video of CH0 channel and a 4K60 format video of CH1 channel, for the video of each channel, the sequence numbers of each frame are respectively labeled as CH0:1,2,3,4,5,6,7,8 … and CH1:1,2,3,4,5,6,7,8 …, and are respectively split into odd-even frames CH0:1,3,5,7 … 7 and CH0:2,4,6,8 … and CH …:1,3,5,7 …:2,4,6,8 …, if 4K … is output, the CH … channel only takes CH1, 3,4, 6,8, or only takes CH …, or only CH …,3,5,7 … or only even frame CH1:2,4,6,8 …, when odd frame CH0:1,3,5,7 …, CH1 channel is taken as even frame CH1:2,4,6,8 … or even frame CH0:2,4,6,8 … channel CH0 channel is taken as even frame CH0:2,4,6,8 …, CH1 channel is taken as odd frame CH1:1,3,5,7 …, a time difference of one frame will appear between the videos, and the two can not be synchronized.
And A20, taking any path of 4K60 format video as a synchronization source of a synchronization generator, sending a uniform synchronization instruction by the synchronization generator based on the vertical synchronization information of the input signal, and sending the synchronization instruction to each video to be synchronously transmitted.
Step A30, each 4K60 sending node sends the corresponding video to be synchronously transmitted based on the synchronous command, and marks the frame sequence number of each video to be synchronously transmitted as 1,2, …,nand marking the even frames as the even frames to be synchronized, and marking the odd frames as the odd frames to be synchronized.
Step A40, the even frame to be synchronized and the odd frame to be synchronized are transmitted through any two paths of optical fibers respectively, the even frame to be synchronized and the odd frame to be synchronized are merged at a receiving node according to the frame sequence number of the video to be transmitted, and the merged video is received through a corresponding 4K60 receiving node.
In practical application, for synchronously input 4K60 video signals, according to the vertical synchronization of the input signals, a uniform synchronization instruction is generated by a synchronization generator of the system and is sent to each 4K60 sending node, so that frames at the same time are split into the same channel according to the synchronization instruction of the system.
As shown in fig. 5, for a schematic diagram of synchronous transmission of an embodiment of the 4K60 and 4K30 video synchronization method based on a non-4K 60 system, two 4K60 videos are to be synchronously transmitted, a 4K60 format video of a CH0 channel and a 4K60 format video of a CH1 channel are respectively numbered for the video of each channel as CH0:1,2,3,4,5,6,7,8 … and CH …:1,2,3,4,5,6,7,8 …, respectively split into odd-even frames CH …:1,3,5,7 … and CH …:2,4,6,8 …, and CH …:1,3,5,7 … and CH …:2,4,6,8 …, if the output is made by the CH … channel, the CH … channel only takes CH …:1, CH 3, CH 5, CH 7, CH …:2,4,6,8 …, or only takes CH …, CH …: …, or only odd-even-frames, 4,6,8 …, and the synchronous signal generated by the synchronous generator is used to make the vertical synchronization of the video, so that when the CH0 channel takes odd frames CH0:1,3,5,7 …, the CH1 channel also takes odd frames CH1:1,3,5,7 …, and when the CH0 channel takes even frames CH0:2,4,6,8 …, the CH1 channel also takes even frames CH1:2,4,6,8 …, the time difference of one frame between the videos can be avoided, and the synchronization of the videos can be realized.
Although the foregoing embodiments describe the steps in the above sequential order, those skilled in the art will understand that, in order to achieve the effect of the present embodiments, the steps may not be executed in such an order, and may be executed simultaneously (in parallel) or in an inverse order, and these simple variations are within the scope of the present invention.
A 4K60 and 4K30 video compatible transmission system based on a non-4K 60 system of a third embodiment of the present invention includes the following modules:
the node adding module is configured to add a 4K60 sending node at a computer or server end of the KVM seat system and add a 4K60 receiving node at a seat or display end;
the video format judgment module to be transmitted is configured to skip the 4K30 transmission module if the current video to be transmitted is in the 4K30 format; if the current video to be transmitted is in a 4K60 format, jumping to a first video framing module;
the 4K30 transmission module is configured to transmit the video to be transmitted to any path of optical fiber through a 4K30 transmission node, and receive the video to be transmitted through a corresponding 4K30 receiving node;
a first video framing module, configured to transmit the video to be transmitted through a 4K60 transmitting node, and mark the frame sequence number of the video to be transmitted as 1,2, …,nmarking even frames as even frames and odd frames as odd frames;
and the 4K60 transmission module is configured to transmit the even frames and the odd frames through any two paths of optical fibers, merge the even frames and the odd frames at a receiving node according to the frame sequence number marks of the video to be transmitted, and receive the merged video through a 4K60 receiving node.
The 4K60 and 4K30 video synchronization system based on the non-4K 60 system according to the fourth embodiment of the present invention is based on the above-mentioned 4K60 and 4K30 video compatible transmission system based on the non-4K 60 system, and the video synchronization system includes the following modules:
the synchronization configuration module is configured to configure that multiple paths of videos to be synchronously transmitted in a 4K60 format, which need to be synchronized, exist in the KVM seat system, after a 4K60 sending node splits each video to be synchronously transmitted, a time difference of one frame may exist in a video picture display, which needs to be synchronized, when a 4K30 receiving node receives the video, and a synchronization generator needs to be added in the KVM seat system to ensure that the 4K30 nodes are synchronized;
the synchronous sending module is configured to use any path of 4K60 format video as a synchronous source of the synchronous generator, unify synchronous instructions by the synchronous generator based on the vertical synchronous information of the input signal, and send the synchronous instructions to each video to be synchronously transmitted;
a second video framing module configured to send, by each of the 4K60 sending nodes, a corresponding video to be synchronously transmitted based on the synchronization instruction, and mark the frame number of each video to be synchronously transmitted as 1,2, …,nframes, and even frames in the frames are marked as even frames to be synchronized, and odd frames are marked as odd frames to be synchronized;
and the synchronous transmission module is configured to transmit the even frames to be synchronized and the odd frames to be synchronized through any two paths of optical fibers, merge the even frames to be synchronized and the odd frames to be synchronized at a receiving node according to the frame sequence number marks of the videos to be transmitted, and receive the merged videos through the corresponding 4K60 receiving node.
It can be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working process and related description of the system described above may refer to the corresponding process in the foregoing method embodiments, and will not be described herein again.
It should be noted that, the 4K60 and 4K30 video compatible transmission systems based on the non-4K 60 system and the 4K60 and 4K30 video synchronization systems based on the non-4K 60 system provided in the foregoing embodiments are only exemplified by the division of the above functional modules, and in practical applications, the above function distribution may be completed by different functional modules according to needs, that is, the modules or steps in the embodiments of the present invention are further decomposed or combined, for example, the modules in the foregoing embodiments may be combined into one module, or may be further split into multiple sub-modules, so as to complete all or part of the functions described above. The names of the modules and steps involved in the embodiments of the present invention are only for distinguishing the modules or steps, and are not to be construed as unduly limiting the present invention.
An electronic apparatus according to a fifth embodiment of the present invention includes:
at least one processor; and
a memory communicatively coupled to at least one of the processors; wherein the content of the first and second substances,
the memory stores instructions executable by the processor to implement the non-4K 60 system based 4K60 and 4K30 video compatible transmission method described above, or the non-4K 60 system based 4K60 and 4K30 video synchronization method.
A computer-readable storage medium of a sixth embodiment of the present invention stores computer instructions for execution by the computer to implement the above-described 4K60 and 4K30 video compatible transmission method based on the non-4K 60 system, or 4K60 and 4K30 video synchronization method based on the non-4K 60 system.
It can be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working processes and related descriptions of the storage device and the processing device described above may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
Those of skill in the art would appreciate that the various illustrative modules, method steps, and modules described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that programs corresponding to the software modules, method steps may be located in Random Access Memory (RAM), memory, Read Only Memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art. To clearly illustrate this interchangeability of electronic hardware and software, various illustrative components and steps have been described above generally in terms of their functionality. Whether such functionality is implemented as electronic hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
The terms "first," "second," and the like are used for distinguishing between similar elements and not necessarily for describing or implying a particular order or sequence.
The terms "comprises," "comprising," or any other similar term are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can fall into the protection scope of the invention.
Claims (9)
1. A4K 60 and 4K30 video compatible transmission method based on a non-4K 60 system is characterized by comprising the following steps:
step S10, adding a 4K60 sending node at the computer or server end of the KVM seat system, and adding a 4K60 receiving node at the seat or display end;
step S20, if the current video to be transmitted is in the 4K30 format, jumping to step S30; if the current video to be transmitted is in the format of 4K60, jumping to the step S40;
step S30, the video to be transmitted is sent to any path of optical fiber transmission through a 4K30 sending node, and the video to be transmitted is received through a corresponding 4K30 receiving node;
step S40, the video to be transmitted is transmitted through the 4K60 transmitting node, and the frame sequence number of the video to be transmitted is marked as 1,2, …,nmarking even frames as even frames and odd frames as odd frames;
and step S50, respectively transmitting the even frames and the odd frames through any two paths of optical fibers, merging the even frames and the odd frames at a receiving node according to the frame sequence number marks of the video to be transmitted, and receiving the merged video through a 4K60 receiving node.
2. The non-4K 60 system-based 4K60 and 4K30 video compatible transmission method according to claim 1, wherein the video compatible transmission method further comprises a 4K60 format video input to 4K30 format output method:
and the receiving node receives only the optical fiber transmission data corresponding to the even frame or the odd frame through the 4K30, and the frame dropping transmission of the video to be transmitted is completed.
3. The non-4K 60 system-based 4K60 and 4K30 video compatible transmission method according to claim 1, wherein the video compatible transmission method further comprises a 4K30 format video input to 4K60 format output method:
after each current frame of the video to be transmitted is copied, inserting the copied current frame before/after the current frame as a previous frame/a next frame of the current frame, and receiving the video to be transmitted through a corresponding 4K60 receiving node.
4. A 4K60 and 4K30 video synchronization method based on non-4K 60 system, wherein the video synchronization method based on 4K60 and 4K30 video compatible transmission method based on non-4K 60 system of any claim 1-3, the video synchronization method comprises:
step A10, if there are multiple paths of 4K60 format videos to be transmitted synchronously in the KVM seat system, adding a synchronous generator in the KVM seat system;
step A20, taking any path of 4K60 format video as a synchronization source of a synchronization generator, sending a uniform synchronization instruction by the synchronization generator based on the vertical synchronization information of an input signal, and sending the synchronization instruction to each video to be synchronously transmitted;
step A30, each 4K60 sending node sends the corresponding video to be synchronously transmitted based on the synchronous command, and marks the frame sequence number of each video to be synchronously transmitted as 1,2, …,nframes, and even frames in the frames are marked as even frames to be synchronized, and odd frames are marked as odd frames to be synchronized;
step A40, the even frame to be synchronized and the odd frame to be synchronized are transmitted through any two paths of optical fibers respectively, the even frame to be synchronized and the odd frame to be synchronized are merged at a receiving node according to the frame sequence number of the video to be transmitted, and the merged video is received through a corresponding 4K60 receiving node.
5. The non-4K 60 system-based 4K60 and 4K30 video synchronization method as claimed in claim 4, wherein the video synchronization method further comprises a 4K60 format video input to 4K30 format synchronization transmission method:
and the receiving node of 4K30 only receives the optical fiber transmission data corresponding to the even frame or odd frame to be synchronized, and completes the frame dropping synchronous transmission of the video to be synchronously transmitted.
6. A 4K60 and 4K30 video compatible transmission system based on a non-4K 60 system, characterized in that the video compatible transmission system comprises the following modules:
the node adding module is configured to add a 4K60 sending node at a computer or server end of the KVM seat system and add a 4K60 receiving node at a seat or display end;
the video format judgment module to be transmitted is configured to skip the 4K30 transmission module if the current video to be transmitted is in the 4K30 format; if the current video to be transmitted is in a 4K60 format, jumping to a first video framing module;
the 4K30 transmission module is configured to transmit the video to be transmitted to any path of optical fiber through a 4K30 transmission node, and receive the video to be transmitted through a corresponding 4K30 receiving node;
a first video framing module, configured to transmit the video to be transmitted through a 4K60 transmitting node, and mark the frame sequence number of the video to be transmitted as 1,2, …,nmarking even frames as even frames and odd frames as odd frames;
and the 4K60 transmission module is configured to transmit the even frames and the odd frames through any two paths of optical fibers, merge the even frames and the odd frames at a receiving node according to the frame sequence number marks of the video to be transmitted, and receive the merged video through a 4K60 receiving node.
7. A 4K60 and 4K30 video synchronization system based on the non-4K 60 system, wherein the video synchronization system based on the 4K60 and 4K30 video compatible transmission system based on the non-4K 60 system of claim 6 comprises the following modules:
the synchronous configuration module is configured to add a synchronous generator in the KVM seat system if a plurality of paths of 4K60 format videos to be synchronously transmitted exist in the KVM seat system and need to be synchronized;
the synchronous sending module is configured to use any path of 4K60 format video as a synchronous source of the synchronous generator, unify synchronous instructions by the synchronous generator based on the vertical synchronous information of the input signal, and send the synchronous instructions to each video to be synchronously transmitted;
a second video framing module configured to send, by each of the 4K60 sending nodes, a corresponding video to be synchronously transmitted based on the synchronization instruction, and mark the frame number of each video to be synchronously transmitted as 1,2, …,nframes, and even frames in the frames are marked as even frames to be synchronized, and odd frames are marked as odd frames to be synchronized;
and the synchronous transmission module is configured to transmit the even frames to be synchronized and the odd frames to be synchronized through any two paths of optical fibers, merge the even frames to be synchronized and the odd frames to be synchronized at a receiving node according to the frame sequence number marks of the videos to be transmitted, and receive the merged videos through the corresponding 4K60 receiving node.
8. An electronic device, comprising:
at least one processor; and
a memory communicatively coupled to at least one of the processors; wherein the content of the first and second substances,
the memory stores instructions executable by the processor to implement the non-4K 60 system based 4K60 and 4K30 video compatible transmission method of any of claims 1-3 or the non-4K 60 system based 4K60 and 4K30 video synchronization method of any of claims 4-5.
9. A computer-readable storage medium storing computer instructions for execution by the computer to implement the non-4K 60 system-based 4K60 and 4K30 video compatible transmission method of any one of claims 1 to 3 or the non-4K 60 system-based 4K60 and 4K30 video synchronization method of any one of claims 4 to 5.
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