CN117834985A - Cloud-on-cloud-off signal output system and method - Google Patents

Abstract

The application discloses a cloud upper and lower signal output system and method, the video acquisition module gathers digital signal, the encoder module encodes digital signal, mark the time stamp in frame data and obtain cloud upper network interconnection protocol signal, synchronous clock module synchronizes cloud upper network interconnection protocol signal and cloud lower digital signal, the cloud upper network interconnection protocol signal and the cloud lower digital signal after the signal transmission module transmission synchronization, the time delay module carries out frame buffer processing to the cloud upper network interconnection protocol signal and the cloud lower digital signal after synchronization, the centralized control module receives the dynamic setting that the time delay module sent, and buffer according to the dynamic setting, guarantee the cloud upper network interconnection protocol signal and the cloud lower digital signal synchronization after the time delay. And the frame buffer and the output synchronization of the cloud downloading digital signal and the cloud network signal are controlled dynamically in real time by acquiring and controlling the number of the frame buffers delayed under the cloud in a centralized manner.

Description

Cloud-on-cloud-off signal output system and method

Technical Field

The application relates to the technical field of signals and communication, in particular to a cloud-on-cloud-off-cloud signal output system and method.

Background

In the current age of 5G technology and video rebroadcasting with a large burst, the synchronous broadcasting of network signals and television signals becomes an important point and a difficult point in the field. For the video camera, not only a conventional digital signal (for example, serial digital interface (SDI, serial digital interface)) needs to be output to a conventional television channel, but also the output digital signal (SDI, etc.) needs to be IP-formatted and output to a new media channel through an IP stream network signal.

However, since the encoding and decoding operations generate delay, signals are affected by propagation media, network fluctuation, encoding and decoding and the like in the propagation process, so that a large time difference exists between the same signal source on the cloud and the same signal source under the cloud after transmission, synchronous output of the signals under the cloud on the cloud cannot be realized, the problem of synchronization of digital signals and network signals cannot be solved by the existing network signal time code synchronization scheme, and meanwhile, frame buffer synchronization between the delays is also difficult in different environments due to the fact that the delays on the cloud and the under the cloud are in different environments.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide a cloud-on-cloud-off signal output system and a cloud-on-cloud-off signal output method.

The purpose of the application is realized through the following technical scheme:

in a first aspect, the application provides a cloud-on-cloud-off signal output system, which comprises a video acquisition module, an encoder module, a signal transmission module, a delay module and a centralized control module which are sequentially connected, and further comprises a synchronous clock module connected with the encoder module;

the video acquisition module is used for acquiring digital signals and sending the digital signals to the encoder module;

the encoder module is used for encoding the digital signals, and marking time stamps in the frame data to obtain network interconnection protocol signals on the cloud;

the synchronous clock module is used for synchronizing the cloud upper network interconnection protocol signal and the cloud lower digital signal and sending the synchronized cloud upper network interconnection protocol signal and cloud lower digital signal to the signal transmission module through the cloud upper network interconnection protocol signal and the cloud lower digital signal;

the signal transmission module is used for transmitting the synchronized internet protocol signals on the cloud and the synchronized digital signals under the cloud to the delay module;

the delay module is used for carrying out frame buffer processing on the synchronized cloud upper network interconnection protocol signals and cloud lower digital signals;

the centralized control module is used for receiving the dynamically set cache frame number sent by the delay module, caching the frame number control command according to the cache frame number and guaranteeing synchronization of the delayed cloud upper network interconnection protocol signal and the cloud lower digital signal.

In a possible implementation manner, the synchronous clock module includes a global positioning system time service unit, which is configured to synchronize an internet protocol signal on the cloud and a digital signal under the cloud according to the received satellite time service signal.

In a possible implementation manner, the centralized control module is further configured to obtain time code information of the delay module in real time, and dynamically set the buffer frame number according to the time code information.

In a possible implementation manner, the signal transmission module is further configured to send a network interconnection protocol signal to the delay module through a 5G network, or a mobile hotspot, or a wired network.

In a possible implementation manner, the signal transmission module is further configured to send the digital signal under the cloud to the delay module in an analog transmission manner or a digital transmission manner.

In a second aspect, the present application proposes a method for outputting signals under cloud top and cloud bottom, where the method is applied to a system for outputting signals under cloud top and cloud bottom, and the method includes:

encoding the acquired digital signals, and marking time stamps in frame data to obtain network-on-cloud interconnection protocol signals;

synchronizing the cloud upper network interconnection protocol signal and the cloud lower digital signal, and transmitting the synchronized cloud upper network interconnection protocol signal and cloud lower digital signal through the cloud upper network interconnection protocol signal and cloud lower digital signal;

performing frame buffer processing on the synchronized cloud upper network interconnection protocol signal and the cloud lower digital signal;

and receiving the dynamically set buffer frame number, and buffering the frame number control command according to the buffer frame number, so as to ensure that the delayed cloud upper network interconnection protocol signal and the cloud lower digital signal are synchronous.

In a possible implementation manner, the step of synchronizing the internet protocol signal on the cloud and the digital signal under the cloud includes:

and synchronizing the network interconnection protocol signals on the cloud and the digital signals under the cloud according to the received satellite time service signals.

In one possible embodiment, the steps before receiving the dynamically set buffer frame number include:

and acquiring time code information in real time, and dynamically setting the cache frame number according to the time code information.

In a possible implementation manner, the step of sending the synchronized internet protocol signal on the cloud and the synchronized digital signal under the cloud through the internet protocol signal on the cloud and the digital signal under the cloud includes:

the network interconnection protocol signal is sent through a 5G network, or a mobile hotspot, or a wired network.

In a possible implementation manner, the step of sending the synchronized internet protocol signal on the cloud and the synchronized digital signal under the cloud through the internet protocol signal on the cloud and the digital signal under the cloud further includes:

and sending the digital signal under the cloud through an analog transmission mode or a digital transmission mode.

The main scheme and each further option of the application can be freely combined to form a plurality of schemes, which are all schemes that can be adopted and claimed by the application; and the selection(s) of non-conflicting choices and other choices may be freely combined. Numerous combinations will be apparent to those skilled in the art upon review of the present application, and are not intended to be exhaustive or to be construed as limiting the scope of the invention.

The application discloses a cloud upper and lower signal output system and method, the video acquisition module gathers digital signal, the encoder module encodes digital signal, mark the time stamp in frame data and obtain cloud upper network interconnection protocol signal, synchronous clock module synchronizes cloud upper network interconnection protocol signal and cloud lower digital signal, the cloud upper network interconnection protocol signal and the cloud lower digital signal after the signal transmission module transmission synchronization, the time delay module carries out frame buffer processing to the cloud upper network interconnection protocol signal and the cloud lower digital signal after synchronization, the centralized control module receives the dynamic setting that the time delay module sent, and buffer according to the dynamic setting, guarantee the cloud upper network interconnection protocol signal and the cloud lower digital signal synchronization after the time delay. And the frame buffer and the output synchronization of the cloud downloading digital signal and the cloud network signal are controlled dynamically in real time by acquiring and controlling the number of the frame buffers delayed under the cloud in a centralized manner.

Drawings

Fig. 1 shows a schematic diagram of a cloud-on-cloud-off-cloud signal output system according to an embodiment of the present application.

Fig. 2 shows an embodiment diagram of a cloud-on-cloud-off-cloud signal output system according to an embodiment of the present application.

Detailed Description

Other advantages and effects of the present application will become apparent to those skilled in the art from the present disclosure, when the following description of the embodiments is taken in conjunction with the accompanying drawings. The present application may be embodied or carried out in other specific embodiments, and the details of the present application may be modified or changed from various points of view and applications without departing from the spirit of the present application. It should be noted that the following embodiments and features in the embodiments may be combined with each other without conflict.

All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

In the prior art, since the SDI digital signal output by the camera is IP-enabled, corresponding encoding and decoding operations generate delay, and the network signal is affected by factors such as propagation medium in transmission, a large gap exists between the propagation speed and the traditional digital signal, and delay is further caused, besides, the delay gap is affected by factors such as network fluctuation, and the delay gap has an unstable characteristic.

Therefore, in order to solve the above-mentioned problems, the embodiments of the present application provide a cloud-on-cloud-off signal output system and method, which acquire and centrally control the number of frame buffers delayed under the cloud on the cloud in real time, dynamically control the frame buffers in real time, and synchronize the output of the cloud-off digital signal and the cloud-on network signal, and then explain the same in detail.

Referring to fig. 1, fig. 1 shows a schematic diagram of a cloud-on-cloud-off signal output system provided by an embodiment of the present application, where the system is applied to a cloud-on and a cloud-off environment, and includes a video acquisition module, an encoder module, a signal transmission module, a delay module, a centralized control module, and a synchronous clock module connected with the encoder module, which are sequentially connected;

the video acquisition module is used for acquiring the digital signals and sending the digital signals to the encoder module;

the encoder module is used for encoding the digital signals, and marking time stamps in the frame data to obtain network interconnection protocol signals on the cloud;

the synchronous clock module is used for synchronizing the cloud upper network interconnection protocol signal and the cloud lower digital signal and sending the synchronized cloud upper network interconnection protocol signal and cloud lower digital signal to the signal transmission module through the cloud upper network interconnection protocol signal and the cloud lower digital signal;

the signal transmission module is used for transmitting the synchronized internet protocol signals on the cloud and the digital signals under the cloud to the delay module;

the delay module is used for carrying out frame buffer processing on the synchronized cloud upper network interconnection protocol signals and the cloud lower digital signals;

and the centralized control module is used for receiving the dynamically set cache frame number sent by the delay module, caching the frame number control command according to the cache frame number and ensuring that the delayed cloud upper network interconnection protocol signal and the cloud lower digital signal are synchronous.

The encoder module processes the digital signals and marks time stamps to frame data to obtain cloud network interconnection protocol signals which are transmitted on the cloud, the synchronous clock module synchronizes the cloud network interconnection protocol signals and cloud digital signals, the signal transmission module transmits the synchronized cloud network interconnection protocol signals and cloud digital signals to the delay module (delayer), the delay module carries out frame buffer processing on the signals, and finally the centralized control module sets buffer frame number control commands for the delay module to synchronize the clock module to comprise a global positioning system time service unit, and the clock module is used for synchronizing the cloud network interconnection protocol signals and the cloud digital signals according to the received satellite time service signals.

And the centralized control module is also used for acquiring the time code information of the delay module in real time and dynamically setting the cache frame number according to the time code information.

The signal transmission module is also used for transmitting the network interconnection protocol signal to the delay module through a 5G network, or a mobile hot spot or a wired network.

The signal transmission module is also used for transmitting the digital signal under the cloud to the delay module in an analog transmission mode or a digital transmission mode.

Therefore, the video acquisition module in the application acquires the digital signals, the encoder module encodes the digital signals, the time stamp is marked in the frame data to obtain the network interconnection protocol signals on the cloud, the synchronous clock module synchronizes the network interconnection protocol signals on the cloud and the digital signals under the cloud, the signal transmission module transmits the network interconnection protocol signals on the cloud and the digital signals under the cloud after synchronization, the delay module performs frame buffer processing on the network interconnection protocol signals on the cloud and the digital signals under the cloud after synchronization, the centralized control module receives dynamic setting sent by the delay module and buffers frame control commands according to the dynamic setting, and synchronization of the network interconnection protocol signals on the cloud and the digital signals under the cloud after delay is guaranteed. And the frame buffer and the output synchronization of the cloud downloading digital signal and the cloud network signal are controlled dynamically in real time by acquiring and controlling the number of the frame buffers delayed under the cloud in a centralized manner.

Referring to fig. 2, fig. 2 shows an embodiment of a cloud-on-cloud-off signal output system provided by the embodiment of the present application, in which a signal source respectively sends acquired SDI signals to an SDI under the cloud through an encoder and to an upstream cloud media through the encoder in a compressed stream mode, an NTP clock server provides high-precision time correction for the encoder, two different retarders respectively acquire signals sent by the upstream cloud media and the SDI under the cloud, a centralized controller connected with the retarders respectively acquire current time codes of the two retarders in real time, dynamically sets the buffer frame numbers of the two retarders, and finally the two retarders respectively send signals to a new media channel and a television channel to synchronize the digital signals under the cloud and the network signals on the cloud.

In addition, the embodiment of the application also provides a cloud-on-cloud-off signal output method, which is applied to a cloud-on-cloud-off signal output system and comprises the following steps:

encoding the acquired digital signals, and marking time stamps in frame data to obtain network-on-cloud interconnection protocol signals;

synchronizing the cloud upper network interconnection protocol signal and the cloud lower digital signal, and transmitting the synchronized cloud upper network interconnection protocol signal and cloud lower digital signal through the cloud upper network interconnection protocol signal and cloud lower digital signal;

performing frame buffer processing on the synchronized cloud upper network interconnection protocol signal and the cloud lower digital signal;

and receiving the dynamically set buffer frame number, and buffering the frame number control command according to the buffer frame number, so as to ensure that the delayed cloud upper network interconnection protocol signal and the cloud lower digital signal are synchronous.

In a possible implementation manner, the step of synchronizing the internet protocol signal on the cloud and the digital signal under the cloud includes:

and synchronizing the network interconnection protocol signals on the cloud and the digital signals under the cloud according to the received satellite time service signals.

Firstly, encoding and processing digital signals acquired by video to obtain network interconnection protocol signals transmitted on a cloud, receiving satellite time signals by using a time service unit of a global positioning system, marking time stamps in frame data according to the satellite time service signals to finish synchronous transmission of frame data with the time stamp marks to a delayer for the network interconnection protocol signals on the cloud and the digital signals under the cloud, respectively carrying out frame buffer processing on the network interconnection protocol signals and the digital signals by the delayers in cloud and cloud environment, finally, acquiring time code information of the delayers under the cloud in real time by a centralized control server, dynamically setting the buffer frame number of the delayers under the cloud, and finishing synchronous output of the signals under the cloud.

The steps before receiving the dynamically set buffer frame number include:

and acquiring time code information in real time, and dynamically setting the cache frame number according to the time code information.

The step of sending the synchronized internet protocol signal on the cloud and the synchronized digital signal under the cloud through the internet protocol signal on the cloud and the digital signal under the cloud comprises the following steps:

the network interconnection protocol signal is sent through a 5G network, or a mobile hotspot, or a wired network.

The step of sending the synchronized internet protocol signal on the cloud and the synchronized digital signal under the cloud through the internet protocol signal on the cloud and the digital signal under the cloud further comprises the following steps:

and sending the digital signal under the cloud through an analog transmission mode or a digital transmission mode.

The following describes each detailed step in the flow of the cloud-on-cloud-off-cloud signal output method:

and step 1, acquiring digital signals of a site.

And 2, encoding the digital signals, transcoding the encoded signals to obtain cloud network interconnection protocol signals with different code rates, receiving satellite time signals by using a global positioning system time service unit, and marking time stamps into frame data according to the satellite time service signals.

And 3, transmitting the cloud lower digital signal with the time stamp to the cloud lower delayer by adopting an analog transmission mode or a digital transmission mode, and transmitting the cloud upper network interconnection protocol signal with the time stamp to the cloud upper delayer by adopting a 5G network, a mobile hot spot or a wired network.

Step 4, the cloud upper and cloud lower time delays respectively acquire the current signal time codes in real time and notify the centralized controller;

and 5, comparing the current signal time codes of the cloud upper and cloud lower time delays by the centralized controller, and respectively sending control commands for dynamically setting the cache frame number to the cloud upper and cloud lower time delays according to the minimum value in the current signal time codes.

And 6, delaying by the cloud upper and cloud lower delayers according to the designated cache frame number.

And 7, outputting delayed signals by the cloud upper and cloud lower delayers.

The foregoing description of the preferred embodiments of the present application is not intended to be limiting, but is intended to cover any and all modifications, equivalents, and alternatives falling within the spirit and principles of the present application.

Claims (10)

1. The cloud-on-cloud-off signal output system is characterized by comprising a video acquisition module, an encoder module, a signal transmission module, a delay module, a centralized control module and a synchronous clock module, wherein the video acquisition module, the encoder module, the signal transmission module, the delay module and the centralized control module are sequentially connected;

the video acquisition module is used for acquiring digital signals and sending the digital signals to the encoder module;

the encoder module is used for encoding the digital signals, and marking time stamps in the frame data to obtain network interconnection protocol signals on the cloud;

the synchronous clock module is used for synchronizing the cloud upper network interconnection protocol signal and the cloud lower digital signal and sending the synchronized cloud upper network interconnection protocol signal and cloud lower digital signal to the signal transmission module through the cloud upper network interconnection protocol signal and the cloud lower digital signal;

the signal transmission module is used for transmitting the synchronized internet protocol signals on the cloud and the synchronized digital signals under the cloud to the delay module;

the delay module is used for carrying out frame buffer processing on the synchronized cloud upper network interconnection protocol signals and cloud lower digital signals;

the centralized control module is used for receiving the dynamically set cache frame number sent by the delay module, caching the frame number control command according to the cache frame number and guaranteeing synchronization of the delayed cloud upper network interconnection protocol signal and the cloud lower digital signal.

2. The cloud upper-cloud lower-signal output system according to claim 1, wherein the synchronous clock module comprises a global positioning system time service unit for synchronizing an internet protocol signal on the cloud and a digital signal under the cloud according to the received satellite time service signal.

3. The cloud upper-cloud lower-signal output system according to claim 1, wherein the centralized control module is further configured to obtain time code information of the delay module in real time, and dynamically set a buffer frame number according to the time code information.

4. The cloud-over-cloud-under-signal output system of claim 1, wherein the signal transmission module is further configured to send a network interconnection protocol signal to the delay module through a 5G network, or a mobile hotspot, or a wired network.

5. The cloud-on-cloud-off signal output system according to claim 1, wherein the signal transmission module is further configured to send the cloud-off digital signal to the delay module in an analog transmission manner or a digital transmission manner.

6. The cloud-on-cloud-off signal output method is characterized by being applied to a cloud-on-cloud-off signal output system and comprising the following steps of:

encoding the acquired digital signals, and marking time stamps in frame data to obtain network-on-cloud interconnection protocol signals;

synchronizing the cloud upper network interconnection protocol signal and the cloud lower digital signal, and transmitting the synchronized cloud upper network interconnection protocol signal and cloud lower digital signal through the cloud upper network interconnection protocol signal and cloud lower digital signal;

performing frame buffer processing on the synchronized cloud upper network interconnection protocol signal and the cloud lower digital signal;

and receiving the dynamically set buffer frame number, and buffering the frame number control command according to the buffer frame number, so as to ensure that the delayed cloud upper network interconnection protocol signal and the cloud lower digital signal are synchronous.

7. The method for outputting cloud-on-cloud and cloud-off-signal as claimed in claim 6, wherein the step of synchronizing the cloud-on-network interconnection protocol signal and the cloud-off-digital signal comprises:

and synchronizing the network interconnection protocol signals on the cloud and the digital signals under the cloud according to the received satellite time service signals.

8. The method for outputting cloud upper and lower signals according to claim 6, wherein the step before receiving the dynamically set number of buffer frames comprises:

and acquiring time code information in real time, and dynamically setting the cache frame number according to the time code information.

9. The method for outputting cloud-on-cloud and cloud-off-digital signals according to claim 6, wherein the step of transmitting the synchronized cloud-on-network interconnection protocol signal and cloud-off-digital signal through the cloud-on-network interconnection protocol signal and the cloud-off-digital signal comprises:

the network interconnection protocol signal is sent through a 5G network, or a mobile hotspot, or a wired network.

10. The method for outputting cloud-on-cloud and cloud-off-digital signals according to claim 6, wherein the step of transmitting the synchronized cloud-on-network interconnection protocol signal and cloud-off-digital signal through the cloud-on-network interconnection protocol signal and the cloud-off-digital signal further comprises:

and sending the digital signal under the cloud through an analog transmission mode or a digital transmission mode.