CN111432250B - 4K program broadcasting control system and method - Google Patents
4K program broadcasting control system and method Download PDFInfo
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- CN111432250B CN111432250B CN201910020375.7A CN201910020375A CN111432250B CN 111432250 B CN111432250 B CN 111432250B CN 201910020375 A CN201910020375 A CN 201910020375A CN 111432250 B CN111432250 B CN 111432250B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
- H04N21/262—Content or additional data distribution scheduling, e.g. sending additional data at off-peak times, updating software modules, calculating the carousel transmission frequency, delaying a video stream transmission, generating play-lists
- H04N21/26208—Content or additional data distribution scheduling, e.g. sending additional data at off-peak times, updating software modules, calculating the carousel transmission frequency, delaying a video stream transmission, generating play-lists the scheduling operation being performed under constraints
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
- H04N21/262—Content or additional data distribution scheduling, e.g. sending additional data at off-peak times, updating software modules, calculating the carousel transmission frequency, delaying a video stream transmission, generating play-lists
- H04N21/26208—Content or additional data distribution scheduling, e.g. sending additional data at off-peak times, updating software modules, calculating the carousel transmission frequency, delaying a video stream transmission, generating play-lists the scheduling operation being performed under constraints
- H04N21/26241—Content or additional data distribution scheduling, e.g. sending additional data at off-peak times, updating software modules, calculating the carousel transmission frequency, delaying a video stream transmission, generating play-lists the scheduling operation being performed under constraints involving the time of distribution, e.g. the best time of the day for inserting an advertisement or airing a children program
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
- H04N21/633—Control signals issued by server directed to the network components or client
- H04N21/6332—Control signals issued by server directed to the network components or client directed to client
Abstract
The embodiment of the invention provides a 4K program broadcasting control system and a method. By adopting the scheme of the embodiment of the application, each 4K program to be played can be configured independently by using the system configuration workstation, so that each device can be controlled independently. The 4K program broadcasting control system in the embodiment of the invention comprises: the system configuration workstation is used for setting configuration parameter information for each 4K program to be broadcasted; the database is used for storing the configuration parameter information of each 4K program to be broadcast; and the broadcasting control workstation is used for controlling the broadcasting equipment to operate according to the configuration parameter information of each 4K program to be broadcasted.
Description
Technical Field
The present application relates to the field of video playing, and in particular, to a 4K program playing control system and method.
Background
In the existing mature high-definition broadcasting system, the main stream Video server itself supports the standard VDCP (Video Disk communication Protocol), so that the broadcasting application software can adopt the same control mode and control timing sequence for the server based on the same control Protocol.
However, in the 4K ultra-high definition broadcasting system, because the standard VDCP cannot meet the frame precision control requirement of the video with the frame rate of 50P or more, the broadcasting control software cannot use the VDCP to realize the unified control of the video servers of different manufacturers, different manufacturers also provide respective proprietary control protocols, and the command sets, the time sequences, the command waiting times and the like of the protocols of different manufacturers are different.
Therefore, a device control method used in an environment of playing 4k ultra high definition video is lacking in the prior art.
Disclosure of Invention
The embodiment of the application provides a 4K program broadcasting control system and a method, which realize the control of 4K ultrahigh-definition video equipment and improve the control precision and accuracy.
The embodiment of the invention provides a 4K program broadcasting control system, which comprises:
the system configuration workstation is used for setting configuration parameter information for each 4K program to be broadcasted;
the database is used for storing the configuration parameter information of each 4K program to be broadcast;
and the broadcasting control workstation is used for controlling the broadcasting equipment to operate according to the configuration parameter information of each 4K program to be broadcasted.
The above-described aspect and any possible implementation further provide an implementation, where the configuration parameter information includes:
the method comprises the steps of plug-in information of a main video server, plug-in information of standby video server equipment, the length of a command sent in advance, the scheduled broadcasting time of the main video server and the scheduled broadcasting time of the standby video server.
The above-described aspects and any possible implementations further provide an implementation in which the playout control workstation comprises: a service control layer and a device control layer;
the service control layer is used for loading the program list from the database, and analyzing the scheduled broadcasting time of each 4K program to be broadcasted, the time length of the instruction sent in advance of each 4K program to be broadcasted and the related broadcasting hardware of each 4K program to be broadcasted; the scheduled broadcasting time comprises scheduled broadcasting time of a main video server and scheduled broadcasting time of a standby video server;
and the equipment control layer is used for controlling the operation of related broadcasting hardware of each 4K program to be broadcasted according to the scheduled broadcasting time of each 4K program to be broadcasted and the length of the instruction sent in advance of each 4K program to be broadcasted.
As for the above-mentioned aspects and any possible implementation manner, there is further provided an implementation manner, where the service control layer is specifically configured to:
the method comprises the steps that 4K programs to be played are ready on a main video server, and when the current system time reaches a first difference time, a playing instruction is sent to the main video server; and the first difference time is the time corresponding to the difference between the scheduled broadcasting time of the main video server for the 4K program to be broadcasted and the time length of the advanced sending instruction for the 4K program to be broadcasted.
As for the above-mentioned aspects and any possible implementation manner, there is further provided an implementation manner, where the service control layer is specifically configured to:
and when the current system time does not reach the first difference time, determining whether the current system time reaches the first difference time according to a specified time interval.
As for the above-mentioned aspects and any possible implementation manner, there is further provided an implementation manner, where the service control layer is specifically configured to:
the 4K program to be played is ready on the standby video server, and when the current system time reaches the second difference value time, a playing instruction is sent to the standby video server; and the second difference time is the time corresponding to the difference between the scheduled broadcasting time of the standby video server for broadcasting the 4K program and the time length of the advanced sending instruction of the 4K program to be broadcasted.
As for the above-mentioned aspects and any possible implementation manner, there is further provided an implementation manner, where the service control layer is specifically configured to:
and when the current system time does not reach the second difference time, determining whether the current system time reaches the second difference time according to a specified time interval.
The embodiment of the invention also provides a 4K program broadcasting control method, which comprises the following steps:
loading a program list from a database;
analyzing the program list to obtain the scheduled broadcasting time of each 4K program to be broadcasted, the time length of the instruction sent in advance of each 4K program to be broadcasted and the related broadcasting hardware of each 4K program to be broadcasted;
and controlling the operation of related broadcasting hardware of each 4K program to be broadcasted according to the scheduled broadcasting time of each 4K program to be broadcasted and the length of the instruction sent in advance of each 4K program to be broadcasted.
The above-mentioned aspects and any possible implementation manners further provide an implementation manner, where the controlling, according to the scheduled broadcast time of each 4K program to be broadcast and the instruction sending duration in advance of each 4K program to be broadcast, the operation of the related broadcast hardware of each 4K program to be broadcast includes:
when the 4K program to be played is ready on the main video server and the current system time reaches a first difference time, sending a playing instruction to the main video server; the first difference time is the time corresponding to the difference between the scheduled broadcasting time of the main video server for the 4K program to be broadcasted and the time length of the advanced sending instruction of the 4K program to be broadcasted;
or when the 4K program to be played is ready on the standby video server and the current system time reaches the second difference time, sending a playing instruction to the standby video server; and the second difference time is the time corresponding to the difference between the scheduled broadcasting time of the standby video server for broadcasting the 4K program and the time length of the advanced sending instruction of the 4K program to be broadcasted.
The above-described aspects and any possible implementations further provide an implementation, and the method further includes:
when the current system time does not reach the first difference time, determining whether the current system time reaches the first difference time according to a specified time interval;
alternatively, the first and second electrodes may be,
and when the current system time does not reach the second difference time, determining whether the current system time reaches the second difference time according to a specified time interval.
The 4K program broadcasting control system and method provided by the embodiment of the invention set configuration parameter information for each to-be-broadcasted 4K program at the system configuration workstation and then store the configuration parameter information in the database, the broadcasting control workstation can call the configuration parameter information set for each to-be-broadcasted 4K program in the database to control the broadcasting equipment to operate, and the system configuration workstation is used for independently configuring each to-be-broadcasted 4K program to realize independent control of each equipment, thereby solving the problem that a plurality of different equipments cannot be controlled by adopting the same standard protocol in the prior art.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
fig. 1 is a schematic structural diagram of a 4K program broadcast control system according to an embodiment of the present invention;
fig. 2 is a flowchart of a 4K program broadcast control method according to an embodiment of the present invention.
Detailed Description
In order to make the technical solutions and advantages of the embodiments of the present application more apparent, the following further detailed description of the exemplary embodiments of the present application with reference to the accompanying drawings makes it clear that the described embodiments are only a part of the embodiments of the present application, and are not exhaustive of all embodiments. 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 4K ultra-high-definition video has the characteristic of high definition, the requirement on frame precision control of hardware is high, and the specific contents of protocols used by video servers of different manufacturers are different, so that a playing control system of a television station can not use the traditional VDCP to realize the unified control of the video servers of different manufacturers.
In addition, in order to ensure the broadcasting safety, in the embodiment of the invention, a set of system architecture suitable for broadcasting the 4K ultra-high definition video is constructed, the main line and the standby line are adopted, and the control center can respectively control the main line and the standby line. The 4K program broadcasting control system is also realized based on a system architecture of a main line and a standby line.
Specifically, fig. 1 is a schematic structural diagram of a 4K program broadcast control system provided in an embodiment of the present invention, and as shown in fig. 1, the 4K program broadcast control system provided in the embodiment of the present invention may specifically include: the system comprises a system configuration workstation 1, a database 2 and a broadcast control workstation 3.
The system configuration workstation 1 is used for setting configuration parameter information for each 4K program to be broadcasted; the database 2 is used for storing the configuration parameter information of each 4K program to be played; and the broadcasting control workstation 3 is used for controlling the operation of the broadcasting equipment according to the configuration parameter information of each 4K program to be broadcasted.
Specifically, in the active/standby two lines, each line has multiple devices, for example, a primary video server and a standby video server. In order to ensure that each device can work independently and not interfere with each other, in the embodiment of the invention, a multithread control mode is adopted, and an independent control thread is created for each device on each line. Each device is configured with a plug-in, stored in a database. When each independent device control thread is started, the information such as the plug-in configuration of the device is obtained from the database, and the corresponding device plug-in is loaded according to the configuration for initialization.
In the embodiment of the present invention, the system configuration workstation 1 is responsible for deploying system configuration work, including but not limited to plug-in information of a main video server, plug-in information of a standby video server device, a length of time for sending an instruction in advance, a scheduled broadcast time of the main video server, and a scheduled broadcast time of the standby video server. It can be understood that, because the broadcast programs have particularity, they need to be arranged according to the sequence of time, and therefore, configuration parameter information needs to be set for each 4K program to be broadcast.
The database 2 is specifically configured to store configuration parameter information generated in the system configuration workstation 1 and set for each 4K program to be broadcast.
The playout control workstation 3 may specifically include: a traffic control layer and a device control layer. The service control layer is used for loading the program list from the database, and analyzing the scheduled broadcasting time of each 4K program to be broadcasted, the time length of the instruction sent in advance of each 4K program to be broadcasted and the related broadcasting hardware of each 4K program to be broadcasted; the scheduled broadcasting time comprises scheduled broadcasting time of a main video server and scheduled broadcasting time of a standby video server; and the equipment control layer is used for controlling the operation of related broadcasting hardware of each 4K program to be broadcasted according to the scheduled broadcasting time of each 4K program to be broadcasted and the length of the instruction sent in advance of each 4K program to be broadcasted.
In the embodiment of the invention, after the service control layer sends the program preparation command to the device control layer, the service control layer will try to retry three times and resend the program preparation command of the main and standby video servers to the device control layer according to the program preparation result of the device control layer software.
The service control layer is also used to determine whether the 4K program to be broadcast is already ready on the associated controlled video server device. I.e. whether the 4K program to be broadcast is ready on the main video server or whether the 4K program to be broadcast is ready on the standby video server.
When the 4K program to be broadcast is ready on the main video server, the service control layer is specifically configured to: when the current system time reaches a first difference time, sending a playing instruction to a main video server; the first difference time is the time corresponding to the difference between the scheduled broadcasting time of the main video server for the 4K program to be broadcasted and the time length of the sending instruction in advance of the 4K program to be broadcasted. For example, the scheduled broadcast time of the 4K program to be broadcast is 12:00, the duration of the command sent in advance is 20 minutes, and the first difference time is 11: and 40, when the current system time is 11:40, sending a playing instruction to the main video server.
After receiving the playing instruction sent by the service control layer, the main video server firstly identifies the received playing instruction, then calls a control plug-in of the specific playing device, converts the playing instruction into a private control instruction of the specific playing device, and sends the private control instruction to the specific playing device according to a specified time sequence.
Since each device is controlled by an independent control thread, in the embodiment of the present invention, after a private control instruction is sent to a specific playback device, the instruction execution condition is obtained again by the private device status query instruction, and is fed back to the service control layer. The service control layer establishes a state variable for each specific playing device, and when the state of a specific playing device needs to be determined, the service control layer determines through the state variable.
It can be understood that when setting configuration parameter information for each 4K program to be played, most of the configuration parameter information will be a period of time ahead, so as to prevent an emergency, and therefore, a period of time often exists between the current system time and the first difference time, that is, when the current system time does not reach the first difference time, under such a condition, the service control layer will not send a play instruction to the main video server, and determine whether the current system time reaches the first difference time according to a specified time interval, and until the current system time reaches the first difference time, the service control layer will not send the play instruction to the main video server. Determining whether the current system time reaches the first difference time at the specified time interval may operate in a periodic polling manner, for example, at 30 second intervals.
When the 4K program to be broadcast is ready on the main video server, the service control layer is specifically configured to: when the current system time reaches a second difference value time, sending a playing instruction to the standby video server; the second difference time is the time corresponding to the difference between the scheduled broadcasting time of the standby video server for broadcasting the 4K program and the time length of the advanced sending instruction of the 4K program to be broadcasted. For example, the scheduled broadcast time of the 4K program to be broadcast is 11:00, the time length of the command sent in advance is 10 minutes, and the first difference time is 10: and 50, when the current system time is 10:50, sending a playing instruction to the standby video server.
And when the current system time does not reach the second difference time, under the condition, the service control layer does not send a playing instruction to the standby video server, whether the current system time reaches the second difference time is determined according to the specified time interval, and the service control layer does not send the playing instruction to the standby video server until the current system time reaches the second difference time. Determining whether the current system time reaches the second difference time at the specified time interval may operate in a periodic polling manner, e.g., at 15 second intervals, to determine whether the current system time reaches the second difference time.
The 4K program broadcasting control system provided by the embodiment of the invention sets the configuration parameter information for each to-be-broadcasted 4K program at the system configuration workstation, and then stores the configuration parameter information in the database, and the broadcasting control workstation can call the configuration parameter information set for each to-be-broadcasted 4K program in the database to control the broadcasting equipment to operate, and individually configures each to-be-broadcasted 4K program by using the system configuration workstation, so that the individual control of each equipment is realized, and the problem that a plurality of different equipment cannot be controlled by using the same standard protocol in the prior art is solved.
Further, in combination with the content of the 4K program broadcast control system, an embodiment of the present invention further provides a 4K program broadcast control method, fig. 2 is a flowchart of the 4K program broadcast control method provided in the embodiment of the present invention, and as shown in fig. 2, the 4K program broadcast control method provided in the embodiment of the present invention may specifically include the following steps:
201. the program listings are loaded from the database.
202. And analyzing the program list to obtain the scheduled broadcasting time of each 4K program to be broadcasted, the time length of the instruction sent in advance of each 4K program to be broadcasted and the related broadcasting hardware of each 4K program to be broadcasted.
203. And controlling the operation of related broadcasting hardware of each 4K program to be broadcasted according to the scheduled broadcasting time of each 4K program to be broadcasted and the length of the instruction sent in advance of each 4K program to be broadcasted.
In the embodiment of the invention, the 4K program broadcasting control system is based on the main and standby two lines, and the control center can respectively control the main and standby two lines, so that each 4K program to be broadcasted can be simultaneously on the main and standby two lines, can be only on the main line, and can be only on the standby line.
When the 4K program to be played is ready on the main video server and the current system time reaches a first difference time, sending a playing instruction to the main video server; the first difference time is the time corresponding to the difference between the scheduled broadcasting time of the main video server for broadcasting the 4K program and the time length of the advanced sending instruction of the 4K program to be broadcasted; and when the current system time does not reach the first difference time, determining whether the current system time reaches the first difference time according to a specified time interval.
Or when the 4K program to be played is ready on the standby video server and the current system time reaches the second difference time, sending a playing instruction to the standby video server; the second difference time is the time corresponding to the difference between the scheduled broadcasting time of the standby video server for broadcasting the 4K program and the time length of the advanced sending instruction of the 4K program to be broadcasted; and when the current system time does not reach the second difference time, determining whether the current system time reaches the second difference time according to the specified time interval.
According to the 4K program broadcasting control method provided by the embodiment of the invention, firstly, a program list is loaded from a database, then the program list is analyzed to obtain the scheduled broadcasting time of each to-be-broadcasted 4K program in the program list, the time length of the instruction sent in advance of each to-be-broadcasted 4K program and the related broadcasting hardware of each to-be-broadcasted 4K program, so that the related broadcasting hardware of each to-be-broadcasted 4K program is controlled to operate, each to-be-broadcasted 4K program is independently managed by analyzing the information of the program list, and each device for broadcasting the 4K program is independently controlled, so that the problem that a plurality of different devices cannot be controlled by the same standard protocol in the prior art is solved.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While the preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all alterations and modifications as fall within the scope of the application.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.
Claims (6)
1. A4K program broadcasting control system is characterized by comprising:
the system configuration workstation is used for setting configuration parameter information for each 4K program to be broadcasted;
the database is used for storing the configuration parameter information of each 4K program to be broadcast;
the broadcasting control workstation is used for controlling the running of broadcasting equipment according to the configuration parameter information of each 4K program to be broadcasted;
the broadcast control workstation comprises: a service control layer and a device control layer;
the service control layer is used for loading the program list from the database, and analyzing the scheduled broadcasting time of each 4K program to be broadcasted, the time length of the instruction sent in advance of each 4K program to be broadcasted and the related broadcasting hardware of each 4K program to be broadcasted; the scheduled broadcasting time comprises scheduled broadcasting time of a main video server and scheduled broadcasting time of a standby video server;
the equipment control layer is used for controlling the operation of related broadcasting hardware of each 4K program to be broadcasted according to the scheduled broadcasting time of each 4K program to be broadcasted and the length of the instruction sent in advance of each 4K program to be broadcasted;
the service control layer is specifically configured to:
the method comprises the steps that 4K programs to be played are ready on a main video server, and when the current system time reaches a first difference time, a playing instruction is sent to the main video server; the first difference time is the time corresponding to the difference between the scheduled broadcasting time of the main video server for the 4K program to be broadcasted and the time length of the advanced sending instruction of the 4K program to be broadcasted;
or the 4K program to be played is ready on the standby video server, and when the current system time reaches the second difference value time, a playing instruction is sent to the standby video server; and the second difference time is the time corresponding to the difference between the scheduled broadcasting time of the standby video server for broadcasting the 4K program and the time length of the advanced sending instruction of the 4K program to be broadcasted.
2. The system of claim 1, wherein the configuration parameter information comprises:
the method comprises the steps of plug-in information of a main video server, plug-in information of standby video server equipment, the length of a command sent in advance, the scheduled broadcasting time of the main video server and the scheduled broadcasting time of the standby video server.
3. The system of claim 1, wherein the traffic control layer is specifically configured to:
and when the current system time does not reach the first difference time, determining whether the current system time reaches the first difference time according to a specified time interval.
4. The system of claim 1, wherein the traffic control layer is specifically configured to:
and when the current system time does not reach the second difference time, determining whether the current system time reaches the second difference time according to a specified time interval.
5. A4K program broadcasting control method is characterized by comprising the following steps:
loading a program list from a database;
analyzing the program list to obtain the scheduled broadcasting time of each 4K program to be broadcasted, the time length of the instruction sent in advance of each 4K program to be broadcasted and the related broadcasting hardware of each 4K program to be broadcasted;
controlling the operation of related broadcasting hardware of each 4K program to be broadcasted according to the scheduled broadcasting time of each 4K program to be broadcasted and the time length of the instruction sent in advance of each 4K program to be broadcasted;
the method for controlling the operation of the related broadcasting hardware of each 4K program to be broadcasted according to the scheduled broadcasting time of each 4K program to be broadcasted and the length of the instruction sent in advance of each 4K program to be broadcasted comprises the following steps:
when the 4K program to be played is ready on the main video server and the current system time reaches a first difference time, sending a playing instruction to the main video server; the first difference time is the time corresponding to the difference between the scheduled broadcasting time of the main video server for the 4K program to be broadcasted and the time length of the advanced sending instruction of the 4K program to be broadcasted;
or when the 4K program to be played is ready on the standby video server and the current system time reaches the second difference time, sending a playing instruction to the standby video server; and the second difference time is the time corresponding to the difference between the scheduled broadcasting time of the standby video server for broadcasting the 4K program and the time length of the advanced sending instruction of the 4K program to be broadcasted.
6. The method of claim 5, further comprising:
when the current system time does not reach the first difference time, determining whether the current system time reaches the first difference time according to a specified time interval;
alternatively, the first and second electrodes may be,
and when the current system time does not reach the second difference time, determining whether the current system time reaches the second difference time according to a specified time interval.
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| CN101742095A (en) * | 2009-12-31 | 2010-06-16 | 北京中科大洋科技发展股份有限公司 | Automatic broadcast four-stage automatic switching device and method |
| CN102833469A (en) * | 2012-09-10 | 2012-12-19 | 中央电视台 | Method for dynamically distributing broadcast shared resources |
| CN102833468A (en) * | 2012-09-10 | 2012-12-19 | 中央电视台 | Broadcasting PGM (Probabilistic Graphical Model) master-slave output one-click emergency system and method |
| CN106101763A (en) * | 2016-07-18 | 2016-11-09 | 中央电视台 | A kind of program broadcast control method and device |
| CN106535005A (en) * | 2016-10-25 | 2017-03-22 | 北京邦天信息技术有限公司 | Method and device for realizing broadcast control service |
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