News studio cluster system and news studio cluster application method

Abstract

The embodiment of the invention provides a news studio cluster system and a news studio cluster application method, and the system comprises a network control layer which is used for carrying out the network control and management of a forwarding switching layer and an IP video and audio terminal equipment layer, and provides a unified network service for a business application layer; the business application layer comprises a plurality of business domains, and each business domain is used for providing an application-oriented user interface function and carrying out signal scheduling, resource management, definable function management and system monitoring services; the forwarding switching layer is used for providing forwarding based on real-time video and audio service streams by a service forwarding switching matrix, and controlled information is provided by an IP stream forwarding interface of the network control layer; the IP video and audio terminal equipment layer is used for processing video and audio signals, controlled information is provided by an IP terminal control interface of the network control layer, the independent autonomous capability of the studio is improved through the design of a service domain, and the application function can be flexibly expanded.

Description

Technical Field

[0001] The present application relates to the field of radio and television technology, and in particular, to a news studio cluster system and a news studio cluster application method. Background Art

[0002] At present, studio systems are usually built in clusters, breaking the traditional form of isolated studios, so that studios within the cluster can realize signal scheduling and technical resource sharing. News live studios broadcast a large amount of programs and broadcast for a long time every day, which requires high security broadcasting, convenient operation, and flexible sharing.

[0003] With the evolution of audio and video data IP (Internet Protocol) encapsulation technology and standards, building an IP-based production and broadcasting system that supports large-scale, multi-service integration is an inevitable choice for development. Currently, IP technology and SDN (Software Defined Network) technology are the main technical methods for building studio cluster audio and video systems. Signal sharing between studios in a cluster can be achieved through the SDN system.

[0004] like Figure 1 As shown, in the existing IP studio cluster, in order to achieve resource sharing of signals within the cluster, an SDN system is established. This SDN system configures, manages, controls and monitors all scheduling resources of the IP cluster. The audio and video equipment and network equipment of all studios in the cluster are registered in one SDN system.

[0005] When a studio in the cluster needs to dynamically increase or decrease equipment, adjust configuration, or temporarily develop new business applications due to business needs, the entire cluster system needs to be adjusted or iteratively upgraded, which may require the entire studio cluster to be shut down for maintenance. On the one hand, it affects the efficiency of each studio, and on the other hand, it also brings security risks to other studios that do not need to upgrade. After the application upgrade, it is necessary to fully verify the various business functions of the entire group. The scope of verification is large and the operation is complicated. This method greatly limits the scale of the studio cluster. Usually, only 2-3 studios with specific business or high interconnection requirements can be managed as a cluster, and they can usually only be built once, with poor online scalability. Summary of the invention

[0006] The embodiments of the present application provide a news studio cluster system and a news studio cluster application method.

[0007] In the first aspect of the embodiments of the present application, a news studio cluster system is provided. The system includes a network control layer, and a service application layer, a forwarding and switching layer, and an IP audio and video terminal device layer that are all connected to the network control layer. Among them,

[0008] the network control layer is used to perform unified network control and management on the forwarding and switching layer and the IP audio and video terminal device layer, and provide unified network services to the service application layer;

[0009] the service application layer includes multiple service domains, and each service domain is used to provide user interface functions oriented to applications, perform signal scheduling, resource management, definable function management, and system monitoring services;

[0010] the forwarding and switching layer is used to provide forwarding based on real-time audio and video service flows by a service forwarding and switching matrix, and the controlled information is provided by the IP flow forwarding interface of the network control layer. Among them, the service forwarding and switching matrix is connected to the IP audio and video terminal device layer for transmitting IP signal flows;

[0011] the IP audio and video terminal device layer is used to complete the processing of audio and video signals by various types of IP audio and video terminal devices, and the controlled information is provided by the IP terminal control interface of the network control layer.

[0012] In an optional embodiment of the present application, a service domain interface and an IP flow control interface are set on each service domain. Each service domain is connected to the network control layer through the IP flow control interface. The service domain is a shared domain or a studio domain. Each studio domain configures corresponding studio services in the service application layer. In the forwarding and switching layer and the IP audio and video terminal device layer, corresponding forwarding devices and IP audio and video terminal devices are respectively configured according to the characteristics of the studio services; the shared domain is used to connect each studio domain for cross-service domain scheduling, realize the transmission of service request data between the shared domain and the studio domain through the service domain interface, and connect and manage the shared IP audio and video terminals and other shared device resources used to dynamically provide services for each studio domain. Among them, a group of service domains includes a shared domain and at least one studio domain. In a group of service domains, each studio domain is connected to the shared domain through the service domain interface.

[0013] In an optional embodiment of the present application, the network control layer is provided with an IP flow control interface, an IP flow forwarding interface, and an IP terminal control interface, which are respectively used to connect to each service domain, each forwarding device of the forwarding and switching layer, and each IP video and audio terminal device of the IP video and audio terminal device layer. The network control layer is further provided with a network address switching control module and a terminal switching control module. The network address switching control module is used to push the IP signal flow from the shared domain to the studio domain, and the terminal switching control module is used to push the IP signal flow from the studio domain to the shared domain or the terminal.

[0014] In an optional embodiment of the present application, the forwarding and switching layer includes a shared domain forwarding device and a studio domain forwarding device, which are used to forward the IP signal flow of the studio domain to the IP video and audio terminal device layer. Among them, the service forwarding and switching matrix includes a routing and switching matrix and a general multicast switching matrix. The shared domain forwarding device is the routing and switching matrix, and the studio domain forwarding device is the general multicast switching matrix.

[0015] In an optional embodiment of the present application, the IP video and audio terminal device layer includes a shared domain IP video and audio terminal device and a studio domain IP video and audio terminal device, which are used to send and receive the corresponding IP signal flows of the shared domain and the studio domain.

[0016] In the second aspect of the embodiments of the present application, a news studio cluster application method implemented based on the above news studio cluster system is provided. The method includes:

[0017] Using the service application layer to receive the user's service request, and through the IP flow control interface, sending the control switching instruction corresponding to the service request to the network control layer, and transmitting the IP signal flow corresponding to the service request;

[0018] Using the network control layer, through the IP flow forwarding interface and the IP flow terminal control interface, and via the routing and switching matrix and the general multicast switching matrix of the forwarding and switching layer, transmitting the IP signal flow to the IP video and audio terminal device layer according to the control switching instruction;

[0019] Using the network control layer to obtain the switching matrix routing status feedback of the shared domain and the studio domain through the IP flow forwarding interface, and obtain the transceiver flow information and status feedback of the IP video and audio terminal through the IP flow terminal interface;

[0020] Using the service application layer to obtain the information of the IP signal flows of the shared domain and the studio domain from the network control layer through the IP flow control interface, and presenting it to the user on the interface.

[0021] In an optional embodiment of the present application, the use of the service application layer to receive the user's service request includes:

[0022] The business request of the user is sent to the studio domain in the same group as the shared domain through the business domain interface using the shared domain of the business application layer.

[0023] In an alternative embodiment of the present application, the step of sending the control switching instruction corresponding to the business request to the network control layer through the IP flow control interface and transmitting the IP signal stream corresponding to the business request includes:

[0024] The studio domain of the business application layer issues the control switching instruction corresponding to the business request to the network control layer through the IP flow control interface, and transmits the IP signal stream of the IP video and audio terminal corresponding to the business request.

[0025] In an alternative embodiment of the present application, the step of using the network control layer to transmit the IP signal stream to the IP video and audio terminal device layer according to the control switching instruction via the routing and switching matrix and the general multicast switching matrix of the forwarding and switching layer through the IP flow forwarding interface and the IP flow terminal control interface includes:

[0026] Using the terminal switching control module of the network control layer, the IP signal stream of the studio domain is pushed from the multicast switching matrix of the studio domain to the shared domain routing and switching matrix;

[0027] Using the network address switching control module of the network control layer, the IP signal stream in the shared domain routing and switching matrix is pushed to the multicast switching matrix of the studio domain;

[0028] Using the terminal switching control module of the network control layer, the IP signal stream of the multicast switching matrix of the studio domain is switched to the IP video and audio terminal layer.

[0029] In an alternative embodiment of the present application, the method further includes:

[0030] The shared domain of the business application layer connects the studio domains of the business application layer to perform cross-business domain scheduling, realizes the transfer of business request data between the shared domain and the studio domain through the business domain interface, and connects and manages the shared IP video and audio terminals and other shared device resources that dynamically provide services for each studio domain.

[0031] The above technical solutions provided by the embodiments of the present application have at least some or all of the following advantages compared with the prior art:

[0032] The news studio cluster system described in the embodiments of the present application, the system includes a network control layer, a service application layer, a forwarding and switching layer, and an IP audio and video terminal device layer that are all connected to the network control layer. Among them, the network control layer is used to perform unified network control and management on the forwarding and switching layer and the IP audio and video terminal device layer, and provide unified network services to the service application layer; the service application layer includes multiple service domains, and each service domain is used to provide an application-oriented user interface function, perform signal scheduling, resource management, definable function management, and system monitoring services; the forwarding and switching layer is used to provide forwarding based on real-time audio and video service flows by the service forwarding and switching matrix, and the controlled information is provided by the IP flow forwarding interface of the network control layer. Among them, the service forwarding and switching matrix is linked to the IP audio and video terminal device layer for transmitting IP signal flows; the IP audio and video terminal device layer is used to complete the processing of audio and video signals by various types of IP audio and video terminal devices, and the controlled information is provided by the IP terminal control interface of the network control layer. Through the design of the service domain, the independent autonomy of the studio is improved, the application functions can be flexibly expanded, the configuration can be adjusted, and iterative upgrades can be carried out. Moreover, one of the multiple service domains can be set as a shared domain to support the large-scale IP studio cluster sharing function and improve the resource utilization efficiency. Brief Description of the Drawings

[0033] The drawings described herein are used to provide a further understanding of the present application, and constitute a part of the present application. The illustrative embodiments and descriptions of the present application are used to explain the present application, and do not constitute an improper limitation of the present application. In the drawings:

[0034] Figure 1 is a schematic structural diagram of a news studio cluster system provided by the prior art;

[0035] Figure 2 is a schematic structural diagram of a news studio cluster system provided by an embodiment of the present application;

[0036] Figure 3 is a flowchart of a news studio cluster method provided by an embodiment of the present application. Detailed Embodiments

[0037] In order to make the technical solutions and advantages in the embodiments of the present application clearer and more understandable, the following further describes the exemplary embodiments of the present application in detail with reference to the drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than an exhaustive list of all embodiments. It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0038] Please refer to Figure 2The news studio cluster system provided in the embodiment of the present application includes a network control layer and a service application layer, a forwarding switching layer and an IP video and audio terminal device layer all connected to the network control layer, wherein:

[0039] The network control layer is used to control and manage the forwarding switching layer and the IP audio and video terminal equipment layer in a unified network, and provide unified network services to the business application layer;

[0040] The service application layer includes multiple service domains, each of which is used to provide application-oriented user interface functions, perform signal scheduling, resource management, definable function management and system monitoring services;

[0041] The forwarding switching layer is used to provide forwarding based on real-time audio and video service flows by the service forwarding switching matrix, and the controlled information is provided by the IP stream forwarding interface of the network control layer, wherein the service forwarding switching matrix is ​​linked to the IP audio and video terminal device layer for transmitting IP signal flows;

[0042] The IP video and audio terminal device layer is used to complete the processing of video and audio signals by various types of IP video and audio terminal devices, and the controlled information is provided by the IP terminal control interface of the network control layer.

[0043] In an optional embodiment of the present application, a service domain interface and an IP flow control interface are set on each service domain, each service domain is connected to the network control layer through the IP flow control interface, the service domain is a shared domain or a studio domain, each studio domain is configured with corresponding studio services at the service application layer, and corresponding forwarding devices and IP audio-visual terminal devices are configured respectively according to the characteristics of the studio services at the forwarding switching layer and the IP audio-visual terminal device layer; the shared domain is used to connect the studio domains for cross-service domain scheduling, and the service request data transmission between the shared domain and the studio domain is realized through the service domain interface, and the shared IP audio-visual terminals and other shared equipment resources used to dynamically provide services for each studio domain are connected and managed, wherein a group of service domains includes a shared domain and at least one studio domain, and in a group of service domains, each studio domain is connected to the shared domain through the service domain interface. The service application layer can provide differentiated and personalized functions for each service domain. The service domain interface set for each service domain forms an association between service domains to realize the service data interaction between the service domains. The IP flow control interface set for each service domain is connected to the IP flow control interface of the network control layer in the south direction, the IP flow scheduling requirements of the service application layer are sent to the network control layer, and the scheduling forwarding status is obtained from the network control layer.

[0044] In an optional embodiment of the present application, the news studio cluster system provided by the embodiments of the present application realizes independent autonomy of partitions with different service characteristics through service domain partitioning. A studio domain can consist of 1 studio or multiple studios with the same characteristics. Each studio domain configures an independent functional system at the service application layer, which can achieve independent functional iteration and system configuration; at the forwarding control layer and the IP audio / video layer, according to the characteristics of the studio service itself, forwarding layer devices and terminal devices are configured. The design of the studio domain realizes decoupling from other studios, and independent autonomy can achieve functions with secure boundaries and dynamic flexibility. On the one hand, the shared domain connects each studio domain for cross-service domain scheduling, provides service domain interfaces, and realizes the transfer of service request data between the shared domain and the studio domain through the service domain interfaces. On the other hand, it manages shared device resources, and these resources can dynamically provide services for each studio domain. The design of the shared domain realizes resource sharing of large-scale multi-studios under a unified network, greatly improving the centralized utilization of some resources that are not strongly related to the studio, such as IP stream new media conversion resources and network security boundary resources. It is reduced from 1 set per studio (for example, 3 sets for 3 studios) to 1 set for the entire network (1 set for 3 studios), greatly improving the equipment utilization rate, and at the same time saving the number of physical links for the external connection of the entire system, with the overhead reduced by at least more than 3 times. Therefore, each service domain can complete its respective service domain functions under the four-layer model, and through the networking of the network control layer, realize in-domain and inter-domain scheduling based on the one-network architecture, as well as dynamic horizontal expansion.

[0045] The news studio cluster system of the present application, according to the different service characteristics and device ownership of each studio, faces the business and technical requirements of full-network interconnection of uncompressed audio / video signals and compressed network media signals, conducts a full-IP design, constructs a four-layer structure of service application, network control, forwarding exchange, and IP audio / video terminal, as well as a multi-domain model of studio domain and shared domain. Among them, each layer is responsible for a specific function, each domain is independently autonomous at the service application layer and the audio / video terminal layer, and is managed in a unified network at the network control layer and the forwarding exchange layer. Internal security boundaries and policies are set for each domain. Each layer supports online expansion of the service domain. The shared domain is connected to each studio area internally, connected to external systems externally, and provides various shared resources such as audio / video and network security for each studio area. It not only improves the independent autonomy ability of the studio, can flexibly expand application functions, adjust configurations, and iterate and upgrade, but also supports large-scale IP studio cluster sharing functions, makes full use of the characteristics of IP-based interconnection, improves resource utilization efficiency, and better scales the security, flexibility, efficiency, and scalability of IP news studios.

[0046] The overall structure of the news studio cluster system of this application is functionally divided into four layers: business application, network control, forwarding and switching, and IP audio and video terminal devices. Each layer is responsible for a specific function, and the function boundaries are clear. It is divided into a shared domain and multiple studio / studio group domains according to the business domain. Each business domain is a logically independent subsystem. Under this architecture, the business domain can be horizontally extended by adding business domains.

[0047] In an optional embodiment of this application, the network control layer is provided with an IP flow control interface, an IP flow forwarding interface, and an IP terminal control interface, which are respectively used to connect to each business domain, each forwarding device in the forwarding and switching layer, and each IP audio and video terminal device in the IP audio and video terminal device layer. The network control layer is also provided with a network address switching control module and a terminal switching control module. The network address switching control module is used to push the IP signal flow from the shared domain to the studio domain, and the terminal switching control module is used to push the IP signal flow from the studio domain to the shared domain or the terminal.

[0048] In an alternative embodiment of the present application, the network control layer performs unified control and management on the forwarding and switching layer network and the IP video and audio terminal, and provides unified network services to the service application layer. Since the services provided by the network control system to the forwarding and switching layer and the service application layer are fixed, a network control system is designed at the network control layer of the entire system. The core concept of the network control layer is to separate the control plane (which determines whether and how the IP information flow is prepared to flow) from the network hardware, and to be uniformly managed by the network control system and defined by software, so as to achieve more flexible and centralized network management. The network control system of the network control layer can flexibly dock various switching mechanisms through different control modules (core switching NAT module and terminal switching IGMP NMOS module). The network control system of the network control layer can provide a network-wide view and can dynamically adjust the network to meet the requirements sent from the service layer. If a studio cluster needs to add new devices and traffic, the network control system can dynamically add and complete the IP flow interconnection and data information transfer between multiple service domains. The network control system of the network control layer provides a unified IP flow control interface (northbound) for the service application layer of each domain, receives IP flow control instructions from each service domain of the service application layer through the IP flow control interface, and comprehensively realizes signal scheduling within and between each service domain. After translating the application layer instructions, the network control layer forms routing decisions and policies and issues them to the forwarding and switching layer, thereby managing the IP traffic of the entire network. The network control system of the network control layer provides an IP flow forwarding interface (southbound) and an IP terminal control interface (southbound) for the forwarding and switching layer and the IP video and audio terminal layer. Through the IP flow forwarding interface, various switching matrices (including routing switching matrices, multicast switching matrices, etc.) are controlled to achieve admission and routing forwarding of IP flows. Through the IP terminal control interface, various video and audio terminals (using protocols such as NMOS, API, etc.) are controlled to achieve reception and transmission control of IP flows by IP flow terminals.

[0049] In an alternative embodiment of the present application, the forwarding and switching layer includes a shared domain forwarding device and a studio domain forwarding device, which are used to forward the IP signal flow of the studio domain to the IP video and audio terminal device layer. Among them, the service forwarding and switching matrix includes a routing switching matrix and a general multicast switching matrix. The shared domain forwarding device is a routing switching matrix, and the studio domain forwarding device is a general multicast switching matrix. The service forwarding and switching matrix is connected to the IP video and audio terminal device through a link for transmitting the IP signal flow.

[0050] In an alternative embodiment of the present application, the IP video and audio terminal device layer includes shared domain IP video and audio terminal devices and studio domain IP video and audio terminal devices, which are used to send and receive corresponding IP signal streams in the shared domain and the studio domain. The IP video and audio terminal device layer processes video and audio signals through various types of IP video and audio terminal devices, and the controlled information is provided by the IP terminal control interface of the network control layer.

[0051] See Figure 3 , an embodiment of the present application provides a news studio cluster application method implemented based on the above news studio cluster system. The method includes:

[0052] S100, using the service application layer to receive a user's service request, and through the IP stream control interface, sending the control switching instruction corresponding to the service request to the network control layer, and transmitting the IP signal stream corresponding to the service request;

[0053] S200, using the network control layer through the IP stream forwarding interface and the IP stream terminal control interface, and via the routing and switching matrix and the general multicast switching matrix of the forwarding and switching layer, transmitting the IP signal stream to the IP video and audio terminal device layer according to the control switching instruction;

[0054] S300, using the network control layer to obtain the switching matrix routing status feedback of the shared domain and the studio domain through the IP stream forwarding interface, and obtaining the transceiver stream information and status feedback of the IP video and audio terminal through the IP stream terminal interface;

[0055] S400, using the service application layer to obtain the information of the shared domain and studio domain IP signal streams from the network control layer through the IP stream control interface, and presenting it to the user on the interface.

[0056] In an alternative embodiment of the present application, in step S100, the using the service application layer to receive a user's service request includes:

[0057] Using the shared domain of the service application layer to send the user's service request to the studio domain in the same group as the shared domain through the service domain interface.

[0058] In an alternative embodiment of the present application, in step S100, the sending the control switching instruction corresponding to the service request to the network control layer through the IP stream control interface and transmitting the IP signal stream corresponding to the service request includes:

[0059] Using the studio domain of the service application layer to send the control switching instruction corresponding to the service request to the network control layer through the IP stream control interface, and transmitting the IP signal stream of the IP video and audio terminal corresponding to the service request.

[0060] In an optional embodiment of the present application, in step S200, the utilization of the network control layer to transmit the IP signal stream to the IP audio and video terminal device layer through the IP flow forwarding interface and the IP flow terminal control interface according to the control switching instruction via the routing and switching matrix and the general multicast switching matrix of the forwarding and switching layer includes:

[0061] Using the terminal switching control module of the network control layer, pushing the IP signal stream of the studio domain from the multicast switching matrix of the studio domain to the shared domain routing and switching matrix;

[0062] Using the network address switching control module of the network control layer, pushing the IP signal stream in the shared domain routing and switching matrix to the multicast switching matrix of the studio domain;

[0063] Using the terminal switching control module of the network control layer, switching the IP signal stream of the multicast switching matrix of the studio domain to the IP audio and video terminal layer.

[0064] In an optional embodiment of the present application, the method further includes:

[0065] Using the shared domain of the service application layer to connect each studio domain of the service application layer, perform cross-service domain scheduling, realize the transfer of service request data between the shared domain and the studio domain through the service domain interface, and connect and manage the shared IP audio and video terminals and other shared device resources for dynamically providing services to each studio domain.

[0066] In an optional embodiment of the present application, taking the C01 studio as the core audio and video production system, calling the IP audio and video terminal CAM signal streams of the C08 and C13 studios, calling the new media conversion signal stream of the shared IP audio and video terminal, and using the switching device of the C01 studio to jointly produce signals of multiple studios as an example, where the CAM signal is the original signal of the camera, the specific implementation process is as follows:

[0067] First, the user initiates a service request through the visualization interface of the shared domain of the service application layer. The service request is a scheduling request to initiate the CAM signal streams of the C08 and C13 studios to the C01 studio. The scheduling request is notified to studio domains 1, 2, and 3 by the service application system of the shared domain through the service domain interface. The C01 studio in studio domain 1 is notified to prepare to receive the signal, the C08 studio in studio domain 2 is notified to prepare to send the CAM signal, and the C13 studio in studio domain 3 is notified to prepare to send the CAM signal;

[0068] Second, the service application layer issues a control switching instruction to the network control layer through the IP flow control interface.

[0069] The business application system in the studio domain 2 issues commands to the network control system in the network control layer through the IP stream control interface, scheduling the IP audio and video terminal - C08 CAM signal stream to Studio C01;

[0070] The business application system in the studio domain 3 issues commands to the network control system in the network control layer through the IP stream control interface, scheduling the IP audio and video terminal - C13 CAM signal stream to Studio C01;

[0071] The business application system in the shared domain issues commands to the network control system in the network control layer through the IP stream control interface, scheduling the IP audio and video terminal - new media conversion signal stream to Studio C01;

[0072] The business application system in the studio domain 1 issues commands to the network control system in the network control layer through the IP stream control interface, scheduling the new media conversion signal stream, C08 CAM signal stream, and C13 CAM signal stream to Switching Console C01.

[0073] Third, the network control layer issues routing scheduling and terminal switching commands through the IP stream forwarding interface and the IP stream terminal interface.

[0074] The terminal switching control module in the network control layer pushes the C08 CAM signal stream in the studio domain 2 from the multicast switching matrix in the studio domain 2 to the routing switching matrix in the shared domain, and pushes the C13 CAM signal stream in the studio domain 3 from the multicast switching matrix in the studio domain 3 to the routing switching matrix in the shared domain; (C08 and C13 -> shared);

[0075] The network address switching control module in the network control layer pushes the C08 CAM signal stream and C13 CAM signal stream that have been pushed to the routing switching matrix in the shared domain from the routing switching matrix in the shared domain to the multicast switching matrix in the studio domain 1; (shared -> C01)

[0076] The NAT (Network Address Translation) core switching control module of the network control pushes the new media conversion signal stream in the shared domain to the multicast switching matrix in the studio domain 1; (shared -> C01)

[0077] The IGMP NMOS terminal switching control module of the network control switches the new media conversion signal stream, C08 CAM signal stream, and C13 CAM signal stream that have been pushed to the multicast switching matrix in the studio domain 1 to the C01 IP audio and video terminal - switching console; (C01 -> switching console terminal)

[0078] Fourth, the network control layer obtains the switching matrix routing status feedback of the shared domain, studio domains 1, 2, and 3 through the IP stream forwarding interface; the network control layer obtains the transceiver stream information and status feedback of relevant IP audio and video terminals through the IP stream terminal interface.

[0079] Fifth, the service application layer obtains information such as the IP flow scheduling path, handover status, etc. of shared new media conversion, C08 CAM signal, and C13 CAM from the network control layer through the IP flow control interface, and finally presents it to the user on the interface.

[0080] The news studio cluster application method of the present application is based on the "four-layer multi-domain" new architecture of networked security management and control for large-scale news studio systems, solving the problems of inability to achieve domain-autonomous services in existing studio cluster solutions, sharing of cross-studio group signals and device resources, and also solving the limitation problem that traditional studio groups cannot achieve cross-studio group production-level video and audio multi-stream interconnection independent of geographical location, providing new ideas for the construction, application, and promotion of large-scale news studio platform systems.

[0081] The news studio cluster application method of the present application provides a more flexible, scalable, and de-grouped reconstruction solution with clear security boundaries. The proposed shared service domain working mode enables a large number of non-studio fixed resources to be fully and efficiently utilized. The non-fixed resources are transformed into a shared device reuse mode under the networked architecture. Compared with the traditional SDI studio separate deployment, the investment is reduced by more than 60% (at least supporting the centralization of 3 studios), and the system's external physical link overhead is reduced by 60% (at least supporting the centralization of 3 studios), changing the dilemma of configuring full resources for each studio group with low utilization rate, and greatly saving the system's capital investment.

[0082] It should be understood that although the steps in the flowchart are shown sequentially according to the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless clearly stated in this article, there is no strict order restriction for the execution of these steps, and these steps can be executed in other orders. Moreover, at least a part of the steps in the figure may include multiple sub-steps or multiple stages. These sub-steps or stages are not necessarily executed at the same time, but can be executed at different times. The execution order of these sub-steps or stages is not necessarily sequential, but can be executed alternately or in turn with at least a part of other steps or sub-steps or stages of other steps.

[0083] Although the preferred embodiments of the present application have been described, those skilled in the art can make additional changes and modifications once they know the basic creative concept. Therefore, the appended claims are intended to be construed as including the preferred embodiments and all changes and modifications falling within the scope of the present application.

[0084] Obviously, those skilled in the art can make various changes and modifications to this application without departing from the spirit and scope of this application. Thus, if these modifications and variations of this application fall within the scope of the claims of this application and their equivalent technologies, this application is also intended to include these changes and modifications.

Claims

1. A news studio cluster system, characterized in that, The system includes a network control layer, a service application layer, a forwarding and switching layer, and an IP video and audio terminal device layer, all of which are connected to the network control layer. Among them, the network control layer is used to perform unified network control and management on the forwarding and switching layer and the IP video and audio terminal device layer, and provide unified network services to the service application layer; the service application layer includes multiple service domains, and each service domain is used to provide user interface functions for applications, perform signal scheduling, resource management, definable function management, and system monitoring services; the forwarding and switching layer is used to provide forwarding based on real-time video and audio service flows by a service forwarding and switching matrix, and the controlled information is provided by the IP flow forwarding interface of the network control layer. Among them, the service forwarding and switching matrix is linked to the IP video and audio terminal device layer for transmitting IP signal flows; the IP video and audio terminal device layer is used to process video and audio signals by various types of IP video and audio terminal devices, and the controlled information is provided by the IP terminal control interface of the network control layer.

2. The system according to claim 1, wherein A service domain interface and an IP flow control interface are set on each service domain. Each service domain is connected to the network control layer through the IP flow control interface. The service domain is a shared domain or a studio domain. Each studio domain configures corresponding studio services in the service application layer, and in the forwarding and switching layer and the IP video and audio terminal device layer, corresponding forwarding devices and IP video and audio terminal devices are configured according to the characteristics of the studio services; The shared domain is used to connect each studio domain for cross-service domain scheduling, realize the transfer of service request data between the shared domain and the studio domain through the service domain interface, and connect and manage the shared IP video and audio terminals and other shared device resources that dynamically provide services for each studio domain. Among them, a group of service domains includes a shared domain and at least one studio domain. In a group of service domains, each studio domain is connected to the shared domain through the service domain interface.

3. The system according to claim 1, wherein The network control layer is provided with an IP flow control interface, an IP flow forwarding interface, and an IP terminal control interface, which are respectively used to connect to each service domain, each forwarding device of the forwarding and switching layer, and each IP video and audio terminal device of the IP video and audio terminal device layer. The network control layer is also provided with a network address switching control module and a terminal switching control module. The network address switching control module is used to push the IP signal flow from the shared domain to the studio domain, and the terminal switching control module is used to push the IP signal flow from the studio domain to the shared domain or the terminal.

4. The system according to claim 1, wherein The forwarding and switching layer includes a shared domain forwarding device and a studio domain forwarding device, which are used to forward the IP signal flow of the studio domain to the IP video and audio terminal device layer. Among them, the service forwarding and switching matrix includes a routing and switching matrix and a general multicast switching matrix. The shared domain forwarding device is the routing and switching matrix, and the studio domain forwarding device is the general multicast switching matrix.

5. The system according to claim 1, characterized in that, The IP video and audio terminal device layer includes a shared domain IP video and audio terminal device and a studio domain IP video and audio terminal device, which are used to send and receive the IP signal flows of the corresponding shared domain and studio domain.

6. A news studio cluster application method implemented based on the news studio cluster system according to any one of claims 1-5, characterized in that, The method includes: The service application layer is used to receive the service requests from users, and through the IP flow control interface, send the control switching instructions corresponding to the service requests to the network control layer, and transmit the IP signal flow corresponding to the service requests; The network control layer is used to transmit the IP signal flow to the IP audio and video terminal device layer via the routing and switching matrix and the general multicast switching matrix of the forwarding and switching layer according to the control switching instructions through the IP flow forwarding interface and the IP flow terminal control interface; The network control layer is used to obtain the switching matrix routing status feedback of the shared domain and the studio domain through the IP flow forwarding interface, and obtain the transceiver flow information and status feedback of the IP audio and video terminal through the IP flow terminal interface; The service application layer is used to obtain the information of the IP signal flow in the shared domain and the studio domain from the network control layer through the IP flow control interface, and present it to the user on the interface.

7. The method according to claim 6, wherein The use of the service application layer to receive the service requests from users includes: The shared domain of the service application layer is used to send the service requests from users to the studio domain in the same group as the shared domain through the service domain interface.

8. The method according to claim 6, characterized in that, The sending of the control switching instructions corresponding to the service requests to the network control layer and the transmission of the IP signal flow corresponding to the service requests through the IP flow control interface include: The studio domain of the service application layer is used to send the control switching instructions corresponding to the service requests to the network control layer through the IP flow control interface, and transmit the IP signal flow of the IP audio and video terminal corresponding to the service requests.

9. The method according to claim 6, wherein The use of the network control layer to transmit the IP signal flow to the IP audio and video terminal device layer via the routing and switching matrix and the general multicast switching matrix of the forwarding and switching layer according to the control switching instructions through the IP flow forwarding interface and the IP flow terminal control interface includes: The terminal switching control module of the network control layer is used to push the IP signal flow of the studio domain from the multicast switching matrix of the studio domain to the shared domain routing and switching matrix; The network address switching control module of the network control layer is used to push the IP signal flow in the shared domain routing and switching matrix to the multicast switching matrix of the studio domain; The terminal switching control module of the network control layer is used to switch the IP signal flow of the multicast switching matrix of the studio domain to the IP audio and video terminal layer.

10. The method according to claim 6, characterized in that, The method further includes: The shared domain of the service application layer is used to connect the studio domains of the service application layer, perform cross-service domain scheduling, realize the service request data transfer between the shared domain and the studio domain through the service domain interface, and connect and manage the shared IP audio and video terminals and other shared device resources for dynamically providing services to each studio domain.

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