An ultra-high-definition digital performance second live program gathering and distribution system

Abstract

The application provides an ultra-high-definition digital performance second live program gathering and distribution system, a collection module encodes original video signals, and sends the encoded video signals to a data processing module through an internet channel to be encrypted, a data distribution module sends the encrypted video signals to a target terminal device through the internet channel to be decrypted and decoded to obtain the original video signals; the system can collect the original video signals by using at least one of an 8K ultra-high-definition camera, a 4K ultra-high-definition camera and a high-frame-rate camera, greatly improves the picture quality of the original video signals, and the data distribution module can efficiently distribute the encrypted video signals to the target terminal device through the internet channel, improves the delay problem of transmission and distribution, and in addition, the data processing module can encrypt the encoded video signals to provide an effective copyright protection mechanism and avoid illegal rebroadcasting and other infringement behaviors.

Description

Technical Field

[0001] This invention relates to the field of signal processing technology, and in particular to an ultra-high-definition digital entertainment second-stage program aggregation and distribution system. Background Technology

[0002] With the development of ultra-high-definition video technology, audiences' demands for visual experiences in live performances, sporting events, and other entertainment activities are constantly increasing. Simply watching live is no longer sufficient to meet audience needs; simultaneous broadcasting across multiple venues via live streaming or on-demand video has become a new trend. Currently, related technologies primarily involve broadcasting video through television stations, mainly using satellite channels for signal transmission. However, this method is expensive due to the need for dedicated receiving equipment. Existing technologies can also transmit signals via internet channels, but the transmission and distribution of program signals from the venue to various playback points suffers from delays, reduced picture quality, and a lack of effective copyright protection mechanisms, making it susceptible to illegal rebroadcasting and other infringements. Summary of the Invention

[0003] The purpose of this invention is to provide an ultra-high-definition digital performing arts second-stage program aggregation and distribution system to improve the problems of delay and image quality degradation in signal transmission and distribution, and to provide a copyright protection mechanism to avoid infringement such as illegal rebroadcasting.

[0004] This invention provides an ultra-high-definition digital performing arts second-stage program aggregation and distribution system. The system includes: a acquisition module, used to acquire the original video signal corresponding to a first event venue through a designated camera, encode the original video signal to obtain an encoded video signal, and send the encoded video signal to a data processing module via an internet channel; wherein the designated camera includes at least one of the following: an 8K ultra-high-definition camera, a 4K ultra-high-definition camera, and a high frame rate camera; a data processing module, used to encrypt the encoded video signal to obtain an encrypted video signal; a data distribution module, used to send the encrypted video signal to a target terminal device via an internet channel; the target terminal device is used to decrypt and decode the encrypted video signal to obtain the original video signal; wherein the target terminal device has the right to use the original video signal.

[0005] Furthermore, the acquisition module includes: a first camera for acquiring high-resolution video signals from the first event site; wherein the first camera includes: an 8K ultra-high-definition camera and a 4K ultra-high-definition camera; a high frame rate camera for acquiring high frame rate video signals from fast-moving scenes; an ultra-high-definition on-site switcher for switching and combining the high-resolution video signal and the high frame rate video signal to obtain the original video signal; an encoding device for encoding the original video signal according to a preset first encoding format to obtain the encoded video signal; and a transmission device for sending the encoded video signal to the data processing module via an internet channel.

[0006] Furthermore, the data processing module is also used to: receive multiple encoded video signals corresponding to multiple event sites; and transcode and encrypt the multiple encoded video signals to obtain multiple encrypted video signals.

[0007] Furthermore, the data processing module also includes: a signal receiving unit for receiving multiple encoded video signals corresponding to multiple event sites; a transcoding module for transcoding the multiple encoded video signals according to a preset second encoding format to obtain multiple transcoded video signals; an encryption module for encrypting the multiple transcoded video signals to obtain multiple encrypted video signals; and a storage unit for storing the multiple encrypted video signals.

[0008] Furthermore, the encryption module is used to encrypt multiple transcoded video signals separately using digital rights management standards, resulting in multiple encrypted video signals.

[0009] Furthermore, the data distribution module includes: a program distribution module, used to obtain the transmission parameters corresponding to the target terminal device, and transmit the encrypted video signal to the content distribution network module according to the transmission parameters; the content distribution network module is used to send the encrypted video signal to the edge server through the Internet channel, so that the edge server can send the encrypted video signal to the target terminal device.

[0010] Furthermore, the system also includes a program-on-demand module; the program-on-demand module is used to: acquire multiple encrypted video signals stored in the storage unit; receive a first processing request from the target terminal device through a web page and / or APP client, and process the acquired multiple encrypted video signals according to the first processing request; wherein, the first processing request includes at least one of the following: a search request, a browsing request, and an on-demand request; if the first processing request is an on-demand request, acquire the verification information corresponding to the target terminal device, compare the verification information with a pre-stored authorization list, and obtain a comparison result; if the comparison result indicates that the target terminal device has on-demand permission, acquire the target video signal corresponding to the on-demand request, and send the target video signal to the target terminal device; the target terminal device is used to decrypt and decode the target video signal to obtain the video signal corresponding to the on-demand request.

[0011] Furthermore, the highest resolution corresponding to the first camera is 7680x4320, and the highest frame rate is 120 frames per second.

[0012] Furthermore, the highest frame rate corresponding to a high frame rate camera is 120 frames per second.

[0013] Furthermore, the target terminal device is the terminal corresponding to the theater screen.

[0014] This invention provides an ultra-high-definition digital performing arts second-stage program aggregation and distribution system. The acquisition module is used to acquire the original video signal corresponding to a first event venue through a designated camera, encode the original video signal to obtain an encoded video signal, and send the encoded video signal to a data processing module via an internet channel. The designated camera includes at least one of the following: an 8K ultra-high-definition camera, a 4K ultra-high-definition camera, and a high frame rate camera. The data processing module is used to encrypt the encoded video signal to obtain an encrypted video signal. The data distribution module is used to send the encrypted video signal to a target terminal device via an internet channel. The target terminal device is used to decrypt and decode the encrypted video signal to obtain the original video signal. The target terminal device has the right to use the original video signal. This system can use at least one of 8K ultra-high-definition cameras, 4K ultra-high-definition cameras, and high frame rate cameras to capture raw video signals, significantly improving the picture quality of the raw video signals. Furthermore, the data distribution module transmits signals through the Internet channel, which can efficiently distribute the encrypted video signals to the target terminal devices, improving the latency issues of transmission and distribution. In addition, the data processing module encrypts the encoded video signals, providing an effective copyright protection mechanism to prevent infringement such as illegal rebroadcasting. Attached Figure Description

[0015] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 A schematic diagram of an ultra-high-definition digital performing arts second-stage program aggregation and distribution system provided in an embodiment of the present invention; Figure 2 A schematic diagram of another ultra-high-definition digital performing arts second-stage program aggregation and distribution system provided in an embodiment of the present invention; Figure 3 A schematic diagram of a stream aggregation and broadcasting system provided in an embodiment of the present invention; Figure 4 A schematic diagram of a user and digital rights management system provided in an embodiment of the present invention; Figure 5 A schematic diagram of a transmission and distribution system provided in an embodiment of the present invention; Figure 6 A schematic diagram of another ultra-high-definition digital performing arts second-stage program aggregation and distribution system provided in an embodiment of the present invention; Figure 7 This is a schematic diagram of another ultra-high-definition digital performing arts second-stage program aggregation and distribution system provided in an embodiment of the present invention. Detailed Implementation

[0017] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] In related technologies, video is mainly broadcast through television stations, lacking live distribution channels for theaters. Furthermore, the technology system based on television stations protects the transmission channel; after the video is broadcast from the station, the transmission channel is encrypted, requiring users' home terminals to decrypt all content on the transmission channel. The decrypted content is unprotected by encryption. In summary, existing live program production and distribution technologies have many limitations, specifically as follows: 1. It cannot flexibly meet the viewing needs of different venues and different audiences, and it lacks on-demand functionality.

[0019] 2. There are problems such as delays and degraded picture quality in the transmission and distribution of program signals from the site to various playback points.

[0020] 3. The lack of an effective copyright protection mechanism makes it easy for infringements such as illegal rebroadcasting to occur.

[0021] Based on this, embodiments of the present invention provide an ultra-high-definition digital performing arts second-stage program aggregation and distribution system, which can be applied to scenarios requiring live streaming of video signals.

[0022] To facilitate understanding of this embodiment, the ultra-high-definition digital performing arts second-stage program aggregation and distribution system disclosed in this embodiment will first be introduced, such as... Figure 1 As shown, the system includes: The acquisition module is used to acquire the original video signal corresponding to the first event site through a designated camera, encode the original video signal to obtain the encoded video signal, and send the encoded video signal to the data processing module through the Internet channel; wherein, the designated camera includes at least one of the following: an 8K ultra-high-definition camera, a 4K ultra-high-definition camera, and a high frame rate camera.

[0023] The aforementioned 8K ultra-high-definition camera is a recording device capable of capturing and recording extremely high-definition images; its 8K resolution reaches 7680×4320 pixels, providing more detailed and realistic image quality. The aforementioned 4K ultra-high-definition camera is a network camera that uses a high-resolution image sensor, providing extremely clear and detailed image quality, with a resolution of 3840×2160 pixels. The aforementioned high frame rate camera is a special camera capable of recording images at extremely high frame rates, typically capturing 1000 to 10000 frames per second. This type of camera provides clearer and more stable footage when capturing fast-moving objects. In practical implementation, the acquisition module is mainly responsible for ultra-high-definition video acquisition and on-site production of live performances, competitions, and other activities. Specifically, it can acquire video from the event site using one or more of 8K ultra-high-definition cameras, 4K ultra-high-definition cameras, and high frame rate cameras to obtain the raw video signal. To facilitate transmission, the raw video signal can be encoded to reduce its size. Specifically, compression can be achieved by removing redundant information in the video, such as spatial redundancy and temporal redundancy, to obtain the encoded video signal. The encoded video signal can then be sent to the data processing module via the Internet channel.

[0024] The data processing module encrypts the encoded video signal to obtain an encrypted video signal. The data distribution module transmits the encrypted video signal to the target terminal device via an internet channel. In practical implementation, to protect the security and copyright of the video content and prevent unauthorized access and copying, encryption technology is used to encrypt the encoded video signal, resulting in an encrypted video signal. Only authorized target terminal devices can decrypt the encrypted video signal, thus ensuring the confidentiality and integrity of the video. The encrypted video signal is then sent to the data distribution module, which can transmit it to the target terminal device, such as a terminal corresponding to a theater screen, via an internet channel.

[0025] The target terminal device is used to decrypt and decode the encrypted video signal to obtain the original video signal; the target terminal device has the right to use the original video signal.

[0026] In practice, when the target terminal device has permission to use the original video signal, it can be allowed to decrypt the encrypted video signal to obtain the decrypted video signal. The decrypted video signal can then be decoded to restore the encoded video signal to the original video signal for display and playback on the target terminal device.

[0027] The aforementioned ultra-high-definition digital performing arts second-stage program aggregation and distribution system comprises the following modules: The acquisition module acquires the original video signal corresponding to the first event venue using designated cameras, encodes the original video signal to obtain an encoded video signal, and sends the encoded video signal to the data processing module via an internet channel; the designated cameras include at least one of the following: an 8K ultra-high-definition camera, a 4K ultra-high-definition camera, and a high frame rate camera; the data processing module encrypts the encoded video signal to obtain an encrypted video signal; the data distribution module sends the encrypted video signal to a target terminal device via an internet channel; the target terminal device decrypts and decodes the encrypted video signal to obtain the original video signal; and the target terminal device has the authority to use the original video signal. This system can use at least one of 8K ultra-high-definition cameras, 4K ultra-high-definition cameras, and high frame rate cameras to capture raw video signals, significantly improving the picture quality of the raw video signals. Furthermore, the data distribution module transmits signals through the Internet channel, which can efficiently distribute the encrypted video signals to the target terminal devices, improving the latency issues of transmission and distribution. In addition, the data processing module encrypts the encoded video signals, providing an effective copyright protection mechanism to prevent infringement such as illegal rebroadcasting.

[0028] Furthermore, the acquisition module includes a first camera for acquiring high-resolution video signals from the first event site; wherein the first camera includes an 8K ultra-high-definition camera and a 4K ultra-high-definition camera; this embodiment uses the latest 8K ultra-high-definition camera and 4K ultra-high-definition camera, which can capture a resolution of up to 7680x4320, with a frame rate of up to 60 frames per second, and even a maximum frame rate of 120 frames per second, with fine and delicate image quality, which can fully restore the details and dynamics of the first event site.

[0029] High frame rate cameras are used to capture high frame rate video signals in fast-moving scenes. First, there may be fast-moving scenes at the event site. For events that need to capture fast-moving scenes, such as sports events, high frame rate cameras that support a maximum frame rate of 120 frames per second can be used, which can greatly improve the smoothness and dynamic performance of the picture.

[0030] An ultra-high-definition (UHD) on-site switcher is used to switch and synthesize high-resolution video signals and high-frame-rate video signals to obtain the original video signal. This UHD on-site switcher can be a professional on-site switcher that supports 8K / 4K UHD input and output. It can receive high-resolution video signals captured by a first camera and high-frame-rate video signals captured by a high-frame-rate camera. It can also realize on-site production functions such as real-time switching and special effects compositing of multiple received UHD video sources to obtain the original video signal.

[0031] The encoding device is used to encode the original video signal according to a preset first encoding format to obtain the encoded video signal. The first encoding format can be set according to actual needs, such as H.265. In actual implementation, the encoding device can convert the original video signal into the standard first encoding format, and can also support real-time encoding output and offline file output, and send the obtained encoded video signal to the transmission device.

[0032] The transmission equipment is used to send the encoded video signal to the data processing module via an internet channel. After receiving the encoded video signal, the transmission equipment can transmit the encoded video signal to the data processing module via a high-speed internet channel.

[0033] Furthermore, the data processing module is also used to: receive multiple encoded video signals corresponding to multiple event venues; and transcode and encrypt the multiple encoded video signals to obtain multiple encrypted video signals. This data processing module can realize the convergence processing of multiple encoded video signals corresponding to multiple event venues. Specifically, it can receive multiple encoded video signals from multiple event venues and perform unified transcoding and encryption processing, providing support for subsequent distribution and on-demand processes.

[0034] Furthermore, the data processing module also includes: The signal receiving unit is used to receive multiple encoded video signals corresponding to multiple event sites. This signal receiving unit can support the parallel reception of multiple video signals, has a high-speed network interface and large-capacity storage, and can stably and reliably receive and cache various program sources. As a public network receiving device, this signal receiving unit usually needs to have a fixed IP address that can be accessed on the Internet.

[0035] The transcoding module is used to transcode multiple encoded video signals according to a preset second encoding format, resulting in multiple transcoded video signals. This second encoding format can be set according to actual needs and may be the same as or different from the first encoding format. In actual implementation, the multiple encoded video signals received by the transcoding module typically use different encoding formats and parameters. This transcoding module can uniformly convert them into a unified format suitable for distribution and on-demand playback, such as 4K / 60p H.265. It can also support transcoding output at various bitrates and resolutions to meet the playback requirements of different target terminal devices. This transcoding module is usually deployed on the same device as the signal receiving unit.

[0036] The encryption module is used to encrypt multiple transcoded video signals separately, resulting in multiple encrypted video signals. Specifically, this encryption module uses a digital rights management (DRM) standard to encrypt multiple transcoded video signals separately, resulting in multiple encrypted video signals. In this embodiment, to protect program copyright, the system is equipped with an encryption module based on ChinaDRM. This encryption module can encrypt multiple transcoded video signals separately, and only authorized target terminal devices can decrypt and play them.

[0037] The storage unit is used to store multiple encrypted video signals. In this embodiment, the system is configured with a large-capacity storage unit to store the encrypted video signals corresponding to each event location. These encrypted video signals can be stored long-term and support on-demand services.

[0038] This data processing module is equipped with dedicated program management software for unified management of the entire process of receiving, storing, encoding, transcoding, and encrypting various program sources. It also supports the editing and retrieval of program metadata, providing support for subsequent program distribution and on-demand services. Program metadata refers to descriptive information about program content, including program name, type, and duration. This information is crucial for program classification, searching, and recommendation.

[0039] In summary, the main functions of the data processing module are: receiving ultra-high-definition program signals from various locations, performing unified video encoding and transcoding, implementing copyright protection for video content, and providing long-term storage and management of programs.

[0040] Furthermore, the data distribution module is responsible for distributing the encrypted video signal output by the data processing module to various terminal devices via the internet channel; the data distribution module includes: The program distribution module is used to obtain the transmission parameters corresponding to the target terminal device and transmit the encrypted video signal to the content distribution network module according to the transmission parameters. The transmission parameters may include parameters such as bit rate and resolution. In actual implementation, the program distribution module can receive the encrypted video signal from the data processing module, package it according to the needs of the target terminal device using appropriate transmission parameters such as bit rate and resolution, and transmit it to the content distribution network module. It supports both real-time distribution and on-demand modes.

[0041] The Content Delivery Network (CDN) module transmits encrypted video signals to edge servers via internet channels, which then forward the encrypted video signals to the target terminal devices. Edge servers are a distributed computing architecture where data processing occurs at the network edge, typically deployed closer to the target terminal devices. This significantly reduces data transmission time and latency. In this embodiment, to ensure the quality and stability of video signal transmission, the CDN module utilizes CDN technology to cache the encrypted video signals on edge servers nationwide or even globally, providing services to terminal devices from the nearest location and improving transmission speed and reliability.

[0042] In practice, the program distribution process can be managed and scheduled by a dedicated control system. This control system can dynamically adjust the distribution strategy based on the type of target terminal device and network status to optimize transmission performance, while also supporting real-time monitoring and fault pre-processing. For example, if the network condition is poor and the packet loss rate is high, the bitrate can be appropriately reduced. Multiple bitrates corresponding to different network conditions can be pre-configured according to actual needs. The transmission process can be dynamically monitored in real time. The network condition can be judged based on the latency and packet loss of the files received by the target terminal device. For example, if 99% of the data packets arrive at the target terminal device within 20ms, the network condition can be considered good, and the highest bitrate can be used in this case.

[0043] Furthermore, the system also includes a program-on-demand module; this module provides viewers with a rich selection of program-on-demand services to meet the personalized needs of different viewers. The program-on-demand module is used for: The system retrieves multiple encrypted video signals stored in the storage unit. In actual implementation, the system can retrieve and store the multiple encrypted video signals stored in the storage unit through a video-on-demand server, and provide video-on-demand services to end users. This video-on-demand server can support 8K / 4K ultra-high-definition video-on-demand, and can also provide bitstream conversion of different resolutions and bitrates to adapt to the playback requirements of different terminal devices.

[0044] The system receives a first processing request from a target terminal device via a web page and / or an app client, and processes multiple encrypted video signals obtained according to the first processing request; wherein the first processing request includes at least one of the following: a search request, a browsing request, and a video-on-demand request. The on-demand server can provide a portal website, which is an application system that provides comprehensive internet information resources and related information services. This portal website can be accessed via a web page. An app client is an application installed on a mobile device. In practice, users can use the portal website provided by the on-demand server to find, browse, and stream programs of interest. This portal website supports rich program metadata retrieval functions and provides personalized recommendations to enhance the user experience. In addition to the web page, the on-demand module also provides an app client, which can be installed on smart TVs, tablets, and other terminal devices to provide users with a richer interactive experience. The app client supports local caching and offline viewing functions.

[0045] If the first processing request is a video-on-demand request, obtain the verification information corresponding to the target terminal device, compare the verification information with the pre-stored authorization list, and obtain the comparison result; The aforementioned verification information may include information such as the device type and serial number of the target terminal device. The aforementioned authorization list typically stores all authorized terminal devices. For example, if a user purchases playback permissions for a terminal device, the relevant device information of that terminal device will be stored in the authorization list. In actual implementation, to ensure copyright security, the on-demand server needs to introduce an authorization and authentication system. When a video-on-demand request is received from a target terminal device, the verification information of the target terminal device can be obtained first and compared with the authorization list. If the authorization list contains the verification information of the target terminal device, it can be considered that the target terminal device has on-demand permissions. If the authorization list does not contain the verification information of the target terminal device, it can be considered that the target terminal device does not have on-demand permissions.

[0046] If the comparison result indicates that the target terminal device has on-demand permission, the target video signal corresponding to the on-demand request is obtained and sent to the target terminal device; the target terminal device is used to decrypt and decode the target video signal to obtain the video signal corresponding to the on-demand request.

[0047] If the comparison result indicates that the target terminal device has on-demand permissions, the target video signal corresponding to the on-demand request can be extracted from the multiple encrypted video signals stored and sent to the target terminal device. After decryption and decoding, the requested video signal can be obtained. In practical applications, if the target terminal device has on-demand permissions, the public key can be used to encrypt the encryption key corresponding to the target video signal to form a certificate. The target terminal device needs to use the private key that matches the public key to decrypt it in order to obtain the encryption key, and then decrypt it according to the decryption method in the certificate. The above authentication process works closely with the encryption module in the data processing module.

[0048] In summary, the main functions of the program-on-demand module are: to provide program-on-demand resources; to support on-demand services for various terminal devices; and to realize copyright protection and authorization of program content.

[0049] The aforementioned ultra-high-definition digital performing arts second-stage program aggregation and distribution system will utilize a copyright management system to manage and protect the copyright of program content throughout the entire process, primarily including: (1) Digital Rights Management (DRM), based on the ChinaDRM standard, encrypts and protects video information in the data processing module to ensure that only authorized terminal devices and users can decrypt and play the video.

[0050] (2) Authorization Management: Through the authorization management subsystem, corresponding playback permissions can be assigned to different users or terminal devices (for example, a user purchases a one-time playback permission or a one-week playback permission, etc.) to prevent unauthorized viewing; at the same time, it supports multiple authorization modes such as temporary authorization and subscription.

[0051] (3) Copyright monitoring: Continuously monitor the use of program content on various terminal devices and network platforms. Once unauthorized infringement is discovered, corresponding protective measures can be taken in a timely manner.

[0052] (4) Copyright transactions provide a trading platform for content copyright holders, supporting the entire process of program copyright pricing, sales, and settlement management. Transaction data can provide a basis for subsequent copyright operations.

[0053] In summary, copyright management is an indispensable and important component of this solution. It ensures the copyright security of program content throughout the entire usage chain, providing reliable rights protection for content providers and users.

[0054] The aforementioned ultra-high-definition digital performing arts second-stage program aggregation and distribution system uses 8K / 4K ultra-high-definition cameras and high frame rate cameras with a maximum frame rate of 120 frames per second, which greatly improves the visual quality of the live programs and can bring the audience an immersive viewing experience; at the same time, it uses a professional ultra-high-definition switcher for live production, ensuring the professionalism of program production.

[0055] This system can also perform unified program aggregation and distribution. The data processing module can centrally receive encoded video signals from various event venues, perform unified encoding transcoding, DRM encryption, and other processing to form standardized program resources. Then, through technologies such as CDN, the encrypted video signals are efficiently distributed to various terminal playback points, ensuring quality and stability.

[0056] In addition to live streaming, this system also provides a vast library of on-demand programs. Users can search, browse, and stream ultra-high-definition content of interest through the portal website or mobile app, greatly enhancing the user experience.

[0057] This system employs a robust copyright protection mechanism, utilizing ChinaDRM's digital rights management technology to implement end-to-end encryption protection for program content. It also supports flexible authorization management and copyright monitoring, effectively preventing the illegal use of program content.

[0058] In addition, the above system has the following advantages: This system enhances the viewing experience by employing 8K / 4K ultra-high-definition technology and 120 frames per second high frame rate technology, significantly improving the picture quality and smoothness of the program and bringing viewers an immersive visual experience. In addition, the rich on-demand services meet the personalized needs of different viewers.

[0059] The system also protects content copyright by encrypting content over the internet, which can only be decrypted by authorized devices. By employing a secure and robust DRM encryption and authorization management mechanism, it effectively protects the copyright of program content, prevents illegal use and infringement, and safeguards the legitimate rights and interests of content providers and users.

[0060] This system also improves operational efficiency. The unified program aggregation and distribution process greatly simplifies the entire process from on-site production to broadcast, thus increasing work efficiency. At the same time, the rich program resource library brings new possibilities for subsequent operation and commercial monetization.

[0061] The system is also highly compatible, making full use of existing ultra-high-definition video equipment and seamlessly integrating with it to achieve a smooth transition; at the same time, it supports the playback needs of various terminal devices, leaving ample room for future development.

[0062] In summary, this solution's ultra-high-definition digital performing arts second-stage program aggregation and distribution system integrates advanced video acquisition, encoding, transmission, storage, and DRM protection technologies to achieve high-quality live program aggregation, distribution, and on-demand services. It features significant innovations and optimizations in video quality, copyright protection, and user experience, providing a brand-new solution for live program production and dissemination. The system greatly improves video quality and user experience while effectively protecting content copyright, offering a completely new solution for live program production and dissemination. Utilizing advanced 8K / 4K ultra-high-definition and high frame rate video acquisition technologies, the system significantly enhances video quality and smoothness, providing viewers with an immersive viewing experience. Simultaneously, the comprehensive program aggregation, distribution, and on-demand mechanisms, along with end-to-end copyright protection based on ChinaDRM, ensure the safe dissemination of content and protect the legitimate rights and interests of users.

[0063] To facilitate understanding, the following explanation uses a theatrical performance as an example to describe the workflow of the ultra-high-definition digital performing arts second-stage program aggregation and distribution system. At the theatrical performance site, 8K ultra-high-definition cameras and a professional ultra-high-definition live switcher are used to capture and process ultra-high-definition video of the performance. Encoding equipment converts the captured video signals into H.265 format and transmits them over the network to the program aggregation system (corresponding to the data processing module mentioned above).

[0064] The receiving server of the program aggregation system (corresponding to the signal receiving unit mentioned above) receives program signals from the site and transcodes them into 4K / 60p H.265 encoding format for synchronous storage. Both the pre- and post-transcoding video files undergo copyright protection processing via a DRM encryption module before being stored on the program storage server (corresponding to the storage unit mentioned above).

[0065] The program distribution subsystem (corresponding to the data distribution module mentioned above) packages 8K or 4K program files and distributes them to various viewing points via the CDN network according to the requirements of the target terminal devices. End users can only decrypt and watch the live theatrical performance after authorization and authentication.

[0066] In addition to live streaming, users can also log in to the program-on-demand system's portal website or mobile app to find and stream previously recorded theatrical performances or other video resources. The program-on-demand module can automatically transcode the bitrate and resolution according to the user's device, providing a high-quality viewing experience.

[0067] To meet the playback needs of different terminal devices, the program aggregation system, while performing DRM encryption, also generates transcoded versions of the video content with multiple bitrates and resolutions, such as 4K / 60P, 2K / 60P, and 1080P, and stores them on the program storage server. During distribution and on-demand playback, the system automatically selects the appropriate bitrate for transmission to ensure the best viewing experience.

[0068] The copyright management system is a key technology throughout the entire system. Based on the ChinaDRM standard, it implements end-to-end encryption protection for program content. It also supports flexible authorization management, allowing for the granting of appropriate playback licenses to different users or devices. Furthermore, copyright monitoring continuously tracks the usage of programs across various platforms, enabling timely protective measures to be taken upon detection of infringement.

[0069] Below is another ultra-high-definition digital performing arts second-stage program aggregation and distribution system: Ulive "Super Live," the world's first ultra-high-definition digital theater solution. It provides a complete chain of hardware and software products and operational services, from ultra-high-definition front-end shooting and program production at the "first stage," broadcast control, transmission and distribution, to the presentation at the ultra-high-definition digital theater "second stage" terminal. It offers second-stage audiences an immersive viewing experience that is both similar to and surpasses the first-stage experience.

[0070] To achieve the above operational services, an ultra-high-definition digital performing arts second-stage program aggregation and distribution system has been built as a service platform for the routine operation of Ulive Super Live. For example... Figure 2 The diagram shows another ultra-high-definition digital performing arts second-stage program aggregation and distribution system. This system service platform consists of five main systems: an encoding and streaming system (corresponding to the acquisition module mentioned above), a stream aggregation and broadcasting system (corresponding to the data processing module mentioned above), a user and digital rights management system (corresponding to the rights management system mentioned above), a transmission and distribution system (corresponding to the data distribution module mentioned above), and a decryption and decoding system (corresponding to the target terminal equipment mentioned above). Each component is described below: 1. Encoding and streaming system The encoding and streaming system consists of two hardware encoders or encoding servers / workstations, one as the main unit and one as a backup. The encoders support 4K or 8K encoding as needed, with the 8K encoder also capable of 4K encoding.

[0071]

[0072] 2. Stream aggregation and broadcasting system like Figure 3The diagram illustrates a stream aggregation and broadcasting system, which includes functional modules such as stream aggregation, real-time transcoding, playlist control, broadcast server, and backend management. It receives streams pushed by the front-end encoding and streaming system and performs real-time transcoding as needed. The broadcast server mixes the transcoded streams with local stream files according to broadcast playlist rules, rearranging them to form one or more virtual live streams. The audio and video streams are then pushed to third-party live streaming platforms, or the encrypted streams are pushed to the transmission and distribution system through a central source station.

[0073] The stream aggregation and broadcasting system must meet the following indicators or functions: (1) Aggregation of 8K format with a bit rate of 80-120Mbps and 4K format with a bit rate of 20-35Mbps.

[0074] (2) Real-time streaming of 8K format with a bitrate of 80-120Mbps, 4K format with a bitrate of 20-35Mbps, and HD format with a bitrate of 5-15Mbps.

[0075] (3) Main and backup stream convergence and automatic switching: when the main stream is interrupted, it automatically switches to the backup stream.

[0076] (4) The main and backup dual-channel streams are converged and broadcast simultaneously.

[0077] (5) Multiple formats, multiple bitrates, multiple target addresses, and multiple simultaneous broadcasts.

[0078] (6) Real-time transcoding supports real-time down-conversion and bitrate conversion from 8K to 4K and from 4K to HD.

[0079] 3. User and Digital Rights Management System like Figure 4 The diagram illustrates a user and digital rights management system (DRM) that includes functional modules such as user management and authentication, DRM management, content encryption, and key distribution. For broadcast content requiring DRM protection, the DRM module generates encryption keys, which are then used by the encryption module to encrypt the streams. The user management and authentication modules authenticate users based on user information or terminal information. Based on the authentication results, the DRM module sends keys to legitimate decryption and decoding terminals.

[0080] User and digital rights management systems must meet the following indicators or functions: (1) User and terminal authentication and key authorization are performed based on various information such as user account, terminal IP (Internet Protocol) address / MAC (Media Access Control Address) address, terminal HDMI (High Definition Multimedia Interface) port to obtain display device EDID (Extended display identification data) information.

[0081] (2) Real-time encryption of bitrate streams in 8K format (80-120Mbps), 4K format (20-35Mbps), and HD format (5-15Mbps).

[0082] (3) Supports user terminal application upgrades and content push.

[0083] (4) It has the function of playback duration and number of times statistics, and retains the real-time data exchange or data file import interface at the software level, so as to exchange data and conduct comprehensive billing with third-party digital asset trading systems or ticketing systems in the future.

[0084] 4. Transmission and distribution system like Figure 5 The diagram illustrates a transmission and distribution system, which consists of a stream distribution gateway, a key distribution gateway, and edge node gateways. The edge node gateways transmit one or more injected streams through the network to the stream distribution gateway, which then distributes them to the edge node gateways at each receiving end. The decryption and decoding systems retrieve the streams from the edge node gateways for decryption and decoding output. The key distribution gateway is responsible for distributing the keys sent by users and the digital rights management system to the various legitimate decryption and decoding systems.

[0085] The transmission and distribution system must meet the following indicators or functions: (1) Deployed based on the public Internet and public cloud PasS platform.

[0086] (2) Maximum 120Mbps bit rate transmission and distribution capability.

[0087] (3) 7x24 hours uninterrupted and uninterrupted transmission reliability.

[0088] (4) Supports encrypted stream transmission and distribution.

[0089] (5) Edge node gateway supports multi-link aggregation transmission to the cloud.

[0090] The transmission and distribution system can be built independently based on a public cloud PaaS (Platform as a Service) platform, or it can be directly purchased or rented from third-party vendors for highly reliable audio and video transmission SaaS (Software-as-a-Service) services.

[0091] 5. Decryption and decoding system The decryption and decoding system consists of one or two hardware decoders (one main and one backup), a decoding server, or a workstation. The decoder supports 4K or 8K format decryption and decoding as needed; 8K decryption and decoding systems also have 4K decoding capabilities.

[0092]

[0093] For ease of understanding, the following is provided: Figure 6 The diagram shows another ultra-high-definition digital performing arts second-stage program aggregation and distribution system. This system aims to meet the needs of "second-stage" demonstration and pilot projects. It simplifies equipment and enables basic video signal processing functions. Specifically, it may include an 8K encoder, encryption machine, DRM server, edge node gateway, stream distribution gateway, key distribution gateway, and a dedicated set-top box app. The system may include the following functions: 1. No need for functions such as stream aggregation, file broadcasting, and broadcast schedules. There is no need to build a complete stream aggregation and broadcasting system. It only needs to support automatic switching of the main and backup encoders.

[0094] 2. With a small number of end users and low requirements for user management complexity, the user and digital rights management system only deploys whitelist-based digital rights management and content encryption.

[0095] 3. For the transmission and distribution system, consider purchasing a single virtual server from the public cloud to deploy a stream distribution gateway and a key distribution gateway. Alternatively, rent a highly reliable video transmission service from a third-party vendor.

[0096] 4. The decryption and decoding system uses a low-cost 8K / 4K set-top box and is implemented by developing and deploying a dedicated decryption and decoding APP based on the SDK (Software Development Kit) of the DRM encryption and decryption product supplier.

[0097] The following provides information such as Figure 7The diagram shows another ultra-high-definition digital performing arts second-stage program aggregation and distribution system. This system aims to build a complete and reliable full-featured broadcast platform. It may include: encoders, stream aggregation, real-time transcoding, programmable playback control, broadcast servers, encryption machines, user management and authentication, digital rights management, key distribution gateways, stream distribution gateways, edge node gateways, and a dedicated set-top box app. The system may include the following functions: 1. Simultaneous broadcast of three stage performances.

[0098] 2. Add two sets of 8K encoders (main and backup) and two sets of 4K encoders (main and backup).

[0099] 3. Deploy complete stream aggregation, real-time transcoding, file transcoding, playlist broadcasting, and central source station.

[0100] 4. Deploy complete user management and authentication, terminal management, digital rights management and encryption, realize a user authentication mechanism based on user account, decoding terminal hardware information and display device HDMI interface EDID information, and realize the statistical function of broadcast times and duration for users and terminals.

[0101] 5. Dedicated broadband access from at least two operators with speeds of no less than 300Mbps.

[0102] 6. Construct a broadcast control room with complete monitoring, surveillance, and network control functions.

[0103] 7. Build a transmission and distribution system on a public cloud that can support simultaneous live streaming from no fewer than 100 theaters.

[0104] 8. For larger-scale live broadcasts, identify a long-term professional audio-visual transmission service platform and corresponding provider.

[0105] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A high-definition digital performing arts second-stage program aggregation and distribution system, characterized in that, The system includes: The acquisition module is used to acquire the original video signal corresponding to the first event site through a designated camera, encode the original video signal to obtain an encoded video signal, and send the encoded video signal to the data processing module through an Internet channel; wherein, the designated camera includes at least one of the following: an 8K ultra-high-definition camera, a 4K ultra-high-definition camera, and a high frame rate camera; The data processing module is used to encrypt the encoded video signal to obtain an encrypted video signal; The data distribution module is used to send the encrypted video signal to the target terminal device via the Internet channel; the target terminal device is the terminal corresponding to the theater screen. The program-on-demand module is used to acquire multiple encrypted video signals stored in a storage unit; and to receive a first processing request from the target terminal device via a web page and / or an APP client, so as to process the acquired multiple encrypted video signals according to the first processing request; wherein, the first processing request includes at least one of the following: a search request, a browsing request, and an on-demand request; if the first processing request is the on-demand request, the module acquires the verification information corresponding to the target terminal device, compares the verification information with a pre-stored authorization list, and obtains a comparison result; if the comparison result indicates that the target terminal device has on-demand permission, the module acquires the target video signal corresponding to the on-demand request, and sends the target video signal to the target terminal device; the target terminal device is used to decrypt and decode the target video signal to obtain the video signal corresponding to the on-demand request; The target terminal device is used to decrypt and decode the encrypted video signal to obtain the original video signal; wherein, the target terminal device has the right to use the original video signal; The acquisition module includes: The first camera is used to acquire high-resolution video signals from the first event site; wherein, the first camera includes: an 8K ultra-high-definition camera and a 4K ultra-high-definition camera; High frame rate cameras are used to capture high frame rate video signals from fast-moving scenes. An ultra-high-definition live switcher is used to switch and synthesize the high-resolution video signal and the high-frame-rate video signal to obtain the original video signal. An encoding device is used to encode the original video signal according to a preset first encoding format to obtain an encoded video signal. A transmission device for transmitting the encoded video signal to a data processing module via an internet channel; The data processing module is further configured to: receive multiple encoded video signals corresponding to multiple event venues; perform transcoding and encryption processing on the multiple encoded video signals to obtain multiple encrypted video signals; the data processing module further includes: The signal receiving unit is used to receive multiple encoded video signals corresponding to multiple event sites; The transcoding module is used to transcode the multiple encoded video signals according to a preset second encoding format to obtain multiple transcoded video signals. An encryption module is used to encrypt the multiple transcoded video signals respectively to obtain multiple encrypted video signals; Storage unit, used to store the multiple encrypted video signals; The encryption module is used to encrypt the multiple transcoded video signals using digital rights management standards to obtain multiple encrypted video signals. The system also obtains the account information, IP address, and MAC address of the target terminal device, as well as the EDID information of the connected display device through the HDMI port of the target terminal device, and authenticates the target terminal device based on the account information, IP address, MAC address, and EDID information. After successful authentication, a decryption key is sent to the target terminal device. The target terminal device is also used to obtain the EDID information of the connected display device through the HDMI port, and send the EDID information as local authentication and identification information to the data processing module. The target terminal device includes a main decoder and a backup decoder. The main decoder and the backup decoder are used for synchronous decoding and time base alignment of the output screen through intra-frame timestamps.

2. The system according to claim 1, characterized in that, The data distribution module includes: The program distribution module is used to obtain the transmission parameters corresponding to the target terminal device and transmit the encrypted video signal to the content distribution network module according to the transmission parameters. The content delivery network module is used to send the encrypted video signal to the edge server through the Internet channel, so that the encrypted video signal can be sent to the target terminal device through the edge server.

3. The system according to claim 1, characterized in that, The highest resolution corresponding to the first camera is 7680x4320, and the highest frame rate is 120 frames per second.

4. The system according to claim 1, characterized in that, The highest frame rate corresponding to the high frame rate camera is 120 frames per second.

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