CN111294628B - Multi-channel immersive video and audio control system - Google Patents
Multi-channel immersive video and audio control system Download PDFInfo
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- CN111294628B CN111294628B CN202010108505.5A CN202010108505A CN111294628B CN 111294628 B CN111294628 B CN 111294628B CN 202010108505 A CN202010108505 A CN 202010108505A CN 111294628 B CN111294628 B CN 111294628B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/41—Structure of client; Structure of client peripherals
- H04N21/4104—Peripherals receiving signals from specially adapted client devices
- H04N21/4122—Peripherals receiving signals from specially adapted client devices additional display device, e.g. video projector
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/231—Content storage operation, e.g. caching movies for short term storage, replicating data over plural servers, prioritizing data for deletion
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/4302—Content synchronisation processes, e.g. decoder synchronisation
- H04N21/4307—Synchronising the rendering of multiple content streams or additional data on devices, e.g. synchronisation of audio on a mobile phone with the video output on the TV screen
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
- H04N21/43615—Interfacing a Home Network, e.g. for connecting the client to a plurality of peripherals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs
- H04N21/4402—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
- H04N9/3141—Constructional details thereof
- H04N9/3147—Multi-projection systems
Abstract
The invention provides a multi-channel immersive video control system which comprises a user side, a cloud platform, a multi-channel immersive projection device and a multi-channel stereo sound, wherein the user side is connected with the cloud platform, the cloud platform is connected with the multi-channel immersive projection device, the multi-channel stereo sound is connected with the multi-channel immersive projection device, and the multi-channel immersive projection device is used for synchronously outputting multi-channel ultra-high-definition video pictures and splicing images together to present a multi-surface immersive imaging effect. The invention has the beneficial effects that: the invention supports a plurality of projection components to synchronously output ultra-high definition image quality by combining customized video film sources with network transmission and distributed decoding, thereby presenting a multi-surface surrounding immersive video, audio and light space.
Description
Technical Field
The invention relates to the technical field of video control, in particular to a multi-channel immersive video control system.
Background
At present, besides dish features and dining services, dining experience is also one of very important contents of restaurants, particularly high-end restaurants, and the improvement of dining experience plays an important role in improving restaurant competitiveness and features. At present, dining experience of a restaurant is mainly achieved by improving service quality of people, playing background music, playing related videos of dining culture and the like. The immersion is not strong, more catering background contents cannot be presented, an interesting interaction mode is lacked, and the difference of the grades of the restaurants is difficult to pull open through the interaction experience mode.
The Internet of things cloud platform virtualizes a resource pool formed by large-scale servers, and users can acquire computing resources, storage space and information services at any time according to needs. The cloud computing platform can provide uniform client and equipment end access and massive data storage resources for the Internet of things application system, the Internet of things system based on a cloud + end architecture is established, and networking and intellectualization of the video projection control system are achieved.
In the current technical research, more than 3 projectors can not be controlled by 1 computer to simultaneously output high-resolution pictures.
The reference design is as follows, and one control host can carry 3 projectors:
1. the software is realized by software, the software runs on a console host and is applied to an enterprise exhibition hall, patent number CN201610568328.2, and a multi-channel software projection system.
2. Software and wireless module constitute the system, are applied to enterprise's exhibition room, patent number CN201711450647.4, a multichannel intelligence imaging system for projecting apparatus.
In summary, the disadvantages of the prior art are: the 1 computer can not control a plurality of projectors to synchronously output ultra-high definition pictures and can not be flexibly configured.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a multi-channel immersive video control system.
The invention provides a multi-channel immersive video control system which comprises a user side, a cloud platform, a multi-channel immersive projection device and a multi-channel stereo sound, wherein the user side is connected with the cloud platform, the cloud platform is connected with the multi-channel immersive projection device, and the multi-channel stereo sound is connected with the multi-channel immersive projection device;
the user side is an interactive terminal and a management terminal used by a user, and provides an entrance for interaction between the user and the system, so that the user can remotely operate the multi-channel immersive projection device, configure playing contents and control a playing mode, and can check the running condition of the system;
the cloud platform is used for realizing the management and control of the multi-channel immersive projection device;
the multi-channel immersive projection device is used for synchronously outputting multi-channel ultrahigh-definition video pictures and splicing images together so as to present a multi-surface immersive projection imaging effect;
the multi-channel stereo sound is used for output of surround sound.
As a further improvement of the invention, the multi-channel immersive projection device is connected with the cloud platform through a wide area network, performs file synchronization, parameter acquisition and state feedback, provides multi-channel decoding output for ultra-high definition video, and is connected with the projection component group through a high definition video interface, so that an immersive audio and video effect is realized.
As a further improvement of the invention, the multi-channel immersive video control system further comprises an integrated special lighting lamp and an interactive camera, and the multi-channel immersive projection device is respectively connected with the integrated special lighting lamp and the interactive camera.
As a further improvement of the present invention, the multi-channel immersive projection device includes an embedded video server and a plurality of projection components, the embedded video server is respectively connected to the plurality of projection components, and the embedded video server implements interaction with the cloud platform, and functions of file synchronization, play synchronization, audio/video processing, and audio/video output.
As a further improvement of the present invention, the embedded video server includes a main control unit and a plurality of video decoders, the main control unit is connected to the cloud platform, the main control unit is respectively connected to the plurality of video decoders, and the main control unit controls the video decoders through a bus; the main control unit transmits files through a bus and automatically realizes file synchronization with the video decoder through a network file synchronization protocol.
As a further improvement of the present invention, the master control unit implements synchronous control of a plurality of video decoders, including play synchronization, data synchronization, and rate control, by means of a synchronization command or a video key frame synchronization.
As a further improvement of the invention, when the synchronization among a plurality of multi-channel immersive projection devices is involved, Beidou, GPS or BTS is adopted to carry out time synchronization, so that the synchronization time precision is controlled to be in microsecond level.
As a further improvement of the invention, each output channel of the embedded video server can be independently configured and independently decoded and output, and the size conversion of each channel is realized through an interpolation algorithm; the embedded video server realizes that one video is divided into 1 to a plurality of pictures through a video division technology, and the divided pictures are output to different projection components in a zooming way, and a plurality of video files can be configured to different output channels, so that the videos are combined according to actual needs.
As a further improvement of the present invention, the embedded video server employs a distributed decoding manner, the main control unit does not need to perform high-definition video decoding operation, the decoding operation is completed by the video decoder, and the video decoder only needs to decode the channel output window video.
As a further improvement of the present invention, the video decoder adopts a hardware decoding mode, supports decoding modes of H264, H265 and MPEG4, supports 4K video decoding, supports hardware decoding, playing and outputting of ultra high definition video, supports image rendering, color correction and seamless video switching of video, and adopts luminance fusion and color fusion technologies to fuse multiple channels.
The invention has the beneficial effects that: by means of the customized video film source, network transmission and distributed decoding are combined, a plurality of projection assemblies are supported to synchronously output ultra-high definition image quality, and a multi-surface surrounding immersive video, audio and light space is presented.
Drawings
FIG. 1 is a system schematic of the present invention;
fig. 2 is a schematic diagram of the embedded video server of the present invention.
Detailed Description
As shown in fig. 1, the invention discloses a multi-channel immersive audiovisual video control system, which can flexibly configure video playing of multiple channels and support synchronous output of ultra-high definition video.
The multi-channel immersive video control system comprises a user side, a cloud platform, a multi-channel immersive projection device and a multi-channel stereo sound, wherein the user side is connected with the cloud platform, the cloud platform is connected with the multi-channel immersive projection device, and the multi-channel stereo sound is connected with the multi-channel immersive projection device.
The user side is an interactive terminal and a management terminal used by a user, the user side provides an entrance for interaction between the user and the system, so that the user can remotely operate the multi-channel immersive projection device at any time and any place, configure playing contents and control playing modes, and can check the running state of the system, and the user side can adopt a monitoring terminal (a computer) or a smart phone shown in fig. 1.
The cloud platform is a cloud server, and management and control of the multi-channel immersive projection device are achieved.
The multi-channel immersive projection device is used for synchronously outputting multi-channel ultrahigh-definition video pictures and enables images to be spliced together so as to present a multi-surface immersive projection imaging effect.
Specifically, the multi-channel immersive projection device is connected with a cloud platform through a wide area network, performs file synchronization, parameter acquisition and state feedback, provides multi-channel decoding output of ultra-high definition video, and is connected with a projection component group through a high definition video interface, so that an immersive audio and video effect is achieved.
The multi-channel stereo sound is surround sound, which can adopt dolby sound shown in fig. 1, and presents immersive sound and picture extreme experience for users through high-quality surround sound output.
The multi-channel immersive video control system further comprises an integrated special lighting lamp and an interactive camera, and the multi-channel immersive projection device is respectively connected with the integrated special lighting lamp and the interactive camera.
In conclusion, the multi-channel immersive video and audio control system adopts a cloud + end structure to realize remote management and control, and comprises the functions of equipment management, user management, program updating, parameter setting, playing control and the like. The cloud is a cloud platform, and the cloud platform realizes unified management and control on users and equipment. The "end" includes the user end and the device end, i.e., the multi-channel immersive projection device.
The multichannel immersive projection device comprises an embedded video server and a plurality of projection components, wherein the embedded video server is respectively connected with the plurality of projection components, and the multichannel immersive projection device adopts a 6-channel (not limited to 6-channel) stereoscopic projection output structure and provides an application solution with high integration level for immersive projection requirements. The embedded video server is the core of the multi-channel immersive projection device, and realizes interaction with the cloud platform, and functions of file synchronization, playing synchronization, audio and video processing, audio and video output and the like.
The multi-channel immersive projection device further comprises a dolby sound interface, the embedded video server is connected with the dolby sound interface, the multi-channel stereo sound is a dolby sound, and the dolby sound is connected with the dolby sound interface.
The interactive camera is connected with the embedded video server.
As shown in fig. 2, the embedded video server includes a main control unit and a plurality of video decoders, the main control unit interacts with the cloud platform through a Wide Area Network (WAN), and controls the video decoders through a bus. The multichannel immersive projection device has 6 (not limited to 6) video decoding outputs, can flexibly configure a projection assembly according to specific application requirements, and has good expansibility and compatibility. The main control unit transmits files through the bus, automatically realizes file synchronization with the video decoder through a network file synchronization protocol, and effectively improves the convenience of system configuration.
In order to ensure the synchronous output of multiple channels, the main control unit realizes the synchronous control of multiple video decoders in a synchronous instruction or video key frame synchronous mode, including playing synchronization, data synchronization, rate control and the like. When synchronization among a plurality of multi-channel immersive projection devices is involved, time synchronization is carried out by adopting a Beidou, a GPS (Global Positioning System) or a BTS (Base Transceiver Station), so that the synchronization time precision is controlled to be microsecond level.
Each output channel of the embedded video server can be independently configured and independently decoded and output, and the size of each channel is changed by an interpolation algorithm so as to adapt to different projection environments; through the video segmentation technology, 1-6 picture segmentation can be performed on one video, zooming output can be performed on the video to different projection assemblies, multiple video files can be configured to different output channels, the video can be combined according to actual needs, and flexibility of multi-channel video output is enhanced.
The embedded video server adopts a distributed decoding mode, the main control unit does not need to execute high-definition video decoding operation, the decoding operation is completed by a video decoder, and the video decoder only needs to decode the channel output window video, so that the stability of the system and the video decoding output performance are effectively improved.
The video decoder adopts a hardware decoding mode, supports multiple decoding modes such as H264, H265, MPEG4 and the like, supports 4K video decoding, not only supports hardware decoding, playing and outputting of ultra-high definition video, but also supports image rendering, color correction, seamless video switching and the like of the video, adopts brightness fusion and color fusion technologies to fuse multiple channels, and effectively improves the effect presentation of video projection output.
As shown in fig. 2, the embedded video server also includes an audio output and a video input respectively connected to the main control unit.
In conclusion, the invention supports a plurality of projection assemblies to synchronously output ultra-high definition image quality by combining customized video film sources with network transmission and distributed decoding, thereby presenting a multi-surface surrounding immersive video, audio and light space.
The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.
Claims (8)
1. A multi-channel immersive video control system is characterized in that: the system comprises a user side, a cloud platform, a multi-channel immersive projection device and a multi-channel stereo sound box, wherein the user side is connected with the cloud platform, the cloud platform is connected with the multi-channel immersive projection device, and the multi-channel stereo sound box is connected with the multi-channel immersive projection device;
the user side is an interactive terminal and a management terminal used by a user, and provides an entrance for interaction between the user and the system, so that the user can remotely operate the multi-channel immersive projection device, configure playing contents and control a playing mode, and can check the running condition of the system;
the cloud platform is used for realizing the management and control of the multi-channel immersive projection device;
the multi-channel immersive projection device is used for synchronously outputting multi-channel ultrahigh-definition video pictures and splicing images together so as to present a multi-surface immersive projection imaging effect;
the multi-channel stereo sound is used for outputting surround sound;
the multi-channel immersive projection device comprises an embedded video server and a plurality of projection components, wherein the embedded video server is respectively connected with the plurality of projection components, and the embedded video server realizes interaction with the cloud platform and functions of file synchronization, playing synchronization, audio and video processing and audio and video output;
the embedded video server comprises a main control unit and a plurality of video decoders, the main control unit is connected with the cloud platform, the main control unit is respectively connected with the plurality of video decoders, and the main control unit controls the video decoders through a bus; the main control unit transmits files through a bus and automatically realizes file synchronization with the video decoder through a network file synchronization protocol.
2. The multi-channel immersive audiovisual video control system of claim 1, wherein: the multi-channel immersive projection device is connected with the cloud platform through a wide area network, performs file synchronization, parameter acquisition and state feedback, provides multi-channel decoding output of ultra-high definition video, and is connected with the projection assembly group through a high definition video interface, so that an immersive audio and video effect is achieved.
3. The multi-channel immersive audiovisual video control system of claim 1, wherein: the multi-channel immersive video control system further comprises an integrated special lighting lamp and an interactive camera, and the multi-channel immersive projection device is respectively connected with the integrated special lighting lamp and the interactive camera.
4. The multi-channel immersive audiovisual video control system of claim 1, wherein: the main control unit realizes the synchronous control of a plurality of video decoders in a synchronous instruction or video key frame synchronous mode, including playing synchronization, data synchronization and rate control.
5. The multi-channel immersive audiovisual video control system of claim 4, wherein: when a plurality of multi-channel immersive projection devices are synchronized, Beidou, GPS or BTS are adopted to carry out time synchronization, so that the precision of the synchronization time is controlled in microsecond level.
6. The multi-channel immersive audiovisual video control system of claim 1, wherein: each output channel of the embedded video server can be independently configured and independently decoded and output, and the size conversion of each channel is realized through an interpolation algorithm; the embedded video server realizes that one video is divided into 1 to a plurality of pictures through a video division technology, and the divided pictures are output to different projection components in a zooming way, and a plurality of video files can be configured to different output channels, so that the videos are combined according to actual needs.
7. The multi-channel immersive audiovisual video control system of claim 1, wherein: the embedded video server adopts a distributed decoding mode, the main control unit does not need to execute high-definition video decoding operation, the decoding operation is completed by the video decoder, and the video decoder only needs to decode the channel output window video.
8. The multi-channel immersive audiovisual video control system of claim 1, wherein: the video decoder adopts a hardware decoding mode, supports decoding modes of H264, H265 and MPEG4, supports 4K video decoding, supports hardware decoding, playing and outputting of ultra-high definition video, supports image rendering, color correction and seamless video switching of the video, and adopts brightness fusion and color fusion technologies to fuse multiple channels.
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| CN103905741A (en) * | 2014-03-19 | 2014-07-02 | 合肥安达电子有限责任公司 | Ultra-high-definition panoramic video real-time generation and multi-channel synchronous play system |
| CN204707207U (en) * | 2015-06-17 | 2015-10-14 | 北京德普视讯科技有限公司 | Based on the tiled display control system of cloud computing technology |
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| US9508312B2 (en) * | 2014-01-24 | 2016-11-29 | Lattice Semiconductor Corporation | Mechanism for facilitating dynamic counter synchronization and packetization in high-definition multimedia interface and mobile high-definition link |
| CN105208434A (en) * | 2014-06-11 | 2015-12-30 | 阿里巴巴集团控股有限公司 | Media projection method, media projection equipment, control terminal, and cloud server |
| CN104202589A (en) * | 2014-09-23 | 2014-12-10 | 长春理工大学 | Multichannel three-dimensional film video synchronous playing method |
| CN104270618A (en) * | 2014-10-22 | 2015-01-07 | 广州金匙信息科技有限公司 | Network video monitoring system capable of achieving automatic intrusion alarm |
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| CN103905741A (en) * | 2014-03-19 | 2014-07-02 | 合肥安达电子有限责任公司 | Ultra-high-definition panoramic video real-time generation and multi-channel synchronous play system |
| CN204707207U (en) * | 2015-06-17 | 2015-10-14 | 北京德普视讯科技有限公司 | Based on the tiled display control system of cloud computing technology |
| CN106060606A (en) * | 2016-05-26 | 2016-10-26 | 福建凯米网络科技有限公司 | Large-screen partition display method, play terminal and system of digital audio-visual place, and digital video-on-demand system |
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