CN112055228A - Line card equipment supporting live broadcast of 4K or 8K television and application system thereof - Google Patents
Line card equipment supporting live broadcast of 4K or 8K television and application system thereof Download PDFInfo
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- CN112055228A CN112055228A CN202011065024.7A CN202011065024A CN112055228A CN 112055228 A CN112055228 A CN 112055228A CN 202011065024 A CN202011065024 A CN 202011065024A CN 112055228 A CN112055228 A CN 112055228A
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- 230000005540 biological transmission Effects 0.000 claims abstract description 26
- 238000006243 chemical reaction Methods 0.000 claims abstract description 5
- 238000004806 packaging method and process Methods 0.000 claims description 4
- 230000003044 adaptive effect Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- 238000004891 communication Methods 0.000 abstract description 3
- 230000006872 improvement Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 3
- 230000003213 activating effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
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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
- H04N21/21—Server components or server architectures
- H04N21/218—Source of audio or video content, e.g. local disk arrays
- H04N21/2187—Live feed
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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
- H04N21/426—Internal components of the client ; Characteristics thereof
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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
- H04N21/443—OS processes, e.g. booting an STB, implementing a Java virtual machine in an STB or power management in an STB
- H04N21/4431—OS processes, e.g. booting an STB, implementing a Java virtual machine in an STB or power management in an STB characterized by the use of Application Program Interface [API] libraries
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/61—Network physical structure; Signal processing
- H04N21/6106—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network
- H04N21/6112—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network involving terrestrial transmission, e.g. DVB-T
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/61—Network physical structure; Signal processing
- H04N21/6106—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network
- H04N21/6143—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network involving transmission via a satellite
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Astronomy & Astrophysics (AREA)
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- Databases & Information Systems (AREA)
- Library & Information Science (AREA)
- Software Systems (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The invention discloses a line card device supporting live broadcast of 4K or 8K televisions and an application system thereof, wherein the line card device supporting live broadcast of 4K or 8K televisions comprises a satellite receiving antenna, a cable feeder line, a ground digital television antenna, a multi-path Tuner module and a processor with a routing function which are sequentially connected, wherein the processor is provided with a descrambling module with a descrambling chip, a slice transcoding module and a format conversion module, and is connected with a plurality of network ports; the invention also discloses an application system of the line card equipment supporting the live broadcast of the 4K or 8K television, which comprises the line card equipment, the router and the application program of the terminal equipment, wherein the line card equipment, the router and the application program interface of the terminal equipment are sequentially connected. The problem that when the traditional Internet audio-visual equipment is used, live television signals need to occupy a network channel for transmission, so that transmission is not smooth is solved. The invention is applied to the technical field of communication.
Description
Technical Field
The invention relates to the technical field of communication, in particular to a line card device supporting live broadcast of 4K or 8K televisions and an application system thereof.
Background
"line card", transliterate: a Line Card is a device interface between an access Line and an access device for a switch, router, or other network device. Digital line cards of various rates may be used to connect cables or fiber optic lines. The digital line card mainly provides functions of data packet forwarding, ping response, data packet fragmentation and the like for a data network.
Actually, the device is also a device for converting high-definition and ultra-high-definition satellite, cable and ground digital television signals such as 1080P, 4K, 8K and the like into LAN and WiFi signals, can support more fixed receiving terminals and mobile receiving terminals to simultaneously surf the internet, is widely applied to scenes such as families, offices, hotels and the like, and can save the investment of terminal devices after network access.
Meanwhile, after the 5G era of communication, enhanced bandwidth (EMMB) is an important application scenario of 5G, according to the national standard, a single-channel 8K television live broadcast signal reaches 150MBps, and a 4K signal also reaches 36MBps, and for internet network transmission, television signals with large bandwidths of 4K and 8K are transmitted to mobile terminal devices such as mobile phones and PADs, and fixed terminal receiving devices such as set-top boxes and televisions, but such a manner can greatly consume bandwidth resources of a trunk line network and a wireless distribution network of an operator, thereby causing the problem of unsmooth signal transmission or even transmission failure.
Disclosure of Invention
Technical problem to be solved
A line card device supporting live television of 4K or 8K and an application system thereof solve the problem that live television signals need to occupy a network channel to be transmitted when the traditional Internet audio-visual equipment is in use, so that the transmission is not smooth.
(II) technical scheme
In order to solve the technical problem, the invention provides a line card device supporting live broadcast of 4K or 8K televisions, which comprises a satellite receiving antenna, a cable feeder line, a ground digital television antenna, a multi-path Tuner module and a processor with a routing function, wherein the satellite receiving antenna, the cable feeder line, the ground digital television antenna, the multi-path Tuner module and the processor are sequentially connected;
the method comprises the steps that a satellite receiving antenna, a cable feeder line and a ground digital television antenna are used for sequentially receiving digital television signals to obtain scrambled transmission stream data, the scrambled transmission stream data are transmitted to a processor through a Tuner module, the scrambled transmission stream data are processed by a descrambling module to form transparent transmission stream data, a slice transcoding module of the processor can be used for transcoding or not transcoding the transparent transmission stream data selectively, then transmission stream packaging format data are formed, a format conversion module of the processor converts the transmission stream packaging format data into dynamic code rate self-adaptive format stream media data and simultaneously generates an m3u8 index file, the processor distributes the dynamic code rate self-adaptive format stream media data to a network through each internet access, and finally, the dynamic code rate self-adaptive format stream media data are interacted with an application program of a terminal device through a self-defined application program interface.
In a further improvement, the Tuner module is a demodulation module supporting multi-path simultaneous reception processing and formed according to any one of the standards of ABS-S, DVB-S, DVB-S2 and DVB-C, DVB-T, DTMB.
In a further improvement, the descrambling module is a CAS and DCAS system based on the DVB standard.
In a further improvement, the network ports include a plurality of WAN network ports and a plurality of LAN network ports, and the processor is connected to the router through one LAN network port to adapt the dynamic bit rate to the format of the streaming media data.
In a further improvement, the terminal equipment comprises a mobile phone, a PAD, a computer, a set-top box and an intelligent television.
The invention also provides an application system of the line card equipment supporting the live broadcast of the 4K or 8K television, and the adopted technical scheme is as follows:
an application system of line card equipment supporting live broadcast of 4K or 8K televisions comprises the line card equipment supporting live broadcast of 4K or 8K televisions, a router and an application program of terminal equipment, wherein application program interfaces of the line card equipment, the router and the terminal equipment are sequentially connected.
(III) advantageous effects
The line card equipment supporting the live broadcast of the 4K or 8K television receives digital television signals, outputs scrambling TS, descrambles, transcodes and slices, outputs transparent HLS, distributes the transparent HLS through a network port, interacts with an application program of terminal equipment through API (application program interface), realizes the functions of activating and opening an equipment terminal, searching programs, switching channels, controlling transcoding formats and code rates and the like, meets the audiovisual requirements of ultrahigh-definition live broadcast television programs, and solves the problem of difficulty in transmitting high-code-rate live broadcast television signals in the Internet television.
Compared with the traditional internet audio-visual equipment, in the line card equipment, digital television signals and dynamic code rate self-adaptive format streaming media data do not occupy a network channel, bandwidth resources are not consumed, smooth operation of television program signals and a network is guaranteed, external terminal equipment can directly access a broadcast address of a live television through WIFI, a network cable and the like, therefore, the aim of watching the live television of 4K, 8K and the like through surfing the internet is achieved, and the problem that the transmission is not smooth due to the fact that the live television signals need to occupy the network channel to be transmitted when the traditional internet audio-visual equipment is used is solved.
The application system of the line card equipment supporting live broadcast of 4K or 8K televisions also has the advantages and is not described again.
Drawings
Fig. 1 is a schematic flow chart of a line card device supporting live broadcast of 4K or 8K tv and an application system thereof according to an embodiment of the present invention;
fig. 2 is an application schematic diagram of a line card device supporting live broadcast of 4K or 8K tv according to an embodiment of the present invention;
fig. 3 is a schematic diagram of the operation of a conventional internet audiovisual device.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
Referring to fig. 1 to 3, a line card device supporting live broadcast of 4K or 8K tv includes a satellite receiving antenna, a cable feeder, a terrestrial digital tv antenna, a multi-channel Tuner module, and a processor with a routing function, which are connected in sequence, where the processor is provided with a descrambling module with a descrambling chip, a slice transcoding module, and a format conversion module, and the processor is connected to multiple network ports;
the scrambled transmission stream data is obtained by receiving the digital television signal in turn through a satellite receiving antenna, a cable feeder and a ground digital television antenna, the scrambled transmission stream data is transmitted to a processor through a Tuner module, the scrambled transmission stream data forms transparent transmission stream data after being processed by a descrambling module, the slice transcoding module of the processor may optionally transcode or not transcode the transparent transport stream data, then forming transport stream package format data, the format conversion module of the processor converts the transport stream package format data into dynamic code rate self-adapting format streaming media data, and an m3u8 index file is generated at the same time, the m3u8 index file records an index plain text file, when a user opens the index file, the playing software does not play the index file, but finds the network address of the corresponding audio/video file according to the index of the index file to play the audio/video file online. The processor distributes the dynamic code rate self-adaptive format streaming media data to a network through each network port, and finally, the dynamic code rate self-adaptive format streaming media data are respectively interacted with an application program of the terminal equipment through a self-defined application program interface, so that the functions of activating and opening an equipment terminal, searching programs, switching channels, controlling transcoding formats, code rate and the like are realized, the audiovisual requirements of ultra-high definition live television programs are met, and the problem that high-code rate live television signals are difficult to transmit in internet televisions is solved.
As shown in fig. 3, fig. 3 is a schematic diagram of a conventional internet audio-visual device, and compared with the conventional internet audio-visual device, in the line card device of this embodiment, digital television signals and dynamic code rate adaptive format streaming media data do not occupy a network channel, and bandwidth resources are not consumed, so that smooth operation of television program signals and a network is ensured, and external terminal devices can directly access a broadcast address of a live television through WIFI, a network cable and the like, thereby achieving a purpose of watching live televisions such as 4K and 8K through internet access, and solving a problem that in use of the conventional internet audio-visual device, live television signals need to occupy the network channel for transmission, which results in unsmooth transmission.
In this embodiment, as a further improvement of the foregoing technical solution, the Tuner module is a demodulation module supporting multiple simultaneous reception processing and formed according to any one of standards of ABS-S, DVB-S, DVB-S2 and DVB-C, DVB-T, DTMB.
In this embodiment, as a further improvement of the above technical solution, the descrambling module is a CAS system and a DCAS system based on the DVB standard, that is, a conditional access system, and includes a decryption component, a descrambling component, a high security component, and the like.
Specifically, the slice transcoding module refers to an application program carried by the line card device, and converts audio and video coding formats adopted by satellite, cable and terrestrial digital televisions before, such as AVS, AVS2, MPEG2 and the like, into formats such as h.264 or h.265 and the like through built-in functions of a processor. Transport stream data TS for short; the dynamic code rate self-adaptive format streaming media data is called HLS for short. The application program is abbreviated as APP, and the application program interface of the terminal equipment is abbreviated as API.
In this embodiment, as a further improvement of the foregoing technical solution, the network port includes a plurality of WAN network ports and a plurality of LAN network ports, and the processor is connected to the router through one LAN network port, and is configured to adapt the dynamic bit rate to the format streaming media data.
In this embodiment, as a further improvement of the above technical solution, the terminal device includes a mobile phone, a PAD, a computer, a set-top box, and an intelligent television.
The embodiment also provides an application system of the line card device supporting live broadcast of 4K or 8K televisions, and the adopted technical scheme is as follows:
the utility model provides a support application system of line card equipment of live of 4K or 8K TV, includes the above-mentioned application program that supports line card equipment, router and terminal equipment of live of 4K or 8K TV, line card equipment, router and terminal equipment's application program interface links to each other in proper order, and APP is given as short to application program, API is given as short to terminal equipment's application program interface.
The application system of the line card device supporting live broadcast of 4K or 8K tv in this embodiment also has the above advantages, and details are not described herein.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (6)
1. A line card device supporting live broadcast of 4K or 8K televisions is characterized by comprising a satellite receiving antenna, a cable feeder line, a ground digital television antenna, a multi-path Tuner module and a processor with a routing function, wherein the satellite receiving antenna, the cable feeder line, the ground digital television antenna, the multi-path Tuner module and the processor are sequentially connected;
the method comprises the steps that a satellite receiving antenna, a cable feeder line and a ground digital television antenna are used for sequentially receiving digital television signals to obtain scrambled transmission stream data, the scrambled transmission stream data are transmitted to a processor through a Tuner module, the scrambled transmission stream data are processed by a descrambling module to form transparent transmission stream data, a slice transcoding module of the processor can be used for transcoding or not transcoding the transparent transmission stream data selectively, then transmission stream packaging format data are formed, a format conversion module of the processor converts the transmission stream packaging format data into dynamic code rate self-adaptive format stream media data and simultaneously generates an m3u8 index file, the processor distributes the dynamic code rate self-adaptive format stream media data to a network through each internet access, and finally, the dynamic code rate self-adaptive format stream media data are interacted with an application program of a terminal device through a self-defined application program interface.
2. The line card device supporting live 4K or 8K television according to claim 1, wherein the Tuner module is a demodulation module supporting multiple simultaneous reception processing, and is formed according to any one of ABS-S, DVB-S, DVB-S2 and DVB-C, DVB-T, DTMB standards.
3. The line card device supporting live 4K or 8K televisions according to claim 1, wherein the descrambling module is a CAS and DCAS system based on DVB standard.
4. The line card device for supporting live 4K or 8K tv broadcasting according to claim 1, wherein the ports include a plurality of WAN ports and a plurality of LAN ports, and the processor is connected to the router through one LAN port to stream the media data in the dynamic rate adaptive format.
5. The line card device supporting live 4K or 8K televisions according to claim 1, wherein the terminal devices comprise a mobile phone, a PAD, a computer, a set top box and a smart television.
6. An application system of a line card device supporting live 4K or 8K television, comprising the line card device supporting live 4K or 8K television, a router and an application program of a terminal device according to any one of claims 1 to 5, wherein the application program interfaces of the line card device, the router and the terminal device are connected in sequence.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011065024.7A CN112055228A (en) | 2020-09-30 | 2020-09-30 | Line card equipment supporting live broadcast of 4K or 8K television and application system thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011065024.7A CN112055228A (en) | 2020-09-30 | 2020-09-30 | Line card equipment supporting live broadcast of 4K or 8K television and application system thereof |
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| Publication Number | Publication Date |
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| CN112055228A true CN112055228A (en) | 2020-12-08 |
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| CN202011065024.7A Pending CN112055228A (en) | 2020-09-30 | 2020-09-30 | Line card equipment supporting live broadcast of 4K or 8K television and application system thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113747183A (en) * | 2021-07-30 | 2021-12-03 | 深圳市九洲电器有限公司 | Live video sharing method and system and readable storage medium |
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2020
- 2020-09-30 CN CN202011065024.7A patent/CN112055228A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113747183A (en) * | 2021-07-30 | 2021-12-03 | 深圳市九洲电器有限公司 | Live video sharing method and system and readable storage medium |
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Country or region after: China Address after: Building 7, 4th Floor, Shenzhen Software Industry Base, No. 12 Haiyun Road, Binhai Community, Yuehai Street, Nanshan District, Shenzhen City, Guangdong Province 518000 Applicant after: SHENZHEN HONG AN DATA TECHNOLOGY Co.,Ltd. Address before: No.22 guimiao Road, Nanshan District, Shenzhen City, Guangdong Province Applicant before: SHENZHEN HONG AN DATA TECHNOLOGY Co.,Ltd. Country or region before: China |