CN113055694A - Television live broadcast method, device and system, readable storage medium and smart television - Google Patents
Television live broadcast method, device and system, readable storage medium and smart television Download PDFInfo
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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
- H04N21/43—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
- H04N21/438—Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving encoded video stream packets from an IP network
- H04N21/4382—Demodulation or channel decoding, e.g. QPSK demodulation
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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
- H04N21/45—Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
- H04N21/458—Scheduling content for creating a personalised stream, e.g. by combining a locally stored advertisement with an incoming stream; Updating operations, e.g. for OS modules ; time-related management operations
- H04N21/4586—Content update operation triggered locally, e.g. by comparing the version of software modules in a DVB carousel to the version stored locally
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- H—ELECTRICITY
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- 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
- H04N21/47—End-user applications
- H04N21/482—End-user interface for program selection
- H04N21/4825—End-user interface for program selection using a list of items to be played back in a given order, e.g. playlists
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- H—ELECTRICITY
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- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
- H04N21/81—Monomedia components thereof
- H04N21/8126—Monomedia components thereof involving additional data, e.g. news, sports, stocks, weather forecasts
- H04N21/8133—Monomedia components thereof involving additional data, e.g. news, sports, stocks, weather forecasts specifically related to the content, e.g. biography of the actors in a movie, detailed information about an article seen in a video program
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Abstract
The invention provides a television live broadcast method, a television live broadcast device, a television live broadcast system, a readable storage medium and an intelligent television. The television live broadcast method comprises the following steps: the first server provides description information of each television live broadcast channel to the intelligent television which is in communication connection through the Internet; the intelligent television receives and displays the description information of each live television channel; acquiring a target television live broadcast channel selected by a user, and determining a DTMB demodulation parameter corresponding to the target television live broadcast channel; the second server transmits audio and video data of each television live broadcast channel to the intelligent television through the cable television network based on the DTMB protocol; and the intelligent television receives the audio and video data of each live television channel and demodulates the audio and video data according to the DTMB demodulation parameters so as to obtain the audio and video data of the target live television channel from the audio and video data and play the audio and video data. The invention makes full use of the existing network infrastructure and terminal equipment, avoids providing services through a third-party CDN, and saves the television live broadcast operation cost.
Description
Technical Field
The invention relates to the technical field of television live broadcast, in particular to a television live broadcast method, device and system, a readable storage medium and an intelligent television.
Background
Live television is a service form in which a live channel is transmitted from a source (or a server) to a receiving terminal television of a user through a specific transmission channel. Currently, there are mainly three types of live tv services according to different transmission channels:
the first form is terrestrial television broadcasting.
The television signal source is a transmission mode that a television station transmits television signals to the air through a television transmitting tower (such as eastern pearl) with a higher geographical position or a ready mountain building station, and the television signals completely receive and generate the power video signals on the ground by utilizing atmospheric electric waves. The user terminal receives signals through the antenna and plays the signals through a television connected with the antenna. The standard used in China is the national terrestrial digital television broadcasting standard DTMB. The state currently requires that all factory television sets must forcibly support the DTMB standard. The DTMB is adopted to transmit live television broadcast, the method has the widest coverage for users, and the users only need to use the television and do not need additional set top boxes and other equipment.
This was the most prominent form of television transmission in china before 1990, in which most people first viewed television. However, this method of transmission has many obvious disadvantages, such as the transmission of television signals over the air, limited spectrum resources, low carrying bandwidth, and a small number of channels of television programs to be transmitted. The signals are propagated in the air, so that the signals can be influenced by weather, vehicles and other radio services, and the image quality is poor; along with the construction of urban high-rise buildings, the shielding of signals is more and more serious, common people gradually move into the buildings for living, and the antenna is inconvenient to erect.
The second form is cable television network distribution/transmission.
Since 1990, cable networks have been installed in cities, and users watch programs via cable at home. Thus, the signal quality of the image is greatly guaranteed, and the transmission channel is increased. Especially, after 2000 years, the digitization of the cable television is started to be completely converted, and the digital television signals are transmitted by the user through the cable television network, so that more programs are transmitted, and the image quality is better. However, this requires a digital television set-top box at the user's home for signal reception, demodulation and playback, and the television is degenerated into a display. The Cable television network physically adopts a hybrid fiber coaxial network, namely an HFC network, and the used Digital television standard is a Digital Video Broadcasting-Cable (DVB-C) standard. The oriental cable, Jiangsu province network, Hunan province network and Beijing Songhua in China are local cable television network operators. At present, the propagation mode is still the most main mode for most users in China to watch live broadcasting.
The third way is the dissemination/transmission of IPTV.
A kind of live television service is provided to users through IP protocol, which is provided by telecom operators when broadband is installed to users. Still need a digital television set-top box to carry out the receipt and broadcast of signal at the user side, the TV set disintegration becomes a display. For reasons of cost and policy restrictions, such live broadcasts are not transmitted via the internet, but rather within a private telecommunication network built by the telecommunication operator. The China telecom IPTV and the China Unicom IPTV are the service forms.
With the popularization of broadband internet and the development of broadband fee reduction and speed increase work, a newer internet-based live television service, also called live internet television (Over-the-Top broadcast: OTT broadcast), is beginning to appear. Live signals (data) are transmitted over the underlying network operator, such as a cable television operator or a telecommunication operator, directly through the internet, and directly provide live services to users. Since the service does not depend on the basic network operator, the service can reach the user very conveniently, and the threshold of developing video service is greatly reduced, for example, the video service can be realized by developing a live APP. However, the users are served via the internet, and data transmission is generally performed via a content transmission network CDN. CDN services are typically provided by specialized CDN vendors such as web-hosting, ali CDNs, and service providers need to pay for the CDN.
How to fully utilize the existing network infrastructure and terminal equipment and avoid providing services through a third-party CDN is a technical problem to be solved urgently.
Disclosure of Invention
In view of the above shortcomings in the prior art, the present invention provides a live tv broadcast method, device, system, readable storage medium and smart tv set, which are used to solve the above problems in the prior art.
In order to achieve the above and other related objects, the present invention provides a method for live television, including: the first server provides description information of each television live broadcast channel to the intelligent television which is in communication connection through the Internet; the intelligent television receives and displays the description information of each live television channel; acquiring a target television live broadcast channel selected by a user, and determining a DTMB demodulation parameter corresponding to the target television live broadcast channel; the second server transmits audio and video data of each television live broadcast channel to the intelligent television through the cable television network based on the DTMB protocol; and the intelligent television receives the audio and video data of each live television channel and demodulates the audio and video data according to the DTMB demodulation parameters so as to obtain the audio and video data of the target live television channel from the audio and video data and play the audio and video data.
In an embodiment of the present invention, the description information of the live tv channel includes program information and service information of the live tv channel.
To achieve the above and other related objects, the present invention provides a live tv broadcast system, including: the first server is used for providing description information of each live television channel so that an intelligent television at a user side can obtain and display the description information of each live television channel through the Internet; the second server is used for transmitting audio and video data of each live television channel to the intelligent television set at the user side through the cable television network based on the DTMB protocol; the intelligent television is used for acquiring a target television live broadcast channel selected by a user, demodulating the audio and video data by using the DTMB demodulation parameter corresponding to the target television live broadcast channel, and acquiring and playing the audio and video data of the target television live broadcast channel from the audio and video data.
In an embodiment of the present invention, the description information of the live tv channel includes program information and service information of the live tv channel.
In order to achieve the above and other related objects, the present invention provides a live tv broadcasting method applied to an intelligent tv, including: acquiring description information of each television live channel from a first server in communication connection through the Internet and displaying the description information; acquiring a target television live broadcast channel selected by a user, and determining a DTMB demodulation parameter corresponding to the target television live broadcast channel; receiving audio and video data of each television live broadcast channel transmitted by a second server based on a DTMB protocol through a cable television network; demodulating the audio and video data according to the DTMB demodulation parameters to obtain the audio and video data of the target television live channel from the audio and video data; and playing audio and video data of the target television live channel.
In an embodiment of the present invention, the description information of the live tv channel includes program information and service information of the live tv channel.
In order to achieve the above and other related objects, the present invention provides a live tv broadcast apparatus, which is applied to an intelligent tv, and the apparatus includes: the description information acquisition module is used for acquiring and displaying the description information of each television live channel from a first server in communication connection through the Internet; the system comprises a user channel selection module, a target television live channel selection module and a DTMB demodulation module, wherein the user channel selection module is used for acquiring the target television live channel selected by a user and determining a DTMB demodulation parameter corresponding to the target television live channel; the audio and video data acquisition module is used for receiving audio and video data of each television live broadcast channel transmitted by the second server based on the DTMB protocol through the cable television network; the DTMB demodulation module is used for demodulating the audio and video data according to the DTMB demodulation parameters so as to obtain the audio and video data of the target television live channel from the audio and video data; and the target channel playing module is used for playing the audio and video data of the target television live channel.
In an embodiment of the present invention, the description information of the live tv channel includes program information and service information of the live tv channel.
To achieve the above and other related objects, the present invention provides a computer-readable storage medium, in which a computer program is stored, and the computer program is loaded and executed by a processor to implement the live tv broadcasting method.
To achieve the above and other related objects, the present invention provides a smart tv set, including: the system comprises a processor, a memory, a communicator and a display screen; the display screen is used for displaying the description information of each live television channel and playing the audio and video of the target live television channel; the communicator is used for establishing communication connection with external equipment; the memory is used for storing a computer program; the processor is used for loading and executing the computer program so as to enable the electronic equipment to execute the television live broadcast method.
As described above, the live television broadcast method, device, system, readable storage medium and smart television set of the present invention have the following beneficial effects: the existing network infrastructure and terminal equipment can be fully utilized, service is prevented from being provided through the third-party CDN, and therefore the operation cost of live television is effectively saved.
Drawings
Fig. 1 is a schematic view of an application architecture of a live tv broadcast method according to an embodiment of the present invention.
Fig. 2 is a schematic diagram illustrating a tv live broadcasting method according to an embodiment of the present invention.
Fig. 3 is a flowchart illustrating a live tv broadcasting method according to another embodiment of the present invention.
Fig. 4 is a block diagram of a tv live broadcasting apparatus according to an embodiment of the present invention.
Fig. 5 is a schematic structural diagram of an intelligent television according to an embodiment of the present invention.
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict.
It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention, and the components related to the present invention are only shown in the drawings rather than drawn according to the number, shape and size of the components in actual implementation, and the type, quantity and proportion of the components in actual implementation may be changed freely, and the layout of the components may be more complicated.
The invention provides a method and a system for fusing Television direct Broadcasting services of Digital Television ground broadcast (DTMB), cable Television network (also called Hybrid Fiber-Coaxial (HFC)) and internet, wherein the system fully utilizes three existing conditions:
1. the current television set forcibly supports the reception of digital television terrestrial broadcast signals, namely all the current television sets support the reception, analysis and playing of signals transmitted by adopting a terrestrial digital television standard DTMB;
2. the HFC infrastructure of the cable television network is perfect;
3. the family broadband has high popularity, the broadband supports bidirectional interaction, and can fully utilize the convenience of data acquisition under a bidirectional interaction network to acquire Program Information and Service Information (namely Program Specific Information/Service Information: PSI/SI, including PAT, PMT, NIT, SDT, EIT and the like) of a television live channel.
The invention integrates the three existing conditions, constructs a novel television live broadcast service which integrates a broadband network, adopts the digital television terrestrial broadcasting DTMB standard and transmits video stream through the cable television network HFC, and has low cost, wide coverage and quick deployment.
Table 1 compares the characteristics of the three current live types. The invention provides a new television live broadcast service form by integrating various live broadcast services to obtain advantages, wherein each key dimension of the live broadcast service is shown as the content outlined by a square frame in table 1:
TABLE 1
As shown in fig. 1, the live broadcast service of the present invention is a service similar to the live broadcast service of the internet from the viewpoint of the user terminal. The operator adopts an APK mode to distribute to users, and the users can use the new live television service after installing the new live television service on an application store or a smart television through a U disk.
The antenna of the user's smart tv needs to be connected to the cable interface of the local cable operator at home. The television antenna and cable interface are typically connected by a 75 ohm coaxial cable.
Cable television operators modulate each live channel data (audio and video data) according to the DTMB standard at a DTMB front-end server and transmit the data to the homes of users through a cable television HFC network. When a user watches live broadcast, the signal is the signal which is transmitted by a cable television HFC network and follows the DTMB modulation standard, after the signal is accessed to a television through an antenna, the live broadcast channel data of the digital signal is analyzed through a DTMB receiving end and a demodulator of the television and sent to the television for playing.
When a user watches live channels, the needed program information and service information PSI/SI of various live channels comprise channel names, frequency points of the channels, channel numbers, audio and video PID and types, program numbers, program lists and the like, and the program information and the service information PSI/SI are acquired by accessing an EPG server of a cable television operator or an operator partner through the Internet through a connected broadband network and adopting a standard HTTP protocol.
In detail, the live television broadcasting method of the present invention comprises the following steps:
step one, a first server, namely a DTMB front-end server of a cable television operator in FIG. 1, provides description information of each television live broadcast channel to a smart television which is in communication connection through the Internet; the description information of the live television channel comprises program information and service information of the live television channel, including a channel name, a frequency point where the channel is located, a channel number, an audio and video PID and type, a program number, a program list and the like.
It should be noted that the staff of the second server enters the Program information and the service information matched with the cable television operator DTMB front-end server into the content management system CMS of the second server, and further issues the Program information and the service information as an Electronic Program Guide (EPG) service for the user through a standard HTTP protocol.
It should be noted that the live broadcast service APK developed by an operator is installed in advance in the smart television of this embodiment, and a user may install the live broadcast service APK in an application store or on the smart television through a usb disk in advance, and after the operation, the user can use the novel live broadcast service of this embodiment by accessing the EPG server. The antenna of the smart television of the embodiment is connected to an interface of a cable television network for home, and is connected to the internet through a network cable or WiFi.
And step two, the intelligent television receives and displays the description information of each live television channel, such as presenting a program list of the channel.
And step three, the intelligent television acquires a target television live channel selected by a user and determines DTMB demodulation parameters corresponding to the target television live channel.
Specifically, a user selects a specific channel on the smart television, and the APK sets the DTMB demodulation parameters of the smart television according to the acquired frequency point information and program number of the channel. The setting mode includes but is not limited to:
in the first mode, frequency point information of different channels and DTMB demodulation parameters corresponding to program numbers are stored locally in the intelligent television, and the APK searches the corresponding DTMB demodulation parameters locally according to the frequency point information of the channel selected by a user and the program numbers;
and secondly, the intelligent television does not locally store frequency point information of different channels and DTMB demodulation parameters corresponding to program numbers, the associated information is stored in the EPG server, and the APK requests the corresponding DTMB demodulation parameters from the EPG server according to the frequency point information of the channel selected by the user and the program numbers.
And fourthly, the second server transmits audio and video data of each live television channel to the intelligent television through the cable television network based on the DTMB protocol.
And fifthly, the intelligent television receives the audio and video data of each live television channel and demodulates the audio and video data according to the DTMB demodulation parameters so as to obtain the audio and video data of the target live television channel from the audio and video data and play the audio and video data.
Specifically, after determining a DTMB demodulation parameter of a channel selected by a user, the APK demodulates the received video stream based on the DTMB demodulation parameter, and sets a player of the smart television to play the audio and video of the channel according to a previously acquired program number, audio and video PID and audio and video type of the channel.
The protection scope of the live television broadcast method of the present invention is not limited to the execution sequence of the steps listed in this embodiment, and all the schemes of adding, subtracting, and replacing steps in the prior art according to the principle of the present invention are included in the protection scope of the present invention.
Fig. 3 shows specific steps performed by the smart tv set in fig. 1, including:
s31: acquiring description information of each television live channel from a first server in communication connection through the Internet and displaying the description information;
s32: acquiring a target television live broadcast channel selected by a user, and determining a DTMB demodulation parameter corresponding to the target television live broadcast channel;
s33: receiving audio and video data of each television live broadcast channel transmitted by a second server based on a DTMB protocol through a cable television network;
s34: demodulating the audio and video data according to the DTMB demodulation parameters to obtain the audio and video data of the target television live channel from the audio and video data;
s35: and playing audio and video data of the target television live channel.
Since the principle of the embodiment of the method is the same as that of the embodiment of the method, the details of the same embodiment are not repeated.
All or part of the steps for implementing the above method embodiments may be performed by hardware associated with a computer program. Based upon such an understanding, the present invention also provides a computer program product comprising one or more computer instructions. The computer instructions may be stored in a computer readable storage medium. The computer-readable storage medium can be any available medium that a computer can store or a data storage device, such as a server, a data center, etc., that is integrated with one or more available media. The usable medium may be a magnetic medium (e.g., floppy Disk, hard Disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., Solid State Disk (SSD)), among others.
Referring to fig. 4, the present embodiment provides a live tv broadcasting apparatus 40, which is installed in an electronic device, such as an intelligent tv, as a piece of software to execute the live tv broadcasting method in the foregoing method embodiment when running. Since the technical principle of the embodiment of the apparatus is similar to that of the embodiment of the method, repeated description of the same technical details is omitted.
The tv live broadcasting apparatus 40 of this embodiment specifically includes:
the description information obtaining module 41 is configured to obtain description information of each live tv channel from a first server in communication connection through the internet and display the description information;
the user channel selection module 42 is configured to acquire a target live television channel selected by a user, and determine a DTMB demodulation parameter corresponding to the target live television channel;
the audio/video data acquisition module 43 is configured to receive, through the cable television network, audio/video data of each live television channel transmitted by the second server based on the DTMB protocol;
the DTMB demodulation module 44 is configured to demodulate the audio and video data according to the DTMB demodulation parameters to obtain the audio and video data of the target television live channel from the audio and video data;
the target channel playing module 45 is configured to play audio and video data of the target live television channel.
Those skilled in the art should understand that the division of the modules in the embodiment of fig. 4 is only a logical division, and the actual implementation can be fully or partially integrated into one or more physical entities. And the modules can be realized in a form that all software is called by the processing element, or in a form that all the modules are realized in a form that all the modules are called by the processing element, or in a form that part of the modules are called by the hardware. For example, the user channel selection module 42 may be a separate processing element, or may be integrated into a chip, or may be stored in a memory in the form of program code, and a certain processing element may call and execute the functions of the user channel selection module 42. Other modules are implemented similarly. The processing element described herein may be an integrated circuit having signal processing capabilities. In implementation, each step of the above method or each module above may be implemented by an integrated logic circuit of hardware in a processor element or an instruction in the form of software.
Referring to fig. 5, the present embodiment provides an intelligent tv 50, which at least includes, connected by a bus 41: the device comprises a memory 42, a processor 43, a communicator 44 and a display screen 45, wherein the display screen 45 is used for showing description information of each live television channel and playing audio and video of a target live television channel, the communicator 44 is used for establishing communication connection with an external device, the memory 42 is used for storing computer programs, and the processor 43 is used for executing the computer programs stored in the memory 42 so as to execute all or part of the steps in the foregoing method embodiments.
The above-mentioned system bus may be a Peripheral Component Interconnect (PCI) bus, an Extended Industry Standard Architecture (EISA) bus, or the like. The system bus may be divided into an address bus, a data bus, a control bus, and the like. For ease of illustration, only one thick line is shown, but this does not mean that there is only one bus or one type of bus. The communication interface is used for realizing communication between the database access device and other equipment (such as a client, a read-write library and a read-only library). The Memory may include a Random Access Memory (RAM), and may further include a non-volatile Memory (non-volatile Memory), such as at least one disk Memory.
The Processor may be a general-purpose Processor, and includes a Central Processing Unit (CPU), a Network Processor (NP), and the like; the Integrated Circuit may also be a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other Programmable logic device, a discrete Gate or transistor logic device, or a discrete hardware component.
In summary, the live television broadcast method, device and system, the readable storage medium and the smart television set of the present invention can make full use of the existing network infrastructure and terminal equipment, and avoid providing services through the third-party CDN, thereby effectively saving the operation cost of live television broadcast. Therefore, the invention effectively overcomes various defects in the prior art and has high industrial utilization value.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (10)
1. A live television broadcasting method is characterized by comprising the following steps:
the first server provides description information of each television live broadcast channel to the intelligent television which is in communication connection through the Internet;
the intelligent television receives and displays the description information of each live television channel; acquiring a target television live broadcast channel selected by a user, and determining a DTMB demodulation parameter corresponding to the target television live broadcast channel;
the second server transmits audio and video data of each television live broadcast channel to the intelligent television through the cable television network based on the DTMB protocol;
and the intelligent television receives the audio and video data of each live television channel and demodulates the audio and video data according to the DTMB demodulation parameters so as to obtain the audio and video data of the target live television channel from the audio and video data and play the audio and video data.
2. The method of claim 1, wherein the description information of the live tv channel comprises program information and service information of the live tv channel.
3. A live television system, comprising:
the first server is used for providing description information of each live television channel so that an intelligent television at a user side can obtain and display the description information of each live television channel through the Internet;
the second server is used for transmitting audio and video data of each live television channel to the intelligent television set at the user side through the cable television network based on the DTMB protocol;
the intelligent television is used for acquiring a target television live broadcast channel selected by a user, demodulating the audio and video data by using the DTMB demodulation parameter corresponding to the target television live broadcast channel, and acquiring and playing the audio and video data of the target television live broadcast channel from the audio and video data.
4. The system of claim 3, wherein the description information of the live television channel comprises program information and service information of the live television channel.
5. A live television broadcasting method is applied to an intelligent television, and comprises the following steps:
acquiring description information of each television live channel from a first server in communication connection through the Internet and displaying the description information;
acquiring a target television live broadcast channel selected by a user, and determining a DTMB demodulation parameter corresponding to the target television live broadcast channel;
receiving audio and video data of each television live broadcast channel transmitted by a second server based on a DTMB protocol through a cable television network;
demodulating the audio and video data according to the DTMB demodulation parameters to obtain the audio and video data of the target television live channel from the audio and video data;
and playing audio and video data of the target television live channel.
6. The method of claim 5, wherein the description information of the live television channel comprises program information and service information of the live television channel.
7. A live television broadcast device is applied to an intelligent television, and the live television broadcast device comprises:
the description information acquisition module is used for acquiring and displaying the description information of each television live channel from a first server in communication connection through the Internet;
the system comprises a user channel selection module, a target television live channel selection module and a DTMB demodulation module, wherein the user channel selection module is used for acquiring the target television live channel selected by a user and determining a DTMB demodulation parameter corresponding to the target television live channel;
the audio and video data acquisition module is used for receiving audio and video data of each television live broadcast channel transmitted by the second server based on the DTMB protocol through the cable television network;
the DTMB demodulation module is used for demodulating the audio and video data according to the DTMB demodulation parameters so as to obtain the audio and video data of the target television live channel from the audio and video data;
and the target channel playing module is used for playing the audio and video data of the target television live channel.
8. The apparatus of claim 7, wherein the description information of the live tv channel comprises program information and service information of the live tv channel.
9. A computer-readable storage medium, in which a computer program is stored which, when loaded and executed by a processor, carries out a live television broadcast method as claimed in claim 5 or 6.
10. An intelligent television set, comprising: the system comprises a processor, a memory, a communicator and a display screen; the display screen is used for displaying the description information of each live television channel and playing the audio and video of the target live television channel;
the communicator is used for establishing communication connection with external equipment;
the memory is used for storing a computer program;
the processor is configured to load and execute the computer program to cause the electronic device to execute the live television broadcast method according to claim 5 or 6.
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