CN104935957A - Terminal system for playing 4k video, 4k cloud platform and playback system - Google Patents

Abstract

The invention provides a terminal system, 4k cloud platform and play system for playing a 4k video. The terminal system comprises a 4k intelligent television, a 4k ultrahigh-definition line and an interaction set top box, wherein the interaction set top box is connected with the 4k intelligent television and sends an operation instruction to a 4k cloud platform; the 4k ultrahigh-definition line is connected with the 4k intelligent television, receives 4k digital TS flow sent by the 4k cloud platform and sends the 4k digital TS flow to the 4k intelligent television; and the 4k intelligent television is used for performing decoding playing on the 4k digital TS flow. According to the invention, a user can play a 4k video in presence of the 4k intelligent television set and the interaction set top box, the existing value of the interaction set top box is improved, and the benefits of a service provider are protected.

Description

Terminal system for playing 4k video, 4k cloud platform and playback system

technical field

The invention belongs to the field of television broadcasting, in particular to a terminal system for playing 4K video, a 4K cloud platform and a broadcasting system.

Background technique

With the development of video technology, following high-definition and ultra-high-definition, 4k video appeared, that is, video with a resolution of 4096x2160 and a total of more than 8 million pixels. Due to the extremely high resolution, the definition of 4k video is much better than that of 1080p. If 1080p can be seen clearly, then 4k video can be seen clearly. Such a high definition requires a device with high performance and large memory. At present, the 4K display solution has become the industry standard recognized by the vast majority of 4K smart TV manufacturers, TV media, and network streaming services, and various terminal devices that support 4K video playback have emerged, such as 4K smart TVs, 4K set-top boxes, and 4K mobile phones. .

4k smart TV plays 4k video through broadcasting network or Internet. For high-definition programs, the bandwidth of the video stream compressed by H264 needs to be about 10M to truly display the high-definition effect. The bandwidth required by 4k smart TV is four times that of 1080P. Although the H265 compression protocol is used, it can theoretically save 50% of the bandwidth compared to H264. But at least those who need more than 20M can transmit programs in real time smoothly. In the way of transmitting program sources through IP protocol, a Gigabit server can only serve 50 4k users at the same time.

Playing 4K video through the radio and television network requires cooperation with different radio and television operators. Judging from the current situation in the country, the business of radio and television operators in various regions is very different, and TV manufacturers need to invest a lot of manpower and material resources to meet this difference in terms of demand, technology, software, and hardware. Even if it is produced, the business of radio and television is constantly changing, so TV manufacturers must continue to invest resources to meet the changing needs of radio and television, and maintain and update their software and hardware. At the same time, radio and television operators play 4k video through the Internet, and they need to carry out a substantial transformation of the current network facilities and content service centers. It is necessary to invest in the purchase of a large number of servers to establish a content center and expand network bandwidth. Both content server and network bandwidth require multiplied investment.

Use a 4k set-top box to replace the current interactive set-top box. As early as 2013, there was news that Intel might produce the world's first set-top box device that can truly play 4k content. Benefiting from the research and development of the fourth-generation Haswell processor that supports 4K resolution, analysts pointed out that if Intel combines Haswell processor technology with the upcoming TV set-top box, it is expected to release the world's first true 4K content device. It's a pity that until today, we haven't heard more news about this mysterious 4k set-top box.

For radio and television network operators, how to enable users to quickly have terminals that play 4k programs is a top priority. Looking at the current situation of 4k set-top boxes, 4k set-top box chips have just entered the commercial stage, and only a few operators are purchasing and using 4k set-top boxes. In addition, radio and television operators have already invested a lot of financial and material resources from ordinary set-top boxes to interactive set-top boxes. If they simply use domestic 4K set-top boxes to replace the current interactive set-top boxes, it will be a huge waste of resources. Therefore, how to make the interactive set-top box unchanged is a problem we are facing to play the 4k on-demand video of radio and television.

Contents of the invention

The invention provides a terminal system for playing 4k video, a 4k cloud platform and a playback system, which are used to solve the problem that users cannot perform 4k video on demand in the case of a 4k smart TV and an interactive set-top box.

In order to solve the above problems, the technical solutions provided by the present invention are as follows:

A terminal system for playing 4k video, the terminal system includes: a 4k smart TV, a 4k ultra clear line and an interactive set-top box. The interactive set-top box is connected to the 4k smart TV, and sends operation instructions to the 4k cloud platform; the 4k ultra-clear cable is connected to the 4k smart TV, receives the 4k digital TS stream sent by the 4k cloud platform, and sends the 4k digital TS stream to the 4k smart TV for display. 4k smart TVs are used to decode and play 4k digital TS streams.

Further, the operation instruction includes interactive set-top box information and on-demand video information.

Furthermore, the interactive set-top box also sends manipulation instructions to the 4k cloud platform for controlling the 4k smart TV to play 4k video. The manipulation instruction includes interactive set-top box information and control information.

Further, the 4k smart TV includes a 4k application proxy module connected to the 4k ultra-clear line, the 4k application proxy module controls the 4k ultra-clear line to tune the 4k digital TS stream, and calls the 4k video decoding inside the 4k smart TV The device decodes and plays the 4k digital TS stream.

Further, the 4k application agent module controls the 4k ultra-clear line to tune the 4k digital TS stream, calls the 4k video decoder inside the 4k smart TV to decode and play the 4k digital TS stream further includes:

The 4k application proxy module obtains the 4k ultra-clear line information corresponding to the interactive set-top box sent by the 4k cloud platform and the playback frequency of the 4k digital TS stream from a fixed frequency point; detects the 4k ultra-clear line information corresponding to the interactive set-top box Whether the 4k ultra-clear line matches, if it matches, set the 4k ultra-clear line to obtain the 4k digital TS stream from the playback frequency of the 4k digital TS stream, and send the 4k digital TS stream to the 4k video decoding inside the 4k smart TV The device decodes and plays the 4k digital TS stream.

The present invention also provides a 4k cloud platform for playing 4k video, and the 4k cloud platform includes an information server and a streaming server. The information server is used to provide 4k video, and the streaming server is used to receive the operation instruction sent by the interactive set-top box, obtain the on-demand 4k video from the information server according to the operation instruction, and perform streaming processing on the on-demand 4k video to form a 4k digital video. TS stream, send the 4k digital TS stream to the corresponding 4k ultra-clear line of the interactive set-top box.

Further, the operation instructions received by the 4k cloud platform include interactive set-top box information and on-demand video information.

Furthermore, the streaming server also receives the control command sent by the interactive set-top box, performs streaming processing on the 4k video on demand according to the control command to form a 4k digital TS stream, and sends the 4k digital TS stream to the corresponding 4k ultra-clear line of the interactive set-top box.

Further, the streaming server further includes a session management module, a streaming module, an edge resource management module, and an edge modulator (IPQAM);

The edge resource management module is used to monitor the frequency point status of IPQAM, and sends the monitored available playback frequency points to the session management module;

The session management module receives operation instructions and available playback frequency points, and sends operation instructions and available playback frequency points to the streaming module;

The streaming module obtains the on-demand 4k video from the information server according to the on-demand video information, obtains the 4k ultra-clear line information corresponding to the interactive set-top box from the information server according to the interactive set-top box information, and performs streaming processing on the on-demand 4k video to form a 4k digital TS stream , send the 4k digital TS stream, the 4k ultra-clear line information corresponding to the interactive set-top box and the available playback frequency points to IPQAM;

IPQAM sends the 4k digital TS stream to the 4k ultra-clear line corresponding to the interactive set-top box through the available playback frequency point, and IPQAM sends the playback frequency point corresponding to the 4k digital TS stream and the 4k ultra-clear line information corresponding to the interactive set-top box through a fixed frequency point To the 4k ultra-clear line corresponding to the interactive set-top box.

The present invention also provides a playback system for playing 4k video, which includes the above-mentioned terminal system and a 4k cloud platform.

To sum up the above technical solutions, the 4k cloud platform obtains the video requested by the user from the information server according to the operation instructions sent by the interactive set-top box, and the streaming server processes the video requested, and sends the processed result to the 4k ultra-clear line , further, 4k Ultra Clear Line sends the received 4k digital TS stream to 4k smart TV, and calls the decoding function of 4k smart TV to realize the playback of on-demand 4k video. The present invention is compatible with the existing deployed radio and television on-demand systems, enabling users to play 4k videos when they have 4k smart TVs and interactive set-top boxes, improving the existing value of the interactive set-top boxes, and protecting the interests of operators.

Description of drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For Those of ordinary skill in the art can also obtain other drawings based on these drawings without any creative effort.

FIG. 1 is a structural diagram of a terminal system for playing 4k video according to an embodiment of the present invention;

Fig. 2 is a terminal system connection diagram for playing 4k video according to an embodiment of the present invention;

Fig. 3 is a 4k cloud platform structural diagram for playing 4k video according to an embodiment of the present invention;

FIG. 4 is a structural diagram of a streaming server according to an embodiment of the present invention;

5 is a schematic diagram of a system for playing 4k video according to an embodiment of the present invention;

Fig. 6 is a flow chart of displaying a 4k electronic program guide according to an embodiment of the present invention;

7 is a flow chart of an interactive set-top box starting a 4k smart TV to play 4k video according to an embodiment of the present invention;

FIG. 8 is a flowchart of an interactive set-top box controlling a 4k smart TV to play 4k video according to an embodiment of the present invention.

Detailed ways

In order to make the technical features and effects of the present invention more obvious, the technical solutions of the present invention will be further described below in conjunction with the accompanying drawings. The present invention can also be described or implemented in other different specific examples. The equivalent transformations done within all belong to the protection category of the present invention. The "connection" described below refers to electrical connection or other forms of dedicated line connection.

As shown in FIG. 1 , a terminal system for playing 4k video according to an embodiment of the present invention includes a 4k smart TV 20 , a 4k ultra-clear cable 30 and an interactive set-top box 10 . The interactive set-top box 10 is connected to the 4k smart TV 20, and sends operation instructions to the 4k cloud platform 40; the 4k ultra-clear line 30 receives the 4k digital TS stream sent by the 4k cloud platform, and sends the 4k digital TS stream to the 4k smart TV 20, for 4k smart TV It is used to decode and play 4k digital TS stream.

It should be noted that, as shown in Figure 2, the interactive set-top box is connected to the 4k smart TV through an HDMI cable 22, and the 4k ultra-clear cable and the 4k smart TV can be connected through a USB cable 21, or the 4k ultra-clear cable Plug it directly into the USB interface of the 4k smart TV, and connect the other end of the 4k ultra-clear cable to the coaxial cable 24 for tuning and filtering to obtain the 4k digital TS stream sent by the 4k cloud platform. The interactive set-top box and the remote 4K cloud platform can be connected through a network cable 23 .

In an embodiment of the present invention, the 4k ultra-clear line is a hardware circuit for tuning and filtering, and the interactive set-top box is an existing interactive set-top box, such as a high-definition set-top box. The operation instruction sent by the interactive set-top box includes the information of the interactive set-top box and the video information on demand. Specifically, the information on the interactive set-top box in the operation instruction can be the ID of the interactive set-top box, and the video information on demand includes the name of the video and the introduction of the video. There is no limit to the specific content contained in the interactive set-top box information and the on-demand video information, as long as the interactive set-top box and the on-demand video information can be uniquely identified. In this embodiment, the 4k cloud platform stores a mapping table between an interactive set-top box and a 4k ultra-clear line. The ID gets the 4K ultra-clear line ID corresponding to the interactive set-top box, and the on-demand video is obtained according to the on-demand video information in the play command. The present invention does not limit the content of the mapping table between the interactive set-top box and the 4k ultra-clear line, as long as the interactive set-top box and the 4k ultra-clear line of the same user can be matched.

In an embodiment of the present invention, the 4k smart TV also includes a 4k application agent module inside, connected to the 4k ultra-clear line, the 4k application agent module controls the 4k ultra-clear line to tune the 4k digital TS stream, and calls the 4k video decoding inside the 4k smart TV The device decodes and plays the 4k digital TS stream. Further, the 4k application agent module obtains the 4k ultra-clear line information corresponding to the interactive set-top box sent by the 4k cloud platform and the playback frequency of the 4k digital TS stream from a fixed frequency point, and detects the 4k ultra-clear line information and the 4k application of the interactive set-top box in real time Whether the 4k ultra-clear line information stored in the proxy module matches, if it matches, set the frequency point of the 4k ultra-clear line, so that the 4k ultra-clear line obtains the 4k digital TS stream from the playback frequency point of the 4k digital TS stream, and Perform tuning and filtering, and send the processed 4k digital TS stream to the 4k video decoder inside the 4k smart TV for decoding and playback; if it does not match, continue to detect. For example, the information sent by the 4k cloud platform through fixed frequency points includes playback frequency point FP_1 and 4k ultra-clear line ID_1 (corresponding to user 1), playback frequency point FP_2 and 4k ultra-clear line ID_2 (corresponding to user 2), playback frequency point FP_3 and 4k ultra-clear line ID_3 (corresponding to user 3), after the 4k application agent module of user 2 detects that the information sent by the 4k cloud platform contains the relevant information of 4k ultra-clear line ID_2, according to the playback frequency FP_2, the 4k ultra-clear line Set the frequency point so that the 4k ultra-clear line can tune the 4k digital TS stream on the playback frequency point FP_2, and send the tuned 4k digital TS stream to the 4k application agent module, and the 4k application agent module will further call the internal 4k smart TV The 4k video decoder decodes and plays the 4k digital TS stream.

It should be noted that the 4k application agent module is a processor or a controller, and the 4k ultra-clear line information stored inside the 4k application agent module is the relevant information of the 4k ultra-clear line connected to the 4k smart TV, which is related to the 4k cloud The information storage form of the 4K ultra-clear line in the platform is consistent. Further, the 4k application agent module also has a buffering function, which caches the 4k digital TS stream, so that the 4k smart TV can smoothly play the 4k video requested by the user. The 4k application proxy module installed in the 4k smart TV has agreed with the 4k cloud platform to obtain the playback frequency from a fixed frequency, and the playback frequency of all 4k videos on demand can be obtained from the fixed frequency. Optionally, before sending the operation instruction to the 4k cloud platform, the interactive set-top box also sends an instruction to obtain an electronic program guide, which is used to obtain an electronic program guide (Electronic Program Guide, EPG) from the 4k cloud platform and send it to the 4k cloud platform. The smart TV makes it displayed in the form of a browser, which is convenient for users to select 4k programs. Specifically, the command to obtain the electronic program guide includes the ID of the interactive set-top box and the request information for obtaining the EPG. After receiving the command to obtain the electronic program guide, the 4k cloud platform obtains the EPG corresponding to the ID of the interactive set-top box, and streams the EPG to form a streaming page. and send it to the interactive set-top box. Please refer to Figure 2 again, the 4k cloud platform sends the streamed EPG to the interactive set-top box through the network cable 23, and further, the interactive set-top box transmits the streamed page to the 4k smart TV for display. In addition, the 4k cloud platform can also send the streamed EPG to the 4k ultra-clear line, and then send it to the 4k smart TV display through the 4k ultra-clear line. The present invention does not limit the way of obtaining and displaying the EPG.

Further, the interactive set-top box also sends manipulation commands to the 4k cloud platform for controlling the 4k smart TV to play 4k videos, wherein the manipulation commands include interactive set-top box information and control information of the 4k video on demand, and the control information includes pause, play, and fast forward , Rewind, Resume, Exit. The specific operation process will be described in the following embodiments, and will not be repeated here.

As shown in FIG. 3 , in an embodiment of the present invention, the 4k cloud platform includes an information server 41 and a streaming server 42 . The information server 41 is used to provide 4k video, and the streaming server 42 receives the operation instruction sent by the interactive set-top box, obtains the on-demand video from the information server 41 according to the operation instruction, and performs streaming processing on the on-demand video to form a 4k digital TS stream. The digital TS stream is sent to the corresponding 4k ultra-clear line of the interactive set-top box.

Specifically, the operation instructions obtained by the streaming server 42 include interactive set-top box information and on-demand video information. The information server 41 stores the mapping table between the interactive set-top box and the 4k ultra-clear line, and the streaming server 42 obtains the 4k ultra-clear line information corresponding to the interactive set-top box from the information server 41 according to the information of the interactive set-top box, and obtains the on-demand video from the information server according to the video-on-demand information. 4k video.

In an embodiment of the present invention, the information server 41 also stores an electronic program guide, and the information server 41 receives an instruction to obtain the electronic program guide sent by the interactive set-top box, and obtains the electronic program guide from the information server. Optionally, the streaming server 42 streams the EPG and sends it to the interactive set-top box, and then the interactive set-top box sends it to the 4k smart TV for display. In another embodiment of the present invention, the streaming server 42 streams the electronic program list to form a streaming page, sends the streaming page to the corresponding 4k ultra-clear line of the interactive set-top box, and the 4k ultra-clear line calls the relevant decoding unit to make the 4k Smart TV showing electronic program list.

Optionally, the push stream server 42 also receives the control instruction sent by the interactive set-top box. The control instruction includes the interactive set-top box information and control information. According to the control information, the on-demand video is streamed to form a 4k digital TS stream, and the 4k digital TS The stream is sent to the corresponding 4K ultra-clear line of the interactive set-top box, so as to realize the control of the on-demand video, wherein the control information includes pause, play, fast forward and fast rewind, resume playback, and exit.

As shown in Figure 4, Figure 4 is a structural diagram of a streaming server according to an embodiment of the present invention, the streaming server 42 further includes a session management module (Session Manager, SM) 421, a streaming module (Video Stream Server, VSS) 422 , an edge resource management module (Edege Resource Manager, ERM) 423 and an IPQAM module 424, used to output the response result of the operation command from the interactive set-top box to the terminal device, and display it on the 4k smart TV. The specific process for the streaming server to send the on-demand 4k video to the corresponding 4k ultra-clear line of the interactive set-top box is as follows:

1. The edge resource management module 423 monitors the IPQAM frequency point status in real time, and sends the monitored available playback frequency points to the session management module 421 .

2. The session management module 421 receives the operation instruction, obtains the available playback frequency points from the edge resource management module 423 , and sends the operation instruction and the available playback frequency points to the streaming module 422 .

3. The streaming module 422 receives the operation instruction and the available playback frequency points sent by the session management module 421, obtains the 4k ultra-clear line information corresponding to the interactive set-top box from the information server according to the interactive set-top box information, and obtains the on-demand video from the information server according to the on-demand video information The 4k video on demand is streamed to form a 4k digital TS stream, and the 4k digital TS stream, the 4k ultra-clear line information corresponding to the interactive set-top box and the available playback frequency are sent to IPQAM.

4. The IPQAM module 424 receives the 4k digital TS stream sent by the streaming module 422, the 4k ultra-clear line information corresponding to the interactive set-top box, and the available playback frequency points. When there are multiple available playback frequency points, IPQAM selects from these available playback frequency points Randomly select a playback frequency point, and send the 4k digital TS stream to the 4k ultra-clear line corresponding to the interactive set-top box. When there is only one available playback frequency point, IPQAM will send the 4k digital TS stream to the interactive set-top box according to the available playback frequency point. The 4K ultra-clear line corresponding to the set-top box. IPQAM sends the playback frequency point corresponding to the 4k digital TS stream and the 4k ultra-clear line information corresponding to the interactive set-top box to the 4k ultra-clear line corresponding to the interactive set-top box through a fixed frequency point.

It should be noted that, in one embodiment of the present invention, the streaming module stores the 4k video that the terminal has ever ordered, and when the operation command sent by the user next time contains the previously ordered video, the streaming module directly obtains the video on demand. Video, no need to get it from the information server. In this way, the time for obtaining video from the information server can be reduced, and the speed of responding to user operation instructions can be accelerated.

Please refer to Fig. 5, which is a structural diagram of a system for playing 4k video according to an embodiment of the present invention. The system includes a terminal system and a 4k cloud platform, wherein the terminal system includes a 4k ultra-clear line 30, an interactive set-top box 10 and 4k smart TV 20. The 4k cloud platform includes a streaming server and an information server 41, and the streaming server further includes a session management module (Session Manager, SM) 421, a streaming module (Video Stream Server, VSS) 422, an edge resource management module ( Edege Resource Manager, ERM) 423 and IPQAM module 424.

The following three embodiments are used to illustrate the display process of 4k EPG, the process of starting the 4k smart TV to play 4k video by the interactive set-top box, and the process of controlling the playback of the 4k smart TV by the remote control of the interactive set-top box.

1. The display process of 4k EPG

As shown in Figure 6, when the user clicks the 4k EPG button on the remote control, the interactive set-top box receives the command to obtain the 4k EPG Portal sent by the user, and sends it to the information server through the network cable. According to the interactive set-top box ID stored in the information server and 4k ultra-clear line ID mapping table (S-D mapping table), get the 4k ultra-clear line ID corresponding to the interactive set-top box ID, obtain the 4k EPG data customized by the user from the information server according to the instruction, stream the 4k EPG, and send it to 4k Smart TV display. Users can choose the 4k video they want to watch according to the EPG displayed in the 4k smart TV.

It should be noted that the S-D mapping table and the EPG in the information server are stored separately. The information server may also include a streaming module, which sends the obtained 4k EPG to the streaming module, and the streaming module directly sends the streaming page formed by streaming to the terminal. In this way, the workload of the streaming server can be reduced, so that the processing of the electronic program list and 4k video can be performed separately without interfering with each other.

2. The set-top box starts the process of playing 4k video on the TV

As shown in Figure 7, the user selects the 4k video or program to be played through the remote control, and the interactive set-top box sends the playback instruction to the 4k cloud platform, according to the mapping between the interactive set-top box ID and the 4k ultra-clear line ID stored in the information server Table (S-D mapping table) to obtain the ID of the 4k ultra-clear line corresponding to the ID of the interactive set-top box, the session management module SM receives and plays the 4k digital TS code stream instruction, and the session management module SM receives the available playback frequency monitored by the edge resource management module ERM (the process of distributing IPQAM among the accompanying drawings 7), the streaming module VSS obtains the 4k video on demand from the information server according to the playback instruction, and the streaming module VSS carries out streaming processing (streaming PCI) to the 4k video on demand to form a 4k digital TS stream, send 4k digital TS stream to IPQAM, and further, IPQAM will send 4k digital TS stream, 4k ultra-clear line ID corresponding to interactive set-top box ID and playback frequency of 4k digital TS stream to 4k ultra-clear line, when 4k When the application proxy module (4K_Svr) detects that the received information of the 4K ultra-clear line matches the 4K ultra-clear line information stored by the 4K application proxy module, the 4K application proxy module starts the 4K player inside the 4K smart TV to realize 4K video play.

3. The interactive set-top box remote control controls the playback process of 4k smart TV

As shown in Figure 8, when the user clicks the control button on the remote control, the set-top box sends a control command to the session management module SM of the streaming server, and the streaming module VSS streams the 4k video on demand according to the control command to form a 4k digital TS stream. Send the 4k digital TS stream, the playback frequency of the 4k digital TS stream, and the 4k ultra-clear line ID corresponding to the interactive set-top box ID to IPQAM, and send the 4k digital TS stream, the playback frequency of the 4k digital TS stream, and the interactive set-top box ID through IPQAM To the 4k ultra-clear line corresponding to the interactive set-top box. Different from the process of responding to 4k video playback instructions, the session management module SM no longer obtains available playback frequency points from the edge resource management module. Other processes of controlling 4k smart TV playback are the same as the process of responding to 4k smart TV playback. to repeat.

In this embodiment, the user sends an operation command to the interactive set-top box, and the interactive set-top box sends the operation command to the streaming server, obtains the 4K ultra-clear line corresponding to the interactive set-top box from the information server, obtains the video on demand from the information server, and Perform streaming processing on it to form a 4k digital TS stream, send the 4k digital TS stream to the 4k ultra-clear line, and the 4k ultra-clear line will send it to the 4k smart TV, and call the decoding capability of the 4k smart TV to realize the playback of the 4k video on demand . This embodiment is compatible with the existing deployed radio and television on-demand system, so that users can play 4k videos when they have 4k smart TVs and interactive set-top boxes, which improves the existing value of interactive set-top boxes and protects the interests of operators.

The above description is only used to illustrate the technical solutions of the present invention, and any person skilled in the art can modify and change the above embodiments without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention should be determined by the claims.

Claims (10)

1. A terminal system for playing 4k video, characterized in that, the terminal system comprises: 4k smart TV, 4k ultra clear line and interactive set-top box; The interactive set-top box is connected to the 4k smart TV, and sends operation instructions to the 4k cloud platform; The 4k ultra-clear line is connected to the 4k smart TV, receives the 4k digital TS stream sent by the 4k cloud platform, and sends the 4k digital TS stream to the 4k smart TV; The 4k smart TV is used to decode and play the 4k digital TS stream. 2. The terminal system according to claim 1, wherein the operation instruction includes interactive set-top box information and on-demand video information. 3. The terminal system according to claim 1, wherein the interactive set-top box also sends a control instruction to the 4k cloud platform for controlling the 4k smart TV to play 4k video. 4. The terminal system according to claim 1, wherein the 4k smart TV includes a 4k application agent module connected to the 4k ultra-clear line, and the 4k application agent module controls the 4k ultra-clear line Tuning the 4k digital TS stream, calling the 4k video decoder inside the 4k smart TV to decode and play the 4k digital TS stream. 5. The terminal system according to claim 4, wherein the 4k application proxy module controls the 4k ultra-clear line to tune the 4k digital TS stream, and calls the 4k video decoder inside the 4k smart TV Decoding and playing the 4k digital TS stream further includes: The 4k application agent module acquires the 4k ultra-clear line information corresponding to the interactive set-top box sent by the 4k cloud platform and the playback frequency of the 4k digital TS stream from a fixed frequency point; Detect whether the 4k ultra-clear line information corresponding to the interactive set-top box matches the 4k ultra-clear line information in the 4k application agent module, and if they match, set the playback frequency of the 4k ultra-clear line from the 4k digital TS stream Obtain the 4k digital TS stream, send the 4k digital TS stream to the 4k video decoder inside the 4k smart TV, and the 4k video decoder decodes and plays the 4k digital TS stream; if it does not match, Then continue testing. 6. A 4k cloud platform for playing 4k video, characterized in that, the 4k cloud platform includes an information server and a streaming server; The information server is used to provide 4k video; The push stream server receives the operation instruction sent by the interactive set-top box, obtains the 4k video on demand from the information server according to the operation instruction, performs streaming processing on the 4k video on demand to form a 4k digital TS stream, and transfers the 4k digital The TS stream is sent to the corresponding 4K ultra-clear line of the interactive set-top box. 7. The 4k cloud platform according to claim 6, wherein the operation instruction includes interactive set-top box information and on-demand video information. 8. The 4k cloud platform according to claim 7, wherein the streaming server also receives the manipulation instruction sent by the interactive set-top box, and performs streaming processing on the 4k video on demand according to the manipulation instruction to form 4k digital TS stream, sending the 4k digital TS stream to the 4k ultra-clear line corresponding to the interactive set-top box. 9. The 4k cloud platform according to claim 7, wherein the streaming server further comprises a session management module, a streaming module, an edge resource management module, and an edge modulator; The edge resource management module is used to monitor the frequency point status of the edge modulator, and send the monitored available playback frequency points to the session management module; The session management module receives the operation instruction and the available playback frequency, and sends the operation instruction and the available playback frequency to the streaming module; The streaming module obtains the 4k video on demand from the information server according to the video information on demand, and obtains the 4k ultra-clear line information corresponding to the interactive set-top box from the information server according to the interactive set-top box information, and the 4k video on demand Perform streaming processing to form a 4k digital TS stream, and send the 4k digital TS stream, the 4k ultra-clear line information corresponding to the interactive set-top box, and the available playback frequency to the edge modulator; The edge modulator sends the 4k digital TS stream to the 4k ultra-clear line corresponding to the interactive set-top box through the available playback frequency point, and the edge modulator sends the 4k digital TS stream to the 4k digital TS stream through a fixed frequency point The playback frequency point and the 4K ultra-clear line information corresponding to the interactive set-top box are sent to the 4K ultra-clear line corresponding to the interactive set-top box. 10. A playback system for playing 4k video, characterized in that it includes a terminal system and a 4k cloud platform; The terminal system comprises the terminal system according to any one of claims 1 to 5; The 4k cloud platform comprises the 4k cloud platform described in any one of claims 6 to 9.