WO2021196600A1 - 智慧屏反向投屏方法、系统、装置、智慧屏和可读存储介质 - Google Patents

智慧屏反向投屏方法、系统、装置、智慧屏和可读存储介质 Download PDF

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Publication number
WO2021196600A1
WO2021196600A1 PCT/CN2020/125807 CN2020125807W WO2021196600A1 WO 2021196600 A1 WO2021196600 A1 WO 2021196600A1 CN 2020125807 W CN2020125807 W CN 2020125807W WO 2021196600 A1 WO2021196600 A1 WO 2021196600A1
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WIPO (PCT)
Prior art keywords
screen
reverse
smart screen
television device
smart
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PCT/CN2020/125807
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English (en)
French (fr)
Inventor
李奇文
Original Assignee
深圳创维－Rgb电子有限公司
深圳市酷开网络科技有限公司
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Application filed by 深圳创维－Rgb电子有限公司, 深圳市酷开网络科技有限公司 filed Critical 深圳创维－Rgb电子有限公司
Priority to US17/915,068 priority Critical patent/US20230144936A1/en
Priority to EP20929087.3A priority patent/EP4114022A4/en
Publication of WO2021196600A1 publication Critical patent/WO2021196600A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/4104—Peripherals receiving signals from specially adapted client devices
    • H04N21/4126—The peripheral being portable, e.g. PDAs or mobile phones
    • H04N21/41265—The peripheral being portable, e.g. PDAs or mobile phones having a remote control device for bidirectional communication between the remote control device and client device
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
    • G06F3/1454—Digital output to display device ; Cooperation and interconnection of the display device with other functional units involving copying of the display data of a local workstation or window to a remote workstation or window so that an actual copy of the data is displayed simultaneously on two or more displays, e.g. teledisplay
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/4104—Peripherals receiving signals from specially adapted client devices
    • H04N21/4122—Peripherals receiving signals from specially adapted client devices additional display device, e.g. video projector
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
    • H04N21/43615—Interfacing a Home Network, e.g. for connecting the client to a plurality of peripherals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
    • H04N21/4363—Adapting the video stream to a specific local network, e.g. a Bluetooth® network
    • H04N21/43637—Adapting the video stream to a specific local network, e.g. a Bluetooth® network involving a wireless protocol, e.g. Bluetooth, RF or wireless LAN [IEEE 802.11]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
    • H04N21/4402—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display
    • H04N21/440218—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display by transcoding between formats or standards, e.g. from MPEG-2 to MPEG-4
    • 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
    • H04N21/442—Monitoring of processes or resources, e.g. detecting the failure of a recording device, monitoring the downstream bandwidth, the number of times a movie has been viewed, the storage space available from the internal hard disk
    • H04N21/44213—Monitoring of end-user related data
    • H04N21/44218—Detecting physical presence or behaviour of the user, e.g. using sensors to detect if the user is leaving the room or changes his face expression during a TV program
    • 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 
    • H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
    • H04N21/633—Control signals issued by server directed to the network components or client
    • H04N21/6332—Control signals issued by server directed to the network components or client directed to client
    • 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 
    • H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
    • H04N21/637—Control signals issued by the client directed to the server or network components
    • H04N21/6377—Control signals issued by the client directed to the server or network components directed to server
    • 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 
    • H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
    • H04N21/643—Communication protocols
    • H04N21/6437—Real-time Transport Protocol [RTP]

Definitions

  • This application relates to the technical field of smart screens, and specifically to a method, system, device, smart screen, and readable storage medium for reverse projection of a smart screen.
  • Existing television equipment such as a TV, receives a signal source through a high-definition interface and performs corresponding video playback.
  • the signal source is live broadcast in real time and cannot be paused. After the user leaves the TV set, the current content may be missed. Thereby affecting the user's viewing experience.
  • this application provides a smart screen reverse projection method, system, device, smart screen, and readable storage medium, so that users can continue to watch the display screen after leaving the TV device by using the smart screen
  • the video played on the Internet satisfies the user’s viewing needs and improves the user’s experience.
  • a smart screen reverse projection method including:
  • the television device and the smart screen are connected to a network cloud server, and the network cloud server manages the communication between the television device and the smart screen
  • the communication message, said "sending a reverse screen projection instruction to the television device" includes:
  • the method further includes:
  • the real-time video stream is received through the network cloud server.
  • the method further includes:
  • the "sending a reverse projection instruction to the television device" includes:
  • the reverse screen projection instruction is generated and sent to the television device.
  • the present application also provides a smart screen reverse projection device, which is applied to a smart screen, and the smart screen reverse projection device includes:
  • the network connection module is configured to connect to the TV device via a wireless network after the TV device is started;
  • the transmission module is configured to send a reverse screen projection instruction to the television device, and establish a reverse screen projection transmission link with the television device; receive the real-time video stream sent by the television device according to the transmission link, Real-time video stream is decoded and played.
  • the television device and the smart screen are connected to a network cloud server, and the communication messages between the television device and the smart screen are managed through the network cloud server, and the transmission module is configured to pass the following steps "Send reverse screen projection instruction to the television device”: Send the reverse screen projection instruction to the network cloud server, so that the network cloud server forwards the reverse screen projection instruction to the television device.
  • the transmission module is further configured to: when it is detected that the distance from the television device exceeds a first preset distance, and/or the transmission link with the television device is interrupted, through the network cloud
  • the server receives the real-time video stream.
  • the transmission module is further configured to: when it is detected that the distance to the television device is less than or equal to the first preset distance, and the transmission link is reconnected, from the network cloud server connection Switch to receiving the real-time video stream through the transmission link.
  • the transmission module is configured to "send a reverse screen projection instruction to the television device" through the following steps:
  • the reverse screen projection instruction is generated and sent to the television device.
  • the present application also provides a smart screen reverse projection method, which is applied to a television device, and the method includes:
  • the real-time video stream is sent to the smart screen for decoding and playback.
  • the television device and the smart screen are connected to a network cloud server, and the communication messages between the television device and the smart screen are managed through the network cloud server, and the television device passes through the network cloud
  • the server receives the reverse screen projection instruction sent by the smart screen.
  • the television device and the smart screen realize the transmission of the reverse screen projection instruction through a transmission link, and the method further includes:
  • the real-time video stream is sent through the network cloud server.
  • the method further includes:
  • the present application also provides a smart screen reverse projection device, which is applied to television equipment, and the smart screen reverse projection device includes:
  • the information transmission module is configured to connect to the smart screen via a wireless network
  • the information processing module is configured to collect the video stream played on the screen in real time after receiving the reverse projection instruction sent by the smart screen to obtain a real-time video stream, and send the real-time video stream to the smart screen for decoding Play.
  • This application also provides a smart screen reverse projection system, including a smart screen and a television device;
  • the television device and the smart screen are connected via a wireless network after being started;
  • the smart screen sends a reverse screen projection instruction to the television device via a wireless network, and establishes a reverse screen projection transmission link with the television device;
  • the television device After receiving the reverse screen projection instruction, the television device collects a real-time video stream, and sends the real-time video stream to the smart screen through the transmission link after being encoded;
  • the smart screen receives the real-time video stream through the transmission link, and performs decoding and playback.
  • the smart screen reverse projection system further includes a network cloud server
  • the network cloud server manages the communication message between the TV device and the smart screen, receives the reverse screen projection instruction of the smart screen, and forwards it to the TV device;
  • the television device detects that the distance from the smart screen exceeds a first preset distance, and/or the transmission link with the smart screen is interrupted, sending the real-time video stream to the network cloud server;
  • the smart screen When the smart screen detects that the distance from the television device exceeds the first preset distance, and/or the transmission link with the television device is interrupted, the smart screen receives the real-time video stream through the network cloud server .
  • the smart screen also generates when it detects that the distance to the television device exceeds a second preset distance, and/or detects that it leaves the preset area.
  • the reverse screen projection instruction is sent to the television device; or in response to a user triggering a reverse screen projection switch, the reverse screen projection instruction is generated and sent to the television device.
  • the present application also provides a smart screen, including a memory and a processor, the memory stores a computer program, and the processor runs the computer program to make the smart screen execute the smart screen reverse projection method.
  • the present application also provides a readable storage medium that stores a computer program that executes the smart screen reverse projection method when the computer program runs on a processor.
  • This application provides a smart screen reverse projection method, system, device, smart screen and readable storage medium.
  • the television device is connected via a wireless network; the reverse projection instruction is sent to the television device, and Establish a reverse projection transmission link with the television device; receive the real-time video stream sent by the television device according to the transmission link, and decode and play the real-time video stream.
  • the smart screen reverse projection solution of this application can reverse the video screen played on the display screen to the smart screen in real time, so that the user can continue to watch the video played on the display screen after leaving the TV device with the smart screen , To meet the user’s viewing needs and improve the user’s experience.
  • FIG. 1 is an exemplary flow chart of a method for reverse projection of a smart screen provided by an embodiment of the present application
  • FIG. 2 is another exemplary flowchart of a smart screen reverse projection method provided by an embodiment of the present application
  • FIG. 3 is another exemplary flowchart of a smart screen reverse projection method provided by an embodiment of the present application.
  • FIG. 4 is another exemplary flowchart of a smart screen reverse projection method provided by an embodiment of the present application.
  • FIG. 5 is a schematic structural diagram of a smart screen reverse projection system provided by an embodiment of the present application.
  • FIG. 6 is a schematic diagram of another structure of a smart screen reverse projection system provided by an embodiment of the present application.
  • Fig. 1 is an exemplary flow chart of a smart screen reverse projection method provided by an embodiment of the present application.
  • the method can be applied to a smart screen wirelessly connected to a TV device.
  • the method includes the following steps:
  • Step S11 After the television device is started, the television device is connected via a wireless network.
  • the television equipment includes a television set and various displays, which can be connected to a digital set-top box or other signal source for video playback.
  • the signal source is generally transmitted to the digital set-top box or the high-definition transmission interface of other signal transmitters.
  • Television equipment which is decoded by the television equipment for playback.
  • the TV device also has a smart screen via wireless connection.
  • the smart screen may be a portable display screen that is used to connect to various household appliances through a wireless network, to control the household appliances or receive status information of the household appliances through instructions, and to generate linkage with the household appliances through an application.
  • the TV device after the TV device is started, it can be connected to the smart screen via a wireless network.
  • the TV device can send a connection request message to the smart screen after being started, and the smart screen receives the connection request message After that, it can communicate wirelessly with the TV device through a wireless network.
  • the connection request information can be forwarded through the route of the TV device connection, or forwarded by the network cloud server that manages the communication message, which is not limited here.
  • Step S12 Send a reverse screen projection instruction to the television device, and establish a reverse screen projection transmission link with the television device.
  • the user can generate a reverse projection instruction on the smart screen to the television device by operating the smart screen, so that the television device can use the image acquisition module to collect the played video in real time after receiving the reverse projection instruction.
  • this signal source cannot be transmitted through the Internet, and when the user needs to watch it on a portable smart screen, he can send a reverse projection command To the TV device that is playing, such as a TV, the TV device can collect the video stream played on the screen in real time, so that it can be transmitted to the smart screen for playback.
  • the television device after receiving the reverse projection instruction, can establish a reverse projection transmission link with the smart screen.
  • the transmission link is only used to transmit the real-time video stream to ensure that the real-time video stream is not Will be interrupted, and to ensure that the delay is relatively small.
  • the above-mentioned process of establishing a reverse projection transmission link can be realized by using an application program.
  • an application program for establishing a transmission link is set up in a smart screen and a TV device, and an application program for establishing a transmission link is established through the application programs at both ends. The transmission link of the video stream.
  • Step S13 Receive the real-time video stream sent by the television device according to the transmission link, and decode and play the real-time video stream.
  • the smart screen will decode and play the real-time video stream after receiving the real-time video stream sent by the TV device using the transmission link, so as to realize the real-time reverse projection of the screen played in the TV device to the smart screen.
  • the picture in the smart screen is synchronized with the picture in the display screen. If there is a video playback progress in the TV device, the smart screen will also play the corresponding video at the current playback progress.
  • the screen played on the TV device can be reverse-projected to the smart screen in real time, so that the user can continue to watch the video played on the display after leaving the TV device with the smart screen, which improves the user experience Spend.
  • Fig. 2 is another flowchart of a smart screen reverse projection method provided by an embodiment of the present application, which includes the following steps:
  • Step S21 After the television device is started, connect to the television device via a wireless network.
  • Step S22 Send the reverse screen projection instruction to the network cloud server, so that the network cloud server forwards the reverse screen projection instruction to the television device, and establishes reverse screen projection with the television device Transmission link.
  • the television device and the smart screen may be connected to a network cloud server, and the communication messages between the television device and the smart screen are managed through the network cloud server. That is, the mutual transmission of various messages between the smart screen and the TV device can be uniformly managed through the network cloud server, so that when the smart screen is far from the TV device, direct communication cannot be achieved, or the two are in different routes When connecting, you can still interact with messages through the network cloud server.
  • the reverse screen projection command can also be sent by the smart screen to the network cloud server, and the network cloud server forwards the reverse screen projection command to the TV device.
  • the use of network cloud servers is conducive to smart screen providers to monitor service quality, so as to improve the communication between smart screens and TV equipment, thereby improving user experience.
  • Step S23 Receive the real-time video stream sent by the television device according to the transmission link, and decode and play the real-time video stream.
  • Step S24 When it is detected that the distance from the television device exceeds a first preset distance, and/or the transmission link with the television device is interrupted, receive the real-time video stream through the network cloud server.
  • a sensor for detecting the distance between the TV device and the smart screen may also be provided.
  • the smart screen detects that the distance to the TV device exceeds the first preset distance, or the transmission link is interrupted, or both When both of them happen, you can choose a network cloud server to establish a video stream connection with the TV device, so that the TV device can transmit the real-time video stream to the network cloud server through the wireless network, and then forward the network cloud server to the smart screen.
  • the above situation can be applied to the following scenarios, for example, when the user is watching a TV program through a TV device, suddenly there are other things that need to leave, but the TV program is a real-time program played by a set-top box and cannot be replayed later, so you can take it
  • the smart screen performs reverse projection. After the smart screen is carried far away from the TV device, in order to avoid communication interruption, the video stream is forwarded through the dedicated network cloud server at this time.
  • the TV device is also provided with a distance sensor, and when it detects that the first preset distance is exceeded, or the transmission link is interrupted, or both occur, the video stream is selected to be transmitted to the network cloud server.
  • Fig. 3 is another flowchart of a smart screen reverse projection method provided by an embodiment of the present application, which may further include the following steps:
  • Step S25 When it is detected that the distance to the television device is less than or equal to the first preset distance, and the transmission link is reconnected, switch from connecting with the network cloud server to receiving data through the transmission link. Describes real-time video streaming.
  • the process of forwarding the video stream through the network cloud server will cause a time delay in the playback of the video. Therefore, when the user returns to the TV device, When you are nearby or when the transmission link is reconnected, you can switch from the network cloud server forwarding mode back to using the transmission link mode, and reuse the transmission link for reverse projection of the real-time video stream to reduce playback delays.
  • Fig. 4 is another flowchart of a smart screen reverse projection method provided by the implementation of this application, which includes the following steps:
  • Step S41 After the television device is started, connect to the television device via a wireless network.
  • Step S42 When it is detected that the distance to the television device exceeds a second preset distance, and/or it is detected that it leaves the preset area, the reverse screen projection instruction is generated and sent to the television device, and is connected to the television device.
  • the television equipment establishes a reverse projection transmission link.
  • a distance detection sensor and an ultra-widescreen chip may be provided in the smart screen, and the distance to the TV device is detected by the distance detection sensor, and the ultra-widescreen chip is used to locate the indoor position of the smart screen and identify the TV The indoor location of the device.
  • the television device can also be provided with a distance detection sensor and an ultra-widescreen chip for detecting the distance to the smart screen and identifying the location of the smart screen.
  • the above steps can be applied to the scene when the user needs to go to other rooms from the current TV device location, but does not want to miss the real-time program played by the TV device.
  • the smart screen can be placed in a preset area near the TV device. When the user carries the smart screen When you leave the area, or when you are far away from the TV device, you can automatically trigger the reverse screen projection.
  • the reverse screen projection instruction in response to the user triggering the reverse screen projection switch, may be generated and sent to the television device.
  • the reverse screen projection switch may be a virtual switch set on the smart screen, and a reverse screen projection instruction is generated after the user touches the screen and sent to the television device.
  • Step S43 Receive the real-time video stream sent by the television device according to the transmission link, and decode and play the real-time video stream.
  • an embodiment of the present application further provides a smart screen reverse projection device, which is applied to a smart screen, and the smart screen reverse projection device includes: a network connection module and a transmission module.
  • the network connection module is configured to connect to the television device via a wireless network after the television device is started; the transmission module is configured to send a reverse screen projection instruction to the television device, and establish a reverse screen projection transmission link with the television device; receive the The television device decodes and plays the real-time video stream according to the real-time video stream sent by the transmission link.
  • the television device and the smart screen are connected to a network cloud server, and the communication messages between the television device and the smart screen are managed through the network cloud server, and the transmission module is configured to Through the following steps “send the reverse screen projection instruction to the television device”: send the reverse screen projection instruction to the network cloud server, so that the network cloud server forwards the reverse screen projection instruction to the TV equipment.
  • the transmission module is further configured to: when detecting that the distance from the television device exceeds a first preset distance, and/or the transmission link with the television device is interrupted, pass the The network cloud server receives the real-time video stream.
  • the transmission module is further configured to: when it is detected that the distance to the television device is less than or equal to the first preset distance, and the transmission link is reconnected, from the network The cloud server connection is switched to receive the real-time video stream through the transmission link.
  • the transmission module is configured to "send a reverse screen projection instruction to the television device" through the following steps: after detecting that the distance to the television device exceeds a second preset distance, and/or When detecting leaving the preset area, generate the reverse projection instruction and send it to the television device; or in response to the user triggering the reverse projection switch, generate the reverse projection instruction and send it to the television device .
  • the embodiment of the present application also provides a smart screen reverse projection method, which is applied to a TV device.
  • the method includes: connecting to the smart screen via a wireless network; after receiving a reverse projection instruction sent by the smart screen, real-time The video stream played on the screen is collected to obtain a real-time video stream; the real-time video stream is sent to the smart screen for decoding and playback.
  • the television device and the smart screen are connected to a network cloud server, and the communication messages between the television device and the smart screen are managed through the network cloud server, and the television device passes all the
  • the network cloud server receives the reverse screen projection instruction sent by the smart screen.
  • the television device and the smart screen implement the reverse screen projection instruction transmission through a transmission link
  • the method further includes: detecting that the distance from the smart screen exceeds a first preset When the distance and/or the transmission link with the smart screen is interrupted, the real-time video stream is sent through the network cloud server.
  • the method further includes: when it is detected that the distance to the smart screen is less than or equal to the first preset distance, and the transmission link is reconnected, from the network cloud server The connection is switched to sending the real-time video stream through the transmission link.
  • the embodiment of the present application also provides a smart screen reverse projection device, which is applied to television equipment, and the smart screen reverse projection device includes: an information transmission module and an information processing module.
  • the information transmission module is configured to connect to the smart screen via a wireless network; the information processing module is configured to collect the video stream played on the screen in real time after receiving the reverse projection instruction sent by the smart screen to obtain the real-time video stream, and transfer the The real-time video stream is sent to the smart screen for decoding and playback.
  • FIG. 5 is a schematic structural diagram of a smart screen reverse projection system provided in Embodiment 1 of the present application.
  • the smart screen reverse projection system 500 includes a smart screen 510 and a television device 520;
  • the television device 520 and the smart screen 510 are connected via a wireless network after being started;
  • the smart screen 510 sends a reverse screen projection instruction to the television device 520 via a wireless network, and establishes a reverse screen projection transmission link with the television device 520;
  • the television device 520 After receiving the reverse screen projection instruction, the television device 520 collects a real-time video stream, and sends the real-time video stream to the smart screen 510 through the transmission link after being encoded;
  • the smart screen 510 receives the real-time video stream through the transmission link, and performs decoding and playback.
  • the smart screen reverse projection system 500 may also include a network cloud server 530;
  • the network cloud server 530 manages the communication messages between the television device 520 and the smart screen 510, receives the reverse screen projection instruction of the smart screen 510 and forwards it to the television device 520;
  • the television device 520 When the television device 520 detects that the distance from the smart screen 510 exceeds a first preset distance, and/or the transmission link with the smart screen 510 is interrupted, the television device 520 sends the real-time video stream to the network Cloud server 530;
  • the smart screen 510 When the smart screen 510 detects that the distance from the television device 520 exceeds the first preset distance, and/or the transmission link with the television device 520 is interrupted, the smart screen 510 receives the data through the network cloud server 530 Describes real-time video streaming.
  • the smart screen 510 When the smart screen 510 also detects that the distance from the television device 520 exceeds a second preset distance, and/or detects that it leaves a preset area, the smart screen 510 generates the reverse screen projection instruction and sends it to the television device 520.
  • this application also provides a smart screen, which includes a memory and a processor, the memory can be used to store a computer program, and the processor runs the computer program so that the smart screen executes the above-mentioned method executed by the smart screen or The functions of each module included in the smart screen in the above system.
  • the memory may include a program storage area and a data storage area.
  • the program storage area may store an operating system, an application program required by at least one function (such as a sound playback function, an image playback function, etc.), etc.; Use the created data (such as audio data, phone book, etc.) and so on.
  • the memory may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, or other volatile solid-state storage devices.
  • This embodiment also provides a readable storage medium for storing the computer program used in the above-mentioned smart screen.
  • each block in the flowchart or block diagram may represent a module, program segment, or part of the code, and the module, program segment, or part of the code contains one or more functions for realizing the specified logical function.
  • Executable instructions may also occur in a different order from the order marked in the drawings.
  • each block in the structure diagram and/or flowchart, and the combination of the blocks in the structure diagram and/or flowchart can be used as a dedicated hardware-based system that performs the specified functions or actions. It can be implemented, or can be implemented by a combination of dedicated hardware and computer instructions.
  • the functional modules or units in the various embodiments of the present application may be integrated together to form an independent part, or each module may exist alone, or two or more modules may be integrated to form an independent part.
  • the function is implemented in the form of a software function module and sold or used as an independent product, it can be stored in a computer readable storage medium.
  • the technical solution of the present application essentially or the part that contributes to the existing technology or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which can be a smart phone, a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in the various embodiments of the present application.
  • the aforementioned storage media include: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disks or optical disks and other media that can store program codes. .
  • the smart screen reverse projection method, system, device, smart screen, and readable storage medium provided by the embodiments of the present application enable users to use the smart screen to continue watching the video played on the display screen after leaving the television device, so as to satisfy The user’s viewing needs improve the user’s experience.

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Abstract

本申请提供一种智慧屏反向投屏方法、系统、装置、智慧屏和可读存储介质，该智慧屏反向投屏方法包括：在电视设备启动后通过无线网络连接电视设备；发送反向投屏指令至所述电视设备，并与所述电视设备建立反向投屏传输链接；接收所述电视设备根据所述传输链接发送的实时视频流，对所述实时视频流进行解码播放。本申请的智慧屏反向投屏方法，可以将电视设备中播放的视频画面实时反向投屏至智慧屏，以便用户利用智慧屏可以在离开电视设备后仍能继续收看显示屏上播放的视频，提高用户的体验度。

Description

智慧屏反向投屏方法、系统、装置、智慧屏和可读存储介质
相关申请的交叉引用
本申请要求于2020年04月02日提交中国专利局的申请号为2020102560677、名称为“智慧屏反向投屏方法、系统、智慧屏和可读存储介质”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及智慧屏技术领域，具体而言，涉及一种智慧屏反向投屏方法、系统、装置、智慧屏和可读存储介质。
背景技术
现有的电视设备例如电视机，在通过高清接口接收信号源后进行相应的视频播放时，该信号源是实时直播的以及无法暂停的，在用户离开电视机后可能会错过当前播放的内容，从而影响用户的观看体验。
发明内容
鉴于上述问题之一，本申请提供了一种智慧屏反向投屏方法、系统、装置、智慧屏和可读存储介质，以使用户利用智慧屏可以在离开电视设备后仍能继续收看显示屏上播放的视频，满足用户的观看需求，提高用户的体验度。
为了至少部分地实现上述目的之一，本申请采用如下的技术方案：
一种智慧屏反向投屏方法，包括：
在电视设备启动后通过无线网络连接电视设备；
发送反向投屏指令至所述电视设备，并与所述电视设备建立反向投屏传输链接；
接收所述电视设备根据所述传输链接发送的实时视频流，对所述实时视频流进行解码播放。
可选地，所述的智慧屏反向投屏方法中，所述电视设备以及所述智慧屏连接至网络云端服务器，通过所述网络云端服务器管理所述电视设备以及所述智慧屏之间的通讯消息，所述“发送反向投屏指令至所述电视设备”包括：
发送所述反向投屏指令至所述网络云端服务器，以使所述网络云端服务器转发所述反向投屏指令至所述电视设备。
可选地，所述的智慧屏反向投屏方法中，所述方法还包括：
在检测到与所述电视设备的距离超过第一预设距离，和/或与所述电视设备的所述传输链接中断时，通过所述网络云端服务器接收所述实时视频流。
可选地，所述的智慧屏反向投屏方法中，所述方法还包括：
在检测到与所述电视设备的距离小于或等于所述第一预设距离，并且重新连接所述传输链接时，从与所述网络云端服务器连接切换至通过所述传输链接接收所述实时视频流。
可选地，所述的智慧屏反向投屏方法中，所述“发送反向投屏指令至所述电视设备”包括：
在检测到与所述电视设备的距离超过第二预设距离，和/或检测到离开预设区域时，生成所述反向投屏指令并发送至所述电视设备；
或响应于用户触发反向投屏开关，生成所述反向投屏指令并发送至所述电视设备。
本申请还提供一种智慧屏反向投屏装置，应用于智慧屏，所述智慧屏反向投屏装置包括：
网络连接模块，配置成在电视设备启动后通过无线网络连接电视设备；
传输模块，配置成发送反向投屏指令至所述电视设备，并与所述电视设备建立反向投屏传输链接；接收所述电视设备根据所述传输链接发送的实时视频流，对所述实时视频流进行解码播放。
可选地，所述电视设备以及所述智慧屏连接至网络云端服务器，通过所述网络云端服务器管理所述电视设备以及所述智慧屏之间的通讯消息，所述传输模块配置成通过以下步骤“发送反向投屏指令至所述电视设备”：发送所述反向投屏指令至所述网络云端服务器，以使所述网络云端服务器转发所述反向投屏指令至所述电视设备。
可选地，所述传输模块还配置成：在检测到与所述电视设备的距离超过第一预设距离，和/或与所述电视设备的所述传输链接中断时，通过所述网络云端服务器接收所述实时视频流。
可选地，所述传输模块还配置成：在检测到与所述电视设备的距离小于或等于所述第一预设距离，并且重新连接所述传输链接时，从与所述网络云端服务器连接切换至通过所述传输链接接收所述实时视频流。
可选地，所述传输模块配置成通过以下步骤“发送反向投屏指令至所述电视设备”：
在检测到与所述电视设备的距离超过第二预设距离，和/或检测到离开预设区域时，生成所述反向投屏指令并发送至所述电视设备；
或响应于用户触发反向投屏开关，生成所述反向投屏指令并发送至所述电视设备。
本申请还提供一种智慧屏反向投屏方法，应用于电视设备，所述方法包括：
通过无线网络连接智慧屏；
在接收到所述智慧屏发送的反向投屏指令后，实时采集画面上播放的视频流，得到实 时视频流；
将所述实时视频流发送至所述智慧屏进行解码播放。
可选地，所述电视设备以及所述智慧屏连接至网络云端服务器，通过所述网络云端服务器管理所述电视设备以及所述智慧屏之间的通讯消息，所述电视设备通过所述网络云端服务器接收所述智慧屏发送的反向投屏指令。
可选地，所述电视设备与所述智慧屏通过传输链接实现所述反向投屏指令传输，所述方法还包括：
在检测到与所述智慧屏的距离超过第一预设距离，和/或与所述智慧屏的所述传输链接中断时，通过所述网络云端服务器发送所述实时视频流。
可选地，所述方法还包括：
在检测到与所述智慧屏的距离小于或等于所述第一预设距离，并且重新连接所述传输链接时，从与所述网络云端服务器连接切换至通过所述传输链接发送所述实时视频流。
本申请还提供一种智慧屏反向投屏装置，应用于电视设备，所述智慧屏反向投屏装置包括：
信息传输模块，配置成通过无线网络连接智慧屏；
信息处理模块，配置成在接收到所述智慧屏发送的反向投屏指令后，实时采集画面上播放的视频流，得到实时视频流，将所述实时视频流发送至所述智慧屏进行解码播放。本申请还提供一种智慧屏反向投屏系统，包括智慧屏以及电视设备；
所述电视设备以及所述智慧屏在启动后通过无线网络连接；
所述智慧屏通过无线网络发送反向投屏指令至所述电视设备，并与所述电视设备建立反向投屏传输链接；
所述电视设备在接收所述反向投屏指令后，采集实时视频流，并将所述实时视频流经过编码后通过所述传输链接发送至所述智慧屏；
所述智慧屏通过所述传输链接接收所述实时视频流，进行解码播放。
可选地，所述的智慧屏反向投屏系统中，还包括网络云端服务器；
所述网络云端服务器管理所述电视设备以及所述智慧屏之间的通讯消息，接收所述智慧屏的所述反向投屏指令并转发至所述电视设备；
所述电视设备在检测到与所述智慧屏的距离超过第一预设距离，和/或与所述智慧屏的所述传输链接中断时，发送所述实时视频流至所述网络云端服务器；
所述智慧屏检测到与所述电视设备的距离超过所述第一预设距离，和/或与所述电视设备的所述传输链接中断时，通过所述网络云端服务器接收所述实时视频流。
可选地，所述的智慧屏反向投屏系统中，所述智慧屏还在检测到与所述电视设备的距离超过第二预设距离，和/或检测到离开预设区域时，生成所述反向投屏指令并发送至所述电视设备；或响应于用户触发反向投屏开关，生成所述反向投屏指令并发送至所述电视设备。
本申请还提供一种智慧屏，包括存储器以及处理器，所述存储器存储有计算机程序，所述处理器运行所述计算机程序以使所述智慧屏执行所述的智慧屏反向投屏方法。
本申请还提供一种可读存储介质，其存储有计算机程序，所述计算机程序在处理器上运行时执行所述的智慧屏反向投屏方法。
本申请提供一种智慧屏反向投屏方法、系统、装置、智慧屏和可读存储介质，在电视设备启动后通过无线网络连接电视设备；发送反向投屏指令至所述电视设备，并与所述电视设备建立反向投屏传输链接；接收所述电视设备根据所述传输链接发送的实时视频流，对所述实时视频流进行解码播放。本申请的智慧屏反向投屏方案，可以将显示屏中播放的视频画面实时反向投屏至智慧屏，以便用户利用智慧屏可以在离开电视设备后仍能继续收看显示屏上播放的视频，满足用户的观看需求，提高用户的体验度。
为使本申请的上述目的、特征和优点能更明显易懂，下文特举较佳实施例，并配合所附附图，作详细说明如下。
附图说明
为了更清楚地说明本申请的技术方案，下面将对实施例中所需要使用的附图作简单地介绍，应当理解，以下附图仅示出了本申请的某些实施例，因此不应被看作是对本申请保护范围的限定。在各个附图中，类似的构成部分采用类似的编号。
图1是本申请实施例提供的一种智慧屏反向投屏方法的示例性流程图；
图2是本申请实施例提供的一种智慧屏反向投屏方法的另一示例性流程图；
图3是本申请实施例提供的一种智慧屏反向投屏方法的另一示例性流程图；
图4是本申请实施例提供的一种智慧屏反向投屏方法的另一示例性流程图；
图5是本申请实施例提供的一种智慧屏反向投屏系统的结构示意图；
图6是本申请实施例提供的一种智慧屏反向投屏系统的另一结构示意图。
具体实施方式
下面将结合本申请实施例中附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本申请一部分实施例，而不是全部的实施例。
通常在此处附图中描述和示出的本申请实施例的组件可以以各种不同的配置来布置和设计。因此，以下对在附图中提供的本申请的实施例的详细描述并非旨在限制要求保护的 本申请的范围，而是仅仅表示本申请的选定实施例。基于本申请的实施例，本领域技术人员在没有做出创造性劳动的前提下所获得的所有其他实施例，都属于本申请保护的范围。
在下文中，可在本申请的各种实施例中使用的术语“包括”、“具有”及其同源词仅意在表示特定特征、数字、步骤、操作、元件、组件或前述项的组合，并且不应被理解为首先排除一个或更多个其它特征、数字、步骤、操作、元件、组件或前述项的组合的存在或增加一个或更多个特征、数字、步骤、操作、元件、组件或前述项的组合的可能性。
此外，术语“第一”、“第二”、“第三”等仅用于区分描述，而不能理解为指示或暗示相对重要性。
除非另有限定，否则在这里使用的所有术语(包括技术术语和科学术语)具有与本申请的各种实施例所属领域普通技术人员通常理解的含义相同的含义。所述术语(诸如在一般使用的词典中限定的术语)将被解释为具有与在相关技术领域中的语境含义相同的含义并且将不被解释为具有理想化的含义或过于正式的含义，除非在本申请的各种实施例中被清楚地限定。
图1是本申请实施例提供的一种智慧屏反向投屏方法的示例性流程图，该方法可以应用于无线连接有电视设备的智慧屏，方法包括如下步骤：
步骤S11：在电视设备启动后通过无线网络连接电视设备。
本申请实施例中，电视设备包括电视机以及各种显示器，可以连接至数字机顶盒或者其他信号源，进行视频的播放，其中，信号源一般是通过数字机顶盒或者其他信号发射端的高清传输接口传输至电视设备，由电视设备进行解码后进行播放。除此之外，该电视设备还通过无线连接有智慧屏。而智慧屏可以是一种便携式的显示屏，用于通过无线网络连接至各种家居电器，以通过指令控制家居电器或者接受家居电器的状态信息，以及通过应用程序与家居电器产生联动。
本申请实施例中，在电视设备启动后，可以通过无线网络连接至智慧屏，示例性地，该电视设备在启动后可以向智慧屏发送一个连接请求信息，该智慧屏在接收到连接请求信息后，可以通过无线网络与该电视设备进行无线通信。而该连接请求信息可以通过电视设备连接的路由进行转发，或者由管理通信消息的网络云端服务器来进行转发，这里不做限定。
步骤S12：发送反向投屏指令至所述电视设备，并与所述电视设备建立反向投屏传输链接。
本申请实施例中，用户可以通过操作智慧屏，在智慧屏上生成反向投屏指令至电视设备，以便电视设备在接收到该反向投屏指令后，利用图像采集模块实时采集播放的视频流。 尤其是一些非网络视频，例如数字电视机顶盒的信号源，这种信号源是无法通过互联网来进行传播的，而用户需要在便携的智慧屏上进行观看时，则可通过发送反向投屏指令至正在进行播放的电视设备，如电视机，该电视设备则可实时采集画面上播放的视频流，以便传输至智慧屏端进行播放。
本申请实施例中，电视设备在接收到反向投屏指令后，可以与智慧屏建立一个反向投屏的传输链接，该传输链接仅用于传输实时的视频流，以保证实时视频流不会中断，以及保证其延误比较小。其中，上述建立反向投屏传输链接的过程可以利用应用程序来实现，例如在智慧屏以及电视设备中都设置有用于建立传输链接的应用程序，通过两端的应用程序建立一条专门用于传输实时视频流的传输链接。
步骤S13：接收所述电视设备根据所述传输链接发送的实时视频流，对所述实时视频流进行解码播放。
本申请实施例中，智慧屏在接收电视设备利用传输链接发送的实时视频流后，将对实时视频流进行解码播放，以实现将电视设备中播放的画面实时反向投屏至智慧屏。其中，该智慧屏中的画面是与显示屏中的画面同步的，若电视设备中存在视频的播放进度时，该智慧屏也会在当前的播放进度进行相应视频的播放。通过本申请的上述步骤，可以将电视设备中播放的画面实时反向投屏至智慧屏，以便用户利用智慧屏可以在离开电视设备后仍能继续收看显示屏上播放的视频，提高用户的体验度。
图2是本申请实施例提供的一种智慧屏反向投屏方法的另一流程图，包括如下步骤：
步骤S21：在所述电视设备启动后，通过无线网络连接所述电视设备。
此步骤与上述步骤S11一致，在此不再赘述。
步骤S22：发送所述反向投屏指令至所述网络云端服务器，以使所述网络云端服务器转发所述反向投屏指令至所述电视设备，并与所述电视设备建立反向投屏传输链接。
本申请实施例中，所述电视设备以及所述智慧屏可以连接至网络云端服务器，通过所述网络云端服务器管理所述电视设备以及所述智慧屏之间的通讯消息。也即，可以通过网络云端服务器统一管理智慧屏与电视设备之间各种消息的相互传输，以便在智慧屏距离电视设备比较远的时候，无法做到直接的通信，或者两者处于不同的路由连接时，仍可以通过网络云端服务器进行消息的交互。而反向投屏指令同样也可由智慧屏发送至网络云端服务器，再由网络云端服务器将该反向投屏指令转发至电视设备。利用网络云端服务器有利于智慧屏的提供商监控服务质量，以便对智慧屏与电视设备之间的通信做出改进，从而提高用户的体验度。
步骤S23：接收所述电视设备根据所述传输链接发送的实时视频流，对所述实时视频流进行解码播放。
此步骤与上述步骤S13一致，在此不再赘述。
步骤S24：在检测到与所述电视设备的距离超过第一预设距离，和/或与所述电视设备的所述传输链接中断时，通过所述网络云端服务器接收所述实时视频流。
本申请实施例中，在电视设备与智慧屏中还可以设置有检测相互间距离的传感器，智慧屏在检测到与电视设备的距离超过第一预设距离时，或者传输链接中断时，或者两者都发生的情况下，可以选择网络云端服务器来建立与电视设备的视频流连接，以便电视设备通过无线网络将实时视频流传输至网络云端服务器，再由网络云端服务器转发至智慧屏。上述情况例如可以应用在如下场景中，如用户在通过电视设备观看电视节目时，突然有其它事情需要离开一下，但是电视节目是由机顶盒播放的实时节目，过后无法重播，这时就可以拿上智慧屏进行反向投屏，在携带智慧屏距离电视设备比较远后，为了避免通信上的中断，这时则通过专用网络云端服务器来进行视频流的转发。该电视设备中同样也设置有距离传感器，在检测到超过第一预设距离时，或者传输链接中断时，或者两者都发生的情况下，选择将视频流传输至网络云端服务器。
图3是本申请实施例提供的一种智慧屏反向投屏方法的另一流程图，还可以包括如下步骤：
步骤S25：在检测到与所述电视设备的距离小于或等于所述第一预设距离，并且重新连接所述传输链接时，从与所述网络云端服务器连接切换至通过所述传输链接接收所述实时视频流。
本申请实施例中，在用户携带智慧屏距离电视设备较远的时候，通过网络云端服务器进行视频流的转发过程会使视频的播放存在时间上的延误，因此，在用户重新回到电视设备的附近时，以及传输链接重新连接上时，则可从网络云端服务器转发的模式切换回利用传输链接模式，重新利用传输链接进行实时视频流的反向投屏，以降低播放的延误。
图4是本申请实施提供的一种智慧屏反向投屏方法的另一流程图，包括如下步骤：
步骤S41：在所述电视设备启动后，通过无线网络连接所述电视设备。
此步骤与上述步骤S11一致，在此不再赘述。
步骤S42：在检测到与所述电视设备的距离超过第二预设距离，和/或检测到离开预设区域时，生成所述反向投屏指令并发送至所述电视设备，并与所述电视设备建立反向投屏 传输链接。
本申请实施例中，在智慧屏中可以设置有距离检测传感器，以及超宽屏芯片，通过距离检测传感器检测与电视设备之间的距离，通过该超宽屏芯片以定位智慧屏的室内位置以及识别电视设备的室内位置。同样地，该电视设备中也可以设置有距离检测传感器以及超宽屏芯片，用于检测与智慧屏之间的距离以及识别智慧屏的位置。智慧屏在检测到智慧屏与电视设备的距离超过第二预设距离，或者检测到智慧屏离开预设区域后，或者两者同时满足时，则可生成所述反向投屏指令并发送至所述电视设备，以便进行反向投屏操作。上述步骤可以应用于用户需要从当前电视设备位置前往其他房间，而又不想错过电视设备播放的实时节目时的场景，该智慧屏可以放置在电视设备附近的预设区域中，当用户携带智慧屏离开该区域，或者距离电视设备较远时，则可自动触发反向投屏。
本申请实施例中，还可以响应于用户触发反向投屏开关，生成所述反向投屏指令并发送至所述电视设备。其中，该反向投屏开关可以是智慧屏上设置的虚拟开关，在用户触控后生成反向投屏指令并发送至电视设备。
步骤S43：接收所述电视设备根据所述传输链接发送的实时视频流，对所述实时视频流进行解码播放。
此步骤与上述步骤S13一致，在此不再赘述。
在上述基础上，本申请实施例还提供一种智慧屏反向投屏装置，应用于智慧屏，所述智慧屏反向投屏装置包括：网络连接模块和传输模块。
网络连接模块配置成在电视设备启动后通过无线网络连接电视设备；传输模块配置成发送反向投屏指令至所述电视设备，并与所述电视设备建立反向投屏传输链接；接收所述电视设备根据所述传输链接发送的实时视频流，对所述实时视频流进行解码播放。
在一种实现方式中，所述电视设备以及所述智慧屏连接至网络云端服务器，通过所述网络云端服务器管理所述电视设备以及所述智慧屏之间的通讯消息，所述传输模块配置成通过以下步骤“发送反向投屏指令至所述电视设备”：发送所述反向投屏指令至所述网络云端服务器，以使所述网络云端服务器转发所述反向投屏指令至所述电视设备。
在一种实现方式中，所述传输模块还配置成：在检测到与所述电视设备的距离超过第一预设距离，和/或与所述电视设备的所述传输链接中断时，通过所述网络云端服务器接收所述实时视频流。
在一种实现方式中，所述传输模块还配置成：在检测到与所述电视设备的距离小于或等于所述第一预设距离，并且重新连接所述传输链接时，从与所述网络云端服务器连接切换至通过所述传输链接接收所述实时视频流。
在一种实现方式中，所述传输模块配置成通过以下步骤“发送反向投屏指令至所述电视设备”：在检测到与所述电视设备的距离超过第二预设距离，和/或检测到离开预设区域时，生成所述反向投屏指令并发送至所述电视设备；或响应于用户触发反向投屏开关，生成所述反向投屏指令并发送至所述电视设备。
本申请实施例还提供一种智慧屏反向投屏方法，应用于电视设备，所述方法包括：通过无线网络连接智慧屏；在接收到所述智慧屏发送的反向投屏指令后，实时采集画面上播放的视频流，得到实时视频流；将所述实时视频流发送至所述智慧屏进行解码播放。
在一种实现方式中，所述电视设备以及所述智慧屏连接至网络云端服务器，通过所述网络云端服务器管理所述电视设备以及所述智慧屏之间的通讯消息，所述电视设备通过所述网络云端服务器接收所述智慧屏发送的反向投屏指令。
在一种实现方式中，所述电视设备与所述智慧屏通过传输链接实现所述反向投屏指令传输，所述方法还包括：在检测到与所述智慧屏的距离超过第一预设距离，和/或与所述智慧屏的所述传输链接中断时，通过所述网络云端服务器发送所述实时视频流。
在一种实现方式中，所述方法还包括：在检测到与所述智慧屏的距离小于或等于所述第一预设距离，并且重新连接所述传输链接时，从与所述网络云端服务器连接切换至通过所述传输链接发送所述实时视频流。
本申请实施例还提供一种智慧屏反向投屏装置，应用于电视设备，所述智慧屏反向投屏装置包括：信息传输模块和信息处理模块。
信息传输模块配置成通过无线网络连接智慧屏；信息处理模块配置成在接收到所述智慧屏发送的反向投屏指令后，实时采集画面上播放的视频流，得到实时视频流，将所述实时视频流发送至所述智慧屏进行解码播放。
图5是本申请实施例1提供的一种智慧屏反向投屏系统的结构示意图。
该智慧屏反向投屏系统500包括智慧屏510以及电视设备520；
所述电视设备520以及所述智慧屏510在启动后通过无线网络连接；
所述智慧屏510通过无线网络发送反向投屏指令至所述电视设备520，并与所述电视设备520建立反向投屏传输链接；
所述电视设备520在接收所述反向投屏指令后，采集实时视频流，并将所述实时视频流经过编码后通过所述传输链接发送至所述智慧屏510；
所述智慧屏510通过所述传输链接接收所述实时视频流，进行解码播放。
如图6所示，该智慧屏反向投屏系统500还可以包括网络云端服务器530；
所述网络云端服务器530管理所述电视设备520以及所述智慧屏510之间的通讯消息， 接收所述智慧屏510的所述反向投屏指令并转发至所述电视设备520；
所述电视设备520在检测到与所述智慧屏510的距离超过第一预设距离，和/或与所述智慧屏510的所述传输链接中断时，发送所述实时视频流至所述网络云端服务器530；
所述智慧屏510检测到与所述电视设备520的距离超过所述第一预设距离，和/或与所述电视设备520的所述传输链接中断时，通过所述网络云端服务器530接收所述实时视频流。
所述智慧屏510还在检测到与所述电视设备520的距离超过第二预设距离，和/或检测到离开预设区域时，生成所述反向投屏指令并发送至所述电视设备520。
本申请实施例中，上述各个设备之间更加详细的功能描述可以参考前述实施例中相应部分的内容，在此不再赘述。
此外，本申请还提供了一种智慧屏，该智慧屏包括存储器和处理器，存储器可用于存储计算机程序，处理器通过运行所述计算机程序，从而使智慧屏执行上述由智慧屏执行的方法或者上述系统中的智慧屏包括的各个模块的功能。
存储器可包括存储程序区和存储数据区，其中，存储程序区可存储操作系统、至少一个功能所需的应用程序(比如声音播放功能、图像播放功能等)等；存储数据区可存储根据智慧屏的使用所创建的数据(比如音频数据、电话本等)等。此外，存储器可以包括高速随机存取存储器，还可以包括非易失性存储器，例如至少一个磁盘存储器件、闪存器件、或其他易失性固态存储器件。
本实施例还提供了一种可读存储介质，用于储存上述智慧屏中使用的计算机程序。
在本申请所提供的几个实施例中，应该理解到，所揭露的装置和方法，也可以通过其它的方式实现。以上所描述的装置实施例仅仅是示意性的，例如，附图中的流程图和结构图显示了根据本申请的多个实施例的装置、方法和计算机程序产品的可能实现的体系架构、功能和操作。在这点上，流程图或框图中的每个方框可以代表一个模块、程序段或代码的一部分，所述模块、程序段或代码的一部分包含一个或多个用于实现规定的逻辑功能的可执行指令。也应当注意，在作为替换的实现方式中，方框中所标注的功能也可以以不同于附图中所标注的顺序发生。例如，两个连续的方框实际上可以基本并行地执行，它们有时也可以按相反的顺序执行，这依所涉及的功能而定。也要注意的是，结构图和/或流程图中的每个方框、以及结构图和/或流程图中的方框的组合，可以用执行规定的功能或动作的专用的基于硬件的系统来实现，或者可以用专用硬件与计算机指令的组合来实现。
另外，在本申请各个实施例中的各功能模块或单元可以集成在一起形成一个独立的部分，也可以是各个模块单独存在，也可以两个或更多个模块集成形成一个独立的部分。
所述功能如果以软件功能模块的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是智能手机、个人计算机、服务器、或者网络设备等)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(ROM，Read-Only Memory)、随机存取存储器(RAM，Random Access Memory)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应所述以权利要求的保护范围为准。
工业实用性
本申请实施例提供的智慧屏反向投屏方法、系统、装置、智慧屏和可读存储介质，使得用户利用智慧屏可以在离开电视设备后仍能继续收看显示屏上播放的视频，以满足用户的观看需求，提高用户的体验度。

Claims (20)

  1. 一种智慧屏反向投屏方法，其特征在于，包括：
    在电视设备启动后通过无线网络连接电视设备；
    发送反向投屏指令至所述电视设备，并与所述电视设备建立反向投屏传输链接；
    接收所述电视设备根据所述传输链接发送的实时视频流，对所述实时视频流进行解码播放。
  2. 根据权利要求1所述的智慧屏反向投屏方法，其特征在于，所述电视设备以及所述智慧屏连接至网络云端服务器，通过所述网络云端服务器管理所述电视设备以及所述智慧屏之间的通讯消息，所述“发送反向投屏指令至所述电视设备”包括：
    发送所述反向投屏指令至所述网络云端服务器，以使所述网络云端服务器转发所述反向投屏指令至所述电视设备。
  3. 根据权利要求2所述的智慧屏反向投屏方法，其特征在于，所述方法还包括：
    在检测到与所述电视设备的距离超过第一预设距离，和/或与所述电视设备的所述传输链接中断时，通过所述网络云端服务器接收所述实时视频流。
  4. 根据权利要求3所述的智慧屏反向投屏方法，其特征在于，所述方法还包括：
    在检测到与所述电视设备的距离小于或等于所述第一预设距离，并且重新连接所述传输链接时，从与所述网络云端服务器连接切换至通过所述传输链接接收所述实时视频流。
  5. 根据权利要求1至4任意一项所述的智慧屏反向投屏方法，其特征在于，所述“发送反向投屏指令至所述电视设备”包括：
    在检测到与所述电视设备的距离超过第二预设距离，和/或检测到离开预设区域时，生成所述反向投屏指令并发送至所述电视设备；
    或响应于用户触发反向投屏开关，生成所述反向投屏指令并发送至所述电视设备。
  6. 一种智慧屏反向投屏装置，其特征在于，应用于智慧屏，所述智慧屏反向投屏装置包括：
    网络连接模块，配置成在电视设备启动后通过无线网络连接电视设备；
    传输模块，配置成发送反向投屏指令至所述电视设备，并与所述电视设备建立反向投屏传输链接；接收所述电视设备根据所述传输链接发送的实时视频流，对所述实时视频流进行解码播放。
  7. 根据权利要求6所述的智慧屏反向投屏装置，其特征在于，所述电视设备以及所述智慧屏连接至网络云端服务器，通过所述网络云端服务器管理所述电视设备以及所述智慧 屏之间的通讯消息，所述传输模块配置成通过以下步骤“发送反向投屏指令至所述电视设备”：发送所述反向投屏指令至所述网络云端服务器，以使所述网络云端服务器转发所述反向投屏指令至所述电视设备。
  8. 根据权利要求7所述的智慧屏反向投屏装置，其特征在于，所述传输模块还配置成：在检测到与所述电视设备的距离超过第一预设距离，和/或与所述电视设备的所述传输链接中断时，通过所述网络云端服务器接收所述实时视频流。
  9. 根据权利要求8所述的智慧屏反向投屏装置，其特征在于，所述传输模块还配置成：在检测到与所述电视设备的距离小于或等于所述第一预设距离，并且重新连接所述传输链接时，从与所述网络云端服务器连接切换至通过所述传输链接接收所述实时视频流。
  10. 根据权利要求6至9任意一项所述的智慧屏反向投屏装置，其特征在于，所述传输模块配置成通过以下步骤“发送反向投屏指令至所述电视设备”：
    在检测到与所述电视设备的距离超过第二预设距离，和/或检测到离开预设区域时，生成所述反向投屏指令并发送至所述电视设备；
    或响应于用户触发反向投屏开关，生成所述反向投屏指令并发送至所述电视设备。
  11. 一种智慧屏反向投屏方法，其特征在于，应用于电视设备，所述方法包括：
    通过无线网络连接智慧屏；
    在接收到所述智慧屏发送的反向投屏指令后，实时采集画面上播放的视频流，得到实时视频流；
    将所述实时视频流发送至所述智慧屏进行解码播放。
  12. 根据权利要求11所述的智慧屏反向投屏方法，其特征在于，所述电视设备以及所述智慧屏连接至网络云端服务器，通过所述网络云端服务器管理所述电视设备以及所述智慧屏之间的通讯消息，所述电视设备通过所述网络云端服务器接收所述智慧屏发送的反向投屏指令。
  13. 根据权利要求12所述的智慧屏反向投屏方法，其特征在于，所述电视设备与所述智慧屏通过传输链接实现所述反向投屏指令传输，所述方法还包括：
    在检测到与所述智慧屏的距离超过第一预设距离，和/或与所述智慧屏的所述传输链接中断时，通过所述网络云端服务器发送所述实时视频流。
  14. 根据权利要求13所述的智慧屏反向投屏方法，其特征在于，所述方法还包括：
    在检测到与所述智慧屏的距离小于或等于所述第一预设距离，并且重新连接所述传输链接时，从与所述网络云端服务器连接切换至通过所述传输链接发送所述实时视频流。
  15. 一种智慧屏反向投屏装置，其特征在于，应用于电视设备，所述智慧屏反向投屏装 置包括：
    信息传输模块，配置成通过无线网络连接智慧屏；
    信息处理模块，配置成在接收到所述智慧屏发送的反向投屏指令后，实时采集画面上播放的视频流，得到实时视频流，将所述实时视频流发送至所述智慧屏进行解码播放。
  16. 一种智慧屏反向投屏系统，其特征在于，包括智慧屏以及电视设备；
    所述电视设备以及所述智慧屏在启动后通过无线网络连接；
    所述智慧屏通过无线网络发送反向投屏指令至所述电视设备，并与所述电视设备建立反向投屏传输链接；
    所述电视设备在接收所述反向投屏指令后，采集实时视频流，并将所述实时视频流经过编码后通过所述传输链接发送至所述智慧屏；
    所述智慧屏通过所述传输链接接收所述实时视频流，进行解码播放。
  17. 根据权利要求16所述的智慧屏反向投屏系统，其特征在于，所述智慧屏反向投屏系统还包括网络云端服务器；
    所述网络云端服务器管理所述电视设备以及所述智慧屏之间的通讯消息，接收所述智慧屏的所述反向投屏指令并转发至所述电视设备；
    所述电视设备在检测到与所述智慧屏的距离超过第一预设距离，和/或与所述智慧屏的所述传输链接中断时，发送所述实时视频流至所述网络云端服务器；
    所述智慧屏检测到与所述电视设备的距离超过所述第一预设距离，和/或与所述电视设备的所述传输链接中断时，通过所述网络云端服务器接收所述实时视频流。
  18. 根据权利要求16或17所述的智慧屏反向投屏系统，其特征在于，所述智慧屏还在检测到与所述电视设备的距离超过第二预设距离，和/或检测到离开预设区域时，生成所述反向投屏指令并发送至所述电视设备；或响应于用户触发反向投屏开关，生成所述反向投屏指令并发送至所述电视设备。
  19. 一种智慧屏，其特征在于，包括存储器以及处理器，所述存储器存储有计算机程序，所述处理器运行所述计算机程序以使所述智慧屏执行根据权利要求1至5中任一项所述的智慧屏反向投屏方法。
  20. 一种可读存储介质，其特征在于，其存储有计算机程序，所述计算机程序在处理器上运行时执行权利要求1至5中任一项所述的智慧屏反向投屏方法。
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