CN110389738B - Screen projection method, device, terminal and storage medium - Google Patents

Screen projection method, device, terminal and storage medium Download PDF

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Publication number
CN110389738B
CN110389738B CN201910570014.XA CN201910570014A CN110389738B CN 110389738 B CN110389738 B CN 110389738B CN 201910570014 A CN201910570014 A CN 201910570014A CN 110389738 B CN110389738 B CN 110389738B
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terminal
identification information
screen projection
screen
sending
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CN110389738A (en
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廖一晶
刘鸣
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Beijing Xiaomi Mobile Software Co Ltd
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Beijing Xiaomi Mobile Software Co Ltd
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    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/11—Allocation or use of connection identifiers

Abstract

The invention discloses a screen projection method, a screen projection device and a storage medium. The method comprises the following steps: carrying out an interactive process of first screen projection on a first terminal at a second terminal, and receiving first identification information sent by the first terminal; wherein the first identification information uniquely identifies the first terminal; saving first identification information of the first terminal; in the non-initial screen projection process, second identification information is obtained from any connected terminal, wherein the second identification information uniquely identifies one terminal; and when the second identification information is the same as the stored first identification information, sending the screen projection content of the second terminal to the first terminal. The invention also discloses a screen projection device, a terminal and a storage medium.

Description

Screen projection method, device, terminal and storage medium
Technical Field
The invention relates to the technical field of multimedia data processing, in particular to a screen projection method, a screen projection device, a screen projection terminal and a storage medium.
Background
The screen projection mainly refers to transmitting display contents of screen projection terminal equipment such as a terminal to screen projection terminal equipment with a large screen such as a television or a projector for display. The common protocols mainly relied on when the device of the android operating system is used for screen projection are Digital Living Network Alliance (DLNA) and wireless display sharing (Miracast); a common protocol that is relied upon when projecting screens using iOS equipment is AirPlay (AirPlay).
The DLNA protocol has been stopped maintaining in 2017, and the basic protocol in Miracast protocol is inconvenient to use. Meanwhile, the coverage rate of the smart television is improved year by year, the screen projection requirement is continuously increased, and protocols such as DLNA cannot well meet the gradually abundant user scenes.
Disclosure of Invention
The invention provides a screen projection method, a screen projection device, a terminal and a storage medium.
According to a first aspect of embodiments of the present invention, there is provided a screen projection method, the method comprising:
carrying out an interactive process of first screen projection on a first terminal at a second terminal, and receiving first identification information sent by the first terminal; wherein the first identification information uniquely identifies the first terminal;
saving first identification information of the first terminal;
in the non-initial screen projection process, second identification information is obtained from any connected terminal, wherein the second identification information uniquely identifies one terminal;
and when the second identification information is the same as the stored first identification information, sending the screen projection content of the second terminal to the first terminal.
In one embodiment, the obtaining the second identification information from any connected terminal includes:
acquiring second identification information from any connected terminal on an operating system layer;
sending the screen projection content of the second terminal to the first terminal, including:
and sending the screen projection content of the second terminal to the first terminal at an operating system layer.
In one embodiment, the second identification information is obtained from any terminal connected thereto, including,
acquiring the second identification information from the arbitrary terminal through Bluetooth connection;
and/or the presence of a gas in the atmosphere,
acquiring the second identification information from the arbitrary terminal through local area network connection;
and/or the presence of a gas in the gas,
and acquiring the second identification information of a first preset position of a first preset server preset in a wide area network by the arbitrary terminal.
In one embodiment, the saving the first identification information of the first terminal includes:
and storing the first identification information of the first terminal at a second preset position of a second preset server.
In one embodiment, the sending the screen-projected content of the second terminal to the first terminal when the second identification information is the same as the stored first identification information comprises:
and when the second identification information is the same as the stored first identification information and the second identification information is the only acquired identification information, sending screen projection content of the second terminal to the first terminal.
In one embodiment, the sending the screen-shot content of the second terminal to the first terminal includes,
and sending the screen-casting content of the second terminal to the first terminal in an indirect or direct mode.
In one embodiment, the first terminal is a television terminal.
According to a second aspect of embodiments of the present invention, there is provided a method of projecting a screen, the method comprising:
presetting third identification information in a third terminal; wherein the third identification information uniquely identifies the third terminal;
carrying out an interactive process of first screen projection from a fourth terminal to a third terminal, sending the third identification information to the fourth terminal, and storing the third identification information by the fourth terminal;
the stored third identification information is used for comparing a fourth identification information obtained from any connected terminal with a fourth identification information in a non-first screen projection process of a fourth terminal, and when the fourth identification information is the same as the stored third identification information, screen projection content of the fourth terminal is sent to the third terminal; the fourth identification information uniquely identifies one terminal.
In an embodiment, the presetting of the third identification information in the third terminal includes:
and setting the third identification information in a screen projection application of a third terminal.
In one embodiment, the method further comprises:
and setting the third identification information at a third preset position of a third preset server.
In one embodiment, the sending the screen-shot content of the fourth terminal to the third terminal when the fourth identification information is the same as the saved third identification information includes:
and when the fourth identification information is the same as the stored third identification information and is the identification information uniquely received by the fourth terminal, sending the screen projection content of the fourth terminal to the third terminal.
In one embodiment, the third terminal is a television terminal.
According to a third aspect of embodiments of the present invention, there is provided a screen projection apparatus, the apparatus comprising: a receiving module, a storage module, an acquisition module and a first sending module, wherein,
the receiving module is used for receiving first identification information sent by the first terminal in an interactive process of first screen projection from the second terminal to the first terminal; wherein the first identification information uniquely identifies the first terminal;
the storage module is used for storing first identification information of the first terminal;
the acquisition module is used for acquiring second identification information from any connected terminal in a non-initial screen projection process, wherein the second identification information uniquely identifies one terminal;
and the sending module is used for sending the screen projection content of the second terminal to the first terminal when the second identification information is the same as the stored first identification information.
In one embodiment, the obtaining module includes:
the first obtaining submodule is used for obtaining second identification information from any connected terminal on an operating system layer;
the first sending module includes:
and the first sending submodule is used for sending the screen throwing content of the second terminal to the first terminal on an operating system layer.
In one embodiment, the obtaining module includes:
the second acquisition submodule is used for acquiring the second identification information from the arbitrary terminal through Bluetooth connection;
and/or the presence of a gas in the gas,
acquiring the second identification information from the arbitrary terminal through local area network connection;
and/or the presence of a gas in the gas,
and acquiring the second identification information of a first preset position of a first preset server preset in a wide area network by the arbitrary terminal.
In one embodiment, the storage module includes:
and the first storage submodule is used for storing the first identification information of the first terminal at a second preset position of a second preset server.
In one embodiment, the first sending module includes: and the second sending submodule is used for sending the screen projection content of the second terminal to the first terminal when the second identification information is the same as the stored first identification information and the second identification information is the only acquired identification information.
In one embodiment, the first sending module includes:
and the third sending submodule is used for sending the screen projection content of the second terminal to the first terminal in an indirect or direct mode.
In one embodiment, the first terminal is a television terminal.
According to a fourth aspect of embodiments of the present invention, there is provided a screen projection apparatus, the apparatus comprising: a first setting module and a second sending module, wherein,
the first setting module is used for presetting third identification information in a third terminal; wherein the third identification information uniquely identifies the third terminal;
the second sending module is used for sending the third identification information to the fourth terminal in an interactive process of first screen projection from the fourth terminal to the third terminal, and storing the third identification information by the fourth terminal;
the stored third identification information is used for comparing a fourth identification information obtained from any connected terminal with a fourth identification information in a non-first screen projection process of a fourth terminal, and when the fourth identification information is the same as the stored third identification information, screen projection content of the fourth terminal is sent to the third terminal; the fourth identification information uniquely identifies one terminal.
In one embodiment, the first setup module includes:
and the first setting submodule is used for setting the third identification information in the screen projection application of the third terminal.
In one embodiment, the apparatus further comprises:
and the second setting module is used for setting third identification information at a third preset position of a third preset server.
In an embodiment, the stored third identification information is specifically configured to: the fourth terminal compares fourth identification information acquired from any connected terminal in a non-first screen projection process, and when the fourth identification information is the same as the stored third identification information and is identification information uniquely received by the fourth terminal, screen projection content of the fourth terminal is sent to the third terminal; the fourth identification information uniquely identifies one terminal.
In one embodiment, the third terminal is a television terminal.
According to a fifth aspect of the embodiments of the present invention, there is provided a screen projection terminal, including: the screen projection method comprises a processor, a transceiver, a memory and an executable program stored on the memory and capable of being executed by the processor, wherein the steps of the screen projection method of the first aspect or the second aspect are executed when the executable program is executed by the processor.
According to a sixth aspect of the embodiments of the present invention, there is provided a storage medium on which an executable program is stored, wherein the executable program when executed by a processor implements the steps of the screen projection method of the first aspect or the second aspect
According to the screen projection method, the screen projection device and the storage medium provided by the embodiment of the invention, the interactive process of screen projection for the first time is carried out from the second terminal to the first terminal, and the first identification information sent by the first terminal is received; wherein the first identification information uniquely identifies the first terminal; storing first identification information of the first terminal; in the non-initial screen projection process, second identification information is obtained from any connected terminal, wherein the second identification information uniquely identifies one terminal; and when the second identification information is the same as the stored first identification information, sending the screen projection content of the second terminal to the first terminal. In such a way, the second terminal identifies the screen-projected terminal capable of projecting the screen in the subsequent screen projection according to the unique first identification information of the first terminal stored through the first screen projection, and projects the screen; the screen projection terminal does not need to be manually selected by a user, so that the screen projection operation is simpler and more convenient, and the user experience is improved.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
Fig. 1 is a block diagram illustrating a wireless communication system in accordance with an exemplary embodiment;
FIG. 2 is a flow diagram illustrating a method of screen projection in accordance with an exemplary embodiment;
FIG. 3 is a schematic flow chart diagram illustrating another method of screen projection according to an exemplary embodiment;
FIG. 4 is a schematic diagram of a component structure of a projection device according to an exemplary embodiment;
FIG. 5 is a schematic diagram illustrating the components of another screen projection device according to an exemplary embodiment;
FIG. 6 is a schematic diagram illustrating the components of yet another screen projection device according to an exemplary embodiment;
FIG. 7 is a schematic diagram of another exemplary configuration of a screen projection device according to an exemplary embodiment;
FIG. 8 is a schematic diagram illustrating a further exemplary configuration of a projection device according to an exemplary embodiment;
FIG. 9 is a schematic diagram illustrating the components of yet another exemplary projection device in accordance with one exemplary embodiment;
FIG. 10 is a schematic diagram illustrating the components of a screen projection device according to an exemplary embodiment;
FIG. 11 is a schematic diagram illustrating the components of another exemplary projection device in accordance with one exemplary embodiment;
FIG. 12 is a schematic diagram illustrating the components of yet another exemplary projection device in accordance with one exemplary embodiment;
FIG. 13 is a block diagram illustrating an apparatus for projecting a screen according to an example embodiment.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. The following description refers to the accompanying drawings in which the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with embodiments of the invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of embodiments of the invention, as detailed in the following claims.
The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the embodiments of the invention. As used in the description of the invention and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
It should be understood that although the terms first, second, third, etc. may be used to describe various information in embodiments of the present invention, the information should not be limited by these terms. These terms are only used to distinguish one type of information from another. For example, the first information may also be referred to as second information, and similarly, the second information may also be referred to as first information, without departing from the scope of embodiments of the present invention. The word "if" as used herein may be interpreted as "at" \8230; "or" when 8230; \8230; "or" in response to a determination ", depending on the context.
Referring to fig. 1, a schematic structural diagram of a wireless communication system according to an embodiment of the present invention is shown. As shown in fig. 1, the wireless communication system is a communication system based on a cellular mobile communication technology, and may include: several terminals 11 and several base stations 12.
Terminal 11 may refer, among other things, to a device providing voice and/or data connectivity to a user. The terminal 11 may communicate with one or more core networks via a Radio Access Network (RAN), and the terminal 11 may be an internet of things terminal, such as a sensor device, a mobile phone (or called "cellular" phone), and a computer having the internet of things terminal, and may be a fixed, portable, pocket, handheld, computer-embedded, or vehicle-mounted device, for example. For example, a Station (STA), a subscriber unit (subscriber unit), a subscriber Station (subscriber Station), a mobile Station (mobile), a remote Station (remote Station), an access point (ap), a remote terminal (remote terminal), an access terminal (access terminal), a user equipment (user terminal), a user agent (user agent), a user equipment (user device), or a user terminal (UE). Alternatively, the terminal 11 may be a device of an unmanned aerial vehicle. Alternatively, the terminal 11 may also be a vehicle-mounted device, for example, a vehicle computer with a wireless communication function, or a wireless communication device externally connected to the vehicle computer. Alternatively, the terminal 11 may be a roadside device, for example, a street lamp, a signal lamp or other roadside device having a wireless communication function.
The base station 12 may be a network side device in a wireless communication system. Wherein, the wireless communication system may be the fourth generation mobile communication technology (4 g) system, which is also called Long Term Evolution (LTE) system; alternatively, the wireless communication system may also be a 5G system, which is also called a New Radio (NR) system or a 5G NR system. Alternatively, the wireless communication system may be a next generation system of a 5G system. Among them, the Access Network in the 5G system may be referred to as NG-RAN (New Generation-Radio Access Network, new Generation Radio Access Network). Alternatively, an MTC system.
The base station 12 may be an evolved node b (eNB) used in a 4G system. Alternatively, the base station 12 may be a base station (gNB) adopting a centralized distributed architecture in the 5G system. When the base station 12 adopts a centralized distribution architecture, it generally includes a Centralized Unit (CU) and at least two Distributed Units (DU). A Packet Data Convergence Protocol (PDCP) layer, a Radio Link layer Control Protocol (RLC) layer, and a Media Access Control (MAC) layer are provided in the central unit; a Physical (PHY) layer protocol stack is disposed in the distribution unit, and the embodiment of the present invention does not limit the specific implementation manner of the base station 12.
The base station 12 and the terminal 11 may establish a wireless connection over a wireless air interface. In various embodiments, the wireless air interface is based on fourth generation mobile communication network technology (4G) standard; or the wireless air interface is a wireless air interface based on a fifth generation mobile communication network technology (5G) standard, for example, the wireless air interface is a new air interface; alternatively, the wireless air interface may be a wireless air interface based on a 5G technology standard of a next generation mobile communication network.
In some embodiments, an E2E (End to End) connection may also be established between the terminals 11. For example, in a vehicle to vehicle communication (V2X), a vehicle to roadside device (V2I) communication, a vehicle to road device (V2P) communication, and the like.
In some embodiments, the wireless communication system may further include a network management device 13.
Several base stations 12 are connected to a network management device 13, respectively. The network Management device 13 may be a Core network device in a wireless communication system, for example, the network Management device 13 may be a Mobility Management Entity (MME) in an Evolved Packet Core (EPC). Alternatively, the Network management device may also be other core Network devices, such as a Serving GateWay (SGW), a Public Data Network GateWay (PGW), a Policy and Charging Rules Function (PCRF), a Home Subscriber Server (HSS), or the like. The implementation form of the network management device 13 is not limited in the embodiment of the present invention.
The execution subject related to the embodiment of the invention includes but is not limited to: and (4) a terminal.
Fig. 2 is a flowchart illustrating a screen projection method according to an exemplary embodiment, where the screen projection method is used in a screen projection terminal device as shown in fig. 2, and includes the following steps:
step 201: performing an interactive process of first screen projection on a first terminal at a second terminal, and receiving first identification information sent by the first terminal; wherein the first identification information uniquely identifies the first terminal;
step 202: storing first identification information of the first terminal;
step 203: in the non-initial screen projection process, second identification information is obtained from any connected terminal, wherein the second identification information uniquely identifies one terminal;
step 204: and when the second identification information is the same as the stored first identification information, sending the screen projection content of the second terminal to the first terminal.
Here, the first terminal may be a television, a projection, or the like projected terminal. The second terminal can be a screen projection terminal such as a mobile phone;
unique identification information, such as user identification information (UID), can be set for each screen-thrown terminal; the identification information may be self-defined non-repetitive information, or some identification information inherent to the screen-projected terminal itself may be used as the identification information, for example, a Media Access Control (MAC) address of a network adapter of the screen-projected terminal itself is used as the identification information of the screen-projected terminal, and since the MAC address has uniqueness, the identification information also has uniqueness to the screen-projected terminal.
The identification information can be broadcasted through a DLNA protocol and the like in the screen projection interaction process, so that the identification information can be acquired by the screen projection terminal. The broadcast may be via bluetooth, lan, etc.
The first identification information may be set in a screen-casting application of the first terminal, and in an interactive process of a first screen casting to the first terminal by the second terminal, the first terminal sends the first identification information to the second terminal through the screen-casting application. The second terminal stores the first identification information sent by the first terminal, and therefore the first terminal is determined to be a screen-projected terminal capable of projecting a screen. The first identification information may be stored in a preset storage location of the second terminal.
And in the subsequent non-initial screen projection process, the second terminal starts a screen projection function and searches the identification information of the terminal equipment capable of projecting the screen. Because the first identification information and the second identification information have uniqueness to the screen-projected terminal, if the searched second identification information is the same as the stored first identification information, the second identification information and the first identification information belong to the same screen-projected terminal, namely the first terminal. The second terminal can send the screen projection content to the first terminal for screen projection. It is no longer necessary to manually select the terminal being screened.
The second terminal identifies a screen-projected terminal capable of projecting the screen according to the unique first identification information of the first terminal stored through the first screen projection in the subsequent screen projection and projects the screen; the screen-cast terminal selection error condition caused by the repeated equipment name of the screen-cast terminal is reduced; the screen projection terminal does not need to be manually selected by a user, so that the screen projection operation is simpler and more convenient, and the user experience is improved.
In one embodiment, the obtaining the second identification information from any connected terminal includes: acquiring second identification information from any connected terminal at an operating system layer; sending the screen projection content of the second terminal to the first terminal, including: and sending the screen projection content of the second terminal to the first terminal at an operating system layer.
Here, the screen projection of the second terminal on the Application (APP) level is usually limited greatly, for example, the screen locking of the system, closing of the APP in the background, and the like all cause screen projection to be abnormal. The program code for screen projection, the DLNA protocol and the like can be embedded in the operating system of the second terminal, and the program code for screen projection, the DLNA protocol and the like are given the same authority as the operating system, so that the screen projection function can be realized on the operating system level.
Therefore, the influence of system operation on the screen projecting function can be reduced, the permission of the screen projecting function is improved, for example, an operation interface of a system of a second terminal can be displayed on the first terminal, and the applicability of the screen projecting function is improved.
In one embodiment, obtaining second identification information from any connected terminal includes obtaining the second identification information from the any terminal through a bluetooth connection; and/or, obtaining the second identification information from the arbitrary terminal through local area network connection; and/or acquiring the second identification information of a first preset position of a first preset server preset in a wide area network by the arbitrary terminal;
here, the arbitrary terminal may include a first terminal; when the screen projection function of any terminal is activated, the second identification information of any terminal can be broadcasted according to the protocol.
If any terminal is connected with the second terminal through the Bluetooth, the second terminal can search and acquire second identification information through the Bluetooth connection when the screen projection function is started;
any terminal and the second terminal are in the same local area network, so that the second terminal can search and acquire second identification information in the local area network when the screen projection function is started;
any terminal can set self identification information at a first preset position of a first preset server. The first preset position can be used for setting more than one terminal identification information and providing the terminal for screen projection to read. For example, when the first terminal allows the screen to be projected, the first identification information may be set at the first preset position and read by the screen projection terminal; the second terminal may search for second identification information of the terminal that can be screen-projected at a first preset location of the first preset server. The first preset server may be a cloud server, and may include one or more server devices.
And after acquiring the second identification information, the second terminal judges whether the second identification information is the same as the first identification information, and if the second identification information is the same as the first identification information, the second terminal casts a screen to the first terminal. Otherwise, the screen-projected terminal can be manually selected.
Here, the second terminal searches the first terminal through bluetooth, a local area network or a cloud; the second terminal is not limited to the local area network to search the screen projection terminal, and adaptability of the screen projection scene is improved.
In one embodiment, the saving the first identification information of the first terminal includes: and storing the first identification information of the first terminal at a second preset position of a second preset server.
Here, the second preset server may be a cloud server, and the second terminal may upload the acquired first identification information to a second preset position of the second preset server; in the subsequent screen projection process, the first identification information can be read from a second preset position of a second preset server;
therefore, the storage space of the second terminal can be saved, backup can be performed, and when the second terminal loses data or the system is reset, the first identification information can be recovered from the second preset position of the second preset server.
In one embodiment, the sending the screen-projected content of the second terminal to the first terminal when the second identification information is the same as the stored first identification information comprises:
and when the second identification information is the same as the stored first identification information and the second identification information is the only acquired identification information, sending screen projection content of the second terminal to the first terminal.
Here, in the process of searching the screen-projected terminal, if only the first terminal is searched to be available for screen projection, the second terminal sends the screen projection content to the first terminal; the manual selection can be performed by the user in the case that a plurality of projected terminals are searched.
Therefore, the accuracy of selection of the screen projection terminal can be improved. The method and the device reduce the occurrence of the situation that the screen-projected terminal is selected by mistake due to uncertain real selection intention of the user.
In one embodiment, the sending the screen-projected content of the second terminal to the first terminal includes sending the screen-projected content of the second terminal to the first terminal in an indirect or direct manner.
Here, the second terminal may directly or indirectly transmit the screen-shot content to the first terminal. And if the screen projection content is in a direct mode, the second terminal can be connected with the first terminal through network direct connection and sends the screen projection content. The network direct connection can be realized by adopting a wireless network, bluetooth, a wired network, USB and the like. If the screen projection content is indirectly sent, the second terminal can send the screen projection content to the first terminal through the transfer equipment. The relay device may be other devices having a data relay or processing function, such as a routing device, a cloud server, and the like.
The first preset server and the second preset server may be the same server or may not be the same server. The first preset server, the second preset server and the third preset server can respectively or jointly provide a cloud service function of screen projection, for example, the first preset server, the second preset server and the third preset server are used for the first terminal to upload first identification information, the second terminal to store the first identification information, the second terminal to forward screen projection content to the first terminal through the cloud, and the like.
In one embodiment, the first terminal is a television terminal.
Television terminals, including televisions and the like, typically do not have unique identification information. When a screen is projected, the screen projection terminal usually adopts a device name to identify the television. The name renaming probability of the television equipment is high, so that the problem that a user cannot accurately select the name is caused. The unique identification information is set in the television, so that the screen projection terminal can accurately select the television to be projected in the screen projection process. The identification information can be set in a screen projection application of the television, and when the screen projection application is started by the television, the identification information can be acquired by the screen projection terminal.
Fig. 3 is a flowchart illustrating a screen projection method according to an exemplary embodiment, where the screen projection method is used in a screen projection terminal device, as shown in fig. 3, and includes the following steps:
step 301: presetting third identification information in a third terminal; wherein the third identification information uniquely identifies the third terminal;
step 302: carrying out an interactive process of first screen projection from a fourth terminal to a third terminal, sending the third identification information to the fourth terminal, and storing the third identification information by the fourth terminal;
the stored third identification information is used for comparing a fourth identification information obtained from any connected terminal with a fourth identification information in a non-first screen projection process of a fourth terminal, and when the fourth identification information is the same as the stored third identification information, screen projection content of the fourth terminal is sent to the third terminal; the fourth identification information uniquely identifies one terminal.
Here, the third terminal may be a television, a projection, or the like, projected terminal. The fourth terminal can be a screen projection terminal such as a mobile phone;
unique identification information such as UID can be set for each screen-projected terminal; the identification information may be self-defined non-repetitive information, or some identification information inherent to the screen-projected terminal itself may be used as the identification information, for example, the MAC address of the network adapter of the screen-projected terminal itself is used as the identification information of the screen-projected terminal, and since the MAC address has uniqueness, the identification information also has uniqueness to the screen-projected terminal.
The identification information can be broadcasted through a DLNA protocol and the like in the screen projection interaction process, so that the identification information can be acquired by the screen projection terminal. The broadcasting route may be bluetooth, local area network, etc.
And in the interactive process that the fourth terminal carries out screen projection for the first time on the third terminal, the fourth terminal stores the third identification information of the third terminal so as to determine that the third terminal is a screen projected terminal capable of carrying out screen projection. The acquired third identification information may be stored in a preset storage location of the fourth terminal.
And in the subsequent non-initial screen projection process, the fourth terminal starts the screen projection function and searches the identification information of the terminal equipment capable of projecting the screen. Because the third identification information and the fourth identification information are unique to the screen-projected terminal, if the searched fourth identification information is the same as the stored third identification information, it is indicated that the fourth identification information and the third identification information belong to the same screen-projected terminal, i.e., the third terminal. The fourth terminal can send the screen projection content to the third terminal for screen projection. It is no longer necessary to manually select the terminal being screened.
The fourth terminal saves the unique first identification information of the third terminal according to the first screen projection, identifies the projected screen terminal capable of projecting the screen according to the first identification information in the subsequent screen projection, and projects the screen; the screen-cast terminal selection error condition caused by the repeated equipment name of the screen-cast terminal is reduced; the user is not required to manually select the screen-projected terminal, so that the screen-projecting operation is simpler and more convenient, and the user experience is improved.
Here, the fourth terminal may directly or indirectly transmit the screen-shot content to the third terminal. And if the screen is in a direct mode, the fourth terminal can be connected with the second terminal through network direct connection and sends screen-casting content. The network direct connection can be realized by adopting a wireless network, bluetooth, a wired network, USB and the like. If the screen projection content is indirectly sent, the fourth terminal can send the screen projection content to the third terminal through the transfer equipment. The relay device may be other devices having a data relay or processing function, such as a routing device, a cloud server, and the like.
In an embodiment, the presetting of the third identification information in the third terminal includes: and setting the third identification information in a screen projection application of a third terminal.
The first identification information may be set in a screen-casting application of the first terminal, and in an interactive process in which the second terminal casts a screen to the first terminal for the first time, the first terminal sends the first identification information to the second terminal through the screen-casting application. The second terminal stores the first identification information sent by the first terminal, so that the first terminal is determined to be a screen-projected terminal capable of projecting the screen. The first identification information may be stored in a preset storage location of the second terminal.
In one embodiment, the method further comprises: and setting the third identification information at a third preset position of a third preset server.
The third terminal may set third identification information in a third preset of the third preset server. The third preset setting can be used for setting more than one terminal identification information, and the terminal identification information is provided for the screen projection terminal to read. For example, when the third terminal allows the screen to be projected, the third terminal may set the third identification information at the third preset position, and the third identification information is read by the screen projection terminal; the fourth terminal may search for third identification information at a third preset position of the third preset server, determine the third terminal according to the third identification information, and send the screen projection content to the third terminal. The third preset server may be a cloud server, and may include one or more server devices.
When the screen projection function is activated, the third identification information of the third terminal may also be broadcasted through bluetooth connection, local area network, and the like according to protocols such as DLNA, and the like, so as to be received by the fourth terminal.
In one embodiment, the sending the screen-casting content of the fourth terminal to the third terminal when the fourth identification information is the same as the saved third identification information includes: and when the fourth identification information is the same as the stored third identification information and is the identification information uniquely received by the fourth terminal, sending the screen-casting content of the fourth terminal to the third terminal.
Here, in the process of searching the screen-projected terminal, if only the third terminal is searched to be available for screen projection, the fourth terminal sends the screen-projected content to the third terminal; the manual selection can be performed by the user in the case that a plurality of projected terminals are searched.
Therefore, the accuracy of selection of the screen-projected terminal can be improved. The method and the device reduce the occurrence of the situation that the screen-projected terminal is selected wrongly due to uncertain real selection intentions of the user.
In one embodiment, the third terminal is a television terminal.
Television terminals, including televisions and the like, typically do not have unique identification information. When a screen is projected, the screen projection terminal usually adopts a device name to identify the television. The name renaming probability of the television equipment is high, so that the problem that a user cannot accurately select the name is caused. The unique identification information is set in the television, so that the screen projection terminal can accurately select the projected television in the screen projection process. The identification information can be set in a screen-casting application of the television, and when the screen-casting application is started by the television, the identification information can be acquired by the screen-casting terminal.
Fig. 4 is a block diagram illustrating a screen projection device 100 according to an exemplary embodiment. Referring to fig. 4, the apparatus 100 includes: a receiving module 110, a storing module 120, an obtaining module 130 and a first sending module 140, wherein,
the receiving module 110 is configured to perform an interaction process of first screen projection to the first terminal at the second terminal, and receive first identification information sent by the first terminal; wherein the first identification information uniquely identifies the first terminal;
the storage module 120 is configured to store first identification information of the first terminal;
the obtaining module 130 is configured to obtain second identification information from any connected terminal in a non-initial screen-casting process, where the second identification information uniquely identifies one terminal;
the sending module 140 is configured to send the screen-casting content of the second terminal to the first terminal when the second identification information is the same as the stored first identification information.
In one embodiment, as shown in fig. 5, the obtaining module 130 includes:
the first obtaining submodule 131 is configured to obtain, in the operating system layer, second identification information from any connected terminal;
the first transmitting module 140 includes:
the first sending sub-module 141 is configured to send, in an operating system layer, the screen-casting content of the second terminal to the first terminal.
In one embodiment, as shown in fig. 6, the obtaining module 130 includes:
a second obtaining sub-module 132, configured to obtain the second identification information from the arbitrary terminal through bluetooth connection;
and/or the presence of a gas in the atmosphere,
acquiring the second identification information from the arbitrary terminal through local area network connection;
and/or the presence of a gas in the gas,
and acquiring the second identification information of a first preset position of a first preset server preset in a wide area network by the arbitrary terminal.
In one embodiment, as shown in fig. 7, the storage module 120 includes:
the first storage submodule 121 is configured to store the first identification information of the first terminal at a second preset location of a second preset server.
In one embodiment, as shown in fig. 8, the first sending module 140 includes:
and the second sending sub-module 142 is configured to send the screen-casting content of the second terminal to the first terminal when the second identification information is the same as the stored first identification information and the second identification information is the only acquired identification information.
In one embodiment, as shown in fig. 9, the first sending module 140 includes:
and a third sending sub-module 143, configured to send the screen-cast content of the second terminal to the first terminal in an indirect or direct manner.
In one embodiment, the first terminal is a television terminal.
Fig. 10 is a block diagram illustrating a screen projection device 200 according to an exemplary embodiment. Referring to fig. 11, the apparatus 200 includes: a first setup module 210 and a second send module 220, wherein,
the first setting module 210 is configured to preset third identification information in a third terminal; wherein the third identification information uniquely identifies the third terminal;
the second sending module 220 is configured to send the third identification information to the fourth terminal in an interaction process of first screen projection from the fourth terminal to the third terminal, and store the third identification information by the fourth terminal;
the stored third identification information is used for comparing a fourth identification information obtained from any connected terminal with a fourth identification information in a non-first screen projection process of a fourth terminal, and when the fourth identification information is the same as the stored third identification information, screen projection content of the fourth terminal is sent to the third terminal; the fourth identification information uniquely identifies one terminal.
In one embodiment, as shown in fig. 11, the first setting module 210 includes:
the first setting sub-module 211 is configured to set the third identification information in a screen-casting application of a third terminal.
In one embodiment, as shown in fig. 12, the apparatus 200 further comprises:
the second setting module 230 is configured to set third identification information at a third preset position where a third server is preset.
In an embodiment, the stored third identification information is specifically configured to: the fourth terminal compares fourth identification information acquired from any connected terminal in a non-initial screen projection process, and when the fourth identification information is the same as the stored third identification information and is the identification information uniquely received by the fourth terminal, screen projection content of the fourth terminal is sent to the third terminal; the fourth identification information uniquely identifies one terminal.
In one embodiment, the third terminal is a television terminal.
Fig. 13 is a block diagram illustrating an apparatus 800 for screen projection according to an example embodiment. For example, the apparatus 800 may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, an exercise device, a personal digital assistant, and the like.
Referring to fig. 13, the apparatus 800 may include one or more of the following components: processing component 802, memory 804, power component 806, multimedia component 808, audio component 810, input/output (I/O) interface 812, sensor component 814, and communication component 816.
The processing component 802 generally controls overall operation of the device 800, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing components 802 may include one or more processors 820 to execute instructions to perform all or a portion of the steps of the methods described above. Further, the processing component 802 can include one or more modules that facilitate interaction between the processing component 802 and other components. For example, the processing component 802 can include a multimedia module to facilitate interaction between the multimedia component 808 and the processing component 802.
The memory 804 is configured to store various types of data to support operation at the device 800. Examples of such data include instructions for any application or method operating on device 800, contact data, phonebook data, messages, pictures, videos, and so forth. The memory 804 may be implemented by any type or combination of volatile or non-volatile memory devices, such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disks.
A power supply component 806 provides power to the various components of the device 800. The power components 806 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for the apparatus 800.
The multimedia component 808 includes a screen that provides an output interface between the device 800 and a user. In some embodiments, the screen may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive an input signal from a user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundary of a touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 808 includes a front facing camera and/or a rear facing camera. The front-facing camera and/or the rear-facing camera may receive external multimedia data when the device 800 is in an operating mode, such as a shooting mode or a video mode. Each front camera and rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.
The audio component 810 is configured to output and/or input audio signals. For example, audio component 810 includes a Microphone (MIC) configured to receive external audio signals when apparatus 800 is in an operational mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals may further be stored in the memory 804 or transmitted via the communication component 816. In some embodiments, audio component 810 also includes a speaker for outputting audio signals.
The I/O interface 812 provides an interface between the processing component 802 and peripheral interface modules, which may be keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to: a home button, a volume button, a start button, and a lock button.
The sensor assembly 814 includes one or more sensors for providing various aspects of state assessment for the device 800. For example, the sensor assembly 814 may detect the open/closed state of the device 800, the relative positioning of components, such as a display and keypad of the apparatus 800, the sensor assembly 814 may also detect a change in position of the apparatus 800 or a component of the apparatus 800, the presence or absence of user contact with the apparatus 800, orientation or acceleration/deceleration of the apparatus 800, and a change in temperature of the apparatus 800. Sensor assembly 814 may include a proximity sensor configured to detect the presence of a nearby object without any physical contact. The sensor assembly 814 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 814 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.
The communication component 816 is configured to facilitate communications between the apparatus 800 and other devices in a wired or wireless manner. The device 800 may access a wireless network based on a communication standard, such as WiFi,2G or 3G, or a combination thereof. In an exemplary embodiment, the communication component 816 receives a broadcast signal or broadcast related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 816 further includes a Near Field Communication (NFC) module to facilitate short-range communications. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, ultra Wideband (UWB) technology, bluetooth (BT) technology, and other technologies.
In an exemplary embodiment, the apparatus 800 may be implemented by one or more Application Specific Integrated Circuits (ASICs), digital Signal Processors (DSPs), digital Signal Processing Devices (DSPDs), programmable Logic Devices (PLDs), field Programmable Gate Arrays (FPGAs), controllers, micro-controllers, microprocessors, or other electronic components for performing the above-described methods.
In an exemplary embodiment, a non-transitory computer-readable storage medium comprising instructions, such as the memory 804 comprising instructions, executable by the processor 820 of the device 800 to perform the above-described method is also provided. For example, the non-transitory computer readable storage medium may be a ROM, a Random Access Memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like.
A non-transitory computer readable storage medium having instructions therein, which when executed by a processor of a mobile terminal, enable the mobile terminal to perform a screen projection method, the method comprising:
other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.
It will be understood that the invention is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.

Claims (24)

1. A screen projection method is applied to a second terminal, and comprises the following steps:
carrying out an interactive process of first screen projection on a first terminal at a second terminal, and receiving first identification information sent by the first terminal; wherein the first identification information uniquely identifies the first terminal;
saving first identification information of the first terminal;
in the non-initial screen projection process, second identification information is obtained from any connected terminal, wherein the second identification information uniquely identifies one terminal; acquiring second identification information from any connected terminal, wherein the second identification information comprises the second identification information sent by any terminal;
when the second identification information is the same as the stored first identification information, screen projection content of the second terminal is sent to the first terminal;
the acquiring of the second identification information from the connected arbitrary terminal includes:
acquiring second identification information from any connected terminal at an operating system layer;
sending the screen projection content of the second terminal to the first terminal, including:
and sending the screen projection content of the second terminal to the first terminal at an operating system layer.
2. The method according to claim 1, wherein the second identification information is acquired from any terminal connected thereto, including,
acquiring the second identification information from the arbitrary terminal through Bluetooth connection;
and/or the presence of a gas in the gas,
acquiring the second identification information from the arbitrary terminal through local area network connection;
and/or the presence of a gas in the gas,
and acquiring the second identification information of a first preset position of a first preset server preset in a wide area network by the arbitrary terminal.
3. The method of claim 1, wherein the saving the first identification information of the first terminal comprises:
and storing the first identification information of the first terminal at a second preset position of a second preset server.
4. The method according to any one of claims 1 to 3, wherein the sending the screen-shot content of the second terminal to the first terminal when the second identification information is the same as the saved first identification information comprises:
and when the second identification information is the same as the stored first identification information and the second identification information is the only acquired identification information, sending screen projection content of the second terminal to the first terminal.
5. The method of claim 4, wherein sending the screen-shot content of the second terminal to the first terminal comprises,
and sending the screen projection content of the second terminal to the first terminal in an indirect or direct mode.
6. The method of claim 5, wherein the first terminal is a television terminal.
7. A screen projection method is applied to a third terminal, and comprises the following steps:
presetting third identification information in a third terminal; wherein the third identification information uniquely identifies the third terminal;
carrying out an interactive process of first screen projection from a fourth terminal to a third terminal, sending the third identification information to the fourth terminal, and storing the third identification information by the fourth terminal;
the stored third identification information is used for comparing a fourth identification information obtained from any connected terminal with a fourth identification information in a non-first screen projection process of a fourth terminal, and when the fourth identification information is the same as the stored third identification information, screen projection content of the fourth terminal is sent to the third terminal; the fourth identification information uniquely identifies one terminal, wherein the fourth identification information is sent to the fourth terminal by any terminal and is obtained by the fourth terminal in an operating system layer; and the screen projection content is sent to the third terminal by the fourth terminal at an operating system layer.
8. The method according to claim 7, wherein the presetting of the third identification information in the third terminal comprises:
and setting the third identification information in a screen projection application of a third terminal.
9. The method of claim 7, further comprising:
and setting the third identification information at a third preset position of a third preset server.
10. The method according to any one of claims 7 to 9, wherein the sending the screen-shot content of the fourth terminal to the third terminal when the fourth identification information is the same as the saved third identification information comprises:
and when the fourth identification information is the same as the stored third identification information and is the identification information uniquely received by the fourth terminal, sending the screen projection content of the fourth terminal to the third terminal.
11. The method of claim 10, wherein the third terminal is a television terminal.
12. A screen projection device, which is applied to a second terminal, the device comprising: a receiving module, a storage module, an acquisition module and a first sending module, wherein,
the receiving module is used for receiving first identification information sent by the first terminal in an interactive process of first screen projection from the second terminal to the first terminal; wherein the first identification information uniquely identifies the first terminal; acquiring second identification information from any connected terminal, wherein the second identification information comprises the second identification information sent by any terminal;
the storage module is used for storing first identification information of the first terminal;
the acquisition module is used for acquiring second identification information from any connected terminal in a non-initial screen projection process, wherein the second identification information uniquely identifies one terminal;
the sending module is used for sending the screen-casting content of the second terminal to the first terminal when the second identification information is the same as the stored first identification information;
the first obtaining submodule is used for obtaining second identification information from any connected terminal on an operating system layer;
the first sending module includes:
and the first sending submodule is used for sending the screen throwing content of the second terminal to the first terminal on an operating system layer.
13. The apparatus of claim 12, wherein the obtaining module comprises:
the second obtaining submodule is used for obtaining the second identification information from the arbitrary terminal through Bluetooth connection;
and/or the presence of a gas in the atmosphere,
acquiring the second identification information from the arbitrary terminal through local area network connection;
and/or the presence of a gas in the gas,
and acquiring the second identification information of a first preset position of a first preset server preset in a wide area network by the arbitrary terminal.
14. The apparatus of claim 12, wherein the storage module comprises:
and the first storage submodule is used for storing the first identification information of the first terminal at a second preset position of a second preset server.
15. The apparatus according to any of claims 12 to 14, wherein the first sending module comprises: and the second sending submodule is used for sending the screen projection content of the second terminal to the first terminal when the second identification information is the same as the stored first identification information and the second identification information is the only acquired identification information.
16. The apparatus of claim 15, wherein the first sending module comprises:
and the third sending submodule is used for sending the screen-casting content of the second terminal to the first terminal in an indirect or direct mode.
17. The apparatus of claim 16, wherein the first terminal is a television terminal.
18. A screen projection device, which is applied to a third terminal, the device comprising: a first setting module and a second sending module, wherein,
the first setting module is used for presetting third identification information in a third terminal; wherein the third identification information uniquely identifies the third terminal;
the second sending module is used for sending the third identification information to a fourth terminal in an interactive process of first screen projection from the fourth terminal to a third terminal, and storing the third identification information by the fourth terminal;
the stored third identification information is used for comparing a fourth identification information obtained from any connected terminal with a fourth identification information in a non-first screen projection process of a fourth terminal, and when the fourth identification information is the same as the stored third identification information, screen projection content of the fourth terminal is sent to the third terminal; the fourth identification information uniquely identifies one terminal, wherein the fourth identification information is sent to the fourth terminal by any terminal and is obtained by the fourth terminal in an operating system layer; and the screen projection content is sent to the third terminal by the fourth terminal at an operating system layer.
19. The apparatus of claim 18, wherein the first setup module comprises:
and the first setting submodule is used for setting the third identification information in the screen projection application of the third terminal.
20. The apparatus of claim 18, further comprising:
and the second setting module is used for setting third identification information at a third preset position of a third preset server.
21. The apparatus according to any one of claims 18 to 20, wherein the saved third identification information is specifically configured to: the fourth terminal compares fourth identification information acquired from any connected terminal in a non-initial screen projection process, and when the fourth identification information is the same as the stored third identification information and is the identification information uniquely received by the fourth terminal, screen projection content of the fourth terminal is sent to the third terminal; the fourth identification information uniquely identifies one terminal.
22. The apparatus of claim 21, wherein the third terminal is a television terminal.
23. A screen projection terminal, comprising: processor, transceiver, memory and executable program stored on the memory and executable by the processor, wherein the steps of the screen projection method according to any of claims 1 to 6 or 7 to 11 are performed when the executable program is executed by the processor.
24. A storage medium on which an executable program is stored, wherein the executable program when executed by a processor implements the steps of the screen projection method as claimed in any one of claims 1 to 6 or 7 to 11.
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