CN112218151A - Screen projection method, device, computer storage medium and system - Google Patents
Screen projection method, device, computer storage medium and system Download PDFInfo
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- CN112218151A CN112218151A CN201910623535.7A CN201910623535A CN112218151A CN 112218151 A CN112218151 A CN 112218151A CN 201910623535 A CN201910623535 A CN 201910623535A CN 112218151 A CN112218151 A CN 112218151A
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- 238000000034 method Methods 0.000 title claims abstract description 55
- 230000015654 memory Effects 0.000 claims description 32
- 238000004891 communication Methods 0.000 claims description 21
- 238000004590 computer program Methods 0.000 claims description 17
- 230000000694 effects Effects 0.000 abstract description 9
- 230000005540 biological transmission Effects 0.000 description 20
- 238000005266 casting Methods 0.000 description 20
- 230000002457 bidirectional effect Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000012790 confirmation Methods 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—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]
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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
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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
- H04N21/414—Specialised client platforms, e.g. receiver in car or embedded in a mobile appliance
- H04N21/41422—Specialised client platforms, e.g. receiver in car or embedded in a mobile appliance located in transportation means, e.g. personal vehicle
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Abstract
The invention discloses a screen projection method, a screen projection device, a computer storage medium and a screen projection system, wherein the screen projection method comprises the following steps: the mobile terminal responds to screen projection operation of the network file and acquires address information of the network file; and the mobile terminal sends a screen projection instruction carrying the address information of the network file to the vehicle-mounted terminal. According to the screen projection method, the screen projection device, the computer storage medium and the screen projection system, the mobile terminal sends the address information of the network file to be projected to the vehicle-mounted terminal, so that the vehicle-mounted terminal obtains the corresponding network file according to the address information of the network file and projects the screen of the network file, the screen projection effect can be effectively improved, and the user experience is improved.
Description
Technical Field
The invention relates to the field of vehicles, in particular to a screen projection method, a screen projection device, a computer storage medium and a screen projection system.
Background
Because the mobile phone has the limitations of small screen, small loudspeaker volume and the like, a plurality of people cannot conveniently watch files such as videos played by the mobile phone at the same time, the display screen of the car machine is generally large, the loudspeaker volume is also large, and the requirement of watching the files by the plurality of people at the same time can be met, so more and more users like to throw the display content on the mobile phone screen to the car machine screen for displaying. In the screen projection process, the mobile phone and the vehicle machine need to be connected to the same WIFI network, and the display content on the screen of the mobile phone is transmitted to the display screen of the vehicle machine by the mobile phone through the WIFI network. However, in a vehicle-mounted environment, if the mobile phone performs the screen projection operation while downloading data, since there is bidirectional data transmission between the vehicle-mounted terminal providing the WIFI network and the mobile phone, the screen projection effect may be unsatisfactory, which may affect the user experience, and especially when the mobile phone performs the screen projection operation on network video, the situation that the video is played in a stuck state or cannot be played easily occurs.
Disclosure of Invention
The invention aims to provide a screen projection method, a screen projection device, a computer storage medium and a screen projection system, which can effectively improve the screen projection effect and improve the user experience.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
in a first aspect, an embodiment of the present invention provides a screen projection method, where the screen projection method includes:
the mobile terminal responds to screen projection operation of the network file and acquires address information of the network file;
and the mobile terminal sends a screen projection instruction carrying the address information of the network file to the vehicle-mounted terminal.
As one implementation manner, before the mobile terminal sends a screen projection instruction carrying address information of the network file to the vehicle-mounted terminal, the method further includes:
and the mobile terminal and the vehicle-mounted terminal establish communication connection through WIFI provided by the vehicle-mounted terminal.
As one implementation, the vehicle-mounted terminal includes a vehicle-mounted device and a vehicle-mounted T-BOX, and the step of sending, by the mobile terminal to the vehicle-mounted terminal, a screen-casting instruction carrying address information of the network file includes:
and the mobile terminal sends a screen projection instruction carrying the address information of the network file to the vehicle-mounted T-BOX so as to request the vehicle-mounted T-BOX to acquire the corresponding network file according to the address information of the network file and send the network file to the vehicle machine.
In one embodiment, the network file includes a network video file, and/or a network audio file.
In a second aspect, an embodiment of the present invention provides a screen projection method, where the screen projection method includes:
the method comprises the steps that a vehicle-mounted terminal receives a screen projection instruction which is sent by a mobile terminal and carries address information of a network file;
the vehicle-mounted terminal responds to the screen projection instruction and acquires a corresponding network file according to the address information of the network file;
and the vehicle-mounted terminal executes screen projection operation on the network file.
As one implementation mode, the vehicle-mounted terminal comprises a vehicle machine and a vehicle-mounted T-BOX; wherein,
the vehicle-mounted T-BOX receives a screen projection instruction which is sent by a mobile terminal and carries address information of a network file, acquires a corresponding network file according to the address information of the network file, and sends the network file to the vehicle machine;
and the vehicle machine receives the network file sent by the vehicle-mounted T-BOX and displays the network file on a display screen.
In one embodiment, the network file includes a network video file, and/or a network audio file.
In a third aspect, an embodiment of the present invention provides a screen projection apparatus, including: a processor and a memory storing a computer program which, when executed by the processor, implement the screen projection method according to the first or second aspect.
In a fourth aspect, an embodiment of the present invention provides a computer storage medium, in which a computer program is stored, and the computer program, when executed by a processor, implements the screen projection method according to the first aspect or the second aspect.
In a fifth aspect, an embodiment of the present invention provides a screen projection system, including: a mobile terminal and a vehicle-mounted terminal; wherein,
the mobile terminal is used for responding to screen projection operation of a network file, acquiring address information of the network file and sending a screen projection instruction carrying the address information of the network file to the vehicle-mounted terminal;
the vehicle-mounted terminal is used for receiving the screen projection instruction sent by the mobile terminal, acquiring a corresponding network file according to the address information of the network file, and executing screen projection operation on the network file.
The screen projection method, the screen projection device, the computer storage medium and the screen projection system provided by the embodiment of the invention comprise the following steps: the mobile terminal responds to screen projection operation of the network file and acquires address information of the network file; and the mobile terminal sends a screen projection instruction carrying the address information of the network file to the vehicle-mounted terminal. Therefore, the mobile terminal sends the address information of the network file to be subjected to screen projection to the vehicle-mounted terminal, so that the vehicle-mounted terminal can acquire the corresponding network file according to the address information of the network file and project the screen of the network file, the situation that the mobile terminal downloads the network file and sends the downloaded network file to the vehicle-mounted terminal through a WIFI network provided by the vehicle-mounted terminal can be effectively avoided, namely, the situation that two-way data transmission exists between the mobile terminal and the vehicle-mounted terminal at the same time is avoided, the screen projection effect is effectively improved, and the user experience is improved.
Drawings
FIG. 1 is a schematic diagram of an application environment of a screen projection method according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of an application environment of a screen projection method according to another embodiment of the present invention;
FIG. 3 is a flowchart illustrating a screen projection method according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a screen projecting device according to an embodiment of the present invention;
FIG. 5 is a flowchart illustrating a screen projection method according to another embodiment of the present invention;
FIG. 6 is a schematic structural diagram of a screen projection system according to an embodiment of the present invention;
FIG. 7 is a schematic view of a screen projection process of a conventional screen projection system;
fig. 8 is a schematic view of a screen projection process of the screen projection system according to an embodiment of the present invention.
Detailed Description
The technical scheme of the invention is further elaborated by combining the drawings and the specific embodiments in the specification. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Fig. 1 is a schematic view of an optional application environment of the screen projecting method provided in the embodiment of the present invention, including a mobile terminal 10 and a vehicle 11, where the vehicle 11 has a wireless communication device, the wireless communication device can provide a WIFI network, that is, the vehicle 11 can provide a WIFI network, and the mobile terminal 10 establishes a communication connection with the vehicle 11 through the WIFI network. After receiving a screen-casting operation of a network file by a user, the mobile terminal 10 responds to the screen-casting operation of the network file to acquire address information of the network file, and sends a screen-casting instruction carrying the address information of the network file to the vehicle machine 11; the vehicle machine 11 responds to the screen-casting instruction, acquires a corresponding network file based on the WIFI network and according to the address information of the network file, and performs screen-casting operation on the network file. Therefore, the mobile terminal sends the address information of the network file to be subjected to screen projection to the vehicle machine, so that the vehicle machine can acquire the corresponding network file according to the address information of the network file and perform screen projection operation on the network file, the mobile terminal can be effectively prevented from downloading the network file through a WIFI network provided by the vehicle machine and sending the downloaded network file to the vehicle machine at the same time, and bidirectional data transmission between the mobile terminal and the vehicle machine is avoided. Here, the mobile terminal may be a smart phone, a tablet computer, or the like.
Fig. 2 is a schematic view of another optional application environment of the screen projecting method according to the embodiment of the present invention, which includes a mobile terminal 10, a vehicle machine 11, and a vehicle-mounted T-BOX12, where the vehicle-mounted T-BOX12 has a wireless communication device, the wireless communication device can provide a WIFI network, that is, the vehicle-mounted T-BOX12 can provide the WIFI network, and the mobile terminal 10 establishes a communication connection with the vehicle machine 11 through the WIFI network that the vehicle-mounted T-BOX12 can provide. After receiving a screen projection operation of a user on a certain network file, the mobile terminal 10 responds to the screen projection operation on the network file to acquire address information of the network file and sends a screen projection instruction carrying the address information of the network file to the vehicle-mounted T-BOX 12; the vehicle-mounted T-BOX12 responds to the screen projecting instruction, acquires a corresponding network file based on the WIFI network and according to the address information of the network file, and sends the network file to the vehicle 11, so that the vehicle 11 performs screen projecting operation on the network file. Therefore, the mobile terminal sends the address information of the network file to be projected to the vehicle-mounted T-BOX, so that the vehicle-mounted T-BOX obtains the corresponding network file according to the address information of the network file and sends the network file to the vehicle-mounted machine for projection, the mobile terminal can be effectively prevented from downloading the network file through a WIFI network provided by the vehicle-mounted T-BOX and sending the downloaded network file to the vehicle-mounted T-BOX at the same time, and the situation that bidirectional data transmission exists between the mobile terminal and the vehicle-mounted T-BOX at the same time is avoided. Here, the mobile terminal may be a smart phone, a tablet computer, or the like.
Referring to fig. 3, a screen projection method provided in an embodiment of the present invention is applicable to the mobile terminal 10 in fig. 1 and 2, and the screen projection method includes:
step S101: the mobile terminal responds to screen projection operation of the network file and acquires address information of the network file;
it should be noted that the network file refers to a file stored in a network end, such as a third-party server, and includes network multimedia files, such as a network video file and a network audio file. The screen-casting operation interface of the mobile terminal can display information such as names and brief introductions of network files, and can provide selection operation buttons or selection frames for the network files, and correspondingly, after receiving screen-casting operation of a user on a certain network file, the mobile terminal responds to the screen-casting operation on the network file if the certain network file is selected as a file to be subjected to screen casting, so as to acquire address information of the network file. The address information of the network file is used for indicating a storage position corresponding to the network file stored in a network terminal such as a third-party server, so that operations such as downloading the network file can be realized according to the address information of the network file. The address information of the network file may be pre-stored in the mobile terminal, for example, the mobile terminal may pre-obtain a program source including a program playing address or a downloading address from a network video website, and display the program source in the form of an on-demand menu, and correspondingly, the address information of the network file obtained by the mobile terminal may be obtained from the local. Taking a network file as a network movie suspect, for example, the mobile terminal can store information such as online viewing address or download address information and name of the movie in advance, and when a user selects the movie to perform screen projection viewing, the mobile terminal can directly obtain the online viewing address or download address information corresponding to the movie from the local. The mobile terminal may also obtain the address information of the network file from a third-party server, for example, the mobile terminal sends identification information of the network file, such as a name, to the third-party server through the wireless communication device, so as to obtain the address information of the network file corresponding to the identification information of the network file from the third-party server.
Step S102: and the mobile terminal sends a screen projection instruction carrying the address information of the network file to the vehicle-mounted terminal.
In an embodiment, before the mobile terminal sends a screen projection instruction carrying address information of the network file to a vehicle-mounted terminal, the method further includes: and the mobile terminal and the vehicle-mounted terminal establish communication connection through WIFI provided by the vehicle-mounted terminal. The in-vehicle terminal 2 is usually provided with a wireless communication device as a medium for the vehicle to communicate with the outside, and the wireless communication device is usually provided in a vehicle terminal such as a car machine or a vehicle-mounted T-BOX. Because the mobile terminal and the vehicle-mounted terminal need to be ensured to be connected to the same WIFI network during screen projection operation, and a provider of the WIFI network is usually the vehicle-mounted terminal under a vehicle-mounted environment, the mobile terminal needs to be in communication connection with the vehicle-mounted terminal through the WIFI provided by the vehicle-mounted terminal. The mobile terminal and the vehicle-mounted terminal establish communication connection through WIFI provided by the vehicle-mounted terminal, and the mobile terminal and the vehicle-mounted terminal also establish communication connection through WIFI provided by a vehicle-mounted T-BOX. Therefore, communication smoothness between the mobile terminal and the vehicle machine is ensured by establishing communication connection in advance.
Here, the mobile terminal sends the screen projection instruction carrying the address information of the network file to the vehicle-mounted terminal, and may be that the mobile terminal directly sends the screen projection instruction carrying the address information of the network file to the vehicle-mounted terminal, or that the mobile terminal indirectly sends the screen projection instruction carrying the address information of the network file to the vehicle-mounted terminal. It can be understood that, in a vehicle-mounted environment, the mobile terminal may only play the network file to be screen-projected through the display screen of the vehicle, and according to the difference of the vehicle-mounted terminal providing the WIFI network, the mobile terminal may directly send the screen-projecting instruction carrying the address information of the network file to the vehicle, or may indirectly send the screen-projecting instruction carrying the address information of the network file to the vehicle. In an embodiment, when the vehicle-mounted terminal includes a vehicle-mounted device and a vehicle-mounted T-BOX and the vehicle-mounted T-BOX provides a WIFI network, the step of sending, by the mobile terminal, a screen projection instruction carrying address information of the network file to the vehicle-mounted terminal includes: and the mobile terminal sends a screen projection instruction carrying the address information of the network file to the vehicle-mounted T-BOX so as to request the vehicle-mounted T-BOX to acquire the corresponding network file according to the address information of the network file and send the network file to the vehicle machine. Here, the vehicle-mounted T-BOX may also directly send the screen-throwing instruction to a vehicle machine when receiving the screen-throwing instruction carrying the address information of the network file sent by the mobile terminal, and obtain the corresponding network file according to the address information of the network file when receiving the screen-throwing confirmation instruction sent by the vehicle machine, and then send the network file to the vehicle machine. Therefore, when the vehicle-mounted T-BOX determines that the vehicle machine needs to screen the network file, the vehicle-mounted T-BOX acquires and sends the network file to the vehicle machine, so that the screen-throwing efficiency can be improved, and network resources are saved.
In one embodiment, when the vehicle-mounted device provides the WIFI network, the step of sending, by the mobile terminal to the vehicle-mounted terminal, a screen-casting instruction carrying address information of the network file includes: and the mobile terminal sends a screen-casting instruction carrying the address information of the network file to the vehicle machine to request the vehicle machine to acquire the corresponding network file according to the address information of the network file and cast the screen of the network file.
In summary, in the screen projecting method provided in the embodiment, the mobile terminal sends the screen projecting instruction carrying the address information of the network file to be screen-projected to the vehicle-mounted terminal, so that the vehicle-mounted terminal performs the screen projecting operation on the network file according to the screen projecting instruction, and the mobile terminal is not required to directly send the network file to the vehicle-mounted terminal, thereby effectively avoiding that the mobile terminal downloads the network file and sends the downloaded network file to the vehicle-mounted terminal through the WIFI network provided by the vehicle-mounted terminal at the same time, that is, avoiding that bidirectional data transmission exists between the mobile terminal and the vehicle-mounted terminal at the same time, effectively improving the screen projecting effect, and improving the user experience.
Based on the same inventive concept of the foregoing embodiments, an embodiment of the present invention provides a screen projection apparatus, which can be applied to a mobile terminal, and please refer to fig. 4, where the screen projection apparatus includes: a processor 110 and a memory 111 for storing computer programs capable of running on the processor 110; the processor 110 illustrated in fig. 4 is not used to refer to the number of the processors 110 as one, but is only used to refer to the position relationship of the processor 110 relative to other devices, and in practical applications, the number of the processors 110 may be one or more; similarly, the memory 111 illustrated in fig. 4 is also used in the same sense, that is, it is only used to refer to the position relationship of the memory 111 relative to other devices, and in practical applications, the number of the memory 111 may be one or more. The processor 110 is configured to implement the screen projection method applied to the mobile terminal when running the computer program.
The screen projection device may further include: at least one network interface 112. The various components of the screen projection device are coupled together by a bus system 113. It will be appreciated that the bus system 113 is used to enable communications among the components. The bus system 113 includes a power bus, a control bus, and a status signal bus in addition to the data bus. For clarity of illustration, however, the various buses are labeled as bus system 113 in FIG. 4.
The memory 111 in the embodiment of the present invention is used to store various types of data to support the operation of the projection device. Examples of such data include: any computer program for operating on the screen projection device, such as an operating system and application programs; contact data; telephone book data; a message; a picture; video, etc. The operating system includes various system programs, such as a framework layer, a core library layer, a driver layer, and the like, and is used for implementing various basic services and processing hardware-based tasks. The application programs may include various application programs such as a Media Player (Media Player), a Browser (Browser), etc. for implementing various application services. Here, the program that implements the method of the embodiment of the present invention may be included in an application program.
Based on the same inventive concept of the foregoing embodiments, this embodiment further provides a computer storage medium, where a computer program is stored in the computer storage medium, where the computer storage medium may be a Memory such as a magnetic random access Memory (FRAM), a Read Only Memory (ROM), a Programmable Read Only Memory (PROM), an Erasable Programmable Read Only Memory (EPROM), an Electrically Erasable Programmable Read Only Memory (EEPROM), a Flash Memory (Flash Memory), a magnetic surface Memory, an optical Disc, or a Compact Disc Read Only Memory (CD-ROM), and the like; or may be a variety of devices including one or any combination of the above memories, such as a mobile phone, computer, tablet device, personal digital assistant, etc. When the computer program stored in the computer storage medium is run by a processor, the screen projection method applied to the mobile terminal is realized. Please refer to the description of the embodiment shown in fig. 3 for a specific step flow realized when the computer program is executed by the processor, which is not described herein again.
Referring to fig. 5, a screen projecting method provided in an embodiment of the present invention may be applied to the car machine in fig. 1 or the vehicle-mounted T-BOX12 in fig. 2, and the screen projecting method includes: :
step S201: the method comprises the steps that a vehicle-mounted terminal receives a screen projection instruction which is sent by a mobile terminal and carries address information of a network file;
here, before the in-vehicle terminal receives the screen projection instruction carrying the address information of the network file sent by the mobile terminal in step S201, the method further includes: and the vehicle-mounted terminal establishes communication connection with the mobile terminal through the WIFI provided by the vehicle-mounted terminal. It can be understood that the vehicle-mounted terminal and the mobile terminal need to be connected to the same WIFI network when screen projection operation is performed between the vehicle-mounted terminal and the mobile terminal, and the WIFI network is usually provided by the vehicle-mounted terminal under a vehicle-mounted environment, for example, the WIFI network is provided by a vehicle-mounted machine or the WIFI network is provided by a vehicle-mounted T-BOX. Correspondingly, according to the difference of vehicle-mounted terminals providing a WIFI network, the vehicle-mounted terminal receives a screen-casting instruction which is sent by the mobile terminal and carries address information of a network file, the screen-casting instruction which is sent by the vehicle-mounted terminal and carries the address information of the network file may be received by the vehicle-mounted terminal, and the screen-casting instruction which is sent by the mobile terminal and carries the address information of the network file may also be received by the vehicle-mounted T-BOX. The network file refers to a file stored in a network end such as a third-party server, and includes network multimedia files such as network video files, network audio files and the like. The address information of the network file is used for indicating a storage position corresponding to the network file stored in a network terminal such as a third-party server, so that operations such as downloading the network file can be realized according to the address information of the network file.
Step S202: the vehicle-mounted terminal responds to the screen projection instruction and acquires a corresponding network file according to the address information of the network file;
specifically, the vehicle-mounted terminal responds to the screen-projecting instruction received in step S201, and acquires a corresponding network file according to the address information of the network file in the screen-projecting instruction.
Here, when the address information of the network file is known, the in-vehicle terminal may acquire the corresponding network file according to the address information of the network file.
Step S203: and the vehicle-mounted terminal executes screen projection operation on the network file.
It can be understood that, when the vehicle-mounted terminal includes a vehicle machine and provides a WIFI network by the vehicle machine, the vehicle-mounted terminal performing a screen projection operation on the network file may be to display the network file on a display screen of the vehicle machine, for example, when the network file is a network video file, the network video file is to be played on the display screen of the vehicle machine. When the vehicle-mounted terminal comprises a vehicle machine and a vehicle-mounted T-BOX, and the vehicle-mounted T-BOX provides a WIFI network, the vehicle-mounted terminal performs screen projection operation on the network file, wherein the vehicle-mounted T-BOX sends the network file to the vehicle machine so as to display the network file on a display screen of the vehicle machine, for example, when the network file is the network video file, the vehicle-mounted T-BOX sends the network video file to the vehicle machine so as to play the network video file on the display screen of the vehicle machine. In one embodiment, the vehicle-mounted terminal comprises a vehicle-mounted machine and a vehicle-mounted T-BOX; the vehicle-mounted T-BOX receives a screen projection instruction which is sent by a mobile terminal and carries address information of a network file, acquires a corresponding network file according to the address information of the network file, and sends the network file to the vehicle machine; and the vehicle machine receives the network file sent by the vehicle-mounted T-BOX and displays the network file on a display screen. Therefore, the screen can be projected in various modes according to the actual scene, and the screen projection flexibility is enhanced. It should be noted that the display screens of the car and the car machine may be connected through WIFI or in a wired manner, and when the display screens of the car and the car machine are in a wired manner, the transmission rate may be faster and the transmission quality may be better.
In summary, in the screen projecting method provided in the embodiment, the vehicle-mounted terminal receives the screen projecting instruction which is sent by the mobile terminal and carries the address information of the network file to be projected, so as to obtain the corresponding network file according to the address information of the network file in the screen projecting instruction, and perform the screen projecting operation on the network file, and the mobile terminal is not required to directly send the network file to the vehicle-mounted terminal, so that the mobile terminal can be effectively prevented from downloading the network file and sending the downloaded network file to the vehicle-mounted terminal through a WIFI network provided by the vehicle-mounted terminal at the same time, that is, bidirectional data transmission between the mobile terminal and the vehicle-mounted terminal is avoided, the screen projecting effect is effectively improved, and the user experience is improved.
Based on the same inventive concept of the foregoing embodiments, an embodiment of the present invention provides a screen projection apparatus, which may be applied to a vehicle-mounted terminal, please refer to fig. 4 again, where the screen projection apparatus includes: a processor 110 and a memory 111 for storing computer programs capable of running on the processor 110; the processor 110 illustrated in fig. 4 is not used to refer to the number of the processors 110 as one, but is only used to refer to the position relationship of the processor 110 relative to other devices, and in practical applications, the number of the processors 110 may be one or more; similarly, the memory 111 illustrated in fig. 4 is also used in the same sense, that is, it is only used to refer to the position relationship of the memory 111 relative to other devices, and in practical applications, the number of the memory 111 may be one or more. The processor 110 is configured to implement the screen projecting method applied to the vehicle-mounted terminal when the computer program is run.
The screen projection device may further include: at least one network interface 112. The various components of the screen projection device are coupled together by a bus system 113. It will be appreciated that the bus system 113 is used to enable communications among the components. The bus system 113 includes a power bus, a control bus, and a status signal bus in addition to the data bus. For clarity of illustration, however, the various buses are labeled as bus system 113 in FIG. 4.
The memory 111 in the embodiment of the present invention is used to store various types of data to support the operation of the projection device. Examples of such data include: any computer program for operating on the screen projection device, such as an operating system and application programs; contact data; telephone book data; a message; a picture; video, etc. The operating system includes various system programs, such as a framework layer, a core library layer, a driver layer, and the like, and is used for implementing various basic services and processing hardware-based tasks. The application programs may include various application programs such as a Media Player (Media Player), a Browser (Browser), etc. for implementing various application services. Here, the program that implements the method of the embodiment of the present invention may be included in an application program.
Based on the same inventive concept of the foregoing embodiments, this embodiment further provides a computer storage medium, where a computer program is stored in the computer storage medium, where the computer storage medium may be a Memory such as a magnetic random access Memory (FRAM), a Read Only Memory (ROM), a Programmable Read Only Memory (PROM), an Erasable Programmable Read Only Memory (EPROM), an Electrically Erasable Programmable Read Only Memory (EEPROM), a Flash Memory (Flash Memory), a magnetic surface Memory, an optical Disc, or a Compact Disc Read Only Memory (CD-ROM), and the like; or may be a variety of devices including one or any combination of the above memories, such as a mobile phone, computer, tablet device, personal digital assistant, etc. When the computer program stored in the computer storage medium is run by a processor, the screen projection method applied to the vehicle-mounted terminal is realized. Please refer to the description of the embodiment shown in fig. 5 for a specific step flow realized when the computer program is executed by the processor, which is not described herein again.
Referring to fig. 6, a screen projection system provided for an embodiment of the present invention includes: the mobile terminal 30 and the in-vehicle terminal 31; wherein,
the mobile terminal 30 is configured to respond to a screen-casting operation on a network file, acquire address information of the network file, and send a screen-casting instruction carrying the address information of the network file to the vehicle-mounted terminal 31;
the vehicle-mounted terminal 31 is configured to receive the screen-casting instruction sent by the mobile terminal 30, obtain a corresponding network file according to the address information of the network file, and perform a screen-casting operation on the network file.
In summary, the mobile terminal responds to the screen projection operation of the network file, acquires the address information of the network file, sends a screen projection instruction carrying the address information of the network file to the vehicle-mounted terminal, and the vehicle-mounted terminal acquires the corresponding network file according to the address information of the network file and projects the screen of the network file. Therefore, the mobile terminal sends the address information of the network file to be subjected to screen projection to the vehicle-mounted terminal, so that the vehicle-mounted terminal can acquire the corresponding network file according to the address information of the network file and project the screen of the network file, the situation that the mobile terminal downloads the network file and sends the downloaded network file to the vehicle-mounted terminal through a WIFI network provided by the vehicle-mounted terminal can be effectively avoided, namely, the situation that two-way data transmission exists between the mobile terminal and the vehicle-mounted terminal at the same time is avoided, the screen projection effect is effectively improved, and the user experience is improved.
In an embodiment, the mobile terminal 30 is further configured to establish a communication connection with the vehicle-mounted terminal 31 through WIFI provided by the vehicle-mounted terminal 31.
In one embodiment, the vehicle-mounted terminal comprises a vehicle-mounted machine and a vehicle-mounted T-BOX,
the vehicle-mounted T-BOX is used for receiving a screen-casting instruction which is sent by the mobile terminal 30 and carries address information of a network file, acquiring a corresponding network file according to the address information of the network file, and sending the network file to the vehicle machine;
the vehicle machine is used for receiving the network file sent by the vehicle-mounted T-BOX and displaying the network file on a display screen.
In one embodiment, the network file includes a network video file, and/or a network audio file.
Based on the same inventive concept of the foregoing embodiments, the present embodiment describes technical solutions of the foregoing embodiments in detail through specific examples. In this embodiment, a mobile terminal is taken as a mobile phone, and a vehicle-mounted terminal is taken as a vehicle-mounted device. In the existing screen projection scheme of the mobile phone and the vehicle, the display screens of the mobile phone and the vehicle are required to be connected to the same WIFI network, the mobile phone transmits the display content on the mobile phone screen to the WIFI router or the hotspot through the WIFI network, and then the display content is transmitted to the display screen of the vehicle through the WIFI router or the hotspot and is displayed on the display screen of the vehicle. Under a vehicle-mounted environment, if the mobile phone plays a network video and simultaneously plays a screen, bidirectional big data transmission can exist between the WIFI router or a hotspot and the mobile phone, the video playing is easy to be blocked, even the video cannot be played, the screen playing process of the conventional screen playing system is shown in fig. 7, and at the moment, bidirectional big data transmission simultaneously exists between the vehicle machine and the mobile phone. In view of the above problem, fig. 8 is a schematic view of a screen projection process of a screen projection system in an embodiment of the present invention, where a solid arrow represents wired transmission, a dotted arrow represents wireless transmission, and the screen projection process is as follows:
1) acquiring a program stream from a video website through tools such as a special application program installed on a mobile phone, and displaying the program stream in a form of an on-demand menu;
2) when a user is interested in a certain video, the user can carry out on-demand operation, the mobile phone sends an on-demand command at the moment, the on-demand command is received by the vehicle machine, the video stream of the corresponding program is obtained from a video website, and then the video frame is transmitted to the display screen of the vehicle machine for displaying through WIFI.
Here, from the viewpoint of cost and display effect, preferably, wired transmission is adopted between the car machine and the display screen, so that a WIFI module is omitted on the display screen, the transmission rate is improved, and the data transmission quality is better. It can be found that, in the screen projecting process of the screen projecting system of the embodiment, only a small amount of data interaction exists between the mobile phone and the vehicle, and video stream transmission is not needed between the mobile phone and the vehicle, so that the problem of bidirectional video stream transmission existing in the existing scheme is avoided, and the problem that the transmission speed is slow due to bidirectional video stream transmission, and further the influence on the playing effect is caused can be avoided.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
As used herein, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, including not only those elements listed, but also other elements not expressly listed.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (10)
1. A screen projection method, comprising:
the mobile terminal responds to screen projection operation of the network file and acquires address information of the network file;
and the mobile terminal sends a screen projection instruction carrying the address information of the network file to the vehicle-mounted terminal.
2. The screen projection method according to claim 1, wherein before the mobile terminal sends the screen projection instruction carrying the address information of the network file to the vehicle-mounted terminal, the method further comprises:
and the mobile terminal and the vehicle-mounted terminal establish communication connection through WIFI provided by the vehicle-mounted terminal.
3. The screen projecting method according to claim 2, wherein the vehicle-mounted terminal comprises a vehicle-mounted device and a vehicle-mounted T-BOX, and the step of sending the screen projecting instruction carrying the address information of the network file to the vehicle-mounted terminal by the mobile terminal comprises:
and the mobile terminal sends a screen projection instruction carrying the address information of the network file to the vehicle-mounted T-BOX so as to request the vehicle-mounted T-BOX to acquire the corresponding network file according to the address information of the network file and send the network file to the vehicle machine.
4. The screen projection method according to any one of claims 1 to 3, wherein the network file comprises a network video file and/or a network audio file.
5. A screen projection method, comprising:
the method comprises the steps that a vehicle-mounted terminal receives a screen projection instruction which is sent by a mobile terminal and carries address information of a network file;
the vehicle-mounted terminal responds to the screen projection instruction and acquires a corresponding network file according to the address information of the network file;
and the vehicle-mounted terminal executes screen projection operation on the network file.
6. The screen projecting method according to claim 5, wherein the vehicle-mounted terminal comprises a vehicle-mounted machine and a vehicle-mounted T-BOX; wherein,
the vehicle-mounted T-BOX receives a screen projection instruction which is sent by a mobile terminal and carries address information of a network file, acquires a corresponding network file according to the address information of the network file, and sends the network file to the vehicle machine;
and the vehicle machine receives the network file sent by the vehicle-mounted T-BOX and displays the network file on a display screen.
7. The screen projection method according to claim 5 or 6, wherein the network file comprises a network video file and/or a network audio file.
8. A screen projection apparatus, comprising: a processor and a memory storing a computer program which, when executed by the processor, implements the screen projection method of any one of claims 1 to 7.
9. A computer storage medium, in which a computer program is stored, which, when executed by a processor, implements the screen projection method of any one of claims 1 to 7.
10. A screen projection system, comprising: a mobile terminal and a vehicle-mounted terminal; wherein,
the mobile terminal is used for responding to screen projection operation of a network file, acquiring address information of the network file and sending a screen projection instruction carrying the address information of the network file to the vehicle-mounted terminal;
the vehicle-mounted terminal is used for receiving the screen projection instruction sent by the mobile terminal, acquiring a corresponding network file according to the address information of the network file, and executing screen projection operation on the network file.
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| CN201910623535.7A CN112218151A (en) | 2019-07-11 | 2019-07-11 | Screen projection method, device, computer storage medium and system |
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| CN201910623535.7A CN112218151A (en) | 2019-07-11 | 2019-07-11 | Screen projection method, device, computer storage medium and system |
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Address after: Room 208, building 4, 1411 Yecheng Road, Jiading District, Shanghai, 201821 Applicant after: Botai vehicle networking technology (Shanghai) Co.,Ltd. Address before: Room 208, building 4, 1411 Yecheng Road, Jiading District, Shanghai, 201821 Applicant before: SHANGHAI PATEO ELECTRONIC EQUIPMENT MANUFACTURING Co.,Ltd. |
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