CN113691849A - Screen projection control method and device, terminal equipment and storage medium - Google Patents
Screen projection control method and device, terminal equipment and storage medium Download PDFInfo
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- 230000014759 maintenance of location Effects 0.000 claims description 9
- 238000005266 casting Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000004590 computer program Methods 0.000 description 4
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000007547 defect Effects 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
- H04N21/4302—Content synchronisation processes, e.g. decoder synchronisation
- H04N21/4307—Synchronising the rendering of multiple content streams or additional data on devices, e.g. synchronisation of audio on a mobile phone with the video output on the TV screen
- H04N21/43076—Synchronising the rendering of multiple content streams or additional data on devices, e.g. synchronisation of audio on a mobile phone with the video output on the TV screen of the same content streams on multiple devices, e.g. when family members are watching the same movie on different devices
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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
- H04N21/441—Acquiring end-user identification, e.g. using personal code sent by the remote control or by inserting a card
- H04N21/4415—Acquiring end-user identification, e.g. using personal code sent by the remote control or by inserting a card using biometric characteristics of the user, e.g. by voice recognition or fingerprint scanning
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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
- H04N21/442—Monitoring of processes or resources, e.g. detecting the failure of a recording device, monitoring the downstream bandwidth, the number of times a movie has been viewed, the storage space available from the internal hard disk
- H04N21/44213—Monitoring of end-user related data
- H04N21/44218—Detecting physical presence or behaviour of the user, e.g. using sensors to detect if the user is leaving the room or changes his face expression during a TV program
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Abstract
The invention discloses a screen projection control method, a screen projection control device, terminal equipment and a storage medium, wherein the method comprises the following steps: acquiring a screen projection instruction, and acquiring a user image according to the screen projection instruction; determining screen projection authority corresponding to the user image according to the user image; and carrying out screen projection control according to the screen projection authority and the user image. The invention can control the screen projection based on the user image so as to provide a safer and more private screen projection mode.
Description
Technical Field
The invention relates to the technical field of screen projection, in particular to a screen projection control method and device, terminal equipment and a storage medium.
Background
With the development of terminal devices, terminal devices (such as mobile terminals like mobile phones and tablet computers) have become an indispensable part of people's daily life. At present, terminal equipment basically has a mirror image screen projection function, but in the prior art, information leakage is easily caused in the screen projection process, user privacy protection is ignored, for example, a user projects the content in a mobile phone to a television for display in a meeting room, then leaves a meeting room (such as going to a toilet) for some reason, forgets to close the screen projection on the mobile phone, and at this time, other people can synchronously see the operation of the mobile phone of the user on the television, so that information leakage is easily caused.
Thus, there is a need for improvements and enhancements in the art.
Disclosure of Invention
The technical problem to be solved by the present invention is to provide a screen projection control method, device, terminal device and storage medium for solving the above-mentioned defects in the prior art, and to solve the problem that information is easily leaked in the screen projection process in the prior art.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
in a first aspect, the present invention provides a screen projection control method, wherein the method includes:
acquiring a screen projection instruction, and acquiring a user image according to the screen projection instruction;
determining screen projection authority corresponding to the user image according to the user image;
and carrying out screen projection control according to the screen projection authority and the user image.
In one implementation, the obtaining a screen projection instruction and obtaining a user image according to the screen projection instruction includes:
acquiring the screen projection instruction, and starting a preset image acquisition device according to the screen projection instruction;
and carrying out image acquisition on the user through the image acquisition device to obtain the user image.
In one implementation, the determining, according to the user image, a screen-projection right corresponding to the user image includes:
acquiring behavior characteristics in the user image;
and determining screen projection permission corresponding to the user image according to the behavior characteristics.
In one implementation, the determining, according to the behavior feature, a screen-projection permission corresponding to the user image includes:
matching the behavior characteristics with a specified behavior;
and if the behavior characteristics are successfully matched with the specified behaviors, determining that the screen projection authority is the screen projection authority.
In one implementation, the performing screen projection control with the user image according to the screen projection authority includes:
when the screen projection authority is right, determining that the screen projection authority is right
The dwell time of the user image outside the acquisition range of the image acquisition device;
and performing screen projection control according to the retention time.
In one implementation, the screen projection control according to the stay time includes:
if the retention time exceeds the preset time, acquiring a screen projection state;
and if the screen projection state is that the screen projection is not stopped, stopping the screen projection and playing the preset picture.
In one implementation, the screen projection control according to the stay time includes:
and if the staying time does not exceed the preset time, continuing to project the screen.
In a second aspect, an embodiment of the present invention further provides a screen projection control device, where the device includes:
the image acquisition module is used for acquiring a screen projection instruction and acquiring a user image according to the screen projection instruction;
the permission determining module is used for determining screen projection permission corresponding to the user image according to the user image;
and the screen projection control module is used for carrying out screen projection control on the user image according to the screen projection permission.
In a third aspect, an embodiment of the present invention further provides a terminal device, where the terminal device includes a memory, a processor, and a screen projection control program that is stored in the memory and is executable on the processor, and when the processor executes the screen projection control program, the steps of the screen projection control method in any one of the above schemes are implemented.
In a fourth aspect, an embodiment of the present invention further provides a computer-readable storage medium, where a screen projection control program is stored on the computer-readable storage medium, and when the screen projection control program is executed by a processor, the steps of the screen projection control method according to any one of the above schemes are implemented.
Has the advantages that: compared with the prior art, the invention provides a screen projection control method, which comprises the steps of firstly obtaining a screen projection instruction, and obtaining a user image according to the screen projection instruction; then, according to the user image, screen projection permission corresponding to the user image is determined; and then, screen projection control is carried out according to the screen projection authority and the user image. The screen projection method and the screen projection device can control screen projection based on the user image acquired in real time, and because the user image is acquired in real time, when the acquired user image changes, for example, the user leaves to cause user image loss, the screen projection can be controlled, for example, the screen projection is closed, so that the privacy information of the user can be protected from being leaked, and convenience is provided for the user to use.
Drawings
Fig. 1 is a flowchart of a detailed implementation of a screen projection control method according to an embodiment of the present invention.
Fig. 2 is a schematic block diagram of a screen projection control device according to an embodiment of the present invention.
Fig. 3 is a schematic block diagram of an internal structure of a terminal device according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and effects of the present invention clearer and clearer, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The embodiment provides a screen projection control method, which is implemented specifically, in the embodiment, a screen projection instruction is firstly obtained, and a user image is obtained according to the screen projection instruction; then, according to the user image, screen projection permission corresponding to the user image is determined; and then, screen projection control is carried out according to the screen projection authority and the user image. The screen projection method and the screen projection device can control screen projection based on the user image acquired in real time, and because the user image is acquired in real time, when the acquired user image changes, for example, the user leaves to cause user image loss, the screen projection can be controlled, for example, the screen projection is closed, so that the privacy information of the user can be protected from being leaked, and convenience is provided for the user to use.
For example, when a user uses a mobile phone to screen a conference content onto a television in a conference room, the television receives a screen projection instruction, starts to acquire a user image according to the screen projection instruction, performs screen projection permission verification based on the user image, and determines the screen projection permission of the user, that is, determines whether the user can screen the conference content onto the television. After the screen projection authority is determined, the television can acquire the user image in real time, and then control screen projection based on the user image acquired in real time. For example, when the television does not acquire the user image within a period of time, it indicates that the user has left the conference room at this time, and at this time, the television may stop screen projection, so as to protect the privacy information of the user from being leaked.
Exemplary method
The screen projection control method in this embodiment can be applied to terminal equipment, which is a product terminal capable of receiving data sent by other terminals for screen projection display, such as a television, a computer, and the like. Specifically, as shown in fig. 1, the screen projection control method in the present embodiment includes the following steps:
and S100, acquiring a screen projection instruction, and acquiring a user image according to the screen projection instruction.
In this embodiment, when the terminal device needs to perform screen projection display on data sent by another terminal, the terminal device receives a screen projection instruction, where the screen projection instruction may include data to be screen projected and device information of a data sending end (e.g., a mobile phone). In order to protect the privacy information of the user and guarantee the information security, the terminal device of the embodiment starts to acquire the user image after receiving the screen projection instruction, so as to determine whether the user has the authority to project the data to the terminal device based on the image.
In one implementation manner, when acquiring the user image, the present embodiment may perform the following steps:
s101, acquiring the screen projection instruction, and starting a preset image acquisition device according to the screen projection instruction;
and S102, carrying out image acquisition on a user through the image acquisition device to obtain the user image.
In specific implementation, in this embodiment, the same wireless router is connected between the terminal device and the screen projection data sending end, that is, the two devices are connected to the same local area network. For example, the mobile phone is a screen projection data sending terminal, and the television is a terminal device (i.e., a terminal that receives the screen projection data and performs screen projection display), so that the mobile phone and the television need to be connected to the same local area network, and the mobile phone can project the data onto the television for display. After the terminal device obtains the screen projection instruction, the terminal device of the embodiment can start to obtain the user image according to the screen projection instruction. In an implementation manner, an image acquisition device, such as a camera, is preset on the terminal device, so that the terminal device can acquire an image of a user through the image acquisition device to obtain the user image. In a specific application, the user image acquired by the image acquisition device can be a user face image, so that the screen projection authority of the user can be judged in the subsequent steps based on the user face image.
In another implementation manner, a privacy protection mode may also be preset in the terminal device in this embodiment, where the privacy protection mode is used to protect information security of the data sending end when the terminal device performs screen projection display. After receiving the screen projection instruction, the terminal equipment prompts a user whether to start the privacy protection mode, and if the user selects to start the privacy protection mode, the image acquisition device is started, and then the user image can be acquired.
After the user image is acquired, the present embodiment may further continue to execute step S200, and determine the screen-casting permission corresponding to the user image according to the user image.
Specifically, in the embodiment, when the screen projection authority is determined, the screen projection authority is obtained by analyzing the user image, and the screen projection authority corresponding to the user image is determined through image analysis, that is, the screen projection authority of the user corresponding to the user image is determined.
In one implementation, the present embodiment includes the following steps when determining the screen-casting permission:
step S201, acquiring behavior characteristics in the user image;
and S202, determining screen projection authority corresponding to the user image according to the behavior characteristics.
In specific implementation, after the user image is acquired, behavior characteristics in the user image, such as actions made by the user in the user image, are acquired. And then determining screen projection authority corresponding to the user image based on the behavior characteristics. In an implementation manner, the behavior feature may be matched with the specified behavior, and if the behavior feature is successfully matched with the specified behavior, it is indicated that the screen-casting permission corresponding to the user image is the permission. For example, the designated behavior is a waist-crossing behavior, so after the behavior feature is extracted from the user image, the behavior feature is matched with the waist-crossing behavior to determine whether the user in the user image performs the waist-crossing behavior, and if so, it can be determined that the user corresponding to the user image has the screen-casting permission. And if the behavior characteristics in the user image are not matched with the specified behaviors, the authority corresponding to the user image is not authorized.
In an implementation manner, if the user image is a face image of a user, when determining the screen-casting right of the user image, the screen-casting right is implemented based on face recognition, and the face image is directly recognized, so that the screen-casting right of the user is determined. In this embodiment, when the screen-casting permission is judged to be right, user identity information can be further acquired, and then the user identity information is bound with the terminal device, so that the identity information of the user does not need to be repeatedly confirmed in the following process. According to the screen projection method and the screen projection system, the screen projection permission of the user is controlled, the identity of the user who projects screen data is ensured, and the situation that the user who does not have the permission projects the screen data to the terminal device to cause the leakage of privacy information is avoided.
After determining the screen-projecting authority of the user corresponding to the user image, the embodiment further performs step S300, and performs screen-projecting control according to the screen-projecting authority and the user image.
In order to ensure that the information of the user cannot be leaked, in this embodiment, after the screen projection permission is determined, the terminal device continues to acquire the user image in real time, and then screen projection control is performed according to the user image. Because the user image is acquired in real time, when the acquired user image changes, for example, the user leaves and the user image is lost, the screen projection can be controlled, for example, the screen projection is closed, so that the privacy information of the user can be protected from being leaked, and convenience is provided for the user to use.
In one implementation, the present embodiment, when performing the screen projection control, includes the following steps:
s301, when the screen projection authority is right, determining the staying time of the user image outside the acquisition range of the image acquisition device;
and S302, performing screen projection control according to the staying time.
In this embodiment, when the screen-casting permission is right, the terminal device of this embodiment may continue to acquire the user image in real time through the camera, where the user image is the same as the user image acquired in the above step. The camera on the terminal equipment can continuously acquire the user image all the time, and whether a time period in which the user image is not acquired exists is determined. If the terminal device does not acquire the user image within a certain period of time, and the user image within the period of time is missing, it indicates that the user leaves the acquisition range of the camera of the terminal device at this time, and therefore, in order to protect the information of the user, the terminal device of this embodiment controls screen projection.
In an implementation manner, the terminal device in this embodiment obtains a staying time of the user image outside an acquisition range of the image acquisition device, that is, a time during which the user image is not acquired in the terminal device, and then performs screen projection control according to the obtained staying time. Specifically, in this embodiment, if the retention time exceeds a preset time, the screen projection state is obtained; and if the screen projection state is that the screen projection is not stopped, stopping the screen projection and playing the preset picture. For example, when the retention time exceeds one minute, it indicates that the user leaves the acquisition range of the camera of the terminal device, so that whether screen projection is finished or not is obtained, and if not, it indicates that the user only leaves temporarily, so as to avoid that the user continues to use the mobile phone, so that information of the mobile phone is projected to the television for display, and privacy information is leaked, the television of the embodiment stops screen projection, and then plays a preset image, thereby protecting the user information. Certainly, the terminal device in this embodiment collects the user image in real time after the preset image is played, and stops playing the preset image and performs screen projection if the user image is collected again. Of course, if the staying time does not exceed the preset time, it indicates that the user does not leave the acquisition range of the camera of the terminal device for a long time, and therefore the user continues to shoot the screen.
In summary, in the present embodiment, a screen projection instruction is first obtained, and a user image is obtained according to the screen projection instruction; then, according to the user image, screen projection permission corresponding to the user image is determined; and then, screen projection control is carried out according to the screen projection authority and the user image. The screen projection can be controlled based on the user image acquired in real time, and the user image is acquired in real time, so that the screen projection can be controlled, for example, the screen projection is closed when the acquired user image changes, and the user image is lost when the user leaves, so that the screen projection can be automatically closed when the user leaves, the privacy information of the user is protected from being leaked, and convenience is brought to the use of the user.
Exemplary devices
Based on the above embodiment, the present invention further provides a screen projection control device, as shown in fig. 2, the device including: the system comprises an image acquisition module 10, an authority determination module 20 and a screen projection control module 30. Specifically, the image obtaining module 10 is configured to obtain a screen projection instruction, and obtain a user image according to the screen projection instruction. The permission determining module 20 is configured to determine, according to the user image, a screen-casting permission corresponding to the user image. And the screen projection control module 30 is configured to perform screen projection control on the user image according to the screen projection permission.
In one implementation, the image acquisition module 10 includes:
the image acquisition device starting unit is used for acquiring the screen projection instruction and starting a preset image acquisition device according to the screen projection instruction;
and the user image acquisition unit is used for acquiring images of a user through the image acquisition device to obtain the user image.
In one implementation, the permission determination module 20 includes:
a behavior feature acquiring unit, configured to acquire a behavior feature in the user image;
and the screen projection permission determining unit is used for determining the screen projection permission corresponding to the user image according to the behavior characteristics.
In one implementation, the screen-throwing permission determining unit includes:
the behavior matching subunit is used for matching the behavior characteristics with the specified behaviors;
and the screen projection permission determining subunit is used for determining that the screen projection permission is the screen projection permission if the behavior characteristics are successfully matched with the specified behaviors.
In one implementation, the screen projection control module 30 includes:
the staying time determining unit is used for determining the staying time of the user image outside the acquisition range of the image acquisition device when the screen projection authority is right;
and the screen projection control unit is used for carrying out screen projection control according to the retention time.
In one implementation, the screen projection control unit includes:
a screen projection state obtaining subunit, configured to obtain a screen projection state if the retention time exceeds a preset time;
and the picture playing subunit is used for stopping screen projection and playing the preset picture if the screen projection state is that the screen projection is not stopped.
In one implementation, the screen projection control unit further includes:
and the screen continuous projection subunit is used for continuing to project the screen if the retention time does not exceed the preset time.
Based on the above embodiments, the present invention further provides a terminal device, and a schematic block diagram thereof may be as shown in fig. 3. The terminal equipment comprises a processor, a memory, a network interface, a display screen and a temperature sensor which are connected through a system bus. Wherein the processor of the terminal device is configured to provide computing and control capabilities. The memory of the terminal equipment comprises a nonvolatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of an operating system and computer programs in the non-volatile storage medium. The network interface of the terminal device is used for connecting and communicating with an external terminal through a network. The computer program is executed by a processor to implement a screen projection control method. The display screen of the terminal equipment can be a liquid crystal display screen or an electronic ink display screen, and the temperature sensor of the terminal equipment is arranged in the terminal equipment in advance and used for detecting the operating temperature of the internal equipment.
It will be understood by those skilled in the art that the block diagram shown in fig. 3 is only a block diagram of a part of the structure related to the solution of the present invention, and does not constitute a limitation to the terminal device to which the solution of the present invention is applied, and a specific terminal device may include more or less components than those shown in the figure, or may combine some components, or have different arrangements of components.
In one embodiment, a terminal device is provided, where the terminal device includes a memory, a processor, and a screen projection control program stored in the memory and executable on the processor, and when the processor executes the screen projection control program, the following operation instructions are implemented:
acquiring a screen projection instruction, and acquiring a user image according to the screen projection instruction;
determining screen projection authority corresponding to the user image according to the user image;
and carrying out screen projection control according to the screen projection authority and the user image.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, storage, databases, or other media used in embodiments provided herein may include non-volatile and/or volatile memory. Non-volatile memory can include read-only memory (ROM), Programmable ROM (PROM), Electrically Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDRSDRAM), Enhanced SDRAM (ESDRAM), Synchronous Link DRAM (SLDRAM), Rambus Direct RAM (RDRAM), direct bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).
In summary, the invention discloses a screen projection control method, a screen projection control device, a terminal device and a storage medium, wherein the method comprises the following steps: acquiring a screen projection instruction, and acquiring a user image according to the screen projection instruction; determining screen projection authority corresponding to the user image according to the user image; and carrying out screen projection control according to the screen projection authority and the user image. The invention can control the screen projection based on the user image so as to provide a safer and more private screen projection mode.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A screen projection control method is characterized by comprising the following steps:
acquiring a screen projection instruction, and acquiring a user image according to the screen projection instruction;
determining screen projection authority corresponding to the user image according to the user image;
and carrying out screen projection control according to the screen projection authority and the user image.
2. The screen projection control method of claim 1, wherein the obtaining of the screen projection instruction and the obtaining of the user image according to the screen projection instruction comprise:
acquiring the screen projection instruction, and starting a preset image acquisition device according to the screen projection instruction;
and carrying out image acquisition on the user through the image acquisition device to obtain the user image.
3. The screen projection control method according to claim 1, wherein the determining, according to the user image, the screen projection authority corresponding to the user image includes:
acquiring behavior characteristics in the user image;
and determining screen projection permission corresponding to the user image according to the behavior characteristics.
4. The screen projection control method of claim 3, wherein the determining the screen projection authority corresponding to the user image according to the behavior characteristics comprises:
matching the behavior characteristics with a specified behavior;
and if the behavior characteristics are successfully matched with the specified behaviors, determining that the screen projection authority is the screen projection authority.
5. The screen projection control method according to claim 1, wherein the screen projection control with the user image according to the screen projection authority includes:
when the screen projection authority is right, determining and acquiring the staying time of the user image outside the acquisition range of the image acquisition device;
and performing screen projection control according to the retention time.
6. The screen projection control method according to claim 5, wherein the screen projection control according to the stay time includes:
if the retention time exceeds the preset time, acquiring a screen projection state;
and if the screen projection state is that the screen projection is not stopped, stopping the screen projection and playing the preset picture.
7. The screen projection control method according to claim 5, wherein the screen projection control according to the stay time includes:
and if the staying time does not exceed the preset time, continuing to project the screen.
8. A screen projection control apparatus, comprising:
the image acquisition module is used for acquiring a screen projection instruction and acquiring a user image according to the screen projection instruction;
the permission determining module is used for determining screen projection permission corresponding to the user image according to the user image;
and the screen projection control module is used for carrying out screen projection control on the user image according to the screen projection permission.
9. A terminal device, characterized in that the terminal device comprises a memory, a processor and a screen projection control program stored in the memory and operable on the processor, and the processor implements the steps of the screen projection control method according to any one of claims 1 to 7 when executing the screen projection control program.
10. A computer-readable storage medium, having a screen projection control program stored thereon, which, when executed by a processor, implements the steps of the screen projection control method according to any one of claims 1 to 7.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023124699A1 (en) * | 2021-12-27 | 2023-07-06 | 深圳市倍思科技有限公司 | Control method, apparatus, screen projection device, and storage medium |
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2021
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Application publication date: 20211123 |