CN113225431A - Display screen control method and device and storage medium - Google Patents

Display screen control method and device and storage medium Download PDF

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Publication number
CN113225431A
CN113225431A CN202010053786.9A CN202010053786A CN113225431A CN 113225431 A CN113225431 A CN 113225431A CN 202010053786 A CN202010053786 A CN 202010053786A CN 113225431 A CN113225431 A CN 113225431A
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China
Prior art keywords
display screen
mobile terminal
target user
set range
application programs
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Granted
Application number
CN202010053786.9A
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Chinese (zh)
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CN113225431B (en
Inventor
彭聪
高文俊
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Beijing Xiaomi Mobile Software Co Ltd
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Beijing Xiaomi Mobile Software Co Ltd
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Priority to CN202010053786.9A priority Critical patent/CN113225431B/en
Publication of CN113225431A publication Critical patent/CN113225431A/en
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
    • G01S13/04—Systems determining presence of a target
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
    • G01S7/41—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00 using analysis of echo signal for target characterisation; Target signature; Target cross-section
    • G01S7/411—Identification of targets based on measurements of radar reflectivity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/66—Substation equipment, e.g. for use by subscribers with means for preventing unauthorised or fraudulent calling
    • H04M1/667—Preventing unauthorised calls from a telephone set
    • H04M1/67—Preventing unauthorised calls from a telephone set by electronic means
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/66—Substation equipment, e.g. for use by subscribers with means for preventing unauthorised or fraudulent calling
    • H04M1/667—Preventing unauthorised calls from a telephone set
    • H04M1/67—Preventing unauthorised calls from a telephone set by electronic means
    • H04M1/673—Preventing unauthorised calls from a telephone set by electronic means the user being required to key in a code
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0251—Power saving arrangements in terminal devices using monitoring of local events, e.g. events related to user activity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0261—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level
    • H04W52/0264—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level by selectively disabling software applications
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

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  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Telephone Function (AREA)

Abstract

The disclosure relates to a display screen control method, a display screen control device and a storage medium. The method comprises the following steps: when a display screen of the mobile terminal is in a working state, transmitting radar waves and detecting echoes of the radar waves; determining whether a target user exists in a set range of the mobile terminal according to the transmitting parameters of the radar waves and the echo parameters of the echo; and if the target user does not exist in the set range, turning off and locking the display screen. According to the method and the device, when the display screen of the mobile terminal is in a working state, the radar wave is transmitted and the echo of the radar wave is detected, and then when it is determined that no target user exists in the set range of the mobile terminal according to the transmitting parameter of the radar wave and the echo parameter of the echo, the display screen of the mobile terminal is extinguished and locked. On one hand, by turning off the display screen, the power consumption of the mobile terminal can be reduced; on the other hand, the risk of privacy disclosure of the user can be reduced by locking the display screen of the mobile terminal.

Description

Display screen control method and device and storage medium
Technical Field
The present disclosure relates to the field of computer communications, and in particular, to a method and an apparatus for controlling a display screen, and a storage medium.
Background
With the continuous development of electronic technology, the functions of electronic products are more and more abundant, and at present, most of electronic products have display screens. Taking the electronic device as a mobile phone, the user can view multimedia information, such as video or live broadcast, through a display screen included in the mobile phone.
In the process that a user watches multimedia information by using a display screen included in the electronic equipment, if the user leaves the electronic equipment midway, the display screen of the electronic equipment is still in an unlocked and lightened state, and at the moment, extra power consumption is generated, and the risk of privacy disclosure of the user is increased.
Disclosure of Invention
The disclosure provides a display screen control method, a display screen control device and a storage medium.
According to a first aspect of the embodiments of the present disclosure, there is provided a method for controlling a display screen, where the method is applied to a mobile terminal, and includes:
when a display screen of the mobile terminal is in a working state, transmitting radar waves and detecting echoes of the radar waves;
determining whether a target user exists in a set range of the mobile terminal according to the transmitting parameters of the radar waves and the echo parameters of the echoes;
and if the target user does not exist in the set range, turning off and locking the display screen.
Optionally, the working state includes: the display screen is outputting multimedia information.
Optionally, the method further includes:
after the display screen is turned off, continuing to emit the radar waves and detecting echoes of the radar waves;
determining whether the target user exists in the set range according to the transmitting parameters of the radar waves and the echo parameters of the echoes;
if the target user exists in the set range, switching the display screen from a turning-off state to a turning-on state;
and after the display screen is in the lighting state, outputting an unlocking prompt through the display screen.
Optionally, the method further includes:
detecting an unlocking instruction input for the unlocking prompt;
and when the unlocking instruction is detected, unlocking the display screen based on the unlocking instruction.
Optionally, the method further includes:
and if the target user does not exist in the set range, closing part or all of the application programs running in the mobile terminal.
Optionally, if the target user does not exist in the setting range, closing part or all of the application programs run by the mobile terminal includes:
if the target user does not exist in the set range, detecting the number of the application programs operated in the mobile terminal;
when the number of the application programs running in the mobile terminal is larger than the set number threshold, closing one or more running application programs;
after one or more application programs are closed, the number of the application programs running in the mobile terminal is smaller than or equal to the set number threshold.
Optionally, when the number of the application programs running in the mobile terminal is greater than the set number threshold, closing one or more running application programs, including:
when the number of the application programs operated in the mobile terminal is larger than the set number threshold, determining the power consumption generated by operating each application program;
and closing one or more application programs with the power consumption larger than a set power consumption threshold.
Optionally, the determining whether a target user exists in a setting range of the mobile terminal according to the transmitting parameter of the radar wave and the echo parameter of the echo includes:
determining the contour information of each object in the set range according to the transmitting parameters of the radar waves and the echo parameters of the echoes;
matching the contour information of each object with the contour information of a target user;
if the matching is successful, determining that the target user exists in the set range;
and if the matching fails, determining that the target user does not exist in the set range.
According to a second aspect of the embodiments of the present disclosure, there is provided a control apparatus for a display screen, the apparatus being applied to a mobile terminal, including:
the mobile terminal comprises a first transmitting module, a second transmitting module and a control module, wherein the first transmitting module is configured to transmit radar waves and detect echoes of the radar waves when a display screen of the mobile terminal is in a working state;
the first determining module is configured to determine whether a target user exists in a set range of the mobile terminal according to the transmitting parameter of the radar wave and the echo parameter of the echo;
and the control module is configured to extinguish and lock the display screen if the target user does not exist in the set range.
Optionally, the working state includes: the display screen is outputting multimedia information.
Optionally, the apparatus further comprises:
the second transmitting module is configured to continue to transmit the radar waves and detect echoes of the radar waves after the display screen is extinguished;
the second determination module is configured to determine whether the target user exists in the set range according to the emission parameters of the radar waves and the echo parameters of the echo;
the switching module is configured to switch the display screen from a turning-off state to a turning-on state if the target user exists in the set range;
and the output module is configured to output an unlocking prompt through the display screen after the display screen is in the lighting state.
Optionally, the apparatus further comprises:
a detection module configured to detect an unlocking instruction input for the unlocking prompt;
and the unlocking module is configured to unlock the display screen based on the unlocking instruction when the unlocking instruction is detected.
Optionally, the apparatus further comprises:
and the control module is configured to close part or all of the application programs running in the mobile terminal if the target user does not exist in the set range.
Optionally, the control module is further configured to:
if the target user does not exist in the set range, detecting the number of the application programs operated in the mobile terminal;
when the number of the application programs running in the mobile terminal is larger than the set number threshold, closing one or more running application programs;
after one or more application programs are closed, the number of the application programs running in the mobile terminal is smaller than or equal to the set number threshold.
Optionally, the control module is further configured to:
when the number of the application programs operated in the mobile terminal is larger than the set number threshold, determining the power consumption generated by operating each application program;
and closing one or more application programs with the power consumption larger than a set power consumption threshold.
Optionally, the first determining module is further configured to:
determining the contour information of each object in the set range according to the transmitting parameters of the radar waves and the echo parameters of the echoes;
matching the contour information of each object with the contour information of a target user;
if the matching is successful, determining that the target user exists in the set range;
and if the matching fails, determining that the target user does not exist in the set range.
According to a third aspect of the embodiments of the present disclosure, there is provided a control device of a display screen, including:
a processor;
a memory configured to store processor-executable instructions;
wherein the processor is configured to: the steps in the method for controlling a display screen according to the first aspect are implemented when executed.
According to a fourth aspect of embodiments of the present disclosure, there is provided a non-transitory computer-readable storage medium, wherein instructions, when executed by a processor of a device for controlling a display screen, enable the device to perform the steps of the method for controlling a display screen of the first aspect.
The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects:
according to the technical scheme, when the display screen of the mobile terminal is in a working state, the display screen of the mobile terminal can be extinguished and locked by transmitting the radar waves and detecting the echoes of the radar waves and then determining that no target user exists in the set range of the mobile terminal according to the transmitting parameters of the radar waves and the echo parameters of the echoes. On one hand, by turning off the display screen, the power consumption of the mobile terminal can be reduced; on the other hand, by extinguishing and locking the display screen of the mobile terminal, the risk of privacy disclosure of the user can be reduced.
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 disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.
Fig. 1 is a first flowchart illustrating a method of controlling a display screen according to an exemplary embodiment.
FIG. 2 is a schematic diagram of a handset including a radar component, shown in accordance with an example embodiment.
Fig. 3 is a flowchart two illustrating a video generation method according to an exemplary embodiment.
Fig. 4 is a diagram illustrating an example of the transmission of radar waves in accordance with an example embodiment.
Fig. 5 is a block diagram illustrating a control device for a display screen according to an exemplary embodiment.
Fig. 6 is a block diagram illustrating a hardware configuration of a control apparatus of a display screen according to an exemplary embodiment.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.
Fig. 1 is a flowchart illustrating a control method of a display screen according to an exemplary embodiment, where the method is applied to a mobile terminal, as shown in fig. 1, and includes the following steps:
in step 101, when a display screen of a mobile terminal is in a working state, transmitting radar waves and detecting echoes of the radar waves;
in step 102, determining whether a target user exists in a set range of the mobile terminal according to the transmitting parameter of the radar wave and the echo parameter of the echo;
in step 103, if no target user exists within the set range, the display screen is extinguished and locked.
In other alternative embodiments, the operating state includes: the display screen is outputting multimedia information.
Here, the mobile terminal may be an electronic device including a display screen, for example, a smartphone, a notebook computer, a tablet computer, or a wearable electronic device. The multimedia information includes video information, text information, image information, and the like. Such as the user being engaged in a video call or watching a video through playback software.
In the embodiment of the disclosure, a radar component is further installed in the mobile terminal, and the radar component comprises a transmitter and a receiver, wherein the transmitter is used for transmitting radar waves, and the receiver is used for receiving echoes of the radar waves. Fig. 2 is a schematic diagram of a mobile phone including a radar component according to an exemplary embodiment, and as shown in fig. 2, two radar components may be disposed on a mobile terminal 200, such as a front radar component 201 installed on the mobile terminal 200 on the same side as a display screen and a rear radar component 202 installed on the mobile terminal 200 on a side opposite to the display screen.
In other alternative embodiments, the radar assembly disposed in the mobile terminal may also change direction based on the actuation of the rotating assembly in the mobile terminal. For example, the front radar component faces one side of the display screen based on the driving of the rotating component; or, based on the driving of the rotating assembly, the radar assembly is enabled to emit radar waves towards the set direction.
In the embodiment of the disclosure, radar waves can be transmitted to a set range based on a radar component, and after the radar waves are transmitted, if a target user exists in the transmission process of the radar waves, the target user receives and reflects a part of the radar waves. Therefore, whether the target user exists or not is judged by receiving the echo parameter of the echo through the receiver of the radar component. After receiving the echo parameters, the profile information of each object located on the transmission path of the radar wave may be obtained based on the received echo parameters and the transmission parameters of the radar wave, and then whether a target user exists in each object may be determined based on the profile information.
The setting range may be set according to a requirement, for example, the setting range may be a range covered by a circle with the mobile terminal as a center and the preset distance threshold as a radius. Taking the preset distance threshold as 50 cm as an example, a range covered by a circle with a radius of 50 cm may be determined as a set range, and thus, when the distance between the target user and the mobile terminal is less than or equal to 50 cm, it is determined that the target user is within the set range; and when the distance between the target user and the mobile terminal is more than 50 cm, determining that the target user is out of the set range. In other alternative embodiments, the preset distance threshold may be set as desired, for example, 30 centimeters, 50 centimeters, 70 centimeters, 1 meter, etc.
In the embodiment of the disclosure, when multimedia information is output based on a display screen of a mobile terminal, the display screen of the mobile terminal can be extinguished and locked when it is determined that no target user exists in a set range of the mobile terminal according to the transmitting parameters of the radar wave and the echo parameters of the echo by transmitting the radar wave and detecting the echo of the radar wave. On one hand, by turning off the display screen, the power consumption of the mobile terminal can be reduced; on the other hand, the risk of privacy disclosure of the user can be reduced by locking the display screen of the mobile terminal.
In other optional embodiments, the method further comprises:
after the display screen is turned off, continuing to emit radar waves and detecting echoes of the radar waves;
determining whether a target user exists in a set range or not according to the transmitting parameters of the radar waves and the echo parameters of the echoes;
if the target user exists in the set range, switching the display screen from a turning-off state to a turning-on state;
and after the display screen is in a lighting state, outputting an unlocking prompt through the display screen.
It should be noted that, after determining that there is no target user in the setting range based on the transmitting parameter and the echo parameter of the radar wave, the display screen may be turned off, then the radar wave is continuously transmitted and the echo of the radar wave is detected, and whether the target user enters the setting range again is further determined, and when the target user enters the setting range again, the display screen is switched from the off state to the on state, so as to realize the automatic lighting of the display screen; and an unlocking prompt is output based on the display screen to prompt the target user to unlock the mobile terminal, and if other users enter a set range and are judged as the target user by mistake, the mobile terminal can only use or display other information because the mobile terminal needs to be unlocked, so that the risk of information leakage is reduced again.
In the embodiment of the disclosure, after the target user leaves, whether the target user returns to the set range or not can be detected, when the target user returns to the set range, the display screen can be switched from the off state to the on state in time, and the unlocking prompt is output, so that the power consumption of the mobile terminal can be reduced, the intelligence of a product can be improved on the basis of reducing the risk of privacy disclosure of the user, and the experience of the user can be further improved.
In other optional embodiments, the method further comprises:
detecting an unlocking instruction input for the unlocked prompt;
and when the unlocking instruction is detected, unlocking the display screen based on the unlocking instruction.
Here, the unlock prompt may be a pop-up box for inputting a verification code based on a display screen output, or prompt information for inputting a biometric feature including a fingerprint and/or an iris, or the like. Taking the unlocking prompt as an example of a pop-up box which is output based on a display screen and used for inputting a verification code, an unlocking instruction can be the verification code input by a target user based on the pop-up box, after the verification code input by the target user is detected by the mobile terminal, the verification code can be matched with a preset verification code, and if the matching is successful, the verification code input by the target user is determined to be correct, and then the screen is unlocked; if the matching fails, the verification code input by the target user is determined to be wrong, and an error prompt is output based on the display screen.
In the embodiment of the disclosure, when it is detected that the target user enters the set range again based on the radar wave, the unlocking prompt can be directly output based on the display screen, so that the user can conveniently input the unlocking instruction based on the unlocking prompt to unlock the mobile terminal, the process that the target user manually lights up the display screen can be omitted, and the convenience of the target user in using the mobile terminal is further improved.
In other optional embodiments, after the unlocking prompt is output, if the unlocking instruction is not detected within a predetermined time period, the display screen of the mobile terminal is switched from the on state to the off state, so as to reduce power consumption of the mobile terminal due to the fact that the display screen is turned on.
In other optional embodiments, the method further comprises:
and if the target user does not exist in the set range, closing part or all of the application programs running in the mobile terminal.
Here, although the display screen is turned off and locked when it is determined that the target user does not exist within the setting range, the application installed on the mobile terminal may still be in an operating state, and at this time, the application in the operating state may still consume traffic and may generate additional power consumption. In the embodiment of the disclosure, after it is determined that the target user does not exist in the setting range, part or all of the application programs running in the mobile terminal are also closed, so that not only can the flow be saved, but also the power consumption of the mobile terminal can be sufficiently reduced, and the standby time can be increased.
In other optional embodiments, if there is no target user in the set range, closing part or all of the applications running on the mobile terminal includes:
if the target user does not exist in the set range, detecting the number of the application programs running in the mobile terminal;
when the number of the application programs running in the mobile terminal is larger than a set number threshold, closing one or more running application programs;
after one or more application programs are closed, the number of the application programs running in the mobile terminal is smaller than or equal to a set number threshold.
It should be noted that even if the display screen is turned off and the screen is locked, some application programs in the mobile terminal are still in an operating state, and when the mobile terminal operates the application programs, power consumption may increase and system resources such as computing resources and/or storage resources of the mobile terminal may be occupied. In the embodiment of the disclosure, when it is detected that the number of the application programs running in the mobile terminal is greater than the set number threshold, one or more running application programs are closed in time, so that the number of the application programs running in the mobile terminal is less than or equal to the set number threshold, which not only can reduce the power consumption of the mobile terminal, but also can reduce the waste of system resources such as computing resources and/or storage resources in the mobile terminal.
In other optional embodiments, when the number of the applications running in the mobile terminal is greater than the set number threshold, closing one or more running applications includes:
when the number of the application programs running in the mobile terminal is larger than a set number threshold, determining the power consumption generated by running each application program;
and closing one or more application programs with power consumption larger than the set power consumption threshold.
It should be noted that, because the power consumption generated by running each application program is different, in the actual use process, the power consumption generated by running each application program may be determined first, and one or more application programs whose power consumption is greater than the set power consumption threshold may be turned off. Therefore, the application program with low power consumption can be ensured to continue to run, and the normal running of the application program on the mobile terminal can be ensured on the basis of reducing the power consumption.
In other optional embodiments, determining whether a target user exists within a setting range of the mobile terminal according to the transmission parameter of the radar wave and the echo parameter of the echo includes:
determining the contour information of each object in a set range according to the transmitting parameters of the radar waves and the echo parameters of the echoes;
matching the contour information of each object with the contour information of a target user;
if the matching is successful, determining that the target user exists in the set range;
and if the matching fails, determining that the target user does not exist in the set range.
It should be noted that, according to the emission parameters of the radar wave and the echo parameters of the echo, the contour information of each object located on the transmission path of the radar wave can be acquired. Wherein, the contour information is: the information contained in the outer edge line of each object located on the radar wave transmission path contains the topographic features of each object.
In an alternative embodiment, the contour information may be coordinate values of points on an outer edge line of the object, and the shape of each object may be determined based on the coordinate values of the points. For example, the four-wheel drive vehicle can be determined to be substantially a cuboid according to the profile information of the four-wheel drive vehicle, the basketball can be determined to be substantially a sphere according to the profile information of the basketball, and the shape and/or structural characteristics of the user can be determined to be a person according to the profile information of the user.
Here, taking the example that each object is a user, because a plurality of users may appear simultaneously in the setting range of the mobile terminal, at this time, a target user (owner) is determined from the plurality of users, in the embodiment of the present disclosure, the profile of each user may be determined according to the transmission parameter of the radar wave and the echo parameter of the echo, and the profiles corresponding to different users are different. The profile here may include: the human body outline.
In the embodiment of the disclosure, after the outer contour of each user is determined, the outer contour of each user can be matched with a preset target contour, and when the matching is successful, the target user is determined to exist in the set range; and when the matching fails, determining that no target user exists in the set range.
Here, because the mobile terminal includes the leading radar subassembly that installs on the mobile terminal with the display screen coplanar and installs the rear radar subassembly that deviates from the display screen one side on the mobile terminal, at the in-process of realizing, can obtain target user's profile based on the leading radar subassembly on the mobile terminal to with the profile storage of target user who obtains as the target profile, wherein, the target profile includes: a target user's facial contour, hair style contour, clothing contour, or ornament contour, etc.
In the embodiment of the present disclosure, profile information of a target user may be preset, when each object in a set range is detected based on a radar wave, the profile information of each object may be matched with the preset profile information, and when the matching is successful, an object corresponding to the successfully matched profile information is determined as the target user, that is, it is determined that the target user exists in the set range. Here, by acquiring the contour information of each object, it is possible to further determine whether or not a target object exists within the setting range, and it is possible to reduce the occurrence of erroneous determination.
Fig. 3 is a flow chart diagram two illustrating a video generation method according to an exemplary embodiment, as shown in fig. 3, the method including the steps of:
in step 301, a scene is detected.
Here, an application scenario in which the mobile terminal is currently located may be detected. For example, it is detected whether the mobile terminal is currently in an application scenario for video call (video call mode) or in an application scenario for player (player mode).
In step 302, the mobile terminal is in a video call mode.
Here, the user may perform a video call through an application installed on the mobile terminal, for example, a video call based on a WeChat or the like installed on the mobile terminal.
In step 303, the mobile terminal is in player mode.
Here, the user can play music through a player installed on the mobile terminal.
In step 304, it is detected whether the user leaves the front of the display screen through the radar wave.
Here, a radar wave may be transmitted to a set range based on the radar component, and after the radar wave is transmitted, if a user exists in the transmission process of the radar wave, the user receives and reflects a part of the radar wave. Therefore, whether a user exists in the transmission process of the radar wave can be determined by judging whether the receiver of the radar component receives the echo or not. The setting range may be set according to a requirement, for example, the setting range may be a range covered by a circle with the mobile terminal as a center and the preset distance threshold as a radius. And if the user exists in the set range, determining that the user does not leave the front of the display screen.
In step 305, the display screen is turned off.
Here, when it is determined that the user leaves the display screen, the display screen may be turned off, i.e., turned off.
In step 306, it is detected whether the user returns to the front of the display screen through the radar wave.
Here, after it is determined that there is no user in the setting range based on the transmission parameter and the echo parameter of the radar wave, the display screen may be turned off, and then the radar wave is continuously transmitted and the echo of the radar wave is detected, so as to determine whether the user enters the setting range again, and when the user enters the setting range again, it is determined that the user returns to the front of the display screen.
In step 307, the display is illuminated and an unlock prompt is output.
Here, after it is determined that the user returns to before the display screen, the display screen may be switched from the extinguished state to the lit state, and the unlocking guidance may be output based on the display screen.
Fig. 4 is a diagram illustrating an example of transmitting radar waves according to an exemplary embodiment, and as shown in fig. 4, in the embodiment of the present disclosure, a radar wave may be transmitted by a mobile terminal 401, and then it is determined whether a user 402 is within a set range based on a transmission parameter and an echo parameter of the radar wave transmitted by the mobile terminal 401, and when it is detected that the user leaves a display screen of the mobile terminal or it is detected that no user exists within the set range, the display screen is automatically turned off, so that power consumption is saved and privacy of the user is further protected from being violated.
In the embodiment of the disclosure, after the radar wave is set in the mobile terminal, whether a user is in front of the mobile terminal can be monitored in a low-power-consumption manner in a specific scene, so that screen locking or closing of some application programs with high power consumption can be completed, power consumption can be further saved, and safety of user privacy can be improved. In addition, because the radar waves can radiate farther distance and have strong anti-interference capability (such as blocking of fog, rain and objects), the more accurate movement speed and position of the focusing main body can be obtained, and the image imaging speed and the focusing position adjusting accuracy can be improved.
Fig. 5 is a block diagram illustrating a control device for a display screen according to an exemplary embodiment. As shown in fig. 5, the control device 500 of the display screen is applied to a mobile terminal, and mainly includes:
a first transmitting module 501, configured to transmit a radar wave and detect an echo of the radar wave when a display screen of the mobile terminal is in a working state;
a first determining module 502, configured to determine whether a target user exists within a set range of the mobile terminal according to the transmitting parameter of the radar wave and the echo parameter of the echo;
and the control module 503 is configured to extinguish and lock the display screen if the target user does not exist in the set range.
In other alternative embodiments, the operating state includes: the display screen is outputting multimedia information.
In other alternative embodiments, the apparatus 500 further comprises:
the second transmitting module is configured to continue to transmit the radar waves and detect echoes of the radar waves after the display screen is extinguished;
the second determination module is configured to determine whether the target user exists in the set range according to the emission parameters of the radar waves and the echo parameters of the echo;
the switching module is configured to switch the display screen from a turning-off state to a turning-on state if the target user exists in the set range;
and the output module is configured to output an unlocking prompt through the display screen after the display screen is in the lighting state.
In other alternative embodiments, the apparatus 500 further comprises:
a detection module configured to detect an unlocking instruction input for the unlocking prompt;
and the unlocking module is configured to unlock the display screen based on the unlocking instruction when the unlocking instruction is detected.
In other alternative embodiments, the apparatus 500 further comprises:
and the control module is configured to close part or all of the application programs running in the mobile terminal if the target user does not exist in the set range.
In other optional embodiments, the control module 503 is further configured to:
if the target user does not exist in the set range, detecting the number of the application programs operated in the mobile terminal;
when the number of the application programs running in the mobile terminal is larger than the set number threshold, closing one or more running application programs;
after one or more application programs are closed, the number of the application programs running in the mobile terminal is smaller than or equal to the set number threshold.
In other optional embodiments, the control module 503 is further configured to:
when the number of the application programs operated in the mobile terminal is larger than the set number threshold, determining the power consumption generated by operating each application program;
and closing one or more application programs with the power consumption larger than a set power consumption threshold.
In other optional embodiments, the first determining module 502 is further configured to:
determining the contour information of each object in the set range according to the transmitting parameters of the radar waves and the echo parameters of the echoes;
matching the contour information of each object with the contour information of a target user;
if the matching is successful, determining that the target user exists in the set range;
and if the matching fails, determining that the target user does not exist in the set range.
With regard to the apparatus in the above-described embodiment, the specific manner in which each module performs the operation has been described in detail in the embodiment related to the method, and will not be elaborated here.
Fig. 6 is a block diagram illustrating a hardware configuration of a control apparatus 600 of a display screen according to an exemplary embodiment. For example, the apparatus 600 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. 6, apparatus 600 may include one or more of the following components: a processing component 602, a memory 604, a power component 606, a multimedia component 608, an audio component 610, an interface to input/output (I/O) 612, a sensor component 614, and a communication component 616.
The processing component 602 generally controls overall operation of the device 600, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing component 602 may include one or more processors 620 to execute instructions to perform all or a portion of the steps of the methods described above. Further, the processing component 602 can include one or more modules that facilitate interaction between the processing component 602 and other components. For example, the processing component 602 can include a multimedia module to facilitate interaction between the multimedia component 608 and the processing component 602.
The memory 604 is configured to store various types of data to support operations at the apparatus 600. Examples of such data include instructions for any application or method operating on device 600, contact data, phonebook data, messages, pictures, videos, and so forth. The memory 604 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.
Power component 606 provides power to the various components of device 600. Power components 606 may include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power for device 600.
The multimedia component 608 includes a screen that provides an output interface between the device 600 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 608 includes a front facing camera and/or a rear facing camera. The front camera and/or the rear camera may receive external multimedia data when the device 600 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 610 is configured to output and/or input audio signals. For example, audio component 610 includes a Microphone (MIC) configured to receive external audio signals when apparatus 600 is in an operational mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signal may further be stored in the memory 604 or transmitted via the communication component 616. In some embodiments, audio component 610 further includes a speaker for outputting audio signals.
The I/O interface 612 provides an interface between the processing component 602 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 component 614 includes one or more sensors for providing status assessment of various aspects of the apparatus 600. For example, the sensor component 614 may detect an open/closed state of the device 600, the relative positioning of components, such as a display and keypad of the device 600, the sensor component 614 may also detect a change in position of the device 600 or a component of the device 600, the presence or absence of user contact with the device 600, orientation or acceleration/deceleration of the device 600, and a change in temperature of the device 600. The sensor assembly 614 may include a proximity sensor configured to detect the presence of a nearby object without any physical contact. The sensor assembly 614 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 614 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.
The communication component 616 is configured to facilitate communications between the apparatus 600 and other devices in a wired or wireless manner. The apparatus 600 may access a wireless network based on a communication standard, such as WiFi, 2G or 6G, or a combination thereof. In an exemplary embodiment, the communication component 616 receives broadcast signals or broadcast related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 616 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 600 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 604 comprising instructions, executable by the processor 620 of the apparatus 600 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 in which instructions, when executed by a processor of a control device of a display screen, enable the control device of the display screen to perform a control method of the display screen, the method comprising:
when a display screen of the mobile terminal is in a working state, transmitting radar waves and detecting echoes of the radar waves;
determining whether a target user exists in a set range of the mobile terminal according to the transmitting parameters of the radar waves and the echo parameters of the echoes;
and if the target user does not exist in the set range, turning off and locking the display screen.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It will be understood that the present disclosure 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 present disclosure is limited only by the appended claims.

Claims (18)

1. A control method of a display screen is applied to a mobile terminal and comprises the following steps:
when a display screen of the mobile terminal is in a working state, transmitting radar waves and detecting echoes of the radar waves;
determining whether a target user exists in a set range of the mobile terminal according to the transmitting parameters of the radar waves and the echo parameters of the echoes;
and if the target user does not exist in the set range, turning off and locking the display screen.
2. The method of claim 1, wherein the operating state comprises: the display screen is outputting multimedia information.
3. The method of claim 1, further comprising:
after the display screen is turned off, continuing to emit the radar waves and detecting echoes of the radar waves;
determining whether the target user exists in the set range according to the transmitting parameters of the radar waves and the echo parameters of the echoes;
if the target user exists in the set range, switching the display screen from a turning-off state to a turning-on state;
and after the display screen is in the lighting state, outputting an unlocking prompt through the display screen.
4. The method of claim 3, further comprising:
detecting an unlocking instruction input for the unlocking prompt;
and when the unlocking instruction is detected, unlocking the display screen based on the unlocking instruction.
5. The method of claim 1, further comprising:
and if the target user does not exist in the set range, closing part or all of the application programs running in the mobile terminal.
6. The method according to claim 5, wherein said closing part or all of the applications run by the mobile terminal if the target user does not exist in the set range comprises:
if the target user does not exist in the set range, detecting the number of the application programs operated in the mobile terminal;
when the number of the application programs running in the mobile terminal is larger than the set number threshold, closing one or more running application programs;
after one or more application programs are closed, the number of the application programs running in the mobile terminal is smaller than or equal to the set number threshold.
7. The method according to claim 6, wherein when the number of the applications running in the mobile terminal is greater than the set number threshold, then closing one or more running applications comprises:
when the number of the application programs operated in the mobile terminal is larger than the set number threshold, determining the power consumption generated by operating each application program;
and closing one or more application programs with the power consumption larger than a set power consumption threshold.
8. The method according to any one of claims 1 to 7, wherein the determining whether the target user exists within the setting range of the mobile terminal according to the transmitting parameter of the radar wave and the echo parameter of the echo comprises:
determining the contour information of each object in the set range according to the transmitting parameters of the radar waves and the echo parameters of the echoes;
matching the contour information of each object with the contour information of a target user;
if the matching is successful, determining that the target user exists in the set range;
and if the matching fails, determining that the target user does not exist in the set range.
9. A control device of a display screen, which is applied to a mobile terminal, comprises:
the mobile terminal comprises a first transmitting module, a second transmitting module and a control module, wherein the first transmitting module is configured to transmit radar waves and detect echoes of the radar waves when a display screen of the mobile terminal is in a working state;
the first determining module is configured to determine whether a target user exists in a set range of the mobile terminal according to the transmitting parameter of the radar wave and the echo parameter of the echo;
and the control module is configured to extinguish and lock the display screen if the target user does not exist in the set range.
10. The apparatus of claim 9, wherein the operating state comprises: the display screen is outputting multimedia information.
11. The apparatus of claim 9, further comprising:
the second transmitting module is configured to continue to transmit the radar waves and detect echoes of the radar waves after the display screen is extinguished;
the second determination module is configured to determine whether the target user exists in the set range according to the emission parameters of the radar waves and the echo parameters of the echo;
the switching module is configured to switch the display screen from a turning-off state to a turning-on state if the target user exists in the set range;
and the output module is configured to output an unlocking prompt through the display screen after the display screen is in the lighting state.
12. The apparatus of claim 11, further comprising:
a detection module configured to detect an unlocking instruction input for the unlocking prompt;
and the unlocking module is configured to unlock the display screen based on the unlocking instruction when the unlocking instruction is detected.
13. The apparatus of claim 10, further comprising:
and the control module is configured to close part or all of the application programs running in the mobile terminal if the target user does not exist in the set range.
14. The apparatus of claim 13, wherein the control module is further configured to:
if the target user does not exist in the set range, detecting the number of the application programs operated in the mobile terminal;
when the number of the application programs running in the mobile terminal is larger than the set number threshold, closing one or more running application programs;
after one or more application programs are closed, the number of the application programs running in the mobile terminal is smaller than or equal to the set number threshold.
15. The apparatus of claim 14, wherein the control module is further configured to:
when the number of the application programs operated in the mobile terminal is larger than the set number threshold, determining the power consumption generated by operating each application program;
and closing one or more application programs with the power consumption larger than a set power consumption threshold.
16. The apparatus of any of claims 9 to 15, wherein the first determining module is further configured to:
determining the contour information of each object in the set range according to the transmitting parameters of the radar waves and the echo parameters of the echoes;
matching the contour information of each object with the contour information of a target user;
if the matching is successful, determining that the target user exists in the set range;
and if the matching fails, determining that the target user does not exist in the set range.
17. A control device for a display screen, comprising:
a processor;
a memory configured to store processor-executable instructions;
wherein the processor is configured to: the steps in a method of controlling a display screen according to any one of claims 1 to 8 when executed.
18. A non-transitory computer readable storage medium, wherein instructions, when executed by a processor of a control device of a display screen, enable the device to perform the steps of the control method of the display screen of any one of claims 1 to 8.
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