CN109739394B - SAR value processing method and mobile terminal - Google Patents
SAR value processing method and mobile terminal Download PDFInfo
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- CN109739394B CN109739394B CN201811584377.0A CN201811584377A CN109739394B CN 109739394 B CN109739394 B CN 109739394B CN 201811584377 A CN201811584377 A CN 201811584377A CN 109739394 B CN109739394 B CN 109739394B
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Abstract
The invention provides a method for processing an SAR value, a mobile terminal and a computer readable storage medium, and relates to the technical field of image processing. Wherein the method comprises the following steps: respectively acquiring the induction capacitance values of a plurality of areas of the first screen and a plurality of areas of the second screen; determining an application scene of the mobile terminal according to the induction capacitance value; and executing SAR reduction operation corresponding to the application scene on the mobile terminal. According to the embodiment of the invention, the SAR reduction operation can be executed according to the induction capacitance values corresponding to all areas of the screen without installing more sensors, and different SAR reduction operations can be executed according to different application scenes, so that the use efficiency of the mobile terminal is improved.
Description
Technical Field
The invention relates to the technical field of terminal antennas, in particular to a method for processing an SAR value and a mobile terminal.
Background
An antenna of a mobile terminal has a certain electromagnetic radiation in a working process, and generally, an SAR (specific absorption rate) index is internationally adopted to measure energy absorbed by a human body in an electromagnetic exposure environment. Generally, the higher the output of the antenna, the higher the SAR value.
At present, how to process the SAR is determined by the distance between the user and the mobile terminal, for example, when the user puts the mobile terminal in a pocket, or holds the mobile terminal by hand, the distance from the user to the mobile terminal is the same, but the use functions of the mobile terminal are different, and the method for processing the SAR correspondingly needs to be different. Therefore, the processing manner of determining the SAR by the distance is not accurate.
Disclosure of Invention
The invention provides a processing method of an SAR value, which aims to solve the problem that the SAR can not be accurately reduced according to the application scene of a mobile terminal at present.
In a first aspect, an embodiment of the present invention provides a method for processing an SAR value, which is applied to a mobile terminal, where the mobile terminal includes a first screen and a second screen that are arranged opposite to each other, and the method includes:
respectively acquiring the induction capacitance values of a plurality of areas of the first screen and a plurality of areas of the second screen;
determining an application scene of the mobile terminal according to the induction capacitance value;
and executing SAR reduction operation corresponding to the application scene on the mobile terminal.
In a second aspect, an embodiment of the present invention provides a mobile terminal, where the mobile terminal includes a first screen and a second screen that are arranged opposite to each other, and the mobile terminal includes:
the acquisition module is used for respectively acquiring the induction capacitance values of the plurality of areas of the first screen and the plurality of areas of the second screen;
the determining module is used for determining the application scene of the mobile terminal according to the induction capacitance value;
and the execution module is used for executing SAR reduction operation corresponding to the application scene on the mobile terminal.
In a third aspect, a mobile terminal is provided, which includes a processor, a memory, and a computer program stored on the memory and operable on the processor, and when executed by the processor, the computer program implements the steps of the processing method of the SAR of the present invention.
In a fourth aspect, a computer-readable storage medium is provided, on which a computer program is stored, which, when executed by a processor, implements the steps of the processing method of the SAR according to the invention.
In the embodiment of the invention, the induction capacitance values of the plurality of areas of the first screen and the plurality of areas of the second screen are respectively obtained; determining an application scene of the mobile terminal according to the induction capacitance value; the SAR reduction operation corresponding to the application scene is executed on the mobile terminal, so that the SAR reduction operation can be executed according to the induction capacitance values corresponding to all areas of the screen without installing more sensors, different SAR reduction operations can be executed according to different application scenes, and the service efficiency of the mobile terminal is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor.
Fig. 1 is a flowchart illustrating a method for processing an SAR value according to a first embodiment of the present invention;
fig. 2 is a flowchart illustrating a method for processing an SAR value according to a second embodiment of the present invention;
fig. 3 is a schematic structural diagram illustrating a mobile terminal screen partition according to a second embodiment of the present invention;
fig. 4 is a block diagram illustrating a mobile terminal according to a third embodiment of the present invention;
fig. 5 is a block diagram illustrating a mobile terminal according to a third embodiment of the present invention;
fig. 6 shows a block diagram of a mobile terminal according to a fourth embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention can be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
Example one
Referring to fig. 1, a flowchart of a method for processing an SAR according to a first embodiment of the present invention is shown, which may specifically include the following steps:
In the embodiment of the invention, the mobile terminal comprises a first screen and a second screen which are arranged oppositely; the mobile terminal can be a double-faced screen, namely, the first screen and the second screen are both display screens. The mobile terminal may also be a single-sided screen, wherein one of the first screen and the second screen is a display screen and the other is a rear case.
In the embodiment of the present invention, the first screen is divided into a plurality of regions, and the second screen is divided into a plurality of regions. Specifically, the area division rule is that the first screen and the second screen are divided according to an antenna built in the mobile terminal, and may also be divided according to a specific application scenario of the mobile terminal.
In the embodiment of the present invention, step 101 includes: and acquiring the induction capacitance value of the induction capacitor under the condition that the induction capacitor in any area of the first screen or the second screen is induced.
In the embodiment of the invention, each area of the first screen and the second screen is provided with an induction capacitor, and the induction capacitors are used for generating corresponding induction capacitance values when a user approaches the first screen or the second screen.
And step 102, determining the application scene of the mobile terminal according to the induction capacitance value.
In the embodiment of the present invention, each area of the first screen and the second screen has a corresponding sensing capacitance value, and the sensing capacitance values may be the same or different. Wherein, the combination of different induction capacitance values corresponds to different mobile terminal scenes.
In the embodiment of the invention, when a user makes a call, only the area near the receiver is close to the user generally, and the distances from other areas to the user are different, so that the corresponding induction capacitance values are different. When the user places the mobile terminal in a pocket, distances of respective areas and the body should be the same, and thus corresponding sensing capacitance values should be the same. When a user holds the mobile terminal, a part of the sensing capacitance value is the largest, and a part of the sensing capacitance value is the smallest.
And 103, executing SAR reduction operation corresponding to the application scene on the mobile terminal.
In the embodiment of the invention, the service efficiency of the mobile terminal can be maximized according to the SAR reduction corresponding to different application scenes.
For example, when a call is made, the radiation to the head will be relatively large, and the radiation can be correspondingly adjusted according to the requirement on the SAR value of the head, so that the call efficiency can be ensured and the radiation to the head of the user can be reduced to the minimum value when the user makes a call. When the user puts the mobile terminal in a pocket, it can be understood that the user does not use the mobile terminal at the moment, and the SAR value can be reduced to the minimum under the condition of ensuring the function of basic receiving signals. When the user uses the mobile terminal by hand, such as playing a game or watching a video while holding the mobile terminal, there is no radiation to the user, so that the SAR reduction operation is not necessary to maximize the efficiency of the mobile terminal.
In the embodiment of the invention, the induction capacitance values of the plurality of areas of the first screen and the plurality of areas of the second screen are respectively obtained; determining an application scene of the mobile terminal according to the induction capacitance value; the SAR reduction operation corresponding to the application scene is executed on the mobile terminal, so that the SAR reduction operation can be executed according to the induction capacitance values corresponding to all areas of the screen without installing more sensors, different SAR reduction operations can be executed according to different application scenes, and the service efficiency of the mobile terminal is improved.
Example two
Referring to fig. 2, a flowchart of a SAR processing method according to a second embodiment of the present invention is shown, which may specifically include the following steps:
Referring to step 101, the description is omitted here.
In an embodiment of the present invention, the plurality of regions of the first screen described with reference to fig. 3 include a first region a1, a second region a 2; the first area A1 is an area close to an earpiece of the mobile terminal, and the second area A2 is an area far away from the earpiece of the mobile terminal; the multiple regions of the second screen include a third region A3 and a fourth region a4, the third region A3 is a region opposite to the first region a1, and the fourth region a4 is a region opposite to the second region a 2.
In the embodiment of the invention, the use state of the receiver of the mobile terminal can be determined according to whether the receiver works, and when the mobile terminal is in the use state of the receiver and the value of the induction capacitor in the first area is smaller than the preset threshold, it can be determined that a user is making a call in the first area close to the body, so that the scene of the mobile terminal at the moment is determined to be the first scene.
In the embodiment of the invention, the magnitude of the induced capacitance value is inversely proportional to the distance of a target object from the first screen or the second screen. Therefore, when the body is close to the mobile terminal, the sensing capacitance value is increased, and when the body is far away from the mobile terminal, the sensing capacitance value is decreased.
In the embodiment of the present invention, as shown in fig. 3, when the sensing capacitance values of the first area a1 and the second area a2 are both greater than the preset threshold value, the first screen of the mobile terminal is close to the body, and when the sensing capacitance values of the third area A3 and the fourth area a4 are both greater than the preset threshold value, the second screen of the mobile terminal is close to the body. In specific implementation, the preset threshold value can be set at a certain value, and since the mobile terminal is thin, when the induction capacitance values corresponding to the first area, the second area, the third area and the fourth area are all larger than the preset threshold value, it can be determined that the first screen and the second screen are both close to the body. When these three cases occur, it may be determined that the application scene of the mobile terminal is in the second scene.
In the embodiment of the invention, the mobile terminal generally has a larger radiation to the human body in the first scene and the second scene, and has a smaller radiation to the human body in other scenes except the first scene and the second scene, so that when the mobile terminal is not in the first scene and the second scene, the application scene of the mobile terminal is determined to be the third scene.
In an embodiment of the present invention, the mobile terminal includes a plurality of antennas. Referring to fig. 3, two antennas may be respectively disposed at two ends of the mobile terminal, wherein an upper antenna is disposed near the handset, and a lower antenna is disposed far from the handset. The mobile terminal can also be provided with a plurality of antennas in different areas according to requirements.
In the embodiment of the invention, the SAR value of the mobile terminal is determined according to the output power of the antenna, the output power of the antenna is in direct proportion to the SAR value, when the output power of the antenna is increased, the SAR value is also increased, and the higher the output power of the antenna is, the higher the radiation to the human body is.
In the embodiment of the invention, the corresponding safe output power can be set in advance aiming at the application scene. For example, when the first scenario is adopted, the head is generally attached to the mobile terminal, and the safe output power corresponding to the first scenario can be set according to the call requirement and the range of the SAR value borne by the head specified by the standard. In the second scenario, the body is generally in close contact with the mobile terminal, and the mobile terminal does not belong to the use state at this time, but needs to receive signals, so the safety antenna rule corresponding to the second scenario can be set according to the needs of receiving signals and the SAR value range of the body regulated by the standard. When the third scenario is adopted, only part of the hand may contact part of the mobile terminal, or the body is far away from the mobile terminal, and at this time, only the mobile terminal may be considered for use, and no consideration is needed for reducing the SAR value, that is, the safe output power corresponding to the third scenario is large, so that the use efficiency of the mobile terminal can be improved, and the user experience can be improved.
In the embodiment of the present invention, the safe output powers corresponding to different antennas may be the same or different, and when obtaining the safe output power, the safe output powers corresponding to the antennas may be obtained, and when reducing the current output power, the safe output powers are reduced based on the safe output powers.
And 206, performing SAR reduction operation on the antenna according to the safe output power corresponding to the antenna.
In the embodiment of the present invention, the safe output powers corresponding to different antennas may be the same or different, and when obtaining the safe output power, the safe output powers corresponding to the antennas may be obtained, and when reducing the current output power, the safe output powers are reduced based on the safe output powers.
In the embodiment of the invention, the SAR value is further reduced by reducing the power of the mobile terminal antenna.
In this embodiment of the present invention, when the application scenario is the first scenario or the second scenario, step 206 includes: acquiring the current output power of the antenna; and when the current output power is larger than the corresponding safe output power, reducing the current output power until the current output power is smaller than or equal to the safe output power corresponding to the antenna.
In the embodiment of the present invention, when the application scenario of the mobile terminal is the third scenario, the decrease value of the SAR value of the mobile terminal is zero, that is, the current output power of the antenna is not decreased.
In the embodiment of the invention, the induction capacitance values of the plurality of areas of the first screen and the plurality of areas of the second screen are respectively obtained; determining an application scene of the mobile terminal according to the induction capacitance value; the SAR reduction operation corresponding to the application scene is executed on the mobile terminal, so that the SAR reduction operation can be executed according to the induction capacitance values corresponding to all areas of the screen without installing more sensors, different SAR reduction operations can be executed according to different application scenes, and the service efficiency of the mobile terminal is improved.
EXAMPLE III
Referring to fig. 4, a block diagram of a mobile terminal 300 according to a third embodiment of the present invention is shown, which may specifically include:
an obtaining module 301, configured to obtain induction capacitance values of a plurality of regions of the first screen and a plurality of regions of the second screen respectively;
wherein the mobile terminal comprises a first screen and a second screen which are arranged oppositely,
a determining module 302, configured to determine an application scenario of the mobile terminal according to the induced capacitance value;
an executing module 303, configured to execute, on the mobile terminal, a SAR reduction operation corresponding to the application scenario.
Optionally, referring to fig. 5, the obtaining module 302 includes:
a first determining unit 3021, configured to determine that the mobile terminal is in a first scene if an induction capacitance value of a first area is greater than a preset threshold value when the mobile terminal is detected to be in an earphone usage state; the first area is an area close to one side of an earphone of the mobile terminal in the area of the first screen;
the plurality of areas of the first screen comprise a first area and a second area; the first area is an area close to a receiver of the mobile terminal, and the second area is an area far away from the receiver of the mobile terminal; the multiple regions of the second screen comprise a third region and a fourth region, the third region is a region opposite to the first region, and the fourth region is a region opposite to the second region;
a second determining unit 3022, configured to determine that the mobile terminal is in a second scene if the sensing capacitance values of the regions of the first screen and/or the regions of the second screen are greater than a preset threshold value when it is detected that the mobile terminal is not in the earpiece usage state;
a third determining unit 3023, configured to determine that the mobile terminal is the third scene when the mobile terminal is not the first scene and the second scene.
The mobile terminal comprises a plurality of antennas; the executing module 303 includes:
an obtaining unit 3031, configured to obtain, according to the application scenario, a safe output power of the antenna corresponding to the application scenario;
an executing unit 3032, configured to perform SAR reduction on the antenna according to the safe output power corresponding to the antenna.
When the application scene is the first scene or the second scene, the executing unit 3032 includes:
the obtaining subunit is used for obtaining the current output power of the antenna;
and the reducing subunit is used for reducing the current output power until the current output power is less than or equal to the safe output power corresponding to the antenna when the current output power is greater than the corresponding safe output power.
The magnitude of the induced capacitance value is inversely proportional to the distance of a target object from the first screen or the second screen.
The mobile terminal provided in the embodiment of the present invention can implement each process implemented by the mobile terminal in the method embodiments of fig. 1 to fig. 2, and is not described herein again to avoid repetition.
In the embodiment of the invention, the induction capacitance values of the plurality of areas of the first screen and the plurality of areas of the second screen are respectively obtained; determining an application scene of the mobile terminal according to the induction capacitance value; the SAR reduction operation corresponding to the application scene is executed on the mobile terminal, so that the SAR reduction operation can be executed according to the induction capacitance values corresponding to all areas of the screen without installing more sensors, different SAR reduction operations can be executed according to different application scenes, and the service efficiency of the mobile terminal is improved.
Example four
Figure 6 is a schematic diagram of a hardware configuration of a mobile terminal implementing various embodiments of the present invention,
the mobile terminal 700 includes, but is not limited to: a radio frequency unit 701, a network module 702, an audio output unit 703, an input unit 704, a sensor 705, a display unit 706, a user input unit 707, an interface unit 708, a memory 709, a processor 710, a power supply 711, and the like. Those skilled in the art will appreciate that the mobile terminal architecture shown in fig. 6 is not intended to be limiting of mobile terminals, and that a mobile terminal may include more or fewer components than shown, or some components may be combined, or a different arrangement of components. In the embodiment of the present invention, the mobile terminal includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted terminal, a wearable device, a pedometer, and the like.
The radio frequency unit 701 is configured to obtain the induced capacitance values of the multiple regions of the first screen and the multiple regions of the second screen, respectively.
A processor 110, configured to determine an application scenario of the mobile terminal according to the induced capacitance value; and executing SAR reduction operation corresponding to the application scene on the mobile terminal.
In the embodiment of the invention, the induction capacitance values of the plurality of areas of the first screen and the plurality of areas of the second screen are respectively obtained; determining an application scene of the mobile terminal according to the induction capacitance value; the SAR reduction operation corresponding to the application scene is executed on the mobile terminal, so that the SAR reduction operation can be executed according to the induction capacitance values corresponding to all areas of the screen without installing more sensors, different SAR reduction operations can be executed according to different application scenes, and the service efficiency of the mobile terminal is improved.
It should be understood that, in the embodiment of the present invention, the radio frequency unit 701 may be used for receiving and sending signals during a message transmission and reception process or a call process, and specifically, receives downlink data from a base station and then processes the received downlink data to the processor 710; in addition, the uplink data is transmitted to the base station. In general, radio frequency unit 701 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. In addition, the radio frequency unit 701 may also communicate with a network and other devices through a wireless communication system.
The mobile terminal provides the user with wireless broadband internet access via the network module 702, such as helping the user send and receive e-mails, browse web pages, and access streaming media.
The audio output unit 703 may convert audio data received by the radio frequency unit 701 or the network module 702 or stored in the memory 109 into an audio signal and output as sound. Also, the audio output unit 703 may also provide audio output related to a specific function performed by the mobile terminal 700 (e.g., a call signal reception sound, a message reception sound, etc.). The audio output unit 703 includes a speaker, a buzzer, a receiver, and the like.
The input unit 104 is used to receive an audio or video signal. The input Unit 704 may include a Graphics Processing Unit (GPU) 7041 and a microphone 7042, and the Graphics processor 7041 processes image data of a still picture or video obtained by an image capturing device (e.g., a camera) in a video capturing mode or an image capturing mode. The processed image frames may be displayed on the display unit 706. The image frames processed by the graphic processor 7041 may be stored in the memory 709 (or other storage medium) or transmitted via the radio unit 701 or the network module 702. The microphone 7042 may receive sounds and may be capable of processing such sounds into audio data. The processed audio data may be converted into a format output transmittable to a mobile communication base station via the radio frequency unit 701 in case of a phone call mode.
The mobile terminal 700 also includes at least one sensor 705, such as a light sensor, motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor that can adjust the brightness of the display panel 7061 according to the brightness of ambient light, and a proximity sensor that can turn off the display panel 7061 and/or a backlight when the mobile terminal 700 is moved to the ear. As one of the motion sensors, the accelerometer sensor can detect the magnitude of acceleration in each direction (generally three axes), detect the magnitude and direction of gravity when stationary, and can be used to identify the posture of the mobile terminal (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), and vibration identification related functions (such as pedometer, tapping); the sensors 705 may also include fingerprint sensors, pressure sensors, iris sensors, molecular sensors, gyroscopes, barometers, hygrometers, thermometers, infrared sensors, etc., which are not described in detail herein.
The display unit 706 is used to display information input by the user or information provided to the user. The Display unit 706 may include a Display panel 7061, and the Display panel 7061 may be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like.
The user input unit 707 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the mobile terminal. Specifically, the user input unit 707 includes a touch panel 7071 and other input devices 7072. The touch panel 7071, also referred to as a touch screen, may collect touch operations by a user on or near the touch panel 7071 (e.g., operations by a user on or near the touch panel 7071 using a finger, a stylus, or any other suitable object or attachment). The touch panel 7071 may include two parts of a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 710, receives a command from the processor 710, and executes the command. In addition, the touch panel 7071 can be implemented by various types such as resistive, capacitive, infrared, and surface acoustic wave. The user input unit 707 may include other input devices 7072 in addition to the touch panel 7071. In particular, the other input devices 7072 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which are not described herein again.
Further, the touch panel 7071 may be overlaid on the display panel 7061, and when the touch panel 7071 detects a touch operation on or near the touch panel 7071, the touch operation is transmitted to the processor 710 to determine the type of the touch event, and then the processor 710 provides a corresponding visual output on the display panel 7061 according to the type of the touch event. Although the touch panel 7071 and the display panel 7061 are shown in fig. 6 as two separate components to implement the input and output functions of the mobile terminal, in some embodiments, the touch panel 7071 and the display panel 7061 may be integrated to implement the input and output functions of the mobile terminal, which is not limited herein.
The interface unit 708 is an interface through which an external device is connected to the mobile terminal 700. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input/output (I/O) port, a video I/O port, an earphone port, and the like. The interface unit 708 may be used to receive input (e.g., data information, power, etc.) from external devices and transmit the received input to one or more elements within the mobile terminal 700 or may be used to transmit data between the mobile terminal 700 and external devices.
The memory 709 may be used to store software programs as well as various data. The memory 709 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. Further, the memory 709 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.
The processor 710 is a control center of the mobile terminal, connects various parts of the entire mobile terminal using various interfaces and lines, and performs various functions of the mobile terminal and processes data by operating or executing software programs and/or modules stored in the memory 709 and calling data stored in the memory 709, thereby integrally monitoring the mobile terminal. Processor 710 may include one or more processing units; preferably, the processor 710 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into processor 710.
The mobile terminal 700 may also include a power supply 711 (e.g., a battery) for powering the various components, and the power supply 711 may be logically coupled to the processor 710 via a power management system that may enable managing charging, discharging, and power consumption by the power management system.
In addition, the mobile terminal 700 includes some functional modules that are not shown, and thus will not be described in detail herein.
Preferably, an embodiment of the present invention further provides a mobile terminal, including a processor 710, a memory 709, and a computer program stored in the memory 709 and capable of running on the processor 710, where the computer program is executed by the processor 710 to implement each process of the above-mentioned embodiment of the method for processing an SAR value, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here.
The embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements each process of the above-mentioned method for processing an SAR value, and can achieve the same technical effect, and in order to avoid repetition, the description is omitted here. The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (8)
1. A processing method of SAR is applied to a mobile terminal, wherein the mobile terminal comprises a first screen and a second screen which are arranged in a back-to-back manner, and the method is characterized by comprising the following steps:
respectively acquiring the induction capacitance values of a plurality of areas of the first screen and a plurality of areas of the second screen;
determining an application scene of the mobile terminal according to the induction capacitance value;
executing SAR reduction operation corresponding to the application scene on the mobile terminal;
the mobile terminal comprises a plurality of antennas; the step of executing the SAR reduction operation corresponding to the application scenario to the mobile terminal includes:
according to the application scene, acquiring the safe output power of the antenna corresponding to the application scene;
and carrying out SAR reduction operation on the antenna according to the safe output power corresponding to the antenna.
2. The method of claim 1, wherein the plurality of regions of the first screen comprises a first region, a second region; the first area is an area close to a receiver of the mobile terminal, and the second area is an area far away from the receiver of the mobile terminal; the multiple regions of the second screen comprise a third region and a fourth region, the third region is a region opposite to the first region, and the fourth region is a region opposite to the second region;
the step of determining the application scenario of the mobile terminal according to the sensing capacitor value includes:
under the condition that the mobile terminal is detected to be in an earphone using state, if the value of the induction capacitor of the first area is larger than a preset threshold value, the mobile terminal is determined to be in a first scene;
under the condition that the mobile terminal is not in an earphone use state, if the induction capacitance values of all areas of the first screen and/or all areas of the second screen are larger than a preset threshold value, determining that the mobile terminal is in a second scene;
and when the mobile terminal is not in the first scene and the second scene, determining that the mobile terminal is in a third scene.
3. The method according to claim 2, wherein when the application scenario is the first scenario or the second scenario, the step of performing SAR reduction operation on the mobile terminal according to the safe output power includes:
acquiring the current output power of the antenna;
and when the current output power is larger than the corresponding safe output power, reducing the current output power until the current output power is smaller than or equal to the safe output power corresponding to the antenna.
4. The utility model provides a mobile terminal, mobile terminal is including carrying on the back first screen and the second screen that sets up mutually, its characterized in that includes:
the acquisition module is used for respectively acquiring the induction capacitance values of the plurality of areas of the first screen and the plurality of areas of the second screen;
the determining module is used for determining the application scene of the mobile terminal according to the induction capacitance value;
the execution module is used for executing SAR reduction operation corresponding to the application scene on the mobile terminal;
the mobile terminal comprises a plurality of antennas; the execution module includes:
the acquisition unit is used for acquiring the safe output power of the antenna corresponding to the application scene according to the application scene;
and the execution unit is used for carrying out SAR reduction operation on the antenna according to the safe output power corresponding to the antenna.
5. The mobile terminal of claim 4, wherein the plurality of regions of the first screen comprise a first region, a second region; the first area is an area close to a receiver of the mobile terminal, and the second area is an area far away from the receiver of the mobile terminal; the multiple regions of the second screen comprise a third region and a fourth region, the third region is a region opposite to the first region, and the fourth region is a region opposite to the second region;
the determining module includes:
the first determining unit is used for determining that the mobile terminal is in a first scene if the value of the induction capacitor of the first area is greater than a preset threshold value under the condition that the mobile terminal is detected to be in an earphone using state;
the second determining unit is used for determining that the mobile terminal is in a second scene if the induction capacitance values of all areas of the first screen and/or all areas of the second screen are larger than a preset threshold value under the condition that the mobile terminal is not in the earphone using state;
a third determining unit, configured to determine that the mobile terminal is a third scene when the mobile terminal is not in the first scene or the second scene.
6. The mobile terminal according to claim 5, wherein when the application scene is the first scene or the second scene, the execution unit includes:
the obtaining subunit is used for obtaining the current output power of the antenna;
and the reducing subunit is used for reducing the current output power until the current output power is less than or equal to the safe output power corresponding to the antenna when the current output power is greater than the corresponding safe output power.
7. A mobile terminal, characterized in that it comprises a processor, a memory and a computer program stored on the memory and executable on the processor, which computer program, when executed by the processor, implements the steps of the processing method of the SAR according to any one of claims 1 to 3.
8. A computer-readable storage medium, characterized in that a computer program is stored on the computer-readable storage medium, which computer program, when being executed by a processor, realizes the steps of the processing method of the SAR according to any one of claims 1 to 3.
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| CN110850965B (en) * | 2019-10-16 | 2023-09-22 | 青岛海信移动通信技术有限公司 | Mobile terminal and updating method of capacitor threshold value |
| CN111190500A (en) * | 2019-11-12 | 2020-05-22 | 华为终端有限公司 | Method for reducing SAR of terminal equipment and terminal equipment |
| CN111356222A (en) * | 2020-03-13 | 2020-06-30 | 华为技术有限公司 | Transmission power adjustment method, terminal, storage medium, and electronic device |
| CN113503807B (en) * | 2021-08-05 | 2024-02-27 | 维沃移动通信有限公司 | Electronic device and detection method |
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| US8831528B2 (en) * | 2012-01-04 | 2014-09-09 | Futurewei Technologies, Inc. | SAR control using capacitive sensor and transmission duty cycle control in a wireless device |
| CN108572767B (en) * | 2018-03-20 | 2020-02-21 | 维沃移动通信有限公司 | Method for determining external object position and mobile terminal |
| CN108880701A (en) * | 2018-05-14 | 2018-11-23 | 深圳市万普拉斯科技有限公司 | Adjust the method, device and mobile terminal of antenna radiation performance |
| CN108601073B (en) * | 2018-07-09 | 2021-06-29 | 深圳市万普拉斯科技有限公司 | Method for reducing SAR, mobile terminal and computer readable storage medium |
| CN108736140A (en) * | 2018-08-15 | 2018-11-02 | 维沃移动通信有限公司 | A kind of method of controlling antenna and terminal device |
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