Method, device and terminal for controlling terminal to reduce electromagnetic wave absorption ratio

Abstract

The present invention discloses a method, device and terminal for controlling a terminal to reduce the electromagnetic wave absorption ratio. The invention includes: obtaining the change in charge on the capacitive screen when a spatial displacement of the terminal is detected; and controlling the terminal to start a mechanism to reduce the electromagnetic wave absorption ratio when the change in charge is greater than or equal to a preset threshold, wherein when the terminal starts the mechanism to reduce the SAR, the signal conduction power of the terminal is reduced. The present invention solves the technical problem of reducing the terminal SAR by increasing hardware cost or sacrificing hardware performance in the related art.

Description

Technical Field

[0001] The present invention relates to the field of wireless communications, and in particular to a method, a device and a terminal for controlling a terminal to reduce an electromagnetic wave absorption ratio. Background Art

[0002] With the development of information technology, while people are enjoying the convenience brought by wireless communication devices, they are also increasingly concerned about the impact of electromagnetic radiation from wireless communication terminals on human health. In the field of mobile terminal research and development and testing, antenna engineers not only pay attention to TRP (total radiated power), TIS (total isotropic sensitivity), RL (return loss), and Efficiency, but also pay great attention to another indicator---specific absorption rate (SAR). The size of SAR indicates the impact of electromagnetic radiation from mobile phones on human health. In the design of mobile phone antennas, the main focus is on the impact of electromagnetic radiation from wireless communication terminals on the human head. The size of the SAR value is closely related to the radiation power of the mobile phone. Usually, the size of the SAR value is proportional to the TRP. In the design, TRP and SAR are a pair of contradictions. How to balance the relationship between the two in the specific design is the focus of many technicians.

[0003] In the related art, the SAR reduction processing of the terminal is usually carried out in the following ways: 1. Adding a SAR sensor in the circuit to reduce the SAR; 2. Switching the antenna to avoid the SAR problem; 3. Adjusting the antenna form. However, the above methods have the disadvantages of increasing hardware costs or sacrificing hardware performance.

[0004] Therefore, no effective solution has been proposed so far for the above-mentioned problems existing in the related art. Summary of the invention

[0005] The main purpose of the present invention is to provide a method, device and terminal for controlling a terminal to reduce the electromagnetic wave absorption ratio, so as to solve the technical problem of reducing the terminal SAR by increasing hardware cost or sacrificing hardware performance in the related art.

[0006] In order to achieve the above-mentioned purpose, according to one aspect of the present invention, a method for controlling a terminal to reduce an electromagnetic wave absorption ratio is provided, wherein a capacitive screen is arranged on an outer surface of the terminal, and the method comprises: when a spatial displacement of the terminal is detected, obtaining a change in charge on the capacitive screen; when the change in charge is greater than or equal to a preset threshold, controlling the terminal to start a mechanism for reducing the electromagnetic wave absorption ratio, wherein when the terminal starts the mechanism for reducing SAR, the signal conduction power of the terminal is reduced.

[0007] Further, detecting that the terminal has undergone spatial displacement includes: receiving a voltage signal output by a gravity sensing module of the terminal; and determining that the terminal has undergone spatial displacement when a change in the voltage signal is detected, wherein when the spatial displacement of the gravity sensing module changes, the voltage signal output by the gravity sensing module changes.

[0008] Furthermore, when spatial displacement of the terminal is detected, before obtaining the change in charge on the capacitive screen, the method includes: receiving a drive signal generated by a preset chip for controlling the capacitive screen; and determining an initial charge generated on the capacitive screen based on the drive signal.

[0009] Furthermore, when spatial displacement of the terminal is detected, obtaining the change in charge on the capacitive screen includes: measuring a target charge generated on the capacitive screen when spatial displacement of the terminal is detected; obtaining a difference between the target charge and the initial charge, and determining the difference as the change in charge.

[0010] Furthermore, when spatial displacement of the terminal is detected, obtaining the change in charge on the capacitive screen also includes: dividing the capacitive screen into multiple sub-areas; and when it is determined that spatial displacement of the terminal occurs, respectively determining multiple charge changes on the multiple sub-areas.

[0011] Furthermore, when the change in charge is greater than or equal to a preset threshold, the control terminal starts a mechanism to reduce the electromagnetic wave absorption ratio, including: when it is detected that the corresponding charge change in any sub-area is greater than or equal to the preset threshold, the control terminal starts a mechanism to reduce the electromagnetic wave absorption ratio.

[0012] In order to achieve the above-mentioned purpose, according to another aspect of the present invention, a device for reducing the electromagnetic wave absorption ratio is provided, the device is provided with a capacitive screen, and the device comprises: a first acquisition unit, used to obtain the change of charge on the capacitive screen when a spatial displacement of the terminal is detected; a control unit, used to control the terminal to start a mechanism for reducing the electromagnetic wave absorption ratio when the change of the charge is greater than or equal to a preset threshold, wherein when the terminal starts the SAR reduction mechanism, the signal conduction power of the terminal is reduced.

[0013] In order to achieve the above-mentioned purpose, according to another aspect of the present invention, a terminal is provided, wherein a capacitive screen is arranged on the outer surface of the terminal, and the terminal comprises: a memory and a processor; wherein the memory is connected to the processor and is used to store a program and data generated during the running of the program, and the program is used to execute the above-mentioned method of controlling a terminal to reduce an electromagnetic wave absorption ratio; and the processor is used to run the program.

[0014] Through the present invention, the following steps are adopted: when the spatial displacement of the terminal is detected, the change in charge on the capacitive screen is obtained; when the change in charge is greater than or equal to a preset threshold, the terminal is controlled to start a mechanism to reduce the electromagnetic wave absorption ratio, wherein when the terminal starts the SAR reduction mechanism, the signal conduction power of the terminal is reduced, which solves the technical problem of reducing the terminal SAR by increasing hardware cost or sacrificing hardware performance in the related art, and achieves the technical effect of reducing the difficulty and cost of hardware design. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0016] Figure 1 is a flow chart of a method for controlling a terminal to reduce an electromagnetic wave absorption ratio provided by an embodiment of the present invention; and

[0017] Figure 2 is a flow chart of a method for dividing a capacitive screen into areas to control a terminal to reduce an electromagnetic wave absorption ratio provided by an embodiment of the present invention;

[0018] Figure 3 It is a schematic diagram of a device for controlling a terminal to reduce an electromagnetic wave absorption ratio provided according to an embodiment of the present invention. DETAILED DESCRIPTION

[0019] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0020] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0021] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so as to describe the embodiments of the present invention described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0022] For the convenience of description, some nouns or terms involved in the embodiments of the present invention are explained below:

[0023] SAR: Specific Absorption Rate, the electromagnetic wave absorption ratio. For example, taking the radiation from a mobile phone as an example, the SAR generated by a mobile phone refers to the ratio of radiation absorbed by the soft tissue of the human head. The lower the SAR value, the less radiation is absorbed by the human brain.

[0024] TP: Touch panel, touch screen, capacitive screen.

[0025] According to an embodiment of the present invention, a method for controlling a terminal to reduce an electromagnetic wave absorption ratio is provided.

[0026] Figure 1 is a flow chart of a method for controlling a terminal to reduce an electromagnetic wave absorption ratio according to an embodiment of the present invention. Figure 1 As shown, the invention comprises the following steps:

[0027] Step S101, when a spatial displacement of the terminal is detected, obtaining a change in charge on the capacitive screen, wherein a capacitive screen is provided on the surface of the terminal;

[0028] Step S102, when the change in charge is greater than or equal to a preset threshold, the terminal is controlled to start a mechanism to reduce the electromagnetic wave absorption ratio, wherein when the terminal starts the SAR reduction mechanism, the signal conduction power of the terminal is reduced.

[0029] As described above, in the embodiment of the present application, the capacitive screen on the terminal is used to sense the change in capacitance to determine the distance between the human body and the terminal, thereby achieving the purpose of controlling the terminal to control SAR.

[0030] It should be noted that in the embodiments of the present application, the terminal is described by taking a walkie-talkie as an example. The above method provided by the present application can be applied to terminals used in various other fields, and the specific application in other fields will not be described in detail here.

[0031] Optionally, when determining that the terminal has undergone spatial displacement, before determining the amount of change in charge on the capacitive screen, detecting whether the terminal has undergone spatial displacement is performed in the following manner: receiving a voltage signal output by a gravity sensing module of the terminal; when a change in the voltage signal is detected, determining that the terminal has undergone spatial displacement, wherein when the spatial displacement of the gravity sensing module changes, the voltage signal output by the gravity sensing module changes.

[0032] As mentioned above, in the present application, a gravity sensing module is provided on the main board of the terminal, wherein the gravity sensing module is integrated by a gravity sensor and a piezoelectric crystal.

[0033] Specifically, in the embodiments of the present application, the piezoelectric effect is utilized, and when the direction of the terminal changes, the force exerted by the gravity sensor on the piezoelectric crystals in different directions also changes accordingly, and the piezoelectric crystals output a piezoelectric signal different from the previous output, thereby determining that the direction of the terminal has changed. Furthermore, this characteristic is used to determine whether the terminal has been picked up.

[0034] It should be noted that the spatial displacement in the present application includes at least horizontal displacement, vertical displacement and angular displacement. If it is a horizontal displacement, the gravity sensor does not work. In the present application, it will not be determined that the terminal is picked up due to the horizontal displacement. Therefore, the horizontal displacement of the terminal in the present application is not within the scope of consideration of the present application.

[0035] Therefore, in the present application, the displacement caused by the gravity sensor due to spatial displacement is the situation considered by the present application. Therefore, when it is detected that the output piezoelectric signal is different, it can be determined that the direction of the terminal has changed.

[0036] Optionally, when spatial displacement of the terminal is detected, before obtaining the change in charge on the capacitive screen, the method includes: receiving a drive signal generated by a preset chip for controlling the capacitive screen; and determining an initial charge generated on the capacitive screen based on the drive signal.

[0037] Specifically, in this embodiment, the capacitive screen controls the preset chip to periodically generate a driving signal. When the capacitive screen does not receive a new force applied, the driving signal remains unchanged, and the initial charge amount generated on the capacitive screen remains unchanged.

[0038] As described above, the driving signal is received by the receiving electrode, and the charge generated by the capacitive screen is measured by the driving signal received by the receiving electrode.

[0039] Optionally, when spatial displacement of the terminal is detected, obtaining the change in charge on the capacitive screen includes: when spatial displacement of the terminal is detected, measuring a target charge generated on the capacitive screen; obtaining a difference between the target charge and the initial charge, and determining the difference as the change in charge.

[0040] As mentioned above, when the terminal is determined to be picked up, that is, the position and direction of the terminal changes, the capacitive screen receives a new force applied, that is, the capacitive screen is pressed, which is equivalent to introducing a new capacitance for the electrode, thereby changing the charge measured by the receiving electrode, that is, the target charge, and then determining the charge change on the capacitive screen through the initial charge and the target charge, and then the present application determines the distance between the human body and the terminal through the change in capacitance of the capacitive screen.

[0041] It should be noted that after the gravity sensor senses the position change, the terminal will turn on the SAR reduction mechanism and the touch screen will sense the change in capacitance to determine the distance between the human body and the terminal. A positive change in charge indicates that the terminal is close to the human body, and a negative change in charge indicates that the terminal is far away from the human body.

[0042] Therefore, whether the terminal is picked up is determined by determining the charge change on the capacitive screen. It should be noted that there are many types of terminal picking up. Only when it is determined that the terminal is picked up and the charge change on the capacitive screen is detected to be greater than or equal to the preset threshold, the terminal is controlled to start the SAR reduction mechanism.

[0043] As described above, when the change in charge is greater than or equal to the preset threshold, the terminal achieves the effect of timely starting the SAR reduction function without introducing a new hardware structure and without increasing the hardware cost.

[0044] As described above, the gravity sensor is first used to sense the change in the spatial position of the terminal. If the position does not change, the touch screen will not report the change in capacitance, and the terminal will not start the SAR reduction mechanism.

[0045] Optionally, when spatial displacement of the terminal is detected, obtaining the change in charge on the capacitive screen further includes: dividing the capacitive screen into multiple sub-areas; and when it is determined that spatial displacement of the terminal occurs, respectively determining multiple charge change amounts on the multiple sub-areas.

[0046] Optionally, when the change in charge is greater than or equal to a preset threshold, the control terminal starts a mechanism to reduce the electromagnetic wave absorption ratio, including: when it is detected that the corresponding charge change in any sub-area is greater than or equal to a preset threshold, the control terminal starts a mechanism to reduce the electromagnetic wave absorption ratio.

[0047] Specifically, in another optional embodiment of the present application, the capacitive screen is partitioned into multiple sub-areas. When it is detected that the charge change in any sub-area of ​​the capacitive screen of the terminal is greater than or equal to a preset threshold, the terminal starts the SRA reduction mechanism.

[0048] like Figure 2 As shown, Figure 2A flowchart of a method for dividing a capacitive screen into regions to control a terminal to reduce an electromagnetic wave absorption ratio. Preferably, the capacitive screen is divided into region A and region B, specifically comprising the following steps:

[0049] Step 201: Determine whether the terminal meets condition 1, where condition 1 is that the gravity sensing module senses that the terminal has spatial displacement;

[0050] Step 202: When the terminal meets condition 1, the charge change of the capacitive screen is detected in sections;

[0051] Step 203: If the charge change in area A or area B reaches a preset threshold, the SAR power is reduced, and the conduction power of the terminal returns to a safe power range;

[0052] Step 204: When the charge change in area A or area B of the capacitive screen is less than a preset threshold, the conduction power returns to normal, and the terminal exits the SAR reduction mechanism;

[0053] Step 205: End.

[0054] Optionally, the capacitive screen is divided into two or three areas. Usually, the area close to the ear of the walkie-talkie mobile phone terminal is determined as one area, and the handheld part of the walkie-talkie mobile phone terminal during a call is determined as the second area. By dividing the capacitive screen into areas, the change in charge on the capacitive screen can be detected more accurately. Therefore, through the above means, the capacitive screen can be divided into areas according to people's daily usage habits to detect changes in capacitance, improve judgment accuracy, speed up the start-up time, and improve detection sensitivity.

[0055] It should also be noted that when the charge change of the capacitive screen reaches a preset threshold, the terminal starts the SAR reduction mechanism. After the SAR reduction mechanism is turned on, the terminal is controlled to reduce the signal conduction power, and the conduction power returns to a safe range, avoiding the technical effect of reducing the conduction power by modifying the antenna.

[0056] Optionally, when it is detected that the charge change of the capacitive screen is less than a preset threshold, the conduction power of the terminal returns to normal, and the terminal is controlled to launch a SAR reduction mechanism.

[0057] A method for controlling a terminal to reduce an electromagnetic wave absorption ratio is provided in an embodiment of the present invention. When a spatial displacement of the terminal is detected, a change in charge on a capacitive screen is obtained; when the change in charge is greater than or equal to a preset threshold, the terminal is controlled to start a mechanism to reduce the electromagnetic wave absorption ratio. When the terminal starts the mechanism to reduce the SAR, the signal conduction power of the terminal is reduced, which solves the technical problem of reducing the terminal SAR by increasing hardware cost or sacrificing hardware performance in related technologies, and achieves the technical effect of reducing the difficulty and cost of hardware design.

[0058] It should be noted that the steps shown in the flowcharts of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions, and that, although a logical order is shown in the flowcharts, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0059] The present invention also provides a terminal, the outer surface of which is provided with a capacitive screen, characterized in that the terminal includes: a memory and a processor; wherein the memory is connected to the processor and is used to store programs and data generated during the running of the programs, and the programs are used to execute a method for controlling a terminal to reduce an electromagnetic wave absorption ratio according to any one of claims 1 to 6; and the processor is used to run the programs.

[0060] Optionally, the terminal includes: a gravity sensing module, which is arranged on the main board of the terminal and consists of a gravity sensor and a piezoelectric crystal. When the terminal undergoes spatial displacement, the force exerted by the gravity sensor on the piezoelectric crystal changes and the piezoelectric crystal is controlled to output different piezoelectric signals based on the changed force.

[0061] Optionally, the terminal also includes: a preset chip, arranged on the main board of the terminal, used to control the preset chip to periodically generate a driving signal through the capacitive screen; a receiving electrode, used to receive the driving signal and measure the change in charge generated on the capacitive screen based on the driving signal.

[0062] The embodiment of the present invention also provides a device for controlling a terminal to reduce the electromagnetic wave absorption ratio. It should be noted that the device for controlling a terminal to reduce the electromagnetic wave absorption ratio according to the embodiment of the present invention can be used to execute the method for controlling a terminal to reduce the electromagnetic wave absorption ratio provided by the embodiment of the present invention. The following introduces a device for controlling a terminal to reduce the electromagnetic wave absorption ratio provided by the embodiment of the present invention.

[0063] Figure 3 is a schematic diagram of a device for controlling a terminal to reduce an electromagnetic wave absorption ratio according to an embodiment of the present invention. Figure 3 As shown, the device is provided with a capacitive screen, and the device includes: a first acquisition unit 301, which is used to obtain the change in charge on the capacitive screen when a spatial displacement of the terminal is detected; a control unit 302, which is used to control the terminal to start a mechanism to reduce the electromagnetic wave absorption ratio when the change in charge is greater than or equal to a preset threshold, wherein when the terminal starts the SAR reduction mechanism, the signal conduction power of the terminal is reduced.

[0064] Optionally, the device also includes: a first receiving unit, used to receive a voltage signal output by a gravity sensing module of the terminal before determining a change in charge on the capacitive screen when determining that the terminal has undergone spatial displacement; a first determining unit, used to determine that the terminal has undergone spatial displacement when a change in the voltage signal is detected, wherein when the spatial displacement of the gravity sensing module changes, the voltage signal output by the gravity sensing module changes.

[0065] Optionally, the device includes: a second receiving unit, used to receive a driving signal generated by a preset chip for controlling the capacitive screen before obtaining a change in charge on the capacitive screen when spatial displacement of the terminal is detected; and a second determining unit, used to determine an initial charge amount generated on the capacitive screen based on the driving signal.

[0066] Optionally, the first acquisition unit 301 includes: a measurement module, used to measure the target charge amount generated on the capacitive screen when a spatial displacement of the terminal is detected; a first determination module, used to obtain the difference between the target charge amount and the initial charge amount, and determine the difference as the change in charge.

[0067] Optionally, the first acquisition unit 301 further includes: a division module, used to divide the capacitive screen into multiple sub-areas; and a second determination module, used to respectively determine multiple charge change amounts on the multiple sub-areas when determining that the terminal has spatially displaced.

[0068] Optionally, the control unit 302 includes: a control module, configured to control the terminal to start a mechanism for reducing the electromagnetic wave absorption ratio when detecting that the corresponding charge change in any sub-region is greater than or equal to a preset threshold.

[0069] An embodiment of the present invention provides a device for controlling a terminal to reduce an electromagnetic wave absorption ratio. The device uses a first acquisition unit 301 to obtain a change in charge on a capacitive screen when a spatial displacement of the terminal is detected. A control unit 302 is used to control the terminal to start a mechanism to reduce the electromagnetic wave absorption ratio when the change in charge is greater than or equal to a preset threshold. When the terminal starts the mechanism to reduce the SAR, the signal conduction power of the terminal is reduced, which solves the technical problem of reducing the terminal SAR by increasing hardware cost or sacrificing hardware performance in related technologies, and achieves the technical effect of reducing the difficulty and cost of hardware design.

[0070] A device for controlling a terminal to reduce an electromagnetic wave absorption ratio includes a processor and a memory. The first acquisition unit 301 and the like are stored in the memory as program units, and the processor executes the program units stored in the memory to implement corresponding functions.

[0071] The processor includes a kernel, which retrieves the corresponding program unit from the memory. One or more kernels can be set, and the technical problem of reducing the terminal SAR by increasing hardware cost or sacrificing hardware performance in related technologies can be solved by adjusting kernel parameters.

[0072] The memory may include non-permanent memory in a computer-readable medium, random access memory (RAM) and / or non-volatile memory, such as read-only memory (ROM) or flash RAM, and the memory includes at least one memory chip.

[0073] An embodiment of the present invention provides a storage medium on which a program is stored. When the program is executed by a processor, a method for controlling a terminal to reduce an electromagnetic wave absorption ratio is implemented.

[0074] An embodiment of the present invention provides a processor, which is used to run a program. When the program is run, a method for controlling a terminal to reduce an electromagnetic wave absorption ratio is executed.

[0075] An embodiment of the present invention provides a device, which includes a processor, a memory, and a program stored in the memory and executable on the processor. When the processor executes the program, the following steps are implemented: when a spatial displacement of a terminal is detected, a change in charge on a capacitive screen is obtained; when the change in charge is greater than or equal to a preset threshold, the terminal is controlled to start a mechanism to reduce an electromagnetic wave absorption ratio, wherein when the terminal starts the mechanism to reduce SAR, the signal conduction power of the terminal is reduced.

[0076] Optionally, when determining that the terminal has undergone spatial displacement, before determining the amount of change in charge on the capacitive screen, detecting whether the terminal has undergone spatial displacement is performed in the following manner: receiving a voltage signal output by a gravity sensing module of the terminal; when a change in the voltage signal is detected, determining that the terminal has undergone spatial displacement, wherein when the spatial displacement of the gravity sensing module changes, the voltage signal output by the gravity sensing module changes.

[0077] Optionally, when spatial displacement of the terminal is detected, before obtaining the change in charge on the capacitive screen, the method includes: receiving a drive signal generated by a preset chip for controlling the capacitive screen; and determining an initial charge generated on the capacitive screen based on the drive signal.

[0078] Optionally, when spatial displacement of the terminal is detected, obtaining the change in charge on the capacitive screen includes: when spatial displacement of the terminal is detected, measuring a target charge generated on the capacitive screen; obtaining a difference between the target charge and the initial charge, and determining the difference as the change in charge.

[0079] Optionally, when spatial displacement of the terminal is detected, obtaining the change in charge on the capacitive screen further includes: dividing the capacitive screen into multiple sub-areas; and when it is determined that spatial displacement of the terminal occurs, respectively determining multiple charge change amounts on the multiple sub-areas.

[0080] Optionally, when the change in charge is greater than or equal to a preset threshold, the control terminal starts a mechanism to reduce the electromagnetic wave absorption ratio, including: when it is detected that the corresponding charge change in any sub-area is greater than or equal to a preset threshold, the control terminal starts a mechanism to reduce the electromagnetic wave absorption ratio.

[0081] The devices in this article can be servers, PCs, PADs, mobile phones, etc.

[0082] The present invention also provides a computer program product, which, when executed on a data processing device, is suitable for executing a program that is initialized with the following method steps: when a spatial displacement of the terminal is detected, obtaining a change in charge on the capacitive screen; when the change in charge is greater than or equal to a preset threshold, controlling the terminal to start a mechanism to reduce the electromagnetic wave absorption ratio, wherein when the terminal starts the SAR reduction mechanism, the signal conduction power of the terminal is reduced.

[0083] Optionally, when determining that the terminal has undergone spatial displacement, before determining the amount of change in charge on the capacitive screen, detecting whether the terminal has undergone spatial displacement is performed in the following manner: receiving a voltage signal output by a gravity sensing module of the terminal; when a change in the voltage signal is detected, determining that the terminal has undergone spatial displacement, wherein when the spatial displacement of the gravity sensing module changes, the voltage signal output by the gravity sensing module changes.

[0084] Optionally, when spatial displacement of the terminal is detected, before obtaining the change in charge on the capacitive screen, the method includes: receiving a drive signal generated by a preset chip for controlling the capacitive screen; and determining an initial charge generated on the capacitive screen based on the drive signal.

[0085] Optionally, when spatial displacement of the terminal is detected, obtaining the change in charge on the capacitive screen includes: when spatial displacement of the terminal is detected, measuring a target charge generated on the capacitive screen; obtaining a difference between the target charge and the initial charge, and determining the difference as the change in charge.

[0086] Optionally, when spatial displacement of the terminal is detected, obtaining the change in charge on the capacitive screen further includes: dividing the capacitive screen into multiple sub-areas; and when it is determined that spatial displacement of the terminal occurs, respectively determining multiple charge change amounts on the multiple sub-areas.

[0087] Optionally, when the change in charge is greater than or equal to a preset threshold, the control terminal starts a mechanism to reduce the electromagnetic wave absorption ratio, including: when it is detected that the corresponding charge change in any sub-area is greater than or equal to a preset threshold, the control terminal starts a mechanism to reduce the electromagnetic wave absorption ratio.

[0088] Those skilled in the art will appreciate that embodiments of the present invention may be provided as methods, systems, or computer program products. Therefore, the present invention may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0089] The present invention is described with reference to flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present invention. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0090] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0091] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process in the computer or other programmable device. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0092] In a typical configuration, a computing device includes one or more processors (CPU), input / output interfaces, network interfaces, and memory.

[0093] The memory may include non-permanent memory in a computer-readable medium, random access memory (RAM) and / or non-volatile memory in the form of read-only memory (ROM) or flash RAM. The memory is an example of a computer-readable medium.

[0094] Computer readable media include permanent and non-permanent, removable and non-removable media that can be used to store information by any method or technology. Information can be computer readable instructions, data structures, program modules or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, compact disc read-only memory (CD-ROM), digital versatile disc (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices or any other non-transmission media that can be used to store information that can be accessed by a computing device. As defined herein, computer readable media does not include temporary computer readable media (transitory media), such as modulated data signals and carrier waves.

[0095] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the process, method, commodity or device including the elements.

[0096] It will be appreciated by those skilled in the art that embodiments of the present invention may be provided as methods, systems or computer program products. Therefore, the present invention may take the form of a complete hardware embodiment, a complete software embodiment or an embodiment combining software and hardware. Moreover, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program codes.

[0097] The above are only embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A method for controlling a terminal to reduce an electromagnetic wave absorption ratio, characterized in that: A capacitive screen is provided on an outer surface of the terminal, and the method includes: When spatial displacement of the terminal is detected, obtaining a change in charge on the capacitive screen; When the change in the charge is greater than or equal to a preset threshold, controlling the terminal to start a mechanism for reducing the electromagnetic wave absorption ratio, wherein when the terminal starts the mechanism for reducing SAR, the signal conduction power of the terminal is reduced; The detecting that the terminal has undergone spatial displacement includes: receiving a voltage signal output by a gravity sensing module of the terminal, wherein the gravity sensing module is integrated with a gravity sensor and a piezoelectric crystal; When a change in the voltage signal is detected, determining that the terminal has undergone the spatial displacement, so as to determine that the terminal has been picked up, wherein the spatial displacement includes vertical displacement and angular displacement, and when the spatial displacement of the gravity sensing module changes, the voltage signal output by the gravity sensing module changes; Obtaining a change in charge on the capacitive screen includes: Dividing the capacitive screen into a plurality of sub-areas, wherein the plurality of sub-areas include two or three areas, determining an area where the terminal is close to the ear as one area, and determining a handheld portion of the terminal during a call as another area; When determining that the terminal has spatially displaced, respectively determining a plurality of charge change amounts on a plurality of the sub-regions; When the change in the charge is greater than or equal to a preset threshold, controlling the terminal to start a mechanism for reducing the electromagnetic wave absorption ratio includes: When it is detected that the charge change corresponding to any of the sub-areas is greater than or equal to the preset threshold, controlling the terminal to start a mechanism to reduce the electromagnetic wave absorption ratio; When spatial displacement of the terminal is detected, before obtaining the change in charge on the capacitive screen, the method includes: receiving a driving signal generated by the capacitive screen control preset chip; and determining the initial charge generated on the capacitive screen based on the driving signal.

2. The method according to claim 1, characterized in that When spatial displacement of the terminal is detected, obtaining a change in charge on the capacitive screen includes: When spatial displacement of the terminal is detected, measuring a target charge amount generated on the capacitive screen; A difference between the target charge amount and the initial charge amount is obtained, and the difference is determined as the charge change amount.

3. A device for reducing electromagnetic wave absorption ratio, characterized in that: The device is provided with a capacitive screen, and the device comprises: A first acquiring unit is configured to acquire a change in charge on the capacitive screen when a spatial displacement of the terminal is detected; a control unit, configured to control the terminal to activate a mechanism for reducing the electromagnetic wave absorption ratio when the change in the charge is greater than or equal to a preset threshold, wherein when the terminal activates the mechanism for reducing the SAR, the signal conduction power of the terminal is reduced; The detecting that the terminal has undergone spatial displacement includes: receiving a voltage signal output by a gravity sensing module of the terminal, wherein the gravity sensing module is integrated with a gravity sensor and a piezoelectric crystal; When a change in the voltage signal is detected, determining that the terminal has undergone the spatial displacement, so as to determine that the terminal has been picked up, wherein when the spatial displacement of the gravity sensing module changes, the voltage signal output by the gravity sensing module changes, and the spatial displacement includes vertical displacement and angular displacement; Obtaining a change in charge on the capacitive screen includes: Dividing the capacitive screen into a plurality of sub-areas, wherein the plurality of sub-areas include two or three areas, determining an area where the terminal is close to the ear as one area, and determining a handheld portion of the terminal during a call as another area; When determining that the terminal has spatially displaced, respectively determining a plurality of charge change amounts on a plurality of the sub-regions; When the change in the charge is greater than or equal to a preset threshold, controlling the terminal to start a mechanism for reducing the electromagnetic wave absorption ratio includes: When it is detected that the charge change corresponding to any of the sub-areas is greater than or equal to the preset threshold, controlling the terminal to start a mechanism to reduce the electromagnetic wave absorption ratio; The device also includes a second receiving unit, which is used to receive a driving signal generated by the capacitive screen control preset chip before obtaining the change in charge on the capacitive screen when spatial displacement of the terminal is detected; and a second determining unit, which is used to determine the initial charge generated on the capacitive screen based on the driving signal.

4. A terminal having a capacitive screen provided on its outer surface, characterized in that: The terminal includes: A memory and a processor; wherein the memory is connected to the processor and is used to store a program and data generated during the execution of the program, wherein the program is used to execute the method for controlling a terminal to reduce an electromagnetic wave absorption ratio according to any one of claims 1 to 2; and the processor is used to execute the program; The gravity sensing module is arranged on the main board of the terminal and consists of a gravity sensor and a piezoelectric crystal. When the terminal undergoes spatial displacement, the force exerted by the gravity sensor on the piezoelectric crystal changes, and the piezoelectric crystal is controlled to output different piezoelectric signals based on the changed force. The terminal according to claim 4 , wherein: The terminal further includes: A preset chip is provided on the main board of the terminal and is used to control the preset chip to periodically generate a driving signal through the capacitive screen; The receiving electrode is used to receive the driving signal and measure the change in charge generated on the capacitive screen according to the driving signal.

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