CN115348653A

CN115348653A - Method and apparatus for reducing specific absorption rate of electromagnetic wave, medium, and electronic device

Info

Publication number: CN115348653A
Application number: CN202110529069.3A
Authority: CN
Inventors: 罗益州; 王佳
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2021-05-14
Filing date: 2021-05-14
Publication date: 2022-11-15
Also published as: WO2022237411A1

Abstract

The disclosure provides a method for reducing specific absorption rate of electromagnetic waves, a device for reducing specific absorption rate of electromagnetic waves, a computer readable medium and an electronic device, and relates to the technical field of radiation adjustment. The method comprises the following steps: determining a plurality of identification areas on the terminal device based on the position of the sensing plate; acquiring induction data corresponding to each identification area, and determining the identification area corresponding to the induction data as a target identification area when the induction data meet a first preset condition; and adjusting the transmitting power of the antenna contained in the target identification area according to the induction data corresponding to the target identification area so as to reduce the total transmitting power of the target identification area. This is disclosed through the position based on tablet discerns regional division to terminal equipment for can carry out different processing to the antenna in the discernment region of difference according to the difference of discernment regional response data, and then avoid whole terminal equipment's all the problem that leads to the communication performance loss by rolling back to a certain extent.

Description

Method and apparatus for reducing specific absorption rate of electromagnetic wave, medium, and electronic device

Technical Field

The present disclosure relates to the field of radiation adjustment technologies, and in particular, to a method for reducing specific absorption rate of electromagnetic waves, an apparatus for reducing specific absorption rate of electromagnetic waves, a computer-readable medium, and an electronic device.

Background

In order to protect human health and safety, mobile terminals at home and abroad need to meet the requirement of electromagnetic wave Specific Absorption Rate (SAR) compliance. In order to make SAR compliance, many manufacturers and developers will directly perform board level back-off of the antenna in the actual usage scenario. Meanwhile, in order to take account of communication experience, part of manufacturers connect 1-2 antennas of the communication equipment to the SAR sensor, and judge whether board-level backspacing is performed on all the antennas according to the 'approaching' or 'departing' scene identified by the SAR sensor.

With the progress of science and technology, communication technologies such as 5G are continuously developed. In order to meet the demand for fast communication such as 5G, it is necessary to enhance the communication performance of a terminal device such as a mobile phone. Therefore, the number of antennas in a terminal device such as a 5G mobile phone is increasing. At this time, if a management and control mode of "board level rollback" in the related art is used, although the operation is simple, the communication performance is lost, and the actual communication use experience of the user is affected.

Disclosure of Invention

The present disclosure is directed to a method, an apparatus, a computer-readable medium, and an electronic device for reducing specific absorption rate of electromagnetic waves, so as to avoid, at least to some extent, the problem of communication performance loss caused by reducing specific absorption rate of electromagnetic waves.

According to a first aspect of the present disclosure, there is provided a method for reducing specific absorption rate of electromagnetic waves, applied to a terminal device including a plurality of induction boards, the method including: determining a plurality of identification areas on the terminal device based on the position of the sensing plate; each identification area comprises at least one induction plate; acquiring induction data corresponding to each identification area, and determining the identification area corresponding to the induction data as a target identification area when the induction data meet a first preset condition; and adjusting the transmitting power of the antenna contained in the target identification area according to the induction data corresponding to the target identification area so as to reduce the total transmitting power of the target identification area and further reduce the specific absorption rate of electromagnetic waves.

According to a second aspect of the present disclosure, there is provided an apparatus for reducing specific absorption rate of electromagnetic waves, applied to a terminal device including a plurality of sensing pads, the apparatus comprising: the area dividing module is used for determining a plurality of identification areas on the terminal equipment based on the position of the induction plate; each identification area comprises at least one induction plate; the target determining module is used for acquiring induction data corresponding to each identification area and determining the identification area corresponding to the induction data as a target identification area when the induction data meet a first preset condition; and the power adjusting module is used for adjusting the transmitting power of the antenna contained in the target identification area according to the induction data corresponding to the target identification area so as to reduce the total transmitting power of the target identification area and further reduce the specific absorption rate of electromagnetic waves.

According to a third aspect of the present disclosure, a computer-readable medium is provided, on which a computer program is stored, which computer program, when being executed by a processor, is adapted to carry out the above-mentioned method.

According to a fourth aspect of the present disclosure, there is provided an electronic apparatus, comprising:

a processor; and

a memory for storing one or more programs that, when executed by the one or more processors, cause the one or more processors to implement the method described above.

According to the method for reducing the specific absorption rate of the electromagnetic waves, provided by the embodiment of the disclosure, a plurality of identification areas are determined on the terminal device through the positions of the induction plates, then the target identification area needing to be adjusted is determined according to induction data of each identification area, and then the sending power of the antenna contained in the target identification area is adjusted, so that the total transmitting power of the target identification area is reduced, and further the SAR is reduced. According to the technical scheme, the identification area of the terminal equipment is divided according to the position based on the induction plate, so that different processing can be performed on the antennas in different identification areas according to different identification area induction data, and the problem that all the antennas of the whole terminal equipment are all backed to cause communication performance loss is avoided to a certain extent.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the disclosure. It is to be understood that the drawings in the following description are merely exemplary of the disclosure, and that other drawings may be derived from those drawings by one of ordinary skill in the art without the exercise of inventive faculty. In the drawings:

FIG. 1 illustrates a schematic diagram of an exemplary system architecture to which embodiments of the present disclosure may be applied;

FIG. 2 shows a schematic diagram of an electronic device to which embodiments of the present disclosure may be applied;

FIG. 3 schematically illustrates a flow chart of a method of reducing specific absorption rate of electromagnetic waves in an exemplary embodiment of the disclosure;

fig. 4 schematically illustrates an identification area diagram of a terminal device in an exemplary embodiment of the present disclosure;

fig. 5 is a schematic diagram schematically illustrating an antenna hot spot distribution proximity in an exemplary embodiment of the present disclosure;

FIG. 6 schematically illustrates an identification area of a target antenna including an unassociated induction plate in an exemplary embodiment of the present disclosure;

FIG. 7 is a schematic diagram illustrating a distribution of sensor board positions of a mobile phone according to an exemplary embodiment of the disclosure;

FIG. 8 schematically illustrates a combination of sensing plate states corresponding to an identification area in an exemplary embodiment of the disclosure;

FIG. 9 schematically illustrates another sensing plate state combination corresponding to an identification area in an exemplary embodiment of the disclosure;

FIG. 10 is a schematic diagram illustrating a sensor board position distribution of another exemplary embodiment of the present disclosure;

FIG. 11 schematically illustrates a combination of sensing plate states corresponding to yet another identification area in an exemplary embodiment of the present disclosure;

fig. 12 schematically illustrates an identification area of a further handset in an exemplary embodiment of the disclosure;

FIG. 13 schematically illustrates a combination of sensing plate states corresponding to yet another identification area in an exemplary embodiment of the present disclosure;

fig. 14 schematically illustrates an identification area diagram of yet another handset in an exemplary embodiment of the present disclosure;

fig. 15 schematically shows a composition diagram of an apparatus for reducing specific absorption rate of electromagnetic waves in an exemplary embodiment of the present disclosure.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

Furthermore, the drawings are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus their repetitive description will be omitted. Some of the block diagrams shown in the figures are functional entities and do not necessarily correspond to physically or logically separate entities. These functional entities may be implemented in the form of software, or in one or more hardware modules or integrated circuits, or in different networks and/or processor devices and/or microcontroller devices.

Fig. 1 is a schematic diagram illustrating a system architecture of an exemplary application environment to which a method and apparatus for reducing specific absorption rate of electromagnetic waves according to an embodiment of the present disclosure may be applied.

As shown in fig. 1, the system architecture 100 may include one or more of

terminal devices

101, 102, 103, a network 104, and a server 105. The network 104 serves as a medium for providing communication links between the

terminal devices

101, 102, 103 and the server 105. Network 104 may include various connection types, such as wired, wireless communication links, or fiber optic cables, among others. The

terminal devices

101, 102, 103 may be electronic devices having a function of communicating through an antenna, including but not limited to desktop computers, portable computers, smart phones, tablet computers, and the like. It should be understood that the number of terminal devices, networks, and servers in fig. 1 is merely illustrative. There may be any number of terminal devices, networks, and servers, as desired for implementation. For example, server 105 may be a server cluster comprised of multiple servers, and the like.

The method for reducing the specific absorption rate of electromagnetic waves provided by the embodiment of the present disclosure is generally executed by the

terminal equipment

101, 102, 103, and accordingly, the apparatus for reducing the specific absorption rate of electromagnetic waves is generally disposed in the

terminal equipment

101, 102, 103. However, it is easily understood by those skilled in the art that the method for reducing the specific absorption rate of electromagnetic waves provided by the embodiment of the present disclosure may also be performed by the server 105, and accordingly, the apparatus for reducing the specific absorption rate of electromagnetic waves may also be disposed in the server 105, which is not particularly limited in the exemplary embodiment. For example, in an exemplary embodiment, the

terminal devices

101, 102, 103 may collect sensing data through a plurality of sensing boards thereon, and then transmit the positions of the sensing boards and the collected sensing data to the server 105 through the network 104, the server 105 determines the target identification area, and correspondingly controls the

terminal devices

101, 102, 103 to adjust the transmitting power of antennas thereon through the network 104, and so on.

The exemplary embodiment of the present disclosure provides an electronic device for implementing a method of reducing specific absorption rate of electromagnetic waves, which may be a

terminal device

101, 102, 103 or a server 105 in fig. 1. The electronic device comprises at least a processor and a memory for storing executable instructions of the processor, the processor being configured to perform the method of reducing specific absorption rate of electromagnetic waves via execution of the executable instructions.

The following takes the mobile terminal 200 in fig. 2 as an example, and exemplifies the configuration of the electronic device. It will be appreciated by those skilled in the art that the configuration of figure 2 can also be applied to fixed type devices, in addition to components specifically intended for mobile purposes. In other embodiments, mobile terminal 200 may include more or fewer components than shown, or some components may be combined, some components may be split, or a different arrangement of components. The illustrated components may be implemented in hardware, software, or a combination of software and hardware. The interfacing relationship between the components is only schematically illustrated and does not constitute a structural limitation of the mobile terminal 200. In other embodiments, the mobile terminal 200 may also interface differently than shown in fig. 2, or a combination of multiple types of interface.

As shown in fig. 2, the mobile terminal 200 may specifically include: a processor 210, an internal memory 221, an external memory interface 222, a Universal Serial Bus (USB) interface 230, a charging management module 240, a power management module 241, a battery 242, an antenna 1, an antenna 2, a mobile communication module 250, a wireless communication module 260, an audio module 270, a speaker 271, a microphone 272, a microphone 273, an earphone interface 274, a sensor module 280, a display 290, a camera module 291, an indicator 292, a motor 293, a button 294, and a Subscriber Identity Module (SIM) card interface 295. Wherein the sensor module 280 may include a depth sensor 2801, a pressure sensor 2802, a gyroscope sensor 2803, and the like.

Processor 210 may include one or more processing units, such as: the Processor 210 may include an Application Processor (AP), a modem Processor, a Graphics Processor (GPU), an Image Signal Processor (ISP), a controller, a video codec, a Digital Signal Processor (DSP), a baseband Processor, and/or a Neural-Network Processing Unit (NPU), and the like. The different processing units may be separate devices or may be integrated into one or more processors.

The wireless communication function of the mobile terminal 200 may be implemented by the antenna 1, the antenna 2, the mobile communication module 250, the wireless communication module 260, a modem processor, a baseband processor, and the like. Wherein, the antenna 1 and the antenna 2 are used for transmitting and receiving electromagnetic wave signals; the mobile communication module 250 may provide a solution including wireless communication of 2G/3G/4G/5G, etc. applied to the mobile terminal 200; the modem processor may include a modulator and a demodulator; the Wireless communication module 260 may provide a solution for Wireless communication including a Wireless Local Area Network (WLAN) (e.g., a Wireless Fidelity (Wi-Fi) network), bluetooth (BT), and the like, applied to the mobile terminal 200. In some embodiments, antenna 1 of the mobile terminal 200 is coupled to the mobile communication module 250 and antenna 2 is coupled to the wireless communication module 260, such that the mobile terminal 200 may communicate with networks and other devices via wireless communication techniques.

In some embodiments, a mobile terminal may include multiple sensing pads, each of which may be associated with at least one antenna. Correspondingly, the mobile terminal may also include multiple antennas. In order to correlate the data collected by the sensor board with the antenna, the sensor board and the antenna are usually provided at the same position and in a common body. In some special cases, however, the sensing plate may be disposed close to the antenna.

The SAR sensor 2801 is used to detect whether a human body is near the antenna within a certain range from the antenna. The human body belongs to the conductor, and when being close to antenna (metal), the capacitance value that the antenna sensed can change, and SAR sensor can detect human proximity degree through the capacitance change that detects the antenna.

The proximity light sensor 2802 may be used for object detection. For example, a Light Emitting Diode (LED) and a photodetector or photodiode may be included. Wherein the light emitting diode may be an infrared light emitting diode. The mobile terminal 200 emits infrared light outward through the light emitting diode and detects infrared reflected light from a nearby object using the photodiode. When sufficient reflected light is detected, it can be determined that there is an object near the mobile terminal 200. When insufficient reflected light is detected, the mobile terminal 200 may determine that there is no object near the mobile terminal 200. The mobile terminal 200 can utilize the proximity light sensor 2802 to detect that the user holds the mobile terminal 200 close to the ear for talking, so as to automatically turn off the screen to achieve the purpose of saving power. The proximity light sensor 2802 may also be used in a holster mode, with the pocket mode automatically unlocking and locking the screen.

In some embodiments, the sensing data may be collected by sensors such as the SAR sensor 2801 or the proximity light sensor 2802 described above.

In some embodiments, since SAR is highly correlated with the distance between the user and the emission source, the sensing data may be a user scenario determined based on a change in the distance between the user and the mobile terminal, such as the user being in a close-in scenario, or the user being in a far-out scenario.

The gyro sensor 2803 may be used to determine a motion gesture of the mobile terminal 200. In some embodiments, the angular velocity of the mobile terminal 200 about three axes (i.e., x, y, and z axes) may be determined by the gyro sensor 2803, thereby determining the motion attitude of the mobile terminal 200. In some embodiments, the preset operation may be determined as an operation to place the mobile terminal 200 in a specific posture. For example, when the user positions the mobile terminal near the ear through motion gesture determination, the division strategy may be determined to determine the upper and lower two recognition areas in the mobile terminal.

In addition, sensors with other functions, such as a pressure sensor, a distance sensor, an air pressure sensor, a magnetic sensor, an acceleration sensor, a depth sensor, a proximity light sensor, a fingerprint sensor, a temperature sensor, a touch sensor, an ambient light sensor, a bone conduction sensor, etc., may be provided in the sensor module 280 according to actual needs.

Specific Absorption Rate (SAR) refers to the amount of electromagnetic radiation energy absorbed by a substance per unit mass per unit time. In the currently commonly used 5G mobile terminal, the SAR value needs to be regulated and controlled according to local regulations in both domestic and overseas markets. The traditional complete machine SAR control mode of direct board level backspacing realizes the aim of reducing SAR by reducing the transmitting power of a complete machine antenna. Although the method is simple to operate, the communication performance is lost, and the actual communication use experience of the user is influenced. The use of sensor-reduced SAR is indeed an optimization option, considering achieving a balance in SAR and communication performance. However, in 5G terminal equipment, the number of antennas is increasing, and the conventional method that one sensor is connected with 1 or 2 sensing boards (equivalent to being associated with two antennas) to reduce SAR cannot meet the requirement, and meanwhile, the communication performance of a large number of antennas is lost, so that comprehensive linkage use of multiple antennas and multiple sensing boards is urgently needed to be developed.

In view of one or more of the above problems, the present exemplary embodiment provides a method for reducing specific absorption rate of electromagnetic waves by using multiple sensor boards (corresponding to associated multiple antennas) together, which can avoid loss of communication performance based on the SAR safety regulations. The method for reducing the specific absorption rate of electromagnetic waves may be applied to the server 105, and may also be applied to one or more of the

terminal devices

101, 102, and 103, which is not particularly limited in this exemplary embodiment.

In order to obtain the sensing data, the terminal device may include a plurality of sensing boards for collecting the sensing data. The sensing board may be a sensor for detecting sensing data. For example, when the sensing data is whether the user is close to the terminal device, the proximity light sensor may be used to detect the user distance, and then determine whether the user is close to the terminal device or far from the terminal device. In some embodiments, the sensing data may also be the distance between the user and the terminal device, or whether the user exerts pressure on the terminal device, or the like. When the response data is different, the tablet that adopts can be the tablet that is used for gathering different response data, for example, whether exert the response data of pressure to terminal equipment to the user, can gather through the tablet that pressure sensor corresponds.

Referring to fig. 3, the method for reducing specific absorption rate of electromagnetic waves may include the following steps S310 to S330:

in step S310, a plurality of identification areas are determined on the terminal device based on the position of the sensing board.

In order to obtain sensing data corresponding to each identification area, at least one sensing board needs to be included in each identification area.

In an exemplary embodiment, in the case that the positions of the sensing boards of the terminal devices are different, or the habits of users using the terminal devices are different, and the like, the corresponding SAR of the antennas at different positions on the terminal devices is different under the same transmission power. Therefore, when the identification area is determined on the terminal device based on the position of the sensing board, the determination of the identification area can be performed by different division strategies.

In an exemplary embodiment, when determining the identification area, the corresponding partitioning policy may be determined according to a preset operation of a user. A plurality of identification areas is then determined in the terminal device based on the partitioning strategy and the position of the sensing plate. For example, when the partitioning policy corresponding to the preset operation is to determine the upper and lower partitions on the terminal device, assuming that the position of the sensing board on the terminal device is as shown in fig. 4, the upper recognition area and the lower recognition area as shown in fig. 4 may be determined in the terminal device.

In addition, when the usage habits of users are different or the positions where the sensor boards of the terminal devices are arranged are different, the requirements for dividing the identification areas are also different. At this time, a plurality of identification areas may be determined in the terminal device according to the need. In the case where each sensing board is associated with an antenna, in order to enable all the antennas to be within the adjustment range and the adjustment processes not to conflict with each other, when the identification areas are divided, the identification areas are mutually exclusive, and a set of all the identification areas includes all the sensing boards (that is, each sensing board corresponds to a unique identification area).

In step S320, sensing data corresponding to each identification area is obtained, and when the sensing data meets a first preset condition, the identification area corresponding to the sensing data is determined as a target identification area.

The sensing data may include data corresponding to factors having an effect on SAR. For example, if the SAR is related to the distance of the user from the emission source, the sensing data may include the distance between the user and the emission source; for another example, if the SAR is associated with whether the user is touching the terminal device, the sensing data may include whether the user is touching the terminal device. In addition, in different usage scenarios, the influence factors of the SAR may also be different, and thus different settings may be performed according to the usage scenarios.

In an exemplary embodiment, when sensing data corresponding to an identification area is acquired, a case where one identification area includes a plurality of sensing pads may occur. At this time, for an identification area including a plurality of induction plates, the induction result of each induction plate may be obtained first, and then the induction results of all induction plates in the identification area may be used as the induction data of the identification area.

In an exemplary embodiment, when the sensing data includes a change in the distance between the user and the sensing board, the sensing result may include both a user approaching scene and a user departing scene. The sensing result of the sensing board can be determined according to the distance change between the sensing board and the user. For example, when a change in distance is detected as going from large to small, it may be determined that the user is approaching a scene; conversely, when the distance change is detected to be changed from small to large, it can be determined that the user is far away from the scene. In addition, the determination may be performed by using a relationship between the detection distance and the set distance, and the like, which is not particularly limited in the present disclosure.

In an exemplary embodiment, the sensing data may include a scene of a change in distance between the user and the sensing pad, i.e., whether the sensing pad is currently in a user-close scene or a user-far scene. When the sensing data of the identification area includes sensing results corresponding to the plurality of sensing boards, the first preset condition may include that the sensing result including at least one sensing board in the sensing data corresponding to the identification area is a user approaching scene. In addition, when the sensing data are different, the first preset condition can be set according to requirements.

In step S330, the transmission power of the antenna included in the target identification area is adjusted according to the sensing data corresponding to the target identification area, so as to reduce the total transmission power of the target identification area, thereby reducing the specific absorption rate of electromagnetic waves.

In an exemplary embodiment, after the target identification area is determined, the antenna to be adjusted may be determined in the target identification area according to the sensing data corresponding to the target identification area, and then the transmission power of the antenna to be adjusted is adjusted according to the preset backoff parameter, so as to reduce the total transmission power of the target identification area. It should be noted that, because the target identification area satisfies the first preset condition, all antennas in the target identification area may be directly used as antennas to be adjusted, and then the transmission power of all antennas is backed off by preset back-off parameters, so as to reduce the total reflected power of the entire target identification area, and further achieve the purpose of reducing the SAR.

Furthermore, because the sensing results of each sensing board in the target identification area still have differences, a part of antennas can be correspondingly determined in the target identification area as antennas to be adjusted according to the sensing data of the target identification area. Specifically, the sensing board may be associated with at least one antenna according to the arrangement positions of the sensing board and the antenna. And then, aiming at the induction result of each induction board in the target area, when the induction result meets a second preset condition, determining all antennas associated with the induction boards as the antennas to be adjusted.

When the sensing data includes a distance change scene between the user and the sensing board, the second preset condition may be that the sensing result corresponding to the sensing board is a user approaching scene. In addition, when the sensing data are different, the second preset condition can be set according to requirements.

It should be noted that, in an exemplary embodiment, when the antenna hot spots are distributed close to each other, the same induction board may be associated with multiple antennas. For example, as shown in fig. 5, when two antennas are placed mouth to mouth, that is, two antenna hot spots are distributed close to each other, the hot spots of

ANTs

4 and 8 are close to each other and are uniformly distributed at the gap, and if one of the ANTs 4 is connected to the induction board, the induction board can be used for identifying the close position, not only ANT4 but also ANT8 can be associated. The sensor board is thus associated with

ANTs

4 and 8 simultaneously. If the induction plate recognizes approach, the

ANTs

4 and 8 both go back, and when the induction plate recognizes distance, the

ANTs

4 and 8 both operate in a full power state. The antenna hot spot refers to a position on an antenna where an SAR value is highest by performing SAR detection or simulation on a certain antenna.

In an exemplary embodiment, in order to reduce the position occupied by the sensing boards in the terminal device, the number of sensing boards may be reduced, corresponding to the possibility that the antenna is not associated with a sensing board. At this time, for a target antenna without an associated sensing board, a neighboring sensing board may be determined in the target device area according to the position of the target antenna, and then whether the target antenna needs to be adjusted is determined according to whether the sensing result corresponding to the neighboring sensing board satisfies a second preset condition.

The proximity sensing board can be determined according to the distance from the target antenna, or according to other ways, and the number of the proximity sensing boards may be one or more. It should be noted that, when the number of the adjacent induction boards is multiple, the target antenna may be determined as the antenna to be adjusted when the induction result corresponding to at least one adjacent induction board satisfies the second preset condition. For example, as shown in the identification area of fig. 6, the antenna B is a target antenna not associated with the induction board, and in this case, the induction boards a and C are both adjacent induction boards corresponding to the antenna B according to the distance. When the sensing result of any one of the sensing board a and the sensing board C satisfies the second preset condition, the antenna B may be determined as the antenna to be adjusted.

In addition, under the condition that the user continuously moves, the sensing result corresponding to each sensing board continuously changes, so that the sensing data of the sensing boards can be monitored in real time, and when the sensing data determined as the target identification area changes, so that the sensing data corresponding to the target identification area does not meet a first preset condition, the transmitting power of all antennas contained in the target identification area can be recovered to a preset power, for example, when the sensing data corresponding to the target identification area does not meet the first preset condition, the transmitting power of all antennas contained in the target identification area can be recovered to a full power.

The following describes the technical solution of the embodiment in detail, taking the reduction of the SAR of the mobile phone and the sensing data as the distance change scene between the user and the sensing board as an example:

the SAR sensor of the mobile phone is assumed to be provided with a plurality of detection channels, each detection channel is respectively connected with one induction plate to carry out induction data acquisition, and each antenna works in a full-power state in an initial state. Wherein, the induction plate and the antenna are arranged on the back of the mobile phone.

Example 1

Referring to fig. 7, 3 induction boards are arranged in the whole mobile phone, the distribution positions of the 3 induction boards may be that the induction board 1 and the induction board 2 are in an upper antenna area, the induction board 3 is in a lower antenna area, and each induction board is associated with one antenna.

At this time, each sensing plate of the SAR sensor may be individually identified as an identification area, and the first preset condition may be that the sensing data is a user approaching scene. Taking the sensing board 1 as an example, if the sensing board 1 identifies that the user approaches the scene, the identification area corresponding to the sensing board 1 is the target identification area, and the associated antenna (the antenna to be adjusted) of the sensing board 1 is controlled to perform corresponding antenna level rollback; if the sensing board 1 recognizes that the user is far away from the scene, the recognition area corresponding to the sensing board 1 is not the target recognition area, and the associated antenna of the sensing board 1 is controlled to work in a full power state. In the same way, the

induction boards

2 and 3 are the same control scheme, and the combination of the states of the induction boards 1-3 occupying the rollback table can be seen in fig. 8.

It should be noted that the embodiment of individually identifying each sensing board of the SAR sensor as an identification area may occupy a large number of states in the rollback table. For example, 3 sensor boards would occupy 2 ³ And (4) a state. If more induction boards are arranged in the mobile phone, the required state of the rollback table tends to rise exponentially.

Example 2

To reduce the number of states of the rollback table, a plurality of identification areas may be combined for the induction boards in the mobile phone. Referring to fig. 4, 3 induction plates are arranged in the whole mobile phone, the distribution positions of the 3 induction plates may be that the induction plate 1 and the induction plate 2 are in an upper antenna area, the induction plate 3 is in a lower antenna area, the induction plate 1 and the induction plate 2 in the upper antenna area may be used as an identification area 1, and the induction plate 3 in the lower antenna area may be used as an identification area 2.

At this time, the first preset condition may be that any sensing result in the sensing data is a user approaching scene. Taking the identification area 1 as an example, if the induction result corresponding to the induction board in any 1 identification area 1 is a user approaching scene, the associated antennas of the induction boards (antennas to be adjusted) in the whole identification area 1 are all backed; if the sensing results corresponding to all the sensing boards in the identification area 1 are the user far-away scenes, the associated antennas of the sensing boards in the whole identification area 1 are kept to work under the full-power state. Similarly, the recognition area 2 adopts the same control method to determine the scene of the recognition area 2.

Compared with embodiment 1, this way can save the number of states in the required rollback table (the required number is 4, as shown in fig. 9), and can improve the identification accuracy of the identification area 1, while ensuring that the antenna always operates in a full power state when the user holds the bottom of the handset or holds the top of the handset.

Example 3

In an exemplary embodiment, to reduce the position that the sensing pads occupy in the handset, it may happen that the antenna does not have an associated sensing pad. Referring to the identification area shown in fig. 6, the antennas a and C on both sides adjacent to the antenna B are associated with the sensor boards, but the antenna B in the middle is not associated with the sensor boards.

TABLE 1 induction result of induction board and determined antenna to be adjusted

At this time, the second preset condition may include that the sensing result is that the user approaches the scene. If the induction board a is connected with the antenna a, the induction board C is connected with the antenna C, and when an induction result corresponding to any induction board of the induction board a or the induction board C is that a user approaches a scene, the antenna B can be defaulted to be also an antenna to be adjusted, and the backspacing is needed. And when the sensing results corresponding to the sensing board a and the sensing board C are both the user far away from the scene, the identification area cannot be determined as the target identification area, and the corresponding antenna B cannot be used as the antenna to be adjusted. Thus antennas a, B, C are all kept operating at full power. Specifically, the sensing result of each sensing board and the corresponding determined antenna to be adjusted are shown in table 1.

By the setting mode, the antenna which is not associated with each induction board can be controlled based on the induction result of the adjacent induction board, and the absence of the hardware induction board is optimized based on the default setting mode.

Example 4

In addition, multiple antennas in the mobile phone may be selected to be associated with multiple sensing boards of the SAR sensor, some antennas may not be associated with the sensing boards, or multiple antennas may be associated with the same sensing board of the SAR sensor by approaching a hot spot as shown in fig. 5.

In an exemplary embodiment, the number of the inductive plates in the mobile phone can be expanded to be consistent with the number of the antennas of the mobile phone, for example, 10 antennas are provided for the whole mobile phone, and 10 inductive plates are associated with each other.

As shown in fig. 10, for example, the whole machine has 10 sensing boards 1-10 respectively connected to the control unit of the SAR sensor, where the control unit of the SAR sensor may include 1 SAR sensor or multiple SAR sensors, and the 10 sensing boards represent at least 10 associated antennas. In the aspect of the position distribution of 10 sensing plates, 5 sensing plates are assumed to be distributed in the antenna area of the upper half part of the mobile phone, and 5 sensing plates are assumed to be distributed in the antenna area of the lower half part of the mobile phone, so that the sensing plate distribution of the SAR sensor can be combined into a plurality of areas for identification.

In one embodiment, each sensing plate may be identified as an identification area. As shown in fig. 10, taking sensor board 1 as an example, if sensor board 1 recognizes that the user is approaching the scene, the antenna associated with sensor board 1 may perform corresponding backoff, and if sensor board 1 recognizes that the user is away from the scene, sensor board 1 controls the associated antenna not to adjust, i.e., operates in a full power state. Similarly, the

induction plates

2 and 3 \ 8230are the same as the induction plate N in the same control scheme. As shown in fig. 11, each of the sensing boards respectively and independently identifies a user approaching/departing scene, so that the functions of the sensors can be utilized to the maximum extent, and the communication performance can be retained to the maximum extent, that is, the number of antennas operating at full power in any scene is the largest compared with other combination methods, but the method occupies a large amount of states in the backoff table. Taking the current high-pass or MTK platform as an example, each version limits 20 states, and 10 induction plates respectively control the respective antennas to perform back-off 2 ¹⁰ Combinations of induction results, i.e. software needs at least 2 ¹⁰ The number of states of the state far beyond the limitation of the number of states of the rollback table can be limited, but if the number of the sensing plates of the whole machine is small, the identification mode can be used on the current platform.

In another embodiment, the induction plate of the mobile phone is divided into an upper identification area and a lower identification area. As shown in fig. 12, if the sensing result of any 1 or more than one of the sensing boards 1 to 5 in the upper recognition area is that the user approaches the scene, the antennas corresponding to the entire upper recognition area are all retracted; and if the sensing results of all the sensing plates are that the user is far away from the scene, keeping the corresponding antenna to work under the full-power state. Similarly, the 5 induction boards at the lower half part of the mobile phone identify the area under the control of the same mode. The greatest benefit of this way is to save the number of states required by the software platform, the state requirements are as shown in fig. 13, when the number of states is not enough, SAR reduction can be performed in this way, the recognition accuracy of the recognition area can be improved, and at the same time, it can be ensured that the antenna works under the full power condition when the user holds the bottom of the mobile phone with one hand or holds the top of the mobile phone with one hand.

In addition, when the sensing plates are divided into regions, the regions may be combined as needed. For example, the mobile phone is provided with 10 induction boards, and is divided into 6 identification areas as shown in fig. 14. The method comprises the following steps that a target identification area is determined by an induction plate in each identification area as long as one induction result of an induction plate in each identification area is a user approaching scene, and the transmitting power of an antenna in the target identification area is adjusted; only if the sensing results corresponding to all the sensing boards in the identification area are the user far-away scenes, the whole identification area can be judged not to be the target identification area. This way of merging parts of the sensor boards can reduce the number of states in the rollback table compared to the way of using each sensor board as one recognition area, and can also take into account a variety of usage scenarios. For example, it can be ensured that the antenna operates under full power when a user holds the bottom of the mobile phone with one hand or holds the top of the mobile phone with one hand; for another example, in a game scene in which a user holds the mobile phone with different gestures while holding the mobile phone in a horizontal screen, as long as an identification area is not a target identification area, the antennas in the identification area can be ensured to operate in a full-power state.

It is noted that the above-mentioned figures are merely schematic illustrations of processes involved in methods according to exemplary embodiments of the present disclosure, and are not intended to be limiting. It will be readily appreciated that the processes illustrated in the above figures are not intended to indicate or limit the temporal order of the processes. In addition, it is also readily understood that these processes may be performed synchronously or asynchronously, e.g., in multiple modules.

Further, referring to fig. 15, the present exemplary embodiment also provides an apparatus 1500 for reducing specific absorption rate of electromagnetic waves, which is applied to a terminal device including a plurality of sensing boards, and the apparatus includes a region division module 1510, a target determination module 1520, and a power adjustment module 1530. Wherein:

the zone division module 1510 may be configured to determine a plurality of identification zones on the terminal device based on the position of the sensing plate; each identification area includes at least one sensing pad.

The target determining module 1520 may be configured to obtain sensing data corresponding to each identification region, and determine the identification region corresponding to the sensing data as the target identification region when the sensing data meets a first preset condition.

The power adjustment module 1530 may be configured to adjust the transmission power of the antenna included in the target identification area according to the sensing data corresponding to the target identification area, so as to reduce the total transmission power of the target identification area, and further reduce the specific absorption rate of the electromagnetic wave.

In an exemplary embodiment, the target determining module 1520 may be configured to obtain, for each of the identified regions, a sensing result of each of the sensing boards in the identified region; and determining the induction results corresponding to all induction boards included in the identification area as induction data corresponding to the identification area.

In an exemplary embodiment, the power adjustment module 1530 may be configured to determine an antenna to be adjusted in the target identification area according to the sensing data corresponding to the target identification area; and reducing the corresponding transmitting power of the antenna to be adjusted according to the preset backspacing parameter so as to reduce the total transmitting power of the target identification area.

In an exemplary embodiment, the power adjustment module 1530 may be configured to determine all antennas associated with the sensing board as the antennas to be adjusted when the sensing result corresponding to the sensing board satisfies the second preset condition.

In an exemplary embodiment, the power adjustment module 1530 may be configured to determine a proximity sensing pad in the target identification area based on the position of the target antenna; and when the induction result corresponding to at least one adjacent induction plate meets a second preset condition, determining the target antenna as the antenna to be adjusted.

In an exemplary embodiment, the power adjustment module 1530 may be configured to restore the transmission power of all antennas included in the target identification area to a preset power when the sensing data corresponding to the target identification area does not satisfy the first preset condition.

In an exemplary embodiment, the region dividing module 1510 may be configured to, when a preset operation of a user is received, determine a dividing policy according to the preset operation; and determining a plurality of identification areas on the terminal equipment according to the positions of the induction boards based on the division strategy.

The specific details of each module in the above apparatus have been described in detail in the method section, and details that are not disclosed may refer to the contents of the method section, and thus are not described again.

As will be appreciated by one skilled in the art, aspects of the present disclosure may be embodied as a system, method or program product. Accordingly, various aspects of the present disclosure may be embodied in the form of: an entirely hardware embodiment, an entirely software embodiment (including firmware, microcode, etc.) or an embodiment combining hardware and software aspects that may all generally be referred to herein as a "circuit," module "or" system.

Exemplary embodiments of the present disclosure also provide a computer-readable storage medium having stored thereon a program product capable of implementing the above-described method of the present specification. In some possible embodiments, various aspects of the disclosure may also be implemented in the form of a program product including program code for causing a terminal device to perform the steps according to various exemplary embodiments of the disclosure described in the above-mentioned "exemplary methods" section of this specification, when the program product is run on the terminal device, for example, any one or more of the steps in fig. 3 may be performed.

It should be noted that the computer readable media shown in the present disclosure may be computer readable signal media or computer readable storage media or any combination of the two. A computer readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. More specific examples of the computer readable storage medium may include, but are not limited to: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

In the present disclosure, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device. In contrast, in the present disclosure, a computer readable signal medium may include a propagated data signal with computer readable program code embodied therein, for example, in baseband or as part of a carrier wave. Such a propagated data signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device. Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to: wireless, wire, fiber optic cable, RF, etc., or any suitable combination of the foregoing.

Furthermore, program code for carrying out operations of the present disclosure may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, C + + or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computing device, partly on the user's device, as a stand-alone software package, partly on the user's computing device and partly on a remote computing device, or entirely on the remote computing device or server. In situations involving remote computing devices, the remote computing devices may be connected to the user computing device through any kind of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or may be connected to external computing devices (e.g., through the internet using an internet service provider).

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is to be limited only by the terms of the appended claims.

Claims

1. A method for reducing specific absorption rate of electromagnetic waves, which is applied to a terminal device, and is characterized in that the terminal device comprises a plurality of induction plates, and the method comprises the following steps:

determining a plurality of identification areas on the terminal device based on the position of the sensing plate; each identification area comprises at least one induction plate;

acquiring induction data corresponding to each identification area, and determining the identification area corresponding to the induction data as a target identification area when the induction data meet a first preset condition;

and adjusting the transmitting power of the antenna contained in the target identification area according to the induction data corresponding to the target identification area so as to reduce the total transmitting power of the target identification area and further reduce the specific absorption rate of electromagnetic waves.

2. The method of claim 1, wherein said obtaining the sensing data corresponding to each of the identified regions comprises:

aiming at each identification area, acquiring the induction result of each induction plate in the identification area;

and determining the induction results corresponding to all the induction plates included in the identification area as induction data corresponding to the identification area.

3. The method of claim 1, wherein adjusting the transmission power of the antenna included in the target identification area according to the sensing data corresponding to the target identification area comprises:

determining an antenna to be adjusted in the target identification area according to the induction data corresponding to the target identification area;

and reducing the corresponding transmitting power of the antenna to be adjusted according to a preset backspacing parameter so as to reduce the total transmitting power of the target identification area.

4. The method of claim 3, wherein the induction board is associated with at least one of the antennas;

the determining of the antenna to be adjusted in the target identification area according to the sensing data corresponding to the target identification area includes:

when the induction result that the tablet corresponds satisfies the second preset condition, will with all that the tablet is relevant the antenna is determined for treating the adjustment antenna.

5. The method of claim 3, wherein when a target antenna not connected to the sensing board is included in the target identification area, the method further comprises:

determining a proximity sensing pad in the target identification area according to the position of the target antenna;

and when the induction result corresponding to at least one adjacent induction plate meets a second preset condition, determining the target antenna as the antenna to be adjusted.

6. The method of claim 1, wherein after the adjusting the transmission power of the antennas included in the target identification area according to the sensing data corresponding to the target identification area to reduce the total transmission power of the target identification area, the method further comprises:

and when the induction data corresponding to the target identification area does not meet the first preset condition, restoring the transmitting power of all the antennas contained in the target identification area to a preset power.

7. The method of claim 1, wherein determining a plurality of identification areas on the terminal device based on the position of the sensing plate comprises:

when receiving a preset operation of a user, determining a partitioning strategy according to the preset operation;

and determining a plurality of identification areas on the terminal equipment according to the positions of the induction boards on the basis of the division strategy.

8. An apparatus for reducing specific absorption rate of electromagnetic waves, applied to a terminal device, wherein the terminal device comprises a plurality of induction plates, the apparatus comprising:

the area dividing module is used for determining a plurality of identification areas on the terminal equipment based on the position of the induction plate; each identification area comprises at least one induction plate;

the target determining module is used for acquiring induction data corresponding to each identification area and determining the identification area corresponding to the induction data as a target identification area when the induction data meet a first preset condition;

and the power adjusting module is used for adjusting the transmitting power of the antenna contained in the target identification area according to the induction data corresponding to the target identification area so as to reduce the total transmitting power of the target identification area and further reduce the specific absorption rate of electromagnetic waves.

9. A computer-readable medium, on which a computer program is stored which, when being executed by a processor, carries out the method according to any one of claims 1 to 7.

10. An electronic device, comprising:

a processor; and

a memory for storing executable instructions of the processor;

wherein the processor is configured to perform the method of any of claims 1 to 7 via execution of the executable instructions.