WO2023024655A1 - Specific absorption rate adjustment method and apparatus, electronic device, and storage medium - Google Patents

Abstract

Embodiments of the present application disclose a specific absorption rate adjustment method and apparatus, an electronic device, and a storage medium. In the present application, the method comprises: obtaining specific absorption rate (SAR) influencing parameters (101); obtaining a target SAR influencing parameter according to the influence degree of each SAR influencing parameter on an SAR value; according to preset matching relationships between SAR influencing parameters and SAR adjustment methods, obtaining the SAR adjustment method matched with the target SAR influencing parameter (102); and adjusting a current SAR to a target SAR according to the matching SAR adjustment method (103).

Description

Specific absorption rate adjustment method, device, electronic equipment and storage medium

Cross References to Related Applications

This application is based on a Chinese patent application with application number 202110975437.7 and a filing date of August 24, 2021, and claims the priority of this Chinese patent application. The entire content of this Chinese patent application is hereby incorporated by reference into this application.

technical field

The embodiments of the present application relate to the field of equipment control, and in particular to a method, device, electronic equipment, and storage medium for adjusting a specific absorption rate.

Background technique

During the use of the terminal, due to its proximity to the human body, the radiated electromagnetic waves will act on other body parts such as the head, hands, and face. The higher the power, the closer the distance, and the higher the radiation dose. Specific Absorption (SAR), which is defined as the electromagnetic function absorbed or consumed by a unit mass of human tissue, is the time derivative of an energy increment absorbed by a mass increment of a given density or volume, if the electromagnetic radiation If the dose exceeds the standard, it will have an impact on the health and safety of users. Nowadays, there are many safety standards about SAR.

Therefore, it is often tested at the beginning of antenna design to check whether the SAR value of the terminal meets the safety standard. If the SAR value exceeds the standard, adjust the shape of the antenna to avoid it from the design, or design the type of antenna and use the PIFA antenna so that The energy of the antenna is radiated from the side facing away from the face, thereby reducing the SAR value.

In the process of using electronic equipment, the smaller the SAR value, the more conducive to reducing electromagnetic radiation and improving user safety. The above methods are configured with a certain safety standard as the measurement index in the equipment production process, just to reduce the The SAR value is not conducive to the user's SAR value adjustment in the actual use process, and cannot effectively protect the user's health and safety, and the way to reduce the SAR value is not flexible.

Contents of the invention

The embodiment of the present application provides a specific absorption rate adjustment method, including: obtaining each specific absorption rate SAR influence parameter; according to the influence degree of each SAR influence parameter on the SAR value, obtaining the target SAR influence parameter; according to the preset SAR Influencing the matching relationship between the parameters and the SAR adjustment method, obtaining the SAR adjustment method matching the target SAR influence parameter; adjusting the current SAR to the target SAR according to the matched SAR adjustment method .

The embodiment of the present application also provides a specific absorption rate adjustment device, including: a parameter acquisition module, configured to acquire the SAR influence parameters of the specific absorption rate; a mode acquisition module, configured to adjust the SAR value according to the SAR influence parameters degree of influence to obtain the target SAR influence parameter; according to the preset SAR influence parameter and specific absorption rate adjustment mode, obtain the specific absorption rate adjustment mode matched with the target SAR influence parameter; the adjustment module is set to be based on the matching The SAR adjustment method adjusts the current SAR to the target SAR.

The embodiment of the present application also provides an electronic device, including: at least one processor; and a memory connected in communication with the at least one processor; wherein, the memory stores information that can be executed by the at least one processor. Instructions, the instructions are executed by the at least one processor, so that the at least one processor can execute the above SAR adjustment method.

The embodiment of the present application also provides a computer-readable storage medium, which stores a computer program, and when the computer program is executed by a processor, the above method for adjusting the specific absorption rate is realized.

Description of drawings

One or more embodiments are exemplified by pictures in the accompanying drawings, and these exemplifications are not intended to limit the embodiments.

Fig. 1 is a flowchart of a method for adjusting specific absorption rate according to an embodiment of the present application;

Fig. 2 is a schematic diagram of functional units provided according to an embodiment of the present application;

FIG. 3 is a schematic diagram of a SAR reduction chip provided according to an embodiment of the present application;

Fig. 4 is a schematic diagram of a specific absorption rate adjustment device provided according to an embodiment of the present application;

Fig. 5 is a schematic structural diagram of an electronic device provided according to an embodiment of the present application.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the embodiments of the present application will be described in detail below with reference to the accompanying drawings. However, those of ordinary skill in the art can understand that in each embodiment of the application, many technical details are provided for readers to better understand the application. However, even without these technical details and various changes and modifications based on the following embodiments, the technical solutions claimed in this application can also be realized. The division of the following embodiments is for the convenience of description, and should not constitute any limitation to the specific implementation of the present application, and the embodiments can be combined and referred to each other on the premise of no contradiction.

This embodiment provides a specific absorption rate adjustment method, which can be applied to terminals, such as mobile phones, tablets and other electronic devices. The specific absorption rate adjustment method in this embodiment includes: obtaining various SAR influencing parameters; The degree of influence of the SAR influence parameter on the SAR value is obtained to obtain the target SAR influence parameter; according to the matching relationship between the preset SAR influence parameter and the SAR adjustment mode, the SAR adjustment mode matched with the target SAR influence parameter is obtained; The matching SAR adjustment method adjusts the current SAR to the target SAR.

Compared with configuring in the equipment production process to meet the standard requirements, this embodiment can obtain the SAR influence parameters of each specific absorption rate, and make different adjustments based on the influence degree of each SAR influence parameter, so that in the process of using electronic equipment Among them, the electronic device can also adjust the SAR value adaptively, which not only improves the flexibility of SAR value adjustment, but also helps the user to reduce the SAR value as much as possible during use, so as to effectively protect the user's health.

The implementation details of the method for adjusting the SAR of this embodiment are described in detail below, and the following content is only the implementation details provided for the convenience of understanding, and is not necessary for implementing the solution. The flow chart of this embodiment can be referred to as shown in FIG. 1 .

Step 101 , acquiring various specific absorption rate SAR influencing parameters. The specific absorption rate SAR influencing parameter can affect the SAR value of electronic equipment.

In some embodiments, the SAR impact parameters may include any of the following and combinations thereof: human-machine distance information, human-machine contact body part information, network coexistence information, wireless network performance information, specific absorption rate safety standard information, and antenna Power information, but not limited to.

In some embodiments, the charge signal can be radiated; the charge signal reflected by the radiated charge signal can be obtained; and the specific absorption rate SAR influence parameter can be obtained according to the reflected charge information.

Exemplarily, as shown in FIG. 2 , the electronic device has a SAR-reducing chip unit 201 , wherein the SAR-reducing chip unit 201 can radiate a charge signal, and obtain a charge signal reflected by the radiated charge signal. Referring to Figure 3, the electronic equipment, such as the antennas on the top or bottom or both sides of the terminal as the sensing surface, is connected to multiple channels of the SAR chip, and is set to sense and collect trace charge changes in the projection area. The antennas in the terminal include 2G/3G/4G/5G cellular antennas, WIFI, Bluetooth and GPS receiving antennas. Each antenna can be used as a transmitting surface for induced charges, and the other as a receiving surface for induced charges. The above-mentioned antenna units will form a certain vertical projection area with the mobile phone at the corresponding angle. Through the reflection and collection between the projection area in this direction and the induced charge of the object to be contacted, if there is an obstacle, it can be judged that there is a user in the corresponding direction. or other objects exist.

In some embodiments, the SAR chip unit 201 is connected to the distance calculation unit 203, and the distance calculation unit 203 is configured to calculate the distance information between man and machine. The distance information between man and machine includes the distance between the person and the terminal, the angle between the person and the terminal, and the like. The SAR value is related to the density of the transmission medium in the space. The smaller the transmission density, the slower the attenuation of high-frequency electromagnetic waves, and the greater the absorbed electromagnetic waves, the greater the SAR value absorbed by the human body. Similarly, the greater the distance from the transmitting source terminal to the human body, the greater the electromagnetic wave attenuation and the lower the SAR value.

When the distance calculation unit 203 is started, it can detect the distance between the person and the terminal. The distance calculation unit 203 continuously radiates a small amount of charge signal to the outside through the charge bar circuit on the SAR chip. When the radiated charge signal encounters the user's body, part of the It will be reflected back, and the reflected quantity value is affected by the body part or distance, and the sensing circuit collects the reflected charge quantity, converts it into a corresponding digital signal value through analog-to-digital conversion, and stores it in the corresponding register. The changing charge is at the level of femtofarads to picofarads. The specific charge can be controlled by the transmitting circuit. The induced charge and detectable distance are controlled by the sensitivity gain parameter, which is inversely proportional to the test distance and proportional to the sensing projected area. Antennas or other metal coupling units and charge sensing circuits placed at various angles and directions of the terminal form a star network connection, which can realize simultaneous and real-time detection of multi-channel multiplexing. Among them, the schematic table of SAR value mapping at different distances can be found in Table 1 shows.

Table I

distance scene	SAR value	distance
1	1.8	0MM
2	1.6	1MM
3	1.4	2mm
4	1.2	3mm
5	1	4mm
6	0.8	5mm
7	0.6	6mm
8	0.5	7mm
9	0.4	8mm
10	0.3	9mm
11	0.25	10mm

When the distance calculation unit 203 is started, it can detect the angle between the person and the terminal. The distance calculation unit 203 continuously radiates a small amount of charge signal to the outside through the charge rod circuit on the SAR chip. When the radiated charge signal encounters the opposite screen, part of the It will be reflected back, and the reflected quantity value is affected by the distance of the opposite screen and the projection area. The sensing circuit collects the reflected charge quantity, converts it into a corresponding digital signal value through analog-to-digital conversion, and stores it in the corresponding register. The changing charge is at the level of femtofarads to picofarads. The specific charge can be controlled by the transmitting circuit. The induced charge and detectable distance are controlled by the sensitivity gain parameter, which is inversely proportional to the test distance and proportional to the sensing projected area. The antennas or other metal coupling units placed in various angles and directions of the terminal and the charge sensing circuit form a star network connection, which can realize simultaneous and real-time detection of multi-channel multiplexing.

In some embodiments, the human body part identification unit 202 is connected to the SAR reduction chip unit 201 and the adaptive SAR reduction control unit 205 respectively, and the human body part identification unit 202 can obtain the information of human body parts contacted by the human machine, that is, the position and position of the terminal relative to the user. Location.

Among them, human body parts include human body parts that the terminal may contact, such as left head, right head, ear, mouth, chin, left hand, right hand, wrist, left chest of upper body pocket, waist corresponding to left and right trouser pockets, and back pocket of trousers Buttocks, feet, ankles and other parts.

When the terminal is in contact with the user's body during calls or surfing the Internet, due to the emission of electromagnetic waves, the radiated energy will not only cause the temperature of the human body to rise, the interaction between electromagnetic waves and human cells will also produce other physiological effects, that is, electromagnetic wave absorption hazards . Each body part of the user's body is a lossy medium. The electromagnetic wave signal generated by the terminal passes through the body parts and organs to form a current in the body, and part of the electromagnetic wave energy signal is absorbed. The electromagnetic power absorbed by the unit mass of human tissue, or energy increment The time derivative of a mass increment absorbed by a given density and volume is called the specific absorption rate SAR, in W/Kg, and the specific absorption rate SAR is expressed as follows:

Among them, the expression is expressed as the differential value of the energy micro-unit dW absorbed or dissipated by the mass micro-unit dm in the volume micro-unit dV of a given density ρ to the time t. In addition, SAR is also considered as an absorbed dose rate, It is related to the local electric field and the dimensionality increase, and the formula is as follows:

in,

is the differential of the initial temperature in the tissue with respect to time;

δ is the conductivity of human tissue or medium. The smaller the conductivity, the smaller the induced high-frequency current, and the smaller the absorbed electromagnetic wave, that is, the smaller the absorbed SAR value. E is the effective value of the electric field strength in the tissue, c is the specific heat capacity of the tissue. Table 2 shows the SAR limits of mobile phones for human body parts in different national standards.

Table II

the	Europe	U.S.	Japan	South Korea	Australia
specific part	2.0(10g)	1.6(10g)	2.0(10g)	1.6(10g)	2.0(10g)
hand, foot	4.0(10g)	4.0(10g)	4.0(10g)	4.0(10g)	4.0(10g)

In some embodiments, the network mode detection unit 206 is connected to the adaptive SAR reduction control unit 205 . The network mode detection unit 206 can obtain the terminal's current SAR reduction working frequency band, channel and network mode, such as network coexistence information, wireless network performance information, specific absorption rate safety standard information, and antenna power information.

Since the adjustment of SAR reduction parameters is strongly related to the information of operators, the regulations and standards of different operators are not uniform, and the test distances of different operators are not uniform. Therefore, if each mobile phone has a built-in set of SAR reduction parameters, the sensing distance is fixed, Failure to perform adaptive adjustment and control based on the specific absorption rate safety standard information of the operator network will lead to untargeted power fallback during the SAR reduction process. Therefore, this embodiment performs adaptive induction reduction based on the network mode. SAR adjustment mechanism, so that by detecting different cellular standard modes, wireless communication modes, etc., it can also detect the current operator type information, and the subsequent adaptive adjustment can be based on the above parameters, such as network coexistence information, wireless network performance information , SAR safety standard information, and antenna power information are used for mapping adjustment control.

The network mode detection unit 206 first determines whether the terminal is in the SAR working mode, and secondly identifies whether the current network mode is LTE, WCDMA, NR standard mode, WIFI2.4G/5G connection mode or hotspot mode, which can be captured and reported by the radio frequency module on the terminal information to identify.

At the same time, it is also necessary to identify the current operator type, whether it is FCC, CE, or Japan, South Korea, China, CEM, etc. Here, it is identified by software version or card information reporting information. Different operator types correspond to different specific absorption rates. Safety Standards Information.

The parameters of the network mode detection are the network information, server information, and cell information reported by each operator. The information is received through the antenna of the mobile phone, frequency-divided by the RF front-end, filtered, amplified, and then down-frequency by the RF main chip, demodulated, and then transmitted to the Baseband chip processing, the baseband chip analyzes the wireless information reported by the modem side, captures and analyzes specific LOGMASK information keywords, and matches the current network operator and which network standard. At the same time, by capturing the key parameters of each network standard and the reported information of the network and wireless modules, it can also detect whether it is currently a single network standard or a concurrent network working mode. Network coexistence information such as LTE-NR, LTE-WIFI, NR-NR, NR-WIFI, etc., and through this module, wireless network performance information, antenna power information, etc. can also be measured.

Step 102, according to the degree of influence of each SAR influencing parameter on the SAR value, obtain the target SAR influencing parameter, and according to the matching relationship between the preset SAR influencing parameter and the SAR adjustment mode, obtain the SAR influencing parameter matching the target SAR influencing parameter SAR adjustment method.

In some embodiments, the electronic device can obtain one of the SAR influencing parameters such as human-machine distance information, human-machine contact body part information, network coexistence information, wireless network performance information, specific absorption rate safety standard information, and antenna power information. One or more SAR influencing parameters are target SAR influencing parameters, and the SAR adjusting mode is adaptively pushed according to the matching relationship between the target SAR influencing parameter and the SAR adjusting mode.

In some embodiments, according to the current weight of each SAR influence parameter, the weight can be used as the influence degree, and then the target SAR influence parameter can be determined according to different weights, and corresponding adjustments can be made by matching different SAR adjustment methods.

In some other embodiments, when the SAR influencing parameter meets the preset condition, the SAR influencing parameter satisfying the preset condition is used as the target specific absorption rate adjustment method, wherein, the influence degree of the SAR influencing parameter satisfying the preset condition on the SAR value It is higher than the influence degree of the SAR influence parameter on the SAR value that does not meet the preset condition.

It is worth mentioning that, according to the degree of influence of each SAR influencing parameter on the SAR value, the method of obtaining the target SAR influencing parameter is just an example, and it is not limited to this in the actual application process. In this embodiment, the comprehensive consideration of each SAR influencing parameter , so as to determine the adjustment method, and perform SAR reduction processing, which is suitable for different scenarios, so that the SAR reduction processing is more targeted and can effectively protect the health and safety of users.

The adjustment method in this embodiment includes any of the following items and combinations thereof: network mode matching adjustment method, distance dynamic power adjustment method, wireless performance closed-loop SAR reduction adjustment method, concurrent mode selection SAR reduction adjustment method, human body part induction SAR reduction unit , and adjustment methods such as a dynamic SAR reduction path adjustment unit, but not limited thereto. The adjustment units corresponding to each adjustment mode can be referred to as shown in FIG. 2 .

The self-adaptive SAR reduction control unit 205 captures and analyzes the algorithm based on the network and the parameters affected by the SAR reduction, combining the human-machine distance information, the operator's specific absorption rate safety standard information, antenna power information, wireless network performance information, network coexistence information, To reduce the SAR value, different SAR influencing parameters can be combined with different SAR influencing parameters to make different adjustments.

The parameter storage unit 204 shown in FIG. 2 is connected to the adaptive SAR reduction control unit 205, and the parameter storage unit 204 can be set as the storage of various parameters that need to be called. The parameters that need to be called include the mapping parameter values of the above adjustment methods, such as the network parameter SAR model, the SAR value model at different distances, the wireless signal parameter value, the concurrent model set value, the human body part SAR value parameter model value, and the different paths. SAR value model. Network parameter distance model values, such as SAR index parameter values for each network standard, each frequency band, each distance and power. Wireless performance parameter values, such as uplink and downlink throughput and bit error rate values of terminals in NR mode, and default radio frequency performance values under different scheduling parameters, such as EVM, ACLR, RSRP and estimated sensitivity values, modulation coefficients, and data streams Count and so on. The parameter storage unit 204 also contains concurrency model values, such as different radio parameter values and SAR values in NR and LTE set subset modes, or index parameter values in dynamic power sharing mode.

Exemplarily, taking the SAR influence parameters including: human-machine distance information, human-machine contact body part information, network coexistence information, wireless network performance information, specific absorption rate safety standard information, and antenna power information as an example, adaptive SAR reduction The control unit 205 is responsible for selecting the SAR adjustment method. The SAR adjustment method corresponds to the six SAR adjustment units shown in Figure 2, each of which has its own matching parameter characteristics, such as the network mode matching adjustment unit 207, the distance dynamic power adjustment unit 208, and the wireless performance closed-loop SAR reduction adjustment unit 209 , the concurrent mode selection SAR reduction adjustment unit 210 , the body part sensing SAR reduction adjustment unit 211 , and the dynamic SAR reduction path adjustment unit 212 .

In this embodiment, the network parameters detected by the current network mode detection unit 206, the human body part information detected by the human body part recognition unit 202, and the human-machine distance information calculated by the distance calculation unit 203 are used to compare the parameters before and after the change. change value.

The SAR influence degree can be expressed as the influence of the current SAR influence parameter on the SAR value, and the greater the influence on the SAR value, the higher the SAR influence degree.

In some embodiments, if the specific absorption rate safety standard information changes, the target SAR impact parameter includes at least the specific absorption rate safety standard information; if the man-machine distance is within a preset range, the target SAR impact parameter The parameters include at least human-machine distance information; if the human-machine contacted body parts change, the target SAR impact parameters include at least human-machine contacted human body part information; if at least two networks are connected at the same time, the target SAR The influencing parameters include at least network coexistence information; if the wireless network performance is lower than the first preset threshold, the target SAR influencing parameters include at least: wireless network performance information; if the currently used antenna SAR value is higher than the second preset threshold, Then the target SAR influencing parameter at least includes: antenna power information. In this embodiment, when the SAR influencing parameter satisfies the preset condition, then the degree of influence representing the SAR influencing parameter is relatively large, and the SAR influencing parameter can be used as the target SAR influencing parameter. In other embodiments, according to the size of the influencing degree, priority One or several SAR influencing parameters with relatively large influence degree are selected as the target SAR influencing parameters.

Exemplarily, if the SAR safety standard information of the current network operator is highly influential, such as the special distance and threshold-related standard information for testing SAR, the network mode corresponding to the SAR safety standard information is preferentially invoked Matching adjustment method; if it is determined that the current human-machine distance is far or short according to the human-machine distance information, that is, the human-machine distance information is used as the target SAR influence parameter, then the distance dynamic power adjustment will be called first; if the current call quality is determined according to the wireless network performance information Influenced, or currently in a weak signal situation, that is, the wireless network performance information is used as the target SAR influencing parameter, and the wireless performance closed-loop SAR reduction adjustment method will be called first. If it is detected that the current coexistence mode of 2/3/4/5G and WIFI The SAR exceeds the standard, that is, the network coexistence information is the target SAR influencing parameter, and the wireless performance closed-loop SAR reduction adjustment method is preferentially invoked. If the current contact part of the call is detected according to the information of the human-machine contacted body part, that is, the human-machine contacted body part information, the human body part sensing SAR reduction adjustment method in the human body part sensing SAR reduction adjustment unit 211 is preferentially invoked.

It is worth mentioning that the above-mentioned adjustment methods can be adjusted one by one, or they can be combined in pairs, or more combinations can be used together until the network performance and SAR reduction requirements are met, especially when the influence of related SAR parameters is relatively close. In the case of little difference, for example: multiple SAR influencing parameters all meet the preset conditions, multiple adjustment methods can be combined in pairs.

In some embodiments, if the target SAR influencing parameters include a plurality of SAR influencing parameters, each SAR adjustment mode matching each SAR influencing parameter in the target SAR influencing parameters can be respectively acquired according to each SAR influencing parameter in the target SAR influencing parameters The degree of influence of the SAR influence parameter is used to obtain the adjustment weights corresponding to the various SAR adjustment modes. In this embodiment, multiple SAR adjustment methods are coordinated and adjusted, and the adjustment weight can be obtained by referring to the degree of influence. For example, the greater the degree of influence, the more power fallback value adjusted by using this SAR adjustment method.

Step 103 may be executed after the matching SAR adjustment mode is obtained.

Step 103, adjusting the current SAR to the target SAR according to the matching SAR adjustment method.

Among them, the target SAR can be the SAR preset in the device that meets the requirements of a certain safety standard, or it can be the target SAR determined through the SAR safety standard information of the current network, or it can be lower than a certain SAR. A specific absorption rate required by safety standards.

In some embodiments, if the target specific absorption rate SAR affects the parameters, the matching SAR adjustment method is a network mode matching adjustment mode. In the network mode matching adjustment mode, the SAR safety standard of the current network can be used. The information acquires a power backoff value corresponding to the SAR safety standard information; and adjusts the SAR according to the power backoff value. Its corresponding functional unit is the network pattern matching adjustment unit 207 in FIG. 2 . The network mode matching adjustment unit 207 is connected to the self-adaptive SAR reduction control unit 205, and is set to perform SAR reduction adjustment based on the safety standard information of the specific absorption rate of the current network operator, and detects the safety standard information of the current network, such as FCC, CE, etc. , to determine different power backoff values.

This embodiment considers that if the SAR is adjusted, it can only be aimed at the safety standard information of a certain operator. If it meets the FCC regulation adjustment, it cannot meet the CE regulation adjustment, and if it meets the Chinese safety standard information, it cannot meet the FCC safety standard. , the adjustment mode is single, if the power is reduced according to the most stringent requirements, so as to meet the requirements of each standard, the power will be reduced too much and the wireless performance will be reduced. Therefore, this embodiment can meet the requirements of the safety standards. In this case, try to avoid the degradation of wireless performance caused by too much power reduction.

In some embodiments, if the target SAR influence parameters include: man-machine distance information, then the matching SAR adjustment method is the distance dynamic power adjustment method. In the distance dynamic power adjustment method, it can be obtained according to the man-machine distance information. A power backoff value; wherein, the human-machine distance is positively correlated with the power backoff value; the current SAR is adjusted to the target SAR according to the power backoff value. The distance dynamic power adjustment mode corresponds to the distance dynamic power adjustment unit 208 .

The distance dynamic power adjustment unit 208 is connected to the adaptive SAR reduction control unit 205 and is set to adjust the SAR reduction parameters induced by different distances.

Compared with SAR reduction adjustment, setting a fixed distance parameter triggers SAR reduction processing, such as setting 10mm to trigger SAR reduction, 5mm to trigger SAR reduction, 0mm to trigger SAR reduction, etc., resulting in that when the set distance is not met, it cannot Trigger the SAR reduction. For example, if the SAR reduction sensor sesor sets the SAR reduction distance to a fixed value such as 5mm, the distance requirement will not be met. If the distance between the man and the machine is 10mm, the SAR reduction will not be triggered, resulting in the inability to Need to dynamically adjust the power, this embodiment takes into account the different SAR values under different man-machine distances in the actual application process, that is, the farther the distance, the lower the SAR value, the closer the distance, the higher the SAR value, this embodiment can The power back-off value is dynamically determined according to the SAR man-machine distance information, so that the specific absorption rate can be flexibly adjusted.

For example: in the LTE B1 frequency band, the test is that the 10mm power backoff value is 3dB, so that the SAR value threshold requirement of 1.6w/kg is met, and if the distance between human and machine contact is 5mm, the original 3dB backoff cannot meet the requirements. Another example , there is a certain margin for the SAR fallback. For example, the SAR threshold is 1.6w/kg, and when the test meets the requirements and the fallback is 3dB, the SAR value is 1.0w/kg, that is, there is a fallback of 0.6w/kg. Back off threshold margin. In this case, the SAR value of 1.4w/kg is enough, that is, the power backoff is 2dB. Through the dynamic adjustment method based on the distance information of the human body in this embodiment, the power backoff can be dynamically adjusted.

It is worth mentioning that if the human body distance information in this embodiment is adjusted in conjunction with the safety standard information under the current network, the different requirements for the human-machine distance under different safety standards can be considered, making the adjustment more accurate and more accurate. It can effectively reduce the SAR value and ensure the signal quality.

In some embodiments, if the target SAR impact parameters include: information on human body parts that are in contact with a human machine, then the matching adjustment method includes: a distance dynamic power adjustment method. In the distance dynamic power adjustment method, it is possible to obtain A power backoff value matched with the part information; the SAR is adjusted according to the matched power backoff value. The range dynamic power adjustment mode corresponds to the range dynamic power adjustment unit 208 in FIG. 2 , and the range dynamic power adjustment unit 208 is connected to the adaptive SAR reduction control unit 205 .

Specifically, human body parts refer to human body parts that the terminal may touch, such as left head, right head, ear, mouth, chin, left hand, right hand, wrist, upper body pocket left chest, left and right trouser pockets corresponding waist, trousers back pocket corresponding Buttocks, feet, ankles and other parts. The SAR absorption value of different parts is different, so the harm to the human body is also different.

Exemplarily, the distance dynamic power adjustment unit 208 may first detect the body parts of the corresponding user close to the terminal during the current call or use, search for different calculation models for different parts, and perform different power fallbacks to reduce SAR. The human body part detection method here is: scan the 3D model of the face or the texture of the face head through the 3D structured light module or the proactive camera on the terminal, and judge whether it is the left head, the right head, the ear, the mouth, the chin or through the Grip detection or pressure detection on the upper edge of the terminal, whether the detection is left or right handed. Due to the different dielectric constants of different substances, the charge feedback value under direct contact is also different. By detecting the difference between the different fabrics of the mobile phone close to the jacket and trousers, it can be detected and judged whether the left chest of the upper body pocket is close to the mobile phone or the pocket of the trousers. Keep your hips or waist close to the phone.

Compared with when the terminal detects that the user is approaching, it starts to reduce the SAR power and backs off the power, which may cause false triggers due to the approach of other objects other than the user. The SAR reduction processing is performed based on the information of human body parts, which avoids false triggering caused by the approach of other non-user objects. Compared with the proximity of the user, the power fallback value tested using the same model does not distinguish between human body parts, resulting in insufficient power fallback values. For example, the fallback value for part A is not suitable for part B, or There are too many power backoff values. For example, the power backoff value is based on part A, but the actual SAR value of part B is much smaller, and the backoff is based on part A, resulting in excessive power backoff, which in turn leads to emission performance degradation, this embodiment can match the power backoff value for different human body parts, on the one hand, ensure that the power backoff value is sufficient to meet the SAR value requirements of human body parts, on the other hand, minimize the decline in transmission performance, so that Try to keep the normal communication of the electronic equipment.

In some embodiments, if the SAR-influencing parameters include: wireless network performance information, then the matching SAR adjustment method is a wireless performance closed-loop SAR reduction adjustment method. In the wireless performance closed-loop SAR reduction adjustment method, if the wireless network If the performance is lower than the preset value, the power that can be increased by the wireless network is obtained according to the current SAR and the target SAR, and if the performance of the wireless network after increasing the power is lower than the preset value, the current SAR of the wireless network is The used antenna is switched to the target antenna, and if the wireless network performance after switching to the target antenna is lower than a preset value, a prompt message for instructing the user to keep the distance between man and machine is issued. The wireless network performance information in this embodiment may include: uplink and downlink call quality, upload and download throughput rates, own space and wireless performance of left and right hands. The current network operator's standard information can be obtained to obtain the target SAR.

The wireless performance closed-loop SAR reduction adjustment mode corresponds to the wireless performance closed-loop SAR reduction adjustment unit 209 , and the wireless performance closed-loop SAR reduction adjustment unit 209 is connected to the adaptive SAR reduction control unit 205 . The wireless performance closed-loop SAR reduction adjustment unit 209 is configured to perform SAR reduction adjustment based on wireless performance detection.

Exemplarily, by setting the detection of wireless network performance on the electronic device, such as the freeze detection mechanism and the throughput threshold detection mechanism, and setting the wireless performance power determination mechanism at the same time, that is, during the work process, if the uplink card is detected When the frame rate or upload rate is reduced, determine whether the current power is limited, that is, whether the limitation is caused by SAR reduction. If so, two strategies are used to improve this problem.

Strategy 1: Increase the SAR reduction power limit to the limit threshold of the operator's SAR value or certification requirements.

Strategy 2: When the increased power reaches the limit of the SAR value, start the upper and lower antenna switching mechanism, so that the power can be increased while meeting the SAR value requirements.

Strategy 3: If both strategy 1 and strategy 2 fail, start the distance prompt mechanism to instruct the user to hold the posture and stay away from the human body until the distance requirement of the SAR value is met.

Compared with the direct power backoff directly based on the trigger distance, the problem that the uplink calling party is stuck or the throughput is reduced due to too much power backoff, this embodiment considers the wireless performance when adjusting the SAR value, and guarantees the SAR When the value meets the requirements, it also avoids the problems of uplink caller freeze or throughput drop caused by too much power back-off, so that the power back-off not only meets the SAR reduction requirements, but also meets the use requirements of wireless performance.

In some embodiments, if the target SAR affects the parameters, including: network coexistence information, then the matching adjustment method is to select the SAR reduction adjustment method in the concurrent mode. In the concurrent mode selection SAR reduction adjustment method, the total power back-off value is obtained; according to The network performance requirements of each network in the network coexistence information assigns a power backoff value to each network; wherein, the sum of the power backoff values assigned to each network is equal to the total power backoff value; according to the power backoff value assigned to each network, the The current SAR is adjusted to the target SAR.

The concurrent mode selection SAR reduction adjustment mode corresponds to the concurrent mode selection SAR reduction adjustment unit 210, the concurrent mode selection SAR reduction adjustment unit 210 is connected to the adaptive SAR reduction control unit 205, and is set to adjust the SAR reduction based on the concurrent mode priority matching.

Network coexistence means that the network used by electronic equipment is in a concurrent working state, such as LTE-NR, LTE and WIFI connection, WCDMA and WIFI connection, NR and WIFI connection, LTE and WIFI hotspot, WCDMA and WIFI hotspot, NR in electronic equipment Concurrent working status combined with WIFI hotspot, WCDMA and NR.

Table three

network scene	S1	S2	S3	S4	S5	S6
format	LTE	WCDMA	NR-TX1	NR-TX2	WiFi	WIFI HOTSPOT
collection 1	1	0	1	0	0	0
collection 2	1	0	1	1	0	0
collection 3	1	0	1	1	1	0
collection 4	1	0	1	1	0	1
Collection 5	0	0	1	0	0	0
collection 6	0	0	1	1	0	0
collection 7	0	0	1	1	1	0
collection 8	0	0	1	1	0	1
collection 9	1	the	0	0	1	0
Collection 10	1	0	0	0	0	1

Exemplarily, as shown in Table 3, the above-mentioned two concurrent systems, that is, the networks are called A and B,

In view of the uncertainty of the above-mentioned power reduction, the workflow of the concurrent mode intelligent selection SAR reduction adjustment is as follows:

Divide the power backoff of A and B into several subsets, as shown in Table 4 below:

Table four

gather	A power fallback	B power fallback
collection 1	4	0
collection 2	3	1
collection 3	2	2
collection 4	1	3
Collection 5	0	4

First check whether the current SAR exceeds the standard, and in the concurrent working mode of network coexistence, first check the network characteristics of A and B in the current concurrent working mode, such as signal strength, signal-to-noise ratio, power, etc., that is, the characteristics of the current business system, Such as SA, NSA, hotspot mode, etc., by judging the strength of the network characteristics of A and B, the priority of the service system, and the reduction ratio of call or data performance after reducing the power, it is judged to select the combination with the least impact. If it is detected that the current uplink signal of A is already very weak, the SAR value under concurrent cannot be reduced by reducing the power of A. At this time, the mode of set 5 is selected to reduce the power. Similarly, if it is detected that the current uplink signal of B is already very weak, the SAR value under concurrent conditions cannot be reduced by reducing the power of B. At this time, the mode of set 1 is selected to reduce the power. If both A and B can be reduced, Then, by detecting the network performance of the currently merged A and B, any one of the sets 2 to 4 is selected in real time.

In addition, considering that when A and B are concurrent, the distribution positions of the antennas corresponding to A and B are different on the terminal, and the parts close to the human body are also different. The corresponding antenna is on the top of the mobile phone, and the top earpiece of the mobile phone is close during the current call, that is, A is close and B is far away, then reducing the power of B is invalid, and you need to select a set that reduces the power of A more, such as set 1.

Compared with randomly selecting the network for power backoff, such as reducing the power of A alone, or reducing the power of B alone, or reducing the power of A and B at the same time, so as to meet the requirements of the combined SAR value, for example, in NR and In the scenario where WIFI works concurrently, when the SAR exceeds the standard, the NR power can be rolled back from 24dBm to 20dBm alone, and the SAR can be rolled back to the target requirement, or the NR power can be kept at 24dBm, and the WIFI power can be rolled back from 16dBm to 12dBm, and the SAR can also be rolled back. Return to the target requirements, or NR is reduced to 22dBm, WIFI is reduced to 14dBm, SAR can also fall back to the target requirements, and the randomness is strong. This embodiment allocates power fallback values based on different network performances, and can perform directivity according to business requirements. Power adjustment, so as to ensure that the SAR value does not exceed the standard, so that the power fallback value meets the current network data transmission requirements, further improving customer experience.

In some embodiments, if the target specific absorption rate SAR affects parameters, including: antenna power information, then the matched SAR adjustment method is a dynamic SAR reduction path adjustment method. In the dynamic SAR reduction path adjustment method, according to the antenna power information Determine the antenna that meets the target SAR; switch the currently used antenna to the antenna that meets the target SAR. The distance dynamic power adjustment mode corresponds to the dynamic SAR reduction path adjustment unit 212 .

The dynamic SAR path adjustment unit 212 is connected to the adaptive SAR reduction control unit 205 and is configured to adjust the SAR reduction based on the antenna path.

Exemplarily, in a 5G terminal, NR generally has four paths of 4*4mimo. By adding 3P3T, 4P4T, DPDT switches, etc. to each path, the paths are cascaded together, that is, the path is switched by SRS to achieve SAR reduction adjustment. Due to the difference of each radio frequency conduction path and antenna, different radio frequency and antenna paths The power and antenna efficiency on the radio are also different, and the corresponding SAR values are also different. By switching the radio frequency path and antenna, the path with high SAR value can be switched to the path with low SAR value. The power collection of different antennas here can directly collect the SRS feedback signal, judge the SRS power level on the corresponding antenna under the current network and standard, and compare it with the SAR value model, so as to choose to switch to the path with a small SAR value.

Moreover, based on the principle that the SAR values of different antennas are different, when the user's body is close to the terminal, if the SAR value of the antenna in area C is high, and the TX transmission can be switched to a position with a low SAR value through multi-channel switching, through Detect the body parts currently in contact with the user and the antenna parts close to the mobile phone, and switch them to non-SAR sensitive areas and parts.

In some embodiments, if the target SAR influence parameter includes multiple influence parameters, the current SAR can be adjusted to the target SAR according to the adjustment weight corresponding to each SAR adjustment mode and each SAR adjustment mode. .

In some embodiments, after the current SAR is adjusted to the target SAR according to the matching SAR adjustment method, it may also be detected whether the performance of the wireless network is lower than the first preset threshold, and if the performance of the wireless network is lower than the first preset threshold A preset threshold value is used to obtain a specific absorption rate adjustment method that matches the SAR influence parameter that characterizes the network characteristics; adjust according to the specific absorption rate adjustment method that matches the SAR influence parameter that characterizes the network characteristics, until the performance of the wireless network reaches the above-mentioned The first preset threshold.

Exemplarily, in this embodiment, the SAR impact parameters characterizing network characteristics may include: wireless network performance information, antenna power information, network coexistence information, and the like. If the current wireless network performance is lower than the first preset threshold due to the adjustment of the SAR value, the wireless network performance can be guaranteed by switching antennas, adjusting the power allocation of each network in the coexistence network, or prompting the user to keep the distance between man and machine. , so as to ensure that the SAR value meets the user's health needs, and the communication quality can also be guaranteed.

This embodiment adjusts the SAR reduction based on the adaptive adjustment control mechanism, which also makes the power control and SAR applicable to different scenarios, making the SAR adjustment method more flexible and effective, suitable for different application scenarios of users, and effectively protecting the user's personal safety. Safety, while improving the emission performance limit, it can also meet the SAR threshold requirements of different scenarios, different modes and combinations under different distances, that is, it can improve the energy efficiency of SAR reduction adjustment, and then improve the electromagnetic radiation safety of communication terminals. Guarantee current communication quality.

The step division of the above various methods is only for the sake of clarity of description. During implementation, it can be combined into one step or some steps can be split and decomposed into multiple steps. As long as they include the same logical relationship, they are all within the scope of protection of this patent. ; Adding insignificant modifications or introducing insignificant designs to the algorithm or process, but not changing the core design of the algorithm and process are all within the scope of protection of this patent.

The embodiment of the present application relates to a specific absorption rate adjustment device, as shown in FIG. 4 , including: a parameter acquisition module 401, configured to acquire various specific absorption rate SAR influencing parameters; a mode acquisition module 402, configured to The influence degree of each SAR influence parameter on the SAR value is obtained to obtain the target SAR influence parameter; according to the preset SAR influence parameter and the SAR adjustment method, the SAR adjustment method matching the target SAR influence parameter is obtained; the adjustment module 403 , is set to adjust the current SAR to the target SAR according to the matching SAR adjustment method.

In some embodiments, the SAR impact parameters in the parameter acquisition module 401 include any of the following and combinations thereof: human-machine distance information, human-machine contact body part information, network coexistence information, wireless network performance information, specific absorption rate safety standard information, and antenna power information.

In some embodiments, if the target SAR impact parameters in the mode acquisition module 402 include: man-machine distance information, then the adjustment module 403 is set to acquire the power back-off value according to the man-machine distance information; wherein, the man-machine distance information The aircraft distance is positively correlated with the power back-off value; the current SAR is adjusted to the target SAR according to the power back-off value.

In some embodiments, if the target SAR impact parameters in the mode acquisition module 402 include: information on human body parts in contact with a human machine, then the adjustment module 403 is configured to obtain a power backoff value that matches the information on human body parts; according to the The matching power backoff value adjusts the SAR.

In some embodiments, if the target SAR impact parameter in the acquisition module 402 includes: network coexistence information, the adjustment module 403 is set to obtain the total power backoff value; according to the network performance of each network in the network coexistence information is Each network is assigned a power backoff value; wherein, the sum of the power backoff values assigned to each network is equal to the total power backoff value; according to the power backoff value assigned to each network, the current SAR is adjusted to Target SAR.

In some embodiments, if the target SAR impact parameters in the acquisition module 402 include: wireless network performance information, the adjustment module 403 is set to, if the wireless network performance is lower than a preset value, according to the current specific absorption rate and the target Acquiring the power that can be increased by the wireless network through SAR, if the performance of the wireless network after increasing the power is lower than the preset value, switching the antenna currently used by the wireless network to the target antenna, if switching to the target antenna If the performance of the wireless network is lower than the preset value, a prompt message for instructing the user to keep the distance between man and machine is issued.

In some embodiments, if the way to acquire the target SAR impact parameters in the module 402 includes: specific absorption rate safety standard information, then the adjustment module 403 is configured to obtain the specific absorption rate according to the current network safety standard information and the specific absorption rate A power backoff value corresponding to the safety standard information; adjusting the current SAR to a target SAR according to the power backoff value.

In some embodiments, if the way to obtain the target SAR impact parameters in module 402 includes: antenna power information, then the adjustment module 403 is configured to determine the antenna that meets the target SAR according to the antenna power information; switch the currently used antenna to An antenna that satisfies the target SAR.

In some embodiments, the parameter acquisition module 401 is configured to radiate the charge signal; acquire the charge signal reflected by the radiated charge signal; and acquire the SAR influencing parameter according to the reflected charge information.

In some embodiments, if the target SAR influencing parameters in the mode acquiring module 402 include multiple SAR influencing parameters, the mode acquiring module 402 is configured to respectively acquire the specific absorption parameters matching the SAR influencing parameters in the target SAR influencing parameters According to the degree of influence of each SAR influencing parameter in the target SAR influencing parameter, obtain the adjustment weight corresponding to each SAR adjustment mode; the adjustment module 403 is set to correspond to each SAR adjustment mode according to the SAR adjustment mode. The adjustment weights and the SAR adjustment methods adjust the current SAR to the target SAR.

In some embodiments, the adjustment module 403 is configured to obtain a specific absorption rate adjustment method that matches the SAR impact parameter that characterizes the network characteristics if the performance of the wireless network is lower than the first preset threshold; SAR is adjusted in a manner of adjusting SAR affecting parameter matching until the performance of the wireless network reaches the first preset threshold.

In some embodiments, the mode acquisition module 402 is set to if the SAR safety standard information changes, the target SAR impact parameter includes at least the SAR safety standard information; if the human-machine distance is within a preset range , then the target SAR influence parameter includes at least the human-machine distance information; if the human-machine contact body part changes, the target SAR influence parameter at least includes the human-machine contact human body part information; if at least two network, the target SAR impact parameter includes at least network coexistence information; if the wireless network performance is lower than the first preset threshold, the target SAR impact parameter includes at least: wireless network performance information; if the currently used antenna SAR value is high At the second preset threshold, the target SAR impact parameter at least includes: antenna power information.

It is not difficult to find that this embodiment is a system embodiment corresponding to the above-mentioned method embodiment, and this embodiment can be implemented in cooperation with the above-mentioned method embodiment. The relevant technical details mentioned in the foregoing method embodiments are still valid in this embodiment, and will not be repeated here in order to reduce repetition. Correspondingly, the relevant technical details mentioned in this embodiment can also be applied in the first embodiment.

It is worth mentioning that all the modules involved in this embodiment are logical modules. In practical applications, a logical unit can be a physical unit, or a part of a physical unit, or multiple physical units. Combination of units. In addition, in order to highlight the innovative part of the present application, units that are not closely related to solving the technical problem proposed in the present application are not introduced in this embodiment, but this does not mean that there are no other units in this embodiment.

An embodiment of the present application also provides an electronic device, as shown in FIG. 5 , including at least one processor 501; and a memory 502 communicatively connected to the at least one processor 501; Instructions executed by the at least one processor 501 , the instructions are executed by the at least one processor, so that the at least one processor can execute the above-mentioned specific absorption rate adjustment method.

Wherein, the memory and the processor are connected by a bus, and the bus may include any number of interconnected buses and bridges, and the bus connects one or more processors and various circuits of the memory together. The bus may also connect together various other circuits such as peripherals, voltage regulators, and power management circuits, all of which are well known in the art and therefore will not be further described herein. The bus interface provides an interface between the bus and the transceivers. A transceiver may be one element, or multiple elements, such as multiple receivers and transmitters, providing a unit arranged to communicate with various other devices over a transmission medium. The data processed by the processor is transmitted on the wireless medium through the antenna, further, the antenna also receives the data and transmits the data to the processor.

The processor is responsible for managing the bus and general processing, and can also provide various functions, including timing, peripheral interface, voltage regulation, power management, and other control functions. Instead, the memory may be configured to store data used by the processor when performing operations.

The embodiment of the present application also provides a computer-readable storage medium 502 storing a computer program. When the computer program is executed by the processor 501, the foregoing method embodiments are implemented.

The main purpose of the embodiments of the present application is to provide a SAR adjustment method, device, electronic equipment and storage medium, which can flexibly reduce the SAR value during the actual use of the electronic equipment by the user, and effectively protect the health and safety of the user.

Compared with configuring equipment in the production process to meet the standard requirements, the embodiments of the present application can obtain the influence parameters of each specific absorption rate SAR, and make different adjustments based on the degree of influence of each specific absorption rate SAR influence parameter, so that when using electronic During the equipment process, the electronic equipment can also adaptively adjust the SAR value, which not only improves the flexibility of SAR value adjustment, but also helps users minimize the SAR value during use, thereby effectively protecting the user's health.

That is, those skilled in the art can understand that all or part of the steps in the method of the above-mentioned embodiments can be completed by instructing related hardware through a program, the program is stored in a storage medium, and includes several instructions to make a device ( It may be a single-chip microcomputer, a chip, etc.) or a processor (processor) to execute all or part of the steps of the methods described in the various embodiments of the present application. The aforementioned storage media include: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disk or optical disc, etc., which can store program codes. .

Those of ordinary skill in the art can understand that the above-mentioned embodiments are specific embodiments for realizing the present application, and in practical applications, various changes can be made to it in form and details without departing from the spirit and spirit of the present application. scope.

Claims (12)

1. A specific absorption rate adjustment method, comprising:

   Obtain the SAR influence parameters of each specific absorption rate;

   According to the degree of influence of each SAR influencing parameter on the SAR value, the target SAR influencing parameter is obtained;

   According to the matching relationship between the preset SAR influence parameter and the SAR adjustment method, obtain the SAR adjustment method matching the target SAR influence parameter;

   The current SAR is adjusted to the target SAR according to the matching SAR adjustment manner.
2. The specific absorption rate adjustment method according to claim 1, wherein the target SAR influence parameter includes a plurality of SAR influence parameters, and the acquisition of a specific absorption rate adjustment method matching the target SAR influence parameter comprises:

   Respectively obtain the SAR adjustment modes that match the SAR influencing parameters in the target SAR influencing parameters;

   After the acquisition of target SAR impact parameters, it also includes:

   According to the influence degree of each SAR influence parameter in the target SAR influence parameter, the adjustment weight corresponding to each SAR adjustment mode is obtained;

   The adjusting the current SAR to the target SAR according to the matching SAR adjustment method includes:

   The current SAR is adjusted to the target SAR according to the adjustment weights corresponding to the SAR adjustment methods and the SAR adjustment methods.
3. The SAR adjustment method according to claim 1, wherein, after adjusting the current SAR to the target SAR according to the matching SAR adjustment method, further comprising:

   If the performance of the wireless network is lower than the first preset threshold, then obtaining a specific absorption rate adjustment method that matches the SAR impact parameter that characterizes the network characteristics;

   The adjustment is performed according to the SAR adjustment manner matched with the SAR influence parameter characterizing the network characteristics until the performance of the wireless network reaches the first preset threshold.
4. The specific absorption rate adjustment method according to any one of claims 1 to 3, wherein the SAR influencing parameters include at least one of the following: human-machine distance information; or human-machine contact body part information; or network coexistence information or wireless network performance information; or specific absorption rate safety standard information; or antenna power information.
5. The specific absorption rate adjustment method according to claim 4, wherein said obtaining target SAR influencing parameters according to the influence degree of each SAR influencing parameter on the SAR value comprises:

   If the SAR safety standard information changes, the target SAR impact parameter at least includes the SAR safety standard information;

   If the man-machine distance is within a preset range, the target SAR influencing parameters include at least man-machine distance information;

   If the human body part in contact with the human machine changes, the target SAR impact parameter at least includes information on the human body part in contact with the human machine;

   If at least two types of networks are connected at the same time, the target SAR impact parameters include at least network coexistence information;

   If the wireless network performance is lower than the first preset threshold, the target SAR impact parameter at least includes: wireless network performance information;

   If the currently used antenna SAR value is higher than the second preset threshold, the target SAR impact parameter at least includes: antenna power information.
6. The SAR adjustment method according to claim 4, wherein, if the target SAR influence parameter includes: network coexistence information, then the current SAR is adjusted according to the matching SAR adjustment method to Target SAR, including:

   Obtain the total power backoff value;

   Allocating a power backoff value to each network according to the network performance requirements of each network in the network coexistence information; wherein, the sum of the power backoff values allocated to each network is equal to a total power backoff value;

   The current SAR is adjusted to a target SAR according to the power back-off value allocated for each network.
7. The specific absorption rate adjustment method according to claim 4, wherein if the target SAR influence parameter includes: wireless network performance information, then the current specific absorption rate is adjusted to the target according to the specific absorption rate adjustment mode Specific absorption rate, including:

   Obtaining the power that can be increased by the wireless network according to the current specific absorption rate and the target specific absorption rate, if the performance of the wireless network after increasing the power is lower than a preset value, switching the antenna currently used by the wireless network to the target antenna, If the wireless network performance after switching to the target antenna is lower than a preset value, a prompt message for instructing the user to keep the distance between man and machine is issued.
8. The SAR adjustment method according to claim 4, wherein if the target SAR influence parameter includes: antenna power information; then the current SAR is adjusted to the target ratio according to the SAR adjustment mode. absorbency, including:

   Determine the antenna that satisfies the target specific absorption rate according to the antenna power information;

   Switch the currently used antenna to an antenna that meets the target SAR.
9. The method for adjusting the specific absorption rate according to claim 1, wherein said acquisition of each specific absorption rate SAR influencing parameter comprises:

   Radiation charge signal;

   acquiring a charge signal reflected by the radiated charge signal;

   The specific absorption rate SAR influencing parameter is obtained according to the reflected charge information.
10. A specific absorption rate adjustment device, comprising:

    The parameter acquisition module is configured to acquire the influence parameters of each specific absorption rate SAR;

    The mode acquisition module is set to acquire target SAR impact parameters according to the influence degree of each SAR impact parameter on the SAR value; according to the preset SAR impact parameters and specific absorption rate adjustment mode, acquire the target SAR impact parameter matching SAR adjustment method;

    The adjustment module is configured to adjust the current SAR to a target SAR according to the matching SAR adjustment method.
11. An electronic device comprising:

    at least one processor; and,

    a memory communicatively coupled to the at least one processor; wherein,

    The memory is stored with instructions executable by the at least one processor, the instructions are executed by the at least one processor, so that the at least one processor can perform any one of claims 1 to 9 SAR adjustment method.
12. A computer-readable storage medium storing a computer program, the computer program implementing the specific absorption rate adjustment method according to any one of claims 1 to 9 when the computer program is executed by a processor.

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