CN115348653A - Method and device, medium and electronic equipment for reducing electromagnetic wave specific absorption rate - Google Patents

Abstract

The disclosure provides a method for reducing the specific absorption rate of electromagnetic waves, a device for reducing the specific absorption rate of electromagnetic waves, a computer-readable medium and electronic equipment, and relates to the technical field of radiation adjustment. The method includes: determining a plurality of identification areas on the terminal device based on the position of the induction plate; acquiring sensing data corresponding to each identification area, and determining the identification area corresponding to the sensing data as a target when the sensing data satisfies a first preset condition Identifying the area: adjusting the transmitting power of the antenna included in the target identifying area according to the sensing data corresponding to the target identifying area, so as to reduce the total transmitting power of the target identifying area. The present disclosure divides the identification area of the terminal equipment based on the position of the induction plate, so that the antennas in different identification areas can be processed differently according to the different sensing data of the identification area, thereby avoiding all the problems of the entire terminal equipment to a certain extent. All antennas are retracted, resulting in loss of communication performance.

Description

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

technical field

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

Background technique

In order to protect human health and safety, mobile terminals at home and abroad need to meet the electromagnetic wave Specific Absorption Rate (Specific Absorption Rate, SAR) compliance requirements. In order to make SAR compliant, many manufacturers' R&D personnel will directly perform board-level rollback of antennas in actual usage scenarios. At the same time, in order to take into account the communication experience, some manufacturers will also connect 1-2 antennas of the communication equipment to the SAR sensor, and judge whether to perform board-level feedback on all antennas according to the "close" or "far away" scene recognized by the SAR sensor. retreat.

With the advancement of science and technology, communication technologies such as 5G continue to develop. In order to meet the needs of fast communication such as 5G, it is necessary to enhance the communication performance of terminal equipment such as mobile phones. Therefore, the number of antennas in terminal devices such as 5G mobile phones is increasing. At this time, if the management and control method of "board-level fallback" in the related technology is used directly, although the operation is simple, the communication performance is lost, which affects the actual communication experience of the user.

Contents of the invention

The purpose of the present disclosure is to provide a method for reducing the specific absorption rate of electromagnetic waves, a device for reducing the specific absorption rate of electromagnetic waves, a computer-readable medium, and an electronic device, thereby at least to a certain extent avoiding loss of communication performance caused by reducing the specific absorption rate of electromagnetic waves, etc. question.

According to the first aspect of the present disclosure, there is provided a method for reducing the specific absorption rate of electromagnetic waves, which is applied to a terminal device, and the terminal device includes a plurality of induction panels, and the method includes: determining multiple identifications on the terminal equipment based on the positions of the induction panels area; each identification area includes at least one induction plate; the induction data corresponding to each identification area is obtained, and when the induction data meets the first preset condition, the identification area corresponding to the induction data is determined as the target identification area; according to the target identification area The corresponding sensing data adjusts the transmission power of the antenna included in 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.

According to a second aspect of the present disclosure, there is provided a device for reducing the specific absorption rate of electromagnetic waves, which is applied to a terminal device, and the terminal device includes a plurality of induction panels, and the device includes: an area division module, configured to divide the terminal based on the position of the induction panel A plurality of identification areas are determined on the device; each identification area includes at least one sensing board; a target determination module is used to obtain the sensing data corresponding to each identification area, and when the sensing data meets the first preset condition, the sensing data corresponding to the The identification area is determined as the target identification area; the power adjustment module is used to adjust the transmission 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 transmission power of the target identification area, thereby reducing the electromagnetic wave specific absorption Rate.

According to a third aspect of the present disclosure, there is provided a computer-readable medium on which a computer program is stored, and when the computer program is executed by a processor, the above method is implemented.

According to a fourth aspect of the present disclosure, there is provided an electronic device, characterized in that it includes:

processor; and

The memory is used to store one or more programs, and when the one or more programs are executed by the one or more processors, the one or more processors implement the above method.

In the method for reducing the specific absorption rate of electromagnetic waves provided by an embodiment of the present disclosure, multiple identification areas are determined on the terminal device through the position of the induction plate, and then the target identification area that needs to be adjusted is determined according to the sensing data of each identification area, Further, the transmitting power of the antenna included in the target identification area is adjusted to reduce the total transmitting power of the target identification area, thereby reducing the SAR. According to the technical solution of the embodiment of the present disclosure, the identification area of the terminal device is divided based on the position of the induction plate, so that the antennas in different identification areas can be processed differently according to the different sensing data of the identification area, and then to a certain extent This avoids the problem that all antennas of the entire terminal device are retracted, resulting in loss of communication performance.

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 present disclosure.

Description of drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description serve to explain the principles of the disclosure. Apparently, the drawings in the following description are only some embodiments of the present disclosure, and those skilled in the art can obtain other drawings according to these drawings without creative efforts. In the attached picture:

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

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

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

Fig. 4 schematically shows a schematic diagram of an identification area of a terminal device in an exemplary embodiment of the present disclosure;

Fig. 5 schematically shows a schematic diagram of the close distribution of antenna hotspots in an exemplary embodiment of the present disclosure;

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

FIG. 7 schematically shows a schematic diagram of the position distribution of a mobile phone in an exemplary embodiment of the present disclosure;

Fig. 8 schematically shows a combination of sensor board states corresponding to a recognition area in an exemplary embodiment of the present disclosure;

Fig. 9 schematically shows another combination of sensing board states corresponding to the identification area in an exemplary embodiment of the present disclosure;

Fig. 10 schematically shows a schematic diagram of the position distribution of another mobile phone in an exemplary embodiment of the present disclosure;

Fig. 11 schematically shows another combination of sensing board states corresponding to the identification area in an exemplary embodiment of the present disclosure;

Fig. 12 schematically shows a schematic diagram of another identification area of a mobile phone in an exemplary embodiment of the present disclosure;

Fig. 13 schematically shows another combination of sensing board states corresponding to the identification area in an exemplary embodiment of the present disclosure;

Fig. 14 schematically shows a schematic diagram of another identification area of a mobile phone in an exemplary embodiment of the present disclosure;

Fig. 15 schematically shows the composition of the device for reducing the specific absorption rate of electromagnetic waves in an exemplary embodiment of the present disclosure.

Detailed ways

Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many 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 repeated descriptions thereof will be omitted. Some of the block diagrams shown in the drawings are functional entities and do not necessarily correspond to physically or logically separate entities. These functional entities may be implemented in software, or in one or more hardware modules or integrated circuits, or in different network and/or processor means and/or microcontroller means.

Fig. 1 shows a schematic diagram of a system architecture of an exemplary application environment in which a method and device for reducing the specific absorption rate of electromagnetic waves according to an embodiment of the present disclosure can 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 is used 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 wires, wireless communication links, or fiber optic cables, among others. The terminal devices 101, 102, and 103 may be electronic devices capable of communicating through antennas, including but not limited to desktop computers, portable computers, smart phones, and tablet computers. It should be understood that the numbers of terminal devices, networks and servers in Fig. 1 are only illustrative. According to the implementation needs, there can be any number of terminal devices, networks and servers. For example, the server 105 may be a server cluster composed of multiple servers.

The method for reducing the specific absorption rate of electromagnetic waves provided by the embodiments of the present disclosure is generally implemented in the terminal devices 101 , 102 , and 103 . However, those skilled in the art can easily understand that the method for reducing the specific absorption rate of electromagnetic waves provided by the embodiments of the present disclosure can also be executed by the server 105, and correspondingly, the device for reducing the specific absorption rate of electromagnetic waves can also be set in the server 105. This is not specifically limited in the exemplary embodiments. For example, in an exemplary embodiment, terminal devices 101, 102, and 103 may collect sensing data through multiple sensing panels on them, and then send the positions of the sensing panels and the collected sensing data to The server 105, the server 105 judges the target recognition area, and correspondingly controls the terminal devices 101, 102, 103 through the network 104 to adjust the transmission power of the antennas on them.

An exemplary embodiment of the present disclosure provides an electronic device for implementing a method for reducing the specific absorption rate of electromagnetic waves, which may be the terminal devices 101 , 102 , 103 or the server 105 in FIG. 1 . The electronic device includes at least a processor and a memory, the memory is used to store executable instructions of the processor, and the processor is configured to execute the method for reducing the specific absorption rate of electromagnetic waves by executing the executable instructions.

Taking the mobile terminal 200 in FIG. 2 as an example below, the structure of the electronic device will be exemplarily described. Those skilled in the art will appreciate that, in addition to components specifically intended for mobile purposes, the configuration in Fig. 2 can also be applied to equipment of a stationary type. In some other implementations, the mobile terminal 200 may include more or fewer components than shown, or combine some components, or separate some components, or arrange different components. The illustrated components may be realized in hardware, software, or a combination of software and hardware. The interface connection relationship among the various components is only schematically shown, and does not constitute a structural limitation on the mobile terminal 200 . In some other implementation manners, the mobile terminal 200 may also adopt an interface connection manner different from that in FIG. 2 , or a combination of multiple interface connection manners.

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 (Universal Serial Bus, USB) interface 230, a charging management module 240, a power management module 241, battery 242, antenna 1, antenna 2, mobile communication module 250, wireless communication module 260, audio module 270, speaker 271, receiver 272, microphone 273, earphone interface 274, sensor module 280, display screen 290, camera module 291, indication A device 292, a motor 293, a key 294, a subscriber identification module (subscriber identification module, SIM) card interface 295, and the like. The sensor module 280 may include a depth sensor 2801, a pressure sensor 2802, a gyro sensor 2803, and the like.

The processor 210 may include one or more processing units, for example: the processor 210 may include an application processor (Application Processor, AP), a modem processor, a graphics processor (Graphics Processing Unit, GPU), an image signal processor ( Image Signal Processor, ISP), controller, video codec, digital signal processor (Digital Signal Processor, DSP), baseband processor and/or neural network processor (Neural-Network Processing Unit, NPU), etc. Wherein, different processing units may be independent devices, or may be integrated in one or more processors.

The wireless communication function of the mobile terminal 200 can be realized 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. Among them, the antenna 1 and the antenna 2 are used to transmit and receive electromagnetic wave signals; the mobile communication module 250 can provide solutions for wireless communication including 2G/3G/4G/5G applied on the mobile terminal 200; the modem processor can include Modulator and demodulator; wireless communication module 260 can provide and be applied on mobile terminal 200 and comprise wireless local area network (Wireless Local Area Networks, WLAN) (such as wireless fidelity (Wireless Fidelity, Wi-Fi) network), bluetooth (Bluetooth) , BT) and other wireless communication solutions. In some embodiments, the antenna 1 of the mobile terminal 200 is coupled to the mobile communication module 250, and the antenna 2 is coupled to the wireless communication module 260, so that the mobile terminal 200 can communicate with the network and other devices through wireless communication technology.

In some embodiments, a mobile terminal may include a plurality of induction pads, each of which may be associated with at least one antenna. Correspondingly, the mobile terminal may also include multiple antennas. It should be noted that, in order to make the data collected by the sensor board correlate with the antenna, the sensor board and the antenna are usually set at the same position, and a common body is set. However, in some special cases, the sensing board can also be arranged at a position close to the antenna.

The SAR sensor 2801 is used to detect whether there is a human body approaching the antenna within a certain range from the antenna. The human body is a conductor. When it is close to the antenna (metal), the capacitance value sensed by the antenna will change. The SAR sensor can detect the proximity of the human body by detecting the capacitance change of the antenna.

A proximity light sensor 2802 may be used for object detection. For example, light emitting diodes (LEDs) and light detectors or photodiodes 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 uses a photodiode to detect infrared reflected light from nearby objects. When sufficient reflected light is detected, it may 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 use the proximity light sensor 2802 to detect that the user holds the mobile terminal 200 close to the ear to make a call, so as to automatically turn off the screen to save power. Proximity light sensor 2802 can also be used in leather case mode, automatic unlock and lock screen in pocket mode.

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

In some embodiments, since the SAR has a high correlation with the distance between the user and the emission source, the sensing data can be based on the user scene determined based on the distance change between the user and the mobile terminal, for example, the user is in a close scene, or the user is in a far away Scenes.

The gyro sensor 2803 can be used to determine the motion posture of the mobile terminal 200 . In some implementations, the gyro sensor 2803 can be used to determine the angular velocity of the mobile terminal 200 around three axes (ie, the x, y and z axes), so as to determine the motion posture of the mobile terminal 200 . In some embodiments, the preset operation may be determined as an operation to put the mobile terminal 200 in a specific posture. For example, when the user places the mobile terminal next to the ear through motion gestures, a division strategy may be determined to determine upper and lower recognition areas on the mobile terminal.

In addition, sensors with other functions can also be set in the sensor module 280 according to actual needs, such as pressure sensors, distance sensors, air pressure sensors, magnetic sensors, acceleration sensors, depth sensors, proximity light sensors, fingerprint sensors, temperature sensors, touch sensors, Ambient light sensor, bone conduction sensor, etc.

Electromagnetic wave specific absorption rate (Specific Absorption Rate, SAR) refers to the electromagnetic radiation energy absorbed by a unit mass of matter per unit time. In the currently commonly used 5G mobile terminals, regardless of domestic or overseas markets, the SAR value needs to be controlled according to local regulations. The traditional direct "board-level fallback" whole-machine SAR control method achieves the goal of reducing SAR by reducing the transmission power of the whole machine antenna. Although this method is simple to operate, it loses communication performance and affects the user's actual communication experience. Considering the balance between SAR and communication performance, using sensors to reduce SAR is indeed an optimal choice. However, in 5G terminal equipment, the number of antennas is increasing. Traditionally, a sensor is connected to 1 or 2 induction plates (equivalent to associating two antennas) to reduce SAR. Therefore, the comprehensive linkage use of multiple antennas and multiple induction plates needs to be developed urgently.

Based on one or more of the above problems, this exemplary embodiment provides a method for reducing the specific absorption rate of electromagnetic waves through the comprehensive use of multiple induction plates (equivalent to associated multiple antennas). Avoid loss of communication performance on the basis of compliance with SAR safety rules. The method for reducing the specific absorption rate of electromagnetic waves may be applied to the above-mentioned server 105, and may also be applied to one or more of the above-mentioned terminal devices 101, 102, and 103, which is not specifically limited in this exemplary embodiment.

Wherein, in order to acquire sensing data, the terminal device may include multiple sensing boards for collecting 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 can be used to detect the user distance, and then determine whether the user is in the state of approaching the terminal device or in the state of being far away 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 sensing data is different, the sensing board used may be a sensing board for collecting different sensing data. For example, the sensing data regarding whether the user exerts pressure on the terminal device may be collected through the sensing board corresponding to the pressure sensor.

Referring to Fig. 3, the method for reducing the 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 sensor board.

Wherein, in order to obtain the sensing data corresponding to each identification area, each identification area needs to include at least one induction plate.

In an exemplary embodiment, when the position of the sensor panel of the terminal device is different, or the user has different habits of using the terminal device, the corresponding SARs of antennas at different positions on the terminal device under the same transmission power are different. Therefore, when the identification area is determined on the terminal device based on the position of the sensor board, different division strategies may be used to determine the identification area.

In an exemplary embodiment, when determining the identification area, a corresponding division strategy may be firstly determined according to a user's preset operation. A plurality of identification areas are then determined in the terminal device based on the division strategy and the position of the sensor board. For example, when the partitioning strategy corresponding to the preset operation is to determine the upper and lower partitions on the terminal device, assuming that the position of the sensor board on the terminal device is as shown in Figure 4, then it can be determined in the terminal device as shown in Figure 4 The upper and lower recognition areas.

In addition, when the user's usage habits are different or the location of the sensor panel of the terminal device is different, the requirements for dividing the recognition area are also different. At this time, multiple identification areas may be determined in the terminal device according to requirements. It should be noted that, in the case where each sensor board is associated with an antenna, in order to make all the antennas within the adjustment range and the adjustment process does not conflict with each other, when dividing the identification areas, each identification area is mutually exclusive, and all The collection of identification areas includes all sensing panels (that is, each sensing panel corresponds to a unique identification area).

In step S320, the sensing data corresponding to each recognition area is acquired, and when the sensing data satisfies the first preset condition, the recognition area corresponding to the sensing data is determined as the target recognition area.

Wherein, the sensing data may include data corresponding to factors that affect the SAR. For example, if the SAR is related to the distance between the user and the emission source, the sensing data may include the distance between the user and the emission source; for another example, if the SAR is related to whether the user touches the terminal device, the sensing data may include whether the user touches the terminal device . In addition, in different usage scenarios, the influencing factors of SAR may be different, so different settings can be made according to the usage scenarios.

In an exemplary embodiment, when sensing data corresponding to an identification area is acquired, it may occur that an identification area includes multiple sensing plates. At this time, for a recognition area including multiple sensing boards, the sensing result of each sensing board may be obtained first, and then the sensing results of all the sensing boards in the recognition area may be used as sensing data of the recognition 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 two scenarios: the user approaching the scene and the user moving away from the scene. At this time, the sensing result of the sensing pad can be determined according to the change of the distance between the sensing pad and the user. For example, when it is detected that the distance changes from large to small, it can be determined that the user is approaching the scene; conversely, when it is detected that the distance changes from small to large, it can be determined that the user is away from the scene. In addition, the determination may also be made by means of a relationship between the detection distance and the set distance, etc., which is not specifically limited in the present disclosure.

In an exemplary embodiment, the sensing data may include a scene of a distance change between the user and the sensing board, that is, whether the sensing board is currently in a scene where the user is approaching or a scene where the user is away. When the sensing data of the identification area includes sensing results corresponding to multiple sensing panels, the first preset condition may include that the sensing data corresponding to the identification area includes at least one sensing result of the sensing panel as a user approaching scene. In addition, when the sensing data is different, the first preset condition can be set according to requirements.

In step S330, the transmitting power of the antenna included in the target identifying area is adjusted according to the sensing data corresponding to the target identifying area, so as to reduce the total transmitting power of the target identifying 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 transmit power of the antenna to be adjusted is adjusted according to a preset fallback parameter, To reduce the total transmit power in the target identification area. It should be noted that since the target recognition area satisfies the first preset condition, all the antennas in the target recognition area can be directly used as the antennas to be adjusted, and then the transmit power of all antennas can be backed off by preset backoff parameters to achieve Reduce the total reflected power of the entire target recognition area, thereby achieving the purpose of reducing SAR.

Further, since the sensing results of each sensing plate in the target recognition area are still different, correspondingly, a part of antennas in the target recognition area may be determined as antennas to be adjusted according to the sensing data of the target recognition area. Specifically, the induction board may be associated with at least one antenna according to the arrangement positions of the induction board and the antenna. Then, regarding the sensing result of each sensing board in the target area, when the sensing result satisfies the second preset condition, all antennas associated with the sensing board are determined as antennas to be adjusted.

Wherein, when the sensing data includes a scene of distance change between the user and the sensor pad, the second preset condition may be that the sensing result corresponding to the sensor pad is a scene of the user approaching. 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 distribution of antenna hotspots is close, the same sensor board may also be associated with multiple antennas. For example, as shown in Figure 5, when the two antennas are placed mouth to mouth, that is, when the distribution of hot spots of the two antennas is close, the hot spots of ANT4 and 8 are close to each other, and they are all distributed in the gap. If one of the ANT4 antennas is connected to the sensor board, the sensor board will recognize When approaching, not only ANT4 but also ANT8 can be linked. So this sensor board is associated with ANT4 and 8 at the same time. If the sensing board recognizes approaching, ANT4 and 8 both back off, and when the sensing board recognizes moving away, ANT4 and 8 both work at full power. Wherein, the aforementioned antenna hotspot refers to a position on the antenna with the highest SAR value obtained by performing SAR detection or simulation on a certain antenna.

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

Wherein, the proximity sensing board may be determined according to the distance from the target antenna, or may be determined according to other methods, and the number thereof may be one or more. It should be noted that, when there are multiple adjacent sensing plates, the target antenna may be determined as the antenna to be adjusted when the sensing result corresponding to at least one adjacent sensing plate satisfies the second preset condition. For example, in the identification area shown in FIG. 6 , antenna B is the target antenna not associated with the sensing board. At this time, according to the distance, it can be determined that both sensing board A and sensing board C are adjacent sensing boards corresponding to antenna B. 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, when the user is constantly moving, the corresponding sensing results of each sensing board are also constantly changing, so the sensing data of the sensing board can be monitored in real time, and the sensing data that has been determined as the target recognition area occurs. change, so that when the sensing data corresponding to the target recognition area does not meet the first preset condition, the transmission power of all antennas included in the target recognition area can be restored to the preset power, for example, the sensing data corresponding to the target recognition area does not meet the first preset condition. Under a preset condition, the transmitting power of all antennas included in the target identification area can be restored to full power.

Taking the scenario of reducing the SAR of the mobile phone and sensing data as the distance between the user and the sensing board as an example, the technical solutions of the embodiments of the present disclosure are described in detail below:

Assume that the SAR sensor of the mobile phone has multiple detection channels, and each detection channel is connected to a sensor board for sensing data collection. In the initial state, each antenna works at full power. Wherein, both the induction plate and the antenna are arranged on the back of the mobile phone.

Example 1

Referring to Figure 7, three induction boards are set in the mobile phone. The distribution positions of the three induction boards may be that induction board 1 and induction board 2 are in the upper antenna area, and induction board 3 is in the lower antenna area. Each induction board is associated with an antenna.

At this time, each sensing panel of the SAR sensor may be individually identified as a recognition area, and the first preset condition may be that the sensing data is a user approaching the scene. Taking the sensor board 1 as an example, if the sensor board 1 recognizes that the user is approaching the scene, the recognition area corresponding to the sensor board 1 is the target recognition area, and the associated antenna (the antenna to be adjusted) of the sensor board 1 is controlled to perform corresponding antenna level fallback; If the sensor board 1 recognizes that the user is far away from the scene, the recognition area corresponding to the sensor board 1 is not the target recognition area, and the associated antenna of the sensor board 1 is controlled to work at full power. Similarly, the sensor board 2 and the sensor board 3 both have the same control scheme, and the state combination of the sensor board 1-3 occupying the fallback table can be seen in FIG. 8 .

It should be noted that this embodiment in which each sensing panel of the SAR sensor is individually identified as an identification area may occupy a large number of states in the fallback table. For example, 3 sensor boards will occupy 2 ³ states. If more sensor panels are installed in the mobile phone, the required fallback table status will increase exponentially.

Example 2

In order to reduce the number of fallback table states, multiple recognition areas can be obtained by combining the sensing panels in the mobile phone. Referring to Figure 4, three induction boards are installed in the mobile phone. The distribution positions of the three induction boards may be that induction board 1 and induction board 2 are in the upper antenna area, and induction board 3 is in the lower antenna area. The induction board 1 and the induction board 2 in the area are regarded as the identification area 1, and the induction board 3 in the lower antenna area is regarded as the identification area 2.

At this time, the first preset condition may be that any sensing result in the sensing data is the user approaching the scene. Taking recognition area 1 as an example, if the sensing result corresponding to any sensor board in recognition area 1 is that the user is approaching the scene, then the associated antennas of the sensor boards (antennas to be adjusted) in the entire recognition area 1 will be rolled back; if the recognition area If the sensing results corresponding to all the sensing boards in 1 are that the user is far away from the scene, keep the associated antennas of the sensing boards in the entire recognition area 1 working at full power. Similarly, the recognition area 2 adopts the same control method to judge the scene of the recognition area 2.

Compared with Embodiment 1, this method can save the number of states in the required rollback table (the required number is 4, as shown in Figure 9), and can improve the recognition accuracy of the recognition area 1, while ensuring When holding the bottom of the phone or holding the top of the phone, there is always an antenna working at full power.

Example 3

In an exemplary embodiment, in order to reduce the position occupied by the sensor board in the mobile phone, it may happen that the antenna is not associated with the sensor board. Referring to the identification area shown in FIG. 6 , the antennas A and C on adjacent sides of the antenna B are associated with a sensing board, but the middle antenna B is not associated with a sensing board.

Table 1 The induction results of the induction board and the 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. Assuming that sensor board A is connected to antenna A, and sensor board C is connected to antenna C, and the sensing result corresponding to any sensor board of sensor board A or sensor board C is that the user is close to the scene, it can be assumed that antenna B is also the antenna to be adjusted, and feedback is required. retreat. And when the sensing results corresponding to the sensing board A and the sensing board C are that the user is away from the scene, the recognition area will not be determined as the target recognition area, and the corresponding antenna B will not be used as the antenna to be adjusted. Therefore, the antennas A, B, and C are kept working at full power. Specifically, the sensing results of each sensing board and the corresponding determined antenna to be adjusted are shown in Table 1.

Through this setting method, the antennas associated with no sensing board can be controlled based on the sensing results of adjacent sensing boards, and the absence of hardware sensing boards can be optimized based on the default setting.

Example 4

In addition, multiple antennas in the mobile phone can be selected to be associated with multiple sensing panels of the SAR sensor. Some antennas cannot be associated with the sensing panels. Multiple antennas can also be connected to the same sensing panel of the SAR sensor by approaching hot spots as shown in Figure 5. Sensing board association.

In an exemplary embodiment, the number of induction panels in the mobile phone can be expanded to be consistent with the number of antennas of the mobile phone, for example, there are 10 antennas in the whole machine, and 10 induction panels are associated.

As shown in Figure 10 below, for example, the whole machine has 10 induction boards 1-10 respectively connected to the control unit of the SAR sensor, where the control unit of the SAR sensor can include one SAR sensor or multiple SAR sensors, and the 10 induction boards Represents at least 10 associated antennas. In terms of the position distribution of the 10 sensing boards, it is assumed that 5 sensing boards are distributed in the antenna area of the upper half of the mobile phone, and 5 sensing boards are distributed in the antenna area of the lower half of the mobile phone. The distribution of the sensing boards of such a SAR sensor can be combined into Identify multiple regions.

In one embodiment, each sensing board can be used as a recognition area for pair recognition. As shown in Figure 10, taking the sensor board 1 as an example, if the sensor board 1 recognizes that the user is approaching the scene, the antenna associated with the sensor board 1 can back off accordingly; if the sensor board 1 recognizes that the user is far away from the scene, the sensor board 1 1 Control the associated antenna without adjustment, that is, work at full power. Similarly, the sensing board 2 , the sensing board 3 . . . the sensing board N all have the same control scheme. As shown in Figure 11, each sensing board can independently identify the scene where the user is approaching/faring away, which can maximize the use of sensor functions and preserve communication performance to the greatest extent, that is, the number of antennas working at full power in any scene is higher than other The combination method is the most, but this method will occupy a large amount of state in the rollback table. Taking the current Qualcomm or MTK platform as an example, each version is limited to 20 states, and there are 2 to ¹⁰ combinations of sensing results in the way that 10 sensing boards respectively control their respective antennas for fallback, that is, the software requires at least 2 to ¹⁰ states. The limit on the number of states in the fallback table is exceeded, but if the number of sensor boards in the whole machine is small, this identification method can be used on the current platform.

In another embodiment, the sensor panel of the mobile phone is divided into two parts, an upper identification area and a lower identification area. As shown in Figure 12, if the sensing result of any one or more of the sensing boards 1-5 in the upper recognition area is that the user is approaching the scene, then the antennas corresponding to the entire upper recognition area are rolled back; if all If the sensing result of the sensing board is that the user is far away from the scene, keep the corresponding antenna still working at full power. In the same way, the five sensor panels on the lower half of the phone control the lower recognition area in the same way. The biggest advantage of this method is to save the number of states required by the software platform. The state requirements are shown in Figure 13. When the number of states is not enough, SAR can be reduced in this way. While the recognition accuracy of the recognition area can be improved, it can also It can ensure that the antenna works at full power when the user holds the bottom of the mobile phone with one hand or the top of the mobile phone with one hand.

In addition, it should be noted that, when dividing the area of the sensing board, it can also be combined according to actual needs. For example, a mobile phone is provided with 10 sensing panels in total, which are divided into 6 identification areas as shown in FIG. 14 . Among them, as long as there is one sensing result of the sensing board in each recognition area that the user is approaching the scene, the recognition area can be determined as the target recognition area, and the transmission power of the antenna in it can be adjusted; only all sensing boards in the recognition area The corresponding sensing result is that the user is far away from the scene, so that it can be judged that the entire recognition area is not the target recognition area. Compared with the method of merging some sensor boards as a recognition area, this method of merging some sensor boards can reduce the number of states in the rollback table, and at the same time, it can take into account a variety of usage scenarios. For example, it can ensure that the antenna works at full power when the user holds the bottom of the phone with one hand or the top of the phone with one hand; another example, it can also ensure that in the game scene where the user holds the phone in different postures when the screen is in landscape orientation, as long as If the identification area is not the target identification area, it can be guaranteed that the antennas in the identification area are all working at full power.

It should be noted that the above-mentioned figures are only schematic illustrations of processes included in the method according to the exemplary embodiments of the present disclosure, and are not intended to be limiting. It is easy to understand that the processes shown in the above figures do not imply or limit the chronological order of these processes. In addition, it is also easy to understand that these processes may be executed synchronously or asynchronously in multiple modules, for example.

Further, as shown in FIG. 15 , the implementation of this example also provides a device 1500 for reducing the specific absorption rate of electromagnetic waves, which is applied to a terminal device. The terminal device includes a plurality of induction panels, and the device includes an area division module 1510, Target determination module 1520 and power adjustment module 1530 . in:

The area dividing module 1510 may be configured to determine multiple identification areas on the terminal device based on the position of the induction board; each identification area includes at least one induction board.

The target determination module 1520 may be configured to acquire sensing data corresponding to each recognition area, and determine the recognition area corresponding to the sensing data as the target recognition area when the sensing data satisfies a first preset condition.

The power adjustment module 1530 can be used to adjust the transmission power of the antennas contained 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, thereby reducing the specific absorption rate of electromagnetic waves.

In an exemplary embodiment, the target determination module 1520 can be used to obtain, for each recognition area, the sensing results of each sensing board in the recognition area; and determine the sensing results corresponding to all the sensing boards included in the recognition area as the corresponding sensing data.

In an exemplary embodiment, the power adjustment module 1530 can be used to determine the antenna to be adjusted in the target identification area according to the sensing data corresponding to the target identification area; reduce the transmit power corresponding to the antenna to be adjusted according to a preset backoff parameter, so as to reduce The total transmit power in 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 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 can be used to determine the adjacent sensing board in the target identification area according to the position of the target antenna; when the sensing result corresponding to at least one adjacent sensing board satisfies the second preset condition, the target The antenna is determined 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 meet the first preset condition.

In an exemplary embodiment, the area division module 1510 can be configured to determine a division strategy according to the preset operation when receiving the user's preset operation; area.

The specific details of each module in the above device have been described in detail in the implementation of the method, and details not disclosed can be found in the implementation of the method, so details are not repeated here.

Those skilled in the art can understand that various aspects of the present disclosure can be implemented as a system, method or program product. Therefore, various aspects of the present disclosure can be embodied in the following forms, namely: a complete hardware implementation, a complete software implementation (including firmware, microcode, etc.), or a combination of hardware and software, which can be collectively referred to herein as "circuit", "module" or "system".

Exemplary embodiments of the present disclosure also provide a computer-readable storage medium on which a program product capable of implementing the above-mentioned method in this specification is stored. In some possible implementations, various aspects of the present disclosure can also be implemented in the form of a program product, which includes program code. When the program product runs on the terminal device, the program code is used to make the terminal device execute the above-mentioned For the steps described in the section "Exemplary Methods" according to various exemplary embodiments of the present disclosure, for example, any one or more steps in FIG. 3 may be performed.

It should be noted that the computer-readable medium shown in the present disclosure may be a computer-readable signal medium or a computer-readable storage medium or any combination of the above two. A computer readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination thereof. More specific examples of computer-readable storage media may include, but are not limited to, electrical connections with one or more wires, portable computer diskettes, hard disks, random access memory (RAM), read-only memory (ROM), erasable Programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), optical storage device, magnetic storage device, or any suitable combination of the above.

In the present disclosure, a computer-readable storage medium may be any tangible medium that contains or stores a program that can be used by or in conjunction with an instruction execution system, apparatus, or device. In the present disclosure, however, a computer-readable signal medium may include a data signal propagated in baseband or as part of a carrier wave carrying computer-readable program code therein. Such propagated data signals may take many forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the foregoing. A computer-readable signal medium may also be any computer-readable medium other than a computer-readable storage medium, which can send, propagate, or transmit a program for use by or in conjunction 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, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.

Additionally, program code for performing the operations of the present disclosure may be written in any combination of one or more programming languages, including object-oriented programming languages—such as Java, C++, etc., as well as conventional procedural Programming language - such as "C" or a similar programming language. 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 to execute. In cases involving a remote computing device, the remote computing device 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 an external computing device (e.g., using an Internet service provider). business to connect via the Internet).

Other embodiments of the disclosure will be readily apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any modification, use or adaptation of the present disclosure, and these modifications, uses or adaptations follow the general principles of the present disclosure and include common knowledge or conventional technical means in the technical field not disclosed in the present disclosure . The specification and examples are to be considered exemplary only, with the true scope and spirit of the disclosure indicated by the appended claims.

It should be understood that the present disclosure is not limited to the precise constructions which have been described above and shown in the drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims (10)

1. A method for reducing the specific absorption rate of electromagnetic waves, which is applied to terminal equipment, is characterized in that the terminal equipment comprises a plurality of induction plates, and the method comprises: Determining a plurality of identification areas on the terminal device based on the position of the induction board; each of the identification areas includes at least one induction board; Acquiring sensing data corresponding to each of the identification areas, and determining the identification area corresponding to the sensing data as a target identification area when the sensing data satisfies a first preset condition; The transmitting power of the antenna included in the target identifying area is adjusted according to the sensing data corresponding to the target identifying area, so as to reduce the total transmitting power of the target identifying area, thereby reducing the specific absorption rate of electromagnetic waves. 2. The method according to claim 1, wherein said acquiring sensing data corresponding to each said identification area comprises: For each of the identification areas, acquiring a sensing result of each of the induction plates in the identification area; Determining the sensing results corresponding to all the sensing plates included in the identification area as sensing data corresponding to the identification area. 3. The method according to claim 1, wherein the adjustment of the transmitting power of the antenna included in the target identification area according to the sensing data corresponding to the target identification area comprises: determining the antenna to be adjusted in the target identification area according to the sensing data corresponding to the target identification area; The transmission power corresponding to the antenna to be adjusted is reduced according to a preset backoff parameter, so as to reduce the total transmission power of the target identification area. 4. The method of claim 3, wherein the induction pad is associated with at least one of the antennas; The determining the antenna to be adjusted in the target identification area according to the sensing data corresponding to the target identification area includes: When the sensing result corresponding to the sensing board satisfies the second preset condition, all the antennas associated with the sensing board are determined as antennas to be adjusted. 5. The method according to claim 3, wherein, when the target recognition area includes a target antenna not connected to the induction plate, the method further comprises: determining a proximity sensor panel in the target recognition area based on the position of the target antenna; When the sensing result corresponding to at least one of the adjacent sensing plates satisfies a second preset condition, the target antenna is determined as the antenna to be adjusted. 6. The method according to claim 1, wherein the transmitting power of the antenna contained in the target recognition area is adjusted according to the sensing data corresponding to the target recognition area, so as to reduce the After identifying the total transmit power for the region, the method further includes: When the sensing data corresponding to the target identification area does not satisfy the first preset condition, restore the transmission power of all the antennas included in the target identification area to a preset power. 7. The method according to claim 1, wherein the determining a plurality of identification areas on the terminal device based on the position of the induction panel comprises: When receiving a user's preset operation, determine a division strategy according to the preset operation; Based on the division strategy, multiple identification areas are determined on the terminal device according to the position of the sensor board. 8. A device for reducing the specific absorption rate of electromagnetic waves, applied to terminal equipment, characterized in that the terminal equipment includes a plurality of induction plates, and the device includes: An area division module, configured to determine a plurality of identification areas on the terminal device based on the position of the induction plate; each identification area includes at least one induction plate; A target determination module, configured to acquire sensing data corresponding to each of the recognition areas, and determine the recognition area corresponding to the sensing data as a target recognition area when the sensing data satisfies a first preset condition; The power adjustment module is configured to adjust the transmission power of the antenna contained 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, thereby reducing the specific absorption rate of electromagnetic waves. 9. A computer-readable medium, on which a computer program is stored, wherein the computer program implements the method according to any one of claims 1 to 7 when executed by a processor. 10. An electronic device, characterized in that it comprises: processor; and a memory for storing executable instructions of the processor; Wherein, the processor is configured to execute the method according to any one of claims 1 to 7 by executing the executable instructions.

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