Antenna specific absorption rate detection method, apparatus, and electronic device

Abstract

The application discloses an antenna specific absorption rate detection method, device and electronic equipment, and belongs to the field of electronic equipment. The antenna specific absorption rate detection method comprises the following steps: determining L detection channels, and M inductive antennas and detection parameters corresponding to each detection channel according to the working state of N inductive antennas; indicating the detection parameters corresponding to each detection channel to the specific absorption rate sensor, and indicating the connection circuit unit to connect the switch circuit between the M inductive antennas; and performing specific absorption rate detection on the L detection channels by the specific absorption rate sensor according to the detection parameters corresponding to each detection channel; wherein, N is a positive integer greater than 1, M is a positive integer less than or equal to N, and L is a positive integer.

Description

Technical Field

[0001] This application belongs to the field of electronic equipment, and specifically relates to an antenna specific absorption rate detection method, device and electronic equipment. Background Technology

[0002] With users spending increasingly more time on electronic devices such as mobile phones and tablets, and with growing awareness of safety, there is growing concern about mobile phone radiation. Internationally, Specific Absorption Ratio (SAR) is used to measure the energy of mobile phone radiation absorbed by the human body. SAR sensors can be installed on electronic devices. These sensors typically use an antenna suspended outside the device's ground plane as a sensing antenna. The change in capacitance between the human body and the sensing antenna is used to determine if a human is nearby, and if so, a SAR reduction scheme is activated to decrease radiation power.

[0003] As the number of antennas in electronic devices increases and the sensing areas of different antennas vary, the SAR sensors may not be able to accurately detect the specific absorption rate of the sensing antennas under different operating conditions. This may lead to false triggering of SAR reduction schemes to lower radiated power, resulting in unnecessary power backoff and affecting the performance of electronic devices. Summary of the Invention

[0004] The purpose of this application is to provide an antenna specific absorption rate detection method, device, and electronic device, which can solve the problem that the specific absorption rate detection of the SAR sensor for the sensing antenna cannot meet the actual needs of the sensing antenna, and may cause false triggering of calling the SAR reduction scheme to reduce radiation power.

[0005] In a first aspect, embodiments of this application provide a method for detecting antenna specific absorption rate, the method comprising:

[0006] Based on the operating status of the N sensing antennas, L detection channels are determined, along with M sensing antennas and detection parameters corresponding to each detection channel;

[0007] Indicate the detection parameters corresponding to each detection channel to the specific absorption rate sensor, and instruct the connection circuit unit to connect the switching circuit between the M sensing antennas;

[0008] The specific absorption rate sensor performs specific absorption rate detection on the L detection channels according to the detection parameters corresponding to each detection channel.

[0009] Wherein, N is a positive integer greater than 1, M is a positive integer less than or equal to N, and L is a positive integer.

[0010] Secondly, embodiments of this application provide an antenna specific absorption rate detection device, comprising:

[0011] The execution module is used to determine L detection channels, M sensing antennas and detection parameters corresponding to each detection channel, based on the working status of the N sensing antennas.

[0012] The transmission module is used to indicate the detection parameters corresponding to each detection channel to the specific absorption rate sensor, and to instruct the connection circuit unit to connect the switching circuit between the M sensing antennas.

[0013] The execution module is also used to perform specific absorption rate detection on the L detection channels using the specific absorption rate sensor according to the detection parameters corresponding to each detection channel;

[0014] Wherein, N is a positive integer greater than 1, M is a positive integer less than or equal to N, and L is a positive integer.

[0015] Thirdly, embodiments of this application provide an electronic device including a processor and a memory, wherein the memory stores programs or instructions executable on the processor, and the programs or instructions, when executed by the processor, implement the steps of the method described in the first aspect.

[0016] Fourthly, embodiments of this application provide a readable storage medium on which a program or instructions are stored, which, when executed by a processor, implement the steps of the method described in the first aspect.

[0017] Fifthly, embodiments of this application provide a chip, the chip including a processor and a communication interface, the communication interface being coupled to the processor, the processor being used to run programs or instructions to implement the method as described in the first aspect.

[0018] In a sixth aspect, embodiments of this application provide a computer program product stored in a storage medium, which is executed by at least one processor to implement the method described in the first aspect.

[0019] In this embodiment, by determining the M sensing antennas and detection parameters corresponding to each detection channel based on the operating states of the N sensing antennas, the specific absorption rate sensor is instructed to provide the detection parameters corresponding to each detection channel, and the connection circuit unit is instructed to connect the switching circuits between the M sensing antennas. Through this embodiment, the SAR sensor's specific absorption rate detection of the sensing antennas can accurately reflect the actual operating states of the antennas. The sensing distance obtained based on the specific absorption rate detection results can meet the different sensing distance requirements of various application scenarios, avoiding the need to invoke sensor-based SAR reduction schemes to lower the probability of false triggering due to radiated power. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application;

[0021] Figure 2 This is a schematic flowchart of an antenna specific absorption rate detection method provided in an embodiment of this application;

[0022] Figure 3 This is a schematic diagram of the structure of another electronic device provided in an embodiment of this application;

[0023] Figure 4 This is a schematic diagram of the working process of an electronic device provided in an embodiment of this application;

[0024] Figure 5 This is a schematic diagram of the structure of another electronic device provided in an embodiment of this application;

[0025] Figure 6 This is a schematic diagram of the structure of another electronic device provided in an embodiment of this application;

[0026] Figure 7 This is a schematic diagram of the workflow of another electronic device provided in an embodiment of this application;

[0027] Figure 8 This is a schematic diagram of the structure of another electronic device provided in an embodiment of this application;

[0028] Figure 9 This is a schematic diagram of the workflow of another electronic device provided in an embodiment of this application;

[0029] Figure 10 This is a schematic diagram of the structure of another electronic device provided in an embodiment of this application;

[0030] Figure 11 This is a schematic diagram of the structure of another electronic device provided in an embodiment of this application;

[0031] Figure 12 This is a schematic diagram of the structure of an antenna specific absorption rate detection device provided in an embodiment of this application;

[0032] Figure 13 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application;

[0033] Figure 14 This is a schematic diagram of the hardware structure of an electronic device that implements an embodiment of this application. Detailed Implementation

[0034] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0035] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0036] The antenna specific absorption rate detection method provided in this application will be described in detail below with reference to the accompanying drawings, through specific embodiments and application scenarios.

[0037] like Figure 1 As shown, this application provides an electronic device 100, which includes a SAR sensor 10, N sensing antennas 20 and a connection circuit unit 30. The SAR sensor 10 is connected to the N sensing antennas 20 through the connection circuit unit 30, and the connection circuit unit 30 includes a switching circuit between the N sensing antennas.

[0038] N is a positive integer greater than 1. N inductive antennas 20 indicates that the electronic device 100 may include at least two inductive antennas, such as 2, 3, 4, 5, 6, etc.

[0039] The SAR sensor 10 can form L detection channels 11 through the connecting circuit unit 30 to perform SAR detection on the induction antenna 20 connected to each detection channel 11. Here, L is a positive integer, and L detection channels 11 indicate that the SAR sensor 10 can perform specific absorption rate detection on one or more detection channels 11. The SAR sensor can perform SAR detection on at least one induction antenna 20 connected to each detection channel 11 to obtain the SAR detection result corresponding to each detection channel 11, such as the SAR value. Based on the SAR detection result, the distance between the induction antenna 20 and the human body is obtained to determine whether a human body is approaching, and thus whether the radiation power of the induction antenna needs to be adjusted.

[0040] The switching circuits between the N induction antennas 20 can be configured according to actual needs. For example, a switching circuit can be set between any two induction antennas of the N induction antennas 20; or a switching circuit can be set between two induction antennas that are cascaded according to a pre-set cascading relationship and cascading order. The switching circuits in the connection circuit unit 30 can be closed or opened according to the received indication signal.

[0041] It should be noted that the connection circuit unit 30 also includes a high-frequency isolation component between each sensing antenna 20, and the state of the switch (closed or open) will not affect the radiation performance of each sensing antenna.

[0042] The connection circuit unit 30 may further include a connection circuit between the SAR sensor forming each detection channel and the N sensing antennas. In one embodiment, the SAR sensor can be fixedly connected to one of the N sensing antennas via a detection channel, for example, fixedly connected to a first sensing antenna via a first detection channel and fixedly connected to a second sensing antenna via a second detection channel. A fixed connection means that it remains in an on state without a switching circuit. In another embodiment, the connection circuit unit further includes a switching circuit between the SAR sensor and the N sensing antennas in each detection channel. The connection circuit unit switches the circuit lines according to a received indication signal to form each detection channel.

[0043] For simplicity, the following embodiments will be illustrated by taking the example of each detection channel being fixedly connected to an induction antenna.

[0044] like Figure 2 As shown in the figure, this application provides a method for detecting the antenna specific absorption rate of an electronic device as described above, the method comprising the following steps.

[0045] S210. Based on the working status of the N sensing antennas, determine L detection channels, and M sensing antennas and detection parameters corresponding to each detection channel; wherein, the M sensing antennas are the detection objects of the specific absorption rate sensor in the N sensing antennas through each detection channel for specific absorption rate detection, and M is a positive integer less than or equal to N.

[0046] A SAR sensor is essentially a sensor that detects the capacitance value of an inductive antenna, calculated using the following capacitance formula:

[0047] C = εS / (4πkd)

[0048] Where ε is the dielectric constant and k is the electrostatic constant, with a constant capacitance C, the sensing distance d will also change when the sensing area S of the induction antenna changes. For example, an increase in S will cause an increase in d.

[0049] Since different sensing antennas may correspond to different sensing areas, and the equivalent sensing area obtained after connecting different numbers of sensing antennas is also different, in order to make the SAR sensor more suitable for the actual use of sensing antennas, the electronic equipment can determine the M sensing antennas that the SAR sensor needs to detect through each detection channel, as well as the detection parameters corresponding to each detection channel, based on the working status of N sensing antennas.

[0050] The detection parameters corresponding to each detection channel can be determined based on the sensing area of ​​the M sensing antennas connected to each detection channel. The detection parameters may include the sensing distance and relevant thresholds for determining whether a human body is approaching, such as the SAR threshold.

[0051] The operating states of N induction antennas can include at least one of the following:

[0052] The operating status of each of the N induction antennas, such as whether it is working, how it works, and the corresponding frequency band and beam direction when it is working. Specifically, it can be divided into single-shot state and concurrent state according to the number of induction antennas working at the same time. The single-shot state is used to indicate that only one induction antenna is working at the same time, while the concurrent state is used to indicate that multiple induction antennas are working at the same time.

[0053] The location of the antenna hotspot is used to determine the induction antenna corresponding to the location of the antenna hotspot;

[0054] The connection relationship between each detection channel and the induction antenna is used to determine the induction antenna that can be connected to the detection channel.

[0055] It should be noted that the judgment logic for determining the M sensing antennas and detection parameters corresponding to each detection channel based on the working status of N sensing antennas requires prioritizing performance, that is, ensuring a suitable sensing distance. Under the premise of satisfying the sensing distance, the corresponding equivalent sensing range should be minimized as much as possible to reduce false triggering.

[0056] S220. Indicate the detection parameters corresponding to each detection channel to the specific absorption rate sensor, and instruct the connection circuit unit to connect the switching circuit between the M sensing antennas.

[0057] Specifically, the indicator connection circuit unit can connect the switching circuits between the M induction antennas by sending a closing indicator signal to the switching circuits between the M induction antennas respectively.

[0058] After being connected, the M sensing antennas are connected in series. The sensing area corresponding to this detection channel is the equivalent sensing area of ​​the M sensing antennas connected in series, which can be the sum of the sensing areas of each of the M sensing antennas.

[0059] S230. The specific absorption rate of the L detection channels is detected by the specific absorption rate sensor according to the detection parameters corresponding to each detection channel.

[0060] The SAR sensor can perform SAR detection on M sensing antennas through each detection channel based on the detection parameters corresponding to each detection channel, and obtain the SAR detection result.

[0061] After step S230, the method further includes:

[0062] The radiated power of the induction antennas corresponding to the L detection channels is adjusted based on the detection results of the specific absorption rate of the L detection channels.

[0063] SAR sensors can also determine the distance between the sensing antenna and a human body based on detection parameters. When the distance is less than a relevant threshold, a sensor-down SAR scheme is invoked to reduce the radiated power of the sensing antenna, for example, by sending a power reduction adjustment instruction to the sensing antenna. Correspondingly, when the distance to the human body is determined to have recovered to above the relevant threshold, a corresponding power recovery scheme is invoked to restore the radiated power of the sensing antenna.

[0064] Optionally, if the connection circuit unit further includes a switching circuit between the SAR sensor and the N sensing antennas, then step S220, which instructs the connection circuit unit to turn on the switching circuit between the M sensing antennas, includes: instructing the connection circuit unit to turn on the switching circuit between the M sensing antennas, and turning on the SAR sensor and the corresponding M sensing antennas to form a detection channel.

[0065] Let's take an electronic device with two sensing antennas and a SAR sensor with two detection channels as an example to illustrate this. Figure 3 As shown, the electronic device 100 includes a first sensing antenna 21 and a second sensing antenna 22. The SAR sensor 10 has a first detection channel 111 and a second detection channel 112. The first detection channel 111 is connected to the first sensing antenna 21 through a connection circuit unit 30, and the second detection channel 112 is connected to the second sensing antenna 22 through the connection circuit unit 30. The connection circuit unit 30 also includes a first switching circuit 31 between the first sensing antenna 21 and the second sensing antenna 22.

[0066] SAR sensor 10 can correspond to two sensor states:

[0067] 1. In the first sensor state, the first switching circuit 31 is open, and the first detection channel 111 and the second detection channel 112 are operating respectively. The SAR sensor performs SAR detection on the first sensing antenna 21 through the first detection channel 111 and on the second sensing antenna 22 through the second detection channel 112. At this time, the sensing distance corresponding to the first detection channel is L. 1ON The sensing distance corresponding to the second detection channel is L 2ON ;

[0068] 2. In the second sensor state, the first switching circuit 31 is turned on, and either the first detection channel 111 or the second detection channel 112 is operational. For example, taking the first detection channel 111 as the example, the SAR sensor performs SAR detection on the first sensing antenna 21 and the second sensing antenna 22 in series through the first detection channel 111. At this time, the sensing distance corresponding to the first detection channel is L. 1OFF .

[0069] Since the sensing area corresponding to each detection channel is relatively smaller in the first sensor state compared to the second sensor state, the corresponding sensing distance is shorter, i.e., L 1OFF Greater than L 1ON and L 2ON .

[0070] The operating states of the N sensing antennas can include single-shot state or concurrent state. The single-shot state is used to indicate that the first sensing antenna 21 and the second sensing antenna 22 work at different time periods, while the concurrent state is used to indicate that the first sensing antenna 21 and the second sensing antenna 22 work simultaneously.

[0071] The specific workflow of electronic devices can be as follows: Figure 4 As shown:

[0072] A1. The inductive antenna of the electronic device begins to work;

[0073] A2. Based on the working status of the first sensing antenna 21 and the second sensing antenna 22, determine whether it is a concurrent state. If it is not a concurrent state, proceed to step A3; if it is a concurrent state, proceed to step A4.

[0074] A3. The instruction connection circuit unit 30 disconnects the first switching circuit 31 and instructs the SAR sensor 10 on the detection parameters of the first detection channel 111 and the second detection channel 112. For example, it instructs the SAR sensor 10 to call the detection parameters in the first sensor state. The sensing distances corresponding to the first detection channel 111 and the second detection channel 112 are L and L, respectively. 1ON and L 2ON ;

[0075] A4. Instruct the connection circuit unit 30 to connect the first switch circuit 31 and instruct the SAR sensor 10 to the detection parameters of the first detection channel 111, for example, instruct the SAR sensor 10 to call the detection parameters in the second sensor state.

[0076] like Figure 5 As shown, in concurrent mode, the sensing range corresponding to the first sensing antenna 21 and the second sensing antenna 22 is region 41, and in single-shot mode, the sensing range corresponding to the first sensing antenna 21 and the second sensing antenna 22 is region 42. In single-shot mode, the closer sensing distance does not affect antenna performance, and the reduced sensing range also reduces the hand-held trigger area, thus reducing the range and probability of false triggering during use and improving user experience. In concurrent mode, the longer sensing distance can reduce power derating in scenarios where the sensor is not triggered, improving antenna performance in concurrent mode.

[0077] As can be seen from the technical solutions provided by the above embodiments of the present invention, the embodiments of the present invention determine L detection channels based on the operating states of N sensing antennas, and M sensing antennas and detection parameters corresponding to each detection channel, instruct the specific absorption rate sensor to indicate the detection parameters corresponding to each detection channel, and instruct the connection circuit unit to connect the switching circuit between the M sensing antennas; the specific absorption rate sensor performs specific absorption rate detection on the L detection channels according to the detection parameters corresponding to each detection channel. Through the embodiments of the present invention, the specific absorption rate detection of the sensing antenna by the SAR sensor can match the actual operating state of the sensing antenna, and the sensing distance obtained based on the specific absorption rate detection result can meet the different sensing distance requirements of different application scenarios, avoiding the need to call the sensor's SAR reduction scheme to reduce the probability of false triggering of radiation power.

[0078] Based on the above embodiments, in one implementation, each detection channel corresponds to a sensing antenna group and is connected to the corresponding sensing antenna group through a connection circuit unit. The connection circuit unit includes a switching circuit between each sensing antenna in each sensing antenna group.

[0079] The connection circuit unit may further include connection circuits between each detection channel and the corresponding inductive antenna group. In one embodiment, the SAR sensor can be fixedly connected to one inductive antenna in the corresponding inductive antenna group through each detection channel. In another embodiment, the connection circuit unit may further include a switching circuit between the SAR sensor and the corresponding inductive antenna group in each detection channel, wherein the connection circuit unit determines to switch the circuit lines to form each detection channel based on received indication information.

[0080] For simplicity, the following embodiments will use a single sensing antenna that is fixedly connected to the corresponding sensing antenna group through each detection channel as an example.

[0081] Step S210 includes:

[0082] The M induction antennas and detection parameters corresponding to each detection channel are determined based on the working status of the corresponding induction antenna group. The M induction antennas are the induction antennas in the corresponding induction antenna group.

[0083] Optionally, the operating states of the inductive antenna array include at least one of the following:

[0084] The operating status of each induction antenna in the induction antenna group;

[0085] Location of antenna hotspots;

[0086] The connection relationship between each detection channel and the induction antenna in the induction antenna group.

[0087] Let's take an electronic device with four sensing antennas and a SAR sensor with two detection channels as an example. Figure 6 As shown, the electronic device includes a first sensing antenna 21, a second sensing antenna 22, a third sensing antenna 23, and a fourth sensing antenna 24. The SAR sensor 10 has a first detection channel 111 and a second detection channel 112. The first sensing antenna group corresponding to the first detection channel 111 includes the first sensing antenna 21 and the second sensing antenna 22. The first detection channel 111 is connected to the first sensing antenna 21 through a connection circuit unit 30. The second sensing antenna group corresponding to the second detection channel 112 includes the third sensing antenna 23 and the fourth sensing antenna 24. The second detection channel 112 is connected to the fourth sensing antenna 24 through the connection circuit unit 30. The connection circuit unit 30 also includes a first switching circuit 31 between the first sensing antenna 21 and the second sensing antenna 22, and a second switching circuit 32 between the third sensing antenna 23 and the fourth sensing antenna 24.

[0088] SAR sensor 10 has two sensor states for each of the first detection channel 111 and the second detection channel 112:

[0089] 1. First sensor state: For the first detection channel 111, the first switching circuit 31 is open, and the SAR sensor performs SAR detection on the first sensing antenna 21 through the first detection channel 111. The corresponding sensing distance is L. 1ON For the second detection channel 112, the second switching circuit 32 is disconnected, and the SAR sensor performs SAR detection on the fourth sensing antenna 24 through the second detection channel 112, with a corresponding sensing distance of L. 2ON ;

[0090] 2. Second sensor state: For the first detection channel 111, the first switching circuit 31 is turned on, and the SAR sensor performs SAR detection on the first sensing antenna 21 and the second sensing antenna 22 through the first detection channel 111. The corresponding sensing distance is L. 1OFF For the second detection channel 112, the second switching circuit 32 is turned on, and the SAR sensor performs SAR detection on the third sensing antenna 23 and the fourth sensing antenna 24 through the second detection channel 112, with a corresponding sensing distance of L. 2OFF .

[0091] The sensor state corresponding to each detection channel is determined based on the working state of each induction antenna in each induction antenna group, such as single-transmission state or concurrent state, and the connection relationship between each detection channel and the induction antenna in the induction antenna group. That is, the M induction antennas and detection parameters corresponding to each detection channel are determined.

[0092] The workflow of electronic devices can be as follows: Figure 7 As shown:

[0093] B1. The inductive antenna of the electronic device begins to operate;

[0094] B2. For the first detection channel 111, determine whether it is in a concurrent state based on the working status of the first sensing antenna 21 and the second sensing antenna 22 in the first sensing antenna group. If it is not in a concurrent state, proceed to step B3; if it is in a concurrent state, proceed to step B5. For the second detection channel, determine whether it is in a concurrent state based on the working status of the third sensing antenna 23 and the fourth sensing antenna 24 in the second sensing antenna group. If it is not in a concurrent state, proceed to step B3; if it is in a concurrent state, proceed to step B5.

[0095] B3. For the first detection channel 111, determine whether the working one is the second sensing antenna 22 that is not directly connected to the first detection channel 111. If not, proceed to step B4; if yes, proceed to step B5. For the second detection channel 112, determine whether the working one is the third sensing antenna 23 that is not directly connected to the second detection channel 112. If not, proceed to step B4; if yes, proceed to step B5.

[0096] B4. For the first detection channel 111, the first switching circuit 31 is disconnected, and the detection parameters of the first detection channel 111 are indicated to the SAR sensor 10. For example, the SAR sensor 10 can be instructed to call the detection parameters of the first detection channel 111 in the first sensor state. The sensing distance corresponding to the first detection channel 111 is L. 1ONFor the second detection channel 112, the second switching circuit 32 is disconnected, and the detection parameters of the second detection channel 112 are indicated to the SAR sensor 10. For example, the SAR sensor 10 can be instructed to call the detection parameters of the second detection channel 112 in the first sensor state. The sensing distance corresponding to the second detection channel 112 is L. 2ON ;

[0097] B5. For the first detection channel 111, the first switching circuit 31 is connected, and the detection parameters of the first detection channel 111 are indicated to the SAR sensor 10. For example, the SAR sensor 10 can be instructed to call the detection parameters of the first detection channel 111 in the second sensor state. The sensing distance corresponding to the first detection channel 111 is L. 1OFF For the second detection channel 112, the second switching circuit 32 is connected, and the detection parameters of the second detection channel 112 are indicated to the SAR sensor 10. For example, the SAR sensor 10 can be instructed to call the detection parameters of the second detection channel 112 in the second sensor state. The sensing distance corresponding to the second detection channel 112 is L. 2OFF .

[0098] In concurrent operation, the sensing distances corresponding to the first detection channel 111 and the second detection channel 112 are L. 1OF and L 2OFF It has a longer sensing distance, thus meeting the need for a longer sensing distance.

[0099] In single-shot mode, if the second sensing antenna 22 or the third sensing antenna 23 is operating, since the second sensing antenna 22 is not directly connected to the first detection channel 111, the first switching circuit 31 needs to be activated to achieve the coverage of the SAR sensor 10 through the first sensing antenna 21 connected to the first detection channel 111. Correspondingly, since the third sensing antenna 24 is not directly connected to the second detection channel 112, the second switching circuit 32 needs to be activated to achieve the coverage of the SAR sensor 10 through the fourth sensing antenna 24 connected to the second detection channel 112. At this time, although the corresponding sensing L... 1OF and L 2OFF It may be greater than the actual demand, but it still offers benefits compared to not using the first sensing antenna 21 and the fourth sensing antenna 24.

[0100] In single-shot mode, if either the first sensing antenna 21 or the fourth sensing antenna 24 is operating, the sensing distance is L. 1ON and L 2ON The sensing distance is relatively short, which reduces the range and probability of false triggering during use.

[0101] As can be seen from the above embodiments, the working state of the induction antenna group can also include the location of the antenna hotspot. The M induction antennas and detection parameters corresponding to each detection channel can be determined based on the working state of each induction antenna in the induction antenna group and the location of the antenna hotspot.

[0102] like Figure 8 As shown, the first sensing antenna group corresponding to the first detection channel 111 includes the first sensing antenna 21 and the second sensing antenna 22 as an example for illustration.

[0103] SAR sensor 10 includes two sensor states for the first detection channel as described above: a first sensor state and a second sensor state, corresponding to two sensing distances L, respectively. 1ON and L 1OFF .

[0104] The workflow of electronic devices can be as follows: Figure 9 As shown:

[0105] C1. The induction antenna of the electronic device begins to work;

[0106] C2. Based on the working status of the first induction antenna 21 and the second induction antenna 22 in the first induction antenna group, determine whether it is a concurrent state. If it is not a concurrent state, proceed to step C3; if it is a concurrent state, proceed to step C5.

[0107] C3. Determine whether the location of the antenna hotspot is within the range of the second induction antenna 22. If not, proceed to step C4; if yes, proceed to step C5.

[0108] C4. Instructs the first switching circuit 31 to be disconnected and instructs the SAR sensor 10 to indicate the detection parameters of the first detection channel 111. For example, it can instruct the SAR sensor 10 to call the detection parameters of the first detection channel 111 in the first sensor state. The sensing distance corresponding to the first detection channel 111 is L. 1ON ;

[0109] C5. Indicates connection to the first switching circuit 31 and instructs the SAR sensor 10 to indicate the detection parameters of the first detection channel 111. For example, it can instruct the SAR sensor 10 to call the detection parameters of the first detection channel 111 in the second sensor state, where the sensing distance corresponding to the first detection channel 111 is L. 1OFF .

[0110] It should be noted that the judgment logic for determining the M sensing antennas and detection parameters corresponding to each detection channel based on the working status of the corresponding sensing antenna group is as follows: Prioritize ensuring the sensing distance and antenna hotspot coverage, meeting appropriate sensing distance requirements, and ensuring that the antenna hotspot is within the coverage area of ​​the SAR sensor. Under the premise of meeting the sensing distance and antenna hotspot coverage requirements, minimize the sensing range as much as possible to reduce false triggering.

[0111] In concurrent operation, the sensing distance of the first detection channel 111 is L. 1OFF It has a longer sensing distance, which can meet the needs of longer sensing distance and antenna hotspots.

[0112] In single-shot mode, if the location of the antenna hotspot is within the range of the second induction antenna 22 for either the first or second induction antenna 21, then... Figure 10 As shown, at this time, the first switch circuit 31 needs to be turned on, and the second induction antenna 22 is used to meet the coverage of the antenna hotspot.

[0113] In single-shot mode, if the location of the antenna hotspot is within the range of the first induction antenna 21 or the second induction antenna 22, such as... Figure 11 As shown, at this time, disconnecting the first switch circuit 31 can also satisfy the coverage of the antenna hotspot, and the sensing distance of the first detection channel 111 is L. 1ON The sensing distance is shorter, the sensing range is reduced, and the sensing range and probability of accidental triggering during use are also reduced accordingly.

[0114] As can be seen from the technical solutions provided by the above embodiments of the present invention, each detection channel corresponds to an inductive antenna group, and each detection channel is connected to the corresponding inductive antenna group through a connection circuit unit. The connection circuit unit includes a switching circuit between each inductive antenna in each inductive antenna group. Through the embodiments of the present invention, the SAR sensor can be adapted to the actual working state of the inductive antenna, meeting the different requirements for sensing distance in different application scenarios, avoiding the false trigger probability of the sensor reducing the SAR scheme, and increasing the number of antennas that the SAR sensor can cover by reusing additional inductive antennas in a series manner.

[0115] The antenna specific absorption rate detection method provided in this application can be executed by an antenna specific absorption rate detection device. This application uses an antenna specific absorption rate detection device executing the antenna specific absorption rate detection method as an example to illustrate the antenna specific absorption rate detection device provided in this application.

[0116] The antenna specific absorption rate detection device includes a specific absorption rate sensor, N inductive antennas, and a connection circuit unit. The specific absorption rate sensor includes L detection channels, and each detection channel is connected to the N inductive antennas through the connection circuit unit. The connection circuit unit includes a switching circuit between the N inductive antennas.

[0117] like Figure 12 As shown, the antenna specific absorption rate detection device includes an execution module 1201 and a transmission module 1202.

[0118] The execution module 1201 is used to determine L detection channels, M corresponding sensing antennas, and detection parameters for each detection channel based on the operating status of the N sensing antennas; the transmission module 1202 is used to indicate the detection parameters corresponding to each detection channel to the specific absorption rate sensor, and to instruct the connection circuit unit to connect the switching circuit between the M sensing antennas; the execution module 1201 is also used to perform specific absorption rate detection on the L detection channels through the specific absorption rate sensor based on the detection parameters corresponding to each detection channel; wherein, N is a positive integer greater than 1, M is a positive integer less than or equal to N, and L is a positive integer.

[0119] Optionally, the connection circuit unit further includes a switching circuit between each detection channel and the N sensing antennas, and the execution module 1201 is used to instruct the connection circuit unit to turn on the switching circuit between the M sensing antennas, and to turn on each detection channel and the corresponding M sensing antennas.

[0120] Optionally, the execution module 1201 is further configured to adjust the radiated power of the induction antennas corresponding to the L detection channels based on the detection results of the specific absorption rate detection of the L detection channels.

[0121] As can be seen from the technical solutions provided by the above embodiments of the present invention, the embodiments of the present invention determine the M sensing antennas and detection parameters corresponding to each detection channel according to the working state of the N sensing antennas, indicate the detection parameters corresponding to each detection channel to the specific absorption rate sensor, and instruct the connection circuit unit to connect the switching circuit between the M sensing antennas. Through the embodiments of the present invention, the SAR sensor can match the actual working state of the sensing antennas, and avoid the false triggering probability of the sensor's SAR reduction scheme in different application scenarios with different sensing distance requirements.

[0122] Based on the above embodiments, optionally, each detection channel corresponds to an induction antenna group, and the connection circuit unit includes a switching circuit between each induction antenna in each induction antenna group. The execution module 1201 is used to determine the M induction antennas and detection parameters corresponding to each detection channel according to the working state of the corresponding induction antenna group. The M induction antennas are the induction antennas in the corresponding induction antenna group.

[0123] Optionally, the operating states of the inductive antenna array include at least one of the following:

[0124] The operating status of each induction antenna in the induction antenna group;

[0125] Location of antenna hotspots;

[0126] The connection relationship between each detection channel and the induction antenna in the induction antenna group.

[0127] Optionally, the operating states of each inductive antenna in the inductive antenna group include: single-transmission state and concurrent state.

[0128] As can be seen from the technical solutions provided by the above embodiments of the present invention, each detection channel corresponds to an inductive antenna group, and each detection channel is connected to the corresponding inductive antenna group through a connection circuit unit. The connection circuit unit includes a switching circuit between each inductive antenna in each inductive antenna group. Through the embodiments of the present invention, the SAR sensor can be adapted to the actual working state of the inductive antenna, meeting the different requirements for sensing distance in different application scenarios, avoiding the false trigger probability of the sensor reducing SAR scheme, and increasing the number of antennas that the SAR sensor can cover by reusing additional inductive antennas in a series manner.

[0129] The antenna specific absorption rate detection device in this application embodiment can be an electronic device or a component within an electronic device, such as an integrated circuit or a chip. The electronic device can be a terminal or other devices besides a terminal. For example, the electronic device can be a mobile phone, tablet computer, laptop computer, PDA, in-vehicle electronic device, mobile internet device (MID), augmented reality (AR) / virtual reality (VR) device, robot, wearable device, ultra-mobile personal computer (UMPC), netbook, or personal digital assistant (PDA), etc. It can also be a server, network attached storage (NAS), personal computer (PC), television (TV), ATM, or self-service machine, etc. This application embodiment does not specifically limit the specific type of device.

[0130] The antenna specific absorption rate detection device in this application embodiment can be a device with an operating system. This operating system can be Android, iOS, or other possible operating systems; this application embodiment does not specifically limit it.

[0131] The antenna specific absorption rate detection device provided in this application embodiment can achieve... Figures 1 to 11 The various processes implemented in the method implementation examples will not be described again here to avoid repetition.

[0132] Optionally, such as Figure 13 As shown, this application embodiment also provides an electronic device 1300, including a processor 1301 and a memory 1302. The memory 1302 stores a program or instructions that can run on the processor 1301. When the program or instructions are executed by the processor 1301, they implement the various steps of the above-described antenna specific absorption rate detection method embodiment and can achieve the same technical effect. To avoid repetition, they will not be described again here.

[0133] It should be noted that the electronic devices in the embodiments of this application include the mobile electronic devices and non-mobile electronic devices described above.

[0134] Figure 14 A schematic diagram of the hardware structure of an electronic device to implement an embodiment of this application.

[0135] The electronic device 1400 includes, but is not limited to, components such as: radio frequency unit 1401, network module 1402, audio output unit 1403, input unit 1404, sensor 1405, display unit 1406, user input unit 1407, interface unit 1408, memory 1409, and processor 1410.

[0136] Those skilled in the art will understand that the electronic device 1400 may also include a power supply (such as a battery) for supplying power to various components. The power supply may be logically connected to the processor 1410 through a power management system, thereby enabling functions such as managing charging, discharging, and power consumption through the power management system. Figure 14 The electronic device structure shown does not constitute a limitation on the electronic device. The electronic device may include more or fewer components than shown, or combine certain components, or have different component arrangements, which will not be elaborated here.

[0137] The electronic device 1400 includes a specific absorption rate sensor, N sensing antennas, and a connection circuit unit. The specific absorption rate sensor includes L detection channels, and each detection channel is connected to the N sensing antennas through the connection circuit unit. The connection circuit unit includes a switching circuit between the N sensing antennas.

[0138] The processor 1410 is configured to determine L detection channels, M corresponding sensing antennas, and detection parameters for each detection channel based on the operating states of the N sensing antennas; to instruct the specific absorption rate sensor of the detection parameters corresponding to each detection channel, and to instruct the connection circuit unit to connect the switching circuit between the M sensing antennas; and to perform specific absorption rate detection on the L detection channels using the specific absorption rate sensor based on the detection parameters corresponding to each detection channel; wherein, N is a positive integer greater than 1, M is a positive integer less than or equal to N, and L is a positive integer.

[0139] Optionally, the connection circuit unit further includes a switching circuit between each detection channel and the N sensing antennas. The processor 1410 is used to instruct the connection circuit unit to turn on the switching circuit between the M sensing antennas and to turn on each detection channel and the corresponding M sensing antennas.

[0140] Optionally, the processor 1410 is further configured to adjust the radiated power of the N induction antennas corresponding to the L detection channels based on the detection results of the specific absorption rate detection of the L detection channels.

[0141] The embodiments of the present invention enable the SAR sensor to match the actual working state of the sensing antenna, and avoid the false triggering probability of the sensor's SAR reduction scheme in different application scenarios with different requirements for sensing distance.

[0142] Based on the above embodiments, optionally, each detection channel corresponds to an induction antenna group, the connection circuit unit includes a switching circuit between each induction antenna in each induction antenna group, and the processor 1410 is used to determine the M induction antennas and detection parameters corresponding to each detection channel according to the working state of the corresponding induction antenna group, wherein the M induction antennas are the induction antennas in the corresponding induction antenna group.

[0143] Optionally, the operating states of the inductive antenna array include at least one of the following:

[0144] The operating status of each induction antenna in the induction antenna group;

[0145] Location of antenna hotspots;

[0146] The connection relationship between each detection channel and the induction antenna in the induction antenna group.

[0147] Optionally, the operating states of each inductive antenna in the inductive antenna group include: single-transmission state and concurrent state.

[0148] The embodiments of the present invention enable the SAR sensor to match the actual working state of the sensing antenna, meet the different requirements of sensing distance in different application scenarios, avoid the false trigger probability of the sensor's SAR reduction scheme, and increase the number of antennas that the SAR sensor can cover by reusing additional sensing antennas in a series manner.

[0149] It should be understood that, in this embodiment, the input unit 1404 may include a graphics processing unit (GPU) 14041 and a microphone 14042. The GPU 14041 processes image data of still images or videos obtained by an image capture device (such as a camera) in video capture mode or image capture mode. The display unit 1406 may include a display panel 14061, which may be configured in the form of a liquid crystal display, an organic light-emitting diode, or the like. The user input unit 1407 includes at least one of a touch panel 14071 and other input devices 14072. The touch panel 14071 is also called a touch screen. The touch panel 14071 may include a touch detection device and a touch controller. Other input devices 14072 may include, but are not limited to, physical keyboards, function keys (such as volume control buttons, power buttons, etc.), trackballs, mice, and joysticks, which will not be described in detail here.

[0150] The memory 1409 can be used to store software programs and various data. The memory 1409 may primarily include a first storage area for storing programs or instructions and a second storage area for storing data. The first storage area may store the operating system, application programs or instructions required for at least one function (such as sound playback, image playback, etc.). Furthermore, the memory 1409 may include volatile memory or non-volatile memory, or both. The non-volatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. Volatile memory can be random access memory (RAM), static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct memory bus RAM (DRRAM). The memory 1409 in this embodiment includes, but is not limited to, these and any other suitable types of memory.

[0151] Processor 1410 may include one or more processing units; optionally, processor 1410 integrates an application processor and a modem processor, wherein the application processor mainly handles operations involving the operating system, user interface, and applications, and the modem processor mainly handles wireless communication signals, such as a baseband processor. It is understood that the aforementioned modem processor may also not be integrated into processor 1410.

[0152] This application also provides a readable storage medium storing a program or instructions. When the program or instructions are executed by a processor, they implement the various processes of the above-described antenna specific absorption rate detection method embodiments and achieve the same technical effect. To avoid repetition, they will not be described again here.

[0153] The processor is the processor in the electronic device described in the above embodiments. The readable storage medium includes computer-readable storage media, such as computer read-only memory (ROM), random access memory (RAM), magnetic disk, or optical disk.

[0154] This application embodiment also provides a chip, which includes a processor and a communication interface. The communication interface and the processor are coupled. The processor is used to run programs or instructions to implement the various processes of the above-described antenna specific absorption rate detection method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0155] It should be understood that the chip mentioned in the embodiments of this application may also be referred to as a system-on-a-chip, system chip, chip system, or system-on-a-chip, etc.

[0156] This application provides a computer program product, which is stored in a storage medium and executed by at least one processor to implement the various processes of the antenna specific absorption rate detection method embodiment described above, and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0157] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0158] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, can be embodied in the form of a computer software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) and includes several instructions to cause a terminal (which may be a mobile phone, computer, server, or network device, etc.) to execute the methods described in the various embodiments of this application.

[0159] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A method for detecting the specific absorption rate of an antenna, characterized in that, The method is applied to an electronic device, which includes a specific absorption rate sensor, N inductive antennas, and a connection circuit unit. The specific absorption rate sensor is connected to the N inductive antennas through the connection circuit unit, and the connection circuit unit includes a switching circuit between the N inductive antennas. Based on the operating status of the N sensing antennas, L detection channels are determined, along with M sensing antennas and detection parameters corresponding to each detection channel; Indicate the detection parameters corresponding to each detection channel to the specific absorption rate sensor, and instruct the connection circuit unit to connect the switching circuit between the M sensing antennas; The specific absorption rate sensor performs specific absorption rate detection on the L detection channels according to the detection parameters corresponding to each detection channel. Wherein, N is a positive integer greater than 1, M is a positive integer less than or equal to N, and L is a positive integer; Each detection channel corresponds to an inductive antenna group. The connection circuit unit includes a switching circuit between each inductive antenna in each inductive antenna group. Determining the M inductive antennas and detection parameters corresponding to each detection channel based on the operating states of the N inductive antennas includes: The working status of the corresponding inductive antenna group determines the M inductive antennas and detection parameters corresponding to each detection channel, wherein the M inductive antennas are the inductive antennas in the corresponding inductive antenna group; The operating states of the inductive antenna array include at least one of the following: The frequency band corresponding to the operation of each induction antenna in the induction antenna group; The beam direction of each induction antenna in the induction antenna group; Location of the antenna hotspot.

2. The method according to claim 1, characterized in that, The connection circuit unit further includes a switching circuit between each detection channel and the N sensing antennas, and the switching circuit that instructs the connection circuit unit to connect the M sensing antennas includes: The connection circuit unit is instructed to connect the switching circuit between the M sensing antennas and to connect each detection channel and the corresponding M sensing antennas.

3. The method according to any one of claims 1-2, characterized in that, The method further includes: The radiated power of the induction antennas corresponding to the L detection channels is adjusted based on the detection results of the specific absorption rate of the L detection channels.

4. An antenna specific absorption rate detection device, characterized in that, The antenna specific absorption rate detection device includes a specific absorption rate sensor, N inductive antennas, and a connection circuit unit. The specific absorption rate sensor is connected to the N inductive antennas through the connection circuit unit. The connection circuit unit includes a switching circuit between the N inductive antennas, comprising: The execution module is used to determine L detection channels, M sensing antennas and detection parameters corresponding to each detection channel, based on the working status of the N sensing antennas. The transmission module is used to indicate the detection parameters corresponding to each detection channel to the specific absorption rate sensor, and to instruct the connection circuit unit to connect the switching circuit between the M sensing antennas. The execution module is also used to perform specific absorption rate detection on the L detection channels using the specific absorption rate sensor according to the detection parameters corresponding to each detection channel; Wherein, N is a positive integer greater than 1, M is a positive integer less than or equal to N, and L is a positive integer; Each detection channel corresponds to an induction antenna group. The connection circuit unit includes a switching circuit between each induction antenna in each induction antenna group. The execution module is used to determine the M induction antennas and detection parameters corresponding to each detection channel according to the working state of the corresponding induction antenna group. The M induction antennas are the induction antennas in the corresponding induction antenna group. The operating states of the inductive antenna array include at least one of the following: The frequency band corresponding to the operation of each induction antenna in the induction antenna group; The beam direction of each induction antenna in the induction antenna group; Location of the antenna hotspot.

5. The apparatus according to claim 4, characterized in that, The connection circuit unit further includes a switching circuit between each detection channel and the N sensing antennas. The execution module is used to instruct the connection circuit unit to turn on the switching circuit between the M sensing antennas and to turn on each detection channel and the corresponding M sensing antennas.

6. The apparatus according to any one of claims 4-5, characterized in that, The execution module is also used to adjust the radiated power of the induction antennas corresponding to the L detection channels based on the detection results of the specific absorption rate detection of the L detection channels.

7. An electronic device, characterized in that, It includes a processor and a memory, the memory storing a program or instructions that can run on the processor, the program or instructions being executed by the processor to implement the steps of the antenna specific absorption rate detection method as described in any one of claims 1-3.

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