CN113055039A

CN113055039A - Electronic device, control method and control device

Info

Publication number: CN113055039A
Application number: CN202110262772.2A
Authority: CN
Inventors: 余健洪; 丁云龙
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2021-03-10
Filing date: 2021-03-10
Publication date: 2021-06-29
Anticipated expiration: 2041-03-10
Also published as: CN113055039B

Abstract

The application discloses electronic equipment, a control method and a control device, which belong to the technical field of electronics and aim to solve the problem that in the prior art, when an object is close to the electronic equipment, the performance of an antenna is reduced due to the reduction of the transmitting power of a transmitting antenna, so that the quality of a communication signal is reduced. Wherein the electronic device comprises: a rear cover, a target side edge of the rear cover being bent toward an inner wall of the rear cover; the NFC antenna is attached to the inner wall of the rear cover and comprises a first circuit board and a second circuit board; the first circuit board is attached to the inner wall at the edge of the target side; two ends of the second circuit board are respectively provided with a feed point; the SAR sensor structure is connected with the NFC antenna; the transmitting antenna is connected with the SAR sensor structure; and the processor is connected with the feed point and is also connected with the SAR sensor structure. The electronic equipment is used for realizing the control method.

Description

Electronic device, control method and control device

Technical Field

The application belongs to the technical field of electronics, and particularly relates to electronic equipment, a control method and a control device.

Background

At present, the electronic equipment adopts a wireless communication technology, the wireless communication technology can generate electromagnetic radiation, and the electromagnetic radiation is too large, so that certain harm can be caused to the health of a human body.

In order to solve the problem, a Specific Absorption Rate (SAR) sensor is added to the electronic device, and a transmitting antenna in the electronic device is used as a detecting antenna of the SAR sensor. The corresponding detection mode is as follows: when the target object is close to the transmitting antenna, the SAR sensor can detect the capacitance change of the transmitting antenna, when the capacitance change exceeds a certain threshold value, the target object is considered to be close to the electronic equipment, and measures for reducing the transmitting power of the transmitting antenna are taken to avoid the harm of electromagnetic radiation generated by the electronic equipment to the target object.

In the above prior art, the target object may be a human body or an object, and when the object approaches the electronic device, the transmission power of the transmitting antenna is reduced, which leads to a reduction in antenna performance and thus a reduction in communication signal quality.

Disclosure of Invention

An object of the embodiments of the present application is to provide an electronic device, which can solve the problem in the prior art that when an object is close to the electronic device, the performance of an antenna is reduced due to the reduction of the transmission power of a transmitting antenna, so that the quality of a communication signal is reduced.

In order to solve the technical problem, the present application is implemented as follows:

in a first aspect, an embodiment of the present application provides an electronic device, including: a rear cover, a target side edge of the rear cover being bent toward an inner wall of the rear cover; the NFC antenna is attached to the inner wall of the rear cover and comprises a first circuit board and a second circuit board; the first circuit board is attached to the inner wall at the edge of the target side; two ends of the second circuit board are respectively provided with a feed point; a SAR sensor structure connected with the NFC antenna; a transmitting antenna connected with the SAR sensor structure, the transmitting antenna being located at an upper edge and/or a lower edge of the electronic device, the edge of the transmitting antenna being perpendicular to the target side edge; the processor is connected with the feed point, the processor is further connected with the SAR sensor structure, and the processor is used for controlling the feed points at the two ends of the second circuit board to be grounded respectively when the SAR sensor structure collects that the capacitance of the transmitting antenna is larger than a first threshold value and determines that the electronic equipment is in a non-NFC scene, so that the SAR sensor structure is connected with the first circuit board.

In a second aspect, an embodiment of the present application provides a control method, which is applied to the electronic device according to the first aspect, and the method includes: acquiring a position relation between a target object and the first circuit board under the condition that the SAR sensor structure acquires that the capacitance of the transmitting antenna is larger than a first threshold value and the electronic equipment is determined to be in a non-NFC scene; controlling the transmitting power of the transmitting antenna to be reduced under the condition that the target object and the first circuit board are in a preset position relation; and under the condition that the target object is not in a preset position relation with the first circuit board, controlling the transmitting power of the transmitting antenna to be kept unchanged.

In a third aspect, an embodiment of the present application provides a control apparatus for implementing the method according to the second aspect, where the apparatus includes: the acquisition module is used for acquiring the position relation between a target object and the first circuit board under the condition that the SAR sensor structure acquires that the capacitance in the transmitting antenna is larger than a first threshold value and the electronic equipment is determined to be in a non-NFC scene; the first control module is used for controlling the transmission power of the transmitting antenna to be reduced under the condition that the target object and the first circuit board are in a preset position relation; and the second control module is used for controlling the transmitting power of the transmitting antenna to be kept unchanged under the condition that the target object and the first circuit board are not in a preset position relation.

In a fourth aspect, embodiments of the present application provide an electronic device, which includes a processor, a memory, and a program or instructions stored on the memory and executable on the processor, where the program or instructions, when executed by the processor, implement the steps of the method according to the second aspect.

In a fifth aspect, embodiments of the present 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 according to the second aspect.

In a sixth aspect, embodiments of the present application provide a chip, where the chip includes a processor and a communication interface, where the communication interface is coupled to the processor, and the processor is configured to execute a program or instructions to implement the method according to the second aspect.

In this way, in the embodiment of the present application, by using the structural feature that the target side edge of the rear cover of the electronic device is in the inward bending state, whether the target object is a human body or an object can be distinguished by obtaining the positional relationship between the first circuit board attached to the target side edge and the contact surface of the target object. In addition, the NFC antenna on the inner wall of the rear cover is utilized, and under the condition that the electronic equipment is in a non-NFC scene, the feed point is grounded, so that other circuit boards except the first circuit board attached to the edge of the side of the target in the NFC antenna are grounded, and the first circuit board is used as a detection antenna of the SAR sensor structure. When the SAR sensor structure acquires that the capacitance change in the transmitting antenna is larger than a first threshold value and indicates that a target object is close to the contact electronic equipment, further judging whether the current situation is an NFC scene or not, and controlling a feed point in the NFC antenna to be grounded under the non-NFC scene situation, so that a first circuit board in the NFC antenna keeps a working state, acquiring data in the first circuit board by the SAR sensor structure, and if the data in the first circuit board indicates that a preset position relation is met between the first circuit board and the target object, considering the target object as a human body, so that the transmitting power of the transmitting antenna is reduced, and the safety of the human body is ensured; and if the data in the first circuit board indicates that the preset position relation between the first circuit board and the target object is not met, the target object is considered as an object, so that the transmitting power of the transmitting antenna is maintained, the performance of the antenna is ensured, and the quality of the communication signal is further ensured.

Drawings

FIG. 1 is a schematic cross-sectional view of an electronic device according to an embodiment of the present application;

FIG. 2 is a diagram illustrating a state of an electronic device according to an embodiment of the present application;

FIG. 3 is a second schematic diagram of a state of the electronic device according to the embodiment of the present application;

fig. 4 is a second schematic cross-sectional view of an electronic device according to an embodiment of the present application;

FIG. 5 is a block diagram of an electronic device of an embodiment of the application;

FIG. 6 is a flow chart of a control method of an embodiment of the present application;

FIG. 7 is a block diagram of a control device according to an embodiment of the present application;

fig. 8 is a hardware configuration diagram of an electronic device according to an embodiment of the present application.

Fig. 9 is a second schematic diagram of a hardware structure of the electronic device according to the embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that embodiments of the application may be practiced in sequences other than those illustrated or described herein, and that the terms "first," "second," and the like are generally used herein in a generic sense and do not limit the number of terms, e.g., the first term can be one or more than one. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.

The following describes the control method provided by the embodiments of the present application in detail through specific embodiments and application scenarios thereof with reference to the accompanying drawings.

Fig. 1 shows a schematic cross-sectional view of an electronic device according to an embodiment of the application, the device comprising:

a rear cover, a target side edge of the rear cover being bent toward an inner wall of the rear cover;

near Field Communication (NFC) antenna, wherein the NFC antenna is attached to the inner wall of the rear cover and comprises a first circuit board 1 and a second circuit board 2; the first circuit board 1 is attached to the inner wall of the edge of the target side; two ends of the second circuit board 2 are respectively provided with a feed point 21;

the SAR sensor structure is connected with the NFC antenna;

the transmitting antenna 3 is connected with the SAR sensor structure, the transmitting antenna 3 is positioned at the upper edge and/or the lower edge of the electronic equipment, and the edge where the transmitting antenna 3 is positioned is vertical to the edge of the target side;

and the processor is connected with the feed point 21, is also connected with the SAR sensor structure, and is used for controlling the feed points 21 at the two ends of the second circuit board 2 to be grounded respectively when the SAR sensor structure acquires that the capacitance of the transmitting antenna 3 is larger than a first threshold value and the electronic equipment is determined to be in a non-NFC scene, so that the SAR sensor structure is connected with the first circuit board 1.

The electronic equipment of the embodiment can judge whether the target object is a human body or an object when the target object is in close contact with the electronic equipment; or, judging whether the electronic equipment is in a handheld state or a static placing state.

If the target object is a human body, the electronic equipment is correspondingly in a handheld state; if the target object is an object, the electronic equipment is correspondingly in a static placing state.

First, the electronic device of the present embodiment is based on the following principle:

on the one hand, referring to fig. 2 and 3, the object side edge of the rear cover 4 of the electronic device is bent toward the inner wall of the rear cover 4 so that the rear cover 4 takes on a circular arc shape, thereby facilitating the human hand to hold. On the other hand, an NFC antenna is tightly attached to the inner wall of the rear cover 4, and the NFC antenna also has an arc shape according to the structural features of the rear cover 4. In this embodiment, with reference to fig. 2, when the target object 5 close to the electronic device is an object, a scene, such as the electronic device is close to a horizontal desktop, and corresponds to the edge of the curved target side of the rear cover 4, an included angle α is formed between the vertical direction (indicated by an arrow) of the NFC antenna and the surface of the object, where α is smaller than 90 °; referring to fig. 3, when the target object 5 close to the electronic device is a human body, and a scene such as the electronic device is held in a hand of a user for answering a call, an angle α is formed between a vertical direction (indicated by an arrow) of the NFC antenna and a surface of a palm of the human body corresponding to a curved target side edge of the rear cover 4, and α is equal to 90 °.

It can be seen that whether the target object 5 is a human body or an object can be distinguished by judging whether an angle value of an included angle α formed between the vertical direction of the NFC antenna and the contact surface of the target object 5 at the edge of the target side corresponding to the bending of the rear cover 4 satisfies 90 °.

Specifically, the judgment conditions are: whether the angle value forming the angle alpha between the vertical direction of the NFC antenna and the contact surface of the target object 5 is equal to 90 deg..

In addition, referring to fig. 2, when the target object 5 that the electronic device approaches is an object, a scene, such as the electronic device that approaches the horizontal desktop, corresponds to the curved target side edge of the rear cover 4, and a distance between the NFC antenna and the object is large; referring to fig. 3, when the target object 5 close to the electronic device is a human body, if the electronic device is held in a hand of a user for answering a call, a distance between the NFC antenna and a palm of the human body is small and almost zero corresponding to a bent edge of the target side of the rear cover 4.

It can be seen that whether the target object 5 is a human body or an object can be distinguished by judging whether the distance between the NFC antenna and the target object 5 at the edge of the curved target side corresponding to the rear cover 4 satisfies a preset distance.

Specifically, the judgment conditions are: whether the distance between the NFC antenna and the target object 5 is smaller than a second threshold.

Wherein the distance between the NFC antenna and the target object 5 may be the distance between the NFC antenna and the contact surface of the target object 5.

Alternatively, whether the target object 5 is a human body or an object is discriminated using any of the above-described determination conditions.

Further, the target object 5 can be distinguished as a human body or an object by using the two judgment conditions, so that the judgment accuracy can be improved by double judgment.

For example, at least one of an angle value at which an included angle α is formed between the vertical direction of the NFC antenna and the contact surface of the target object 5 and a distance between the NFC antenna and the target object 5 satisfying a preset distance may be used as the preset positional relationship, so that the preset positional relationship may be used as a criterion for the determination.

It should be noted that the NFC antenna is used in an NFC scenario. The NFC scene is that when a user takes a bus, the NFC antenna can be close to the card reader, and card reading payment of the electronic bus card is achieved.

Referring to fig. 1, generally, an NFC antenna layout structure is a loop structure.

In the present embodiment, the NFC antenna is divided into a first wiring board 1 and a second wiring board 2. Wherein, the first circuit board 1 is jointed with the inner wall at the edge of the bent target side; the parts except the first circuit board 1 are defined as a second circuit board 2, and two ends of the second circuit board 2 are respectively provided with corresponding feed points 21. In this way, when the feed points 21 at the two ends of the second circuit board 2 are grounded, respectively, in the NFC antenna, only the first circuit board 1 can operate normally, that is, the NFC antenna is changed to the independent first circuit board 1. Thus, the first wiring board 1 and the transmitting antenna 3 each function as a detection antenna of the SAR sensor structure.

If the SAR sensor structure acquires that the capacitance change in the transmitting antenna 3 is larger than a first threshold value, determining that the target object is close to the contact electronic equipment; further, in the case where the NFC antenna is changed to the independent first wiring board 1, the SAR sensor structure collects data in the first wiring board 1.

If based on the data in the first circuit board 1: an included angle alpha formed between the vertical direction of the first circuit board 1 and the surface of the target object is equal to 90 degrees, and/or the distance between the first circuit board 1 and the target object is smaller than a second threshold value, the target object is determined to be a human body, and therefore the transmitting power of the transmitting antenna 3 is reduced, and the safety of the human body is ensured.

If the data in the first circuit board 1 is obtained: an included angle α formed between the vertical direction of the first circuit board 1 and the surface of the target object is not equal to 90 °, or the distance between the first circuit board 1 and the target object is greater than or equal to a second threshold, the target object is determined to be an object, so that the transmission power of the transmitting antenna 3 is maintained, the antenna performance is ensured, and the quality of the communication signal is ensured.

Further, when the SAR sensor structure acquires that the capacitance change in the transmitting antenna 3 is greater than the first threshold value, and it is determined that the target object is close to the contact electronic device, it is first determined whether the current situation is an NFC scenario, and only in the case of a non-NFC scenario, the feed point 21 is controlled to be grounded, thereby ensuring normal use of the NFC function of the electronic device.

It should be noted that, the judgment of the NFC scene may be performed according to whether the target object is an NFC device.

Optionally, in this embodiment, the first circuit board 1 is adopted as the detection antenna, the first circuit board 1 adopts an independent double-layer flexible circuit board (FPC) as the SAR sensor antenna, and the FPC antenna is characterized in that: the method has clear directivity and distance, so that the position relation between the FPC antenna and the target object can be accurately judged.

Optionally, the SAR sensor structure in this embodiment includes a plurality of SAR sensors, and each SAR sensor is correspondingly disposed in one antenna. For example, each transmitting antenna corresponds to one SAR sensor, and each FPC antenna corresponds to one SAR sensor. Each SAR sensor is used for collecting data of the antenna, and each SAR sensor is connected with the processor, so that the processor can perform corresponding processing according to the data collected by each SAR sensor.

Referring to fig. 4, optionally, the number of the first circuit boards 1 is at least one, and when the number of the first circuit boards 1 is one, the first circuit boards are attached to the inner wall at the edge where one side is bent.

Optionally, the target side edge in this embodiment is a side edge with a larger contact area when the user holds the terminal device, so as to improve the accuracy of the determination.

In this way, in the embodiment of the present application, by using the structural feature that the target side edge of the electronic device rear cover 4 is in the inward bending state, whether the target object is a human body or an object can be distinguished by obtaining the positional relationship between the first circuit board 1 attached at the target side edge and the contact surface of the target object. In addition, by using the NFC antenna on the inner wall of the rear cover 4, under the condition that the electronic device is in a non-NFC scene, the feed point 21 is grounded, so that other circuit boards except the first circuit board 1 attached to the edge of the target side in the NFC antenna are grounded, and the first circuit board 1 is used as a detection antenna of the SAR sensor structure. When the SAR sensor structure acquires that the capacitance change in the transmitting antenna 3 is larger than a first threshold value and indicates that a target object is close to the contact electronic device, further judging whether the current situation is an NFC scene or not, and controlling a feed point 21 in the NFC antenna to be grounded under the condition of a non-NFC scene, so that a first circuit board 1 in the NFC antenna keeps a working state, acquiring data in the first circuit board 1 by the SAR sensor structure, and if the data in the first circuit board 1 indicates that a preset position relation is met between the first circuit board 1 and the target object, considering the target object as a human body, thereby reducing the transmitting power of the transmitting antenna 3 and ensuring the safety of the human body; if the data in the first circuit board 1 indicates that the preset position relationship between the first circuit board 1 and the target object is not satisfied, the target object is considered as an object, so that the transmitting power of the transmitting antenna 3 is maintained, the antenna performance is ensured, and the quality of the communication signal is further ensured.

In addition, whether the current scene is an NFC scene is judged, and if the current scene is the NFC scene, the transmitting power of the transmitting antenna 3 is reduced to ensure the safety of a human body; at the same time, the transmit power of the NFC antenna is maintained to ensure normal use of the NFC functionality.

The transmitting antenna 3 is used for realizing communication functions such as conversation, and the NFC antenna is used for realizing communication functions such as card swiping. The present embodiment gives priority to the harm of the transmitting antenna 3 to human body and the quality of its communication signal.

In the electronic device according to another embodiment of the present application, the state of the electronic device may also be acquired based on the interaction between the first circuit board 1 and the target object.

If the electronic equipment is held by a hand of a human body, the electronic equipment is in a shaking state due to artificial shaking factors. If the electronic equipment is placed on a desktop, the artificial shaking factors are eliminated, and the electronic equipment is in a non-shaking state.

Therefore, whether the target object is a human body can be determined in a triple manner by combining the state of the electronic equipment.

Optionally, whether the electronic device shakes can be detected according to gyroscope data in the electronic device, and if the electronic device shakes, the electronic device is in a shaking state.

In this embodiment, the accuracy of determining that the target object is a human body or an object is improved by a triple determination method, so that the transmission power of the transmitting antenna 3 can be accurately reduced or the transmission power of the transmitting antenna 3 can be maintained, and thus, the user safety and the communication quality can be ensured.

Referring to fig. 2 and 3, in the state schematic view of the electronic apparatus according to another embodiment of the present application, two opposite object side edges of the rear cover 4 are respectively bent toward the inner wall of the rear cover 4;

the number of the first circuit boards 1 is two, and the two first circuit boards 1 are respectively attached to the inner walls of the corresponding target side edges.

In this embodiment, according to the habit of holding the electronic device by a hand of a human body and the symmetric structural features of the rear cover 4 of the electronic device, the detection antennas of the SAR sensor structures may be respectively disposed at two opposite target side edges of the rear cover 4, so as to improve the accuracy of determining the target object.

Referring to fig. 1, in a schematic cross-sectional view of an electronic device according to an embodiment of the present application, an NFC antenna includes two first circuit boards 1 and two second circuit boards 2, where the first circuit boards 1 and the second circuit boards 2 are connected in sequence and encircle to form a rectangle;

two ends of each second circuit board 2 are respectively provided with a feed point 21;

the two target side edges are parallel to each other, and a first direction in which the first wiring board 1 extends is parallel to a second direction in which the target side edges extend.

Referring to fig. 1, the NFC antenna is a rectangular antenna. One set of opposite sides is parallel to two opposite target side edges of the rear cover 4, and the other set of opposite sides is parallel to the other two opposite upper and lower edges of the rear cover 4.

Wherein the opposite edges of the rear cover 4 are parallel.

Correspondingly, the circuit board on the opposite side parallel to the target side edge is used as a first circuit board 1 for realizing the NFC function together with a second circuit board 2 in the NFC scene, and detecting the position relation between the circuit board and the target object at the target side edge of the rear cover 4 in the non-NFC scene; the circuit boards on the opposite sides parallel to the other two opposite upper and lower edges are used as the second circuit board 2 to realize the NFC function together with the first circuit board 1 in the NFC scene, and the circuit boards are grounded through the feed point 21 in the non-NFC scene to ensure the independent use of the first circuit board 1.

Optionally, based on the layout of the NFC antenna in this embodiment, four feed points 21 are added to the NFC antenna. Wherein, two ends of each second circuit board 2 are respectively added with a feed point 21.

In this embodiment, four feeding points 21 are added to the NFC antenna by using the layout structure of the NFC antenna. When the NFC function is used, the NFC antenna is normally used. When switching into SAR detection function, four feed points 21 ground connection, and the NFC antenna changes into two slender first circuit boards 1, and two independent first circuit boards 1 hug closely on curved surface back cover 4, and two independent first circuit boards 1 that are equivalent to this moment possess very strong directionality and distancing ability to can act as SAR sensor structure's detection antenna, be used for detecting that the target object that is close to first circuit board 1 is human or object.

Referring to fig. 5, in a block diagram of an electronic device according to another embodiment of the present application, the electronic device further includes:

each feed point 21 of the metal-oxide semiconductor (mos) tube 22 is correspondingly connected with one mos tube 22, and each mos tube 22 is grounded;

and a control circuit 6, wherein the control circuit 6 is connected between the mos tube 22 and the processor 7.

Referring to fig. 5, each feed point 21 is connected to a corresponding mos tube 22, and all mos tubes 22 are connected to the control circuit 6.

The control circuit 6 is used for controlling the mos tube 22 to be switched on and off.

The mos tube 22 is used to achieve that the feed point 21 is grounded or that the feed point 21 is not grounded.

Specifically, in the NFC scenario, the mos tube 22 is disconnected, the feed point 21 is not grounded, and the NFC function is normal. In a non-NFC scene, the mos tube 22 is conducted, the feed point 21 is grounded, and at the moment, the NFC antenna is divided into two independent FPC antennas which are used for detection antennas of the SAR sensor structure.

And the processor 7 is configured to determine whether the current device scene is an NFC scene, and transmit an instruction to the control circuit 6 according to different scenes, so that the control circuit 6 may control the mos tube 22 to be turned on or off.

The processor 7 is the main control processor of the electronic device.

Alternatively, the mos tube 22 may be a conventional mos tube, and the circuit thereof is not described in detail in this embodiment.

In the present embodiment, the mos tube 22 is used to realize grounding or non-grounding of the feed point 21, so the mos tube 22 can be correspondingly connected to each feed point 21, and the mos tubes 22 are all grounded. Further, the mos tube 22 is controlled to be turned on or off by the control circuit 6, so that the feed point 21 can be grounded or ungrounded based on the turning on and off of the mos tube 22. The control circuit 6 is controlled by the processor 7, and the processor 7 can judge that the current equipment is in an NFC scene or a non-NFC scene, so that corresponding instructions are output according to different scenes, and normal use of an NFC function and an SAR detection function is ensured.

Referring to fig. 1, in a cross-sectional schematic view of an electronic device according to an embodiment of the present application, two transmitting antennas 3 are provided, and the two transmitting antennas 3 are respectively and correspondingly located on a top frame and a bottom frame of the electronic device;

the extending directions of the two transmitting antennas 3 are respectively corresponding to the extending directions parallel to the frame;

the top frame is parallel to the bottom frame, and a third direction in which the frame extends is perpendicular to the second direction in which the target-side edge extends.

Referring to fig. 1, the number of the transmitting antennas 3 is two, and the two transmitting antennas 3 are respectively located on the top frame and the bottom frame of the electronic device, that is, the transmitting antennas 3 are respectively two frame antennas on the upper frame and the lower frame of the electronic device. The two frame antennas are parallel to each other and to the top and the bottom of the electronic device. Correspondingly, the bezel antenna and the third direction parallel to the bezel can be represented as the horizontal direction in fig. 1.

On this basis, in the present embodiment, the two opposite object side edges of the back cover 4 are respectively bent toward the inner wall of the back cover 4 so that the two object side edges are parallel and both extend toward the second direction. Wherein the third direction is perpendicular to the second direction. Correspondingly, the second direction may be denoted as a vertical direction in fig. 1.

In this embodiment, the frame antenna of the electronic device is used as the detection antenna of the SAR sensor structure, so that the SAR sensors of the upper and lower frame antennas are started, and the distance between the target object and the electronic device is fed back through the capacitance change acquired by the SAR sensors of the upper and lower frame antennas. When the capacitance collected by the SAR sensors of the upper and lower frame antennas changes to exceed a first threshold value, the target object is considered to be close to and in contact with the electronic equipment. Since the detection area and the detection directivity of the frame antenna are limited, it cannot be further determined whether the target object is in contact from the front direction of the rear cover 4 or in contact from the side direction of the rear cover 4, and thus it cannot be determined whether the target object is a human body or an object. Further, whether the current electronic device is in an NFC scene is determined, and the feed point 21 is controlled to be grounded under the condition that the electronic device is in a non-NFC scene, so that the NFC antenna is changed into two independent FPC antennas. In this way, the FPC antenna is attached to the rear cover 4 and parallel to the two side edges of the electronic device, if a user holds the electronic device, the target object can be judged to be a human body by the fact that the FPC antenna and the palm of the human body meet the preset position relation, and therefore the transmitting power of the frame antenna is reduced, and safety of the human body is guaranteed; on the contrary, if the target object is determined to be the object, the transmitting power of the frame antenna is maintained to ensure the quality of the communication signal.

Fig. 6 is a flowchart illustrating a control method according to another embodiment of the present application, which is applied to the electronic device according to any one of the foregoing embodiments, and includes:

step S1: and acquiring the position relation between the target object and the first circuit board under the condition that the SAR sensor structure acquires that the capacitance of the transmitting antenna is larger than a first threshold value and the electronic equipment is determined to be in a non-NFC scene.

Step S2: and under the condition that the target object and the first circuit board are in a preset position relation, controlling the transmission power of the transmitting antenna to be reduced.

Step S3: and under the condition of non-preset position relation between the target object and the first circuit board, controlling the transmitting power of the transmitting antenna to be kept unchanged.

Optionally, the preset positional relationship satisfies at least any one of:

a contact surface of the target object with the first wiring board, perpendicular to a vertical direction of the first wiring board;

the distance between the target object and the first circuit board is smaller than a second threshold value.

In summary, the present application proposes a hybrid detection scheme in which an electronic structure is matched with a software detection algorithm. In the scheme, the physical characteristics of the hand held by a human body are matched, the structural characteristics of the rear cover of the curved battery of the electronic equipment are utilized, and the NFC antenna is reused as the FPC antenna of the SAR sensor, so that the detection purpose is achieved. The FPC antenna has strong directivity, can well detect the approaching direction, and the shorter the side length is, the shorter the detection distance is, so that the holding posture of a human hand is simulated.

In the control method provided by the embodiment of the present application, the execution main body may be a control device, or a control module in the control device for executing the control method. In the embodiment of the present application, a control device executing a control method is taken as an example, and a control device of the control method provided in the embodiment of the present application is described.

Fig. 7 shows a block diagram of a control device according to another embodiment of the present application, the device comprising:

the acquisition module 10 is configured to acquire a position relationship between the target object and the first circuit board when the SAR sensor structure acquires that the capacitance of the transmitting antenna is greater than a first threshold and it is determined that the electronic device is in a non-NFC scene;

the first control module 20 is configured to control the transmission power of the transmitting antenna to be reduced in a case where a preset position relationship exists between the target object and the first circuit board;

and the second control module 30 is configured to control the transmission power of the transmitting antenna to remain unchanged under the condition that the target object is not in the preset position relationship with the first circuit board.

Optionally, the preset positional relationship satisfies at least any one of:

The control device in the embodiment of the present application may be a device, or may be a component, an integrated circuit, or a chip in a terminal. The device can be mobile electronic equipment or non-mobile electronic equipment. By way of example, the mobile electronic device may be a mobile phone, a tablet computer, a notebook computer, a palm top computer, a vehicle-mounted electronic device, a wearable device, an ultra-mobile personal computer (UMPC), a netbook or a Personal Digital Assistant (PDA), and the like, and the non-mobile electronic device may be a server, a NetworK Attached Storage (NAS), a Personal Computer (PC), a Television (TV), a teller machine or a self-service machine, and the like, and the embodiments of the present application are not particularly limited.

The control device in the embodiment of the present application may be a device having an operating system. The operating system may be an Android (Android) operating system, an ios operating system, or other possible operating systems, and embodiments of the present application are not limited specifically.

The control device provided in the embodiment of the present application can implement each process implemented by the above method embodiment, and is not described here again to avoid repetition.

Optionally, as shown in fig. 8, an electronic device 100 is further provided in this embodiment of the present application, and includes a processor 101, a memory 102, and a program or an instruction stored in the memory 102 and executable on the processor 101, where the program or the instruction is executed by the processor 101 to implement each process of the foregoing control method embodiment, and can achieve the same technical effect, and no further description is provided here to avoid repetition.

It should be noted that the electronic device in the embodiment of the present application includes the mobile electronic device and the non-mobile electronic device described above.

Fig. 9 is a schematic diagram of a hardware structure of an electronic device implementing an embodiment of the present application.

The electronic device 1000 includes, but is not limited to: a radio frequency unit 1001, a network module 1002, an audio output unit 1003, an input unit 1004, a sensor 1005, a display unit 1006, a user input unit 1007, an interface unit 1008, a memory 1009, and a processor 1010.

Those skilled in the art will appreciate that the electronic device 1000 may further comprise a power source (e.g., a battery) for supplying power to various components, and the power source may be logically connected to the processor 1010 through a power management system, so as to implement functions of managing charging, discharging, and power consumption through the power management system. The electronic device structure shown in fig. 9 does not constitute a limitation of the electronic device, and the electronic device may include more or less components than those shown, or combine some components, or arrange different components, and thus, the description is not repeated here.

The processor 1010 is configured to, when the SAR sensor structure of the electronic device 1000 acquires that the capacitance in the transmitting antenna of the electronic device 1000 is greater than a first threshold and determines that the electronic device 1000 is located in a non-NFC scene, obtain a position relationship between a target object and a first circuit board of the electronic device 1000; controlling the transmitting power of the transmitting antenna to be reduced under the condition that the target object and the first circuit board are in a preset position relation; and under the condition that the target object is not in a preset position relation with the first circuit board, controlling the transmitting power of the transmitting antenna to be kept unchanged.

Optionally, the preset positional relationship satisfies at least any one of:

It should be understood that in the embodiment of the present application, the input Unit 1004 may include a Graphics Processing Unit (GPU) 10041 and a microphone 10042, and the Graphics Processing Unit 10041 processes image data of still pictures or videos obtained by an image capturing device (such as a camera) in a video capturing mode or an image capturing mode. The display unit 1006 may include a display panel 10061, and the display panel 10061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 1007 includes a touch panel 10071 and other input devices 10072. The touch panel 10071 is also referred to as a touch screen. The touch panel 10071 may include two parts, a touch detection device and a touch controller. Other input devices 10072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which are not described in detail herein. The memory 1009 may be used to store software programs as well as various data, including but not limited to application programs and operating systems. Processor 1010 may integrate an application processor that handles primarily operating systems, user interfaces, applications, etc. and a modem processor that handles primarily wireless communications. It will be appreciated that the modem processor described above may not be integrated into processor 1010.

The embodiment of the present application further provides a readable storage medium, where a program or an instruction is stored on the readable storage medium, and when the program or the instruction is executed by a processor, the program or the instruction implements each process of the control method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here.

The processor is the processor in the electronic device described in the above embodiment. The readable storage medium includes a computer readable storage medium, such as a Read-only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and the like.

The embodiment of the present application further provides a chip, where the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to execute a program or an instruction to implement each process of the above control method embodiment, and can achieve the same technical effect, and for avoiding repetition, the details are not repeated here.

It should be understood that the chips mentioned in the embodiments of the present application may also be referred to as system-on-chip, system-on-chip or system-on-chip, etc.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Further, it should be noted that the scope of the methods and apparatus of the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order based on the functions involved, e.g., the methods described may be performed in an order different than that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present application may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present application.

While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. An electronic device, characterized in that the electronic device comprises:

the NFC antenna is attached to the inner wall of the rear cover and comprises a first circuit board and a second circuit board; the first circuit board is attached to the inner wall at the edge of the target side; two ends of the second circuit board are respectively provided with a feed point;

a SAR sensor structure connected with the NFC antenna;

a transmitting antenna connected with the SAR sensor structure, the transmitting antenna being located at an upper edge and/or a lower edge of the electronic device, the edge of the transmitting antenna being perpendicular to the target side edge;

the processor is connected with the feed point, the processor is further connected with the SAR sensor structure, and the processor is used for controlling the feed points at the two ends of the second circuit board to be grounded respectively when the SAR sensor structure collects that the capacitance of the transmitting antenna is larger than a first threshold value and determines that the electronic equipment is in a non-NFC scene, so that the SAR sensor structure is connected with the first circuit board.

2. The electronic device of claim 1, wherein two opposite target side edges of the rear cover are respectively bent toward an inner wall of the rear cover;

the number of the first circuit boards is two, and the two first circuit boards are respectively attached to the corresponding inner walls at the edges of the target side.

3. The electronic device of claim 2, wherein the NFC antenna comprises two first circuit boards and two second circuit boards, and the first circuit boards and the second circuit boards are connected in sequence and encircle a rectangle;

two ends of each second circuit board are respectively provided with a feed point;

the two target side edges are parallel to each other, and a first direction in which the first circuit board extends is parallel to a second direction in which the target side edges extend.

4. The electronic device of claim 1, further comprising:

each mos tube is correspondingly connected with one mos tube, and each mos tube is grounded;

a control circuit connected between the mos tube and the processor.

5. The electronic device according to claim 1, wherein the number of the transmitting antennas is two, and the two transmitting antennas are respectively and correspondingly located on a top frame and a bottom frame of the electronic device;

the extending directions of the two transmitting antennas respectively correspond to the extending directions parallel to the frame;

the top bezel is parallel to the bottom bezel, and a third direction in which the bezel extends is perpendicular to a second direction in which the target-side edge extends.

6. A control method applied to the electronic device according to any one of claims 1 to 5, the method comprising:

acquiring a position relation between a target object and the first circuit board under the condition that the SAR sensor structure acquires that the capacitance of the transmitting antenna is larger than a first threshold value and the electronic equipment is determined to be in a non-NFC scene;

controlling the transmitting power of the transmitting antenna to be reduced under the condition that the target object and the first circuit board are in a preset position relation;

and under the condition that the target object is not in a preset position relation with the first circuit board, controlling the transmitting power of the transmitting antenna to be kept unchanged.

7. The method according to claim 6, wherein the preset positional relationship satisfies at least any one of:

the contact surface of the target object and the first circuit board is perpendicular to the vertical direction of the first circuit board;

8. A control apparatus for implementing the control method according to claim 6 or 7, the apparatus comprising:

the acquisition module is used for acquiring the position relation between a target object and the first circuit board under the condition that the SAR sensor structure acquires that the capacitance in the transmitting antenna is larger than a first threshold value and the electronic equipment is determined to be in a non-NFC scene;

the first control module is used for controlling the transmission power of the transmitting antenna to be reduced under the condition that the target object and the first circuit board are in a preset position relation;

and the second control module is used for controlling the transmitting power of the transmitting antenna to be kept unchanged under the condition that the target object and the first circuit board are not in a preset position relation.

9. An electronic device comprising a processor, a memory and a program or instructions stored on the memory and executable on the processor, the program or instructions, when executed by the processor, implementing the steps of the control method according to claim 6 or 7.

10. A readable storage medium, characterized in that it stores thereon a program or instructions which, when executed by the processor, implement the steps of the control method according to claim 6 or 7.