WO2019183782A1

WO2019183782A1 - Wireless charging alignment detection method, and electronic device

Info

Publication number: WO2019183782A1
Application number: PCT/CN2018/080570
Authority: WO
Inventors: 袁兵; 郑志勇; 崔瑞
Original assignee: 华为技术有限公司
Priority date: 2018-03-26
Filing date: 2018-03-26
Publication date: 2019-10-03
Also published as: CN111373629A

Abstract

A wireless charging alignment detection method, and an electronic device, which relate to the technical field of wireless charging, and can effectively detect the positional relationship between a mobile phone coil and a charging base coil without adding additional components inside a mobile phone. The wireless charging alignment detection method comprises: receiving a detection signal sent by a charging base, and determining the signal strength of the detection signal (S401); determining a first positional relationship between an electronic device coil and a charging base coil according to a magnitude relationship between the signal strength of the detection signal and a first threshold value (S402), wherein the first positional relationship comprises an alignment or offset of the electronic device coil and the charging base coil; and displaying a first interface comprising information which corresponds to the first positional relationship and is used for prompting a charging condition of an electronic device (S403). The wireless charging alignment detection method is applicable to a wireless charging process of an electronic device.

Description

Parallel detection method and electronic device for wireless charging

Technical field

The present application relates to the field of wireless charging technologies, and in particular, to a method and apparatus for detecting a wireless charging.

Background technique

With the development of wireless charging technology, users can charge electronic devices such as mobile phones by wireless charging. In this way, in the charging process, it is not necessary to consider the adaptation relationship between the data line and the electronic device, which is convenient for the user to use. As shown in FIG. 1 , a schematic diagram of charging the mobile phone 101 by placing the mobile phone 101 on the charging stand 102 by wireless charging.

Since the surface of the charging stand is different from the shape and size of the surface of the mobile phone, and most of the charging stand itself does not have a device that can be used for fixing the mobile phone, the user may cause the mobile phone coil and charging when the mobile phone is placed on the charging stand. The seat coil can not be well aligned, that is, the phone coil and the charging seat coil are biased. In the process of charging the mobile phone using the charging stand, the charging process may be intermittent or unable to be charged, or the mobile phone needs to be charged during the charging process, and the charging stand needs to provide more power for the mobile phone, and even takes longer. Guarantee the charging efficiency of the mobile phone.

In order to solve the above problems, at present, before the mobile phone leaves the factory, two metal sensors can be added inside the mobile phone, as shown in the schematic diagram of the internal structure of the mobile phone shown in FIG. 2 . Among them, the two metal sensors (detection point x and detection point y) and the center of the mobile phone coil have a triangular structure. When the mobile phone is placed on the charging stand, the mobile phone can respectively detect the vertices in the triangular structure by adding two metal sensors and an electromagnetic sensor for detecting the magnetic flux of the coil in the mobile phone (ie, the detection point x, the detection point y, and The magnetic flux of the mobile phone coil multiplexed to detect the point z is determined to determine the positional relationship between the charging socket coil and the mobile phone coil, thereby determining whether the mobile phone coil and the charging socket coil can be well aligned.

In the above manner, although the positional relationship between the handset coil and the charging socket coil can be effectively detected, it is necessary to additionally add two metal sensors inside the mobile phone to increase the manufacturing cost of the mobile phone.

Summary of the invention

The embodiment of the present application provides a method and an electronic device for detecting a wireless charging, which can effectively detect a positional relationship between a mobile phone coil and a charging socket coil without adding additional components inside the mobile phone.

In a first aspect, an embodiment of the present application provides a method for detecting a wireless charging. The method is applied to an electronic device. The method includes receiving a sounding signal transmitted by a charging stand to determine a signal strength of the sounding signal. Then, according to the magnitude relationship between the signal strength of the detection signal and the first threshold, the first positional relationship between the coil of the electronic device and the coil of the charging stand is determined. The first positional relationship includes alignment or offset of the coil of the electronic device and the coil of the charging stand. The first interface is displayed, and the first interface includes information corresponding to the first location relationship for prompting charging status of the electronic device.

The detection signal may be a signal that is periodically transmitted by the charging stand for detecting the wireless charging signal receiving end. When the charging station detects the wireless charging signal receiving end, the electronic device can receive the detection signal sent by the charging stand. The electronic device can determine the first positional relationship between the electronic device coil and the charging socket coil by the signal strength of the detection signal, and cause the electronic device to present the electronic information corresponding to the first positional relationship according to the first positional relationship. Information on the charging status of the device. It should be noted that, in the process of receiving the detection signal by the electronic device, the electronic device can convert the analog signal (ie, the detection signal) into a digital signal by analog-to-digital conversion to obtain a rectified voltage of the detection signal. The electronic device can then calculate the signal strength of the detection signal according to the rectified voltage, and determine the positional relationship between the electronic device coil and the charging socket coil according to the magnitude relationship between the signal strength and the first threshold. The user is then presented with information corresponding to the first location relationship for prompting the charging status of the electronic device.

In an implementation manner, determining a first positional relationship between the coil of the electronic device and the coil of the charging stand according to the magnitude relationship between the signal strength of the detecting signal and the first threshold may be implemented as: when the signal strength of the detecting signal is greater than Or equal to the first threshold, determining that the first positional relationship is the alignment of the electronic device coil and the charging seat coil. Wherein, the electronic device coil and the charging socket coil are aligned such that the distance between the center of the electronic device coil and the center of the charging socket coil is less than or equal to the first distance threshold.

In the process of transmitting the detection signal from the charging stand to the electronic device, when the distance between the center of the charging stand coil and the center of the electronic device coil is small, the signal strength of the detecting signal obtained by the electronic device is large, indicating that the charging seat coil and the charging When the electronic device coil is aligned, that is, the electronic device coil and the charging socket coil are aligned such that the distance between the center of the electronic device coil and the center of the charging socket coil is less than or equal to the first distance threshold, the electronic device coil and the charging seat coil are aligned.

In an implementation manner, determining a first positional relationship between the coil of the electronic device and the coil of the charging stand according to the magnitude relationship between the signal strength of the detecting signal and the first threshold may be implemented as: when the signal strength of the detecting signal is less than At the first threshold, the first positional relationship is determined to be a deviation of the electronic device coil from the charging seat coil. Wherein, the electronic device coil and the charging seat coil are offset such that the distance between the center of the electronic device coil and the center of the charging seat coil is greater than the second distance threshold.

In the process of transmitting the detection signal from the charging stand to the electronic device, when the distance between the center of the charging stand coil and the center of the electronic device coil is large, the signal strength of the detecting signal obtained by the electronic device is small, indicating the charging seat coil When the electronic device coil is misaligned, that is, the electronic device coil and the charging socket coil are aligned such that the distance between the center of the electronic device coil and the center of the charging socket coil is greater than the second distance threshold, the electronic device coil and the charging seat coil are offset.

In one implementation, the power signal transmitted by the charging cradle is received, and the transmission frequency of the power signal is detected. The power signal received by the electronic device is a stable power signal. Then, according to the magnitude relationship between the transmission frequency of the power signal and the second threshold, the second positional relationship between the coil of the electronic device and the coil of the charging stand is determined. The second positional relationship includes alignment or offset of the coil of the electronic device and the coil of the charging stand. The second interface is displayed, and the second interface includes information corresponding to the second location relationship for prompting the charging status of the electronic device.

The power signal is a signal sent by the charging stand after the charging stand and the electronic device successfully shake hands, and may be a signal sent after the charging stand stops detecting the signal. After the electronic device receives the power signal sent by the charging stand, the electronic device can detect the transmitting frequency of the power signal, and determine a second positional relationship between the electronic device coil and the charging stand coil according to the transmitting frequency. Then, the electronic device is caused to display information for prompting the charging status of the electronic device corresponding to the second positional relationship according to the second positional relationship.

In an implementation manner, determining a second positional relationship between the coil of the electronic device and the coil of the charging cradle according to the magnitude relationship between the transmitting frequency of the power signal and the second threshold may be implemented as: when the transmitting frequency of the power signal is greater than Or equal to the second threshold, determining that the second positional relationship is the alignment of the electronic device coil and the charging seat coil. The electronic device coil and the charging stand coil are aligned such that the distance between the center of the electronic device coil and the center of the charging stand coil is less than or equal to the first distance threshold.

In the process of transmitting the power signal from the charging stand to the electronic device, when the distance between the center of the charging stand coil and the center of the electronic device coil is small, the transmitting frequency of the power signal obtained by the electronic device is large, indicating that the charging seat coil is When the electronic device coil is aligned, that is, the electronic device coil and the charging socket coil are aligned such that the distance between the center of the electronic device coil and the center of the charging socket coil is less than or equal to the first distance threshold, the electronic device coil and the charging seat coil are aligned.

In an implementation manner, determining a second positional relationship between the coil of the electronic device and the coil of the charging stand according to the magnitude relationship between the transmitting frequency of the power signal and the second threshold may be implemented as: when the transmitting frequency of the power signal is less than When the second threshold is determined, the second positional relationship is determined to be a deviation of the electronic device coil from the charging seat coil. Wherein, the electronic device coil and the charging seat coil are offset such that the distance between the center of the electronic device coil and the center of the charging seat coil is greater than the second distance threshold.

In the process of transmitting the power signal from the charging stand to the electronic device, when the distance between the center of the charging stand coil and the center of the electronic device coil is large, the transmitting frequency of the power signal obtained by the electronic device is small, indicating the charging seat coil When the electronic device coil is misaligned, that is, the electronic device coil and the charging seat coil are offset such that the distance between the center of the electronic device coil and the center of the charging socket coil is greater than the second distance threshold, the electronic device coil and the charging seat coil are offset.

In one implementation, the distance between the center of the coil of the electronic device and the center of the charging socket coil may be a linear distance between the center of the coil of the electronic device and the center of the charging socket coil, that is, an end point of the line segment of the center of the electronic device coil. The center of the charging socket coil is the other end point of the line segment, and the linear distance between the two end points.

In one implementation, the distance between the center of the coil of the electronic device and the center of the charging socket coil may also be the horizontal distance between the center of the coil of the electronic device and the center of the charging socket coil, that is, the projection of the electronic device coil to the charging socket coil. After the plane, the center of the electronic device coil projection is linearly spaced from the center of the charging socket coil, or after the charging socket coil is projected onto the plane where the electronic device coil is located, the center of the electronic device coil and the center of the charging socket coil projection Straight line distance.

In an implementation manner, the manner of distinguishing the positional relationship between the handset coil and the charging socket coil may also be:

When the absolute value of the offset distance between the center of the coil of the electronic device and the center of the cradle coil is less than or equal to the first deviation threshold, the coil of the electronic device is aligned with the cradle coil; at the center of the coil of the electronic device and at the center of the cradle coil When the absolute value of the deviation distance is greater than the second deviation threshold, the electronic device coil is offset from the charging socket coil. That is, the positional relationship of the center of the coil of the electronic device with respect to the center of the charging socket coil and the magnitude of the deviation are determined based on the center of the charging socket coil. The first deviation threshold is less than or equal to the second deviation threshold.

Alternatively, when the absolute value of the deviation distance between the center of the charging socket coil and the center of the electronic device coil is less than or equal to the first deviation threshold, the electronic device coil is aligned with the charging socket coil; at the center of the charging socket coil and the electronic device coil When the absolute value of the offset distance of the center is greater than the second deviation threshold, the coil of the electronic device and the cradle coil are offset. That is, the positional relationship of the center of the charging stand coil with respect to the center of the electronic device coil and the magnitude of the deviation are determined based on the center of the electronic device coil. The first deviation threshold is less than or equal to the second deviation threshold.

Alternatively, when the deviation distance of the center of the electronic device coil from the center of the charging socket coil is greater than or equal to a third deviation threshold, and the deviation distance between the center of the electronic device coil and the center of the charging socket coil is less than or equal to the fourth deviation threshold The electronic device coil is aligned with the charging socket coil; the deviation distance between the center of the electronic device coil and the center of the charging socket coil is less than a third deviation threshold, or the deviation distance between the center of the electronic device coil and the center of the charging socket coil When it is greater than the fourth deviation threshold, the electronic device coil is offset from the charging socket coil. That is, the positional relationship of the center of the coil of the electronic device with respect to the center of the charging socket coil and the magnitude of the deviation are determined based on the center of the charging socket coil. The third deviation threshold is smaller than the fourth deviation threshold, and the third deviation threshold is a negative number, and the fourth deviation threshold is a positive number.

Alternatively, when the deviation distance of the center of the charging socket coil from the center of the electronic device coil is greater than or equal to a fifth deviation threshold, and the deviation distance between the center of the charging socket coil and the center of the electronic device coil is less than or equal to the sixth deviation threshold The electronic device coil is aligned with the charging socket coil; the deviation distance between the center of the charging socket coil and the center of the electronic device coil is less than a fifth deviation threshold, or the deviation distance between the center of the charging socket coil and the center of the electronic device coil When it is greater than the sixth deviation threshold, the electronic device coil is offset from the charging socket coil. That is, the positional relationship of the center of the charging stand coil with respect to the center of the electronic device coil and the magnitude of the deviation are determined based on the center of the electronic device coil. The fifth deviation threshold is less than the sixth deviation threshold, and the fifth deviation threshold is a negative number, and the sixth deviation threshold is a positive number.

It should be noted that the first and second thresholds mentioned above, the first and second distance thresholds, and the first to sixth deviation thresholds may all be preset, and for the values and setting manners of the foregoing thresholds, Not limited.

In one implementation, when the electronic device coil is offset from the charging cradle, the information of the electronic device charging condition is that the electronic device is slowly charged or the electronic device is not charged.

In one implementation, when the electronic device coil is aligned with the charging cradle, the information of the electronic device charging condition is that the electronic device is normally charged.

In one implementation, the steady current is 150 milliamps.

In a second aspect, an embodiment of the present application provides an electronic device. The electronic device includes a wireless charging receiving end unit, a processing unit, and a display unit. The wireless charging receiving end unit is configured to receive the detection signal sent by the charging base. a processing unit, configured to determine a signal strength of the sounding signal received by the wireless charging receiving unit, and determine a first positional relationship between the electronic device coil and the charging socket coil according to a magnitude relationship between the signal strength of the detecting signal and the first threshold . The first positional relationship includes alignment or offset of the coil of the electronic device and the coil of the charging stand. The display unit displays the first interface under the control of the processing unit. The first interface includes information corresponding to the first location relationship for prompting charging status of the electronic device.

In one implementation, the wireless charging receiver unit includes an analog to digital conversion unit and a control processing unit. And an analog-to-digital conversion unit configured to perform analog-to-digital conversion on the detection signal received by the wireless charging receiving end unit to obtain a rectified voltage of the detection signal. And a control processing unit, configured to determine a signal strength of the detection signal according to the rectified voltage of the detection signal.

In one implementation, the processing unit is configured to: determine that the signal strength of the detection signal is greater than or equal to the first threshold, and the first positional relationship is that the electronic device coil is aligned with the charging socket coil. Wherein, the electronic device coil and the charging socket coil are aligned such that the distance between the center of the electronic device coil and the center of the charging socket coil is less than or equal to the first distance threshold.

In an implementation manner, the processing unit is configured to: determine that the signal strength of the sounding signal is less than a first threshold, and the first positional relationship is that the electronic device coil and the charging seat coil are offset. Wherein, the electronic device coil and the charging seat coil are offset such that the distance between the center of the electronic device coil and the center of the charging seat coil is greater than the second distance threshold.

In an implementation manner, the electronic device further includes a charging unit, and the processing unit controls the charging unit to cause the charging unit to output a stable current. The wireless charging receiving end unit is configured to receive a power signal sent by the charging base and detect a transmitting frequency of the power signal. The power signal received by the wireless charging receiving end unit is a stable power signal. And a processing unit, configured to determine a second positional relationship between the electronic device coil and the cradle coil according to a magnitude relationship between a transmission frequency of the power signal received by the wireless charging receiving end unit and the second threshold. The second positional relationship includes alignment or offset of the coil of the electronic device and the coil of the charging stand. The display unit displays the second interface under the control of the processing unit. The second interface includes information corresponding to the second location relationship for prompting the charging status of the electronic device.

In one implementation, the electronic device includes a frequency detection unit. The frequency detecting unit is configured to detect a transmitting frequency of the power signal received by the wireless charging receiving end unit.

In an implementation manner, the processing unit is configured to: determine that a transmission frequency of the power signal is greater than or equal to a second threshold, and the second positional relationship is that the electronic device coil is aligned with the charging socket coil. Wherein, the electronic device coil and the charging socket coil are aligned such that the distance between the center of the electronic device coil and the center of the charging socket coil is less than or equal to the first distance threshold.

In an implementation manner, the processing unit is configured to: determine that a transmission frequency of the power signal is less than a second threshold, and the second positional relationship is that the electronic device coil and the charging socket coil are offset. Wherein, the electronic device coil and the charging seat coil are offset such that the distance between the center of the electronic device coil and the center of the charging seat coil is greater than the second distance threshold.

In one implementation, the steady current is 150 milliamps.

In a third aspect, an embodiment of the present application provides an electronic device. The electronic device includes a display screen, a memory, one or more processors, a plurality of applications, and one or more programs; wherein the one or more programs are stored in the memory; The one or more processors, when executing the one or more programs, cause the electronic device to implement the method of any of the first aspect and various implementations thereof.

In a fourth aspect, an embodiment of the present application provides a readable storage medium, including instructions. When the instruction is run on an electronic device, the electronic device is caused to perform the method of any of the first aspect and various implementations thereof.

In a fifth aspect, the embodiment of the present application provides a computer program product, where the computer program product includes software code, and the software code is used to execute the method according to any one of the foregoing first aspect and various implementation manners thereof.

In a sixth aspect, the embodiment of the present application provides a graphical user interface for performing the method according to any one of the foregoing first aspect and various implementation manners thereof.

In a seventh aspect, the embodiment of the present application provides a method for detecting a wireless charging, which is applied to an electronic device, including: receiving a power signal sent by a charging base, detecting a transmitting frequency of the power signal, wherein a power signal of the electronic device may be For a stable power signal, for example, the power signal received by the electronic device is a stable power signal; and determining the electronic device coil and the charging socket coil according to the magnitude relationship between the transmitting frequency of the power signal and the second threshold a second positional relationship, the second positional relationship including the alignment or offset of the electronic device coil and the charging socket coil; displaying a second interface, the second interface including corresponding to the second positional relationship Information for prompting the charging status of the electronic device.

In an implementation manner, the determining, according to a magnitude relationship between a transmit frequency of the power signal and a second threshold, determining a second positional relationship between the electronic device coil and the cradle coil, including: When the transmission frequency of the power signal is greater than or equal to the second threshold, determining that the second position relationship is that the electronic device coil is aligned with the charging socket coil, the electronic device coil and the charging socket coil The alignment is a distance between a center of the coil of the electronic device and a center of the cradle coil that is less than or equal to a first distance threshold.

In an implementation manner, the determining, according to a magnitude relationship between a transmit frequency of the power signal and a second threshold, determining a second positional relationship between the electronic device coil and the cradle coil, including: When the transmission frequency of the power signal is less than the second threshold, determining that the second positional relationship is that the electronic device coil is offset from the charging socket coil, and the electronic device coil and the charging socket coil are offset A distance between a center of the coil of the electronic device and a center of the cradle coil is greater than a second distance threshold.

Wherein, when the electronic device coil is offset from the charging seat coil, the information of the electronic device charging condition is that the electronic device is slowly charged or the electronic device is not charged. When the electronic device coil is aligned with the charging cradle, the information of the electronic device charging condition is that the electronic device is normally charged.

In an eighth aspect, an embodiment of the present application provides an electronic device, including a wireless charging receiving end unit, a processing unit, and a display unit. The wireless charging receiving end unit is configured to receive a power signal sent by the charging stand, and detect the a transmission frequency of the power signal, wherein the power signal of the wireless charging receiving end unit is a stable power signal, for example, the power signal received by the wireless charging receiving end unit is a stable power signal; and the processing unit is configured to Determining, by the wireless charging receiving end unit, a magnitude relationship between a transmission frequency of the power signal and a second threshold, determining a second positional relationship between the electronic device coil and the charging socket coil, the second Positional relationship includes aligning or offsetting the electronic device coil with the charging cradle; the display unit displaying a second interface under control of the processing unit, the second interface including the second position The relationship corresponds to information for prompting the charging status of the electronic device.

In an implementation, the processing unit is configured to: determine that a transmit frequency of the power signal is greater than or equal to the second threshold, and the second location relationship is the electronic device coil and the charging cradle In alignment, the electronic device coil and the cradle coil are aligned such that a distance between a center of the electronic device coil and a center of the cradle coil is less than or equal to a first distance threshold.

In an implementation manner, the processing unit is configured to: determine that a transmit frequency of the power signal is less than the second threshold, and the second positional relationship is that the electronic device coil and the charging stand coil are offset The electronic device coil and the charging base coil are offset such that a distance between a center of the electronic device coil and a center of the charging socket coil is greater than a second distance threshold.

In one implementation, when the electronic device coil is offset from the charging cradle, the information of the electronic device charging condition is that the electronic device is slowly charged or the electronic device is not charged. When the electronic device coil is aligned with the charging cradle, the information of the electronic device charging condition is that the electronic device is normally charged.

In an implementation, the electronic device includes a frequency detecting unit, and the frequency detecting unit is configured to detect a transmitting frequency of the power signal received by the wireless charging receiving end unit.

In one implementation, the electronic device further includes a charging unit, and the processing unit controls the charging unit to cause the charging unit to output a steady current. Among them, the steady current can be 150 mA.

It can be understood that a stable power signal does not necessarily require that the power signal be strictly constant, and may allow a certain error, which may be different based on different product errors.

For the above implementation, the electronic device may be a mobile phone, the display unit may be a touch display screen, the processing unit may be an application processor, and the wireless charging receiving end unit may be a wireless charging receiving end chip.

DRAWINGS

FIG. 1 is a schematic diagram 1 of wireless charging according to an embodiment of the present application;

2 is a schematic structural diagram of a mobile phone provided by the prior art;

3 is a schematic structural diagram 1 of an electronic device according to an embodiment of the present application;

FIG. 4 is a schematic structural diagram 2 of an electronic device according to an embodiment of the present disclosure;

FIG. 5 is a flowchart 1 of a method provided by an embodiment of the present application;

FIG. 6( a ) is a schematic diagram 2 of wireless charging according to an embodiment of the present application;

FIG. 6(b) is a schematic diagram 3 of wireless charging according to an embodiment of the present application;

FIG. 7 is a schematic diagram of signal strength changes according to an embodiment of the present application;

FIG. 8( a ) is a schematic diagram 1 of a display interface according to an embodiment of the present application;

FIG. 8(b) is a second schematic diagram of a display interface according to an embodiment of the present application;

Figure 9 is a flowchart 2 of the method provided by the embodiment of the present application;

FIG. 10 is a schematic diagram of a change in transmission frequency according to an embodiment of the present application;

FIG. 11 is a schematic structural diagram 3 of an electronic device according to an embodiment of the present application.

Description of the reference signs:

101-phone;

102- charging stand;

103-phone coil;

104- charging seat coil;

105-the center of the mobile phone coil;

106- the center of the charging socket coil;

107-phone;

108-screen.

detailed description

The embodiment of the present application can be used in an electronic device, which can be a notebook computer, a smart phone, a virtual reality (VR) device, an augmented reality (AR), an in-vehicle device, or a smart wearable. Equipment such as equipment. The electronic device 200 can be configured with at least a display screen, an input device, and a processor. As shown in FIG. 3, the electronic device 200 includes a processor 201, a memory 202, a camera 203, and a radio frequency (Radio Frequency, RF) circuit 204, audio circuit 205, speaker 206, microphone 207, input device 208, other input device 209, display screen 210, touch panel 211, display panel 212, output device 213, power source 214, and sensor 215. The display screen 210 includes at least a touch panel 211 as an input device and a display panel 212 as an output device. It should be noted that the electronic device structure shown in FIG. 3 does not constitute a limitation on the electronic device, and the electronic device may include more or less components than the illustrated, or combine some components, or split some components. , or different component arrangements, are not limited here.

The components of the electronic device 200 will be specifically described below with reference to FIG. 3:

The RF circuit 204 can be used for transmitting and receiving information or during a call, receiving and transmitting signals, and can also communicate with the network and other devices through wireless communication. The wireless communication can use a communication standard or protocol. Generally, RF circuits include, but are not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a Low Noise Amplifier (LNA), a duplexer, and the like.

Memory 202 can be used to store software programs. The processor 201 can execute various functional applications and data processing of the electronic device 200 by running a software program stored in the memory 202. The memory 202 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application required for at least one function (for example, a sound playing function, an image playing function, etc.), and the like; the storage data area may be stored. Data (such as audio data, video data, etc.) created in accordance with the use of the electronic device 200, and the like. Moreover, memory 202 can include high speed random access memory, and can also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.

In an exemplary implementation manner of the embodiment of the present application, the content stored in the memory 202 is not limited. For example, the memory 202 may be used to store parameters such as a threshold for determining whether the mobile phone coil and the charging cradle are aligned. At least one of them.

Other input devices 209 can be used to receive input information as well as generate key signal inputs related to user settings and function controls of electronic device 200. Other input devices 209 may also include sensors 215 built into the electronic device 200, such as gravity sensors, acceleration sensors, etc., and the electronic device 200 may also use the parameters detected by the sensors 215 as input data.

In an exemplary implementation of the embodiment of the present application, the sensor 215 may be an electromagnetic sensor, which may be used to detect a change in magnetic flux caused by electromagnetic induction between the handset coil and the cradle coil.

The display screen 210 can be used to display information input by the user or information provided to the user as well as various menus of the electronic device 200, and can also accept user input. The display screen 210 may include a touch panel 211 and a display panel 212. The touch panel 211, also referred to as a touch screen, a touch sensitive screen, etc., can collect contact or non-contact operations on or near the user, and drive the corresponding connecting device according to a preset program; the display panel 212 can be used. It is configured in the form of a liquid crystal display (LCD) or an organic light-emitting diode (OLED). In general, the touch panel 211 can cover the display panel 212, and the user can cover the display panel 212 according to the content displayed by the display panel 212 (including but not limited to a soft keyboard, a virtual mouse, a virtual button, an icon, etc.). The touch panel 211 operates on or near the touch panel 211, and after the touch panel 211 detects the operation thereon or nearby, it is transmitted to the processor 201 to determine the user input, and then the processor 201 provides the display panel 212 according to the user input. Corresponding visual output. Although the touch panel 211 and the display panel 212 are used as two independent components to implement the input and output functions of the electronic device 200 in FIG. 3, in some embodiments, the touch panel 211 and the display panel 212 may be Integration to implement input and output functions of the electronic device 200.

The speaker 206 and microphone 207 can provide an audio interface between the user and the electronic device 200. The audio circuit 205 can transmit the converted audio data to the speaker 206 for conversion to the sound signal output. On the other hand, the microphone 207 can convert the collected sound signal into a signal, which is received by the audio circuit 205. The audio data is then converted to audio data, and the audio data is output to the RF circuit 204 for transmission to a device such as another electronic device, or the audio data is output to the memory 202 for the processor 201 to perform further processing in conjunction with the content stored in the memory 102. . In addition, the camera 203 can acquire image frames in real time and transmit them to the processor 201 for processing, and store the processed results to the memory 202 and/or present the processed results to the user via the display panel 212.

The processor 201 is a control center of the electronic device 200 that connects various portions of the entire electronic device 200 using various interfaces and lines, by running or executing software programs and/or modules stored in the memory 202, and by calling them stored in the memory 202. The data, performing various functions and processing data of the electronic device 200, thereby performing overall monitoring of the electronic device 200. It should be noted that the processor 201 may include one or more processing units; the processor 201 may further integrate an application processor and a modem processor, where the application processor mainly processes an operating system, a user interface (User Interface, UI) And the application, etc., the modem processor mainly handles wireless communication. It can be understood that the above modem processor may not be integrated into the processor 201.

In the embodiment of the present application, the electronic device 200 may further include a wireless power receiver chip (Wireless Power Receiver IC) 216 and a charging chip (Charge IC) 217. The wireless charging receiving end chip 216 can be configured to receive the detection signal and the power signal sent by the charging base. The wireless charging receiving end chip 216 can determine a rectified voltage obtained after the detecting signal is rectified, and determine the signal strength of the detecting signal according to the rectified voltage. When the wireless charging receiver chip 216 receives the stable power signal, the wireless charging receiver chip 216 can also detect the transmission frequency of the power signal. It should be noted that the charging stand can transmit the detection signal and the power signal through the wireless power transmitter (Wireless Power Transmitter).

The processor 201 can determine the positional relationship between the coil of the electronic device and the coil of the charging stand according to the signal strength of the detection signal or the transmission frequency of the power signal. The positional relationship between the coil of the electronic device and the coil of the charging stand may include the alignment or offset of the coil of the electronic device and the coil of the charging stand.

The detection signal is periodically transmitted by the wireless charging transmitting end according to a certain time interval, and is used for detecting whether there is a wireless charging receiver (Wireless Power Receiver) signal nearby, or is aperiodicly transmitting according to a certain rule. Whether there is a signal of the wireless charging receiving end in the vicinity of the detection. In the embodiment of the present application, the detection signal may be a PING signal.

It should be noted that the PING signal is in the Qi standard (the Qi standard is the world's first standardization organization to promote wireless charging technology - the "Wireless Charging" standard introduced by the Wireless Power Consortium (WPC)). A signal transmitted once every 500 milliseconds (ms), usually each time the sender sends a PING signal for a duration of 90 milliseconds. The transmission frequency of the PING signal is typically between 100 kilohertz (KHz) and 205 KHz. After receiving the PING signal at the receiving end, the receiving end may return a response signal to the transmitting end in response to the PING signal to confirm that the connection between the receiving end and the transmitting end is established, that is, the receiving end and the transmitting end shake hands. After receiving the response signal at the transmitting end, the transmission of the PING signal may be stopped, and the power receiving signal is transmitted to enable the receiving end to implement functions such as charging. The sending end can be a charging stand, and the receiving end can be an electronic device, such as a mobile phone.

In an implementation manner of the embodiment of the present application, the output voltage of the wireless charging receiving end chip 216 is output to the charging chip 217 through a Low Dropout Regulator (LDO), so that the charging chip 217 implements the electronic device 200. The power supply, for example, powers the system of the electronic device 200, and supplies power to the battery of the electronic device 200.

The electronic device 200 can also include a power source 214 (such as a battery) for supplying power to the various components. In the embodiment of the present application, the power source 214 can be logically connected to the processor 201 through the power management system, thereby managing charging and discharging through the power management system. And power consumption and other functions.

In addition, there are components not shown in FIG. 3, for example, the electronic device 200 may further include a Bluetooth module and the like, and details are not described herein.

The technical solution provided by the embodiment of the present application is described below by taking the electronic device 200 as a mobile phone as an example. The mobile phone can be a full-screen mobile phone, or a mobile phone with a screen and a physical button independent of the screen on the front of the mobile phone. In the embodiment of the present application, the form, function, and the like of the mobile phone are not limited.

As shown in FIG. 4, it is a schematic diagram of an exemplary mobile phone part structure provided by an embodiment of the present application. The wireless charging receiver chip 216 includes a control processor 301 and an analog-to-digital converter (ADC) 303. When the mobile phone is placed on the charging stand, the analog-to-digital converter 303 can be used to send the rectified voltage obtained by the analog-to-digital conversion of the detection signal such as the PING signal received by the wireless charging receiving end chip 216 as an input parameter. The control processor 301 or the control processor 301 reads the rectified voltage from the analog to digital converter 303. The control processor 301 obtains the signal strength (SS) of the detection signal according to the rectified voltage. After the processor 201 reads the signal strength of the detection signal from the control processor 301, or the control processor 301 reports the signal strength of the detection signal to the processor 201, the processor 201 can The magnitude relationship between the signal strength of the detection signal and the first threshold is used to determine a first positional relationship between the handset coil and the cradle coil, that is, to determine a misalignment or alignment of the handset coil and the cradle coil. It should be noted that the processor 201 reads the signal strength of the detection signal, and the processor 201 can read the signal strength of the detection signal from the register 302 of the control processor 301.

Wherein, the alignment of the mobile phone coil and the charging socket coil refers to the distance between the center of the mobile phone coil and the center of the charging socket coil is less than or equal to the first distance threshold; the offset of the mobile phone coil and the charging socket coil refers to the center of the mobile phone coil and charging The distance of the center of the seat coil is greater than the second distance threshold. The first distance threshold may be less than or equal to the second distance threshold.

In an implementation manner, the distance between the center of the mobile phone coil and the center of the charging socket coil may be a linear distance between the center of the mobile phone coil and the center of the charging socket coil, that is, an end point of the line of the mobile phone coil is used for charging The center of the coil is the other end of the line segment, the linear distance between the two ends. For example, as shown in FIG. 6(a), the linear distance between the center 105 of the handset coil 103 and the center 106 of the cradle coil 104 is less than the first distance threshold, and then the handset coil and the cradle coil are aligned. For another example, as shown in FIG. 6(b), the linear distance between the center 105 of the handset coil 103 and the center 106 of the cradle coil 104 is greater than the second distance threshold, and then the handset coil and the cradle coil are offset.

In another implementation manner, the distance between the center of the mobile phone coil and the center of the charging socket coil may also be the horizontal distance between the center of the mobile phone coil and the center of the charging socket coil, that is, after the mobile phone coil is projected onto the plane where the charging seat coil is located. The linear distance between the center of the mobile phone coil projection and the center of the charging socket coil, or the linear distance between the center of the mobile phone coil and the center of the charging socket coil after projecting the charging socket coil to the plane where the mobile phone coil is located.

In an implementation manner of the embodiment of the present application, the manner of distinguishing the positional relationship between the mobile phone coil and the charging socket coil may also be:

When the absolute value of the deviation distance between the center of the mobile phone coil and the center of the charging socket coil is less than or equal to the first deviation threshold, the handset coil and the charging socket coil are aligned; the distance between the center of the mobile phone coil and the center of the charging socket coil is When the absolute value is greater than the second deviation threshold, the handset coil and the charging base coil are offset. That is, based on the center of the charging socket coil, the positional relationship of the center of the mobile phone coil with respect to the center of the charging socket coil and the magnitude of the deviation are determined. The first deviation threshold is less than or equal to the second deviation threshold.

The deviation distance between the center of the mobile phone coil and the center of the charging socket coil refers to the projection of the center of the mobile phone coil based on the center of the charging socket coil (ie, the projection of the mobile phone coil after the mobile phone coil is projected onto the plane where the charging socket coil is located) The distance from the center of the charging socket coil; or the distance between the center of the handset coil and the center of the charging socket coil in a three-dimensional space based on the center of the charging socket coil.

Alternatively, when the absolute value of the deviation distance between the center of the charging socket coil and the center of the mobile phone coil is less than or equal to the first deviation threshold, the handset coil and the charging socket coil are aligned; the center of the charging socket coil deviates from the center of the mobile phone coil When the absolute value of the distance is greater than the second deviation threshold, the handset coil and the charging base coil are offset. That is, based on the center of the cell phone coil, the positional relationship of the center of the charging stand coil with respect to the center of the cell phone coil, and the magnitude of the deviation are determined. Wherein, the first deviation threshold may be less than or equal to the second deviation threshold.

The deviation distance between the center of the charging socket coil and the center of the mobile phone coil refers to the projection of the center of the charging socket coil based on the center of the mobile phone coil (ie, after the charging socket coil is projected onto the plane where the mobile phone coil is located, the charging charging seat is projected) The distance from the center of the coil to the center of the handset coil; or the distance between the center of the charging socket coil and the center of the handset coil in a three-dimensional space based on the center of the handset coil.

It should be noted that the deviation distance between the center of the mobile phone coil and the center of the charging socket coil, and the deviation distance between the center of the charging socket coil and the center of the mobile phone coil may be defined as parameters having positive and negative directions, that is, the above two The deviation distance can be positive, negative or zero.

For example, the center of the cell phone coil may be pre-defined with respect to the center of the cradle coil, and the left direction is deviated to the positive direction of the deviation. Then, when the center of the mobile phone coil is located on the left side of the center of the charging socket coil, the deviation distance is an integer; when the center of the mobile phone coil is located at the right side of the center of the charging socket coil, the deviation distance is a negative value; When the center of the handset coil is opposite to the center of the cradle coil, the offset distance is 0.

When the deviation distance between the center of the mobile phone coil and the center of the charging socket coil is greater than or equal to a third deviation threshold, and the deviation distance between the center of the mobile phone coil and the center of the charging socket coil is less than or equal to a fourth deviation threshold, the mobile phone coil and The charging socket coil is aligned; when the deviation distance between the center of the mobile phone coil and the center of the charging socket coil is less than a third deviation threshold, or when the deviation distance between the center of the mobile phone coil and the center of the charging socket coil is greater than a fourth deviation threshold, The phone coil and the charging seat coil are offset. That is, based on the center of the charging socket coil, the positional relationship of the center of the mobile phone coil with respect to the center of the charging socket coil and the magnitude of the deviation are determined. The third deviation threshold is smaller than the fourth deviation threshold, and the third deviation threshold is a negative number, and the fourth deviation threshold is a positive number.

For example, the third offset threshold may be set to minus 6 millimeters (mm) and the fourth offset threshold may be set to 8 millimeters. It should be noted that the negative 6 mm is an example value of the third deviation threshold, and the 8 mm is an exemplary value of the fourth deviation threshold. The third deviation threshold may also be set to a negative 5. The millimeter, the negative 7 mm, and the like, the fourth deviation threshold may be set to 7 mm, 9 mm, etc., which is not limited herein.

When the deviation distance between the center of the charging socket coil and the center of the mobile phone coil is greater than or equal to a fifth deviation threshold, and the deviation distance between the center of the charging socket coil and the center of the mobile phone coil is less than or equal to a sixth deviation threshold, the mobile phone coil and The charging socket coil is aligned; when the deviation distance between the center of the charging socket coil and the center of the mobile phone coil is less than the fifth deviation threshold, or the deviation distance between the center of the charging socket coil and the center of the mobile phone coil is greater than the sixth deviation threshold, The phone coil and the charging seat coil are offset. That is, based on the center of the cell phone coil, the positional relationship of the center of the charging stand coil with respect to the center of the cell phone coil, and the magnitude of the deviation are determined. The fifth deviation threshold is less than the sixth deviation threshold, and the fifth deviation threshold is a negative number, and the sixth deviation threshold is a positive number.

For example, the fifth deviation threshold may be set to minus 8 mm, and the sixth deviation threshold may be set to 6 mm. It should be noted that the negative 8 mm is an example value of the fifth deviation threshold, and the 6 mm is an exemplary value of the sixth deviation threshold, which is not limited to the embodiment of the present application, and the fifth deviation threshold may also be set to negative 9 The millimeter, the negative 7 mm, etc., the sixth deviation threshold may also be set to 5 mm, 7 mm, etc., which is not limited herein.

It should be noted that the negative value exists for the third deviation threshold or the fifth deviation threshold because of the relative deviation direction between the center of the charging socket coil and the center of the handset coil. The purpose of setting the third deviation threshold and the fourth deviation threshold is to ensure that the distance between the center of the handset coil and the center of the charging socket coil does not exceed a certain range, so that the handset coil and the charging socket coil can be aligned. Similarly, the purpose of setting the fifth deviation threshold and the sixth deviation threshold is to ensure that the center of the charging socket coil deviates from the center of the mobile phone coil by a certain range, so that the charging socket coil and the mobile phone coil are aligned.

In addition, the wireless charging receiver chip 216 may also include a frequency meter 304. The frequency meter 304 can be configured to detect a transmission frequency of a power signal transmitted by the wireless charging transmitting end, and send the transmitting frequency as an input parameter to the processor 201, or the processor 201 reads the frequency signal from the frequency meter 304. The transmitting frequency, or the wireless charging receiving end chip 216 stores the transmitting frequency of the power signal detected by the frequency meter 304 to the register 302 for reading by the processor 201 or the like. The processor 201 can then determine a second positional relationship between the handset coil and the cradle coil according to the magnitude relationship between the transmit frequency of the power signal and the second threshold, that is, determine the offset between the handset coil and the cradle coil or Counterpoint.

The register 302 may be located in the control processor 301, and the register 302 may be used to store a rectified voltage obtained by converting the analog-to-digital converter 303 by converting a signal (converting an analog signal into a digital signal), and may also be used for detecting the frequency meter 304. The frequency at which the power signal is transmitted. When the processor 201 needs to determine the positional relationship between the handset coil and the cradle coil according to the signal strength of the detection signal or the transmission frequency of the power signal, the control processor 301 can read these parameters from the register 302 and report them to the controller 201. The processor 201; alternatively, the processor 201 can read these parameters directly from the register 302. In the embodiment of the present application, the content and the like stored in the register 302 are not limited. It should be noted that, in an implementation manner of the embodiment of the present application, the register 302 may be separately disposed in the wireless charging receiving end chip 216 independently of the control processor 301, and the setting manner of the register 302 is not limited herein. .

It should be noted that after the processor 201 determines the positional relationship between the handset coil and the charging cradle, the processor 201 may determine that the handset coil and the charging cradle are offset or aligned, and the processor 201 controls the output device 213 by means of The panel 212 is displayed to achieve the effect of prompting the user. In the embodiment of the present application, the manner in which the mobile phone prompts the user includes, but is not limited to, at least one of a plurality of contents, such as the charging animation, the charging icon, and the information prompting the user to adjust the placement position of the mobile phone, by the mobile phone through the screen, and not Limited. Among them, the charging animation may be an animation that cannot be successfully charged or charged slowly due to the deviation of the coil of the mobile phone and the coil of the charging stand.

The solution for detecting the positional relationship between the coil of the electronic device and the coil of the charging stand provided by the embodiment of the present application will be described below with reference to specific examples. As shown in FIG. 5, it is a schematic flowchart of an exemplary wireless charging alignment detecting method provided by an embodiment of the present application. The method may be applied to the electronic device 200, and the method includes S401 to S403.

S401. Receive a detection signal sent by the charging base, and determine a signal strength of the detection signal.

In one implementation, the probe signal can be a PING signal. In the embodiment of the present application. The wireless charging transmitter chip of the charging stand, that is, the transmitting end, can transmit a PING signal as a detecting signal at a transmitting frequency between 100 kHz and 205 kHz to detect a wireless charging receiving end (ie, a wireless charging receiving end chip) and wirelessly charge the battery. The receiving end is powered on and shakes hands with the wireless charging transmitter. After receiving the detection signal, the wireless charging receiving end chip of the electronic device can convert the detection signal into a rectified voltage through an analog-to-digital converter, and then the rectifying voltage is processed by the control processor, for example, the control processing The rectified voltage can be calculated to obtain the signal strength of the detected signal.

Wherein, the signal strength of the detection signal is in the Qi standard, indicating that the wireless charging receiver chip sends the rectified voltage to the control processor after receiving the PING signal, and the control processor obtains the signal strength according to the DC voltage. . Among them, in the control processor to complete the conversion of the rectified voltage to the signal strength can refer to the following formula:

SS=U/Umax*256

Wherein, U is the voltage after the alternating current supplied by the detection signal received by the wireless charging receiving end chip is converted into direct current, that is, the rectified voltage Vrect, and the Vrect is output to the charging chip through a low-voltage drop linear regulator; Umax is theoretically detected. The maximum voltage that the signal can reach, in the embodiment of the present application, can take Umax to be 10 volts (V). It should be noted that Umax can also take other values. In this embodiment, Umax is 10 volts as an example.

For example, when the control processor determines that the signal strength value is 136, it can be obtained according to the above formula. After the wireless charging receiver chip is converted between the alternating current and the direct current, the obtained Vrect is 5.3 volts; When the value of the signal strength is 88, it can be obtained according to the above formula. After the conversion between the alternating current and the direct current of the wireless charging receiving end chip, the obtained Vrect is 3.4 volts.

In the embodiment of the present application, the value of the signal strength may be related to the PING signal sent by the wireless charging transmitting end, for example, related to the transmitting power of the PING signal, and may also be related to the coil of the wireless charging receiving end (ie, the electronic device coil, For example, the inductance value of the mobile phone coil). For example, in the case where the positional relationship between the wireless charging stand and the electronic device is unchanged, the larger the transmitting power of the PING signal transmitted at the wireless charging transmitting end, the larger the value of the signal strength; conversely, the wireless charging is transmitted. The smaller the transmission power of the PING signal transmitted by the terminal, the smaller the value of the signal strength. For example, when the inductance value of the coil of the wireless charging receiving end is large, the value of the signal strength is also large; conversely, when the inductance value of the coil of the wireless charging receiving end is small, the value of the signal strength is also small. It should be noted that the magnitude of the signal strength may be related to other parameters, for example, related to the inductance value of the coil of the wireless charging transmitting end (ie, the charging socket coil), and is not limited herein.

S402. Determine a first positional relationship between the coil of the electronic device and the coil of the charging stand according to the magnitude relationship between the signal strength of the detection signal and the first threshold.

The first threshold is a preset threshold for measuring the magnitude of the signal strength based on empirical values such as experimental data. In an implementation manner of the embodiment of the present application, the value of the first threshold may be 105. It should be noted that the first threshold value may also take other values. In the embodiment of the present application, the value of 105 is taken as an example of the first threshold value.

For example, when the signal strength of the sounding signal is greater than or equal to the first threshold, determining that the first positional relationship is the alignment between the electronic device coil and the charging seat coil; when the signal strength of the sounding signal is less than the first threshold, determining the first positional relationship is The coil of the electronic device is offset from the coil of the charging stand.

Taking the mobile phone as an example, as shown in FIG. 7, when the center of the mobile phone coil and the center of the charging socket coil are in different positional relationship, that is, when the horizontal deviation distance between the center of the mobile phone coil and the center of the charging socket coil is different, the mobile phone determines Schematic diagram of the change in the value of the signal strength.

In the embodiment of the present application, the positive direction of the deviation may be defined in advance. For example, referring to the position of the center of the charging socket coil, when the center of the mobile phone coil is deviated to the left side, for example, after the position of the mobile phone coil and the charging socket coil is fixedly observed, the deviation of the center of the mobile phone coil to the left side may include Deviation occurs in the positive left direction, the left front direction, or the left rear direction. At this time, the deviation distance can be recorded as a positive number. Similarly, referring to the position of the center of the charging socket coil, when the center of the mobile phone coil deviates to the right side, the deviation distance can be recorded as a negative number. It should be noted that the definition of the positive direction of the deviation includes, but is not limited to, the above-mentioned exemplary conditions. In the embodiment of the present application, the evaluation rule for the deviation of the deviation distance is not limited.

It can be seen from FIG. 7 that in the embodiment of the present application, when the mobile phone coil and the charging seat coil are aligned, the signal strength takes a large value, and the maximum signal strength can reach 136; the mobile phone coil and the charging seat coil are in a bias position, and the mobile phone When the deviation distance between the center of the coil and the center of the charging socket coil is large, the signal intensity is small, and the minimum signal intensity shown in FIG. 7 can reach 88.

Taking FIG. 7 as an example, the size of the first threshold may be set to 105, that is, when the value of the signal strength is greater than or equal to 105, the coil of the mobile phone is aligned with the coil of the charging stand; when the value of the signal strength is less than 105, the ring of the mobile phone Offset with the charging seat coil.

It should be noted that the first threshold is used to determine whether the distance corresponding to the current value of the signal strength can ensure the alignment of the coil of the mobile phone and the charging socket according to the relationship between the signal strength and the first threshold. Help the mobile phone to determine the current charging status of the mobile phone, and then determine what content needs to be presented to the user to inform the user of the current charging status of the mobile phone. The value of the first threshold is not limited to the above-mentioned case, and may be determined according to the performance of the mobile phone, the charging stand, and/or the charging condition currently required by the mobile phone, etc., where the setting method and value of the intensity threshold are not Limited.

It should be noted that, in the charging process of the electronic device, when the power of the electronic device is constant, in the case where the coil of the electronic device is aligned with the coil of the charging stand, the smaller the transmitting power provided by the charging stand, the larger the transmitting frequency; When the device coil and the charging socket coil are deviated, the larger the transmitting power provided by the charging base and the smaller the transmitting frequency, the requirements of the electronic device can be satisfied.

It can be seen that for the wireless charging process, in order to ensure the charging efficiency of the electronic device, it is necessary to ensure that the electronic device coil and the charging socket coil are aligned as much as possible. Therefore, in the embodiment of the present application, once the electronic device detects that the electronic device coil and the charging seat coil are misaligned, the electronic device may present the first interface by displaying to prompt the current electronic device coil and the charging seat coil to be misaligned. For example, informing the user that the current location of the electronic device is not conducive to charging, and selectively providing the user with information that needs to adjust the placement position of the electronic device. Alternatively, when the electronic device detects that the electronic device coil is aligned with the charging socket coil, the electronic device may present the first interface by display to prompt the current electronic device coil to align with the charging socket coil. For example, informing the user that the current location of the electronic device can ensure that the electronic device is charging better, and selectively prompting the user not to move the placement position of the electronic device.

S403. Display a first interface.

The first interface includes information corresponding to the first location relationship for prompting charging status of the electronic device.

In the embodiment of the present application, the charging condition of the electronic device includes charging of the electronic device and failure of the electronic device to be charged. The charging of the electronic device includes, but is not limited to, slow charging of the electronic device and normal charging of the electronic device. When the electronic device is charging slowly, the time for the electronic device to complete charging is greater than the time for the electronic device to complete charging when the electronic device is normally charged. In other words, for an electronic device, when the amount of power that the electronic device needs to be charged is the same, the charging time of the electronic device that is slow to charge is greater than that of the electronic device that is normally charged.

It should be noted that when the electronic device coil and the charging seat coil are deviated, the charging condition of the electronic device is that the electronic device is slowly charged or the electronic device is not charged; when the electronic device coil is aligned with the charging seat coil, the charging condition of the electronic device is electronic. The device is charging normally.

Taking the mobile phone as an example, after the mobile phone is placed on the charging stand, when the mobile phone coil and the charging seat coil are aligned, the mobile phone can present the first interface through the screen. As shown in FIG. 8(a), taking a full screen mobile phone as an example, the mobile phone 107 presents a first interface through the screen 108. In the first interface, the mobile phone 107 selectively displays at least a positional relationship between the mobile phone coil and the charging cradle, a charging state of the mobile phone, an animation for reflecting the charging progress of the mobile phone, and at least a user's operation. One.

Wherein, the mobile phone can display the positional relationship between the mobile phone coil and the charging socket coil by displaying the words “the alignment of the mobile phone coil and the charging socket coil”; the words “normal charging of the mobile phone” are displayed to indicate the charging state of the mobile phone; The words “Do not move the phone” are used to remind the user that the mobile phone is not in the charging position during the charging process, so as to ensure the continuity of the charging process of the mobile phone.

Taking the mobile phone as an example, after the mobile phone is placed on the charging stand, when the mobile phone coil and the charging seat coil are biased, the mobile phone can present the first interface through the screen. As shown in FIG. 8(b), taking the full screen mobile phone as an example, the mobile phone 107 presents the first interface through the screen 108.

Wherein, the mobile phone can display the positional relationship between the mobile phone coil and the charging socket coil by displaying the words “the mobile phone coil and the charging seat coil offset”; the words “slow charging of the mobile phone” are displayed to indicate the charging state of the mobile phone; “Please place the mobile phone in the position so that the phone coil and the charging socket are aligned” to remind the user that during the charging process, the user is advised to adjust the position of the mobile phone on the charging stand to ensure that the mobile phone is better charged. To save power consumption and time spent in the charging process. When the mobile phone coil and the charging seat coil are deviated, and the horizontal deviation distance of the center of the two coils is large, the mobile phone cannot be successfully charged, then the mobile phone can display the words “the mobile phone is not charged” to prompt the user that the mobile phone fails to be successfully charged. It should be noted that when the horizontal deviation distance is too large, since the mobile phone cannot detect the positional relationship between the two coils, the mobile phone cannot display the above content, that is, the mobile phone normally displays the interface currently accessed by the user.

It should be noted that the first interface shown in FIG. 8(a) and FIG. 8(b) is an exemplary presentation manner provided by the embodiment of the present application, and is not limited to the embodiment of the present application. For example, the mobile phone can also display a charging animation in a status bar displaying content such as time, network connection, etc., to prompt the current charging status of the mobile phone.

Compared with the prior art, in the case of additionally adding two metal sensors in the mobile phone, the embodiment of the present application can be based on the original mobile phone structure without adding additional components, according to the mobile phone and the charging stand. Or, when touched, the signal strength of the detection signal sent by the charging stand to the mobile phone, such as the PING signal, to determine the positional relationship between the mobile phone coil and the charging socket coil, that is, whether the mobile phone coil and the charging socket coil are in a bias or Counterpoint. In addition, since the mobile phone can obtain the value of the signal strength during the transmission of the detection signal, it is ensured that the mobile phone quickly presents the first interface to achieve the prompt effect.

Considering that when the mobile phone coil and the charging socket coil are in a biased position, the content presented by the first interface may prompt the user to adjust the placement position of the mobile phone. After the user adjusts the placement position of the mobile phone, the mobile phone coil has a certain probability that it is in alignment with the charging socket coil or is still in a bias position, then the mobile phone can present a second interface to ensure that the mobile phone coil and the charging socket coil are in the right direction. When the bit is located, the charging state of the mobile phone is prompted to prompt the user to not move the placement position of the mobile phone during the charging process of the mobile phone to ensure the continuity of the charging process; or to ensure that when the mobile phone coil and the charging seat coil are still in a biased position, Prompt the charging status of the phone so that the user can adjust the placement of the phone again.

In the embodiment of the present application, the value of the signal strength can be used to detect the initial alignment of the mobile phone and the charging stand, but after the wireless charging receiving end and the wireless charging transmitting end successfully communicate, the wireless charging transmitting end can stop. The transmission of the detection signal such as the PING signal, at this time, the wireless charging transmitter can transmit the power signal. For the mobile phone as the wireless charging receiving end, the signal strength of the power signal can still be determined continuously, and the voltage value obtained next cannot be used as the rectified voltage for calculating the signal strength due to the change of the transmitting power for the alignment detection. process. It should be noted that after the mobile phone is in contact with or close to the charging stand, the mobile phone can store the obtained initial voltage value into the register, and for the subsequent changed voltage value, although it can be obtained by analog-to-digital conversion, it can be controlled. The processor no longer further converts the resulting voltage value, so that no new signal strength is obtained, and the signal strength stored in the register is not refreshed. This means that the signal strength stored in the register does not change during the same charging process. Among them, the same charging process refers to the case that after the mobile phone and the charging stand shake hands successfully, the mobile phone does not appear to be powered down, that is, the mobile phone keeps charging during the process. In this way, even if the user adjusts the placement position of the mobile phone, the value of the signal strength recorded by the mobile phone does not change.

Therefore, in order to enable the re-alignment detection between the mobile phone and the charging cradle, in the embodiment of the present application, the aligning detection can be implemented by the operating frequency (Fop) of the power signal transmitted by the wireless charging transmitting end. Wherein, the operating frequency can be regarded as the transmission frequency of the power signal.

FIG. 9 is a schematic flowchart diagram of another exemplary wireless charging alignment detecting method provided by an embodiment of the present application, where the method includes S404 to S406.

S404. Receive a power signal sent by the charging base, and detect a transmission frequency of the power signal.

Wherein, when detecting the transmission frequency of the power signal, for the electronic device as the receiving end, the power signal of the electronic device is a stable power signal. For example, the power signal received by the electronic device is a stable power signal.

It should be noted that the detection signal and the power signal belong to different types of signals. In an implementation manner of the embodiment of the present application, the detection signal is a signal that is sent according to a certain time rule when the charging base is detected. When the electronic device touches or approaches the charging stand, the electronic device can receive the detection sent by the charging stand. signal. After the charging station completes the detecting process, the charging base sends a power signal to the electronic device, which means that the power signal can be used to implement the electronic device when the electronic device is not powered down. The signal that the device is charging. In an implementation manner, the transmitting end of the detecting signal and the power signal are both wireless charging transmitting ends of the charging stand.

Among them, the electronic device does not lose power, which means that the electronic device and the charging stand are still in a state of being touched or close. In the process of adjusting the placement position of the electronic device, if the electronic device is away from the charging stand and then approaches or touches the charging stand again, it can be regarded as power-off after the electronic device is powered off.

In an implementation manner of the embodiment of the present application, the frequency meter can have an output current of 100 mA to 300 mA at the wireless charging receiving end chip, for example, the output current of the chip at the wireless charging receiving end is At 150 mA, the transmission frequency of the power signal is detected. The output current exemplified above is a stable current that the processor controls the output of the charging chip. That is, when the output current of the wireless charging receiving end chip is 150 mA, the wireless charging receiving end chip of the electronic device can receive a stable power signal. It should be noted that the above output current is 150 mA, which is an exemplary implementation manner, and the output current can also take other values, and the output current is 150 mA as an example.

In the embodiment of the present application, when the output current of the wireless charging receiving end chip is too large, the value of the voltage value Vrect is reduced, thereby causing the electronic device to be unable to be successfully charged due to the voltage value being too small; When the output current of the terminal chip is too small, the charging chip does not have a lower current gear position, which also hinders the charging process. Therefore, the magnitude of the output current of the above charging chip depends on the value of the voltage value Vrect and the current gear of the charging chip.

It should be noted that, as shown in FIG. 4, since the rectified voltage obtained by the wireless charging receiving end chip 216 is constant, in order to ensure that the receiving power of the wireless charging receiving end chip 216 is constant, the charging chip can be controlled by the processor 201. The output of 217 is a constant current, such as 150 mA. Since the charging chip 217 is connected in series with the wireless charging receiving end chip 216, the current output by the wireless charging receiving end chip 216 is also a constant current. In the charging process of the electronic device, in the case where the receiving power of the electronic device is constant, that is, in the case where the receiving power of the wireless charging receiving end chip 216 is constant, the charging efficiency is negatively correlated with the transmitting power of the charging stand. That is, in the case where the charging efficiency is lower, that is, when the transmission power of the power signal transmitted by the charging cradle is large, the transmission frequency of the power signal transmitted by the charging cradle is lower; in the case of higher charging efficiency, that is, When the transmission power of the power signal transmitted by the charging cradle is small, the transmission frequency of the power signal transmitted by the charging cradle is higher. In the charging process of the electronic device, when the electronic device coil and the charging seat coil are aligned, the charging efficiency of the electronic device is high; when the electronic device coil and the charging seat coil are offset, the charging efficiency of the electronic device is low.

It can be seen that the electronic device can determine the positional relationship between the coil of the electronic device and the coil of the charging stand according to the magnitude of the transmitting frequency of the power signal when the electronic device receives the stable power signal. That is to say, in the case where the output current of the control charging chip 217 is constant, that is, in the case where the received power is constant, it is possible to ensure that the electronic device receives a stable power signal. The electronic device can determine the positional relationship between the coil of the electronic device and the coil of the charging stand according to the change in the frequency of the transmission frequency of the power signal.

For example, as shown in FIG. 10, in the embodiment of the present application, when the mobile phone coil and the charging base coil are aligned, the transmitting frequency takes a large value, and the maximum transmitting frequency can reach 146 kHz; the mobile phone coil and the charging seat coil are biased. When the distance between the center of the handset coil and the center of the charging socket coil is large, the value of the transmission frequency is small, and the minimum transmission frequency shown in FIG. 10 can reach 114 kHz.

It should be noted that when the transmission frequency is 146 kHz, since the transmission frequency is large, the transmission power of the charging cradle is small, which means that the coil of the electronic device and the cradle coil are aligned. When the transmission frequency is 114 kHz, since the transmission frequency is small, the transmission power of the charging cradle is large, which means that the coil of the electronic device and the charging cradle are offset.

S405. Determine a second positional relationship between the coil of the electronic device and the coil of the charging stand according to the magnitude relationship between the transmitting frequency of the power signal and the second threshold.

The second threshold is a preset threshold for measuring the size of the transmission frequency. In an implementation manner of the embodiment of the present application, the value of the second threshold may be preset to 125. It should be noted that the second threshold value may also be set to other values. In the embodiment of the present application, the second threshold value is 125 as an example.

In the embodiment of the present application, the S405 may be specifically implemented as: when the transmission frequency of the power signal is greater than or equal to the second threshold, determining that the second position relationship is the alignment between the coil of the electronic device and the charging socket; when the transmission frequency of the power signal is less than When the second threshold is determined, the second positional relationship is determined to be a deviation of the electronic device coil from the charging seat coil.

It should be noted that the second positional relationship and the first positional relationship are positional relationships between the electronic device coil and the charging seat coil at different times, and may include alignment or offset.

Taking FIG. 10 as an example, the size of the second threshold may be set to 125, that is, when the value of the transmission frequency is greater than or equal to 125 kHz, the coil of the mobile phone and the coil of the charging stand are in alignment; the value of the transmitting frequency is less than 125 thousand. At Hertz, the phone coil and the cradle coil are in a biased position. For example, in one implementation, when the value of the transmission frequency is 125, the corresponding two horizontal deviation distances may be the upper and lower limits of the horizontal deviation distance of the two coils, that is, the lower limit is the horizontal deviation distance is negative. 6 mm, the upper limit is the horizontal deviation distance of 8 mm.

It should be noted that the second threshold is used to determine whether the distance corresponding to the current value of the transmission frequency can ensure the alignment of the coil of the mobile phone and the charging socket according to the relationship between the transmission frequency and the second threshold. Thereby, the mobile phone is determined to determine the current charging status of the mobile phone, thereby determining what content needs to be presented to the user to inform the user of the current charging status of the mobile phone. The value of the second threshold is not limited to the above-exemplified case, and may be determined according to the performance of the mobile phone, the charging stand, and/or the charging condition currently required by the mobile phone, etc., where the setting method and value of the intensity threshold are not Limited.

S406. Display a second interface.

The second interface includes information corresponding to the second location relationship for prompting the charging status of the electronic device.

It should be noted that the second interface and the first interface are interfaces displayed by the electronic device at different times. In the embodiment of the present application, the display content of the first interface and the second interface may be identical, partially identical, or different, and the content presented by the first interface and the second interface is not limited herein. For example, the first interface is the interface shown in FIG. 8(b), and the second interface may be the interface shown in FIG. 8(a) or FIG. 8(b), which is not limited herein.

The mobile phone relies on the signal strength to realize the alignment detection of the mobile phone coil and the charging seat coil, and can only initially determine the positional relationship between the mobile phone coil and the charging seat coil after the initial placement, and cannot measure the subsequent adjustment of the mobile phone placement position, the mobile phone coil and the charging stand. The positional relationship between the coils. The mobile phone relies on the transmission power to realize the alignment detection of the mobile phone coil and the charging socket coil, and needs to be realized when the wireless charging receiving end of the mobile phone is in a stable state, but this is often delayed by a certain period of time than the detection time when detecting the signal strength, for example. , 700 milliseconds, resulting in a significant increase in the latency of the display interface of the mobile phone. Moreover, when in a critical state, only the signal strength is obtained and the value of the transmission power cannot be obtained. The critical state refers to a state in which the wireless charging receiving end chip is powered on and off, and a state in which the wireless charging receiving end chip is powered off to power-on, that is, a state in which the wireless charging receiving end chip is powered on and off. . In the embodiment of the present application, when the wireless charging receiving end chip is in a critical state, the wireless charging receiving end chip has a certain probability of powering down, and after the wireless charging receiving end chip is powered off, the mobile phone cannot successfully obtain the transmitting power. value. Since when the mobile phone is in a critical state, such as when the mobile phone is just powered on, due to the instability of the signal strength, there is a certain probability that the transmission frequency will not be detected when it is detected (for example, when the signal strength is less than 85, the transmission cannot be detected). Power, therefore, in an implementation manner of the embodiment of the present application, the mobile phone performs initial alignment detection by signal strength, and after the signal strength is stable (for example, the signal strength is greater than or equal to 85), the transmission power is performed twice. Three or more times of registration detection. It should be noted that after the mobile phone completes the initial alignment detection according to the signal strength, it is determined that the mobile phone coil and the charging socket coil are aligned, so that the alignment detection by the transmission frequency is not required.

It should be noted that, for the above-mentioned signal strength and the value of the transmission frequency, the internal device of the wireless charging receiving end chip can be used for detection, and can also be detected by the external device of the wireless charging receiving end chip, which is used for obtaining in the electronic device. The signal strength and the device for detecting the value of the transmission frequency are not limited.

The first and second thresholds mentioned above, the first and second distance thresholds, and the first to sixth deviation thresholds may all be set in advance, and the values and setting manners of the respective thresholds are not limited.

The embodiments of the present application may divide the functional modules of the electronic device according to the foregoing method embodiments. For example, each functional module may be divided according to each function, or two or more functions may be integrated into one processing module. The above integrated modules can be implemented in the form of hardware or in the form of software functional modules. It should be noted that the division of the module in the embodiment of the present application is schematic, and is only a logical function division, and the actual implementation may have another division manner.

FIG. 11 is a schematic structural diagram of an electronic device involved in the above embodiment. The electronic device 500 includes: a wireless charging receiving end unit 501 (the wireless charging receiving end unit 501 can be implemented as a wireless charging receiving end chip, such as the wireless charging receiving end chip 216 shown in FIG. 3 and FIG. 4), and a charging unit 502 ( The charging unit 502 can be implemented as a charging chip, such as the charging chip 217 shown in FIG. 3 and FIG. 4, and a processing unit 503 (the processing unit 503 can be implemented as a processor, such as the processor 201 shown in FIG. 3). And the display unit 504 (the display unit 504 can be the display screen 210 in FIG. 3, and can also be implemented as a display panel. For example, the display panel 212 shown in FIG. 3, the display unit 504 can be a touch display screen or a touch Display panel of the display). The wireless charging receiving end unit 501, the charging unit 502 and the display unit 504 are respectively connected to the processing unit 503, the wireless charging receiving end unit 501 is used as an input of the charging unit 502, and the charging unit 502 is used to supply power to the electronic device 500.

In an implementation manner of the embodiment of the present application, the processing unit 503 may send a control signal to the wireless charging receiving end unit 501 and the charging unit 502 to control the output current, voltage, and the like of the wireless charging receiving end unit 501 and the charging unit 502; The processing unit 503 can also send a control signal to the display unit 504 to control the display unit 504 to display the first interface, the second interface, and the like.

It should be noted that the charging unit 502 is used to supply power to the electronic device 500, and the charging unit 502 is used to supply power to the system and the battery of the electronic device 500 during the charging process of the electronic device 500. While in the non-charging process of the electronic device 500, the battery is powered by the system of the electronic device 500.

The wireless charging receiving end unit 501 is configured to support the electronic device 500 to receive the sounding signal, the power signal, etc., determine the signal strength of the sounding signal, and detect the received power signal to determine the transmitting frequency of the power signal (ie, the The operating frequency of the power signal). Then, the processing unit 503 determines the positional relationship between the coil of the electronic device 500 (ie, the electronic device coil, such as the mobile phone coil) and the charging socket coil according to the signal strength of the detection signal or the transmission frequency of the power signal.

In an implementation manner of the embodiment of the present application, the wireless charging receiving end unit 501 may include a control processing unit 5011 (the control processing subunit 5011 may be implemented as a control processor, such as the control processor 301 shown in FIG. 4), The memory unit 5012 (which may be implemented as a register, such as the register 302 shown in FIG. 4) and the analog-to-digital conversion unit 5013 (the analog-to-digital conversion unit 5013 may be implemented as an analog-to-digital converter, for example, as shown in FIG. The analog to digital converter 303) and the frequency detecting unit 5014 (which may be implemented as a frequency meter, such as the frequency meter 304 shown in FIG. 4).

The analog-to-digital conversion unit 5013 can convert the detection signal received by the wireless charging receiving end unit 501 through the analog signal (ie, the detection signal) and the digital signal to obtain a digital signal, that is, the analog signal is obtained by analog-to-digital conversion. And the rectified voltage after rectification. The rectified voltage is then converted by the control processing unit 5011 into the signal strength of the detected signal. So that the processing unit 503 can determine the first positional relationship between the coil of the electronic device 500 and the cradle coil according to the magnitude relationship between the signal strength and the first threshold.

The frequency detecting unit 5014 may be configured to detect a transmission frequency of the power signal received by the wireless charging receiving end unit 501 (ie, an operating frequency of the power signal), and then the processing unit 503 is configured according to a magnitude relationship between the transmitting frequency and the second threshold. A second positional relationship between the coil of the electronic device 500 and the cradle coil is determined.

It should be noted that the storage unit 5012 can be used to store the rectified voltage of the detection signal obtained by the analog-to-digital conversion unit 5013, the signal strength of the detection signal obtained by the control processing unit 5011 according to the rectified voltage, and the power signal detected by the frequency detecting unit 5014. At least one of the parameters such as the transmission frequency.

In an implementation manner of the embodiment of the present application, the processor 201 may also be a controller, such as a CPU, a general-purpose processor, a digital signal processor (DSP), and an application-specific integrated circuit (Application-Specific Integrated). Circuit, ASIC), Field Programmable Gate Array (FPGA) or other programmable logic device, transistor logic device, hardware component, or any combination thereof. It is possible to implement or carry out the various illustrative logical blocks, modules and circuits described in connection with the present disclosure. The processor may also be a combination of computing functions, for example, including one or more microprocessor combinations, a combination of a DSP and a microprocessor, and the like. The above transceiver can also be implemented as a transceiver circuit or a communication interface.

The steps of a method or algorithm described in connection with the present disclosure may be implemented in a hardware or may be implemented by a processor 201 executing software instructions. The software instructions can be composed of corresponding software modules, which can be stored in memory, flash memory, read only memory (ROM), Erasable Programmable ROM (EPROM), and electrically erasable. Programmable EPROM (EEPROM), registers, hard disk, removable hard disk, Compact Disc Read-Only Memory (CD-ROM) or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor to enable the processor to read information from, and write information to, the storage medium. Of course, the storage medium can also be an integral part of the processor. The processor and the storage medium may be deployed in the same device, or the processor and the storage medium may be deployed as separate components in different devices.

Embodiments of the present application provide a readable storage medium, including instructions. When the instruction is run on the electronic device, the electronic device is caused to perform the method described above.

An embodiment of the present application provides a computer program product, the computer program product comprising software code for performing the method described above.

The above is only a specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention. It should be covered by the scope of the present invention. Therefore, the scope of the invention should be determined by the scope of the appended claims.

Claims

A method for detecting a wireless charging, which is characterized in that the method is applied to an electronic device, and the method includes:

Receiving a detection signal sent by the charging cradle to determine a signal strength of the detection signal;

Determining, according to a magnitude relationship between a signal strength of the detection signal and a first threshold, a first positional relationship between the electronic device coil and the cradle coil, the first positional relationship including the electronic device coil Aligning or offsetting the coil of the charging stand;

Displaying a first interface, where the first interface includes information corresponding to the first location relationship for prompting charging status of the electronic device.
The method according to claim 1, wherein said determining a first between said electronic device coil and said charging socket coil according to a magnitude relationship between said signal strength of said detection signal and said first threshold Location relationship, including:

When the signal strength of the detection signal is greater than or equal to the first threshold, determining that the first positional relationship is that the electronic device coil is aligned with the charging socket coil, the electronic device coil and the charging seat The coil is aligned such that the distance between the center of the coil of the electronic device and the center of the cradle coil is less than or equal to the first distance threshold.
The method according to claim 1 or 2, wherein the determining between the electronic device coil and the charging socket coil is based on a magnitude relationship between a signal strength of the detection signal and a first threshold The first positional relationship includes:

Determining, when the signal strength of the detection signal is less than the first threshold, that the first positional relationship is that the electronic device coil is offset from the charging socket coil, and the electronic device coil is offset from the charging socket coil The distance between the center of the coil of the electronic device and the center of the cradle coil is greater than a second distance threshold.
The method according to any one of claims 1 to 3, further comprising:

Receiving a power signal sent by the charging base, detecting a transmission frequency of the power signal, wherein the power signal received by the electronic device is a stable power signal;

Determining, according to a magnitude relationship between a transmit frequency of the power signal and a second threshold, a second positional relationship between the electronic device coil and the cradle coil, the second positional relationship including the electronic device coil Aligning or offsetting the coil of the charging stand;

Displaying a second interface, where the second interface includes information corresponding to the second location relationship for prompting charging status of the electronic device.
The method according to claim 4, wherein the determining a second relationship between the electronic device coil and the charging socket coil according to a magnitude relationship between a transmission frequency of the power signal and a second threshold Location relationship, including:

Determining, when the transmission frequency of the power signal is greater than or equal to the second threshold, the second positional relationship is that the electronic device coil is aligned with the charging cradle, the electronic device coil and the charging cradle The coil is aligned such that the distance between the center of the coil of the electronic device and the center of the cradle coil is less than or equal to the first distance threshold.
The method according to claim 4 or 5, wherein the determining between the electronic device coil and the charging socket coil is based on a magnitude relationship between a transmission frequency of the power signal and a second threshold The second positional relationship includes:

When the transmission frequency of the power signal is less than the second threshold, determining that the second positional relationship is that the electronic device coil is offset from the charging socket coil, and the electronic device coil and the charging socket coil are biased The distance between the center of the coil of the electronic device and the center of the cradle coil is greater than a second distance threshold.
The method according to any one of claims 1 to 6, wherein when the electronic device coil is misaligned with the charging base coil, the information of the electronic device charging condition is that the electronic device is slowly charged. Or the electronic device is not charged.
The method according to any one of claims 1 to 7, wherein when the electronic device coil is aligned with the charging socket coil, the information of the electronic device charging condition is that the electronic device is normally charged. .
An electronic device, comprising: a wireless charging receiving end unit, a processing unit, and a display unit;

The wireless charging receiving end unit is configured to receive a detection signal sent by the charging base, and determine a signal strength of the detection signal;

The processing unit is configured to determine a first positional relationship between the electronic device coil and the charging socket coil according to a magnitude relationship between a signal strength of the detection signal and a first threshold, the first position The relationship includes aligning or offsetting the coil of the electronic device with the coil of the charging stand;

The display unit displays a first interface under the control of the processing unit, and the first interface includes information corresponding to the first location relationship for prompting charging status of the electronic device.
The electronic device according to claim 9, wherein the wireless charging receiving end unit comprises an analog to digital converting unit and a control processing unit;

The analog-to-digital conversion unit is configured to perform analog-to-digital conversion on the detection signal received by the wireless charging receiving end unit to obtain a rectified voltage of the detection signal;

The control processing unit is configured to determine a signal strength of the detection signal according to a rectified voltage of the detection signal.
The electronic device according to claim 9 or 10, wherein the processing unit is configured to:

Determining that the signal strength of the detection signal is greater than or equal to the first threshold, the first positional relationship is that the electronic device coil is aligned with the charging socket coil, and the electronic device coil and the charging socket coil pair The bit is a distance between a center of the coil of the electronic device and a center of the charging socket coil that is less than or equal to a first distance threshold.
The electronic device according to any one of claims 9 to 11, wherein the processing unit is configured to:

Determining that the signal strength of the detection signal is less than the first threshold, the first positional relationship is that the electronic device coil is offset from the charging seat coil, and the electronic device coil and the charging seat coil are offset The distance between the center of the coil of the electronic device and the center of the charging socket coil is greater than a second distance threshold.
The electronic device according to any one of claims 9 to 12, wherein the electronic device further comprises a charging unit, the processing unit controls the charging unit to cause the charging unit to output a steady current;

The wireless charging receiving end unit is configured to receive a power signal sent by the charging base, and detect a transmitting frequency of the power signal, wherein the power signal received by the wireless charging receiving end unit is a stable power signal;

The processing unit is configured to determine, according to a magnitude relationship between a transmit frequency of the power signal and a second threshold received by the wireless charging receiving end unit, between the electronic device coil and the charging socket coil a second positional relationship, the second positional relationship including the alignment or offset of the coil of the electronic device and the coil of the charging stand;

The display unit displays a second interface under the control of the processing unit, and the second interface includes information corresponding to the second location relationship for prompting charging status of the electronic device.
The electronic device according to claim 13, wherein the electronic device comprises a frequency detecting unit;

The frequency detecting unit is configured to detect a transmitting frequency of the power signal received by the wireless charging receiving end unit.
The electronic device according to claim 13 or 14, wherein the processing unit is configured to:

Determining that a transmission frequency of the power signal is greater than or equal to the second threshold, the second positional relationship is that the electronic device coil is aligned with the charging socket coil, and the electronic device coil and the charging socket coil pair The bit is a distance between a center of the coil of the electronic device and a center of the charging socket coil that is less than or equal to a first distance threshold.
The electronic device according to any one of claims 13 to 15, wherein the processing unit is configured to:

Determining that a transmission frequency of the power signal is less than the second threshold, the second positional relationship is that the electronic device coil is offset from the charging socket coil, and the electronic device coil and the charging socket coil are offset The distance between the center of the coil of the electronic device and the center of the charging socket coil is greater than a second distance threshold.
The electronic device according to any one of claims 9 to 16, wherein when the electronic device coil is offset from the charging base coil, the information of the charging condition of the electronic device charges the electronic device Slow or the electronic device is not charging.
The electronic device according to any one of claims 9 to 17, wherein when the electronic device coil is aligned with the charging socket coil, the information of the charging condition of the electronic device is normal for the electronic device Charging.
The electronic device according to any one of claims 13 to 16, wherein the steady current is 150 mA.
An electronic device comprising a display screen, a memory, one or more processors, a plurality of applications, and one or more programs; wherein the one or more programs are stored in the memory; The one or more processors, when executing the one or more programs, cause the electronic device to implement the method of any one of claims 1-8.
A readable storage medium, wherein the readable storage medium stores instructions for causing the electronic device to perform any of the above claims 1 to 8 when the instructions are run on an electronic device The method described.
A computer program product, characterized in that the computer program product comprises software code for performing the method of any of the preceding claims 1 to 8.