Wireless charging method, device, equipment, medium and product

Abstract

The invention provides a wireless charging method and device, equipment, a medium and a product. The method comprises the following steps: under the condition that a terminal is placed at a position corresponding to a wireless charging module, obtaining an induced electromotive force of a receiving coil of the terminal for each transmitting coil, and obtaining induced electromotive forces corresponding to a plurality of transmitting coils; according to the induced electromotive forces corresponding to the plurality of transmitting coils, determining a working coil meeting a preset condition from the plurality of transmitting coils; and controlling a working coil in the wireless charging module to wirelessly charge the terminal. The technical problem that the wireless charging efficiency of the terminal is low due to the fact that the transmitting coil of the wireless charging module is difficult to align with the receiving coil of the terminal in the prior art is solved.

Description

Technical Field

[0001] The present application belongs to the field of wireless charging technology, and in particular, relates to a wireless charging method, device, equipment, medium and product. Background Art

[0002] With the development of smart cars, it has become increasingly popular to install wireless charging devices for mobile phones in smart cars. The main principle of wireless charging is electromagnetic induction, which switches the magnetic flux intensity of the transmitting coil of the charging module at a high frequency, causing the magnetic flux passing through the receiving coil on the back of the mobile phone to continuously change, generating current for charging.

[0003] However, due to the different sizes of mobile phones, the installation position of the receiving coil inside the mobile phone is also different. The current in-car mobile phone wireless charging device cannot adapt to many models of mobile phones, which affects the charging efficiency and reduces the user experience. Summary of the invention

[0004] The embodiments of the present application provide a wireless charging method, device, equipment, medium, product and vehicle, which solve the technical problem in the related art that the wireless charging efficiency of the terminal is low because the transmitting coil of the wireless charging module is difficult to align with the receiving coil of the terminal.

[0005] In a first aspect, an embodiment of the present application provides a wireless charging method, which is applied to a wireless charging module, wherein the wireless charging module includes a plurality of transmitting coils, and the plurality of transmitting coils are arranged along a first direction. The method includes:

[0006] When the terminal is placed at a position corresponding to the wireless charging module, the induced electromotive force of the receiving coil of the terminal for each transmitting coil is obtained to obtain the induced electromotive force corresponding to the multiple transmitting coils;

[0007] According to the induced electromotive force corresponding to the multiple transmitting coils, a working coil that meets the preset conditions is determined from the multiple transmitting coils;

[0008] Control the working coil in the wireless charging module to wirelessly charge the terminal.

[0009] In a second aspect, an embodiment of the present application provides a wireless charging device, which is applied to a wireless charging module, and the device includes:

[0010] An acquisition module, used to acquire the induced electromotive force of the receiving coil of the terminal for each transmitting coil when the terminal is placed at a position corresponding to the wireless charging module, and obtain the induced electromotive force corresponding to the multiple transmitting coils;

[0011] A determination module, used to determine a working coil that meets a preset condition from a plurality of transmitting coils according to the induced electromotive forces corresponding to the plurality of transmitting coils;

[0012] The control module is used to control the working coil in the wireless charging module to wirelessly charge the terminal.

[0013] In a third aspect, an embodiment of the present application provides an electronic device, the device comprising:

[0014] A processor and a memory storing programs or instructions;

[0015] The above method is implemented when the processor executes the program or instruction.

[0016] In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium, on which a program or instruction is stored, and the program or instruction implements the above method when executed by a processor.

[0017] In a fifth aspect, an embodiment of the present application provides a computer program product. When instructions in the computer program product are executed by a processor of an electronic device, the electronic device executes the above method.

[0018] In this embodiment, by obtaining the induced electromotive force of the receiving coil of the terminal for each transmitting coil, and then determining the working coil that meets the preset conditions based on the induced electromotive force, and finally controlling the working coil to wirelessly charge the terminal, by using the induced electromotive force to determine the working coil, the transmitting coil with the highest coupling degree with the receiving coil position can be screened out, and the transmitting coil and the receiving coil can be aligned in the first direction, thereby maximizing the wireless charging efficiency, which solves the technical problem in the related art that the transmitting coil of the wireless charging module is difficult to align with the receiving coil of the terminal, resulting in low wireless charging efficiency of the terminal. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solution of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0020] Figure 1 is a flow chart of a wireless charging method applied to a wireless charging module according to an embodiment of the present invention;

[0021] Figure 2 is a structural schematic diagram of a coil arrangement according to an embodiment of the present invention;

[0022] Figure 3 is a schematic diagram of the structure of a wireless charging panel groove according to an embodiment of the present invention;

[0023] Figure 4 is a structural schematic diagram of a control system according to an embodiment of the present invention;

[0024] Figure 5 is a schematic cross-sectional structural diagram of a wireless charging module according to an embodiment of the present invention;

[0025] Figure 6 is a structural block diagram of a wireless charging device applied to a wireless charging module according to an embodiment of the present invention;

[0026] Figure 7 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.

[0027] Reference numerals:

[0028] Transmitting coil A201, transmitting coil B202, transmitting coil C203; wireless charging panel groove 301; user terminal 401; wireless charging module 402, wireless charging micro control unit 403, transmitting coil module 404, stepping motor module 405; smart cockpit domain controller 406; central control large screen 407; receiving coil 501. DETAILED DESCRIPTION

[0029] The features and exemplary embodiments of various aspects of the present application will be described in detail below. In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only intended to explain the present application, rather than to limit the present application. For those skilled in the art, the present application can be implemented without the need for some of these specific details. The following description of the embodiments is only to provide a better understanding of the present application by illustrating the examples of the present application.

[0030] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "include..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0031] In addition, it should be noted that the acquisition, storage, use, and processing of data in the embodiments of this application are in compliance with the relevant provisions of national laws and regulations. It should be noted that in the embodiments of this application, some existing solutions in the industry such as certain software, components, and models may be mentioned, and they should be considered as exemplary. Their purpose is only to illustrate the feasibility of the implementation of the technical solution of this application, but it does not mean that the applicant has or will necessarily use the solution.

[0032] In order to solve the problems of the prior art, an embodiment of the present application provides a wireless charging method, which can be applied in a scenario where a vehicle is provided with a wireless charging module, and the wireless charging module is used to wirelessly charge a mobile terminal. Figure 1 is a flow chart of a wireless charging method applied to a wireless charging module according to an embodiment of the present invention. Figure 1 As shown, the wireless charging method may include the following steps:

[0033] S110, when the terminal is placed at a position corresponding to the wireless charging module, obtaining the induced electromotive force of the receiving coil of the terminal for each transmitting coil, and obtaining the induced electromotive forces corresponding to the multiple transmitting coils.

[0034] In this embodiment, the wireless charging module may include a plurality of transmitting coils, for example, Figure 2 is a schematic diagram of a coil arrangement according to an embodiment of the present invention. Figure 2 As shown, the wireless charging module may include a transmitting coil A201, a transmitting coil B202, and a transmitting coil C203; the transmitting coil A201, the transmitting coil B202, and the transmitting coil C203 may be arranged in combination along a first direction, and the first direction may be the Y-axis direction of a preset coordinate system.

[0035] In this embodiment, the terminal may be a mobile smart device that supports wireless charging, for example, including a mobile phone, a smart watch, a headset, etc.; the position corresponding to the wireless charging module may be a wireless charging panel groove of the wireless charging module, and the wireless charging panel groove may be used to place terminals of various sizes; for example, Figure 3 is a schematic diagram of the structure of the groove of the wireless charging panel according to an embodiment of the present invention. Figure 3 As shown, the wireless charging panel groove 301 minimizes the mobile phone placement limit area while being compatible with all current large-size mobile phones with wireless charging function. In this way, the placed mobile phone can be prevented from being tilted too much. The wireless charging panel groove 301 can also be set to be tilted upward at an angle of 35 degrees, so that the mobile phone placed on it can naturally slide down to the bottom supporting surface, and at the same time, it can prevent the mobile phone from sliding forward or flying out due to large displacement due to vehicle starting and stopping.

[0036] In this embodiment, when the terminal is placed at the position corresponding to the wireless charging module, the wireless charging module can control each transmitting coil to transmit a magnetic field based on a preset frequency, thereby causing the magnetic flux of the receiving coil of the terminal to change. Since the relative position of each transmitting coil and the receiving coil of the terminal is different, the magnitude of the change in the magnetic flux of the receiving coil of the terminal is also different, and therefore the magnitude of the induced electromotive force corresponding to each transmitting coil is also different.

[0037] S120, determining a working coil that meets a preset condition from the multiple transmitting coils according to the induced electromotive forces corresponding to the multiple transmitting coils.

[0038] In S120, since the multiple transmitting coils are fixedly arranged in the first direction and cannot move up and down, the transmitting coil with the highest position coupling with the receiving coil can be determined as the working coil to improve the efficiency of the terminal wireless charging. The position coupling degree can be understood as the degree of center alignment between the transmitting coil and the receiving coil.

[0039] It can be understood that the position coupling degree is positively correlated with the induced electromotive force. The higher the position coupling degree between the transmitting coil and the receiving coil, the greater the induced electromotive force of the receiving coil. The preset condition can be set according to the number of working coils.

[0040] S130, controlling the working coil in the wireless charging module to wirelessly charge the terminal.

[0041] In this embodiment, when the working coil in the wireless charging module is determined, it can be determined that the working coil of the wireless charging module is aligned with the receiving coil of the terminal in the first direction, and the wireless charging module can be controlled to wirelessly charge the terminal.

[0042] In an embodiment of the present application, by obtaining the induced electromotive force of the receiving coil of the terminal for each transmitting coil, and then determining the working coil that meets the preset conditions based on the induced electromotive force, and controlling the working coil to wirelessly charge the terminal, by using the induced electromotive force to screen and determine the working coil, the transmitting coil with the highest coupling degree with the receiving coil position can be screened out, and the transmitting coil and the receiving coil can be aligned in the first direction, thereby maximizing the wireless charging efficiency, and solving the technical problem in the related art that the transmitting coil of the wireless charging module and the receiving coil of the terminal are difficult to align, resulting in low wireless charging efficiency of the terminal.

[0043] In some embodiments, according to the induced electromotive force corresponding to the multiple transmitting coils, determining a working coil that meets the preset conditions from the multiple transmitting coils includes:

[0044] From among the multiple transmitting coils, determine the transmitting coil with the largest corresponding induced electromotive force as the working coil.

[0045] In this embodiment, when the number of working coils is set to one, the transmitting coil with the largest corresponding induced electromotive force can be determined as the working coil from multiple transmitting coils, so that the efficiency of terminal wireless charging can be relatively highest.

[0046] In addition, the preset conditions may also include further limitations on the working coil, that is, the working coil is not only the transmitting coil with the largest corresponding induced electromotive force, but the induced electromotive force corresponding to the maximum working frequency of the working coil should also be higher than the charging threshold. The charging threshold can be set according to the minimum value of the induced electromotive force that can charge the terminal.

[0047] When the induced electromotive force corresponding to the maximum working frequency of the transmitting coil with the largest induced electromotive force is higher than the charging threshold, the transmitting coil is determined to be the working coil.

[0048] In this way, by selecting the transmitting coil with the largest induced electromotive force as the working coil and ensuring that its induced electromotive force at the maximum operating frequency is higher than the charging threshold, the wireless charging efficiency is maximized and the effectiveness of wireless charging is ensured.

[0049] In some embodiments, according to the induced electromotive force corresponding to the multiple transmitting coils, determining a working coil that meets the preset conditions from the multiple transmitting coils includes:

[0050] From a plurality of transmitting coils, two transmitting coils which are ranked first and adjacent to each other in the order of corresponding induced electromotive force from large to small are determined as working coils.

[0051] In this embodiment, when two working coils are set, it can be understood that selecting a corresponding transmitting coil with a large induced electromotive force can ensure that the wireless charging process has a higher energy transmission efficiency; at the same time, it is easier for adjacent transmitting coils to achieve coordinated work between coils than other solutions. Therefore, from multiple transmitting coils, two transmitting coils that are ranked first and adjacent in the order of corresponding induced electromotive force from large to small can be determined as working coils.

[0052] For example, two adjacent transmitting coils may be transmitting coil A and transmitting coil B, or transmitting coil B and transmitting coil C.

[0053] In this way, by selecting two adjacent transmitting coils with high induced electromotive force as working coils, a high wireless charging efficiency is ensured and the coordinated work between the coils is facilitated, thereby improving the overall wireless charging performance and effect.

[0054] In some embodiments, controlling the working coil in the wireless charging module to wirelessly charge the terminal includes:

[0055] According to a preset frequency modulation strategy table, determining the induced electromotive force corresponding to each frequency modulation strategy, wherein the preset frequency modulation strategy table includes multiple frequency modulation strategies, and different frequency modulation strategies have different frequency duty cycle combinations of the working coils, and the frequency duty cycle combination includes the frequency duty cycles corresponding to the two transmitting coils in the working coil;

[0056] Determine the frequency modulation strategy with the largest corresponding induced electromotive force as the target frequency modulation strategy;

[0057] The working coil is controlled to wirelessly charge the terminal according to the target frequency modulation strategy.

[0058] In this embodiment, since the two transmitting coils may cause interference between the magnetic fields when working at the same time, which will not only increase the charging energy consumption but also reduce the charging efficiency, the frequency duty cycle of the two transmitting coils can be adjusted through a preset frequency modulation strategy to achieve the coordinated operation of the two transmitting coils.

[0059] For example, the preset frequency modulation strategy table can be shown in the following table: The preset frequency modulation strategy table includes frequency modulation strategies one to ten, and the frequency duty cycle combination of the working coil in each frequency modulation strategy is different. For example, the frequency modulation strategy two of the AB coordinated frequency modulation scheme can be understood as the working coils are the transmitting coil A and the transmitting coil B. Strategy two means that in the AB coordinated frequency modulation scheme, the frequency duty cycles of the transmitting coil A and the transmitting coil B are set to 75% and 25% respectively. That is, in the wireless charging process, the transmitting coil A will bear the main energy transmission task, and its working time accounts for 75% of the entire charging cycle, while the working time of the transmitting coil B accounts for 25% of the entire charging cycle.

[0060] AB coordinated frequency modulation solution <![CDATA[Q A Duty Cycle]]> <![CDATA[Q B Duty Cycle]]> Strategy 1 100％ 0％ Strategy 2 75％ 25％ Strategy Three 50％ 50％ Strategy 4 25％ 75％ Strategy Five 0％ 100％ BC coordinated frequency modulation solution <![CDATA[Q B Duty Cycle]]> <![CDATA[Q C Duty Cycle]]> Strategy 6 100％ 0％ Strategy 7 75％ 25％ Strategy 8 50％ 50％ Strategy Nine 25％ 75％ Strategy 10 0％ 100％

[0061] In this way, by presetting the frequency modulation strategy table and selecting the optimal frequency modulation strategy according to the magnitude of the induced electromotive force, the collaborative work of the transmitting coil during the wireless charging process is achieved. This not only significantly improves the efficiency and stability of wireless charging, reduces energy consumption, but also improves the user experience and system adaptability. Through intelligent frequency modulation control, the wireless charging system can automatically adjust to the optimal working state, providing users with a more convenient and efficient charging experience.

[0062] In some embodiments, controlling the working coil in the wireless charging module to wirelessly charge the terminal includes:

[0063] Monitor the power and temperature of the terminal;

[0064] Determine the working frequency of the working coil according to the power and temperature of the terminal;

[0065] Control the working coil in the wireless charging module to wirelessly charge the terminal at the working frequency.

[0066] In this embodiment, in order to improve the charging safety of the terminal and protect the battery life at the same time, the operating frequency of the working coil at the corresponding power and temperature of the terminal can be found according to the charging protection protocol of the terminal, and the operating frequency can be dynamically adjusted; for example, the operating frequency can be 110KHZ to 150KHZ.

[0067] In this way, by monitoring the terminal power and temperature and dynamically adjusting the wireless charging operating frequency, it not only improves charging safety, but also effectively protects battery life and ensures the efficiency and stability of the wireless charging process.

[0068] In some embodiments, after acquiring the induced electromotive force of the receiving coil of the terminal for each transmitting coil and obtaining the induced electromotive force corresponding to the multiple transmitting coils, the method further includes:

[0069] When there is no corresponding working coil whose induced electromotive force meets the preset conditions among multiple transmitting coils, adjustment information is sent to the user, and the adjustment information is used to inform the user to adjust the position of the terminal.

[0070] In this embodiment, the preset condition can be set as: the maximum induced electromotive force E max Less than the first preset threshold value; Maximum induced electromotive force E max To control the transmitting coil with the largest induced electromotive force at the current time, the magnetic field is emitted according to the maximum operating frequency, and the induced electromotive force E of the receiving coil is recorded. max The first preset threshold is set according to the minimum value of the induced electromotive force that can charge the terminal when the transmitting coil is working.

[0071] It can be understood that when the maximum induced electromotive force E max When it is less than the first preset threshold, the transmitting coil with the highest coupling degree with the receiving coil position cannot charge the terminal even when working at maximum power. Therefore, it can be determined that the terminal is not placed in the charging position of the wireless charging module, and the wireless charging module cannot charge the terminal. In this case, adjustment information can be sent to the user to inform the user to adjust the position of the terminal.

[0072] For example, Figure 4 is a schematic diagram of a control system according to an embodiment of the present invention. Figure 4As shown, the control system includes a wireless charging module 402, a smart cockpit domain controller 406 and a central control large screen 407. The wireless charging module 402 includes a wireless charging micro control unit 403, a transmitting coil module 404 (transmitting coil) and a stepper motor module 405 (motor). The user puts the terminal 401 into the wireless charging module 402 for wireless charging. If the terminal 401 cannot be effectively charged, a Can signal can be sent to the user through the controller area network (Controller Area Network, Can) bus. The Can signal can carry notification information to notify the smart cockpit domain controller 406 and the central control large screen 407 to remind the user in text and voice that the terminal 401 is not placed properly and please put it right again.

[0073] In some embodiments, the wireless charging module further includes a motor, and the plurality of transmitting coils can be moved along a second direction driven by the motor, the second direction being a direction perpendicular to the first direction, and controlling the working coil in the wireless charging module to wirelessly charge the terminal includes:

[0074] Obtaining the induced electromotive force of the receiving coil of the terminal;

[0075] Determine the center coincidence rate of the working coil and the receiving coil according to the induced electromotive force and the preset first threshold value;

[0076] When the center overlap ratio is within the calibration threshold range, controlling the motor to drive the working coil to move to the target position in the second direction, and the center overlap ratio of the target position is greater than the maximum value of the calibration threshold range;

[0077] Control the working coil in the wireless charging module to wirelessly charge the terminal at the target location.

[0078] In this embodiment, the preset first threshold value can be set according to the minimum value of the induced electromotive force that can charge the terminal when the center point of the receiving coil is located on the center line of the working coil in the second direction.

[0079] For example, the calculation formula of the center overlap rate may be P=E1 / E, wherein P is the center overlap rate, E1 is the induced electromotive force, and E is a preset first threshold.

[0080] It can be understood that the center overlap rate can be used to characterize the degree of alignment between the center of the working coil and the center of the receiving coil. The higher the center overlap rate, the higher the energy conversion efficiency of wireless charging.

[0081] In this embodiment, the calibration threshold range is used to represent that when the center overlap rate is within this range, the wireless charging module can wirelessly charge the terminal, but the efficiency of wireless charging is low, and the working coil and the receiving coil need to be further aligned to improve the wireless charging efficiency; for example, the calibration threshold range can be [70%, 95%].

[0082] In this embodiment, when the center overlap rate is within the calibration threshold range, the motor can be controlled to drive the transmitting coil to move to the target position in the second direction, so that the working coil and the receiving coil are aligned as much as possible to improve the wireless charging efficiency; wherein, the motor can be a stepper motor, and the stepper motor is controlled by transmitting a pulse signal to realize the motor driving the transmitting coil to move, and the second direction can be the X-axis direction of the preset coordinate system.

[0083] In this embodiment, when the working coil is at the target position, it can be determined that the working coil of the wireless charging module is aligned with the receiving coil of the terminal in the second direction, and the wireless charging module can be controlled to perform wireless charging on the terminal.

[0084] In order to facilitate understanding of the solutions of the above embodiments, Figure 5 is a schematic cross-sectional structure diagram of a wireless charging module according to an embodiment of the present invention. Figure 5 As shown, the wireless charging module includes a transmitting coil A201, a transmitting coil A202, a transmitting coil A203 and a wireless charging panel groove 301; a receiving coil 501 is installed inside the terminal 401 and is placed in the wireless charging panel groove 301 for charging.

[0085] Figure 6 A schematic structural diagram of a wireless charging device applied to a wireless charging module provided in another embodiment of the present application is shown. For ease of explanation, only the parts related to the embodiment of the present application are shown.

[0086] Reference Figure 6 , the wireless charging device 600 may include:

[0087] An acquisition module 601 is used to acquire the induced electromotive force of the receiving coil of the terminal for each transmitting coil when the terminal is placed at a position corresponding to the wireless charging module, so as to obtain the induced electromotive force corresponding to the multiple transmitting coils;

[0088] A determination module 602 is used to determine a working coil that meets a preset condition from a plurality of transmitting coils according to the induced electromotive forces corresponding to the plurality of transmitting coils;

[0089] The control module 603 is used to control the working coil in the wireless charging module to wirelessly charge the terminal.

[0090] In some embodiments, the determination module 602 may include the following units:

[0091] The determination unit is used to determine, from among the multiple transmitting coils, a transmitting coil with the largest corresponding induced electromotive force as a working coil.

[0092] In some embodiments, the determination module 602 may include the following units:

[0093] The determination unit is further used to determine, from among the multiple transmitting coils, two transmitting coils that are ranked first and adjacent to each other in the order of the corresponding induced electromotive force from large to small as working coils.

[0094] In some embodiments, the control module 603 may include the following units:

[0095] A determination unit, configured to determine the induced electromotive force corresponding to each frequency modulation strategy according to a preset frequency modulation strategy table, wherein the preset frequency modulation strategy table includes a plurality of frequency modulation strategies, and different frequency modulation strategies have different frequency duty cycle combinations of the working coils, and the frequency duty cycle combination includes the frequency duty cycles corresponding to the two transmitting coils in the working coil;

[0096] The determination unit is further used to determine the frequency modulation strategy with the largest corresponding induced electromotive force as the target frequency modulation strategy;

[0097] The control unit is used to control the working coil to wirelessly charge the terminal according to the target frequency modulation strategy.

[0098] In some embodiments, the control module 603 may include the following units:

[0099] A monitoring unit, used to monitor the power and temperature of the terminal;

[0100] A determination unit, used to determine the working frequency of the working coil according to the power and temperature of the terminal;

[0101] The control unit is used to control the working coil in the wireless charging module to wirelessly charge the terminal at the working frequency.

[0102] In some embodiments, the wireless charging device 600 may include the following modules:

[0103] The sending module is used to obtain the induced electromotive force of the receiving coil of the terminal for each transmitting coil, and after obtaining the induced electromotive force corresponding to multiple transmitting coils, if there is no working coil whose corresponding induced electromotive force meets the preset conditions among the multiple transmitting coils, send adjustment information to the user, and the adjustment information is used to inform the user to adjust the position of the terminal.

[0104] In some embodiments, the control module 603 may include the following units:

[0105] An acquisition unit, used to acquire the induced electromotive force of the receiving coil of the terminal;

[0106] a determining unit, configured to determine a center overlap rate between the working coil and the receiving coil according to the induced electromotive force and a preset first threshold;

[0107] a control unit, configured to control the motor to drive the working coil to move to a target position in the second direction when the center overlap ratio is within a calibration threshold range, and the center overlap ratio of the target position is greater than a maximum value of the calibration threshold range;

[0108] The control unit is also used to control the working coil in the wireless charging module to wirelessly charge the terminal at a target position.

[0109] It should be noted that the information interaction, execution process, etc. between the above-mentioned devices / units are based on the same concept as the method embodiment of the present application, and are devices corresponding to the above-mentioned wireless charging method. All implementation methods in the above-mentioned method embodiment are applicable to the embodiment of the device. Its specific functions and technical effects brought about can be found in the method embodiment part, which will not be repeated here.

[0110] The technicians in the relevant field can clearly understand that for the convenience and simplicity of description, only the division of the above-mentioned functional units and modules is used as an example for illustration. In practical applications, the above-mentioned function allocation can be completed by different functional units and modules as needed, that is, the internal structure of the device can be divided into different functional units or modules to complete all or part of the functions described above. The functional units and modules in the embodiment can be integrated in a processing unit, or each unit can exist physically separately, or two or more units can be integrated in one unit. The above-mentioned integrated unit can be implemented in the form of hardware or in the form of software functional units. In addition, the specific names of the functional units and modules are only for the convenience of distinguishing each other, and are not used to limit the scope of protection of this application. The specific working process of the units and modules in the above-mentioned system can refer to the corresponding process in the aforementioned method embodiment, which will not be repeated here.

[0111] Figure 7 is a schematic diagram of the structure of an electronic device according to an embodiment of the present invention. Figure 7 As shown:

[0112] The device may include a processor 701 and a memory 702 storing programs or instructions.

[0113] When the processor 701 executes the program, the steps in any of the above method embodiments are implemented.

[0114] Exemplarily, the program may be divided into one or more modules / units, one or more modules / units are stored in the memory 702 and executed by the processor 701 to complete the present application. One or more modules / units may be a series of program instruction segments capable of completing a specific function, and the instruction segments are used to describe the execution process of the program in the device.

[0115] Specifically, the processor 701 may include a central processing unit (CPU), or an application specific integrated circuit (ASIC), or may be configured to implement one or more integrated circuits of the embodiments of the present application.

[0116] The memory 702 may include a large capacity memory for data or instructions. By way of example and not limitation, the memory 702 may include a hard disk drive (HDD), a floppy disk drive, a flash memory, an optical disk, a magneto-optical disk, a magnetic tape, or a universal serial bus (USB) drive or a combination of two or more of these. In appropriate cases, the memory 702 may include a removable or non-removable (or fixed) medium. In appropriate cases, the memory 702 may be inside or outside the integrated gateway disaster recovery device. In a specific embodiment, the memory 702 is a non-volatile solid-state memory.

[0117] The memory may include read-only memory (ROM), random access memory (RAM), magnetic disk storage media devices, optical storage media devices, flash memory devices, electrical, optical or other physical / tangible memory storage devices. Thus, typically, the memory includes one or more tangible (non-transitory) computer-readable storage media (e.g., memory devices) encoded with software including computer-executable instructions, and when the software is executed (e.g., by one or more processors), it is operable to perform the operations described with reference to the method according to an aspect of the present disclosure.

[0118] The processor 701 implements any one of the methods in the above embodiments by reading and executing the program or instruction stored in the memory 702 .

[0119] In one example, the electronic device may further include a communication interface 703 and a bus 704. The processor 701, the memory 702, and the communication interface 703 are connected via the bus 704 and communicate with each other.

[0120] The communication interface 703 is mainly used to implement communication between various modules, devices, units and / or equipment in the embodiments of the present application.

[0121] Bus 704 includes hardware, software or both, and the parts of online data flow billing equipment are coupled to each other. For example, but not limitation, bus may include accelerated graphics port (AGP) or other graphics bus, enhanced industrial standard architecture (EISA) bus, front-end bus (FSB), hypertransport (HT) interconnection, industrial standard architecture (ISA) bus, infinite bandwidth interconnection, low pin count (LPC) bus, memory bus, micro channel architecture (MCA) bus, peripheral component interconnection (PCI) bus, PCI-Express (PCI-X) bus, serial advanced technology attachment (SATA) bus, video electronics standard association local (VLB) bus or other suitable bus or two or more of these combinations. In appropriate cases, bus 704 may include one or more buses. Although the present application embodiment describes and shows a specific bus, the present application considers any suitable bus or interconnection.

[0122] In addition, in combination with the method in the above embodiment, the embodiment of the present application may provide a computer-readable storage medium for implementation. The computer-readable storage medium stores a program or instruction; when the program or instruction is executed by a processor, any one of the methods in the above embodiment is implemented. The computer-readable storage medium can be read by a machine such as a computer.

[0123] An embodiment of the present application further provides a chip, which includes a processor and a communication interface, wherein the communication interface and the processor are coupled, and the processor is used to run programs or instructions to implement the various processes of the above-mentioned method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0124] It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

[0125] An embodiment of the present application provides a computer program product, which is stored in a computer-readable storage medium. The program product is executed by at least one processor to implement the various processes of the above-mentioned method embodiment and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0126] It should be clear that the present application is not limited to the specific configuration and processing described above and shown in the figures. For the sake of simplicity, a detailed description of the known method is omitted here. In the above embodiments, several specific steps are described and shown as examples. However, the method process of the present application is not limited to the specific steps described and shown, and those skilled in the art can make various changes, modifications and additions, or change the order between the steps after understanding the spirit of the present application.

[0127] The functional modules shown in the above block diagram can be implemented as hardware, software, firmware or their combination. When implemented in hardware, it can be, for example, an electronic circuit, an application specific integrated circuit (ASIC), suitable firmware, a plug-in, a function card, etc. When implemented in software, the elements of the present application are programs or code segments that are used to perform the required tasks. Programs or code segments can be stored in machine-readable media, or transmitted on a transmission medium or a communication link by a data signal carried in a carrier wave. "Machine-readable media" can include any medium that can store or transmit information. Examples of machine-readable media include electronic circuits, semiconductor memory devices, ROM, flash memory, erasable ROM (EROM), floppy disks, CD-ROMs, optical disks, hard disks, optical fiber media, radio frequency (RF) links, etc. Code segments can be downloaded via computer grids such as the Internet, intranets, etc.

[0128] It should also be noted that the exemplary embodiments mentioned in this application describe some methods or systems based on a series of steps or devices. However, this application is not limited to the order of the above steps, that is, the steps can be performed in the order mentioned in the embodiment, or in a different order from the embodiment, or several steps can be performed simultaneously.

[0129] Aspects of the present disclosure are described above with reference to the flowchart and / or block diagram of the method, device (system) and program product according to the embodiment of the present disclosure. It should be understood that each box in the flowchart and / or block diagram and the combination of each box in the flowchart and / or block diagram can be implemented by a computer program or instruction. These programs or instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device to produce a machine so that these instructions executed by the processor of the computer or other programmable data processing device enable the implementation of the function / action specified in one or more boxes of the flowchart and / or block diagram. Such a processor can be, but is not limited to, a general-purpose processor, a special-purpose processor, a special application processor, or a field programmable logic circuit. It can also be understood that each box in the block diagram and / or flowchart and the combination of boxes in the block diagram and / or flowchart can also be implemented by dedicated hardware that performs a specified function or action, or can be implemented by a combination of dedicated hardware and computer instructions.

[0130] The above are only specific implementation methods of the present application. Those skilled in the art can clearly understand that for the convenience and simplicity of description, the specific working processes of the systems, modules and units described above can refer to the corresponding processes in the aforementioned method embodiments, and will not be repeated here. It should be understood that the protection scope of the present application is not limited to this. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed in this application, and these modifications or replacements should be included in the protection scope of this application.

Claims

1. A wireless charging method, characterized in that: Applied to a wireless charging module, the wireless charging module includes a plurality of transmitting coils, and the plurality of transmitting coils are arranged along a first direction. The method includes: When the terminal is placed at a position corresponding to the wireless charging module, obtaining the induced electromotive force of the receiving coil of the terminal for each transmitting coil, and obtaining the induced electromotive force corresponding to the multiple transmitting coils; Determining a working coil that meets a preset condition from the multiple transmitting coils according to the induced electromotive force corresponding to the multiple transmitting coils; Control the working coil in the wireless charging module to wirelessly charge the terminal.

2. The method according to claim 1, characterized in that The step of determining a working coil that meets a preset condition from the plurality of transmitting coils according to the induced electromotive forces corresponding to the plurality of transmitting coils comprises: From the multiple transmitting coils, determine the transmitting coil with the largest corresponding induced electromotive force as the working coil.

3. The method according to claim 1, characterized in that: The step of determining a working coil that meets a preset condition from the plurality of transmitting coils according to the induced electromotive forces corresponding to the plurality of transmitting coils comprises: From the multiple transmitting coils, two transmitting coils that are ranked first and adjacent to each other in the order of corresponding induced electromotive force from large to small are determined as the working coils.

4. The method according to claim 3, characterized in that: The controlling the working coil in the wireless charging module to wirelessly charge the terminal includes: According to a preset frequency modulation strategy table, determining the induced electromotive force corresponding to each frequency modulation strategy, wherein the preset frequency modulation strategy table includes multiple frequency modulation strategies, and the frequency duty cycle combinations of the working coils in different frequency modulation strategies are different, and the frequency duty cycle combinations include the frequency duty cycles corresponding to the two transmitting coils in the working coil; Determine the frequency modulation strategy with the largest corresponding induced electromotive force as the target frequency modulation strategy; The working coil is controlled to wirelessly charge the terminal according to the target frequency modulation strategy.

5. The method according to claim 1, characterized in that The controlling the working coil in the wireless charging module to wirelessly charge the terminal includes: monitoring the power and temperature of the terminal; Determining the working frequency of the working coil according to the power and temperature of the terminal; Control the working coil in the wireless charging module to wirelessly charge the terminal at the working frequency.

6. The method according to claim 1, characterized in that After acquiring the induced electromotive force of the receiving coil of the terminal for each transmitting coil to obtain the induced electromotive force corresponding to the multiple transmitting coils, the method further includes: When there is no working coil whose corresponding induced electromotive force meets a preset condition among the multiple transmitting coils, adjustment information is sent to the user, where the adjustment information is used to inform the user to adjust the position of the terminal.

7. The method according to claim 1, characterized in that The wireless charging module further includes a motor, and the plurality of transmitting coils can be moved along a second direction driven by the motor, where the second direction is a direction perpendicular to the first direction, and the controlling the working coils in the wireless charging module to wirelessly charge the terminal includes: Obtaining the induced electromotive force of the receiving coil of the terminal; Determining the center overlap rate of the working coil and the receiving coil according to the induced electromotive force and a preset first threshold; When the center overlap ratio is within a calibration threshold range, controlling the motor to drive the working coil to move to a target position in the second direction, the center overlap ratio of the target position being greater than a maximum value of the calibration threshold range; The working coil in the wireless charging module is controlled to wirelessly charge the terminal at the target position.

8. A wireless charging device, characterized in that: Applied to a wireless charging module, the device comprises: An acquisition module, configured to acquire the induced electromotive force of the receiving coil of the terminal for each transmitting coil when the terminal is placed at a position corresponding to the wireless charging module, so as to obtain the induced electromotive force corresponding to the multiple transmitting coils; A determination module, configured to determine a working coil that meets a preset condition from among the plurality of transmitting coils according to the induced electromotive forces corresponding to the plurality of transmitting coils; The control module is used to control the working coil in the wireless charging module to wirelessly charge the terminal.

9. An electronic device, characterized in that: The device comprises: a processor and a memory storing computer program instructions; When the processor executes the computer program instructions, the method according to any one of claims 1 to 7 is implemented.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer program instructions, and when the computer program instructions are executed by a processor, the method according to any one of claims 1 to 7 is implemented.

11. A computer program product, characterized in that When the instructions in the computer program product are executed by a processor of an electronic device, the electronic device executes the method according to any one of claims 1 to 7.

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