A wireless charging method, device and electronic device

Abstract

The present application discloses a wireless charging method, apparatus and electronic device, belonging to the technical field of wireless charging. The wireless charging method is applied to a wireless charging device, and the wireless charging device includes a monopulse antenna array. The method includes: controlling the monopulse antenna array to transmit a sum beam and a difference beam to a device to be charged within a preset tracking period, and receiving an echo signal reflected back by the device to be charged, where the preset tracking period is the period for the monopulse antenna array to transmit the sum beam and the difference beam; tracking the position of the device to be charged according to the echo signal; and controlling the monopulse antenna array to perform wireless charging on the device to be charged according to the position information of the device to be charged.

Description

Technical Field

[0001] This application belongs to the technical field of wireless charging, and particularly relates to a wireless charging method, device, and electronic device. Background Art

[0002] Currently, devices such as mobile phones and earphones that support wireless charging functions basically use electromagnetic induction for wireless charging. Coils need to be provided on both the charger and the device to be charged. During charging, the coils of both must be aligned and can only be charged normally at a very close distance. In addition, the position of the device to be charged needs to remain unchanged. There are many limiting conditions for wireless charging, and users usually cannot charge the mobile phone wirelessly while holding and using it. Summary of the Invention

[0003] The purpose of the embodiments of this application is to provide a wireless charging method, device, and electronic device, which can solve the problems in the prior art that there are many limiting conditions such as position and distance when the charger and the device to be charged perform wireless charging, and the wireless charging requirements in long-distance and mobile scenarios cannot be met.

[0004] In the first aspect, the embodiments of this application provide a wireless charging method, which is applied to a wireless charging device. The wireless charging device includes a monopulse antenna array. The method includes:

[0005] Controlling the monopulse antenna array to transmit a sum beam and a difference beam to the device to be charged at a preset tracking period, and receiving the echo signal reflected back by the device to be charged. The preset tracking period is the period for the monopulse antenna array to transmit the sum beam and the difference beam;

[0006] Tracking the position of the device to be charged according to the echo signal;

[0007] Controlling the monopulse antenna array to perform wireless charging on the device to be charged according to the position information of the device to be charged.

[0008] In the second aspect, the embodiments of this application provide a wireless charging device. The wireless charging device includes a monopulse antenna array. The wireless charging device further includes:

[0009] A transceiver module, configured to control the monopulse antenna array to transmit a sum beam and a difference beam to the device to be charged at a preset tracking period, and receive the echo signal reflected back by the device to be charged. The preset tracking period is the period for the monopulse antenna array to transmit the sum beam and the difference beam;

[0010] A tracking module, configured to track the position of the device to be charged according to the echo signal;

[0011] A charging module, configured to control the monopulse antenna array to perform wireless charging on the device to be charged according to the position information of the device to be charged.

[0012] In a third aspect, an embodiment of the present application provides an electronic device, which includes a processor and a memory. The memory stores a program or instruction that can run on the processor. When the program or instruction is executed by the processor, the steps of the method described in the first aspect are implemented.

[0013] In a fourth aspect, an embodiment of the present application provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, the steps of the method described in the first aspect are implemented.

[0014] In a fifth aspect, an embodiment of the present application provides a chip, which includes a processor and a communication interface. The communication interface is coupled to the processor, and the processor is configured to run a program or instruction to implement the method described in the first aspect.

[0015] In a sixth aspect, an embodiment of the present application provides a computer program product, which is stored in a storage medium and is executed by at least one processor to implement the method described in the first aspect.

[0016] In the embodiment of the present application, the position of the device to be charged is tracked by using the monopulse antenna array with a preset tracking period. Thus, the power and / or phase of the monopulse antenna array can be controlled according to the position information of the device to be charged to perform wireless charging on the device to be charged, removing various restrictive conditions such as the position and distance of the device to be charged in the existing wireless charging technology, and effectively meeting the wireless charging requirements of the device to be charged in long-distance and mobile scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic flowchart of a wireless charging method provided by an embodiment of the present application;

[0018] Figure 2 It is a schematic diagram of the sum pattern and the difference pattern provided by an embodiment of the present application;

[0019] Figure 3 It is a schematic diagram of the change of the sum pattern and the difference pattern when the device to be charged moves provided by an embodiment of the present application;

[0020] Figure 4 It is a schematic structural diagram of a wireless charging device provided by an embodiment of the present application;

[0021] Figure 5 It is a schematic diagram of an antenna array provided by an embodiment of the present application;

[0022] Figure 6 Schematic diagram of beam control for the antenna array provided by an embodiment of the present application;

[0023] Figure 7 Schematic structural diagram of another wireless charging device provided by an embodiment of the present application;

[0024] Figure 8 Schematic structural diagram of an electronic device provided by an embodiment of the present application;

[0025] Figure 9 Schematic diagram of the hardware structure of an electronic device for implementing an embodiment of the present application. Detailed implementation manners

[0026] Next, the technical solutions in the embodiments of the present application will be clearly described with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present application.

[0027] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, rather than to describe a specific order or sequence. It should be understood that such data may be interchanged under appropriate circumstances so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second", etc. generally belong to the same category, and the number of objects is not limited. For example, the first object may be one or more. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / " generally represents an "or" relationship between the associated objects before and after.

[0028] Next, the wireless charging method, device, and electronic device provided by the embodiments of the present application will be described in detail with reference to the accompanying drawings, through specific embodiments and their application scenarios.

[0029] Please refer to Figure 1 , Figure 1 which is a schematic flowchart of a wireless charging method provided by an embodiment of the present application. As Figure 1 shown, an embodiment of the present application provides a wireless charging method. This method is applied to a wireless charging device, and the wireless charging device includes a monopulse antenna array. The method includes the following steps:

[0030] Step 101: Control the monopulse antenna array to transmit a sum beam and a difference beam to the device to be charged at a preset tracking period, and receive the echo signal reflected back by the device to be charged. The preset tracking period is the period for the monopulse antenna array to transmit the sum beam and the difference beam.

[0031] In an embodiment of the present application, when it is detected that a device to be charged enters the wireless charging range of a wireless charging device, a monopulse array antenna is controlled to transmit a sum beam and a difference beam to the device to be charged at a preset tracking period. The sum beam and the difference beam emitted by the monopulse antenna array are reflected after encountering the device to be charged, and then the echo signal reflected back by the device to be charged is received.

[0032] In an embodiment of the present application, the wireless charging range may be a spherical range centered on the wireless charging device with a radius of a certain value, and the size of the radius depends on the transmission power of the wireless charging device. Since the distance requirement between the wireless charging device and the device to be charged in this embodiment is not strict, that is, the device to be charged only needs to be located within the wireless charging range for wireless charging. Therefore, during wireless charging, the user can hold the device to be charged for use, and the device to be charged can move freely within the wireless charging range, which meets the wireless charging requirements in long-distance and mobile scenarios.

[0033] In an embodiment of the present application, considering that the device to be charged moves within the wireless charging range of the wireless charging device, it is necessary to detect the position of the device to be charged at a preset tracking period, so as to dynamically adjust the transmission power and phase of the wireless charging device, so that the device to be charged is always in the best charging state. Among them, the preset tracking period is also the period when the monopulse antenna array transmits the sum beam and the difference beam.

[0034] Step 102: Track the position of the device to be charged according to the echo signal;

[0035] In an embodiment of the present application, optionally, the sum beam has one main lobe, and the difference beam has two (or four) main lobes. The function of the sum beam is to detect the distance of the device to be charged to achieve distance tracking, while the function of the difference beam is to detect the azimuth angle and elevation angle information of the device to be charged to achieve angle tracking.

[0036] By transmitting the sum beam and the difference beam at a preset tracking period, the position of the device to be charged within the preset tracking period can be determined according to the echo signal received within each preset tracking period. By continuously detecting in this way, the tracking of the position of the device to be charged can be realized.

[0037] Step 103: Control the monopulse antenna array to perform wireless charging on the device to be charged according to the position information of the device to be charged.

[0038] In the embodiments of the present application, optionally, the position information of the device to be charged includes the azimuth angle, elevation angle (relative to the monopulse antenna array) of the device to be charged, and the distance between the device to be charged and the monopulse antenna array, etc. After obtaining the position information of the device to be charged, the power, phase, etc. of the charging beam of the monopulse antenna array can be dynamically controlled according to the position information of the device to be charged, so as to perform wireless charging on the device to be charged, ensuring that the device to be charged can maintain the best charging state regardless of its position within the wireless charging range.

[0039] Thus, in the embodiments of the present application, the position of the device to be charged is tracked by using the monopulse antenna array with a preset tracking period, so that the power and / or phase of the monopulse antenna array can be controlled according to the position information of the device to be charged for wireless charging of the device to be charged, removing various restrictive conditions on the position, distance, etc. of the device to be charged in the existing wireless charging technology, and effectively meeting the wireless charging requirements of the device to be charged in long-distance and mobile scenarios.

[0040] In some embodiments of the present application, the echo signal includes a difference signal and a sum signal, and the tracking of the position of the device to be charged according to the echo signal includes:

[0041] Adjusting the phase of the monopulse antenna array according to the difference signal to align the zero value direction of the difference beam with the device to be charged.

[0042] That is to say, the echo signal reflected back by the device to be charged includes a difference signal, where the difference signal corresponds to the difference beam.

[0043] Please refer to Figure 2 , Figure 2 , which is a schematic diagram of the sum pattern and difference pattern provided by the embodiments of the present application. If the device to be charged is exactly located at the maximum value direction of the sum beam, the received difference signal is the smallest (i.e., corresponding to the zero value of the difference pattern). If the device to be charged remains stationary, the received difference signal remains unchanged; when the device to be charged moves, the received difference signal changes from weak to strong. Exemplarily, if the device to be charged moves to the left, the beam signal on the left side of the difference pattern becomes larger, and if the device to be charged moves to the right, the beam signal on the right side of the difference pattern becomes larger. Thus, according to the difference signal, the moving direction and moving distance of the device to be charged can be judged, and then the phase of the monopulse antenna array can be adjusted to align the zero value direction of the difference beam with the device to be charged, or in other words, to align the maximum value direction of the sum beam with the device to be charged. When using the sum beam as the charging beam, the device to be charged can always be located at the maximum radiation direction of the sum beam.

[0044] Please refer to Figure 3 , Figure 3This is a schematic diagram of the change of the sum direction diagram and the difference direction diagram when the device to be charged moves according to the embodiment of the present application. Figure 3 As shown, the maximum radiation direction of the original sum pattern 31 is aligned with the device to be charged, that is, the zero value direction of the difference pattern is aligned with the device to be charged. When the device to be charged is in a moving state, for example, the device to be charged moves a distance x to the left, then a spacing of P is generated between the maximum radiation direction of the sum pattern and the device to be charged, and the beam signal on the left side of the difference pattern 32 will increase; conversely, if the device to be charged moves to the right, the beam signal on the right side of the difference pattern 32 will increase. Therefore, according to the difference signal, the moving direction and moving distance of the device to be charged can be determined.

[0045] In some embodiments of the present application, the preset tracking period can be adjusted according to the moving speed of the device to be charged. For example, if the moving speed of the device to be charged within a certain period of time is less than a certain threshold, it is considered that the moving speed of the device to be charged is slow at this time, and the preset tracking period can be appropriately extended. If the moving speed of the device to be charged within a certain period of time is greater than a certain threshold, it is considered that the moving speed of the device to be charged is fast at this time, and the preset tracking period can be appropriately shortened to ensure the real-time and accuracy of the tracking.

[0046] In some embodiments, if the position change of the device to be charged detected in two adjacent preset tracking cycles is small, for example, the distance change is less than a certain threshold, the phase of the single pulse antenna array may not be adjusted, thereby avoiding frequent adjustment of the phase of the single pulse antenna array.

[0047] Please refer to Figure 4 , Figure 4 This is a schematic diagram of the structure of a wireless charging device provided in an embodiment of the present application. Figure 4 As shown, the wireless charging device includes a power supply 41, a signal source 42, a feeding network 43, a servo control system 44 and a single pulse antenna array 45, wherein the power supply 41 provides power for the wireless charging device, the signal source 42 is used to generate a signal, and the signal source 42 is connected to the single pulse antenna array 45 via the feeding network 43 and the servo control system 44. After adjusting the phase of the feeding signal through the feeding network, the sum beam and the difference beam can be emitted simultaneously. When the device 46 to be charged moves, the signal received by the difference beam changes from weak to strong, and the difference signal is used to drive the servo control system to rotate the single pulse antenna array 45 in pitch or azimuth, so that the zero value direction of the difference beam is always aligned with the device 46 to be charged, thereby realizing the tracking of the azimuth of the device 46 to be charged.

[0048] In some embodiments of the present application, the wireless charging device has a servo control system for phase control. The servo control system includes an electronic beam controller and a phase shifter. Using the working principle of a phased array, the maximum radiation direction of the monopulse antenna array is changed by changing the phases of the radiation units in the monopulse antenna array. Specifically, a phase shifter is connected to each radiation unit to change the corresponding phase of each radiation unit, thereby changing the electromagnetic wave equiphase surface of the monopulse antenna array, and further realizing beam directional radiation.

[0049] The adjustment principle of the maximum radiation direction of the antenna array is introduced below.

[0050] Please refer to Figure 5 , Figure 5 which is a schematic diagram of the antenna array provided by the embodiment of the present application. As Figure 5 shown, in the coordinate system composed of the x-axis, y-axis, and x-axis, a linear receiving antenna array composed of N antenna elements, and the isotropic antenna elements are arranged in a line at equal intervals d. Then, in the θ direction, the phase difference of the signals received by adjacent antenna elements. The excitation current of each antenna element is i, and the electric field intensity radiated by each antenna element is proportional to its excitation current. Assuming that the observation point is far enough from the antenna array, it can be considered that the rays from each antenna element to the observation point are parallel. Then, the total field strength at the observation point can be considered as the sum of the field strengths radiated by the N antenna elements in the antenna array at that place, and the array factor of its radiation pattern can be simplified as:

[0051]

[0052] Please refer to Figure 6 , Figure 6 which is the beam control principle diagram of the antenna array provided by the embodiment of the present application. As Figure 6 shown, at this time, the maximum beam direction θ B of the antenna array can be expressed as:

[0053]

[0054] where Δφ B is the phase difference between adjacent antenna elements, λ is the wavelength of the wave radiated by the antenna element, and d is the spacing between adjacent antenna elements.

[0055] It can be seen from the above formula that by changing the phase difference Δφ B between each antenna element through the servo system, the maximum radiation direction θ B of the antenna array can be adjusted.

[0056] In some embodiments of the present application, controlling the monopulse antenna array to wirelessly charge the device to be charged according to the position information of the device to be charged includes:

[0057] Controlling the monopulse antenna array to emit electromagnetic waves with an adjusted phase within the preset tracking period to wirelessly charge the device to be charged.

[0058] In this embodiment, after obtaining the position information of the device to be charged within a certain preset tracking period, before the next preset tracking period arrives, the monopulse antenna array can be controlled to emit electromagnetic waves with an adjusted phase to wirelessly charge the device to be charged. Since the phase of the monopulse antenna array has been adjusted according to the received difference signal, that is, the adjusted phase of the monopulse antenna array can ensure that the maximum radiation direction of the charging beam is aligned with the device to be charged. Then, by emitting electromagnetic waves with the adjusted phase through the monopulse antenna array, it can be ensured that even if the device to be charged is in a moving state, the efficiency of its wireless charging can always be maintained at a high level. It can be known that for each preset tracking period, the phase of the monopulse antenna array may change, that is, the position of the device to be charged changes. Therefore, optionally, when charging the device to be charged within any preset tracking period, wireless charging should be performed with the adjusted phase within that preset tracking period.

[0059] In some other embodiments of the present application, the echo signal further includes a sum signal, and tracking the position of the device to be charged according to the echo signal further includes:

[0060] Determining the distance between the device to be charged and the monopulse antenna array according to the sum signal.

[0061] That is to say, the echo signal reflected back by the device to be charged further includes a sum signal, where the sum signal corresponds to the sum beam.

[0062] As Figure 2 、 3 shown, if the device to be charged is exactly located in the maximum direction of the sum beam, then at this time, the distance between the device to be charged and the monopulse antenna array can be detected according to the sum signal, and then the spatial position of the device to be charged can be determined. When the device to be charged moves, the difference signal can be used to continuously track the device to be charged.

[0063] In some embodiments of the present application, controlling the monopulse antenna array to wirelessly charge the device to be charged according to the position information of the device to be charged further includes:

[0064] Determining the target charging power of the monopulse antenna array in each preset tracking period according to the distance between the device to be charged and the monopulse antenna array tracked in each preset tracking period;

[0065] Control the monopulse antenna array to wirelessly charge the device to be charged with the target charging power within the preset tracking period.

[0066] In this embodiment, after obtaining the distance between the device to be charged and the monopulse antenna array, the charging power can be adjusted according to the distance from the device to be charged, so as to ensure the wireless charging efficiency and electromagnetic radiation safety. Exemplarily, for the distance between the device to be charged and the monopulse antenna array tracked in each preset tracking period, the corresponding target charging power can be determined, and then control the monopulse antenna array to wirelessly charge the device to be charged with the corresponding target charging power within the corresponding preset tracking period.

[0067] In some embodiments, optionally, if the difference between the target charging powers determined in two adjacent preset tracking periods is less than the first power threshold, then charging can be performed with the target charging power determined in the preset tracking period that is earlier in time among the two within these two adjacent preset tracking periods. That is to say, if the difference between the target charging powers determined in two adjacent preset tracking periods is less than the first power threshold, it is considered that the distance change between the device to be charged and the monopulse antenna array is very small, and there is no need to adjust the charging power within these two preset tracking periods, thus avoiding frequent adjustment of the charging power.

[0068] In some embodiments of the present application, when controlling the monopulse antenna array to wirelessly charge the device to be charged according to the position information of the device to be charged, the target charging power of the monopulse antenna array in each preset tracking period can be determined according to the distance between the device to be charged and the monopulse antenna array tracked in each preset tracking period, and the monopulse antenna array can also be controlled to emit electromagnetic waves with an adjusted phase within the preset tracking period, ultimately realizing the simultaneous adjustment of the phase and power of the charging electromagnetic waves.

[0069] In some other embodiments of the present application, before determining the target charging power of the monopulse antenna array in each preset tracking period according to the distance between the device to be charged and the monopulse antenna array tracked each time, it further includes:

[0070] Judge whether the device to be charged is in a held state within each preset tracking period;

[0071] Determining the target charging power of the monopulse antenna array in each preset tracking period according to the distance between the device to be charged and the monopulse antenna array tracked in each preset tracking period includes:

[0072] When the device to be charged is in a held state, determine the charging power of the monopulse antenna array within the preset tracking period as the first target charging power;

[0073] When the device to be charged is not in a held state, determine the charging power of the monopulse antenna array within the preset tracking period as the second target charging power;

[0074] Wherein, the first target charging power is less than the second target charging power.

[0075] In this embodiment, before determining the target charging power of the monopulse antenna array within each preset tracking period, the sensor built in the device to be charged can be used to detect whether the device to be charged is in a held state within the preset tracking period, and report the information on whether it is held to the wireless charging device. Thus, the wireless charging device adjusts the charging power according to whether the device to be charged is in a held state, so as to reduce the adverse effects on the user caused by excessive electromagnetic wave radiation during wireless charging.

[0076] Exemplarily, when determining the target charging power of the monopulse antenna array within each preset tracking period, for the same preset tracking period, if it is detected that the device to be charged is not in a held state, the charging power is set as the second target charging power; if it is detected that the device to be charged is in a held state, the charging power is set as the first target charging power which is smaller than the second target charging power, so as to reduce the influence of electromagnetic radiation. Or, for two preset tracking periods with the same distance between the device to be charged and the pulse antenna array, the charging power within the preset tracking period corresponding to when the device to be charged is held should be appropriately reduced, that is, smaller than the charging power within the preset tracking period corresponding to when the device to be charged is not held, so as to reduce the influence of electromagnetic radiation.

[0077] In some other embodiments of the present application, when the wireless charging device detects that the device to be charged enters the wireless charging range, it can send a message indicating that wireless charging can be performed to the device to be charged. At this time, the device to be charged can respond to this message and pop up a charging selection key on the page. The user can click on this charging selection key to manually set whether to perform wireless charging, set the charging mode, charging time, etc.

[0078] In summary, in the embodiments of the present application, the position of the device to be charged is tracked using a monopulse antenna array with a preset tracking period, so that the power and / or phase of the monopulse antenna array can be controlled according to the position information of the device to be charged for wireless charging of the device to be charged, removing various restrictive conditions such as the position and distance of the device to be charged in the existing wireless charging technology, effectively meeting the wireless charging requirements of the device to be charged in long-distance and mobile scenarios, and at the same time, by determining whether the device to be charged is in a held state, the device to be charged is in the best charging state on the premise of ensuring charging safety.

[0079] For the wireless charging method provided in the embodiments of the present application, the execution subject may be a wireless charging device. In the embodiments of the present application, taking the wireless charging device executing the wireless charging method as an example, the wireless charging device provided in the embodiments of the present application is described.

[0080] Please refer to Figure 7 , Figure 7 which is a schematic structural diagram of another wireless charging device provided in the embodiments of the present application. As Figure 7 shown, in another aspect of the embodiments of the present application, a wireless charging device is provided. The wireless charging device 500 includes a monopulse antenna array. The wireless charging device 500 further includes:

[0081] A transceiver module 501, configured to control the monopulse antenna array to transmit a sum beam and a difference beam to the device to be charged with a preset tracking period, and receive an echo signal reflected back by the device to be charged. The preset tracking period is the period for the monopulse antenna array to transmit the sum beam and the difference beam;

[0082] A tracking module 502, configured to track the position of the device to be charged according to the echo signal;

[0083] A charging module 503, configured to control the monopulse antenna array to perform wireless charging on the device to be charged according to the position information of the device to be charged.

[0084] Optionally, the echo signal includes a difference signal. The tracking module includes:

[0085] A phase adjustment unit, configured to adjust the phase of the monopulse antenna array according to the difference signal, so that the zero value direction of the difference beam is aligned with the device to be charged.

[0086] Optionally, the charging module includes:

[0087] A first charging unit, configured to control the monopulse antenna array to transmit electromagnetic waves with the adjusted phase within the preset tracking period to perform wireless charging on the device to be charged.

[0088] Optionally, the echo signal further includes a sum signal, and the tracking module further includes:

[0089] A distance determination unit, configured to determine the distance between the device to be charged and the monopulse antenna array according to the sum signal.

[0090] Optionally, the charging module includes:

[0091] A determination unit, configured to determine the target charging power of the monopulse antenna array in each preset tracking period according to the distance between the device to be charged and the monopulse antenna array tracked in each preset tracking period;

[0092] A second charging unit, configured to control the monopulse antenna array to wirelessly charge the device to be charged with the target charging power in the preset tracking period.

[0093] Optionally, the wireless charging device further includes:

[0094] A judgment module, configured to judge whether the device to be charged is in a held state in each preset tracking period;

[0095] The determination unit includes:

[0096] A first determination subunit, configured to determine that the charging power of the monopulse antenna array in the preset tracking period is a first target charging power when the device to be charged is in a held state;

[0097] A second determination subunit, configured to determine that the charging power of the monopulse antenna array in the preset tracking period is a second target charging power when the device to be charged is not in a held state;

[0098] Wherein, the first target charging power is less than the second target charging power.

[0099] In the embodiments of the present application, the position of the device to be charged is tracked by using a monopulse antenna array in a preset tracking period, so that the power and / or phase of the monopulse antenna array can be controlled according to the position information of the device to be charged to perform wireless charging on the device to be charged, removing various restrictive conditions on the position, distance, etc. of the device to be charged in the existing wireless charging technology, and effectively meeting the wireless charging requirements of the device to be charged in long-distance and mobile scenarios.

[0100] The wireless charging device in the embodiments of the present application may be a device with an operating system. The operating system may be an Android operating system, may be an iOS operating system, or may be other possible operating systems, which are not specifically limited in the embodiments of the present application.

[0101] The wireless charging device provided by the embodiment of the present application can implement Figures 1 to 6 each process implemented by the method embodiment. To avoid repetition, it will not be elaborated here.

[0102] Optionally, as Figure 8 shown, the embodiment of the present application further provides an electronic device 600, including a processor 601 and a memory 602. A program or instruction that can run on the processor 601 is stored on the memory 602. When the program or instruction is executed by the processor 601, it implements each step of the above-mentioned wireless charging method embodiment and can achieve the same technical effect. To avoid repetition, it will not be elaborated here.

[0103] Figure 9 It is a schematic diagram of the hardware structure of an electronic device for implementing the embodiment of the present application.

[0104] The electronic device 700 includes but is not limited to: a radio frequency unit 701, a network module 702, an audio output unit 703, an input unit 704, a sensor 705, a display unit 706, a user input unit 707, an interface unit 708, a memory 709, and a processor 7010 and other components.

[0105] Those skilled in the art can understand that the electronic device 700 may further include a power supply (such as a battery) for supplying power to each component. The power supply can be logically connected to the processor 7010 through a power management system, so as to implement functions such as management of charging, discharging, and power consumption management through the power management system. Figure 9 The structure of the electronic device shown in

[0106] does not constitute a limitation on the electronic device. The electronic device may include more or fewer components than shown, or combine certain components, or have different component arrangements, which will not be elaborated here.

[0107] The radio frequency unit 701 includes a monopulse antenna array. The radio frequency unit 701 is used to control the monopulse antenna array to transmit a sum beam and a difference beam to the device to be charged at a preset tracking period, and receive the echo signal reflected back by the device to be charged. The preset tracking period is the period for the monopulse antenna array to transmit the sum beam and the difference beam;

[0108] The processor 7010 is used to track the position of the device to be charged according to the echo signal;

[0109] In an embodiment of the present application, the position of the device to be charged is tracked using a monopulse antenna array at a preset tracking period, so that the power and / or phase of the monopulse antenna array can be controlled according to the position information of the device to be charged for wireless charging of the device to be charged, removing various restrictive conditions such as the position and distance of the device to be charged in the existing wireless charging technology, and effectively meeting the wireless charging requirements of the device to be charged in long-distance and mobile scenarios.

[0110] Optionally, the echo signal includes a difference signal, and the processor 7010 is further configured to adjust the phase of the monopulse antenna array according to the difference signal, so that the zero direction of the difference beam is aligned with the device to be charged.

[0111] Optionally, the processor 7010 is further configured to control the monopulse antenna array to emit electromagnetic waves at the adjusted phase within the preset tracking period for wireless charging of the device to be charged.

[0112] Optionally, the echo signal further includes a sum signal, and the processor 7010 is further configured to determine the distance between the device to be charged and the monopulse antenna array according to the sum signal.

[0113] Optionally, the processor 7010 is further configured to determine the target charging power of the monopulse antenna array within each preset tracking period according to the distance between the device to be charged and the monopulse antenna array tracked within each preset tracking period; control the monopulse antenna array to perform wireless charging on the device to be charged at the target charging power within the preset tracking period.

[0114] Optionally, the processor 7010 is further configured to determine whether the device to be charged is in a held state within each preset tracking period;

[0115] The processor 7010 is further configured to determine that the charging power of the monopulse antenna array within the preset tracking period is the first target charging power when the device to be charged is in a held state;

[0116] When the device to be charged is not in a held state, determine that the charging power of the radio frequency unit 701 within the preset tracking period is the second target charging power;

[0117] Wherein, the first target charging power is less than the second target charging power.

[0118] It should be understood that in the embodiments of the present application, the input unit 704 may include a Graphics Processing Unit (GPU) 7041 and a microphone 7042. The GPU 7041 processes the image data of static pictures or videos obtained by an image capture device (such as a camera) in the video capture mode or the image capture mode. The display unit 706 may include a display panel 7061, and the display panel 7061 may be configured in the form of a liquid crystal display, an organic light-emitting diode, etc. The user input unit 707 includes at least one of a touch panel 7071 and other input devices 7072. The touch panel 7071 is also referred to as a touch screen. The touch panel 7071 may include two parts: a touch detection device and a touch controller. The other input devices 7072 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, power on / off keys, etc.), a trackball, a mouse, and a joystick, which will not be elaborated herein.

[0119] The memory 709 can be used to store software programs and various data. The memory 709 mainly includes a first storage area for storing programs or instructions and a second storage area for storing data. Among them, the first storage area can store an operating system, applications or instructions required for at least one function (such as a sound playback function, an image playback function, etc.). In addition, the memory 709 may include a volatile memory or a non-volatile memory, or the memory 709 may include both a volatile memory and a non-volatile memory. Among them, the non-volatile memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash memory. The volatile memory may be a Random Access Memory (RAM), a Static RAM (SRAM), a Dynamic RAM (DRAM), a Synchronous DRAM (SDRAM), a Double Data Rate SDRAM (DDR SDRAM), an Enhanced SDRAM (ESDRAM), a Synch link DRAM (SLDRAM), and a Direct Rambus RAM (DRRAM). The memory 709 in the embodiments of the present application includes, but is not limited to, these and any other suitable types of memories.

[0120] The processor 7010 may include one or more processing units; optionally, the processor 7010 integrates an application processor and a modem processor. Among them, the application processor mainly processes operations related to the operating system, user interface, application programs, etc., and the modem processor mainly processes wireless communication signals, such as a baseband processor. It can be understood that the above-mentioned modem processor may not be integrated into the processor 7010 either.

[0121] The embodiment of the present application also provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, it implements each process of the above-mentioned embodiment of the wireless charging method and can achieve the same technical effect. To avoid repetition, it will not be elaborated here.

[0122] Among them, the processor is the processor in the electronic device described in the above embodiment. The readable storage medium includes computer-readable storage media, such as computer read-only memory, random access memory, magnetic disk, or optical disc, etc.

[0123] The embodiment of the present application further provides a chip, which includes a processor and a communication interface. The communication interface is coupled to the processor. The processor is used to run a program or instruction to implement each process of the above-mentioned embodiment of the wireless charging method and can achieve the same technical effect. To avoid repetition, it will not be elaborated here.

[0124] It should be understood that the chip mentioned in the embodiment of the present application may also be referred to as a system-on-chip, system chip, chip system, or system-on-chip, etc.

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

[0126] It should be noted that in this text, the term "including", "comprising", or any other variant thereof is intended to cover non-exclusive inclusion, such that a process, method, article, or device that includes a series of elements includes not only those elements but also other elements not explicitly listed, or elements that are inherent to such process, method, article, or device. Without further limitation, an element defined by the statement "including one..." does not exclude the existence of additional identical elements in the process, method, article, or device that includes such element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in the reverse order according to the functions involved. For example, the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0127] Through the description of the above embodiments, those skilled in the art can clearly understand that the above-described method of the embodiments can be implemented by means of software plus a necessary general hardware platform. Of course, it can also be implemented by hardware, but in many cases, the former is a better implementation. Based on this understanding, the technical solution of the present application, in essence, or the part that contributes to the prior art can be embodied in the form of a computer software product. The computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disc) and includes several instructions to enable a terminal (which can be a mobile phone, computer, server, or network device, etc.) to execute the methods described in various embodiments of the present application.

[0128] The embodiments of the present application have been described above in conjunction with the accompanying drawings. However, the present application is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not restrictive. Those of ordinary skill in the art, under the inspiration of the present application and without departing from the spirit and scope protected by the claims of the present application, can also make many forms, all of which fall within the protection scope of the present application.

Claims

1. A wireless charging method, characterized in that, Applied to a wireless charging device, the wireless charging device includes a monopulse antenna array, and the method includes: Controlling the monopulse antenna array to transmit a sum beam and a difference beam to a device to be charged within a preset tracking period, and receiving an echo signal reflected back by the device to be charged, where the preset tracking period is the period for the monopulse antenna array to transmit the sum beam and the difference beam; Tracking the position of the device to be charged according to the echo signal; Controlling the monopulse antenna array to perform wireless charging on the device to be charged according to the position information of the device to be charged; The echo signal includes a difference signal, and tracking the position of the device to be charged according to the echo signal includes: Adjusting the phase of the monopulse antenna array according to the difference signal to align the zero direction of the difference beam with the device to be charged; Controlling the monopulse antenna array to perform wireless charging on the device to be charged according to the position information of the device to be charged includes: Controlling the monopulse antenna array to transmit electromagnetic waves with the adjusted phase within the preset tracking period to perform wireless charging on the device to be charged.

2. The wireless charging method according to claim 1, wherein The echo signal further includes a sum signal, and tracking the position of the device to be charged according to the echo signal further includes: Determining the distance between the device to be charged and the monopulse antenna array according to the sum signal.

3. The wireless charging method according to claim 2, wherein Controlling the monopulse antenna array to perform wireless charging on the device to be charged according to the position information of the device to be charged further includes: Determining the target charging power of the monopulse antenna array within each preset tracking period according to the distance between the device to be charged and the monopulse antenna array tracked within each preset tracking period; Controlling the monopulse antenna array to perform wireless charging on the device to be charged with the target charging power within the preset tracking period.

4. The wireless charging method according to claim 3, wherein Before determining the target charging power of the monopulse antenna array within each preset tracking period according to the distance between the device to be charged and the monopulse antenna array tracked each time, it further includes: Judging whether the device to be charged is in a held state within each preset tracking period; Determining the target charging power of the monopulse antenna array within each preset tracking period according to the distance between the device to be charged and the monopulse antenna array tracked within each preset tracking period includes: When the device to be charged is in a held state, determining the charging power of the monopulse antenna array within the preset tracking period as a first target charging power; When the device to be charged is not in a held state, determining the charging power of the monopulse antenna array within the preset tracking period as a second target charging power; Wherein, the first target charging power is less than the second target charging power.

5. A wireless charging device, characterized in that, The wireless charging device includes a monopulse antenna array, and the wireless charging device further includes: A transceiver module, configured to control the monopulse antenna array to transmit a sum beam and a difference beam to a device to be charged at a preset tracking period, and receive an echo signal reflected back by the device to be charged, where the preset tracking period is the period for the monopulse antenna array to transmit the sum beam and the difference beam; A tracking module, configured to track the position of the device to be charged according to the echo signal; A charging module, configured to control the monopulse antenna array to wirelessly charge the device to be charged according to the position information of the device to be charged; The echo signal includes a difference signal, and the tracking module includes: A phase adjustment unit, configured to adjust the phase of the monopulse antenna array according to the difference signal, so that the zero direction of the difference beam is aligned with the device to be charged; The charging module includes: A first charging unit, configured to control the monopulse antenna array to transmit electromagnetic waves at the adjusted phase within the preset tracking period to wirelessly charge the device to be charged.

6. The wireless charging device according to claim 5, wherein The echo signal further includes a sum signal, and the tracking module further includes: A distance determination unit, configured to determine the distance between the device to be charged and the monopulse antenna array according to the sum signal.

7. The wireless charging device according to claim 6, wherein The charging module includes: A determination unit, configured to determine the target charging power of the monopulse antenna array in each preset tracking period according to the distance between the device to be charged and the monopulse antenna array tracked in each preset tracking period; A second charging unit, configured to control the monopulse antenna array to wirelessly charge the device to be charged at the target charging power within the preset tracking period.

8. The wireless charging device according to claim 7, characterized in that, The wireless charging device further includes: A judgment module, configured to judge whether the device to be charged is in a held state in each preset tracking period; The determination unit includes: A first determination subunit, configured to determine that the charging power of the monopulse antenna array in the preset tracking period is a first target charging power when the device to be charged is in a held state; A second determination subunit, configured to determine that the charging power of the monopulse antenna array in the preset tracking period is a second target charging power when the device to be charged is not in a held state; Wherein, the first target charging power is less than the second target charging power.

9. An electronic device, characterized in that, It includes a processor and a memory, and the memory stores a program or instruction that can run on the processor. When the program or instruction is executed by the processor, the steps of the wireless charging method according to any one of claims 1-4 are implemented.

10. A readable storage medium, characterized in that, The program or instruction is stored on the readable storage medium. When the program or instruction is executed by the processor, the steps of the wireless charging method according to any one of claims 1-4 are implemented.

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