Wireless charging method and device, receiving equipment, transmitting equipment and medium

Abstract

The invention relates to a wireless charging method and device, receiving equipment, transmitting equipment and a medium, and the method comprises the steps: receiving a second inductance quality parameter transmitted by charging transmitting equipment through charging receiving equipment, determining target charging power based on a numerical relationship between the second inductance quality parameter and a first inductance quality parameter, and transmitting the target charging power to the charging transmitting equipment; and determining a wireless charging parameter based on the target charging power, and sending the wireless charging parameter to the charging transmitting device. The charging receiving device dynamically changes the target charging power based on the numerical relationship between the second inductance quality parameter and the first inductance quality parameter, when a foreign matter exists between the charging receiving device and the charging transmitting device, the temperature of the foreign matter can be effectively prevented from rising due to an electromagnetic signal in the charging process, and the charging efficiency is improved. Risks such as scalding are prevented, safe operation of the wireless charging process is ensured, and the reliability of the wireless charging process is improved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of electronic devices, and in particular to a wireless charging method, device, receiving device, transmitting device and medium. Background Art

[0002] With the development and popularization of electronic devices, wireless charging has become a standard feature of electronic devices, and the maximum power of wireless charging has reached 50W. Currently, most electronic devices with wireless charging function on the market need to support the Qi protocol standard of WPC (Wireless Power Consortium), which includes foreign object detection function, referred to as FOD (Foreign Object Detection). FOD detection is to detect whether there are metal objects, such as rings, coins and other foreign objects, between the wireless charger and the electronic device.

[0003] However, the foreign object monitoring function can only monitor foreign objects located near the middle position between the charging transmitter and the charging receiver. When the foreign object is located near the edge area between the charging transmitter and the charging receiver, effective monitoring cannot be performed and the wireless charging process will still charge at maximum power, causing the foreign object to be heated to a very high temperature through electromagnetic induction during the wireless charging process, thereby damaging the charging transmitter and the charging receiver. Summary of the invention

[0004] In order to overcome the problems existing in the related art, the present disclosure provides a wireless charging method, apparatus, receiving device, transmitting device and medium.

[0005] According to a first aspect of an embodiment of the present disclosure, a wireless charging method is provided, which is applied to a charging receiving device. The wireless charging method includes:

[0006] Sending charging protocol data to a charging transmitter device, wherein the charging protocol data includes a first inductance quality parameter, and the first inductance quality parameter is used to characterize a threshold value of the inductance quality during the wireless charging process;

[0007] Receiving a second inductance quality parameter sent by the charging transmitter device, where the second inductance quality parameter is used to characterize the inductance quality in the current wireless charging process;

[0008] determining a target charging power based on a numerical relationship between the second inductor quality parameter and the first inductor quality parameter;

[0009] Sending wireless charging parameters to the charging transmitting device, wherein the wireless charging parameters are determined based on the target charging power.

[0010] In some exemplary embodiments of the present disclosure, determining the target charging power based on the numerical relationship between the second inductance quality parameter and the first inductance quality parameter includes:

[0011] acquiring a difference between the second inductor quality parameter and the first inductor quality parameter as a target adjustment parameter;

[0012] Based on a preset threshold and the target adjustment parameter, the target charging power corresponding to the target adjustment parameter is obtained.

[0013] In some exemplary embodiments of the present disclosure, the preset threshold includes a first threshold and a second threshold, and obtaining the target charging power corresponding to the target adjustment parameter based on the preset threshold and the target adjustment parameter includes:

[0014] When the target adjustment parameter is greater than or equal to a first threshold, determining that the target charging power is a maximum charging power allowed in the wireless charging process;

[0015] When the target adjustment parameter is less than the first threshold and the target adjustment parameter is greater than or equal to the second threshold, the target charging power corresponding to the target adjustment parameter is obtained based on a preset corresponding relationship, wherein the preset corresponding relationship is used to characterize the corresponding relationship between the adjustment parameter and the charging power.

[0016] In some exemplary embodiments of the present disclosure, the wireless charging method further includes:

[0017] The difference is greater than or equal to zero, and there is a positive correlation between the target charging power and the difference.

[0018] In some exemplary embodiments of the present disclosure, the wireless charging method further includes:

[0019] Receive first instruction information sent by the charging transmitting device, where the first instruction information is used to instruct the charging receiving device to close the wireless charging process.

[0020] According to a second aspect of an embodiment of the present disclosure, a wireless charging method is provided, which is applied to a charging transmitter device. The wireless charging method includes:

[0021] Receiving charging protocol data sent by a charging receiving device, wherein the charging protocol data includes a first inductance quality parameter, and the first inductance quality parameter is used to characterize a threshold value of inductance quality during wireless charging;

[0022] Determining a second inductor quality parameter, where the second inductor quality parameter is used to characterize the inductor quality in the current wireless charging process;

[0023] When the second inductance quality parameter is greater than or equal to the first inductance quality parameter, sending the second inductance quality parameter to the charging receiving device;

[0024] The wireless charging parameter sent by the charging receiving device is received, wherein the wireless charging parameter is determined based on a target charging power, and the target charging power is determined based on a numerical relationship between the second inductance quality parameter and the first inductance quality parameter.

[0025] In some exemplary embodiments of the present disclosure, the wireless charging method further includes:

[0026] When the second inductance quality parameter is less than the first inductance quality parameter, first instruction information is sent to the charging receiving device, wherein the first instruction information is used to instruct the charging receiving device to turn off the wireless charging process.

[0027] According to a third aspect of an embodiment of the present disclosure, a wireless charging device is provided, which is applied to a charging receiving device. The wireless charging device includes:

[0028] A first sending module, used to send charging protocol data to a charging transmitting device, wherein the charging protocol data includes a first inductance quality parameter, and the first inductance quality parameter is used to characterize a threshold value of the inductance quality during the wireless charging process;

[0029] A first receiving module, used to receive a second inductance quality parameter sent by the charging transmitter device, where the second inductance quality parameter is used to characterize the inductance quality in the current wireless charging process;

[0030] a first determining module, configured to determine a target charging power based on a numerical relationship between the second inductance quality parameter and the first inductance quality parameter;

[0031] The first sending module is further used to send wireless charging parameters to the charging transmitting device, wherein the wireless charging parameters are determined based on the target charging power.

[0032] According to a fourth aspect of an embodiment of the present disclosure, a wireless charging device is provided, which is applied to a charging transmitter device. The wireless charging device includes:

[0033] A second receiving module, configured to receive charging protocol data sent by a charging receiving device, wherein the charging protocol data includes a first inductance quality parameter, and the first inductance quality parameter is used to characterize a threshold value of the inductance quality during the wireless charging process;

[0034] A second determination module, used to determine a second inductance quality parameter, where the second inductance quality parameter is used to characterize the inductance quality in the current wireless charging process;

[0035] a second sending module, configured to send the second inductance quality parameter to the charging receiving device when the second inductance quality parameter is greater than or equal to the first inductance quality parameter;

[0036] The second receiving module is further used to receive the wireless charging parameters sent by the charging receiving device, wherein the wireless charging parameters are determined based on the target charging power, and the target charging power is determined based on the numerical relationship between the second inductance quality parameter and the first inductance quality parameter.

[0037] According to a fifth aspect of an embodiment of the present disclosure, a charging receiving device is provided, the charging receiving device comprising:

[0038] processor;

[0039] a memory for storing processor-executable instructions;

[0040] The processor is configured to execute executable instructions in the memory to implement the wireless charging method provided in the first aspect of the present disclosure.

[0041] According to a sixth aspect of an embodiment of the present disclosure, a non-temporary computer-readable storage medium is provided, on which executable instructions are stored. When the executable instructions are executed by a processor, the wireless charging method provided in the first aspect of the present disclosure is implemented.

[0042] According to a seventh aspect of an embodiment of the present disclosure, a charging transmitter is provided, the charging transmitter comprising:

[0043] processor;

[0044] a memory for storing processor-executable instructions;

[0045] Among them, the processor is configured to execute the executable instructions in the memory to implement the wireless charging method provided in the second aspect of the present disclosure.

[0046] According to an eighth aspect of an embodiment of the present disclosure, a non-temporary computer-readable storage medium is provided, on which executable instructions are stored. When the executable instructions are executed by a processor, the wireless charging method provided in the second aspect of the present disclosure is implemented.

[0047] The above method of the present invention has the following beneficial effects: the charging receiving device in the present invention dynamically changes the target charging power based on the numerical relationship between the second inductance quality parameter and the first inductance quality parameter. When there is a foreign object between the charging receiving device and the charging transmitting device, the temperature of the foreign object can be effectively prevented from rising due to the electromagnetic signal during the charging process, and the risk of burns can be prevented, thereby ensuring the safety of the wireless charging process and improving the reliability of the wireless charging process.

[0048] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0050] Figure 1 It is the schematic diagram of the Q value detection circuit.

[0051] Figure 2 It is a schematic diagram of an application scenario of the wireless charging method shown in the present disclosure.

[0052] Figure 3 The figure is a flow chart of a wireless charging method according to an exemplary embodiment.

[0053] Figure 4 The figure is a flow chart of a wireless charging method according to an exemplary embodiment.

[0054] Figure 5 The figure is a flow chart of a wireless charging method according to an exemplary embodiment.

[0055] Figure 6 The figure is a flow chart of a wireless charging method according to an exemplary embodiment.

[0056] Figure 7 The figure is a flow chart of a wireless charging method according to an exemplary embodiment.

[0057] Figure 8 The figure is a flow chart of a wireless charging method according to an exemplary embodiment.

[0058] Fig. 9 is a block diagram of a wireless charging device according to an exemplary embodiment.

[0059] Fig.10 is a block diagram of a wireless charging device according to an exemplary embodiment.

[0060] Fig.11 is a block diagram of a charging receiving device according to an exemplary embodiment. DETAILED DESCRIPTION

[0061] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of devices and methods consistent with some aspects of the present disclosure as detailed in the appended claims.

[0062] At present, there are two main methods for detecting FOD, one is based on power loss (energy loss) detection, and the other is based on Q value detection. The following mainly describes the detection based on Q value. Q value is the main parameter for measuring inductor components. It refers to the ratio of inductive reactance to equivalent loss resistance when the inductor works under an AC voltage of a certain frequency. The higher the Q value, the smaller the inductor loss. Figure 1 It is the schematic diagram of the Q value detection circuit, which includes a sinusoidal voltage source U, a resonant capacitor C, and a coil L. The Q value is a fixed parameter of the RLC oscillation circuit. The coil Q value is equal to the ratio of the effective voltage value at both ends of the coil to the effective voltage value of the driving power supply, that is, Q = V2 / V1.

[0063] Q value detection is mainly completed by the charging transmitter. Since the Q value of the charging transmitter is affected by the external environment, when there is a metal foreign object on its surface, the inductance of the charging transmitter coil will decrease, and the equivalent impedance will increase, and the Q value will decrease. Therefore, foreign objects can be detected in the startup phase of the wireless charging EPP (Extended Power Profile) mode. In the initial stage of wireless charging, the charging receiving device will send a fixed Q value threshold to the charging transmitter (the threshold value is a fixed parameter that has been debugged after Qi certification and will not be modified after the charging receiving device is launched on the market). The charging transmitter calculates the Q value of the current charging system and compares it with the received threshold value. If it is lower than the threshold value, it means that a foreign object has been detected and wireless charging is stopped; if it is not lower than the threshold value, it means that no foreign object has been detected and wireless charging continues.

[0064] At present, when the Q value actually calculated by the charging transmitter is greater than the threshold value, no matter how much it exceeds the threshold value, it is considered that there is no foreign object between the charging transmitter and the charging receiving device, and the charging transmitter will charge the charging receiving device at a high power. However, there is a certain error in the Q value actually calculated by the charging transmitter, especially when the charging transmitter performs wireless charging on the charging receiving device, if the foreign object is not located in the middle of the coil of the charging transmitter (such as a wireless charger) and the charging receiving device (such as an electronic device to be charged), but is at the edge, the Q value calculated by the charging transmitter is likely to be greater than the threshold value. In this case, the charging transmitter will not turn off the charging function and will still charge at the maximum power, which will cause the foreign object at the edge to be heated to a very high temperature by the electromagnetic induction of the charging transmitter, which is potentially dangerous.

[0065] Figure 2 This is a scenario diagram of the wireless charging method in the present disclosure. During the wireless charging process, there is no need to physically and electrically connect the charging receiving device 10 (such as mobile phones, headphones and other electronic devices) and the charging transmitting device 11 (such as a wireless charger). The charging receiving device 10 is placed on the charging transmitting device 11, and charging can be performed by forming an electromagnetic connection between the two through a magnetic field. When there is a foreign object 12 (such as a metal ring, a coin, a paper clip, etc.) between the charging receiving device 10 and the charging transmitting device 11, the foreign object 12 is at the edge. If charging is performed according to the current wireless charging method, the foreign object 12 at the edge will be heated to a higher temperature due to electromagnetic induction, causing damage to the charging receiving device 10, the charging transmitting device 11, etc., and there are potential safety hazards.

[0066] In order to solve the above problems, the present disclosure provides a wireless charging method, in which the charging receiving device dynamically changes the target charging power based on the numerical relationship between the second inductance quality parameter and the first inductance quality parameter. When there is foreign matter between the charging receiving device and the charging transmitting device, the temperature of the foreign matter can be effectively prevented from rising due to the electromagnetic signal during the charging process, thereby preventing the risk of burns, etc., ensuring the safety of the wireless charging process and improving the reliability of the wireless charging process.

[0067] The exemplary embodiments of the present disclosure provide a wireless charging method, which is applied to a charging receiving device, and the charging receiving device can be an electronic device that supports wireless charging, such as a mobile phone, a smart wearable device, and a headset. Figure 3 As shown, the wireless charging method shown in the present disclosure includes:

[0068] S301, sending charging protocol data to a charging transmitting device, where the charging protocol data includes a first inductance quality parameter;

[0069] S302, receiving a second inductance quality parameter sent by a charging transmitter;

[0070] S303, determining a target charging power based on a numerical relationship between the second inductor quality parameter and the first inductor quality parameter;

[0071] S304: Send wireless charging parameters to the charging transmitting device.

[0072] In step S301, the charging receiving device supports the Qi protocol standard of WPC, and the charging receiving device sends the charging protocol data specified by Qi to the charging transmitting device. The charging protocol data includes Qi protocol data packets, ID packets, CEP (Control Electronics Package, control electronic product package) and other contents. The charging protocol data also includes a first inductance quality parameter, which is used to characterize the threshold value of the inductance quality during the wireless charging process, that is, the threshold value of the Q value mentioned above. The first inductance quality parameter is a fixed parameter that the charging receiving device has been debugged and certified by Qi before leaving the factory, and its value will not change during the subsequent wireless charging process. Charging receiving devices produced by different manufacturers have different first inductance quality parameters, which are set by the manufacturer according to the specific performance of the charging receiving device. For example, the value of the first inductance quality parameter can be 36, 40, 45, etc.

[0073] In step S302, the second inductance quality parameter is used to characterize the inductance quality in the current wireless charging process, that is, the actual value of the Q value mentioned above in the wireless charging process. The second inductance quality parameter is calculated by the charging transmitter, and the charging receiving device receives the second inductance quality parameter sent by the charging transmitter. Since the Q value is the main parameter for measuring the inductor device, the Q value will change due to the influence of the external environment, so the second inductance quality parameter is not a fixed parameter. When there is a metal foreign body between the charging receiving device and the charging transmitting device, the second inductance quality parameter will change.

[0074] In step S303, the charging receiving device calculates the numerical relationship between the first inductance quality parameter and the second inductance quality parameter. In one example, the numerical relationship can be the difference between the second inductance quality parameter and the first inductance quality parameter. Since the first inductance quality parameter is the threshold value of the inductance quality during the wireless charging process, and the second inductance quality parameter is the actual value of the inductance quality during the wireless charging process, the difference between the two can reflect whether there is a foreign object in the current wireless charging process. For example, when the difference between the second inductance quality parameter and the first inductance quality parameter is less than zero, it indicates that there is a foreign object in the middle area between the charging transmitting device and the charging receiving device; for another example, when the difference between the second inductance quality parameter and the first inductance quality parameter is greater than zero but less than a certain value, it indicates that there is a foreign object in the edge area between the charging transmitting device and the charging receiving device. In another example, the numerical relationship may be, for example, a proportional relationship between the second inductance quality parameter and the first inductance quality parameter. By using the proportional relationship between the two, it is determined whether there is foreign matter in the wireless charging process. For example, if the ratio between the second inductance quality parameter and the first inductance quality parameter is less than 1, it indicates that there is foreign matter in the middle area between the charging transmitter device and the charging receiver device. For another example, if the ratio between the second inductance quality parameter and the first inductance quality parameter is equal to 1, it indicates that there is foreign matter in the edge area between the charging transmitter device and the charging receiver device.

[0075] The maximum allowed charging power is set during the wireless charging process, and the charging power during the wireless charging process cannot exceed the maximum charging power. The charging receiving device determines the target charging power based on the numerical relationship between the second inductance quality parameter and the first inductance quality parameter, and the target charging power is less than or equal to the maximum charging power. The charging receiving device reduces the charging power of the wireless charging process based on the charging power corresponding to the difference or ratio for wireless charging, ensuring that when there is a metal foreign body at the edge between the charging receiving device and the charging transmitting device, the wireless charging will not always be performed at the maximum charging power, but the charging power will be reduced during the wireless charging process to prevent the metal foreign body in the edge area from being heated to a higher temperature.

[0076] The charging receiving device may pre-store a calculation formula of the numerical relationship between the first inductance quality parameter and the second inductance quality parameter and the target charging power, and the charging receiving device calculates the output target charging power based on the received second inductance quality parameter. The charging receiving device may also pre-store a corresponding relationship table of the numerical relationship between the first inductance quality parameter and the second inductance quality parameter and the target charging power. For example, when the first inductance quality parameter is set to 40, the maximum charging power allowed in the wireless charging process is 50W, and the difference corresponding to the numerical relationship is 1, the target charging power is 20W; when the difference corresponding to the numerical relationship is 2, the target charging power is 20W; when the difference corresponding to the numerical relationship is 3, the corresponding target charging power is 30W, etc. Therefore, when the received second inductance quality parameter is 42, the difference corresponding to the numerical relationship between the second inductance quality parameter and the first inductance quality parameter is 2, and the charging receiving device determines that the corresponding target charging power is 20W. In addition, the numerical relationship may also be a ratio of a difference between the second inductance quality parameter and the first inductance quality parameter to the first inductance quality parameter. Through the corresponding relationship between the ratio and the charging power, the charging receiving device may determine the target charging power based on the ratio.

[0077] In step S304, after determining the target charging power, the charging receiving device determines the wireless charging parameters based on the target charging power, and the wireless charging parameters include the wireless charging current, the charging receiving device input current, the charging receiving device chip output voltage threshold value, etc. The charging receiving device sends the wireless charging parameters to the charging transmitting device, and the charging transmitting device sets the corresponding working voltage according to the received wireless charging parameters, and wirelessly charges the charging receiving device with the working voltage.

[0078] In the present disclosure, the charging receiving device dynamically changes the target charging power based on the numerical relationship between the second inductance quality parameter and the first inductance quality parameter. When there is a foreign object between the charging receiving device and the charging transmitting device, the temperature rise of the foreign object can be effectively avoided, and the occurrence of risks such as burns can be prevented, thereby ensuring the safety of the wireless charging process and improving the user experience.

[0079] According to an exemplary embodiment, Figure 4 As shown, the wireless charging method in this embodiment includes:

[0080] S401, sending charging protocol data to a charging transmitting device, where the charging protocol data includes a first inductance quality parameter;

[0081] S402, receiving a second inductance quality parameter sent by a charging transmitter;

[0082] S403, obtaining a difference between the second inductor quality parameter and the first inductor quality parameter as a target adjustment parameter;

[0083] S404, obtaining a target charging power corresponding to the target adjustment parameter based on a preset threshold and the target adjustment parameter;

[0084] S405: Send wireless charging parameters to the charging transmitting device.

[0085] Among them, steps S401, S402, and S405 are the same as those in the above embodiment and will not be repeated here.

[0086] In step S403, the charging receiving device uses the difference between the second inductance quality parameter and the first inductance quality parameter as the target adjustment parameter. The target adjustment parameter can reflect whether there is foreign matter in the current wireless charging process. If the value corresponding to the target adjustment parameter is larger, it means that the influence of the foreign matter on the inductance is smaller, or there is no foreign matter; if the value corresponding to the target adjustment parameter is smaller, it means that there is foreign matter, and the influence of the foreign matter on the inductance is greater. For example, the first inductance quality parameter is set to 40, if the second inductance quality parameter received by the charging receiving device is 50, then the target adjustment parameter is 10, and there is no foreign matter between the charging receiving device and the charging transmitting device; if the second inductance quality parameter received by the charging receiving device is 44, then the target adjustment parameter is 4, there is foreign matter in the edge area between the charging receiving device and the charging transmitting device, and the influence of the foreign matter on the inductance is small; if the second inductance quality parameter received by the charging receiving device is 40, then the target adjustment parameter is 0, there is foreign matter in the area closer to the center between the charging receiving device and the charging transmitting device, and the influence of the foreign matter on the inductance is large.

[0087] In step S404, when the second inductance quality parameter is less than the first inductance quality parameter, that is, when the target adjustment parameter is less than zero, it can be clearly known that there is a foreign object between the charging receiving device and the charging transmitting device, and the charging transmitting device will instruct the charging receiving device to turn off the wireless charging process. When the second inductance quality parameter is greater than or equal to the first inductance quality parameter, that is, when the target adjustment parameter is greater than or equal to zero, it is impossible to clearly know whether there is a foreign object between the charging receiving device and the charging transmitting device, so a preset threshold is set. When the target adjustment parameter is greater than or equal to the preset threshold, it is determined that there is no foreign object between the charging receiving device and the charging transmitting device; when the target adjustment parameter is less than the preset threshold, it is determined that there is a foreign object between the charging receiving device and the charging transmitting device. In order to prevent the foreign object from being heated to a very high temperature during the wireless charging process, the charging receiving device will obtain the target charging power corresponding to the target adjustment parameter based on the relationship between the target adjustment parameter and the preset threshold.

[0088] In the present disclosure, the charging receiving device obtains the target charging power corresponding to the target adjustment parameter based on the preset threshold value and the target adjustment parameter. Even when there may be foreign objects in the edge area between the charging receiving device and the charging transmitting device or it is uncertain whether there are foreign objects, the problem of severe heating of foreign objects during wireless charging can be avoided by reducing the charging power, so that foreign objects at the edge will not be heated to a very high temperature, eliminating safety hazards.

[0089] According to an exemplary embodiment, Figure 5 As shown, the wireless charging method in this embodiment includes:

[0090] S501, sending charging protocol data to a charging transmitting device, where the charging protocol data includes a first inductance quality parameter;

[0091] S502, receiving a second inductance quality parameter sent by a charging transmitter;

[0092] S503, obtaining a difference between the second inductor quality parameter and the first inductor quality parameter as a target adjustment parameter;

[0093] S504, determining whether the target adjustment parameter is greater than or equal to a first threshold value, if the target adjustment parameter is greater than or equal to the first threshold value, executing step S505; if the target adjustment parameter is less than the first threshold value, executing step S506;

[0094] S505, determining that the target charging power is the maximum charging power allowed during the wireless charging process;

[0095] S506. Obtaining a target charging power corresponding to the target adjustment parameter based on a preset corresponding relationship;

[0096] S507: Send wireless charging parameters to the charging transmitting device.

[0097] Among them, steps S501-S503 and S507 are the same as those in the above embodiment and will not be repeated here.

[0098] When the second inductance quality parameter is less than the first inductance quality parameter, that is, when the target adjustment parameter is less than zero, it can be clearly known that there is a foreign object between the charging receiving device and the charging transmitting device, and the charging transmitting device will instruct the charging receiving device to turn off the wireless charging process without adjusting the target charging power. Therefore, this embodiment discusses the situation where the difference between the second inductance quality parameter and the first inductance quality parameter is greater than or equal to zero, that is, it is impossible to determine whether there is a foreign object between the charging receiving device and the charging transmitting device through the second inductance quality parameter. The preset threshold includes a first threshold and a second threshold, the first threshold is greater than the second threshold, the first threshold is used to characterize whether the inductance is affected by foreign objects during the wireless charging process, and the second threshold is used to characterize whether the target charging power needs to be adjusted.

[0099] In step S504, the charging receiving device determines whether the target adjustment parameter is greater than or equal to the first threshold value. If the target adjustment parameter is greater than or equal to the first threshold value, which indicates that the inductance is not affected by foreign matter during the wireless charging process, step S505 is executed to set the target charging power to the maximum charging power allowed by the wireless charging process, and the entire wireless charging process is completed with the maximum charging power without causing damage to the charging transmitting device and the charging receiving device.

[0100] If it is determined in step S504 that the target adjustment parameter is less than the first threshold and greater than or equal to the second threshold, that is, it indicates that the electric induction is affected by the foreign object at the edge during the wireless charging process, and the target charging power needs to be adjusted to prevent the foreign object from being heated to a very high temperature, so step S506 is executed to obtain the target charging power corresponding to the target adjustment parameter based on the preset corresponding relationship. Among them, the target charging power is positively correlated with the difference, that is, when the target adjustment parameter is less than the first threshold and greater than or equal to the second threshold, the larger the target adjustment parameter, the larger the corresponding target charging power.

[0101] For example, the first inductance quality parameter is set to 40, the first threshold is 4, the second threshold is 0, and the maximum charging power is 50W. When the second inductance quality parameter received by the charging receiving device is 50, the target adjustment parameter is 10, which is greater than the first threshold, that is, there is no foreign matter between the charging receiving device and the charging transmitting device, and the target charging power is set to 50W; when the second inductance quality parameter received by the charging receiving device is 42, the target adjustment parameter is 2, which is less than the first threshold and greater than the second threshold, that is, there is a foreign matter between the charging receiving device and the charging transmitting device, and the inductance is affected by the foreign matter, and the target charging power is adjusted to 20W corresponding to the target adjustment parameter; when the second inductance quality parameter received by the charging receiving device is 40, the target adjustment parameter is 0, which is less than the first threshold and equal to the second threshold, and the target charging power is adjusted to 10W corresponding to the target adjustment parameter.

[0102] In the present disclosure, the charging receiving device determines to use the maximum charging power as the target charging power or dynamically adjusts the target charging power according to the target adjustment parameter based on the judgment of the target adjustment parameter and the first threshold, thereby reducing the temperature of the foreign object, avoiding the influence of the foreign object on the wireless charging process, and improving the reliability of the wireless charging process.

[0103] In some embodiments, the wireless charging method further comprises:

[0104] Receive first instruction information sent by the charging transmitting device, where the first instruction information is used to instruct the charging receiving device to close the wireless charging process.

[0105] When the second inductance quality parameter calculated by the charging transmitter device is greater than the first inductance quality parameter, that is, when the second inductance quality parameter can be used to determine that there is a foreign object between the charging receiving device and the charging transmitting device, the charging transmitting device no longer sends the second inductance quality parameter to the charging receiving device, and directly sends the first instruction information to the charging receiving device to instruct the charging receiving device to turn off the wireless charging process. Therefore, after receiving the first instruction information sent by the charging transmitting device, the charging receiving device turns off the wireless charging process to avoid damage to the device due to the foreign object being heated to a very high temperature during the wireless charging process. In addition, after receiving the first instruction information, the charging receiving device can remind the user in the form of text, sound, vibration, etc., prompting the user to remove the foreign object between the charging receiving device and the charging transmitting device in time to avoid affecting the next wireless charging process.

[0106] The exemplary embodiments of the present disclosure provide a wireless charging method, which is applied to a charging transmitter device, which can be a wireless charger. Of course, it is understandable that the charging transmitter device can also be an electronic device with a transmitting coil, such as a mobile phone or a tablet computer. For example, one of two mobile phones is used as a charging transmitter device and the other is used as a charging receiving device. Figure 6 As shown, the wireless charging method shown in the present disclosure includes:

[0107] S601, receiving charging protocol data sent by a charging receiving device, where the charging protocol data includes a first inductance quality parameter;

[0108] S602, determining a second inductor quality parameter;

[0109] S603: When the second inductance quality parameter is greater than or equal to the first inductance quality parameter, send the second inductance quality parameter to the charging receiving device;

[0110] S604: Receive wireless charging parameters sent by the charging receiving device.

[0111] In step S601, the charging transmitting device receives the charging protocol data sent by the charging receiving device, the charging protocol data includes Qi protocol data packet, ID packet, CEP (Control Electronics Package) and other contents, the charging protocol data also includes a first inductance quality parameter, the first inductance quality parameter is used to characterize the threshold value of the inductance quality during the wireless charging process, the first inductance quality parameter is a fixed parameter of the charging receiving device that has been Qi certified and debugged before leaving the factory, and its value will not change during the subsequent wireless charging process.

[0112] In step S602, the charging transmitter calculates the second inductance quality parameter, which is used to characterize the inductance quality in the current wireless charging process, that is, the actual value of the Q value in the wireless charging process. Since the Q value is the main parameter for measuring the inductance device, the Q value will change due to the external environment, so the second inductance quality parameter is not a fixed parameter. When there is a metal foreign body between the charging receiving device and the charging transmitting device, the second inductance quality parameter will change.

[0113] In step S603, if the charging transmitting device determines that the second inductance quality parameter is greater than or equal to the first inductance quality parameter, that is, it is impossible to determine whether there is a metal foreign object between the charging receiving device and the charging transmitting device through the second inductance quality parameter, the charging transmitting device sends the second inductance quality parameter to the charging receiving device, and the charging receiving device adjusts the target charging parameter.

[0114] In step S604, the charging transmitting device receives the wireless charging parameters sent by the charging receiving device, wherein the wireless charging parameters are determined by the charging receiving device based on the numerical relationship between the second inductance quality parameter and the first inductance quality parameter, and then based on the target charging power. The charging transmitting device performs wireless charging with the charging receiving device using the received wireless charging parameters.

[0115] In the present disclosure, the charging transmitter device performs wireless charging with dynamic wireless charging parameters, avoiding the situation where the temperature of the foreign object is too high due to always performing wireless charging with the wireless charging parameters corresponding to the maximum charging power, reducing the risk of the wireless charging process, and making the wireless charging process more stable and safe.

[0116] According to an exemplary embodiment, Figure 7 As shown, the wireless charging method in this embodiment includes:

[0117] S701, receiving charging protocol data sent by a charging receiving device, where the charging protocol data includes a first inductance quality parameter;

[0118] S702, determining a second inductor quality parameter;

[0119] S703, determining whether the second inductor quality parameter is greater than or equal to the first inductor quality parameter, if the second inductor quality parameter is greater than or equal to the first inductor quality parameter, executing step S704; if the second inductor quality parameter is less than the first inductor quality parameter, executing step S706;

[0120] S704, sending a second inductance quality parameter to a charging receiving device;

[0121] S705, receiving wireless charging parameters sent by the charging receiving device;

[0122] S706: Send first instruction information to the charging receiving device.

[0123] Among them, steps S701-S705 are the same as those in the above embodiment and will not be repeated here.

[0124] In step S706, if the second inductance quality parameter is less than the first inductance quality parameter, that is, the presence of metal foreign matter between the charging receiving device and the charging transmitting device can be determined by the second inductance quality parameter. In order to avoid damage caused by heating of the metal foreign matter during the wireless charging process, the charging transmitting device sends a first instruction message to the charging receiving device, instructing the charging receiving device to turn off the wireless charging process.

[0125] According to an exemplary embodiment, Figure 8 The wireless charging method in this embodiment includes:

[0126] S801: The charging transmitter device starts the wireless charging process.

[0127] The charging receiving device is placed on the charging transmitting device, and the charging transmitting device is powered on to start the wireless charging process of the charging receiving device. After the charging transmitting device is powered on, the charging transmitting device will send a handshake message to the charging receiving device to inform the charging receiving device that the wireless charging process has begun, so as to start the subsequent handshake process.

[0128] S802: The charging receiving device sends charging protocol data.

[0129] In the initial stage of the wireless charging process, the charging receiving device sends charging protocol data to the charging transmitting device, including the first inductor quality parameter.

[0130] S803: The charging transmitter device calculates a second inductor quality parameter, and determines a numerical relationship between the second inductor quality parameter and the first inductor quality parameter.

[0131] After receiving the first inductance quality parameter, the charging transmitter device calculates the second inductance quality parameter between the charging transmitter device and the charging receiver device during the current wireless charging process, and compares the relationship between the first inductance quality parameter and the second inductance quality parameter.

[0132] S804: The charging transmitting device determines that the second inductor quality parameter is smaller than the first inductor quality parameter.

[0133] S805: The charging transmitting device sends first instruction information to the charging receiving device.

[0134] S806: The charging receiving device turns off the wireless charging process.

[0135] If the charging transmitting device determines that the second inductance quality parameter is less than the first inductance quality parameter, the charging transmitting device sends a first instruction message to the charging receiving device to instruct the charging receiving device to turn off the wireless charging process, thereby avoiding heating of metal foreign objects between the charging transmitting device and the charging receiving device due to the continuous wireless charging process, which may cause safety hazards.

[0136] S807: The charging transmitting device determines that the second inductance quality parameter is greater than or equal to the first inductance quality parameter.

[0137] S808: The charging transmitting device sends the second inductor quality parameter to the charging receiving device.

[0138] S809: The charging receiving device determines a target charging power based on a numerical relationship between the second inductance quality parameter and the first inductance quality parameter.

[0139] If the charging transmitting device determines that the second inductance quality parameter is greater than or equal to the first inductance quality parameter, that is, there may be foreign matter in the edge area between the charging receiving device and the charging transmitting device or it is uncertain whether there is foreign matter, the charging transmitting device sends the second inductance quality parameter to the charging receiving device. After receiving the second inductance quality parameter, the charging receiving device determines the target charging power based on the numerical relationship between the second inductance quality parameter and the first inductance quality parameter. The charging receiving device reduces the charging power to avoid the problem of severe heating of foreign matter during wireless charging.

[0140] S810: The charging receiving device sends wireless charging parameters to the charging transmitting device.

[0141] The charging receiving device sends wireless charging parameters determined based on the target charging power to the charging transmitting device, so that the charging transmitting device can provide wireless charging for the charging receiving device with the wireless charging parameters, ensuring that foreign objects at the edge will not be heated to a very high temperature during the wireless charging process, eliminating safety hazards.

[0142] The exemplary embodiment of the present disclosure provides a wireless charging device, which is applied to a charging receiving device. Fig. 9 As shown, a block diagram of a wireless charging device shown in the present disclosure.

[0143] The block diagram includes: a first sending module 91, a first receiving module 92, and a first determining module 93. The first sending module 91 is used to send charging protocol data to the charging transmitter device, and the charging protocol data includes a first inductance quality parameter, and the first inductance quality parameter is used to characterize the threshold value of the inductance quality in the wireless charging process; the first receiving module 92 is used to receive a second inductance quality parameter sent by the charging transmitter device, and the second inductance quality parameter is used to characterize the inductance quality in the current wireless charging process; the first determining module 93 is used to determine the target charging power based on the numerical relationship between the second inductance quality parameter and the first inductance quality parameter; the first sending module 91 is also used to send wireless charging parameters to the charging transmitter device, wherein the wireless charging parameters are determined based on the target charging power.

[0144] In an exemplary embodiment of the present disclosure, the first determination module 93 is further used to: obtain the difference between the second inductance quality parameter and the first inductance quality parameter as a target adjustment parameter; and obtain a target charging power corresponding to the target adjustment parameter based on a preset threshold and the target adjustment parameter.

[0145] In an exemplary embodiment of the present disclosure, the first determination module 93 is also used to: when the target adjustment parameter is greater than or equal to a first threshold, determine that the target charging power is the maximum charging power allowed in the wireless charging process; when the target adjustment parameter is less than the first threshold and the target adjustment parameter is greater than or equal to a second threshold, based on a preset corresponding relationship, obtain the target charging power corresponding to the target adjustment parameter, wherein the preset corresponding relationship is used to characterize the corresponding relationship between the adjustment parameter and the charging power.

[0146] In an exemplary embodiment of the present disclosure, the difference is greater than or equal to zero, and there is a positive correlation between the target charging power and the difference.

[0147] In an exemplary embodiment of the present disclosure, the first receiving module 92 is further used to: receive first instruction information sent by the charging transmitting device, where the first instruction information is used to instruct the charging receiving device to close the wireless charging process.

[0148] Regarding the wireless charging device in the above embodiment, the specific manner in which each module performs operations has been described in detail in the embodiment of the method, and will not be elaborated here.

[0149] The exemplary embodiment of the present disclosure provides a wireless charging device, which is applied to a charging transmitter device. Fig.10 As shown, a block diagram of a wireless charging device shown in the present disclosure.

[0150] The block diagram includes: a second receiving module 101, a second determining module 102, and a second sending module 103. The second receiving module 101 is used to receive charging protocol data sent by a charging receiving device, and the charging protocol data includes a first inductance quality parameter, and the first inductance quality parameter is used to characterize the threshold value of the inductance quality in the wireless charging process; the second determining module 102 is used to determine the second inductance quality parameter, and the second inductance quality parameter is used to characterize the inductance quality in the current wireless charging process; the second sending module 103 is used to send the second inductance quality parameter to the charging receiving device when the second inductance quality parameter is greater than or equal to the first inductance quality parameter; the second receiving module 102 is also used to receive the wireless charging parameter sent by the charging receiving device, wherein the wireless charging parameter is determined based on the target charging power, and the target charging power is determined based on the numerical relationship between the second inductance quality parameter and the first inductance quality parameter.

[0151] In an exemplary embodiment of the present disclosure, the second sending module 103 is further used to: when the second inductance quality parameter is less than the first inductance quality parameter, send a first instruction message to the charging receiving device, wherein the first instruction message is used to instruct the charging receiving device to turn off the wireless charging process.

[0152] Regarding the wireless charging device in the above embodiment, the specific manner in which each module performs operations has been described in detail in the embodiment of the method, and will not be elaborated here.

[0153] Fig.11 1 is a block diagram of a charging receiving device 1100 according to an exemplary embodiment. For example, the charging receiving device 1100 may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, etc.

[0154] Reference Fig.11 The charge receiving device 1100 may include one or more of the following components: a processing component 1102 , a memory 1104 , a power component 1106 , a multimedia component 1108 , an audio component 1110 , an input / output (I / O) interface 1112 , a sensor component 1114 , and a communication component 1116 .

[0155] The processing component 1102 generally controls the overall operation of the charge receiving device 1100, such as operations associated with display, phone calls, data communications, camera operations, and recording operations. The processing component 1102 may include one or more processors 1120 to execute instructions to complete all or part of the steps of the above-mentioned method. In addition, the processing component 1102 may include one or more modules to facilitate the interaction between the processing component 1102 and other components. For example, the processing component 1102 may include a multimedia module to facilitate the interaction between the multimedia component 1108 and the processing component 1102.

[0156] The memory 1104 is configured to store various types of data to support operations on the charge receiving device 1100. Examples of such data include instructions for any application or method operating on the charge receiving device 1100, contact data, phone book data, messages, pictures, videos, etc. The memory 1104 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk or optical disk.

[0157] The power supply component 1106 provides power to the various components of the charge receiving device 1100. The power supply component 1106 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to the charge receiving device 1100.

[0158] The multimedia component 1108 includes a screen that provides an output interface between the charge receiving device 1100 and the user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundaries of the touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 1108 includes a front camera and / or a rear camera. When the charge receiving device 1100 is in an operating mode, such as a shooting mode or a video mode, the front camera and / or the rear camera may receive external multimedia data. Each front camera and rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.

[0159] The audio component 1110 is configured to output and / or input audio signals. For example, the audio component 1110 includes a microphone (MIC), and when the charging receiving device 1100 is in an operating mode, such as a call mode, a recording mode, and a voice recognition mode, the microphone is configured to receive an external audio signal. The received audio signal can be further stored in the memory 1104 or sent via the communication component 1116. In some embodiments, the audio component 1110 also includes a speaker for outputting an audio signal.

[0160] I / O interface 1112 provides an interface between processing component 1102 and peripheral interface modules, which may be keyboards, click wheels, buttons, etc. These buttons may include but are not limited to: a home button, a volume button, a start button, and a lock button.

[0161] The sensor assembly 1114 includes one or more sensors for providing various aspects of status assessment for the charge receiving device 1100. For example, the sensor assembly 1114 can detect the open / closed state of the charge receiving device 1100, the relative positioning of components, such as the display and keypad of the charge receiving device 1100, the sensor assembly 1114 can also detect the position change of the charge receiving device 1100 or a component of the charge receiving device 1100, the presence or absence of user contact with the charge receiving device 1100, the orientation or acceleration / deceleration of the charge receiving device 1100, and the temperature change of the charge receiving device 1100. The sensor assembly 1114 may include a proximity sensor configured to detect the presence of a nearby object without any physical contact. The sensor assembly 1114 may also include an optical sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 1114 may also include an accelerometer, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

[0162] The communication component 1116 is configured to facilitate wired or wireless communication between the charging receiving device 1100 and other devices. The charging receiving device 1100 can access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof. In an exemplary embodiment, the communication component 1116 receives a broadcast signal or broadcast-related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 1116 also includes a near field communication (NFC) module to facilitate short-range communication. For example, the NFC module can be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology and other technologies.

[0163] In an exemplary embodiment, the charge receiving device 1100 may be implemented by one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components to perform the above methods.

[0164] In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions is also provided, such as a memory 1104 including instructions, and the instructions can be executed by the processor 1120 of the charging receiving device 1100 to complete the above-mentioned wireless charging method. For example, the non-transitory computer-readable storage medium can be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, etc.

[0165] A non-transitory computer-readable storage medium, when instructions in the storage medium are executed by a processor of a charging receiving device, enables a processing device of the charging receiving device to execute the wireless charging method provided by an exemplary embodiment of the present disclosure.

[0166] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the disclosure disclosed herein. The present disclosure is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary techniques in the art that are not disclosed in the present disclosure. The description and examples are to be considered exemplary only, and the true scope and spirit of the present disclosure are indicated by the following claims.

[0167] It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A wireless charging method, characterized in that: Applied to a charging receiving device, the wireless charging method comprises: Sending charging protocol data to a charging transmitter device, wherein the charging protocol data includes a first inductance quality parameter, and the first inductance quality parameter is used to characterize a threshold value of the inductance quality during the wireless charging process; Receiving a second inductance quality parameter sent by the charging transmitter device, where the second inductance quality parameter is used to characterize the inductance quality in the current wireless charging process; determining a target charging power based on a numerical relationship between the second inductor quality parameter and the first inductor quality parameter; Sending wireless charging parameters to the charging transmitting device, wherein the wireless charging parameters are determined based on the target charging power.

2. The wireless charging method according to claim 1, characterized in that: The determining the target charging power based on the numerical relationship between the second inductance quality parameter and the first inductance quality parameter includes: acquiring a difference between the second inductor quality parameter and the first inductor quality parameter as a target adjustment parameter; Based on a preset threshold and the target adjustment parameter, the target charging power corresponding to the target adjustment parameter is obtained.

3. The wireless charging method according to claim 2, characterized in that: The preset threshold includes a first threshold and a second threshold, and obtaining the target charging power corresponding to the target adjustment parameter based on the preset threshold and the target adjustment parameter includes: When the target adjustment parameter is greater than or equal to a first threshold, determining that the target charging power is a maximum charging power allowed in the wireless charging process; When the target adjustment parameter is less than the first threshold and the target adjustment parameter is greater than or equal to the second threshold, the target charging power corresponding to the target adjustment parameter is obtained based on a preset corresponding relationship, wherein the preset corresponding relationship is used to characterize the corresponding relationship between the adjustment parameter and the charging power.

4. The wireless charging method according to claim 3, characterized in that: The wireless charging method further includes: The difference is greater than or equal to zero, and there is a positive correlation between the target charging power and the difference.

5. The wireless charging method according to claim 1, characterized in that: The wireless charging method further includes: Receive first instruction information sent by the charging transmitting device, where the first instruction information is used to instruct the charging receiving device to close the wireless charging process.

6. A wireless charging method, characterized in that: Applied to a charging transmitter device, the wireless charging method comprises: Receiving charging protocol data sent by a charging receiving device, wherein the charging protocol data includes a first inductance quality parameter, and the first inductance quality parameter is used to characterize a threshold value of inductance quality during wireless charging; Determining a second inductor quality parameter, where the second inductor quality parameter is used to characterize the inductor quality in the current wireless charging process; When the second inductance quality parameter is greater than or equal to the first inductance quality parameter, sending the second inductance quality parameter to the charging receiving device; The wireless charging parameter sent by the charging receiving device is received, wherein the wireless charging parameter is determined based on a target charging power, and the target charging power is determined based on a numerical relationship between the second inductance quality parameter and the first inductance quality parameter.

7. The wireless charging method according to claim 6, characterized in that: The wireless charging method further includes: When the second inductance quality parameter is less than the first inductance quality parameter, first instruction information is sent to the charging receiving device, wherein the first instruction information is used to instruct the charging receiving device to turn off the wireless charging process.

8. A wireless charging device, characterized in that: Applied to a charging receiving device, the wireless charging device comprises: A first sending module, used to send charging protocol data to a charging transmitting device, wherein the charging protocol data includes a first inductance quality parameter, and the first inductance quality parameter is used to characterize a threshold value of the inductance quality during the wireless charging process; A first receiving module, used to receive a second inductance quality parameter sent by the charging transmitter device, where the second inductance quality parameter is used to characterize the inductance quality in the current wireless charging process; a first determining module, configured to determine a target charging power based on a numerical relationship between the second inductance quality parameter and the first inductance quality parameter; The first sending module is further used to send wireless charging parameters to the charging transmitting device, wherein the wireless charging parameters are determined based on the target charging power.

9. A wireless charging device, characterized in that: Applied to charging transmitter equipment, the wireless charging device comprises: A second receiving module, configured to receive charging protocol data sent by a charging receiving device, wherein the charging protocol data includes a first inductance quality parameter, and the first inductance quality parameter is used to characterize a threshold value of the inductance quality during the wireless charging process; A second determination module, used to determine a second inductance quality parameter, where the second inductance quality parameter is used to characterize the inductance quality in the current wireless charging process; a second sending module, configured to send the second inductance quality parameter to the charging receiving device when the second inductance quality parameter is greater than or equal to the first inductance quality parameter; The second receiving module is further used to receive the wireless charging parameters sent by the charging receiving device, wherein the wireless charging parameters are determined based on the target charging power, and the target charging power is determined based on the numerical relationship between the second inductance quality parameter and the first inductance quality parameter.

10. A charging receiving device, characterized in that: The charging receiving device comprises: processor; a memory for storing processor-executable instructions; The processor is configured to execute executable instructions in the memory to implement the wireless charging method according to any one of claims 1 to 5.

11. A non-transitory computer-readable storage medium having executable instructions stored thereon, characterized in that: When the executable instruction is executed by the processor, the wireless charging method according to any one of claims 1 to 5 is implemented.

12. A charging transmitter device, characterized in that: The charging transmitter device comprises: processor; a memory for storing processor-executable instructions; The processor is configured to execute executable instructions in the memory to implement the wireless charging method as described in any one of claims 6 or 7.

13. A non-transitory computer-readable storage medium having executable instructions stored thereon, characterized in that: When the executable instruction is executed by the processor, the wireless charging method according to any one of claims 6 or 7 is implemented.

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