CN110912284A - Wireless charging control method and wireless charging assembly - Google Patents
Wireless charging control method and wireless charging assembly Download PDFInfo
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- CN110912284A CN110912284A CN201911127568.9A CN201911127568A CN110912284A CN 110912284 A CN110912284 A CN 110912284A CN 201911127568 A CN201911127568 A CN 201911127568A CN 110912284 A CN110912284 A CN 110912284A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/60—Circuit arrangements or systems for wireless supply or distribution of electric power responsive to the presence of foreign objects, e.g. detection of living beings
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Abstract
The embodiment of the invention discloses a wireless charging control method and a wireless charging assembly, relates to the technical field of communication, and can solve the problem that the accuracy of foreign matter detection of the wireless charging assembly is low. The method comprises the following steps: under the condition that the electronic equipment is in a wireless charging state, if the electronic equipment is detected to move, adjusting the current output power of the charging equipment; detecting the wireless charging assembly to obtain a first detection parameter; and determining whether foreign matters exist between the electronic equipment and the charging equipment or not according to the first detection parameters. The embodiment of the invention is applied to the process of detecting foreign matters by the wireless charging assembly.
Description
Technical Field
The embodiment of the invention relates to the technical field of communication, in particular to a wireless charging control method and a wireless charging assembly.
Background
Generally, when an electronic device is wirelessly charged through a charging device, the electronic device and the charging device may move and a metal foreign object may appear, which affects the charging efficiency of the electronic device. The electronic equipment can judge whether metal foreign matters exist between the electronic equipment and the charging equipment through the foreign matter detection function, and prompt a user when the metal foreign matters exist. Currently, the electronic device may determine whether a metal foreign object is present according to a difference between an input power of the electronic device and an output power of the charging device.
However, in the above method, when the electronic device determines whether the metal foreign object exists, the electronic device is determined by a difference between the input power of the electronic device and the output power of the charging device, and the difference between the input power of the electronic device and the output power of the charging device changes after the electronic device moves, so that the electronic device cannot accurately determine whether the metal foreign object exists, that is, the electronic device has low accuracy in detecting the metal foreign object.
Disclosure of Invention
The embodiment of the invention provides a wireless charging control method and a wireless charging assembly, which can solve the problem of low accuracy of foreign matter detection of electronic equipment.
In order to solve the technical problem, the embodiment of the invention adopts the following technical scheme:
in a first aspect of embodiments of the present invention, a wireless charging control method is provided, where the wireless charging control method is applied to a wireless charging assembly, where the wireless charging assembly includes a charging device and an electronic device, and the wireless charging control method includes: under the condition that the electronic equipment is in a wireless charging state, if the electronic equipment is detected to move, adjusting the current output power of the charging equipment; detecting the wireless charging assembly to obtain a first detection parameter; and determining whether foreign matters exist between the electronic equipment and the charging equipment or not according to the first detection parameters.
In a second aspect of the embodiments of the present invention, there is provided a wireless charging assembly, where the wireless charging assembly includes a charging device and an electronic device, and the wireless charging assembly further includes: the device comprises an adjusting module, a detecting module and a determining module. The adjusting module is used for adjusting the current output power of the charging equipment if the electronic equipment is detected to move under the condition that the electronic equipment is in the wireless charging state. The detection module is used for detecting the wireless charging assembly to obtain a first detection parameter. And the determining module is used for determining whether foreign matters exist between the electronic equipment and the charging equipment according to the first detection parameters obtained by the detecting module.
In a third aspect of the embodiments of the present invention, there is provided a wireless charging assembly, which includes a processor, a memory, and a computer program stored on the memory and executable on the processor, and when the computer program is executed by the processor, the steps of the wireless charging control method according to the first aspect are implemented.
In a fourth aspect of the embodiments of the present invention, a computer-readable storage medium is provided, on which a computer program is stored, and the computer program, when executed by a processor, implements the steps of the wireless charging control method according to the first aspect.
In the embodiment of the present invention, when the electronic device is in the wireless charging state, if it is detected that the electronic device moves, the wireless charging component may control the charging device to adjust the current output power of the charging device, and determine whether a foreign object exists between the electronic device and the charging device according to a first detection parameter obtained by the detection. After the electronic equipment is detected to move, the wireless charging assembly can control the charging equipment to adjust the current output power firstly, then the detection is carried out based on the adjusted output power so as to obtain a first detection parameter, the judgment of the foreign matters is carried out based on the first detection parameter, and the judgment of the foreign matters is not directly carried out according to the parameters obtained by detection after the movement, so that the misjudgment of the wireless charging assembly on the foreign matters can be avoided, and the accuracy of the wireless charging assembly on the detection of the foreign matters can be improved.
Drawings
Fig. 1 is a schematic structural diagram of an android operating system according to an embodiment of the present invention;
fig. 2 is a schematic diagram illustrating a wireless charging control method according to an embodiment of the present invention;
fig. 3 is a second schematic diagram of a wireless charging control method according to an embodiment of the present invention;
fig. 4 is a third schematic diagram illustrating a wireless charging control method according to an embodiment of the present invention;
fig. 5 is a fourth schematic diagram illustrating a wireless charging control method according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a wireless charging assembly according to an embodiment of the present invention;
fig. 7 is a second schematic structural diagram of a wireless charging assembly according to an embodiment of the present invention;
fig. 8 is a third schematic structural diagram of a wireless charging assembly according to an embodiment of the present invention;
fig. 9 is a hardware schematic diagram of an electronic device according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The terms "first" and "second," and the like, in the description and in the claims of embodiments of the present invention are used for distinguishing between different objects and not for describing a particular order of the objects. For example, the first output power and the second output power, etc. are used to distinguish different output powers, and are not used to describe a specific order of the output powers.
In the description of the embodiments of the present invention, the meaning of "a plurality" means two or more unless otherwise specified. For example, a plurality of elements refers to two elements or more.
The term "and/or" herein is an association relationship describing an associated object, and means that there may be three relationships, for example, a display panel and/or a backlight, which may mean: there are three cases of a display panel alone, a display panel and a backlight at the same time, and a backlight alone. The symbol "/" herein denotes a relationship in which the associated object is or, for example, input/output denotes input or output.
In the embodiments of the present invention, words such as "exemplary" or "for example" are used to mean serving as examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "e.g.," an embodiment of the present invention is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "such as" is intended to present concepts related in a concrete fashion.
The embodiment of the invention provides a wireless charging control method and a wireless charging assembly. After the electronic equipment is detected to move, the wireless charging assembly can control the charging equipment to adjust the current output power firstly, then the detection is carried out based on the adjusted output power so as to obtain a first detection parameter, the judgment of the foreign matters is carried out based on the first detection parameter, and the judgment of the foreign matters is not directly carried out according to the parameters obtained by detection after the movement, so that the misjudgment of the wireless charging assembly on the foreign matters can be avoided, and the accuracy of the wireless charging assembly on the detection of the foreign matters can be improved.
The wireless charging control method and the wireless charging assembly provided by the embodiment of the invention can be applied to the process of detecting foreign matters by the wireless charging assembly.
In the embodiment of the present invention, the electronic device in the wireless charging component may be an electronic device with an operating system. The operating system may be an Android (Android) operating system, an ios operating system, or other possible operating systems, and embodiments of the present invention are not limited in particular.
Next, a software environment applied to the wireless charging control method provided by the embodiment of the present invention is described by taking an android operating system as an example.
Fig. 1 is a schematic diagram of an architecture of a possible android operating system according to an embodiment of the present invention. In fig. 1, the architecture of the android operating system includes 4 layers, which are respectively: an application layer, an application framework layer, a system runtime layer, and a kernel layer (specifically, a Linux kernel layer).
The application program layer comprises various application programs (including system application programs and third-party application programs) in an android operating system.
The application framework layer is a framework of the application, and a developer can develop some applications based on the application framework layer under the condition of complying with the development principle of the framework of the application.
The system runtime layer includes libraries (also called system libraries) and android operating system runtime environments. The library mainly provides various resources required by the android operating system. The android operating system running environment is used for providing a software environment for the android operating system.
The kernel layer is an operating system layer of an android operating system and belongs to the bottommost layer of an android operating system software layer. The kernel layer provides kernel system services and hardware-related drivers for the android operating system based on the Linux kernel.
Taking an android operating system as an example, in the embodiment of the present invention, a developer may develop a software program for implementing the wireless charging control method provided in the embodiment of the present invention based on the system architecture of the android operating system shown in fig. 1, so that the wireless charging control method may operate based on the android operating system shown in fig. 1. That is, the processor or the electronic device may implement the wireless charging control method provided by the embodiment of the present invention by running the software program in the android operating system.
The electronic device in the embodiment of the invention can be a mobile terminal device and can also be a non-mobile terminal device. For example, the mobile terminal device may be a mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted terminal device, a wearable device, an ultra-mobile personal computer (UMPC), a netbook or a Personal Digital Assistant (PDA), and the like, and the non-mobile terminal device may be a Personal Computer (PC), a Television (TV), a teller machine or a self-service machine, and the like, and the embodiment of the present invention is not particularly limited.
Fig. 2 shows a flowchart of a wireless charging control method provided in an embodiment of the present invention, and the method may be applied to an electronic device having an android operating system shown in fig. 1. As shown in fig. 2, the wireless charging control method according to the embodiment of the present invention may include steps 201 to 203 described below.
In an embodiment of the present invention, the wireless charging component includes a charging device and an electronic device.
In the embodiment of the invention, the electronic equipment can be wirelessly connected with the charging equipment so as to wirelessly charge through the charging equipment, so that the electronic equipment is in a wireless charging state.
Optionally, in the embodiment of the present invention, after the electronic device and the charging device establish the wireless connection, the electronic device may perform high-power wireless charging through the charging device.
In the embodiment of the present invention, after the electronic device and the charging device establish a wireless connection, the charging device may send a power signal to the electronic device, so that the electronic device receives the power signal, thereby implementing wireless charging.
It should be noted that the above "whether the electronic device moves" can be understood as: whether the electronic device is moving relative to the charging device.
Optionally, in this embodiment of the present invention, the wireless charging component may monitor whether the electronic device moves in real time through a motion sensor (for example, a gravity sensor or a gyroscope) of the electronic device.
Optionally, in the embodiment of the present invention, the wireless charging component may control the charging device to adjust the current output power of the charging device through the electronic device.
Optionally, in the embodiment of the present invention, if the electronic device detects that the electronic device moves, the electronic device sends a power adjustment instruction to the charging device to instruct the charging device to adjust the current output power of the charging device.
Optionally, in this embodiment of the present invention, the electronic device may control the charging device to decrease the current output power of the charging device.
Optionally, in this embodiment of the present invention, the electronic device may control the charging device to adjust the current output power of the charging device to a first output power, where the first output power is smaller than the current output power of the charging device.
Optionally, in this embodiment of the present invention, the electronic device may control the charging device to adjust the current output power of the charging device to a third output power, where the third output power is smaller than the current output power of the charging device.
Optionally, in this embodiment of the present invention, the electronic device may send a first adjustment instruction to the charging device to instruct the charging device to adjust the current output power of the charging device to the first output power or the third output power.
Optionally, in the embodiment of the present invention, when the electronic device is in the wireless charging state, if the wireless charging component detects that the electronic device is not moving, the wireless charging component may control the charging device to continue outputting the power signal with the current output power, so that the electronic device may continue to perform wireless charging.
Optionally, in an embodiment of the present invention, the first detection parameter is any one of: a first power difference value and a quality factor of a primary coil of a charging device; the first power difference is a difference between the adjusted first output power and the first input power of the electronic device.
Optionally, in this embodiment of the present invention, when the electronic device controls the charging device to adjust the current output power of the charging device to the first output power, the electronic device may detect the charging device and the electronic device, and obtain the first detection parameter (i.e., the first power difference value) according to a difference between the first output power and the first input power of the electronic device.
Optionally, in this embodiment of the present invention, when the electronic device controls the charging device to adjust the current output power of the charging device to the third output power (for example, the third output power is 0), the electronic device may detect the charging device to obtain the first detection parameter (i.e., the quality factor of the primary coil of the charging device).
Optionally, in this embodiment of the present invention, the electronic device in the wireless charging assembly may detect whether a foreign object exists between the electronic device and the charging device according to the first detection parameter in a power loss foreign object detection manner or a quality factor foreign object detection manner (i.e., a Q value foreign object detection manner).
The power loss foreign matter detection method may be understood as follows: the electronic device determines a power loss in a charging process according to a difference value between the output power of the charging device and the first input power of the electronic device, and determines whether foreign matter exists between the electronic device and the charging device according to the power loss. The Q value foreign matter detection method may be understood as follows: the electronic device determines whether a foreign object exists between the electronic device and the charging device according to the quality factor of the primary coil of the charging device.
It can be understood that the first input power of the electronic device changes with the change of the output power of the charging device, that is, the current output power before the adjustment is different from the first input power of the electronic device corresponding to the current output power after the adjustment, that is, the current output power before the adjustment corresponds to one first input power, and the current output power after the adjustment corresponds to one first input power.
Optionally, in this embodiment of the present invention, when the electronic device controls the charging device to adjust the current output power of the charging device to the first output power, the electronic device may determine whether a foreign object exists between the electronic device and the charging device according to a difference between the first output power and the first input power of the electronic device.
It can be understood that after the electronic device moves, the electronic device may control the charging device to reduce the current output power of the charging device to the first output power, so as to reduce the difference between the output power of the charging device and the first input power of the electronic device, and thus perform the determination of the foreign object according to the reduced difference, and may avoid the erroneous determination of the foreign object caused by the large difference in power due to the movement of the electronic device.
Optionally, in this embodiment of the present invention, when the electronic device controls the charging device to adjust the current output power of the charging device to the third output power (for example, the third output power is 0), the electronic device may determine whether a foreign object exists between the electronic device and the charging device according to a quality factor of a primary coil of the charging device.
It can be understood that after the electronic device moves, the electronic device may control the charging device to reduce the current output power of the charging device to the third output power, so that the charging device stops outputting the power signal, so as to avoid that the power signal output by the charging device interferes with the measurement result of the quality factor of the primary coil of the charging device in the process that the charging device measures the quality factor of the primary coil of the charging device, and thus the charging device may accurately measure the quality factor of the primary coil of the charging device.
Optionally, in an embodiment of the present invention, the foreign matter may be a metal foreign matter or a non-metal foreign matter.
Optionally, in the embodiment of the present invention, the electronic device in the wireless charging assembly may detect whether a foreign object exists between the electronic device and the charging device in real time.
It should be noted that, for a specific method for determining whether a foreign object exists between the electronic device and the charging device by the wireless charging assembly, details will be described in the following embodiments, and details are not repeated herein.
The embodiment of the invention provides a wireless charging control method, wherein under the condition that an electronic device is in a wireless charging state, if the electronic device is detected to move, a wireless charging assembly can control the charging device to adjust the current output power of the charging device, and whether foreign matters exist between the electronic device and the charging device is determined according to a first detection parameter obtained by detection. After the electronic equipment is detected to move, the wireless charging assembly can control the charging equipment to adjust the current output power firstly, then the detection is carried out based on the adjusted output power so as to obtain a first detection parameter, the judgment of the foreign matters is carried out based on the first detection parameter, and the judgment of the foreign matters is not directly carried out according to the parameters obtained by detection after the movement, so that the misjudgment of the wireless charging assembly on the foreign matters can be avoided, and the accuracy of the wireless charging assembly on the detection of the foreign matters can be improved.
Optionally, in a possible implementation manner of the embodiment of the present invention, the first detection parameter includes a first power difference. Referring to fig. 2, as shown in fig. 3, the step 201 may be specifically realized by the step 201a described below, the step 202 may be specifically realized by the steps 202a and 202b described below, and the step 203 may be specifically realized by the steps 203a and 203b (or 203c) described below.
In an embodiment of the present invention, the first output power is smaller than a current output power of the charging device.
Optionally, in this embodiment of the present invention, the first output power may be a minimum output power of the charging device.
Optionally, in this embodiment of the present invention, the wireless charging component may obtain the first input power of the electronic device through the electronic device.
It should be noted that after the wireless charging component adjusts the current output power of the charging device, the current input power of the electronic device also changes accordingly, that is, the first input power in step 202a is: after the wireless charging assembly adjusts the current output power of the charging device to the first output power, the current input power of the electronic device is obtained.
In an embodiment of the invention, the first power difference is a difference between the first output power and the first input power of the electronic device.
It can be understood that, the electronic device may adjust the current output power of the charging device to the minimum output power of the charging device by controlling the charging device, and the first input power of the electronic device may be correspondingly reduced, so that the difference between the output power of the charging device and the first input power of the electronic device is reduced to the minimum value.
In step 203a, the wireless charging component determines whether the first power difference is greater than or equal to a first threshold.
It can be understood that, if the difference between the first output power and the first input power of the electronic device is greater than or equal to the first threshold, it may be considered that the first input power of the electronic device is reduced by a relatively large amount, that is, an extra power loss exists during the wireless charging process, so that the wireless charging component determines that a foreign object (e.g., a metal foreign object) exists between the electronic device and the charging device.
It is understood that the charging device may output the power signal at the first output power after adjusting the current output power to the first output power, so that the electronic device may receive the power signal based on the first output power.
Optionally, in this embodiment of the present invention, a ratio between the input power of the electronic device and the input power of the charging device is related to the charging efficiency of the charging device.
Optionally, in this embodiment of the present invention, the first threshold may be a threshold preset by the electronic device.
It is understood that if the difference between the first output power and the first input power of the electronic device is smaller than the first threshold, the first input power of the electronic device may be considered to be not reduced or reduced by a smaller amount, that is, there is almost no extra power loss during the wireless charging process, so that the electronic device determines that there is no foreign object (e.g., metal foreign object) between the electronic device and the charging device.
Optionally, in this embodiment of the present invention, if the wireless charging component determines that there is no foreign object between the electronic device and the charging device, the wireless charging component may adjust the first output power to a second output power, so that the charging device continues to output the power signal at the second output power, where the second output power is greater than the first output power.
In the embodiment of the invention, the wireless charging assembly can control the charging device to adjust the first output power to the second output power through the electronic device.
Optionally, in this embodiment of the present invention, the second output power may be: the charging device adjusts the output power before the current output power.
In the embodiment of the invention, after the electronic equipment is detected to move, the wireless charging component can control the charging equipment to reduce the current output power so as to reduce the difference between the output power and the input power, and then the foreign matter between the electronic equipment and the charging equipment is determined under the condition that the reduced difference is greater than or equal to the first threshold (namely, extra power loss exists in the wireless charging process), so that the accuracy of the wireless charging component in detecting the foreign matter can be improved.
In the embodiment of the invention, after the electronic device is detected to move, the wireless charging component can control the charging device to reduce the current output power so as to reduce the difference between the output power and the input power, and then determine that no foreign object exists between the electronic device and the charging device under the condition that the reduced difference is smaller than the first threshold (namely that no extra power loss exists in the wireless charging process), so that the accuracy of the wireless charging component in detecting the foreign object can be improved.
It can be understood that, in the process of wirelessly charging the electronic device, if a foreign object enters between the electronic device and the charging device, the wireless charging component can detect the foreign object in time, so as to avoid the loss of charging power caused by the foreign object, and avoid the temperature rise of the foreign object caused by the heating of the foreign object by the loss power.
Optionally, in another possible implementation manner of the embodiment of the present invention, the first detection parameter includes a quality factor of a primary coil of the charging device. Referring to fig. 2, as shown in fig. 4, the step 201 may be specifically realized by a step 201b described below, the step 202 may be specifically realized by a step 202c described below, and the step 203 may be specifically realized by steps 203d and 203e (or 203f) described below.
It can be understood that in the case where the electronic device in the wireless charging assembly controls the charging device to adjust the current output power of the charging device to 0, the charging device stops outputting the power signal (i.e., the electronic device stops charging).
Optionally, in this embodiment of the present invention, in a case that the electronic device in the wireless charging assembly controls the charging device to stop outputting the power signal (that is, the electronic device stops charging), the electronic device may send a measurement instruction to the charging device, so that the charging device may measure the quality factor of the primary coil of the charging device according to the measurement instruction, and send a measurement result to the electronic device.
It should be noted that, for a specific method for measuring the quality factor of the primary coil of the charging device by the charging device, reference may be made to related descriptions in the prior art, and details are not repeated in the embodiments of the present invention.
It can be understood that, after the electronic device moves, the wireless charging component may control the charging device to stop outputting the power signal (i.e., the electronic device stops charging), so that the measurement result of the quality factor of the primary coil of the charging device is not interfered by the power signal output by the charging device, and thus the charging device may accurately measure the quality factor of the primary coil of the charging device.
In step 203d, the wireless charging component determines whether the quality factor is less than or equal to a second threshold.
Optionally, in this embodiment of the present invention, the wireless charging component may determine, by the electronic device, whether the quality factor of the primary coil of the charging device is less than or equal to the second threshold.
In step 203e, in the case that the quality factor is less than or equal to the second threshold, the wireless charging component determines that a foreign object exists between the electronic device and the charging device.
In an embodiment of the present invention, after detecting that the charging device stops outputting the power signal, the electronic device in the wireless charging assembly may send an instruction to the charging device to instruct the charging device to measure the quality factor of the primary coil of the charging device; the charging apparatus may transmit the measurement result to the electronic apparatus after the measurement, so that the electronic apparatus may make a judgment of the foreign object based on the measurement result.
Optionally, in this embodiment of the present invention, the quality factor of the primary coil of the charging device is related to an inductance value and a resistance value of the coil of the charging device; if the quality factor of the primary coil of the charging device is less than or equal to the second threshold, it is determined that the inductance of the primary coil of the charging device decreases and the equivalent resistance of the primary coil of the charging device increases, thereby determining that a foreign object exists between the electronic device and the charging device.
In step 203f, in the case that the quality factor is greater than the second threshold, the wireless charging component determines that no foreign object exists between the electronic device and the charging device.
It is understood that if the quality factor of the primary coil of the charging device is greater than the second threshold, it is determined that the inductance of the coil of the charging device is not decreased and the equivalent resistance of the coil of the charging device is not increased, thereby determining that there is no foreign object between the electronic device and the charging device.
Optionally, in this embodiment of the present invention, if the wireless charging component determines that there is no foreign object between the electronic device and the charging device, the wireless charging component may control the charging device to adjust the current output power of the charging device to a fourth output power, so that the charging device outputs a power signal with the fourth output power, where the fourth output power is greater than the current output power of the charging device.
Optionally, in this embodiment of the present invention, the fourth output power may be: the charging device adjusts the output power before the current output power.
In the embodiment of the invention, after the electronic equipment is detected to move, the wireless charging assembly can control the charging equipment to stop outputting the power signal, so that the measurement of the quality factor of the primary coil of the charging equipment is not interfered by the power signal output by the charging equipment, the charging equipment can accurately measure the quality factor of the primary coil of the charging equipment, and then the foreign matter is determined to exist between the electronic equipment and the charging equipment under the condition that the quality factor of the primary coil of the charging equipment is smaller than or equal to the second threshold value, so that the accuracy of the wireless charging assembly in detecting the foreign matter can be improved.
In the embodiment of the invention, after the electronic equipment is detected to move, the wireless charging assembly can control the charging equipment to stop outputting the power signal, so that the measurement of the quality factor of the primary coil of the charging equipment is not interfered by the power signal output by the charging equipment, the charging equipment can accurately measure the quality factor of the primary coil of the charging equipment, and then under the condition that the quality factor of the primary coil of the charging equipment is greater than the second threshold value, the fact that no foreign matter exists between the electronic equipment and the charging equipment is determined, so that the accuracy of the wireless charging assembly in detecting the foreign matter can be improved.
Optionally, in the embodiment of the present invention, after the step 203b or the step 203e, the wireless charging control method provided in the embodiment of the present invention may further include the following step 204.
And step 204, the wireless charging component prompts a user that foreign matters exist between the electronic equipment and the charging equipment through the electronic equipment according to a preset prompting mode.
In an embodiment of the present invention, the preset prompting manner includes at least one of the following: a prompt message output mode, a screen flashing mode, a vibration mode and a preset audio playing mode.
Optionally, in the embodiment of the present invention, a user may perform an input to the electronic device and/or the charging device according to a preset prompting manner, so that the charging device stops outputting the power signal, thereby stopping performing the wireless charging.
Optionally, in the embodiment of the present invention, a user may perform an input on a foreign object between the electronic device and the charging device according to a preset prompting manner, so that the first input power of the electronic device is increased.
Optionally, in a case that a difference between the first output power and the first input power of the electronic device is greater than or equal to a first threshold, the electronic device may control the charging device to stop outputting the power signal to stop performing the wireless charging.
In the embodiment of the invention, under the condition that the foreign matter exists between the electronic equipment and the charging equipment, the electronic equipment can effectively prompt a user that the foreign matter exists between the electronic equipment and the charging equipment according to a preset prompting mode, so that the user can take effective solving measures, and the use experience of the user is improved.
Optionally, in the embodiment of the present invention, as shown in fig. 5 with reference to fig. 2, before "after the electronic device is detected to move and the wireless charging component adjusts the current output power of the charging device" in step 201, the wireless charging control method provided in the embodiment of the present invention may further include step 301 described below, and step 201 may be specifically implemented by step 201c described below.
In an embodiment of the invention, the first charging efficiency value is a charging efficiency value after the electronic device moves.
Optionally, in this embodiment of the present invention, the wireless charging component may obtain the first charging efficiency value of the electronic device through the electronic device.
Optionally, in this embodiment of the present invention, when the electronic device detects that the electronic device moves, the electronic device may obtain a current output power of the charging device from the charging device, and calculate a first charging efficiency value according to a first input power of the electronic device (i.e., an input power after the electronic device moves) and the current output power of the charging device.
In an embodiment of the invention, the second charging efficiency is a charging efficiency before the electronic device moves.
Optionally, in an embodiment of the present invention, when the first detection parameter includes a first power difference, if the first charging efficiency value is lower than the second charging efficiency value, the wireless charging component may control the charging device through the electronic device to adjust a current output power of the charging device to a first output power, and determine whether a metal foreign object exists between the electronic device and the charging device according to a difference between the first output power and a first input power of the electronic device.
Optionally, in an embodiment of the present invention, when the first detection parameter is a quality factor of a primary coil of the charging device, if the first charging efficiency value is lower than the second charging efficiency value, the wireless charging component may control the charging device to adjust the current output power of the charging device to a third output power (i.e., 0) through the electronic device, so that the charging device stops outputting the power signal, and determine whether a metal foreign object exists between the electronic device and the charging device according to the quality factor of the primary coil of the charging device.
It should be noted that, after the wireless charging component detects that the electronic device moves, a foreign object may enter between the electronic device and the charging device, but the foreign object may be a non-metal foreign object, that is, the foreign object enters between the electronic device and the charging device, and no eddy current is generated, so that no charging power is lost. Therefore, after the wireless charging assembly detects that the electronic device moves, the charging efficiency value (namely, the first charging efficiency value) of the electronic device after the electronic device moves can be obtained, and whether the charging efficiency value of the electronic device changes after the electronic device moves is judged; if the charging efficiency value of the electronic equipment is increased after the electronic equipment moves, continuing to perform wireless charging; if the charging efficiency value of the electronic equipment is reduced after the electronic equipment moves, whether a metal foreign body exists between the electronic equipment and the charging equipment is determined according to the first detection parameter.
Optionally, in the embodiment of the present invention, the step 201c may be replaced with the step 201d described below.
Step 201d, if the first charging efficiency value is higher than or equal to the second charging efficiency value, the wireless charging component controls the charging device to continue outputting the power signal.
It can be understood that, after the electronic device determines that the movement occurs, if the charging efficiency value of the electronic device is not decreased, the charging device may continue to output the power signal at the current output power, so that the electronic device continues to perform wireless charging.
In the embodiment of the invention, after the electronic equipment is detected to move, the wireless charging assembly firstly judges whether the charging efficiency value of the electronic equipment is reduced or not, determines that foreign matters possibly exist between the electronic equipment and the charging equipment under the condition that the charging efficiency value of the electronic equipment is reduced, and then further judges the foreign matters based on the first detection parameter, so that the accuracy of the wireless charging assembly in detecting the foreign matters can be improved.
It should be noted that, in the embodiment of the present invention, the above-mentioned fig. 3 to fig. 5 are all described by way of example with reference to fig. 2, and do not limit the embodiment of the present invention in any way. It is understood that, in the practical implementation, fig. 3 to 5 can also be implemented in combination with any other drawing which can be combined.
Fig. 6 shows a schematic diagram of a possible structure of a wireless charging assembly involved in the embodiment of the present invention, where the wireless charging assembly includes a charging device and an electronic device. As shown in fig. 6, the wireless charging assembly 90 may include: an adjustment module 91, a detection module 92 and a determination module 93.
The adjusting module 91 is configured to, when the electronic device is in a wireless charging state, adjust the current output power of the charging device if it is detected that the electronic device moves. The detection module 92 is configured to detect the wireless charging component to obtain a first detection parameter. And a determining module 93, configured to determine whether a foreign object exists between the electronic device and the charging device according to the first detection parameter obtained by the detecting module 92.
In a possible implementation manner, the first detection parameter includes a first power difference value. The adjusting module 91 is specifically configured to adjust the current output power of the charging device to a first output power, where the first output power is smaller than the current output power. The detection module 92 is specifically configured to obtain a first input power of the electronic device; and determining a first power difference value according to the first output power and the first input power of the electronic device. The determining module 93 is specifically configured to determine that a foreign object exists between the electronic device and the charging device when the first power difference is greater than or equal to the first threshold; alternatively, in a case where the first power difference value is smaller than the first threshold value, it is determined that no foreign object is present between the electronic device and the charging device.
In a possible implementation manner, the first detection parameter includes: quality factor of the primary coil of the charging device. The adjusting module 91 is specifically configured to adjust the current output power of the charging device to 0. The detection module 92 is specifically configured to detect a primary coil of the charging device to obtain a quality factor. The determining module 93 is specifically configured to determine that no foreign object exists between the electronic device and the charging device when the quality factor obtained by the detecting module 92 is greater than the second threshold; alternatively, in the case where the quality factor obtained by the detection module 92 is less than or equal to the second threshold, it is determined that foreign matter exists between the electronic device and the charging device.
In one possible implementation manner, referring to fig. 6, as shown in fig. 7, the wireless charging component 90 may further include: a prompt module 94. The prompting module 94 is configured to prompt the user that a foreign object exists between the electronic device and the charging device according to a preset prompting manner through the electronic device after the determining module 93 determines that the foreign object exists between the electronic device and the charging device. Wherein, the preset prompting mode comprises at least one of the following items: a prompt message output mode, a screen flashing mode, a vibration mode and a preset audio playing mode.
In a possible implementation manner, the adjusting module 91 is further configured to adjust the first output power to a second output power after the determining module 93 determines that no foreign object exists between the electronic device and the charging device, where the second output power is greater than the first output power.
In one possible implementation manner, referring to fig. 6, as shown in fig. 8, the wireless charging component 90 may further include: an acquisition module 95. The obtaining module 95 is configured to obtain a first charging efficiency of the electronic device after detecting that the electronic device moves and before the adjusting module 91 adjusts the current output power of the charging device. The adjusting module 91 is specifically configured to adjust the current output power of the charging device when the first charging efficiency acquired by the acquiring module 95 is lower than the second charging efficiency. The second charging efficiency is a charging efficiency before the electronic device moves.
The wireless charging component provided by the embodiment of the invention can realize each process realized by the wireless charging component in the method embodiment, and the detailed description is not repeated here in order to avoid repetition.
The embodiment of the invention provides a wireless charging assembly, which can control a charging device to adjust the current output power after detecting that an electronic device moves, then carry out detection based on the adjusted output power to obtain a first detection parameter, and then carry out judgment on a foreign object based on the first detection parameter instead of directly carrying out judgment on the foreign object according to the detected parameter after moving, so that misjudgment of the wireless charging assembly on the foreign object can be avoided, and the accuracy of the wireless charging assembly on the detection of the foreign object can be improved.
Fig. 9 is a hardware schematic diagram of an electronic device in a wireless charging assembly implementing various embodiments of the invention. As shown in fig. 9, electronic device 100 includes, but is not limited to: radio frequency unit 101, network module 102, audio output unit 103, input unit 104, sensor 105, display unit 106, user input unit 107, interface unit 108, memory 109, processor 110, and power supply 111.
It should be noted that the electronic device structure shown in fig. 9 does not constitute a limitation of the electronic device, and the electronic device may include more or less components than those shown in fig. 9, or combine some components, or arrange different components, as will be understood by those skilled in the art. In the embodiment of the present invention, the electronic device includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted terminal, a wearable device, a pedometer, and the like.
The processor 110 is configured to, when the electronic device is in a wireless charging state, adjust a current output power of the charging device if the electronic device is detected to move; detecting the wireless charging assembly to obtain a first detection parameter; and determining whether foreign matters exist between the electronic equipment and the charging equipment according to the first detection parameter.
The embodiment of the invention provides a wireless charging assembly, which can control a charging device to adjust the current output power after detecting that an electronic device moves, then carry out detection based on the adjusted output power to obtain a first detection parameter, and then carry out judgment on a foreign object based on the first detection parameter instead of directly carrying out judgment on the foreign object according to the detected parameter after moving, so that misjudgment of the wireless charging assembly on the foreign object can be avoided, and the accuracy of the wireless charging assembly on the detection of the foreign object can be improved.
It should be understood that, in the embodiment of the present invention, the radio frequency unit 101 may be used for receiving and sending signals during a message transmission or call process, and specifically, after receiving downlink data from a base station, the downlink data is processed by the processor 110; in addition, the uplink data is transmitted to the base station. Typically, radio frequency unit 101 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. In addition, the radio frequency unit 101 can also communicate with a network and other devices through a wireless communication system.
The electronic device provides wireless broadband internet access to the user via the network module 102, such as assisting the user in sending and receiving e-mails, browsing web pages, and accessing streaming media.
The audio output unit 103 may convert audio data received by the radio frequency unit 101 or the network module 102 or stored in the memory 109 into an audio signal and output as sound. Also, the audio output unit 103 may also provide audio output related to a specific function performed by the electronic apparatus 100 (e.g., a call signal reception sound, a message reception sound, etc.). The audio output unit 103 includes a speaker, a buzzer, a receiver, and the like.
The input unit 104 is used to receive an audio or video signal. The input Unit 104 may include a Graphics Processing Unit (GPU) 1041 and a microphone 1042, and the Graphics processor 1041 processes image data of a still picture or video obtained by an image capturing device (e.g., a camera) in a video capturing mode or an image capturing mode. The processed image frames may be displayed on the display unit 106. The image frames processed by the graphic processor 1041 may be stored in the memory 109 (or other storage medium) or transmitted via the radio frequency unit 101 or the network module 102. The microphone 1042 may receive sound and may be capable of processing such sound into audio data. The processed audio data may be converted into a format output transmittable to a mobile communication base station via the radio frequency unit 101 in case of a phone call mode.
The electronic device 100 also includes at least one sensor 105, such as a light sensor, motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor that can adjust the brightness of the display panel 1061 according to the brightness of ambient light, and a proximity sensor that can turn off the display panel 1061 and/or the backlight when the electronic device 100 is moved to the ear. As one type of motion sensor, an accelerometer sensor can detect the magnitude of acceleration in each direction (generally three axes), detect the magnitude and direction of gravity when stationary, and can be used to identify the posture of an electronic device (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), and vibration identification related functions (such as pedometer, tapping); the sensors 105 may also include fingerprint sensors, pressure sensors, iris sensors, molecular sensors, gyroscopes, barometers, hygrometers, thermometers, infrared sensors, etc., which are not described in detail herein.
The display unit 106 is used to display information input by a user or information provided to the user. The Display unit 106 may include a Display panel 1061, and the Display panel 1061 may be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like.
The user input unit 107 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the electronic device. Specifically, the user input unit 107 includes a touch panel 1071 and other input devices 1072. Touch panel 1071, also referred to as a touch screen, may collect touch operations by a user on or near the touch panel 1071 (e.g., operations by a user on or near touch panel 1071 using a finger, stylus, or any suitable object or attachment). The touch panel 1071 may include two parts of a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 110, and receives and executes commands sent by the processor 110. In addition, the touch panel 1071 may be implemented in various types, such as a resistive type, a capacitive type, an infrared ray, and a surface acoustic wave. In addition to the touch panel 1071, the user input unit 107 may include other input devices 1072. Specifically, other input devices 1072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which are not described in detail herein.
Further, the touch panel 1071 may be overlaid on the display panel 1061, and when the touch panel 1071 detects a touch operation thereon or nearby, the touch panel 1071 transmits the touch operation to the processor 110 to determine the type of the touch event, and then the processor 110 provides a corresponding visual output on the display panel 1061 according to the type of the touch event. Although in fig. 9, the touch panel 1071 and the display panel 1061 are two independent components to implement the input and output functions of the electronic device, in some embodiments, the touch panel 1071 and the display panel 1061 may be integrated to implement the input and output functions of the electronic device, and is not limited herein.
The interface unit 108 is an interface for connecting an external device to the electronic apparatus 100. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input/output (I/O) port, a video I/O port, an earphone port, and the like. The interface unit 108 may be used to receive input (e.g., data information, power, etc.) from an external device and transmit the received input to one or more elements within the electronic apparatus 100 or may be used to transmit data between the electronic apparatus 100 and the external device.
The memory 109 may be used to store software programs as well as various data. The memory 109 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. Further, the memory 109 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.
The processor 110 is a control center of the electronic device, connects various parts of the entire electronic device using various interfaces and lines, performs various functions of the electronic device and processes data by operating or executing software programs and/or modules stored in the memory 109 and calling data stored in the memory 109, thereby performing overall monitoring of the electronic device. Processor 110 may include one or more processing units; alternatively, the processor 110 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into the processor 110.
The electronic device 100 may further include a power supply 111 (e.g., a battery) for supplying power to each component, and optionally, the power supply 111 may be logically connected to the processor 110 through a power management system, so as to implement functions of managing charging, discharging, and power consumption through the power management system.
In addition, the electronic device 100 includes some functional modules that are not shown, and are not described in detail herein.
Optionally, an embodiment of the present invention further provides an electronic device, which includes the processor 110 shown in fig. 9, the memory 109, and a computer program stored in the memory 109 and capable of running on the processor 110, where the computer program, when executed by the processor 110, implements the processes of the foregoing method embodiment, and can achieve the same technical effect, and details are not described here to avoid repetition.
The embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements the processes of the method embodiments, and can achieve the same technical effects, and in order to avoid repetition, the details are not repeated here. The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling an electronic device (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (10)
1. A wireless charging control method is applied to a wireless charging assembly, the wireless charging assembly comprises a charging device and an electronic device, and the method comprises the following steps:
under the condition that the electronic equipment is in a wireless charging state, if the electronic equipment is detected to move, adjusting the current output power of the charging equipment;
detecting the wireless charging assembly to obtain a first detection parameter;
and determining whether foreign matters exist between the electronic equipment and the charging equipment or not according to the first detection parameter.
2. The method of claim 1, wherein the first detection parameter comprises a first power difference value;
the adjusting the current output power of the charging device includes:
adjusting the current output power of the charging equipment to a first output power, wherein the first output power is smaller than the current output power;
the pair the wireless subassembly that charges detects, obtains first detection parameter, includes:
acquiring first input power of the electronic equipment;
determining the first power difference value according to the first output power and a first input power of the electronic equipment;
the determining whether foreign matter exists between the electronic device and the charging device according to the first detection parameter includes:
determining that a foreign object exists between the electronic device and the charging device if the first power difference value is greater than or equal to a first threshold value;
determining that no foreign object exists between the electronic device and the charging device if the first power difference value is less than the first threshold.
3. The method of claim 1, wherein the first detection parameter comprises: a quality factor of a primary coil of the charging device;
the adjusting the current output power of the charging device includes:
adjusting the current output power of the charging device to 0;
the pair the wireless subassembly that charges detects, obtains first detection parameter, includes:
detecting a primary coil of the charging equipment to obtain the quality factor;
the determining whether foreign matter exists between the electronic device and the charging device according to the first detection parameter includes:
determining that a foreign object is not present between the electronic device and the charging device if the quality factor is greater than a second threshold;
determining that foreign matter exists between the electronic device and the charging device if the quality factor is less than or equal to the second threshold.
4. The method of claim 2 or 3, wherein after determining that a foreign object is present between the electronic device and the charging device, the method further comprises:
prompting a user that a foreign matter exists between the electronic equipment and the charging equipment through the electronic equipment according to a preset prompting mode;
wherein the preset prompting mode comprises at least one of the following items: a prompt message output mode, a screen flashing mode, a vibration mode and a preset audio playing mode.
5. The method of claim 2, wherein after determining that no foreign object is present between the electronic device and the charging device, the method further comprises:
and adjusting the first output power to a second output power, wherein the second output power is larger than the first output power.
6. The method of claim 1, wherein after detecting the movement of the electronic device and before adjusting the current output power of the charging device, the method further comprises:
acquiring a first charging efficiency of the electronic equipment;
the adjusting the current output power of the charging device includes:
under the condition that the first charging efficiency is lower than the second charging efficiency, adjusting the current output power of the charging equipment;
wherein the second charging efficiency is a charging efficiency before the electronic device moves.
7. A wireless charging assembly, the wireless charging assembly includes battery charging outfit and electronic equipment, its characterized in that, the wireless charging assembly includes: the device comprises an adjusting module, a detecting module and a determining module;
the adjusting module is used for adjusting the current output power of the charging equipment if the electronic equipment is detected to move under the condition that the electronic equipment is in a wireless charging state;
the detection module is used for detecting the wireless charging assembly to obtain a first detection parameter;
the determining module is configured to determine whether a foreign object exists between the electronic device and the charging device according to the first detection parameter obtained by the detecting module.
8. The wireless charging assembly of claim 7, wherein the first detection parameter comprises a first power difference value;
the adjusting module is specifically configured to adjust a current output power of the charging device to a first output power, where the first output power is smaller than the current output power;
the detection module is specifically configured to obtain a first input power of the electronic device; determining the first power difference value according to the first output power and the first input power of the electronic equipment;
the determining module is specifically configured to determine that a foreign object exists between the electronic device and the charging device when the first power difference is greater than or equal to a first threshold; or, in a case where the first power difference value is smaller than the first threshold, it is determined that there is no foreign object between the electronic device and the charging device.
9. The wireless charging assembly of claim 7, wherein the first detection parameter comprises: a quality factor of a primary coil of the charging device;
the adjusting module is specifically configured to adjust the current output power of the charging device to 0;
the detection module is specifically configured to detect a primary coil of the charging device to obtain the quality factor;
the determining module is specifically configured to determine that no foreign object exists between the electronic device and the charging device when the quality factor is greater than a second threshold; alternatively, in a case where the quality factor is less than or equal to the second threshold value, it is determined that foreign matter exists between the electronic device and the charging device.
10. The wireless charging assembly of claim 7, further comprising: an acquisition module;
the obtaining module is configured to obtain a first charging efficiency of the electronic device after detecting that the electronic device moves and before adjusting a current output power of the charging device;
the adjusting module is specifically configured to adjust the current output power of the charging device when the first charging efficiency is lower than the second charging efficiency;
wherein the second charging efficiency is a charging efficiency before the electronic device moves.
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| WO2022267961A1 (en) * | 2021-06-21 | 2022-12-29 | 长城汽车股份有限公司 | Wireless charging control method and device, and vehicle |
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