CN109755976B - Wireless charging method, device and storage medium - Google Patents
Wireless charging method, device and storage medium Download PDFInfo
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- CN109755976B CN109755976B CN201711067995.3A CN201711067995A CN109755976B CN 109755976 B CN109755976 B CN 109755976B CN 201711067995 A CN201711067995 A CN 201711067995A CN 109755976 B CN109755976 B CN 109755976B
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Abstract
The disclosure relates to a wireless charging method, a wireless charging device and a storage medium, and relates to the technical field of electronic equipment. The method is applied to intelligent wireless charging equipment, the intelligent wireless charging equipment is provided with a transmitting coil and a sliding piece, the sliding piece can move along the direction perpendicular to the sliding piece, and the transmitting coil is sleeved on the sliding piece, and the method comprises the following steps: the method comprises the steps of receiving a first voltage sent by a terminal to be charged, obtaining an offset distance corresponding to the first voltage from a corresponding relation between the voltage and the offset distance, controlling a transmitting coil and a sliding piece to move based on the obtained offset distance so as to determine a coil alignment position, controlling the transmitting coil to move to the coil alignment position, and charging the terminal through the moved transmitting coil, wherein the coil alignment position refers to a position which enables the transmitting coil to be aligned with a receiving coil of the terminal to the maximum extent. Therefore, the transmitting coil and the receiving coil are controlled to be aligned and overlapped and then charged, and therefore the charging efficiency is guaranteed to be maximized.
Description
Technical Field
The present disclosure relates to the field of electronic devices, and in particular, to a wireless charging method and apparatus, and a storage medium.
Background
With the rapid development of electronic equipment technology, intelligent wireless charging equipment is widely applied. The intelligent wireless charging equipment can realize wireless power transmission in modes of electromagnetic induction, electromagnetic resonance, electromagnetic radiation and the like, namely, a data line is not needed. The electromagnetic induction type is a wireless charging technology realized based on a Faraday electromagnetic induction theory, and is the most mature wireless charging method applied at present.
In an actual application scenario, a transmitting coil is generally configured in the intelligent wireless charging device, a receiving coil is configured in the terminal, and in addition, a guide identifier is generally arranged on a wireless charging base of the intelligent wireless charging device. When a user wants to charge the terminal by using the intelligent wireless charging equipment, the terminal can be placed at the guide identifier, so that the transmitting coil of the intelligent wireless charging equipment is aligned with the receiving coil of the terminal as much as possible, and electric energy transmission is realized by utilizing the transmitting coil and the receiving coil through an electromagnetic induction principle.
Disclosure of Invention
To overcome the problems in the related art, the present disclosure provides a wireless charging method, apparatus, and storage medium.
In a first aspect, a wireless charging method is provided, which is applied to an intelligent wireless charging device, the intelligent wireless charging device is provided with a transmitting coil and a slider, the slider is movable along a direction perpendicular to the slider, the transmitting coil is sleeved on the slider, and the method includes:
receiving a first voltage sent by a terminal to be charged;
acquiring an offset distance corresponding to the first voltage from a corresponding relation between the voltage and the offset distance;
controlling the transmission coil and the slider to move based on the acquired offset distance to determine a coil alignment position, which is a position enabling maximum alignment of the transmission coil with a reception coil of the terminal;
and controlling the transmitting coil to move to the coil alignment position, and charging the terminal through the moved transmitting coil.
Optionally, said controlling the transmission coil and the slider to move based on the acquired offset distance to determine a coil alignment position comprises:
controlling the transmitting coil and the sliding piece to move so that the transmitting coil moves the offset distance in the up, down, left and right directions of the current position respectively, and acquiring the voltage sent by the terminal after the transmitting coil moves in each of the up, down, left and right directions respectively;
and determining the alignment position of the coil based on four voltages sent by the terminal after the transmitting coil moves in each direction.
Optionally, the determining the coil alignment position based on four voltages sent by the terminal after the transmitting coil moves in each direction includes:
when one maximum voltage exists in the four voltages sent by the terminal, determining the position corresponding to the maximum voltage as the coil alignment position;
when two maximum voltages exist in the four voltages sent by the terminal, controlling the transmitting coil and the sliding piece to move so that the transmitting coil moves to the middle direction between the two maximum voltage corresponding directions from the position before moving by the offset distance, and acquiring a second voltage sent by the terminal at the position after moving; determining a position corresponding to a maximum voltage of the two maximum voltages and the second voltage as the coil alignment position.
Optionally, before controlling the transmitting coil and the slider to move based on the acquired offset distance, the method further includes:
determining a voltage difference between the first voltage and a set voltage, the set voltage being a receive voltage of the terminal when the transmit coil and a receive coil of the terminal are fully aligned;
when the voltage difference value is greater than a preset voltage difference value, performing the step of controlling the transmission coil and the slider to move based on the acquired offset distance.
Optionally, the charging the terminal by the moved transmitting coil includes:
sending a charging notification message to the terminal through the moved transmitting coil;
receiving a charging instruction sent by the terminal based on the charging notification message through the moved transmitting coil, wherein the charging instruction carries required voltage and required current;
and charging the terminal through the moved transmitting coil according to the required voltage and the required current.
In a second aspect, there is provided a wireless charging apparatus configured in an intelligent wireless charging device, the intelligent wireless charging device being provided with a transmission coil and a slider, the slider being movable in a direction perpendicular to the slider, the transmission coil being looped over the slider, the apparatus comprising:
the receiving module is used for receiving a first voltage sent by a terminal to be charged;
the acquisition module is used for acquiring the offset distance corresponding to the first voltage from the corresponding relation between the voltage and the offset distance;
a control module for controlling the transmission coil and the slider to move based on the acquired offset distance to determine a coil alignment position, which is a position that enables the transmission coil to be aligned with a receiving coil of the terminal to the maximum extent;
and the charging module is used for controlling the transmitting coil to move to the coil alignment position and charging the terminal through the moved transmitting coil.
Optionally, the control module comprises:
the control submodule is used for controlling the transmitting coil and the sliding piece to move so that the transmitting coil moves the offset distance in the upper direction, the lower direction, the left direction and the right direction of the current position respectively, and acquiring the voltage sent by the terminal after the transmitting coil moves in each of the upper direction, the lower direction, the left direction and the right direction;
and the determining submodule is used for determining the coil alignment position based on four voltages sent by the terminal after the transmitting coil moves in each direction.
Optionally, the determining sub-module is configured to:
when one maximum voltage exists in the four voltages sent by the terminal, determining the position corresponding to the maximum voltage as the coil alignment position;
when two maximum voltages exist in the four voltages sent by the terminal, controlling the transmitting coil and the sliding piece to move so that the transmitting coil moves to the middle direction between the two maximum voltage corresponding directions from the position before moving by the offset distance, and acquiring a second voltage sent by the terminal at the position after moving; determining a position corresponding to a maximum voltage of the two maximum voltages and the second voltage as the coil alignment position.
Optionally, the apparatus further comprises:
a determining module, configured to determine a voltage difference between the first voltage and a set voltage, where the set voltage is a received voltage of the terminal when the transmitting coil and a receiving coil of the terminal are completely aligned;
and the triggering module is used for triggering the control module to control the transmitting coil and the sliding piece to move based on the acquired offset distance when the voltage difference value is larger than a preset voltage difference value.
Optionally, the charging module includes:
the sending submodule is used for sending a charging notification message to the terminal through the moved sending coil;
the receiving submodule is used for receiving a charging instruction sent by the terminal based on the charging notification message through the moved transmitting coil, and the charging instruction carries required voltage and required current;
and the charging submodule is used for charging the terminal through the moved transmitting coil according to the required voltage and the required current.
In a third aspect, a computer-readable storage medium is provided, which stores instructions that, when executed by a processor, implement the wireless charging method of the first aspect.
In a fourth aspect, there is provided a computer program product containing instructions which, when run on a computer, cause the computer to perform the wireless charging method of the first aspect described above.
The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects:
the wireless charging method provided by the embodiment of the disclosure is applied to intelligent wireless charging equipment, the intelligent wireless charging equipment is provided with a transmitting coil and a sliding piece, the sliding piece can slide along the direction perpendicular to the sliding piece, and the transmitting coil is sleeved on the sliding piece, so that the transmitting coil can be ensured to reach any position in a plane by controlling the sliding piece and the transmitting coil to move. In a specific implementation process, a first voltage sent by a terminal to be charged is received, and in order to facilitate accurate subsequent adjustment of the position of the transmitting coil, an offset distance corresponding to the first voltage is obtained from a corresponding relationship between the voltage and the offset distance. Thereafter, the transmission coil and the slider are controlled to move based on the acquired offset distance to determine a position where the transmission coil can be maximally aligned with the reception coil of the terminal. The transmitting coil is controlled to move to the determined position, the terminal is charged through the transmitting coil after moving, and therefore the transmitting coil and the receiving coil are controlled to be aligned and overlapped and then charged, and therefore the charging efficiency is guaranteed to be maximized.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
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 disclosure.
Fig. 1A is a schematic diagram illustrating an intelligent wireless charging device, according to an example embodiment.
Fig. 1B is a flow chart illustrating a wireless charging method according to an example embodiment.
Fig. 2A is a flow chart illustrating a wireless charging method according to another example embodiment.
Fig. 2B is a schematic diagram illustrating an intelligent wireless charging device, according to an example embodiment.
Fig. 3A is a block diagram illustrating a wireless charging device according to an example embodiment.
Fig. 3B is a block diagram illustrating a wireless charging device, according to an example embodiment.
Fig. 4 is a block diagram illustrating a wireless charging apparatus 400 according to an example embodiment.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.
Before describing the wireless charging method provided by the embodiment of the present disclosure in detail, application scenarios and implementation environments related to the embodiment of the present disclosure are briefly described.
First, a brief description is given of an application scenario related to an embodiment of the present disclosure.
The charging efficiency of the intelligent wireless charging equipment has a close relationship with the contact ratio of the transmitting coil and the receiving coil. In the practical application scene, when the terminal needs to be charged by using the intelligent wireless charging equipment, the user places the terminal at the guide identifier on the wireless charging base. However, if the user places the terminal at an inaccurate position, it is easy to cause the transmitting coil to be misaligned with the receiving coil of the terminal, and thus, the charging efficiency is reduced. Therefore, the embodiment of the present disclosure provides a wireless charging method, which determines a coil alignment position and controls a transmitting coil to move to the coil alignment position, so that the transmitting coil is aligned with a receiving coil of a terminal to the maximum extent, and magnetic loss is reduced, thereby ensuring that charging efficiency is maximized, and a specific implementation process of the wireless charging method is as shown in the following embodiments shown in fig. 1B and fig. 2A.
Next, a brief description will be given of an implementation environment related to the embodiments of the present disclosure.
The wireless charging method provided by the embodiment of the present disclosure is applied to an intelligent wireless charging device, please refer to fig. 1A, and the intelligent wireless charging device is provided with a transmitting coil 1 and a sliding member 2. The sliding member 2 can move in a direction perpendicular to the sliding member 2, that is, the sliding member 2 can move left and right on the plane of the top of the wireless charging housing. In addition, the transmitting coil 1 is sleeved on the slider 2, that is, the transmitting coil 1 can move on the slider 2 along the axial direction. Therefore, the transmitting coil can be ensured to reach any position in the plane of the top of the wireless charging shell.
It should be noted that, in a practical application scenario, the sliding member may be a sliding rod, a linear motor, a sliding belt, and the like, which is not limited in this disclosure.
Fig. 1B is a flowchart illustrating a wireless charging method according to an exemplary embodiment, as shown in fig. 1B, the wireless charging method is used in an intelligent wireless charging device, and the method may include the following implementation steps:
in step 101, a first voltage transmitted by a terminal to be charged is received.
In step 102, an offset distance corresponding to the first voltage is obtained from a correspondence between the voltage and the offset distance.
In step 103, the transmission coil and the slider are controlled to move based on the acquired offset distance to determine a coil alignment position, which is a position that enables maximum alignment of the transmission coil with the reception coil of the terminal.
In step 104, the transmitting coil is controlled to move to the coil alignment position, and the terminal is charged through the moved transmitting coil.
In the embodiment of the disclosure, the provided wireless charging method is applied to an intelligent wireless charging device, the intelligent wireless charging device is provided with a transmitting coil and a sliding part, the sliding part can slide along a direction perpendicular to the sliding part, and the transmitting coil is sleeved on the sliding part, so that the transmitting coil can be ensured to reach any position in a plane by controlling the sliding part and the transmitting coil to move. In a specific implementation process, a first voltage sent by a terminal to be charged is received, and in order to facilitate accurate subsequent adjustment of the position of the transmitting coil, an offset distance corresponding to the first voltage is obtained from a corresponding relationship between the voltage and the offset distance. Thereafter, the transmission coil and the slider are controlled to move based on the acquired offset distance to determine a position where the transmission coil can be maximally aligned with the reception coil of the terminal. The transmitting coil is controlled to move to the determined position, the terminal is charged through the transmitting coil after moving, and therefore the transmitting coil and the receiving coil are controlled to be aligned and overlapped and then charged, and therefore the charging efficiency is guaranteed to be maximized.
Optionally, controlling the transmitting coil and the slider to move based on the acquired offset distance to determine a coil alignment position, comprising:
controlling the transmitting coil and the sliding piece to move so that the transmitting coil moves the offset distance in the up, down, left and right directions of the current position respectively, and acquiring the voltage sent by the terminal after the transmitting coil moves in each of the up, down, left and right directions respectively;
the coil alignment position is determined based on four voltages transmitted by the terminal after the transmitting coil is moved in each direction.
Optionally, determining the coil alignment position based on four voltages sent by the terminal after the transmitting coil moves in each direction includes:
when one maximum voltage exists in the four voltages sent by the terminal, determining the position corresponding to the maximum voltage as the coil alignment position;
when two maximum voltages exist in the four voltages sent by the terminal, controlling the transmitting coil and the sliding piece to move so that the transmitting coil moves the offset distance from the position before moving to the middle direction between the two maximum voltage corresponding directions, and acquiring a second voltage sent by the terminal at the position after moving; and determining the position corresponding to the maximum voltage of the two maximum voltages and the second voltage as the coil alignment position.
Optionally, before controlling the transmitting coil and the slider to move based on the acquired offset distance, the method further includes:
determining a voltage difference between the first voltage and a set voltage, wherein the set voltage is a receiving voltage of the terminal when the transmitting coil and a receiving coil of the terminal are completely aligned;
and when the voltage difference value is larger than a preset voltage difference value, executing the step of controlling the transmitting coil and the sliding piece to move based on the acquired offset distance.
Optionally, the charging the terminal by the moved transmitting coil includes:
sending a charging notification message to the terminal through the moved transmitting coil;
receiving a charging instruction sent by the terminal based on the charging notification message through the moved transmitting coil, wherein the charging instruction carries required voltage and required current;
and charging the terminal through the moved transmitting coil according to the required voltage and the required current.
All the above optional technical solutions can be combined arbitrarily to form optional embodiments of the present disclosure, and the embodiments of the present disclosure are not described in detail again.
Fig. 2A is a flowchart illustrating a wireless charging method according to an exemplary embodiment, where, as shown in fig. 2A, the wireless charging method is used in an intelligent wireless charging device, the method may include the following implementation steps:
in step 201, a first voltage transmitted by a terminal to be charged is received.
In a practical application scenario, after a user places a terminal to be charged on a wireless charging base of the intelligent wireless charging device, the intelligent wireless charging device transmits electric energy at a fixed power W1, and accordingly, the terminal can sense a first voltage through a receiving coil.
In order to facilitate the intelligent wireless charging device to determine whether a receiving coil of a currently placed terminal is deviated from a transmitting coil of the intelligent wireless charging device, the terminal sends the sensed first voltage to the intelligent wireless charging device through the receiving coil, and accordingly, the intelligent wireless charging device receives the first voltage sent by the terminal through the transmitting coil.
In step 202, an offset distance corresponding to the first voltage is obtained from a correspondence between the voltage and the offset distance.
It is understood that, in the case where the central point of the transmitting coil is aligned with the central point of the receiving coil, the voltage that the terminal can sense is the largest, and at this time, the charging efficiency may be considered to be the largest, and in the embodiment of the present disclosure, the largest voltage is referred to as a set voltage. However, assuming that the center point of the transmitting coil is offset from the center point of the receiving coil by an offset distance D, the larger the offset distance D, the smaller the value of the voltage that can be sensed by the terminal. It can be seen that there is a certain correspondence between the offset distance D and the voltage that the terminal can induce.
In an actual application scenario, a corresponding relationship between the voltage and the offset distance is stored in the intelligent wireless charging device in advance. Further, the corresponding relationship may be stored in the intelligent wireless charging device by a user in advance, that is, the user may determine the corresponding relationship between the voltage and the offset distance through a large number of tests in advance, and then store the corresponding relationship obtained through the test into the intelligent wireless charging device.
Therefore, after the intelligent wireless charging equipment receives the first voltage sent by the terminal, the offset distance corresponding to the first voltage can be obtained from the corresponding relation stored in advance.
In step 203, a voltage difference between the first voltage and a set voltage is determined, where the set voltage is a received voltage of the terminal when the transmitting coil and the receiving coil of the terminal are completely aligned.
Since the set voltage is the receiving voltage of the terminal when the transmitting coil and the receiving coil of the terminal are completely aligned, in order to determine whether the transmitting coil and the receiving coil are deviated from each other, a first voltage transmitted by the terminal may be compared with the set voltage, that is, a voltage difference between the first voltage and the set voltage is determined, so as to determine whether the transmitting coil and the receiving coil are deviated from each other according to the voltage difference.
In step 204, when the voltage difference is greater than a preset voltage difference, the transmitting coil and the slider are controlled to move based on the obtained offset distance to determine a coil alignment position, which is a position that enables the transmitting coil to be aligned with the receiving coil of the terminal to the maximum extent.
The preset voltage difference value can be set by a user according to actual needs in a user-defined mode, and can also be set by the intelligent wireless charging equipment in a default mode.
When the voltage difference is greater than the preset voltage difference, it indicates that the center point of the receiving coil is far away from the center point of the transmitting coil, and at this time, the transmitting coil and the slider need to be controlled to move based on the obtained offset distance to determine a position where the transmitting coil and the receiving coil can be aligned to the maximum extent, so as to adjust the position of the transmitting coil subsequently.
Of course, if the voltage difference is smaller than or equal to the preset voltage difference, it may be considered that the center point of the receiving coil is aligned and overlapped with the center point of the transmitting coil, and at this time, the position of the transmitting coil may not need to be adjusted, that is, under such a condition, the determination of the coil alignment position and the subsequent operations of adjusting the position of the transmitting coil and the like are finished, and the terminal is directly charged through the transmitting coil.
In addition, the above-mentioned specific implementation of controlling the movement of the transmitting coil and the slider based on the obtained offset distance to determine the coil alignment position may include the following implementation steps 2041 to 2042:
2041: and controlling the transmitting coil and the sliding piece to move so that the transmitting coil moves the offset distance respectively in the upper direction, the lower direction, the left direction and the right direction of the current position, and respectively acquiring the voltage sent by the terminal after the transmitting coil moves in each of the upper direction, the lower direction, the left direction and the right direction.
In order to determine which direction between the receiving coil and the transmitting coil deviates from the offset distance, the original position of the transmitting coil may be used as a reference, the transmitting coil is controlled to move the offset distance in the up, down, left, and right directions, respectively, and the voltage sent by the terminal after the transmitting coil moves in each of the up, down, left, and right directions is obtained, respectively.
For example, referring to fig. 2B, while keeping the slide rail stationary, the transmitting coil is controlled to move upward and downward along the axial direction by the offset distance to reach the position a and the position C, respectively, and the voltages transmitted by the terminal of the transmitting coil at the position a and the position C, which are referred to as a third voltage and a fourth voltage, respectively, are obtained. Then, while keeping the transmitting coil immovable at the position O before movement, the sliding member is controlled to move the offset distance to the right and left, respectively, in the direction perpendicular to the sliding member, to reach the position B and the position D, respectively, and the voltages transmitted by the terminal when the transmitting coil is at the position B and the position D, which are referred to as a fifth voltage and a sixth voltage, respectively, are acquired.
Here, it should be noted that the positions B and D are collinear with the position O.
2042: the coil alignment position is determined based on four voltages transmitted by the terminal after the transmitting coil is moved in each direction.
In an actual implementation, since there may be one maximum voltage or two maximum voltages among the four voltages transmitted by the terminal, the implementation of determining the alignment position of the coil based on the four voltages transmitted by the terminal after the transmitting coil moves in each direction is different according to the number of the maximum voltages, and specifically includes the following two cases:
in the first case: when a maximum voltage exists in the four voltages transmitted by the terminal, the position corresponding to the maximum voltage is determined as the coil alignment position.
If there is a maximum voltage among the four voltages transmitted by the terminal, it means that the receiving coil is offset from the transmitting coil by the offset distance only in one direction, and therefore, the position corresponding to the maximum voltage can be determined as the coil alignment position.
For example, referring to fig. 2B, if there is a maximum voltage among the four voltages transmitted by the terminal, and the maximum voltage is a third voltage, the position of the point a may be determined as the coil alignment position.
In the second case: when two maximum voltages exist in the four voltages sent by the terminal, controlling the transmitting coil and the sliding piece to move so that the transmitting coil moves the offset distance from the position before moving to the middle direction between the two maximum voltage corresponding directions, and acquiring a second voltage sent by the terminal at the position after moving; and determining the position corresponding to the maximum voltage of the two maximum voltages and the second voltage as the coil alignment position.
When there are two maximum voltages among the four voltages transmitted by the terminal, it is described that the receiving coil is offset from the transmitting coil by the same offset distance in both directions, and in general, the two directions corresponding to the two maximum voltages are adjacent directions. In this case, a position in the middle of the two directions, which is a direction at an angle of 45 degrees to both directions, may also be a coil alignment position. Therefore, in order to determine the optimal coil alignment position, the intelligent wireless charging device may further control the transmission coil and the slider to move such that the transmission coil moves the offset distance from the position before the movement to the middle direction between the two maximum voltage corresponding directions, and acquire the second voltage transmitted from the terminal at the position after the movement.
For example, with continued reference to fig. 2B, if the two maximum voltages are the third voltage and the fifth voltage, the intelligent wireless charging device may further control the transmitting coil and the slider to move, so that the transmitting coil moves to the position E. Thereafter, a second voltage transmitted by the terminal with the transmitting coil at position E is obtained.
And then, determining the position corresponding to the maximum voltage of the two maximum voltages and the second voltage as the coil alignment position. For example, if the maximum voltage of the two maximum voltages and the second voltage is the second voltage, the position E is determined as the coil alignment position.
Of course, if the two maximum voltages are both the maximum voltage of the two maximum voltages and the second voltage, the position corresponding to any one of the two maximum voltages may be determined as the coil alignment position. For example, if the maximum voltage among the third voltage, the fifth voltage, and the second voltage is the third voltage and the fifth voltage, the position a or the position B may be determined as the coil alignment position.
In step 205, the transmitting coil is controlled to move to the coil alignment position, and the terminal is charged by the moved transmitting coil.
After the coil alignment position is determined, the transmitting coil can be controlled to move to the coil alignment position, so that the follow-up charging efficiency of the terminal is ensured to be maximum. Wherein, the specific implementation of controlling the transmitting coil to move to the coil alignment position is different according to the different determined coil alignment positions. For example, referring to fig. 2B, if the coil alignment position is determined to be position a or position C through the above steps, the slider can be kept still, and the transmitting coil is controlled to move to position a or position C. For another example, if it is determined through the above steps that the coil alignment position is the position B or the position D, the transmitting coil is kept stationary at the home position O, and the slider is controlled to move to the right or left by the above offset distance to control the transmitting coil to move to the position B or the position D.
Further, the specific implementation of charging the terminal through the moved transmitting coil may include: the mobile transmitting coil is used for sending a charging notification message to the terminal, the mobile transmitting coil is used for receiving a charging instruction sent by the terminal based on the charging notification message, the charging instruction carries required voltage and required current, and the mobile transmitting coil is used for charging the terminal according to the required voltage and the required current.
In practical implementation, the terminal and the intelligent wireless charging device need to be negotiated to implement charging. The intelligent wireless charging equipment sends a charging notification message to the terminal through the moved transmitting coil so as to notify the terminal that the position of the transmitting coil is adjusted and the charging preparation is ready. After receiving the charging notification message, the terminal can send a charging instruction carrying the required voltage and the required current to the intelligent wireless charging device through the receiving coil, and the charging instruction is used for indicating that the intelligent wireless charging device can start charging. The required voltage refers to the voltage actually required by the terminal, and the required current refers to the current actually required by the terminal. Then, the intelligent wireless charging equipment charges the terminal through the movable transmitting coil according to the required voltage and the required current, and correspondingly, the terminal receives electric energy through the receiving coil of the terminal. Thus, the wireless charging of the terminal is realized.
Further, in the charging process, when the intelligent wireless charging device receives a charging stopping instruction through the transmitting coil, the charging operation is finished. In specific implementation, when the terminal detects that the charging current entering the battery is smaller than the preset current, a charging stopping instruction is sent to the intelligent wireless charging equipment. Further, the terminal may send the stop charging instruction to the intelligent wireless charging device through a receiving coil.
The preset current may be set by a user according to actual requirements in a user-defined manner, or may be set by the default of the terminal, which is not limited in the embodiment of the present disclosure. For example, the preset current is 50 mA.
That is, when the terminal detects that the charging current entering the battery is smaller than the preset current, it indicates that the battery is fully charged, and at this time, the terminal may notify the intelligent wireless charging device to stop charging by sending a charging stop instruction to the intelligent wireless charging device.
In the embodiment of the disclosure, the provided wireless charging method is applied to an intelligent wireless charging device, the intelligent wireless charging device is provided with a transmitting coil and a sliding part, the sliding part can slide along a direction perpendicular to the sliding part, and the transmitting coil is sleeved on the sliding part, so that the transmitting coil can be ensured to reach any position in a plane by controlling the sliding part and the transmitting coil to move. In a specific implementation process, a first voltage sent by a terminal to be charged is received, and in order to facilitate accurate subsequent adjustment of the position of the transmitting coil, an offset distance corresponding to the first voltage is obtained from a corresponding relationship between the voltage and the offset distance. Thereafter, the transmission coil and the slider are controlled to move based on the acquired offset distance to determine a position where the transmission coil can be maximally aligned with the reception coil of the terminal. The transmitting coil is controlled to move to the determined position, the terminal is charged through the transmitting coil after moving, and therefore the transmitting coil and the receiving coil are controlled to be aligned and overlapped and then charged, and therefore the charging efficiency is guaranteed to be maximized.
Fig. 3A is a block diagram illustrating a wireless charging device according to an example embodiment. Referring to fig. 3A, the apparatus includes a receiving module 310, an obtaining module 320, a control module 330, and a charging module 340.
The receiving module 310 is configured to receive a first voltage sent by a terminal to be charged;
the obtaining module 320 is configured to obtain an offset distance corresponding to the first voltage from a corresponding relationship between the voltage and the offset distance;
the control module 330 is configured to control the transmitting coil and the slider to move based on the obtained offset distance to determine a coil alignment position, where the transmitting coil and the receiving coil of the terminal are aligned to the maximum extent;
the charging module 340 is configured to control the transmitting coil to move to the coil alignment position, and charge the terminal through the moved transmitting coil.
Optionally, the control module 330 includes:
the control submodule is used for controlling the transmitting coil and the sliding piece to move so that the transmitting coil moves the offset distance in the upper direction, the lower direction, the left direction and the right direction of the current position respectively, and acquiring the voltage sent by the terminal after the transmitting coil moves in each of the upper direction, the lower direction, the left direction and the right direction;
and the determining submodule is used for determining the coil alignment position based on four voltages sent by the terminal after the transmitting coil moves in each direction.
Optionally, the determining sub-module is configured to:
when one maximum voltage exists in the four voltages sent by the terminal, determining the position corresponding to the maximum voltage as the coil alignment position;
when two maximum voltages exist in the four voltages sent by the terminal, controlling the transmitting coil and the sliding piece to move so that the transmitting coil moves to the middle direction between the two maximum voltage corresponding directions from the position before moving by the offset distance, and acquiring a second voltage sent by the terminal at the position after moving; determining a position corresponding to a maximum voltage of the two maximum voltages and the second voltage as the coil alignment position.
Optionally, the apparatus further comprises:
a determining module 350, configured to determine a voltage difference between the first voltage and a set voltage, where the set voltage is a receiving voltage of the terminal when the transmitting coil and a receiving coil of the terminal are completely aligned;
a triggering module 360, configured to trigger the control module 330 to control the transmitting coil and the slider to move based on the obtained offset distance when the voltage difference is greater than a preset voltage difference.
Optionally, the charging module includes:
the sending submodule is used for sending a charging notification message to the terminal through the moved sending coil;
the receiving submodule is used for receiving a charging instruction sent by the terminal based on the charging notification message through the moved transmitting coil, and the charging instruction carries required voltage and required current;
and the charging submodule is used for charging the terminal through the moved transmitting coil according to the required voltage and the required current.
In the embodiment of the disclosure, the provided wireless charging method is applied to an intelligent wireless charging device, the intelligent wireless charging device is provided with a transmitting coil and a sliding part, the sliding part can slide along a direction perpendicular to the sliding part, and the transmitting coil is sleeved on the sliding part, so that the transmitting coil can be ensured to reach any position in a plane by controlling the sliding part and the transmitting coil to move. In a specific implementation process, a first voltage sent by a terminal to be charged is received, and in order to facilitate accurate subsequent adjustment of the position of the transmitting coil, an offset distance corresponding to the first voltage is obtained from a corresponding relationship between the voltage and the offset distance. Thereafter, the transmission coil and the slider are controlled to move based on the acquired offset distance to determine a position where the transmission coil can be maximally aligned with the reception coil of the terminal. The transmitting coil is controlled to move to the determined position, the terminal is charged through the transmitting coil after moving, and therefore the transmitting coil and the receiving coil are controlled to be aligned and overlapped and then charged, and therefore the charging efficiency is guaranteed to be maximized.
With regard to the apparatus in the above-described embodiment, the specific manner in which each module performs the operation has been described in detail in the embodiment related to the method, and will not be elaborated here.
Fig. 4 is a block diagram illustrating a wireless charging apparatus 400 according to an example embodiment. Referring to fig. 4, the apparatus 400 includes a processor 422, which further includes one or more processors, and memory resources, represented by memory 432, for storing instructions, such as applications, that are executable by the processor 422. The application programs stored in memory 432 may include one or more modules that each correspond to a set of instructions. Further, the processor 422 is configured to execute instructions to perform the wireless charging method provided by the embodiment shown in fig. 1B or fig. 2A.
The apparatus 400 may also include a power component 426 configured to perform power management of the apparatus 400, a wired or wireless network interface 450 configured to connect the apparatus 400 to a network, and an input output (I/O) interface 458.
In an exemplary embodiment, a non-transitory computer readable storage medium comprising instructions, such as the memory 432 comprising instructions, executable by the processor 422 of the apparatus 400 to perform the above-described method is also provided.
A computer-readable storage medium having instructions stored thereon, the instructions when executed by a processor implement the wireless charging method provided in the embodiment shown in fig. 1B or fig. 2A.
A computer program product containing instructions which, when run on a computer, cause the computer to perform the wireless charging method provided in the embodiment shown in fig. 1B or fig. 2A above.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It will be understood that the present disclosure is not limited to the precise arrangements 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 (9)
1. A wireless charging method is applied to intelligent wireless charging equipment, and is characterized in that the intelligent wireless charging equipment is provided with a transmitting coil and a sliding piece, the sliding piece can move along the direction perpendicular to the sliding piece, the transmitting coil is sleeved on the sliding piece, and the method comprises the following steps:
receiving a first voltage sent by a terminal to be charged;
acquiring an offset distance corresponding to the first voltage from a corresponding relation between the voltage and the offset distance;
controlling the transmitting coil and the sliding piece to move so that the transmitting coil moves the offset distance in the up, down, left and right directions of the current position respectively, and acquiring the voltage sent by the terminal after the transmitting coil moves in each of the up, down, left and right directions respectively;
determining the coil alignment position based on four voltages sent by the terminal after the transmitting coil moves in each direction, wherein the coil alignment position is a position which can enable the transmitting coil to be aligned with a receiving coil of the terminal to the maximum extent;
and controlling the transmitting coil to move to the coil alignment position, and charging the terminal through the moved transmitting coil.
2. The method of claim 1, wherein said determining the coil alignment position based on four voltages transmitted by the terminal after the transmit coil is moved in each direction comprises:
when one maximum voltage exists in the four voltages sent by the terminal, determining the position corresponding to the maximum voltage as the coil alignment position;
when two maximum voltages exist in the four voltages sent by the terminal, controlling the transmitting coil and the sliding piece to move so that the transmitting coil moves to the middle direction between the two maximum voltage corresponding directions from the position before moving by the offset distance, and acquiring a second voltage sent by the terminal at the position after moving; determining a position corresponding to a maximum voltage of the two maximum voltages and the second voltage as the coil alignment position.
3. The method of any of claims 1-2, wherein prior to controlling the transmit coil and the slider to move based on the obtained offset distance, further comprising:
determining a voltage difference between the first voltage and a set voltage, the set voltage being a receive voltage of the terminal when the transmit coil and a receive coil of the terminal are fully aligned;
when the voltage difference value is greater than a preset voltage difference value, performing the step of controlling the transmission coil and the slider to move based on the acquired offset distance.
4. The method of claim 1, wherein the charging the terminal by the moved transmit coil comprises:
sending a charging notification message to the terminal through the moved transmitting coil;
receiving a charging instruction sent by the terminal based on the charging notification message through the moved transmitting coil, wherein the charging instruction carries required voltage and required current;
and charging the terminal through the moved transmitting coil according to the required voltage and the required current.
5. A wireless charging apparatus configured in an intelligent wireless charging device, wherein the intelligent wireless charging device is provided with a transmission coil and a slider, the slider is movable in a direction perpendicular to the slider, the transmission coil is looped over the slider, the apparatus comprising:
the receiving module is used for receiving a first voltage sent by a terminal to be charged;
the acquisition module is used for acquiring the offset distance corresponding to the first voltage from the corresponding relation between the voltage and the offset distance;
a control module, comprising: the control submodule is used for controlling the transmitting coil and the sliding piece to move so that the transmitting coil moves the offset distance in the upper direction, the lower direction, the left direction and the right direction of the current position respectively, and acquiring the voltage sent by the terminal after the transmitting coil moves in each of the upper direction, the lower direction, the left direction and the right direction; the determining submodule is used for determining the coil alignment position based on four voltages sent by the terminal after the transmitting coil moves in each direction, and the coil alignment position refers to a position which can enable the transmitting coil to be aligned with the receiving coil of the terminal to the maximum extent;
and the charging module is used for controlling the transmitting coil to move to the coil alignment position and charging the terminal through the moved transmitting coil.
6. The apparatus of claim 5, wherein the determination submodule is to:
when one maximum voltage exists in the four voltages sent by the terminal, determining the position corresponding to the maximum voltage as the coil alignment position;
when two maximum voltages exist in the four voltages sent by the terminal, controlling the transmitting coil and the sliding piece to move so that the transmitting coil moves to the middle direction between the two maximum voltage corresponding directions from the position before moving by the offset distance, and acquiring a second voltage sent by the terminal at the position after moving; determining a position corresponding to a maximum voltage of the two maximum voltages and the second voltage as the coil alignment position.
7. The apparatus of any of claims 5-6, further comprising:
a determining module, configured to determine a voltage difference between the first voltage and a set voltage, where the set voltage is a received voltage of the terminal when the transmitting coil and a receiving coil of the terminal are completely aligned;
and the triggering module is used for triggering the control module to control the transmitting coil and the sliding piece to move based on the acquired offset distance when the voltage difference value is larger than a preset voltage difference value.
8. The apparatus of claim 5, wherein the charging module comprises:
the sending submodule is used for sending a charging notification message to the terminal through the moved sending coil;
the receiving submodule is used for receiving a charging instruction sent by the terminal based on the charging notification message through the moved transmitting coil, and the charging instruction carries required voltage and required current;
and the charging submodule is used for charging the terminal through the moved transmitting coil according to the required voltage and the required current.
9. A computer-readable storage medium having stored thereon instructions which, when executed by a processor, carry out the steps of any of the methods of claims 1-4.
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| CN112751375B (en) * | 2019-10-31 | 2024-06-18 | 北京小米移动软件有限公司 | Wireless charging method, wireless charging device and storage medium |
| CN111060776A (en) * | 2020-01-17 | 2020-04-24 | 中汽研汽车检验中心（天津）有限公司 | A wireless charging test system alignment device and method |
| CN113472021A (en) * | 2020-03-30 | 2021-10-01 | 苏州宝时得电动工具有限公司 | Wireless charging control method for self-moving equipment, self-moving equipment and wireless charging station |
| CN114915048B (en) * | 2021-02-09 | 2024-01-30 | 北京小米移动软件有限公司 | Charging device, charging method of foot type robot and foot type robot |
| CN113091585B (en) * | 2021-03-25 | 2023-07-21 | 珠海市瀚向科技有限公司 | Coil alignment offset detection circuit and electronic equipment |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101425702A (en) * | 2007-09-26 | 2009-05-06 | 精工爱普生株式会社 | Structure having a power transmitting device |
| US8362744B2 (en) * | 2009-06-16 | 2013-01-29 | Sanyo Electric Co., Ltd. | Battery charging pad employing magnetic induction |
| CN103107576A (en) * | 2013-01-31 | 2013-05-15 | 浙江吉利汽车研究院有限公司杭州分公司 | Electric automobile wireless charging system |
| CN104201792A (en) * | 2014-09-12 | 2014-12-10 | 中国科学院电工研究所 | Design method of wireless power transmission device |
| CN104977944A (en) * | 2015-07-22 | 2015-10-14 | 厦门新页科技有限公司 | Electrical vehicle wireless charging transmitting and receiving automatic alignment system |
| CN105027386A (en) * | 2013-03-05 | 2015-11-04 | 松下知识产权经营株式会社 | Wireless power supply system |
| CN106100149A (en) * | 2016-08-17 | 2016-11-09 | 青岛鲁渝能源科技有限公司 | Wireless charging system and wireless charging method |
| CN107181329A (en) * | 2016-03-11 | 2017-09-19 | 现代自动车株式会社 | Alignment methods for wireless power transmission coil |
-
2017
- 2017-11-03 CN CN201711067995.3A patent/CN109755976B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101425702A (en) * | 2007-09-26 | 2009-05-06 | 精工爱普生株式会社 | Structure having a power transmitting device |
| US8362744B2 (en) * | 2009-06-16 | 2013-01-29 | Sanyo Electric Co., Ltd. | Battery charging pad employing magnetic induction |
| CN103107576A (en) * | 2013-01-31 | 2013-05-15 | 浙江吉利汽车研究院有限公司杭州分公司 | Electric automobile wireless charging system |
| CN105027386A (en) * | 2013-03-05 | 2015-11-04 | 松下知识产权经营株式会社 | Wireless power supply system |
| CN104201792A (en) * | 2014-09-12 | 2014-12-10 | 中国科学院电工研究所 | Design method of wireless power transmission device |
| CN104977944A (en) * | 2015-07-22 | 2015-10-14 | 厦门新页科技有限公司 | Electrical vehicle wireless charging transmitting and receiving automatic alignment system |
| CN107181329A (en) * | 2016-03-11 | 2017-09-19 | 现代自动车株式会社 | Alignment methods for wireless power transmission coil |
| CN106100149A (en) * | 2016-08-17 | 2016-11-09 | 青岛鲁渝能源科技有限公司 | Wireless charging system and wireless charging method |
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|---|---|
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