CN112152332A - Information display method, device and storage medium - Google Patents
Information display method, device and storage medium Download PDFInfo
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- CN112152332A CN112152332A CN201910576175.XA CN201910576175A CN112152332A CN 112152332 A CN112152332 A CN 112152332A CN 201910576175 A CN201910576175 A CN 201910576175A CN 112152332 A CN112152332 A CN 112152332A
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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
- H02J50/90—Circuit arrangements or systems for wireless supply or distribution of electric power involving detection or optimisation of position, e.g. alignment
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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
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
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Abstract
The present disclosure provides an information display method, apparatus, and storage medium. The method comprises the following steps: acquiring magnetic field parameters of a magnet arranged in power transmitting equipment for wirelessly charging power receiving equipment through a magnetic induction sensor; determining the position of a sending coil according to the magnetic field parameters of the magnet; determining a position adjustment parameter of the power receiving equipment according to the position of a receiving coil and the position of a transmitting coil in the power receiving equipment; and displaying the position adjustment guide information according to the position adjustment parameters. According to the technical scheme provided by the embodiment of the disclosure, a user can directly adjust the guide information according to the displayed position, and adjust the placing position of the power receiving equipment (such as a mobile phone) on the power transmitting equipment (such as a wireless charger), so that the receiving coil in the power receiving equipment and the transmitting coil in the power transmitting equipment are aligned as much as possible, and the charging efficiency is improved.
Description
Technical Field
The embodiment of the disclosure relates to the technical field of wireless charging, in particular to an information display method, an information display device and a storage medium.
Background
The wireless charging technology is a charging technology that transmits electric energy by using an electromagnetic induction principle, that is, by using an alternating magnetic field generated between coils.
In the related art, taking wireless charging of a mobile phone as an example, the mobile phone is placed on a wireless charging device, a transmitting coil is arranged in the wireless charging device, and a receiving coil is arranged in the mobile phone.
However, in the related art, when the placement position of the mobile phone on the wireless charging device is not appropriate, the charging efficiency cannot be ensured.
Disclosure of Invention
The embodiment of the disclosure provides an information display method, an information display device and a storage medium. The technical scheme is as follows:
according to a first aspect of the embodiments of the present disclosure, there is provided an information display method applied in a power receiving device, the method including:
acquiring magnetic field parameters of a magnet arranged in power transmitting equipment for wirelessly charging the power receiving equipment through a magnetic induction sensor; wherein a center position of the magnet is aligned with a center position of a transmitting coil of the power transmitting apparatus;
determining the position of the sending coil according to the magnetic field parameters of the magnet;
determining a position adjustment parameter of the power receiving equipment according to the position of a receiving coil in the power receiving equipment and the position of a transmitting coil; wherein the position adjustment parameter is used for adjusting the relative position of the receiving coil and the transmitting coil;
and displaying position adjustment guide information according to the position adjustment parameters, wherein the position adjustment guide information is used for guiding a user to adjust the placing position of the power receiving equipment on the power sending equipment.
Optionally, the determining the position of the transmitting coil according to the magnetic field parameter of the magnet includes:
determining the magnetic field component of the magnet in the horizontal direction according to the magnetic field parameters of the magnet, wherein the magnetic field parameters of the magnet comprise the magnetic field direction and the magnetic field size;
and determining the position of the sending coil according to the magnetic field component and a target mapping relation, wherein the target mapping relation is used for describing the mapping relation between the magnetic field component and the position of the sending coil.
Optionally, before determining the position of the sending coil according to the magnetic field component and the target mapping relationship, the method further includes:
acquiring n positions of the transmitting coil, wherein n is an integer greater than 1;
acquiring magnetic field components corresponding to the n positions respectively through the magnetic induction sensor;
and determining the target mapping relation according to the n positions and the magnetic field components corresponding to the n positions respectively.
Optionally, the determining a position adjustment parameter of the power receiving device according to the position of the receiving coil in the power receiving device and the position of the transmitting coil includes:
determining the position adjustment parameter according to a first relative position vector between the receiving coil and the magnetic induction sensor and a second relative position vector between the magnetic induction sensor and the transmitting coil;
the position adjusting parameters comprise an adjusting direction and an adjusting distance, and the adjusting direction points to the central position of the sending coil.
Optionally, the position adjustment guidance information includes adjustment direction guidance information and/or adjustment distance guidance information;
the adjustment direction guide information is used for indicating an adjustment direction of the placement position of the power receiving device, and the adjustment distance guide information is used for indicating an adjustment distance of the placement position of the power receiving device.
Optionally, the method further comprises:
displaying charging efficiency indication information, wherein the charging efficiency indication information is used for indicating the charging efficiency of the power receiving equipment.
Optionally, the method further comprises:
displaying charging speed indication information, wherein the charging speed indication information is used for indicating the charging speed of the power receiving equipment.
Optionally, the method further comprises:
and when the placing position of the power receiving equipment on the power transmitting equipment does not meet the requirement, displaying charging time prompt information, wherein the charging time prompt information is used for indicating that the time for saving the charging time is long after the placing position of the power receiving equipment is adjusted to meet the requirement.
According to a second aspect of the embodiments of the present disclosure, there is provided an information display apparatus, the apparatus including:
a magnetic field parameter acquisition module configured to acquire, by a magnetic induction sensor, a magnetic field parameter of a magnet provided in a power transmission device for wirelessly charging the power reception device; wherein a center position of the magnet is aligned with a center position of a transmitting coil of the power transmitting apparatus;
a transmit position determination module configured to determine a position of the transmit coil based on a magnetic field parameter of the magnet;
an adjustment parameter determination module configured to determine a position adjustment parameter of the power receiving device according to a position of a receiving coil in the power receiving device and a position of the transmitting coil; wherein the position adjustment parameter is used for adjusting the relative position of the receiving coil and the transmitting coil;
a guiding information display module configured to display position adjustment guiding information according to the position adjustment parameter, wherein the position adjustment guiding information is used for guiding a user to adjust the placing position of the power receiving device on the power transmitting device.
Optionally, the sending location determining module is configured to:
determining the magnetic field component of the magnet in the horizontal direction according to the magnetic field parameters of the magnet, wherein the magnetic field parameters of the magnet comprise the magnetic field direction and the magnetic field size;
and determining the position of the sending coil according to the magnetic field component and a target mapping relation, wherein the target mapping relation is used for describing the mapping relation between the magnetic field component and the position of the sending coil.
Optionally, the apparatus further comprises:
a transmit position acquisition module configured to acquire n positions of the transmit coil, n being an integer greater than 1;
a magnetic field component acquisition module configured to acquire, by the magnetic induction sensor, magnetic field components corresponding to the n positions respectively;
a mapping determination module configured to determine the target mapping according to the n positions and the magnetic field components corresponding to the n positions respectively.
Optionally, the adjustment parameter determination module is configured to:
determining the position adjustment parameter according to a first relative position vector between the receiving coil and the magnetic induction sensor and a second relative position vector between the magnetic induction sensor and the transmitting coil;
the position adjusting parameters comprise an adjusting direction and an adjusting distance, and the adjusting direction points to the central position of the sending coil.
Optionally, the position adjustment guidance information includes adjustment direction guidance information and/or adjustment distance guidance information;
the adjustment direction guide information is used for indicating an adjustment direction of the placement position of the power receiving device, and the adjustment distance guide information is used for indicating an adjustment distance of the placement position of the power receiving device.
Optionally, the apparatus further comprises:
an efficiency information display module configured to display charging efficiency indication information indicating a charging efficiency of the power receiving device.
Optionally, the apparatus further comprises:
a speed information display module configured to display charging speed indication information indicating a charging speed of the power receiving device.
Optionally, the apparatus further comprises:
the time information display module is configured to display charging time prompt information when the placing position of the power receiving device on the power transmitting device does not meet requirements, wherein the charging time prompt information is used for indicating that the charging time is saved after the placing position of the power receiving device is adjusted to meet the requirements.
According to a third aspect of the embodiments of the present disclosure, there is provided an information display apparatus including:
a processor;
a memory for storing executable instructions of the processor;
wherein the processor is configured to:
acquiring magnetic field parameters of a magnet arranged in power transmitting equipment for wirelessly charging the power receiving equipment through a magnetic induction sensor; wherein a center position of the magnet is aligned with a center position of a transmitting coil of the power transmitting apparatus;
determining the position of the sending coil according to the magnetic field parameters of the magnet;
determining a position adjustment parameter of the power receiving equipment according to the position of a receiving coil in the power receiving equipment and the position of a transmitting coil; wherein the position adjustment parameter is used for adjusting the relative position of the receiving coil and the transmitting coil;
and displaying position adjustment guide information according to the position adjustment parameters, wherein the position adjustment guide information is used for guiding a user to adjust the placing position of the power receiving equipment on the power sending equipment.
According to a fourth aspect of embodiments of the present disclosure, there is provided a non-transitory computer readable storage medium having stored thereon a computer program which, when executed by a processor, performs the steps of the method according to the first aspect.
The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects:
according to the technical scheme provided by the embodiment of the disclosure, magnetic field parameters of a magnet in power transmitting equipment are acquired through a magnetic induction sensor; determining the position of the sending coil according to the magnetic field parameters of the magnet; further determining a position adjustment parameter of the power receiving device to display position adjustment guide information according to the position adjustment parameter. The position adjustment guiding information is used for guiding a user to adjust the placing position of the power receiving equipment on the power transmitting equipment. Compare in the correlation technique, when the locating place of cell-phone on wireless charging equipment is improper, can lead to charging efficiency can not obtain guaranteeing. According to the technical scheme provided by the embodiment of the disclosure, a user can directly adjust the guide information according to the displayed position, and adjust the placing position of the power receiving equipment (such as a mobile phone) on the power transmitting equipment (such as a wireless charger), so that the receiving coil in the power receiving equipment and the transmitting coil in the power transmitting equipment are aligned as much as possible, and the charging efficiency is improved.
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. 1 is a schematic diagram illustrating an application scenario in accordance with an exemplary embodiment;
FIG. 2 is a flow chart illustrating a method of displaying information according to an exemplary embodiment;
fig. 3 schematically shows a cross-sectional view of a power transmitting device;
FIG. 4 is a flow chart illustrating a method of displaying information in accordance with another exemplary embodiment;
FIG. 5 illustrates a schematic diagram of a magnetic field component;
FIG. 6 is a diagram illustrating an exemplary position adjustment parameter;
fig. 7 is a diagram illustrating a location adjustment guide information;
fig. 8 is a diagram illustrating a charging efficiency indication information;
fig. 9 is a diagram illustrating another charge efficiency indicating information;
fig. 10 is a diagram illustrating an example of a charge time reminder message;
FIG. 11 is a block diagram illustrating an information display device according to an exemplary embodiment;
FIG. 12 is a block diagram illustrating an information display apparatus according to another exemplary embodiment
Fig. 13 is a schematic diagram illustrating a structure of a power receiving apparatus according to an exemplary embodiment;
fig. 14 is a schematic diagram illustrating a structure of a power transmission apparatus according to an exemplary 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.
FIG. 1 is a schematic diagram illustrating an application scenario in accordance with an exemplary embodiment. The application scenario may include: a power transmission device 10 and a power reception device 20.
The power transmission device 10 refers to a device for supplying power to a powered device in a wireless charging system. The name of the power transmission device 10 may be different in different application scenarios. For example, when the power transmission device 10 is used to wirelessly charge a portable electronic device such as a cell phone, a tablet, a wearable device, etc., the power transmission device 10 may be referred to as a charger, a charging tray, a power adapter, a wireless charger, etc.
The power receiving device 20 refers to a device for receiving power in wireless charging, that is, a power-using device. The power receiving device 20 may be any electric device supporting wireless charging, such as a mobile phone, a tablet computer, a wearable device, and other terminal devices, which is not limited in the embodiment of the present disclosure.
The technical scheme provided by the embodiment of the disclosure is suitable for wireless charging scenes of terminal equipment such as mobile phones, tablet computers and wearable equipment.
Fig. 2 is a flow chart illustrating a method of displaying information according to an example embodiment. The method is applicable to the power receiving device 10 described above. The method comprises the following steps (steps 201-204):
in step 201, magnetic field parameters of a magnet provided in a power transmission device for wirelessly charging a power reception device are acquired by a magnetic induction sensor.
The magnetic induction sensor refers to a device capable of detecting a magnetic field and extracting information therefrom, which can convert a magnetic signal into an electric signal. In the embodiment of the present disclosure, a magnetic induction sensor may be mounted in the power reception apparatus, and the magnetic induction sensor may be provided on a main board of the power reception apparatus. By the magnetic induction sensor, the power reception device can acquire the magnetic field parameter of the magnet provided in the power transmission device.
For the description of the power receiving device and the power transmitting device, please refer to the related contents in the embodiment of fig. 1, and the description thereof is omitted.
In the embodiment of the present disclosure, a magnet may be installed in the power transmission device, and a relative position of the power reception device and the power transmission device may be further adjusted by a magnetic field generated by the magnet.
Wherein the center position of the magnet is aligned with the center position of the transmitting coil of the power transmitting device.
Alternatively, the magnet may be a circular magnet. On one hand, when the magnet is circular, the magnet is aligned with the center position of a sending coil of the power sending equipment, so that the position of the sending coil can be accurately determined; on the other hand, the magnetic field distribution of the circular magnet is relatively uniform, and the magnetic field parameters acquired by the magnetic induction sensor are relatively stable. In some other embodiments, the magnet may have other shapes, which is not limited by the embodiments of the present disclosure.
In addition, the magnet may be disposed above the transmitting coil or below the transmitting coil, which is not limited in the embodiments of the present disclosure.
Optionally, the power transmission device may further include a magnetic shielding sheet, which may be used for magnetic conduction, magnetic shielding, thermal conduction, and the like. The magnetism isolating sheet can be a hard magnetic sheet or a soft magnetic sheet. When the magnetism isolating sheet is a hard magnetic sheet, the magnetism isolating sheet can be a ferrite sheet formed by high-temperature sintering; has high magnetic permeability. When the magnetism isolating sheet is a soft magnetic sheet, the magnetism isolating sheet can be made of alloy magnetic powder, plastic or rubber and the like, and has the advantages of being soft in material, thin in thickness, high in customization degree and the like.
Exemplarily, referring to fig. 3 in combination, a schematic cross-sectional view of a power transmission device is exemplarily shown. The transmission coil 30, the magnet spacer 40, and the magnet 50 are stacked in this order from top to bottom, and the centers of the transmission coil 30, the magnet spacer 40, and the magnet 50 are positioned on the same straight line.
In step 202, the position of the transmitting coil is determined based on the magnetic field parameters of the magnet.
The magnetic field parameter of the magnet refers to a parameter related to a magnetic field generated by the magnet. The magnetic field parameters may include a magnetic field direction and a magnetic field magnitude. Wherein, the magnetic field direction refers to the direction in which the magnetic induction lines of the magnetic field point; the magnitude of the magnetic field refers to the strength of the magnetic field.
Since the center position of the magnet is aligned with the center position of the transmission coil of the power transmission device, the direction of the magnetic field generated by the magnet is directed toward the center position of the magnet and also toward the center position of the transmission coil. Therefore, after acquiring the magnetic field parameter of the magnet, the magnetic induction sensor can further determine the position of the transmission coil according to the magnetic field parameter of the magnet.
In step 203, a position adjustment parameter of the power receiving device is determined according to the position of the receiving coil and the position of the transmitting coil in the power receiving device.
After determining the position of the transmitting coil, a position adjustment parameter of the power receiving device may be determined in conjunction with the position of the receiving coil in the power receiving device. The position adjusting parameter is used for adjusting the relative position of the receiving coil and the sending coil so as to align the receiving coil and the sending coil.
In one possible implementation, a relative position vector of the receiving coil and the transmitting coil may be calculated directly from the position of the receiving coil and the position of the transmitting coil, the relative position vector including a direction of the relative position and a distance of the relative position; further, by the relative position vector of the receiving coil and the transmitting coil, the position adjustment parameter of the power receiving device can be determined.
In a further possible embodiment, the position adjustment parameter can be determined from a first relative position vector between the receiving coil and the magnetic induction sensor and a second relative position vector between the magnetic induction sensor and the transmitting coil. For an introduction of such a possible implementation, please refer to the following embodiment of fig. 4, which is not described herein again.
In step 204, position adjustment guidance information is displayed according to the position adjustment parameter.
After obtaining the position adjustment parameter, the power receiving device may display position adjustment guide information. The position adjustment guiding information is used for guiding a user to adjust the placing position of the power receiving device on the power transmitting device.
Optionally, the position adjustment guidance information includes adjustment direction guidance information and/or adjustment distance guidance information. The adjustment direction guide information is used for indicating the adjustment direction of the placement position of the power receiving device, and the adjustment distance guide information is used for indicating the adjustment distance of the placement position of the power receiving device.
According to the position adjustment guide information, a user can adjust the placing position of the power receiving device (such as a mobile phone) on the power transmitting device (such as a wireless charger), so that the receiving coil in the power receiving device and the transmitting coil in the power transmitting device are aligned as far as possible, and the charging efficiency is improved.
In summary, according to the technical scheme provided by the embodiment of the present disclosure, magnetic field parameters of a magnet in power transmission equipment are acquired through a magnetic induction sensor; determining the position of the sending coil according to the magnetic field parameters of the magnet; further determining a position adjustment parameter of the power receiving device to display position adjustment guide information according to the position adjustment parameter. The position adjustment guiding information is used for guiding a user to adjust the placing position of the power receiving equipment on the power transmitting equipment. Compare in the correlation technique, when the locating place of cell-phone on wireless charging equipment is improper, can lead to charging efficiency can not obtain guaranteeing. According to the technical scheme provided by the embodiment of the disclosure, a user can directly adjust the guide information according to the displayed position, and adjust the placing position of the power receiving equipment (such as a mobile phone) on the power transmitting equipment (such as a wireless charger), so that the receiving coil in the power receiving equipment and the transmitting coil in the power transmitting equipment are aligned as much as possible, and the charging efficiency is improved.
Fig. 4 is a flowchart illustrating an information display method according to another exemplary embodiment. The method is applicable to the power receiving device 10 described above. The method can comprise the following steps (steps 401-405):
in step 401, magnetic field parameters of a magnet provided in a power transmission device for wirelessly charging a power reception device are acquired by a magnetic induction sensor.
This step is the same as or similar to the step 201 in the embodiment of fig. 2, and is not described here again.
In step 402, a magnetic field component of the magnet in the horizontal direction is determined based on the magnetic field parameters of the magnet.
The magnetic field parameters of the magnet comprise the magnetic field direction and the magnetic field size. When the magnet passes through the magnetic induction sensor, magnetic field components can be generated in different directions.
Exemplarily, reference is made in combination to part (a) and part (b) in fig. 5, where part (a) shows a schematic view of a magnetic field component in the XY plane (i.e., horizontal direction) and part (b) shows a schematic view of a magnetic field component in the Z axis. A magnet 50 is provided below the transmission coil 30 of the power transmission device. When the power reception device 20 is placed on the power transmission device, the magnetic field generated by the magnet 50 passes through the magnetic induction sensor 60 and forms magnetic field components in the X-axis, Y-axis, and Z-axis.
In step 403, the position of the transmitting coil is determined based on the magnetic field component and the target mapping relationship.
When the magnetic induction sensor is far away from a magnet in the power transmitting equipment, the magnetic field component acquired by the magnetic induction sensor is small; when the magnetic induction sensor is close to the magnet in the power transmission device, the magnetic field component acquired by the magnetic induction sensor is large. Since the center position of the magnet is aligned with the center position of the transmission coil of the power transmission device, there is a certain mapping relationship between the magnetic field component and the position of the transmission coil.
The above target mapping relation is used to describe a mapping relation between the magnetic field component and the position of the transmitting coil. In the case of determining the components of the magnetic field, the position of the transmitting coil can be determined from the target mapping relation.
Optionally, before determining the position of the transmitting coil according to the magnetic field component and the target mapping relationship, the target mapping relationship may be determined, including the following steps:
(1) acquiring n positions of the transmitting coil, wherein n is an integer larger than 1.
(2) And acquiring magnetic field components corresponding to the n positions respectively through the magnetic induction sensor.
(3) And determining a target mapping relation according to the n positions and the magnetic field components corresponding to the n positions respectively.
The power receiving equipment can acquire n different positions of the transmitting coil, and the magnetic field components acquired by the magnetic induction sensor at different positions are different. According to the n positions and the magnetic field components corresponding to the n positions, the mapping relation between the magnetic field components and the positions of the sending coils, namely the target mapping relation, can be obtained through fitting.
In step 404, a position adjustment parameter is determined based on a first relative position vector between the receiving coil and the magnetic induction sensor and a second relative position vector between the magnetic induction sensor and the transmitting coil.
Since both the magnetic induction sensor and the receiving coil are arranged on the power receiving device, the fixing of the first relative position vector between the receiving coil and the magnetic induction sensor is known. In addition, after the position of the sending coil is obtained, a second relative position vector between the magnetic induction sensor and the sending coil can be further obtained; further position adjustment parameters may be determined.
Wherein the relative position vector comprises a relative position distance and a relative position direction; the position adjustment parameters comprise an adjustment direction and an adjustment distance, and the adjustment direction points to the central position of the sending coil.
By way of example, with reference to fig. 6 in combination, a coordinate system is established with the center of the receiving coil, by means of which coordinate system the relative positional relationship between the receiving coil, the magnetic induction sensor and the transmitting coil is described. The point O indicates the position of the receiving coil, the point a indicates the position of the magnetic induction sensor, and the point B indicates the position of the transmitting coil. The vector OA represents a first relative position vector between the receiving coil and the magnetic induction sensor, and the vector AB represents a second relative position vector between the magnetic induction sensor and the transmitting coil. According to the vector calculation rule, a vector OB indicating the position adjustment parameter can be obtained.
In step 405, according to the position adjustment parameter, position adjustment guide information is displayed,
the position adjustment guide information is used for guiding a user to adjust the placement position of the power receiving device on the power transmitting device. Optionally, the position adjustment guidance information includes adjustment direction guidance information and/or adjustment distance guidance information. The adjustment direction guide information is used for indicating the adjustment direction of the placement position of the power receiving device, and the adjustment distance guide information is used for indicating the adjustment distance of the placement position of the power receiving device.
In addition, the position adjustment guide information may be displayed in the form of an icon, may also be displayed in the form of a character, and may also be displayed by combining a character and an icon, which is not limited in the embodiment of the present disclosure.
Exemplary, referring to fig. 7 in combination, a schematic diagram of a position adjustment guide message is exemplarily shown. The position adjustment guide information displayed in the power reception device 10 is displayed in the form of an icon including a circle 71 representing the transmission coil and an arrow 72 representing the adjustment direction and distance. The direction of the arrow 72 points to the center position of the transmitting coil. The user can adjust the placement position of the power reception device 10 on the power transmission device 20 according to the icon adjustment.
In one example, in addition to the above-described position adjustment guide information, charging efficiency indication information may be displayed.
The charging efficiency indication information is used for indicating the charging efficiency of the power receiving equipment. The charging efficiency includes a current charging efficiency, and/or a current efficiency loss indicative of a loss incurred when the current receive coil and transmit coil are misaligned.
Alternatively, the power receiving device may obtain the current charging efficiency through the following steps:
(1) acquiring a current output electric signal of the sending coil, wherein the current output electric signal comprises a current output current and a current output voltage;
(2) and calculating the current charging efficiency according to the current output electric signal and the current input electric signal of the receiving coil, wherein the current input electric signal comprises the current input current and the current input voltage.
Illustratively, the present output current of the transmitting coil is IoutThe current output voltage is Uout(ii) a The current input current of the receiving coil is IinCurrent input voltage Uin(ii) a Further, the current charging efficiency η may be calculated according to the following formula:
exemplarily, referring to fig. 8 in combination, a schematic diagram of charging efficiency indication information is exemplarily shown. After the user adjusts the position according to the position adjustment guide information, the sending coil and the receiving coil are aligned, and the charging efficiency is highest.
Alternatively, the power receiving device may obtain the current efficiency loss by:
(1) and acquiring the expected charging efficiency under the current electric quantity.
The above relationship expects that the charging efficiency is used to indicate the charging efficiency when the receiving coil and the transmitting coil are aligned at the current amount of power. Since the charging efficiency when the receiving coil and the transmitting coil are aligned is different under different electric quantities, there is a mapping relationship between the electric quantities and the expected charging efficiency.
Therefore, the power receiving device, knowing the current amount of power, can determine the desired charging efficiency at the current amount of power according to the mapping between the amount of power and the desired charging efficiency.
(2) And calculating the current efficiency loss according to the expected charging efficiency and the current charging efficiency.
After knowing the current charging efficiency and the desired charging efficiency, the two may be subtracted, resulting in a current efficiency loss.
Exemplarily, referring to fig. 9 in combination, a schematic diagram of another charging efficiency indication information is exemplarily shown. The current electric quantity is 58%, and the charging efficiency indication information shows that the current efficiency loss is 20%.
In another example, a charging speed indication may also be displayed. The charging speed indication information is used for indicating the charging speed of the power receiving device.
Alternatively, the charging speed indication information may be displayed by a rotation speed of an icon displayed on the power reception device for indicating the current state of charge. When the rotating speed is higher, the charging speed is higher; conversely, when the rotation speed is slow, it means that the charging speed is slow.
Alternatively, the charging speed indication information may also be directly displayed in a digital form. For example, it may be expressed as 100% assuming the fastest charging speed.
Alternatively, the charge rate indication may also be represented by the number of target graphics displayed on the power receiving device. For example, the target image is a five-pointed star, and when more five-pointed stars are displayed, the charging speed is indicated to be faster; conversely, when fewer stars are displayed, this indicates a slower charging speed.
In addition, the display can be performed in other forms, and the embodiment of the disclosure is not described in detail.
In one example, when the placement position of the power receiving device on the power transmitting device does not meet the requirement, the charging time prompt message is displayed. The charging time prompt message is used for indicating that the charging time is saved after the placing position of the power receiving equipment is adjusted to meet the requirement.
Exemplarily, referring to fig. 10 in combination, a schematic diagram of a charging time prompting message is exemplarily shown. When the placement position of the power receiving device on the power transmitting device does not meet the requirement, displaying 'the charging time can be saved by 25 minutes after adjustment'.
To sum up, according to the technical solution provided by the embodiment of the present disclosure, after the position adjustment parameter of the power receiving device is determined, the position adjustment guiding information is displayed. The position adjustment guiding information is used for guiding a user to adjust the placing position of the power receiving equipment on the power transmitting equipment. Compare in the correlation technique, when the locating place of cell-phone on wireless charging equipment is improper, can lead to charging efficiency can not obtain guaranteeing. According to the technical scheme provided by the embodiment of the disclosure, a user can directly adjust the guide information according to the displayed position, and adjust the placing position of the power receiving equipment (such as a mobile phone) on the power transmitting equipment (such as a wireless charger), so that the receiving coil in the power receiving equipment and the transmitting coil in the power transmitting equipment are aligned as much as possible, and the charging efficiency is improved.
In addition, by displaying the charging efficiency indication information, the charging speed indication information, the charging time prompt information and the like, on one hand, the influence caused when the receiving coil and the transmitting coil are not aligned can be prompted to a user, and on the other hand, the benefit after the receiving coil and the transmitting coil are aligned can be prompted to the user.
The following are embodiments of the disclosed apparatus that may be used to perform embodiments of the disclosed methods. For details not disclosed in the embodiments of the apparatus of the present disclosure, refer to the embodiments of the method of the present disclosure.
Fig. 11 is a block diagram illustrating an information display apparatus according to an exemplary embodiment. The device has the functions of realizing the method examples, and the functions can be realized by hardware or by hardware executing corresponding software. The apparatus may be the power receiving device described above, or may be provided on the power receiving device. The apparatus 1100 may include: a magnetic field parameter acquisition module 1110, a transmission position determination module 1120, an adjustment parameter determination module 1130, and a guidance information display module 1140.
A magnetic field parameter acquisition module 1110 configured to acquire, by a magnetic induction sensor, a magnetic field parameter of a magnet provided in a power transmission device for wirelessly charging the power reception device; wherein a center position of the magnet is aligned with a center position of a transmitting coil of the power transmitting apparatus.
A transmit position determination module 1120 configured to determine a position of the transmit coil based on the magnetic field parameters of the magnet.
An adjustment parameter determination module 1130 configured to determine a position adjustment parameter of the power receiving device according to a position of a receiving coil in the power receiving device and a position of the transmitting coil; wherein the position adjustment parameter is used for adjusting the relative position of the receiving coil and the transmitting coil.
A guiding information display module 1140 configured to display position adjustment guiding information according to the position adjustment parameter, wherein the position adjustment guiding information is used for guiding a user to adjust the placement position of the power receiving device on the power transmitting device.
In summary, according to the technical scheme provided by the embodiment of the present disclosure, magnetic field parameters of a magnet in power transmission equipment are acquired through a magnetic induction sensor; determining the position of the sending coil according to the magnetic field parameters of the magnet; further determining a position adjustment parameter of the power receiving device to display position adjustment guide information according to the position adjustment parameter. The position adjustment guiding information is used for guiding a user to adjust the placing position of the power receiving equipment on the power transmitting equipment. Compare in the correlation technique, when the locating place of cell-phone on wireless charging equipment is improper, can lead to charging efficiency can not obtain guaranteeing. According to the technical scheme provided by the embodiment of the disclosure, a user can directly adjust the guide information according to the displayed position, and adjust the placing position of the power receiving equipment (such as a mobile phone) on the power transmitting equipment (such as a wireless charger), so that the receiving coil in the power receiving equipment and the transmitting coil in the power transmitting equipment are aligned as much as possible, and the charging efficiency is improved.
In an exemplary embodiment, the transmission position determining module 1120 is configured to determine the magnetic field component of the magnet in the horizontal direction according to the magnetic field parameters of the magnet, which include the magnetic field direction and the magnetic field magnitude; and determining the position of the sending coil according to the magnetic field component and a target mapping relation, wherein the target mapping relation is used for describing the mapping relation between the magnetic field component and the position of the sending coil.
In an exemplary embodiment, as shown in fig. 12, the apparatus 1100 further comprises: a transmission position acquisition module 1150, a magnetic field component acquisition module 1160, and a mapping relationship determination module 1170.
A transmit position acquisition module 1150 configured to acquire n positions of the transmit coil, where n is an integer greater than 1.
A magnetic field component acquiring module 1160 configured to acquire magnetic field components corresponding to the n positions respectively through the magnetic induction sensors.
A mapping relation determining module 1170 configured to determine the target mapping relation according to the n positions and the magnetic field components corresponding to the n positions respectively.
In an exemplary embodiment, the adjustment parameter determination module 1130 is configured to determine the position adjustment parameter from a first relative position vector between the receiving coil and the magnetic induction sensor and a second relative position vector between the magnetic induction sensor and the transmitting coil; the position adjusting parameters comprise an adjusting direction and an adjusting distance, and the adjusting direction points to the central position of the sending coil.
In an exemplary embodiment, the position adjustment guide information includes adjustment direction guide information and/or adjustment distance guide information; the adjustment direction guide information is used for indicating an adjustment direction of the placement position of the power receiving device, and the adjustment distance guide information is used for indicating an adjustment distance of the placement position of the power receiving device.
In an exemplary embodiment, as shown in fig. 12, the apparatus 1100 further comprises: efficiency information display module 1180.
An efficiency information display module 1180 configured to display charging efficiency indication information, where the charging efficiency indication information is used to indicate charging efficiency of the power receiving device.
In an exemplary embodiment, as shown in fig. 12, the apparatus 1100 further comprises: speed information display module 1190.
A speed information display module 1190 configured to display charging speed indication information indicating a charging speed of the power receiving device.
In an exemplary embodiment, as shown in fig. 12, the apparatus further includes: a time information display module 1200.
A time information display module 1200 configured to display charging time prompt information when the placement position of the power receiving device on the power transmitting device does not meet a requirement, where the charging time prompt information is used to indicate a time saving duration of charging time after the placement position of the power receiving device is adjusted to meet the requirement.
It should be noted that, when the apparatus provided in the foregoing embodiment implements the functions thereof, only the division of the functional modules is illustrated, and in practical applications, the functions may be distributed by different functional modules according to needs, that is, the internal structure of the apparatus may be divided into different functional modules to implement all or part of the functions described above. In addition, the apparatus and method embodiments provided by the above embodiments belong to the same concept, and specific implementation processes thereof are described in the method embodiments for details, which are not described herein again.
Another exemplary embodiment of the present disclosure also provides an information display device. The device can realize the information display method provided by the disclosure. The device includes: a processor, and a memory for storing executable instructions for the processor. Wherein the processor is configured to:
acquiring magnetic field parameters of a magnet arranged in power transmitting equipment for wirelessly charging the power receiving equipment through a magnetic induction sensor; wherein a center position of the magnet is aligned with a center position of a transmitting coil of the power transmitting apparatus;
determining the position of the sending coil according to the magnetic field parameters of the magnet;
determining a position adjustment parameter of the power receiving equipment according to the position of a receiving coil in the power receiving equipment and the position of a transmitting coil; wherein the position adjustment parameter is used for adjusting the relative position of the receiving coil and the transmitting coil;
and displaying position adjustment guide information according to the position adjustment parameters, wherein the position adjustment guide information is used for guiding a user to adjust the placing position of the power receiving equipment on the power sending equipment.
In an exemplary embodiment, the processor is further configured to:
determining the magnetic field component of the magnet in the horizontal direction according to the magnetic field parameters of the magnet, wherein the magnetic field parameters of the magnet comprise the magnetic field direction and the magnetic field size;
and determining the position of the sending coil according to the magnetic field component and a target mapping relation, wherein the target mapping relation is used for describing the mapping relation between the magnetic field component and the position of the sending coil.
In an exemplary embodiment, the processor is further configured to:
acquiring n positions of the transmitting coil, wherein n is an integer greater than 1;
acquiring magnetic field components corresponding to the n positions respectively through the magnetic induction sensor;
and determining the target mapping relation according to the n positions and the magnetic field components corresponding to the n positions respectively.
In an exemplary embodiment, the processor is further configured to:
determining the position adjustment parameter according to a first relative position vector between the receiving coil and the magnetic induction sensor and a second relative position vector between the magnetic induction sensor and the transmitting coil;
the position adjusting parameters comprise an adjusting direction and an adjusting distance, and the adjusting direction points to the central position of the sending coil.
In an exemplary embodiment, the position adjustment guide information includes adjustment direction guide information and/or adjustment distance guide information;
the adjustment direction guide information is used for indicating an adjustment direction of the placement position of the power receiving device, and the adjustment distance guide information is used for indicating an adjustment distance of the placement position of the power receiving device.
In an exemplary embodiment, the processor is further configured to:
displaying charging efficiency indication information, wherein the charging efficiency indication information is used for indicating the charging efficiency of the power receiving equipment.
In an exemplary embodiment, the processor is further configured to:
displaying charging speed indication information, wherein the charging speed indication information is used for indicating the charging speed of the power receiving equipment.
In an exemplary embodiment, the processor is further configured to:
and when the placing position of the power receiving equipment on the power transmitting equipment does not meet the requirement, displaying charging time prompt information, wherein the charging time prompt information is used for indicating that the time for saving the charging time is long after the placing position of the power receiving equipment is adjusted to meet the requirement.
Fig. 13 is a schematic diagram illustrating a structure of a power receiving apparatus according to an exemplary embodiment. The power receiving apparatus 1300 may include: a power receiving component 1301, a transmitter/receiver 1302, and a processor 1303.
The power receiving component 1301 is used to receive wireless charging power provided by a power transmitting device. The power receiving component 1301 may receive wireless charging power provided by the power transmitting apparatus in an electromagnetic induction manner. In the embodiment of the present disclosure, the constituent parts and the structure of the power receiving component 1301 are not limited.
The transmitter/receiver 1302 is used to support communication between the power receiving device 1300 and other devices, such as a power transmitting device and/or other power receiving devices.
The processor 1303 controls and manages the operation of the power receiving apparatus 1300, and is configured to execute the processing procedure performed by the power receiving apparatus 1300 in the embodiment of the present disclosure. For example, the processor 1303 is further configured to perform various steps in the above method embodiments, and/or other steps of the technical solutions described in the embodiments of the present disclosure.
Further, the power reception apparatus 1300 may further include a memory 1304, the memory 1304 being used to store program codes and data for the power reception apparatus 1300.
It is to be understood that fig. 13 only shows a simplified design of the power receiving apparatus 1300. In practical applications, the power receiving apparatus 1300 may include more or less components, and all power transmitting apparatuses that can implement the embodiments of the present disclosure are within the scope of the embodiments of the present disclosure.
Fig. 14 is a schematic diagram illustrating a structure of a power transmission apparatus according to an exemplary embodiment. The power transmission device 1400 may include: a power transmitting component 1401, a transmitter/receiver 1402, and a processor 1403.
The transmitter/receiver 1402 is used to support communication between the power transmitting device 1400 and other devices, such as a power receiving device and/or other power transmitting devices.
The processor 1403 performs control management of the action of the power transmission device 1400 for executing the processing procedure performed by the power transmission device 1400 in the embodiment of the present disclosure described above. For example, the processor 1403 is further configured to perform the steps of the above method embodiments, and/or other steps of the technical solutions described in the embodiments of the present disclosure.
Further, the power transmitting apparatus 1400 may also include a memory 1404, the memory 1404 being used to store program codes and data for the power transmitting apparatus 1400.
It is to be understood that fig. 14 shows only a simplified design of the power transmission device 1400. In practical applications, the power transmitting device 1400 may contain more or less components, and all power transmitting devices that can implement the embodiments of the present disclosure are within the scope of the embodiments of the present disclosure.
The disclosed embodiments also provide a non-transitory computer-readable storage medium on which a computer program is stored, the computer program, when executed by a processor of a power transmission apparatus, implementing the above-described information display method.
Alternatively, the non-transitory computer-readable storage medium may be a ROM (Read-Only Memory), a RAM (Random Access Memory), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like.
It should be understood that reference to "a plurality" herein means two or more. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship.
The above description is only exemplary of the present disclosure and is not intended to limit the present disclosure, and any modification, equivalent replacement, or improvement made within the spirit and principle of the present disclosure should be included in the scope of the present disclosure.
Claims (17)
1. An information display method, applied to a power receiving device, the method comprising:
acquiring magnetic field parameters of a magnet arranged in power transmitting equipment for wirelessly charging the power receiving equipment through a magnetic induction sensor; wherein a center position of the magnet is aligned with a center position of a transmitting coil of the power transmitting apparatus;
determining the position of the sending coil according to the magnetic field parameters of the magnet;
determining a position adjustment parameter of the power receiving equipment according to the position of a receiving coil in the power receiving equipment and the position of a transmitting coil; wherein the position adjustment parameter is used for adjusting the relative position of the receiving coil and the transmitting coil;
and displaying position adjustment guide information according to the position adjustment parameters, wherein the position adjustment guide information is used for guiding a user to adjust the placing position of the power receiving equipment on the power sending equipment.
2. The method of claim 1, wherein determining the position of the transmitting coil based on the magnetic field parameters of the magnet comprises:
determining the magnetic field component of the magnet in the horizontal direction according to the magnetic field parameters of the magnet, wherein the magnetic field parameters of the magnet comprise the magnetic field direction and the magnetic field size;
and determining the position of the sending coil according to the magnetic field component and a target mapping relation, wherein the target mapping relation is used for describing the mapping relation between the magnetic field component and the position of the sending coil.
3. The method of claim 2, wherein prior to determining the position of the transmit coil based on the magnetic field component and a target mapping relationship, further comprising:
acquiring n positions of the transmitting coil, wherein n is an integer greater than 1;
acquiring magnetic field components corresponding to the n positions respectively through the magnetic induction sensor;
and determining the target mapping relation according to the n positions and the magnetic field components corresponding to the n positions respectively.
4. The method of claim 1, wherein determining the position adjustment parameter of the power receiving device according to the position of the receiving coil and the position of the transmitting coil in the power receiving device comprises:
determining the position adjustment parameter according to a first relative position vector between the receiving coil and the magnetic induction sensor and a second relative position vector between the magnetic induction sensor and the transmitting coil;
the position adjusting parameters comprise an adjusting direction and an adjusting distance, and the adjusting direction points to the central position of the sending coil.
5. The method according to any one of claims 1 to 4, wherein the position adjustment guidance information includes adjustment direction guidance information and/or adjustment distance guidance information;
the adjustment direction guide information is used for indicating an adjustment direction of the placement position of the power receiving device, and the adjustment distance guide information is used for indicating an adjustment distance of the placement position of the power receiving device.
6. The method according to any one of claims 1 to 4, further comprising:
displaying charging efficiency indication information, wherein the charging efficiency indication information is used for indicating the charging efficiency of the power receiving equipment.
7. The method according to any one of claims 1 to 4, further comprising:
displaying charging speed indication information, wherein the charging speed indication information is used for indicating the charging speed of the power receiving equipment.
8. The method according to any one of claims 1 to 4, further comprising:
and when the placing position of the power receiving equipment on the power transmitting equipment does not meet the requirement, displaying charging time prompt information, wherein the charging time prompt information is used for indicating that the time for saving the charging time is long after the placing position of the power receiving equipment is adjusted to meet the requirement.
9. An information display apparatus, characterized in that the apparatus comprises:
a magnetic field parameter acquisition module configured to acquire, by a magnetic induction sensor, a magnetic field parameter of a magnet provided in a power transmission device for wirelessly charging the power reception device; wherein a center position of the magnet is aligned with a center position of a transmitting coil of the power transmitting apparatus;
a transmit position determination module configured to determine a position of the transmit coil based on a magnetic field parameter of the magnet;
an adjustment parameter determination module configured to determine a position adjustment parameter of the power receiving device according to a position of a receiving coil in the power receiving device and a position of the transmitting coil; wherein the position adjustment parameter is used for adjusting the relative position of the receiving coil and the transmitting coil;
a guiding information display module configured to display position adjustment guiding information according to the position adjustment parameter, wherein the position adjustment guiding information is used for guiding a user to adjust the placing position of the power receiving device on the power transmitting device.
10. The apparatus of claim 9, wherein the transmit position determination module is configured to:
determining the magnetic field component of the magnet in the horizontal direction according to the magnetic field parameters of the magnet, wherein the magnetic field parameters of the magnet comprise the magnetic field direction and the magnetic field size;
and determining the position of the sending coil according to the magnetic field component and a target mapping relation, wherein the target mapping relation is used for describing the mapping relation between the magnetic field component and the position of the sending coil.
11. The apparatus of claim 10, further comprising:
a transmit position acquisition module configured to acquire n positions of the transmit coil, n being an integer greater than 1;
a magnetic field component acquisition module configured to acquire, by the magnetic induction sensor, magnetic field components corresponding to the n positions respectively;
a mapping determination module configured to determine the target mapping according to the n positions and the magnetic field components corresponding to the n positions respectively.
12. The apparatus of claim 9, wherein the adjustment parameter determination module is configured to:
determining the position adjustment parameter according to a first relative position vector between the receiving coil and the magnetic induction sensor and a second relative position vector between the magnetic induction sensor and the transmitting coil;
the position adjusting parameters comprise an adjusting direction and an adjusting distance, and the adjusting direction points to the central position of the sending coil.
13. The apparatus of any one of claims 9 to 12, further comprising:
an efficiency information display module configured to display charging efficiency indication information indicating a charging efficiency of the power receiving device.
14. The apparatus of any one of claims 9 to 12, further comprising:
a speed information display module configured to display charging speed indication information indicating a charging speed of the power receiving device.
15. The apparatus of any one of claims 9 to 12, further comprising:
the time information display module is configured to display charging time prompt information when the placing position of the power receiving device on the power transmitting device does not meet requirements, wherein the charging time prompt information is used for indicating that the charging time is saved after the placing position of the power receiving device is adjusted to meet the requirements.
16. An information display apparatus, characterized in that the apparatus comprises:
a processor;
a memory for storing executable instructions of the processor;
wherein the processor is configured to:
acquiring magnetic field parameters of a magnet arranged in power transmitting equipment for wirelessly charging the power receiving equipment through a magnetic induction sensor; wherein a center position of the magnet is aligned with a center position of a transmitting coil of the power transmitting apparatus;
determining the position of the sending coil according to the magnetic field parameters of the magnet;
determining a position adjustment parameter of the power receiving equipment according to the position of a receiving coil in the power receiving equipment and the position of a transmitting coil; wherein the position adjustment parameter is used for adjusting the relative position of the receiving coil and the transmitting coil;
and displaying position adjustment guide information according to the position adjustment parameters, wherein the position adjustment guide information is used for guiding a user to adjust the placing position of the power receiving equipment on the power sending equipment.
17. A non-transitory computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 8.
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