CN106451631A - Method and device for calibrating wireless charging position - Google Patents
Method and device for calibrating wireless charging position Download PDFInfo
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- CN106451631A CN106451631A CN201610934141.XA CN201610934141A CN106451631A CN 106451631 A CN106451631 A CN 106451631A CN 201610934141 A CN201610934141 A CN 201610934141A CN 106451631 A CN106451631 A CN 106451631A
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Abstract
The invention discloses a device for calibrating a wireless charging position. The device comprises an obtaining module which is used for obtaining a charging power of equipment ready to be charged when the equipment ready to be charged being subjected to wireless charging is detected; a calculating module which is used for calculating a distance between a first nodal point of a transmitting antenna of a wireless charger and a second nodal point of a receiving antenna of the equipment ready to be charged based on the charging power; a prompting module which is used for generating prompt messages which comprises a moving direction and a moving distance of the equipment ready to be charged based on the distance and displaying the prompt messages so as to allow a user to move the equipment ready to be charged based on the prompt messages. The invention also discloses a method for calibrating the wireless charging position. According to the device and method for calibrating the wireless charging position, the outputting of the prompt messages of moving the equipment ready to be charged is achieved according to a current charging power of the equipment ready to be charged so that the user can accurately move the equipment ready to be charged based on the prompt messages, further, a best charging position can be accurately found to charge the equipment ready to be charged.
Description
Technical field
The present invention relates to communication technical field, more particularly, to a kind of wireless charging position calibration method and device.
Background technology
Wireless charging, as a kind of new technique, is applied rapidly in mobile phone and various digital product.By therewith
Supporting wireless charging base, it is possible to achieve point-to-point wireless charging, makes people break away from wired constraint, conveniently opponent
Machine and mobile device carry out wireless charging.
Wireless charging technology make use of electromagnetic induction principle and alternating current impression technology, utilizes coil coupling sending and receiving end
Close and to send and receive the AC signal that sensing produces, and rectification is carried out to alternating current, voltage stabilizing exports to mobile phone and mobile device
It is charged.Therefore, wireless charging base and mobile device have strict position to coincide and require.But, user is using wireless charging
When power technology is charged, often exists and cannot find suitable charging signals position, and cause charge efficiency low.
Content of the invention
The present invention provides a kind of wireless charging position calibration method and device it is intended to solve entering using wireless charging technology
Row cannot find suitable charging signals position and cause charge efficiency low technical problem when charging.
For achieving the above object, a kind of wireless charging location calibration device that the present invention provides, described wireless charging position
Calibrating installation includes：
Acquisition module, for when the charging equipment carrying out wireless charging is detected, obtaining described charging equipment
Charge power；
Computing module, for calculating the first nodal point of the transmitting antenna of described wireless charger based on described charge power
The distance between with the second central point of the reception antenna of described charging equipment；
Reminding module, includes the moving direction of described charging equipment and displacement for generating based on described distance
Information, and show described information, move described charging equipment so that user is based on described information.
In one embodiment, described computing module includes：
First acquisition unit, the reception antenna for being obtained described charging equipment based on described charge power is charged
When effective area；
Computing unit, for calculating the first nodal point of described transmitting antenna and described reception sky based on described effective area
The distance between second central point of line.
In one embodiment, described reminding module includes：
Second acquisition unit, for obtaining the relative position information of described first nodal point and described second central point；
Signal generating unit, for generating, based on described distance and relative position information, the mobile side including described charging equipment
To and displacement information.
In one embodiment, described reception antenna is circular antenna, and described transmitting antenna is circular antenna, described generation
Unit includes：
Obtain subelement, for obtaining the first radius of reception antenna and the second radius of described transmitting antenna；
Computation subunit, for based on described first radius, the second radius, the movement apart from the described charging equipment of calculating
Distance；
Determination subelement, for determining the moving direction of described charging equipment based on described relative position information；
Generate subelement, include the moving direction of described charging equipment and the information of displacement for generating.
In one embodiment, described wireless charging location calibration device also includes：
Sending module, for sending described information to described charging equipment, for described charging equipment base
Show described information in described information.
Additionally, for achieving the above object, the present invention also provides a kind of wireless charging position calibration method, is applied to wireless charging
Electrical equipment, described wireless charging position calibration method comprises the following steps：
When the charging equipment carrying out wireless charging is detected, obtain the charge power of described charging equipment；
The first nodal point calculating the transmitting antenna of described wireless charger based on described charge power is to be charged with described
The distance between second central point of the reception antenna of equipment；
Generated based on described distance and include the moving direction of described charging equipment and the information of displacement, and show
Show described information, move described charging equipment so that user is based on described information.
In one embodiment, the first of the described transmitting antenna calculating described wireless charger based on described charge power
Central point is included with the step of the distance between the second central point of the reception antenna of described charging equipment：
Effective area when being charged based on the reception antenna that described charge power obtains described charging equipment；
Calculate the first nodal point of described transmitting antenna and the second center of described reception antenna based on described effective area
The distance between point.
In one embodiment, described moving direction and the movement including described charging equipment based on described distance generation
The step of the information of distance includes：
Obtain the primary importance information of described first nodal point and the second position information of described second central point；
Generate the mobile side including described charging equipment based on described distance, primary importance information and second position information
To and displacement information.
In one embodiment, described reception antenna is circular antenna, and described transmitting antenna is circular antenna, described is based on
Described distance, primary importance information and second position information generate moving direction and the displacement including described charging equipment
The step of information include：
Obtain the first radius of reception antenna and the second radius of described transmitting antenna；
Based on described first radius, the second radius, the displacement apart from the described charging equipment of calculating；
Determine the moving direction of described charging equipment based on described primary importance information and second position information；
Generate and include the moving direction of described charging equipment and the information of displacement.
In one embodiment, after the step of the described information of described display, described wireless charging position correction side
Method also includes：
Described information is sent to described charging equipment, so that described charging equipment is based on described information
Show described information.
The present invention passes through when the charging equipment carrying out wireless charging is detected, and acquisition module obtains described to be charged set
Standby charge power, then in the first of the transmitting antenna based on the described charge power described wireless charger of calculating for the computing module
The distance between second central point of reception antenna of heart point and described charging equipment, then reminding module is based on described distance
Generate and include the moving direction of described charging equipment and the information of displacement, and show described information, realize
Information according to current charge power this charging equipment of output mobile of charging equipment, allows users to based on should
Information accurately moves charging equipment, and then accurately finds optimal charge position and be charged, and improves to be charged
The charge efficiency of equipment.
Brief description
Fig. 1 is that the hardware configuration realizing the wireless charging device of each embodiment in the present invention is illustrated；
Fig. 2 is the circuit diagram between the wireless charger of each embodiment of the present invention and mobile terminal；
Fig. 3 is the high-level schematic functional block diagram of wireless charging location calibration device first embodiment of the present invention；
Fig. 4 is the structural representation of reception antenna of the present invention and transmitting antenna；
Fig. 5 is the refinement high-level schematic functional block diagram of computing module in wireless charging location calibration device second embodiment；
Fig. 6 is the refinement high-level schematic functional block diagram of reminding module in wireless charging location calibration device 3rd embodiment；
Fig. 7 is the refinement high-level schematic functional block diagram of signal generating unit in wireless charging location calibration device 3rd embodiment；
Fig. 8 is the schematic flow sheet of wireless charging position calibration method first embodiment of the present invention；
Fig. 9 is to calculate described wireless charging based on described charge power in wireless charging position calibration method first embodiment
The step of the distance between second central point of reception antenna of the first nodal point of the transmitting antenna of device and described charging equipment
Rapid refinement schematic flow sheet；
Figure 10 is described to be charged for being included based on described distance generation in wireless charging position calibration method first embodiment
The refinement schematic flow sheet of the step of the information of the moving direction of equipment and displacement；
Figure 11 is described distance, the primary importance information and second of being based in wireless charging position calibration method first embodiment
Positional information generates the refinement flow process of the step of information of the moving direction including described charging equipment and displacement
Schematic diagram.
The realization of the object of the invention, functional characteristics and advantage will be described further in conjunction with the embodiments referring to the drawings.
Specific embodiment
It should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
Realize the wireless charging device of each embodiment of the present invention referring now to Description of Drawings.In follow-up description,
Using such as " module ", " part " or " unit " for representing element suffix only for being conducive to the explanation of the present invention, its
Itself does not have specific meaning.Therefore, " module " and " part " can mixedly use.
The wireless charging position calibration method of the present invention and device application and the wireless charging for charging for mobile terminal
Device, mobile terminal can be implemented in a variety of manners.For example, the terminal described in the present invention can include such as mobile phone,
Smart phone, notebook computer, digit broadcasting receiver, PDA (personal digital assistant), PAD (panel computer), PMP are (portable
Multimedia player) etc. fixed terminal.
Fig. 1 is that the hardware configuration realizing the wireless charging device of each embodiment in the present invention is illustrated.Fig. 2 is that the present invention is each
Circuit diagram between the wireless charger of individual embodiment and mobile terminal.
Wireless charger is provided with processor 110, power management module 120, charging circuit (BUCK circuit) 130, switches and open
Close 140 and the USB module, WPC antenna 150 and/or the A4WP antenna 160 that are connected with charging circuit 130, WPC antenna 150 is
The corresponding antenna of Qi standard that WPC (Wireless Power Consortium, wireless charging alliance) proposes, for transmitting frequency
Rate be 100KHz about electromagnetic wave；A4WP antenna 160 is that Alliance for Wireless Power (A4WP) standard corresponds to
Antenna, for tranmitting frequency for 6.78MHz about electromagnetic wave, wherein, processor pass through switching switch 140 control charge electricity
WPC antenna is passed through on road or electromagnetic wave launched by A4WP antenna, and processor 110 passes through WPC antenna or A4WP in order to control charging circuit
The electromagnetic wave of different frequency launched by antenna.It is additionally provided with change-over circuit between power management module 120 and charging circuit 130, should
The direct current signal that change-over circuit is used for exporting power management module 120 is converted to exchange of information, and exports to charging circuit
130 it is preferable that this change-over circuit is metal-oxide-semiconductor.Wireless charger is provided with bluetooth module, WIFI module and/or NFC module, passes through
Bluetooth module, WIFI module and/or NFC module are communicated with mobile terminal to be charged.
Mobile terminal is provided with power management module, bluetooth module, WIFI module and/or NFC module, power management module bag
Include PMIC (Power Management IC, power management integrated circuit), ChargerIC (Charge Management IC), USB module,
Battery (battery) and WPC antenna and/or A4WP antenna.When charging, mobile terminal can pass through bluetooth module, WIFI
Module and/or NFC module are communicated with wireless charger.
Based on the hardware configuration of above-mentioned wireless charger, each of wireless charging position calibration method of the present invention and device is proposed
Individual embodiment.
The present invention provides a kind of wireless charging location calibration device.With reference to Fig. 3, Fig. 3 is wireless charging position of the present invention school
The high-level schematic functional block diagram of standard apparatus first embodiment.
In the present embodiment, this wireless charging location calibration device includes：
Acquisition module 10, for when the charging equipment carrying out wireless charging is detected, obtaining described charging equipment
Charge power；
In the present embodiment, the charging equipment carrying out wireless charging is being detected, that is, there is currently charging equipment and enter
During row wireless charging, acquisition module 10 obtains the charge power of described charging equipment and the transmitting work(of described wireless charger
Rate, the transmission power of the wireless charger of acquisition module 10 acquisition simultaneously, specifically, when charging equipment carries out wireless charging,
Can in real time or timing is sent the charge power of this charging equipment to wireless by bluetooth module, WIFI module or NFC module
Charge position calibrating installation, for example, sends to the bluetooth module of wireless charger, WIFI module or NFC module, wireless charging afterwards
Electrical equipment sends this charge power to acquisition module 10；Or, when the charging equipment carrying out wireless charging is detected, wirelessly
Charge position calibrating installation sends the acquisition of charge power by the bluetooth module of wireless charger, WIFI module or NFC module
Ask to charging equipment, this charging equipment receive obtain request when, by the bluetooth module of charging equipment, WIFI
Module or NFC module send current charge power to wireless charger.
Computing module 20, for calculating the first center of the transmitting antenna of described wireless charger based on described charge power
Point is the distance between with the second central point of the reception antenna of described charging equipment；
In the present embodiment, computing module 20 is charged according to the reception antenna that charge power obtains described charging equipment
When effective area, and calculated based on described effective area described transmitting antenna first nodal point and described reception antenna the
The distance between two central points.Specifically, when this wireless charger is charged for charging equipment using WPC pattern, Neng Gougen
Obtain the corresponding magnetic flux of current time reception antenna according to charge power, and transmitting antenna current time can be obtained being launched
The magnetic induction of electromagnetic signal, and then effective area when being obtained in that reception antenna is charged.
It is emphasized that in the ideal situation, when charge power is less than transmission power, transmitting antenna transmitting is described
Electromagnetic signal is not received by reception antenna completely it is therefore desirable to adjust the position of reception antenna, in practical situations both it is contemplated that
Energy loss, when charge power is less than the product of transmission power and default ratio, the position of adjustment reception antenna, this default ratio
Value can reasonably be arranged according to actual needs.
In one embodiment, as shown in figure 4, in Fig. 4 reception antenna and transmitting antenna be circle, wherein, shade
Partial area is effective area S, and the radius of reception antenna is r, and the radius of transmitting antenna is R, according to sectorial area formula and
Arc length formula,
S1=SFan BCD-SΔBCD=π R2θ/360-0.5R2sinθ
S2=SFan ACD-SΔACD=π r2β/360-0.5r2sinβ
Wherein, angle θ is the arc CD corresponding central angle BCD of transmitting antenna, and angle beta is the corresponding center of circle of arc CD of reception antenna
Angle ACD.As shown in Figure 4, S=S1+S2, according to formula such as the cosine law and Pythagorean theorem, you can obtains the distance of AB, that is, sends out
Penetrate the first nodal point of antenna and the distance between the second central point of described reception antenna d.
Reminding module 30, for generating, based on described distance, moving direction and the displacement including described charging equipment
Information, and show described information, move described charging equipment so that user is based on described information.
In the present embodiment, taking circular transmitting antenna and reception antenna as a example, the radius of transmitting antenna and reception antenna according to
Secondary for R and r, and then understand first nodal point and the second central point, i.e. the center of circle of transmitting antenna and reception antenna the center of circle it
Between distance be less than or equal to R and r difference when, reception antenna in transmitting antenna or inscribe, now, the filling of charging equipment
Electrical efficiency is maximum, and therefore, this displacement is d-R+r.
When the relative position information of first nodal point and described second central point can be got, can be directly according to this phase
Above-mentioned moving direction is generated to positional information.When this relative position information cannot be obtained, can mark on the surface of wireless charger
Know the home position of this transmitting antenna, and the home position of the display interface display reception antenna in charging equipment, this movement
Direction is " moving the center of circle of reception antenna to the center of circle of transmitting antenna ".
Further, in one embodiment, this wireless charging location calibration device also includes：Sending module, for by institute
State information to send to described charging equipment, so that described charging equipment shows described prompting based on described information
Information.
In the present embodiment, move this charging equipment by charging equipment display reminding information, being easy to user.
The wireless charging location calibration device that the present embodiment proposes, by carrying out the to be charged of wireless charging and setting detecting
When standby, acquisition module 10 obtains the charge power of described charging equipment, and then computing module 20 is based on described charge power meter
Calculate the second central point of the first nodal point of transmitting antenna of described wireless charger and the reception antenna of described charging equipment
The distance between, then reminding module 30 based on described distance generate includes described charging equipment moving direction and movement away from
From information, and show described information it is achieved that according to the current charge power output mobile of charging equipment should
The information of charging equipment, allows users to accurately move charging equipment based on this information, and then accurately looks for
It is charged to optimal charge position, improve the charge efficiency of charging equipment.
The second embodiment of wireless charging location calibration device of the present invention is proposed, with reference to Fig. 5, at this based on first embodiment
In embodiment, computing module 20 includes：
First acquisition unit 21, the reception antenna for being obtained described charging equipment based on described charge power is filled
Effective area when electric；
Specifically, in the present embodiment, first acquisition unit 21 can obtain current time reception antenna according to charge power
Corresponding magnetic flux, and the magnetic induction of transmitting antenna current time institute transmission of electromagnetic signals can be obtained, and then can
Obtain effective area when reception antenna is charged.
Computing unit 22, for calculating the first nodal point of described transmitting antenna and described reception based on described effective area
The distance between second central point of antenna.
In the present embodiment, as shown in figure 4, reception antenna and transmitting antenna are circle, wherein, dash area in Fig. 4
Area is effective area S, and the radius of reception antenna is r, and the radius of transmitting antenna is R, public according to sectorial area formula and arc length
Formula,
S1=SFan BCD-SΔBCD=π R2θ/360-0.5R2sinθ
S2=SFan ACD-SΔACD=π r2β/360-0.5r2sinβ
Wherein, angle θ is the arc CD corresponding central angle BCD of transmitting antenna, and angle beta is the corresponding center of circle of arc CD of reception antenna
Angle ACD.As shown in Figure 4, S=S1+S2, according to formula such as the cosine law and Pythagorean theorem, you can obtains the distance of AB, that is, sends out
Penetrate the first nodal point of antenna and the distance between the second central point of described reception antenna d.
The wireless charging location calibration device that the present embodiment proposes, is based on described charge power by first acquisition unit 21
Obtain the effective area when reception antenna of described charging equipment is charged, then computing unit 22 is based on described significant surface
The distance between the long-pending first nodal point calculating described transmitting antenna and second central point of described reception antenna it is achieved that according to
Charge power accurately obtains the distance between the first nodal point of transmitting antenna and second central point of described reception antenna, carries
The accuracy of the high displacement being subsequently generated, and then the accuracy of mobile charging equipment, further increase to be charged
The charge efficiency of equipment.
The 3rd embodiment of wireless charging location calibration device of the present invention is proposed, with reference to Fig. 6, at this based on first embodiment
In embodiment, reminding module 30 includes：
Second acquisition unit 31, for obtaining the relative position information of described first nodal point and described second central point；
Signal generating unit 32, for generating, based on described distance and relative position information, the movement including described charging equipment
Direction and the information of displacement.
In the present embodiment, taking circular transmitting antenna and reception antenna as a example, the radius of transmitting antenna and reception antenna according to
Secondary for R and r, and then understand first nodal point and the second central point, i.e. the center of circle of transmitting antenna and reception antenna the center of circle it
Between distance be less than or equal to R and r difference when, reception antenna in transmitting antenna or inscribe, now, the filling of charging equipment
Electrical efficiency is maximum, and therefore, this displacement is d-R+r.Get first nodal point and described second in second acquisition unit 31
During the relative position information of central point, directly above-mentioned moving direction, for example, the first center can be generated according to this relative position information
Point is located at the right of described second central point, then this moving direction is to move right, and first nodal point is located at described second center
The top of point, then this moving direction is to move up.
The wireless charging location calibration device that the present embodiment proposes, obtains described first center by second acquisition unit 31
Point and the relative position information of described second central point, then signal generating unit 32 is based on described distance and relative position information generates
The information of the moving direction including described charging equipment and displacement is it is achieved that according to first nodal point and described
The relative position information of two central points accurately generates moving direction and the displacement of charging equipment, and then movement is to be charged
The accuracy of equipment, further increases the charge efficiency of charging equipment.
The fourth embodiment of wireless charging location calibration device of the present invention is proposed, with reference to Fig. 7, at this based on 3rd embodiment
In embodiment, described reception antenna is circular antenna, and described transmitting antenna is circular antenna, and signal generating unit 32 includes：
Obtain subelement 321, for obtaining the first radius of reception antenna and the second radius of described transmitting antenna；
Specifically, obtain subelement 321 to ask to be charged to set by the acquisition of the first radius of transmission/reception antennas
Standby, so that charging equipment obtains, based on described, the first radius that its reception antenna is fed back in request.
Computation subunit 322, for calculating described charging equipment based on described first radius, the second radius, distance
Displacement；
In the present embodiment, in the circle of first nodal point and the second central point, the i.e. center of circle of transmitting antenna and reception antenna
When the distance between heart is less than or equal to the difference of R and r, reception antenna in transmitting antenna or inscribe, now, charging equipment
Charge efficiency maximum, therefore, this displacement is d-R+r.
Determination subelement 323, for determining the moving direction of described charging equipment based on described relative position information；
In the present embodiment, first nodal point and the relative position of described second central point are got in second acquisition unit 31
During confidence breath, directly above-mentioned moving direction can be generated according to this relative position information, for example, first nodal point is located at described second
The right of central point, then this moving direction is to move right, and first nodal point is located at the top of described second central point, then this shifting
Dynamic direction is to move up.
Generate subelement 324, for generating the prompting letter of the moving direction including described charging equipment and displacement
Breath.
The wireless charging location calibration device that the present embodiment proposes, by obtain that subelement 321 obtains reception antenna the
Radius and the second radius of described transmitting antenna, then computation subunit 322 be based on described first radius, the second radius, away from
From the displacement calculating described charging equipment, then determination subelement 323 is described based on described relative position information determination
The moving direction of charging equipment, ultimately produces subelement 324 and generates moving direction and the movement including described charging equipment
The information of distance so that wireless charging location calibration device can accurately obtain moving direction and displacement, and then
The accuracy of mobile charging equipment, further increases the charge efficiency of charging equipment.
The present invention further provides a kind of wireless charging position calibration method.Reference picture, Fig. 8 is wireless charging current potential of the present invention
Put the schematic flow sheet of calibration steps first embodiment.
In the present embodiment, this wireless charging position calibration method includes：
Step S10, when the charging equipment carrying out wireless charging is detected, obtains the charging work(of described charging equipment
Rate；
In the present embodiment, the charging equipment carrying out wireless charging is being detected, that is, there is currently charging equipment and enter
During row wireless charging, acquisition module 10 obtains the charge power of described charging equipment and the transmitting work(of described wireless charger
Rate, the transmission power of the wireless charger of acquisition module 10 acquisition simultaneously, specifically, when charging equipment carries out wireless charging,
Can in real time or timing is sent the charge power of this charging equipment to wireless by bluetooth module, WIFI module or NFC module
Charge position calibrating installation, for example, sends to the bluetooth module of wireless charger, WIFI module or NFC module, wireless charging afterwards
Electrical equipment sends this charge power to acquisition module 10；Or, when the charging equipment carrying out wireless charging is detected, wirelessly
Charge position calibrating installation sends the acquisition of charge power by the bluetooth module of wireless charger, WIFI module or NFC module
Ask to charging equipment, this charging equipment receive obtain request when, by the bluetooth module of charging equipment, WIFI
Module or NFC module send current charge power to wireless charger.
Step S20, calculates first nodal point and the institute of the transmitting antenna of described wireless charger based on described charge power
State the distance between second central point of reception antenna of charging equipment；
In the present embodiment, computing module 20 is charged according to the reception antenna that charge power obtains described charging equipment
When effective area, and calculated based on described effective area described transmitting antenna first nodal point and described reception antenna the
The distance between two central points.Specifically, when this wireless charger is charged for charging equipment using WPC pattern, Neng Gougen
Obtain the corresponding magnetic flux of current time reception antenna according to charge power, and transmitting antenna current time can be obtained being launched
The magnetic induction of electromagnetic signal, and then effective area when being obtained in that reception antenna is charged.
It is emphasized that in the ideal situation, when charge power is less than transmission power, transmitting antenna transmitting is described
Electromagnetic signal is not received by reception antenna completely it is therefore desirable to adjust the position of reception antenna, in practical situations both it is contemplated that
Energy loss, when charge power is less than the product of transmission power and default ratio, the position of adjustment reception antenna, this default ratio
Value can reasonably be arranged according to actual needs.
In one embodiment, as shown in figure 4, in Fig. 4 reception antenna and transmitting antenna be circle, wherein, shade
Partial area is effective area S, and the radius of reception antenna is r, and the radius of transmitting antenna is R, according to sectorial area formula and
Arc length formula,
S1=SFan BCD-SΔBCD=π R2θ/360-0.5R2sinθ
S2=SFan ACD-SΔACD=π r2β/360-0.5r2sinβ
Wherein, angle θ is the arc CD corresponding central angle BCD of transmitting antenna, and angle beta is the corresponding center of circle of arc CD of reception antenna
Angle ACD.As shown in Figure 4, S=S1+S2, according to formula such as the cosine law and Pythagorean theorem, you can obtains the distance of AB, that is, sends out
Penetrate the first nodal point of antenna and the distance between the second central point of described reception antenna d.
Step S30, is generated based on described distance and includes the moving direction of described charging equipment and the prompting of displacement
Information, and show described information, move described charging equipment so that user is based on described information.
In the present embodiment, taking circular transmitting antenna and reception antenna as a example, the radius of transmitting antenna and reception antenna according to
Secondary for R and r, and then understand first nodal point and the second central point, i.e. the center of circle of transmitting antenna and reception antenna the center of circle it
Between distance be less than or equal to R and r difference when, reception antenna in transmitting antenna or inscribe, now, the filling of charging equipment
Electrical efficiency is maximum, and therefore, this displacement is d-R+r.
When the relative position information of first nodal point and described second central point can be got, can be directly according to this phase
Above-mentioned moving direction is generated to positional information.When this relative position information cannot be obtained, can mark on the surface of wireless charger
Know the home position of this transmitting antenna, and the home position of the display interface display reception antenna in charging equipment, this movement
Direction is " moving the center of circle of reception antenna to the center of circle of transmitting antenna ".
Further, in one embodiment, this wireless charging location calibration device also includes：Sending module, for by institute
State information to send to described charging equipment, so that described charging equipment shows described prompting based on described information
Information.
In the present embodiment, move this charging equipment by charging equipment display reminding information, being easy to user.
The wireless charging position calibration method that the present embodiment proposes, by carrying out the to be charged of wireless charging and setting detecting
When standby, acquisition module 10 obtains the charge power of described charging equipment, and then computing module 20 is based on described charge power meter
Calculate the second central point of the first nodal point of transmitting antenna of described wireless charger and the reception antenna of described charging equipment
The distance between, then reminding module 30 based on described distance generate includes described charging equipment moving direction and movement away from
From information, and show described information it is achieved that according to the current charge power output mobile of charging equipment should
The information of charging equipment, allows users to accurately move charging equipment based on this information, and then accurately looks for
It is charged to optimal charge position, improve the charge efficiency of charging equipment.
The second embodiment of wireless charging position calibration method of the present invention is proposed, with reference to Fig. 9, at this based on first embodiment
In embodiment, step S20 includes：
Step S21 is effective when being charged based on the reception antenna that described charge power obtains described charging equipment
Area；
Specifically, in the present embodiment, first acquisition unit 21 can obtain current time reception antenna according to charge power
Corresponding magnetic flux, and the magnetic induction of transmitting antenna current time institute transmission of electromagnetic signals can be obtained, and then can
Obtain effective area when reception antenna is charged.
Step S22, calculates the first nodal point of described transmitting antenna and described reception antenna based on described effective area
The distance between second central point.
In the present embodiment, as shown in figure 4, reception antenna and transmitting antenna are circle, wherein, dash area in Fig. 4
Area is effective area S, and the radius of reception antenna is r, and the radius of transmitting antenna is R, public according to sectorial area formula and arc length
Formula,
S1=SFan BCD-SΔBCD=π R2θ/360-0.5R2sinθ
S2=SFan ACD-SΔACD=π r2β/360-0.5r2sinβ
Wherein, angle θ is the arc CD corresponding central angle BCD of transmitting antenna, and angle beta is the corresponding center of circle of arc CD of reception antenna
Angle ACD.As shown in Figure 4, S=S1+S2, according to formula such as the cosine law and Pythagorean theorem, you can obtains the distance of AB, that is, sends out
Penetrate the first nodal point of antenna and the distance between the second central point of described reception antenna d.
The wireless charging position calibration method that the present embodiment proposes, is based on described charge power by first acquisition unit 21
Obtain the effective area when reception antenna of described charging equipment is charged, then computing unit 22 is based on described significant surface
The distance between the long-pending first nodal point calculating described transmitting antenna and second central point of described reception antenna it is achieved that according to
Charge power accurately obtains the distance between the first nodal point of transmitting antenna and second central point of described reception antenna, carries
The accuracy of the high displacement being subsequently generated, and then the accuracy of mobile charging equipment, further increase to be charged
The charge efficiency of equipment.
The 3rd embodiment of wireless charging position calibration method of the present invention is proposed based on first embodiment, with reference to Figure 10,
In the present embodiment, step S30 includes：
Step S31, obtains the primary importance information of described first nodal point and the second confidence of described second central point
Breath；
Step S32, is generated based on described distance, primary importance information and second position information and includes described charging equipment
Moving direction and displacement information.
In the present embodiment, taking circular transmitting antenna and reception antenna as a example, the radius of transmitting antenna and reception antenna according to
Secondary for R and r, and then understand first nodal point and the second central point, i.e. the center of circle of transmitting antenna and reception antenna the center of circle it
Between distance be less than or equal to R and r difference when, reception antenna in transmitting antenna or inscribe, now, the filling of charging equipment
Electrical efficiency is maximum, and therefore, this displacement is d-R+r.Get first nodal point and described second in second acquisition unit 31
During the relative position information of central point, directly above-mentioned moving direction, for example, the first center can be generated according to this relative position information
Point is located at the right of described second central point, then this moving direction is to move right, and first nodal point is located at described second center
The top of point, then this moving direction is to move up.
The wireless charging position calibration method that the present embodiment proposes, obtains described first center by second acquisition unit 31
Point and the relative position information of described second central point, then signal generating unit 32 is based on described distance and relative position information generates
The information of the moving direction including described charging equipment and displacement is it is achieved that according to first nodal point and described
The relative position information of two central points accurately generates moving direction and the displacement of charging equipment, and then movement is to be charged
The accuracy of equipment, further increases the charge efficiency of charging equipment.
The fourth embodiment of wireless charging position calibration method of the present invention is proposed based on 3rd embodiment, with reference to Figure 11,
In the present embodiment, described reception antenna is circular antenna, and described transmitting antenna is circular antenna, and step S32 includes：
Step S321, obtains the first radius of reception antenna and the second radius of described transmitting antenna；
Specifically, obtain subelement 321 to ask to be charged to set by the acquisition of the first radius of transmission/reception antennas
Standby, so that charging equipment obtains, based on described, the first radius that its reception antenna is fed back in request.
Step S322, based on described first radius, the second radius, the displacement apart from the described charging equipment of calculating；
In the present embodiment, in the circle of first nodal point and the second central point, the i.e. center of circle of transmitting antenna and reception antenna
When the distance between heart is less than or equal to the difference of R and r, reception antenna in transmitting antenna or inscribe, now, charging equipment
Charge efficiency maximum, therefore, this displacement is d-R+r.
Step S323, determines the mobile side of described charging equipment based on described primary importance information and second position information
To；
In the present embodiment, first nodal point and the relative position of described second central point are got in second acquisition unit 31
During confidence breath, directly above-mentioned moving direction can be generated according to this relative position information, for example, first nodal point is located at described second
The right of central point, then this moving direction is to move right, and first nodal point is located at the top of described second central point, then this shifting
Dynamic direction is to move up.
Step S324, generates and includes the moving direction of described charging equipment and the information of displacement.
The wireless charging position calibration method that the present embodiment proposes, by obtain that subelement 321 obtains reception antenna the
Radius and the second radius of described transmitting antenna, then computation subunit 322 be based on described first radius, the second radius, away from
From the displacement calculating described charging equipment, then determination subelement 323 is described based on described relative position information determination
The moving direction of charging equipment, ultimately produces subelement 324 and generates moving direction and the movement including described charging equipment
The information of distance so that wireless charging location calibration device can accurately obtain moving direction and displacement, and then
The accuracy of mobile charging equipment, further increases the charge efficiency of charging equipment.
Through the above description of the embodiments, those skilled in the art can be understood that above-described embodiment side
Method can be realized by the mode of software plus necessary general hardware platform naturally it is also possible to pass through hardware, but in many cases
The former is more preferably embodiment.Based on such understanding, technical scheme is substantially done to prior art in other words
Go out partly can embodying in the form of software product of contribution, this computer software product is stored in a storage medium
In (as ROM/RAM, magnetic disc, CD), including some instructions with so that a station terminal equipment (can be mobile phone, computer, clothes
Business device, air-conditioner, or network equipment etc.) method described in execution each embodiment of the present invention.
These are only the preferred embodiments of the present invention, not thereby limit the present invention the scope of the claims, every using this
Equivalent structure or equivalent flow conversion that bright description and accompanying drawing content are made, or directly or indirectly it is used in other related skills
Art field, is included within the scope of the present invention.
Claims (10)
1. a kind of wireless charging location calibration device is it is characterised in that described wireless charging location calibration device includes：
Acquisition module, for when the charging equipment carrying out wireless charging is detected, obtaining the charging of described charging equipment
Power；
Computing module, the first nodal point for the transmitting antenna based on the described charge power described wireless charger of calculating and institute
State the distance between second central point of reception antenna of charging equipment；
Reminding module, includes the moving direction of described charging equipment and the prompting of displacement for generating based on described distance
Information, and show described information, move described charging equipment so that user is based on described information.
2. wireless charging location calibration device as claimed in claim 1 is it is characterised in that described computing module includes：
First acquisition unit, when the reception antenna for being obtained described charging equipment based on described charge power is charged
Effective area；
Computing unit, for calculating the first nodal point of described transmitting antenna and described reception antenna based on described effective area
The distance between second central point.
3. wireless charging location calibration device as claimed in claim 1 is it is characterised in that described reminding module includes：
Second acquisition unit, for obtaining the relative position information of described first nodal point and described second central point；
Signal generating unit, for generated based on described distance and relative position information the moving direction including described charging equipment and
The information of displacement.
4. wireless charging location calibration device as claimed in claim 3 is it is characterised in that described reception antenna is circular sky
Line, described transmitting antenna is circular antenna, and described signal generating unit includes：
Obtain subelement, for obtaining the first radius of reception antenna and the second radius of described transmitting antenna；
Computation subunit, for based on described first radius, the second radius, distance calculate described charging equipment movement away from
From；
Determination subelement, for determining the moving direction of described charging equipment based on described relative position information；
Generate subelement, include the moving direction of described charging equipment and the information of displacement for generating.
5. the wireless charging location calibration device as described in any one of Claims 1-4 is it is characterised in that described wireless charging
Location calibration device also includes：
Sending module, for sending described information to described charging equipment, so that described charging equipment is based on institute
State information and show described information.
6. a kind of wireless charging position calibration method is it is characterised in that be applied to wireless charger, described wireless charging position school
Quasi- method comprises the following steps：
When the charging equipment carrying out wireless charging is detected, obtain the charge power of described charging equipment；
Calculate the first nodal point of transmitting antenna of described wireless charger and described charging equipment based on described charge power
The distance between the second central point of reception antenna；
Generated based on described distance and include the moving direction of described charging equipment and the information of displacement, and show institute
State information, move described charging equipment so that user is based on described information.
7. wireless charging position calibration method as claimed in claim 6 it is characterised in that described based on described charge power meter
Calculate the second central point of the first nodal point of transmitting antenna of described wireless charger and the reception antenna of described charging equipment
The distance between step include：
Effective area when being charged based on the reception antenna that described charge power obtains described charging equipment；
Calculated based on described effective area described transmitting antenna first nodal point and described reception antenna the second central point it
Between distance.
8. wireless charging position calibration method as claimed in claim 6 is it is characterised in that described generate bag based on described distance
Include the moving direction of described charging equipment and the step of the information of displacement includes：
Obtain the primary importance information of described first nodal point and the second position information of described second central point；
Based on described distance, primary importance information and second position information generate include described charging equipment moving direction and
The information of displacement.
9. wireless charging position calibration method as claimed in claim 8 is it is characterised in that described reception antenna is circular sky
Line, described transmitting antenna is circular antenna, and described generation based on described distance, primary importance information and second position information is included
The step of the information of the moving direction of described charging equipment and displacement includes：
Obtain the first radius of reception antenna and the second radius of described transmitting antenna；
Based on described first radius, the second radius, the displacement apart from the described charging equipment of calculating；
Determine the moving direction of described charging equipment based on described primary importance information and second position information；
Generate and include the moving direction of described charging equipment and the information of displacement.
10. the wireless charging position calibration method as described in any one of claim 6 to 9 is it is characterised in that as described in described display
After the step of information, described wireless charging position calibration method also includes：
Described information is sent to described charging equipment, so that described charging equipment is shown based on described information
Described information.
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| CN201610934141.XA CN106451631A (en) | 2016-10-31 | 2016-10-31 | Method and device for calibrating wireless charging position |
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| CN109149784A (en) * | 2018-09-03 | 2019-01-04 | Oppo广东移动通信有限公司 | Wireless charger, electronic equipment and wireless charging system |
| CN109217439A (en) * | 2018-11-16 | 2019-01-15 | 京东方科技集团股份有限公司 | Wireless charging device and charging system |
| CN109617252A (en) * | 2019-01-02 | 2019-04-12 | 京东方科技集团股份有限公司 | Wireless charging device, equipment, system and method |
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