WO2018076594A1 - 移动终端的背壳、无线充电的定位方法和装置 - Google Patents

移动终端的背壳、无线充电的定位方法和装置 Download PDF

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Publication number
WO2018076594A1
WO2018076594A1 PCT/CN2017/076583 CN2017076583W WO2018076594A1 WO 2018076594 A1 WO2018076594 A1 WO 2018076594A1 CN 2017076583 W CN2017076583 W CN 2017076583W WO 2018076594 A1 WO2018076594 A1 WO 2018076594A1
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Prior art keywords
positioning
mobile terminal
voltage
coil
voltage value
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PCT/CN2017/076583
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English (en)
French (fr)
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庞鹏
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中兴通讯股份有限公司
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Publication of WO2018076594A1 publication Critical patent/WO2018076594A1/zh

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    • H02J7/025—
    • 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
    • H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
    • 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
    • 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

Definitions

  • This document relates to, but is not limited to, the field of communications, and in particular, to a back shell of a mobile terminal, a method and apparatus for positioning wireless charging.
  • Qi Wireless Power Consortium
  • WPC Wireless Power Consortium
  • the basic principle adopted by Qi is the electromagnetic induction of the transformer circuit, in which the transmitter and receiver coils are coupled in a very close manner, thereby realizing the transfer of power.
  • the transmitter operates at low operating voltages, depending on the type of coil. Due to the higher efficiency of the WPC system, low radiation emissions, and lowest cost of implementation, many mainstream mobile phone manufacturers currently adopt the WPC wireless charging system.
  • Each wireless charging system has its own shortcomings.
  • the disadvantage of WPC is that the center of the receiving coil on the mobile terminal must be aligned with the center of the transmitting end coil to maximize the charging efficiency. When the center displacement increases, the charging efficiency also decreases. When it is larger than 5 mm, the charging efficiency is reduced in a cliff type, and even charging is stopped; in addition, the WPC cannot perform one-to-many charging. If you want to improve the charging efficiency of WPC, you must increase the charging current and place the transmitting end and receiving end accurately.
  • a wireless charging positioning method including: setting a transmitting circuit, a transmitting coil, and a positioning magnet in a charging base; the positioning magnet is fixed on a sub-board equipped with a transmitting coil; wirelessly is performed on the mobile terminal
  • the mobile terminal does not need to be displaced, but only needs to place the mobile terminal arbitrarily on the charging base of the wireless charging device, that is, positioning by positioning the magnet.
  • the method increases the cost of the charging circuit by placing the transmitting circuit on the movable station; and adding the positioning magnet to the mobile phone and the charging station requires additional expenditure; if the distance between the transmitting end and the receiving end does not detect the current, Will affect the positioning and affect the user experience.
  • the present disclosure provides a back shell of a mobile terminal, a positioning method of the wireless charging, and a positioning device, which can reduce the positioning of the mobile terminal and improve the user experience.
  • the present disclosure provides a back shell of a mobile terminal, comprising: a housing, two or more positioning coils disposed at predetermined positions of the housing; wherein the predetermined position includes: setting a position other than a charging coil of the mobile terminal .
  • the number of winding turns of each positioning coil is different.
  • the winding of the positioning coil is an enameled wire.
  • all of the positioning coils are obtained by winding the same enameled wire; or,
  • Each positioning coil is obtained by winding different enameled wires; or,
  • a predetermined number of positioning coils are obtained by winding the same enameled wire.
  • the present disclosure further provides a method for positioning a wireless charging, comprising: acquiring a voltage value by two or more positioning coils preset in a case where the charging base is energized;
  • the preset voltage data includes: a voltage range of each positioning coil when subjected to electromagnetic induction, And the position of each positioning coil;
  • the prompt information of the mobile terminal is displayed according to the determined location.
  • the positioning method further includes:
  • a positioning coil that generates a voltage is determined from a predetermined one of the predetermined positioning coils corresponding to the predetermined enameled wire.
  • matching the voltage value with preset voltage data to determine a voltage range in which the voltage value is located including:
  • the voltage range in which the voltage value of the voltage generated by the positioning coil is located in the voltage data is found.
  • the prompt information of the mobile terminal is displayed according to the determined location, including:
  • the distribution map includes: a distribution position of each positioning coil, and a position of a positioning coil that generates the voltage value; or, according to the position, a direction arrow is presented on a screen of the mobile terminal, so that the user The directional arrow moves the mobile terminal.
  • the present disclosure further provides a wireless charging positioning apparatus, including: an acquiring module configured to acquire a voltage value by using two or more positioning coils that are preset when the charging base is powered;
  • the matching module is configured to match the voltage value with preset voltage data to determine a voltage range in which the voltage value is located, wherein the preset voltage data comprises: each positioning coil is subjected to electromagnetic induction The voltage range at which it is located, and the position at which each positioning coil is located;
  • the position determining module is configured to determine a position of the positioning coil that generates the voltage value according to the voltage range;
  • the prompting module is configured to display the prompt information of the mobile terminal according to the determined location.
  • the positioning device further includes:
  • the determining module is configured to determine whether each of the positioning coils is wound by a different enameled wire
  • the loop determination module is configured to determine a positioning coil that generates a voltage from a predetermined one of the predetermined positioning coils corresponding to the predetermined enameled wire, in the case where each of the positioning coils is obtained by winding a different enameled wire.
  • the matching module is configured to be
  • the voltage range in which the voltage value of the voltage generated by the positioning coil is located in the voltage data is found.
  • the prompt module is configured to:
  • the distribution map includes: a distribution position of each positioning coil, and generating the electricity The position of the positioning coil of the pressure value; or a directional arrow is presented on the screen of the mobile terminal according to the position, so that the user moves the mobile terminal according to the directional arrow.
  • the present disclosure further provides a mobile terminal, comprising: the back shell of the mobile terminal described above, and/or the above-mentioned wireless charging positioning device.
  • the technical solution provided by the present disclosure includes: a housing, two or two positioning coils disposed at predetermined positions of the housing; wherein the predetermined position includes: the mobile terminal is disposed at a position other than the charging coil.
  • the present disclosure realizes the positioning of the mobile terminal and improves the user experience.
  • the positioning coil corresponding to the position of the charging base is based on the electromagnetic induction.
  • the voltage is generated. Therefore, determining which positioning coil generates the voltage, it is possible to determine how to adjust the charging position of the mobile terminal according to the position of the positioning coil that generates the voltage, and setting the back shell of the plurality of positioning coils only on the mobile terminal.
  • the low improvement achieves accurate positioning and solves the following problems in the prior art: by increasing the charging base of the magnet to position the mobile terminal, the cost of the charging base motor circuit and the like are increased, and at the same time, At the same time, the positioning magnet is added to the mobile terminal and the charging stand, and the extra cost is large.
  • FIG. 1 is a schematic diagram showing the composition of a back shell of a mobile terminal in a first embodiment of the present invention
  • FIG. 2 is a flowchart of a method for positioning a wireless charging in a second embodiment of the present invention
  • FIG. 3 is a schematic structural diagram of a wireless charging positioning device in a third embodiment of the present invention.
  • FIG. 4 is a schematic diagram showing an optional structure of a wireless charging positioning device in a third embodiment of the present invention.
  • Figure 5 is a schematic view showing a closed loop forming positioning coil in a fifth embodiment of the present invention.
  • FIG. 6 is a schematic view showing a plurality of closed loops forming positioning coils in a fifth embodiment of the present invention.
  • Figure 7 is a schematic diagram of a prompting interface in a fifth embodiment of the present invention.
  • the present disclosure provides a back shell of a mobile terminal, a wireless charging positioning method, and a positioning device.
  • the first embodiment of the present invention provides a back cover of a mobile terminal, which is disposed on the back of the mobile phone and is disposed to cover the internal structure of the mobile phone.
  • the predetermined position includes: setting a position other than the charging coil of the mobile terminal.
  • the positioning coil corresponding to the position of the charging base is based on the electromagnetic induction.
  • the voltage is generated. Therefore, determining which positioning coil generates the voltage, it is possible to determine how to adjust the charging position of the mobile terminal according to the position of the positioning coil that generates the voltage, and setting the back shell of the plurality of positioning coils only on the mobile terminal. Low improvements have achieved precise positioning.
  • the winding of the positioning coil is made of an enameled wire, which is different from the wire of the charging coil, and the enamel wire of the charging coil further comprises an oxynitride shielding material.
  • the enameled wire used for the positioning coil is not required.
  • all the positioning coils can be wound by an enameled wire, or each positioning coil is wound by a different enameled wire than any other positioning coil that has been set, or a predetermined number of positioning
  • the coil is wound by an enameled wire, for example, every three positioning coils are wound with an enameled wire.
  • the operation of the subsequent positioning process can be determined by winding one or more enameled wires.
  • the number of winding turns of each positioning coil may be different from the number of winding turns of any other positioning coil that has been set, so that the generated voltage value will be different.
  • the position of the different positioning coils can be distinguished according to different voltages. If each positioning coil is wound by a different enameled wire than any other positioning coil that has been set, or a predetermined number of positioning coils are wound by an enameled wire, then, when positioning, it is possible to Judging which closed circuit of the enameled wire is working, it can be Look for the positioning coil that generates the voltage in the closed loop.
  • a second embodiment of the present invention provides a method for locating a wireless charging process, as shown in FIG. 2, including:
  • Step (S) 202 in the case that the charging base is energized, the voltage value is obtained by two or more positioning coils that are preset;
  • the preset voltage data includes: a voltage range of each positioning coil when subjected to electromagnetic induction, and each positioning The position where the coil is located;
  • the implementation information of the present invention is used to prompt the position corresponding to the charging coil of the mobile terminal to be matched with the charging base.
  • the voltage is obtained by using a plurality of positioning coils of a preset value. Since the charging base is energized, according to the principle of electromagnetic induction, the positioning coil corresponding to the position of the charging base transmitter generates a voltage; after the voltage is obtained, the voltage can be obtained.
  • the voltage value in the preset voltage value database is matched to determine the position of the positioning coil that generates the voltage according to the matching result, thereby prompting the user to move the mobile terminal for precise positioning, thereby implementing wireless charging.
  • a plurality of positioning coils are indeterminate by one or several enameled wires, it is necessary to determine whether the plurality of positioning coils are different before obtaining voltage values through a plurality of pre-set positioning coils.
  • the enameled wire is wound. If a plurality of positioning coils are wound by different enameled wires, a positioning coil for generating a voltage is determined from a predetermined positioning coil corresponding to the predetermined enameled wire; that is, the positioning coil is wound by a different enameled wire.
  • a closed loop for generating a voltage is determined from a predetermined closed loop corresponding to the predetermined strip of enameled wire, and the process determines which closed loop is out of operation, and determines which positioning coil is from the closed loop. The voltage produced. If it is wound by an enameled wire, the voltage value is directly obtained.
  • displaying the prompt information of the mobile terminal according to the determined position including: displaying the prompt information in various manners, for example, presenting a distribution map on the screen of the mobile terminal according to the location, so that the user according to the distribution map Moving the mobile terminal, wherein the distribution map includes: a distribution position of each positioning coil, and a position of a positioning coil that currently generates a voltage value; or, a direction arrow is presented on a screen of the mobile terminal according to the position, so that the user moves according to the direction arrow Mobile terminal.
  • the present disclosure also provides a computer storage medium having stored therein computer executable instructions for performing a wireless positioning method.
  • the present disclosure also provides a wireless charging positioning device, including: a memory and a processor; wherein
  • a processor is configured to execute program instructions in the memory
  • the voltage value is obtained by two or more positioning coils that are preset;
  • the preset voltage data includes: a voltage range of each positioning coil when subjected to electromagnetic induction, and each positioning coil Location
  • the prompt information of the mobile terminal is displayed according to the determined position; the implementation information of the present invention is used for prompting to adjust the position corresponding to the charging coil of the mobile terminal to match the charging base.
  • a third embodiment of the present invention provides a wireless charging positioning device, as shown in FIG. 3, including:
  • the acquisition module 10 is configured to pass two presets or in the case where the charging base is powered Two or more positioning coils obtain voltage values;
  • the matching module 20 is coupled to the acquisition module 10 and configured to match the voltage value with preset voltage data to determine a voltage range in which the voltage value is located, wherein the preset voltage data includes: The range of voltages at which the positioning coils are subjected to electromagnetic induction, and the position at which each positioning coil is located;
  • the position determining module 30 is coupled to the matching module 20 and configured to determine a position of the positioning coil that generates the voltage value according to the voltage range;
  • the prompting module 40 is coupled to the location determining module 30 and configured to display the prompt information of the mobile terminal according to the determined location.
  • FIG. 4 is a schematic view showing an optional structure of the positioning device, which may further include: a determining module 50 configured to determine whether each positioning coil is wound by a different enameled wire; the loop determining module 60, and the determining module 50
  • the acquisition module 10 is coupled, and is arranged to determine a positioning coil that generates a voltage from a predetermined one of the predetermined positioning coils corresponding to the predetermined enameled wire, in the case where each of the positioning coils is obtained by winding a different enameled wire.
  • the matching module 20 is configured to be
  • the voltage range in which the voltage value of the voltage generated by the positioning coil is located in the voltage data is found.
  • the prompting module 40 is configured to present a distribution map on the screen of the mobile terminal according to the location, so that the user moves the mobile terminal according to the distribution map, wherein the distribution map includes: a distribution position of each positioning coil, and a voltage value generated. Positioning the coil; or, according to the position, presenting a directional arrow on the screen of the mobile terminal to enable the user to move the mobile terminal according to the direction arrow.
  • the fourth embodiment of the present invention further provides a mobile terminal, which comprises the back shell of the mobile terminal in the first embodiment and the wireless charging positioning device in the third embodiment.
  • a mobile terminal which comprises the back shell of the mobile terminal in the first embodiment and the wireless charging positioning device in the third embodiment.
  • a fifth embodiment of the present invention provides a mobile terminal and a method for positioning a charging process of the mobile terminal.
  • the positioning coil is distributed around the bottom of the mobile terminal, and the positioning coil is wound by an enameled wire into a size coil, and does not include any ferrite shielding.
  • Material, start positioning in the initial stage of wireless charging Work. Determine the voltage according to the following formula:
  • E n ⁇ / ⁇ t, where ⁇ is the amount of change in magnetic flux, ⁇ t is the amount of change in time, ⁇ divided by ⁇ t is the rate of change of magnetic flux, n is the number of turns of the coil, and E is the voltage of the electromotive force.
  • the relative position of the charging receiving end and the charging transmitting end of the mobile phone is determined according to the magnitude of the voltage.
  • the relative position of the positioning coil of the mobile terminal can be displayed through the screen of the mobile phone, and the screen prompts the user to move the mobile terminal to the most suitable direction.
  • the loop is judged multiple times to reach the optimal charging position. Since the transmitting end and the receiving end are generally impossible to achieve alignment at one time, it is possible to cycle three times or so. Too many times, users will also get bored and the user experience is not good. In practice, for voltage values, which need to be converted from analog signals to digital signals, they can be matched.
  • the WPC charging adopts the principle of electromagnetic induction, and the frequency of the change of the magnetic flux at the transmitting end (charging base) is fixed, and the receiving end generates a fixed electromotive force.
  • the effective distance of electromagnetic induction wireless charging is 5 mm, and the charging efficiency will decrease significantly as the distance increases.
  • the positioning coil is also made according to the principle of electromagnetic induction. A layer of ferrite shielding material is required outside the charging coil, but the positioning coil is wound into a size coil by an enameled wire, does not contain any ferrite shielding material, and the charging coil is regarded as two completely independent circuits.
  • the rear cover of the mobile terminal is covered with a plurality of positioning coils, and all of the positioning coils form a closed loop through an enameled wire, and different positioning coils generate different voltage values in the magnetic field.
  • the distribution of the positioning coil is shown in Figure 5. All the coils are concentric circles that are coiled by an enameled wire. In order to show the number of turns of the coil, the figure is not drawn as a concentric circle. Taking FIG. 5 as an example, the first row of the first row is a circle of positioning coils, the second row of rows is a two-position positioning coil, and so on, and the third row and the third column are eight-circle positioning coils.
  • the present disclosure also provides an alternative positioning method in which each coil pulls a closed loop. This positioning method is more accurate and can correctly determine the location of the mobile phone.
  • the voltage generated by the positioning coil needs to be converted into a digital value by the analog-to-digital conversion chip.
  • a 4-bit digital signal is output through an analog-to-digital conversion circuit (ADC) to determine 9 states, wherein 0000 is in the uncharged state, and the upper left corner of the mobile phone is placed in the charging coil.
  • ADC analog-to-digital conversion circuit
  • each channel outputs 2 digits of digital signals, there may be multiple outputs in this positioning mode. According to the software algorithm, more accurate position information can be determined.
  • the mobile phone screen does not display the content related to charging without charging.
  • the system will start running in the background. If the phone is in the right position, start charging immediately. If the phone is not in the correct position, start to determine the phone location.
  • the phone screen will remind the user to move the phone to the upper left. At this point, the second judgment is made. If the phone has been placed correctly, the screen will not be reminded. If the positioning coil signal can still be detected, the user will continue to be reminded to move the mobile phone. Usually, it is judged three times to get a more accurate position of the mobile phone. If the number of judgments is too many, the user will get bored.
  • the display interface is shown in Figure 7.
  • the present disclosure has lower cost and more accurate positioning.
  • each module/unit in the foregoing embodiment may be implemented in the form of hardware, for example, by implementing an integrated circuit to implement its corresponding function, or may be implemented in the form of a software function module, for example, being executed by a processor and stored in a memory. Programs/instructions to implement their respective functions.
  • the invention is not limited to any specific form of combination of hardware and software.
  • the above technical solution improves the positioning and positioning of the mobile terminal during charging, and improves the user experience.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Telephone Function (AREA)

Abstract

一种移动终端的背壳、无线充电的定位方法和定位装置，其中，背壳包括：壳体，壳体的预定位置设置的两个或两个以上定位线圈；其中，预定位置包括：移动终端设置充电线圈之外的位置。上述技术方案实现了移动终端充电时的定位，提升了用户的使用体验。

Description

移动终端的背壳、无线充电的定位方法和装置 技术领域
本文涉及但不限于通信领域，尤其涉及一种移动终端的背壳、无线充电的定位方法和装置。
背景技术
随着智能机的普及以及科技的进步，越来越多的厂商推出了自己的无线充电手机。无线充电联盟(WPC，Wireless Power Consortium)在2008年宣布的无线充电标准被称为“气(Qi)”，也称为WPC，这是无线充电技术针对主流消费电子设备商业化的一大步。Qi采用的基础原理是变压器电路的电磁感应，其中，发射器和接收器线圈以非常接近的形式耦合，从而实现电力的转移。发射器在低工作电压下工作，视线圈的类型而定。由于WPC制式具有更高的效率以及辐射排放量低、实现成本最低等优点，所以目前很多主流手机厂商采用了WPC无线充电制式。
每种无线充电制式都有自身的缺点，WPC的缺点是移动终端上的接收线圈中心必须和发射端线圈中心对准才能使充电效率最大，当中心位移增大时充电效率也随之降低，当大于5毫米时，充电效率断崖式下降，甚至停止充电；另外，WPC不能进行一对多充电。如果想提高WPC充电效率，必然要提高充电电流，并将发射端和接收端准确放置。
为了解决上述问题，一些厂商提出了无线充电定位的方式；包括：在充电底座中设置发送电路、发送线圈、定位磁铁，定位磁铁被固定于装有发送线圈的子板上；对移动终端进行无线充电时，移动终端不需要移位，而仅需要将移动终端任意放置于无线充电装置的充电底座上，即通过定位磁铁实现定位。该方法将发送电路放置在可移动台上，增加了充电电路的成本；而要在手机和充电台上同时增加定位磁铁，也需要额外的开支；如果发射端和接收端的距离探测不到电流，将会影响定定位，影响用户体验。
发明概述
以下是对本文详细描述的主题的概述。本概述并非是为了限制权利要求 的保护范围。
本公开提供一种移动终端的背壳、无线充电的定位方法和定位装置，能够降低实现移动终端的定位，提升用户的使用体验。
本公开提供一种移动终端的背壳，包括：壳体，所述壳体预定位置设置的两个或两个以上定位线圈；其中，所述预定位置包括：设置移动终端充电线圈之外的位置。
可选的，每一个定位线圈的缠绕匝数均不相同。
可选的，所述定位线圈的绕线采用漆包线。
可选的，所有的所有定位线圈采用同一条漆包线缠绕获得；或者，
每一个定位线圈都是采用不同的漆包线缠绕获得；或者，
预定个数的定位线圈采用同一条漆包线缠绕获得。
另一方面，本公开还提供一种无线充电的定位方法，包括：在充电底座通电的情况下，通过预设置的两个或两个以上定位线圈获取电压值；
将所述电压值与预设的电压数据进行匹配，以确定所述电压值所处的电压范围，其中，所述预设的电压数据包括：每个定位线圈在受到电磁感应时的电压范围、以及每个定位线圈所处的位置；
根据所述电压范围确定产生所述电压值的定位线圈的位置；
根据确定的所述位置显示挪动移动终端的提示信息。
可选的，所述获取电压值之前，所述定位方法还包括：
判断所述每一个定位线圈是否是通过不同的漆包线缠绕而成；
在每一个所述定位线圈是通过不同的漆包线缠绕获得的情况下，从预定条漆包线对应的预定个定位线圈中确定产生电压的定位线圈。
可选的，将所述电压值与预设的电压数据进行匹配，以确定所述电压值所处的电压范围，包括：
在预设电压值数据库的电压数据中，查找定位线圈产生的电压的所述电压值在电压数据中所处的电压范围。
可选的，根据确定的所述位置显示挪动移动终端的提示信息，包括：
根据确定的所述位置在所述移动终端的屏幕上呈现分布图，以使用户根据所述分布图挪动所述移动终端；
其中，所述分布图包括：每一个定位线圈的分布位置、以及产生所述电压值的定位线圈的位置；或者，根据所述位置在所述移动终端的屏幕上呈现方向箭头，以使用户根据所述方向箭头挪动所述移动终端。
另一方面，本公开还提供一种无线充电的定位装置，包括：获取模块设置为，在充电底座通电的情况下，通过预设置的两个或两个以上定位线圈获取电压值；
匹配模块设置为，将所述电压值与预设的电压数据进行匹配，以确定所述电压值所处的电压范围，其中，所述预设的电压数据包括：每个定位线圈在受到电磁感应时所处的电压范围、以及每个定位线圈所处的位置；
位置确定模块设置为，根据所述电压范围确定产生所述电压值的定位线圈的位置；
提示模块设置为，根据确定的所述位置显示挪动移动终端的提示信息。
可选的，所述定位装置还包括：
判断模块设置为，判断所述每一个定位线圈是否是通过不同的漆包线缠绕而成；
回路确定模块设置为，在所述每一个定位线圈是通过不同的漆包线缠绕获得的情况下，从预定条漆包线对应的预定个定位线圈中确定产生电压的定位线圈。
可选的，所述匹配模块是设置为；
在预设电压值数据库的电压数据中，查找定位线圈产生的电压的所述电压值在电压数据中所处的电压范围。
可选的，所述提示模块是配置为：
根据确定的所述位置在所述移动终端的屏幕上呈现分布图，以使用户根据所述分布图挪动所述移动终端；
其中，所述分布图包括：每一个定位线圈的分布位置、以及产生所述电 压值的定位线圈的位置；或者，根据所述位置在所述移动终端的屏幕上呈现方向箭头，以使用户根据所述方向箭头挪动所述移动终端。
另一方面，本公开还提供一种移动终端，包括：上述的移动终端的背壳，和/或，上述的无线充电的定位装置。
与相关技术相比，本公开提供的技术方案，包括：壳体，壳体的预定位置设置的两个或两个定位线圈；其中，预定位置包括：移动终端设置充电线圈之外的位置。本公开实现了移动终端的定位，提升了用户的使用体验。
本公开由于在移动终端充电线圈之外的位置设置了多个定位线圈，在充电底座通电后，如果充电线圈没有对准充电底座的发射器，则充电底座对应位置的定位线圈就会根据电磁感应而产生电压，因此，确定哪个定位线圈生成电压，就可以根据生成电压的定位线圈的位置确定如何调整移动终端的充电位置，设置了多个定位线圈的背壳只在移动终端上进行了成本较低的改进，却实现了精准的定位，解决了现有技术的如下问题：通过增加了磁铁的充电底座对移动终端进行定位的方式，会增加充电底座电机电路等的成本，同时，还要在移动终端和充电台上同时增加定位磁铁，额外开支较大。
在阅读并理解了附图和详细描述后，可以明白其他方面。
附图概述
图1是本发明第一实施例中移动终端的背壳的组成示意图；
图2是本发明第二实施例中无线充电的定位方法的流程图；
图3是本发明第三实施例中无线充电的定位装置的结构示意图；
图4是本发明第三实施例中无线充电的定位装置的可选结构示意图；
图5是本发明第五实施例中一个闭合回路组成定位线圈的示意图；
图6是本发明第五实施例中多个闭合回路组成定位线圈的示意图；
图7是本发明第五实施例中提示界面示意图。
详述
下文中将结合附图对本申请的实施例进行详细说明。需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互任意组合。
相关技术中，通过增加了磁铁的充电底座对移动终端进行定位的方式，会增加充电底座电机电路等的成本，同时，还要在移动终端和充电台上同时增加定位磁铁，额外开支较大；本公开提供了一种移动终端的背壳、无线充电的定位方法和定位装置，以下结合附图以及实施例，对本发明进行进一步详细说明。应当理解，此处所描述的实施例仅仅用以解释本发明，并不限定本发明。
本发明第一实施例提供一种移动终端的背壳，该背壳设置在手机的背部，设置为覆盖住手机的内部结构，其结构示意如图1所示，包括：
壳体，壳体的预定位置设置的两个或两个以上定位线圈；其中，预定位置包括：设置移动终端充电线圈之外的位置。
本公开由于在移动终端充电线圈之外的位置设置了多个定位线圈，在充电底座通电后，如果充电线圈没有对准充电底座的发射器，则充电底座对应位置的定位线圈就会根据电磁感应而产生电压，因此，确定哪个定位线圈生成电压，就可以根据生成电压的定位线圈的位置确定如何调整移动终端的充电位置，设置了多个定位线圈的背壳只在移动终端上进行了成本较低的改进，却实现了精准的定位。
实施的过程中，定位线圈的绕线采用漆包线，该漆包线与充电线圈的电线不同，充电线圈的漆包线外还包含一层氧铁体屏蔽材料，然而，定位线圈采用的漆包线不需要。设置时，所有的定位线圈均可以是采用一条漆包线缠绕成的，或者，每个定位线圈都是采用与已设置的其它任一个定位线圈不同的漆包线缠绕而成的，或者，预定个数的定位线圈是采用一条漆包线缠绕成的，例如，每三个定位线圈采用一条漆包线缠绕。通过一条或多条漆包线缠绕的方式，可以决定后续定位过程的操作。
如果采用一条漆包线缠绕，则为了区分位置，可选将每个定位线圈的缠绕匝数均与已设置的其它任一个定位线圈的缠绕匝数不相同，这样，产生的电压值就会不同，就可以根据不同的电压来区分不同定位线圈的位置。如果每个定位线圈都是采用与已设置的其它任一个定位线圈不同的漆包线缠绕而成的，或者，预定个数的定位线圈是采用一条漆包线缠绕成的，那么，在定位时，就可以先判断哪条漆包线对应的闭合回路在工作，也就就可以在该 闭合回路中寻找产生电压的定位线圈。
本发明第二实施例提供了一种无线充电过程的定位方法，如图2所示，包括：
步骤(S)202，在充电底座通电的情况下，通过预设置的两个或两个以上定位线圈获取电压值；
S204，将电压值与预设的电压数据进行匹配，以确定电压值所处的电压范围；其中，预设的电压数据包括：每个定位线圈在受到电磁感应时的电压范围、以及每个定位线圈所处的位置；
S206，根据电压范围确定产生电压值的定位线圈的位置；
S208，根据确定的位置显示挪动移动终端的提示信息；本发明实施显示信息用于提示用于将移动终端的充电线圈对应的位置调整至与充电底座相匹配。
本实施例通过预设值的多个定位线圈来获取电压，由于充电底座通电，则根据电磁感应原理，充电底座发射器位置对应的定位线圈就会产生电压；在获取电压后，就可以将其与预设电压值数据库中的电压值进行匹配，以根据匹配结果确定产生电压的定位线圈的位置，进而提示用户来挪动移动终端，以便精准定位，进而实现无线充电。
实施过程中，由于多个定位线圈不确定是由一条或几条漆包线缠绕而成的，因此，在通过预设置的多个定位线圈获取电压值之前，还需要判断多个定位线圈是否是通过不同的漆包线缠绕而成，如果多个定位线圈是通过不同的漆包线缠绕而成的情况下，从预定条漆包线对应的预定个定位线圈中确定产生电压的定位线圈；即定位线圈为通过不同的漆包线缠绕的闭合回路时，那么就从预定条漆包线对应的预定个闭合回路中确定产生电压的闭合回路，该过程即判断哪个闭合回路是出于工作状态的，就从该闭合回路中确定是哪个定位线圈产生的电压。如果是通过一条漆包线缠绕而成的，那么就直接获取电压值。
如果多个定位线圈是通过预定条漆包线缠绕而成的，将电压值与预设电压值数据库中的电压值进行匹配时，在预设电压值数据库的电压数据中，查 找定位线圈产生的电压的所述电压值在电压数据中所处的电压范围；可以包括。需要在预设电压值数据库中查找产生电压的闭合回路对应的电压数据，再在电压数据中查找电压值所处的电压范围。
在确定定位线圈的位置后，根据确定位置显示挪动移动终端的提示信息，包括：提示信息的表现方式有多种，例如，根据位置在移动终端的屏幕上呈现分布图，以使用户根据分布图挪动移动终端，其中，分布图包括：每一个定位线圈的分布位置、以及当前产生电压值的定位线圈的位置；或者，根据位置在移动终端的屏幕上呈现方向箭头，以使用户根据方向箭头挪动移动终端。
本公开还提供一种计算机存储介质，计算机存储介质中存储有计算机可执行指令，计算机可执行指令用于执行上述无线充电的定位方法。
本公开还提供一种无线充电的定位装置，包括：存储器和处理器；其中，
处理器被配置为执行所述存储器中的程序指令；
程序指令在处理器读取执行以下操作：
在充电底座通电的情况下，通过预设置的两个或两个以上定位线圈获取电压值；
将电压值与预设的电压数据进行匹配，以确定电压值所处的电压范围；其中，预设的电压数据包括：每个定位线圈在受到电磁感应时的电压范围、以及每个定位线圈所处的位置；
根据电压范围确定产生电压值的定位线圈的位置；
根据确定的位置显示挪动移动终端的提示信息；本发明实施显示信息用于提示用于将移动终端的充电线圈对应的位置调整至与充电底座相匹配。
本发明第三实施例提供一种无线充电的定位装置，如图3所示，包括：
获取模块10设置为，在充电底座通电的情况下，通过预设置的两个或 两个以上定位线圈获取电压值；
匹配模块20，与获取模块10耦合，设置为将所述电压值与预设的电压数据进行匹配，以确定所述电压值所处的电压范围，其中，所述预设的电压数据包括：每个定位线圈在受到电磁感应时所处的电压范围、以及每个定位线圈所处的位置；
位置确定模块30，与匹配模块20耦合，设置为根据电压范围确定产生电压值的定位线圈的位置；
提示模块40，与位置确定模块30耦合，设置为根据确定的位置显示挪动移动终端的提示信息。
图4示出了上述定位装置的可选结构示意图，其还可以包括：判断模块50，设置为判断每一个定位线圈是否是通过不同的漆包线缠绕而成；回路确定模块60，与判断模块50和获取模块10耦合，设置为在每一个定位线圈是通过不同的漆包线缠绕获得的情况下，从预定条漆包线对应的预定个定位线圈中确定产生电压的定位线圈。
上述匹配模块20是设置为；
在预设电压值数据库的电压数据中，查找定位线圈产生的电压的所述电压值在电压数据中所处的电压范围。
实施时，提示模块40是配置为根据位置在移动终端的屏幕上呈现分布图，以使用户根据分布图挪动移动终端，其中，分布图包括：每一个定位线圈的分布位置、以及产生电压值的定位线圈的位置；或者，根据位置在移动终端的屏幕上呈现方向箭头，以使用户根据方向箭头挪动移动终端。
本发明第四实施例还提供一种移动终端，其结构上包括上述第一实施例中的移动终端的背壳和第三实施例中无线充电的定位装置。设置了上述背壳和定位装置后的移动终端，就可以轻松的校准充电线圈与充电底座相互匹配的位置，以高效率的完成无线充电过程。
本发明第五实施例提供了一种移动终端及为该移动终端充电过程进行定位的方法，该移动终端底壳四周分布定位线圈，定位线圈由漆包线绕成尺寸线圈，不包含任何铁氧体屏蔽材料，在无线充电初始阶段启动完成定位工 作。根据如下公式确定电压：
E＝nΔΦ/Δt，其中，ΔΦ为磁通量变化量，Δt为时间变化量，ΔΦ除以Δt就是磁通量变化率，n为线圈匝数，E为电动势即电压。
不同的定位线圈有不同的匝数，所以不同定位线圈产生不同的电压。根据电压大小判断手机充电接收端和充电发射端的相对位置。
在提示用户时，可以通过手机屏幕显示移动终端定位线圈的相对位置，屏幕同时提示用户将移动终端向最适合方向移动。根据移动后的位置继续循环判断多次，达到最优充电位置。因为发射端和接收端一般情况下不可能一次就实现对准，因此，可以循环判断三次左右即可。次数过多，用户也会产生厌倦情绪，用户体验不佳。在实施时，对于电压值，其是需要由模拟信号转换为数字信号才能够被匹配的，因此，当产生模拟电压值时，通过模数转换方式将模拟信号转换为数字信号，然后再将数字电压值与预设电压值数据库中的电压值进行匹配，其中，预设电压值数据库可以以表格的形式存在。
实施例时，WPC充电采用了电磁感应原理，发射端(充电底座)的磁通量变化频率固定，此时接收端就会产生固定的电动势。电磁感应式无线充电的有效距离为5毫米，随着距离的增加，充电效率会明显下降。定位线圈也是根据电磁感应原理制成。充电线圈外需要包一层铁氧屏蔽材料，但是定位线圈由漆包线绕成尺寸线圈，不包含任何铁氧体屏蔽材料，和充电线圈看作两个完全独立的电路。
移动终端的后盖上覆盖了多个定位线圈，所有的定位线圈通过一条漆包线组成一个闭合的回路，不同的定位线圈在磁场中产生的不同电压值。定位线圈分布情况如图5所示。所有的线圈都是由一条漆包线盘绕成的同心圆，为了表示线圈匝数的多少，图没有画成同心圆。以图5为例，第一行第一列为一圈定位线圈，一行第二列为两圈定位线圈，以此类推，第三行第三列为八圈定位线圈。但在实际的应用过程中，不可能只采用很少的线圈来产生电压，不同的行列可以采用不同的多线圈，使电压大小明显区分开来。同时，也可以摆放更密的定位线圈，这样会更加准确的判定手机和充电底座的相对位置。
实现时，如果一个闭合回路太长，我们可以通过多条漆包线设置多路闭 合回路。根据判断哪个回路工作来判断手机所处的位置，其定位效果更加准确。定位线圈分布如图6所示。按照每一行放置一个闭合回路，手机放置入充电环境中，定位线圈可以定位到行列，从而准确判断手机的相对位置，有的时候可能会有多路输出，这种情况下可以通过软件算法来实现位置的判断，定位会更加精确。
本公开还提供一种可选的定位方式，那就是每个线圈拉出一条闭合回路。这种定位方式定位更加精准，可以正确的判断出手机的位置。
在获取电压值时，定位线圈产生的电压需要通过模数转化芯片可以转化为数字值。如果按照图5所示，在输出一个电压值后，通过模数转换电路(ADC)输出4位数字信号，判断9种状态，其中未充电状态下是0000，手机左上角放置在充电线圈中时输出0001，以此类推，手机右下角放置在充电线圈中时输出1000。随后，通过查找内置的电压位置对照表，就可以获得手机所处的位置。
如果按照图6所示，通过ADC转换电路后，每路输出2位数字信号，这种定位方式下可能会有多路输出，根据软件算法，可以判断出较为精确的位置信息。
实施时，当将应用上述能够准确定位的移动终端时，在不充电的情况下，手机屏幕不显示与充电相关的内容。当用户开始充电并启用本充电定位系统后，系统将在后台开始运行。如果手机位置恰好正确，立即开始充电，如果手机位置不正确，开始判断手机位置。
例如，将手机的左上角放置在充电座中心，那么手机屏幕会提醒用户将手机向左上方移动。此时进行第二次判断，如果手机已经放置正确，屏幕将不再提醒。如果还能探测到定位线圈信号，将继续提醒用户移动手机。通常判断三次就可以得到手机较为准确的位置，如果判断次数过多，用户会产生厌倦情绪。显示界面如图7所示。
本公开相比其他充电技术，成本更低，同时定位更加准确。
尽管为示例目的，已经公开了本发明的可选实施例，本领域的技术人员将意识到各种改进、增加和取代也是可能的，因此，本发明的范围应当不限 于上述实施例。
本领域普通技术人员可以理解上述方法中的全部或部分步骤可通过程序来指令相关硬件(例如处理器)完成，所述程序可以存储于计算机可读存储介质中，如只读存储器、磁盘或光盘等。可选地，上述实施例的全部或部分步骤也可以使用一个或多个集成电路来实现。相应地，上述实施例中的每个模块/单元可以采用硬件的形式实现，例如通过集成电路来实现其相应功能，也可以采用软件功能模块的形式实现，例如通过处理器执行存储于存储器中的程序/指令来实现其相应功能。本发明不限制于任何特定形式的硬件和软件的结合。
虽然本申请所揭露的实施方式如上，但所述的内容仅为便于理解本申请而采用的实施方式，并非用以限定本申请，如本发明实施方式中的具体的实现方法。任何本申请所属领域内的技术人员，在不脱离本申请所揭露的精神和范围的前提下，可以在实施的形式及细节上进行任何的修改与变化，但本申请的专利保护范围，仍须以所附的权利要求书所界定的范围为准。
工业实用性
上述技术方案提高了移动终端充电时的定位定位，提升了用户的使用体验。

Claims (13)

  1. 一种移动终端的背壳，包括：
    壳体，所述壳体的预定位置设置的两个或两个以上定位线圈；
    其中，所述预定位置包括：设置移动终端充电线圈之外的位置。
  2. 如权利要求1所述的移动终端的背壳，其中，每一个定位线圈的缠绕匝数均不相同。
  3. 如权利要求1或2所述的移动终端的背壳，其中，所述定位线圈的绕线采用漆包线。
  4. 如权利要求3所述的移动终端的背壳，其中，
    所有的所有定位线圈采用同一条漆包线缠绕获得；或者，
    每一个定位线圈都是采用不同的漆包线缠绕获得；或者，
    预定个数的定位线圈采用同一条漆包线缠绕获得。
  5. 一种无线充电的定位方法，包括：
    在充电底座通电的情况下，通过预设置的两个或两个以上定位线圈获取电压值；
    将所述电压值与预设的电压数据进行匹配，以确定所述电压值所处的电压范围，其中，所述预设的电压数据包括：每个定位线圈在受到电磁感应时的电压范围、以及每个定位线圈所处的位置；
    根据所述电压范围确定产生所述电压值的定位线圈的位置；
    根据确定的所述位置显示挪动移动终端的提示信息。
  6. 如权利要求5所述的定位方法，所述获取电压值之前，所述定位方法还包括：
    判断所述每一个定位线圈是否是通过不同的漆包线缠绕而成；
    在每一个所述定位线圈是通过不同的漆包线缠绕获得的情况下，从预定条漆包线对应的预定个定位线圈中确定产生电压的定位线圈。
  7. 如权利要求6所述的定位方法，其中，将所述电压值与预设的电压 数据进行匹配，以确定所述电压值所处的电压范围，包括：
    在预设电压值数据库的电压数据中，查找定位线圈产生的电压的所述电压值在电压数据中所处的电压范围。
  8. 如权利要求5至7中任一项所述的定位方法，其中，根据确定的所述位置显示挪动移动终端的提示信息，包括：
    根据确定的所述位置在所述移动终端的屏幕上呈现分布图，以使用户根据所述分布图挪动所述移动终端；
    其中，所述分布图包括：每一个定位线圈的分布位置、以及产生所述电压值的定位线圈的位置；或者，根据所述位置在所述移动终端的屏幕上呈现方向箭头，以使用户根据所述方向箭头挪动所述移动终端。
  9. 一种无线充电的定位装置，包括：
    获取模块设置为，在充电底座通电的情况下，通过预设置的两个或两个以上定位线圈获取电压值；
    匹配模块设置为，将所述电压值与预设的电压数据进行匹配，以确定所述电压值所处的电压范围，其中，所述预设的电压数据包括：每个定位线圈在受到电磁感应时所处的电压范围、以及每个定位线圈所处的位置；
    位置确定模块设置为，根据所述电压范围确定产生所述电压值的定位线圈的位置；
    提示模块设置为，根据确定的所述位置显示挪动移动终端的提示信息。
  10. 如权利要求9所述的定位装置，所述定位装置还包括：
    判断模块设置为，判断所述每一个定位线圈是否是通过不同的漆包线缠绕而成；
    回路确定模块设置为，在所述每一个定位线圈是通过不同的漆包线缠绕获得的情况下，从预定条漆包线对应的预定个定位线圈中确定产生电压的定位线圈。
  11. 如权利要求10所述的定位装置，其中，所述匹配模块是设置为；
    在预设电压值数据库的电压数据中，查找定位线圈产生的电压的所述电 压值在电压数据中所处的电压范围。
  12. 如权利要求9至11中任一项所述的定位装置，其中，所述提示模块是配置为：
    根据确定的所述位置在所述移动终端的屏幕上呈现分布图，以使用户根据所述分布图挪动所述移动终端；
    其中，所述分布图包括：每一个定位线圈的分布位置、以及产生所述电压值的定位线圈的位置；或者，根据所述位置在所述移动终端的屏幕上呈现方向箭头，以使用户根据所述方向箭头挪动所述移动终端。
  13. 一种移动终端，包括：权利要求1至4中任一项所述的移动终端的背壳，和/或，权利要求9至12中任一项所述的无线充电的定位装置。
PCT/CN2017/076583 2016-10-25 2017-03-14 移动终端的背壳、无线充电的定位方法和装置 WO2018076594A1 (zh)

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