WO2022213753A1 - 一种无线充电对位检测方法及电子设备 - Google Patents

一种无线充电对位检测方法及电子设备 Download PDF

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Publication number
WO2022213753A1
WO2022213753A1 PCT/CN2022/079158 CN2022079158W WO2022213753A1 WO 2022213753 A1 WO2022213753 A1 WO 2022213753A1 CN 2022079158 W CN2022079158 W CN 2022079158W WO 2022213753 A1 WO2022213753 A1 WO 2022213753A1
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WIPO (PCT)
Prior art keywords
charging
electronic device
wireless
wireless charger
picture
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PCT/CN2022/079158
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English (en)
French (fr)
Inventor
段伟亮
刘剑
朱辰
Original Assignee
荣耀终端有限公司
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Priority to EP22734466.0A priority Critical patent/EP4096060A4/en
Publication of WO2022213753A1 publication Critical patent/WO2022213753A1/zh

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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
    • 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
    • H02J50/005—Mechanical details of housing or structure aiming to accommodate the power transfer means, e.g. mechanical integration of coils, antennas or transducers into emitting or receiving devices
    • 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
    • H02J50/80—Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers

Definitions

  • the present application relates to the technical field of wireless charging, and in particular, to a wireless charging alignment detection method and electronic device.
  • Wireless charging is also known as inductive charging. Its main advantage is that it is convenient and not bound by wires. As long as the electronic device is placed on the charging base of the wireless charger, it can be charged automatically.
  • the wireless charging technology based on the Qi standard is often used.
  • the wireless charging technology based on the Qi standard requires the wireless charging receiving coil of the electronic device and the wireless charging transmitting coil of the wireless charger to be within a certain distance range. When the distance between them is too large, the charging rate will decrease or even cannot be charged.
  • the electronic device is placed on the charging base of the wireless charger for charging, only the icons of charging and the current power level of the electronic device are displayed on the display screen of the electronic device. The user cannot know whether the electronic device is well aligned with the wireless charging base. In this way, when the wireless charging base and the electronic device are not well aligned, the charging rate of the electronic device is low.
  • the purpose of the present application is to provide a wireless charging alignment detection method and electronic device, which can achieve the effect of good alignment between the wireless charging base and the electronic device, and improve the charging rate of the electronic device.
  • an embodiment of the present application discloses a wireless charging alignment detection method, which is applied to an electronic device.
  • the electronic device and a wireless charger can communicate and interact.
  • the wireless charging alignment detection method includes:
  • Receive device information data sent by the wireless charger includes, but is not limited to, the manufacturer number of the wireless charger, the model identifier of the wireless charger, and the like.
  • Types of wireless chargers may include horizontal wireless chargers and vertical wireless chargers. For each type of wireless charger, there is a corresponding model number.
  • the electronic device is divided into two types, the first type is that the picture of the charging base of the wireless charger of the model can be searched.
  • the second type is that the picture of the charging base of the wireless charger of this model cannot be searched.
  • the charging alignment picture displayed on the electronic device may include a real product picture of at least a part of the wireless charging base of the wireless charger, the picture being that the picture of the charging base of the wireless charger coincides with the screen of the electronic device part. The image is shown in what appears to be the style of the base of the charger that the user can see through the bezel of the electronic device.
  • the charging alignment picture displayed on the electronic device may be the wireless charging receiving coil of the electronic device itself.
  • a charging prompt interface is displayed, and the charging prompt interface includes a charging alignment picture, which is used to prompt or indicate whether the electronic device is placed in the best charging position of the wireless charger.
  • a charging alignment picture which is used to prompt or indicate whether the electronic device is placed in the best charging position of the wireless charger.
  • the wireless charging receiving coil of the electronic device and the wireless charging transmitting coil of the wireless charger are in an accurate alignment state, that is, the electronic device and the wireless charging coil are in an accurate alignment state.
  • the chargers are in exact alignment.
  • the picture of the wireless charging receiving coil of the electronic device shows the position of the charging coil of the electronic device in the electronic device. If most or all of the coils shown in the picture are located outside the wireless charging base, the user can determine that the position where the electronic device is placed is not a good charging position on the wireless charger.
  • the wireless charging reception of the electronic device The coil and the wireless charging transmitter coil of the wireless charger are in an inaccurate alignment state, that is, the electronic device and the wireless charger are in an inaccurate alignment state.
  • the user can move the electronic device to a better charging position on the charging base of the wireless charger according to the coil position shown in the picture, so that the wireless charging receiving coil of the electronic device and the wireless charging transmitting coil of the wireless charger are accurately aligned. , that is, the electronic device and the wireless charger are in a state of accurate alignment.
  • the wireless charging receiving coil of the electronic device and the wireless charging transmitting coil of the wireless charger are accurately aligned.
  • the state of accurate alignment may mean that the distance between the center position of the wireless charging receiving coil of the electronic device and the center position of the wireless charging transmitting coil of the wireless charger is relatively close.
  • a first threshold may be set to determine whether the electronic device and the wireless charger are accurately aligned.
  • the first threshold can be set by self-definition, and can be a single specific value. For example, the distance between the center positions of the wireless charger when the charging power of the wireless charger to charge the electronic device reaches 50% of the maximum charging power of the wireless charger is used as the first threshold.
  • the wireless charger uses the maximum charging power 50% of the distance between the center positions of the coils when charging the mobile phone is 10mm, then after the user places the mobile phone on the wireless charger, the distance between the center positions of the coils is less than or equal to 10mm, such as 5mm , the mobile phone and the wireless charger are in a state of accurate alignment; on the contrary, when the distance between the center of the coil after the user places the mobile phone on the wireless charger is greater than 10mm, such as 12mm, the mobile phone and the wireless charger are in a state of inaccurate alignment.
  • the specific value of the first threshold is not limited in this embodiment of the present application.
  • the technical solution provided by the present application is convenient to intuitively guide the user to place the electronic device on the wireless charger.
  • the preferred charging position of the charging base is such that the distance between the central position of the wireless charging receiving coil of the electronic device and the central position of the wireless charging transmitting coil of the wireless charger is smaller than the first threshold. In this way, when the charging base of the wireless charger and the electronic device are not accurately aligned, the user can be prompted to adjust the position of the electronic device on the wireless charging base of the wireless charger to achieve accurate alignment between the electronic device and the wireless charging base of the wireless charger. bit.
  • the technical solution provided by the present application improves the charging rate of the wireless charger for charging the electronic device.
  • the charging alignment picture is determined according to the device information data, which specifically includes:
  • the model of the wireless charger search whether the picture of the charging base of the corresponding model is stored in the electronic device.
  • the search result is that the electronic device stores a picture of the charging base of the corresponding model, at least a part of the picture of the charging base is determined as the charging alignment picture.
  • the search result is that the electronic device does not store a picture of the charging base of the corresponding model
  • the picture of the wireless charging receiving coil of the electronic device is determined as the charging alignment picture.
  • the electronic device when the electronic device can search for the picture of the charging base of the wireless charger of this model, at least a part of the picture of the charging base is displayed as the charging alignment picture to prompt the user to place the electronic device on the wireless charging The best charging location for the base.
  • the wireless charging receiving coil of the electronic device can also be displayed to prompt the user to place the electronic device in a better charging position of the wireless charging base. It avoids the problem that the electronic device cannot be placed in the best charging position of the wireless charger when the electronic device cannot search for the picture of the charging base of the wireless charger of this model, and improves the alignment success between the electronic device and the wireless charger. Rate.
  • the wireless charging alignment detection method further includes:
  • the type of wireless charger is judged according to the model of the wireless charger.
  • the types of wireless chargers include horizontal chargers and vertical chargers.
  • a charging prompt interface will be displayed, including:
  • the geometric center of the wireless charging transmitting coil in the picture of the charging base of the horizontal charger is drawn on the screen of the electronic device at the position corresponding to the center of the wireless charging receiving coil, and then the charging base is The overlapping part of the picture and the screen of the electronic screen is displayed on the charging prompt interface as a charging alignment picture.
  • the charging alignment picture displayed on the screen of the electronic device coincides with the edge of the horizontal charger, the actual center of the wireless charging transmitter coil of the horizontal charger, the center of the wireless charging receiving coil of the electronic device, and the screen of the electronic device
  • the center of the wireless charging transmitter coil in the charging alignment picture shown above basically overlaps, and the wireless charger has high charging efficiency for charging electronic devices.
  • the wireless charging alignment detection method further includes:
  • the type of wireless charger is judged according to the model of the wireless charger.
  • the types of wireless chargers include horizontal chargers and vertical chargers.
  • the charging prompt interface will be displayed, including:
  • the posture of the electronic device is judged, and the posture of the electronic device includes a vertical placement state and a horizontal placement state.
  • the electronic device draw the geometric center of the wireless charging transmitting coil of the picture of the charging base of the vertical charger on the screen of the electronic device at the position corresponding to the center of the wireless charging receiving coil, and compare the picture of the charging base with the center of the wireless charging receiving coil.
  • the overlapping part of the screen is displayed on the charging prompt interface as a charging alignment picture.
  • the geometric center of the wireless charging transmitting coil in the picture of the charging base of the vertical charger is drawn on the screen of the electronic device at the position corresponding to the center of the wireless charging receiving coil, and then the charging base is The overlapping part of the picture and the screen of the electronic screen is displayed on the charging prompt interface as a charging alignment picture.
  • the charging alignment picture displayed on the screen of the electronic device coincides with the edge of the vertical charger, the actual center of the wireless charging transmitter coil of the vertical charger, the center of the wireless charging receiving coil of the electronic device, and the screen of the electronic device
  • the center of the wireless charging transmitter coil in the charging alignment picture shown above basically overlaps, and the wireless charger has high charging efficiency for charging electronic devices.
  • the position corresponding to the center of the wireless charging receiving coil is the position of the center of the wireless charging receiving coil on the screen surface of the electronic device, and the position is determined according to the pixels of the screen of the electronic device .
  • the screen resolution of the electronic device is 2640*1200
  • the direction of the width of the electronic device is the x-axis
  • the direction of the height of the electronic device is the y-axis
  • the lower left corner of the electronic device is the origin
  • the pixel point in the width direction of the electronic device is 1200
  • the pixel point in the height direction of the electronic device is 2640.
  • the coordinates of the center of the wireless charging receiving coil corresponding to the center position of the x-axis and the y-axis are (600, 800).
  • the screen resolution of the electronic device is fixed, and the coordinates of the position where each pixel of the screen resolution is located is uniquely determined. Therefore, determining the position of the center of the wireless charging receiving coil with the pixel points of the electronic device has high accuracy and uniqueness.
  • the charging rate displayed on the screen of the electronic device is higher than a preset value.
  • the charging rate displayed on the screen of the electronic device is lower than the preset value.
  • the user can further judge whether the electronic device and the wireless charger are well aligned by the value of the charging rate displayed on the electronic device.
  • the maximum charging rate of the wireless charger is 17W
  • the minimum preset value of the charging rate is 13W when the wireless charger and the electronic device are well aligned.
  • the charging rate 121 displayed on the screen of the electronic device is 15W. It is greater than the default value of 13W, indicating that the electronic device and the wireless charger are well aligned at this time.
  • the charging rate can be displayed on the screen of the electronic device, and the user can check the charging rate through the screen of the electronic device. And according to the relative magnitude of the charging rate and the preset value, it is judged whether the electronic device is in the best charging position of the wireless charger. In this way, it is possible to simultaneously determine whether the electronic device is in the best charging position of the wireless charger based on the charging alignment picture, and determine whether the electronic device is in the best charging position of the wireless charger through the relative size of the charging rate and the preset value. superior. Improves the accuracy of good alignment between the electronic device and the wireless charger.
  • the charging prompt interface includes a first identification, where the first identification is used to indicate the center position of the wireless charging receiving coil inside the electronic device.
  • the first identification can be a cross cursor displayed on the screen of the electronic device, and the cross cursor can prompt the center position of the wireless charging receiving coil.
  • the center position of the wireless charging receiving coil of the electronic device is identified by the first identification, thereby facilitating the user to view the center position of the wireless charging receiving coil of the electronic device. Prompt the user to make a good alignment of the electronic device and the wireless charger.
  • the charging prompt interface further includes at least one of the current power, charging time, charging rate and charging state of the electronic device.
  • the charging rate can be displayed on the screen of the electronic device, and the user can check the charging rate through the screen of the electronic device. And according to the relative magnitude of the charging rate and the preset value, it is judged whether the electronic device is in the best charging position of the wireless charger. In this way, it is possible to simultaneously determine whether the electronic device is in the best charging position of the wireless charger based on the charging alignment picture, and determine whether the electronic device is in the best charging position of the wireless charger through the relative size of the charging rate and the preset value. superior. Improves the accuracy of good alignment between the electronic device and the wireless charger. In addition, by displaying the current power, charging time, and charging status of the device on the charging prompt interface, it is convenient for the user to understand the detailed information of the current electronic device, and the user experience is improved.
  • the charging alignment detection method further includes:
  • the charging alignment picture may be stored in the memory of the electronic device, or the charging alignment picture may be stored in the cloud server of the electronic device.
  • the electronic device can store the charging alignment picture in the memory of the electronic device.
  • the electronic device can directly search for the charging alignment picture from the memory and display it on the screen of the electronic device. Improved alignment efficiency between electronic devices and wireless chargers.
  • the wireless alignment detection method before receiving the device information data sent by the wireless charger, the wireless alignment detection method further includes:
  • the electronic device sends a proprietary protocol to the wireless charger.
  • the private protocol can be a custom communication package performed by the manufacturer in the specified field of the Qi standard protocol in addition to the standard Qi protocol, wherein the custom communication package refers to the specified field 0x18 of the Qi standard protocol. model of the wireless charger. For example, when the data packet header specified in the standard Qi protocol is 01, the field represented by 01 is the signal strength packet. When the data packet header specified in the standard Qi protocol is 0x18, the field represented by 0x18 is a dedicated data packet.
  • the data package can include the model number of the wireless charger.
  • the device information data is the device information data sent by the wireless charger to the electronic device in response to the private protocol.
  • the electronic device and the wireless charger transmit the device information data through a private protocol, which avoids theft and tampering of the device information data, and ensures the security of the device information data.
  • the electronic device sends a private protocol to the wireless charger, including:
  • the electronic device In response to the communication signal sent by the wireless charger, the electronic device sends a proprietary protocol to the wireless charger, where the communication signal is a PING signal.
  • the wireless charger sends a PING signal to the electronic device.
  • the wireless charger as the sender, can periodically send the PING signal, for example, every 500 milliseconds. Normally, the duration of each sending of the PING signal by the sender is 90 milliseconds.
  • the transmission frequency of the PING signal is usually between 100KHz and 205KHz.
  • the electronic device After receiving the PING signal, the electronic device returns a signal strength packet to the wireless charger.
  • the electronic device acts as a receiving end, and in response to the received PING signal, the receiving end returns a signal strength packet to the wireless charger, and the signal strength packet is used to indicate to the wireless charger that the receiving end is placed on its charging base.
  • the signal strength packet includes information such as the signal strength of the PING signal received by the electronic device.
  • the electronic device feeds back the signal strength of the received PING signal to the wireless charger, and the wireless charger can know whether the electronic device is placed in the wireless charger based on the magnitude of the signal strength value. on the device.
  • the transmission frequency of the PING signal is usually between 100KHz and 205KHz, which can basically test the placement position between the wireless charger and the electronic device in real time, with good real-time performance.
  • an electronic device including:
  • Memory the memory stores code.
  • the processor when executing the code, implements any one of the wireless charging alignment detection methods mentioned above.
  • the technical solution provided by the present application is convenient to intuitively guide the user to place the electronic device on the relatively high position of the charging base of the wireless charger.
  • the optimal charging position is selected so that the distance between the central position of the wireless charging receiving coil of the electronic device and the central position of the wireless charging transmitting coil of the wireless charger is less than the first threshold. In this way, when the charging base of the wireless charger and the electronic device are not accurately aligned, the user can be prompted to adjust the position of the electronic device on the wireless charging base of the wireless charger to achieve accurate alignment between the electronic device and the wireless charging base of the wireless charger. bit.
  • the technical solution provided by the present application improves the charging rate of the wireless charger for charging the electronic device.
  • FIG. 1A and FIG. 1B are respectively a schematic outline diagram of a horizontal wireless charger and a schematic outline of a vertical wireless charger suitable for a wireless charging alignment detection method disclosed in an embodiment of the present application;
  • FIGS. 2A to 2F are schematic diagrams of charging alignment of the horizontal wireless charger in type 1 according to an embodiment of the application;
  • 2G to 2M are schematic diagrams of charging alignment of the vertical wireless charger in type 1 shown in the embodiment of the application;
  • 3A to 3H are schematic diagrams of charging alignment of the wireless charger in type 2 shown in the embodiment of the present application;
  • 4A to 4E are schematic diagrams of a wireless charger according to an embodiment of the present application.
  • 5A is a schematic structural diagram of a mobile phone according to an embodiment of the application.
  • 5B is a block diagram of a software structure of a mobile phone according to an embodiment of the application.
  • 6A is a communication sequence diagram of an electronic device and a wireless charger provided by an embodiment of the application.
  • 6B is a schematic flowchart of a specific implementation of an electronic device displaying a charging prompt interface according to an embodiment of the present application
  • 6C is a schematic diagram of the overlapping portion of the screen of the electronic device and the picture of the charging base provided by the embodiment of the application;
  • FIG. 7 exemplarily shows a schematic structural diagram of an electronic device disclosed in an embodiment of the present application.
  • FIG. 8 exemplarily shows a schematic structural diagram of an SOC disclosed in an embodiment of the present application.
  • the embodiment of the present application provides a wireless charging alignment detection method, which can be applied to electronic devices such as mobile phones, notebook computers, virtual reality devices, augmented reality vehicle-mounted devices, or smart wearable devices.
  • the electronic device is provided with at least a display screen, an input device and a processor.
  • the wireless charger charges the electronic device, and communication and interaction can be performed between the wireless charger and the electronic device.
  • the mobile phone 10 can be placed on the wireless charger 20 for charging.
  • the wireless charger 20 charges the mobile phone 10 through a wireless charging method.
  • the technical solutions according to the embodiments of the present application are applicable to structurally different types of wireless chargers.
  • the wireless charger 20 can be classified into a vertical wireless charger and a horizontal wireless charger according to its type.
  • FIG. 1A and FIG. 1B are respectively a schematic outline view of a horizontal wireless charger and a schematic outline of a vertical wireless charger suitable for a wireless charging alignment detection method disclosed in an embodiment of the present application.
  • the horizontal wireless charger refers to a wireless charger in which the wireless charging base is placed flat and the mobile phone 10 is placed flat on the wireless charging base for charging.
  • the vertical wireless charger refers to a wireless charger that charges by placing the mobile phone 10 upright on the wireless charging base.
  • the embodiment of the present application provides a wireless alignment detection method.
  • the user is prompted to place the mobile phone 10 in the optimal charging position of the wireless charger. position, so that the wireless charging receiving coil of the mobile phone 10 and the wireless charging transmitting coil of the wireless charger 20 are as close as possible or even coincident.
  • the charging alignment picture can indicate the position of the wireless charging transmitting coil of the wireless charger 20 .
  • the user can align the edge of the picture of the charging base displayed on the mobile phone 10 with the edge of the charging base of the wireless charger 20, or align the center of the picture of the charging base of the wireless charger with the center of the charging base of the wireless charger 20, thereby The user is guided to place the mobile phone 10 in a preferred charging position of the charging base of the wireless charger 20 .
  • the wireless charging receiving coil of the mobile phone 10 and the wireless charging transmitting coil of the wireless charger 20 are accurately aligned.
  • the state of accurate alignment may mean that the distance between the center position of the wireless charging receiving coil of the mobile phone 10 and the center position of the wireless charging transmitting coil of the wireless charger 20 is relatively close.
  • a first threshold may be set to determine whether the mobile phone 10 and the wireless charger 20 are accurately aligned.
  • the first threshold can be set by self-definition, and can be a single specific value. For example, the distance between the center positions of the wireless charger 20 and the mobile phone 10 when the charging power of the wireless charger 20 reaches 50% of the maximum charging power of the wireless charger is used as the first threshold.
  • the distance between the center positions of the two coils is 10mm
  • the distance between the center positions of the coils is less than or equal to 10mm, for example 5mm
  • the mobile phone and the wireless charger are in accurate alignment
  • the distance between the center of the coil after the user places the mobile phone on the wireless charger is greater than 10mm, such as 12mm
  • the mobile phone and the wireless charging The devices are in a state of inaccurate alignment.
  • the specific value of the first threshold is not limited in this embodiment of the present application.
  • the mobile phone 10 can identify the model of the wireless charger 20.
  • type one such a charger whose model can be identified by the electronic device is referred to as type one.
  • the picture of the charging base of the wireless charger 20 of this model is pre-stored in the mobile phone 10, or the mobile phone 10 can obtain the picture of the charging base of the wireless charger 20 by accessing the server or cloud database of the mobile phone.
  • the specific model of the mobile phone 10 cannot be recognized. In this application, such a charger whose model cannot be recognized by the electronic device is referred to as type two.
  • the mobile phone 10 may determine the model of the wireless charger based on the device information data transmitted by the wireless charger 20 .
  • the device information data can be transmitted between the wireless charger 20 and the mobile phone 10 based on the Qi standard.
  • the device information data includes, but is not limited to, the manufacturer number of the wireless charger, the model identifier of the wireless charger, and the like.
  • the charging alignment picture is used to indicate a preferred charging position for the user to place the mobile phone 10 on the charging base of the wireless charger 20 .
  • the representation form of the charging alignment picture displayed in the mobile phone 10 may be different.
  • the charging alignment picture displayed on the mobile phone 10 may include a real product picture of at least a part of the wireless charging base of the wireless charger, and the picture is that the charging base picture of the wireless charger coincides with the screen of the mobile phone 10 part.
  • the image is shown in what appears to be the base of the charger that the user can see through the bezel of the phone. In this way, when the edge of the picture of the wireless charging base displayed on the mobile phone 10 is aligned with the edge of the wireless charger, the center of the wireless charging receiving coil of the mobile phone 10, the center of the wireless charging transmitting coil on the charging alignment picture and the actual wireless charging The center of the wireless charging transmitter coil of the charger coincides with the three.
  • the user can determine that the position where the mobile phone 10 is placed is a better charging position on the wireless charger 20.
  • the wireless charging receiving coil of the mobile phone 10 and the wireless charging transmitting coil of the wireless charger 20 are in an accurate alignment state, that is, the mobile phone 10 It is in a state of accurate alignment with the wireless charger 20 .
  • the edge of the picture of the charging base of the wireless charger displayed on the mobile phone 10 and the edge of the charging base of the wireless charger 20 are offset, and the user can It is determined that the position where the mobile phone 10 is placed is not in a better charging position on the wireless charger 20.
  • the wireless charging receiving coil of the mobile phone 10 and the wireless charging transmitting coil of the wireless charger 20 are not accurately aligned (wireless charging receiving coil).
  • the distance between the center position of the coil and the center position of the wireless charging transmitting coil exceeds the first threshold), that is, the mobile phone 10 and the wireless charger 20 are in a state of inaccurate alignment.
  • the picture of the wireless charging receiving coil of the mobile phone is used as the charging alignment picture to display.
  • the picture of the charging coil of the mobile phone shows the location of the charging coil of the mobile phone in the mobile phone. If most or all of the coils shown in the picture are located outside the wireless charging base, the user can determine that the position where the mobile phone 10 is placed is not a good charging position on the wireless charger 20. At this time, the wireless charging of the mobile phone 10
  • the receiving coil and the wireless charging transmitting coil of the wireless charger 20 are in an inaccurate alignment state, that is, the mobile phone 10 and the wireless charger 20 are in an inaccurate alignment state.
  • the user can move the mobile phone 10 to a better charging position on the charging base of the wireless charger 20 according to the coil position shown in the picture, so that the wireless charging receiving coil of the mobile phone 10 and the wireless charging transmitting coil of the wireless charger 20 are accurately aligned. state, that is, the state of accurate alignment between the mobile phone 10 and the wireless charger 20 .
  • the technical solution provided by the present application is convenient to intuitively guide the user to place the mobile phone 10 in the best charging position of the charging base of the wireless charger 20, so that the wireless charging of the mobile phone 10 is possible.
  • the distance between the center position of the receiving coil and the center position of the wireless charging transmitting coil of the wireless charger 20 is smaller than the first threshold. In this way, when the charging base of the wireless charger 20 and the mobile phone 10 are not accurately aligned, the user can be prompted to adjust the position of the mobile phone 10 on the wireless charging base of the wireless charger to realize the connection between the mobile phone 10 and the wireless charging base of the wireless charger 20 Accurate alignment.
  • the technical solution provided by the present application improves the charging rate of the wireless charger for charging the mobile phone 10 .
  • FIG. 2A and 2B show the charging alignment picture of the horizontal wireless charger.
  • the charging alignment picture is displayed on the screen of the mobile phone 10 (for the purpose of clearly showing the charging alignment picture, only the charging alignment picture is shown in FIG. 2A ) out the phone 10).
  • the picture is shown in the form of the base of the charger as the user can see through the phone's screen.
  • the charging alignment picture 200 shows part or all of the picture of the charging base of the wireless charger of the corresponding model ( FIG. 2A exemplarily shows a part of the picture of the charging base of the wireless charger of the corresponding model).
  • FIG. 2A exemplarily shows a part of the picture of the charging base of the wireless charger of the corresponding model.
  • a charging alignment picture 200 is displayed on the mobile phone 10 .
  • the center 2000 of the wireless charging transmitting coil of the charging base of the horizontal wireless charger is located at the center of the charging alignment picture 200
  • the center 1000 of the wireless charging receiving coil of the mobile phone 10 and the wireless charging transmitting coil of the charging base The position of the center 2000 of the coil basically coincides.
  • the center of the wireless transmitting coil of the base basically overlaps, so as to ensure good alignment of the mobile phone 10 and the wireless charging base. It is worth noting that the center 2000 of the wireless charging transmitting coil and the center 1000 of the wireless charging receiving coil in FIG. 2B can be displayed on the screen of the mobile phone 10 for the user to observe.
  • the center 2000 of the wireless charging transmitting coil and the center 1000 of the wireless charging receiving coil in the embodiment of the present application may be selected not to be displayed on the screen of the mobile phone 10 (in the embodiment of the present application, the dotted line
  • the circles exemplarily represent the positions of the center 2000 of the wireless charging transmitting coil and the center 1000 of the wireless charging receiving coil).
  • the user can observe the Whether the edge of the charging alignment picture is smoothly connected with the edge of the wireless charger can determine whether the mobile phone 10 and the horizontal wireless charger 20 are in a state of accurate alignment. Among them, if the distance d between the center 1000 of the wireless charging receiving coil and the center 2000 of the wireless charging transmitting coil of the horizontal wireless charger does not exceed the threshold, it can be considered that the mobile phone 10 and the horizontal wireless charger 20 are in an accurate alignment state .
  • the user looks down on the mobile phone 10 placed on the horizontal wireless charger 20 , and the edge of the charging base picture shown in the charging alignment picture 200 is basically smoothly connected with the edge of the horizontal wireless charger 20 .
  • the distance between the center 1000 of the wireless charging receiving coil and the center 2000 of the wireless charging transmitting coil of the horizontal wireless charger is d.
  • the first threshold is 10mm
  • the d shown in the figure is 5mm, indicating that the distance between the centers of the two coils is d. If the distance does not exceed the first threshold, it can be determined that the mobile phone 10 and the horizontal wireless charger 20 have been accurately aligned.
  • the wireless charger has a higher charging efficiency for charging the electronic device.
  • the mobile phone 10 when the mobile phone 10 is placed behind the wireless charger 20, it is not in the best position. As shown in FIG. 2D, the mobile phone 10 and the wireless charger 20 are offset. At this time, the edge of the base of the charging alignment picture displayed on the display screen of the mobile phone 10 and the edge of the charging base of the wireless charger 20 are not smoothly connected. At this time, it is indicated that the mobile phone 10 is not in the optimal charging position on the horizontal wireless charger 20, and the wireless charger 20 cannot charge the mobile phone 10 or the charging efficiency is low.
  • the user can move the mobile phone 10 according to the picture of the charging base of the wireless charger 20 displayed on the mobile phone 10 so that the edge of the picture of the wireless charging base displayed on the mobile phone 10 is aligned with the edge of the wireless charger 20 (as shown in Figure 2E).
  • the alignment of the mobile phone 10 and the wireless charger 20 is completed.
  • the identification 1001 shown in FIG. 2F (No. A mark, which can be a cross cursor), to prompt the center position 1000 of the wireless charging receiving coil. That is, the location where the marker 1001 is located is the center location 1000 of the wireless charging receiving coil.
  • the location where the marker 1001 is located is the center location 1000 of the wireless charging receiving coil.
  • other manners may also be used for prompting, which is not limited in this embodiment of the present application.
  • FIG. 2G a charging alignment picture is displayed on the screen of the mobile phone 10 (in order to clearly show the charging alignment picture, only the mobile phone 10 is shown in FIG. 2A , and the wireless charger is not shown).
  • the picture is shown as a pattern of the base of the wireless charger that the user can see through the screen of the phone 10 .
  • the only difference from horizontal chargers is the type of picture shown.
  • the corresponding model of the vertical wireless charger is displayed on the mobile phone 10
  • the charging alignment picture 200 When the mobile phone 10 is placed on the wireless charger 20 and the handshake is completed, the mobile phone 10 is not in the optimal charging position of the wireless charger 20 . As shown in FIG. 2H , the mobile phone 10 and the wireless charger 20 are offset, that is, the edge of the charging alignment picture 200 of the wireless charger 20 displayed on the display screen of the mobile phone 10 and the edge of the charging base of the wireless charger 20 are obviously staggered . The wireless charger 20 cannot charge the mobile phone 10 or the charging efficiency is low.
  • the user can move the mobile phone 10 to the left according to the picture of the charging base of the wireless charger 20 displayed on the mobile phone 10 so that the edge of the picture of the wireless charging base displayed on the mobile phone 10 and the edge of the wireless charger 20
  • the mobile phone 10 is in a preferred charging position for the wireless charger.
  • the center position 2000 of the wireless charging transmitting coil 202 in the lower part of the charging base of the vertical wireless charger in the charging alignment picture 200 is very close to and partially coincident with the center position 1000 of the wireless charging receiving coil of the mobile phone 10 .
  • the alignment of the mobile phone 10 and the wireless charger 20 is completed.
  • the charging efficiency of the wireless charger 20 for charging the mobile phone 10 is relatively high.
  • the center position 2000 of the wireless charging transmitting coil of the wireless charger is relatively close.
  • the distance between the two centers is less than the first threshold, the mobile phone 10 and the wireless charger 20 are accurately aligned, and the wireless charger charges the electronic device at this time. higher charging efficiency.
  • the mobile phone can either be charged in a vertical manner (that is, stand on the charger with the short side of the mobile phone facing down), or can be charged in a vertical manner.
  • a vertical manner that is, stand on the charger with the short side of the mobile phone facing down
  • a vertical manner that is, stand on the charger with the short side of the mobile phone facing down
  • the horizontal and vertical mode that is, one of the long sides of the mobile phone is placed on the charger in a downward state.
  • the vertical charger shown in FIGS. 2J and 2K includes two wireless charging transmitter coils 202 and 204 (as an example, the wireless charging transmitter coil 202 and the wireless charging transmitter coil 204 are only to indicate their positions, and they will not appear on the mobile phone 10 . on the screen), the wireless charging transmitter coil 202 is located in the lower part of the vertical wireless charger, and the wireless charging transmitter coil 204 is located in the upper part of the vertical wireless charger, so that the user can pass the vertical and horizontal Can charge mobile phones.
  • the mobile phone 10 When the mobile phone 10 is placed horizontally on the vertical wireless charger, the mobile phone 10 detects that it is in a horizontal state by means of the data obtained by the gyroscope on the mobile phone, and accordingly displays the charging alignment picture 200 on the screen horizontally.
  • the wireless charging receiving coil 1000 of the mobile phone 10 and the center position 2000 of the wireless charging transmitting coil 202 in the charging alignment picture 200 coincide with each other.
  • a picture of the charging base of the charger when the mobile phone 10 is placed on the vertical charger in the horizontal state is stored on the local or associated server of the mobile phone 10 .
  • the edge of the charging base shown in the charging alignment picture 200 and the edge of the charging base of the wireless charger 20 observed by the user are staggered by a large distance from each other.
  • the center position of the wireless charging receiving coil of the mobile phone 10 is 1000
  • the distance d between the center position 2000 of the wireless charging transmitting coil in the charging alignment picture 200 and the center position of the wireless charging transmitting coil 202 of the wireless charger is large, indicating that the mobile phone 10 deviates far from the optimal charging position.
  • the distance d between the center position of the wireless charging transmitter coil 202 of the wireless charger and the center position 1000 of the wireless charging receiver coil of the mobile phone 10 and the center position 1000 of the wireless charging transmitter coil in the charging alignment picture exceeds the first threshold,
  • the mobile phone 10 and the wireless charger are not in a state of accurate alignment.
  • d is 15mm
  • the first threshold is set to 10mm.
  • the user can move the mobile phone 10 so that the edge of the charging alignment picture 200 displayed on the mobile phone 10 is aligned with the charging base of the wireless charger 20, so that the wireless
  • the distance d between the center position of the charging transmitting coil 202 and the central position 1000 of the wireless charging receiving coil of the mobile phone 10 and the central position 1000 of the wireless charging transmitting coil in the charging alignment picture is smaller than the first threshold, and the mobile phone 10 and the wireless charging are realized.
  • the charger 20 performs accurate alignment.
  • the position of the wireless charging receiving coil of the mobile phone 10 on the mobile phone 10 may not necessarily be at the geometric center of the mobile phone 10 .
  • the position of the charging alignment picture displayed on the mobile phone 10 will change with the change of the center position of the wireless charging receiving coil of the mobile phone 10 .
  • the charging alignment picture displayed on the mobile phone 10 is basically drawn and displayed with the center of the wireless charging receiving coil of the mobile phone 10 as the center. As shown in FIG. 2L, when the center position 1000 of the wireless charging receiving coil of the mobile phone 10 is located at the lower position of the mobile phone 10, the charging alignment picture will be displayed at the lower position of the electronic device (the wireless charger 20 is not shown in FIG. 2L). ). As shown in FIG.
  • the charging alignment picture 200 will display the position on the left side of the mobile phone 10 in the horizontal state on the horizontal screen. After aligning the base edge of the charging alignment picture 200 with the base edge of the wireless charger 20, the center position 2001 of the wireless charging transmitting coil of the charging base of the wireless charger 20 in the charging alignment picture of the mobile phone 10 is also in the horizontal state. The left position of the mobile phone 10 .
  • the mobile phone 10 can store the charging alignment picture in the memory of the mobile phone 10 .
  • the mobile phone 10 can directly search for the charging alignment picture from the memory and display it on the screen of the mobile phone 10 .
  • the alignment efficiency between the mobile phone 10 and the wireless charger is improved.
  • the wireless charging receiving coil 100 of the mobile phone may be located at the center of the mobile phone, and the center position 1000 of the wireless charging receiving coil 100 of the mobile phone 10 is located at the geometric center of the mobile phone 10 .
  • FIG. 3B which is a horizontal wireless charger 20 exemplarily shown in this application
  • the horizontal wireless charger is circular, and its wireless charging transmitting coil 201 is located at the center of the wireless charger.
  • FIG. 3C which is a vertical wireless charger 20 exemplarily shown in this application, the vertical wireless charger has two wireless charging transmitter coils 202 and 204 .
  • the charging alignment picture of the wireless charger is the picture of the wireless charging receiving coil 100 of the mobile phone 10 .
  • the picture shows the shape of the wireless charging receiving coil in the mobile phone, and identifies the position of the coil in the mobile phone (the position of the wireless charging receiving coil inside the mobile phone is mapped to the screen surface of the mobile phone).
  • FIG. 3D when the mobile phone 10 is placed on the horizontal wireless charger 20 , the mobile phone 10 cannot recognize the model of the charger, so a picture of the charging receiving coil 100 is displayed on the screen of the mobile phone 10 .
  • 3D is located at the geometric center of the mobile phone, prompting the user to place the wireless charging receiving coil 100 of the mobile phone 10 as close as possible to the center position of the charging base of the wireless charger 20 (assuming the wireless charger The wireless charging transmitter coil 20 is located in the center of the horizontal charger), so that the wireless charging transmitter coil of the wireless charger 20 and the wireless charging receiver coil 100 of the mobile phone 10 are in an accurate alignment state, so as to achieve a high charging rate. Purpose.
  • a charging prompt interface is displayed on the screen of the mobile phone 10 , and the charging prompt interface shows that the wireless charging receiving coil 100 is located at the lower position of the screen of the mobile phone 10 , and the user can know that the wireless charging receiving coil is located in the mobile phone according to the charging prompt interface. 10 specific locations. Therefore, it is convenient for the user to place the wireless charging receiving coil of the mobile phone 10 at a suitable position of the wireless charger 20, and the problems of low charging rate and charging failure caused by the deviation of the wireless charging receiving coil of the mobile phone 10 from the wireless charging transmitting coil of the wireless charger 20 are avoided. .
  • the mobile phone 10 In order for the mobile phone 10 to display the picture of the wireless charging receiving coil 100 on the screen surface at a corresponding position corresponding to the specific position of the wireless charging receiving coil inside the mobile phone, the following methods can be used. For example, when the wireless charging receiving coil 100 of the mobile phone 10 is located at a lower position of the mobile phone 10, the center of the wireless charging receiving coil 100 is located at P as shown in FIG. 3F, and the coordinates of P can be determined based on the pixel points of the mobile phone.
  • the mobile phone The screen resolution is 2640*1200
  • the direction of the width of the mobile phone is the x-axis
  • the direction of the height of the mobile phone is the y-axis
  • the lower left corner of the mobile phone is the origin
  • the pixels in the width direction of the mobile phone are 1200
  • the pixels in the height direction of the mobile phone are 1200.
  • the coordinates of the center position of the wireless charging receiving coil 100 corresponding to the x-axis and the y-axis are (600, 800).
  • the wireless charging receiving coil 100 of the mobile phone 10 can also be located at any position of the mobile phone 10, and the mobile phone 10 only needs to store the position data of the internal wireless charging receiving coil in the memory in advance, so that the processor can check the data on the mobile phone. Bit procedure is called.
  • the wireless charging transmitter coil of the charging base of the wireless charger can also be located at any position of the wireless charger 20. If it is a type 1 wireless charger of a known model, the wireless charger can be identified in the pre-stored charging alignment picture. The exact location of the charging transmitter coil or its center.
  • the charging alignment picture displayed in the charging prompt interface includes the position of the wireless charging transmitter coil
  • the position should be displayed on the position where the wireless charging receiver coil inside the mobile phone is mapped to the screen surface, so that with the help of the charging alignment picture prompt, the user can
  • the mobile phone or wireless charger can be moved so that the wireless charging receiving coil inside the mobile phone and the wireless charging transmitting coil inside the wireless charger are in a state of accurate alignment.
  • the charging prompt interface may also display information such as charging status, charging power, and charging rate.
  • the embodiments of the present application do not limit the types of information displayed on the charging prompt interface.
  • the charging prompt interface of the electronic device not only displays the wireless charging receiving coil 100 , but also displays the charging icon 120 of the charging power of the electronic device (in the figure, the current charging power is 50% as an example), and can also For example, as shown in FIG. 3H , the charging rate 121 of the electronic device is shown (in the figure, the charging power is 15W as an example), and the like.
  • the user can further judge whether the electronic device and the wireless charger are well aligned by the value of the charging rate 121 displayed on the electronic device.
  • the maximum charging rate of the wireless charger is 17W
  • the minimum preset value of the charging rate when the wireless charger and the electronic device are well aligned is 13W.
  • the charging rate 121 displayed on the screen of the electronic device is 15W. It is greater than the default value of 13W, indicating that the electronic device and the wireless charger are well aligned at this time.
  • the mobile phone 10 can also periodically feed back the received energy to the wireless charger to indicate whether there is a foreign object between the mobile phone 10 and the wireless charger.
  • the mobile phone 10 also periodically sends a control error to the wireless charger, so that the wireless charger can adjust the transmitted power signal to a target value. That is to say, when a foreign object is blocked between the mobile phone 10 and the wireless charger, the energy emitted by the wireless charger is jointly received by the mobile phone 10 and the foreign object, resulting in a decrease in the energy value received by the mobile phone 10 .
  • a certain value can be determined according to actual experience, for example, 0.5W, which is not limited in the embodiments of the present application.
  • the target value refers to the target received power value determined according to its own needs after the mobile phone recognizes the wireless charger.
  • the target received power value of the mobile phone 10 is set according to the type of the wireless charger at the transmitting end and the temperature of the battery of the mobile phone 10 .
  • the charging capacity (maximum transmission power) of the wireless charger is 40W
  • the current temperature of the battery of the mobile phone 10 is 25 degrees (generally, the reasonable temperature of the mobile phone 10 is between 10 degrees and 45 degrees)
  • the target reception of the mobile phone 10 is The power can be set to 40W.
  • the target received power of the mobile phone 10 may also be smaller than the charging capability of the wireless charger, which is not limited in this embodiment of the present application.
  • the control error is the difference between the actual received power value of the handset 10 and the target received power value. If the control error fed back by the mobile phone 10 to the wireless charger is negative (that is, the actual received power value is less than the target received power value), the wireless charger will increase the transmit power; if the control error fed back by the mobile phone 10 to the wireless charger is positive value (that is, the actual received power value is greater than the target received power value), the wireless charger will reduce the transmit power.
  • the technical solution provided by the present application can prompt the user to adjust the electronic device in The position on the wireless charging base of the wireless charger, when the wireless charging base and the electronic device are not accurately aligned, guide the user to place the electronic device in the best charging position of the charging base of the wireless charger, so that the wireless charging receiving coil of the electronic device is The distance between the center position of the wireless charger and the center position of the wireless charging transmitting coil of the wireless charger is less than the first threshold. In this way, accurate alignment between the electronic device and the wireless charging base of the wireless charger is achieved, and the charging rate of the wireless charger to the electronic device is improved.
  • the display mode of the charging alignment picture is exactly the same as that of the horizontal charger, so it is not repeated here.
  • FIGS. 4A and 4B are schematic diagrams of the appearance of a wireless charger of a wireless charging alignment detection method disclosed in an embodiment of the present application.
  • the wireless charger 20 shown in FIG. 4A is a horizontal wireless charger
  • the wireless charger 20 shown in FIG. 4B is a vertical wireless charger.
  • the wireless charger 20 includes an upper cover 201 , a lower cover 202 and a wireless charging base body 203 , and the upper cover 201 and the lower cover 202 are used to fix the wireless charger The charging base body 203 .
  • the lower cover 202 is provided with cooling holes and a cooling fan for cooling the wireless charger 20 .
  • the wireless charging base body 203 includes but is not limited to a main control circuit 2030 , a wireless charging transmitting coil 2031 and a magnetic isolation sheet 2032 .
  • the magnetic isolation sheet 2032 is fixed on the back of the wireless charging transmitting coil 2031 to improve the electromagnetic conversion efficiency.
  • the main control circuit 2030 includes, but is not limited to, a main control chip 20300 and a full-bridge inverter 20301 .
  • the current output by the power supply (which can be a DC power supply) of the wireless charger 20 is converted into an AC transmission signal by the full-bridge inverter 20301 under the control of the main control chip 20300 .
  • the wireless charging transmission coil 2031 transmits the AC transmission signal to the mobile phone 10 through electromagnetic coupling.
  • the wireless charging base body 203 sends a communication signal (as the first communication signal) to the mobile phone 10 by changing the inverter frequency.
  • the first communication signal may be a detection signal, and the detection signal may be a PING signal.
  • the wireless charging transmitting coil 2031 of the wireless charging base body 203 can transmit a PING signal as a detection signal at a transmission frequency between 100KHZ and 205KHZ (which can be periodic transmission) to detect whether there is an electronic device on the wireless charging base body 203 and shake hands with the mobile phone 10 .
  • the wireless charging receiving coil 100 of the mobile phone 10 receives the PING signal sent by the wireless charging transmitting coil 2031, as a response, the mobile phone 10 returns a signal strength packet (as a response signal) to the wireless charger 20, and the signal strength packet includes the signal strength packet received by the electronic device.
  • Information such as the signal strength of the PING signal sent by the wireless charger is used to indicate that an electronic device is placed on the wireless charging base body 203 .
  • the use of the PING signal to detect whether an electronic device is placed on the wireless charging stand body 203 is specifically: the PING signal has a certain transmission power, and when the electronic device as the receiving end receives the PING signal, it will induce a voltage of the corresponding amplitude Signal.
  • the electronic device as the receiving end compares the amplitude of the voltage signal corresponding to the PING signal with the maximum voltage value of the electronic device and multiplies it with the correlation coefficient (correlation coefficient can be taken as 256) to obtain the signal of the electronic device end relative to the wireless charger Strength Q.
  • the calculation formula is as follows:
  • U is the amplitude of the voltage signal corresponding to the PING signal
  • U max is the maximum charging voltage value of the electronic device
  • E is the correlation coefficient, which can be 256.
  • the electronic device side After the electronic device side obtains the signal strength Q, it feeds back the signal strength Q to the wireless charger based on the Qi protocol. After the wireless charger receives the signal strength Q, it is determined that an electronic device is placed on the wireless charger. If the wireless charger does not receive the signal strength Q, it is determined that no electronic device is placed on the wireless charger.
  • Qi is the "wireless charging" standard launched by the Wireless Power Consortium (WPC), the world's first standardization organization to promote wireless charging technology.
  • WPC Wireless Power Consortium
  • the PING signal is sent every 500 milliseconds by the sender. signal of. Normally, the duration of each sending of the PING signal by the sender is 90 milliseconds.
  • the transmission frequency of the PING signal is usually between 100KHz and 205KHz.
  • the sending end After the sending end receives the response signal, it can stop sending the PING signal, and the receiving end can realize functions such as charging by sending the power signal.
  • the transmitting end may be the wireless charger 20
  • the receiving end may be the mobile phone 10 .
  • the mobile phone 10 continues to send the identification package and the configuration package to the wireless charger 20, wherein the identification package is composed of the manufacturer code, device identifier, model and other information of the mobile phone 10, and is used to identify the model and identity of the mobile phone 10.
  • the configuration package includes information such as the maximum received power of the mobile phone 10 .
  • the maximum received power of the mobile phone 10 is determined by the wireless charger 20 .
  • the wireless charger 20 sends a communication signal (as a second communication signal) containing information such as the model and maximum output power of the wireless charger 20 to the mobile phone 10 based on the private protocol.
  • the mobile phone 10 sends the private protocol to the wireless charger 20 .
  • the wireless charger 20 responds to the private protocol, the wireless charger 20 sends a communication signal (as a second communication signal) containing information such as the model and maximum output power of the wireless charger 20 to the mobile phone 10 .
  • the mobile phone 10 After the mobile phone 10 receives the second communication signal, according to the model of the wireless charger 20 contained in the second communication signal, it searches whether the picture of the charging base of the wireless charger 20 is stored in the memory, and if the wireless charger 20 is stored in the memory The picture of the charging base is displayed on the display screen of the mobile phone 10 .
  • the mobile phone 10 cannot find the picture of the charging base of the wireless charger 20 from the memory according to the model of the wireless charger 20 included in the second communication signal, then find the picture of the wireless charging receiving coil of the mobile phone 10 from the memory and display it in the on the display screen of the mobile phone 10 .
  • the private protocol can be a custom communication package performed by the manufacturer in the specified field of the Qi standard protocol in addition to the standard Qi protocol, wherein the custom communication package refers to the specified field 0x18 of the Qi standard protocol. model of the wireless charger. For example, when the data packet header specified in the standard Qi protocol is 01, the field represented by 01 is the signal strength packet. When the data packet header specified in the standard Qi protocol is 0x18, the field represented by 0x18 is a dedicated data packet.
  • the data package may include the model number of the wireless charger 20 .
  • the wireless charger 20 transmits energy (power signal) to the mobile phone 10 according to a preset configuration to realize the charging of the mobile phone 10 .
  • the mobile phone 10 can also determine the transmit power of the wireless charger 20 according to the energy transmitted by the wireless charger 20 to the mobile phone 10 .
  • the preset configuration refers to the standard charging power defined by the Qi protocol.
  • the standard charging power may be the maximum charging power (maximum transmission power) of the wireless charger 20 .
  • FIG. 5A is a schematic structural diagram of a mobile phone 10 according to an embodiment of the present application.
  • the mobile phone 10 may include a processor 410, an external memory interface 420, an internal memory 421, a universal serial bus (USB) interface 430, a charging management module 440, a power management module 441, a battery 442, Antenna 1, Antenna 2, Mobile Communication Module 450, Wireless Communication Module 460, Audio Module 470, Speaker 470A, Receiver 470B, Microphone 470C, Headphone Interface 470D, Sensor Module 480, Key 490, Motor 491, Indicator 492, Camera 493, A display screen 494, and a subscriber identification module (SIM) card interface 495, etc.
  • SIM subscriber identification module
  • the sensor module 480 may include a pressure sensor 480A, a gyroscope sensor 480B, an air pressure sensor 480C, a magnetic sensor 480D, an acceleration sensor 480E, a distance sensor 480F, a proximity light sensor 480G, a fingerprint sensor 480H, a temperature sensor 480J, a touch sensor 480K, and an environmental sensor.
  • the structure illustrated in this embodiment does not constitute a specific limitation on the mobile phone 10 .
  • the cell phone 10 may include more or fewer components than shown, or some components may be combined, or some components may be split, or a different arrangement of components.
  • the illustrated components may be implemented in hardware, software, or a combination of software and hardware.
  • the processor 410 may include one or more processing units, for example, the processor 410 may include an application processor (application processor, AP), a modem processor, a graphics processor (graphics processing unit, GPU), an image signal processor ( image signal processor, ISP), controller, memory, video codec, digital signal processor (DSP), baseband processor, and/or neural-network processing unit (NPU), etc. . Wherein, different processing units may be independent devices, or may be integrated in one or more processors.
  • the controller may be the nerve center and command center of the cell phone 10 .
  • the controller can generate an operation control signal according to the instruction operation code and timing signal, and complete the control of fetching and executing instructions.
  • a memory may also be provided in the processor 410 for storing instructions and data.
  • the memory in processor 410 is cache memory. This memory may hold instructions or data that have just been used or recycled by the processor 410 . If the processor 410 needs to use the instruction or data again, it can be called directly from the memory. Repeated accesses are avoided, and the waiting time of the processor 410 is reduced, thereby improving the efficiency of the system.
  • processor 410 may include one or more interfaces.
  • the interface may include an integrated circuit (inter-integrated circuit, I2C) interface, an integrated circuit built-in audio (inter-integrated circuitsound, I2S) interface, a pulse code modulation (pulse code modulation, PCM) interface, a universal asynchronous receiver (universal asynchronous receiver) /transmitter, UART) interface, mobile industry processor interface (MIPI), general-purpose input/output (GPIO) interface, subscriber identity module (SIM) interface, and/or Universal serial bus (universal serial bus, USB) interface, etc.
  • I2C integrated circuit
  • I2S integrated circuit built-in audio
  • PCM pulse code modulation
  • PCM pulse code modulation
  • UART universal asynchronous receiver
  • MIPI mobile industry processor interface
  • GPIO general-purpose input/output
  • SIM subscriber identity module
  • USB Universal serial bus
  • the interface connection relationship between the modules illustrated in this embodiment is only a schematic illustration, and does not constitute a structural limitation of the mobile phone 10 .
  • the mobile phone 10 may also adopt different interface connection manners in the foregoing embodiments, or a combination of multiple interface connection manners.
  • the wireless communication function of the mobile phone 10 can be realized by the antenna 1, the antenna 2, the mobile communication module 450, the wireless communication module 460, the modulation and demodulation processor, the baseband processor, and the like.
  • Antenna 1 and Antenna 2 are used to transmit and receive electromagnetic wave signals.
  • Each antenna in handset 10 may be used to cover a single or multiple communication frequency bands. Different antennas can also be reused to improve antenna utilization.
  • the antenna 1 can be multiplexed as a diversity antenna of the wireless local area network. In other embodiments, the antenna may be used in conjunction with a tuning switch.
  • the wireless communication module 460 can provide applications on the mobile phone 10 including wireless local area networks (WLAN) (such as wireless fidelity (Wi-Fi) networks), bluetooth (BT), global navigation satellite system ( global navigation satellite system, GNSS), frequency modulation (frequency modulation, FM), near field communication technology (near field communication, NFC), infrared technology (infrared, IR) and other wireless communication solutions.
  • WLAN wireless local area networks
  • BT wireless fidelity
  • GNSS global navigation satellite system
  • frequency modulation frequency modulation, FM
  • NFC near field communication technology
  • infrared technology infrared, IR
  • the wireless communication module 460 may be one or more devices integrating at least one communication processing module.
  • the wireless communication module 460 receives the electromagnetic wave via the antenna 2, frequency modulates and filters the electromagnetic wave signal, and sends the processed signal to the processor 410.
  • the wireless communication module 460 can also receive the signal to be sent from the processor 410 , perform frequency modulation on it, amplify it, and convert it
  • the antenna 1 of the mobile phone 10 is coupled with the mobile communication module 450, and the antenna 2 is coupled with the wireless communication module 460, so that the mobile phone 10 can communicate with the network and other devices through wireless communication technology.
  • Wireless communication technologies may include Global System for Mobile Communications (GSM), General Packet Radio Service (GPRS), Code Division Multiple Access (CDMA), Broadband Code Division Multiple Access (CDMA) address (wideband code division multiple access, WCDMA), time division code division multiple access (time-division code division multiple access, TD-SCDMA), long term evolution (long term evolution, LTE), BT, GNSS, WLAN, NFC, FM, and / or IR technology, etc.
  • the GNSS may include a global positioning system (global positioning system, GPS), a global navigation satellite system (GLONASS), a Beidou satellite navigation system (beidounavigation satellite system, BDS), a quasi-zenith satellite system (quasi- zenith satellite system, QZSS) and/or satellite based augmentation systems (SBAS).
  • GPS global positioning system
  • GLONASS global navigation satellite system
  • BDS Beidou satellite navigation system
  • BDS Beidounavigation satellite system
  • QZSS quasi-zenith satellite system
  • SBAS satellite based augmentation systems
  • the mobile phone 10 realizes the display function through the GPU, the display screen 494, and the application processor.
  • the GPU is a microprocessor for image processing, and is connected to the display screen 494 and the application processor.
  • the GPU is used to perform mathematical and geometric calculations for graphics rendering.
  • Processor 410 may include one or more GPUs that execute program instructions to generate or alter display information.
  • Display screen 494 is used to display images, video, and the like.
  • the images include, but are not limited to, a picture of charging alignment, a picture of the wireless charging receiving coil of the mobile phone 10, and at least one of parameters such as charging status, charging power, and charging rate.
  • Display screen 494 includes a display panel.
  • the display panel can be a liquid crystal display (LCD), an organic light-emitting diode (OLED), an active-matrix organic light-emitting diode or an active-matrix organic light-emitting diode (active-matrix organic light-emitting diode).
  • diode, AMOLED organic light-emitting diode
  • flexible light-emitting diode flexible light-emitting diode (flex light-emitting diode, FLED), Miniled, MicroLed, Micro-oLed, quantum dot light-emitting diode (quantum dot light emitting diodes, QLED) and so on.
  • the mobile phone 10 can realize the shooting function through the ISP, the camera 493, the video codec, the GPU, the display screen 494 and the application processor.
  • Internal memory 421 may be used to store computer executable program code, which includes instructions.
  • the processor 410 executes various functional applications and data processing of the mobile phone 10 by executing the instructions stored in the internal memory 421 .
  • the processor 410 may respond to a user's touch event on the display screen 494 by executing the instructions stored in the internal memory 421 .
  • the internal memory 421 may include a storage program area and a storage data area.
  • the storage program area can store an operating system, an application program required for at least one function (such as a sound playback function, an image playback function, etc.), and the like.
  • the storage data area can store data (such as audio data, phone book, etc.) created during the use of the mobile phone 10 and the like.
  • the internal memory 421 may include high-speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, universal flash storage (UFS), and the like.
  • the content stored in the internal memory 421 is not limited.
  • the internal memory 421 can be used to pre-store charging alignment pictures, including pictures of the charging base of each model of wireless chargers (pictures with or without the wireless charging transmitter coils), pictures of the mobile phone 10 At least one of a picture of the wireless charging receiving coil and a screen resolution of the mobile phone 10 .
  • the gyro sensor 480B can be used to determine the motion attitude of the mobile phone 10 .
  • the angular velocity of cell phone 10 about three axes may be determined by gyro sensor 480B.
  • the gyroscope sensor 480B acquires the attitude data of the mobile phone 10 in real time, and reports the attitude data to the processor 410.
  • the processor 410 determines according to the attitude data that the mobile phone 10 is currently in a lying state, a horizontal standing, an erection, etc., and according to the determined Choose how to display the charging alignment picture in the mobile phone placement status.
  • the processor 410 detects that the mobile phone 10 is placed in a horizontal position according to the attitude data obtained by the gyroscope sensor 480B, and accordingly displays the charging alignment picture on the screen in landscape orientation. 200, see Figure 2K.
  • the mobile phone 10 may further include a wireless charging receiving coil (wireless charging receiving end) for receiving the energy inputted by the wireless charging.
  • the wireless charging input energy received by the wireless charging receiving coil is managed by the charging management module 440 , and the input energy is used to charge the battery 442 .
  • the wireless charging receiving coil may also be used to receive the first communication signal and the second communication signal sent by the wireless charger 20 .
  • the power management module 441 is used to connect the battery 442 , the charging management module 440 and the processor 410 .
  • the power management module 441 receives input from the battery 442 and/or the charge management module 440, and supplies power to the processor 410, the internal memory 421, the display screen 494, the camera 493, and the wireless communication module 460.
  • the power management module 441 can also be used to monitor parameters such as battery capacity, battery cycle times, battery health status (leakage, impedance), etc., and report the above parameters to the processor 410, which is displayed on the display screen 494 in the charging prompt interface, see Fig. 3G.
  • the processor may further determine the wireless charging receiving coil of the mobile phone 10 and the wireless charger 20 according to the signal strength returned by the mobile phone 10 for the first communication signal and the power signal sent by the wireless charger 20 to the mobile phone 10 The positional relationship between the wireless charging transmitter coils.
  • the positional relationship between the wireless charging receiving coil of the mobile phone 10 and the wireless charging transmitting coil of the wireless charger 20 may include the accurate alignment between the wireless charging receiving coil of the mobile phone 10 and the wireless charging transmitting coil of the wireless charger 20 or Misalignment (offset).
  • the software system of the mobile phone 10 may adopt a layered architecture, an event-driven architecture, a microkernel architecture, a microservice architecture, or a cloud architecture.
  • the embodiments of the present application take an Android system with a layered architecture as an example to illustrate the software structure of the mobile phone 10 as an example.
  • FIG. 5B exemplarily shows a block diagram of the software structure of the mobile phone 10 .
  • the layered architecture divides the software into several layers, and each layer has a clear role and division of labor. Layers communicate with each other through software interfaces.
  • the Android system is divided into four layers, which are, from top to bottom, an application layer, an application framework layer, an Android runtime (Android runtime) and a system library, and a kernel layer.
  • the application layer can include a series of application packages.
  • the application package may include applications such as camera, sports, gallery, application store, contacts, mailbox, cloud sharing, memo, setting, music, short message and so on.
  • the application framework layer provides an application programming interface (application programming interface, API) and a programming framework for the applications of the application layer.
  • the application framework layer includes some predefined functions.
  • the application framework layer may include a display policy service, a power management service (powermanager service, PMS), and a display management service (displaymanager service, DMS).
  • the application framework layer may also include activity manager (activity manager service, AMS), window management service (window manager service, WMS), touch event management service (Input Manager Service, IMS), content provider, view system, A phone manager, a resource manager, a notification manager, etc., are not limited in this embodiment of the present application.
  • Content providers are used to store and retrieve data and make these data accessible to applications.
  • the data may include video, images (such as pictures of the wireless charging base of the wireless charger, pictures of the wireless charging receiving coil of the mobile phone 10 and other charging alignment pictures), audio, calls made and received, browsing history and bookmarks, phone calls book, etc.
  • the display policy service can be used to obtain the provided image, charging status, charging power and other data from the content provider and send it to the WMS, which is displayed on the display screen of the mobile phone 10 by the WMS.
  • the WMS is used to manage window programs.
  • the window management service can obtain the screen size of the display screen of the mobile phone 10, and display the picture of the wireless charging base of the wireless charger, the wireless charging receiving coil of the mobile phone 10, etc. Window of the charging prompt interface.
  • the window management server WMS of the application framework layer draws the window according to the settings of the AMS, and then sends the window data to the display driver of the kernel layer, and the display driver displays the corresponding interface on the display screen.
  • the IMS is used to sense touch events, obtain coordinates at the touch position on the screen, and so on.
  • the view system includes visual controls, such as controls for displaying text, controls for displaying pictures, and so on. View systems can be used to build applications.
  • a display interface can consist of one or more views.
  • a lock screen interface that includes a music application icon may include a view that displays text and a view that displays pictures.
  • the phone manager is used to provide the communication function of the mobile phone 10 .
  • the management of call status including connecting, hanging up, etc.).
  • the resource manager provides various resources for the application, such as localization strings, icons, pictures, layout files, video files and so on.
  • Notification Manager enables applications to display notification information in the status bar or on the system lock screen.
  • the notification manager can also display notifications in the status bar at the top of the system in the form of graphs or scroll bar text, such as notifications of applications running in the background, and notifications on the screen in the form of dialog windows. For example, text information is prompted in the status bar, a prompt sound is issued, the mobile phone vibrates, and the indicator light flashes.
  • Android Runtime includes core libraries and a virtual machine. Android runtime is responsible for scheduling and management of the Android system.
  • the core library consists of two parts: one is the function functions that the java language needs to call, and the other is the core library of Android.
  • the application layer and the application framework layer run in virtual machines.
  • the virtual machine executes the java files of the application layer and the application framework layer as binary files.
  • the virtual machine is used to perform functions such as object lifecycle management, stack management, thread management, safety and exception management, and garbage collection.
  • a system library can include multiple functional modules. For example: surface manager (surfacemanager), media library (MediaLibraries), 3D image processing library (eg: OpenGLES), 2D graphics engine (eg: SGL) and so on.
  • surface manager surface manager
  • media library MediaLibraries
  • 3D image processing library eg: OpenGLES
  • 2D graphics engine eg: SGL
  • the Surface Manager is used to manage the display subsystem and provides a fusion of 2D and 3D layers for multiple applications.
  • the media library supports playback and recording of a variety of commonly used audio and video formats, as well as still image files.
  • the media library can support a variety of audio and video encoding formats, such as: MPEG4, H.264, MP3, AAC, AMR, JPG, PNG, etc.
  • the 3D image processing library is used to implement 3D image drawing, image rendering, compositing, and layer processing.
  • 2D graphics engine is a drawing engine for 2D drawing.
  • the kernel layer is the layer between hardware and software.
  • the kernel layer includes at least the kernel layer, which may include display drivers, input/output device drivers (eg, keyboard, touch screen, earphone, speaker, microphone, etc.), camera drivers, audio drivers, and sensor drivers. This embodiment of the present application does not impose any limitation on this.
  • the above-mentioned mobile phone 10 may be a full-screen mobile phone, or a mobile phone with a screen and physical buttons independent of the screen disposed on the front of the mobile phone, or the like.
  • the form and function of the mobile phone are not limited.
  • the following describes an exemplary wireless charging alignment detection method according to the embodiment of the present application.
  • the electronic device When the electronic device is placed on the wireless charger, the electronic device will establish a wireless communication connection with the wireless charger.
  • the specific process refer to the communication sequence diagram shown in FIG. 6A .
  • Establishing a wireless communication connection between the electronic device and the wireless charger includes at least the following steps S500 to S504:
  • Step S500 the wireless charger sends a PING signal to the electronic device.
  • the wireless charger as the sender, can periodically send the PING signal, for example, every 500 milliseconds. Normally, the duration of each sending of the PING signal by the sender is 90 milliseconds.
  • the transmission frequency of the PING signal is usually between 100KHz and 205KHz.
  • Step S501 After receiving the PING signal, the electronic device returns a signal strength packet to the wireless charger.
  • the electronic device acts as a receiving end, in response to the received PING signal, the receiving end returns a signal strength packet to the wireless charger, and the signal strength packet is used to indicate to the wireless charger that the receiving end is placed on its charging base.
  • the signal strength packet includes information such as the signal strength of the PING signal received by the electronic device.
  • Step S502 the electronic device returns the signal strength packet and after the wireless charger receives the signal strength packet, the electronic device continues to send the identification packet and the configuration packet of the electronic device to the wireless charger.
  • the identity identification package is composed of information such as the manufacturer code, device identifier, and model of the electronic device, and is used to identify the model and identity of the electronic device.
  • the configuration package contains information such as the maximum received power of the electronic device. Based on the configuration package received, the wireless charger can determine the maximum power received by the electronic device.
  • Step S503 The electronic device sends the private protocol to the wireless charger.
  • the process proceeds to step S504.
  • the wireless charger does not respond to the private agreement, the electronic device is charged by the wireless charger in the original manner.
  • the "original method” here means that after the electronic device is placed on the wireless charger for charging, only the charging icon is displayed on the display screen of the electronic device, including the charging status icon and the current battery level.
  • Step S504 In response to the private protocol sent by the electronic device, the wireless charger sends device information data to the electronic device.
  • the device information data includes but is not limited to information such as the model and maximum output power of the wireless charger.
  • FIG. 6B is a schematic flowchart of a specific implementation of displaying a charging prompt interface for an electronic device disclosed in an embodiment of the present application.
  • Step S505 The electronic device receives device information data. Specifically, the electronic device receives device information data sent by the wireless charger, and the device information data includes but is not limited to information such as the model and maximum output power of the wireless charger.
  • Step S506 The electronic device identifies the model of the wireless charger in the device information. Specifically, according to the received model of the wireless charger, the electronic device searches whether the local memory has pre-stored a picture of the charging base of the wireless charger of the corresponding model. If the electronic device can search for the picture of the charging base of the wireless charger of this model, then go to step S507, after judging the type of the wireless charger (and the posture of the electronic device), at least a part of the picture of the charging base is determined as the charging pair and display it on the charging prompt interface; if the charging base picture of the wireless charger of this model is not found, go to step S508, and determine the picture of the wireless charging receiving coil of the electronic device as the charging alignment picture and display it on the charging on the prompt interface.
  • the electronic device after searching the local memory and failing to find the picture of the charging base of the wireless charger of the model, the electronic device can further search the cloud database to see if there is a charging base of the wireless charger of the model pictures; or the electronic device can directly search the cloud database to see if there is a picture of the charging base of the wireless charger of this model without searching for the machine.
  • Step S507 The electronic device determines the type of the wireless charger of the model, and the type of the wireless charger may be a horizontal wireless charger or a vertical wireless charger. If it is a horizontal wireless charger, go to step S509 , if it is a vertical wireless charger, go to step 510 . Specifically, the electronic device can determine whether the wireless charger is a vertical wireless charger according to the received model of the wireless charger. If the name of the wireless charger corresponding to the model includes vertical, it is determined as a vertical wireless charger. Otherwise, it is judged as a horizontal wireless charger.
  • Step S508 The electronic device displays a picture of the wireless charging receiving coil of the electronic device on the charging prompt interface of the screen.
  • the center position of the picture of the wireless charging receiving coil coincides with the center position of the wireless charging receiving coil of the electronic device.
  • the position coordinates of the center of the picture of the wireless charging receiving coil can be adjusted by the processor to the position on the screen surface corresponding to the center position of the wireless charging receiving coil set inside the electronic device. That is to say, for the wireless charger whose model cannot be identified, the picture of the wireless charging receiving coil of the electronic device can be used as the charging alignment picture, for example, it can be as shown in FIG. A picture of the wireless charging receiver coil 100 .
  • the charging prompt interface can not only display the charging alignment picture, but also display information such as charging status, charging power, charging rate, etc. For example, as shown in FIG.
  • the type of information displayed on the prompt interface is not limited.
  • Step S509 For the horizontal wireless charger, display at least a part of the picture of the charging base on the screen of the electronic device. Wherein, at least a part of the picture of the charging base can be used as the picture of charging alignment, as illustrated in FIG. 2A and FIG. 2B in the above-mentioned embodiment.
  • the processor can first read the picture of the charging base of the corresponding type of wireless charger, the screen resolution of the electronic device and the wireless charging receiving coil from the internal memory. Center location coordinates and other information.
  • the position coordinates of the center of the wireless charging receiving coil refer to the position coordinates of the center of the wireless charging receiving coil on the screen surface of the electronic device. The position coordinates are determined based on the pixels of the electronic device screen and stored in the internal memory in advance.
  • the processor draws the geometric center of the wireless charging transmitting coil in the picture of the charging base at the center of the wireless charging receiving coil, and the center of the wireless charging receiving coil
  • the processor calculates the overlapping part of the screen of the electronic device and the picture of the charging base, specifically, taking the intersection of the picture of the charging base and the screen of the electronic device to obtain the coordinates of the intersection, and then connecting the edge coordinates in the coordinates of the intersection to obtain the coincidence. part of the graphics.
  • the processor saves the overlapping graphics as a graphics buffer, sends the graphics buffer to the graphics display system of the electronic device, and then puts it into the hardware buffer frame/area after processing.
  • the hardware buffer frame/area is an area in the phone's memory.
  • the content displayed on the screen is read from the hardware buffer frame.
  • the general process is to start from the starting address of the buffer, scan the entire buffer from top to bottom, and from left to right, and map the content to the screen. In this way, the charging alignment picture can be displayed on the screen of the electronic device. As shown in FIG. 6C , the overlapping part of the screen of the electronic device and the picture of the charging base is the picture 200 of charging alignment.
  • Step S510 For the vertical wireless charger, the electronic device determines whether its posture is placed vertically or horizontally. For vertical placement and horizontal placement, correspondingly display the charging alignment picture on the screen of the electronic device. For pictures of charging alignment when the electronic device is placed vertically and horizontally, reference may be made to the descriptions in FIGS. 2G-2K in the above embodiment.
  • whether the posture of the electronic device is placed vertically or horizontally may be determined by an acceleration sensor, as follows:
  • the electronic device After the electronic device detects the PING signal sent by the wireless charger, it obtains the output data of the acceleration sensor:
  • the pitch value refers to the pitch angle formed by the electronic device rotating around the x-axis
  • the roll value refers to the roll angle formed by the electronic device rotating around the z-axis.
  • pitch -asin(y/sqrt(x ⁇ 2+y ⁇ 2+z ⁇ 2))/pi*180.
  • pi is the pi.
  • pitch:[-5,5]roll:[-5,5] the electronic device is placed horizontally (the electronic device is placed symmetrically on the wireless charger).
  • pitch:[-70,-50]roll:[-5,5] the electronic device is placed vertically.
  • pitch[50,70]roll:[-5,5] the electronic device is placed vertically upside down.
  • pitch:[-5,5]roll:[-70,-50] the electronic device is placed horizontally to the right (the position of the electronic device placed on the wireless charger is biased to the right side of the wireless charger, that is, the position of the electronic device is placed on the right side of the wireless charger. top to the right).
  • pitch:[-5,5]roll:[50,70] the electronic device is placed horizontally to the left (the position of the electronic device placed on the wireless charger is deviated to the left of the wireless charger, that is, the top of the electronic device is facing left).
  • the processor may first read the picture of the charging base of the wireless charger from the internal memory. And the coordinates of the center position of the wireless charging transmitting coil of the picture of the charging base (that is, the geometric center of the wireless charging transmitting coil) are determined in units of pixels.
  • the processor determines the coordinates of the center position of the wireless charging receiving coil of the electronic device in pixels, and moves the center position of the wireless charging transmitting coil in the picture of the charging base (for example, the coordinates of the center position are (600, 900)) to the wireless charging
  • the center position of the receiving coil (for example, the coordinates of the center position are (600, 800)), that is, the coordinates (600, 900) of the center position of the picture of the charging base are changed to the coordinates (600, 800) of the center position of the wireless charging receiving coil. , that is, draw the geometric center of the wireless charging transmitting coil in the picture of the charging base at the center of the wireless charging receiving coil.
  • the picture of the charging base does not need to be rotated, so that the two vertical sides of the wireless charger in the picture of the charging base are parallel to the two vertical sides of the screen of the electronic device.
  • the picture of the charging base is rotated 90 degrees, so that the two vertical sides of the wireless charger in the picture of the charging base are perpendicular to the vertical sides of the mobile phone screen. Then the electronic device calculates the coordinates of the overlapping part of the screen of the electronic device and the wireless charging base of the wireless charger, and then cuts out the overlapping part of the screen of the electronic device and the picture of the charging base of the wireless charger, and displays it as a charging alignment picture in on the screen.
  • the size of the picture of the charging base corresponds to the size of the wireless charger, and the electronic device displays the picture of the charging base in the same size.
  • the electronic device cuts the overlapping part of the screen of the electronic device and the picture of the charging base of the wireless charger to the wireless charging base in the above-mentioned manner as the charging alignment picture displayed in the on the screen.
  • the picture of the wireless charging base does not exceed the screen size of the electronic device, the picture of the wireless charging base is completely displayed on the screen of the electronic device and displayed on the screen as a charging alignment picture.
  • a wireless charging alignment detection method by displaying a charging alignment picture on the screen of the electronic device, when the wireless charging base and the electronic device are not accurately aligned, that is, the electronic device is not in the wireless charging base
  • the best charging position of the wireless charger prompts the user to adjust the position of the electronic device on the charging base of the wireless charger, so as to realize that the electronic device is in the best charging position of the wireless charger.
  • the charging rate of the electronic device is fast, which improves the charging rate of the electronic device by the wireless charger.
  • FIG. 7 is a schematic structural diagram of an electronic device disclosed in an embodiment of the present application.
  • controller hub 804 communicates with the processor 801 via a multidrop bus such as a front side bus (FSB), a point-to-point interface such as a Quick Path Interconnect (QPI), or a similar connection.
  • Processor 801 executes instructions that control general types of data processing operations.
  • controller hub 804 includes, but is not limited to, a graphics memory controller hub (GMCH) (not shown) and an input/output hub (IOH) (which may be on separate chips) (not shown), wherein the GMCH includes a memory and a graphics controller and is coupled to the IOH.
  • GMCH graphics memory controller hub
  • IOH input/output hub
  • Electronic device 800 may also include a coprocessor 806 and memory 802 coupled to controller hub 804 .
  • the memory 802 and the GMCH may be integrated within the processor 801 (as described in this application), with the memory 802 and coprocessor 806 coupled directly to the processor 801 and to the controller hub 804, which controls The device hub 804 is in a single chip with the IOH.
  • memory 802 may be, for example, dynamic random access memory (DRAM), phase change memory (PCM), or a combination of the two.
  • Memory 802 may include one or more tangible, non-transitory computer-readable media for storing data and/or instructions.
  • the computer-readable storage medium stores instructions, in particular temporary and permanent copies of the instructions.
  • coprocessor 806 is a special-purpose processor, such as, for example, a high-throughput MIC processor, a network or communications processor, a compression engine, a graphics processor, a GPU, an embedded processor, or the like. Optional properties of the coprocessor 806 are shown in Figure 7 by dashed lines.
  • the electronic device 800 may further include a network interface (NIC) 803 .
  • Network interface 803 may include a transceiver for providing a radio interface for device 800 to communicate with any other suitable device (eg, front-end modules, antennas, etc.).
  • network interface 803 may be integrated with other components of electronic device 800 .
  • the network interface 803 can realize the function of the communication unit in the above-mentioned embodiment.
  • the electronic device 800 may further include an input/output (I/O) device 805 .
  • I/O device 805 may include: a user interface designed to enable a user to interact with electronic device 800; a peripheral component interface designed to enable peripheral components to also interact with electronic device 800; and/or a sensor designed to interact with electronic device 800. for determining environmental conditions and/or location information related to the electronic device 800 .
  • Figure 7 is exemplary only. That is, although FIG. 7 shows that the electronic device 800 includes multiple devices such as the processor 801, the controller center 804, the memory 802, etc., in practical applications, the device using each method of the present application may only include the electronic device 800 Some of the devices, for example, may include only the processor 801 and the NIC 803 . The properties of the optional device in Figure 7 are shown in dashed lines.
  • the instructions stored in the computer-readable storage medium of the electronic device 800 may include: when executed by at least one unit in the processor, causing the device to implement the wireless charging alignment mentioned in the above embodiments Instructions for detection methods.
  • the instruction is executed on the computer, the computer is made to execute the above-mentioned method for detecting the alignment of wireless charging as mentioned in the above embodiments.
  • FIG. 8 is a schematic structural diagram of an SoC disclosed in an embodiment of the present application, and shows a block diagram of an exemplary SoC (System on Chip, system on chip) 900 according to an embodiment of the present application.
  • SoC System on Chip, system on chip
  • similar components have the same reference numerals.
  • the dotted box is an optional feature of more advanced SoCs.
  • the SoC can be used in an electronic device according to an embodiment of the present application, and can implement corresponding functions according to instructions stored in the SoC.
  • SoC 900 includes: interconnect unit 1002 coupled to processor 1001 ; system proxy unit 1006 ; bus controller unit 1005 ; integrated memory controller unit 1003 ; one or more coprocessors 1007 , which may include integrated graphics logic, image processors, audio processors, and video processors; static random access memory (SRAM) unit 1008 ; direct memory access (DMA) unit 1004 .
  • the coprocessor 1007 comprises a special purpose processor such as, for example, a network or communications processor, a compression engine, a GPU, a high throughput MIC processor, an embedded processor, or the like.
  • Static random access memory (SRAM) unit 1008 may include one or more computer-readable media for storing data and/or instructions.
  • the computer-readable storage medium may have instructions stored thereon, in particular, temporary and permanent copies of the instructions.
  • the instructions stored in the computer-readable storage medium may include: when executed by at least one unit in the processor, causing the electronic device to implement the wireless charging as mentioned in the above embodiments Instructions for the detection method of the bit alignment.
  • the instruction is executed on the computer, the computer is made to execute the above-mentioned method for detecting the alignment of wireless charging as mentioned in the above embodiments.
  • an embodiment of the present application also discloses a computer-readable storage medium, where a processing program is stored on the computer-readable storage medium, and when the processing program is executed by the processor, the method for detecting the alignment of wireless charging mentioned in the above embodiment is implemented .
  • the computer-readable storage medium may be a read-only memory, a random-access memory, a hard disk, an optical disk, or the like.

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Abstract

本申请涉及无线充电技术领域，公开了一种无线充电对位检测方法及电子设备，通过在电子设备的屏幕上展示充电对位图片，可以在无线充电底座和电子设备未准确对位时，即电子设备未处于无线充电底座的较佳充电位置，提示用户调整电子设备在无线充电器的充电底座上的位置，从而实现电子设备处于无线充电器的较佳充电位置，在电子设备处于无线充电器的较佳充电位置时，电子设备的充电速率较快，提高了无线充电器对电子设备的充电速率。

Description

一种无线充电对位检测方法及电子设备
本申请要求于2021年04月07日提交中国专利局、申请号为202110374407.0、申请名称为“一种无线充电对位检测方法及电子设备”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及无线充电技术领域，尤其涉及一种无线充电对位检测方法及电子设备。
背景技术
随着无线充电技术的不断发展，无线充电技术被应用于为电子设备进行无线充电。无线充电也称为感应式充电，其主要优点是方便且不受线的束缚，只要将电子设备放置于无线充电器的充电底座上便可以自动进行充电。目前常采用的是基于Qi标准的无线充电技术，基于Qi标准的无线充电技术要求电子设备的无线充电接收线圈和无线充电器的无线充电发射线圈在一定的距离范围内，接收线圈和发射线圈之间的距离过大时，会导致充电速率下降甚至无法充电。电子设备放置于无线充电器的充电底座上进行充电时，仅在电子设备的显示屏上显示正在充电以及电子设备的当前电量的图标。用户无法得知电子设备是否和无线充电底座良好对位。如此，在无线充电底座和电子设备未良好对位时，导致电子设备的充电速率低。
发明内容
本申请的目的在于提供一种无线充电对位检测方法及电子设备，实现了无线充电底座和电子设备良好对位的效果，提高了电子设备的充电速率。
第一方面，本申请实施例公开了一种无线充电对位检测方法，应用于电子设备，电子设备与无线充电器可进行通信交互，无线充电对位检测方法包括：
接收无线充电器发送的设备信息数据。其中，设备信息数据包括但不限于无线充电器的厂商编号、无线充电器型号标识等。无线充电器的类型可以包括卧式无线充电器和立式无线充电器。对于每一种类型的无线充电器，都具有对应的型号。
根据设备信息数据确定充电对位图片。其中，按照是否能从电子设备的存储器中查找到该型号的充电底座图片，将电子设备分为两种类型，第一种类型是能搜索到该型号的无线充电器的充电底座图片。第二种类型是不能搜索到该型号的无线充电器的充电底座图片。对于第一种类型，电子设备上显示的充电对位图片中可以包含无线充电器的无线充电底座的至少一部分的真实产品图片，该图片是无线充电器的充电底座图片与电子设备的屏幕重合的部分。该图片被显示为似乎是用户透过电子设备的边框可以看到的该充电器的底座的样式。对于第二种类型，电子设备上显示的充电对位图片可以是电子设备自身的无线充电接收线圈。
显示充电提示界面，充电提示界面包括充电对位图片，用于提示或指示电子设备是否放置于无线充电器的较佳充电位置。其中，对于上述的第一种类型，电子设备上显示的无线充电底座的图片的边沿与无线充电器的边沿对齐时，电子设备的无线充电接收线圈的中心、充电对位图片上的无线充电发射线圈的中心以及实际的无线充电器的无线充电发射线圈的中心三者重合。用户可以确定电子设备放置的位置处于无线充电器上的较佳的充电位置，此时电子设备的无线充电接收线圈与无线充电器的无 线充电发射线圈呈现准确对位的状态，即电子设备与无线充电器之间处于准确对位的状态。对于上述的第二种类型，该电子设备的无线充电接收线圈的图片示出电子设备的充电线圈在电子设备中的位置。如果图片示出的线圈中的大部分或全部位于无线充电底座之外的区域，则用户可以确定电子设备放置的位置并非处于无线充电器上较佳的充电位置，此时电子设备的无线充电接收线圈与无线充电器的无线充电发射线圈呈现未准确对位的状态，即电子设备与无线充电器之间处于未准确对位的状态。用户可以根据图片示出的线圈位置移动电子设备至无线充电器的充电底座上较佳的充电位置，以使电子设备的无线充电接收线圈与无线充电器的无线充电发射线圈呈现准确对位的状态，即电子设备与无线充电器之间处于准确对位的状态。
进一步的，电子设备放置于无线充电器的充电底座的较佳充电位置后，使得电子设备的无线充电接收线圈与无线充电器的无线充电发射线圈呈现准确对位的状态。准确对位的状态可以指的是电子设备的无线充电接收线圈的中心位置和无线充电器的无线充电发射线圈的中心位置之间的距离比较接近。具体而言，可以设定第一阈值以确定电子设备和无线充电器之间是否准确对位。
其中，第一阈值可以自定义设置，可以是单个具体的数值。举例来说，以无线充电器向电子设备充电的充电功率达到该无线充电器最大充电功率的50％时二者中心位置之间的距离作为第一阈值，例如，该无线充电器以最大充电功率的50％为该手机充电时二者线圈的中心位置之间的距离为10mm，则在用户将手机放置于无线充电器上之后线圈的中心位置之间的距离小于等于10mm的情况下，例如5mm，手机与无线充电器之间处于准确对位的状态；反之，在用户将手机放置于无线充电器上之后线圈的中心位置之间的距离大于10mm的情况下，例如12mm，手机与无线充电器之间处于未准确对位的状态。本申请实施例中对于第一阈值具体的取值并不作限定。
通过本申请第一方面公开的一种无线充电对位检测方法，通过在电子设备的屏幕上展示充电对位图片，本申请提供的技术方案便于直观地引导用户将电子设备放置于无线充电器的充电底座的较佳充电位置，使得电子设备的无线充电接收线圈的中心位置和无线充电器的无线充电发射线圈的中心位置之间的距离小于第一阈值。如此，在无线充电器的充电底座和电子设备未准确对位时，可以提示用户调整电子设备在无线充电器的无线充电底座上的位置实现电子设备和无线充电器的无线充电底座之间准确对位。本申请提供的技术方案提高了无线充电器对电子设备进行充电的充电速率。
根据本申请第一方面公开的一些实施例，根据设备信息数据确定充电对位图片，具体包括：
根据设备信息数据，确定无线充电器的型号。
按照无线充电器的型号，搜索电子设备中是否存储对应型号的充电底座图片。
如果搜索结果是电子设备存储有对应型号的充电底座图片，则将充电底座图片的至少一部分确定为充电对位图片。
如果搜索结果是电子设备没有存储对应型号的充电底座图片，则将电子设备的无线充电接收线圈的图片确定为充电对位图片。
通过本申请公开的上述实施例，在电子设备能搜索到该型号的无线充电器的充电底座图片时，则至少显示充电底座图片的一部分作为充电对位图片以提示用户将电子设备放置于无线充电底座的较佳充电位置。在电子设备不能搜索到该型号的无线充电器的充电底座图片时，还能显示电子设备的无线充电接收线圈以提示用户将电子设备放置于无线充电底座的较佳充电位置。避免了电子设备搜索不到该型号的无线充电器的充电底座图片时，不能实现电子设备放置于无线充电器的较佳充电位置的问题，提高了电子设备和无线充电器之间的对位成功率。
根据本申请第一方面公开的一些实施例，无线充电对位检测方法还包括：
根据无线充电器的型号判断无线充电器的类型，无线充电器的类型包括卧式充电器和立式充电器。
若判断结果是无线充电器的类型为卧式充电器，则显示充电提示界面，具体包括：
将卧式充电器的充电底座图片中的无线充电发射线圈的几何中心绘制在电子设备的屏幕上与无线充电接收线圈的中心对应的位置，并将充电底座图片与电子设备的屏幕的重合部分作为充电对位图片显示在充电提示界面上。
通过本申请公开的以上实施例，将卧式充电器的充电底座图片中的无线充电发射线圈的几何中心绘制在电子设备的屏幕上与无线充电接收线圈的中心对应的位置，然后再将充电底座图片与电子屏幕的屏幕重合部分作为充电对位图片显示在充电提示界面上。如此，在电子设备的屏幕上显示的充电对位图片与卧式充电器的边沿重合时，卧式充电器实际的无线充电发射线圈的中心、电子设备的无线充电接收线圈的中心以及电子设备屏幕上显示的充电对位图片的无线充电发射线圈的中心三者基本重合，无线充电器为电子设备进行充电的充电效率较高。
根据本申请第一方面公开的一些实施例，无线充电对位检测方法还包括：
根据无线充电器的型号判断无线充电器的类型，无线充电器的类型包括卧式充电器和立式充电器。
若判断结果是无线充电器的类型为立式充电器，则显示充电提示界面具体包括：
判断电子设备的姿态，电子设备的姿态包括竖直放置状态和水平放置状态。
根据电子设备的姿态，将立式充电器的充电底座图片的无线充电发射线圈的几何中心绘制在电子设备的屏幕上与无线充电接收线圈的中心对应的位置，并将充电底座图片与电子设备的屏幕的重合部分作为充电对位图片显示在充电提示界面上。
通过本申请公开的以上实施例，将立式充电器的充电底座图片中的无线充电发射线圈的几何中心绘制在电子设备的屏幕上与无线充电接收线圈的中心对应的位置，然后再将充电底座图片与电子屏幕的屏幕重合部分作为充电对位图片显示在充电提示界面上。如此，在电子设备的屏幕上显示的充电对位图片与立式充电器的边沿重合时，立式充电器实际的无线充电发射线圈的中心、电子设备的无线充电接收线圈的中心以及电子设备屏幕上显示的充电对位图片的无线充电发射线圈的中心三者基本重合，无线充电器为电子设备进行充电的充电效率较高。
根据本申请第一方面公开的一些实施例，与无线充电接收线圈的中心对应的位置是无线充电接收线圈的中心在电子设备的屏幕表面上的位置，该位置根据电子设备的屏幕的像素而确定。例如，电子设备的屏幕分辨率为2640*1200，以电子设备宽度所在的方向为x轴，电子设备高度所在的方向为y轴，以电子设备左下角为原点，电子设备宽度方向的像素点为1200，电子设备高度方向的像素点为2640。则无线充电接收线圈的中心对应于x轴和y轴的中心位置的坐标则为(600，800)。
通过本申请以上公开的一些实施例，电子设备的屏幕分辨率是一定的，该屏幕分辨率的每个像素点所在的位置的坐标是唯一确定的。因此，以电子设备的像素点确定无线充电接收线圈的中心的位置，其准确率以及唯一性较高。
根据本申请第一方面公开的一些实施例，电子设备放置于无线充电器的较佳充电位置时，电子设备的屏幕上显示的充电速率高于预设值。
当电子设备未放置于无线充电器的较佳充电位置时，电子设备的屏幕上显示的充电速率低于预设值。具体的，用户可以通过电子设备上显示的充电速率的值的大小进一步判断电子设备和无线充电器是否良好对位。例如，无线充电器的最大充电速率为17W，无线充电器和电子设备良好对位时充电速 率的最低的预设值为13W。此时，电子设备的屏幕上显示的充电速率121为15W。其大于预设值13W，说明此时电子设备和无线充电器良好对位。
通过本申请以上公开的一些实施例，在电子设备的屏幕上可以显示充电速率，用户可以通过电子设备的屏幕查看该充电速率。并通过该充电速率与预设值的相对大小，判断出电子设备是否处于无线充电器的较佳充电位置上。如此，可以同时通过在基于充电对位图片确定电子设备是否处于无线充电器的较佳充电位置上，和通过充电速率与预设值的相对大小确定电子设备是否处于无线充电器的较佳充电位置上。提高了电子设备和无线充电器之间进行良好对位的精确度。
根据本申请第一方面公开的一些实施例，充电提示界面包括第一标识，第一标识用于指示电子设备内部的无线充电接收线圈的中心位置。其中，第一标识可以为显示在电子设备屏幕上的十字光标，该十字光标可以对无线充电接收线圈的中心位置进行提示。
通过本申请公开的以上实施例，通过第一标识对电子设备的无线充电接收线圈的中心位置进行标识，从而便于用户查看电子设备的无线充电接收线圈的中心位置。提示用户对电子设备和无线充电器进行良好的对位。
根据本申请第一方面公开的一些实施例，充电提示界面还包括电子设备当前的电量、充电时间、充电速率和充电状态中的至少一者。
通过本申请以上公开的一些实施例，在电子设备的屏幕上可以显示充电速率，用户可以通过电子设备的屏幕查看该充电速率。并通过该充电速率与预设值的相对大小，判断出电子设备是否处于无线充电器的较佳充电位置上。如此，可以同时通过在基于充电对位图片确定电子设备是否处于无线充电器的较佳充电位置上，和通过充电速率与预设值的相对大小确定电子设备是否处于无线充电器的较佳充电位置上。提高了电子设备和无线充电器之间进行良好对位的精确度。此外，通过在充电提示界面显示设备当前电量、充电时间以及充电状态等，可以便于用户了解当前电子设备的详细信息，提升了用户体验感。
根据本申请第一方面公开的一些实施例，充电对位检测方法还包括：
将充电对位图片进行存储。具体的，可以将充电对位图片存储于电子设备的存储器中，或者也可以将充电对位图片存储于电子设备的云端服务器中。
通过本申请以上公开的一些实施例，在电子设备完成与无线充电器的对位过程之后，可以由电子设备将充电对位图片存储于电子设备的存储器中。在用户下次采用同型号的该无线充电器为同部电子设备充电时，可以由电子设备直接从存储器中查找该充电对位图片并显示在电子设备的屏幕上。提升了电子设备和无线充电器之间的对位效率。
根据本申请第一方面公开的一些实施例，在接收无线充电器发送的设备信息数据之前，无线对位检测方法还包括：
电子设备向无线充电器发送私有协议。其中，私有协议可以是基于标准的Qi协议外，由厂商自己在Qi标准协议的规定字段内进行的自定义通信包，其中，自定义通信包指的是由Qi标准协议的规定字段0x18内定义的无线充电器的型号。例如，标准的Qi协议里面规定的数据包头为01时，则01代表的字段是信号强度包，标准的Qi协议里面规定的数据包头为0x18时，则0x18代表的字段是专用数据包，该专用数据包可以包括无线充电器的型号。
设备信息数据为无线充电器响应于私有协议，向电子设备发送的设备信息数据。
通过本申请以上公开的一些实施例，电子设备和无线充电器通过私有协议传输设备信息数据，避 免了设备信息数据被盗取以及篡改，保证了设备信息数据的安全性。
根据本申请第一方面公开的一些实施例，电子设备向无线充电器发送私有协议，包括：
响应于无线充电器发送的通信信号，电子设备向无线充电器发送私有协议，其中，通信信号为PING信号。
其中，无线充电器向电子设备发送PING信号。其中，无线充电器作为发送端，可以周期性的发送PING信号，例如每间隔500毫秒发送一次信号。通常情况下每次发送端发送PING信号的持续时长为90毫秒。该PING信号的发射频率通常在100KHz至205KHz之间。电子设备接收到PING信号后向无线充电器返回信号强度包。电子设备作为接收端，响应于所接收到的PING信号，接收端向无线充电器返回信号强度包，所述信号强度包用来向无线充电器指示有接收端放在了其充电底座上。其中，信号强度包中包含了电子设备接收到的PING信号的信号强度等信息。
通过本申请以上公开的实施例，电子设备通过接收到的PING信号的信号强度，将该信号强度反馈至无线充电器，基于信号强度值的大小无线充电器便可以知晓电子设备是否放置于无线充电器上。此外，PING信号的发射频率通常在100KHz至205KHz之间，基本可以实时测试无线充电器和电子设备之间的放置位置，实时性好。
第二方面，本申请实施例公开了一种电子设备，包括：
存储器，存储器存储有代码。
处理器，处理器在执行代码时实现如以上任意一种提到的无线充电对位检测方法。
通过本申请第二方面公开的一种电子设备，通过在电子设备的屏幕上展示充电对位图片，本申请提供的技术方案便于直观地引导用户将电子设备放置于无线充电器的充电底座的较佳充电位置，使得电子设备的无线充电接收线圈的中心位置和无线充电器的无线充电发射线圈的中心位置之间的距离小于第一阈值。如此，在无线充电器的充电底座和电子设备未准确对位时，可以提示用户调整电子设备在无线充电器的无线充电底座上的位置实现电子设备和无线充电器的无线充电底座之间准确对位。本申请提供的技术方案提高了无线充电器对电子设备进行充电的充电速率。
本申请其他特征和相应的有益效果在说明书的后面部分进行阐述说明，且应当理解，至少部分有益效果从本申请说明书中的记载变的显而易见。
附图说明
图1A和图1B分别为适用于本申请实施例公开的一种无线充电对位检测方法的卧式无线充电器的外形示意图和立式无线充电器的外形示意图；
图2A至图2F为本申请实施例示出的类型一中的卧式无线充电器的充电对位示意图；
图2G至图2M为本申请实施例示出的类型一中的立式无线充电器的充电对位示意图；
图3A至图3H为本申请实施例示出的类型二中的无线充电器的充电对位示意图；
图4A至图4E为本申请实施例示出的无线充电器的示意图；
图5A为本申请实施例提供的一种手机的结构示意图；
图5B为本申请实施例提供的一种手机的软件结构框图；
图6A为本申请实施例提供的一种电子设备和无线充电器的通信时序图；
图6B为本申请实施例提供的电子设备显示充电提示界面的具体实现的流程示意图；
图6C为本申请实施例提供的电子设备的屏幕和充电底座图片的重合部分的示意图；
图7示例性示出了本申请实施例公开的一种电子设备的结构示意图；
图8示例性示出了本申请实施例公开的一种SOC的结构示意图。
具体实施方式
本申请实施例提供一种无线充电对位检测方法，该方法可以应用于手机、笔记本电脑、虚拟现实设备、增强现实技术车载设备或智能可穿戴设备等电子设备。该电子设备至少设置有显示屏、输入设备和处理器。
电子设备放置于无线充电器后，无线充电器为电子设备充电，无线充电器和电子设备之间可以进行通信交互。
以下以手机作为电子设备10的示例进行解释。手机10可以被放置于无线充电器20进行充电。无线充电器20通过无线充电方式为手机10充电。根据本申请的实施例的技术方案适用于构造上不同类型的无线充电器。
对于无线充电器20而言，按其类型可以分为立式无线充电器和卧式无线充电器。图1A和图1B分别为适用于本申请实施例公开的一种无线充电对位检测方法的卧式无线充电器的外形示意图和立式无线充电器的外形示意图。卧式无线充电器指的是无线充电底座平放，以手机10平放在无线充电底座上的方式进行充电的无线充电器。立式无线充电器指的是以手机10立放在无线充电底座上的方式进行充电的无线充电器。
对于上述的手机10和无线充电器20，本申请实施例提供一种无线对位检测方法，通过在手机10的屏幕上显示充电提示界面，提示用户将手机10放置在无线充电器的较佳充电位置，以使得手机10的无线充电接收线圈和无线充电器20的无线充电发射线圈尽可能靠近甚至重合。
充电提示界面上至少显示手机10和无线充电器20的充电对位图片。该充电对位图片能指示无线充电器20的无线充电发射线圈的位置。用户可以使得手机10上展示的充电底座的图片的边沿和无线充电器20的充电底座的边沿对齐，或者无线充电器的充电底座的图片的中心和无线充电器20的充电底座的中心对齐，从而引导用户将手机10放置于无线充电器20的充电底座的较佳充电位置。
手机10放置于无线充电器20的充电底座的较佳充电位置后，使得手机10的无线充电接收线圈与无线充电器20的无线充电发射线圈呈现准确对位的状态。准确对位的状态可以指的是手机10的无线充电接收线圈的中心位置和无线充电器20的无线充电发射线圈的中心位置之间的距离比较接近。具体而言，可以设定第一阈值以确定手机10和无线充电器20之间是否准确对位。
其中，第一阈值可以自定义设置，可以是单个具体的数值。举例来说，以无线充电器20向手机10充电的充电功率达到该无线充电器最大充电功率的50％时二者中心位置之间的距离作为第一阈值，例如，该无线充电器以最大充电功率的50％为该手机充电时二者线圈的中心位置之间的距离为10mm，则在用户将手机放置于无线充电器上之后线圈的中心位置之间的距离小于等于10mm的情况下，例如5mm，手机与无线充电器之间处于准确对位的状态；反之，在用户将手机放置于无线充电器上之后线圈的中心位置之间的距离大于10mm的情况下，例如12mm，手机与无线充电器之间处于未准确对位的状态。本申请实施例中对于第一阈值具体的取值并不作限定。
关于本申请的充电对位图片，根据无线充电器的类别，显示的状态有差别。以下结合附图详细说明。
首先，对于每一种类型的无线充电器，都具有对应的型号，例如，华为超级快充立式无线充电器 (Max 40W)CP62或者华为超级快充无线充电器(Max 27W)CP61等。这里的型号指的是能够唯一地识别出该无线充电器产品的编号，可以由文字和/或数字构成。对于有的无线充电器20，手机10可以识别出型号的无线充电器20，本申请中将此类电子设备能够识别出其型号的充电器称之为类型一。对于类型一的充电器，手机10内部预先存储有该型号的无线充电器20的充电底座的图片，或者手机10通过访问手机的服务器或云端数据库能够获得该无线充电器20的充电底座的图片。对于有的无线充电器20，手机10不能识别出其具体的型号，本申请中将此类电子设备不能够识别出其型号的充电器称之为类型二。
其中，手机10可以基于无线充电器20传输的设备信息数据确定无线充电器的型号。其中，无线充电器20和手机10之间可以基于Qi标准传输设备信息数据。设备信息数据包括但不限于无线充电器的厂商编号、无线充电器型号标识等。
充电对位图片用来指示用户将手机10放置于无线充电器20的充电底座的较佳充电位置。对于类型一和类型二的充电器，根据本申请的实施例，手机10中显示的充电对位图片的表现形式可以不相同。
对于类型一的充电器，手机10上显示的充电对位图片中可以包含无线充电器的无线充电底座的至少一部分的真实产品图片，该图片是无线充电器的充电底座图片与手机10的屏幕重合的部分。该图片被显示为似乎是用户透过手机的边框可以看到的该充电器的底座的样式。如此，当手机10上显示的无线充电底座的图片的边沿与无线充电器的边沿对齐时，手机10的无线充电接收线圈的中心、充电对位图片上的无线充电发射线圈的中心以及实际的无线充电器的无线充电发射线圈的中心三者重合。用户可以确定手机10放置的位置处于无线充电器20上的较佳的充电位置，此时手机10的无线充电接收线圈与无线充电器20的无线充电发射线圈呈现准确对位的状态，即手机10与无线充电器20之间处于准确对位的状态。当手机10未放置于无线充电器20的充电底座的较佳充电位置时，手机10上展示的无线充电器的充电底座的图片的边沿和无线充电器20的充电底座的边沿偏位，用户可以确定手机10放置的位置并未处于无线充电器20上较佳的充电位置，此时手机10的无线充电接收线圈与无线充电器20的无线充电发射线圈呈现未准确对位的状态(无线充电接收线圈的中心位置与无线充电发射线圈的中心位置之间的距离超出第一阈值)，即手机10与无线充电器20之间处于未准确对位的状态。
对于类型二的充电器，手机10上因未能识别出该充电器的具体型号，因此以手机的无线充电接收线圈的图片作为充电对位图片来显示。该手机的充电线圈的图片示出手机的充电线圈在手机中的位置。如果图片示出的线圈中的大部分或全部位于无线充电底座之外的区域，则用户可以确定手机10放置的位置并非处于无线充电器20上较佳的充电位置，此时手机10的无线充电接收线圈与无线充电器20的无线充电发射线圈呈现未准确对位的状态，即手机10与无线充电器20之间处于未准确对位的状态。用户可以根据图片示出的线圈位置移动手机10至无线充电器20的充电底座上较佳的充电位置，以使手机10的无线充电接收线圈与无线充电器20的无线充电发射线圈呈现准确对位的状态，即手机10与无线充电器20之间处于准确对位的状态。
如此，通过在手机10的屏幕上展示充电对位图片，本申请提供的技术方案便于直观地引导用户将手机10放置于无线充电器20的充电底座的较佳充电位置，使得手机10的无线充电接收线圈的中心位置和无线充电器20的无线充电发射线圈的中心位置之间的距离小于第一阈值。如此，在无线充电器20的充电底座和手机10未准确对位时，可以提示用户调整手机10在无线充电器的无线充电底 座上的位置实现手机10和无线充电器20的无线充电底座之间准确对位。本申请提供的技术方案提高了无线充电器对手机10进行充电的充电速率。
以下结合附图，说明对于类型一的卧式无线充电器，在电子设备中显示的充电对位图片的情况。
图2A和图2B示出了卧式无线充电器的充电对位图片，如图2A所示的，手机10的屏幕上展示充电对位图片(为清楚展示充电对位图片，图2A中仅示出手机10)。该图片被显示为用户通过手机的屏幕可以看到的该充电器的底座的样式。充电对位图片200展示的是对应型号的无线充电器的充电底座图片一部分或全部(图2A示例性地示出了对应型号的无线充电器的充电底座图片的一部分)。对于充电对位图片200而言，在本申请的一些实施例中，针对卧式无线充电器，如图2B，手机10以最佳的方式放置于卧式无线充电器的无线充电底座上时，手机10上显示充电对位图片200。如图2B所示意的，卧式无线充电器的充电底座的无线充电发射线圈的中心2000位于充电对位图片200的中心位置，手机10的无线充电接收线圈的中心1000与充电底座的无线充电发射线圈的中心2000位置基本重合，在手机10处于无线充电底座的较佳充电位置时，充电对位图片200的无线充电发射线圈的中心以及手机10内部的无线充电接收线圈的中心以及实际的无线充电底座的无线发射线圈的中心三者基本是重合的，从而保证手机10和无线充电底座的良好对位。值得注意的是，图2B中的无线充电发射线圈的中心2000以及无线充电接收线圈的中心1000可以显示在手机10的屏幕上以供用户观测。为了保证手机10屏幕上显示信息的简洁性，本申请实施例中无线充电发射线圈的中心2000以及无线充电接收线圈的中心1000可以被选择不显示在手机10的屏幕上(本申请实施例以虚线圆圈示例性的表示无线充电发射线圈的中心2000以及无线充电接收线圈的中心1000所在的位置)。
因此，从用户更易观测的角度，在图2B示意的无线充电发射线圈的中心1000和充电底座的无线充电发射线圈的中心2000并未展示在充电提示界面中时，用户通过观察手机10上显示的充电对位图片的边沿是否与无线充电器的边沿顺滑衔接即可确定手机10和卧式无线充电器20是否处于准确对位的状态。其中，无线充电接收线圈的中心1000和卧式无线充电器的无线充电发射线圈的中心2000之间的距离d不超过阈值便可以认为是手机10和卧式无线充电器20处于准确对位的状态。
如图2C所示的，用户俯视放置于卧式无线充电器20的手机10，充电对位图片200展示的充电底座图片的边缘与卧式无线充电器20的边缘基本上顺滑衔接，此时无线充电接收线圈的中心1000和卧式无线充电器的无线充电发射线圈的中心2000之间的距离为d，假设第一阈值为10mm，图中所示d为5mm，表明两个线圈中心之间的距离不超过第一阈值，可以确定手机10和卧式无线充电器20已经准确对位。在手机10和卧式无线充电器20处于准确对位的状态下，无线充电器为电子设备充电的充电效率较高。
在本申请的另一些实施例中，当手机10放置于无线充电器20后，但并未处于最佳位置。如图2D所示的，手机10和无线充电器20偏位。此时手机10的显示屏上显示的充电对位图片的底座边沿和无线充电器20的充电底座的边沿并未顺滑衔接。此时表明，手机10未处于卧式无线充电器20上的最佳充电位置，无线充电器20对手机10不能进行充电或者充电效率较低。
充电对位图片的边沿和无线充电器20的充电底座的边沿错开的程度越大，表明手机10偏离最佳充电位置的距离越远。在充电对位图片的提示下，用户可以根据手机10上展示的无线充电器20的充电底座的图片移动手机10使得手机10上显示的无线充电底座的图片的边沿和无线充电器20的边沿对齐(如图2E所示的)。从而完成手机10和无线充电器20的对位。
根据本申请中的一些实施例，为了便于用户查看电子设备的无线充电接收线圈的中心位置1000， 可以在手机10的屏幕上展示的充电对位图片中采用如图2F所示的标识1001(第一标识，可以为十字光标)来对无线充电接收线圈的中心位置1000进行提示。即，标识1001所在的位置即为无线充电接收线圈的中心位置1000。当然，也可以采用其他的方式来进行提示，本申请实施例在此并不作限定。
以下结合附图，说明对于类型一的立式无线充电器，在电子设备中显示的充电对位图片的情况。如图2G所示的，手机10的屏幕上展示充电对位图片(为清楚展示充电对位图片，图2A中仅示出手机10，未示出无线充电器)。该图片被显示为用户通过手机10的屏幕可以看到的该无线充电器的底座的样式。对于立式充电器而言，与卧式充电器的差异仅在于显示的图片类型不相同。
在本申请的另一些实施例中，对于立式无线充电器而言，当手机10立放在立式无线充电器上的无线充电底座上时，手机10上显示对应型号的立式无线充电器的充电对位图片200。当手机10放置于无线充电器20并完成握手后，但手机10并未处于无线充电器20的最佳充电位置。如图2H所示的，手机10和无线充电器20偏位，即手机10的显示屏上显示的无线充电器20的充电对位图片200的边沿和无线充电器20的充电底座的边沿明显错开。无线充电器20对手机10不能进行充电或者充电效率较低。
在充电对位图片的提示下，用户可以根据手机10上展示的无线充电器20的充电底座的图片向左移动手机10使得手机10上显示的无线充电底座的图片的边沿和无线充电器20的边沿大致对齐(如图2I所示的)，此时手机10处于无线充电器的较佳充电位置。充电对位图片200中的立式无线充电器的充电底座的偏下部位的无线充电发射线圈202的中心位置2000与手机10的无线充电接收线圈的中心位置1000非常接近且部分重合。完成手机10和无线充电器20的对位。无线充电器20对手机10进行充电的充电效率较高。
从用户更易观测的角度，当手机10的屏幕上显示的充电对位图片中的无线充电底座的边沿和无线充电器的边沿相重合时，手机10的无线充电接收线圈100的中心位置1000和立式无线充电器的无线充电发射线圈的中心位置2000较为接近，在两个中心之间的距离小于第一阈值时，手机10与无线充电器20准确对位，此时无线充电器为电子设备充电的充电效率较高。
另外，在一些实施例中，对于部分立式充电器而言，手机既可以以竖立式的方式(即以手机的短边向下的方式立在充电器上)在其上充电，也可以以横立式方式，即手机的其中一长边向下地状态立在充电器上。
图2J和2K所示的立式充电器包括两个无线充电发射线圈202和204(作为示例，无线充电发射线圈202和无线充电发射线圈204仅仅是示意其位置，其并不会呈现在手机10的屏幕上)，无线充电发射线圈202位于立式无线充电器的偏下部位，无线充电发射线圈204位于立式无线充电器的偏上部位，以便于用户通过竖立式和横立式两种方式均可为手机充电。当手机10横放在立式无线充电器上时，手机10借助其上的陀螺仪获取的数据检测到自身处于横置状态，相应在屏幕上横屏显示充电对位图片200。其中，手机10的无线充电接收线圈1000与充电对位图片200中的无线充电发射线圈202的中心位置2000相互重合。其中，在手机10的本地或者关联的服务器上存储有当手机10处于横置状态放置在立式充电器上时的充电器的充电底座图片。
如图2K所示，充电对位图片200示出的充电底座边沿和用户观测到的无线充电器20的充电底座的边沿相互错开较大距离，此时手机10的无线充电接收线圈的中心位置1000以及充电对位图片200中的无线充电发射线圈的中心位置2000与无线充电器的无线充电发射线圈202的中心位置之间的距 离d较大，表明手机10偏离最佳充电位置的距离较远。无线充电器的无线充电发射线圈202的中心位置与手机10的无线充电接收线圈的中心位置1000以及充电对位图片中的无线充电发射线圈的中心位置1000之间的距离d超过了第一阈值，手机10与无线充电器之间未处于准确对位的状态。例如，d为15mm，第一阈值设定为10mm。在图2K所示的充电对位图片200的提示下，用户可以移动手机10使得手机10上显示的充电对位图片200的边沿和无线充电器20的充电底座边沿对齐，使得无线充电器的无线充电发射线圈202的中心位置与手机10的无线充电接收线圈的中心位置1000以及充电对位图片中的无线充电发射线圈的中心位置1000之间的距离d小于第一阈值，实现了手机10和无线充电器20进行准确对位。
在本申请的另一些实施例中，手机10的无线充电接收线圈处于手机10上的位置可能不一定在手机10的几何中心位置。在手机10上展示的充电对位图片的位置将随着手机10的无线充电接收线圈的中心位置的变化而变化。手机10上显示的充电对位图片基本上是以手机10的无线充电接收线圈的中心位置为中心绘制和显示的。如图2L所示的，当手机10的无线充电接收线圈的中心位置1000位于手机10的偏下位置时，充电对位图片将显示在电子设备的偏下位置(图2L未显示无线充电器20)。再如图2M所示，当手机10的无线充电接收线圈的中心位置1000位于手机10的偏下位置时，充电对位图片200将横屏显示横置状态手机10的靠左侧位置，在用户将充电对位图片200的底座边沿与无线充电器20的底座边沿对齐后，手机10中充电对位图片中的无线充电器20的充电底座的无线充电发射线圈的中心位置2001也位于横置状态手机10的靠左侧位置。
值得注意的是，在手机10完成与无线充电器的对位过程之后，可以由手机10将充电对位图片存储于手机10的存储器中。在用户下次采用同型号的该无线充电器为同部手机充电时，可以由手机10直接从存储器中查找该充电对位图片并显示在手机10的屏幕上。提升了手机10和无线充电器之间的对位效率。
以下结合附图，说明对于类型二的无线充电器，在电子设备中显示充电对位图片的情况。
根据本申请示例性的一些实施例，如图3A所示的，手机的无线充电接收线圈100可以位于手机的中心位置，手机10的无线充电接收线圈100的中心位置1000处于手机10的几何中心位置。
如图3B所示的，为本申请示例性示出的一种卧式无线充电器20，卧式无线充电器为圆形，其无线充电发射线圈201位于无线充电器的中心位置。如图3C所示的，为本申请示例性示出的一种立式无线充电器20，立式无线充电器具有两个无线充电发射线圈202、204。
对于类型二中的无线充电器，无线充电器的充电对位图片为手机10的无线充电接收线圈100的图片。该图片显示手机中的无线充电接收线圈的形态，并且标识出该线圈在手机中的位置(手机内部的无线充电接收线圈映射到手机屏幕表面的位置)。如图3D所示的，当手机10放置在卧式无线充电器20上时，手机10无法识别该充电器的型号，因此在手机10的屏幕上显示充电接收线圈100的图片。图3D所示的手机10的充电接收线圈的中心位置位于手机的几何中心，提示用户将手机10的无线充电接收线圈100尽可能地靠近无线充电器20的充电底座的中心位置(假设无线充电器20的无线充电发射线圈位于卧式充电器的中心位置)，以使得无线充电器20的无线充电发射线圈和手机10的无线充电接收线圈100处于准确对位的状态，从而达到充电速率较大的目的。
如图3E所示的，手机10的屏幕上显示充电提示界面，充电提示界面显示无线充电接收线圈100在手机10的屏幕的偏下位置，用户根据该充电提示界面可以知晓无线充电接收线圈位于手机10的具 体的位置。从而便于用户将手机10的无线充电接收线圈放置于无线充电器20的合适位置，避免了手机10的无线充电接收线圈偏离无线充电器20的无线充电发射线圈导致的充电速率低以及充电失败的问题。
手机10为了将无线充电接收线圈100的图片显示在屏幕表面、对应于手机内部的无线充电接收线圈具体位置的相应位置处，可以通过以下方式实现。例如，当手机10的无线充电接收线圈100位于手机10偏下位置时，无线充电接收线圈100的中心位于如图3F所示的P处，P的坐标可以基于手机的像素点确定，例如，手机的屏幕分辨率为2640*1200，以手机宽度所在的方向为x轴，手机高度所在的方向为y轴，以手机左下角为原点，手机宽度方向的像素点为1200，手机高度方向的像素点为2640。则无线充电接收线圈100对应于x轴和y轴的中心位置的坐标则为(600，800)。
可以理解的是，手机10的无线充电接收线圈100也可以位于手机10的任意一个位置，手机10只需预先将内部的无线充电接收线圈所在的位置数据存储在存储器内，供处理器在手机对位过程中调用。无线充电器的充电底座的无线充电发射线圈也可以位于无线充电器20的任意一个位置，如果是已知型号的类型一的无线充电器，则可以在预先存储的充电对位图片中标识出无线充电发射线圈的具体位置或其中心位置。此外，如果充电提示界面中展示的充电对位图片包括无线充电发射线圈的位置，则该位置应当显示在手机内部无线充电接收线圈映射至屏幕表面的位置，使得借助充电对位图片的提示，用户可以移动手机或无线充电器以使手机内部的无线充电接收线圈与无线充电器内部的无线充电发射线圈处于准确对位的状态。
在本申请的一些实施例中，充电提示界面上还可以显示充电状态、充电电量、充电速率等信息，本申请实施例对于充电提示界面上显示的信息类型并不作限定。例如图3G所示的，电子设备的充电提示界面上不仅显示无线充电接收线圈100，还显示电子设备的充电电量的充电图标120(图中以当前充电电量为50％为例)，以及还可以例如图3H所示显示电子设备的充电速率121(图中以充电功率为15W为例)等。值得注意的是，用户可以通过电子设备上显示的充电速率121的值的大小进一步判断电子设备和无线充电器是否良好对位。例如，无线充电器的最大充电速率为17W，无线充电器和电子设备良好对位时充电速率的最低的预设值为13W。此时，电子设备的屏幕上显示的充电速率121为15W。其大于预设值13W，说明此时电子设备和无线充电器良好对位。
此外，手机10还可以周期性的向无线充电器反馈接收到的能量，用来指示是否有异物处于手机10和无线充电器之间。手机10也周期性的向无线充电器发送控制误差，用来让无线充电器将发送的功率信号调整到目标值。也就是说，有异物挡在手机10和无线充电器之间时，无线充电器发出的能量共同被手机10和异物接收，导致手机10接收到的能量值降低。当无线充电器发出的能量跟手机10接收到的能量差值达到一定数值后，就认为有异物在手机和无线充电器之间。其中，一定数值可以根据实际经验确定，例如，0.5W，本申请实施例在此并不作限定。
目标值指的是手机识别到了无线充电器之后，根据自身的需求确定的目标接收功率值。手机10的目标接收功率值是根据发射端的无线充电器的类型以及手机10的电池的温度等去设定。例如，无线充电器的充电能力(最大发射功率)为40W，手机10电池的当前温度为25度(一般的，手机10的合理的温度处于10度到45度之间)，手机10的目标接收功率则可以设置为40W。当然，手机10的目标接收功率也可以小于无线充电器的充电能力，本申请实施例在此并不作限定。
控制误差是手机10的实际接收功率值与目标接收功率值之间的差值。如果手机10反馈给无线充电器的控制误差为负值(即实际接收功率值小于目标接收功率值)，无线充电器就要增大发射功率； 如果手机10反馈给无线充电器的控制误差为正值(即实际接收功率值大于目标接收功率值)，则无线充电器就要减小发射功率。
如此，通过在电子设备的屏幕上展示充电对位图片，相较于在电子设备上只显示图3H所示的充电图标120(显示电量)，本申请提供的技术方案可以提示用户调整电子设备在无线充电器的无线充电底座上的位置，在无线充电底座和电子设备未准确对位时引导用户将电子设备放置于无线充电器的充电底座的较佳充电位置，使得电子设备的无线充电接收线圈的中心位置和无线充电器的无线充电发射线圈的中心位置之间的距离小于第一阈值。如此，实现电子设备和无线充电器的无线充电底座之间准确对位，提高了无线充电器对电子设备的充电速率。
关于类型二的立式充电器，充电对位图片的显示方式与卧式充电器的情形完全相同，因此不再赘述。
下面对实现本申请以上实施例示例的无线充电对位检测的无线充电器的结构和电子设备的结构进行说明：
首先，结合附图说明根据本申请的实施例的无线充电器20。
请参考图4A和图4B，图4A和图4B为本申请实施例公开的一种无线充电对位检测方法的无线充电器的外形示意图。图4A所示的无线充电器20为卧式无线充电器，图4B所示的无线充电器20为立式无线充电器。以无线充电器20为卧式充电器为例，如图4C所示的，无线充电器20包括上盖201、下盖202和无线充电底座本体203，上盖201和下盖202用来固定无线充电底座本体203。下盖202设置有散热孔和散热风扇用来为无线充电器20散热。
如图4D所示的，无线充电底座本体203包括但不限于主控电路2030、无线充电发射线圈2031和隔磁片2032。隔磁片2032固定在无线充电发射线圈2031的背面，用来提高电磁转换效率。
如图4E所示的，主控电路2030包括但不限于主控芯片20300和全桥逆变器20301。无线充电器20的电源(可以为直流电源)输出的电流，在主控芯片20300的控制下，经全桥逆变器20301转换为交流发射信号。无线充电发射线圈2031通过电磁耦合将交流发射信号传输至手机10。无线充电底座本体203通过改变逆变频率向手机10发送通信信号(作为第一通信信号)。第一通信信号可以为探测信号，探测信号可以为PING信号。本申请实施例中，无线充电底座本体203的无线充电发射线圈2031能够以100KHZ至205KHZ之间的发射频率(可以是周期性发射)，发送作为探测信号的PING信号，以检测是否有电子设备放在了无线充电底座本体203上并和手机10握手。当手机10的无线充电接收线圈100接收到无线充电发射线圈2031发送的PING信号，作为回应，手机10向无线充电器20返回信号强度包(作为响应信号)，信号强度包中包含了电子设备接收无线充电器发送的PING信号的信号强度等信息，用来指示有电子设备放在了无线充电底座本体203上。
其中，利用PING信号检测是否有电子设备放在了无线充电座本体203上具体是：PING信号具有一定的发射功率，当作为接收端的电子设备接收到PING信号后，会感应出对应幅值的电压信号。作为接收端的电子设备利用PING信号对应的电压信号的幅值与电子设备的最大电压值作比较并与相关系数(相关系数可以取为256)相乘，得到电子设备端相对于无线充电器的信号强度Q。计算公式具体如下：
Figure PCTCN2022079158-appb-000001
其中，U为用PING信号对应的电压信号的幅值，U max为电子设备的最大充电电压值，E为相关系数，其可以取值为256。
电子设备端得到信号强度Q后，基于Qi协议将信号强度Q反馈至无线充电器，无线充电器接收到信号强度Q后，则判定无线充电器上放置有电子设备。如果无线充电器未接收到信号强度Q，则判定无线充电器上未放置有电子设备。
其中，Qi是全球首个推动无线充电技术的标准化组织--无线充电联盟(Wireless Power Consortium，WPC)推出的“无线充电”标准，PING信号在Qi标准中，为发送端每间隔500毫秒发送一次的信号。通常情况下每次发送端发送PING信号的持续时长为90毫秒。该PING信号的发射频率通常在100KHz至205KHz之间。在接收端接收到PING信号后，接收端可以响应于PING信号，向发送端反馈响应信号，从而确认接收端与发送端之间的连接已建立，即接收端和发送端之间的握手完成。在发送端接收到响应信号后，可以停止PING信号的发送，通过发送功率信号的方式，使得接收端实现充电等功能。其中，根据本申请中的一些实施例，发送端可以为无线充电器20，接收端可以为手机10。
手机10继续向无线充电器20发送身份识别包和配置包，其中，身份识别包是由手机10的厂商编码、设备识别符、型号等信息组成的，用来标识手机10的型号及身份等。配置包中包含了手机10的最大接收功率等信息。从而由无线充电器20确定手机10的最大接收功率。
在无线充电器20和手机10完成身份认证后，由无线充电器20基于私有协议向手机10发送包含有无线充电器20的型号、最大输出功率等信息的通信信号(作为第二通信信号)。
即手机10发送私有协议给无线充电器20。如果无线充电器20响应了私有协议，则由无线充电器20向手机10发送包含有无线充电器20的型号、最大输出功率等信息的通信信号(作为第二通信信号)。手机10接收到第二通信信号之后，根据第二通信信号中包含的无线充电器20的型号，并查找存储器中是是否存储无线充电器20的充电底座图片，如果存储器中存储有无线充电器20的充电底座图片，则显示在手机10的显示屏上。若手机10无法根据第二通信信号中包含的无线充电器20的型号从存储器中查找出无线充电器20的充电底座图片，则从存储器中查找出手机10的无线充电接收线圈的图片并显示在手机10的显示屏上。
其中，私有协议可以是基于标准的Qi协议外，由厂商自己在Qi标准协议的规定字段内进行的自定义通信包，其中，自定义通信包指的是由Qi标准协议的规定字段0x18内定义的无线充电器的型号。例如，标准的Qi协议里面规定的数据包头为01时，则01代表的字段是信号强度包，标准的Qi协议里面规定的数据包头为0x18时，则0x18代表的字段是专用数据包，该专用数据包可以包括无线充电器20的型号。
如果无线充电器20不响应私有协议，则由无线充电器20根据预先设定好的配置向手机10传输能量(功率信号)实现对手机10的充电。手机10还可以根据无线充电器20向手机10传输的能量确定出无线充电器20的发射功率。其中，预先设定好的配置指的是Qi协议定义的标准充电功率。其中，标准充电功率可以是无线充电器20的最大充电功率(最大发射功率)。
其次，结合附图说明根据本申请的实施例的手机10。
请参考图5A，为本申请实施例提供的一种手机10的结构示意图。如图5A所示，手机10可以包括处理器410，外部存储器接口420，内部存储器421，通用串行总线(universal serial bus，USB)接口430，充电管理模块440，电源管理模块441，电池442，天线1，天线2，移动通信模块450，无线通信模块460，音频模块470，扬声器470A，受话器470B，麦克风470C，耳机接口470D，传感 器模块480，按键490，马达491，指示器492，摄像头493，显示屏494，以及用户标识模块(subscriber identification module，SIM)卡接口495等。其中，传感器模块480可以包括压力传感器480A，陀螺仪传感器480B，气压传感器480C，磁传感器480D，加速度传感器480E，距离传感器480F，接近光传感器480G，指纹传感器480H，温度传感器480J，触摸传感器480K，环境光传感器480L，骨传导传感器480M等。
可以理解的是，本实施例示意的结构并不构成对手机10的具体限定。在另一些实施例中，手机10可以包括比图示更多或更少的部件，或者组合某些部件，或者拆分某些部件，或者不同的部件布置。图示的部件可以以硬件，软件或软件和硬件的组合实现。
处理器410可以包括一个或多个处理单元，例如：处理器410可以包括应用处理器(application processor，AP)，调制解调处理器，图形处理器(graphics processingunit，GPU)，图像信号处理器(image signal processor，ISP)，控制器，存储器，视频编解码器，数字信号处理器(digital signal processor，DSP)，基带处理器，和/或神经网络处理器(neural-network processing unit，NPU)等。其中，不同的处理单元可以是独立的器件，也可以集成在一个或多个处理器中。
控制器可以是手机10的神经中枢和指挥中心。控制器可以根据指令操作码和时序信号，产生操作控制信号，完成取指令和执行指令的控制。
处理器410中还可以设置存储器，用于存储指令和数据。在一些实施例中，处理器410中的存储器为高速缓冲存储器。该存储器可以保存处理器410刚用过或循环使用的指令或数据。如果处理器410需要再次使用该指令或数据，可从所述存储器中直接调用。避免了重复存取，减少了处理器410的等待时间，因而提高了系统的效率。
在一些实施例中，处理器410可以包括一个或多个接口。接口可以包括集成电路(inter-integrated circuit，I2C)接口，集成电路内置音频(inter-integrated circuitsound，I2S)接口，脉冲编码调制(pulse code modulation，PCM)接口，通用异步收发传输器(universal asynchronous receiver/transmitter，UART)接口，移动产业处理器接口(mobile industry processor interface，MIPI)，通用输入输出(general-purposeinput/output，GPIO)接口，用户标识模块(subscriber identity module，SIM)接口，和/或通用串行总线(universal serial bus，USB)接口等。
可以理解的是，本实施例示意的各模块间的接口连接关系，只是示意性说明，并不构成对手机10的结构限定。在另一些实施例中，手机10也可以采用上述实施例中不同的接口连接方式，或多种接口连接方式的组合。
手机10的无线通信功能可以通过天线1，天线2，移动通信模块450，无线通信模块460，调制解调处理器以及基带处理器等实现。
天线1和天线2用于发射和接收电磁波信号。手机10中的每个天线可用于覆盖单个或多个通信频带。不同的天线还可以复用，以提高天线的利用率。例如：可以将天线1复用为无线局域网的分集天线。在另外一些实施例中，天线可以和调谐开关结合使用。
无线通信模块460可以提供应用在手机10上的包括无线局域网(wirelesslocal area networks，WLAN)(如无线保真(wireless fidelity，Wi-Fi)网络)，蓝牙(bluetooth，BT)，全球导航卫星系统(global navigation satellite system，GNSS)，调频(frequency modulation，FM)，近距离无线通信技术(near field communication，NFC)，红外技术(infrared，IR)等无线通信的解决方案。无线通信模块460可以是集成至少一个通信处理模块的一个或多个器件。无线通信模块460经由天线2接收电磁波，将电磁波信 号调频以及滤波处理，将处理后的信号发送到处理器410。无线通信模块460还可以从处理器410接收待发送的信号，对其进行调频，放大，经天线2转为电磁波辐射出去。
在一些实施例中，手机10的天线1和移动通信模块450耦合，天线2和无线通信模块460耦合，使得手机10可以通过无线通信技术与网络以及其他设备通信。无线通信技术可以包括全球移动通讯系统(global system for mobile communications，GSM)，通用分组无线服务(general packet radio service，GPRS)，码分多址接入(codedivision multiple access，CDMA)，宽带码分多址(wideband code division multipleaccess，WCDMA)，时分码分多址(time-division code division multiple access，TD-SCDMA)，长期演进(long term evolution，LTE)，BT，GNSS，WLAN，NFC，FM，和/或IR技术等。所述GNSS可以包括全球卫星定位系统(global positioning system，GPS)，全球导航卫星系统(global navigation satellite system，GLONASS)，北斗卫星导航系统(beidounavigation satellite system，BDS)，准天顶卫星系统(quasi-zenith satellitesystem，QZSS)和/或星基增强系统(satellite based augmentation systems，SBAS)。
手机10通过GPU，显示屏494，以及应用处理器等实现显示功能。GPU为图像处理的微处理器，连接显示屏494和应用处理器。GPU用于执行数学和几何计算，用于图形渲染。处理器410可包括一个或多个GPU，其执行程序指令以生成或改变显示信息。
显示屏494用于显示图像，视频等。图像包括但不限于充电对位图片、手机10的无线充电接收线圈的图片、以及充电状态、充电电量和充电速率等参数中的至少一项。
显示屏494包括显示面板。显示面板可以采用液晶显示屏(liquid crystaldisplay，LCD)，有机发光二极管(organic light-emitting diode，OLED)，有源矩阵有机发光二极体或主动矩阵有机发光二极体(active-matrix organic light emitting diode，AMOLED)，柔性发光二极管(flex light-emitting diode，FLED)，Miniled，MicroLed，Micro-oLed，量子点发光二极管(quantum dot light emitting diodes，QLED)等。
手机10可以通过ISP，摄像头493，视频编解码器，GPU，显示屏494以及应用处理器等实现拍摄功能。
内部存储器421可以用于存储计算机可执行程序代码，所述可执行程序代码包括指令。处理器410通过运行存储在内部存储器421的指令，从而执行手机10的各种功能应用以及数据处理。例如，在本申请实施例中，处理器410可以通过执行存储在内部存储器421中的指令，响应于用户在显示屏494的触摸事件。内部存储器421可以包括存储程序区和存储数据区。其中，存储程序区可存储操作系统，至少一个功能所需的应用程序(比如声音播放功能，图像播放功能等)等。存储数据区可存储手机10使用过程中所创建的数据(比如音频数据，电话本等)等。此外，内部存储器421可以包括高速随机存取存储器，还可以包括非易失性存储器，例如至少一个磁盘存储器件，闪存器件，通用闪存存储器(universal flashstorage，UFS)等。
根据本申请中的一些实施例，对于内部存储器421存储的内容不作限定。例如，内部存储器421可以用于预先存储充电对位图片，包括每一种型号的无线充电器的充电底座图片(标识出无线充电发射线圈或未标识出无线充电发射线圈的图片)、手机10的无线充电接收线圈的图片、手机10的屏幕分辨率中的至少一项。
陀螺仪传感器480B可以用于确定手机10的运动姿态。在一些实施例中，可以通过陀螺仪传感器480B确定手机10围绕三个轴(即，x，y和z轴)的角速度。陀螺仪传感器480B实时获取手机10的 姿态数据，并将该姿态数据上报至处理器410，处理器410根据该姿态数据确定手机10当前处于横卧、横立、竖立等放置状态，并根据所确定的手机放置状态选择如何显示充电对位图片。例如，当手机10横放在立式无线充电器上时，处理器410根据陀螺仪传感器480B获取的姿态数据检测到手机10处于横立的放置状态，相应在屏幕上横屏显示充电对位图片200，参见图2K。
在本申请的一些实施例中，手机10还可以包括无线充电接收线圈(无线充电接收端)，用于接收无线充电输入的能量。无线充电接收线圈接收的无线充电输入能量由充电管理模块440进行管理，将输入的能量用于为电池442进行充电。其中，无线充电接收线圈还可以用于接收无线充电器20发送的第一通信信号和第二通信信号。
电源管理模块441用于连接电池442，充电管理模块440与处理器410。电源管理模块441接收电池442和/或充电管理模块440的输入，为处理器410，内部存储器421，显示屏494，摄像头493，和无线通信模块460等供电。电源管理模块441还可以用于监测电池容量，电池循环次数，电池健康状态(漏电，阻抗)等参数，并将上述参数上报至处理器410，由显示屏494显示在充电提示界面中，参见图3G。
根据本申请中的一些实施例，处理器还可以根据手机10针对第一通信信号返回的信号强度以及无线充电器20向手机10发送的功率信号确定手机10的无线充电接收线圈和无线充电器20的无线充电发射线圈之间的位置关系。其中，手机10的无线充电接收线圈和无线充电器20的无线充电发射线圈之间的位置关系可以包括手机10的无线充电接收线圈和无线充电器20的无线充电发射线圈之间的准确对位或未准确对位(偏位)。
下面对实现本申请以上的无线充电对位检测方法的手机10的软件系统进行说明：
手机10的软件系统可以采用分层架构，事件驱动架构，微核架构，微服务架构，或云架构。本申请实施例以分层架构的Android系统为例，示例性说明手机10的软件结构。
图5B示例性示出了手机10的软件结构框图。
分层架构将软件分成若干个层，每一层都有清晰的角色和分工。层与层之间通过软件接口通信。在一些实施例中，将Android系统分为四层，从上至下分别为应用程序层，应用程序框架层，安卓运行时(Androidruntime)和系统库，以及内核层。
应用程序层可以包括一系列应用程序包。
如图5B所示，应用程序包可以包括相机，运动，图库，应用商店，联系人，邮箱，云共享，备忘录，设置，音乐，短信息等应用程序。
应用程序框架层为应用程序层的应用程序提供应用编程接口(applicationprogramminginterface，API)和编程框架。应用程序框架层包括一些预先定义的函数。
如图5B所示的，应用程序框架层可以包括显示策略服务、电源管理服务(powermanagerservice，PMS)、显示管理服务(displaymanagerservice，DMS)。当然，应用程序框架层中还可以包括活动管理器(activity managerservice，AMS)、窗口管理服务(window manager service，WMS)，触摸事件管理服务(Input Manager Service，IMS)，内容提供器，视图系统，电话管理器，资源管理器，通知管理器等，本申请实施例对此不作任何限制。
内容提供器用来存放和获取数据，并使这些数据可以被应用程序访问。所述数据可以包括视频，图像(如无线充电器的无线充电底座的图片、手机10的无线充电接收线圈的图片等充电对位图片)，音频，拨打和接听的电话，浏览历史和书签，电话簿等。
其中，显示策略服务可用于从内容提供器获取提供的图像、充电状态、充电电量等数据并发送给WMS，由WMS显示在手机10的显示屏上。
WMS于管理窗口程序。窗口管理服务可以获取手机10的显示屏的屏幕尺寸，并根据手机10的放置状态在显示屏上竖屏或横屏显示无线充电器的无线充电底座的图片、手机10的无线充电接收线圈等的充电提示界面的窗口。
应用程序框架层的窗口管理服务器WMS根据AMS的设置绘制窗口，然后将窗口数据发送给内核层的显示驱动，由显示驱动在显示屏上显示对应的界面。
IMS用来感知触摸事件，获取屏幕上的触摸位置处的坐标等。
视图系统包括可视控件，例如显示文字的控件，显示图片的控件等。视图系统可用于构建应用程序。显示界面可以由一个或多个视图组成的。例如，包括音乐应用图标的锁屏界面，可以包括显示文字的视图以及显示图片的视图。
电话管理器用于提供手机10的通信功能。例如通话状态的管理(包括接通，挂断等)。
资源管理器为应用程序提供各种资源，比如本地化字符串，图标，图片，布局文件，视频文件等等。
通知管理器使应用程序可以在状态栏中或者在系统锁屏界面显示通知信息。通知管理器还可以是以图表或者滚动条文本形式出现在系统顶部状态栏的通知，例如后台运行的应用程序的通知，还可以是以对话窗口形式出现在屏幕上的通知。例如在状态栏提示文本信息，发出提示音，手机振动，指示灯闪烁等。
Android Runtime包括核心库和虚拟机。Android runtime负责安卓系统的调度和管理。
核心库包含两部分：一部分是java语言需要调用的功能函数，另一部分是安卓的核心库。
应用程序层和应用程序框架层运行在虚拟机中。虚拟机将应用程序层和应用程序框架层的java文件执行为二进制文件。虚拟机用于执行对象生命周期的管理，堆栈管理，线程管理，安全和异常的管理，以及垃圾回收等功能。
系统库可以包括多个功能模块。例如：表面管理器(surfacemanager)，媒体库(MediaLibraries)，三维图像处理库(例如：OpenGLES)，2D图形引擎(例如：SGL)等。
表面管理器用于对显示子系统进行管理，并且为多个应用程序提供了2D和3D图层的融合。
媒体库支持多种常用的音频，视频格式回放和录制，以及静态图像文件等。媒体库可以支持多种音视频编码格式，例如:MPEG4，H.264，MP3，AAC，AMR，JPG，PNG等。
三维图像处理库用于实现三维图像绘图，图像渲染，合成，和图层处理等。
2D图形引擎是2D绘图的绘图引擎。
内核层是硬件和软件之间的层。内核层至少包含内核层可以包含显示驱动，输入/输出设备驱动(例如，键盘、触摸屏、耳机、扬声器、麦克风等)，摄像头驱动，音频驱动以及传感器驱动等。本申请实施例对此不作任何限制。
上述手机10可以为全面屏手机、或是在手机的正面设置有屏幕和独立于屏幕的物理按键的手机等。本申请实施例中，对于手机的形态、功能等均不作限定。
下面对本申请实施例示例性的无线充电对位检测方法进行说明。当将电子设备放置于无线充电器上，电子设备将与无线充电器建立无线通信连接，具体过程参见图6A所示的通信时序图。
电子设备与无线充电器建立无线通信连接至少包括以下步骤S500至S504：
步骤S500：无线充电器向电子设备发送PING信号。其中，无线充电器作为发送端，可以周期性的发送PING信号，例如每间隔500毫秒发送一次信号。通常情况下每次发送端发送PING信号的持续时长为90毫秒。该PING信号的发射频率通常在100KHz至205KHz之间。
步骤S501：电子设备接收到PING信号后向无线充电器返回信号强度包。电子设备作为接收端，响应于所接收到的PING信号，接收端向无线充电器返回信号强度包，信号强度包用来向无线充电器指示有接收端放在了其充电底座上。其中，信号强度包中包含了电子设备接收到的PING信号的信号强度等信息。
步骤S502：电子设备返回信号强度包并在无线充电器接收信号强度包之后，电子设备继续向无线充电器发送该电子设备的身份识别包和配置包。其中，身份识别包是由电子设备的厂商编码、设备识别符、型号等信息组成的，用来标识电子设备的型号及身份等。配置包中包含了电子设备的最大接收功率等信息。根据接收到的配置包，无线充电器可以确定电子设备的最大接收功率。
步骤S503：电子设备向无线充电器发送私有协议。针对无线充电器响应私有协议的情况，进入步骤S504。针对无线充电器不响应私有协议的情况，则按照原方式由无线充电器为电子设备充电。这里的“原方式”指的是电子设备放置于无线充电器上进行充电后，电子设备的显示屏上只显示充电图标，包括正在充电的状态图标，和当前电池的电量等。
步骤S504：响应于电子设备发送的私有协议，无线充电器向电子设备发送设备信息数据。其中，设备信息数据包含但不限于无线充电器的型号、最大输出功率等信息。
在电子设备与无线充电器建立无线通信连接之后，电子设备根据所接收到的设备信息数据等显示充电提示界面。图6B为本申请实施例公开的电子设备显示充电提示界面的具体实现的流程示意图。
步骤S505：电子设备接收设备信息数据。具体的，电子设备接收无线充电器发送的设备信息数据，设备信息数据包括但不限于无线充电器的型号以及最大输出功率等信息。
步骤S506：电子设备识别设备信息中的无线充电器的型号。具体的，电子设备根据接收到的无线充电器的型号，搜索本机存储器是否预先存储有对应型号的无线充电器的充电底座图片。如果电子设备能搜索到该型号的无线充电器的充电底座图片，则进入步骤S507，在判断完无线充电器的类型(和电子设备的姿态)后，将充电底座图片的至少一部分确定为充电对位图片并显示在充电提示界面上；如果没有搜索到该型号的无线充电器的充电底座图片，则进入步骤S508，将电子设备的无线充电接收线圈的图片确定为充电对位图片并显示在充电提示界面上。在本申请的另一种实现方式中，在搜索完本机存储器未找到该型号的无线充电器的充电底座图片时，电子设备可以进一步搜索云端数据库中是否有该型号的无线充电器的充电底座图片；或者电子设备可以在没有搜索本机的情况下直接搜索云端数据库中是否有该型号的无线充电器的充电底座图片。
步骤S507：电子设备判断该型号的无线充电器的类型，无线充电器的类型可以是卧式无线充电器或者立式无线充电器。如果是卧式无线充电器，则进入步骤S509，如果是立式无线充电器，则进入步骤510。具体的，电子设备可以根据接收到的无线充电器的型号来判断无线充电器是否为立式无线充电器，如果该型号对应的无线充电器名称包括立式，则判断为立式无线充电器，否则判断为卧式无线充电器。
步骤S508：电子设备在屏幕的充电提示界面显示出电子设备的无线充电接收线圈的图片。其中，无线充电接收线圈的图片的中心位置和电子设备的无线充电接收线圈的中心位置相重合。具体的，可以由处理器将无线充电接收线圈的图片的中心的位置坐标调整到与电子设备内部设置的无线充电接 收线圈的中心位置对应的屏幕表面的位置。也就是说，对于未能识别出型号的无线充电器，可以将电子设备的无线充电接收线圈的图片作为充电对位图片，例如，其可以为上述实施例记载的如图3D或3E所示的无线充电接收线圈100的图片。
充电提示界面不仅可以显示充电对位图片，也可以显示充电状态、充电电量、充电速率等信息，例如，如图3G所示的表示电子设备的充电电量的充电图标120，本申请实施例对于充电提示界面上显示的信息类型并不作限定。
步骤S509：对于卧式无线充电器，在电子设备的屏幕上显示充电底座图片的至少一部分。其中，充电底座图片的至少一部分可以作为充电对位图片，如上述实施例中图2A和图2B所示例的。
电子设备在显示屏上显示卧式充电器的充电底座图片时，首先可以由处理器从内部存储器中读取对应型号的无线充电器的充电底座图片、电子设备的屏幕分辨率以及无线充电接收线圈中心位置坐标等信息。其中，无线充电接收线圈中心位置坐标是指无线充电接收线圈的中心在电子设备的屏幕表面上的位置坐标，该位置坐标基于电子设备屏幕的像素而确定，并提前存储在内部存储器中。然后，处理器根据电子设备的屏幕分辨率和无线充电接收线圈中心位置坐标，将充电底座图片中的无线充电发射线圈的几何中心绘制在无线充电接收线圈的中心位置处，无线充电接收线圈的中心位置坐标的获取方式参见图3F对应的实施例部分。由处理器计算电子设备的屏幕与充电底座图片的重合部分，具体是将充电底座图片与电子设备的屏幕取交集，得到交集的坐标，然后将交集的坐标中的边缘坐标进行连图，得到重合部分的图形。处理器将该重合部分的图形另存为一个图形缓存区，将该图形缓存区发送至电子设备的图形显示系统，经处理后再放到硬件缓冲帧/区中。而硬件缓冲帧/区是手机内存中的一块区域。屏幕上显示的内容是从硬件缓冲帧上读取的，大致过程是从缓冲区的起始地址开始，从上往下，从左到右扫描整个缓冲区，将内容映射到屏幕上。如此，便可以在电子设备的屏幕上显示出充电对位图片。如图6C所示的，电子设备的屏幕和充电底座图片的重合部分便为充电对位图片200。
步骤S510：对于立式无线充电器，电子设备判断其姿态是竖直放置还是水平放置。针对竖直放置和水平放置的情况，在电子设备的屏幕上对应展示充电对位图片。电子设备在竖直放置和水平放置时的充电对位图片可以参见上述实施例中图2G-2K所描述的。
示例性的，在本申请的一些实施例中，对于电子设备的姿态是竖直放置还是水平放置可以通过加速度传感器确定，具体如下：
电子设备检测到无线充电器发送的PING信号后，获取加速度传感器的输出数据：
假设加速度传感器在三维坐标系内的输出数据为x，y，z。
利用输出的数据x，y，z计算pitch值和roll值。其中，pitch值指的是电子设备围绕x轴旋转所形成的俯仰角，roll值指的是电子设备围绕z轴旋转形成的翻滚角。
其中，pitch＝-asin(y/sqrt(x^2+y^2+z^2))/pi*180。
roll＝asin(x/sqrt(x^2+y^2+z^2))/pi*180。
其中，pi是圆周率。当pitch:[-5,5]roll:[-5,5]时，电子设备为水平放置(电子设备左右对称的放置在无线充电器上)。当pitch:[-70,-50]roll:[-5,5]时，电子设备为垂直竖直放置。当pitch[50,70]roll:[-5,5]时，电子设备为垂直倒立放置。当pitch:[-5,5]roll:[-70,-50]时，电子设备为右向水平放置(电子设备放置于无线充电器上的位置偏向无线充电器的右侧，即电子设备的顶端朝向右侧)。当pitch:[-5,5]roll:[50,70]时，电子设备为左向水平放置(电子设备放置于无线充电器上的位置偏向无线充电器的左侧，即电子设备的顶端朝向左侧)。
示例性的，在本申请的一些实施例中，电子设备在显示屏上显示立式无线充电器的充电对位图片时，首先可以由处理器从内部存储器中读取无线充电器的充电底座图片并以像素为单位确定充电底座图片的无线充电发射线圈中心位置(即无线充电发射线圈的几何中心)的坐标。同时处理器以像素为单位确定电子设备的无线充电接收线圈的中心位置的坐标，并将充电底座图片的无线充电发射线圈中心位置(如中心位置的坐标为(600，900))移动至无线充电接收线圈的中心位置(如中心位置的坐标为(600，800))处，即将充电底座图片的中心位置的坐标(600，900)变为无线充电接收线圈的中心位置的坐标(600，800)，也就是将充电底座图片中的无线充电发射线圈的几何中心绘制在无线充电接收线圈的中心位置处。在电子设备竖直放置在无线充电器上时，充电底座图片无需旋转，使得充电底座图片中无线充电器的两条竖边与电子设备屏幕的两条竖边平行。在电子设备水平放置在无线充电器上时，充电底座图片旋转90度，使得充电底座图片中无线充电器的两条竖边与手机屏幕的竖边相垂直。随后电子设备计算电子设备的屏幕与无线充电器的无线充电底座的重叠部分的坐标，然后将电子设备的屏幕与无线充电器的充电底座图片的重叠部分裁剪出来，并作为充电对位图片显示在屏幕上。
值得注意的是，充电底座图片的尺寸与无线充电器的尺寸是对应的，电子设备在显示充电底座图片时以同等尺寸显示。当无线充电底座的图片尺寸超出电子设备的屏幕尺寸时，电子设备对无线充电底座按照上述的方式将电子设备的屏幕与无线充电器的充电底座图片的重叠部分裁剪出来作为充电对位图片显示在屏幕上。当无线充电器底座的图片的尺寸未超出电子设备的屏幕尺寸时，电子设备的屏幕上完整显示无线充电底座的图片并作为充电对位图片显示在屏幕上。
本申请实施例公开的一种无线充电对位检测方法，通过在电子设备的屏幕上展示充电对位图片，可以在无线充电底座和电子设备未准确对位时，即电子设备未处于无线充电底座的较佳充电位置，提示用户调整电子设备在无线充电器的充电底座上的位置，从而实现电子设备处于无线充电器的较佳充电位置，在电子设备处于无线充电器的较佳充电位置时，电子设备的充电速率较快，提高了无线充电器对电子设备的充电速率。
在本申请一些实施例中，还提供了一种电子设备，下面结合图7对本申请实施例中的电子设备进行介绍。图7为本申请实施例公开的一种电子设备的结构示意图。
对于至少一个实施例，控制器中枢804经由诸如前端总线(FSB)之类的多分支总线、诸如快速通道互连(QPI)之类的点对点接口、或者类似的连接与处理器801进行通信。处理器801执行控制一般类型的数据处理操作的指令。在一实施例中，控制器中枢804包括，但不局限于，图形存储器控制器中枢(GMCH)(图中未示出)和输入/输出中枢(IOH)(其可以在分开的芯片上)(图中未示出)，其中GMCH包括存储器和图形控制器并与IOH耦合。
电子设备800还可包括耦合到控制器中枢804的协处理器806和存储器802。或者，存储器802和GMCH中的一个或两者可以被集成在处理器801内(如本申请中所描述的)，存储器802和协处理器806直接耦合到处理器801以及控制器中枢804，控制器中枢804与IOH处于单个芯片中。
在一个实施例中，存储器802可以是例如动态随机存取存储器(DRAM)、相变存储器(PCM)或这两者的组合。存储器802中可以包括用于存储数据和/或指令的一个或多个有形的、非暂时性计算机可读介质。计算机可读存储介质中存储有指令，具体而言，存储有该指令的暂时和永久副本。
在一个实施例中，协处理器806是专用处理器，诸如例如高吞吐量MIC处理器、网络或通信处理器、压缩引擎、图形处理器、GPU、或嵌入式处理器等等。协处理器806的任选性质用虚线表示在 图7中。
在一个实施例中，电子设备800可以进一步包括网络接口(NIC)803。网络接口803可以包括收发器，用于为设备800提供无线电接口，进而与任何其他合适的设备(如前端模块，天线等)进行通信。在各种实施例中，网络接口803可以与电子设备800的其他组件集成。网络接口803可以实现上述实施例中的通信单元的功能。
在一个实施例中，如图7所示的，电子设备800可以进一步包括输入/输出(I/O)设备805。输入/输出(I/O)设备805可以包括：用户界面，该设计使得用户能够与电子设备800进行交互；外围组件接口的设计使得外围组件也能够与电子设备800交互；和/或传感器设计用于确定与电子设备800相关的环境条件和/或位置信息。
值得注意的是，图7仅是示例性的。即虽然图7中示出了电子设备800包括处理器801、控制器中枢804、存储器802等多个器件，但是，在实际的应用中，使用本申请各方法的设备，可以仅包括电子设备800各器件中的一部分器件，例如，可以仅包含处理器801和NIC803。图7中可选器件的性质用虚线示出。
在本申请一些实施例中，该电子设备800的计算机可读存储介质中存储有指令可以包括：由处理器中的至少一个单元执行时导致设备实施以上实施例所提到的无线充电对位的检测方法的指令。当指令在计算机上运行时，使得计算机执行上述如以上实施例所提到的无线充电对位的检测方法。
现在参考图8，图8为本申请实施例公开的一种SoC的结构示意图，所示为根据本申请的一实施例的示例的SoC(System on Chip，片上系统)900的框图。在图8中，相似的部件具有同样的附图标记。另外，虚线框是更先进的SoC的可选特征。该SoC可以被用于根据本申请的一实施例的电子设备，根据其内所存储的指令，可以实现相应的功能。
在图8中，SoC900包括：互连单元1002，其被耦合至处理器1001；系统代理单元1006；总线控制器单元1005；集成存储器控制器单元1003；一组或一个或多个协处理器1007，其可包括集成图形逻辑、图像处理器、音频处理器和视频处理器；静态随机存取存储器(SRAM)单元1008；直接存储器存取(DMA)单元1004。在一个实施例中，协处理器1007包括专用处理器，诸如例如网络或通信处理器、压缩引擎、GPU、高吞吐量MIC处理器、或嵌入式处理器等等。
静态随机存取存储器(SRAM)单元1008中可以包括用于存储数据和/或指令的一个或多个计算机可读介质。计算机可读存储介质中可以存储有指令，具体而言，存储有该指令的暂时和永久副本。
在SoC900被应用于根据本申请的电子设备上时，计算机可读存储介质中存储有指令可以包括：由处理器中的至少一个单元执行时导致电子设备实施如以上实施例所提到的无线充电对位的检测方法的指令。当指令在计算机上运行时，使得计算机执行上述如以上实施例所提到的无线充电对位的检测方法。
此外，本申请实施例还公开了一种计算机可读存储介质，计算机可读存储介质上存储有处理程序，处理程序被处理器执行时实现以上实施例所提到的无线充电对位的检测方法。
计算机可读存储介质可以为只读存储器、随机存取存储器、硬盘或者光盘等。

Claims (12)

  1. 一种无线充电对位检测方法，应用于电子设备，其特征在于，所述电子设备与无线充电器可进行通信交互，所述方法包括：
    接收所述无线充电器发送的设备信息数据；
    根据所述设备信息数据确定充电对位图片；
    显示充电提示界面，所述充电提示界面包括所述充电对位图片，用于提示或指示所述电子设备是否放置于所述无线充电器的较佳充电位置；
    其中，根据所述设备信息数据确定充电对位图片，具体包括：
    根据所述设备信息数据，确定所述无线充电器的型号；
    按照所述无线充电器的所述型号，搜索所述电子设备中是否存储对应所述型号的充电底座图片；
    如果搜索结果是所述电子设备存储有对应所述型号的充电底座图片，则将所述充电底座图片的至少一部分确定为所述充电对位图片；
    如果搜索结果是所述电子设备没有存储对应所述型号的充电底座图片，则将所述电子设备的无线充电接收线圈的图片确定为所述充电对位图片。
  2. 如权利要求1所述的无线充电对位检测方法，其特征在于，所述方法还包括：
    根据所述无线充电器的所述型号判断所述无线充电器的类型，所述无线充电器的类型包括卧式充电器和立式充电器；
    若判断结果是所述无线充电器的类型为所述卧式充电器，则所述显示充电提示界面，具体包括：
    将所述卧式充电器的充电底座图片中的无线充电发射线圈的几何中心绘制在所述电子设备的屏幕上与所述无线充电接收线圈的中心对应的位置，并将所述充电底座图片与所述电子设备的屏幕的重合部分作为所述充电对位图片显示在所述充电提示界面上。
  3. 如权利要求1所述的无线充电对位检测方法，其特征在于，所述方法还包括：
    根据所述无线充电器的所述型号判断所述无线充电器的类型，所述无线充电器的类型包括卧式充电器和立式充电器；
    若判断结果是所述无线充电器的类型为所述立式充电器，则所述显示充电提示界面，具体包括：
    判断所述电子设备的姿态，所述电子设备的姿态包括竖直放置状态和水平放置状态；
    根据所述电子设备的姿态，将所述立式充电器的充电底座图片的无线充电发射线圈的几何中心绘制在所述电子设备的屏幕上与所述无线充电接收线圈的中心对应的位置，并将所述充电底座图片与所述电子设备的屏幕的重合部分作为所述充电对位图片显示在所述充电提示界面上。
  4. 如权利要求2所述的无线充电对位检测方法，其特征在于，与所述无线充电接收线圈的中心对应的位置是所述无线充电接收线圈的中心在所述电子设备的屏幕表面上的位置，所述位置根据所述电子设备的所述屏幕的像素而确定。
  5. 如权利要求3所述的无线充电对位检测方法，其特征在于，与所述无线充电接收线圈的中心对应的位置是所述无线充电接收线圈的中心在所述电子设备的屏幕表面上的位置，所述位置根据所述电子设备的所述屏幕的像素而确定。
  6. 如权利要求1-5任一项所述的无线充电对位检测方法，其特征在于，
    当所述电子设备放置于所述无线充电器的较佳充电位置时，所述电子设备的屏幕上显示的充电速率高于预设值；
    当所述电子设备未放置于所述无线充电器的较佳充电位置时，所述电子设备的屏幕上显示的充电 速率低于所述预设值。
  7. 如权利要求1-5任一项所述的无线充电对位检测方法，其特征在于，
    所述充电提示界面包括第一标识，所述第一标识用于指示所述电子设备内部的无线充电接收线圈的中心位置。
  8. 如权利要求1-5任一项所述的无线充电对位检测方法，其特征在于，所述充电提示界面还包括所述电子设备当前的电量、充电时间、充电速率和充电状态中的至少一者。
  9. 如权利要求1-5任一项所述的无线充电对位检测方法，其特征在于，所述方法还包括：将所述充电对位图片进行存储。
  10. 如权利要求1-5任一项所述的无线充电对位检测方法，其特征在于，所述在接收所述无线充电器发送的设备信息数据之前，所述方法还包括：
    所述电子设备向所述无线充电器发送私有协议；
    所述设备信息数据为所述无线充电器响应于所述私有协议，向所述电子设备发送的设备信息数据。
  11. 如权利要求10所述的无线充电对位检测方法，其特征在于，所述电子设备向所述无线充电器发送私有协议，包括：
    响应于所述无线充电器发送的通信信号，所述电子设备向所述无线充电器发送所述私有协议，其中，所述通信信号为PING信号。
  12. 一种电子设备，其特征在于，包括：
    存储器，所述存储器存储有代码；
    处理器，所述处理器在执行所述代码时使得所述电子设备实现如权利要求1-11任一项所述的无线充电对位检测方法。
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