WO2014040233A1 - 无线充电器和多终端无线充电方法 - Google Patents

无线充电器和多终端无线充电方法 Download PDF

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Publication number
WO2014040233A1
WO2014040233A1 PCT/CN2012/081264 CN2012081264W WO2014040233A1 WO 2014040233 A1 WO2014040233 A1 WO 2014040233A1 CN 2012081264 W CN2012081264 W CN 2012081264W WO 2014040233 A1 WO2014040233 A1 WO 2014040233A1
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WO
WIPO (PCT)
Prior art keywords
terminal
priority
wireless charging
power
wireless
Prior art date
Application number
PCT/CN2012/081264
Other languages
English (en)
French (fr)
Inventor
陈华星
Original Assignee
东莞宇龙通信科技有限公司
宇龙计算机通信科技(深圳)有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 东莞宇龙通信科技有限公司, 宇龙计算机通信科技(深圳)有限公司 filed Critical 东莞宇龙通信科技有限公司
Priority to US14/425,982 priority Critical patent/US20150244199A1/en
Priority to EP12884479.2A priority patent/EP2897427A4/en
Priority to PCT/CN2012/081264 priority patent/WO2014040233A1/zh
Priority to CN201280073347.8A priority patent/CN104322117A/zh
Publication of WO2014040233A1 publication Critical patent/WO2014040233A1/zh

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
    • H04B5/70—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes
    • H04B5/79—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for data transfer in combination with power transfer
    • 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
    • H02J50/20—Circuit arrangements or systems for wireless supply or distribution of electric power using microwaves or radio frequency waves
    • 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
    • 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
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present invention relates to the field of wireless charging technologies, and in particular, to a wireless charger and a multi-terminal wireless charging method. Background technique
  • wireless charging technologies for mobile phones and other terminals are becoming more mature, and the market prospects are becoming more and more clear.
  • multiple terminals can be simultaneously charged.
  • the wireless charger simultaneously charges the multi-terminal, the electric energy is evenly distributed among the multi-terminals. This method cannot achieve the optimal configuration of the electric energy, and the charging time of each terminal is lengthened, so that the waiting time of the user is too long, and A terminal that is in urgent need of charging and has a large power consumption causes low power due to untimely charging.
  • the present invention provides a multi-terminal wireless charging technology, which can optimize power distribution and improve user experience when multiple terminals simultaneously perform wireless charging.
  • a wireless charger comprising: a controller, wherein the order of priority is to allocate charging power to the at least two terminals.
  • the power distribution can be optimized by acquiring the priority of the terminal, thereby improving the charging efficiency and improving the user experience.
  • the controller includes: a state acquiring unit, acquiring power consumption and current power of the terminal; a priority determining unit, according to a predetermined allocation rule, and power consumption and current of the terminal The power determines the priority of the terminal.
  • a predetermined allocation rule may be stored in the terminal, where the allocation rule relates to power consumption and power consumption of the terminal, and the priority is obtained according to the current power consumption and power of the acquired terminal in combination with the pre-stored allocation rule.
  • the priority is inversely proportional to the current power of the terminal and is proportional to the power consumption of the terminal.
  • an allocation rule is proposed, that is, the lower the power of the terminal, the higher the priority, and the higher the power consumption of the terminal is, the higher the priority is.
  • the low power and high power consumption of the terminal means that the terminal is in urgent need of charging.
  • the terminal with higher priority gets more power, so that the terminal that is in urgent need of charging is too low.
  • the controller includes: a time acquisition unit that acquires a time when the terminal enters the wireless charging area; and a priority determining unit that determines a priority of the terminal according to a time of entering the wireless charging area.
  • the priority is determined according to the time when the terminal enters the wireless charging area, and the highest priority is set for the terminal that first enters the wireless charging area according to the principle of first in first out, and the power allocated by the remaining terminals is sequentially stepped. For example, there are 5 terminals for charging, and the charging power can be distributed according to 30%, 25%, 20%, 15%, 10%.
  • the controller includes: a calculating unit, acquiring power consumption and current power of the terminal, and calculating, according to the power consumption of the terminal, the current power, the magnitude of the charging current, and the required rated power, the terminal is fully charged.
  • the required time; the priority determining unit determines the priority of the terminal according to the time required for the terminal to be fully charged calculated by the calculating unit.
  • the priority of the terminal is determined according to the time required for the terminal to be fully charged, and the terminal with the shortest time required for full charge can be set to the highest priority, which can ensure high charging efficiency.
  • the controller further includes: a time acquisition list, when the power consumption of the at least two terminals acquired by the state acquiring unit is the same as the current power consumption (in the case of power consumption and When the current power is used to determine the priority), further according to entering the wireless The time of the charging zone determines the priority of the terminal.
  • the power consumption of the terminal and the current power are first acquired by the state acquiring unit.
  • the priority cannot be determined according to the power consumption and the current power.
  • the acquiring unit acquires the time when the terminal enters the wireless charging area, and the priority determining unit determines the priority of the terminal according to the time of entering the wireless charging area.
  • the state acquiring unit is further configured to acquire a magnitude of a charging current of the terminal and a required power rating;
  • the controller further includes: a calculating unit, based on the work of the terminal Calculating the time required for the terminal to be fully charged, the current power, the magnitude of the charging current, and the required power rating;
  • the priority determining unit is further configured to use the power consumption of the at least two terminals acquired by the state acquiring unit When the current power is the same (when the priority cannot be determined by the power consumption and the current power), the priority of the terminal is determined according to the time required for the terminal to be fully charged calculated by the calculation unit.
  • the priority determining unit cannot determine the priority of the terminal by using the terminal, and the state acquiring unit needs to further acquire the charging current of the terminal.
  • the rated power is required, and the calculation unit calculates the required charging time according to the charging current of the terminal and the required rated power, and determines the priority of the terminal according to the charging time.
  • the controller further includes: a time acquiring unit, acquiring a time when the terminal enters the wireless charging area; the priority determining unit is further configured to: acquire at least the state acquiring unit When the power consumption of the two terminals is the same as the current power and the time required for the at least two of the terminals calculated by the computing unit to be fully charged is the same (ie, the priority cannot be determined by the power consumption and the current power, nor can it be full The time required for the power to determine the priority) determines the priority of the terminal based on the time of entering the wireless charging area.
  • the priority of the terminal cannot be determined by the length of the charging time, and the priority of the terminal cannot be determined by the power consumption and the current power, the priority of the terminal can be determined according to the time of accessing the wireless charging area.
  • the wireless charger further includes: a determining unit, when the terminal enters the wireless charging area, determining whether the number of terminals that are in the wireless charging area is greater than a preset value; When the judgment result of the unit is YES, the terminal is prompted.
  • a determining unit when the terminal enters the wireless charging area, determining whether the number of terminals that are in the wireless charging area is greater than a preset value; When the judgment result of the unit is YES, the terminal is prompted.
  • a determining unit when the terminal enters the wireless charging area, determining whether the number of terminals that are in the wireless charging area is greater than a preset value; When the judgment result of the unit is YES, the terminal is prompted.
  • the controller is further configured to: when a terminal in the wireless charging area is fully charged, when a new terminal enters the wireless charging area, when the number of terminals in the wireless charging area decreases, and/or Or, at a predetermined time interval from the last time determining the priority of the terminal, the priority of the terminal that is not fully charged in the wireless charging area is re-determined.
  • the priority is dynamically changeable, and the priority is re-determined when the charging power needs to be redistributed.
  • the controller adjusts each of the radiated powers.
  • the charging power allocated to each terminal is adjusted by adjusting the radiation power of each antenna according to the priority.
  • the general way to adjust the radiated power of the antenna is to control the radiated power of the antenna by controlling the output power of the power amplifier amplifier PA (Power Amplifier).
  • PA Power Amplifier
  • the wireless charger further includes: a bracket for fixing the antenna; a motor connected to the bracket and the controller, driving the rotation of the bracket according to a control signal from the controller, Adjust the radiation direction of the antenna.
  • the antenna of the wireless charger needs to adopt a directional antenna, and the directional antenna is characterized in that the antenna has good transmitting and receiving characteristics in a certain direction or a certain direction, but the transmitting and receiving characteristics in other directions are very Poor, therefore, it is necessary to adjust the radiation direction of the antenna by the motor adjustment bracket rotation to align it with the charging terminal.
  • a multi-terminal wireless charging method comprising: determining a priority of a terminal in a wireless charging area of a wireless charger; and allocating charging power to the terminal in the order of the priority.
  • the terminal can be obtained by The first step optimizes the distribution of electrical energy, improves charging efficiency, and enhances the user experience.
  • the step of determining the priority comprises: acquiring power consumption and current power of the terminal; determining a priority of the terminal according to a predetermined allocation rule and a power consumption of the terminal and a current power.
  • a predetermined allocation rule may be stored in the terminal, where the allocation rule relates to power consumption and power consumption of the terminal, and the priority is obtained according to the current power consumption and power of the acquired terminal in combination with the pre-stored allocation rule.
  • the power is inversely proportional and proportional to the power consumption of the terminal.
  • an allocation rule is proposed, that is, the lower the power of the terminal, the higher the priority, and the higher the power consumption of the terminal is, the higher the priority is.
  • the low power and high power consumption of the terminal means that the terminal is in urgent need of charging.
  • the terminal with higher priority gets more power, so that the terminal that is in urgent need of charging is too low.
  • the step of determining the priority comprises: obtaining a time when the terminal enters the wireless charging area; determining a priority of the terminal according to a time of entering the wireless charging area.
  • the priority is determined according to the time when the terminal enters the wireless charging area, and the highest priority is set for the terminal that first enters the wireless charging area according to the principle of first in first out, and the power allocated by the remaining terminals is sequentially stepped. For example, there are 5 terminals for charging, and the charging power can be distributed according to 30%, 25%, 20%, 15%, 10%.
  • the step of determining the priority comprises: acquiring power consumption and current power of the terminal, and calculating, according to the power consumption of the terminal, the current power, the magnitude of the charging current, and the required rated power, the terminal is fully charged.
  • the time required; the priority of the terminal is determined according to the time required for the terminal to be fully charged.
  • the priority of the terminal is determined according to the time required for the terminal to be fully charged, and the terminal with the shortest time required for full charge can be set to the highest priority, which can ensure high charging efficiency.
  • the step of determining the priority of the terminal in the wireless charging area of the charger includes: when the terminal enters the wireless charging area, determining that the wireless charging is already in the wireless charging area Whether the number of terminals in the electrical area is greater than a preset value; when the judgment result is yes, the terminal is prompted.
  • a prompt is required.
  • the terminal in the wireless charging area when the terminal in the wireless charging area is fully charged, when a new terminal enters the wireless charging area, when the number of terminals in the wireless charging area decreases, and/or in the last time determination
  • the time interval of the priority of the terminal is predetermined, the priority of the terminal that is not fully charged in the wireless charging area is re-determined.
  • the priority is dynamically changeable, and the priority is re-determined when the charging power needs to be redistributed.
  • the general way to adjust the radiated power of the antenna is to control the radiated power of the antenna by controlling the output power of the power amplifier amplifier PA (Power Amplifier).
  • PA Power Amplifier
  • the antenna is fixed by a bracket, and the rotation of the bracket is driven by a motor to adjust the radiation direction of the antenna.
  • the directional antenna is characterized in that the antenna has good transmitting and receiving characteristics in a certain direction or a certain direction, but the transmitting and receiving characteristics in other directions are good. Very poor, so you need to adjust the radiation direction of the antenna through the motor adjustment bracket to align it with the charging terminal.
  • the power distribution can be optimized when multiple terminals simultaneously perform wireless charging, thereby improving the user experience.
  • FIG. 1 shows a schematic diagram of a wireless charger in accordance with an embodiment of the present invention
  • FIG. 2A to 2C are schematic diagrams of a controller in the wireless charger of the embodiment shown in FIG. 1;
  • FIG. 3A is a schematic diagram showing charging of the terminal by the wireless charger of the embodiment shown in FIG. 3B is a schematic diagram showing the wireless charger antenna direction control of the embodiment shown in FIG. 1.
  • FIG. 4 is a flowchart showing a multi-terminal wireless charging method according to an embodiment of the present invention.
  • FIG. 5 is a schematic diagram showing an embodiment of an allocation rule in the embodiment shown in FIG. 4.
  • FIG. 6A is a flowchart showing wireless charging of a terminal according to an embodiment of the present invention
  • FIG. 6B is a diagram showing A flowchart of a multi-terminal wireless charging method of another embodiment of the invention. detailed description
  • FIG. 1 shows a schematic diagram of a wireless charger in accordance with an embodiment of the present invention.
  • a wireless charger 100 includes: a controller 102, configured to determine a priority of at least two terminals in a wireless charging area of a wireless charger, in order of priority is at least The two terminals allocate charging power.
  • the power distribution can be optimized by acquiring the priority of the terminal, the charging efficiency of the terminal with a relatively high priority is improved, and the user experience is improved.
  • the controller 102 may include: a state obtaining unit 1020, acquiring power consumption and current power of the terminal; a priority determining unit 1022, according to a predetermined allocation rule, and power consumption and current of the terminal The power determines the priority of the terminal.
  • a predetermined allocation rule may be stored in the terminal, where the allocation rule relates to And the power consumption and power consumption of the terminal are prioritized according to the current power consumption and power of the acquired terminal in combination with the pre-stored allocation rule.
  • the predetermined allocation rule adopted by the priority determining unit 1022 includes that the priority of the terminal is inversely proportional to the current power of the terminal, and is proportional to the power consumption of the terminal, as shown in FIG. 5.
  • an allocation rule is proposed, that is, the lower the power of the terminal, the higher the priority, and the higher the power consumption of the terminal is, the higher the priority is.
  • the low power and high power consumption of the terminal means that the terminal is in urgent need of charging.
  • the terminal with higher priority gets more power, so that the terminal that is in urgent need of charging is too low.
  • the controller 102 may include: a time acquiring unit 1024, acquiring a time when the terminal enters the wireless charging area; and a priority determining unit 1022, determining a priority of the terminal according to a time of entering the wireless charging area. .
  • the priority is determined according to the time when the terminal enters the wireless charging area, and the highest priority is set for the terminal that first enters the wireless charging area according to the principle of first in first out, and the power allocated by the remaining terminals is sequentially stepped. For example, there are 5 terminals to charge, and the 5 terminals are prioritized according to the chronological order of entering the wireless charging area, and the charging power can be distributed according to 30%, 25%, 20%, 15%, 10%.
  • the controller 102 may include: a calculating unit 1026, acquiring power consumption and current power of the terminal, and calculating based on power consumption of the terminal, current power, magnitude of charging current, and required power rating The time required for the terminal to be fully charged; the priority determining unit 1022 determines the priority of the terminal according to the time required for the terminal to be fully charged according to the calculation unit.
  • the priority of the terminal is determined according to the time required for the terminal to be fully charged, and the terminal with the shortest time required for charging can be set to the highest priority, thereby ensuring high charging efficiency and shortening the terminal occupying the wireless charger 100. time.
  • controllers shown in Figs. 2A to 2C are separate embodiments, but the functional modules may be combined with each other to form other embodiments.
  • the controller 102 may further include: in addition to the state obtaining unit 1020, the level determining unit 1022 is further configured to consume power of at least two terminals acquired by the state acquiring unit 1020.
  • the priority of the terminal is further determined according to the time of entering the wireless charging area.
  • the power consumption of the terminal and the current power are first obtained by the state acquiring unit 1020.
  • the priority cannot be determined according to the power consumption and the current power.
  • the priority determining unit 1022 determines the priority of the terminal according to the time of entering the wireless charging area.
  • the state obtaining unit 1020 in the controller 102 is further configured to acquire the magnitude of the charging current of the terminal and the required rated power; the controller 102 further includes: the calculating unit 1026, based on the power consumption of the terminal, the current power, and the charging current. The size and the required rated power are used to calculate the time required for the terminal to be fully charged; the priority determining unit 1022 is further configured to: when the power consumption of the at least two terminals acquired by the state acquiring unit 1020 is the same as the current power (in the power consumption and When the current power is used to determine the priority, the priority of the terminal is determined according to the time required by the computing unit 1026 to fully charge the terminal.
  • the priority determining unit 1022 cannot determine the priority of the terminal, and the state acquiring unit 1020 needs to further acquire the charging current of the terminal and the required rating.
  • the power, calculation unit 1026 calculates the required charging time according to the magnitude of the charging current of the terminal and the required rated power, and determines the priority of the terminal according to the charging time.
  • the controller 102 may include: a state obtaining unit 1020, configured to acquire power consumption and current power of the terminal; and a calculating unit 1026, calculate the terminal based on power consumption of the terminal, current power, magnitude of charging current, and required power rating The time required to fully charge the time; the time obtaining unit 1024, obtaining the time when the terminal enters the wireless charging area; the priority determining unit 1022 is further configured to: calculate the power consumption of the at least two terminals acquired by the state acquiring unit 1020 and the current power is the same and calculate When the time required for the unit to calculate at least two terminals to be fully charged is the same (ie, the priority cannot be determined by the power consumption and the current power, and the priority required for the full charge cannot be determined), according to the entry into the wireless charging area. The time determines the priority of the terminal.
  • the time of accessing the wireless charging area can be determined. To determine the priority of the terminal.
  • the wireless charger 100 in the above embodiments may further include: a determining unit 104, when the terminal enters the wireless charging area, determining whether the number of terminals that are in the wireless charging area is greater than a preset value; When the judgment result of the unit is YES, the terminal is prompted.
  • a determining unit 104 when the terminal enters the wireless charging area, determining whether the number of terminals that are in the wireless charging area is greater than a preset value; When the judgment result of the unit is YES, the terminal is prompted.
  • the controller 102 in the foregoing embodiments is further configured to: when the terminal in the wireless charging area is fully charged, when a new terminal enters the wireless charging area, when the number of terminals in the wireless charging area decreases, and/or The priority of the terminal that is not fully charged in the wireless charging area is re-determined at a predetermined time interval from the last priority of the determined terminal.
  • the priority is dynamically changeable, and when the terminal is fully charged, or the terminal is taken away or entered by the new terminal, the priority is re-allocated for each terminal in the current wireless charging area. Charge electrical energy to accommodate changes in the charging environment.
  • the controller 102 adjusts the direction of the charging antenna 108 to align it with the receiving antenna 202 of the terminal 200 for charging.
  • the controller 102 adjusts each antenna to each terminal and adjusts the radiation power of the corresponding antenna according to the priority of the terminal.
  • the charging power allocated to each terminal is adjusted by adjusting the radiation power of each antenna according to the priority.
  • the general way to adjust the radiated power of the antenna is to control the radiated power of the antenna by controlling the output power of the power amplifier amplifier PA (Power Amplifier).
  • PA Power Amplifier
  • the wireless charger 100 may further include: a bracket 112 for fixing the antenna 108; a motor 110 connected to the bracket 1 12 and the controller 102, driven according to a control signal from the controller 102.
  • the rotation of the bracket 112 adjusts the radiation direction of the antenna 108.
  • the antenna 108 of the wireless charger 100 can adopt a directional antenna, and the directional antenna is characterized in that the antenna has good transmitting and receiving characteristics in a certain direction or in several directions, but The transmit and receive characteristics in other directions are very poor, so the bracket needs to be adjusted by the motor 110
  • a multi-terminal wireless charging method includes:
  • Step 402 Determine a priority of the terminal in the wireless charging area of the wireless charger; Step 404 allocate charging power to the terminal in the order of priority.
  • the power distribution can be optimized by acquiring the priority of the terminal, the charging efficiency of the terminal with a relatively high priority is improved, and the user experience is improved.
  • the step of determining the priority comprises: obtaining the power consumption of the terminal and the current power; determining the priority of the terminal according to the predetermined allocation rule and the power consumption of the terminal and the current power.
  • a predetermined allocation rule may be stored in the terminal, where the allocation rule relates to power consumption and power consumption of the terminal, and the priority is obtained according to the current power consumption and power of the acquired terminal in combination with the pre-stored allocation rule.
  • the predetermined allocation rule includes that the priority of the terminal is inversely proportional to the current power of the terminal, and is proportional to the power consumption of the terminal.
  • an allocation rule is proposed, that is, the lower the power of the terminal, the higher the priority, and the higher the power consumption of the terminal is, the higher the priority is.
  • the low power and high power consumption of the terminal means that the terminal is in urgent need of charging.
  • the terminal with higher priority gets more power, so that the terminal that is in urgent need of charging is too low. See the chart shown in Figure 5 for a specific implementation of the distribution rules. For example, terminal A has a battery charge of 36%, is in a call, and consumes 230 mA. The terminal A has a priority of 3 by retrieving the chart.
  • the wireless charger charging power distribution is appropriately adjusted, so that the terminal A can obtain more than other terminals. The power, and vice versa.
  • the step of determining the priority comprises: obtaining a time when the terminal enters the wireless charging area; determining a priority of the terminal according to the time of entering the wireless charging area.
  • the priority is determined according to the time when the terminal enters the wireless charging area, and the highest priority is set for the terminal that first enters the wireless charging area according to the principle of first in first out, and the power allocated by the remaining terminals is sequentially stepped. For example, there are 5 terminal chargings, and the 5 terminals are prioritized according to the chronological order of entering the wireless charging area, and the charging power can be distributed according to 30%, 25%, 20%, 15%, 10%.
  • the step of determining the priority comprises: obtaining the power consumption of the terminal and the current power, calculating the time required for the terminal to be fully charged based on the power consumption of the terminal, the current power, the magnitude of the charging current, and the required rated power; The time required for the power determines the priority of the terminal.
  • the priority of the terminal is determined according to the time required for the terminal to be fully charged, and the terminal with the shortest time required for full charge can be set as the highest priority, thereby ensuring high charging efficiency and shortening the terminal occupying the wireless charger. time.
  • the step of determining the priority of the terminal in the wireless charging area of the charger includes: when the terminal enters the wireless charging area, determining whether the number of terminals that are in the wireless charging area is greater than a preset value; when the determination result is yes , prompt the terminal.
  • the priority of the terminal that is not fully charged in the wireless charging area is re-determined.
  • the priority is dynamically changeable, and when the terminal is fully charged, or the terminal is taken away or entered by the new terminal, the priority is re-allocated for each terminal in the current wireless charging area. Re-prioritize when charging power to accommodate changes in the charging environment.
  • each antenna is adjusted to be aligned with each terminal, and the radiation power of the corresponding antenna is adjusted according to the priority of the terminal.
  • the charging power allocated to each terminal is adjusted by adjusting the radiation power of each antenna according to the priority.
  • the general way to adjust the antenna radiated power is through control.
  • the output power of the antenna output amplifier PA Power Amplifier
  • PA Power Amplifier
  • the antenna is fixed by a bracket, and the rotation of the antenna is adjusted by the rotation of the motor to drive the bracket.
  • the directional antenna is characterized in that the antenna has good transmitting and receiving characteristics in a certain direction or in several directions, but the transmitting and receiving characteristics in other directions are good. Very poor, so you need to adjust the radiation direction of the antenna through the motor adjustment bracket to align it with the charging terminal.
  • FIG. 6A shows a flow chart of a terminal performing wireless charging in accordance with an embodiment of the present invention. Referring to FIG. 6A, the following process is included on the terminal side:
  • Step 630 the terminal initializes wireless charging
  • Step 632 The terminal establishes a connection with the wireless charger.
  • Step 634 the terminal sends the current time, current battery power and power consumption information to the wireless charger;
  • Step 636 determining whether it is necessary to wait in line, and then continuing to wait, otherwise entering the step
  • Step 638 the terminal is charged by the wireless charger
  • Step 640 determining whether the battery is fully charged, if yes, proceeding to step 642, otherwise continuing to charge; Step 642, the terminal is fully charged, and sending a full-charge notification to the wireless charger.
  • Step 602 Set a priority determination manner, for example, a determination mode, such as a power consumption principle: the priority of the terminal is inversely proportional to the current power of the terminal, and is proportional to the power consumption of the terminal; the first in first out principle: according to the wireless access The time of the charging area determines the priority of the terminal, etc.; Step 604, it is determined whether a new terminal enters the wireless charging area of the wireless charger. If the determination result is yes, then the process proceeds to step 606. If the determination result is no, the detection is performed. The new terminal enters the wireless charging area;
  • a determination mode such as a power consumption principle: the priority of the terminal is inversely proportional to the current power of the terminal, and is proportional to the power consumption of the terminal; the first in first out principle: according to the wireless access
  • Step 604 it is determined whether a new terminal enters the wireless charging area of the wireless charger. If the determination result is yes, then the process proceeds to step 606. If the determination result is no, the detection is performed. The
  • Step 606 Establish a connection with the newly entered terminal.
  • Step 608 Obtain an entry time, a current power, and power consumption information of the terminal.
  • Step 610 Determine whether the number of terminals has reached the maximum number that the wireless charger can support. If yes, go to step 620, if no, go to step 612; Step 614, otherwise go to step 622;
  • Step 614 Determine the priority of the terminal according to the first-in-first-out manner, and allocate charging power to the terminal, and the advanced terminal allocates relatively more power;
  • Step 616 Determine whether the terminal is fully charged. If yes, go to step 618. If no, go back to step 604; Step 618, stop charging the fully charged terminal, allow the next terminal to enter, and redistribute the power for the remaining terminals. ;
  • Step 620 When the result of the determination in step 610 is YES, send a wait for charging prompt to the terminal; Step 622, when the result of the determination in step 612 is no, determine the priority of the terminal according to the current power and power consumption of the terminal;
  • Step 624 Assign charging power to the terminal according to the priority determined in step 622.
  • the power distribution is optimized according to the power distribution rule, thereby greatly improving the charging efficiency and improving the user experience.

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

Abstract

本发明提供了一种无线充电器，包括：控制器，用于确定处于所述无线充电器的无线充电区域的至少两个终端的优先级，按照所述优先级的顺序为所述至少两个终端分配充电电能。本发明还提出一种多终端无线充电方法。通过本发明的技术方案，在多个终端同时进行无线充电时可以优化电能分配，提高充电效率。

Description

无线充电器和多终端无线充电方法 技术领域
本发明涉及无线充电技术领域， 具体而言， 涉及一种无线充电器和一 种多终端无线充电方法。 背景技术
目前， 手机等终端无线充电技术日趋成熟， 市场前景也越来越明朗。 对于无线充电中的磁共振充电方式， 可实现多个终端同时充电。 在无线充 电器对多终端同时进行充电时， 多终端之间平均分配电能， 这种方式不能 达到电能的最优配置， 使每个终端的充电时间均加长， 使得用户等待时间 太长， 也使得急需充电且功耗大的终端因充电不及时导致低电量。
因此， 需要一种多终端无线充电技术， 在多个终端同时进行无线充电 时可以优化电能分配， 提升用户体验。 发明内容
针对上述问题， 本发明提供了一种多终端无线充电技术， 在多个终端 同时进行无线充电时可以优化电能分配， 提升用户体验。
根据本发明的一个方面， 提出一种无线充电器， 包括： 控制器， 用于 所述优先级的顺序为所述至少两个终端分配充电电能。
由于无线充电器的额定功率是有限的， 当多终端使用同一个无线充电 器同时进行无线充电时就需要为每一个终端分配充电的能量， 而平均分配 充电能量会导致充电效率低下。 在该技术方案中， 可以通过获取终端的优 先级优化电能的分配， 提高充电效率， 提升用户体验。
优选地， 所述控制器包括： 状态获取单元， 获取所述终端的功耗和当 前电量； 优先级确定单元， 根据预定分配规则以及所述终端的功耗和当前 电量确定所述终端的优先级。
在该技术方案中， 终端中可存储一个预定的分配规则， 该分配规则涉 及终端的功耗和电量， 根据获取的终端的当前功耗和电量结合预存的分配 规则得到优先级。 的优先级与所述终端的当前电量成反比例关系， 并与所述终端的功耗成正 比例关系。
在该技术方案中， 提出了一种分配规则， 即终端的电量越少优先级越 高， 同时终端的功耗越大优先级越高。 通常情况下终端的电量低、 功耗大 意味着该终端急需充电， 根据该分配规则使优先级高的终端得到更多的电 量， 即可避免急需充电的终端电量过低。
优选地， 所述控制器包括： 时间获取单元， 获取所述终端进入所述无 线充电区域的时间； 优先级确定单元， 根据进入所述无线充电区域的时间 确定所述终端的优先级。
在该技术方案中， 根据终端进入无线充电区域的时间确定优先级， 可 以按照先进先出的原则为最先进入无线充电区域的终端设置最高优先级， 其余终端分配的电能依次阶梯分布。 例如， 共有 5个终端充电， 可以按照 30%、 25%、 20%、 15%、 10%来分配充电电能。
优选地， 所述控制器包括： 计算单元， 获取所述终端的功耗和当前电 量， 基于所述终端的功耗、 当前电量、 充电电流的大小和所需额定电量计 算出所述终端充满电所需的时间； 优先级确定单元， 根据所述计算单元计 算出的所述终端充满电所需的时间确定所述终端的优先级。
在该技术方案中， 根据终端充满电所需的时间确定终端的优先级， 可 以将充满电所需时间最短的终端设置为最高优先级， 这样可以保证高充电 效率。
在上述任一技术方案中， 优选的， 所述控制器还包括： 时间获取单 用于在所述状态获取单元获取的至少两个终端的功耗和当前电量相同时 (在不能以功耗和当前电量来确定优先级时） ， 进一步根据进入所述无线 充电区域的时间确定所述终端的优先级。
在该技术方案中， 首先由状态获取单元来获取终端的功耗和当前电 量， 在至少两个终端的功耗和当前电量相同时， 无法根据功耗和当前电量 确定优先级， 此时通过时间获取单元来获取终端进入无线充电区域的时 间， 优先级确定单元根据进入无线充电区域的时间来确定终端的优先级。
在上述任一技术方案中， 优选的， 所述状态获取单元还用于获取所述 终端的充电电流的大小和所需额定电量； 所述控制器还包括： 计算单元， 基于所述终端的功耗、 当前电量、 充电电流的大小和所需额定电量计算出 所述终端充满电所需的时间； 所述优先级确定单元还用于在所述状态获取 单元获取的至少两个终端的功耗和当前电量相同时 （在不能以功耗和当前 电量来确定优先级时） ， 根据所述计算单元计算出的所述终端充满电所需 的时间确定所述终端的优先级。
在该技术方案中， 在至少两个终端的功耗和当前电量相同时， 优先级 确定单元无法以此来判定终端的优先级， 此时状态获取单元需进一步获取 终端的充电电流的大小和所需额定电量， 计算单元根据终端的充电电流的 大小和所需额定电量计算出所需充电时间， 根据充电时间的大小来判断终 端的优先级。
在上述技术方案中， 优选的， 所述控制器还包括： 时间获取单元， 获 取所述终端进入所述无线充电区域的时间； 优先级确定单元还用于， 在所 述状态获取单元获取的至少两个终端的功耗和当前电量相同且所述计算单 元计算出的至少两个所述终端充满电所需的时间相同时 （即不能以功耗和 当前电量来确定优先级， 也不能以充满电所需时间来确定优先级） ， 根据 进入所述无线充电区域的时间确定所述终端的优先级。
在既不能以充电时间的长短来确定终端的优先级， 又不能以功耗和当 前电量来确定终端的优先级时， 那么就可以根据接入无线充电区域的时间 来确定终端的优先级。
优选地， 所述无线充电器还包括： 判断单元， 在所述终端进入所述无 线充电区域时， 判断已处于所述无线充电区域的终端数目是否大于预设 值； 提示单元， 在所述判断单元的判断结果为是时， 提示所述终端。 在该技术方案中， 由于无线充电器可以同时支持充电的终端数目是有 限的， 当达到最大可支持数量后再有终端进入无线充电区域后也无法为该 终端充电， 因此需要进行提示。
优选地， 所述控制器还用于在处于所述无线充电区域的终端充满电 时、 有新的终端进入所述无线充电区域时、 在处于所述无线充电区域的终 端的数目减少时和 /或在距上次确定所述终端的优先级的时间间隔预定时 间时， 重新确定处于所述无线充电区域中未充满电的终端的优先级。
在该技术方案中， 优先级是可以动态变化的， 在需要重新分配充电电 能时重新确定优先级。
优选地， 在所述无线充电器包括多个天线时， 所述控制器调整每个所 辐射功率。
在该技术方案中， 根据优先级， 通过调整每个天线的辐射功率来调节 为每个终端分配的充电电能。 目前通用的调整天线辐射功率的方式是通过 控制天线端输出放大器 PA ( Power Amplifier ) 的输出功率来控制天线的 辐射功率。
优选地， 所述无线充电器还包括： 支架， 用于固定所述天线； 电机， 连接至所述支架和所述控制器， 根据来自所述控制器的控制信号驱动所述 支架的转动， 以调整所述天线的辐射方向。
在该技术方案中， 无线充电器的天线需采用定向天线， 定向天线的特 点是天线在某个方向或某几个方向的发射和接收特性很好， 但是， 在其他 方向的发射和接收特性非常差， 因此需要通过电机调节支架转动调整天线 的辐射方向， 使其对准充电终端。
根据本发明的另一方面， 提出一种多终端无线充电方法， 包括： 确定 处于无线充电器的无线充电区域的终端的优先级； 按照所述优先级的顺序 为所述终端分配充电电能。
由于无线充电器的额定功率是有限的， 当多终端使用同一个无线充电 器同时进行无线充电时就需要为每一个终端分配充电的能量， 而平均分配 充电能量会导致充电效率低下。 在该技术方案中， 可以通过获取终端的优 先级优化电能的分配， 提高充电效率， 提升用户体验。
优选地， 确定所述优先级的步骤包括： 获取所述终端的功耗和当前电 量； 根据预定分配规则以及所述终端的功耗和当前电量确定所述终端的优 先级。
在该技术方案中， 终端中可存储一个预定的分配规则， 该分配规则涉 及终端的功耗和电量， 根据获取的终端的当前功耗和电量结合预存的分配 规则得到优先级。 电量成反比例关系， 并与所述终端的功耗成正比例关系。
在该技术方案中， 提出了一种分配规则， 即终端的电量越少优先级越 高， 同时终端的功耗越大优先级越高。 通常情况下终端的电量低、 功耗大 意味着该终端急需充电， 根据该分配规则使优先级高的终端得到更多的电 量， 即可避免急需充电的终端电量过低。
优选地， 确定所述优先级的步骤包括： 获取所述终端进入所述无线充 电区域的时间； 根据进入所述无线充电区域的时间确定所述终端的优先 级。
在该技术方案中， 根据终端进入无线充电区域的时间确定优先级， 可 以按照先进先出的原则为最先进入无线充电区域的终端设置最高优先级， 其余终端分配的电能依次阶梯分布。 例如， 共有 5个终端充电， 可以按照 30%、 25%、 20%、 15%、 10%来分配充电电能。
优选地， 确定所述优先级的步骤包括： 获取所述终端的功耗和当前电 量， 基于所述终端的功耗、 当前电量、 充电电流的大小和所需额定电量计 算出所述终端充满电所需的时间； 根据所述终端充满电所需的时间确定所 述终端的优先级。
在该技术方案中， 根据终端充满电所需的时间确定终端的优先级， 可 以将充满电所需时间最短的终端设置为最高优先级， 这样可以保证高充电 效率。
优选地， 所述确定处于充电器的无线充电区域的终端的优先级的步骤 之前包括： 当所述终端进入所述无线充电区域时， 判断已处于所述无线充 电区域的终端数目是否大于预设值； 当判断结果为是时， 提示所述终端。 在该技术方案中， 由于无线充电器可以同时支持充电的终端数目是有 限的， 当达到最大可支持数量后再有终端进入无线充电区域后也无法为该 终端充电， 因此需要进行提示。
优选地， 在处于所述无线充电区域的终端充满电时、 有新的终端进入 所述无线充电区域时、 在处于所述无线充电区域的终端的数目减少时和 / 或在 巨上次确定所述终端的优先级的时间间隔预定时间时， 重新确定处于 所述无线充电区域中未充满电的终端的优先级。
在该技术方案中， 优先级是可以动态变化的， 在需要重新分配充电电 能时重新确定优先级。
优选地， 在所述无线充电器的天线为多个时， 调整每个所述天线对准 在该技术方案中， 根据优先级， 通过调整每个天线的辐射功率调节为 每个终端分配的充电电能。 目前通用的调整天线辐射功率的方式是通过控 制天线端输出放大器 PA ( Power Amplifier ) 的输出功率来控制天线的辐 射功率。
优选地， 采用支架固定所述天线， 并通过电机驱动所述支架的转动， 以调整所述天线的辐射方向。
在该技术方案中， 由于无线充电器的天线需采用定向天线， 定向天线 的特点是天线在某个方向或某几个方向的发射和接收特性很好， 但是， 在 其他方向的发射和接收特性非常差因此需要通过电机调节支架转动调整天 线的辐射方向， 使其对准充电终端。
通过上述技术方案， 在多个终端同时进行无线充电时可以优化电能分 配， 提升用户体验。 附图说明
图 1示出了根据本发明的实施例的无线充电器的示意图；
图 2A至图 2C是图 1所示实施例的无线充电器中控制器的示意图; 图 3A示出了图 1所示实施例的无线充电器为终端充电的示意图； 图 3B示出了图 1所示实施例的无线充电器天线方向控制的示意图； 图 4 示出了根据本发明的一个实施例的多终端无线充电方法的流程 图；
图 5示出了图 4所示实施例中分配规则的一种实施方式的示意图； 图 6A示出了根据本发明的一实施例的终端进行无线充电的流程图； 图 6B 示出了根据本发明的另一实施例的多终端无线充电方法的流程 图。 具体实施方式
为了能够更清楚地理解本发明的上述目的、 特征和优点， 下面结合附 图和具体实施方式对本发明进行进一步的详细描述。
在下面的描述中阐述了很多具体细节以便于充分理解本发明， 但是， 本发明还可以采用其他不同于在此描述的其他方式来实施， 因此， 本发明 的保护范围不受下面公开的具体实施例的限制。
下面结合附图和实施例对本发明做进一步说明。 需要说明的是， 在不 沖突的情况下， 本申请的实施例及实施例中的特征可以相互组合。
图 1示出了根据本发明的实施例的无线充电器的示意图。
如图 1 所示， 根据本发明的实施例的无线充电器 100 包括： 控制器 102 , 用于确定处于无线充电器的无线充电区域的至少两个终端的优先 级， 按照优先级的顺序为至少两个终端分配充电电能。
由于无线充电器的额定功率是有限的， 当无线充电器为多终端同时进 行无线充电时， 就需要为每一个终端分配充电的能量， 而平均分配充电能 量会导致充电效率低下。 在该技术方案中， 可以通过获取终端的优先级来 优化电能的分配， 提高优先级相对较高的终端的充电效率， 提升用户体 验。
参见图 2A, 在一种实施方式中， 上述控制器 102 可以包括： 状态获 取单元 1020, 获取终端的功耗和当前电量； 优先级确定单元 1022 , 根据 预定分配规则以及该终端的功耗和当前电量确定终端的优先级。
在该技术方案中， 终端中可存储一个预定的分配规则， 该分配规则涉 及终端的功耗和电量， 根据获取的终端的当前功耗和电量结合预存的分配 规则得到优先级。
优选地， 优先级确定单元 1022 采用的预定分配规则包括终端的优先 级与终端的当前电量成反比例关系， 并与终端的功耗成正比例关系， 如图 5所示。
在该技术方案中， 提出了一种分配规则， 即终端的电量越少优先级越 高， 同时终端的功耗越大优先级越高。 通常情况下终端的电量低、 功耗大 意味着该终端急需充电， 根据该分配规则使优先级高的终端得到更多的电 量， 即可避免急需充电的终端电量过低。
参见图 2B , 在另一种实施方式中， 控制器 102 可以包括： 时间获取 单元 1024 , 获取终端进入无线充电区域的时间； 优先级确定单元 1022 , 根据进入无线充电区域的时间确定终端的优先级。
在该技术方案中， 根据终端进入无线充电区域的时间确定优先级， 可 以按照先进先出的原则为最先进入无线充电区域的终端设置最高优先级， 其余终端分配的电能依次阶梯分布。 例如， 共有 5个终端充电， 按照进入 无线充电区域的时间先后顺序对这 5个终端进行优先级排序， 并可以按照 30%、 25%、 20%、 15%、 10%来分配充电电能。
参见图 2C , 在另一种实施方式中， 控制器 102 可以包括： 计算单元 1026 , 获取终端的功耗和当前电量， 基于终端的功耗、 当前电量、 充电电 流的大小和所需额定电量计算出终端充满电所需的时间； 优先级确定单元 1022 , 根据计算单元计算出的终端充满电所需的时间确定终端的优先级。
在该技术方案中， 根据终端充满电所需的时间确定终端的优先级， 可 以将充满电所需时间最短的终端设置为最高优先级， 这样可以保证高充电 效率， 缩短终端占用无线充电器 100的时间。
需说明的是， 图 2A 至图 2C 所示的控制器虽然是分开说明的实施 例， 但其功能模块可以相互组合， 成为其他实施例。
例如， 控制器 102 除了包括状态获取单元 1020之外， 还可以包括： 级确定单元 1022还用于在状态获取单元 1020获取的至少两个终端的功耗 和当前电量相同时 （在不能以功耗和当前电量来确定优先级时） ， 进一步 根据进入无线充电区域的时间确定终端的优先级。
因此， 首先由状态获取单元 1020 来获取终端的功耗和当前电量， 在 至少两个终端的功耗和当前电量相同时， 无法根据功耗和当前电量确定优 先级， 此时通过时间获取单元 1024 来获取终端进入无线充电区域的时 间， 优先级确定单元 1022 根据进入无线充电区域的时间来确定终端的优 先级。
又例如， 控制器 102 中的状态获取单元 1020还用于获取终端的充电 电流的大小和所需额定电量； 控制器 102 还包括： 计算单元 1026 , 基于 终端的功耗、 当前电量、 充电电流的大小和所需额定电量计算出终端充满 电所需的时间； 优先级确定单元 1022还用于在状态获取单元 1020获取的 至少两个终端的功耗和当前电量相同时 （在不能以功耗和当前电量来确定 优先级时） ， 根据计算单元 1026 计算出的终端充满电所需的时间确定终 端的优先级。
因此， 在至少两个终端的功耗和当前电量相同时， 优先级确定单元 1022无法以此来判定终端的优先级， 此时状态获取单元 1020需进一步获 取终端的充电电流的大小和所需额定电量， 计算单元 1026 根据终端的充 电电流的大小和所需额定电量计算出所需充电时间， 根据充电时间的大小 来判断终端的优先级。
再例如， 控制器 102 可以包括： 状态获取单元 1020 , 用于获取终端 的功耗和当前电量； 计算单元 1026 , 基于终端的功耗、 当前电量、 充电 电流的大小和所需额定电量计算出终端充满电所需的时间； 时间获取单元 1024 , 获取终端进入无线充电区域的时间； 优先级确定单元 1022 还用 于， 在状态获取单元 1020 获取的至少两个终端的功耗和当前电量相同且 计算单元计算出的至少两个终端充满电所需的时间相同时 （即不能以功耗 和当前电量来确定优先级， 也不能以充满电所需时间来确定优先级） ， 根 据进入无线充电区域的时间确定所述终端的优先级。
在既不能以充电时间的长短来确定终端的优先级， 又不能以功耗和当 前电量来确定终端的优先级时， 那么就可以根据接入无线充电区域的时间 来确定终端的优先级。
优选地， 上述各实施例中的无线充电器 100 还可以包括： 判断单元 104 , 在终端进入无线充电区域时， 判断已处于无线充电区域的终端数目 是否大于预设值； 提示单元 106 , 在判断单元的判断结果为是时， 提示终 端。
在该技术方案中， 由于无线充电器可以同时支持充电的终端数目是有 限的， 当达到最大可支持数量后， 再有终端进入无线充电区域， 也无法为 该终端充电， 因此需要进行提示。
优选地， 上述各实施例中的控制器 102还用于在处于无线充电区域的 终端充满电时、 有新的终端进入无线充电区域时、 在处于无线充电区域的 终端的数目减少时和 /或在距上次确定终端的优先级的时间间隔预定时间 时， 重新确定处于无线充电区域中未充满电的终端的优先级。
在该技术方案中， 优先级是可以动态变化的， 有终端充满电， 或者终 端被取走或者由新的终端进入时都需要为在当前无线充电区域中的各终端 重新确定优先级， 重新分配充电电能， 以适应充电环境的变化。
参见图 3A, 无线充电器 100为终端 200充电时， 控制器 102调整充 电天线 108的方向， 使其对准终端 200的接收天线 202 , 进行充电。
优选地， 在无线充电器 100包括多个天线时， 控制器 102调整每个天 线对准每个终端， 并根据终端的优先级调节相对应的天线的辐射功率。
在该技术方案中， 根据优先级， 通过调整每个天线的辐射功率来调节 为每个终端分配的充电电能。 目前通用的调整天线辐射功率的方式是通过 控制天线端输出放大器 PA ( Power Amplifier ) 的输出功率来控制天线的 辐射功率。
参见图 3B , 在一种实施方式中， 无线充电器 100 还可以包括： 支架 112 , 用于固定天线 108; 电机 110, 连接至支架 1 12和控制器 102 , 根据 来自控制器 102的控制信号驱动支架 112的转动， 以调整天线 108的辐射 方向。
在该技术方案中， 无线充电器 100的天线 108可采用定向天线， 定向 天线的特点是天线在某个方向或某几个方向的发射和接收特性很好， 但是 在其他方向的发射和接收特性非常差， 因此需要通过电机 110 调节支架
112转动调整天线的辐射方向， 使其对准充电终端。
图 4示出了根据本发明的实施例的多终端无线充电方法的流程图。 如图 4所示， 根据本发明的实施例的多终端无线充电方法包括： 步骤
402 , 确定处于无线充电器的无线充电区域的终端的优先级； 步骤 404 按 照优先级的顺序为终端分配充电电能。
由于无线充电器的额定功率是有限的， 当无线充电器为多终端同时进 行无线充电时， 就需要为每一个终端分配充电的能量， 而平均分配充电能 量会导致充电效率低下。 在该技术方案中， 可以通过获取终端的优先级来 优化电能的分配， 提高优先级相对较高的终端的充电效率， 提升用户体 验。
优选地， 确定优先级的步骤包括： 获取终端的功耗和当前电量； 根据 预定分配规则以及该终端的功耗和当前电量确定终端的优先级。
在该技术方案中， 终端中可存储一个预定的分配规则， 该分配规则涉 及终端的功耗和电量， 根据获取的终端的当前功耗和电量结合预存的分配 规则得到优先级。
优选地， 预定分配规则包括终端的优先级与终端的当前电量成反比例 关系， 并与终端的功耗成正比例关系。
在该技术方案中， 提出了一种分配规则， 即终端的电量越少优先级越 高， 同时终端的功耗越大优先级越高。 通常情况下终端的电量低、 功耗大 意味着该终端急需充电， 根据该分配规则使优先级高的终端得到更多的电 量， 即可避免急需充电的终端电量过低。 参见图 5所示的图表， 为一种分 配规则的具体实施方式。 例如， 终端 A 的电池电量为 36% , 正在通话 中， 功耗为 230mA, 通过检索该图表得到该终端 A的优先级为 3。 检索出 优先级后， 再与其他处于无线充电区域内的终端的优先级比较， 若其优先 级高于其他终端， 则适当调整无线充电器充电电能分配， 使得该终端 A能 获得多于其他终端的电能， 反之亦反。
优选地， 确定优先级的步骤包括： 获取终端进入无线充电区域的时 间； 根据进入无线充电区域的时间确定终端的优先级。 在该技术方案中， 根据终端进入无线充电区域的时间确定优先级， 可 以按照先进先出的原则为最先进入无线充电区域的终端设置最高优先级， 其余终端分配的电能依次阶梯分布。 例如， 共有 5个终端充电， 按照进入 无线充电区域的时间先后顺序对这 5个终端进行优先级排序， 并可以按照 30%、 25%、 20%、 15%、 10%来分配充电电能。
优选地， 确定优先级的步骤包括： 获取终端的功耗和当前电量， 基于 终端的功耗、 当前电量、 充电电流的大小和所需额定电量计算出终端充满 电所需的时间； 根据终端充满电所需的时间确定终端的优先级。
在该技术方案中， 根据终端充满电所需的时间确定终端的优先级， 可 以将充满电所需时间最短的终端设置为最高优先级， 这样可以保证高充电 效率， 缩短终端占用无线充电器的时间。
优选地， 确定处于充电器的无线充电区域的终端的优先级的步骤之前 包括： 当终端进入无线充电区域时， 判断已处于无线充电区域的终端数目 是否大于预设值； 当判断结果为是时， 提示终端。
在该技术方案中， 由于无线充电器可以同时支持充电的终端数目是有 限的， 当达到最大可支持数量后， 再有终端进入无线充电区域也无法为该 终端充电， 因此需要进行提示。
优选地， 在处于无线充电区域的终端充满电时、 有新的终端进入无线 充电区域时、 在处于无线充电区域的终端的数目减少时和 /或在距上次确 定终端的优先级的时间间隔预定时间时， 重新确定处于无线充电区域中未 充满电的终端的优先级。
在该技术方案中， 优先级是可以动态变化的， 有终端充满电， 或者终 端被取走或者由新的终端进入时都需要为在当前无线充电区域中的各终端 重新确定优先级， 重新分配充电电能时重新确定优先级， 以适应充电环境 的变化。
优选地， 在无线充电器的天线为多个时， 调整每个天线对准每个终 端， 并根据终端的优先级调节相对应的天线的辐射功率。
在该技术方案中， 根据优先级， 通过调整每个天线的辐射功率调节为 每个终端分配的充电电能。 目前通用的调整天线辐射功率的方式是通过控 制天线端输出放大器 PA ( Power Amplifier ) 的输出功率来控制天线的辐 射功率。
优选地， 采用支架固定天线， 并通过电机驱动支架的转动， 以调整天 线的辐射方向。
在该技术方案中， 由于无线充电器的天线可采用定向天线， 定向天线 的特点是天线在某个方向或某几个方向的发射和接收特性很好， 但是， 在 其他方向的发射和接收特性非常差因此需要通过电机调节支架转动调整天 线的辐射方向， 使其对准充电终端。
图 6A示出了根据本发明的一实施例的终端进行无线充电的流程图。 参见图 6A, 在终端一侧包括以下流程：
步骤 630, 终端初始化无线充电；
步骤 632 , 终端与无线充电器建立连接；
步骤 634, 终端将当前时间、 当前电池电量和功耗信息发送给无线充 电器；
步骤 636 , 判断是否需要排队等待， 是则继续等待， 否则进入步骤
638;
步骤 638 , 终端通过无线充电器充电；
步骤 640, 判断是否充满电， 是则进入步骤 642, 否则继续充电； 步骤 642 , 终端充满电， 向无线充电器发送以充满电的通知。
参见图 6B, 在无线充电器一侧包括以下流程：
步骤 602 , 设定优先级的判定方式， 例如判定方式例如功耗原则： 终 端的优先级与终端的当前电量成反比例关系， 并与终端的功耗成正比例关 系； 先进先出原则： 根据进入无线充电区域的时间确定终端的优先级等； 步骤 604, 判断是否有新终端进入无线充电器的无线充电区域， 若判 断结果为是， 则进入步骤 606, 若判定结果为否， 则进行检测是否有新终 端进入无线充电区域；
步骤 606, 与新进入的终端建立连接；
步骤 608 , 获取该终端的进入时间、 当前电量和功耗信息；
步骤 610, 判断终端数量是否已达到无线充电器可支持的最大数量， 若是， 则进入步骤 620, 若否， 则进入步骤 612; 步骤 614, 否则进入步骤 622;
步骤 614, 按照先进先出的方式确定终端的优先级， 为终端分配充电 电能， 先进的终端所分配到的电能相对较多；
步骤 616 , 判断终端是否充满电， 若是， 则进入步骤 618 , 若否， 则 回到步骤 604; 步骤 618 , 停止向充满电的终端充电， 允许下一个终端进 入， 为剩下的终端重新分配电能；
步骤 620 , 在步骤 610判断结果为是时， 向终端发送等待充电提示； 步骤 622 , 在步骤 612判断结果为否时， 根据终端的当前电量和功耗 确定终端的优先级；
步骤 624 , 按照步骤 622确定的优先级为终端分配充电电能。
综上， 根据本发明的多终端无线充电方法， 在多个终端同时进行无线 充电时， 按照电能分配规则优化电能分配， 极大提高充电效率， 提升用户 体验。
以上所述仅为本发明的优选实施例而已， 并不用于限制本发明， 对于 本领域的技术人员来说， 本发明可以有各种更改和变化。 凡在本发明的精 神和原则之内， 所作的任何修改、 等同替换、 改进等， 均应包含在本发明 的保护范围之内。

Claims

权 利 要 求 书
1. 一种无线充电器， 其特征在于， 包括： 端的优先级， 按照所述优先级的顺序为所述至少两个终端分配充电电能。
2. 根据权利要求 1 所述的无线充电器， 其特征在于， 所述控制器包 括：
状态获取单元， 获取所述终端的功耗和当前电量；
优先级确定单元， 根据预定分配规则以及所述终端的功耗和当前电量 确定所述终端的优先级。
3. 根据权利要求 2 所述的无线充电器， 其特征在于， 所述优先级确 电量成反比例关系， 并与所述终端的功耗成正比例关系。
4. 根据权利要求 1 所述的无线充电器， 其特征在于， 所述控制器包 括：
时间获取单元， 获取所述终端进入所述无线充电区域的时间； 优先级确定单元， 根据进入所述无线充电区域的时间确定所述终端的 优先级。
5. 根据权利要求 1 所述的无线充电器， 其特征在于， 所述控制器包 括：
计算单元， 获取所述终端的功耗和当前电量， 基于所述终端的功耗、 当前电量、 充电电流的大小和所需额定电量计算出所述终端充满电所需的 时间；
优先级确定单元， 根据所述计算单元计算出的所述终端充满电所需的 时间确定所述终端的优先级。
6. 根据权利要求 1 至 5 中任一项所述的无线充电器， 其特征在于， 还包括：
判断单元， 在所述终端进入所述无线充电区域时， 判断已处于所述无 线充电区域的终端数目是否大于预设值； 提示单元， 在所述判断单元的判断结果为是时， 提示所述终端。
7. 根据权利要求 1 至 5 中任一项所述的无线充电器， 其特征在于， 所述控制器还用于在处于所述无线充电区域的终端充满电时、 有新的终端 进入所述无线充电区域时、 在处于所述无线充电区域的终端的数目减少时 和 /或在距上次确定所述终端的优先级的时间间隔预定时间时， 重新确定 处于所述无线充电区域中未充满电的终端的优先级。
8. 根据权利要求 1 至 5 中任一项所述的无线充电器， 其特征在于， 在所述无线充电器包括多个天线时， 所述控制器调整每个所述天线对准每
9. 根据权利要求 8所述的无线充电器， 其特征在于， 还包括： 支架， 用于固定所述天线；
电机， 连接至所述支架和所述控制器， 根据来自所述控制器的控制信 号驱动所述支架的转动， 以调整所述天线的辐射方向。
10. 一种多终端无线充电方法， 其特征在于， 包括：
确定处于无线充电器的无线充电区域的终端的优先级；
按照所述优先级的顺序为所述终端分配充电电能。
11. 根据权利要求 10 所述的多终端无线充电方法， 其特征在于， 确 定所述优先级的步骤包括：
获取所述终端的功耗和当前电量；
根据预定分配规则以及所述终端的功耗和当前电量确定所述终端的优 先级。
12. 根据权利要求 11 所述的多终端无线充电方法， 其特征在于， 所 述预定分配规则包括所述终端的优先级与所述终端的当前电量成反比例关 系， 并与所述终端的功耗成正比例关系。
13. 根据权利要求 10 所述的多终端无线充电方法， 其特征在于， 确 定所述优先级的步骤包括：
获取所述终端进入所述无线充电区域的时间；
根据进入所述无线充电区域的时间确定所述终端的优先级。
14. 根据权利要求 10 所述的多终端无线充电方法， 其特征在于， 确 定所述优先级的步骤包括：
获取所述终端的功耗和当前电量， 基于所述终端的功耗、 当前电量、 充电电流的大小和所需额定电量计算出所述终端充满电所需的时间；
根据所述终端充满电所需的时间确定所述终端的优先级。
15. 根据权利要求 10至 14中任一项所述的多终端无线充电方法， 其 特征在于， 所述确定处于充电器的无线充电区域的终端的优先级的步骤之 前包括：
当所述终端进入所述无线充电区域时， 判断已处于所述无线充电区域 的终端数目是否大于预设值；
当判断结果为是时， 提示所述终端。
16. 根据权利要求 10至 14中任一项所述的多终端无线充电方法， 其 特征在于， 在处于所述无线充电区域的终端充满电时、 有新的终端进入所 述无线充电区域时、 在处于所述无线充电区域的终端的数目减少时和 /或 在距上次确定所述终端的优先级的时间间隔预定时间时， 重新确定处于所 述无线充电区域中未充满电的终端的优先级。
17. 根据权利要求 10至 14中任一项所述的多终端无线充电方法， 其 特征在于， 在所述无线充电器的天线为多个时， 调整每个所述天线对准每
18. 根据权利要求 17 所述的多终端无线充电方法， 其特征在于， 采 用支架固定所述天线， 并通过电机驱动所述支架的转动， 以调整所述天线 的辐射方向。
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