CN114844156A - Wireless charging method and device - Google Patents

Wireless charging method and device Download PDF

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Publication number
CN114844156A
CN114844156A CN202210520838.8A CN202210520838A CN114844156A CN 114844156 A CN114844156 A CN 114844156A CN 202210520838 A CN202210520838 A CN 202210520838A CN 114844156 A CN114844156 A CN 114844156A
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China
Prior art keywords
charged
charging
target
receiving
information
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Pending
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CN202210520838.8A
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Chinese (zh)
Inventor
肖桐
靳邵云
王州龙
李天石
苏立轩
马九洋
刘明端
张源
付茂金
张秀广
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China Academy of Railway Sciences Corp Ltd CARS
Signal and Communication Research Institute of CARS
Beijing Ruichi Guotie Intelligent Transport Systems Engineering Technology Co Ltd
Beijing Huatie Information Technology Co Ltd
Original Assignee
China Academy of Railway Sciences Corp Ltd CARS
Signal and Communication Research Institute of CARS
Beijing Ruichi Guotie Intelligent Transport Systems Engineering Technology Co Ltd
Beijing Huatie Information Technology Co Ltd
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Application filed by China Academy of Railway Sciences Corp Ltd CARS, Signal and Communication Research Institute of CARS, Beijing Ruichi Guotie Intelligent Transport Systems Engineering Technology Co Ltd, Beijing Huatie Information Technology Co Ltd filed Critical China Academy of Railway Sciences Corp Ltd CARS
Priority to CN202210520838.8A priority Critical patent/CN114844156A/en
Publication of CN114844156A publication Critical patent/CN114844156A/en
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/00032—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange
    • H02J7/00034—Charger exchanging data with an electronic device, i.e. telephone, whose internal battery is under charge
    • 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
    • H02J50/40—Circuit arrangements or systems for wireless supply or distribution of electric power using two or more transmitting 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
    • H02J50/80—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
    • H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
    • 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
    • H02J7/0048—Detection of remaining charge capacity or state of charge [SOC]
    • 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
    • H02J7/007—Regulation of charging or discharging current or voltage
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

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

Abstract

The invention provides a wireless charging method and a device, wherein the method is applied to a charging platform, the charging platform is in communication connection with a plurality of devices to be charged, the charging platform comprises a transmitting coil, the devices to be charged comprise a receiving coil, and the method comprises the following steps: receiving equipment information sent by a plurality of equipment to be charged; when the electric quantity information of the target device to be charged is lower than a first threshold value, determining the charging information and the charging time of the target device to be charged from a target time period; sending the charging information and the charging time to the target equipment to be charged based on the equipment identification of the target equipment to be charged; receiving feedback information sent by target equipment to be charged, and determining the transmitting parameters of the transmitting coil based on the feedback information; the method can select proper charging time for different communication devices to avoid the influence of power supply in the peak period on the power supply efficiency, and can match the charging time for each communication device according to the difference of the receiving coils of each communication device, thereby reducing the loss of electric energy.

Description

Wireless charging method and device
Technical Field
The invention belongs to the technical field of wireless charging, and particularly relates to a wireless charging method and device.
Background
A large amount of railway equipment is arranged in a railway communication signal machine room, and the normal power supply of the equipment is very important for safe railway driving.
In the traditional power supply technology, various cables are usually configured for increasing the number of electric equipment, but the wiring process is very complicated, the subsequent maintenance and repair are inconvenient, and more resources are consumed; the novel power supply technology dissipates heat slowly when a plurality of communication signal devices are charged, the electric energy is seriously lost in the transmission process, the charging efficiency is reduced, and more resources are required to be consumed to supply power for the communication signal devices.
Disclosure of Invention
The invention provides a wireless charging method and a wireless charging device, which are used for overcoming the defects of low charging efficiency and huge energy consumption caused by slow heat dissipation and serious electric energy loss when a plurality of communication signal devices are powered in the prior art, and improving the power supply efficiency of railway communication signal devices.
The invention provides a wireless charging method, which is applied to a charging platform, wherein the charging platform is in communication connection with a plurality of devices to be charged, the charging platform comprises a transmitting coil, the devices to be charged comprise a receiving coil, and the method comprises the following steps:
receiving equipment information sent by a plurality of equipment to be charged, wherein the equipment information comprises equipment identification and electric quantity information;
under the condition that the electric quantity information of a target device to be charged in the plurality of devices to be charged is lower than a first threshold value, determining the charging information and the charging time of the target device to be charged from a target time period;
sending the charging information and the charging time to the target device to be charged based on the device identifier of the target device to be charged, wherein the charging time is used for indicating the target device to be charged to start a charging function in the charging time;
and receiving feedback information sent by the target device to be charged, and determining the transmitting parameters of the transmitting coil based on the feedback information, wherein the transmitting parameters are matched with the receiving coil.
According to a wireless charging method provided by the invention, the determining of the charging information and the charging time from the target time period comprises the following steps:
determining the duration of the target device to be charged based on the electric quantity information;
the target time period is determined based on the endurance time period, and the charging time is determined from the electricity utilization valley period within the target time period.
According to a wireless charging method provided by the present invention, the determining charging information and charging time from a target time period further includes:
determining the duration of the target device to be charged based on the electric quantity information, and determining the target time period based on the duration;
under the condition that the equipment to be charged has a plurality of charging records, obtaining an energy consumption curve of the equipment to be charged according to the charging records;
determining the charging time of the device to be charged in the target time period based on the energy consumption curve.
According to the wireless charging method provided by the invention, the target devices to be charged comprise a plurality of devices, the feedback information comprises receiving parameters of receiving coils corresponding to the target devices to be charged, the transmitting parameters comprise a target interval under the condition that the maximum difference value of the receiving parameters is smaller than a second threshold, and the receiving parameters are all in the target interval.
According to the wireless charging method provided by the invention, the target devices to be charged comprise a plurality of devices, the feedback information comprises receiving parameters of receiving coils corresponding to the target devices to be charged, and the transmitting parameters comprise the receiving parameters corresponding to the receiving coils of the target devices to be charged and corresponding charging time under the condition that the maximum difference value of the receiving parameters is smaller than a second threshold value.
According to the wireless charging method provided by the invention, the transmitting parameter and the receiving parameter of the receiving coil are both at least one of capacitance, inductance or frequency.
The invention also provides a wireless charging device, which is applied to a charging platform, wherein the charging platform is in communication connection with a plurality of devices to be charged, the charging platform comprises a transmitting coil, the devices to be charged comprise a receiving coil, and the device comprises:
the device comprises a receiving module, a charging module and a charging module, wherein the receiving module is used for receiving device information sent by a plurality of devices to be charged, and the device information comprises device identification and electric quantity information;
the first processing module is used for determining the charging information and the charging time of the target device to be charged in a target time period under the condition that the electric quantity information of the target device to be charged in the plurality of devices to be charged is lower than a first threshold value;
a sending module, configured to send the charging information and the charging time to the target device to be charged based on a device identifier of the target device to be charged, where the charging time is used to indicate that the target device to be charged starts a charging function in the charging time;
and the second processing module is used for receiving feedback information sent by the target device to be charged and determining the transmitting parameters of the transmitting coil based on the feedback information, wherein the transmitting parameters are matched with the receiving coil.
The present invention also provides an electronic device, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements any one of the above wireless charging methods when executing the program.
The present invention also provides a non-transitory computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements a wireless charging method as described in any of the above.
The present invention also provides a computer program product comprising a computer program which, when executed by a processor, implements a wireless charging method as described in any of the above.
The invention provides a wireless charging method and a wireless charging device, wherein charging information and charging time corresponding to equipment to be charged are respectively obtained by receiving equipment identifiers and electric quantity information sent by a plurality of equipment to be charged; according to the method, the appropriate charging time can be selected for different communication signal devices, so that the influence of power supply in the peak period on the power supply efficiency is avoided, meanwhile, the matching charging energy can be matched for each communication signal device according to the difference of the receiving coils of each communication signal device, and the loss of electric energy is reduced.
Drawings
In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed for the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
Fig. 1 is a schematic flowchart of a wireless charging method according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a device to be charged according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a charging platform according to an embodiment of the present invention;
FIG. 4 is an interaction diagram for guiding magnetic flux to charge energy according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a wireless charging apparatus according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of an electronic device provided in the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The following describes a wireless charging method provided by an embodiment of the present invention with reference to fig. 1, including:
step 110, receiving device information sent by a plurality of devices to be charged, where the device information includes a device identifier and power information.
It should be noted that the device to be charged may be an internet of things device that performs wireless charging by receiving magnetic field change information, for example, a railway communication signal device that carries a receiving coil, and when electromagnetic waves emitted by a transmitting coil of the charging device are transmitted to the receiving coil of the communication signal device through near field induction, the communication signal device is charged, or may be an electric device that is charged by using a wire, such as a communication signal device that is connected by a cable for power supply in railway operations.
In this step, the device identifier may be a communication address of the device to be charged, or an electronic tag or serial number of the device to be charged, and is used to distinguish differences between the devices to be charged; the electric quantity information is the residual electric quantity of the electric appliance on the equipment to be charged and is detected by a self-checking circuit of the equipment to be charged.
In the step, the charging platform receives the equipment identification and the electric quantity information of the equipment to be charged, and is used for calculating the electric energy to be supplemented and the charging time for each equipment; the charging platform and the equipment to be charged establish communication connection in a mode of transmitting signals through antennas on the wireless communication circuit, and electromagnetic information sent by a transmitting coil of the charging platform is received through receiving coils of the plurality of equipment to be charged, so that the plurality of equipment to be charged are charged wirelessly.
In the embodiment shown in fig. 2, the device to be charged comprises a receiving coil, a first control circuit, a rectifying circuit, a self-checking circuit, a wireless communication circuit, a load and a first communication circuit; the receiving coil is a PCB integrated coil and is used for receiving parameter information transmitted by a transmitting coil of the charging platform; the first control circuit is used for controlling the timing starting of the self-checking circuit and the regulation rectifying circuit and controlling the signal receiving and transmitting process with the charging platform; the rectifying circuit is used for converting the received alternating current into unidirectional pulsating direct current; the self-checking circuit is used for detecting the electric quantity of an electric appliance on a load; the load is a nickel-hydrogen battery which is not easy to explode, and continuously provides electric energy for the equipment to be charged.
In this embodiment, after the self-checking circuit of the device to be charged acquires the power information, the first control circuit sends the power information and the device address of the device to the charging platform through the antenna of the first wireless communication circuit, and the antenna in the second wireless communication circuit of the charging platform receives the corresponding power information and the device address.
In this embodiment, the charging platform may be installed at the bottom of the communication signal device, or may be vertically installed on the communication signal device; the charging platform can be arranged on the same side of the communication signal device with the device to be charged and also can be arranged on two sides of the communication signal device with the device to be charged.
In some embodiments, before receiving the device information sent by the multiple devices to be charged, the vertical height and the vertical offset angle between the charging platform and the devices to be charged may be adjusted to the target vertical height and the target vertical offset angle, respectively.
In this embodiment, the target vertical height may range from 0cm to 15cm, and the target vertical offset angle may range from 0 ° to 45 °.
In this embodiment, before receiving the device information transmitted by the plurality of devices to be charged, the vertical height and the vertical offset angle between the charging platform and the devices to be charged are adjusted to 10cm and 20 °, respectively.
And 120, under the condition that the electric quantity information of the target device to be charged in the plurality of devices to be charged is lower than a first threshold value, determining the charging information and the charging time of the target device to be charged from the target time period.
In this step, the device to be charged may be an internet of things device that performs wireless charging by receiving magnetic field change information, the target device to be charged is one or more of the multiple devices to be charged, and the device to be charged corresponding to the device to be charged when the electric quantity information of each target device to be charged is lower than a first threshold value is taken as the target device to be charged.
In this step, the target time period is determined by the duration of the device to be charged, for example, the target time period may be within several hours or several days, and is determined according to the duration requirement of the device to be charged.
In this step, the charging information of the target device to be charged may be the electric energy required to fully charge the target device to be charged or to be higher than a certain electric quantity level, and the charging time is the time for charging the target device to be charged, may also be the current time, and may also be other times on the premise of ensuring that the target device to be charged is not powered off; the charging time may be a time period set manually; for example, the period of time of power consumption peak or the period of time of power consumption valley may be staggered, or may be a certain optimal solution obtained by performing statistical analysis on the historical charging record of the charging device.
In this embodiment, if the electric quantity of the device 1 is 1500mA and the electric quantity of the device 2 is 1600mA, both of which are lower than 2000mA (first threshold), it indicates that the device 1 and the device 2 are target devices to be charged, 3500mA is required when the device 1 is fully charged and 3400mA is required when the device 2 is fully charged according to the current reserves of the device 1 and the device 2, the device 1 starts to be charged after half an hour, and the device 2 starts to be charged after 20 minutes.
And step 130, based on the device identifier of the target device to be charged, sending the charging information and the charging time to the target device to be charged, wherein the charging time is used for indicating the target device to be charged to start a charging function in the charging time.
In this step, the device to be charged may be an internet of things device that performs wireless charging by receiving magnetic field change information; and sending the charging information and the charging time of each target device to be charged obtained by the charging platform to the corresponding target device to be charged according to the device identification, wherein each charging device can start the charging function for charging in the charging time.
In this embodiment, the target device to be charged may select to turn on the charging function to receive charging during the charging time, or may select not to turn on the charging function during the corresponding charging time.
In the embodiment shown in fig. 3, the charging platform comprises a first control circuit, an inverter, a power amplifier, a matching circuit, a wireless communication circuit, and a transmitting coil; the transmitting line is a large-area PCB integrated coil, and a user provides transmitting parameter information for receiving coils of different devices to be charged; the inverter can be used for inverting the light source and converting low-voltage alternating current into direct current; the power amplifier can convert the high and low voltage signals into high voltage and large current signals without distortion; the matching circuit, the inverter and the power amplifier jointly form an oscillator of the electric platform, and the oscillator is used for generating signals with different frequencies.
In this embodiment, after determining the charging information and the charging time of the device 1 and the device 2, the device to be charged sends the charging information and the charging time corresponding to the device 1 and the device 2 to the device to be charged with the corresponding address through the antenna of the second communication circuit, and the antenna of the first communication circuit of the device 1 and the device 2 receives the corresponding charging information and the corresponding charging time.
In some embodiments, when the target charging device selects to confirm charging, the feedback information of confirming charging is sent to the charging platform.
In this embodiment, the feedback information may be prompt information for agreeing to charge, for example, when the charging platform sends the charging energy information and the charging time to the target device to be charged according to the device identifier, and the target charging device agrees to charge, the charging platform records the information and sends the transmission frequency to the receiving coil of the target device to be charged at the corresponding charging time; the feedback information may also be receiving parameters of the receiving coil of the target charging device, such as receiving frequency, capacitance, resistance, and the like of the receiving coil of the target device to be charged.
And 140, receiving feedback information of the target device to be charged, and determining the transmitting parameters of the transmitting coil based on the feedback information, wherein the transmitting parameters are matched with the receiving coil.
In this step, the device to be charged may be an internet of things device that performs wireless charging by receiving magnetic field change information; the feedback information may be reception parameters of a receiving coil of the target charging device, such as a reception frequency, a capacitance, a resistance, and the like of the receiving coil.
In this step, the matching of the transmission parameter and the receiving coil means that the value of the transmission parameter may be a set of values of the receiving parameters corresponding to a plurality of different receiving coils, for example, the receiving frequency of the device 1 is 0Hz-100Hz, the receiving frequency of the device 2 is 200Hz-300Hz, and since the difference between the two receiving frequencies is small, the transmitting frequency corresponding to the transmission coil may be 0Hz-300Hz, and the device 1 and the device 2 may be charged respectively by using the transmitting frequency.
In some embodiments, the transmission parameters are matched with the receiving coils, which may also mean that there are multiple kinds of transmission parameters, and the transmission parameters are determined by the receiving parameters corresponding to different receiving coils, for example, the receiving frequency of the device 1 is 0Hz to 100Hz, and the receiving frequency of the device 2 is 1500Hz to 2000Hz, and since the difference between the two receiving frequencies is large, the transmitting coils may respectively charge the device 1 and the device 2 with the transmission parameters having the frequencies of 0Hz to 100Hz and 1500Hz to 2000Hz at different times.
In some embodiments, when only one target charging device is present, the transmitting coil transmits the same transmission parameters as the reception parameters for charging the target charging device.
In the embodiment shown in fig. 4, a target device to be charged in a plurality of devices to be charged (corresponding to the device 1, the device 2, and the device 3) is the device 2, after the charging platform receives a receiving parameter with a receiving frequency of 0Hz-100Hz sent by the device 2, the receiving coil sends a transmitting parameter with a frequency of 0Hz-100Hz to the receiving coil of the device 2 within a charging time corresponding to the device 2, and a magnetic line of force sent by the transmitting coil is transmitted to the device 2 for charging.
According to the wireless charging method provided by the embodiment of the application, the charging information and the charging time corresponding to the devices to be charged are respectively obtained by receiving the device identifications and the electric quantity information sent by the devices to be charged, when the feedback information sent by the devices to be charged is received, the transmitting parameters of the transmitting coils are determined according to the parameters of the receiving coils of the devices to be charged, and the devices to be charged are charged in a matched mode according to the transmitting parameters.
In some embodiments, determining the charging information and the charging time from within the target time period comprises: determining the duration of the target equipment to be charged based on the electric quantity information; a target time period is determined based on the duration, and a charging time is determined from the power utilization trough time within the target time period.
In this embodiment, after the electric quantity information of the device to be charged is acquired through the self-checking circuit of the device to be charged, the electric quantity information can be sent to the charging platform, the charging platform calculates the duration of the device to be charged according to the electric quantity information, calculates the electric energy required for maintaining the duration of the device to be charged, and then selects the target time period to supply power to the device to be charged according to the duration of the device to be charged.
It should be noted that, under the condition that it is ensured that the power supply of the device to be charged can maintain its normal endurance, a plurality of charging times may exist in the target time period, the charging platform may send any one of the charging times to the device to be charged, and when the device to be charged confirms to receive the power supply, the charging function is started at the corresponding charging time; the peak shifting period can be selected from the target time period as the charging time and is sent to the equipment to be charged, and the peak shifting period can be the electricity utilization low-peak period or the approximate electricity utilization low-peak period; the target time period may also be determined by the power information and the power consumption rate of the device to be charged.
In this embodiment, it is determined that the duration of the device 1 is 12h, the electric energy required by the device 1 in 12h is calculated according to the electric energy information of the device 1, the target time period is determined to be 0h-3h according to the electric energy information of the device 1, the device to be charged is not supplied with power after 3h is exceeded, the electric energy of the device to be charged is exhausted, and the device 1 can be charged at the electricity consumption valley time of 3 h.
According to the wireless charging method provided by the embodiment of the application, the chargeable time for maintaining normal endurance is calculated according to the electric quantity information of the equipment to be charged received by the charging platform, and the equipment to be charged is charged in the low-peak electricity consumption time period in the chargeable time, so that the loss of electric energy in transmission can be reduced, and the potential safety hazard caused by overhigh temperature of the charging equipment is reduced.
In some embodiments, determining the charging information and the charging time from within the target time period further comprises: determining the duration of the target device to be charged based on the electric quantity information, and determining a target time period based on the duration; under the condition that the equipment to be charged has multiple charging records, obtaining an energy consumption curve of the equipment to be charged according to the charging records; and determining the charging time of the device to be charged in the target time period based on the energy consumption curve.
It should be noted that, when the power consumption peak-to-peak time length in the target time period is less than the charging time, the charging time period of the device to be charged may also occur in the power consumption peak period, thereby bringing about the loss of transmission power, and therefore, the optimal charging time of the device to be charged in the target time period may be determined based on the historical charging data of the device to be charged by using the optimization algorithm; historical charging data of the device to be charged is stored in the charging platform.
In this embodiment, after the duration of the device to be charged is determined and the target time period is obtained, the corresponding energy consumption curve may be drawn according to the historical charging record of the device to be charged, the optimal solution of the device to be charged in the target time period is calculated according to the functional relationship between the load number of the device to be charged and the historical charging time, the optimal solution is used as the charging time of the device to be charged, and after the charging platform sends the charging time to the device to be charged, the device to be charged starts the charging function in the charging time to receive power supply.
According to the wireless charging method provided by the embodiment of the application, the energy consumption curve of the device to be charged is drawn through the charging record of the device to be charged, the association between the charging device and the charging time period is obtained, and the optimal charging time is determined, so that the problems of overcharge and serious heating can be effectively solved on the premise of ensuring the duration of the device to be charged, the loss of a battery can be reduced, and the service life of the battery is prolonged.
In some embodiments, when the target device to be charged includes a plurality of devices, the feedback information includes a receiving parameter of a receiving coil corresponding to each target device to be charged, and the transmitting parameter includes a target interval when a maximum difference value of each receiving parameter does not exceed the second threshold, and each receiving parameter is within the target interval.
In this embodiment, after the device to be charged receives the charging information and the charging time sent by the charging platform and confirms that the charging function is started in the charging time, the device to be charged sends, to the charging platform, a receiving parameter of a receiving coil corresponding to the device to be charged, where the receiving parameter is used to characterize the capability of the corresponding receiving coil to receive electromagnetic information, for example, the receiving parameter may be a receiving frequency of the corresponding receiving coil, and a value of the receiving parameter may be a section of numerical value interval or a specific numerical value.
In this embodiment, the charging platform may receive, at the same time, the receiving parameters sent by the receiving coils corresponding to the multiple target devices to be charged, where the value of each receiving parameter is a segment of value interval, and when the maximum difference value of each receiving parameter does not exceed the second threshold, it indicates that the difference between the value ranges of each receiving parameter is not large, and there may be a value interval with overlapping values, at this time, the value ranges of each receiving parameter are merged to obtain the transmitting parameter of the transmitting coil of the charging platform, where the transmitting parameter is used to represent the capability of the corresponding transmitting coil to transmit electromagnetic information, and the transmitting parameter may also be the occurrence frequency of the transmitting coil.
In this embodiment, when the charging platform receives the receiving parameters with the receiving frequencies of 0Hz to 50Hz and 150Hz to 200Hz sent by the device 1 and the device 2, respectively, the maximum difference value between the two receiving parameters is 200Hz, which is smaller than the preset 500Hz, the transmitting frequency corresponding to the transmitting coil of the charging platform is adjusted to 0Hz to 200Hz, and the device 1 and the device 2 are charged with the transmitting frequency.
According to the wireless charging method provided by the embodiment of the application, the transmitting parameters of the receiving coil are determined through the parameter difference of the receiving coil, and when the difference of the transmitting parameters is small, the magnetic force lines of the transmitting coil can be accurately guided into the receiving range of the coil to be charged, so that accurate charging is realized.
In some embodiments, when the target device to be charged includes a plurality of devices, the feedback information includes a receiving parameter of a receiving coil corresponding to each target device to be charged, and the transmitting parameter includes a receiving parameter corresponding to the receiving coil of each target device to be charged and a corresponding charging time when a maximum difference value of each receiving parameter exceeds a second threshold.
In this embodiment, the charging platform may receive the receiving parameters sent by the receiving coils corresponding to the multiple target devices to be charged simultaneously, the receiving parameters may be a segment of value interval or specific values, the values of the transmitting parameters may be the same as the values of the receiving parameters, or may be a union of the values of the receiving parameters.
It should be noted that, when the value of each receiving parameter is a segment of numerical value interval and the maximum difference value of each receiving parameter exceeds the second threshold, it indicates that the difference of the value ranges of each receiving parameter is large, and if a larger transmitting frequency is used to charge each device to be charged, the receiving coil with a smaller receiving frequency may cause abnormal charging due to the excessively large received electromagnetic information; at the moment, the transmitting parameters which are the same as the receiving parameters are respectively transmitted to the corresponding receiving coils in different time by adopting a cross transmission mode so as to respectively realize cross charging of the target devices to be charged.
In this embodiment, when one target device to be charged starts the charging function, the charging platform sends a closing instruction to the other target devices to be charged to instruct the other target devices to be charged to close the charging function until all the target devices to be charged complete charging.
In this embodiment, when the charging platform receives the receiving parameters with the receiving frequencies of 0Hz to 50Hz and 1000Hz to 1100Hz sent by the device 1 and the device 2, respectively, the maximum difference value of the two receiving parameters is 1100Hz, which is greater than the preset 500Hz, and the charging platform sends an instruction to close the charging function of the device 2 when charging the device 1, and takes the transmitting frequency of 0Hz to 50Hz as the transmitting parameter of the device 1 for charging; when the device 2 is charged, the charging platform sends an instruction to close the charging function of the device 1, and charges with the transmission frequency of 1000Hz-1100Hz as the transmission parameter of the device 2.
According to the wireless charging method provided by the embodiment of the application, the transmitting parameters of the receiving coil are determined through the parameter difference of the receiving coil, and when the difference of the transmitting parameters is large, the magnetic force lines of the transmitting coil can be accurately guided into the receiving range of the coil to be charged, so that accurate charging is realized.
In some embodiments, the transmit parameter and the receive parameter of the receive coil are each at least one of capacitance, inductance, or frequency.
In this embodiment, the transmission parameters are used to characterize the ability of the corresponding transmission coil to transmit electromagnetic information, and the transmission parameters may be the transmission frequency, capacitance, inductance, and the like of the transmission coil; the receiving parameters are used for characterizing the capability of the corresponding receiving coil to receive electromagnetic information, and the receiving parameters can be the transmitting frequency, the capacitance, the inductance and the like of the transmitting coil.
In this embodiment, the receiving parameter may also be one or more of a receiving frequency, a capacitance, and an inductance of the receiving coil, and the corresponding transmitting parameter may be one or more of a transmitting frequency, a capacitance, and an inductance of the transmitting coil.
In this embodiment, when the charging platform receives the receiving parameters with the receiving frequencies of 0Hz to 50Hz and 150Hz to 200Hz sent by the device 1 and the device 2, respectively, the transmitting frequency corresponding to the transmitting coil of the charging platform may be adjusted to 0Hz to 200Hz, and the device 1 and the device 2 are charged with the transmitting frequency.
The wireless charging device provided by the embodiment of the invention is described with reference to fig. 5, and a wireless charging device described below and a wireless charging method described above may be referred to correspondingly.
The invention provides a wireless charging device, which is applied to a charging platform, wherein the charging platform is in communication connection with a plurality of devices to be charged, the charging platform comprises a transmitting coil, the devices to be charged comprise a receiving coil, and the device comprises:
a receiving module 510, configured to receive device information sent by multiple devices to be charged, where the device information includes a device identifier and electric quantity information;
the first processing module 520 is configured to determine charging information and charging time of a target device to be charged from a target time period when the power information of the target device to be charged in the plurality of devices to be charged is lower than a first threshold;
a sending module 530, configured to send, based on the device identifier of the target device to be charged, the charging information and the charging time to the target device to be charged, where the charging time is used to instruct the target device to be charged to start a charging function in the charging time;
and the second processing module 540 is configured to receive feedback information of the target device to be charged, and determine a transmission parameter of the transmitting coil based on the feedback information, where the transmission parameter is matched with the receiving coil.
According to the wireless charging device provided by the embodiment of the application, the charging information and the charging time corresponding to the devices to be charged are respectively obtained by receiving the device identifications and the electric quantity information sent by the devices to be charged, when the feedback information sent by the devices to be charged is received, the transmitting parameters of the transmitting coils are determined according to the parameters of the receiving coils of the devices to be charged, and the devices to be charged are charged in a matched mode according to the transmitting parameters.
Fig. 6 illustrates a physical structure diagram of an electronic device, which may include, as shown in fig. 6: a processor (processor)610, a communication Interface (Communications Interface)620, a memory (memory)630 and a communication bus 640, wherein the processor 610, the communication Interface 620 and the memory 630 communicate with each other via the communication bus 640. The processor 610 may invoke logic instructions in the memory 630 to perform a wireless charging method comprising: receiving equipment information sent by a plurality of devices to be charged, wherein the equipment information comprises equipment identification and electric quantity information; under the condition that the electric quantity information of a target device to be charged in the plurality of devices to be charged is lower than a first threshold value, determining the charging information and the charging time of the target device to be charged from a target time period; sending charging information and charging time to the target device to be charged based on the device identifier of the target device to be charged, wherein the charging time is used for indicating the target device to be charged to start a charging function in the charging time; and receiving feedback information sent by the target device to be charged, and determining the transmitting parameters of the transmitting coil based on the feedback information, wherein the transmitting parameters are matched with the receiving coil.
In addition, the logic instructions in the memory 630 may be implemented in software functional units and stored in a computer readable storage medium when the logic instructions are sold or used as independent products. Based on such understanding, the technical solution of the present invention or a part thereof which contributes to the prior art in essence can be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
The present invention also provides a computer program product comprising a computer program, the computer program being storable on a non-transitory computer readable storage medium, the computer program, when executed by a processor, being capable of executing a wireless charging method provided by the above methods, the method comprising: receiving equipment information sent by a plurality of devices to be charged, wherein the equipment information comprises equipment identification and electric quantity information; under the condition that the electric quantity information of a target device to be charged in the plurality of devices to be charged is lower than a first threshold value, determining the charging information and the charging time of the target device to be charged from a target time period; sending charging information and charging time to the target device to be charged based on the device identifier of the target device to be charged, wherein the charging time is used for indicating the target device to be charged to start a charging function in the charging time; and receiving feedback information sent by the target device to be charged, and determining the transmitting parameters of the transmitting coil based on the feedback information, wherein the transmitting parameters are matched with the receiving coil.
The present invention also provides a non-transitory computer readable storage medium having stored thereon a computer program which, when executed by a processor, is implemented to perform a wireless charging method provided by the above methods, the method comprising: receiving equipment information sent by a plurality of devices to be charged, wherein the equipment information comprises equipment identification and electric quantity information; under the condition that the electric quantity information of a target device to be charged in the plurality of devices to be charged is lower than a first threshold value, determining the charging information and the charging time of the target device to be charged from a target time period; sending charging information and charging time to the target device to be charged based on the device identifier of the target device to be charged, wherein the charging time is used for indicating the target device to be charged to start a charging function in the charging time; and receiving feedback information sent by the target device to be charged, and determining the transmitting parameters of the transmitting coil based on the feedback information, wherein the transmitting parameters are matched with the receiving coil.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in the embodiments or some parts of the embodiments.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims (10)

1. A wireless charging method is applied to a charging platform, the charging platform is in communication connection with a plurality of devices to be charged, the charging platform comprises a transmitting coil, the devices to be charged comprise a receiving coil, and the wireless charging method is characterized by comprising the following steps:
receiving equipment information sent by a plurality of equipment to be charged, wherein the equipment information comprises equipment identification and electric quantity information;
under the condition that the electric quantity information of a target device to be charged in the plurality of devices to be charged is lower than a first threshold value, determining the charging information and the charging time of the target device to be charged from a target time period;
sending the charging information and the charging time to the target device to be charged based on the device identifier of the target device to be charged, wherein the charging time is used for indicating the target device to be charged to start a charging function in the charging time;
and receiving feedback information sent by the target device to be charged, and determining the transmitting parameters of the transmitting coil based on the feedback information, wherein the transmitting parameters are matched with the receiving coil.
2. The wireless charging method of claim 1, wherein determining charging information and charging time from within a target time period comprises:
determining the duration of the target device to be charged based on the electric quantity information;
the target time period is determined based on the endurance time period, and the charging time is determined from the electricity utilization valley period within the target time period.
3. The wireless charging method of claim 1, wherein determining charging information and charging time from within a target time period further comprises:
determining the duration of the target device to be charged based on the electric quantity information, and determining the target time period based on the duration;
under the condition that the equipment to be charged has a plurality of charging records, obtaining an energy consumption curve of the equipment to be charged according to the charging records;
determining the charging time of the device to be charged in the target time period based on the energy consumption curve.
4. The wireless charging method according to claim 1, wherein the target devices to be charged include a plurality of devices, the feedback information includes a receiving parameter of a receiving coil corresponding to each of the target devices to be charged, and the transmitting parameter includes a target interval in a case that a maximum difference value of each of the receiving parameters does not exceed a second threshold, and each of the receiving parameters is within the target interval.
5. The wireless charging method according to claim 1, wherein the target devices to be charged include a plurality of devices, the feedback information includes a receiving parameter of a receiving coil corresponding to each of the target devices to be charged, and the transmitting parameter includes a receiving parameter and a charging time corresponding to the receiving coil of each of the target devices to be charged, when a maximum difference value of each of the receiving parameters exceeds a second threshold.
6. The wireless charging method of claim 1, wherein the transmit parameter and the receive parameter of the receive coil are each at least one of capacitance, inductance, or frequency.
7. The utility model provides a wireless charging device, is applied to charging platform, charging platform and a plurality of equipment communication connection that wait to charge, charging platform includes transmitting coil, the equipment that waits to charge includes receiving coil, its characterized in that, the device includes:
the device comprises a receiving module, a charging module and a charging module, wherein the receiving module is used for receiving device information sent by a plurality of devices to be charged, and the device information comprises device identification and electric quantity information;
the first processing module is used for determining the charging information and the charging time of the target device to be charged in a target time period under the condition that the electric quantity information of the target device to be charged in the plurality of devices to be charged is lower than a first threshold value;
a sending module, configured to send the charging information and the charging time to the target device to be charged based on a device identifier of the target device to be charged, where the charging time is used to indicate that the target device to be charged starts a charging function in the charging time;
and the second processing module is used for receiving feedback information sent by the target device to be charged and determining the transmitting parameters of the transmitting coil based on the feedback information, wherein the transmitting parameters are matched with the receiving coil.
8. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor implements the wireless charging method according to any one of claims 1 to 6 when executing the program.
9. A non-transitory computer-readable storage medium on which a computer program is stored, the computer program, when executed by a processor, implementing the wireless charging method according to any one of claims 1 to 6.
10. A computer program product comprising a computer program, wherein the computer program when executed by a processor implements the wireless charging method of any one of claims 1 to 6.
CN202210520838.8A 2022-05-12 2022-05-12 Wireless charging method and device Pending CN114844156A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115459410A (en) * 2022-10-28 2022-12-09 珠海智融科技股份有限公司 Charging equipment identification method and device, electronic equipment and storage medium

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115459410A (en) * 2022-10-28 2022-12-09 珠海智融科技股份有限公司 Charging equipment identification method and device, electronic equipment and storage medium
CN115459410B (en) * 2022-10-28 2023-03-24 珠海智融科技股份有限公司 Charging equipment identification method and device, electronic equipment and storage medium

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