CN107979138A - A kind of control method and device of wireless charging - Google Patents
A kind of control method and device of wireless charging Download PDFInfo
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- CN107979138A CN107979138A CN201711381911.3A CN201711381911A CN107979138A CN 107979138 A CN107979138 A CN 107979138A CN 201711381911 A CN201711381911 A CN 201711381911A CN 107979138 A CN107979138 A CN 107979138A
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Abstract
The present invention provides a kind of control method and device of wireless charging, wherein method includes：Obtain the bearing power request that the receiving terminal of wireless charging is sent；Asked according to the bearing power, to the receiving terminal output current, if the corresponding output voltage of current output current is less than the voltage threshold set, the current output current is determined as with reference to electric current；Target current is exported to the receiving terminal, wherein described target current is less than the reference electric current, avoids when the request excursion of receiving terminal, transmitting terminal exceeds the limit that can be supplied, avoid causing abnormal electrical power supply, it is ensured that therefore transmitting terminal or receiving terminal do not cause device damage.
Description
Technical field
The present invention relates to field of communication technology, more particularly to a kind of control method and device of wireless charging.
Background technology
The wireless charging technology of market mainstream is current based on induction Qi standard radio charging techniques, Qi standards
The communication modes of specification wireless energy transmission end toward wireless energy receiving terminal are FSK, and wireless energy receiving terminal is sent out toward wireless energy
The communication modes for penetrating end are ASK.
When the changed power of receiving terminal load requests, receiving terminal sends line of the information by ASK modulation by receiving terminal
Circle is launched, and transmitting terminal receives the information of the transmission of demodulation receiving terminal, then after transmitting terminal inter-process changed power, passes through
FSK communications are gone out by transmitting terminal coil transmissions, and receiving terminal demodulates and receives the change of adjustment power.This whole wireless charging system
The feedback response time unite generally in the other scope of hundreds of Milliseconds, wireless charging is with respect to wired charging method, this feedback response
Time is slower.
Under specific circumstances, when the bearing power short time cataclysm of receiving terminal request, during beyond the response time of transmitting terminal,
Transmitting terminal can not meet receiving terminal load requests in time, and the rectification inside receiving terminal to load can be caused to export, and supply falls short of demand, most
The load meeting work of terminating receiving end is limited or even is operated in abnormal state, causes the influence of poor user experience.
For example, when receiving terminal load is just put into wireless charging transmitting terminal, power demand abruptly increase can be caused in the short time, connect
Receiving end circuit is detected according to wired charging method power, and speed is in a few tens of milliseconds rank, in the wireless charging feedback response time
Hundreds of milliseconds within gone to absorb electric current by setting electric current, and the adapter of transmitting terminal is as so high-power in do not supported at this time
The output of electric current, transmitting terminal circuit have little time adjustment feedback, and wireless charging system, which is at constantly filling, stops repeat mode, fills
Electricity Functional failure.
The content of the invention
The embodiment of the present invention provides a kind of control method and device of wireless charging, during solving existing wireless charging
During the bearing power short time cataclysm of receiving terminal request, transmitting terminal can not meet receiving terminal load requests in time, charging work(occur
The problem of energy failure.
In order to solve the above-mentioned technical problem, the present invention is realized in：
In a first aspect, an embodiment of the present invention provides a kind of control method of wireless charging, including：
Obtain the bearing power request that the receiving terminal of wireless charging is sent；
Asked according to the bearing power, when the corresponding magnitude of voltage of newest output current exported to receiving terminal is less than setting
Voltage threshold when, the newest output current is determined as with reference to electric current；
Target current is exported to the receiving terminal, wherein the target current is less than the reference electric current.
Second aspect, the embodiment of the present invention additionally provide a kind of control device of wireless charging, including：
Acquisition module, the bearing power request that the receiving terminal for obtaining wireless charging is sent；
Determining module, for being asked according to the bearing power, when the newest output current exported to receiving terminal is corresponding
When magnitude of voltage is less than the voltage threshold set, the newest output current is determined as with reference to electric current；
Output module, for exporting target current to the receiving terminal, wherein the target current is less than the reference electricity
Stream.
The third aspect, the embodiment of the present invention additionally provide a kind of mobile terminal, including processor, memory and are stored in institute
The computer program that can be run on memory and on the processor is stated, when the computer program is performed by the processor
The step of realizing the control method of wireless charging as described above.
Fourth aspect, the embodiment of the present invention additionally provide a kind of computer-readable recording medium, described computer-readable to deposit
Computer program is stored on storage media, the computer program realizes the control of wireless charging as described above when being executed by processor
The step of method processed.
In embodiments of the present invention, the bearing power sent by obtaining the receiving terminal of wireless charging is asked, negative according to this
Power request is carried, to receiving terminal output current, if the corresponding output voltage of current output current is less than the voltage threshold set,
Current output current is determined as to be less than the reference electric current with reference to electric current, output target current to receiving terminal, wherein target current,
The process realizes the output power of control output end in the range of a maximum can be supplied to, and newest output current is determined as with reference to electricity
Stream, in subsequent current output procedure, to reduce output current, avoids to cater to or meeting the needs of receiving terminal, and constantly super
Load carries out power output, by the judgement to the corresponding magnitude of voltage of the output current, to determine the current newest output electricity
Whether stream is excessive, avoids when the request excursion of receiving terminal, and transmitting terminal exceeds the limit that can be supplied, and avoids making
Into abnormal electrical power supply, it is ensured that therefore transmitting terminal or receiving terminal do not cause device damage.
Brief description of the drawings
Fig. 1 shows the flow chart one of the control method of wireless charging in the embodiment of the present invention；
Fig. 2 represents the flowchart 2 of the control method of wireless charging in the embodiment of the present invention；
Fig. 3 represents the structure diagram of transmitting terminal and receiving terminal in the embodiment of the present invention；
Fig. 4 represents the illustraton of model of step-by-step method power detection flow in the embodiment of the present invention；
Fig. 5 represents the structure diagram one of the control device of wireless charging in the embodiment of the present invention；
Fig. 6 represents the structure diagram two of the control device of wireless charging in the embodiment of the present invention；
Fig. 7 represents to realize a kind of hardware architecture diagram of mobile terminal of each embodiment of the present invention.
Embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is part of the embodiment of the present invention, instead of all the embodiments.Based on this hair
Embodiment in bright, the every other implementation that those of ordinary skill in the art are obtained without creative efforts
Example, belongs to the scope of protection of the invention.
A kind of control method of wireless charging disclosed in the embodiment of the present invention, with reference to shown in Fig. 1, including：
Step 101：Obtain the bearing power request that the receiving terminal of wireless charging is sent.
The control method of the wireless charging is specially carried out in the transmitting terminal of wireless charging, the transmitting terminal example of the wireless charging
Such as it is wireless charging pedestal, the receiving terminal of the wireless charging is, for example, the mobile terminals such as mobile phone.
During wireless charging, mobile terminal can be positioned on the platform of wireless charging pedestal, or be disposed on
Position near wireless charging pedestal, realizes wireless charging process closely, when receiving terminal and the transmitting terminal of wireless charging lean on
Load near and receiving terminal sends bearing power request, transmitting terminal obtains the load work(there are during charge requirement to transmitting terminal
Rate is asked, and carries out ensuing charging control process.
Step 102：Asked according to the bearing power, to receiving terminal output current, if the corresponding output of current output current
When voltage is less than the voltage threshold set, current output current is determined as with reference to electric current.
When getting the bearing power request that receiving terminal is sent, it is necessary to be exported to receiving terminal with asking corresponding to power
Phase induced current, to realize the wireless power to receiving terminal.Wherein, the corresponding request power of bearing power request is a target work(
Rate value, when carrying out electric current output according to the target power value, it is necessary to judge current newest output current, judgement
Purpose be the output power of control output end at any time in the range of a maximum can be supplied to, be specially previously provided with a voltage threshold
Value, by carrying out size judgement with respect to the voltage threshold to the corresponding magnitude of voltage of newest output current, sets when the magnitude of voltage is less than
During constant voltage threshold value, illustrate that the power that receiving terminal is drawn to output terminal is excessive, the corresponding output power of the newest output current will
Beyond maximum deliverability, it may result in hiccup and do not charge, the newest current output current is determined as reference at this time
Electric current, in subsequent current output procedure, to reduce output current, avoid to cater to or meeting the needs of receiving terminal, and it is continuous
Excess load carries out power output, by the judgement to the corresponding magnitude of voltage of the output current, to determine the current newest output
Whether electric current is excessive, avoids when the request excursion of receiving terminal, and transmitting terminal exceeds the limit that can be supplied, and avoids
Cause abnormal electrical power supply, it is ensured that therefore transmitting terminal or receiving terminal do not cause device damage.
Step 103：Output target current to receiving terminal, wherein target current is less than the reference electric current.
In voltage threshold of the corresponding magnitude of voltage of newest output current less than setting, you can determine that newest output current is true
It is set to reference to electric current, will be exported in next electric current output procedure after this less than this with reference to a target current of electric current to connecing
Receiving end, even if when should there is the request excursion of receiving terminal less than the target current guarantee with reference to electric current, will not
Because the mistake high power requirements in the short time cause charge function failure.
The control method of wireless charging disclosed in the embodiment of the present invention, obtains the load that the receiving terminal of wireless charging is sent
Power request, is asked according to the bearing power, to receiving terminal output current, if the current corresponding output voltage of output current is less than
During the voltage threshold of setting, current output current is determined as with reference to electric current, output target current to receiving terminal, wherein target electricity
Stream is less than the reference electric current, which realizes that the output power of control output end, will be newest defeated in the range of a maximum can be supplied to
Go out electric current to be determined as with reference to electric current, in subsequent current output procedure, to reduce output current, avoid receiving to cater to or meeting
The demand at end, and constantly excess load carries out power output, by the judgement to the corresponding magnitude of voltage of the output current, to determine this
Whether current newest output current is excessive, avoids when the request excursion of receiving terminal, transmitting terminal exceeds institute's energy
The limit of supply, avoids causing abnormal electrical power supply, it is ensured that therefore transmitting terminal or receiving terminal do not cause device damage.
As a preferred embodiment, wherein, it is described to be asked according to the bearing power, export electricity to the receiving terminal
Stream, if the corresponding output voltage of current output current is less than the voltage threshold set, the current output current is determined as
With reference to the step of electric current, with reference to shown in Fig. 2, including：
Step 201：Asked according to the bearing power, by step-by-step system to receiving terminal output current.
In the bearing power request that the receiving terminal for getting wireless charging is sent, asked according to the bearing power to reception
The mode for holding output current can be that stepping exports, during the stepping, mesh of the transmitting terminal according to needed for bearing power request
Power is marked, the electric current exported to receiving terminal is incrementally increased with stepping process, is progressively leaned on to the corresponding target current of the target power
Closely, the process that an electric current steps up is formed, to further ensure that the electric current in the case of the request power cataclysm of receiving terminal
The stability of output.
Step 202：During by step-by-step system to receiving terminal output current, if current output current is corresponding defeated
When going out voltage less than the voltage threshold set, current output current is determined as with reference to electric current.
When in the stepping output procedure in electric current, if the corresponding magnitude of voltage of newest output current less than setting voltage threshold,
It can then determine that bearing power request corresponding during the stepping is excessive, during being stepped up of electric current, if newest
The corresponding magnitude of voltage of output current then judges that the output of electric current is capable of providing beyond transmitting terminal less than setting voltage threshold
To greatest extent, it is impossible to which the target current in being asked towards bearing power rises again, is at this time determined as the newest output current
With reference to electric current, so that next output current is less than the current value, by way of stepping, the maximum to transmitting terminal is better achieved
Output power determines, to prevent the situation that transmitting terminal hiccup is not charged, lifts user experience.
Further, specifically, the step of step-by-step system is to receiving terminal output current should be passed through, including：The initial electricity of output
It flow to the receiving terminal；According to the current marching technique value of setting, each stepping time interval T after initial current output is arrived
Up to when, corresponding current Iin is to the receiving terminal for output；Wherein, Iin=Iin_min+N*Iin_step.
Iin is the corresponding current, and Iin_min is initial current, and Iin_step is current marching technique value, and N is the stepping
The number of time interval T；Wherein, the stepping time interval T=T2-T1, T1 send the bearing power request for receiving terminal
At the time of, T2 sends for receiving terminal at the time of receive output current first after bearing power request.
The current value that corresponding current Iin reaches for each stepping time interval T arrival when institute's steppings, it is defeated according to the stepping
Go out process, be stepped up output current value, be better achieved and the peak power output of transmitting terminal is determined.
Specifically, the control method of the wireless charging in the embodiment of the present invention is mainly used in transmitting terminal, specifically, the hair
Penetrating end includes：Adapter and transmitting terminal circuit module, corresponding receiving terminal include：Receiving terminal circuit module, rectification output mould
Block, load blocks (including system module and battery module), circuit system block diagram is as shown in Figure 3.
When wireless receiving end is put into the wireless transmitting terminals for connecting adapter, receiving terminal is walked according to time and request electric current
Into mode, detect the actual power of adapter, to prevent adapter hiccup not charge condition, lift user experience.
Specifically, this is specifically described based on step-by-step method power detection flow with reference to Fig. 4.Specific implementation step is：
Set at the time of receiving terminal circuit sends power request as T1, transmitting terminal is sent information to by ASK modes, launch
Demodulated information, processing and adjustment power is held to feed back to receiving terminal circuit by coil, after receiving terminal receives during power adjustment
Carve as T2；This asks to be set as T, T=T2-T1 to the feedback response time.
Power request of the transmitting terminal according to receiving terminal, receiving terminal is outputed current to according to step-by-step system, from minimum electric current
Start to export, as shown in figure 4, the first output current is Iin_min, such as 100mA；Increased step is gone according to stepping time interval T
It is Iin_step into electric current.
Accordingly, transmitting terminal detection voltage of VBUS value Vin, sets voltage threshold as Vth, during the stepping of electric current,
If transmitting terminal detects that Vin values corresponding with electric current are dropped under Vth, under the peak power output for detecting transmitting terminal
Current value, control transmitting terminal stop charging within the t_stop periods, and then output current Iin return back to one grade, that is, return back to
On electric current gear in Fig. 4 residing for Iin_set, Vin values are allowed by way of stepping, to be realized on Vth to transmitting terminal most
The detection of big output power, obtains the maximum power limit that transmitting terminal is capable of providing, and adjusts the size of output current in time, keeps away
Exempt from the abnormal electrical power supply that the excess load supply belt of transmitting terminal is come, it is ensured that therefore transmitting terminal or receiving terminal do not cause device damage.
Wherein, the stepping time T that the corresponding target current of power request of receiving terminal is stepped to from minimum output current is got over
Greatly, then the electric current Iin_step of stepping is smaller, then total power detection time Ttotal is with regard to relatively long, the electric current essence of power detection
Degree is higher；On the contrary, such as T is smaller, Iin_step is bigger, then Ttoal is smaller, and power detection current precision is lower；Both need flat
Weighing apparatus, can repeatedly debug, take optimal value.
Accordingly, the step of output target current to receiving terminal, including：Determine to pass through step-by-step system to receiving terminal
During output current, the current value of a upper output current for the current output current is target current value；According to described
Target current value, output target current to the receiving terminal.
When voltage threshold of the corresponding magnitude of voltage of newest output current exported to receiving terminal less than setting, it is necessary to incite somebody to action
After newest output current is determined as reference electric current, output target current to receiving terminal, in the stepping output procedure of electric current, the mesh
Determining for electric current is marked, can be that a upper output current for newest output current is determined as the target current, an output electricity on this
The current value of stream is sufficiently large, and is less than the newest output current, it is ensured that is carried out most in the range of the peak power output of transmitting terminal
High-current output.
Accordingly, it is described to be asked according to the bearing power, when the corresponding electricity of newest output current exported to receiving terminal
When pressure value is less than the voltage threshold set, the newest output current is determined as with reference to after electric current, the output target is electric
It flow to before the receiving terminal, further includes：Stopping outputs current to the receiving terminal.
When voltage threshold of the corresponding magnitude of voltage of newest output current exported to receiving terminal less than setting, by newest output
After electric current is determined as reference electric current, and also electricity is not exported, it is necessary to first suspend to receiving terminal before to receiving terminal output target current
Stream, to ensure the follow-up normal operation of transmitting terminal device.
Further, it is preferable to ground, this method further includes：Ask according to the bearing power, exported to the receiving terminal
During electric current, if detecting next bearing power request that receiving terminal is sent, or sent away from the receiving terminal is got
Bearing power request time reach setting interval time when, return perform it is described obtain wireless charging receiving terminal send
Bearing power request the step of.
The time interval be from it is foregoing acquisition wireless charging receiving terminal send bearing power request at the time of one
A time span, being provided to ensure that for the time interval carries out the power demand in receiving terminal accurately to obtain in real time, with suitable
Answer the power demand of continually changing receiving terminal load.
After the interval time T_out that load blocks have changed power or setting in receiving terminal reaches, docking is re-executed
The acquisition of the bearing power request of receiving end, and circulate and perform ensuing electric current output procedure, realize to optimal transmitting terminal system
The real-time matching of system power, realizes the optimal control of wireless charging.
Specifically, wherein, the power of system module request in receiving terminal is set as Psys, rectification output module provides power
For Prec, battery module absorbs or the power of supply is Pbat, when transmitting terminal carries out wireless charging to receiving terminal output current,
There are following two situations for power distribution in receiving terminal：When the current value that transmitting terminal is exported to receiving terminal is sufficiently large, Neng Gouman
During the power demand of the load of sufficient receiving terminal overall (including system module and battery module), battery module and system module are at the same time
The power of input is absorbed, at this time Prec=Psys+Pbat；If transmitting terminal is to the current value that receiving terminal exports, it is impossible to meet reception
During the power demand of the load at end overall (including system module and battery module), battery module requires supplementation with power to system mould
Block, Prec=Psys-Pbat at this time, meets the charge requirement of the receiving terminal during transmitting terminal adjusts output current.
The process is specially：It is real with above-mentioned step-by-step system after receiving terminal is put into the transmitting terminal for connecting adapter
When detect adapter power Pin, Pin by transmitting terminal circuit and it is coil-induced to receiving terminal circuit, output power after rectification
For Prec；Pin and Prec is set to Prec=η Pin, η is transfer efficiency percentage there are efficiency transfer problem；Initialization system mould
The power of block request is Psys, and it is Prec that rectification output module, which provides power, and battery module absorbs or the power P bat of supply, nothing
There are following two situations for the distribution of receiving terminal power when micro USB is electric：
(1) as Psys >=Prec, rectification output power is not enough to the operation of system module in supply receiving terminal, battery module
Supplemental capacity is wanted to system module, at this time Psys=Prec-Pbat；
(2) as Psys ＜ Prec, rectification output power is sufficient, and battery module and system module absorb the work(of input at the same time
Rate, at this time Psys=Prec+Pbat.
Whether can subsequently there is removal to charge with real-time judge, if any complete charge；Charge and terminate if to remove charging,
If not removing charging, judge that load requests change, when load requests power is more than former request power, it is necessary to re-execute
Stepping hair carries out power detection, the underpower for preventing adapter from providing；When load requests power is less than former request power, explanation
Load power demand is small, to prevent the excessive power of transmitting terminal from producing fever by coil consumption, also needs to re-execute stepping work(
Rate detects, and re-starts power distribution；It can set and be changed with the power request of interval T-out polls load, periodically be performed
Step-by-step method power detection is implemented.
In above-described embodiment, by the detection to sending the corresponding voltage of electric current, intelligent power detection and adjusting are realized,
When using the adapter of weak load charger or various different lower-wattages in transmitting terminal, wireless charging system can detect this
The real output of adapter in transmitting terminal, prevents the load excess of receiving terminal from drawing power to cause adapter hiccup not charged,
So as to ensure the stability of wireless charging, the compatibility for lifting wireless charging adapter, lifting user experience.
A kind of control device of wireless charging, specifically, the control device of the wireless charging is also disclosed in the embodiment of the present invention
Transmitting terminal i.e. in aforementioned embodiments, the control device of wireless charging provided in an embodiment of the present invention can be realized above-mentioned wireless
Each process of the embodiment of the control method of charging, and identical technique effect can be reached, it is no longer superfluous here to avoid repeating
State.With reference to shown in Fig. 5, Fig. 6, including：Acquisition module 401, determining module 402 and output module 403.
Acquisition module 401, the bearing power request that the receiving terminal for obtaining wireless charging is sent.
Determining module 402, for being asked according to the bearing power, to the receiving terminal output current, if current output
When the corresponding output voltage of electric current is less than the voltage threshold set, the current output current is determined as with reference to electric current.
Output module 403, for exporting target current to the receiving terminal, wherein the target current is less than the reference
Electric current.
The determining module 402 includes：First output sub-module 4021 and the first determination sub-module 4022.
First output sub-module 4021, for being asked according to the bearing power, is exported by step-by-step system to receiving terminal
Electric current.
First determination sub-module 4022, for by step-by-step system to receiving terminal output current during, if currently
When the corresponding output voltage of output current is less than the voltage threshold set, the current output current is determined as with reference to electric current.
First output sub-module 4021 is specifically used for：Initial current is exported to the receiving terminal；According to the electric current of setting
Step value, when each stepping time interval T after initial current output is reached, output corresponding current Iin connects to described
Receiving end；Wherein, Iin=Iin_min+N*Iin_step, Iin are the corresponding current, and Iin_min is initial current, Iin_
Step is current marching technique value, and N is the number of the stepping time interval T；Wherein, the stepping time interval T=T2-T1, T1
At the time of sending the bearing power request for receiving terminal, T2 is received first after sending the bearing power request for receiving terminal
At the time of output current.
Wherein, output module 403 includes：Second determination sub-module 4031 and the second output sub-module 4032.
Second determination sub-module 4031, it is described for determining by step-by-step system to during receiving terminal output current
The current value of a upper output current for current output current is target current value.
Second output sub-module 4032, for according to the target current value, output target current to the receiving terminal.
Wherein, which further includes：Return to execution module 404.
Execution module 404 is returned to, for being asked according to the bearing power, to the process of the receiving terminal output current
In, if detect next bearing power request that receiving terminal is sent, or away from the bearing power for getting the receiving terminal transmission
When the time of request reaches the interval time of setting, return and perform the bearing power that the receiving terminal for obtaining wireless charging is sent
The step of request.Preferably, the receiving terminal includes load blocks, and for the output of the control device of wireless charging is electric
The rectification output module of the load blocks is streamed to, wherein, the maximum limitation electric current of the rectification output module is more than institute
State the maximum input current of load blocks.
The maximum limitation electric current of the rectification output module of receiving terminal be Irec_max, and maximum input current is in load blocks
Iin_max, is designed as Iin_max≤Irec_max, thus will not be because of the excessive wireless charging system of load blocks application electric current
Because supply falls short of demand causes not filling electricity, it is ensured that the performance optimization of wireless charging process.
The control device of wireless charging provided in an embodiment of the present invention can realize wireless charging in above-mentioned embodiment of the method
Each process of the control method of electricity, to avoid repeating, which is not described herein again.
The control device of wireless charging disclosed in the embodiment of the present invention, what the receiving terminal by obtaining wireless charging was sent
Bearing power is asked, and is asked according to the bearing power, to receiving terminal output current, if the corresponding output voltage of current output current
Less than setting voltage threshold when, current output current is determined as with reference to electric current, output target current to receiving terminal, wherein mesh
Mark electric current is less than the reference electric current, which realizes that the output power of control output end, will most in the range of a maximum can be supplied to
New output current is determined as with reference to electric current, in subsequent current output procedure, to reduce output current, avoid to cater to or meeting
The demand of receiving terminal, and constantly excess load carries out power output, by the judgement to the corresponding magnitude of voltage of the output current, comes true
Whether the fixed current newest output current is excessive, avoids when the request excursion of receiving terminal, transmitting terminal exceeds
The limit that can be supplied, avoids causing abnormal electrical power supply, it is ensured that therefore transmitting terminal or receiving terminal do not cause device damage.
Fig. 7 is a kind of hardware architecture diagram for the mobile terminal for realizing each embodiment of the present invention.
The mobile terminal 900 includes but not limited to：It is radio frequency unit 901, mixed-media network modules mixed-media 902, audio output unit 903, defeated
Enter unit 904, sensor 905, display unit 906, user input unit 907, interface unit 908, memory 909, processor
The component such as 910 and power supply 911.It will be understood by those skilled in the art that the mobile terminal structure shown in Fig. 7 is not formed
Restriction to mobile terminal, mobile terminal can be included than illustrating more or fewer components, either combine some components or
Different component arrangements.In embodiments of the present invention, mobile terminal include but not limited to mobile phone, tablet computer, laptop,
Palm PC, car-mounted terminal, wearable device and pedometer etc..The mobile terminal can realize that the method for Fig. 1 to Fig. 4 is real
Each process of the control method of wireless charging in example is applied, to avoid repeating, which is not described herein again.
Wherein, processor 910, the bearing power request that the receiving terminal for obtaining wireless charging is sent；
And asked according to the bearing power, when the corresponding magnitude of voltage of newest output current exported to receiving terminal is less than
During the voltage threshold of setting, the newest output current is determined as with reference to electric current；Target current is exported to the receiving terminal, its
Described in target current be less than it is described with reference to electric current.
The mobile terminal, the bearing power that the receiving terminal by obtaining wireless charging is sent is asked, according to the bearing power
Request, it is when voltage threshold of the corresponding magnitude of voltage of newest output current exported to receiving terminal less than setting, this is newest defeated
Go out electric current to be determined as with reference to electric current, output target current to receiving terminal, wherein target current are less than the reference electric current, and the process is real
Newest output current is determined as with reference to electric current by the output power of existing control output end in the range of a maximum can be supplied to, with
Once in electric current output procedure, output current is reduced, is avoided to cater to or meeting the needs of receiving terminal, and constantly excess load carries out
Power output, by the judgement to the corresponding magnitude of voltage of the output current, come determine the current newest output current whether mistake
Height, avoids when the request excursion of receiving terminal, and transmitting terminal exceeds the limit that can be supplied, and avoids causing to power different
Often, it is ensured that therefore transmitting terminal or receiving terminal do not cause device damage.
It should be understood that in the embodiment of the present invention, radio frequency unit 901 can be used for receiving and sending messages or communication process in, signal
Reception and transmission, specifically, by from base station downlink data receive after, handled to processor 910；In addition, by uplink
Data sending is to base station.In general, radio frequency unit 901 includes but not limited to antenna, at least one amplifier, transceiver, coupling
Device, low-noise amplifier, duplexer etc..In addition, radio frequency unit 901 can also by wireless communication system and network and other set
Standby communication.
Mobile terminal has provided wireless broadband internet to the user by mixed-media network modules mixed-media 902 and has accessed, and such as helps user to receive
Send e-mails, browse webpage and access streaming video etc..
Audio output unit 903 can be receiving by radio frequency unit 901 or mixed-media network modules mixed-media 902 or in memory 909
It is sound that the voice data of storage, which is converted into audio signal and exports,.Moreover, audio output unit 903 can also be provided and moved
The relevant audio output of specific function that dynamic terminal 900 performs is (for example, call signal receives sound, message sink sound etc.
Deng).Audio output unit 903 includes loudspeaker, buzzer and receiver etc..
Input unit 904 is used to receive audio or video signal.Input unit 904 can include graphics processor
(Graphics Processing Unit, GPU) 9041 and microphone 9042, graphics processor 9041 is in video acquisition mode
Or the static images or the view data of video obtained in image capture mode by image capture apparatus (such as camera) carry out
Reason.Picture frame after processing may be displayed on display unit 906.Picture frame after the processing of graphics processor 9041 can be deposited
Storage is transmitted in memory 909 (or other storage mediums) or via radio frequency unit 901 or mixed-media network modules mixed-media 902.Mike
Wind 9042 can receive sound, and can be voice data by such acoustic processing.Voice data after processing can be
The form output of mobile communication base station can be sent to via radio frequency unit 901 by being converted in the case of telephone calling model.
Mobile terminal 900 further includes at least one sensor 905, such as optical sensor, motion sensor and other biographies
Sensor.Specifically, optical sensor includes ambient light sensor and proximity sensor, wherein, ambient light sensor can be according to environment
The light and shade of light adjusts the brightness of display panel 9061, and proximity sensor can close when mobile terminal 900 is moved in one's ear
Display panel 9061 and/or backlight.As one kind of motion sensor, accelerometer sensor can detect in all directions (general
For three axis) size of acceleration, size and the direction of gravity are can detect that when static, available for identification mobile terminal posture (ratio
Such as horizontal/vertical screen switching, dependent game, magnetometer pose calibrating), Vibration identification correlation function (such as pedometer, tap)；Pass
Sensor 905 can also include fingerprint sensor, pressure sensor, iris sensor, molecule sensor, gyroscope, barometer, wet
Meter, thermometer, infrared ray sensor etc. are spent, details are not described herein.
Display unit 906 is used for the information for showing by information input by user or being supplied to user.Display unit 906 can wrap
Display panel 9061 is included, liquid crystal display (Liquid Crystal Display, LCD), Organic Light Emitting Diode can be used
Forms such as (Organic Light-Emitting Diode, OLED) configures display panel 9061.
User input unit 907 can be used for the numeral or character information for receiving input, and produce the use with mobile terminal
The key signals input that family is set and function control is related.Specifically, user input unit 907 include contact panel 9071 and
Other input equipments 9072.Contact panel 9071, also referred to as touch-screen, collect user on it or neighbouring touch operation
(for example user uses any suitable objects or annex such as finger, stylus on contact panel 9071 or in contact panel 9071
Neighbouring operation).Contact panel 9071 may include both touch detecting apparatus and touch controller.Wherein, touch detection
Device detects the touch orientation of user, and detects the signal that touch operation is brought, and transmits a signal to touch controller；Touch control
Device processed receives touch information from touch detecting apparatus, and is converted into contact coordinate, then gives processor 910, receiving area
Manage the order that device 910 is sent and performed.It is furthermore, it is possible to more using resistance-type, condenser type, infrared ray and surface acoustic wave etc.
Type realizes contact panel 9071.Except contact panel 9071, user input unit 907 can also include other input equipments
9072.Specifically, other input equipments 9072 can include but is not limited to physical keyboard, function key (such as volume control button,
Switch key etc.), trace ball, mouse, operation lever, details are not described herein.
Further, contact panel 9071 can be covered on display panel 9061, when contact panel 9071 is detected at it
On or near touch operation after, send to processor 910 with determine touch event type, be followed by subsequent processing device 910 according to touch
The type for touching event provides corresponding visual output on display panel 9061.Although in the figure 7, contact panel 9071 and display
Panel 9061 is the component independent as two to realize the function that outputs and inputs of mobile terminal, but in some embodiments
In, can be integrated by contact panel 9071 and display panel 9061 and realize the function that outputs and inputs of mobile terminal, it is specific this
Place does not limit.
Interface unit 908 is the interface that external device (ED) is connected with mobile terminal 900.For example, external device (ED) can include
Line or wireless head-band earphone port, external power supply (or battery charger) port, wired or wireless data port, storage card end
Mouth, port, audio input/output (I/O) port, video i/o port, earphone end for connecting the device with identification module
Mouthful etc..Interface unit 908 can be used for receive the input (for example, data message, electric power etc.) from external device (ED) and
One or more elements that the input received is transferred in mobile terminal 900 can be used in 900 He of mobile terminal
Data are transmitted between external device (ED).
Memory 909 can be used for storage software program and various data.Memory 909 can mainly include storing program area
And storage data field, wherein, storing program area can storage program area, application program (such as the sound needed at least one function
Sound playing function, image player function etc.) etc.；Storage data field can store according to mobile phone use created data (such as
Voice data, phone directory etc.) etc..In addition, memory 909 can include high-speed random access memory, can also include non-easy
The property lost memory, a for example, at least disk memory, flush memory device or other volatile solid-state parts.
Processor 910 is the control centre of mobile terminal, utilizes each of various interfaces and the whole mobile terminal of connection
A part, by running or performing the software program and/or module that are stored in memory 909, and calls and is stored in storage
Data in device 909, perform the various functions and processing data of mobile terminal, so as to carry out integral monitoring to mobile terminal.Place
Reason device 910 may include one or more processing units；Preferably, processor 910 can integrate application processor and modulatedemodulate is mediated
Device is managed, wherein, application processor mainly handles operating system, user interface and application program etc., and modem processor is main
Handle wireless communication.It is understood that above-mentioned modem processor can not also be integrated into processor 910.
Mobile terminal 900 can also include the power supply 911 (such as battery) to all parts power supply, it is preferred that power supply 911
Can be logically contiguous by power-supply management system and processor 910, so as to realize management charging by power-supply management system, put
The function such as electricity and power managed.
In addition, mobile terminal 900 includes some unshowned function modules, details are not described herein.
Preferably, the embodiment of the present invention also provides a kind of mobile terminal, including processor 910, and memory 909, is stored in
On memory 909 and the computer program that can be run on the processor 910, the computer program are performed by processor 910
Each process of the control method embodiment of the above-mentioned wireless chargings of Shi Shixian, and identical technique effect can be reached, to avoid weight
Multiple, which is not described herein again.
The embodiment of the present invention also provides a kind of computer-readable recording medium, and meter is stored with computer-readable recording medium
Calculation machine program, the computer program realize each mistake of the control method embodiment of above-mentioned wireless charging when being executed by processor
Journey, and identical technique effect can be reached, to avoid repeating, which is not described herein again.Wherein, the computer-readable storage medium
Matter, such as read-only storage (Read-Only Memory, abbreviation ROM), random access memory (Random Access
Memory, abbreviation RAM), magnetic disc or CD etc..
It should be noted that herein, term " comprising ", "comprising" or its any other variant are intended to non-row
His property includes, so that process, method, article or device including a series of elements not only include those key elements, and
And other elements that are not explicitly listed are further included, or further include as this process, method, article or device institute inherently
Key element.In the absence of more restrictions, the key element limited by sentence "including a ...", it is not excluded that including this
Also there are other identical element in the process of key element, method, article or device.
Through the above description of the embodiments, those skilled in the art can be understood that above-described embodiment side
Method can add the mode of required general hardware platform to realize by software, naturally it is also possible to by hardware, but in many cases
The former is more preferably embodiment.Based on such understanding, technical scheme substantially in other words does the prior art
Going out the part of contribution can be embodied in the form of software product, which is stored in a storage medium
In (such as ROM/RAM, magnetic disc, CD), including some instructions are used so that a station terminal (can be mobile phone, computer, services
Device, air conditioner, or network equipment etc.) perform method described in each embodiment of the present invention.
The embodiment of the present invention is described above in conjunction with attached drawing, but the invention is not limited in above-mentioned specific
Embodiment, above-mentioned embodiment is only schematical, rather than restricted, those of ordinary skill in the art
Under the enlightenment of the present invention, in the case of present inventive concept and scope of the claimed protection is not departed from, it can also make very much
Form, belongs within the protection of the present invention.
Above-described is the preferred embodiment of the present invention, it should be pointed out that is come for the ordinary person of the art
Say, some improvements and modifications can also be made under the premise of principle of the present invention is not departed from, these improvements and modifications also exist
In protection scope of the present invention.
Claims (11)
- A kind of 1. control method of wireless charging, it is characterised in that including：Obtain the bearing power request that the receiving terminal of wireless charging is sent；Asked according to the bearing power, to the receiving terminal output current, if the corresponding output voltage of current output current is low When the voltage threshold of setting, the current output current is determined as with reference to electric current；Target current is exported to the receiving terminal, wherein the target current is less than the reference electric current.
- 2. the control method of wireless charging according to claim 1, it is characterised in that described to be asked according to the bearing power Ask, to the receiving terminal output current, if the corresponding output voltage of current output current is less than the voltage threshold set, by institute Current output current is stated to be determined as with reference to the step of electric current, including：Asked according to the bearing power, by step-by-step system to receiving terminal output current；During by step-by-step system to receiving terminal output current, set if the corresponding output voltage of current output current is less than During fixed voltage threshold, the current output current is determined as with reference to electric current.
- 3. the control method of wireless charging according to claim 2, it is characterised in that it is described by step-by-step system to reception The step of holding output current, including：Initial current is exported to the receiving terminal；According to the current marching technique value of setting, when each stepping time interval T after initial current output is reached, output pair Induced current Iin is to the receiving terminal；Wherein, Iin=Iin_min+N*Iin_step, Iin are the corresponding current, and Iin_min is initial current, Iin_step For current marching technique value, N is the number of the stepping time interval T；Wherein, at the time of the stepping time interval T=T2-T1, T1 send the bearing power request for receiving terminal, T2 is to connect Receiving end is sent at the time of receive output current first after bearing power request.
- 4. the control method of wireless charging according to claim 2, it is characterised in that the output target current is to described The step of receiving terminal, including：Determine by step-by-step system to during receiving terminal output current, a upper output current for the current output current Current value is target current value；According to the target current value, output target current to the receiving terminal.
- 5. the control method of wireless charging according to claim 1, it is characterised in that further include：Asked according to the bearing power, during the receiving terminal output current, if detecting what receiving terminal was sent Next bearing power request, or the interval set is reached away from the time for getting the bearing power request that the receiving terminal is sent During the time, return and perform the step of bearing power that the receiving terminal for obtaining wireless charging is sent is asked.
- A kind of 6. control device of wireless charging, it is characterised in that including：Acquisition module, the bearing power request that the receiving terminal for obtaining wireless charging is sent；Determining module, for being asked according to the bearing power, to the receiving terminal output current, if current output current corresponds to Output voltage less than setting voltage threshold when, the current output current is determined as with reference to electric current；Output module, for exporting target current to the receiving terminal, wherein the target current is less than the reference electric current.
- 7. the control device of wireless charging according to claim 6, it is characterised in that the determining module includes：First output sub-module, for being asked according to the bearing power, by step-by-step system to receiving terminal output current；First determination sub-module, for by step-by-step system to receiving terminal output current during, if current output current When corresponding output voltage is less than the voltage threshold set, the current output current is determined as with reference to electric current.
- 8. the control device of wireless charging according to claim 7, it is characterised in that first output sub-module is specific For：Initial current is exported to the receiving terminal；According to the current marching technique value of setting, when each stepping time interval T after initial current output is reached, output pair Induced current Iin is to the receiving terminal；Wherein, Iin=Iin_min+N*Iin_step, Iin are the corresponding current, and Iin_min is initial current, Iin_step For current marching technique value, N is the number of the stepping time interval T；Wherein, at the time of the stepping time interval T=T2-T1, T1 send the bearing power request for receiving terminal, T2 is to connect Receiving end is sent at the time of receive output current first after bearing power request.
- 9. the control device of wireless charging according to claim 7, it is characterised in that the output module includes：Second determination sub-module, for determining by step-by-step system to during receiving terminal output current, the current output The current value of a upper output current for electric current is target current value；Second output sub-module, for according to the target current value, output target current to the receiving terminal.
- 10. the control device of wireless charging according to claim 6, it is characterised in that further include：Execution module is returned to, for being asked according to the bearing power, during the receiving terminal output current, if inspection Measure next bearing power request of receiving terminal transmission, or away from get bearing power request that the receiving terminal sends when Between when reaching the interval time of setting, return to the step for performing the bearing power request that the receiving terminal for obtaining wireless charging is sent Suddenly.
- 11. a kind of mobile terminal, it is characterised in that including processor, memory and be stored on the memory and can be in institute The computer program run on processor is stated, such as claim 1 to 5 is realized when the computer program is performed by the processor Any one of wireless charging control method the step of.
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| CN201711381911.3A CN107979138B (en) | 2017-12-20 | 2017-12-20 | Wireless charging control method and device |
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| CN201711381911.3A CN107979138B (en) | 2017-12-20 | 2017-12-20 | Wireless charging control method and device |
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| CN110492625A (en) * | 2019-08-05 | 2019-11-22 | Oppo广东移动通信有限公司 | Wireless charging foreign matter detecting method and device, electronic equipment, storage medium |
| CN110770672A (en) * | 2018-11-30 | 2020-02-07 | 深圳市大疆创新科技有限公司 | Load control method and device and movable platform |
| CN111433706A (en) * | 2018-11-30 | 2020-07-17 | 深圳市大疆创新科技有限公司 | Load control circuit and movable platform |
| CN111642000A (en) * | 2020-05-27 | 2020-09-08 | 广东小天才科技有限公司 | Data transmission method and device, electronic equipment and computer readable storage medium |
| CN112219336A (en) * | 2019-04-24 | 2021-01-12 | 谷歌有限责任公司 | Improving wireless charging efficiency |
| CN112910112A (en) * | 2019-11-19 | 2021-06-04 | 青岛海尔智能技术研发有限公司 | Method and device for wireless power supply and wireless power supply system |
| WO2022242347A1 (en) * | 2021-05-18 | 2022-11-24 | Oppo广东移动通信有限公司 | Wireless charging method and apparatus, and storage medium |
| CN115940350A (en) * | 2022-12-12 | 2023-04-07 | 镇江海鸿船舶设备有限公司 | Power supply device of ship main distribution board and control method thereof |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110770672A (en) * | 2018-11-30 | 2020-02-07 | 深圳市大疆创新科技有限公司 | Load control method and device and movable platform |
| WO2020107391A1 (en) * | 2018-11-30 | 2020-06-04 | 深圳市大疆创新科技有限公司 | Load control method and apparatus, and movable platform |
| CN111433706A (en) * | 2018-11-30 | 2020-07-17 | 深圳市大疆创新科技有限公司 | Load control circuit and movable platform |
| CN112219336A (en) * | 2019-04-24 | 2021-01-12 | 谷歌有限责任公司 | Improving wireless charging efficiency |
| CN110492625A (en) * | 2019-08-05 | 2019-11-22 | Oppo广东移动通信有限公司 | Wireless charging foreign matter detecting method and device, electronic equipment, storage medium |
| CN110492625B (en) * | 2019-08-05 | 2023-08-01 | Oppo广东移动通信有限公司 | Wireless charging foreign matter detection method and device, electronic equipment and storage medium |
| CN112910112A (en) * | 2019-11-19 | 2021-06-04 | 青岛海尔智能技术研发有限公司 | Method and device for wireless power supply and wireless power supply system |
| CN111642000A (en) * | 2020-05-27 | 2020-09-08 | 广东小天才科技有限公司 | Data transmission method and device, electronic equipment and computer readable storage medium |
| CN111642000B (en) * | 2020-05-27 | 2021-11-05 | 广东小天才科技有限公司 | Data transmission method and device, electronic equipment and computer readable storage medium |
| WO2022242347A1 (en) * | 2021-05-18 | 2022-11-24 | Oppo广东移动通信有限公司 | Wireless charging method and apparatus, and storage medium |
| CN115940350A (en) * | 2022-12-12 | 2023-04-07 | 镇江海鸿船舶设备有限公司 | Power supply device of ship main distribution board and control method thereof |
| CN115940350B (en) * | 2022-12-12 | 2024-04-09 | 镇江海鸿船舶设备有限公司 | Power supply device of ship main switchboard and control method thereof |
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| CN107979138B (en) | 2021-01-15 |
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