CN105305650B - Wireless charging method, device, wireless charger and wearable device - Google Patents
Wireless charging method, device, wireless charger and wearable device Download PDFInfo
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- CN105305650B CN105305650B CN201510776867.0A CN201510776867A CN105305650B CN 105305650 B CN105305650 B CN 105305650B CN 201510776867 A CN201510776867 A CN 201510776867A CN 105305650 B CN105305650 B CN 105305650B
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- 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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Abstract
The application provides a kind of wireless charging method, device, wireless charger and wearable device, this method comprises: by the load pulse of the first coil sending cycle on the wearable device, so that wireless charger is by being the wearable device charging after the second Coil Detector to the load pulse；During the wearable device carries out charged state, whether the battery capacity for detecting the wearable device completely fills；If the battery capacity completely fills, the load pulse is modulated, load modulation signal is obtained, to notify the wireless charger charging to terminate by the load modulation signal.Communication instruction when the technical solution of the application may be implemented to be identified using the periodic load pulse of wearable device and the corresponding pulse-modulated signal of load pulse between wireless charger and intelligent wearable device in charging, it is only necessary to which the wireless charging to wearable device can be realized in less peripheral components.
Description
Technical field
This application involves wireless charging technical field more particularly to a kind of wireless charging method, device, wireless charger and
Wearable device.
Background technique
With advances in technology and the transition of user demand, form and the application of intelligent wearable device are also constantly becoming
Change, and intelligent wearable device in the prior art is unfavorable for the appearance of intelligent wearable device in such a way that interface realizes charging
Innovation and the demand for realizing waterproof.The wireless charging standard of the prior art includes the following three types: Qi standard, wireless charging alliance
(Power Matters Alliance, referred to as PMA) standard, wireless power alliance (Alliance for Wireless
Power, referred to as A4WP) standard, above-mentioned three kinds of wireless charging standards need special wireless charging protocol chip to charging
Cheng Jinhang control, it is therefore desirable to more peripheral components, and the inner space of intelligent wearable device is smaller, cannot pass through above-mentioned mark
Wireless charging protocol chip and peripheral components required for standard realize wireless charging to intelligent wearable device.
Summary of the invention
In view of this, the application provides a kind of new technical solution, it can be to intelligent wearable device wireless charging.
To achieve the above object, it is as follows to provide technical solution by the application:
According to a first aspect of the present application, a kind of wireless charging method is proposed, is applied on wearable device, comprising:
By the load pulse of the first coil sending cycle on the wearable device, so that wireless charger passes through
It is the wearable device charging after second Coil Detector to the load pulse；
The wearable device carry out charged state during, detect the wearable device battery capacity whether
Man Chong；
If the battery capacity completely fills, the load pulse is modulated, load modulation signal is obtained, to pass through
Stating load modulation signal notifies the wireless charger charging to terminate.
According to a second aspect of the present application, a kind of wireless charging method is proposed, is applied on wireless charger, comprising:
If passing through the week of the second Coil Detector of the wireless charger to the first coil on wearable device
The load pulse of phase property controls the wearable device and enters charged state；
In the charged state, it is determined whether detect the load modulation signal from the wearable device；
If detecting the load modulation signal, the wireless charger stopping is controlled to the nothing of the wearable device
Line charge electricity.
According to the third aspect of the application, a kind of wireless charging device is proposed, is applied on wearable device, comprising:
First sending module, for the load pulse by the first coil sending cycle on the wearable device,
So that wireless charger is by being the wearable device charging after the second Coil Detector to the load pulse；
First detection module, for the wearable device by first sending module send load pulse into
During row charged state, whether the battery capacity for detecting the wearable device completely fills；
Signal modulation module, if the first detection module detects that the battery capacity completely fills, to the load arteries and veins
Punching is modulated, and obtains load modulation signal, and the load pulse is sent to the wireless charging by the first coil
Device, to notify the wireless charger charging to terminate by the load modulation signal.
According to the fourth aspect of the application, a kind of wireless charging device is proposed, is applied on wireless charger, comprising:
First control module, if for the second Coil Detector by the wireless charger to from wearable device
On first coil periodic load pulse, control the wearable device and enter charged state；
First determining module, the charged state for being controlled in first control module, it is determined whether detect
Load modulation signal from the wearable device；
Second control module, if confirmly detecting the load modulation signal for first determining module, control
The wireless charger stops the wireless charging to the wearable device.
According to the 5th of the application the aspect, a kind of wearable device is proposed, the wearable device includes:
First coil, for the load pulse of sending cycle, so that wireless charger passes through the second Coil Detector to institute
Stating after load pulse is the wearable device charging；
Battery management chip, for detecting described wearable during the wearable device carries out charged state
Whether the battery capacity of equipment completely fills；
First microprocessor controls signal if detecting that the battery capacity completely fills for the battery management chip
Modulation module is modulated the load pulse, obtains load modulation signal, to notify institute by the load modulation signal
Stating wireless charger charging terminates.
According to the 6th of the application the aspect, a kind of wireless charger is proposed, the wireless charger includes:
Second coil, for detecting the periodic load pulse of the first coil on wearable device；
Second microprocessor, for controlling the wearable device when second Coil Detector is to the load pulse
Into charged state, in the charged state, it is determined whether detect the load modulation signal from the wearable device；Such as
Fruit detects the load modulation signal, controls the wireless charger stopping to the wireless charging of the wearable device.
By above technical scheme as it can be seen that the application, which realizes, utilizes the periodic load pulse of wearable device and load
The corresponding pulse-modulated signal of pulse come identify between wireless charger and intelligent wearable device charging when communication instruction, by
It is the characteristic of wearable device itself in load pulse, therefore does not need additional circuit on wearable device to generate load arteries and veins
Punching, therefore only need less peripheral components that the wireless charging to wearable device can be realized, circuit is simple and occupies body
Product is small, therefore is suitable for the wearable device of the low-power consumption stringent to circuit volume requirement.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the wearable device provided according to an exemplary embodiment of the invention；
Fig. 2 is the structural schematic diagram of the wireless charger provided according to an exemplary embodiment of the invention；
Fig. 3 A is the flow diagram of the wireless charging method provided according to an exemplary embodiment of the invention；
Fig. 3 B is the schematic diagram of the load pulse provided according to an exemplary embodiment of the invention；
Fig. 3 C is the schematic diagram of the load modulation signal provided according to an exemplary embodiment of the invention；
Fig. 4 A is the flow diagram of the wireless charging method provided according to another exemplary embodiment of the present invention；
Fig. 4 B for according to another exemplary embodiment of the present invention provide wireless charger transmitting direct impulse schematic diagram；
Fig. 5 is the flow diagram of the wireless charging method provided according to another exemplary embodiment of the invention；
Fig. 6 is the flow diagram of the wireless charging method provided according to another exemplary embodiment of the present invention；
Fig. 7 is the structural schematic diagram of the wireless charging device provided according to an exemplary embodiment of the invention；
Fig. 8 is the structural schematic diagram of the wireless charging device provided according to another exemplary embodiment of the present invention；
Fig. 9 is the structural schematic diagram of the wireless charging device provided according to another exemplary embodiment of the invention；
Figure 10 is the structural schematic diagram of the wireless charging device provided according to another exemplary embodiment of the present invention.
Specific embodiment
Example embodiments are described in detail here, and the example is illustrated in the accompanying drawings.Following description is related to
When attached drawing, unless otherwise indicated, the same numbers in different drawings indicate the same or similar elements.Following exemplary embodiment
Described in embodiment do not represent all embodiments consistent with the application.On the contrary, they be only with it is such as appended
The example of the consistent device and method of some aspects be described in detail in claims, the application.
It is only to be not intended to be limiting the application merely for for the purpose of describing particular embodiments in term used in this application.
It is also intended in the application and the "an" of singular used in the attached claims, " described " and "the" including majority
Form, unless the context clearly indicates other meaning.It is also understood that term "and/or" used herein refers to and wraps
It may be combined containing one or more associated any or all of project listed.
It will be appreciated that though various information, but this may be described using term first, second, third, etc. in the application
A little information should not necessarily be limited by these terms.These terms are only used to for same type of information being distinguished from each other out.For example, not departing from
In the case where the application range, the first information can also be referred to as the second information, and similarly, the second information can also be referred to as
One information.Depending on context, word as used in this " if " can be construed to " ... when " or " when ...
When " or " in response to determination ".
Fig. 1 is the structural schematic diagram of the wearable device provided according to an exemplary embodiment of the invention；As shown in Figure 1,
Wearable device includes: first coil 11, charging management chip 12, rechargeable battery 13, first microprocessor 14 and motor
15；Wherein, when wearable device, which does not pass through first coil 11, to charge to rechargeable battery 13, charging management chip 12 is logical
Rechargeable battery 13 is crossed as the power supply of first microprocessor 14, wherein charging management chip 12 may include low pressure difference linear voltage regulator
(Low Dropout Linera Regulators, referred to as LDO) function and Charge Management function；When wearable device is in
When charged state, charging management chip 12 is the charging of rechargeable battery 13 by first coil 11, and is first microprocessor 14
Power supply.
Since wearable device has the characteristic for periodically waking up suspend mode, wearable device be will form periodically
Load pulse, can be using periodic load pulse as the identity of wireless charger identification wearable device, for nothing
Line charge electric appliance is identified according to the load pulse and is charged after wearable device for it.
In one embodiment, wearable device can also include motor 15 or load modulation circuit, work as charging management chip
12 when detecting that the electricity of rechargeable battery 13 is full of, and charging management chip 12 can send a finger to first microprocessor 14
Show signal, make first microprocessor 14 according to the indication signal control motor 15 in a manner of setting time interval alternately connect and
The mode of disconnection is modulated load pulse, wherein setting time interval can be the time span of millisecond magnitude.Another
In embodiment, the modulation to load current can be actively formed by load modulation circuit (not shown), is formed specific
Modulation waveform, notice wireless charger terminate to charge；Wireless charger terminates charging by detecting this specific load waveform.
Fig. 2 is the structural schematic diagram of the wireless charger provided according to an exemplary embodiment of the invention；As shown in Fig. 2,
Wireless charger can include: the second coil 21, the second microprocessor 22, switch mosfet 23 and filter circuit 24.Wherein, micro-
Processor 23 can detect the load pulse from wearable device by periodically emission detection pulse.
When wearable device is placed on wireless charger, the load for the constant cycle that wireless charger is able to detect that
Pulse, wireless charger keeps acquisition mode, and connects switch mosfet 23, to be filled by the second coil 21 for wearable device
Electricity；In addition, filter circuit 24 can be used to filter out the noise current for flowing through the second coil 21.In addition, if the second microprocessor
The current value of 22 load pulses detected is constant and is greater than a preset threshold, can be determined on wireless charger at this time
It is provided with foreign matter, the second microprocessor 22 can control the shutdown of switch mosfet 23, to realize the function of foreign bodies detection (FOD)
Can, in this case, wireless charger can keep continuing the state of emission detection pulse, so that it is guaranteed that subsequent be able to detect that
Wearable device.
By the description of foregoing circuit it is found that the application can make full use of itself spy of the hardware circuit of wearable device
Point can realize the communication identification of wireless charger and intelligent wearable device by load pulse and direct impulse, and can
The circuit of wearable device and wireless charger is simple, occupies small in size, therefore is suitable for stringent to circuit volume requirement low
The wearable device of power consumption.
The application is further detailed by the following example below with reference to above-mentioned Fig. 1 and Fig. 2:
Fig. 3 A is the flow diagram of the wireless charging method provided according to an exemplary embodiment of the invention, and Fig. 3 B is root
According to the schematic diagram for the load pulse that an exemplary embodiment of the invention provides, Fig. 3 C is to be mentioned according to an exemplary embodiment of the invention
The schematic diagram of the load modulation signal of confession；As shown in Figure 3A, include the following steps:
Step 301, by the load pulse of the first coil sending cycle on wearable device, for wireless charger
By being that wearable device charges after the second Coil Detector to load pulse.
Step 302, wearable device carry out charged state during, detect wearable device battery capacity whether
Man Chong.
Step 303, if battery capacity completely fills, load pulse is modulated, obtains load modulation signal, by negative
Carrying modulated signal notice wireless charger charging terminates.
In step 301, load pulse may refer to shown in Fig. 3 B, and in one embodiment, period of load pulse can be with
It is determined, and negotiated between corresponding wireless charger, the application according to the type of wearable device or model
With no restrictions to the size in period of load pulse.
It in step 302, in one embodiment, can to detect by above-mentioned charging management chip 12 shown in FIG. 1
Whether the electricity of the rechargeable battery 13 of wearable device is full of.
It in step 303, in one embodiment, can be by controlling the motor of wearable device with setting time interval
The mode that mode turns on and off alternatively is modulated load pulse；In another embodiment, wearable device can be passed through
Load modulation circuit load pulse is modulated, form the load modulation signal of setting.Load modulation signal may refer to
Shown in Fig. 3 C, by the side that first microprocessor 14 is turned on and off alternatively in a manner of setting time interval by control motor 15
Formula is illustrated for being modulated to load pulse shown in Fig. 3 B, when charging management chip 12 detects rechargeable battery 13
When completely filling, first microprocessor 14 controls the vibration of motor 15 twice, to form the load modulation an of high current, and then makes to bear
Modulated signal is carried to show in a manner of Fig. 3 C.
Seen from the above description, 301- step 303 is realized and is set using wearable the embodiment of the present invention through the above steps
Standby periodic load pulse and the corresponding pulse-modulated signal of load pulse set to identify that wireless charger and intelligence are dressed
Communication instruction between standby in charging, due to the characteristic that load pulse is wearable device itself, on wearable device
Additional circuit is not needed to generate load pulse, therefore less peripheral components is only needed to can be realized to wearable device
Wireless charging, circuit is simple and occupies small in size, therefore is suitable for the wearable of the low-power consumption stringent to circuit volume requirement
Equipment.
Fig. 4 A is the flow diagram of the wireless charging method provided according to another exemplary embodiment of the present invention, and Fig. 4 B is
Another exemplary embodiment provides the schematic diagram of the direct impulse of wireless charger transmitting according to the present invention；As shown in Figure 4 A, it wraps
Include following steps:
Step 401, if passing through the second Coil Detector of wireless charger to the first coil on wearable device
Periodic load pulse, control wearable device enter charged state；
Step 402, in charged state, it is determined whether detect the load modulation signal from wearable device；
Step 403, if detecting load modulation signal, control wireless charger stops the wireless charging to wearable device
Electricity.
The related description of the load modulation signal in load pulse and step 402 in above-mentioned steps 401 may refer to
The related description of above-mentioned Fig. 3 A illustrated embodiment, this will not be detailed here.
In step 403, in one embodiment, wireless charging can be controlled by disconnecting the switch 23 in above-mentioned Fig. 2
Device stops to the wireless charging of wearable device, for example, the second microprocessor 22 by switch 23 send a low level with
The shutdown of control switch 23.As shown in Figure 4 B, the direct impulse of wireless charger transmitting can be intermittent to set period change
Change, for example, setting the period as 100KHz.
In the present embodiment, the embodiment of the present invention is by the second Coil Detector of wireless charger on wearable device
First coil periodic load pulse, control wearable device enter charged state, if detected in charged state
Load modulation signal, control wireless charger stops the wireless charging to wearable device, it is thus achieved that passing through load pulse
And the corresponding pulse-modulated signal of load pulse come identify between intelligent wearable device charging when communication instruction, so as to
So that wireless charger does not need additional peripheral components and can carry out wireless charging to wearable device, thus to wireless charging
Electric appliance only needs relatively simple circuit structure can be realized when improving, and reduces the hardware cost of wireless charger.
Fig. 5 is the flow diagram of the wireless charging method provided according to another exemplary embodiment of the invention；This implementation
Example carries out overcurrent protection to wireless charger and is how to detect when the internal circuit of wearable device has abnormal or short circuit
Example illustrates, and the present embodiment combination Fig. 2 is illustrated, as shown in figure 5, including the following steps:
Step 501, the load current for flowing through the second coil of wireless charger is detected whether more than the first preset threshold, such as
Fruit load current is more than the first preset threshold, executes step 502, if load current overcurrent, executes step 504.
Step 502, if load current is less than the first preset threshold, determine that the charging of wireless charger identifies whether table
Show that wireless charger charging terminates, if charging mark indicates chargeable state, execute step 503, if charging mark indicates
Charge end state, can detect on wireless charger whether be placed with foreign matter by following embodiment illustrated in fig. 6, herein first not
It is described in detail.
Step 503, if charging mark indicates chargeable state, control wearable device enters charged state, and according to
The mode of above-mentioned Fig. 4 A illustrated embodiment charges to wearable device, and process terminates.
Step 504, if load current is more than the first preset threshold, determine that wireless charger is in charging abnormality.
Step 505, the wireless charging to wearable device is terminated, and sets charging end state for charging mark.
In step 501, the second microprocessor 22 can by filter circuit 24 to flow through the electric current of the second coil 21 into
After row filtering, whether the load current for flowing through the second coil 21 is determined more than the first preset threshold, in one embodiment, second is micro-
Processor 22 can set the range of a load current when wearable device charges normal to determine the first preset threshold, such as
Fruit is more than that first preset threshold can determine load current overcurrent.
In step 502, in one embodiment, charging mark (EndFlag) can be set when indicating chargeable state
It is 0, when the second microprocessor 22 needs to terminate the charged state to wearable device, sets 1 for charging mark.One
In embodiment, when wireless charger does not receive the load pulse from wearable device, indicate wearable device from
Removed on wireless charger or wireless charger on do not place wearable device, at this time can by the charging identify be set to 0.
In step 504 and step 505, when there is abnormal or short circuit in the internal circuit of wearable device, wireless charging
Electric appliance can detect that load current is bigger than normal, for example, the second microprocessor 22 detects that load current is greater than a preset threshold, this
When the second microprocessor 22 to can be determined that charging occurs in wearable device abnormal, in order to ensure wearable device will not be biggish
Electric current damages, and the second microprocessor 22 can control the shutdown of switch 23, to realize the overcurrent protection function to wearable device
Energy.
In the present embodiment, by detect flow through wireless charger the second coil load current whether overcurrent, loading
In the case where overcurrent, the wireless charging to wearable device is terminated, so as to protect wearable device larger
Electric current damage fall, extend the service life of wearable device.
Fig. 6 is the flow diagram of the wireless charging method provided according to another exemplary embodiment of the present invention；This implementation
Example is illustrated for how detecting and be placed with foreign matter on wireless charger, and the present embodiment combination Fig. 2 is illustrated,
As shown in fig. 6, including the following steps:
Step 601, if the First Line on wearable device is not detected in the second coil by wireless charger
The charging mark of wireless charger is set chargeable state by the periodic load pulse of circle.
Step 602, the load current for flowing through the second coil is determined whether more than the second preset threshold, if current value is more than
Second preset threshold executes step 603, if current value is less than the second preset threshold, continues emission detection pulse；
Step 603, it if current value is more than the second preset threshold, determines and is provided with foreign matter on wireless charger.
Step 604, control wireless charger stops charging to wearable device, and wireless charger is kept to be in lasting transmitting
The state of direct impulse.
The associated description of step 601 may refer to the description of above-mentioned steps 502, and this will not be detailed here.
In step 602 and step 603, if the second microprocessor 22 still is able to detect in EndFlag==0
The load current on the second coil 21 is flowed through, and flows through the load current of the second coil 21 more than the second preset threshold, this
When can determine and be placed with metal block etc. on wireless charger, since the induction of the metal block causes to flow through the negative of the second coil 21
It carries electric current to increase, and the load current is constant current, may thereby determine that and is provided with foreign matter on wireless charger.
Direct impulse in step 604 may refer to shown in above-mentioned Fig. 4 B, and this will not be detailed here.
In the present embodiment, to flowing through the second line in the case of the charging of wireless charger mark is set as chargeable state
The load current of circle is detected, and be may thereby determine that whether be placed with foreign matter on wireless charger, is realized foreign bodies detection
(FOD) function, it is ensured that the normal charging condition of wireless charger is not disturbed.
Through the foregoing embodiment, the characteristics of the application is by utilizing wearable device circuit itself realizes wireless charger
With the communication identification of intelligent wearable device, the peripheral circuit of wearable device and wireless charger is simple, and occupancy is small in size, because
Find particular application for the wearable electronic products to the stringent low-power consumption of circuit volume requirement for this.
Fig. 7 is the structural schematic diagram of the wireless charging device provided according to an exemplary embodiment of the invention；Such as Fig. 7 institute
Show, which may include: the first sending module 71, first detection module 72, signal modulation module 73.Wherein:
First sending module 71, for the load pulse by the first coil sending cycle on wearable device, with
For wireless charger by charging after the second Coil Detector to load pulse for wearable device；
First detection module 72, for being filled in wearable device by the load pulse that the first sending module 71 is sent
During electricity condition, whether the battery capacity for detecting wearable device completely fills；
Signal modulation module 73 adjusts load pulse if first detection module 72 detects that battery capacity completely fills
System, obtains load modulation signal, load pulse is sent to wireless charger by first coil, to pass through load modulation signal
Notice wireless charger charging terminates.
Fig. 8 is the structural schematic diagram of the wireless charging device provided according to another exemplary embodiment of the present invention；Such as Fig. 8 institute
Show, on the basis of above-mentioned embodiment illustrated in fig. 7, in one embodiment, signal modulation module 73 includes:
First modulation unit 731, for being replaced in a manner of setting time interval the motor for controlling wearable device
The mode switched on and off is modulated load pulse.
In one embodiment, signal modulation module may also include that
Second modulation unit 732, for being modulated by the load modulation circuit of wearable device to load pulse, shape
At the load modulation signal of setting.
Fig. 9 is the structural schematic diagram of the wireless charging device provided according to another exemplary embodiment of the invention；Such as Fig. 9 institute
Show, which may include: the first control module 91, the first determining module 92, the second control module 93.Wherein:
First control module 91, if for the second Coil Detector by wireless charger to from wearable device
First coil periodic load pulse, control wearable device enter charged state；
First determining module 92, the charged state for being controlled in the first control module 91, it is determined whether detect and come from
The load modulation signal of wearable device；
Second control module 93, if confirmly detecting load modulation signal for the first determining module 92, control is wireless
Charger stops the wireless charging to wearable device.
Figure 10 is the structural schematic diagram of the wireless charging device provided according to another exemplary embodiment of the present invention；Such as figure
10, on the basis of above-mentioned embodiment illustrated in fig. 9, device may also include that
Second detection module 94, for whether detecting the load current for flowing through the second coil of wireless charger more than first
Preset threshold；
Second determining module 95, if detecting that load current is less than the first default threshold for the second detection module 94
Value determines that the charging of wireless charger identifies whether to indicate that wireless charger charging terminates；
If the second determining module 95 determines that charging mark indicates chargeable state, the first control module 91 executes control can
Wearable device enters the step of charged state.
In one embodiment, device may also include that
Third determining module 96, if detecting that load current is more than the first preset threshold for the second detection module 94,
Determine that wireless charger is in charging abnormality；
Second control module 93 is also used to the termination when 96 wireless charger of third determining module is in charging abnormality
Charging end state is set as to the wireless charging of wearable device, and by charging mark.
In one embodiment, device may also include that
Identify and arrange module 97, if for being not detected by the second coil of wireless charger from wearable device
On first coil periodic load pulse, set chargeable state for the charging of wireless charger mark.
In one embodiment, device may also include that
4th determining module 98, for determining the load current for flowing through the second coil whether more than the second preset threshold；
5th determining module 99, if determining that load current is more than the second preset threshold for the 4th determining module 98, really
Determine to be provided with foreign matter on wireless charger.
Above-described embodiment realizes wireless charger as it can be seen that the characteristics of the application is by utilizing wearable device circuit itself
With the communication identification of intelligent wearable device, the peripheral circuit of wearable device and wireless charger is simple, and occupancy is small in size, because
Find particular application for the wearable electronic products to the stringent low-power consumption of circuit volume requirement for this.
Those skilled in the art after considering the specification and implementing the invention disclosed here, will readily occur to its of the application
Its embodiment.This application is intended to cover any variations, uses, or adaptations of the application, these modifications, purposes or
Person's adaptive change follows the general principle of the application and including the undocumented common knowledge in the art of the application
Or conventional techniques.The description and examples are only to be considered as illustrative, and the true scope and spirit of the application are by following
Claim is pointed out.
It should also be noted that, the terms "include", "comprise" or its any other variant are intended to nonexcludability
It include so that the process, method, commodity or the equipment that include a series of elements not only include those elements, but also to wrap
Include other elements that are not explicitly listed, or further include for this process, method, commodity or equipment intrinsic want
Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including described want
There is also other identical elements in the process, method of element, commodity or equipment.
The foregoing is merely the preferred embodiments of the application, not to limit the application, all essences in the application
Within mind and principle, any modification, equivalent substitution, improvement and etc. done be should be included within the scope of the application protection.
Claims (20)
1. a kind of wireless charging method, is applied on wearable device characterized by comprising
By the load pulse of the first coil sending cycle on the wearable device, so that wireless charger passes through second
It is wearable device charging after Coil Detector to the load pulse, wherein the load pulse refers to described to wear
The periodic wake-up hibernation feature that wearing equipment has is formed by load pulse；
During the wearable device carries out charged state, whether the battery capacity for detecting the wearable device is full
It fills；
If the battery capacity completely fills, the load pulse is modulated, load modulation signal is obtained, by described negative
Carrying modulated signal notifies the wireless charger charging to terminate.
2. the method according to claim 1, wherein described be modulated the load pulse, comprising:
To institute in such a way that the motor of the control wearable device is turned on and off alternatively in a manner of setting time interval
Load pulse is stated to be modulated.
3. the method according to claim 1, wherein described be modulated the load pulse, comprising:
The load pulse is modulated by the load modulation circuit of the wearable device, forms the load modulation of setting
Signal.
4. a kind of wireless charging method, is applied on wireless charger characterized by comprising
If passing through the periodicity of the second Coil Detector of the wireless charger to the first coil on wearable device
Load pulse, control the wearable device and enter charged state, wherein the load pulse refers to described wearable set
The standby periodic wake-up hibernation feature having is formed by load pulse；
In the charged state, it is determined whether detect the load modulation signal from the wearable device；
If detecting the load modulation signal, the wireless charger stopping is controlled to the wireless charging of the wearable device
Electricity.
5. according to the method described in claim 4, it is characterized in that, the method also includes:
Whether detection flows through the load current of the second coil of the wireless charger more than the first preset threshold；
If the load current is less than first preset threshold, determine that the charging of the wireless charger identifies whether table
Show that the wireless charger charging terminates；
If the charging mark indicates chargeable state, the step that the control wearable device enters charged state is executed
Suddenly.
6. according to the method described in claim 5, it is characterized in that, the method also includes:
If the load current is more than first preset threshold, determine that the wireless charger is in charging abnormality；
The wireless charging to the wearable device is terminated, and sets charging end state for charging mark.
7. according to the method described in claim 4, it is characterized in that, the method also includes:
If the period of the first coil on wearable device is not detected by the second coil of the wireless charger
Property load pulse, set chargeable state for the charging of wireless charger mark.
8. the method according to the description of claim 7 is characterized in that the method also includes:
Determine the load current for flowing through second coil whether more than the second preset threshold；
If the load current is more than second preset threshold, determines and be provided with foreign matter on the wireless charger.
9. a kind of wireless charging device, is applied on wearable device characterized by comprising
First sending module, for the load pulse by the first coil sending cycle on the wearable device, for
Wireless charger is the wearable device charging after passing through the second Coil Detector to the load pulse, wherein the load
The periodic wake-up hibernation feature that pulse refers to that the wearable device has is formed by load pulse；
First detection module, for being filled in the wearable device by the load pulse that first sending module is sent
During electricity condition, whether the battery capacity for detecting the wearable device completely fills；
Signal modulation module, if the first detection module detects that the battery capacity completely fills, to the load pulse into
Row modulation, obtains load modulation signal, the load pulse is sent to the wireless charger by the first coil, with
The wireless charger charging is notified to terminate by the load modulation signal.
10. device according to claim 9, which is characterized in that the signal modulation module includes:
First modulation unit, for alternately being connected in a manner of setting time interval the motor for controlling the wearable device
The load pulse is modulated with the mode of disconnection.
11. device according to claim 9, which is characterized in that the signal modulation module includes:
Second modulation unit, for being modulated by the load modulation circuit of the wearable device to the load pulse,
Form the load modulation signal of setting.
12. a kind of wireless charging device, is applied on wireless charger characterized by comprising
First control module, if for the second Coil Detector by the wireless charger on wearable device
The periodic load pulse of first coil controls the wearable device and enters charged state, wherein the load pulse refers to
Be that the periodic wake-up hibernation feature that the wearable device has is formed by load pulse；
First determining module, the charged state for being controlled in first control module, it is determined whether detect and come from
The load modulation signal of the wearable device；
Second control module, if confirmly detecting the load modulation signal for first determining module, described in control
Wireless charger stops the wireless charging to the wearable device.
13. device according to claim 12, which is characterized in that described device further include:
Second detection module, for detect flow through the second coil of the wireless charger load current it is whether pre- more than first
If threshold value；
Second determining module, if it is default to detect that the load current is less than described first for second detection module
Threshold value determines that the charging of the wireless charger identifies whether to indicate that the wireless charger charging terminates；
If second determining module determines that the charging mark indicates that chargeable state, first control module execute institute
State the step of control wearable device enters charged state.
14. device according to claim 13, which is characterized in that described device further include:
Third determining module, if detecting that the load current is more than the described first default threshold for second detection module
Value determines that the wireless charger is in charging abnormality；
Second control module is also used to terminate the wireless charging to the wearable device, and the charging is identified and is arranged
For the end state that charges.
15. device according to claim 12, which is characterized in that described device further include:
Identify and arrange module, if for being not detected by the second coil of the wireless charger from wearable device
First coil periodic load pulse, set chargeable state for the charging of wireless charger mark.
16. device according to claim 15, which is characterized in that described device further include:
4th determining module, for determining the load current for flowing through second coil whether more than the second preset threshold；
5th determining module, if determining that the load current is more than the described second default threshold for the 4th determining module
Value, determines and is provided with foreign matter on the wireless charger.
17. a kind of wearable device, which is characterized in that the wearable device includes:
First coil, for the load pulse of sending cycle, so that wireless charger is born by the second Coil Detector to described
It is the wearable device charging after load pulse, wherein the load pulse refers to the period that the wearable device has
The wake-up hibernation feature of property is formed by load pulse；
Battery management chip, for detecting the wearable device during wearable device carries out charged state
Battery capacity whether completely fill；
First microprocessor controls signal modulation if detecting that the battery capacity completely fills for the battery management chip
Module is modulated the load pulse, obtains load modulation signal, to notify the nothing by the load modulation signal
The charging of line charge electric appliance terminates.
18. wearable device according to claim 17, which is characterized in that the wearable device further include:
Motor, the side for being turned on and off alternatively in a manner of setting time interval under the control of the first microprocessor
Formula is modulated the load pulse；And/or
Pulse modulated circuit, for being modulated under the control of the first microprocessor to the load pulse, formation is set
Fixed load modulation signal.
19. a kind of wireless charger, which is characterized in that the wireless charger includes:
Second coil, for detecting the periodic load pulse of the first coil on wearable device, wherein described negative
It carries the periodic wake-up hibernation feature that pulse refers to that the wearable device has and is formed by load pulse；
Second microprocessor enters for controlling the wearable device when second Coil Detector is to the load pulse
Charged state, in the charged state, it is determined whether detect the load modulation signal from the wearable device；If inspection
The load modulation signal is measured, controls the wireless charger stopping to the wireless charging of the wearable device.
20. wireless charger according to claim 19, which is characterized in that the wireless charger includes:
Switch mosfet, for being connected under the control of second microprocessor, to be detected by second coil transmissions
Pulse；And the current value of the load pulse detected in second microprocessor is constant and is greater than a preset threshold
When be turned off.
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| US10389159B2 (en) * | 2016-10-01 | 2019-08-20 | Intel Corporation | Wireless charging system and method |
| CN107171456B (en) * | 2017-04-26 | 2020-08-11 | 上海掌门科技有限公司 | Wireless charging method with anti-shake processing, watch and storage medium |
| CN107945490A (en) * | 2017-12-05 | 2018-04-20 | 无锡市瀚为科技有限公司 | A kind of means of communication suitable for wireless charging system |
| CN113258627A (en) * | 2020-02-12 | 2021-08-13 | 北京小米移动软件有限公司 | Reverse charging method, device, terminal and storage medium |
| CN114710738B (en) * | 2022-03-31 | 2023-03-24 | 深圳市微源半导体股份有限公司 | Sweat detection method of TWS earphone based on communication mode |
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