CN104505896B - A kind of wireless charging control method and device - Google Patents
A kind of wireless charging control method and device Download PDFInfo
- Publication number
- CN104505896B CN104505896B CN201410846103.XA CN201410846103A CN104505896B CN 104505896 B CN104505896 B CN 104505896B CN 201410846103 A CN201410846103 A CN 201410846103A CN 104505896 B CN104505896 B CN 104505896B
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- 238000007600 charging Methods 0.000 title claims abstract description 152
- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000012549 training Methods 0.000 claims abstract description 9
- 238000001514 detection method Methods 0.000 claims abstract description 5
- 230000006698 induction Effects 0.000 claims abstract description 4
- 239000004065 semiconductor Substances 0.000 claims description 6
- 230000011664 signaling Effects 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims 1
- 238000004891 communication Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
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- H02J7/025—
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
Abstract
The present invention relates to a kind of wireless charging control method, wireless charging device includes multiple wireless charging units, including step：A：The wireless charging unit is arranged on training in rotation detection state, and the multiple wireless charging unit gathers the induced signal of corresponding induction zone, induced signal is transferred into control unit；B：The corresponding induced signal of more the multiple wireless charging unit of described control unit；C：Connect the path of the wireless charging unit and power subsystem corresponding to most strong induced signal.Wherein wireless charging device includes multiple wireless charging units, under the situation charged without terminal, wireless charging unit training in rotation has detected whether that terminal is charged, if having, control unit just receives the induced signal of all wireless charging units, judge wherein induced signal most strong wireless charging unit, and then the path of the wireless charging unit and power module is connected, it is that terminal is charged.
Description
Technical field
The present invention relates to wireless charging field, more particularly to a kind of wireless charging control method and device.
Background technology
Meet WPC（Wireless Power Consortium, wireless charging alliance）The wireless charging of QI standards is present
Increasingly popularize, onboard wireless charger also begins to commercially occur, WPC wireless charging principles, system is by transmitting terminal and connects
Receiving end is constituted, and transmitting terminal mainly has primary coil, communication and control unit, and electric power transfer unit is constituted, receiving terminal secondary coil,
Communication and control unit, power reception unit, load are constituted, and by electromagnetic induction technology, energy is transmitted by primary coil
Give receiving terminal secondary coil, transmission frequency 112KHz--205KHz.
Because the requirement of wireless charging WPC standards one-to-one can only be charged, a charger to a recipient, on car due to
Jolt larger, user wishes bigger charging area, as long as mobile phone to be arbitrarily put into charger surface, it is possible to mobile phone, and
If simple that two transmitting terminals are side-by-side, a mobile phone is placed on above, necessarily causes confusion, it is impossible to normal work.
The content of the invention
In view of in place of above-mentioned the deficiencies in the prior art, it is an object of the invention to provide a kind of wireless charging control method and
Device increases a mcu with iic bus function, nothing is read by IIC there is provided a kind of charging area for increasing wireless charging
The signal intensity detected of line charging module, the signal intensity size that two wireless chargings of contrast are obtained, so that strong to signal
The strong wireless charger of degree is powered, the weak wireless charger of cut-off signal intensity.
In order to achieve the above object, this invention takes following technical scheme：
A kind of wireless charging control method, wireless charging device includes multiple wireless charging units, including step：
A：The wireless charging unit is arranged on training in rotation detection state, and the multiple wireless charging unit gathers corresponding sense
The induced signal in area is answered, induced signal is transferred to control unit；
B：The corresponding induced signal of more the multiple wireless charging unit of described control unit；
C：Connect the path of the wireless charging unit and power subsystem corresponding to most strong induced signal.
Described wireless charging control method, the training in rotation is detected as：Every first scheduled time the multiple wireless charging
Induced signal is taken turns in electric unit collection one.
Described wireless charging control method, first scheduled time is 200ms.
Described wireless charging control method, in addition to step：
D：After the path of wireless charging unit and power subsystem is connected, every second scheduled time the multiple wireless charging
Induced signal is taken turns in electric unit collection one；
E：The corresponding induced signal of more the multiple wireless charging unit of described control unit, connects induced signal most strong
The wireless charging unit and the power subsystem path.
Described wireless charging control method, second scheduled time is 400ms.
Described wireless charging control method, also includes switch between the wireless charging unit and the power subsystem,
The switch is also connected with described control unit.
Described wireless charging control method, the switch is metal-oxide-semiconductor；Described control unit and the wireless charging unit
Between connected by IIC lines.
A kind of wireless charging device using described wireless charging control method, including：
Multiple wireless charging units, for being charged to terminal, and detect terminal signaling；
Power subsystem, for providing terminal charge power supply for the multiple wireless charging unit；
Control unit, for receiving the induced signal of the wireless charging unit, and carries out the contrast of signal strength, and then
Control the break-make between the wireless charging unit and the power subsystem；
Described control unit is connected respectively at the multiple wireless charging unit and power subsystem；The power subsystem is also
It is connected respectively with the multiple wireless charging unit.
Described wireless charging device, also includes switch between the wireless charging unit and the power subsystem, described
Switch is also connected with described control unit.
Described wireless charging device, the switch is metal-oxide-semiconductor；Between described control unit and the wireless charging unit
Connected by IIC lines.
A kind of wireless charging control method and device provided compared to prior art, the present invention, wherein wireless charging Denso
Put including multiple wireless charging units, under the situation charged without terminal, wireless charging unit training in rotation has been detected whether
Terminal is charged, if having, and control unit just receives the induced signal of all wireless charging units, judges wherein sensing letter
Number most strong wireless charging unit, and then the path of the wireless charging unit and power module is connected, it is that terminal is charged；
The application adds the quantity of wireless charging unit, and then increases the area that can be charged, and can more deal with such as car
Compare the wireless charging for situations such as jolting, be the tremendous improvement of this area.
Brief description of the drawings
The wireless charging control method flow chart that Fig. 1 provides for the application.
The wireless charging device structured flowchart that Fig. 2 provides for the application.
Embodiment
The present invention provides a kind of wireless charging control method and device, to make the purpose of the present invention, technical scheme and effect
Clearer, clear and definite, the present invention is described in more detail for the embodiment that develops simultaneously referring to the drawings.It should be appreciated that this place is retouched
The specific embodiment stated only to explain the present invention, is not intended to limit the present invention.
Referring to Fig. 1, the application provides a kind of wireless charging control method, wireless charging device includes multiple wireless chargings
Unit, including：
S100, the wireless charging unit are arranged on training in rotation detection state, the multiple wireless charging unit collection correspondence
Induction zone induced signal, induced signal is transferred to control unit；
The corresponding induced signal of more the multiple wireless charging unit of S200, described control unit；
S300, the path for connecting wireless charging unit and power subsystem corresponding to most strong induced signal.
Specifically, the terminal to be charged is the terminal with wireless charging function, for example, there is the hand of wireless charging function
Machine；By taking the mobile phone with wireless charging function as an example, when no mobile phone is placed on charger, by the wireless charging device
Training in rotation detection state is arranged on, for detecting whether having mobile phone to be placed on above wireless charging device prepares charging, control unit connects
The induced signal of all wireless charging units is received, after mobile phone is placed on wireless charging device, the multiple wireless charging list
When member receives the signal of mobile phone, all induced signals are compared described control unit, will be wherein corresponding to peak signal
Wireless charging unit and power subsystem connect, mobile phone is charged.Wherein, the multiple is at least two.
Further, every first scheduled time, induced signal is taken turns in the multiple wireless charging unit collection one.I.e. every
First scheduled time, all wireless charging units carried out the monitoring of a mobile phone charging signals, it is preferred that described first is pre-
Fix time as 200ms.
Further, in charging process, the position of possible charging terminal may have been moved, that is, need other nothings
Line charhing unit charges to charging terminal, the charging effect that can be so optimal, therefore also includes step one：When wireless
After the path of charhing unit and power subsystem is connected, every the multiple wheel sense of wireless charging unit collection one of second scheduled time
Induction signal；Step 2：The corresponding induced signal of more the multiple wireless charging unit of described control unit, connects induced signal
The path of the most strong wireless charging unit and the power subsystem.It is preferred that, second scheduled time is 400ms.
Further, it is contemplated that more excellent makes control unit control also to wrap between the wireless charging unit and power subsystem
Switch is included, the switch is also connected with described control unit.It is preferred that, the switch is metal-oxide-semiconductor.；Specifically, the control is single
First to be connected between the wireless charging unit by IIC lines, IIC lines can optimize the sensing for reading each wireless charging unit
The intensity of signal.
Also referring to Fig. 2, the application also provides a kind of wireless charging device, including：
Multiple wireless charging units 100, for being charged to terminal, and detect terminal signaling；
Power subsystem 200, for providing terminal charge power supply for the multiple wireless charging unit 100；
Control unit 300, for receiving the induced signal of the multiple wireless charging unit 100, and carries out signal strength
Contrast, and then control the break-make between wireless charging unit 100 and the power subsystem 200；
Described control unit 300 is connected respectively at the multiple wireless charging unit 100 and power subsystem 200；It is described
Power subsystem 200 is also connected with the multiple wireless charging unit 100 respectively.Wherein, described control unit 300 with it is described
With IIC between wireless charging unit（Inter-Integrated Circuit, IC bus）Line is connected, and by described
Transmit induced signal in IIC Xi'an.Wherein the multiple is at least two.
Further, switch 400, the switch 400 are also included between the wireless charging unit and the power subsystem
Also it is connected with described control unit.It is preferred that, the switch 400 is metal-oxide-semiconductor, described control unit 300 and the wireless charging
Connected between unit 100 by IIC lines.
Below using the wireless charging device with two wireless charging units and the mobile phone with wireless charging function as
Example, provides method and apparatus with reference to the application and illustrates：
When not described mobile phone is placed on the wireless charging device, control unit passes through IIC orders every 200ms
Receive once the induced signal of two wireless charging units；It is described when there is the mobile phone to be placed on wireless charging device
Wireless charging unit detects mobile phone signal, and the induced signal that described control unit reads two charhing units is compared
It is right, the strong wireless charging unit of signal is connected with power subsystem, the charging to mobile phone is realized；In charging process, every
400ms control units receive the mobile phone signal that once two wireless charging units are detected, and are compared, and remain wherein
The strong wireless charging unit of induced signal is connected with power subsystem.
It is understood that for those of ordinary skills, can be with technique according to the invention scheme and its hair
Bright design is subject to equivalent substitution or change, and all these changes or replacement should all belong to the guarantor of appended claims of the invention
Protect scope.
Claims (8)
1. a kind of wireless charging control method, it is characterised in that wireless charging device includes multiple wireless charging units, including step
Suddenly：
A：The wireless charging unit is arranged on training in rotation detection state, and the multiple wireless charging unit gathers corresponding induction zone
Induced signal, induced signal is transferred to control unit；
B：The corresponding induced signal of more the multiple wireless charging unit of described control unit；
C：Connect the path of the wireless charging unit and power subsystem corresponding to most strong induced signal；
D：After the path of wireless charging unit and power subsystem is connected, every second scheduled time the multiple wireless charging list
Induced signal is taken turns in member collection one；
E：The corresponding induced signal of more the multiple wireless charging unit of described control unit, connects induced signal most strong institute
State the path of wireless charging unit and the power subsystem；The training in rotation is detected as：Every first scheduled time the multiple nothing
Induced signal is taken turns in line charhing unit collection one.
2. wireless charging control method according to claim 1, it is characterised in that first scheduled time is 200ms.
3. wireless charging control method according to claim 1, it is characterised in that second scheduled time is 400ms.
4. wireless charging control method according to claim 1, it is characterised in that the wireless charging unit and the electricity
Also include switch between source unit, the switch is also connected with described control unit.
5. wireless charging control method according to claim 4, it is characterised in that the switch is metal-oxide-semiconductor；The control
Connected between unit and the wireless charging unit by IIC lines.
6. a kind of wireless charging device of the wireless charging control method described in use claim 1, it is characterised in that including：
Multiple wireless charging units, for being charged to terminal, and detect terminal signaling；
Power subsystem, for providing terminal charge power supply for the multiple wireless charging unit；
Control unit, for receiving the induced signal of the multiple wireless charging unit, and carries out the contrast of signal strength, and then
Control the break-make between the wireless charging unit and the power subsystem；
Described control unit is connected respectively at the multiple wireless charging unit and power subsystem；The power subsystem is also distinguished
It is connected with the multiple wireless charging unit.
7. wireless charging device according to claim 6, it is characterised in that the wireless charging unit and the power supply list
Also include switch between member, the switch is also connected with described control unit.
8. wireless charging device according to claim 7, it is characterised in that the switch is metal-oxide-semiconductor；Described control unit
It is connected between the wireless charging unit by IIC lines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410846103.XA CN104505896B (en) | 2014-12-31 | 2014-12-31 | A kind of wireless charging control method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410846103.XA CN104505896B (en) | 2014-12-31 | 2014-12-31 | A kind of wireless charging control method and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104505896A CN104505896A (en) | 2015-04-08 |
| CN104505896B true CN104505896B (en) | 2017-10-31 |
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| CN201410846103.XA Active CN104505896B (en) | 2014-12-31 | 2014-12-31 | A kind of wireless charging control method and device |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105024436A (en) * | 2015-08-17 | 2015-11-04 | 苏州宝润电子科技有限公司 | Double detection of wireless charging system |
| KR20170054708A (en) * | 2015-11-10 | 2017-05-18 | 엘지이노텍 주식회사 | Multi-Coil Wireless Charging Method and Apparatus and System therefor |
| CN109193838A (en) * | 2018-09-20 | 2019-01-11 | 深圳市鑫研创科技有限公司 | A kind of double charging circuits of wireless charging and the more charging circuits of wireless charging |
| CN111030201A (en) * | 2018-10-10 | 2020-04-17 | Oppo广东移动通信有限公司 | Wireless charging device, method, storage medium and electronic equipment |
| CN113492705B (en) * | 2021-07-14 | 2023-01-10 | 福建星云电子股份有限公司 | Noninductive charging method for charging pile |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8183827B2 (en) * | 2003-01-28 | 2012-05-22 | Hewlett-Packard Development Company, L.P. | Adaptive charger system and method |
| JP5188211B2 (en) * | 2008-03-07 | 2013-04-24 | キヤノン株式会社 | Power supply apparatus and power supply method |
| CN102130514A (en) * | 2011-03-30 | 2011-07-20 | 上海北京大学微电子研究院 | Wireless power supply device of diagnosis and treatment system |
| CN103259297B (en) * | 2012-02-17 | 2017-03-01 | 联想(北京)有限公司 | Wireless charging control method and wireless charging device |
| CN203166636U (en) * | 2013-03-08 | 2013-08-28 | 惠州志顺电子实业有限公司 | Wireless charging system and wireless electric power emission device |
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