The content of the invention
The technical problems to be solved by the invention are：The system that a kind of NFC and wireless charging common antenna are provided, it can reduceThe problem of by NFC antenna and Wireless charging coil and depositing the electromagnetic interference problem brought and structure space deficiency, while save and setCost is counted, advantage is provided for product complete machine cost, lifts the competitiveness of product.
In addition, a kind of method that the present invention also provides NFC and wireless charging common antenna, can be reduced by NFC antenna and nothingMicro USB electric coil and the problem of deposit the electromagnetic interference problem brought and structure space deficiency, while design cost is saved, it is productComplete machine cost provides advantage, lifts the competitiveness of product.
In order to solve the above technical problems, the present invention adopts the following technical scheme that：
A kind of NFC and wireless charging common antenna system, the system include：It is CPU control modules, NFC chip, wirelessCharging chip, duplexer, antenna；
The CPU control modules connect NFC chip, wireless charging chip, duplexer respectively, and duplexer connects respectivelyNFC chip, wireless charging chip, antenna；
NFC communication shares an antenna with wireless charging, and NFC communication and wireless charging are carried out using a duplexerBetween switching；CPU control modules carry out communication interaction respectively at NFC chip and wireless charging chip, while control antenna to openThe guiding that concern is changed；
When CPU control modules recognize NFC communication, CPU control module controlling switches are switched to NFC chip, carry out NFCCommunication, disconnection of wireless charging；When recognizing wireless charging, CPU control module controlling switches are switched to wireless charging chip, enterRow wireless charging, disconnect NFC communication；
The poll of CPU control modules accesses to know：CPU control modules are known first controlling switch and beaten to NFC chip,NFC recognition detections are carried out, if it is determined that NFC device, then carry out NFC communication, detection cut-off, successfully identify NFC device；IfJudgement is not NFC device, then further opens wireless charging chip detection, and switch is beaten to wireless charging chip, if it is determined thatWireless charging device, then wireless charging is carried out, detection cut-off, successfully identifies wireless charging device；If it is determined that it is not wireless chargingElectric equipment, then detection terminate, illustrate neither NFC device again be not wireless device；
Or the poll of CPU control modules accesses to know and is otherwise：CPU control modules are known first controlling switch and beaten to nothingMicro USB electrical chip, wireless charging recognition detection is carried out, if it is determined that wireless charging device, then carry out wireless charging, detection is cutOnly, wireless charging device is successfully identified；If it is determined that not being wireless charging device, then NFC chip detection, switch are further openedBeat to NFC chip, if it is determined that NFC communication equipment, then carry out NFC communication, detection cut-off, successfully identify NFC communication equipment；If it is determined that be not NFC communication equipment, then detection terminates, and illustrate neither wireless charging device is not again NFC communication equipment.
A kind of NFC and wireless charging common antenna system, the system include：It is CPU control modules, NFC chip, wirelessCharging chip, duplexer, antenna；
The CPU control modules connect NFC chip, wireless charging chip, duplexer respectively, and duplexer connects respectivelyNFC chip, wireless charging chip, antenna；
NFC communication shares an antenna with wireless charging, and NFC communication and wireless charging are carried out using a duplexerBetween switching；CPU control modules carry out communication interaction respectively at NFC chip and wireless charging chip, while control antenna to openThe guiding that concern is changed.
As a preferred embodiment of the present invention, when CPU control modules recognize NFC communication, the control of CPU control modulesSwitch is switched to NFC chip, carries out NFC communication, disconnection of wireless charging；When recognizing wireless charging, the control of CPU control modulesSwitch is switched to wireless charging chip, carries out wireless charging, disconnects NFC communication.
As a preferred embodiment of the present invention, the poll of CPU control modules, which accesses to know, is otherwise：CPU controls mouldBlock is known first controlling switch and beaten to NFC chip, carries out NFC recognition detections, if it is determined that NFC device, then carry out NFC communication, inspectionCut-off is surveyed, successfully identifies NFC device；If it is determined that not being NFC device, then wireless charging chip detection, switch are further openedBeat to wireless charging chip, if it is determined that wireless charging device, then carry out wireless charging, detection cut-off, successfully identification is wirelessCharging equipment；If it is determined that be not wireless charging device, then detection terminates, and illustrate neither NFC device is not again wireless device.
As a preferred embodiment of the present invention, the poll of CPU control modules, which accesses to know, is otherwise：CPU controls mouldBlock is known first controlling switch and beaten to wireless charging chip, carries out wireless charging recognition detection, if it is determined that wireless charging device, thenWireless charging is carried out, detection cut-off, successfully identifies wireless charging device；If it is determined that it is not wireless charging device, then furtherNFC chip detection is opened, switch is beaten to NFC chip, if it is determined that NFC communication equipment, then carry out NFC communication, detection ends,Success identifies NFC communication equipment；If it is determined that be not NFC communication equipment, then detection terminates, and illustrates neither wireless charging deviceIt is not again NFC communication equipment.
A kind of method that NFC and wireless charging common antenna are realized using said system, methods described are included：
NFC communication shares an antenna with wireless charging, and NFC communication and wireless charging are carried out using a duplexerBetween switching；
CPU control modules carry out communication interaction respectively at NFC chip and wireless charging chip, while control duplexer to cutThe guiding changed；
When CPU control modules recognize NFC communication, CPU control module controlling switches are switched to NFC chip, carry out NFCCommunication, disconnection of wireless charging；When recognizing wireless charging, CPU control module controlling switches are switched to wireless charging chip, enterRow wireless charging, disconnect NFC communication；
The poll of CPU control modules accesses to know：CPU control modules are known first controlling switch and beaten to NFC chip,NFC recognition detections are carried out, if it is determined that NFC device, then carry out NFC communication, detection cut-off, successfully identify NFC device；IfJudgement is not NFC device, then further opens wireless charging chip detection, and switch is beaten to wireless charging chip, if it is determined thatWireless charging device, then wireless charging is carried out, detection cut-off, successfully identifies wireless charging device；If it is determined that it is not wireless chargingElectric equipment, then detection terminate, illustrate neither NFC device again be not wireless device；
Or the poll of CPU control modules accesses to know and is otherwise：CPU control modules are known first controlling switch and beaten to nothingMicro USB electrical chip, wireless charging recognition detection is carried out, if it is determined that wireless charging device, then carry out wireless charging, detection is cutOnly, wireless charging device is successfully identified；If it is determined that not being wireless charging device, then NFC chip detection, switch are further openedBeat to NFC chip, if it is determined that NFC communication equipment, then carry out NFC communication, detection cut-off, successfully identify NFC communication equipment；If it is determined that be not NFC communication equipment, then detection terminates, and illustrate neither wireless charging device is not again NFC communication equipment.
A kind of method that NFC and wireless charging common antenna are realized using said system, methods described are included：
NFC communication shares an antenna with wireless charging, and NFC communication and wireless charging are carried out using a duplexerBetween switching；CPU control modules carry out communication interaction respectively at NFC chip and wireless charging chip, while control antenna to openThe guiding that concern is changed.
As a preferred embodiment of the present invention, when CPU control modules recognize NFC communication, the control of CPU control modulesSwitch is switched to NFC chip, carries out NFC communication, disconnection of wireless charging；When recognizing wireless charging, the control of CPU control modulesSwitch is switched to wireless charging chip, carries out wireless charging, disconnects NFC communication.
As a preferred embodiment of the present invention, the poll of CPU control modules, which accesses to know, is otherwise：CPU controls mouldBlock is known first controlling switch and beaten to NFC chip, carries out NFC recognition detections, if it is determined that NFC device, then carry out NFC communication, inspectionCut-off is surveyed, successfully identifies NFC device；If it is determined that not being NFC device, then wireless charging chip detection, switch are further openedBeat to wireless charging chip, if it is determined that wireless charging device, then carry out wireless charging, detection cut-off, successfully identification is wirelessCharging equipment；If it is determined that be not wireless charging device, then detection terminates, and illustrate neither NFC device is not again wireless device.
As a preferred embodiment of the present invention, the poll of CPU control modules, which accesses to know, is otherwise：CPU controls mouldBlock is known first controlling switch and beaten to wireless charging chip, carries out wireless charging recognition detection, if it is determined that wireless charging device, thenWireless charging is carried out, detection cut-off, successfully identifies wireless charging device；If it is determined that it is not wireless charging device, then furtherNFC chip detection is opened, switch is beaten to NFC chip, if it is determined that NFC communication equipment, then carry out NFC communication, detection ends,Success identifies NFC communication equipment；If it is determined that be not NFC communication equipment, then detection terminates, and illustrates neither wireless charging deviceIt is not again NFC communication equipment.
The present invention use poll testing mechanism, can user using when automatically go identification be NFC communication orWireless charging, controlled manually without user；
For the probability for improving the degree of accuracy of identification, lifting correctly identifies, above training in rotation detection can repeat batch (-type) progress,Intermittent time is unlimited, depending on the actual conditions that can be designed according to detailed programs, specific product, meets power consumption requirements；
For the performance of antenna in itself, it is desirable to both meet NFC communication, wireless charging can be met again, for antennaOr the shape of coil, size, area are unlimited, meet design requirement just；
For duplexer, switching channels number is unlimited, can be two-way switch or variable connector, can be according to toolDepending on body project, specific product design, while meet the electrical characteristic requirement of NFC communication and wireless charging；
The beneficial effects of the present invention are：The system of NFC proposed by the present invention and wireless charging common antenna, can reduce byNFC antenna and Wireless charging coil and the problem of deposit the electromagnetic interference problem brought and structure space deficiency, while save designCost, advantage is provided for product complete machine cost, lifts the competitiveness of product.
The present invention provides a kind of method that coil by NFC antenna and wireless charging combines, and NFC antenna had both been used asNFC communication itself, it is used for Wireless charging coil again；From the angle of Consumer's Experience, when typically charging, NFC will not be carried out and led toLetter, while will not also go to carry out wireless charging when using NFC communication；So by NFC antenna and Wireless charging coil knotIt is feasible to have unified；Moreover, if NFC antenna is multiplexed into Wireless charging coil in design, a wireless charging can be also savedThe cost of electric coil, so as to save cost for the design of whole end product.
Embodiment one
Referring to Fig. 1, present invention is disclosed a kind of NFC and wireless charging common antenna system, the system includes：CPU control modules, NFC chip, wireless charging chip, duplexer, antenna.The CPU control modules connect NFC cores respectivelyPiece, wireless charging chip, duplexer, duplexer connect NFC chip, wireless charging chip, antenna respectively.
NFC communication shares an antenna with wireless charging, and NFC communication and wireless charging are carried out using a duplexerBetween switching；CPU control modules carry out communication interaction respectively at NFC chip and wireless charging chip, while control antenna to openThe guiding that concern is changed.
When CPU control modules, which recognize, needs NFC communication, CPU control module controlling switches are switched to NFC chip, enterRow NFC communication, disconnection of wireless charging；When recognize need wireless charging when, CPU control module controlling switches are switched to wireless chargingElectrical chip, wireless charging is carried out, disconnect NFC communication.
Poll accesses the mechanism one of identification：As shown in Fig. 2 CPU elder generations controlling switch is beaten to NFC chip, NFC identification inspections are carried outSurvey, if it is determined that NFC device, then carry out NFC communication, detection cut-off, successfully identify NFC device；If it is determined that it is not that NFC is setIt is standby, then wireless charging chip detection is further opened, switch is beaten to wireless charging chip, if it is determined that wireless charging device,Wireless charging is then carried out, detection cut-off, successfully identifies wireless charging device；If it is determined that not being wireless charging device, then detectTerminate, illustrate neither NFC device again be not wireless device.
Poll accesses the mechanism two of identification：As shown in figure 3, CPU elder generations controlling switch is beaten to wireless charging chip, carry out wirelessCharge recognition detection, if it is determined that wireless charging device, then carry out wireless charging, detection cut-off, successfully identify wireless chargingEquipment；If it is determined that not being wireless charging device, then NFC chip detection is further opened, switch is beaten to NFC chip, if sentencedBreak as NFC communication equipment, then carry out NFC communication, detection cut-off, successfully identify NFC communication equipment；If it is determined that it is not that NFC leads toBelieve equipment, then detection terminate, illustrate neither wireless charging device again be not NFC communication equipment.
The present invention also discloses a kind of method that NFC and wireless charging common antenna are realized using said system, methods describedIncluding：NFC communication and wireless charging share an antenna, using a duplexer come carry out NFC communication and wireless charging itBetween switching；CPU control modules carry out communication interaction respectively at NFC chip and wireless charging chip, while control duplexerThe guiding of switching.
When CPU control modules, which recognize, needs NFC communication, CPU control module controlling switches are switched to NFC chip, enterRow NFC communication, disconnection of wireless charging；When recognize need wireless charging when, CPU control module controlling switches are switched to wireless chargingElectrical chip, wireless charging is carried out, disconnect NFC communication.
The poll of CPU control modules accesses to know：CPU control modules are known first controlling switch and beaten to NFC chip,NFC recognition detections are carried out, if it is determined that NFC device, then carry out NFC communication, detection cut-off, successfully identify NFC device；IfJudgement is not NFC device, then further opens wireless charging chip detection, and switch is beaten to wireless charging chip, if it is determined thatWireless charging device, then wireless charging is carried out, detection cut-off, successfully identifies wireless charging device；If it is determined that it is not wireless chargingElectric equipment, then detection terminate, illustrate neither NFC device again be not wireless device.
Or the poll of CPU control modules accesses to know and is otherwise：CPU control modules are known first controlling switch and beaten to nothingMicro USB electrical chip, wireless charging recognition detection is carried out, if it is determined that wireless charging device, then carry out wireless charging, detection is cutOnly, wireless charging device is successfully identified；If it is determined that not being wireless charging device, then NFC chip detection, switch are further openedBeat to NFC chip, if it is determined that NFC communication equipment, then carry out NFC communication, detection cut-off, successfully identify NFC communication equipment；If it is determined that be not NFC communication equipment, then detection terminates, and illustrate neither wireless charging device is not again NFC communication equipment.
Embodiment two
A kind of NFC and wireless charging common antenna system, the system include：It is CPU control modules, NFC chip, wirelessCharging chip, duplexer, antenna；The CPU control modules connect NFC chip, wireless charging chip, duplexer respectively,Duplexer connects NFC chip, wireless charging chip, antenna respectively.
NFC communication shares an antenna with wireless charging, and NFC communication and wireless charging are carried out using a duplexerBetween switching；CPU control modules carry out communication interaction respectively at NFC chip and wireless charging chip, while control antenna to openThe guiding that concern is changed.
When CPU control modules recognize NFC communication, CPU control module controlling switches are switched to NFC chip, carry out NFCCommunication, disconnection of wireless charging；When recognizing wireless charging, CPU control module controlling switches are switched to wireless charging chip, enterRow wireless charging, disconnect NFC communication.
The present invention discloses a kind of method that NFC and wireless charging common antenna are realized using said system, methods described bagInclude：NFC communication shares an antenna with wireless charging, is carried out using a duplexer between NFC communication and wireless chargingSwitching；CPU control modules carry out communication interaction respectively at NFC chip and wireless charging chip, while control duplexer to cutThe guiding changed.
When CPU control modules recognize NFC communication, CPU control module controlling switches are switched to NFC chip, carry out NFCCommunication, disconnection of wireless charging；When recognizing wireless charging, CPU control module controlling switches are switched to wireless charging chip, enterRow wireless charging, disconnect NFC communication.
In summary, NFC proposed by the present invention and wireless charging common antenna system and method, can be reduced by NFC daysLine and Wireless charging coil and the problem of deposit the electromagnetic interference problem brought and structure space deficiency, while design cost is saved,Advantage is provided for product complete machine cost, lifts the competitiveness of product.
Here description of the invention and application are illustrative, are not wishing to limit the scope of the invention to above-described embodimentIn.The deformation and change of embodiments disclosed herein are possible, real for those skilled in the artThe replacement and equivalent various parts for applying example are known.It should be appreciated by the person skilled in the art that the present invention is not being departed fromSpirit or essential characteristics in the case of, the present invention can in other forms, structure, arrangement, ratio, and with other components,Material and part are realized.In the case where not departing from scope and spirit of the present invention, embodiments disclosed herein can be enteredThe other deformations of row and change.