CN112637415B - Charging control method and device, mobile terminal and storage medium - Google Patents

Charging control method and device, mobile terminal and storage medium Download PDF

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Publication number
CN112637415B
CN112637415B CN201910894482.2A CN201910894482A CN112637415B CN 112637415 B CN112637415 B CN 112637415B CN 201910894482 A CN201910894482 A CN 201910894482A CN 112637415 B CN112637415 B CN 112637415B
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signal
nfc
module
state
wireless charging
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CN112637415A (en
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吴凯棋
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Beijing Xiaomi Mobile Software Co Ltd
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Beijing Xiaomi Mobile Software Co Ltd
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/309—Measuring or estimating channel quality parameters
    • H04B17/318—Received signal strength
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication

Abstract

The present disclosure relates to a charging control method and apparatus, a mobile terminal, and a storage medium, wherein the method is applied to a mobile terminal including a Near Field Communication (NFC) module, and the NFC module is used for receiving and transmitting NFC signals; the method comprises the following steps: determining whether the mobile terminal is in a wireless charging mode; responding to the wireless charging mode, and if the signal intensity of the NFC signal is larger than a preset value, switching the NFC module from a first state to a second state; the interference intensity of the NFC module in the first state on wireless charging is greater than the interference intensity of the NFC module in the second state on wireless charging. By the method, the stability of wireless charging is improved, and the user experience is improved.

Description

Charging control method and device, mobile terminal and storage medium
Technical Field
The present disclosure relates to the field of wireless charging, and in particular, to a charging control method and apparatus, a mobile terminal, and a storage medium.
Background
Wireless charging technologies are gradually maturing, including magnetic induction technologies represented by Wireless Power Consortium (WPC) and magnetic resonance technologies represented by Wireless Power Consortium (A4 WP), where advantages of Wireless charging methods based on magnetic resonance technologies are obvious, such as charging distance is better than that of WPC, and the Wireless charging methods do not need to be attached together closely, and do not heat metal in a charging area.
At present, more and more wireless charging products based on magnetic induction technology and magnetic resonance technology are especially applied to the field of intelligent wearable equipment and smart phones.
Disclosure of Invention
The disclosure provides a charging control method and device, a mobile terminal and a storage medium.
According to a first aspect of the embodiments of the present disclosure, a charging control method is provided, which is applied to a mobile terminal including an NFC module for near field communication, where the NFC module is configured to receive and transmit an NFC signal; the method comprises the following steps:
determining whether the mobile terminal is in a wireless charging mode;
responding to the wireless charging mode, and if the signal intensity of the NFC signal is larger than a preset value, switching the NFC module from a first state to a second state; the interference intensity of the NFC module in the first state on wireless charging is greater than the interference intensity of the NFC module in the second state on wireless charging.
In some embodiments, the method further comprises:
receiving a notice sent by a wireless charging sender when the signal intensity of the NFC signal is greater than the preset value;
if the NFC signal exists and the signal intensity is greater than the preset value, the NFC module is switched from the first state to the second state, and the method comprises the following steps:
and switching the NFC module from the first state to the second state according to the notification.
In some embodiments, the method further comprises:
responding to the wireless charging mode, and detecting the NFC signal by utilizing a wireless signal demodulation module of the mobile terminal;
determining whether the signal strength of the NFC signal is greater than the preset value.
In some embodiments, switching the NFC module from the first state to the second state comprises at least one of:
the NFC module is switched from an open state to a closed state;
the signal transmission frequency of the NFC module is switched from a first frequency to a second frequency; wherein the second frequency is lower than the first frequency;
the signal transmission intensity of the NFC module is switched from the first intensity to the second intensity; wherein the second intensity is lower than the first intensity.
In some embodiments, the method further comprises:
and if the NFC signal exists and the signal intensity is less than or equal to the preset value, maintaining the NFC module in the first state.
In some embodiments, the method further comprises:
generating a preset interrupt in response to the fact that the signal intensity of the NFC signal is larger than the preset value according to the wireless signal demodulation module, and sending the preset interrupt to a processing module of the mobile terminal;
if the NFC signal exists and the signal intensity is greater than the preset value, the NFC module is switched from the first state to the second state, and the method comprises the following steps:
and the processing module switches the NFC module from the first state to the second state according to the preset interrupt.
In some embodiments, the detecting the NFC signal by using the wireless signal demodulation module of the mobile terminal includes:
carrying out wireless signal filtering by utilizing the wireless charging signal and the public demodulation module for NFC signal demodulation to obtain a filtering signal;
and determining whether the detected wireless signal contains the NFC signal or not according to the filtering signal.
According to a second aspect of the embodiments of the present disclosure, there is provided a charging control device applied to a mobile terminal including an NFC module for NFC communication, where the NFC module is configured to receive and transmit an NFC signal; the device comprises:
a first determining module configured to determine whether the mobile terminal is in a wireless charging mode;
the switching module is configured to respond to the wireless charging mode, and switch the NFC module from a first state to a second state if the signal intensity of an NFC signal is greater than a preset value; the interference intensity of the NFC module in the first state on wireless charging is greater than the interference intensity of the NFC module in the second state on wireless charging.
In some embodiments, the apparatus further comprises:
the receiving module is configured to receive a notification sent by the wireless charging sender when the signal intensity of the NFC signal is greater than the preset value;
the switching module is specifically configured to switch the NFC module from a first state to a second state according to the notification.
In some embodiments, the apparatus further comprises:
the detection module is configured to respond to the wireless charging mode and detect the NFC signal by using a wireless signal demodulation module of the mobile terminal;
a second determining module configured to determine whether the signal strength of the NFC signal is greater than the preset value.
In some embodiments, switching the NFC module from the first state to the second state comprises at least one of:
the NFC module is switched from an open state to a closed state;
the signal transmission frequency of the NFC module is switched from a first frequency to a second frequency; wherein the second frequency is lower than the first frequency;
the signal transmission intensity of the NFC module is switched from the first intensity to the second intensity; wherein the second intensity is lower than the first intensity.
In some embodiments, the apparatus further comprises:
and the maintaining module is configured to maintain the NFC module in the first state if the NFC signal exists and the signal intensity is less than or equal to the preset value.
In some embodiments, the apparatus further comprises an interrupt module and a processing module; wherein the content of the first and second substances,
the interrupt module is configured to generate a preset interrupt in response to the fact that the signal intensity of the NFC signal is greater than the preset value according to the determination of the wireless signal demodulation module, and send the preset interrupt to the processing module;
the processing module is configured to switch the NFC module from the first state to the second state according to the preset interrupt.
In some embodiments, the wireless signal demodulation module comprises a common demodulation module capable of demodulating the wireless charging signal and the NFC signal,
the detection module is configured to filter a wireless signal by using the common demodulation module to obtain a filtered signal; and determining whether the detected wireless signal contains the NFC signal or not according to the filtering signal.
According to a third aspect of the embodiments of the present disclosure, there is provided a mobile terminal including:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to perform the charging control method as described in the first aspect above.
According to a fourth aspect of embodiments of the present disclosure, there is provided a storage medium including:
the instructions in the storage medium, when executed by a processor of a mobile terminal, enable the mobile terminal to perform the charging control method as described in the first aspect above.
The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects:
in the embodiment of the disclosure, when the mobile terminal is in the wireless charging mode, whether the signal strength of the NFC signal is greater than a preset value is determined, and the NFC module is switched from the first state to the second state with relatively low interference strength to wireless charging only when the signal strength is greater than the preset value. The state of the NFC module is changed in the mode of setting the signal intensity threshold, so that on one hand, the stability of wireless charging is improved; on the other hand, the phenomenon that the NFC communication quality is poor on the whole when the NFC maintains communication due to mutual interference of the wireless charging signal and the NFC signal is reduced through state adjustment of the NFC.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.
Fig. 1 illustrates a charging control method according to an embodiment of the present disclosure.
Fig. 2 is an exemplary diagram of a hardware architecture of a wireless charging system based on magnetic induction technology.
Fig. 3 is a schematic diagram of a waveform filtered by a wireless charging demodulation module.
Fig. 4 is a first schematic diagram illustrating a configuration of a demodulation module for an NFC signal in an embodiment of the present disclosure.
Fig. 5 is a schematic diagram illustrating a configuration of a demodulation module for an NFC signal in the embodiment of the present disclosure.
Fig. 6 is a third schematic diagram illustrating a configuration of a demodulation module for an NFC signal in the embodiment of the present disclosure.
Fig. 7 is a flowchart illustrating a charging control method applied to a mobile phone according to an embodiment of the disclosure.
Fig. 8 is a flowchart illustrating a charging control method applied to a mobile phone in an embodiment of the disclosure.
Fig. 9 is a diagram illustrating a charge control device according to an exemplary embodiment.
FIG. 10 is a block diagram illustrating a mobile device according to an example embodiment.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.
Fig. 1 is a charging control method according to an embodiment of the disclosure, which is applied to a mobile terminal including a Near Field Communication (NFC) module, where the NFC module is used for transceiving an NFC signal. This NFC module is including the coil that can detect the NFC signal at least, can receive the NFC signal that NFC equipment sent and send the NFC signal. The NFC signal is a wireless signal with a frequency of 13.56 MHZ. When a coil of a wireless charging transmitter based on a magnetic induction technology induces a signal, the working frequency of the coil is 1-50 KHZ, and the coil is interfered by an NFC signal with higher frequency; and the wireless charging transmitter based on the magnetic resonance technology has an operating frequency of 6.78MHZ, and is easily coupled with the NFC signal, so that the wireless charging transmitter and the NFC signal interfere with each other.
As shown in fig. 1, the charge control method includes the steps of:
and S11, determining whether the mobile terminal is in a wireless charging mode.
In an embodiment of the present disclosure, a mobile terminal supports a wireless charging function and an NFC function. The mobile terminal includes: a mobile phone, a tablet computer, or a wearable device, etc., and the embodiments of the present disclosure are not limited thereto.
In an embodiment of the present disclosure, taking a magnetic induction technology as an example, fig. 2 is an exemplary diagram of a hardware architecture of a wireless charging system based on a magnetic induction technology, as shown in fig. 2, the wireless charging system includes a wireless charging transmitter and a wireless charging receiver, and a mobile terminal provided in an embodiment of the present disclosure at least includes the wireless charging receiver. The wireless charging transmitter transmits energy through a primary alternating current coil on the driving power conversion unit, and the wireless charging receiver receives energy through a secondary coil on the power recovery unit in an induction mode, so that energy is transferred from the transmitting end to the receiving end. After the wireless charging receiver receives energy, the identity identification information and the energy requirement of the equipment are acquired based on a charging control center in the wireless charging receiver, digital information is obtained after alternating current load modulation, and the digital information is sent to the wireless charging transmitter through the communication unit to complete load feedback. After the communication unit in the wireless charging transmitter receives the digital information, various information in the alternating current load is demodulated based on a charging control center in the wireless charging transmitter, a wireless charging communication signal is obtained, and the output power level of the wireless charging receiver is adjusted according to the requirement of the wireless charging receiver on energy.
In step S11 of the embodiment of the present disclosure, the mobile terminal determines whether it is in the wireless charging mode, including:
the mobile terminal and the wireless charging transmitter perform charging protocol handshaking;
and if the charging protocol handshake is successful, determining that the charging device is in the wireless charging mode.
Illustratively, the charging protocol may be a QI protocol based on magnetic induction technology or other proprietary wireless charging protocols developed by the manufacturer.
S12, responding to the wireless charging mode, and if the signal intensity of the NFC signal is larger than a preset value, switching the NFC module from the first state to the second state; the interference intensity of the NFC module in the first state on wireless charging is greater than the interference intensity of the NFC module in the second state on wireless charging.
In an embodiment, if the NFC signal exists and the signal strength of the NFC signal is less than or equal to the predetermined value, the NFC module is maintained in the first state.
In the embodiment of the present disclosure, the signal strength of the detected NFC signal is compared with a preset value, and different operations are performed according to the comparison result. When the signal strength of the NFC signal is greater than the preset value, the signal strength of the current NFC signal is stronger, the signal strength radiation range of the stronger NFC signal is wide, the same frequency and adjacent frequency interference is easily generated on the wireless charging signal, so that the interference on the wireless charging is reduced, the state of the NFC module is switched from the first state to the second state with weakened interference strength on the wireless charging, the interference of the NFC module on the wireless charging signal is reduced when the NFC module is in the first state, and therefore the reliability of the wireless charging is improved.
In other embodiments, when the signal strength of the NFC signal is less than or equal to the predetermined value, the NFC module may be maintained in the first state, so that the user may continue to use the NFC function at the same time. Specifically, for example, if it is detected that the signal intensity of the NFC signal is less than or equal to the preset value, the current cycle of the charging control method is ended, and after waiting for the predetermined time period, the next cycle of the charging control method is entered.
In one embodiment, the NFC module switches from the first state to the second state, including at least one of:
the NFC module is switched from an open state to a closed state;
the signal transmission frequency of the NFC module is switched from a first frequency to a second frequency; wherein the second frequency is lower than the first frequency;
the signal transmission intensity of the NFC module is switched from the first intensity to the second intensity; wherein the second intensity is lower than the first intensity.
It should be noted that, in the embodiment of the present disclosure, when detecting that the display screen of the mobile terminal is on, the NFC module in the mobile terminal may work, and also, when detecting that the mobile terminal is in a power-on state, that is, when the display screen of the mobile terminal is on and off, the NFC module all works. Regarding the triggering manner of the NFC module, the embodiment of the present disclosure is not limited. It is to be understood that, in this embodiment, the NFC module switches from the on state to the off state. Under the open state, the NFC module can receive and dispatch signals, under the closed state, the NFC module can not receive and dispatch NFC signals. So, through closing the NFC module, can maximize reduce the interference of NFC signal to the wireless signal that charges, also reduced the wireless interference of charging to the NFC module simultaneously, reduced the damage probability of NFC module.
And the sending frequency of the NFC signal is reduced from the first frequency to the second frequency, so that the interaction frequency of the mobile terminal in the NFC signal is at least reduced, and the interference frequency to the wireless charging signal is reduced. The sending intensity of the NFC signal is reduced from the first intensity to the second intensity, and the signal intensity of the NFC signal is reduced, so that the radiation range of the NFC is reduced, on one hand, the energy of the NFC signal possibly radiated to the wireless charging signal transmission space is reduced, on the other hand, the area of the NFC signal possibly radiated to the wireless charging signal transmission space is reduced, and therefore the interference intensity of the wireless charging signal is reduced on the whole. Therefore, through the switching of the states, the interference frequency or the interference intensity of single interference is reduced, and the interference on the wireless charging signal is reduced as a whole.
Meanwhile, the NFC module is not directly closed, only when the interference strength of the NFC module to wireless charging is reduced, the NFC module in the mobile terminal can also normally communicate, NFC communication can be realized while wireless charging is achieved, and the requirement that a user uses NFC function communication while wireless charging is met.
In an embodiment, the mobile terminal may further reduce its wireless charging power or suspend the wireless charging process according to a preset communication importance degree, so as to meet a user's usage requirement or reduce hardware loss of the mobile terminal.
For example, when wireless charging and NFC communication can interfere with each other, if the importance level of communication is set based on the setting of the user in the mobile terminal, if the importance level of NFC communication is the first in the wireless charging process, then after the mobile terminal detects that the NFC module in the NFC module and the NFC module in another mobile terminal have completed the handshake protocol of NFC communication, the wireless charging process of the mobile terminal is suspended, so that the normal operation of NFC communication is ensured, and the use requirements of the user are met.
For another example, if the mobile terminal detects an application message for a certain application in the wireless charging process, such as a phone call incoming message of a mobile phone, the mobile terminal may suspend the wireless charging process according to a preset setting, so as to reduce hardware loss caused by too high heat when the phone application, the wireless charging application, and the NFC application operate together.
However, it should be noted that, in the embodiment of the present disclosure, before determining whether the signal strength of the NFC signal is greater than the preset value, the signal strength of the NFC signal needs to be detected. In the embodiment of the present disclosure, the signal strength detection of the NFC signal may be completed at the mobile terminal, or may be completed at the wireless charging transmitter, which is not limited in the embodiment of the present disclosure.
In one embodiment, when the signal strength detection of the NFC signal is completed at the wireless charging transmitter, the charging control method applied in the mobile terminal further includes:
the mobile terminal receives a notice sent by the wireless charging transmitter when the NFC intensity is larger than a preset value;
step S12 includes:
and the mobile terminal switches the NFC module from the first state to the second state according to the notification.
In this embodiment, the wireless charging transmitter detects the signal strength of the NFC signal through the wireless signal demodulation module in the wireless charging transmitter. The wireless signal demodulation module applied to the wireless charging transmitter can be an independent NFC demodulation module or a common demodulation module shared by a wireless charging signal and an NFC signal.
After the wireless signal demodulation module in the wireless charging transmitter demodulates and obtains the strength of the NFC signal, the detected signal strength may be compared with a preset value based on a charging control center provided in the wireless charging transmitter, and a communication packet including an NFC interference notification is added to the wireless charging signal, and the communication packet is notified to a Microcontroller Unit (MCU) in the mobile terminal in an in-band communication manner. The MCU in the mobile terminal is a main control center for managing all applications in the mobile terminal.
In another embodiment, when the signal strength detection of the NFC signal is completed in the mobile terminal, the charging control method applied in the mobile terminal further includes:
responding to the wireless charging mode, and detecting an NFC signal by using a wireless signal demodulation module of the mobile terminal;
the mobile terminal determines whether the signal strength of the NFC signal is greater than a preset value.
In the embodiment of the present disclosure, the wireless signal demodulation module applied to the mobile terminal may also be an independent NFC demodulation module, and when the mobile terminal is also used as a power source, that is, has a charging function of the wireless charging transmitter, the wireless signal demodulation module applied to the mobile terminal may also be a common demodulation module shared by the wireless charging signal and the NFC signal.
In one embodiment, when the wireless signal demodulation module is a separate NFC demodulation module, the wireless signal demodulation module includes a band pass filter or a low pass filter, and is designed based on an operating frequency range of the NFC signal, for example, the frequency range of the NFC signal includes 13.56 MHZ. The NFC signal can be demodulated through the wireless signal demodulation module, and the strength of the NFC signal is obtained.
However, in the related art, the wireless charging transmitter already includes a wireless charging demodulation module, which also includes a band-pass filter or a low-pass filter, and is designed based on at least an operating frequency range of the wireless charging signal, such as the frequency range including 2 KHZ. The wireless charging signal demodulation module retains the wireless charging signal and the NFC signal after filtering the wireless signal, and only the demodulator in the wireless charging signal demodulation module can demodulate the wireless charging signal. Fig. 3 is a schematic diagram of a waveform filtered by the wireless charging demodulation module, and as shown in fig. 3, the WPC communication waveform and the NFC communication waveform still exist after being filtered by the filter in the wireless charging demodulation module.
Therefore, in another embodiment, the NFC signal demodulation function can be simultaneously achieved by utilizing the characteristic that the NFC signal is still retained after filtering based on the existing wireless charging demodulation module in the wireless charging transmitter. Of course, the signal strength of the NFC signal may also be obtained by demodulation based on other common demodulation modules that can jointly demodulate the NFC signal and the wireless charging signal.
It should be noted that, in the embodiment of the present disclosure, in the common demodulation module that can demodulate the wireless charging signal and the NFC signal, the filter may be shared to filter and obtain the wireless charging signal and the NFC signal, but the demodulator is not shared, and the common demodulation module is independently provided with a demodulator that can demodulate the wireless charging signal and a demodulator that can demodulate the NFC signal.
In one embodiment, the detecting the NFC signal by using the wireless signal demodulation module of the mobile terminal includes:
the mobile terminal utilizes a public demodulation module for demodulating the wireless charging signal and the NFC signal to filter the wireless signal to obtain a filtering signal;
and determining whether the detected wireless signals contain NFC signals or not according to the filtering signals.
In this embodiment, as mentioned above, when the mobile terminal includes the common demodulation module capable of demodulating the wireless charging signal and the NFC signal, the filtered signal filtered by the common module may include the wireless charging signal and the NFC signal together. And when determining whether to contain the NFC signal, whether to contain the NFC signal may be determined according to the frequency of variation of the high and low levels by detecting the high and low levels of the filtered signal by the demodulator. For example, if the received signal includes both the wireless charging signal and the NFC signal, the filtered signal includes both a signal of a first frequency corresponding to the wireless charging signal and a signal of a second frequency corresponding to the NFC signal, and if it is determined that the filtered signal includes the signal of the second frequency, the signal received by the common demodulation module includes the signal of the second frequency.
In the embodiment of the disclosure, when the signal strength of the NFC signal is detected in the mobile terminal, the detected signal strength may be compared with a preset value in a charging control center in the mobile terminal, or compared in an NFC application specific Integrated Circuit (IC) in the mobile terminal, and a comparison result is sent to a main control MCU in the mobile terminal, and the MCU controls the NFC module to switch states. In addition, the NFC module can also be compared with a preset value in the MCU of the mobile terminal, and the MCU controls the NFC module to switch the state.
In one embodiment, in response to determining that the signal strength of the NFC signal is greater than the preset value according to the wireless signal demodulation module, generating a preset interrupt, and sending the preset interrupt to a processing module of the mobile terminal, step S12 includes:
and the processing module switches the NFC module from the first state to the second state according to the preset interrupt.
In this embodiment, the wireless signal demodulation module in the mobile terminal feeds back the signal strength of the NFC signal to the charging control center of the mobile terminal, and the charging control center of the mobile terminal generates the preset interrupt when determining that the signal strength is greater than the preset value, and sends the preset interrupt to the processing module, where the processing module is a main control MCU of the mobile terminal.
Fig. 4 is a schematic diagram illustrating a first configuration of a demodulation module for an NFC signal in an embodiment of the present disclosure, as shown in fig. 4, the wireless charging transmitting terminal and the wireless charging receiving terminal transmit energy through a coil, and when the wireless charging receiving terminal starts an NFC function, the NFC signal is coupled with the wireless charging signal, so as to generate interference. Therefore, the NFC signal can be demodulated by arranging the forward charging demodulation module or the NFC demodulation module 1 in the wireless charging sending end, and the strength of the NFC signal is obtained and fed back to the charging control center of the wireless charging sending end. In addition, an NFC demodulation module 2 or a reverse charging demodulation module can be arranged in the wireless charging receiving end to demodulate an NFC signal, the strength of the NFC signal is obtained, and the NFC signal is fed back to a charging control center of the wireless charging receiving end. The forward charging demodulation module in the wireless charging sending end and the reverse charging demodulation module in the wireless charging receiving end are common demodulation modules shared by the wireless charging signal and the NFC signal. The wireless charging transmitter is the wireless charging transmitter, and the wireless charging receiver is the mobile terminal.
Fig. 5 is a schematic diagram illustrating a configuration of a demodulation module for an NFC signal in an embodiment of the present disclosure, taking a wireless charging transmitting terminal and a wireless charging receiving terminal both having a wireless charging function and a mobile terminal having an NFC function as an example, as shown in fig. 5, the mobile terminal 1 and the mobile terminal 2 transfer energy through a coil, and when the NFC function is turned on in the mobile terminal 2, the NFC signal may be coupled with the wireless charging signal, so as to generate interference. Therefore, the NFC signal can be demodulated by setting the demodulation module 1 or the NFC demodulation module 1 in the mobile terminal 1, so as to obtain the strength of the NFC signal and feed the strength back to the charging control center of the mobile terminal 1; the mobile terminal 2 may also be provided with an NFC demodulation module 2 or a demodulation module 2 to demodulate an NFC signal, obtain the strength of the NFC signal, and feed the strength back to the charging control center of the mobile terminal 2. It should be noted that the demodulation module 1 disposed in the mobile terminal 1 and the demodulation module 2 disposed in the mobile terminal 2 have the same functions as the forward charging demodulation module or the reverse charging demodulation module in fig. 4.
Fig. 6 is a third schematic view illustrating a configuration of a demodulation module for an NFC signal in an embodiment of the present disclosure, as shown in fig. 6, on the basis of fig. 5, the mobile terminal 1 and the mobile terminal 2 both having a wireless charging function and an NFC communication function transfer energy through a coil, and when the NFC function is turned on in the mobile terminal 1 or the mobile terminal 2, the NFC signal is coupled with the wireless charging signal, so that interference is generated. Therefore, the strength of the NFC signal can be obtained by setting the demodulation module 1 or the NFC demodulation module 1 in the mobile terminal 1 to demodulate the NFC signal. In addition, the mobile terminal 2 may further be provided with an NFC demodulation module 2 or a demodulation module 2 to demodulate the NFC signal, so as to obtain the strength of the NFC signal. However, different from fig. 5, the strength of the NFC signal obtained after the NFC signal is demodulated by the demodulation module 1 or the NFC demodulation module 1 is fed back to the MCU or the NFC dedicated IC of the mobile terminal 1, and the strength of the NFC signal obtained after the NFC signal is demodulated by the NFC demodulation module 2 or the demodulation module 2 is fed back to the MCU or the NFC dedicated IC of the mobile terminal 2.
Based on the mobile terminal 1 and the mobile terminal 2 shown in fig. 5 and 6, which both have the wireless charging function and the NFC function, when performing wireless charging, taking the mobile terminal 2 as a wireless charging receiving end and the NFC module in the mobile terminal 2 as an open state as an example, if it is determined in the mobile terminal 1 that the signal intensity of the NFC signal is greater than a preset value, the mobile terminal 1 may inform the mobile terminal 2 of adjusting the state of the NFC module based on a bluetooth communication manner; if the signal intensity of the NFC signal is determined to be greater than the preset value in the mobile terminal 2, the mobile terminal 2 directly adjusts the state of the NFC module.
Of course, if the NFC modules in the mobile terminal 1 and the mobile terminal 2 are both in the on state, after any one of the terminals detects that the signal intensity of the NFC signal is greater than the preset value, the states of the NFC modules in the mobile terminal 1 and the mobile terminal 2 may also be adjusted.
For example, if the mobile terminal 2 is used as a wireless charging transmitter, if it is determined in the mobile terminal 2 that the signal strength of the NFC signal is greater than the preset value, the mobile terminal 2 directly sets its own NFC module to be in an off state.
It should be noted that, in the embodiment of the present disclosure, a module capable of demodulating at least an NFC signal may be disposed in any one of the wireless charging transmitter and the mobile terminal. The embodiment of the present disclosure is not limited to the module design mode for obtaining the NFC signal by demodulation, and whether the demodulated signal is sent to the charging control center or the master MCU or the NFC dedicated IC.
It can be understood that, in the embodiment of the present disclosure, when the mobile terminal is in the wireless charging mode, it is determined whether the signal strength of the NFC signal is greater than a preset value, and the NFC module is switched from the first state to the second state with relatively low interference strength with the wireless charging only when the signal strength is greater than the preset value. The state of the NFC module is changed in the mode of setting the signal intensity threshold, so that on one hand, the stability of wireless charging is improved; on the other hand, through the state adjustment of the NFC module, the phenomenon that the NFC communication quality is poor on the whole due to the fact that the NFC is maintained for communication caused by mutual interference of the wireless charging signal and the NFC signal is reduced.
Taking the mobile terminal as a mobile phone as an example, the mobile phone supports wireless charging and NFC communication functions, and a charging control center in the mobile phone detects the signal strength of an NFC signal and determines whether the signal strength is greater than a preset value. Fig. 7 is a first flowchart illustrating a charging control method applied to a mobile phone in an embodiment of the present disclosure, as shown in fig. 7, including the following steps:
and S21, the NFC demodulation module in the mobile phone demodulates and obtains the signal intensity of the NFC signal and informs the charging control center in the mobile phone.
In this embodiment, the signal strength of the NFC signal can be represented by a voltage value, for example, the signal strength of the NFC signal obtained by the NFC demodulation module is a mv.
S22, the charging control center in the mobile phone judges whether the signal intensity is larger than the preset value, if so, the step S23 is executed, and if not, the step S25 is executed.
In this embodiment, if the preset value is x mv, if a is larger than x, step S23 is executed, otherwise, step S25 is executed.
S23, the charging control center in the mobile phone sends a preset interrupt to the main control MCU of the mobile phone, and continues to execute the steps S24 to S25.
And S24, the master control MCU sets the NFC module to be in a closed state according to the preset interruption.
And S25, the main control MCU continuously controls the wireless charging module to execute the wireless charging process.
It should be noted that the wireless charging process continuously executed by the wireless charging module is a wireless charging process that is not interfered by the NFC signal.
Fig. 8 is a flowchart illustrating a charging control method applied to a mobile phone according to an embodiment of the present disclosure, in which a main control MCU in the mobile phone determines whether the signal strength is greater than a preset value. As shown in fig. 8, the method comprises the following steps:
and S31, the NFC demodulation module in the mobile phone demodulates and obtains the signal intensity of the NFC signal and informs the charging control center in the mobile phone.
In this embodiment, the signal strength of the NFC signal can be represented by a voltage value, for example, the signal strength of the NFC signal obtained by the NFC demodulation module is a mv.
And S32, feeding back the signal intensity to the main control MCU by the charging control center in the mobile phone.
S33, the main control MCU judges whether the signal intensity is larger than the preset value, if yes, the step S34 is executed, and if not, the step S35 is executed.
In this embodiment, if the preset value is x mv, if a is larger than x, step S33 is executed, otherwise, step S35 is executed.
S34, the MCU sets the NFC module to be in the off state, and executes the step S35.
And S35, the main control MCU continuously controls the wireless charging module to execute the wireless charging process.
It should be noted that the wireless charging process continuously executed by the wireless charging module is a wireless charging process that is not interfered by the NFC signal.
It can be understood that, in the embodiment of fig. 7 or 8, when the mobile phone is in the wireless charging mode, whether the signal strength of the NFC signal is greater than a preset value is determined, and the NFC module is set to be in the off state when the signal strength is greater than the preset value, so that on one hand, the stability of wireless charging is improved; on the other hand, the probability of damage to the NFC module is reduced.
Fig. 9 is a diagram illustrating a charge control device according to an exemplary embodiment. Referring to fig. 9, the charging control apparatus is applied to a mobile terminal including an NFC module for NFC, where the NFC module is configured to receive and transmit NFC signals; the method comprises the following steps:
a first determining module 101 configured to determine whether the mobile terminal is in a wireless charging mode;
the switching module 102 is configured to respond to the wireless charging mode, and switch the NFC module from a first state to a second state if the signal strength of the NFC signal is greater than a preset value; the interference intensity of the NFC module in the first state on wireless charging is greater than the interference intensity of the NFC module in the second state on wireless charging.
In some embodiments, switching the NFC module from the first state to the second state comprises at least one of:
the NFC module is switched from an open state to a closed state;
the signal transmission frequency of the NFC module is switched from a first frequency to a second frequency; wherein the second frequency is lower than the first frequency;
the signal transmission intensity of the NFC module is switched from the first intensity to the second intensity; wherein the second intensity is lower than the first intensity.
In some embodiments, the apparatus further comprises:
the receiving module 103 is configured to receive a notification sent by the wireless charging transmitter when the signal strength of the NFC signal is greater than the preset value;
the switching module 102 is specifically configured to switch the NFC module from the first state to the second state according to the notification.
In some embodiments, the apparatus further comprises:
a detection module 104 configured to detect the NFC signal by using a wireless signal demodulation module of the mobile terminal in response to the wireless charging mode;
a second determining module 105 configured to determine whether the signal strength of the NFC signal is greater than the preset value.
In some embodiments, the apparatus further comprises:
a maintaining module 106 configured to maintain the NFC module in the first state if the NFC signal exists and the signal strength is less than or equal to the preset value.
In some embodiments, the apparatus further comprises an interrupt module 107 and a processing module 108; wherein the content of the first and second substances,
the interrupt module 107 is configured to generate a preset interrupt in response to the wireless signal demodulation module determining that the signal strength of the NFC signal is greater than the preset value, and send the preset interrupt to the processing module 108;
the processing module 108 is configured to switch the NFC module from the first state to the second state according to the preset interrupt.
In some embodiments, the wireless signal demodulation module comprises a common demodulation module capable of demodulating the wireless charging signal and the NFC signal,
the detection module 104 is configured to perform wireless signal filtering to obtain a filtered signal by using the common demodulation module; and determining whether the detected wireless signal contains the NFC signal or not according to the filtering signal.
With regard to the apparatus in the above-described embodiment, the specific manner in which each module performs the operation has been described in detail in the embodiment related to the method, and will not be elaborated here.
FIG. 10 is a block diagram illustrating a mobile device according to an example embodiment. For example, the device 800 may be a mobile phone, a mobile computer, etc.
Referring to fig. 10, the apparatus 800 may include one or more of the following components: processing component 802, memory 804, power component 806, multimedia component 808, audio component 810, input/output (I/O) interface 812, sensor component 814, and communication component 816.
The processing component 802 generally controls overall operation of the device 800, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing components 802 may include one or more processors 820 to execute instructions to perform all or a portion of the steps of the methods described above. Further, the processing component 802 can include one or more modules that facilitate interaction between the processing component 802 and other components. For example, the processing component 802 can include a multimedia module to facilitate interaction between the multimedia component 808 and the processing component 802.
The memory 804 is configured to store various types of data to support operations at the apparatus 800. Examples of such data include instructions for any application or method operating on device 800, contact data, phonebook data, messages, pictures, videos, and so forth. The memory 804 may be implemented by any type or combination of volatile or non-volatile memory devices such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disks.
Power components 806 provide power to the various components of device 800. The power components 806 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for the apparatus 800.
The multimedia component 808 includes a screen that provides an output interface between the device 800 and a user. In some embodiments, the screen may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive an input signal from a user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundary of a touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 808 includes a front facing camera and/or a rear facing camera. The front camera and/or the rear camera may receive external multimedia data when the device 800 is in an operating mode, such as a shooting mode or a video mode. Each front camera and rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.
The audio component 810 is configured to output and/or input audio signals. For example, the audio component 810 includes a Microphone (MIC) configured to receive external audio signals when the apparatus 800 is in an operational mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals may further be stored in the memory 804 or transmitted via the communication component 816. In some embodiments, audio component 810 also includes a speaker for outputting audio signals.
The I/O interface 812 provides an interface between the processing component 802 and peripheral interface modules, which may be keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to: a home button, a volume button, a start button, and a lock button.
The sensor assembly 814 includes one or more sensors for providing various aspects of state assessment for the device 800. For example, the sensor assembly 814 may detect the open/closed status of the device 800, the relative positioning of components, such as a display and keypad of the device 800, the sensor assembly 814 may also detect a change in the position of the device 800 or a component of the device 800, the presence or absence of user contact with the device 800, the orientation or acceleration/deceleration of the device 800, and a change in the temperature of the device 800. Sensor assembly 814 may include a proximity sensor configured to detect the presence of a nearby object without any physical contact. The sensor assembly 814 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 814 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.
The communication component 816 is configured to facilitate communications between the apparatus 800 and other devices in a wired or wireless manner. The device 800 may access a wireless network based on a communication standard, such as Wi-Fi, 2G, or 3G, or a combination thereof. In an exemplary embodiment, the communication component 816 receives a broadcast signal or broadcast related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 816 further includes a Near Field Communication (NFC) module to facilitate short-range communications. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, Ultra Wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.
In an exemplary embodiment, the apparatus 800 may be implemented by one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), controllers, micro-controllers, microprocessors or other electronic components for performing the above-described methods.
In an exemplary embodiment, a non-transitory computer-readable storage medium comprising instructions, such as the memory 804 comprising instructions, executable by the processor 820 of the device 800 to perform the above-described method is also provided. For example, the non-transitory computer readable storage medium may be a ROM, a Random Access Memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like.
A non-transitory computer-readable storage medium having instructions stored therein, which when executed by a processor of a mobile terminal, enable the mobile terminal to perform a control method, wherein the mobile terminal includes an NFC module configured to transceive NFC signals, the method comprising:
determining whether the mobile terminal is in a wireless charging mode;
responding to the wireless charging mode, and if the signal intensity of the NFC signal is larger than a preset value, switching the NFC module from a first state to a second state; the interference intensity of the NFC module in the first state on wireless charging is greater than the interference intensity of the NFC module in the second state on wireless charging.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims (14)

1. A charging control method is characterized in that the charging control method is applied to a mobile terminal comprising a Near Field Communication (NFC) module, wherein the NFC module is used for receiving and transmitting NFC signals; the method comprises the following steps:
determining whether the mobile terminal is in a wireless charging mode;
receiving a notification sent by a charging control center of a wireless charging transmitter when the signal intensity of an NFC signal is greater than a preset value; the wireless charging transmitter comprises a first wireless signal demodulation module and is used for detecting the strength of the NFC signal and transmitting the strength of the NFC signal to the charging control center;
responding to the wireless charging mode, and if the signal intensity of the NFC signal is larger than a preset value, switching the NFC module from a first state to a second state; the interference intensity of the NFC module in the first state on wireless charging is greater than that of the NFC module in the second state on wireless charging;
if the NFC signal exists and the signal intensity is greater than the preset value, the NFC module is switched from the first state to the second state, and the method comprises the following steps:
and switching the NFC module from the first state to the second state according to the notification.
2. The method of claim 1, further comprising:
responding to the wireless charging mode, and detecting the NFC signal by utilizing a second wireless signal demodulation module of the mobile terminal;
determining whether the signal strength of the NFC signal is greater than the preset value.
3. The method of any of claims 1-2, wherein switching the NFC module from the first state to the second state comprises at least one of:
the NFC module is switched from an open state to a closed state;
the signal transmission frequency of the NFC module is switched from a first frequency to a second frequency; wherein the second frequency is lower than the first frequency;
the signal transmission intensity of the NFC module is switched from the first intensity to the second intensity; wherein the second intensity is lower than the first intensity.
4. The method of claim 1, further comprising:
and if the NFC signal exists and the signal intensity is less than or equal to the preset value, maintaining the NFC module in the first state.
5. The method of claim 2, further comprising:
generating a preset interrupt in response to the fact that the signal intensity of the NFC signal is larger than the preset value according to the second wireless signal demodulation module, and sending the preset interrupt to a processing module of the mobile terminal;
if the NFC signal exists and the signal intensity is greater than the preset value, the NFC module is switched from the first state to the second state, and the method comprises the following steps:
and the processing module switches the NFC module from the first state to the second state according to the preset interrupt.
6. The method of claim 2, wherein the second wireless signal demodulation module comprises a common demodulation module capable of demodulating the wireless charging signal and the NFC signal, and wherein the detecting the NFC signal by the second wireless signal demodulation module of the mobile terminal comprises:
carrying out wireless signal filtering by utilizing the wireless charging signal and the public demodulation module for NFC signal demodulation to obtain a filtering signal;
and determining whether the detected wireless signal contains the NFC signal or not according to the filtering signal.
7. A charging control device is applied to a mobile terminal comprising a Near Field Communication (NFC) module, wherein the NFC module is used for receiving and transmitting NFC signals; the device comprises:
a first determining module configured to determine whether the mobile terminal is in a wireless charging mode;
the receiving module is configured to receive a notification sent by a charging control center of the wireless charging transmitter when the signal intensity of the NFC signal is greater than a preset value; the wireless charging transmitter comprises a first wireless signal demodulation module and is used for detecting the strength of the NFC signal and transmitting the strength of the NFC signal to the charging control center;
a switching module configured to switch the NFC module from a first state to a second state in response to the wireless charging mode; the interference intensity of the NFC module in the first state on wireless charging is greater than the interference intensity of the NFC module in the second state on wireless charging, and switching the NFC module from the first state to the second state comprises triggering according to the notification.
8. The apparatus of claim 7, further comprising:
the detection module is configured to respond to the wireless charging mode and detect the NFC signal by using a second wireless signal demodulation module of the mobile terminal;
a second determining module configured to determine whether the signal strength of the NFC signal is greater than the preset value.
9. The apparatus of any of claims 7 to 8, wherein the NFC module switches from a first state to a second state comprising at least one of:
the NFC module is switched from an open state to a closed state;
the signal transmission frequency of the NFC module is switched from a first frequency to a second frequency; wherein the second frequency is lower than the first frequency;
the signal transmission intensity of the NFC module is switched from the first intensity to the second intensity; wherein the second intensity is lower than the first intensity.
10. The apparatus of claim 7, further comprising:
and the maintaining module is configured to maintain the NFC module in the first state if the NFC signal exists and the signal intensity is less than or equal to the preset value.
11. The apparatus of claim 8, further comprising an interrupt module and a processing module; wherein the content of the first and second substances,
the interrupt module is configured to generate a preset interrupt in response to the determination that the signal intensity of the NFC signal is greater than the preset value according to the second wireless signal demodulation module, and send the preset interrupt to the processing module;
the processing module is configured to switch the NFC module from the first state to the second state according to the preset interrupt.
12. The apparatus of claim 8, wherein the second wireless signal demodulation module comprises a common demodulation module capable of demodulating the wireless charging signal and the NFC signal,
the detection module is configured to filter a wireless signal by using the common demodulation module to obtain a filtered signal; and determining whether the detected wireless signal contains the NFC signal or not according to the filtering signal.
13. A mobile terminal, comprising:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to perform the charge control method of any one of claims 1 to 6.
14. A non-transitory computer-readable storage medium, instructions in which, when executed by a processor of a mobile terminal, enable the mobile terminal to perform the charging control method of any one of claims 1 to 6.
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