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

Abstract

The present disclosure relates to a charging control method and device, a mobile terminal, and a storage medium. The method is applied to a mobile terminal including a near field communication NFC module, and the NFC module is used to send and receive NFC signals; the method includes: : determine whether the mobile terminal is in the wireless charging mode; in response to the wireless charging mode, if the signal strength of the NFC signal is greater than a preset value, the NFC module is switched from the first state to the second state; wherein, The interference intensity of the NFC module in the first state to wireless charging is greater than the interference intensity of the NFC module in the second state to wireless charging. Through this method, the stability of wireless charging is improved, and the user experience is improved.

Description

Charging control method and device, mobile terminal, storage medium

technical field

The present disclosure relates to the field of wireless charging, and in particular, to a charging control method and device, a mobile terminal, and a storage medium.

Background technique

The wireless charging technology is gradually becoming mature, including the magnetic induction technology represented by the Wireless Power Consortium (WPC) and the magnetic resonance technology represented by the Alliance for Wireless Power (A4WP). The advantages of the wireless charging method are obvious. For example, the charging distance is better than that of the WPC technology, it does not need to be closely attached, and the metal in the charging area will not be heated.

At present, there are more and more wireless charging products based on magnetic induction technology and magnetic resonance technology, especially in the field of smart wearable devices and smart phones.

SUMMARY OF THE INVENTION

The present 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 a near field communication NFC module, where the NFC module is used to send and receive NFC signals; the method includes:

determining whether the mobile terminal is in a wireless charging mode;

In response to the wireless charging mode, if the signal strength of the NFC signal is greater than a preset value, the NFC module is switched from a first state to a second state; wherein the NFC module in the first state The interference strength to wireless charging is greater than the interference strength of the NFC module in the second state to wireless charging.

In some embodiments, the method further includes:

receiving a notification sent by the wireless charging transmitter when the signal strength of the NFC signal is greater than the preset value;

If the NFC signal exists and the signal strength is greater than a preset value, switching the NFC module from the first state to the second state includes:

According to the notification, the NFC module is switched from the first state to the second state.

In some embodiments, the method further includes:

In response to the wireless charging mode, use the wireless signal demodulation module of the mobile terminal to detect the NFC signal;

It is determined whether the signal strength of the NFC signal is greater than the preset value.

In some embodiments, the NFC module switches from the first state to the second state, including at least one of the following:

The NFC module is switched from an on state to an off 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 strength of the NFC module is switched from a first strength to a second strength; wherein the second strength is lower than the first strength.

In some embodiments, the method further includes:

If the NFC signal exists and the signal strength is less than or equal to the preset value, the NFC module is maintained in the first state.

In some embodiments, the method further includes:

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, a preset interrupt is generated, and the preset interrupt is sent to the processing module of the mobile terminal;

If the NFC signal exists and the signal strength is greater than a preset value, switching the NFC module from the first state to the second state includes:

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 using the wireless signal demodulation module of the mobile terminal includes:

Using a common demodulation module for demodulating the wireless charging signal and the NFC signal, filtering the wireless signal to obtain a filtered signal;

According to the filtered signal, it is determined whether the detected wireless signal includes the NFC signal.

According to a second aspect of the embodiments of the present disclosure, a charging control device is provided, which is applied to a mobile terminal including a near field communication NFC module, where the NFC module is used to send and receive NFC signals; the device includes:

a first determination module, configured to determine whether the mobile terminal is in a wireless charging mode;

A switching module configured to, in response to the wireless charging mode, 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; wherein, in the first state The interference strength of the NFC module to wireless charging is greater than the interference strength of the NFC module in the second state to wireless charging.

In some embodiments, the apparatus further includes:

a receiving module, 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 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 includes:

a detection module, configured to detect the NFC signal by using the wireless signal demodulation module of the mobile terminal in response to the wireless charging mode;

The second determination module is configured to determine whether the signal strength of the NFC signal is greater than the preset value.

In some embodiments, the NFC module switches from the first state to the second state, including at least one of the following:

The NFC module is switched from an on state to an off 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 strength of the NFC module is switched from a first strength to a second strength; wherein the second strength is lower than the first strength.

In some embodiments, the apparatus further includes:

A maintenance module, 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 includes an interrupt module and a processing module; wherein,

The interrupt module is configured to generate a preset interrupt 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, and send the preset interrupt to the 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 includes a common demodulation module capable of demodulating the wireless charging signal and the NFC signal,

The detection module is configured to use the public demodulation module to filter the wireless signal to obtain a filtered signal; according to the filtered signal, determine whether the detected wireless signal includes the NFC signal.

According to a third aspect of the embodiments of the present disclosure, a mobile terminal is provided, including:

processor;

memory for storing processor-executable instructions;

Wherein, the processor is configured to execute the charging control method as described in the first aspect above.

According to a fourth aspect of the embodiments of the present disclosure, there is provided a storage medium, comprising:

When the instructions in the storage medium are executed by the processor of the mobile terminal, the mobile terminal is enabled to execute the charging control method as described in the first aspect above.

The technical solutions provided by the embodiments of the present disclosure may include the following beneficial effects:

In the embodiment of the present disclosure, when the mobile terminal is in the wireless charging mode, the mobile terminal determines whether the signal strength of the NFC signal is greater than the preset value, and switches the NFC module from the first state only when the signal strength is greater than the preset value. to a second state in which the interference to wireless charging is relatively low. By changing the state of the NFC module by setting the signal strength threshold, on the one hand, the stability of wireless charging is improved; on the other hand, by adjusting the state of the NFC, the NFC maintenance caused by the mutual interference between the wireless charging signal and the NFC signal is reduced. The phenomenon that the overall NFC communication quality is poor during communication.

It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure.

Description of drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description serve to explain the principles of the disclosure.

FIG. 1 is a charging control method shown in an embodiment of the present disclosure.

FIG. 2 is an example diagram of the hardware architecture of a wireless charging system based on magnetic induction technology.

FIG. 3 is a schematic diagram of a waveform after filtering by a wireless charging demodulation module.

FIG. 4 is a schematic diagram 1 of the configuration of a demodulation module of an NFC signal according to an embodiment of the present disclosure.

FIG. 5 is a second schematic diagram of the configuration of an NFC signal demodulation module according to an embodiment of the present disclosure.

FIG. 6 is a schematic diagram 3 of the configuration of a demodulation module of an NFC signal according to an embodiment of the present disclosure.

FIG. 7 is an example flow chart 1 of a charging control method applied to a mobile phone according to an embodiment of the present disclosure.

FIG. 8 is a second exemplary flowchart of a charging control method applied to a mobile phone according to an embodiment of the disclosure.

Fig. 9 is a diagram of a charging control device according to an exemplary embodiment.

Fig. 10 is a block diagram of a mobile device according to an exemplary embodiment.

Detailed ways

Exemplary embodiments will be described in detail herein, examples of which are illustrated in the accompanying drawings. Where the following description refers to the drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the illustrative examples below are not intended to represent all implementations consistent with this disclosure. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present disclosure as recited in the appended claims.

FIG. 1 shows a charging control method according to an embodiment of the present disclosure, which is applied to a mobile terminal including a near field communication (Near Field Communication, NFC) module, wherein the NFC module is used to send and receive NFC signals. The NFC module at least includes a coil capable of detecting an NFC signal, and capable of receiving an NFC signal sent by an NFC device and sending an NFC signal. Among them, the NFC signal is a wireless signal with a frequency of 13.56MHZ. When the coil of the wireless charging transmitter based on magnetic induction technology senses the signal, its operating frequency is 1~50KHZ, which will be interfered by the high frequency NFC signal; while the wireless charging transmitter based on magnetic resonance technology, its operating frequency is 6.78 MHZ, it is easy to be coupled with the NFC signal and interfere with each other.

As shown in Figure 1, the charging control method includes the following steps:

S11. Determine whether the mobile terminal is in a wireless charging mode.

In the embodiment of the present disclosure, the mobile terminal supports the wireless charging function and the NFC function. The mobile terminal includes: a mobile phone, a tablet computer, a wearable device, etc., which are not limited in this embodiment of the present disclosure.

In the embodiments of the present disclosure, taking the magnetic induction technology as an example, FIG. 2 is an example diagram of the hardware architecture of a wireless charging system based on the magnetic induction technology. As shown in FIG. 2 , the wireless charging system includes a wireless charging transmitter and a wireless charging receiver. , the mobile terminal provided by the embodiment of the present disclosure includes at least a wireless charging receiver. The wireless charging transmitter transmits energy by driving the primary AC coil on the power conversion unit, and the wireless charging receiver receives energy through induction by the secondary coil on the power recovery unit, thereby realizing the transfer of energy from the transmitter to the receiver. After receiving the energy, the wireless charging receiver obtains the identification information and energy demand of the device based on the charging control center in the wireless charging receiver, modulates the digital information through the AC load, and sends it to the wireless charging transmitter through the communication unit. Complete load feedback. After the communication unit in the wireless charging transmitter receives the above digital information, it demodulates various information in the AC load based on the charging control center in the wireless charging transmitter, obtains the wireless charging communication signal, and adjusts the energy according to the wireless charging receiver. demand, adjust the output power level of the wireless charging receiver.

In step S11 of the embodiment of the present disclosure, determining whether the mobile terminal is in the wireless charging mode includes:

The mobile terminal handshakes the charging protocol with the wireless charging transmitter;

If the handshake of the charging protocol is successful, it is determined to be in the wireless charging mode.

Exemplarily, the charging protocol may be a QI protocol based on magnetic induction technology or other wireless charging proprietary protocols developed by manufacturers.

S12. In response to the wireless charging mode, if the signal strength of the NFC signal is greater than the preset value, switch the NFC module from the first state to the second state; wherein, the interference strength of the NFC module in the first state to the wireless charging It is greater than the interference strength of the NFC module in the second state to wireless charging.

In one embodiment, if there is an NFC signal and the signal strength of the NFC signal is less than or equal to a preset value, the NFC module is maintained in the first state.

In an embodiment of the present disclosure, the detected signal strength of the 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, it means that the signal strength of the current NFC signal is strong, and the signal strength of the strong NFC signal has a wide radiation range, which is likely to cause co-frequency and adjacent-frequency interference to the wireless charging signal. To reduce the interference to wireless charging, the state of the NFC module will be switched from the first state to the second state where the interference strength of wireless charging is weakened, so as to reduce the impact of the NFC module sending and receiving NFC signals on wireless charging signals in the first state. interference, thereby improving the reliability of wireless charging.

In other embodiments, when the signal strength of the NFC signal is less than or equal to the preset value, the NFC module can be maintained in the first state, so that the user can continue to use the NFC function at the same time. Specifically, if it is detected that the signal strength of the NFC signal is less than or equal to the preset value, the current cycle of the charging control method will be ended, and the next cycle of the charging control method will be entered after waiting for a predetermined period of time.

In an embodiment, the NFC module is switched from the first state to the second state, including at least one of the following:

The NFC module is switched from the on state to the off state;

The signal transmission frequency of the NFC module is switched from the first frequency to the second frequency; wherein, the second frequency is lower than the first frequency;

The signal transmission strength of the NFC module is switched from the first strength to the second strength; wherein the second strength is lower than the first strength.

It should be noted that, in the embodiments of the present disclosure, it can be set that when it is detected that the display screen of the mobile terminal is bright, the NFC module in the mobile terminal works, and it can also be set that when it is detected that the mobile terminal is in the power-on state, that is, the mobile terminal is moved. When the display screen of the terminal is on or off, the NFC module works. The embodiment of the present disclosure does not limit the triggering method for the operation of the NFC module. It can be understood that, in this embodiment, the NFC module is switched from an on state to an off state. In the open state, the NFC module can send and receive signals, and in the closed state, the NFC module does not send and receive NFC signals. In this way, by turning off the NFC module, the interference of the NFC signal to the wireless charging signal can be minimized, the interference of the wireless charging to the NFC module is also reduced, and the damage probability of the NFC module is reduced.

The transmission frequency of the NFC signal is reduced from the first frequency to the second frequency, which at least reduces the interaction frequency of the NFC signal of the mobile terminal, thereby reducing the frequency of interference to the wireless charging signal. The transmission strength of the NFC signal is reduced from the first strength to the second strength. Because the signal strength of the NFC signal is reduced, the radiation range of the NFC is reduced. On the one hand, the energy radiated by the NFC signal to the transmission space of the wireless charging signal may be reduced. On the other hand, the area in which the NFC signal is radiated into the transmission space of the wireless charging signal may be reduced, thereby reducing the overall interference intensity to the wireless charging signal. Therefore, by switching the state, the interference frequency or the interference intensity of the single interference is reduced, thereby reducing the interference to the wireless charging signal as a whole.

At the same time, the NFC module is not directly turned off, but the interference intensity of the NFC module to wireless charging is reduced. At the same time, the NFC module in the mobile terminal can still communicate normally, so that NFC can be realized while wireless charging. Communication, which meets the needs of users to use the NFC function to communicate while wirelessly charging.

In an embodiment, the mobile terminal may also reduce its own wireless charging power or suspend the wireless charging process according to a preset communication importance degree, so as to meet the user's usage requirements or reduce the hardware consumption of the mobile terminal.

For example, when wireless charging and NFC communication will interfere with each other, if the importance of communication is set in the mobile terminal based on user settings, such as setting the importance of NFC communication to be the first during the wireless charging process, when the mobile terminal After detecting that the NFC module and the NFC module in other mobile terminals have completed the handshake protocol of the NFC communication, the wireless charging process of itself is suspended to ensure the normal operation of the NFC communication and meet the user's use requirements.

For another example, if the mobile terminal detects an application message for a certain application during the wireless charging process, such as an incoming call message from a mobile phone, the mobile terminal will suspend the wireless charging process according to the preset settings to reduce the number of phone applications and wireless charging. When the application and the NFC application are running together, the hardware loss due to excessive heat generation.

However, it should be noted that, in the embodiment of the present disclosure, before judging whether the signal strength of the NFC signal is greater than a 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, and may also be completed at the wireless charging transmitter side, which is not limited in the embodiment of the present disclosure.

In an embodiment, when the signal strength detection of the NFC signal is completed at the wireless charging transmitter end, the charging control method applied to the mobile terminal further includes:

The mobile terminal receives the notification sent by the wireless charging transmitter when the NFC strength is greater than the preset value;

Step S12 includes:

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 by detecting the wireless signal demodulation module in the wireless charging transmitter. The wireless signal demodulation module applied in the wireless charging transmitter may be an independent NFC demodulation module, or may be a common demodulation module shared by the wireless charging signal and the 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 can be compared with the preset value based on the charging control center set in the wireless charging transmitter, and the A communication packet including an NFC interference notification is added to the wireless charging signal, and in-band communication is used to notify a Microcontroller Unit (MCU) in the mobile terminal. The MCU in the mobile terminal is the main control center that manages 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:

In response to the wireless charging mode, use the wireless signal demodulation module of the mobile terminal to detect the NFC signal;

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 in the mobile terminal can also be an independent NFC demodulation module, and when the mobile terminal can also be used as a power source, that is, when the wireless charging transmitter has the charging function , the wireless signal demodulation module applied in 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 an independent NFC demodulation module, the wireless signal demodulation module includes a band-pass filter or a low-pass filter, based on the operating frequency range of the NFC signal. Design, such as NFC signal frequency range includes 13.56MHZ. The NFC signal can be demodulated through the wireless signal demodulation module, and the strength of the NFC signal can be obtained.

However, in the related art, a wireless charging demodulation module has been included in the wireless charging transmitter, and the wireless charging demodulation module also includes a band-pass filter or a low-pass filter, at least based on the working frequency range of the wireless charging signal And design, such as the frequency range includes 2KHZ. The wireless charging signal demodulation module retains the wireless charging signal and the NFC signal after filtering the wireless signal, but the demodulator in the wireless charging signal demodulation module can only demodulate the wireless charging signal. FIG. 3 is a schematic diagram of a waveform after filtering by a wireless charging demodulation module. As shown in FIG. 3 , after filtering by a filter in the wireless charging demodulation module, there are still WPC communication waveforms and NFC communication waveforms.

Therefore, in another embodiment, the existing wireless charging demodulation module in the wireless charging transmitter can be used to retain the characteristics of the NFC signal after filtering, so that it has the function of demodulating the NFC signal at the same time. Of course, the signal strength of the NFC signal can 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 embodiments of the present disclosure, in the common demodulation module that can demodulate the wireless charging signal and the NFC signal at the same time, the wireless charging signal and the NFC signal can be obtained by sharing the filter, but the demodulation is not shared. A demodulator that can demodulate wireless charging signals and a demodulator that can demodulate NFC signals are independently set in the public demodulation module.

In one embodiment, using the wireless signal demodulation module of the mobile terminal to detect the NFC signal includes:

The mobile terminal uses a public demodulation module for demodulation of the wireless charging signal and the NFC signal to filter the wireless signal to obtain the filtered signal;

Based on the filtered signal, it is determined whether the detected wireless signal contains an NFC signal.

In this embodiment, as mentioned above, when the mobile terminal includes a 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 together. signal and NFC signal. When determining whether the NFC signal is included, the high and low levels of the filtered signal can be detected according to the demodulator, and whether the NFC signal is included can be determined according to the changing frequency of the high and low levels. For example, if the received signal contains both the wireless charging signal and the NFC signal, the filtered signal will contain both the signal of the first frequency corresponding to the wireless charging signal and the signal of the second frequency corresponding to the NFC signal. If the signal of the second frequency is included, the signal received by the common demodulation module includes the signal of the second frequency.

In the embodiment of the present 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 the charging control center in the mobile terminal, or the detected signal strength may be compared with a preset value in the mobile terminal. The comparison is performed in the NFC-specific integrated circuit (Integrated Circuit, IC), and the comparison result is sent to the main control MCU in the mobile terminal, and the MCU controls the switching state of the NFC module. In addition, the MCU of the mobile terminal can also compare with the preset value, 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 a preset value according to the wireless signal demodulation module, a preset interrupt is generated, and the preset interrupt is sent to the processing module of the mobile terminal, step S12 include:

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. The interrupt is set, and the preset interrupt is sent to the processing module, which is the main control MCU of the mobile terminal.

FIG. 4 is a schematic diagram 1 of a demodulation module of an NFC signal according to an embodiment of the present disclosure. As shown in FIG. 4 , the wireless charging transmitter and the wireless charging receiver transmit energy through the coil, and when the wireless charging receiver is turned on When the NFC function is enabled, the NFC signal will be coupled with the wireless charging signal, causing interference. Therefore, the NFC signal can be demodulated by setting the forward charging demodulation module or the NFC demodulation module 1 in the wireless charging transmitter to obtain the strength of the NFC signal and feed it back to the charging control center of the wireless charging transmitter. In addition, NFC demodulation module 2 or reverse charging demodulation module can also be set in the wireless charging receiver to demodulate the NFC signal, obtain the strength of the NFC signal and feed it back to the charging control center of the wireless charging receiver. The forward charging demodulation module in the wireless charging sending end and the reverse charging demodulation module in the wireless charging receiving end are the common demodulation module 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.

5 is a second schematic diagram of the configuration of an NFC signal demodulation module according to an embodiment of the present disclosure. Taking the wireless charging transmitter and the wireless charging receiver both as a mobile terminal with wireless charging function and NFC function as an example, as shown in FIG. As shown in Fig. 5, the mobile terminal 1 and the mobile terminal 2 transmit energy through the coil, and when the NFC function is enabled in the mobile terminal 2, the NFC signal will be coupled with the wireless charging signal, thereby causing 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, and the strength of the NFC signal can be obtained and fed back to the charging control center of the mobile terminal 1; An NFC demodulation module 2 or a demodulation module 2 is set in the terminal 2 to demodulate the NFC signal, obtain the strength of the NFC signal, and feed it back to the charging control center of the mobile terminal 2 . It should be noted that the functions of the demodulation module 1 arranged in the mobile terminal 1 and the demodulation module 2 arranged in the mobile terminal 2 are the same as those of the forward charging demodulation module or the reverse charging demodulation module in FIG. 4 . module.

FIG. 6 is a schematic diagram 3 of the 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. The terminal 2 transmits energy through the coil, and when the NFC function is enabled in the mobile terminal 1 or the mobile terminal 2, the NFC signal will be coupled with the wireless charging signal, thereby causing interference. Therefore, by setting the demodulation module 1 or the NFC demodulation module 1 in the mobile terminal 1 to demodulate the NFC signal, the strength of the NFC signal can be obtained. In addition, an NFC demodulation module 2 or a demodulation module 2 may also be set in the mobile terminal 2 to demodulate the NFC signal to obtain the strength of the NFC signal. However, different from FIG. 5, the strength of the NFC signal obtained after demodulating the NFC signal by the demodulation module 1 or the NFC demodulation module 1 is fed back to the MCU or NFC dedicated IC of the mobile terminal 1, and the NFC demodulation module 2 or the strength of the NFC signal obtained by the demodulation module 2 after demodulating the NFC signal is fed back to the MCU or NFC dedicated IC of the mobile terminal 2 .

Based on the mobile terminal 1 and the mobile terminal 2 shown in FIG. 5 and FIG. 6 that both have the wireless charging function and the NFC function, when performing wireless charging, the mobile terminal 2 is used as the wireless charging receiver, and the NFC module in the mobile terminal 2 is Taking the open state as an example, if it is confirmed in the mobile terminal 1 that the signal strength of the NFC signal is greater than the preset value, the mobile terminal 1 can notify the mobile terminal 2 to adjust the state of the NFC module based on the Bluetooth communication; When the signal strength of the NFC signal is greater than the preset value, the mobile terminal 2 directly adjusts the state of the NFC module.

Of course, if the NFC modules in mobile terminal 1 and mobile terminal 2 are both turned on, after either end detects that the signal strength of the NFC signal is greater than the preset value, the NFC modules in mobile terminal 1 and mobile terminal 2 can also be adjusted. status.

For example, if the mobile terminal 2 is used as the wireless charging transmitter, if it is confirmed 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 the off state.

It should be noted that, in the embodiments of the present disclosure, any one of the wireless charging transmitter or the mobile terminal may be provided with a module that can at least demodulate the NFC signal. The module design method for demodulating the NFC signal, and whether the demodulated signal is sent to the charging control center, or to the main control MCU or NFC dedicated IC, are not limited in the embodiments of the present disclosure.

It can be understood that, in the embodiment of the present disclosure, when the mobile terminal is in the wireless charging mode, it determines whether the signal strength of the NFC signal is greater than the preset value, and only switches the NFC module when the signal strength is greater than the preset value. Switching from the first state to a second state with relatively low interference to wireless charging. By changing the state of the NFC module by setting the signal strength threshold, on the one hand, the stability of wireless charging is improved; on the other hand, by adjusting the state of the NFC module, the interference caused by the wireless charging signal and the NFC signal is reduced. The NFC sustaining the communication leads to a phenomenon that the quality of the NFC communication is poor as a whole.

The mobile terminal is a mobile phone as an example below. The mobile phone supports wireless charging and NFC communication functions. The charging control center in the mobile phone detects the signal strength of the NFC signal and determines whether the signal strength is greater than a preset value. FIG. 7 is an example flow chart 1 of a charging control method applied to a mobile phone according to an embodiment of the disclosure, as shown in FIG. 7 , including the following steps:

S21. The NFC demodulation module in the mobile phone demodulates the signal strength 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 demodulation by the NFC demodulation module is a millivolt.

S22, the charging control center in the mobile phone determines whether the signal strength is greater than the preset value, if yes, go to step S23, if not, go to step S25.

In this embodiment, if the preset value is x millivolts, when a is greater than x, step S23 is performed, otherwise, step S25 is performed.

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 perform steps S24 to S25.

S24, the main control MCU sets the NFC module to a closed state according to a preset interrupt.

S25, the main control MCU continues to control the wireless charging module to execute the wireless charging process.

It should be noted that the wireless charging process that the wireless charging module continues to execute is a wireless charging process that is not interfered by the NFC signal.

FIG. 8 is an example flow chart of a charging control method applied to a mobile phone according to an embodiment of the disclosure. The main control MCU in the mobile phone determines whether the signal strength is greater than a preset value. As shown in Figure 8, it includes the following steps:

S31. The NFC demodulation module in the mobile phone demodulates the signal strength 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 demodulation by the NFC demodulation module is a millivolt.

S32, the charging control center in the mobile phone feeds back the signal strength to the main control MCU.

S33. The main control MCU judges whether the signal strength is greater than the preset value, and if so, executes step S34, and if not, executes step S35.

In this embodiment, if the preset value is x millivolts, when a is greater than x, step S33 is performed, otherwise, step S35 is performed.

S34 , the main control MCU sets the NFC module to the off state, and executes step S35 .

S35, the main control MCU continues to control the wireless charging module to execute the wireless charging process.

It should be noted that the wireless charging process that the wireless charging module continues to execute 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 FIG. 8 , when the mobile phone is in the wireless charging mode, it determines whether the signal strength of the NFC signal is greater than the preset value, and sets the NFC mode when the signal strength is greater than the preset value. The group is turned off. On the one hand, it improves the stability of wireless charging; on the other hand, it reduces the probability of damage to the NFC module.

Fig. 9 is a diagram of a charging control device according to an exemplary embodiment. 9, the charging control device is applied to a mobile terminal including a near field communication NFC module, the NFC module is used to send and receive NFC signals; including:

a first determination module 101, configured to determine whether the mobile terminal is in a wireless charging mode;

The switching module 102 is configured to, in response to the wireless charging mode, 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; wherein, in the first state The interference intensity of the NFC module in the state to wireless charging is greater than the interference intensity of the NFC module in the second state to wireless charging.

In some embodiments, the NFC module switches from the first state to the second state, including at least one of the following:

The NFC module is switched from an on state to an off 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 strength of the NFC module is switched from a first strength to a second strength; wherein the second strength is lower than the first strength.

In some embodiments, the apparatus further includes:

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 includes:

The detection module 104 is configured to detect the NFC signal by using the wireless signal demodulation module of the mobile terminal in response to the wireless charging mode;

The second determination module 105 is configured to determine whether the signal strength of the NFC signal is greater than the preset value.

In some embodiments, the apparatus further includes:

The maintaining module 106 is 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 includes an interrupt module 107 and a processing module 108; wherein,

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 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 includes a common demodulation module capable of demodulating the wireless charging signal and the NFC signal,

The detection module 104 is configured to use the public demodulation module to filter the wireless signal to obtain a filtered signal; according to the filtered signal, determine whether the detected wireless signal includes the NFC signal.

Regarding the apparatus in the above-mentioned embodiment, the specific manner in which each module performs operations has been described in detail in the embodiment of the method, and will not be described in detail here.

Fig. 10 is a block diagram of a mobile device according to an exemplary embodiment. For example, the device 800 may be a mobile phone, a mobile computer, or the like.

10, the apparatus 800 may include one or more of the following components: a processing component 802, a memory 804, a power supply component 806, a multimedia component 808, an audio component 810, an input/output (I/O) interface 812, a sensor component 814, and communication component 816.

The processing component 802 generally controls the overall operation of the device 800, such as operations associated with display, phone calls, data communications, camera operations, and recording operations. The processing component 802 can include one or more processors 820 to execute instructions to perform all or some of the steps of the methods described above. Additionally, processing component 802 may include one or more modules that facilitate interaction between processing component 802 and other components. For example, processing component 802 may include a multimedia module to facilitate interaction between multimedia component 808 and processing component 802.

Memory 804 is configured to store various types of data to support operations at device 800 . Examples of such data include instructions for any application or method operating on device 800, contact data, phonebook data, messages, pictures, videos, and the like. Memory 804 may be implemented by any type of volatile or nonvolatile storage device or combination thereof, 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 Disk.

Power supply assembly 806 provides power to the various components of device 800 . Power components 806 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to device 800 .

Multimedia component 808 includes a screen that provides an output interface between the device 800 and the 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 input signals from a user. The touch panel includes one or more touch sensors to sense touch, swipe, and gestures on the touch panel. The touch sensor may not only sense the boundaries of a touch or swipe action, but also detect the duration and pressure associated with the touch or swipe action. In some embodiments, the multimedia component 808 includes a front-facing camera and/or a rear-facing camera. When the apparatus 800 is in an operation mode, such as a shooting mode or a video mode, the front camera and/or the rear camera may receive external multimedia data. Each of the front and rear cameras can be a fixed optical lens system or have focal length and optical zoom capability.

Audio component 810 is configured to output and/or input audio signals. For example, audio component 810 includes a microphone (MIC) that is configured to receive external audio signals when device 800 is in operating modes, such as call mode, recording mode, and voice recognition mode. The received audio signal may be further stored in memory 804 or transmitted via 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 a peripheral interface module, which may be a keyboard, a click wheel, a button, or the like. These buttons may include, but are not limited to: home button, volume buttons, start button, and lock button.

Sensor assembly 814 includes one or more sensors for providing status assessment of various aspects of device 800 . For example, the sensor assembly 814 can detect the open/closed state of the device 800, the relative positioning of components, such as the display and keypad of the device 800, and the sensor assembly 814 can 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 the temperature change of the device 800 . Sensor assembly 814 may include a proximity sensor configured to detect the presence of nearby objects in the absence of any physical contact. 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.

Communication component 816 is configured to facilitate wired or wireless communication between apparatus 800 and other devices. Device 800 may access wireless networks based on communication standards, such as Wi-Fi, 2G or 3G, or a combination thereof. In one exemplary embodiment, the communication component 816 receives broadcast signals or broadcast related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 816 also includes a near field communication (NFC) module to facilitate short-range communication. 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, 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 A gate array (FPGA), controller, microcontroller, microprocessor or other electronic component implementation is used to perform the above method.

In an exemplary embodiment, there is also provided a non-transitory computer-readable storage medium including instructions, such as a memory 804 including instructions, executable by the processor 820 of the apparatus 800 to perform the method described above. For example, the non-transitory computer-readable storage medium may be ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, and the like.

A non-transitory computer-readable storage medium, when instructions in the storage medium are executed by a processor of a mobile terminal, the mobile terminal can execute a control method, wherein the mobile terminal includes an NFC module for sending and receiving NFC signals. group, the method includes:

determining whether the mobile terminal is in a wireless charging mode;

In response to the wireless charging mode, if the signal strength of the NFC signal is greater than a preset value, the NFC module is switched from a first state to a second state; wherein the NFC module in the first state The interference strength to wireless charging is greater than the interference strength of the NFC module in the second state to wireless charging.

Other embodiments of the present disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common general knowledge or techniques in the technical field not disclosed by this disclosure . The specification and examples are to be regarded as exemplary only, with the true scope and spirit of the disclosure being indicated by the following claims.

It is to be understood that the present disclosure is not limited to the precise structures described above and illustrated in the accompanying 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 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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