CN108711957B - Control method for preventing radio frequency index interference, processing device and electronic equipment - Google Patents
Control method for preventing radio frequency index interference, processing device and electronic equipment Download PDFInfo
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Abstract
The embodiment of the application provides a control method for preventing radio frequency index interference, a processing device and electronic equipment. The control method for preventing the radio frequency index interference comprises the following steps: when the wireless charging is carried out, the radio frequency index of a power supply to a terminal power amplifier is obtained; and when the working frequency of the wireless charger interferes with the radio frequency index, adjusting the working frequency of the wireless charger. The interference of the power supply to the radio frequency index of the terminal power amplifier can be prevented.
Description
Technical Field
The present disclosure relates to the field of electronic technologies, and in particular, to a control method, a processing apparatus, and an electronic device for preventing radio frequency indicator interference.
Background
With the development of electronic technology, electronic devices such as smart phones have become more and more rich in functions. Users have been using electronic devices for longer and longer time, and charging of electronic devices becomes an important link because of the long-term use of electronic devices.
At present, the charging mode of electronic equipment usually adopts the wired charging mode, when people go out, people need to carry a charging wire and the like, which is quite troublesome, and the wireless charging is already in the application and research stage.
At present, in wireless charging, only whether the charger can meet the charging current is generally considered, and the charger may interfere with the radio frequency index at the charging current.
Disclosure of Invention
The embodiment of the application provides a control method, a processing device and an electronic device for preventing radio frequency index interference, which can prevent radio frequency index interference.
The embodiment of the application provides a control method for preventing radio frequency index interference, which is used for controlling a wireless charger to charge a terminal and comprises the following steps:
when the wireless charging is carried out, the radio frequency index of a power supply to a terminal power amplifier is obtained;
and when the working frequency of the wireless charger interferes with the radio frequency index, adjusting the working frequency of the wireless charger.
The embodiment of the present application further provides a processing apparatus for preventing radio frequency indicator interference, the apparatus includes:
the acquisition module is used for acquiring the radio frequency index of the power supply to the terminal power amplifier when wireless charging is carried out;
and the adjusting module is used for adjusting the working frequency of the wireless charger when the working frequency of the wireless charger interferes with the radio frequency index.
The embodiment of the application also provides electronic equipment, and the electronic equipment comprises the processing device for preventing the radio frequency index interference.
According to the control method for preventing the radio frequency index interference, when wireless charging is carried out, the radio frequency index of a power supply to a terminal power amplifier is obtained; and when the working frequency of the wireless charger interferes with the radio frequency index, adjusting the working frequency of the wireless charger. When the wireless charger is charged, the working frequency of the wireless charger easily causes radio frequency index interference, so that when the working frequency of the wireless charger causes interference, the working frequency of the wireless charger is adjusted, and the radio frequency index of a power supply to a terminal power amplifier is avoided.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings used in the description of the embodiments will be briefly introduced below. It is obvious that the drawings in the following description are only some embodiments of the application, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
Fig. 1 is a flowchart illustrating a control method for preventing radio frequency indicator interference according to an embodiment of the present disclosure.
Fig. 2 is a flowchart illustrating a control method for preventing radio frequency indicator interference according to an embodiment of the present disclosure.
Fig. 3 is a flowchart illustrating a control method for preventing radio frequency indicator interference according to an embodiment of the present application.
Fig. 4 is a schematic structural diagram of a processing device for preventing radio frequency indicator interference according to an embodiment of the present application.
Fig. 5 is a schematic structural diagram of a processing device for preventing radio frequency indicator interference according to an embodiment of the present application.
Fig. 6 is a schematic structural diagram of a processing device for preventing radio frequency indicator interference according to an embodiment of the present application.
Fig. 7 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
Fig. 8 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without inventive step, are within the scope of the present application.
The terms "first," "second," "third," and the like in the description and in the claims of the present application and in the above-described drawings, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the objects so described are interchangeable under appropriate circumstances. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, or apparatus, electronic device, system comprising a list of steps is not necessarily limited to those steps or modules or units explicitly listed, may include steps or modules or units not explicitly listed, and may include other steps or modules or units inherent to such process, method, apparatus, electronic device, or system.
An embodiment of the present application provides a control method for preventing radio frequency indicator interference, where the method is applied to an electronic device, and referring to fig. 1, fig. 1 is a schematic flow diagram of the control method for preventing radio frequency indicator interference according to the embodiment of the present application. The control method for preventing radio frequency index interference can comprise the following steps:
101. and when the wireless charging is carried out, the radio frequency index of the power supply to the terminal power amplifier is obtained.
The wireless charging method includes, but is not limited to, electromagnetic induction, magnetic field resonance, and radio wave. In the electromagnetic induction type wireless charging scheme, a primary coil provides alternating current with a certain frequency, and certain current is generated in a secondary coil through electromagnetic induction, so that energy is transferred from a transmission end to a receiving end. Magnetic field resonance wireless charging schemes include an energy transmitting device and an energy receiving device that exchange energy with each other when the two devices are tuned to the same frequency, or resonate at a specific frequency. The wireless charging scheme of the radio wave type comprises a microwave transmitting device and a microwave receiving device, can capture the radio wave energy rebounded from a wall, and keeps stable direct-current voltage while adjusting with the load.
The wireless charging process may be that, when a user charges a battery using wireless charging, the wireless charger is aligned with the wireless receiving coil, and the wireless receiving coil may receive an electromagnetic wave signal transmitted by the wireless charger in a wireless receiving manner, that is, a receiving end of the wireless receiving coil may receive the electromagnetic wave signal. Then, the wireless receiving coil can transmit the received electromagnetic wave signals to the wireless conversion chip, the wireless conversion chip can convert and filter the electromagnetic wave signals into direct current and transmit the direct current to the wireless charging management chip, and the wireless charging management chip can charge the battery with the direct current formed after conversion and filtering. Because the power amplifier supplies power through the power supply, the working frequency of the wireless charging management chip easily influences the radio frequency index of the power supply to the terminal power amplifier during the charging process of the wireless charging.
The radio frequency index comprises a switching spectrum, a modulation spectrum and the like. In the embodiment of the present application, the radio frequency indicator is a switch spectrum without a special description.
The radio frequency index of the power supply to the terminal power amplifier can be acquired through the comprehensive tester or the frequency spectrograph in the embodiment of the application, and it can be understood that other modes can be adopted to acquire the radio frequency index of the power supply to the terminal power amplifier in the embodiment of the application. In the present application, the manner of obtaining the radio frequency index is not described in detail.
102. And when the working frequency of the wireless charger interferes with the radio frequency index, adjusting the working frequency of the wireless charger.
It should be noted that, when the operating frequency of the wireless charger causes interference to the radio frequency indicator, the currently used method is usually a calibration method, and when the calibration method cannot solve the problem that the radio frequency indicator receives the interference, the filtering circuit before VRAMP of the power amplifier is adjusted, or the power supply amount for charging the wireless charger is reduced. However, the filter circuit is still unable to eliminate interference in some frequency bands. Such as low band interference. Therefore, radio frequency indexes cannot be eliminated when being interfered, and meanwhile, the charging of follow-up larger current due to faster working frequency cannot be realized.
In the embodiment of the application, the working frequency of the wireless charger is adjusted to be out of the range of the radio frequency index, so that the working frequency of the wireless charger is prevented from interfering the radio frequency index, and the wireless charging with larger current becomes possible.
According to the control method for preventing the radio frequency index interference, when wireless charging is carried out, the radio frequency index of a power supply to a terminal power amplifier is obtained; and when the working frequency of the wireless charger interferes with the radio frequency index, adjusting the working frequency of the wireless charger. When the wireless charger is charged, the working frequency of the wireless charger easily causes radio frequency index interference, so that when the working frequency of the wireless charger causes interference, the working frequency of the wireless charger is adjusted, and the radio frequency index of a power supply to a terminal power amplifier is avoided.
As shown in fig. 2, fig. 2 is another flowchart of a control method for preventing radio frequency indicator interference according to an embodiment of the present application. 101. The method for acquiring the radio frequency index of the power supply to the terminal power amplifier comprises the following steps:
1011. and collecting switch spectrum and power time information.
The Spectrum from Spectrum to Switching refers to a radio frequency Spectrum generated in a frequency band near a nominal carrier frequency when the Switching Spectrum is a global system for mobile communications (GSM) mobile phone power Switching. I.e., the radio frequency power at different frequency offsets of its nominal carrier frequency (mainly at adjacent frequency channels) due to the rising and falling edges of the modulation burst. The purpose is to prevent the switch pulse generated by the frequency band switching from generating interference to the adjacent channel (referring to the interference generated by the local channel to the adjacent channel).
Wherein, the power time information (PowerVsTime, PVT) is a curve relation of power variation with time.
It should be noted that, a scanning interface formed by the switching spectrum and the power time information can be obtained by a scanner of the integrated tester. The switch spectrum and power time information can be obtained by observing the scanning interface. Of course, the switching spectrum and power time information may be obtained in other ways. In the embodiment of the present application, the acquisition of the switch spectrum and the power time information is not described in detail.
1012. Determining a range of rising and falling edges of the switching spectrum based on the power time information.
It should be noted that each of the rising edges and falling edges of the Power Control Level (PCL) corresponding to each system has a certain number of values, which are usually expressed as 15-16 numbers, and the switching spectrum and the power time information (PVT) are adjusted by changing the numbers.
Whether the current system belongs to the low frequency can be judged according to the ranges of the rising edge and the falling edge of the switch spectrum. Taking GSM as an example, it includes the following 4 systems: GSM850, GSM900, DCS1800 and PCS1900, wherein GSM850 and GSM900 are low-frequency power stages, the power level is 5-19, DCS1800 and PCS1900 are high-frequency power stages, the power level is 0-15, and the national standard of the switch spectrum is shown.
As shown in fig. 3, fig. 3 is another flowchart of a control method for preventing radio frequency indicator interference according to an embodiment of the present application. 102. When the operating frequency of the wireless charger causes interference to the radio frequency index, adjusting the operating frequency of the wireless charger comprises:
1021. and acquiring a first working frequency of the wireless charger.
It should be noted that the first operating frequency of the wireless charging is a current operating frequency of the wireless charger during charging, and the first operating frequency is obtained through real-time detection of the detection circuit.
1022. And when the first working frequency of the wireless charger causes interference to the radio frequency index, switching the wireless charger to a second working frequency.
It should be noted that the second operating frequency is usually a preset operating frequency range, and may also be a preset frequency value, and the second operating frequency range of the wireless charger is not specifically limited in this embodiment of the application. However, in some embodiments, the ultra-low frequency of the switching spectrum is not easily filtered by the filter capacitor after interference is received. Therefore, the setting of the second operating frequency of the wireless charger needs to avoid the frequency band. Thus switching the wireless charger to the second operating frequency may prevent the switching spectrum from being disturbed.
Wherein the second operating frequency of the wireless charger is set to range from 3.2Mhz to 3.6 Mhz. The operating frequency of the existing wireless charger is generally 1.4 Mhz. When the frequency of the switching spectrum is also 1.4Mhz, the working frequency of the wireless charger interferes with the switching spectrum, and meanwhile, the ultralow frequency of 1.4Mhz is very difficult to filter through the filter capacitor, so that the second working frequency of the wireless charger is set to be 3.2Mhz to 3.6 Mhz. The switching spectrum can be prevented from being disturbed.
1022. When the first working frequency of the wireless charger causes interference to the radio frequency index, switching the wireless charger to a second working frequency comprises:
and when the first working frequency of the wireless charger is in the range of the rising edge and the falling edge of the switch spectrum, switching the wireless charger to a second working frequency.
It should be noted that, through the ranges of the rising edge and the falling edge of the switching spectrum, the frequency band range of the switching spectrum can be determined. Of course, the first operation of the wireless charger is in the frequency range, so that interference of the switching spectrum is easily caused.
The embodiment of the present application further provides a processing apparatus for preventing radio frequency indicator interference, where the information prompting apparatus may be integrated in the electronic device 100.
As shown in fig. 4, the processing device for preventing the radio frequency indicator interference may include: an acquisition module 201 and an acquisition module 202. Wherein:
the obtaining module 201 is configured to obtain a radio frequency indicator of a power supply to a terminal power amplifier when the terminal is wirelessly charged.
The wireless charging method includes, but is not limited to, electromagnetic induction, magnetic field resonance, and radio wave. In the electromagnetic induction type wireless charging scheme, a primary coil provides alternating current with a certain frequency, and certain current is generated in a secondary coil through electromagnetic induction, so that energy is transferred from a transmission end to a receiving end. Magnetic field resonance wireless charging schemes include an energy transmitting device and an energy receiving device that exchange energy with each other when the two devices are tuned to the same frequency, or resonate at a specific frequency. The wireless charging scheme of the radio wave type comprises a microwave transmitting device and a microwave receiving device, can capture the radio wave energy rebounded from a wall, and keeps stable direct-current voltage while adjusting with the load.
The wireless charging process may be that, when a user charges a battery using wireless charging, the wireless charger is aligned with the wireless receiving coil, and the wireless receiving coil may receive an electromagnetic wave signal transmitted by the wireless charger in a wireless receiving manner, that is, a receiving end of the wireless receiving coil may receive the electromagnetic wave signal. Then, the wireless receiving coil can transmit the received electromagnetic wave signals to the wireless conversion chip, the wireless conversion chip can convert and filter the electromagnetic wave signals into direct current and transmit the direct current to the wireless charging management chip, and the wireless charging management chip can charge the battery with the direct current formed after conversion and filtering. Because the power amplifier supplies power through the power supply, the working frequency of the wireless charging management chip easily influences the radio frequency index of the power supply to the terminal power amplifier during the charging process of the wireless charging.
The radio frequency index comprises a switching spectrum, a modulation spectrum and the like. In the embodiment of the present application, the radio frequency indicator is a switch spectrum without a special description.
The radio frequency index of the power supply to the terminal power amplifier can be acquired through the comprehensive tester or the frequency spectrograph in the embodiment of the application, and it can be understood that other modes can be adopted to acquire the radio frequency index of the power supply to the terminal power amplifier in the embodiment of the application. In the present application, the manner of obtaining the radio frequency index is not described in detail.
An obtaining module 202, configured to adjust the operating frequency of the wireless charger when the operating frequency of the wireless charger causes interference to the radio frequency indicator.
It should be noted that, when the operating frequency of the wireless charger causes interference to the radio frequency indicator, the currently used method is usually a calibration method, and when the calibration method cannot solve the problem that the radio frequency indicator receives the interference, the filtering circuit before VRAMP of the power amplifier is adjusted, or the power supply amount for charging the wireless charger is reduced. However, the filter circuit is still unable to eliminate interference in some frequency bands. Such as low band interference. Therefore, radio frequency indexes cannot be eliminated when being interfered, and meanwhile, the charging of follow-up larger current due to faster working frequency cannot be realized.
In the embodiment of the application, the working frequency of the wireless charger is adjusted to be out of the range of the radio frequency index, so that the working frequency of the wireless charger is prevented from interfering the radio frequency index, and the wireless charging with larger current becomes possible.
Referring to fig. 5, in some embodiments, the obtaining module 201 may include:
and the acquisition module 2011 is configured to acquire the switch spectrum and the power time information.
The Spectrum from Spectrum to Switching refers to a radio frequency Spectrum generated in a frequency band near a nominal carrier frequency when the Switching Spectrum is a global system for mobile communications (GSM) mobile phone power Switching. I.e., the radio frequency power at different frequency offsets of its nominal carrier frequency (mainly at adjacent frequency channels) due to the rising and falling edges of the modulation burst. The purpose is to prevent the switch pulse generated by the frequency band switching from generating interference to the adjacent channel (referring to the interference generated by the local channel to the adjacent channel).
Wherein, the power time information (PowerVsTime, PVT) is a curve relation of power variation with time.
It should be noted that, a scanning interface formed by the switching spectrum and the power time information can be obtained by a scanner of the integrated tester. The switch spectrum and power time information can be obtained by observing the scanning interface. Of course, the switching spectrum and power time information may be obtained in other ways. In the embodiment of the present application, the acquisition of the switch spectrum and the power time information is not described in detail.
A determining module 2012 for determining a range of rising and falling edges of the switching spectrum based on the power time information.
It should be noted that each of the rising edges and falling edges of the Power Control Level (PCL) corresponding to each system has a certain number of values, which are usually expressed as 15-16 numbers, and the switching spectrum and the power time information (PVT) are adjusted by changing the numbers.
Whether the current system belongs to the low frequency can be judged according to the ranges of the rising edge and the falling edge of the switch spectrum. Taking GSM as an example, it includes the following 4 systems: GSM850, GSM900, DCS1800 and PCS1900, wherein GSM850 and GSM900 are low-frequency power stages, the power level is 5-19, DCS1800 and PCS1900 are high-frequency power stages, the power level is 0-15, and the national standard of the switch spectrum is shown.
As shown in fig. 6, in some embodiments, the obtaining module 202 includes:
the obtaining sub-module 2021 is configured to obtain a first operating frequency of the wireless charger.
It should be noted that the first operating frequency of the wireless charging is a current operating frequency of the wireless charger during charging, and the first operating frequency is obtained through real-time detection of the detection circuit.
The switching module 2022 is configured to switch the wireless charger to a second operating frequency when the first operating frequency of the wireless charger interferes with the radio frequency indicator.
It should be noted that the second operating frequency is usually a preset operating frequency range, and may also be a preset frequency value, and the second operating frequency range of the wireless charger is not specifically limited in this embodiment of the application. However, in some embodiments, the ultra-low frequency of the switching spectrum is not easily filtered by the filter capacitor after interference is received. Therefore, the setting of the second operating frequency of the wireless charger needs to avoid the frequency band. Thus switching the wireless charger to the second operating frequency may prevent the switching spectrum from being disturbed.
Wherein the second operating frequency of the wireless charger is set to range from 3.2Mhz to 3.6 Mhz. The operating frequency of the existing wireless charger is generally 1.4 Mhz. When the frequency of the switching spectrum is also 1.4Mhz, the working frequency of the wireless charger interferes with the switching spectrum, and meanwhile, the ultralow frequency of 1.4Mhz is very difficult to filter through the filter capacitor, so that the second working frequency of the wireless charger is set to be 3.2Mhz to 3.6 Mhz. The switching spectrum can be prevented from being disturbed.
As can be seen from the above, in the processing apparatus for preventing radio frequency indicator interference provided in the embodiment of the present application, the obtaining module 201 is configured to obtain a radio frequency indicator of a power supply to a terminal power amplifier when wireless charging is performed; the obtaining module 202 is configured to adjust the operating frequency of the wireless charger when the operating frequency of the wireless charger interferes with the radio frequency indicator. When the wireless charger is charged, the working frequency of the wireless charger easily causes radio frequency index interference, so that when the working frequency of the wireless charger causes interference, the working frequency of the wireless charger is adjusted, and the radio frequency index of a power supply to a terminal power amplifier is avoided.
The embodiment of the application also provides the electronic equipment. The electronic device can be a smart phone, a tablet computer and the like. As shown in fig. 7, the electronic device 300 includes a processor 301, a memory 302, and a display screen 304. The processor 301 is coupled to the memory 302 and the display 304 respectively.
The processor 301 is a control center of the electronic device 300, connects various parts of the entire electronic device using various interfaces and lines, and performs various functions of the electronic device and processes data by running or calling a computer program stored in the memory 302 and calling data stored in the memory 302, thereby performing overall monitoring of the electronic device.
In this embodiment, the processor 301 in the electronic device 300 loads instructions corresponding to one or more processes of the computer program into the memory 302, and the processor 301 executes the computer program stored in the memory 302, thereby implementing various functions.
When the wireless charging is carried out, the radio frequency index of a power supply to a terminal power amplifier is obtained;
and when the working frequency of the wireless charger interferes with the radio frequency index, adjusting the working frequency of the wireless charger.
In some embodiments, with continued reference to fig. 8, electronic device 300 may further include: radio frequency circuit 303, display screen 304, control circuit 305, input unit 306, audio circuit 307, and power supply 309. The processor 301 is coupled to the rf circuit 303, the display 304, the control circuit 305, the input unit 306, the audio circuit 307, and the power supply 309, respectively.
The radio frequency circuit 303 is used for transceiving radio frequency signals to communicate with a network device or other electronic devices through wireless communication.
The display screen 304 may be used to display information entered by or provided to the user as well as various graphical user interfaces of the electronic device, which may be comprised of images, text, icons, video, and any combination thereof.
The control circuit 305 is electrically connected to the display screen 304, and is used for controlling the display screen 304 to display information.
The input unit 306 may be used to receive input numbers, character information, or user characteristic information (e.g., fingerprint), and to generate keyboard, mouse, joystick, optical, or trackball signal inputs related to user settings and function control. The input unit 306 may include a fingerprint recognition module.
The sensor 308 is used to collect external environmental information. The sensor 308 comprises a distance sensor. The distance sensor is used for detecting the distance between the display screen and an external object. In addition, the sensor 308 may also include one or more of an ambient light sensor, an acceleration sensor, a gyroscope, and the like.
The power supply 309 is used to power the various components of the electronic device 300. In some embodiments, the power source 309 may be logically coupled to the processor 301 through a power management system, such that functions to manage charging, discharging, and power consumption management are performed through the power management system.
Although not shown in fig. 8, the electronic device 300 may further include a camera, a bluetooth module, and the like, which are not described in detail herein.
As can be seen from the above, an embodiment of the present application provides an electronic device, where the electronic device performs the following steps: when the wireless charging is carried out, the radio frequency index of a power supply to a terminal power amplifier is obtained; and when the working frequency of the wireless charger interferes with the radio frequency index, adjusting the working frequency of the wireless charger. When the wireless charger is charged, the working frequency of the wireless charger easily causes radio frequency index interference, so that when the working frequency of the wireless charger causes interference, the working frequency of the wireless charger is adjusted, and the radio frequency index of a power supply to a terminal power amplifier is avoided.
An embodiment of the present application further provides a storage medium, where a computer program is stored in the storage medium, and when the computer program runs on a computer, the computer executes the information prompting method according to any of the above embodiments.
It should be noted that, all or part of the steps in the methods of the above embodiments may be implemented by hardware related to instructions of a computer program, which may be stored in a computer-readable storage medium, which may include, but is not limited to: read Only Memory (ROM), Random Access Memory (RAM), magnetic or optical disks, and the like.
The control method, the control device and the electronic device for preventing radio frequency indicator interference provided by the embodiment of the application are described in detail above. The principle and the implementation of the present application are explained herein by applying specific examples, and the above description of the embodiments is only used to help understand the method and the core idea of the present application; meanwhile, for those skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.
Claims (5)
1. A control method for preventing radio frequency index interference is characterized by comprising the following steps:
when a wireless charger wirelessly charges a power supply of a terminal, a wireless receiving coil of the terminal receives an electromagnetic wave signal transmitted by the wireless charger in a wireless receiving mode, the wireless receiving coil transmits the electromagnetic wave signal to a wireless conversion chip of the terminal, the wireless conversion chip converts the electromagnetic wave signal into direct current and transmits the direct current to a wireless charging management chip of the terminal, the wireless charging management chip charges the direct current for the power supply, and the power supply supplies power for a power amplifier of the terminal;
acquiring radio frequency indexes of the power supply to the power amplifier and power time information, wherein the radio frequency indexes comprise a switch spectrum;
determining a range of rising and falling edges of the switching spectrum based on the power time information;
judging whether the current mode of the power amplifier belongs to an ultralow frequency mode or not according to the range of the rising edge and the falling edge of the switch spectrum;
acquiring a first working frequency of the wireless charger;
and when the first working frequency is in the range of the rising edge and the falling edge of the switch spectrum and the current mode of the power amplifier belongs to the ultra-low frequency mode, switching the first working frequency to a second working frequency, wherein the second working frequency is out of the frequency range of the ultra-low frequency mode.
2. The method as claimed in claim 1, wherein the step of obtaining the rf indicator of the power supply to the terminal power amplifier and the power time information includes:
and acquiring a scanning interface formed by the switch spectrum and the power time information through a scanner of the comprehensive measuring instrument.
3. The control method of claim 1, wherein the second operating frequency of the wireless charger is set to range from 3.2Mhz to 3.6 Mhz.
4. A processing device for preventing radio frequency index interference is characterized in that when a wireless charger wirelessly charges a power supply of a terminal, a wireless receiving coil of the terminal receives an electromagnetic wave signal transmitted by the wireless charger in a wireless receiving mode, the wireless receiving coil transmits the electromagnetic wave signal to a wireless conversion chip of the terminal, the wireless conversion chip converts the electromagnetic wave signal into direct current and transmits the direct current to a wireless charging management chip of the terminal, the wireless charging management chip charges the power supply with the direct current, and the power supply supplies power to a power amplifier of the terminal;
the processing device for preventing the radio frequency index interference comprises:
the acquisition module is used for acquiring a radio frequency index and power time information of the power supply to the power amplifier, wherein the radio frequency index comprises a switch spectrum;
the determining module is used for determining the ranges of the rising edge and the falling edge of the switch spectrum based on the power time information, and judging whether the current mode of the power amplifier belongs to the ultralow frequency mode according to the ranges of the rising edge and the falling edge of the switch spectrum;
the acquisition submodule is used for acquiring a first working frequency of the wireless charger;
and the switching module is used for switching the first working frequency to a second working frequency when the first working frequency is in the range of the rising edge and the falling edge of the switch spectrum and the current mode of the power amplifier belongs to the ultralow frequency mode, wherein the second working frequency is out of the frequency range of the ultralow frequency mode.
5. An electronic device, characterized in that it comprises a processing device for preventing radio frequency indicator interference according to claim 4.
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| CN112821517B (en) * | 2021-02-23 | 2024-05-10 | 维沃移动通信有限公司 | Electronic device and control method of electronic device |
| CN113163145B (en) * | 2021-03-22 | 2023-10-31 | 维沃移动通信有限公司 | Clock frequency switching method, clock frequency switching device, electronic equipment and readable storage medium |
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