CN109475005B - Electromagnetic interference control method and related device - Google Patents
Electromagnetic interference control method and related device Download PDFInfo
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- CN109475005B CN109475005B CN201811487355.2A CN201811487355A CN109475005B CN 109475005 B CN109475005 B CN 109475005B CN 201811487355 A CN201811487355 A CN 201811487355A CN 109475005 B CN109475005 B CN 109475005B
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
- H04W72/541—Allocation or scheduling criteria for wireless resources based on quality criteria using the level of interference
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- H—ELECTRICITY
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Abstract
The embodiment of the application discloses an electromagnetic interference control method and a related device, wherein the method comprises the following steps: acquiring a frequency data packet of a Bluetooth module; determining that the Bluetooth module and a display screen generate electromagnetic interference according to the frequency data packet, wherein the Bluetooth module uses a first Bluetooth channel to transmit data with Bluetooth equipment; and switching the first Bluetooth channel into a second Bluetooth channel to reduce or avoid the electromagnetic interference, and sending a first message to the Bluetooth device, wherein the first message comprises the second Bluetooth channel. The embodiment of the application is beneficial to reducing or avoiding the electromagnetic interference between the Bluetooth module and the display screen.
Description
Technical Field
The present application relates to the field of electronic device technologies, and in particular, to a method and a related apparatus for controlling electromagnetic interference.
Background
With the development of mobile communication technology, the demand of a user for communication with electronic devices such as a mobile phone is increasing, and when data transmission is performed on the electronic devices on the market at present, data is generally transmitted in a cellular mobile network communication mode or a Wi-Fi communication mode, so that the full-screen mobile phone faces the problem of radio frequency interference.
When the display screen of the electronic device and the bluetooth module operate simultaneously, the operating frequency of some channel frequency bands of the bluetooth module may generate electromagnetic interference to the display screen, which may result in the reduction of the display performance of the display screen or the reduction of the bluetooth communication quality.
Disclosure of Invention
The embodiment of the application provides an electromagnetic interference control method and a related device, which aim to reduce or avoid electromagnetic interference between a Bluetooth module and a display screen.
In a first aspect, an embodiment of the present application provides an electromagnetic interference control method, which is applied to an electronic device, and the method includes:
acquiring a frequency data packet of a Bluetooth module;
determining that the Bluetooth module and a display screen generate electromagnetic interference according to the frequency data packet, wherein the Bluetooth module uses a first Bluetooth channel to transmit data with Bluetooth equipment;
and switching the first Bluetooth channel into a second Bluetooth channel to reduce or avoid the electromagnetic interference, and sending a first message to the Bluetooth device, wherein the first message comprises a channel identifier of the second Bluetooth channel.
In a second aspect, an embodiment of the present application provides an electromagnetic interference control apparatus, which is applied to an electronic device, and includes a processing unit and a communication unit, where the processing unit is configured to obtain a frequency data packet of a bluetooth module; the Bluetooth module is used for determining that the Bluetooth module and the display screen generate electromagnetic interference according to the frequency data packet, and the Bluetooth module uses a first Bluetooth channel to perform data transmission with Bluetooth equipment; and the communication unit is used for switching the first Bluetooth channel into a second Bluetooth channel so as to reduce or avoid the electromagnetic interference and sending a first message to the Bluetooth equipment through the communication unit, wherein the first message comprises a channel identifier of the second Bluetooth channel.
In a third aspect, an embodiment of the present application provides an electronic device, including a processor, a memory, a communication interface, and one or more programs, where the one or more programs are stored in the memory and configured to be executed by the processor, and the program includes instructions for executing steps in any method of the first aspect of the embodiment of the present application.
In a fourth aspect, the present application provides a computer-readable storage medium, where the computer-readable storage medium stores a computer program for electronic data exchange, where the computer program makes a computer perform part or all of the steps described in any one of the methods of the first aspect of the present application.
In a fifth aspect, the present application provides a computer program product, wherein the computer program product includes a non-transitory computer-readable storage medium storing a computer program, and the computer program is operable to cause a computer to perform some or all of the steps as described in any one of the methods of the first aspect of the embodiments of the present application. The computer program product may be a software installation package.
It can be seen that, in this embodiment of the application, an electronic device obtains a frequency data packet of a bluetooth module, and determines that electromagnetic interference occurs between the bluetooth module and a display screen according to the frequency data packet, where the bluetooth module uses a first bluetooth channel and a bluetooth device to perform data transmission, and finally switches the first bluetooth channel to a second bluetooth channel to reduce or avoid the electromagnetic interference, and sends a first message to the bluetooth device, where the first message includes a channel identifier of the second bluetooth channel. It is thus clear that the electronic equipment of this application embodiment can reduce or avoid this electromagnetic interference through switching the bluetooth channel when detecting the emergence electromagnetic interference between bluetooth module and the display screen, can not influence the display performance of display screen simultaneously, is favorable to improving the rationality that electronic equipment carries out the electromagnetic interference control.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an electronic device according to an embodiment of the present disclosure;
fig. 2 is a schematic flowchart of an electromagnetic interference control method according to an embodiment of the present application;
FIG. 3 is a schematic flow chart illustrating another EMI control method according to an embodiment of the present application;
FIG. 4 is a schematic flow chart illustrating another EMI control method provided by an embodiment of the present application;
fig. 5 is a schematic structural diagram of another electronic device provided in an embodiment of the present application;
fig. 6 is a block diagram of functional units of an electromagnetic interference control apparatus according to an embodiment of the present application.
Detailed Description
In order to make the technical solutions of the present application better understood, 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, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The terms "first," "second," and the like in the description and claims of the present application and in the above-described drawings are used for distinguishing between different objects and not for describing a particular order. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
The electronic device according to the embodiments of the present invention may include various handheld devices, vehicle-mounted devices, wearable devices, computing devices or other processing devices connected to a wireless modem, and various forms of User Equipment (UE), Mobile Stations (MS), terminal devices (terminal device), and so on. For convenience of description, the above-mentioned devices are collectively referred to as electronic devices.
As shown in fig. 1, an electronic device 100 according to an embodiment of the present disclosure includes an application processor AP110, a bluetooth module 120, a display 130, and a memory 140, where the application processor AP110 is connected to the bluetooth module 120, the display 130, and the memory 140.
The electronic device 100 performs data transmission with a bluetooth device through a bluetooth channel between the bluetooth module 120 and the bluetooth device, where the bluetooth channel includes multiple channels with different frequencies, the bluetooth module 120 may perform data transmission with the bluetooth device through any one bluetooth channel, and the bluetooth device may be a device of the same type as the electronic device 100 or a device of a different type from the electronic device, which is not limited herein.
The application processor AP110 is a control center of the electronic device, connects various parts of the whole electronic device by using various interfaces and lines, and performs various functions and processes data of the electronic device by running or executing software programs and/or modules stored in the memory 140 and calling data stored in the memory 140, so as to perform overall monitoring on the electronic device, wherein the application processor AP110 mainly processes an operating system, a user interface, an application program, and the like.
The memory 140 may be used to store software programs and modules, and the application processor AP110 executes various functional applications and data processing of the electronic device by running the software programs and modules stored in the memory 140. The memory 140 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function, and the like; the storage data area may store data created according to use of the electronic device, and the like. Further, the memory 140 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device. The Memory 140 may be, for example, a Random Access Memory (RAM), a flash Memory, a Read Only Memory (ROM), an Erasable Programmable Read Only Memory (EPROM), an Electrically Erasable Programmable Read Only Memory (EEPROM), a register, a hard disk, a removable hard disk, a compact disc Read Only Memory (CD-ROM), or any other form of storage medium known in the art.
An embodiment of the present application provides an electromagnetic interference control method, which is described in detail below with reference to the accompanying drawings.
Referring to fig. 2, fig. 2 is a schematic flowchart illustrating an electromagnetic interference control method according to an embodiment of the present application, applied to the electronic device shown in fig. 1, where as shown in the drawing, the method includes:
s201, the electronic equipment acquires a frequency data packet of the Bluetooth module.
The specific implementation manner of the electronic device acquiring the frequency data packet of the bluetooth module is as follows: the bluetooth module sends a frequency data packet to the application processor AP, that is, the electronic device obtains the frequency data packet sent by the bluetooth module through the application processor AP.
The Bluetooth module is a chip basic circuit set integrating a Bluetooth function and used for wireless network communication, and the frequency data packet at least comprises a Bluetooth channel used when the Bluetooth module is transmitted with Bluetooth equipment and a frequency corresponding to the Bluetooth channel.
S202, the electronic equipment determines that the Bluetooth module and the display screen generate electromagnetic interference according to the frequency data packet, and the Bluetooth module uses a first Bluetooth channel to transmit data with the Bluetooth equipment.
The electromagnetic interference refers to that when the bluetooth module and the display screen work simultaneously, the frequency of a Mobile Industry Processor Interface (MIPI) started by the display screen generates interference on the frequency of a bluetooth channel when the bluetooth module and the bluetooth device communicate.
The specific implementation manner of determining, by the electronic device, that the bluetooth module and the display screen generate electromagnetic interference according to the frequency data packet may be various, for example, whether electromagnetic interference occurs may be determined according to a difference between a frequency in the frequency data packet and an MIPI frequency used by the display screen, or whether interference occurs between the bluetooth module and the display screen is determined by determining whether a frequency list in which interference occurs to the MIPI frequency includes the frequency in the frequency data packet in a static table look-up manner, which is not limited herein.
The bluetooth device may be a plurality of devices, that is, the bluetooth module of the electronic device performs data communication with the plurality of bluetooth devices at the same time, so the first bluetooth channel may also be a plurality of channels, and meanwhile, the frequency data packet may also include frequencies corresponding to the plurality of first bluetooth channels.
S203, the electronic device switches the first Bluetooth channel to a second Bluetooth channel to reduce or avoid the electromagnetic interference, and sends a first message to the Bluetooth device, wherein the first message includes a channel identifier of the second Bluetooth channel.
When receiving a first message, the Bluetooth device switches the first Bluetooth channel to a second Bluetooth channel according to a channel identifier of the second Bluetooth channel in the first message, and transmits information with a Bluetooth module of the electronic device.
The specific implementation manner of switching the first bluetooth channel to the second bluetooth channel by the electronic device to reduce or avoid the electromagnetic interference and sending the first message to the bluetooth device may be that when the processor AP determines the second bluetooth channel, the second bluetooth channel identifier is sent to the bluetooth module and the bluetooth device, and then the bluetooth module and the bluetooth device both switch the first bluetooth channel to the second bluetooth channel and continue data transmission.
It can be seen that, in this embodiment of the application, an electronic device obtains a frequency data packet of a bluetooth module, and determines that electromagnetic interference occurs between the bluetooth module and a display screen according to the frequency data packet, where the bluetooth module uses a first bluetooth channel and a bluetooth device to perform data transmission, and finally switches the first bluetooth channel to a second bluetooth channel to reduce or avoid the electromagnetic interference, and sends a first message to the bluetooth device, where the first message includes a channel identifier of the second bluetooth channel. It is thus clear that the electronic equipment of this application embodiment can reduce or avoid this electromagnetic interference through switching the bluetooth channel when detecting the emergence electromagnetic interference between bluetooth module and the display screen, can not influence the display performance of display screen simultaneously, is favorable to improving the rationality that electronic equipment carries out the electromagnetic interference control.
In one possible example, the display screen enabled Mobile Industry Processor Interface (MIPI) corresponds to a first set of frequencies including the display screen enabled MIPI frequency, a first predetermined number of divisions of the MIPI frequency, and a second predetermined number of multiples of the MIPI frequency.
The MIPI frequency of the display screen can support different frequencies or frequency bands, such as 2.47GHz frequency and 2.475GHz frequency, according to the chip capability.
The first preset number and the second preset number may be empirical values, and are preset in the electronic device by a technical developer, where the first preset number may be 1, so that the frequency division may be a halving frequency, the second preset number may also be 1, so that the frequency multiplication may be a doubling frequency, and no limitation is made herein.
It can be seen that, in this example, the first frequency set of the display screen is prestored in the electronic device, and the first frequency set includes not only the MIPI frequency but also a certain number of frequency division and frequency multiplication, which is beneficial to improving the comprehensiveness of electromagnetic interference determination and avoiding electromagnetic interference to the greatest extent.
In one possible example, the determining that the bluetooth module and the display screen generate electromagnetic interference according to the frequency data packet includes:
determining a first Bluetooth channel of the Bluetooth module according to the frequency data packet, wherein the first Bluetooth channel corresponds to a second frequency;
when the difference value between the second frequency and any one of the first frequency set is smaller than or equal to a first preset threshold value, the fact that the Bluetooth module and the display screen generate electromagnetic interference is determined.
The first preset threshold is an empirical value, and may be preset in the electronic device according to data obtained by experimental verification by a technical developer, for example, the first preset threshold may be 0.25GHz, 0.3GHz, and the like, which is not limited herein.
It can be seen that, in this example, when the difference between the second frequency corresponding to the first bluetooth channel used by the bluetooth module and any one of the frequencies in the first frequency set is less than or equal to the first preset threshold, the electronic device determines that the bluetooth module and the display screen generate electromagnetic interference, which is beneficial to improving the accuracy of determining the electromagnetic interference.
In one possible example, the determining that the bluetooth module and the display screen generate electromagnetic interference according to the frequency data packet includes:
determining a first Bluetooth channel of the Bluetooth module according to the frequency data packet;
inquiring a preset mapping relation by taking the first Bluetooth channel as an inquiry identifier to obtain the interference level of any frequency in the first frequency set to the first Bluetooth channel, wherein the mapping relation comprises the corresponding relation between any frequency in the first frequency set and the interference levels of a plurality of Bluetooth channels;
and determining that the Bluetooth module and the display screen generate electromagnetic interference according to the interference level.
The electronic device prestores an interference channel list corresponding to the MIPI frequency of the display screen, that is, the mapping relationship, where the mapping relationship at least includes an interference level of any one frequency in the first frequency set to each bluetooth channel, and the electronic device may query the interference channel list through the first bluetooth channel to determine an interference level of any one frequency to the first bluetooth channel.
The specific implementation manner of determining that the bluetooth module and the display screen generate the electromagnetic interference according to the interference level may be that when the interference level is greater than or equal to a first preset interference level, the bluetooth module and the display screen generate the electromagnetic interference, or when the interference level is a second preset interference level, the bluetooth module and the display screen generate the electromagnetic interference, which is not limited herein.
As can be seen, in this example, the electronic device queries the mapping relationship according to the first bluetooth channel, and determines that the bluetooth module and the display screen generate electromagnetic interference according to the interference level of any one frequency in the first frequency set to the first bluetooth channel in the query result, which is beneficial to improving convenience of determining the electromagnetic interference.
In one possible example, before the switching the first bluetooth channel to the second bluetooth channel to reduce or avoid the electromagnetic interference, the method further comprises:
acquiring the type of the Bluetooth equipment;
and determining the second Bluetooth channel according to the type of the Bluetooth equipment.
The types of the bluetooth devices at least include a first preset type and a second preset type, where the first preset type is a controlled device, that is, a device that can directly determine a second bluetooth channel through the electronic device, for example, a bluetooth speaker, and the second preset type is a non-controlled device, that is, a device that needs to determine the second bluetooth channel through the electronic device and the bluetooth device, for example, a smart phone, and the like, and therefore, different types of the bluetooth devices correspond to different control methods of the second bluetooth channel, which is not limited herein.
Therefore, in this example, before the electronic device switches the bluetooth channel, the second bluetooth channel is determined according to the type of the bluetooth device, and different types correspond to different methods for determining the bluetooth channel, which is beneficial to improving the accuracy and effectiveness of electronic interference control.
In this possible example, the determining the second bluetooth channel according to the type of the bluetooth device includes:
when the type of the Bluetooth equipment is a first preset type, determining a third frequency according to the first frequency set;
and determining the second Bluetooth channel corresponding to the third frequency.
The specific implementation manner of determining the third frequency according to the first frequency set may be various, for example, the difference between the determined third frequency and any one of the frequencies in the first frequency set may be greater than the first preset threshold, or the third frequency may be determined by querying the mapping relationship, where the interference level of each frequency in the first frequency set to the second bluetooth channel corresponding to the third frequency is less than a third preset interference level, and the like, which is not limited herein.
Therefore, in this example, when the bluetooth device is of the first preset type, the electronic device directly determines the second bluetooth channel according to the first frequency set, which is beneficial to improving convenience of electromagnetic interference control.
In one possible example, the determining the second bluetooth channel according to the type of the bluetooth device includes:
when the type of the Bluetooth equipment is a second preset type, acquiring a second frequency set corresponding to MIPI frequency started by a display screen of the Bluetooth equipment;
determining a first reference Bluetooth channel set according to the second frequency set;
determining a second reference Bluetooth channel set according to the first frequency set;
determining the second Bluetooth channel according to the first reference Bluetooth channel set and the second reference Bluetooth channel set.
The second frequency set is MIPI frequency started by a display screen of the Bluetooth device and is the same as the first frequency set.
The specific implementation manner of determining the first reference bluetooth channel set according to the second frequency set may be the same as that of determining the second reference bluetooth channel set according to the first frequency set, and the first reference bluetooth channel set and the second reference bluetooth channel set are obtained by determining a plurality of bluetooth channels that do not generate electromagnetic interference with the first frequency set of the display screen of the electronic device or the second frequency set of the display screen of the bluetooth device, as well as the above implementation manner of determining the second bluetooth channel according to the first frequency set.
The specific implementation manner of determining the second bluetooth channel according to the first reference bluetooth channel set and the second reference bluetooth channel set may be various, for example, a bluetooth channel with the same channel frequency in the first reference bluetooth channel and the second reference bluetooth channel may be determined as the second bluetooth channel, or any one of two bluetooth channels with a channel frequency difference smaller than a second preset threshold may be determined as the second bluetooth channel, which is not limited herein.
It can be seen that, in this example, when the bluetooth device is of the second preset type, the determined second bluetooth channel is a bluetooth channel that does not interfere with the frequency of the display screen of the bluetooth device and the frequency of the display screen of the electronic device at the same time, and electromagnetic interference of the electronic device and electromagnetic interference of the bluetooth device are reduced or avoided at the same time, which is beneficial to improving accuracy and rationality of electromagnetic interference control.
Referring to fig. 3, fig. 3 is a schematic flowchart of another electromagnetic interference control method provided in the embodiment of the present application, and the method is applied to an electronic device, where as shown in the figure, the electromagnetic interference control method includes:
s301, the electronic equipment acquires a frequency data packet of the Bluetooth module.
S302, the electronic equipment determines a first Bluetooth channel of the Bluetooth module according to the frequency data packet, wherein the first Bluetooth channel corresponds to a second frequency.
S303, when the difference value between the second frequency and any one frequency in the first frequency set is smaller than or equal to a first preset threshold value, the electronic equipment determines that the Bluetooth module and the display screen generate electromagnetic interference.
The display screen enabled mobile industry processor interface MIPI corresponds to a first frequency set, and the first frequency set comprises the display screen enabled MIPI frequency, a first preset number of frequency division of the MIPI frequency and a second preset number of frequency multiplication of the MIPI frequency.
S304, the electronic equipment acquires the type of the Bluetooth equipment.
S305, when the type of the Bluetooth device is a first preset type, the electronic device determines a third frequency according to the first frequency set.
S306, the electronic equipment determines a second Bluetooth channel corresponding to the third frequency.
S307, the electronic device switches the first Bluetooth channel to the second Bluetooth channel to reduce or avoid the electromagnetic interference, and sends a first message to the Bluetooth device, wherein the first message includes a channel identifier of the second Bluetooth channel.
It can be seen that, in this embodiment of the application, an electronic device obtains a frequency data packet of a bluetooth module, and determines that electromagnetic interference occurs between the bluetooth module and a display screen according to the frequency data packet, where the bluetooth module uses a first bluetooth channel and a bluetooth device to perform data transmission, and finally switches the first bluetooth channel to a second bluetooth channel to reduce or avoid the electromagnetic interference, and sends a first message to the bluetooth device, where the first message includes a channel identifier of the second bluetooth channel. It is thus clear that the electronic equipment of this application embodiment can reduce or avoid this electromagnetic interference through switching the bluetooth channel when detecting the emergence electromagnetic interference between bluetooth module and the display screen, can not influence the display performance of display screen simultaneously, is favorable to improving the rationality that electronic equipment carries out the electromagnetic interference control.
In addition, when the difference value between the second frequency corresponding to the first bluetooth channel used by the bluetooth module and any one frequency in the first frequency set is smaller than or equal to the first preset threshold value, the electronic device determines that the bluetooth module and the display screen generate electromagnetic interference, and the accuracy of determining the electromagnetic interference is improved.
In addition, before the electronic equipment switches the Bluetooth channels, the second Bluetooth channel is determined according to the type of the Bluetooth equipment, different types correspond to different methods for determining the Bluetooth channels, accuracy and effectiveness of electronic interference control are improved, and when the Bluetooth equipment is of a first preset type, the second Bluetooth channel is determined directly according to the first frequency set, so that convenience of electromagnetic interference control is improved.
Referring to fig. 4, fig. 4 is a schematic flowchart of an emi control method according to an embodiment of the present disclosure, applied to the electronic device shown in fig. 1, where as shown in the diagram, the emi control method includes:
s401, the electronic equipment acquires a frequency data packet of the Bluetooth module.
S402, the electronic equipment determines a first Bluetooth channel of the Bluetooth module according to the frequency data packet.
And S403, the electronic device acquires the interference level of any frequency in the first frequency set to the first Bluetooth channel by using the first Bluetooth channel as an inquiry identifier, and the mapping relationship includes the corresponding relationship between any frequency in the first frequency set and the interference levels of the plurality of Bluetooth channels.
The display screen enabled mobile industry processor interface MIPI corresponds to a first frequency set, and the first frequency set comprises the display screen enabled MIPI frequency, a first preset number of frequency division of the MIPI frequency and a second preset number of frequency multiplication of the MIPI frequency.
S404, the electronic equipment determines that the Bluetooth module and the display screen generate electromagnetic interference according to the interference level.
S405, the electronic equipment acquires the type of the Bluetooth equipment.
S406, when the type of the Bluetooth device is a second preset type, the electronic device acquires a second frequency set corresponding to the MIPI frequency started by the display screen of the Bluetooth device.
S407, the electronic device determines a first reference Bluetooth channel set according to the second frequency set.
S408, the electronic device determines a second reference Bluetooth channel set according to the first frequency set.
S409, the electronic equipment determines a second Bluetooth channel according to the first reference Bluetooth channel set and the second reference Bluetooth channel set.
S410, the electronic equipment switches the first Bluetooth channel to the second Bluetooth channel to reduce or avoid the electromagnetic interference, and sends a first message to the Bluetooth equipment, wherein the first message comprises a channel identifier of the second Bluetooth channel.
It can be seen that, in this embodiment of the application, an electronic device obtains a frequency data packet of a bluetooth module, and determines that electromagnetic interference occurs between the bluetooth module and a display screen according to the frequency data packet, where the bluetooth module uses a first bluetooth channel and a bluetooth device to perform data transmission, and finally switches the first bluetooth channel to a second bluetooth channel to reduce or avoid the electromagnetic interference, and sends a first message to the bluetooth device, where the first message includes a channel identifier of the second bluetooth channel. It is thus clear that the electronic equipment of this application embodiment can reduce or avoid this electromagnetic interference through switching the bluetooth channel when detecting the emergence electromagnetic interference between bluetooth module and the display screen, can not influence the display performance of display screen simultaneously, is favorable to improving the rationality that electronic equipment carries out the electromagnetic interference control.
In addition, the electronic equipment inquires the mapping relation according to the first Bluetooth channel, and determines that the Bluetooth module and the display screen generate electromagnetic interference through the interference level of any frequency in the first frequency set to the first Bluetooth channel in the inquiry result, so that the convenience of determining the electromagnetic interference is improved.
In addition, before the electronic equipment switches the Bluetooth channels, the second Bluetooth channel is determined according to the type of the Bluetooth equipment, different types correspond to different methods for determining the Bluetooth channels, and therefore accuracy and effectiveness of electronic interference control are improved.
In accordance with the embodiments shown in fig. 2, fig. 3, and fig. 4, please refer to fig. 5, and fig. 5 is a schematic structural diagram of an electronic device 500 according to an embodiment of the present application, as shown in the figure, the electronic device 500 includes an application processor 510, a memory 520, a communication interface 530, and one or more programs 521, where the one or more programs 521 are stored in the memory 520 and configured to be executed by the application processor 510, and the one or more programs 521 include instructions for performing the following steps;
acquiring a frequency data packet of a Bluetooth module;
determining that the Bluetooth module and a display screen generate electromagnetic interference according to the frequency data packet, wherein the Bluetooth module uses a first Bluetooth channel to transmit data with Bluetooth equipment;
and switching the first Bluetooth channel into a second Bluetooth channel to reduce or avoid the electromagnetic interference, and sending a first message to the Bluetooth device, wherein the first message comprises a channel identifier of the second Bluetooth channel.
It can be seen that, in this embodiment of the application, an electronic device obtains a frequency data packet of a bluetooth module, and determines that electromagnetic interference occurs between the bluetooth module and a display screen according to the frequency data packet, where the bluetooth module uses a first bluetooth channel and a bluetooth device to perform data transmission, and finally switches the first bluetooth channel to a second bluetooth channel to reduce or avoid the electromagnetic interference, and sends a first message to the bluetooth device, where the first message includes a channel identifier of the second bluetooth channel. It is thus clear that the electronic equipment of this application embodiment can reduce or avoid this electromagnetic interference through switching the bluetooth channel when detecting the emergence electromagnetic interference between bluetooth module and the display screen, can not influence the display performance of display screen simultaneously, is favorable to improving the rationality that electronic equipment carries out the electromagnetic interference control.
In one possible example, the display screen enabled Mobile Industry Processor Interface (MIPI) corresponds to a first set of frequencies including the display screen enabled MIPI frequency, a first predetermined number of divisions of the MIPI frequency, and a second predetermined number of multiples of the MIPI frequency.
In one possible example, in the aspect of determining that the bluetooth module and the display screen generate electromagnetic interference according to the frequency data packet, the instructions in the program 521 are specifically configured to perform the following operations: determining a first Bluetooth channel of the Bluetooth module according to the frequency data packet, wherein the first Bluetooth channel corresponds to a second frequency; and the Bluetooth module is used for determining that the Bluetooth module and the display screen generate electromagnetic interference when detecting that the difference value between the second frequency and any one frequency in the first frequency set is smaller than or equal to a first preset threshold value.
In one possible example, in the aspect of determining that the bluetooth module and the display screen generate electromagnetic interference according to the frequency data packet, the instructions in the program 521 are specifically configured to perform the following operations: determining a first Bluetooth channel of the Bluetooth module according to the frequency data packet; the mapping relation comprises a corresponding relation between any one frequency in the first frequency set and the interference levels of a plurality of Bluetooth channels; and the Bluetooth module is used for determining the electromagnetic interference between the Bluetooth module and the display screen according to the interference level.
In one possible example, the one or more programs 521 further include instructions for performing the steps of: acquiring the type of the Bluetooth equipment before switching the first Bluetooth channel into a second Bluetooth channel to reduce or avoid the electromagnetic interference; and for determining the second bluetooth channel in dependence upon the type of the bluetooth device.
In this possible example, the instructions in the program 521 are specifically configured to, in said determining the second bluetooth channel according to the type of the bluetooth device: when the type of the Bluetooth equipment is a first preset type, determining a third frequency according to the first frequency set; and the second Bluetooth channel corresponding to the third frequency is determined.
In one possible example, in the aspect of determining the second bluetooth channel according to the type of the bluetooth device, the instructions in the program 521 are specifically configured to: when the type of the Bluetooth equipment is a second preset type, acquiring a second frequency set corresponding to MIPI frequency started by a display screen of the Bluetooth equipment; and means for determining a first set of reference bluetooth channels from the second set of frequencies; and means for determining a second set of reference bluetooth channels from the first set of frequencies; and means for determining the second bluetooth channel from the first reference set of bluetooth channels and the second reference set of bluetooth channels.
It is understood that the electronic device comprises corresponding hardware structures and/or software modules for performing the respective functions in order to realize the above-mentioned functions. Those of skill in the art will readily appreciate that the present application is capable of hardware or a combination of hardware and computer software implementing the various illustrative elements and algorithm steps described in connection with the embodiments provided herein. Whether a function is performed as hardware or computer software drives hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
In the embodiment of the present application, the electronic device may be divided into the functional units according to the method example, for example, each functional unit may be divided corresponding to each function, or two or more functions may be integrated into one processing unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit. It should be noted that the division of the unit in the embodiment of the present application is schematic, and is only a logic function division, and there may be another division manner in actual implementation.
Fig. 6 is a block diagram showing functional units of an electromagnetic interference control apparatus 600 according to an embodiment of the present application. The electromagnetic interference control apparatus 600 is applied to an electronic device, and includes a processing unit 601 and a communication unit 602, wherein,
the processing unit 601 is configured to obtain a frequency data packet of the bluetooth module; the Bluetooth module is used for determining that the Bluetooth module and the display screen generate electromagnetic interference according to the frequency data packet, and the Bluetooth module uses a first Bluetooth channel to perform data transmission with Bluetooth equipment; and is configured to switch the first bluetooth channel to a second bluetooth channel to reduce or avoid the electromagnetic interference, and send a first message to the bluetooth device through the communication unit 602, where the first message includes a channel identifier of the second bluetooth channel.
The control device 600 may further include a storage unit 603 for storing program codes and data of the electronic apparatus. The processing unit 601 may be a processor, the communication unit 602 may be a touch display screen or a transceiver, and the storage unit 603 may be a memory.
It can be seen that, in this embodiment of the application, an electronic device obtains a frequency data packet of a bluetooth module, and determines that electromagnetic interference occurs between the bluetooth module and a display screen according to the frequency data packet, where the bluetooth module uses a first bluetooth channel and a bluetooth device to perform data transmission, and finally switches the first bluetooth channel to a second bluetooth channel to reduce or avoid the electromagnetic interference, and sends a first message to the bluetooth device, where the first message includes a channel identifier of the second bluetooth channel. It is thus clear that the electronic equipment of this application embodiment can reduce or avoid this electromagnetic interference through switching the bluetooth channel when detecting the emergence electromagnetic interference between bluetooth module and the display screen, can not influence the display performance of display screen simultaneously, is favorable to improving the rationality that electronic equipment carries out the electromagnetic interference control.
In one possible example, the display screen enabled Mobile Industry Processor Interface (MIPI) corresponds to a first set of frequencies including the display screen enabled MIPI frequency, a first predetermined number of divisions of the MIPI frequency, and a second predetermined number of multiples of the MIPI frequency.
In a possible example, in the aspect of determining that the bluetooth module and the display screen generate electromagnetic interference according to the frequency data packet, the processing unit 601 is specifically configured to: determining a first Bluetooth channel of the Bluetooth module according to the frequency data packet, wherein the first Bluetooth channel corresponds to a second frequency; and the Bluetooth module is used for determining that the Bluetooth module and the display screen generate electromagnetic interference when detecting that the difference value between the second frequency and any one frequency in the first frequency set is smaller than or equal to a first preset threshold value.
In a possible example, in the aspect of determining that the bluetooth module and the display screen generate electromagnetic interference according to the frequency data packet, the processing unit 601 is specifically configured to: determining a first Bluetooth channel of the Bluetooth module according to the frequency data packet; the mapping relation comprises a corresponding relation between any one frequency in the first frequency set and the interference levels of a plurality of Bluetooth channels; and the Bluetooth module is used for determining the electromagnetic interference between the Bluetooth module and the display screen according to the interference level.
In one possible example, before the switching the first bluetooth channel to the second bluetooth channel to reduce or avoid the electromagnetic interference, the processing unit 601 is further configured to: acquiring the type of the Bluetooth equipment; and for determining the second bluetooth channel in dependence upon the type of the bluetooth device.
In this possible example, in terms of determining the second bluetooth channel according to the type of the bluetooth device, the processing unit 601 is specifically configured to: when the type of the Bluetooth equipment is a first preset type, determining a third frequency according to the first frequency set; and the second Bluetooth channel corresponding to the third frequency is determined.
In one possible example, in terms of determining the second bluetooth channel according to the type of the bluetooth device, the processing unit 601 is specifically configured to: when the type of the bluetooth device is a second preset type, acquiring a second frequency set corresponding to an MIPI frequency enabled by a display screen of the bluetooth device through the communication unit 602; determining a first reference Bluetooth channel set according to the second frequency set; and means for determining a second set of reference bluetooth channels from the first set of frequencies; and means for determining the second bluetooth channel from the first reference set of bluetooth channels and the second reference set of bluetooth channels.
Embodiments of the present application also provide a computer storage medium, where the computer storage medium stores a computer program for electronic data exchange, the computer program enabling a computer to execute part or all of the steps of any one of the methods described in the above method embodiments, and the computer includes an electronic device.
Embodiments of the present application also provide a computer program product comprising a non-transitory computer readable storage medium storing a computer program operable to cause a computer to perform some or all of the steps of any of the methods as described in the above method embodiments. The computer program product may be a software installation package, the computer comprising an electronic device.
It should be noted that, for simplicity of description, the above-mentioned method embodiments are described as a series of acts or combination of acts, but those skilled in the art will recognize that the present application is not limited by the order of acts described, as some steps may occur in other orders or concurrently depending on the application. Further, those skilled in the art should also appreciate that the embodiments described in the specification are preferred embodiments and that the acts and modules referred to are not necessarily required in this application.
In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus may be implemented in other manners. For example, the above-described embodiments of the apparatus are merely illustrative, and for example, the above-described division of the units is only one type of division of logical functions, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection of some interfaces, devices or units, and may be an electric or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit may be stored in a computer readable memory if it is implemented in the form of a software functional unit and sold or used as a stand-alone product. Based on such understanding, the technical solution of the present application may be substantially implemented or a part of or all or part of the technical solution contributing to the prior art may be embodied in the form of a software product stored in a memory, and including several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the above-mentioned method of the embodiments of the present application. And the aforementioned memory comprises: various media capable of storing program codes, such as a usb disk, a read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic disk, or an optical disk.
Those skilled in the art will appreciate that all or part of the steps in the methods of the above embodiments may be implemented by associated hardware instructed by a program, which may be stored in a computer-readable memory, which may include: flash Memory disks, read-Only memories (ROMs), Random Access Memories (RAMs), magnetic or optical disks, and the like.
The foregoing detailed description of the embodiments of the present application has been presented to illustrate the principles and implementations of the present application, and the above description of the embodiments is only provided to help understand the method and the core concept of the present application; meanwhile, for a person 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 (7)
1. An electromagnetic interference control method, applied to an electronic device, the method comprising:
acquiring a frequency data packet of a Bluetooth module, wherein the frequency data packet at least comprises a Bluetooth channel used when the Bluetooth module transmits with Bluetooth equipment and a frequency corresponding to the Bluetooth channel;
determining that the Bluetooth module and a display screen generate electromagnetic interference according to the frequency data packet, wherein the Bluetooth module uses a first Bluetooth channel to transmit data with Bluetooth equipment;
acquiring the type of the Bluetooth equipment;
determining a second Bluetooth channel according to the type of the Bluetooth equipment;
switching the first Bluetooth channel into a second Bluetooth channel to reduce or avoid the electromagnetic interference, and sending a first message to the Bluetooth device, wherein the first message comprises a channel identifier of the second Bluetooth channel;
the mobile industry processor interface MIPI enabled by the display screen corresponds to a first frequency set, and the first frequency set comprises MIPI frequency enabled by the display screen, frequency division of a first preset number of the MIPI frequency and frequency multiplication of a second preset number of the MIPI frequency;
the determining the second bluetooth channel according to the type of the bluetooth device includes:
when the type of the Bluetooth equipment is a second preset type comprising a display screen, acquiring a second frequency set corresponding to MIPI (Mobile industry processor interface) frequency started by the display screen of the Bluetooth equipment, wherein the second preset type is a non-controlled equipment type comprising a mobile phone;
determining a first reference Bluetooth channel set according to the second frequency set;
determining a second reference Bluetooth channel set according to the first frequency set;
determining the second Bluetooth channel according to the first reference Bluetooth channel set and the second reference Bluetooth channel set;
when the type of the Bluetooth equipment is a first preset type, determining a third frequency according to the first frequency set;
and determining the second Bluetooth channel corresponding to the third frequency.
2. The method of claim 1, wherein the display-enabled Mobile Industry Processor Interface (MIPI) corresponds to a first set of frequencies comprising the display-enabled MIPI frequency, a first predetermined number of divisions of the MIPI frequency, and a second predetermined number of multiples of the MIPI frequency.
3. The method of claim 1 or 2, wherein the determining that the bluetooth module and the display screen generate electromagnetic interference according to the frequency data packet comprises:
determining a first Bluetooth channel of the Bluetooth module according to the frequency data packet, wherein the first Bluetooth channel corresponds to a second frequency;
when the difference value between the second frequency and any one of the first frequency set is smaller than or equal to a first preset threshold value, the fact that the Bluetooth module and the display screen generate electromagnetic interference is determined.
4. The method of claim 1 or 2, wherein the determining that the bluetooth module and the display screen generate electromagnetic interference according to the frequency data packet comprises:
determining a first Bluetooth channel of the Bluetooth module according to the frequency data packet;
inquiring a preset mapping relation by taking the first Bluetooth channel as an inquiry identifier to obtain the interference level of any frequency in the first frequency set to the first Bluetooth channel, wherein the mapping relation comprises the corresponding relation between any frequency in the first frequency set and the interference levels of a plurality of Bluetooth channels;
and determining that the Bluetooth module and the display screen generate electromagnetic interference according to the interference level.
5. An electromagnetic interference control apparatus, applied to an electronic device, comprising a processing unit and a communication unit, wherein,
the processing unit is used for acquiring a frequency data packet of a Bluetooth module, wherein the frequency data packet at least comprises a Bluetooth channel used when the Bluetooth module transmits with a Bluetooth device and a frequency corresponding to the Bluetooth channel; the Bluetooth module is used for determining that the Bluetooth module and the display screen generate electromagnetic interference according to the frequency data packet, and the Bluetooth module uses a first Bluetooth channel to perform data transmission with Bluetooth equipment; the device is used for acquiring the type of the Bluetooth device and determining a second Bluetooth channel according to the type of the Bluetooth device; the communication unit is used for switching the first Bluetooth channel into a second Bluetooth channel so as to reduce or avoid the electromagnetic interference, and sending a first message to the Bluetooth device through the communication unit, wherein the first message comprises a channel identifier of the second Bluetooth channel;
the mobile industry processor interface MIPI enabled by the display screen corresponds to a first frequency set, and the first frequency set comprises MIPI frequency enabled by the display screen, frequency division of a first preset number of the MIPI frequency and frequency multiplication of a second preset number of the MIPI frequency;
the determining the second bluetooth channel according to the type of the bluetooth device includes:
when the type of the Bluetooth equipment is a second preset type comprising a display screen, acquiring a second frequency set corresponding to MIPI (Mobile industry processor interface) frequency started by the display screen of the Bluetooth equipment, wherein the second preset type is a non-controlled equipment type comprising a mobile phone;
determining a first reference Bluetooth channel set according to the second frequency set;
determining a second reference Bluetooth channel set according to the first frequency set;
determining the second Bluetooth channel according to the first reference Bluetooth channel set and the second reference Bluetooth channel set;
when the type of the Bluetooth equipment is a first preset type, determining a third frequency according to the first frequency set;
and determining the second Bluetooth channel corresponding to the third frequency.
6. An electronic device comprising a processor, a memory, a communication interface, and one or more programs stored in the memory and configured to be executed by the processor, the programs comprising instructions for performing the steps in the method of any of claims 1-4.
7. A computer-readable storage medium, characterized in that a computer program for electronic data exchange is stored, wherein the computer program causes a computer to perform the method according to any one of claims 1-4.
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| CN201811487355.2A CN109475005B (en) | 2018-12-06 | 2018-12-06 | Electromagnetic interference control method and related device |
| PCT/CN2019/111448 WO2020114094A1 (en) | 2018-12-06 | 2019-10-16 | Electromagnetic interference control method and related apparatus |
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| US9549387B2 (en) * | 2015-05-29 | 2017-01-17 | Apple Inc. | Techniques for reducing interference in communications using conducted RF links |
| CN105704725A (en) * | 2016-03-09 | 2016-06-22 | 青岛海信电器股份有限公司 | Method and device for preventing mutual interference between WIFI communication and Bluetooth communication |
| CN105827775B (en) * | 2016-04-20 | 2019-04-30 | 努比亚技术有限公司 | A kind of test method and system reducing MIPI interference |
| CN106936515A (en) * | 2017-05-09 | 2017-07-07 | 广东欧珀移动通信有限公司 | Radio frequency interference processing method, storage medium and terminal |
| CN107135037A (en) * | 2017-05-23 | 2017-09-05 | 广东欧珀移动通信有限公司 | Radio frequency interference processing method, device, computer-readable recording medium and terminal |
| CN107276631A (en) * | 2017-07-18 | 2017-10-20 | 四川长虹电器股份有限公司 | The System and method for of bluetooth antijamming capability is improved based on WiFi channel estimatings |
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| CN108834176B (en) * | 2018-05-23 | 2022-01-18 | Oppo广东移动通信有限公司 | Antenna signal interference processing method, antenna signal interference processing device, electronic device and storage medium |
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