CN109474743B - Electromagnetic interference control method and related product - Google Patents

Electromagnetic interference control method and related product Download PDF

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Publication number
CN109474743B
CN109474743B CN201811377233.8A CN201811377233A CN109474743B CN 109474743 B CN109474743 B CN 109474743B CN 201811377233 A CN201811377233 A CN 201811377233A CN 109474743 B CN109474743 B CN 109474743B
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mipi
display screen
working frequency
interference
frequency
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CN109474743A (en
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唐凯
谭正鹏
陈运
王立中
杨海
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
    • H04M1/724—User interfaces specially adapted for cordless or mobile telephones
    • H04M1/72448—User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions
    • H04M1/72454—User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions according to context-related or environment-related conditions
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B15/00—Suppression or limitation of noise or interference
    • H04B15/02—Reducing interference from electric apparatus by means located at or near the interfering apparatus
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
    • H04M1/724—User interfaces specially adapted for cordless or mobile telephones
    • H04M1/72448—User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Human Computer Interaction (AREA)
  • Environmental & Geological Engineering (AREA)
  • Studio Devices (AREA)

Abstract

The embodiment of the application discloses an electromagnetic interference control method and a related product, when an electronic device starts a camera, a first MIPI working frequency of a MIPI of the camera is obtained, a second MIPI working frequency of the MIPI of a display screen is obtained, whether the first MIPI working frequency is interfered or not is determined according to the second MIPI working frequency, if yes, a frame rate and a resolution ratio of the display screen are obtained, a third MIPI working frequency which generates interference on the first MIPI working frequency and is smaller than the second MIPI working frequency is determined according to the frame rate and the resolution ratio, the MIPI working frequency of the display screen is adjusted according to the third MIPI working frequency, therefore, the MIPI working frequency of the display screen can be dynamically adjusted under the condition that the hardware design of the electronic device is not changed, the MIPI working frequency of the display screen is enabled to work at the working frequency which has smaller interference on the MIPI of the camera, interference on the camera communication is eliminated or reduced, and the transmission efficiency of shot images is improved, a better shooting experience is obtained.

Description

Electromagnetic interference control method and related product
Technical Field
The present application relates to the field of electronic technologies, and in particular, to an electromagnetic interference control method and a related product.
Background
With the development of mobile communication technology, a user has an increasing demand for communication with an electronic device such as a mobile phone, and at present, when the electronic device on the market transmits data, the data is generally transmitted through cellular mobile network communication or Wi-Fi communication, and the full-screen mobile phone faces a radio frequency interference problem, for example, when the electronic device is performing video broadcast, the frame rate and definition of the display screen are high, and when a Mobile Industrial Processor Interface (MIPI) for transmitting data operates at a fixed frequency, if the frequency division frequency or the frequency multiplication frequency of the MIPI falls on a specific operating frequency, various modules such as a camera module, a communication module, an audio module, and the like may be present and interfere with the MIPI of the display screen, so that the functional stability of each module in the electronic device is affected.
At present, the interference to each module can be improved through hardware upgrade, but the cost is increased, and the improvement effect is limited, so the problem of how to reduce the interference of the operating frequency of the display screen MIPI to each module of the electronic device is urgently solved.
Disclosure of Invention
The embodiment of the application provides an electromagnetic interference control method and a related product, which can eliminate or reduce electromagnetic interference of MIPI (mobile industry processor interface) working frequency of a display screen to camera communication and realize better shooting experience.
In a first aspect, an embodiment of the present application provides an electromagnetic interference control method, which is applied to an electronic device, where the electronic device includes a display screen and a camera, and the method includes:
when the electronic equipment starts the camera, acquiring a first Mobile Industry Processor Interface (MIPI) working frequency of the MIPI of the camera; acquiring a second MIPI working frequency of the MIPI of the display screen mobile industry processor interface;
determining whether the first MIPI working frequency is interfered according to the second MIPI working frequency;
if so, acquiring the frame rate and the resolution of the display screen;
determining a third MIPI working frequency with interference generated on the first MIPI working frequency smaller than the second MIPI working frequency according to the frame rate and the resolution;
and adjusting the MIPI working frequency of the display screen according to the third MIPI working frequency.
In a second aspect, an embodiment of the present application provides an electromagnetic interference control apparatus, which is applied to an electronic device, where the electronic device includes a display screen and a camera, and the electromagnetic interference control apparatus includes:
the device comprises an acquisition unit, a processing unit and a processing unit, wherein the acquisition unit is used for acquiring a first Mobile Industry Processor Interface (MIPI) working frequency of the MIPI when the electronic equipment starts the camera; acquiring a second MIPI working frequency of the MIPI of the display screen mobile industry processor interface;
a determining unit, configured to determine whether the first MIPI operating frequency is interfered according to the second MIPI operating frequency;
the acquiring unit is further configured to acquire a frame rate and a resolution of the display screen when the first MIPI operating frequency is interfered;
the determining unit is further configured to determine, according to the frame rate and the resolution, a third MIPI operating frequency at which interference generated on the first MIPI operating frequency is smaller than the second MIPI operating frequency;
and the adjusting unit is used for adjusting the MIPI working frequency of the display screen according to the third MIPI working frequency.
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 the steps in the first aspect of the embodiment of the present application.
In a fourth aspect, an embodiment of 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 enables a computer to perform some or all of the steps described in the first aspect of the embodiment of the present application.
In a fifth aspect, embodiments of the present application provide a computer program product, where the computer program product includes a non-transitory computer-readable storage medium storing a computer program, where the computer program is operable to cause a computer to perform some or all of the steps as described in 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 the electromagnetic interference control method and the related product described in the embodiments of the present application, when the electronic device starts the camera, the first MIPI operating frequency of the MIPI of the camera is obtained, the second MIPI operating frequency of the MIPI of the display screen is obtained, whether the first MIPI operating frequency is interfered is determined according to the second MIPI operating frequency, if so, the frame rate and the resolution of the display screen are obtained, the third MIPI operating frequency that the interference generated to the first MIPI operating frequency is smaller than the second MIPI operating frequency is determined according to the frame rate and the resolution, and the MIPI operating frequency of the display screen is adjusted according to the third MIPI operating frequency, so that the MIPI operating frequency of the display screen can be dynamically adjusted without changing the hardware design of the electronic device, so that the MIPI of the display screen operates at the operating frequency with smaller interference to the MIPI of the camera, thereby eliminating or reducing the interference to the camera communication, and improving the transmission efficiency of the photographed image, a better shooting experience is obtained.
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. 1A is a schematic structural diagram of an electronic device according to an embodiment of the present disclosure;
fig. 1B is a schematic flowchart of an electromagnetic interference control method disclosed in an embodiment of the present application;
FIG. 2 is a schematic flow chart diagram of another EMI control method disclosed in an embodiment of the present application;
FIG. 3 is a schematic flow chart diagram illustrating another EMI control method disclosed in an embodiment of the present application;
fig. 4 is a schematic structural diagram of another electronic device disclosed in the embodiments of the present application;
fig. 5 is a schematic structural diagram of an electromagnetic interference control apparatus disclosed in 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 embodiment of the present application may include various handheld devices, vehicle-mounted devices, wireless headsets, 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 the like, which have a wireless communication function, and the electronic device may be, for example, a smart phone, a tablet computer, a headset box, and the like. For convenience of description, the above-mentioned devices are collectively referred to as electronic devices.
Referring to fig. 1A, fig. 1A is a schematic structural diagram of an electronic device according to an embodiment of the present disclosure, where the electronic device includes a control circuit and an input-output circuit, and the input-output circuit is connected to the control circuit.
The control circuitry may include, among other things, storage and processing circuitry. The storage circuit in the storage and processing circuit may be a memory, such as a hard disk drive memory, a non-volatile memory (e.g., a flash memory or other electronically programmable read only memory used to form a solid state drive, etc.), a volatile memory (e.g., a static or dynamic random access memory, etc.), etc., and the embodiments of the present application are not limited thereto. Processing circuitry in the storage and processing circuitry may be used to control the operation of the electronic device. The processing circuitry may be implemented based on one or more microprocessors, microcontrollers, digital signal processors, baseband processors, power management units, audio codec chips, application specific integrated circuits, display driver integrated circuits, and the like.
The storage and processing circuitry may be used to run software in the electronic device, such as play incoming call alert ringing application, play short message alert ringing application, play alarm alert ringing application, play media file application, Voice Over Internet Protocol (VOIP) phone call application, operating system functions, and so forth. The software may be used to perform some control operations, such as playing an incoming alert ring, playing a short message alert ring, playing an alarm alert ring, playing a media file, making a voice phone call, and performing other functions in the electronic device, and the embodiments of the present application are not limited.
The input-output circuit can be used for enabling the electronic device to input and output data, namely allowing the electronic device to receive data from the external device and allowing the electronic device to output data from the electronic device to the external device.
The input-output circuit may further include a sensor. The sensors may include ambient light sensors, optical and capacitive based infrared proximity sensors, ultrasonic sensors, touch sensors (e.g., optical based touch sensors and/or capacitive touch sensors, where the touch sensors may be part of a touch display screen or may be used independently as a touch sensor structure), acceleration sensors, gravity sensors, and other sensors, etc. The input-output circuit may further include audio components that may be used to provide audio input and output functionality for the electronic device. The audio components may also include a tone generator and other components for generating and detecting sound.
The input-output circuitry may also include one or more display screens. The display screen can comprise one or a combination of a liquid crystal display screen, an organic light emitting diode display screen, an electronic ink display screen, a plasma display screen and a display screen using other display technologies. The display screen may include an array of touch sensors (i.e., the display screen may be a touch display screen). The touch sensor may be a capacitive touch sensor formed by a transparent touch sensor electrode (e.g., an Indium Tin Oxide (ITO) electrode) array, or may be a touch sensor formed using other touch technologies, such as acoustic wave touch, pressure sensitive touch, resistive touch, optical touch, and the like, and the embodiments of the present application are not limited thereto.
The input-output circuitry may further include communications circuitry that may be used to provide the electronic device with the ability to communicate with external devices. The communication circuitry may include analog and digital input-output interface circuitry, and wireless communication circuitry based on radio frequency signals and/or optical signals. The wireless communication circuitry in the communication circuitry may include radio frequency transceiver circuitry, power amplifier circuitry, low noise amplifiers, switches, filters, and antennas. For example, the wireless communication circuitry in the communication circuitry may include circuitry to support Near Field Communication (NFC) by transmitting and receiving near field coupled electromagnetic signals. For example, the communication circuit may include a near field communication antenna and a near field communication transceiver. The communications circuitry may also include cellular telephone transceiver and antennas, wireless local area network transceiver circuitry and antennas, and so forth.
The input-output circuit may further include other input-output units. Input-output units may include buttons, joysticks, click wheels, scroll wheels, touch pads, keypads, keyboards, cameras, light emitting diodes and other status indicators, and the like.
The electronic device may further include a battery (not shown) for supplying power to the electronic device.
The following describes embodiments of the present application in detail.
Referring to fig. 1B, fig. 1B is a schematic flowchart of an electromagnetic interference control method disclosed in an embodiment of the present application, and is applied to the electronic device described in fig. 1A, where the electronic device includes a display screen and a camera, and the electromagnetic interference control method includes the following steps:
101. when the electronic equipment starts the camera, acquiring a first Mobile Industry Processor Interface (MIPI) working frequency of the MIPI of the camera; and acquiring a second MIPI working frequency of the MIPI of the processor interface of the display screen mobile industry.
The embodiment of the application is suitable for a picture taking or video chatting scene, in the picture taking or video chatting scene, the electronic equipment can start the camera to shoot, and the shot picture and the shot image or video are displayed through the display screen, so that when the camera is started, the first MIPI working frequency of the camera MIPI can be obtained, specifically, the first MIPI working frequency is reported to a unified processor or an application processor AP in the electronic equipment through the camera, and meanwhile, the second MIPI working frequency of the display screen MIPI can be obtained.
102. And determining whether the first MIPI working frequency is interfered according to the second MIPI working frequency.
In the embodiment of the application, when the display screen MIPI works at the second MIPI working frequency, if the frequency division or frequency multiplication frequency point of the display screen MIPI falls on the first MIPI working frequency of the camera, it is indicated that the second MIPI working frequency interferes with the first MIPI working frequency, wherein the interference frequency ranges of the interference generated on the camera, which correspond to different second MIPI working frequencies, are different.
Optionally, in the step 102, determining whether the first MIPI operating frequency is interfered according to the second MIPI operating frequency may include the following steps:
21. determining a target camera interference scrambling rate list corresponding to the second MIPI working frequency from a plurality of preset camera interference scrambling rate lists according to the corresponding relation between the preset display screen MIPI working frequency and the camera interference scrambling rate lists, wherein the target camera interference scrambling rate list comprises a plurality of first interference frequencies corresponding to the second MIPI working frequency;
22. and matching the first MIPI working frequency with the plurality of first interference frequencies in the target camera interference frequency list in sequence, and determining that the first MIPI working frequency is interfered if the first MIPI working frequency is successfully matched with any one of the plurality of first interference frequencies.
Wherein, the electronic device can pre-acquire a plurality of camera interference rate lists which are corresponding to the display screen MIPI under a plurality of display screen MIPI working frequencies and generate interference to the cameras, each display screen MIPI working frequency corresponds to one camera interference frequency list, each camera interference frequency list comprises a plurality of interference frequencies, then, the corresponding relation between the MIPI working frequency of the display screen and the camera interference frequency list is set, so that, after acquiring a second MIPI operating frequency of the display screen MIPI, determining a target camera interference rate list corresponding to the second MIPI operating frequency, wherein the target camera interference rate list contains a plurality of first interference frequencies corresponding to the second MIPI operating frequency, indicating that the second MIPI operating frequency can generate interference on any one of the plurality of first interference frequencies, each of the first interference frequencies refers to an operating frequency at which the camera is interfered during communication.
Further, the first MIPI operating frequency of the camera may be sequentially matched with the plurality of first interference frequencies in the target camera interference frequency list, and if a first interference frequency equal to the first MIPI operating frequency exists in the plurality of first interference frequencies, the matching is successful, that is, the first MIPI operating frequency of the camera falls into the range of the target camera interference frequency list, it is determined that the first MIPI operating frequency is interfered by the second MIPI operating frequency.
103. And if so, acquiring the frame rate and the resolution of the display screen.
In the embodiment of the application, if it is determined that the first MIPI operating frequency of the camera is interfered, the frame rate and the resolution of the display screen can be obtained, wherein the frame rate refers to the frame rate at which the display screen displays the shot picture or the shot content, and the resolution refers to the resolution at which the display screen displays the shot picture or the shot content to be displayed.
Optionally, in the step 103, acquiring a frame rate and a resolution corresponding to the display screen may include the following steps:
31. determining a target application running when the camera is started;
32. acquiring display content of an application interface of the target application displayed by the display screen;
33. and determining the frame rate and the resolution corresponding to the display screen according to the display content.
Wherein, the target application may comprise any one of the following: the method comprises the steps of using a shooting application, a camera application, an application for shooting or video chatting through a third-party application and the like, wherein frame rates and resolution requirements corresponding to different target applications are different, and frame rates and resolution requirements corresponding to different shot objects and shooting environments are also different, so that the target application of the camera can be determined to be started currently, then display contents displayed on a display screen can be obtained, for example, contents of shot images or shot videos can be obtained aiming at the image or video shooting application, wherein the contents comprise shot objects in the images and shooting environment information, and further, the frame rates and resolutions corresponding to the display screen are determined according to the display contents, for example, the frame rates and the resolutions corresponding to the shot objects and the shot objects as scenery are different, the intensity of illumination in the shooting environments is different, or the weather and the shooting scenes are different, and the corresponding frame rates and the resolutions are also different, the shooting scene may include, for example, indoors, outdoors, forest, seaside, and the like.
Optionally, the target application is a photographing application, the display content is a target video photographed by the camera, and the determining, in the step 33, a frame rate and a resolution corresponding to the display screen according to the display content may include the following steps:
a1, acquiring color information of the target video;
a2, determining the frame rate and the resolution of the display screen according to the color information of the target video.
When the target application is a photographing application, the display content is a target video photographed by a camera, color information of the target video can be acquired, and the color information can include an average brightness value of each frame of image in the target video, so that a frame rate and a resolution of the display screen can be determined according to the color information.
104. And determining a third MIPI working frequency which is smaller than the second MIPI working frequency and generates interference on the first MIPI working frequency according to the frame rate and the resolution.
In the embodiment of the application, in order to eliminate or reduce the influence of the display screen on the communication of the camera, after the frame rate and the resolution of the display screen are determined, the third MIPI operating frequency, in which the interference generated on the first MIPI operating frequency is smaller than the second MIPI operating frequency, is determined according to the frame rate and the resolution, so that the camera can operate at the MIPI operating frequency with no interference or less interference.
Optionally, in the step 104, determining a third MIPI operating frequency that generates less interference to the first MIPI operating frequency than the second MIPI operating frequency according to the frame rate and the resolution may include the following steps:
determining a target MIPI working frequency range list corresponding to the display screen according to the frame rate and the resolution, wherein the target MIPI working frequency range list comprises a plurality of MIPI working frequencies;
determining an interference strength value of each MIPI working frequency in the plurality of MIPI working frequencies to the first working frequency to obtain a plurality of interference strength values;
and determining a third MIPI working frequency corresponding to the interference strength value smaller than the preset strength value in the plurality of interference strength values.
The first weight corresponding to the frame rate and the second weight corresponding to the resolution may be preset, the target score value may be determined according to the frame rate, the first weight, the resolution and the second weight, and the target MIPI operating frequency range list corresponding to the target score value may be determined according to a correspondence between the preset score value and the MIPI operating frequency range list, for example, the calculation may be performed according to the following formula:
target score value frame first weight + resolution second weight
Furthermore, because the target MIPI operating frequency range list includes a plurality of MIPI operating frequencies, a third MIPI operating frequency which is smaller than a preset intensity value in the interference intensity value of the first MIPI operating frequency of the camera can be further determined, so that the interference of the display screen MIPI operating frequency on the operating frequency of the camera can be reduced, and better camera communication performance can be obtained.
105. And adjusting the MIPI working frequency of the display screen according to the third MIPI working frequency.
In the embodiment of the application, after the second MIPI working frequency is determined, the MIPI working frequency of the display screen MIPI can be adjusted from the second MIPI working frequency to the third MIPI working frequency, so that electromagnetic interference of a display screen MIPI bus to camera communication can be eliminated or reduced, and the best communication performance and shooting experience are obtained.
Furthermore, in the process of adjusting the MIPI working frequency of the display screen, the display parameters of the display screen can be adjusted to ensure the stable work of the display screen.
Optionally, in this embodiment of the application, when the MIPI operating frequency of the display screen is adjusted according to the third MIPI operating frequency, the method may further include the following steps:
b1, when the frame rate of the display screen is smaller than a first preset threshold after MIPI frequency switching, determining a reference screen parameter value of the display screen according to a preset frame rate calculation formula and the third MIPI working frequency;
b2, dynamically adjusting the screen parameters of the display screen according to the reference screen parameter values to obtain target screen parameter values, wherein the screen parameters include at least one of the following porch values in the preset frame rate calculation formula: horizontal back porch HBP, horizontal front porch HFP, vertical back porch VBP, vertical front porch VFP, width of vertical sync signal VSA, width of horizontal sync signal HAS.
The preset frame rate calculation formula is as follows:
FPS＝CLK_rate*2*lane_num/((height+VBP+VSA+VFP)*(weight+HBP+HFP+HSA)*bits_perpixel)
wherein FPS represents a frame rate of the display screen, CLK _ rate represents an MIPI frequency, lane _ num represents a number of channels, height and weight represent physical sizes of the display screen, vbp (vertical back) represents a number of invalid lines after the vertical synchronization signal at the start of one frame image, vfb (vertical front) represents a number of invalid lines before the vertical synchronization signal after the end of one frame image, vsa (vertical sync active) represents a width of the vertical synchronization signal, hbp (vertical back) represents a number of clocks from the start of the horizontal synchronization signal to the start of valid data of one line, hfp (vertical front) represents a number of clocks from the end of valid data of one line to the start of the next horizontal synchronization signal, hsa (vertical sync): indicating the width of the horizontal synchronization signal and bit _ pixel indicates the RGB display data width.
The first preset threshold may be an empirical value, and is used to ensure the stability of content display of the display screen before and after frequency switching, for example, the maximum allowable error range of the display screen chip may be 1%.
It can be seen that, in the embodiment of the present application, after the electronic device performs frequency hopping switching, some parameters of a display screen of the electronic device may be changed, and a frame rate is an important parameter index for ensuring display stability of the display screen after the frequency hopping switching, so that the electronic device may predetermine a reference screen parameter value of a screen parameter that needs to be adjusted synchronously in the frequency hopping process based on a frame rate formula, and the electronic device may adjust the screen parameter to the reference screen parameter value first, further dynamically adjust the screen parameter on the basis of the reference screen parameter value, and finally reach a target screen parameter value, thereby improving display stability of the display screen.
Optionally, in the step B2, the screen parameters include horizontal screen parameters, and the horizontal screen parameters include at least one of: the HBP, the HFP and the HAS; the method for dynamically adjusting the screen parameter of the display screen according to the reference screen parameter value to obtain the target screen parameter value may include the following steps:
and dynamically adjusting horizontal screen parameters of the display screen according to the reference screen parameter values, so that the variation of the line scanning duration of the display screen after the MIPI frequency switching is smaller than a second preset threshold.
If the screen parameter is a horizontal screen parameter, the electronic device may adjust the horizontal screen parameter to a reference screen parameter value, and further dynamically adjust the screen parameter on the basis of the reference screen parameter value, so that a variation of a line scanning duration of the display screen after the MIPI frequency is switched is smaller than a second preset threshold, thereby improving display stability of the display screen.
For example, when the MIPI master frequency of the display screen is 514.5MHz, the line scanning time is measured to be 7.18us, and when the MIPI frequency is switched to the auxiliary frequency 529MHz, fine adjustment is performed according to the reference value of the screen parameter, the line scanning time is measured synchronously, and the value of the fine-adjusted screen parameter in the state that the line scanning time is 7.18us is determined to be the target value. The preset frame rate calculation formula is only a theoretical calculation formula, actually, due to physical differences of devices, the accuracy of the reference value is not very high, the difference between the MIPI transmission frequency and the screen parameter value is actually large (difference between MHz and dozens or hundreds of MHz), and meanwhile, the horizontal screen parameter of the display screen has a large influence on the display stability, so that the value of the horizontal screen parameter is corrected based on an actual detection result, and the stability is improved.
In addition, if the screen parameters only include vertical screen parameters, the vertical screen parameters include at least one of the following: the VBP, the VFP, and the VAS, the target screen parameter value may be equal to the reference screen parameter value, that is, adjusting the vertical porch value has no influence on the line scanning duration.
Therefore, in the embodiment of the application, under the condition that the screen parameters include horizontal screen parameters, the electronic device can correct the reference screen parameter values according to the line scanning duration constraint conditions and by combining actual detection results, so that the stability of the display screen after frequency hopping is improved.
It can be seen that, in the electromagnetic interference control method described in the embodiment of the present application, when the electronic device starts the camera, the first MIPI operating frequency of the camera MIPI is obtained, the second MIPI operating frequency of the display screen MIPI is obtained, whether the first MIPI operating frequency is interfered is determined according to the second MIPI operating frequency, if so, the frame rate and the resolution of the display screen are obtained, the third MIPI operating frequency that the interference generated to the first MIPI operating frequency is smaller than the second MIPI operating frequency is determined according to the frame rate and the resolution, the MIPI operating frequency of the display screen is adjusted according to the third MIPI operating frequency, so that the MIPI operating frequency of the display screen can be dynamically adjusted without changing the hardware design of the electronic device, so that the MIPI of the display screen operates at the operating frequency with smaller interference to the camera MIPI, thereby eliminating or reducing the interference to the camera communication, and improving the transmission efficiency of the shot images, a better shooting experience is obtained.
Consistent with the above, fig. 2 is a schematic flowchart of an electromagnetic interference control method disclosed in an embodiment of the present application. The method is applied to the electronic equipment shown in FIG. 1A, the electronic equipment comprises a display screen and a camera, and the electromagnetic interference control method comprises the following steps:
201. when the electronic equipment starts the camera, acquiring a first Mobile Industry Processor Interface (MIPI) working frequency of the MIPI of the camera; and acquiring a second MIPI working frequency of the MIPI of the processor interface of the display screen mobile industry.
202. And determining whether the first MIPI working frequency is interfered according to the second MIPI working frequency.
203. And if so, acquiring the frame rate and the resolution of the display screen.
204. And determining a third MIPI working frequency which is smaller than the second MIPI working frequency and generates interference on the first MIPI working frequency according to the frame rate and the resolution.
205. And adjusting the MIPI working frequency of the display screen according to the third MIPI working frequency.
206. And when the variation of the frame rate of the display screen after the MIPI frequency is switched is smaller than a first preset threshold value, determining a reference screen parameter value of the display screen according to a preset frame rate calculation formula and the third MIPI working frequency.
207. Dynamically adjusting the screen parameters of the display screen according to the reference screen parameter values to obtain target screen parameter values, wherein the screen parameters include at least one of the following porch values in the preset frame rate calculation formula: horizontal back porch HBP, horizontal front porch HFP, vertical back porch VBP, vertical front porch VFP, width of vertical sync signal VSA, width of horizontal sync signal HAS.
The detailed descriptions of steps 201 to 207 may refer to the corresponding descriptions of the electromagnetic interference control method described in fig. 1B, and are not repeated herein.
It can be seen that, in the electromagnetic interference control method described in the embodiment of the present application, when the electronic device starts the camera, a first MIPI operating frequency of the camera MIPI and a second MIPI operating frequency of the display screen MIPI are obtained, whether the first MIPI operating frequency is interfered is determined according to the second MIPI operating frequency, if so, a frame rate and a resolution of the display screen are obtained, a third MIPI operating frequency that generates interference on the first MIPI operating frequency is determined according to the frame rate and the resolution and is smaller than the second MIPI operating frequency, the MIPI operating frequency of the display screen is adjusted according to the third MIPI operating frequency, when a variation of the frame rate of the display screen after MIPI frequency switching is smaller than a first preset threshold, a reference screen parameter value of the display screen is determined, a screen parameter of the display screen is dynamically adjusted according to the reference screen parameter value, a target screen parameter value is obtained, so that the display screen can work at an operating frequency that has less interference on the MIPI of the camera, therefore, the interference of the camera to the camera communication is eliminated or reduced, the transmission efficiency of the shot image is improved, better shooting experience is obtained, and the display stability of the display screen is improved.
Consistent with the above, fig. 3 is a schematic flowchart of an electromagnetic interference control method disclosed in an embodiment of the present application. The method is applied to the electronic equipment shown in FIG. 1A, the electronic equipment comprises a display screen and a camera, and the electromagnetic interference control method comprises the following steps:
301. when the electronic equipment starts the camera, acquiring a first Mobile Industry Processor Interface (MIPI) working frequency of the MIPI of the camera; and acquiring a second MIPI working frequency of the MIPI of the processor interface of the display screen mobile industry.
302. And determining whether the first MIPI working frequency is interfered according to the second MIPI working frequency.
303. And if so, acquiring the frame rate and the resolution of the display screen.
304. And determining a target MIPI working frequency range list corresponding to the display screen according to the frame rate and the resolution, wherein the target MIPI working frequency range list comprises a plurality of MIPI working frequencies.
305. And determining the interference strength value of each MIPI working frequency in the plurality of MIPI working frequencies to the first working frequency to obtain a plurality of interference strength values.
306. And determining a third MIPI working frequency corresponding to the interference strength value smaller than the preset strength value in the plurality of interference strength values.
307. And adjusting the MIPI working frequency of the display screen according to the third MIPI working frequency.
308. And when the variation of the frame rate of the display screen after the MIPI frequency is switched is smaller than a first preset threshold value, determining a reference screen parameter value of the display screen according to a preset frame rate calculation formula and the third MIPI working frequency.
309. Dynamically adjusting the screen parameters of the display screen according to the reference screen parameter values to obtain target screen parameter values, wherein the screen parameters include at least one of the following porch values in the preset frame rate calculation formula: horizontal back porch HBP, horizontal front porch HFP, vertical back porch VBP, vertical front porch VFP, width of vertical sync signal VSA, width of horizontal sync signal HAS.
The detailed descriptions of steps 301 to 309 may refer to the corresponding descriptions of the electromagnetic interference control method described in fig. 1B, and are not repeated herein.
It can be seen that, in the electromagnetic interference control method described in this embodiment of the present application, by obtaining a first MIPI operating frequency of a camera MIPI and a second MIPI operating frequency of a display screen MIPI, whether the first MIPI operating frequency is interfered is determined according to the second MIPI operating frequency, a target MIPI operating frequency range list corresponding to the display screen is determined according to a frame rate and a resolution of the display screen, an interference strength value of each MIPI operating frequency in a plurality of MIPI operating frequencies included in the target MIPI operating frequency range list to the first operating frequency is determined, a plurality of interference strength values are obtained, a third MIPI operating frequency corresponding to an interference strength value smaller than a preset strength value in the plurality of interference strength values is determined, the MIPI operating frequency of the display screen is adjusted according to the third MIPI operating frequency, when a variation of the frame rate of the display screen after MIPI frequency switching is smaller than a first preset threshold, a reference screen parameter value of the display screen is determined, the screen parameter of the display screen is dynamically adjusted according to the reference screen parameter value to obtain the target screen parameter value, so that the MIPI of the display screen can work at the working frequency with less interference to the MIPI of the camera, the interference to the communication of the camera is eliminated or reduced, the transmission efficiency of the shot images is improved, better shooting experience is obtained, and the display stability of the display screen is improved.
Referring to fig. 4, fig. 4 is a schematic structural diagram of another electronic device disclosed in the embodiment of the present application, and as shown in the drawing, the electronic device includes 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 performing the following steps:
when the electronic equipment starts the camera, acquiring a first Mobile Industry Processor Interface (MIPI) working frequency of the MIPI of the camera; acquiring a second MIPI working frequency of the MIPI of the display screen mobile industry processor interface;
determining whether the first MIPI working frequency is interfered according to the second MIPI working frequency;
if so, acquiring the frame rate and the resolution of the display screen;
determining a third MIPI working frequency with interference generated on the first MIPI working frequency smaller than the second MIPI working frequency according to the frame rate and the resolution;
adjusting the MIPI working frequency of the display screen according to the third MIPI working frequency
In one possible example, in the determining whether the first MIPI operating frequency is interfered with based on the second MIPI operating frequency, the program includes instructions for:
determining a target camera interference scrambling rate list corresponding to the second MIPI working frequency from a plurality of preset camera interference scrambling rate lists according to the corresponding relation between the preset display screen MIPI working frequency and the camera interference scrambling rate lists, wherein the target camera interference scrambling rate list comprises a plurality of first interference frequencies corresponding to the second MIPI working frequency;
and matching the first MIPI working frequency with the plurality of first interference frequencies in the target camera interference frequency list in sequence, and determining that the first MIPI working frequency is interfered if the first MIPI working frequency is successfully matched with any one of the plurality of first interference frequencies.
In one possible example, in terms of the obtaining of the frame rate and the resolution corresponding to the display screen, the program includes instructions for performing the following steps:
determining a target application running when the camera is started;
acquiring display content of an application interface of the target application displayed by the display screen;
and determining the frame rate and the resolution corresponding to the display screen according to the display content.
In one possible example, the target application is a photographing application, the display content is a target video photographed by the camera, and in terms of determining the frame rate and resolution corresponding to the display screen according to the display content, the program includes instructions for performing the following steps:
acquiring color information of the target video;
and determining the frame rate and the resolution of the display screen according to the color information of the target video.
In one possible example, in determining a third MIPI operating frequency that causes less interference to the first MIPI operating frequency than the second MIPI operating frequency based on the frame rate and the resolution, the program includes instructions for:
determining a target MIPI working frequency range list corresponding to the display screen according to the frame rate and the resolution, wherein the target MIPI working frequency range list comprises a plurality of MIPI working frequencies;
determining an interference strength value of each MIPI working frequency in the plurality of MIPI working frequencies to the first working frequency to obtain a plurality of interference strength values;
and determining a third MIPI working frequency corresponding to the interference strength value smaller than the preset strength value in the plurality of interference strength values.
In one possible example, in the adjusting the MIPI operating frequency of the display screen according to the third MIPI operating frequency, the program further includes instructions for performing the following steps:
when the variation of the frame rate of the display screen after the MIPI frequency is switched is smaller than a first preset threshold value, determining a reference screen parameter value of the display screen according to a preset frame rate calculation formula and the third MIPI working frequency;
dynamically adjusting the screen parameters of the display screen according to the reference screen parameter values to obtain target screen parameter values, wherein the screen parameters include at least one of the following porch values in the preset frame rate calculation formula: horizontal back porch HBP, horizontal front porch HFP, vertical back porch VBP, vertical front porch VFP, width of vertical sync signal VSA, width of horizontal sync signal HAS.
In one possible example, the screen parameters include horizontal screen parameters including at least one of: the HBP, the HFP and the HAS;
in the aspect of dynamically adjusting the screen parameter of the display screen according to the reference screen parameter value to obtain a target screen parameter value, the program includes instructions for executing the following steps:
and dynamically adjusting horizontal screen parameters of the display screen according to the reference screen parameter values, so that the variation of the line scanning duration of the display screen after the MIPI frequency switching is smaller than a second preset threshold.
The above description has introduced the solution of the embodiment of the present application mainly from the perspective of the method-side implementation process. 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.
Referring to fig. 5, fig. 5 is a schematic structural diagram of an electromagnetic interference control apparatus disclosed in an embodiment of the present application, and is applied to the electronic device shown in fig. 1A, where the electronic device includes a display screen and a camera, the electromagnetic interference control apparatus includes an obtaining unit 501, a determining unit 502, and an adjusting unit 503, where,
the obtaining unit 501 is configured to obtain a first MIPI operating frequency of a processor interface MIPI of the camera mobile industry when the electronic device starts the camera; acquiring a second MIPI working frequency of the MIPI of the display screen mobile industry processor interface;
the determining unit 502 is configured to determine whether the first MIPI operating frequency is interfered according to the second MIPI operating frequency;
the obtaining unit 501 is further configured to obtain a frame rate and a resolution of the display screen when the first MIPI operating frequency is interfered;
the determining unit 502 is further configured to determine, according to the frame rate and the resolution, a third MIPI operating frequency at which interference generated on the first MIPI operating frequency is smaller than the second MIPI operating frequency;
the adjusting unit 503 is configured to adjust the MIPI operating frequency of the display screen according to the third MIPI operating frequency.
Optionally, in the aspect of determining whether the first MIPI operating frequency is interfered according to the second MIPI operating frequency, the determining unit 502 is specifically configured to:
determining a target camera interference scrambling rate list corresponding to the second MIPI working frequency from a plurality of preset camera interference scrambling rate lists according to the corresponding relation between the preset display screen MIPI working frequency and the camera interference scrambling rate lists, wherein the target camera interference scrambling rate list comprises a plurality of first interference frequencies corresponding to the second MIPI working frequency;
and matching the first MIPI working frequency with the plurality of first interference frequencies in the target camera interference frequency list in sequence, and determining that the first MIPI working frequency is interfered if the first MIPI working frequency is successfully matched with any one of the plurality of first interference frequencies.
Optionally, in terms of the obtaining of the frame rate and the resolution corresponding to the display screen, the obtaining unit 501 is specifically configured to:
determining a target application running when the camera is started;
acquiring display content of an application interface of the target application displayed by the display screen;
and determining the frame rate and the resolution corresponding to the display screen according to the display content.
Optionally, the target application is a photographing application, the display content is a target video photographed by the camera, and in terms of determining the frame rate and the resolution corresponding to the display screen according to the display content, the determining unit 502 is specifically configured to:
acquiring color information of the target video;
and determining the frame rate and the resolution of the display screen according to the color information of the target video.
Optionally, in the aspect of determining, according to the frame rate and the resolution, a third MIPI operating frequency at which interference generated on the first MIPI operating frequency is smaller than the second MIPI operating frequency, the determining unit 502 is specifically configured to:
determining a target MIPI working frequency range list corresponding to the display screen according to the frame rate and the resolution, wherein the target MIPI working frequency range list comprises a plurality of MIPI working frequencies;
determining an interference strength value of each MIPI working frequency in the plurality of MIPI working frequencies to the first working frequency to obtain a plurality of interference strength values;
and determining a third MIPI working frequency corresponding to the interference strength value smaller than the preset strength value in the plurality of interference strength values.
Optionally, when the MIPI operating frequency of the display screen is adjusted according to the third MIPI operating frequency, the determining unit 502 is further configured to:
when the variation of the frame rate of the display screen after the MIPI frequency is switched is smaller than a first preset threshold value, determining a reference screen parameter value of the display screen according to a preset frame rate calculation formula and the third MIPI working frequency;
dynamically adjusting the screen parameters of the display screen according to the reference screen parameter values to obtain target screen parameter values, wherein the screen parameters include at least one of the following porch values in the preset frame rate calculation formula: horizontal back porch HBP, horizontal front porch HFP, vertical back porch VBP, vertical front porch VFP, width of vertical sync signal VSA, width of horizontal sync signal HAS.
Optionally, the screen parameters include horizontal screen parameters, the horizontal screen parameters including at least one of: the HBP, the HFP and the HAS;
in the aspect that the screen parameter of the display screen is dynamically adjusted according to the reference screen parameter value to obtain a target screen parameter value, the adjusting unit is specifically configured to:
and dynamically adjusting horizontal screen parameters of the display screen according to the reference screen parameter values, so that the variation of the line scanning duration of the display screen after the MIPI frequency switching is smaller than a second preset threshold.
It can be seen that, the electromagnetic interference control apparatus described in the embodiment of the present application obtains the first MIPI operating frequency of the MIPI of the camera by turning on the camera in the electronic device, obtains the second MIPI operating frequency of the MIPI of the display screen, determines whether the first MIPI operating frequency is interfered according to the second MIPI operating frequency, obtains the frame rate and the resolution of the display screen if the first MIPI operating frequency is interfered, determines the third MIPI operating frequency that is smaller than the second MIPI operating frequency and generates interference to the first MIPI operating frequency according to the frame rate and the resolution, and adjusts the MIPI operating frequency of the display screen according to the third MIPI operating frequency, so that the MIPI operating frequency of the display screen can be dynamically adjusted without changing the hardware design of the electronic device, so that the MIPI of the display screen operates at the operating frequency that has less interference to the MIPI of the camera, thereby eliminating or reducing the interference to the camera communication, and improving the transmission efficiency of the shot image, a better shooting experience is obtained.
It should be noted that the electronic device described in the embodiments of the present application is presented in the form of a functional unit. The term "unit" as used herein is to be understood in its broadest possible sense, and objects used to implement the functions described by the respective "unit" may be, for example, an integrated circuit ASIC, a single circuit, a processor (shared, dedicated, or chipset) and memory that execute one or more software or firmware programs, a combinational logic circuit, and/or other suitable components that provide the described functionality.
The obtaining unit 501, the determining unit 502 and the adjusting unit 503 may be a control circuit or a processor.
Embodiments of the present application also provide a computer storage medium, wherein the computer storage medium stores a computer program for electronic data exchange, and the computer program enables a computer to execute part or all of the steps of any one of the electromagnetic interference control methods as described in the above method embodiments.
Embodiments of the present application also provide a computer program product, which includes a non-transitory computer-readable storage medium storing a computer program, and the computer program is operable to cause a computer to execute some or all of the steps of any one of the electromagnetic interference control methods as described in the above method embodiments.
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 division of the units is only one type of division of logical functions, and there may be other divisions when actually implementing, for example, a plurality of units or components may be combined or may be integrated into another system, or some features may be omitted, or not implemented. 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 may be implemented in the form of hardware, or may be implemented in the form of a software program module.
The integrated units, if implemented in the form of software program modules and sold or used as stand-alone products, may be stored in a computer readable memory. 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 method described in 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 or optical disk, and the like.
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 disk, ROM, RAM, magnetic or optical disk, 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 (10)

1. An electromagnetic interference control method is applied to electronic equipment, wherein the electronic equipment comprises a display screen and a camera, and the method comprises the following steps:
when the electronic equipment starts the camera, acquiring a first Mobile Industry Processor Interface (MIPI) working frequency of the MIPI of the camera; acquiring a second MIPI working frequency of the MIPI of the display screen mobile industry processor interface;
determining whether the first MIPI working frequency is interfered according to the second MIPI working frequency;
if so, acquiring a frame rate and a resolution of the display screen, wherein the frame rate is a frame rate for displaying a shooting picture or shooting content on the display screen, and the resolution is a resolution for displaying the shooting picture or shooting content on the display screen;
determining a third MIPI working frequency according to the frame rate and the resolution, wherein the interference of the third MIPI working frequency to the first MIPI working frequency is smaller than the interference of the second MIPI working frequency to the first MIPI working frequency;
and adjusting the MIPI working frequency of the display screen according to the third MIPI working frequency.
2. The method of claim 1, wherein the determining whether the first MIPI operating frequency is interfered with based on the second MIPI operating frequency comprises:
determining a target camera interference scrambling rate list corresponding to the second MIPI working frequency from a plurality of preset camera interference scrambling rate lists according to the corresponding relation between the preset display screen MIPI working frequency and the camera interference scrambling rate lists, wherein the target camera interference scrambling rate list comprises a plurality of first interference frequencies corresponding to the second MIPI working frequency;
and matching the first MIPI working frequency with the plurality of first interference frequencies in the target camera interference frequency list in sequence, and determining that the first MIPI working frequency is interfered if the first MIPI working frequency is successfully matched with any one of the plurality of first interference frequencies.
3. The method of claim 1, wherein the obtaining a frame rate and a resolution of the display screen comprises:
determining a target application running when the camera is started;
acquiring display content of an application interface of the target application displayed by the display screen;
and determining the frame rate and the resolution corresponding to the display screen according to the display content.
4. The method according to claim 3, wherein the target application is a photographing application, the display content is a target video photographed by the camera, and the determining the frame rate and the resolution corresponding to the display screen according to the display content comprises:
acquiring color information of the target video;
and determining the frame rate and the resolution of the display screen according to the color information of the target video.
5. The method of any of claims 1-4, wherein determining a third MIPI operating frequency based on the frame rate and the resolution comprises:
determining a target MIPI working frequency range list corresponding to the display screen according to the frame rate and the resolution, wherein the target MIPI working frequency range list comprises a plurality of MIPI working frequencies;
determining an interference strength value of each MIPI working frequency in the plurality of MIPI working frequencies to the first MIPI working frequency to obtain a plurality of interference strength values;
and determining that the MIPI working frequency corresponding to the interference strength value smaller than the preset strength value in the plurality of interference strength values is a third MIPI working frequency.
6. The method of any of claims 1-4, wherein, when adjusting the MIPI operating frequency of the display screen according to the third MIPI operating frequency, the method further comprises:
when the variation of the frame rate of the display screen after the MIPI frequency is switched is smaller than a first preset threshold value, determining a reference screen parameter value of the display screen according to a preset frame rate calculation formula and the third MIPI working frequency;
dynamically adjusting the screen parameters of the display screen according to the reference screen parameter values to obtain target screen parameter values, wherein the screen parameters include at least one of the following porch values in the preset frame rate calculation formula: horizontal back porch HBP, horizontal front porch HFP, vertical back porch VBP, vertical front porch VFP, width of vertical sync signal VSA, width of horizontal sync signal HAS.
7. The method of claim 6, wherein the screen parameters comprise horizontal screen parameters, the horizontal screen parameters comprising at least one of: the HBP, the HFP and the HAS;
the dynamically adjusting the screen parameter of the display screen according to the reference screen parameter value to obtain a target screen parameter value includes:
and dynamically adjusting horizontal screen parameters of the display screen according to the reference screen parameter values, so that the variation of the line scanning duration of the display screen after the MIPI frequency switching is smaller than a second preset threshold.
8. The utility model provides an electromagnetic interference controlling means which characterized in that is applied to electronic equipment, electronic equipment includes display screen and camera, electromagnetic interference controlling means includes:
the device comprises an acquisition unit, a processing unit and a processing unit, wherein the acquisition unit is used for acquiring a first Mobile Industry Processor Interface (MIPI) working frequency of the MIPI when the electronic equipment starts the camera; acquiring a second MIPI working frequency of the MIPI of the display screen mobile industry processor interface;
a determining unit, configured to determine whether the first MIPI operating frequency is interfered according to the second MIPI operating frequency;
the acquiring unit is further configured to acquire a frame rate and a resolution of the display screen when the first MIPI operating frequency is interfered, where the frame rate is a frame rate at which the display screen displays a shooting picture or shooting content, and the resolution is a resolution at which the display screen displays the shooting picture or the shooting content;
the determining unit is further configured to determine a third MIPI operating frequency according to the frame rate and the resolution, where interference generated by the third MIPI operating frequency on the first MIPI operating frequency is smaller than interference generated by the second MIPI operating frequency on the first MIPI operating frequency;
and the adjusting unit is used for adjusting the MIPI working frequency of the display screen according to the third MIPI working frequency.
9. 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 1-7.
10. 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 1-7.
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