CN117395979B

CN117395979B - Method, device, equipment and storage medium for preventing electromagnetic interference of display

Info

Publication number: CN117395979B
Application number: CN202311704642.5A
Authority: CN
Inventors: 罗德强
Original assignee: Shenzhen Hailuo Photoelectric Co ltd
Current assignee: Shenzhen Hailuo Photoelectric Co ltd
Priority date: 2023-12-13
Filing date: 2023-12-13
Publication date: 2024-03-15
Anticipated expiration: 2043-12-13
Also published as: CN117395979A

Abstract

The application discloses an anti-electromagnetic interference method, device, equipment and storage medium for a display, wherein the anti-electromagnetic interference method for the display comprises the following steps: if the starting of the display is detected, acquiring a starting picture of the display, and detecting whether the display is abnormally put in according to the starting picture; if no abnormality in display delivery is detected, acquiring display parameters of the display, and detecting whether the display is interfered according to the display parameters; if the display is determined to be interfered, acquiring the magnetic field intensity of the display, and determining whether the display is interfered by electromagnetic interference according to the magnetic field intensity; if the display is detected to be subjected to electromagnetic interference, performing electromagnetic interference prevention treatment on the display; the electromagnetic interference prevention process includes at least one of a first electromagnetic interference prevention process for a circuit in the display and a second electromagnetic interference prevention process for a loop area of a current of the display. Through the technical scheme that this application provided, can carry out electromagnetic interference detection voluntarily to prevent electromagnetic interference processing voluntarily.

Description

Method, device, equipment and storage medium for preventing electromagnetic interference of display

Technical Field

The present invention relates to the field of display technologies, and in particular, to a method, an apparatus, a device, and a storage medium for preventing electromagnetic interference of a display.

Background

With the continuous development of technology, displays have become an indispensable part of people's daily life. The display is widely applied to electronic equipment such as computers, mobile phones and televisions, and also widely applied to the fields of medical treatment, transportation, education and the like. However, the display may be affected by electromagnetic interference during use, resulting in poor display effect and even failure to operate properly. Electromagnetic interference refers to interference of external electromagnetic waves on the normal operation of a display. These electromagnetic waves may be emitted from devices such as a radio, a television, a mobile phone, and a computer, or may be emitted from power lines, electric devices, and the like. Electromagnetic interference can cause problems such as unclear display, color distortion, flickering and the like, and even cause equipment to work abnormally when serious.

A common electromagnetic interference prevention scheme is to block interference of external electromagnetic waves by using a shielding material. These shielding materials may be metallic or conductive materials that are effective in absorbing or reflecting electromagnetic waves, thereby reducing interference with the display. In the design of the display, a layer of shielding material can be added around the display screen to isolate the interference of external electromagnetic waves, so that the stability of the display effect is ensured, but more manpower and financial resources are increased.

Disclosure of Invention

The invention aims to provide an electromagnetic interference prevention method, device, equipment and storage medium for a display, and aims to solve the technical problem that more manpower and financial resources are required to be consumed to realize electromagnetic interference prevention in the prior art.

Other features and advantages of the present application will be apparent from the following detailed description, or may be learned in part by the practice of the application.

According to an aspect of an embodiment of the present application, there is provided an electromagnetic interference prevention method for a display, including:

if the starting of the display is detected, acquiring a starting picture of the display, and detecting whether the throwing of the display is abnormal or not according to the starting picture;

if no abnormality in the display delivery is detected, acquiring display parameters of the display, and detecting whether the display is interfered according to the display parameters;

if the display is determined to be interfered, acquiring the magnetic field intensity of the display, and determining whether the display is interfered by electromagnetic interference according to the magnetic field intensity;

if the display is detected to be subjected to electromagnetic interference, performing electromagnetic interference prevention treatment on the display; wherein the electromagnetic interference prevention process includes at least one of a first electromagnetic interference prevention process for a circuit in the display and a second electromagnetic interference prevention process for a loop area of a current of the display.

In another embodiment, the obtaining the start-up screen of the display, and detecting whether the delivery of the display is abnormal according to the start-up screen, includes:

acquiring the starting picture through a first image sensor, and acquiring a reference starting picture;

matching the starting picture with the reference starting picture;

if the starting picture is not matched with the reference starting picture, a first current playing picture is obtained through the first image sensor, and a second current playing picture is obtained through the second image sensor;

and detecting whether the display is abnormally put according to the first current playing picture and the second current playing picture.

In a further embodiment, the detecting whether the display is disturbed according to the display parameter comprises:

acquiring a display parameter type according to the display parameter, and determining a corresponding detection strategy according to the display parameter type;

and detecting whether the display is interfered according to the display parameters and the corresponding detection strategies.

In a further embodiment, the performing an electromagnetic interference prevention process on the display includes:

If the electromagnetic interference prevention processing is first electromagnetic interference prevention processing, switching an LED diode circuit in the display into a filter inductance circuit, and detecting whether the display is subjected to electromagnetic interference after switching is completed and reaches a preset time threshold;

if the display is subjected to electromagnetic interference, acquiring interference intensity and average magnetic field intensity, and detecting whether a closing condition for closing the display is met or not according to the interference intensity and the average magnetic field intensity;

and closing the display if the closing condition for closing the display is detected.

if the electromagnetic interference prevention processing is second electromagnetic interference prevention processing, acquiring an electromagnetic interference position;

switching a voltage converter of the display to a frequency modulation voltage converter, and planning a target current loop of the current of the display according to the electromagnetic interference position;

and switching a current loop of the display to the target current loop.

In a further embodiment, after the acquiring the electromagnetic interference location, the method further comprises:

if the electromagnetic interference position comprises a plurality of target high-frequency current loops of the high-frequency current of the display are planned according to the electromagnetic interference position;

Switching a high frequency current loop of the display to the target high frequency current loop.

In a further embodiment, said determining whether said display is subject to electromagnetic interference based on said magnetic field strength comprises:

acquiring the magnetic field intensity of at least one target position on the display, and acquiring the reference magnetic field intensity corresponding to the target position;

matching the magnetic field intensity of each target position with the corresponding reference magnetic field intensity;

and if the magnetic field intensity of at least one target position is not matched with the corresponding reference magnetic field intensity, determining that the display is subjected to electromagnetic interference.

According to an aspect of the embodiments of the present application, there is provided an electromagnetic interference prevention device for a display, including:

the first detection module is configured to acquire a starting picture of the display if the starting of the display is detected, and detect whether the display is abnormally put in according to the starting picture;

the second detection module is configured to acquire display parameters of the display if no abnormality in the display delivery is detected, and detect whether the display is interfered according to the display parameters;

the determining module is configured to acquire the magnetic field intensity of the display if the display is determined to be interfered, and determine whether the display is interfered by electromagnetic interference according to the magnetic field intensity;

The anti-electromagnetic interference processing module is configured to perform anti-electromagnetic interference processing on the display if the display is detected to be subjected to electromagnetic interference; wherein the electromagnetic interference prevention process includes at least one of a first electromagnetic interference prevention process for a circuit in the display and a second electromagnetic interference prevention process for a loop area of a current of the display.

According to an aspect of an embodiment of the present application, there is provided an electronic device including: one or more processors; and a storage device for storing one or more programs that, when executed by the one or more processors, cause the electronic device to implement the display electromagnetic interference prevention method as described above.

According to an aspect of embodiments of the present application, there is provided a computer-readable storage medium having stored thereon computer-readable instructions, which when executed by a processor of a computer, cause the computer to perform a display electromagnetic interference prevention method as described above.

According to an aspect of embodiments of the present application, there is provided a computer program product or computer program comprising computer instructions stored in a computer readable storage medium. The processor of the computer device reads the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions, so that the computer device performs the method for preventing electromagnetic interference of a display provided in the above-mentioned various alternative embodiments.

In the technical scheme provided by the embodiment of the application, the starting picture of the display is captured, and whether the display is put abnormally is detected according to the starting picture. After the display is determined to be released abnormally, whether the display is interfered is detected, and after the display is determined to be interfered, whether the display is interfered is further detected. If the display receives electromagnetic interference, the first electromagnetic interference prevention processing of the circuit in the display and/or the second electromagnetic interference prevention processing of the loop area of the current of the display are/is processed, and through the technical scheme provided by the embodiment of the application, an effective solution is provided for the problem that the display receives electromagnetic interference in the use process, whether the display receives electromagnetic interference can be automatically detected, the electromagnetic interference prevention processing is automatically carried out, higher manpower and financial resources are not required, the performance and stability of the display can be further improved, and better use experience is provided for people.

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

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description, serve to explain the principles of the application. It is apparent that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained from these drawings without inventive effort for a person of ordinary skill in the art. In the drawings:

FIG. 1 is a block diagram of an electromagnetic interference prevention system for a display according to the present application;

FIG. 2 is a flow chart of a method for preventing electromagnetic interference of a display according to the present application;

FIG. 3 is a flow chart of step S210 in one embodiment contemplated by the present application;

FIG. 4 is a flow chart of step S220 in one embodiment contemplated by the present application;

FIG. 5 is a flow chart of step S240 in one embodiment contemplated by the present application;

FIG. 6 is a flow chart of step S240 in one embodiment contemplated by the present application;

FIG. 7 is a flow chart of another method of preventing electromagnetic interference for a display according to the present application;

FIG. 8 is a flow chart of step S230 in one embodiment contemplated by the present application;

FIG. 9 is a block diagram of an electromagnetic interference prevention device for a display according to the present application;

fig. 10 shows a schematic diagram of a computer system suitable for use in implementing the electronic device of the embodiments of the present application.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples are not representative of all implementations consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present application as detailed in the accompanying claims.

The block diagrams depicted in the figures are merely functional entities and do not necessarily correspond to physically separate entities. That is, the functional entities may be implemented in software, or in one or more hardware modules or integrated circuits, or in different networks and/or processor devices and/or microcontroller devices.

The flow diagrams depicted in the figures are exemplary only, and do not necessarily include all of the elements and operations/steps, nor must they be performed in the order described. For example, some operations/steps may be decomposed, and some operations/steps may be combined or partially combined, so that the order of actual execution may be changed according to actual situations.

Also to be described is: reference to "a plurality" in this application means two or more than two. "and/or" describes an association relationship of an association object, meaning that there may be three relationships, e.g., a and/or B may represent: a exists alone, A and B exist together, and B exists alone. The character "/" generally indicates that the context-dependent object is an "or" relationship.

Referring to fig. 1, an embodiment of the present application provides an electromagnetic interference prevention system for a display, which includes a display anomaly detection module 110, a display interference detection module 120, a display electromagnetic interference detection module 130, a display electromagnetic interference prevention processing module 140, and a display module 150, and related descriptions of the modules are as follows:

the display abnormality detection module 110 controls the first image sensor to start after the display is normally powered on, and the first image sensor captures a start picture of the display. The display abnormality detection module 110 obtains a reference start-up screen according to the start time of the play start-up screen, and the reference start-up screen is built-in and is less affected by electromagnetic waves.

And matching the starting picture with the reference starting picture, if the pixel values of the pixel points of the starting picture and the reference starting picture are different, and the difference value between the pixel value of the reference starting picture and the pixel value of the starting picture is larger than the result of multiplying the pixel value of the starting picture by 0.5%, determining that the starting picture is not matched with the reference starting picture, judging that the display is probably abnormally put, controlling the second image sensor to start by the display abnormality detection module 110, and respectively capturing the display playing picture at the current moment by the first image sensor and the second image sensor to determine the first current playing picture and the second current playing picture. And matching the first current playing picture with the second current playing picture, and judging that the first image sensor is abnormal if the pixel values of the pixel points of the first current playing picture and the second current playing picture are different and the difference value between the pixel value of the first current playing picture and the pixel value of the second current playing picture is larger than the result that the pixel value of the second current playing picture is multiplied by 0.5%. The display abnormality detection module 110 sends abnormality information and vibration reminding to the mobile terminal held by the user, and controls the display to display reminding that the first image sensor is abnormal and timely replaced. If the first image sensor is powered on again and the processing is carried out again, if the pixel values of the pixel points of the first current playing picture and the second current playing picture obtained again are different, and the difference value between the pixel value of the first current playing picture and the pixel value of the second current playing picture is larger than the result that the pixel value of the second current playing picture is multiplied by 0.5%, the display is judged to be in abnormal throwing, abnormal information is sent to the mobile terminal of the user, vibration reminding is carried out, and the display is controlled to display reminding of the abnormal throwing image. If the pixel values of the pixel points of the first current playing picture and the second current playing picture are different, and the difference value between the pixel value of the first current playing picture and the pixel value of the second current playing picture is smaller than or equal to the result that the pixel value of the second current playing picture is multiplied by 0.5%, judging that the display delivery is not abnormal.

After determining that the display is released abnormally, the display interference detection module 120 captures a display playing picture through a normal first image sensor or a second image sensor when the display plays the picture, obtains a picture image, acquires the display playing picture in a normal state of the display at the current moment from the cloud, determines a reference picture image, calculates the similarity of the picture image and the reference picture image, if the similarity is smaller than a similarity threshold value, judges that the display is likely to be interfered, stores a first interference control command as 1, and if the similarity is larger than or equal to the similarity threshold value, judges that the display is temporarily not interfered, and stores the first interference control command as 0. The similarity threshold may be set to 98%.

The display interference detection module 120 controls the sound sensor of the display to start, and the sound sensor detects the playing sound frequency of the display at the current moment. The display interference detection module 120 obtains a reference playing sound frequency of a normal state of the display at the current moment from the cloud, divides an absolute value of a difference value between the playing sound frequency and the reference playing sound frequency by the reference playing sound frequency to obtain a sound interference judgment result, judges that the display is likely to be interfered when the sound interference judgment result is smaller than a sound interference judgment threshold value, stores a second interference control command as 1, judges that the display is temporarily not interfered when the sound interference judgment result is larger than or equal to the sound interference judgment threshold value, and stores the second interference control command as 0. The sound disturbance determination threshold may be set to 5%.

The sound sensor corresponds to a microphone for receiving sound waves and displaying a vibration image of the sound, but cannot measure the intensity of noise. The sensor incorporates a capacitive electret microphone that is sensitive to sound. The sound wave vibrates the electret film in the microphone, and causes a change in capacitance, thereby generating a minute voltage that changes in response thereto. This voltage is then converted to a voltage of 0-5V, is received by the data collector via a/D conversion, and is transmitted to the display disturbance detection module.

The display interference detection module 120 starts an air specific heat capacity tester, the air specific heat capacity tester detects a current air heat capacity value, a normal air heat capacity value of a current geographic position is obtained from a cloud end, the current air heat capacity value is matched with the normal air heat capacity value, if the current air heat capacity value is less than 76% of the normal air heat capacity value or is greater than 124% of the normal air heat capacity value, the air specific heat capacity test is judged to be abnormal, abnormal information and vibration reminding are sent to a mobile end, if the current air heat capacity value is greater than or equal to 76% of the normal air heat capacity value or is less than or equal to 124% of the normal air heat capacity value, the display interference detection module 120 obtains detection parameters of a display from the cloud end according to the display model, and the detection parameters comprise: chip temperature, thermal conductivity, and radial dimensions. The display interference detection module 120 controls the activation of an infrared temperature sensor, which detects the current ambient temperature and the current chip temperature at the current time. In a thermal equilibrium state, the current chip temperature T of the display based on the heat conduction theory and the ambient temperature T0 obey a heat conduction equation:

T, K, r is the current chip temperature, thermal conductivity and radial dimension, C _p Is the heat capacity of air, T ₀ Is ambient temperature. And calculating the normal chip temperature value of the current display according to the heat conduction equation. Matching the current chip temperature with a normal chip temperature value, judging that the display is possibly interfered if the normal chip temperature value is more than or equal to 135% of the current chip temperature, storing a third interference control command as 1, and judging that the display is not temporarily dry if the normal chip temperature is less than 135% of the current chip temperatureScrambling, save the third interference control command to 0.

The display electromagnetic interference detection module 130 controls the magnetic detector to start when determining that at least one of the first interference control command, the second interference control command and the third interference control command is 1, the magnetic detector detects the magnetic field intensity of the display chip, the circuit and the shell at the current moment, determines the magnetic field intensity as the first magnetic field intensity, the second magnetic field intensity and the third magnetic field intensity, acquires the magnetic field intensity of the display chip, the circuit and the shell in the normal use process, determines the magnetic field intensity as the first reference magnetic field intensity, the second reference magnetic field intensity and the third reference magnetic field intensity, and matches the first magnetic field intensity with the first reference magnetic field intensity, the second magnetic field intensity with the second reference magnetic field intensity and the third magnetic field intensity with the third reference magnetic field intensity. If the magnetic field intensity at the current moment is smaller than 123% of the reference magnetic field intensity and larger than 81% of the reference magnetic field intensity, the display is judged not to be subjected to electromagnetic interference. If the magnetic field intensity of the current time is greater than or equal to 123% of the reference magnetic field intensity or less than or equal to 81% of the reference magnetic field intensity, judging that the display is likely to be subjected to electromagnetic interference, detecting the magnetic field intensity of the display chip, the circuit and the shell in the current time period through the magnetic detector, wherein the current time period can comprise any time period within 30s from the current time, respectively calculating average values of the magnetic field intensity of the chip, the circuit and the shell in the current time period, and determining the average magnetic field intensity as a first average magnetic field intensity, a second average magnetic field intensity and a third average magnetic field intensity. The first average magnetic field strength is matched with the first reference magnetic field strength, the second average magnetic field strength is matched with the second reference magnetic field strength, and the third average magnetic field strength is matched with the third reference magnetic field strength. If the average magnetic field intensity in the current period is greater than or equal to 120% of the reference magnetic field intensity or less than or equal to 85% of the reference magnetic field intensity, the intelligent display system judges that the display is subjected to electromagnetic interference, the intelligent display system acquires interference conditions, determines interference intensity, the interference intensity comprises first interference intensity, second interference intensity and third interference intensity, the first interference intensity represents that one average magnetic field intensity greater than or equal to 120% of the reference magnetic field intensity or less than or equal to 85% of the reference magnetic field intensity exists in the average magnetic field intensity in the current period, the second interference intensity represents that two average magnetic field intensities greater than or equal to 120% of the reference magnetic field intensity or less than or equal to 85% of the reference magnetic field intensity exists in the average magnetic field intensity in the current period, and the third interference intensity represents that three average magnetic field intensities greater than or equal to 120% of the reference magnetic field intensity or less than or equal to 85% of the reference magnetic field intensity exist in the average magnetic field intensity in the current period. If all of the average magnetic field intensities in the current period are smaller than 120% of the reference magnetic field intensity and larger than 85% of the reference magnetic field intensity, judging that the display is not subjected to electromagnetic interference.

A magnetometric instrument is an instrument for detecting a magnetic field that can measure the strength, direction and distribution of the magnetic field. The principle of the magnetic detector is based on the theory of magnetic induction lines, namely the magnetic induction lines in a magnetic field are directional lines from a magnetic north pole to a magnetic south pole, and the density of the magnetic induction lines is in direct proportion to the strength of the magnetic field.

After the display is determined to be subjected to electromagnetic interference, the display anti-electromagnetic interference processing module 140 controls the LED diode circuit of the display to be switched into a filtering inductance circuit, when the current flowing through the inductance changes, the induced electromotive force generated in the inductance coil can prevent the change of the current, when the current passing through the inductance coil increases, the self-induced electromotive force generated by the inductance coil is opposite to the current direction, the increase of the current is prevented, and meanwhile, a part of electric energy is converted into magnetic field energy to be stored in the inductance; when the current passing through the inductance coil is reduced, the self-induced electromotive force is the same as the current direction, the reduction of the current is prevented, and stored energy is released at the same time to compensate for the reduction of the current, the pulsation of the load current and the voltage is reduced, the waveform becomes smooth, and the conduction angle of the rectifier diode is increased. After the switching is completed for 1min, the display electromagnetic interference detection module 130 is controlled to process, if the display is determined to have electromagnetic interference, the average magnetic field intensity re-determined by the display electromagnetic interference detection module 130 is obtained, whether the average magnetic field intensity value in the re-determined average magnetic field intensity is smaller than 180% of the reference magnetic field intensity or not is detected, the interference intensity is 3, if the average magnetic field intensity value is present, the display playing picture is closed, the display is switched to an interfered reminding picture, and the display is timely checked after the display is soundly reminded of the electromagnetic interference. If the current is not present, the electromagnetic interference position is detected through the magnetic detector, the voltage converter DCDC of the display is controlled to switch the frequency modulation voltage converter, and the loop area of the display circuit current is planned according to the electromagnetic interference position. If a plurality of electromagnetic interference positions exist, planning a loop area of the high-frequency current, completing planning to switch lines, completing switching for 1min, executing the display electromagnetic interference detection module 130 again, if the display is determined to still have electromagnetic interference, sending electromagnetic interference prevention abnormal information to the mobile terminal, and carrying out vibration reminding, and controlling the display to display the electromagnetic interference prevention abnormal reminding.

After determining that the display does not have electromagnetic interference, the display module 150 sends the display anti-electromagnetic interference data to the mobile terminal for display, and uploads the display anti-electromagnetic interference data to the cloud for storage.

In the embodiment of the present application, the processing is performed based on multithreading (multithreading), which refers to a technique of implementing multiple threads to execute concurrently from software or hardware. Computers with multithreading capability are capable of executing more than one thread at a time due to hardware support, thereby improving overall processing performance. Systems with this capability include symmetric multiprocessors (symmetric multiprocessing is a multiprocessor hardware architecture with two or more identical processors (processors) sharing the same main memory, controlled by an operating system), multicore processors, and chip-level multiprocessing or simultaneous multithreading processors.

Fig. 2 is a flow chart illustrating a method of preventing electromagnetic interference of a display according to an exemplary embodiment. The method can be applied to the system shown in fig. 1, and is specifically executed by the display electromagnetic interference prevention system in the environment of the embodiment shown in fig. 1.

As shown in fig. 2, in an exemplary embodiment, the method for preventing electromagnetic interference of a display may include steps S210 to S240, which are described in detail as follows:

Step S210, if the display is detected to be started, a starting picture of the display is obtained, and whether the display is put abnormally is detected according to the starting picture.

In the embodiment of the application, after the display is detected to be started, a starting picture of the display is obtained through the first image sensor, and whether the display is put abnormally is detected according to the starting picture.

Step S220, if no abnormality in the display delivery is detected, obtaining display parameters of the display, and detecting whether the display is interfered according to the display parameters.

In this embodiment of the present application, after detecting that there is no abnormality in delivery of the display, display parameters of the display are obtained, where the display parameters include at least one of a picture image, a play sound frequency, and a chip temperature. And detecting whether the display is disturbed or not according to the acquired display parameters.

Step S230, if it is determined that the display is interfered, acquiring the magnetic field strength of the display, and determining whether the display is interfered by electromagnetic interference according to the magnetic field strength.

In the embodiment of the application, after the display is determined to be interfered, the magnetic field intensity of the display is obtained, and whether the interference to the display is caused by the magnetic field is further determined according to the magnetic field intensity.

Step S240, if the display is detected to be subjected to electromagnetic interference, performing electromagnetic interference prevention treatment on the display; wherein the electromagnetic interference prevention process includes at least one of a first electromagnetic interference prevention process for a circuit in the display and a second electromagnetic interference prevention process for a loop area of a current of the display.

In this embodiment of the present application, if it is detected that the display is subjected to electromagnetic interference, the electromagnetic interference prevention process is performed on the display, where the electromagnetic interference prevention process includes a first electromagnetic interference prevention process on a circuit in the display and a second electromagnetic interference prevention process on a loop area of a current of the display. When the electromagnetic interference prevention process is performed on the display, one of the first electromagnetic interference prevention process or the second electromagnetic interference prevention process may be performed, or the first electromagnetic interference prevention process and the second electromagnetic interference prevention process may be performed simultaneously.

In the embodiment of the application, a starting picture of the display is captured, and whether the display is put abnormally is detected according to the starting picture. After the display is determined to be released abnormally, whether the display is interfered is detected, and after the display is determined to be interfered, whether the display is interfered is further detected. If the display receives electromagnetic interference, the first electromagnetic interference prevention processing of the circuit in the display and/or the second electromagnetic interference prevention processing of the loop area of the current of the display are/is processed, and through the technical scheme provided by the embodiment of the application, an effective solution is provided for the problem that the display receives electromagnetic interference in the use process, the performance and stability of the display can be further improved, and better use experience is provided for people.

In an exemplary embodiment of the present application, referring to fig. 3, in step S210, a start-up screen of the display is obtained, and whether the display is abnormally launched is detected according to the start-up screen, including steps S310 to S340, which are described in detail below:

step S310, acquiring the start-up screen through the first image sensor, and acquiring a reference start-up screen.

In the embodiment of the application, the first image sensor captures a starting picture of the display and acquires a built-in reference starting picture.

Step S320, matching the start-up screen with the reference start-up screen.

In the embodiment of the application, the starting picture is matched with the reference starting picture.

Step S330, if the starting frame is not matched with the reference starting frame, acquiring a first current playing frame through the first image sensor, and acquiring a second current playing frame through the second image sensor.

In this embodiment of the present application, the starting frame is matched with the reference starting frame, and if the pixel values of the pixel points of the starting frame and the reference starting frame are different, and the difference between the pixel value of the reference starting frame and the pixel value of the starting frame is greater than the result of multiplying the pixel value of the starting frame by 0.5%, it is determined that the starting frame is not matched with the reference starting frame. And after the starting picture is not matched with the reference starting picture, acquiring a first current playing picture and a second current playing picture.

Step S340, detecting whether the display is abnormally put according to the first current playing frame and the second current playing frame.

In this embodiment of the present application, the first current playing frame and the second current playing frame are matched, if the pixel values of the pixel points of the first current playing frame and the second current playing frame are different, and the difference between the pixel value of the first current playing frame and the pixel value of the second current playing frame is greater than the result that the pixel value of the second current playing frame is multiplied by 0.5%, the first image sensor is judged to be abnormal. If the first image sensor is powered on again and the processing is carried out again, if the pixel values of the pixel points of the first current playing picture and the second current playing picture obtained again are different, and the difference value between the pixel value of the first current playing picture and the pixel value of the second current playing picture is larger than the result that the pixel value of the second current playing picture is multiplied by 0.5%, judging that the display is abnormally put in; if the pixel values of the pixel points of the first current playing picture and the second current playing picture are different, and the difference value between the pixel value of the first current playing picture and the pixel value of the second current playing picture is smaller than or equal to the result that the pixel value of the second current playing picture is multiplied by 0.5%, judging that the display delivery is not abnormal.

In an exemplary embodiment of the present application, referring to fig. 4, in step S220, the detecting whether the display is disturbed according to the display parameter includes steps S410 to S420, which are described in detail as follows:

step S410, obtaining a display parameter type according to the display parameter, and determining a corresponding detection strategy according to the display parameter type.

In the embodiment of the application, the display parameter type is obtained according to the display parameter, the corresponding detection strategy is determined according to the display parameter type, and different display parameter types correspond to different detection strategies.

Step S420, detecting whether the display is interfered according to the display parameters and the corresponding detection strategies.

In the embodiment of the application, whether the display is interfered is detected according to the display parameters and the corresponding detection strategies. Specifically, when the display parameter type is an image frame, the corresponding detection strategy is: the method comprises the steps of capturing a playing picture of a display by a first image sensor or a second image sensor to obtain a picture image, obtaining the playing picture of the display in a normal state at the current moment from a cloud, determining a reference picture image, calculating the similarity between the picture image and the reference picture image, judging that the display is likely to be interfered if the similarity is smaller than a similarity threshold value, storing a first interference control command as 1, and judging that the display is temporarily not interfered if the similarity is larger than or equal to the similarity threshold value. The similarity threshold may be set to 98%.

When the display parameter type is the playing sound frequency, the corresponding detection strategy is: the sound sensor is started, and the sound sensor detects the playing sound frequency of the display at the current moment. The display interference detection module 120 obtains a reference playing sound frequency in a normal state of the display at the current moment from the cloud, divides an absolute value of a difference value between the playing sound frequency and the reference playing sound frequency by the reference playing sound frequency to obtain a sound interference judgment result, judges that the display is likely to be interfered when the sound interference judgment result is smaller than a sound interference judgment threshold value, stores a second interference control command as 1, judges that the display is not interfered temporarily when the sound interference judgment result is greater than or equal to the sound interference judgment threshold value, and can set the sound interference judgment threshold value as 5%.

When the display parameter type is the chip temperature, the corresponding detection strategy is: starting an air specific heat capacity tester, detecting a current air heat capacity value by the air specific heat capacity tester, acquiring a normal air heat capacity value of a current geographic position from a cloud end, matching the current air heat capacity value with the normal air heat capacity value, judging that the air specific heat capacity test is abnormal if the current air heat capacity value is less than 76% of the normal air heat capacity value or is greater than 124% of the normal air heat capacity value, sending abnormal information and vibration reminding to a mobile terminal, and if the current air heat capacity value is less than 76% of the normal air heat capacity value The air heat capacity value is greater than or equal to 76% of the normal air heat capacity value, or less than or equal to 124% of the normal air heat capacity value, and the display interference detection module 120 obtains detection parameters of the display from the cloud according to the display model, where the detection parameters include: chip temperature, thermal conductivity, and radial dimensions. The display interference detection module 120 controls the activation of an infrared temperature sensor, which detects the current ambient temperature and the current chip temperature at the current time. The current chip temperature T and the environment temperature T of the display based on the heat conduction theory under the heat balance state of the display ₀ Obeys the heat conduction equation:

t, K, r is the current chip temperature, thermal conductivity and radial dimension, C _p Is the heat capacity of air, T ₀ Is ambient temperature. And calculating the normal chip temperature value of the current display according to the heat conduction equation. And matching the current chip temperature with a normal chip temperature value, judging that the display is likely to be interfered if the normal chip temperature value is more than or equal to 135% of the current chip temperature, storing a third interference control command as 1, and judging that the display is not interfered temporarily if the normal chip temperature value is less than 135% of the current chip temperature.

In an exemplary embodiment of the present application, referring to fig. 5, the anti-electromagnetic interference processing for the display in step S240 includes steps S510 to S530, which are described in detail as follows:

step S510, if the electromagnetic interference prevention process is the first electromagnetic interference prevention process, the LED diode circuit in the display is switched to a filter inductance circuit, and after the switching is completed, whether the display is subjected to electromagnetic interference is detected.

In the embodiment of the application, the LED diode circuit of the control display is switched into the filter inductance circuit, when the current flowing through the inductance changes, the induced electromotive force generated in the inductance coil can prevent the current from changing, when the current passing through the inductance coil increases, the self-induced electromotive force generated by the inductance coil is opposite to the current direction, the increase of the current is prevented, and meanwhile, a part of electric energy is converted into magnetic field energy to be stored in the inductance; when the current passing through the inductance coil is reduced, the self-induced electromotive force is the same as the current direction, the reduction of the current is prevented, and stored energy is released at the same time to compensate for the reduction of the current, the pulsation of the load current and the voltage is reduced, the waveform becomes smooth, and the conduction angle of the rectifier diode is increased. After the switching is completed for 1min, it is again detected whether the display is subject to electromagnetic interference.

Step S520, if the display is subject to electromagnetic interference, obtaining an interference intensity and an average magnetic field intensity, and detecting whether a closing condition for closing the display is reached according to the interference intensity and the average magnetic field intensity.

In this embodiment of the present application, if it is determined that the display still has electromagnetic interference, a redetermined average magnetic field strength is obtained, and then whether the redetermined average magnetic field strength has an average magnetic field strength value less than 180% of the reference magnetic field strength and an interference strength of 3 is detected, if the redetermined average magnetic field strength has an average magnetic field strength value less than 180% of the reference magnetic field strength and an interference strength of 3, it is determined that a closing condition of the display is reached.

Step S530, if it is detected that the closing condition for closing the display is reached, closing the display.

In the embodiment of the application, the display is turned off when the display is determined to be turned off. Further, the display playing picture is closed, the display is switched to the disturbed reminding picture, and the display is timely checked when the sound reminding is carried out and the electromagnetic disturbance is received.

In an exemplary embodiment of the present application, referring to fig. 6, the anti-electromagnetic interference processing for the display in step S240 includes steps S610 to S630, which are described in detail as follows:

In step S610, if the electromagnetic interference prevention process is the second electromagnetic interference prevention process, an electromagnetic interference position is obtained.

In the embodiment of the application, in the second electromagnetic interference prevention processing, the electromagnetic interference position is detected by a magnetic detector.

Step S620, switching the voltage converter of the display to a fm voltage converter, and planning a target current loop of the current of the display according to the electromagnetic interference position.

In the embodiment of the application, the voltage converter DCDC of the display is switched to the frequency modulation voltage converter, and a current loop of the display is planned according to the electromagnetic interference position. Specifically, the display is provided with a plurality of current loops, and if planning is performed, the current loop which is farthest from the electromagnetic interference position is selected as the target current loop.

Step S630, switching the current loop of the display to the target current loop.

In the embodiment of the application, a current loop of the display is switched to a determined target current loop.

In an exemplary embodiment of the present application, referring to fig. 7, after the electromagnetic interference position is obtained in step S610, the method further includes steps S710 to S720, which are described in detail below:

step S710, if the electromagnetic interference positions include a plurality of electromagnetic interference positions, planning a target high-frequency current loop of the high-frequency current of the display according to the electromagnetic interference positions.

In this embodiment of the present application, if there are multiple electromagnetic interference positions, a loop area of the high-frequency current is planned, so that the planned target high-frequency current loop is far away from each electromagnetic interference position.

Step S720, switching the high-frequency current loop of the display to the target high-frequency current loop.

In the embodiment of the application, the high-frequency current loop of the display is switched to the target high-frequency current loop.

In an exemplary embodiment of the present application, referring to fig. 8, in step S230, determining whether the display is subject to electromagnetic interference according to the magnetic field strength includes steps S810 to S830, which are described in detail below:

step S830, acquiring the magnetic field intensity of at least one target position on the display, and acquiring the reference magnetic field intensity corresponding to the target position.

In the embodiment of the application, some positions on the display are designated as target positions in advance, the magnetic field intensity of the target positions is acquired through the magnetic detector, and then the reference magnetic field intensity corresponding to each target position is acquired, wherein the reference magnetic field intensity is the magnetic field intensity of each target position in a normal state. If the display chip, the circuit and the shell are designated as target positions, the magnetic field intensity of the display chip is acquired as first magnetic field intensity, the magnetic field intensity of the acquired circuit is acquired as second magnetic field intensity, the magnetic field intensity of the acquired shell is acquired as third magnetic field intensity, the reference magnetic field intensity of the display chip, the circuit and the shell is acquired, and the reference magnetic field intensity is determined as first reference magnetic field intensity, second reference magnetic field intensity and third reference magnetic field intensity.

Step S830, matching the magnetic field intensity of each target position with the corresponding reference magnetic field intensity.

In this embodiment, the magnetic field strength of each target position is matched with the corresponding reference magnetic field strength, for example, the first magnetic field strength is matched with the first reference magnetic field strength, the second magnetic field strength is matched with the second reference magnetic field strength, and the third magnetic field strength is matched with the third reference magnetic field strength.

Step S830, if the magnetic field strength of at least one target position does not match the corresponding reference magnetic field strength, determining that the display is subject to electromagnetic interference.

In this embodiment of the present application, if at least one of the magnetic field intensities of the target positions is not matched with the corresponding reference magnetic field intensity, it is determined that the display is subjected to electromagnetic interference. If the magnetic field intensity of the current time is greater than or equal to 123% of the reference magnetic field intensity or less than or equal to 81% of the reference magnetic field intensity, judging that the display is likely to be subjected to electromagnetic interference, detecting the magnetic field intensity of the display chip, the circuit and the shell in the current time period through the magnetic detector, wherein the current time period can comprise any time period within 30s from the current time, respectively calculating average values of the magnetic field intensity of the chip, the circuit and the shell in the current time period, and determining the average magnetic field intensity as a first average magnetic field intensity, a second average magnetic field intensity and a third average magnetic field intensity. The first average magnetic field strength is matched with the first reference magnetic field strength, the second average magnetic field strength is matched with the second reference magnetic field strength, and the third average magnetic field strength is matched with the third reference magnetic field strength. And if the average magnetic field intensity in the current period is greater than or equal to 120% of the reference magnetic field intensity or less than or equal to 85% of the reference magnetic field intensity, judging that the display is subjected to electromagnetic interference.

In an exemplary embodiment of the present application, referring to fig. 9, fig. 9 is a display electromagnetic interference preventing device according to an exemplary embodiment, including:

the first detection module 910 is configured to obtain a start-up screen of the display if the start-up of the display is detected, and detect whether the delivery of the display is abnormal according to the start-up screen;

the second detection module 920 is configured to obtain a display parameter of the display if no abnormality in delivery of the display is detected, and detect whether the display is interfered according to the display parameter;

a determining module 930 configured to obtain a magnetic field strength of the display if it is determined that the display is interfered, and determine whether the display is interfered according to the magnetic field strength;

an anti-electromagnetic interference processing module 940 configured to perform anti-electromagnetic interference processing on the display if it is detected that the display is subject to electromagnetic interference; wherein the electromagnetic interference prevention process includes at least one of a first electromagnetic interference prevention process for a circuit in the display and a second electromagnetic interference prevention process for a loop area of a current of the display.

In one exemplary embodiment of the present application, the first detection module 910 includes:

the first acquisition submodule is configured to acquire the starting picture through the first image sensor and acquire a reference starting picture;

a first matching sub-module configured to match the start-up screen with the reference start-up screen;

a second obtaining sub-module configured to obtain a first current playing picture through the first image sensor and obtain a second current playing picture through the second image sensor if the starting picture is not matched with the reference starting picture;

the first detection submodule is configured to detect whether the display is abnormally put according to the first current playing picture and the second current playing picture.

In an exemplary embodiment of the present application, the second detection module 920 includes:

the third acquisition sub-module is configured to acquire a display parameter type according to the display parameter, and determine a corresponding detection strategy according to the display parameter type;

and the second detection submodule is configured to detect whether the display is interfered according to the display parameters and the corresponding detection strategies.

In one exemplary embodiment of the present application, the anti-electromagnetic interference processing module 940 includes:

the first switching sub-module is configured to switch the LED diode circuit in the display into a filter inductance circuit if the electromagnetic interference prevention processing is first electromagnetic interference prevention processing, and detect whether the display is subjected to electromagnetic interference after the switching is completed and reaches a preset time threshold;

the third detection submodule is configured to acquire interference intensity and average magnetic field intensity if the display is subjected to electromagnetic interference, and detect whether a closing condition for closing the display is met or not according to the interference intensity and the average magnetic field intensity;

and the closing sub-module is configured to close the display if the closing condition for closing the display is detected.

a fourth obtaining sub-module configured to obtain an electromagnetic interference position if the electromagnetic interference prevention process is a second electromagnetic interference prevention process;

the second switching sub-module is configured to switch the voltage converter of the display into a frequency modulation voltage converter and plan a target current loop of the current of the display according to the electromagnetic interference position;

And a third switching sub-module configured to switch a current loop of the display to the target current loop.

In one exemplary embodiment of the present application, the display anti-electromagnetic interference processing module 140940 further includes:

a planning sub-module configured to plan a target high-frequency current loop of a high-frequency current of the display according to the electromagnetic interference location if the electromagnetic interference location includes a plurality of;

and a fourth switching sub-module configured to switch a high frequency current loop of the display to the target high frequency current loop.

In one exemplary embodiment of the present application, the determining module 930 includes:

a fifth obtaining sub-module configured to obtain a magnetic field strength of at least one target position on the display, and obtain a reference magnetic field strength corresponding to the target position;

a second matching sub-module configured to match the magnetic field strength of each target position with the corresponding reference magnetic field strength;

a determination sub-module configured to determine that the display is subject to electromagnetic interference if a magnetic field strength of at least one of the target locations does not match a corresponding reference magnetic field strength.

It should be noted that, the apparatus provided in the foregoing embodiments and the method provided in the foregoing embodiments belong to the same concept, and the specific manner in which each module and unit perform the operation has been described in detail in the method embodiments, which is not repeated herein.

The embodiment of the application also provides electronic equipment, which comprises: one or more processors; and the storage device is used for storing one or more programs, and when the one or more programs are executed by the one or more processors, the electronic equipment realizes the display electromagnetic interference prevention method provided in the various embodiments.

It should be noted that, the computer system 1000 of the electronic device shown in fig. 10 is only an example, and should not impose any limitation on the functions and the application scope of the embodiments of the present application.

As shown in fig. 10, the computer system 1000 includes a central processing unit (Central Processing Unit, CPU) 1001 that can perform various appropriate actions and processes, such as performing the method described in the above embodiment, according to a program stored in a Read-Only Memory (ROM) 1002 or a program loaded from a storage section 1008 into a random access Memory (Random Access Memory, RAM) 1003. In the RAM 1003, various programs and data required for system operation are also stored. The CPU 1001, ROM 1002, and RAM 1003 are connected to each other by a bus 1004. An Input/Output (I/O) interface 1005 is also connected to bus 1004.

The following components are connected to the I/O interface 1005: an input section 1006 including a keyboard, a mouse, and the like; an output portion 1007 including a Cathode Ray Tube (CRT), a liquid crystal display (Liquid Crystal Display, LCD), and a speaker; a storage portion 1008 including a hard disk or the like; and a communication section 1009 including a network interface card such as a LAN (Local Area Network ) card, a modem, or the like. The communication section 1009 performs communication processing via a network such as the internet. The drive 1010 is also connected to the I/O interface 1005 as needed. A removable medium 1011, such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, or the like, is installed on the drive 1010 as needed, so that a computer program read out therefrom is installed into the storage section 1008 as needed.

In particular, according to embodiments of the present application, the processes described above with reference to flowcharts may be implemented as computer software programs. For example, embodiments of the present application include a computer program product comprising a computer program embodied on a computer readable medium, the computer program comprising a computer program for performing the method shown in the flowchart. In such an embodiment, the computer program may be downloaded and installed from a network via the communication portion 1009, and/or installed from the removable medium 1011. When executed by a Central Processing Unit (CPU) 1001, the computer program performs various functions defined in the system of the present application.

It should be noted that, the computer readable medium shown in the embodiments of the present application may be a computer readable signal medium or a computer readable storage medium, or any combination of the two. The computer readable storage medium may be, for example, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination thereof. More specific examples of the computer-readable storage medium may include, but are not limited to: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-Only Memory (ROM), an erasable programmable read-Only Memory (Erasable Programmable Read Only Memory, EPROM), a flash Memory, an optical fiber, a portable compact disc read-Only Memory (CD-ROM), an optical storage device, a computer-readable medium illustrated in embodiments of the present application may be a computer-readable signal medium or a computer-readable storage medium, or any combination of the two. The computer readable storage medium may be, for example, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination thereof. More specific examples of the computer-readable storage medium may include, but are not limited to: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-Only Memory (ROM), an erasable programmable read-Only Memory (Erasable Programmable Read Only Memory, EPROM), flash Memory, an optical fiber, a portable compact disc read-Only Memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In the context of this document, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device. In the present application, however, a computer-readable signal medium may include a data signal propagated in baseband or as part of a carrier wave, with a computer-readable computer program embodied therein. Such a propagated data signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination of the foregoing. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device. A computer program embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to: wireless, wired, etc., or any suitable combination of the foregoing.

The flowcharts and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present application. Where each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams or flowchart illustration, and combinations of blocks in the block diagrams or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.

The units involved in the embodiments of the present application may be implemented by means of software, or may be implemented by means of hardware, and the described units may also be provided in a processor. Wherein the names of the units do not constitute a limitation of the units themselves in some cases.

Another aspect of the present application also provides a computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements a method as described above. The computer-readable storage medium may be included in the electronic device described in the above embodiment or may exist alone without being incorporated in the electronic device.

Another aspect of the present application also provides a computer program product or computer program comprising computer instructions stored in a computer readable storage medium. The processor of the computer device reads the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions, so that the computer device performs the methods provided in the above-described respective embodiments.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims

1. A method for preventing electromagnetic interference of a display, comprising:

if the display is detected to be subjected to electromagnetic interference, performing electromagnetic interference prevention treatment on the display; wherein the electromagnetic interference prevention process includes at least one of a first electromagnetic interference prevention process for a circuit in the display and a second electromagnetic interference prevention process for a loop area of a current of the display;

wherein said detecting whether the display is disturbed according to the display parameters comprises:

Detecting whether the display is interfered according to the display parameters and the corresponding detection strategies;

the detecting whether the display is interfered according to the display parameters and the corresponding detection strategies comprises:

when the display parameter type is the chip temperature, the corresponding detection strategy is: starting an air specific heat capacity tester to detect a current air heat capacity value, acquiring a normal air heat capacity value of a current geographic position from a cloud end, and matching the current air heat capacity value with the normal air heat capacity value;

if the current air heat capacity value is greater than or equal to 76% of the normal air heat capacity value or less than or equal to 124% of the normal air heat capacity value, acquiring detection parameters of the display from the cloud according to the display model, wherein the detection parameters comprise: chip temperature, thermal conductivity and radial dimensions;

controlling an infrared temperature sensor to start to detect the ambient temperature at the current moment and the current chip temperature;

inputting the chip temperature, the heat conductivity coefficient and the radial dimension into a heat conduction equation to calculate a normal chip temperature value of the current display, and matching the current chip temperature with the normal chip temperature value;

if the normal chip temperature value is more than or equal to 135% of the current chip temperature, judging that the display is interfered.

2. The method for preventing electromagnetic interference of a display according to claim 1, wherein the steps of obtaining a start-up screen of the display, and detecting whether the display is abnormally launched according to the start-up screen, include:

matching the starting picture with the reference starting picture;

3. The method for preventing electromagnetic interference of a display according to claim 1, wherein the performing the electromagnetic interference prevention process on the display includes:

4. The method for preventing electromagnetic interference of a display according to claim 1, wherein the performing the electromagnetic interference prevention process on the display includes:

and switching a current loop of the display to the target current loop.

5. The method of preventing electromagnetic interference of a display of claim 4, wherein after the acquiring the electromagnetic interference location, the method further comprises:

6. The method of any one of claims 1 to 5, wherein determining whether the display is subject to electromagnetic interference based on the magnetic field strength comprises:

7. An electromagnetic interference prevention device for a display, comprising:

The anti-electromagnetic interference processing module is configured to perform anti-electromagnetic interference processing on the display if the display is detected to be subjected to electromagnetic interference; wherein the electromagnetic interference prevention process includes at least one of a first electromagnetic interference prevention process for a circuit in the display and a second electromagnetic interference prevention process for a loop area of a current of the display;

wherein, the second detection module includes:

a second detection sub-module configured to detect whether the display is disturbed according to the display parameters and the corresponding detection policies;

a second detection sub-module comprising:

8. An electronic device, comprising:

one or more processors;

storage means for storing one or more programs that, when executed by the one or more processors, cause the electronic device to implement the display electromagnetic interference prevention method of any of claims 1-6.

9. A computer readable storage medium having stored thereon computer readable instructions which, when executed by a processor of a computer, cause the computer to perform the method of shielding a display of any of claims 1 to 6.