阅读说明：本技术 区域背光的调节方法、装置和存储介质 (Method and device for adjusting regional backlight and storage medium ) 是由 柯杰燕 于 2019-09-18 设计创作，主要内容包括：本发明公开了一种区域背光的调节方法。该方法包括：接收待显示的当前帧；根据上一帧的背光亮度数据计算当前帧的每一分区的背光亮度数据；基于计算所得的背光亮度数据调整背光亮度,并将所述当前帧的数据传输到显示端以显示所述当前帧。本发明还公开了一种区域背光的调节装置及计算机可读存储介质。本发明能够减少画面亮度突变,出现闪烁的问题。(The invention discloses a regional backlight adjusting method. The method comprises the following steps: receiving a current frame to be displayed; calculating the backlight brightness data of each partition of the current frame according to the backlight brightness data of the previous frame; and adjusting the backlight brightness based on the calculated backlight brightness data, and transmitting the data of the current frame to a display end to display the current frame. The invention also discloses a device for adjusting the regional backlight and a computer readable storage medium. The invention can reduce the problems of sudden change of the brightness of the picture and flicker.)

1. An adjusting method of area backlight, characterized in that the adjusting method of area backlight comprises the following steps:

receiving a current frame to be displayed;

calculating the backlight brightness data of each partition of the current frame according to the backlight brightness data of the previous frame;

and adjusting the backlight brightness based on the calculated backlight brightness data, and transmitting the data of the current frame to a display end to display the current frame.

2. The method for adjusting area backlight according to claim 1, wherein the step of calculating the backlight luminance data of each partition of the current frame based on the backlight luminance data of the previous frame comprises:

respectively calculating the regional backlight brightness of the current frame and the regional backlight brightness of the previous frame according to the current frame and the previous frame;

and calculating the display backlight brightness of the current frame according to the regional backlight brightness of the current frame and the regional backlight brightness of the previous frame according to a preset formula.

3. The method for adjusting area backlight according to claim 3, wherein the preset formula is:

P＝L1+(L2-L1)*M

wherein P is the display backlight brightness of the current frame, L1 is the regional backlight brightness of the previous frame, L2 is the regional backlight brightness of the current frame, and M is the preset weight value corresponding to each frame of image.

4. The method for adjusting regional backlight according to claim 2, wherein the step of calculating the regional backlight brightness of the current frame and the regional backlight brightness of the previous frame according to the current frame and the previous frame respectively comprises:

respectively obtaining a display picture of the current frame and a display picture of the previous frame according to the current frame and the previous frame;

and respectively calculating the regional backlight brightness of the current frame and the regional backlight brightness of the previous frame according to the display picture of the current frame and the display picture of the previous frame.

5. The method as claimed in any one of claims 1 to 4, wherein said calculating the backlight luminance data of each partition of the current frame according to the backlight luminance data of the previous frame further comprises:

and storing the calculated backlight brightness data in a preset cache space.

6. The method for adjusting area backlight according to claim 5, wherein the step of storing the calculated backlight brightness data in a preset buffer space comprises:

and updating the calculated backlight brightness data to the buffer space to replace the backlight brightness data of the previous frame.

7. The method as claimed in claim 1, wherein the step of adjusting the backlight brightness based on the calculated backlight brightness data after calculating the backlight brightness data of each partition of the current frame according to the backlight brightness data of the previous frame, and before transmitting the data of the current frame to the display end for displaying the current frame further comprises:

the next frame to be displayed is received.

8. The method as claimed in claim 1, wherein the step of receiving the backlight luminance data of each partition of the current frame after the current frame to be displayed and before the step of calculating the backlight luminance data of each partition of the current frame according to the backlight luminance data of the previous frame further comprises:

and storing the data of the current frame in a preset space.

9. An area backlight adjusting device, comprising: memory, processor and a program for adjusting a zone backlight stored on the memory and executable on the processor, the program for adjusting a zone backlight when executed by the processor implementing the steps of the method for adjusting a zone backlight according to any one of claims 1 to 8.

10. A computer-readable storage medium, characterized in that the computer-readable storage medium has stored thereon an adjustment program of a regional backlight, which when executed by a processor implements the steps of the adjustment method of a regional backlight according to any one of claims 1 to 8.

Technical Field

The present invention relates to the field of television display technologies, and in particular, to a method and an apparatus for adjusting regional backlight, and a computer-readable storage medium.

Background

Energy saving, i.e. image quality improvement, is a continuous innovation-pursuing field in the color television industry. With the spread of lcd tvs, the local backlight adjustment technology becomes one of the best technologies integrating energy saving and image quality improvement. The regional backlight of the television means that the backlight brightness of different regions of the display interface is different, and the backlight brightness is adjusted according to the picture content of the display interface, so that the regional backlight of the television has a good visual effect, and meanwhile, the regional backlight of the television can save energy and improve the energy-saving efficiency of the television.

However, currently, the adjustment of the regional backlight of the television is actually performed in a manner of displaying a picture first and then adjusting the background of the television according to the displayed picture, and the adjustment of the backlight of the television has a certain delay lag relative to the displayed picture. The mode of displaying the picture first and then adjusting the picture has no influence on the picture which is switched slowly, but for the picture which is switched quickly and moves quickly, backlight delay occurs, even opposite backlight effect sometimes occurs, poor visual experience is generated for the user, and the viewing experience of the user is influenced.

Disclosure of Invention

The invention mainly aims to provide a method and a device for adjusting regional backlight and a computer readable storage medium, aiming at reducing the problem that flicker occurs due to sudden change of the brightness of a picture.

In order to achieve the above object, the present invention provides a method for adjusting an area backlight, which includes the following steps:

receiving a current frame to be displayed;

calculating the backlight brightness data of each partition of the current frame according to the backlight brightness data of the previous frame;

and adjusting the backlight brightness based on the calculated backlight brightness data, and transmitting the data of the current frame to a display end to display the current frame.

Optionally, the step of calculating the backlight brightness data of each partition of the current frame according to the backlight brightness data of the previous frame includes:

respectively calculating the regional backlight brightness of the current frame and the regional backlight brightness of the previous frame according to the current frame and the previous frame;

and calculating the display backlight brightness of the current frame according to the regional backlight brightness of the current frame and the regional backlight brightness of the previous frame according to a preset formula.

Optionally, the preset formula is:

P＝L1+(L2-L1)*M

wherein P is the display backlight brightness of the current frame, L1 is the regional backlight brightness of the previous frame, L2 is the regional backlight brightness of the current frame, and M is the preset weight value corresponding to each frame of image.

Optionally, the step of calculating the regional backlight brightness of the current frame and the regional backlight brightness of the previous frame according to the current frame and the previous frame respectively includes:

respectively obtaining a display picture of the current frame and a display picture of the previous frame according to the current frame and the previous frame;

and respectively calculating the regional backlight brightness of the current frame and the regional backlight brightness of the previous frame according to the display picture of the current frame and the display picture of the previous frame.

Optionally, the calculating the backlight luminance data of each partition of the current frame according to the backlight luminance data of the previous frame further includes:

and storing the calculated backlight brightness data in a preset cache space.

Optionally, the step of storing the calculated backlight brightness data in a preset buffer space specifically includes:

and updating the calculated backlight brightness data to the buffer space to replace the backlight brightness data of the previous frame.

Optionally, after the calculating the backlight luminance data of each partition of the current frame according to the backlight luminance data of the previous frame, adjusting the backlight luminance based on the calculated backlight luminance data, and before transmitting the data of the current frame to the display end to display the current frame, the method further includes:

the next frame to be displayed is received.

Optionally, after receiving the current frame to be displayed and before calculating the backlight brightness data of each partition of the current frame according to the backlight brightness data of the previous frame, the method further includes:

and storing the data of the current frame in a preset space.

In addition, to achieve the above object, the present invention further provides an area backlight adjusting device, including: the adjusting method comprises the steps of a memory, a processor and an area backlight adjusting program which is stored on the memory and can run on the processor, wherein the area backlight adjusting program realizes the steps of the area backlight adjusting method when being executed by the processor.

Further, to achieve the above object, the present invention also provides a computer readable storage medium having stored thereon an adjustment program of an area backlight, which when executed by a processor, implements the steps of the adjustment method of an area backlight described above.

The invention provides a method and a device for adjusting regional backlight and a computer storage medium. In the method, a current frame to be displayed is received; calculating the backlight brightness data of each partition of the current frame according to the backlight brightness data of the previous frame; and adjusting the backlight brightness based on the calculated backlight brightness data, and transmitting the data of the current frame to a display end to display the current frame. By the mode, the backlight brightness data of each partition of the current frame can be calculated according to the backlight brightness data of the previous frame after the current frame is obtained, and the current frame is displayed after the backlight regulation is finished according to the backlight brightness data of the current frame, so that the display of the current frame is consistent with the display of the required backlight brightness, and the problem of image backlight delay caused by backlight regulation after the display is avoided; meanwhile, the system can calculate the optimal backlight display scheme according to the regional backlight of the upper display frame and the lower display frame, so that the poor experience effects such as inconsistent brightness and darkness and flickering during rapid movement or switching of pictures are avoided, the experience of the user is greatly improved, and the visual experience of the user is enhanced.

Drawings

FIG. 1 is a schematic diagram of an apparatus in a hardware operating environment according to an embodiment of the present invention;

FIG. 2 is a flowchart illustrating a method for adjusting area backlight according to a first embodiment of the present invention;

FIG. 3 is a flowchart illustrating a second embodiment of a method for adjusting area backlight according to the present invention;

FIG. 4 is a flowchart illustrating a third embodiment of a method for adjusting area backlight according to the present invention;

FIG. 5 is a flowchart illustrating a fourth embodiment of a method for adjusting area backlight according to the present invention;

FIG. 6 is a flowchart illustrating a fifth exemplary embodiment of a method for adjusting area backlight according to the present invention;

FIG. 7 is a flowchart illustrating a method for adjusting area backlight according to a sixth embodiment of the present invention;

fig. 8 is a schematic view illustrating a display effect of the area backlight adjusting method according to the first embodiment of the present invention.

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As shown in fig. 1, fig. 1 is a schematic device structure diagram of a hardware operating environment according to an embodiment of the present invention.

The terminal of the embodiment of the invention can be a PC, and can also be a terminal device with a data processing function, such as a smart phone, a tablet computer, a portable computer and the like.

As shown in fig. 1, the terminal may include: a processor 1001, such as a CPU, a network interface 1004, a user interface 1003, a memory 1005, a communication bus 1002. Wherein a communication bus 1002 is used to enable connective communication between these components. The user interface 1003 may include a Display screen (Display), an input unit such as a Keyboard (Keyboard), and the optional user interface 1003 may also include a standard wired interface, a wireless interface. The network interface 1004 may optionally include a standard wired interface, a wireless interface (e.g., WI-FI interface). The memory 1005 may be a high-speed RAM memory or a non-volatile memory (e.g., a magnetic disk memory). The memory 1005 may alternatively be a storage device separate from the processor 1001.

Optionally, the terminal may further include a camera, a Radio Frequency (RF) circuit, a sensor, an audio circuit, a Wi-Fi module, and the like. Such as light sensors, motion sensors, and other sensors. Specifically, the light sensor may include an ambient light sensor that may adjust the brightness of the display screen according to the brightness of ambient light, and a proximity sensor that may turn off the display screen and/or the backlight when the mobile terminal is moved to the ear. As one of the motion sensors, the gravity acceleration sensor can detect the magnitude of acceleration in each direction (generally, three axes), detect the magnitude and direction of gravity when the mobile terminal is stationary, and can be used for applications (such as horizontal and vertical screen switching, related games, magnetometer attitude calibration), vibration recognition related functions (such as pedometer and tapping) and the like for recognizing the attitude of the mobile terminal; of course, the mobile terminal may also be configured with other sensors such as a gyroscope, a barometer, a hygrometer, a thermometer, and an infrared sensor, which are not described herein again.

Those skilled in the art will appreciate that the terminal structure shown in fig. 1 is not intended to be limiting and may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components.

As shown in fig. 1, a memory 1005, which is a kind of computer storage medium, may include therein an operating system, a network communication module, a user interface module, and a regional backlight adjustment program.

In the terminal shown in fig. 1, the network interface 1004 is mainly used for connecting to a backend server and performing data communication with the backend server; the user interface 1003 is mainly used for connecting a client (user side) and performing data communication with the client; and the processor 1001 may be configured to call an adjusting program of the area backlight stored in the memory 1005, and perform the following operations:

receiving a current frame to be displayed;

calculating the backlight brightness data of each partition of the current frame according to the backlight brightness data of the previous frame;

and adjusting the backlight brightness based on the calculated backlight brightness data, and transmitting the data of the current frame to a display end to display the current frame.

Further, the processor 1001 may call the adjusting program of the area backlight stored in the memory 1005, and also perform the following operations:

the step of calculating the backlight brightness data of each partition of the current frame according to the backlight brightness data of the previous frame comprises:

respectively calculating the regional backlight brightness of the current frame and the regional backlight brightness of the previous frame according to the current frame and the previous frame;

and calculating the display backlight brightness of the current frame according to the regional backlight brightness of the current frame and the regional backlight brightness of the previous frame according to a preset formula.

Further, the processor 1001 may call the adjusting program of the area backlight stored in the memory 1005, and also perform the following operations:

the preset formula is as follows:

P＝L1+(L2-L1)*M

wherein P is the display backlight brightness of the current frame, L1 is the regional backlight brightness of the previous frame, L2 is the regional backlight brightness of the current frame, and M is the preset weight value corresponding to each frame of image.

Further, the processor 1001 may call the adjusting program of the area backlight stored in the memory 1005, and also perform the following operations:

the step of calculating the regional backlight brightness of the current frame and the regional backlight brightness of the previous frame according to the current frame and the previous frame respectively comprises the following steps:

respectively obtaining a display picture of the current frame and a display picture of the previous frame according to the current frame and the previous frame;

and respectively calculating the regional backlight brightness of the current frame and the regional backlight brightness of the previous frame according to the display picture of the current frame and the display picture of the previous frame.

Further, the processor 1001 may call the adjusting program of the area backlight stored in the memory 1005, and also perform the following operations:

after the calculating the backlight brightness data of each partition of the current frame according to the backlight brightness data of the previous frame, the method further comprises the following steps:

and storing the calculated backlight brightness data in a preset cache space.

Further, the processor 1001 may call the adjusting program of the area backlight stored in the memory 1005, and also perform the following operations:

the step of storing the calculated backlight brightness data in a preset buffer space specifically includes:

and updating the calculated backlight brightness data to the buffer space to replace the backlight brightness data of the previous frame.

Further, the processor 1001 may call the adjusting program of the area backlight stored in the memory 1005, and also perform the following operations:

the method for adjusting the backlight brightness of the current frame comprises the following steps of after calculating the backlight brightness data of each partition of the current frame according to the backlight brightness data of the previous frame, adjusting the backlight brightness based on the calculated backlight brightness data, and transmitting the data of the current frame to a display end to display the current frame, wherein the method further comprises the following steps:

the next frame to be displayed is received.

Further, the processor 1001 may call the adjusting program of the area backlight stored in the memory 1005, and also perform the following operations:

after receiving the current frame to be displayed and before calculating the backlight brightness data of each partition of the current frame according to the backlight brightness data of the previous frame, the method further comprises the following steps:

and storing the data of the current frame in a preset space.

The specific embodiment of the device for adjusting regional backlight of the present invention is substantially the same as the embodiments of the method for adjusting regional backlight described below, and will not be described herein again.

Referring to fig. 2, fig. 2 is a schematic flow chart of a first embodiment of a method for adjusting area backlight according to the present invention, where the method for adjusting area backlight includes:

step S100, receiving a current frame to be displayed;

in this embodiment, the method is applied to a display device, which may be a liquid crystal television, a display screen, a computer, or other image display devices. The display device has an area backlight function and can perform backlight adjustment. The display frame is a certain frame image in a video or other clips. A current frame to be displayed is received.

Step S200, calculating the backlight brightness data of each subarea of the current frame according to the backlight brightness data of the previous frame;

after receiving a current frame to be displayed, calculating backlight brightness data of each partition of the current frame according to the backlight brightness data of the previous frame. Specifically, the regional backlight brightness of the current frame and the regional backlight brightness of the previous frame may be calculated according to the current frame and the previous frame, and then the display backlight brightness of the current frame may be calculated according to a preset formula according to the regional backlight brightness of the current frame and the regional backlight brightness of the previous frame. The display backlight brightness is the backlight brightness data of the current frame.

Step S300, adjusting the backlight brightness based on the calculated backlight brightness data, and transmitting the data of the current frame to a display end to display the current frame.

After the display backlight brightness of the current frame is obtained, the backlight of the display device can be adjusted according to the display backlight brightness corresponding to the current frame, and the current frame is displayed after the backlight adjustment is completed. After the backlight of the display equipment is adjusted according to the display backlight brightness of the current frame, the current frame is displayed, so that the display frame is synchronous with the backlight corresponding to the display frame when being displayed, the problems of delay caused by the fact that the backlight is adjusted after the display frame is displayed do not exist, and the adjusting mode can provide better visual experience for users and enhance visual effect.

Specifically, referring to fig. 8, fig. 8 is a schematic diagram of display effect, and the embodiment will be described with reference to fig. 8.

The first line in fig. 8 is a request for a received display frame, and the second line is a display manner of a display frame in the related art. In the prior art, the display frame image is displayed first, and adjustment is performed, for example, a display request of the P1 display frame is received first, then the P1 display frame is displayed according to the display request, and after the display is completed, adjustment of the backlight for P1 is performed by L1. The third row is the display mode of the display frame of the present application. In the present application, a display request of a display frame is received, and then backlight adjustment is performed according to the display frame, and the display frame is displayed. If the display request of the P1 display frame is received, the backlight adjustment L1 of the PI display frame is carried out according to the P1 display frame, and after the adjustment is completed, the image display of the P1 display frame is carried out.

The invention provides a method and a device for adjusting regional backlight and a computer storage medium. In the method, a current frame to be displayed is received; calculating the backlight brightness data of each partition of the current frame according to the backlight brightness data of the previous frame; and adjusting the backlight brightness based on the calculated backlight brightness data, and transmitting the data of the current frame to a display end to display the current frame. By the mode, the backlight brightness data of each partition of the current frame can be calculated according to the backlight brightness data of the previous frame after the current frame is obtained, and the current frame is displayed after the backlight regulation is finished according to the backlight brightness data of the current frame, so that the display of the current frame is consistent with the display of the required backlight brightness, and the problem of image backlight delay caused by backlight regulation after the display is avoided; meanwhile, the system can calculate the optimal backlight display scheme according to the regional backlight of the upper display frame and the lower display frame, so that the poor experience effects such as inconsistent brightness and darkness and flickering during rapid movement or switching of pictures are avoided, the experience of the user is greatly improved, and the visual experience of the user is enhanced.

Referring to fig. 3, fig. 3 is a flowchart illustrating a method for adjusting area backlight according to a second embodiment of the present invention.

Based on the foregoing embodiment, in this embodiment, step S200 includes:

step S210, respectively calculating the regional backlight brightness of the current frame and the regional backlight brightness of the previous frame according to the current frame and the previous frame;

in this embodiment, first, according to the received current frame and the previous frame, the regional backlight brightness of the current frame and the regional backlight brightness of the previous frame are calculated respectively. The regional backlight brightness of the current frame and the regional backlight brightness of the previous frame are calculated according to the display image pictures of the current frame and the previous frame respectively, and of course, the regional backlight brightness of the current frame and the regional backlight brightness of the previous frame can also be calculated according to the image pixels of the current frame and the previous frame. There are many ways to calculate the backlight brightness of the display frame according to the image or pixel of the display frame, and the calculation process is the prior art and is not described herein again.

Step S220, calculating the display backlight brightness of the current frame according to the regional backlight brightness of the current frame and the regional backlight brightness of the previous frame according to a preset formula.

After obtaining the regional backlight brightness of the current frame and the regional backlight brightness of the previous frame, the display backlight brightness of the current frame may be calculated according to the following formula.

The preset formula is as follows:

P＝L1+(L2-L1)*M

wherein P is the display backlight brightness of the current frame, L1 is the regional backlight brightness of the previous frame, L2 is the regional backlight brightness of the current frame, and M is the preset weight value corresponding to each frame of image.

The display backlight brightness is obtained by performing certain regular weight according to the regional backlight brightness of the current frame and the regional backlight brightness of the previous frame, a better backlight brightness value of the display frame can be obtained, and the display backlight brightness is adjusted according to the backlight brightness value, so that the display backlight brightness has a better visual effect.

Referring to fig. 4, fig. 4 is a flowchart illustrating a third embodiment of a method for adjusting area backlight according to the present invention.

Based on the foregoing embodiment, in this embodiment, step S210 includes:

step S211, respectively obtaining a display picture of the current frame and a display picture of the previous frame according to the current frame and the previous frame;

in this embodiment, calculating the regional backlight brightness of the current frame and the regional backlight brightness of the previous frame may obtain the display picture of the current frame and the display picture of the previous frame respectively according to the previous display frame and the previous frame. The display frame of the current frame and the display frame of the previous frame reflect image content, for example, the display frame reflects image content of a tree, an animal, and the like.

Step S212, calculating the area backlight brightness of the current frame and the area backlight brightness of the previous frame according to the display frame of the current frame and the display frame of the previous frame.

After the display picture of the current frame and the display picture of the previous frame are obtained, the regional backlight brightness of the current frame and the regional backlight brightness of the previous frame are respectively calculated according to the display picture of the current frame and the display picture of the previous frame. Calculating the regional backlight brightness of the current frame and the regional backlight brightness of the previous frame according to the display picture of the current frame and the display picture of the previous frame respectively is the prior art, and details are not repeated here.

Referring to fig. 5, fig. 5 is a flowchart illustrating a regional backlight adjustment method according to a fourth embodiment of the present invention.

Based on the foregoing embodiment, in this embodiment, after step S200, the method further includes:

step S010, storing the calculated backlight brightness data in a preset cache space;

in this embodiment, a storage space for the display frame may be provided, and the storage space may be used to temporarily or permanently store the acquired display frame. After the backlight luminance data of each partition of the current frame is calculated according to the backlight luminance data of the previous frame, the calculated backlight luminance data may be stored in a preset buffer space.

Further, in this embodiment, the step S010 includes:

step S020, updating the calculated backlight brightness data in the buffer space to replace the backlight brightness data of the previous frame.

In this embodiment, while the calculated backlight luminance data is stored in the preset buffer space, the backlight luminance data of the current frame may be replaced or covered by the backlight luminance data of the previous frame. The buffer space is made to store the latest calculated backlight brightness data.

Referring to fig. 6, fig. 6 is a flowchart illustrating a method for adjusting area backlight according to a fifth embodiment of the present invention.

Based on the above embodiment, the present embodiment further includes the following steps:

step S030 receives a next frame to be displayed.

In this embodiment, the backlight of the display device is adjusted according to the display backlight brightness corresponding to the current frame, and after the backlight adjustment is completed, the current frame may be displayed after receiving the next frame to be displayed. That is, in this embodiment, it is not necessary to receive the next frame to be displayed first and then display the current display frame after the backlight adjustment is completed. In this embodiment, before the current frame is displayed, the next frame to be displayed may be received first and then displayed, so that the whole process may be continuous without interruption.

Referring to fig. 7, fig. 7 is a flowchart illustrating a method for adjusting area backlight according to a sixth embodiment of the present invention.

Based on the above embodiment, the present embodiment further includes the following steps:

and step S040 of storing the data of the current frame in a preset space.

In this embodiment, after receiving a current frame to be displayed and before calculating backlight luminance data of each partition of the current frame according to the backlight luminance data of a previous frame, the data of the current frame may also be stored in a preset space. The size of the preset space is equal to the data size of the current frame. The preset space can just store the received current frame.

In addition, the embodiment of the invention also provides a computer readable storage medium.

The computer readable storage medium of the present invention has stored thereon an adjustment program of an area backlight, which when executed by a processor implements the steps of the adjustment method of an area backlight as described above.

The method implemented when the adjustment program of the regional backlight running on the processor is executed may refer to each embodiment of the method for adjusting the regional backlight of the present invention, and is not described herein again.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.

The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.

Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk) as described above and includes instructions for enabling a terminal device (e.g., a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.

The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.