CN116844494A - Screen backlight brightness adjusting method and device, computer equipment and storage medium - Google Patents

Abstract

The invention provides a screen backlight brightness adjusting method, a device, computer equipment and a storage medium, wherein the method is characterized in that environmental light intensity values of preset sampling times are continuously acquired within a first preset time to form an environmental light intensity value sequence; acquiring brightness value change trend information corresponding to an environment light intensity value sequence and a sampling effectiveness detection result corresponding to the environment light intensity value sequence; if the brightness value change trend corresponds to the continuous descending change trend or the brightness value change trend corresponds to the continuous ascending change trend and the sampling validity detection result corresponds to the sampling validity result, a preset first backlight dimming strategy or a preset second backlight dimming strategy and a current backlight mode are obtained, and the current backlight mode is adjusted to a night mode or a daytime mode according to the first backlight dimming strategy or the second backlight dimming strategy, so that the screen backlight brightness can be automatically adjusted to the brightness set by the night mode or the daytime mode according to the ambient light intensity change, and the user experience is improved.

Description

Screen backlight brightness adjustment method, device, computer equipment and storage medium

Technical field

The present application relates to the technical field of vehicle screen brightness, and in particular to a screen backlight brightness adjustment method, device, computer equipment and storage medium.

Background technique

With the development of automotive technology, there is a need in the development process of vehicle computer software, that is, the brightness of the screen backlight of the vehicle computer needs to be automatically adjusted according to the ambient light intensity in the car to improve the user experience. If the brightness of the screen backlight is not adjusted, when the light intensity is bright, the screen backlight needs a high brightness backlight so that the driver can look at the screen more comfortably; if the car enters a dark environment such as a tunnel or underground garage at this time, due to the If the screen backlight brightness of the car is always too high, it will be too dazzling and affect the driver's driving safety; in addition, the screen backlight brightness is too dark. When the car enters an environment with good light intensity, the screen backlight brightness is too dark. This makes it difficult for the driver to see clearly the contents of the car screen.

Contents of the invention

Embodiments of the present application provide a screen backlight brightness adjustment method, device, computer equipment and storage medium, aiming to solve the problem in the existing technical methods that the screen backlight brightness cannot be automatically adjusted according to changes in ambient light intensity in the car.

In order to solve the above problems, in the first aspect, embodiments of the present application provide a method for adjusting screen backlight brightness, including:

Continuously collect ambient light intensity values for a preset sampling number within a first preset time to form a sequence of ambient light intensity values;

Obtain brightness value change trend information corresponding to the ambient light intensity value sequence, and obtain sampling validity detection results corresponding to the ambient light intensity value sequence;

If it is determined that the brightness value change trend corresponds to a continuous downward change trend, and the sampling validity detection result corresponds to a sampling valid result, then the preset first backlight dimming strategy and the current backlight mode are obtained for passing the first backlight dimming strategy. A backlight dimming strategy adjusts the current backlight mode to night mode;

If it is determined that the brightness value change trend corresponds to a continuous rising change trend, and the sampling validity detection result corresponds to a sampling valid result, then the preset second backlight dimming strategy and the current backlight mode are obtained for passing the first The second backlight dimming strategy adjusts the current backlight mode to daytime mode.

In a second aspect, embodiments of the present application provide a screen backlight brightness adjustment device, which includes:

A sampling unit, used to continuously collect ambient light intensity values for a preset sampling number within a first preset time to form a sequence of ambient light intensity values;

An acquisition unit, configured to acquire brightness value change trend information corresponding to the ambient light intensity value sequence, and obtain sampling validity detection results corresponding to the ambient light intensity value sequence;

The night mode adjustment unit is configured to obtain the preset first backlight dimming strategy and the current backlight mode if it is determined that the brightness value change trend corresponds to the continuous downward change trend, and the sampling validity detection result corresponds to the sampling valid result, To adjust the current backlight mode to night mode through the first backlight dimming strategy;

The daytime mode adjustment unit is configured to obtain the preset second backlight dimming strategy and the current backlight mode if it is determined that the brightness value change trend corresponds to a continuous upward change trend, and the sampling validity detection result corresponds to the sampling valid result, To adjust the current backlight mode to the daytime mode through the second backlight dimming strategy.

In a third aspect, embodiments of the present application provide a computer device, which includes a memory, a processor, and a computer program stored on the memory and executable on the processor, wherein the processor When the computer program is executed, the screen backlight brightness adjustment method described in the first aspect is implemented.

In a fourth aspect, embodiments of the present application further provide a storage medium, wherein the storage medium stores a computer program, the computer program includes program instructions, and when executed by a processor, the program instructions cause the processor to execute The screen backlight brightness adjustment method described in the first aspect.

The invention provides a screen backlight brightness adjustment method, device, computer equipment and storage medium. The method continuously collects ambient light intensity values for a preset sampling number within a first preset time to form a sequence of ambient light intensity values; Obtain the brightness value change trend information corresponding to the ambient light intensity value sequence and the sampling validity detection result corresponding to the ambient light intensity value sequence; if it is determined that the brightness value change trend corresponds to a continuous downward change trend or the brightness value The change trend corresponds to the continuous rising change trend and the sampling validity detection result corresponds to the sampling valid result, then the preset first backlight dimming strategy or the preset second backlight dimming strategy and the current backlight mode are obtained, and according to the The first backlight dimming strategy or the second backlight dimming strategy adjusts the current backlight mode to night mode or day mode, so that the screen backlight brightness is automatically adjusted to the brightness set in the night or day mode according to changes in ambient light intensity. , to improve the user experience.

Description of the drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are some embodiments of the present application, which are of great significance to this field. Ordinary technicians can also obtain other drawings based on these drawings without exerting creative work.

Figure 1 is a schematic flow chart of a screen backlight brightness adjustment method provided by an embodiment of the present application;

Figure 2 is a schematic block diagram of a screen backlight brightness adjustment device provided by an embodiment of the present application;

Figure 3 is a schematic block diagram of a computer device provided by an embodiment of the present application.

Detailed ways

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of this application.

It should be understood that, when used in this specification and the appended claims, the terms "comprises" and "comprises" indicate the presence of described features, integers, steps, operations, elements and/or components but do not exclude the presence of one or The presence or addition of multiple other features, integers, steps, operations, elements, components and/or collections thereof.

It should also be understood that the terminology used in the specification of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this specification and the appended claims, the singular forms "a", "an" and "the" are intended to include the plural forms unless the context clearly dictates otherwise.

It will be further understood that the term "and/or" as used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items. .

Embodiments of the present invention provide a screen backlight brightness adjustment method, which is applied to a vehicle-machine system.

FIG. 1 is a schematic flowchart of a method for adjusting screen backlight brightness provided by an embodiment of the present application. As shown in Figure 1, the method includes steps S110 to S140.

S110. Continuously collect ambient light intensity values for a preset sampling number within a first preset time to form a sequence of ambient light intensity values.

In this embodiment, a photosensitive device is provided on the vehicle system for detecting the current ambient light intensity. Among them, the vehicle-machine system controls the photosensitive device to collect the ambient light intensity value in real time or periodically. During specific implementation, when the vehicle's on-board system is started, the ambient light intensity value of the preset sampling number can be continuously collected within the first preset time through the photosensitive device to form a sequence of ambient light intensity values, and the photosensitive device will collect the ambient light intensity value every time. The ambient light intensity is sampled once every 100ms, so that the ambient light intensity value sequence of the preset sampling times is continuously collected within the first preset time, so that the subsequent vehicle system can obtain the brightness value corresponding to the ambient light intensity value sequence. Trend information.

The first preset time and the preset number of sampling times may be the time threshold and the number of sampling times set by the vehicle system, or the time threshold and the number of sampling times set manually by the user.

In an embodiment, step S110 includes:

Obtain the first time period, the second time period and the third time period included in the first preset time;

Obtain a first subsequence of ambient light intensity values corresponding to the first time period, a second subsequence of ambient light intensity values corresponding to the second time period, and a third subsequence of ambient light intensity corresponding to the third time period. intensity value subsequence;

The ambient light intensity value sequence is composed of the first ambient light intensity value subsequence, the second ambient light intensity value subsequence and the third ambient light intensity value subsequence in order.

In this embodiment, since the screen backlight brightness adjustment method only adjusts the screen backlight brightness based on the ambient light intensity value collected by the photosensitive device, the problem of incomplete optimization and adjustment of the screen backlight brightness is often prone to occur. For example, when the user is driving, the natural ambient light is blocked due to issues such as the placement angle of objects in the car, resulting in inaccurate parameters for the photosensitive device to collect the ambient light intensity value, which can easily lead to large errors in screen backlight brightness adjustment. . Therefore, in order to improve the accuracy of screen backlight brightness adjustment, a sub-sequence of ambient light intensity values for multiple time periods is collected within the first preset time.

The first preset time period may include multiple time periods of ambient light intensity value subsequences, and the multiple time periods included in the first preset time period are not specifically limited here.

Preferably, by obtaining the first time period, the second time period and the third time period included in the first preset time; and obtaining the first subsequence of ambient light intensity values corresponding to the first time period, a second subsequence of ambient light intensity values corresponding to the second time period and a third subsequence of ambient light intensity values corresponding to the third time period; and consisting of the first subsequence of ambient light intensity values, the The second ambient light intensity value subsequence and the third ambient light intensity value subsequence sequentially form the ambient light intensity value sequence, so that the vehicle-machine system can update the ambient light intensity value subsequence based on multiple time periods. In order to accurately judge the brightness value change trend information corresponding to the ambient light intensity value sequence.

S120: Obtain the brightness value change trend information corresponding to the ambient light intensity value sequence, and obtain the sampling validity detection result corresponding to the ambient light intensity value sequence.

In this embodiment, the vehicle-machine system obtains the sequence of ambient light intensity values collected by the photosensitive device, and determines whether the screen backlight brightness matching mode is night mode or daytime based on the brightness value change trend information corresponding to the sequence of ambient light intensity values. model. Wherein, the brightness value change trend information corresponding to the ambient light intensity value sequence is bright->dark or dark->bright. When the brightness value change trend information corresponding to the ambient light intensity value sequence is bright->dark, the screen backlight brightness matching mode is night mode; when the brightness value change trend information corresponding to the ambient light intensity value sequence is When dark->bright, the screen backlight brightness matching mode is day mode.

In addition, after the vehicle-machine system determines the matching mode of the vehicle-machine screen, it obtains the sampling validity detection result corresponding to the ambient light intensity value sequence according to the ambient light intensity value sequence, so that the vehicle-machine system determines the matching mode and the According to the sampling validity detection results corresponding to the above-mentioned ambient light intensity value sequence, the screen backlight brightness is adjusted to the corresponding day mode or night mode.

In one embodiment, as a first embodiment of obtaining the sampling validity detection result corresponding to the sequence of ambient light intensity values in step S120, step S120 includes:

Get the preset day mode light intensity threshold or night mode light intensity threshold;

Obtain the total number of ambient light intensity values included in the ambient light intensity value sequence, and record it as the first value;

Obtain the total number of ambient light intensity values in the sequence of ambient light intensity values that are greater than the daytime mode light intensity threshold, and record them as a second value;

Obtain the total number of ambient light intensity values that are less than the night mode light intensity threshold in the ambient light intensity value sequence, and record it as the third value;

If it is determined that the ratio of the second value to the first value is greater than or equal to the preset first ratio threshold, or if it is determined that the ratio of the third value to the first value is greater than or equal to Based on the preset second proportion threshold, it is determined that the sampling validity detection result is a sampling valid result;

If it is determined that the ratio of the second value to the first value is less than the first ratio threshold, or if it is determined that the ratio of the third value to the first value is less than the second ratio threshold, it is determined that the sampling validity detection result is an invalid sampling result.

In this embodiment, the sampling validity detection result corresponding to the ambient light intensity value sequence can be obtained specifically by: determining the total number of ambient light intensity values in the ambient light intensity value sequence that is greater than the daytime mode light intensity threshold. The ratio of the number to the total number of ambient light intensity values included in the ambient light intensity value sequence and the size of the preset first proportion threshold, or it is determined that the ambient light intensity value sequence is smaller than the night mode light The ratio of the total number of ambient light intensity values of the intensity threshold to the total number of ambient light intensity values included in the sequence of ambient light intensity values and the size of the preset second ratio threshold are used to determine the sampling effectiveness Check whether the test result is a valid sampling result.

For example: when the total number of ambient light intensity values included in the ambient light intensity value sequence is 10, and the total number of ambient light intensity values in the ambient light intensity value sequence that are greater than the daytime mode light intensity threshold is 8. When the preset first ratio threshold is 3/5, it can be seen that the total number of ambient light intensity values in the sequence of ambient light intensity values that are greater than the daytime mode light intensity threshold is equal to the ambient light intensity value. If the ratio of the total number of ambient light intensity values included in the sequence is 4/5 and is greater than the preset first ratio threshold of 3/5, then the vehicle-machine system can determine that the sampling validity detection result is a valid sampling result. .

In one embodiment, as a second embodiment of obtaining the sampling validity detection result corresponding to the sequence of ambient light intensity values in step S120, step S120 includes:

Get the preset day mode light intensity threshold or night mode light intensity threshold;

Obtain the total number of ambient light intensity values in the sequence of ambient light intensity values that are greater than the daytime mode light intensity threshold, and record them as the fourth value;

Obtain the total number of ambient light intensity values that are less than the night mode light intensity threshold in the ambient light intensity value sequence, and record it as the fifth value;

If it is determined that the fourth numerical value is greater than or equal to the preset first numerical threshold, or if it is determined that the fifth numerical value is greater than or equal to the preset second numerical threshold, then the sampling validity is determined. The test results are valid sampling results;

If it is determined that the fourth numerical value is less than the first numerical threshold, or if it is determined that the fifth number is smaller than the second numerical threshold, it is determined that the sampling validity detection result is that the sampling has an invalid result.

In this embodiment, obtaining the sampling validity detection result corresponding to the sequence of ambient light intensity values can also be achieved by: determining the ambient light intensity value in the sequence of ambient light intensity values that is greater than the daytime mode light intensity threshold. The total number and the size of the preset first numerical threshold, or the total number of ambient light intensity values that are smaller than the night mode light intensity threshold in the sequence of ambient light intensity values is determined and the preset The second numerical threshold is used to determine whether the sampling validity detection result is a valid sampling result.

For example: when the total number of ambient light intensity values in the sequence of ambient light intensity values that are greater than the daytime mode light intensity threshold is 8 and the preset first numerical threshold is 6, it can be known that the ambient light If the total number of ambient light intensity values in the intensity value sequence that is greater than the daytime mode light intensity threshold is greater than the preset first numerical threshold, at this time, the vehicle-machine system may determine that the sampling validity detection result is sampling. Valid results.

In an embodiment, after step S120, the method includes:

If it is determined that the sampling validity detection result corresponds to an invalid sampling result, then return to the step of continuously collecting ambient light intensity values for a preset sampling number within a first preset time to form a sequence of ambient light intensity values.

In this embodiment, after the steps of obtaining the brightness value change trend information corresponding to the ambient light intensity value sequence and obtaining the sampling validity detection results corresponding to the ambient light intensity value sequence, if it is determined that the If the sampling validity detection result corresponds to the invalid sampling result, the vehicle-machine system will control the photosensitive device to continue to perform the steps of continuously collecting the ambient light intensity values of the preset sampling times within the first preset time to form a sequence of ambient light intensity values. , and keep the current mode of the screen unchanged, so that the screen backlight brightness will not be adjusted at will, thereby improving the stability of the current mode of the screen.

S130. If it is determined that the brightness value change trend corresponds to a continuous downward change trend, and the sampling validity detection result corresponds to a sampling valid result, obtain the preset first backlight dimming strategy and the current backlight mode for passing the required The first backlight dimming strategy adjusts the current backlight mode to night mode.

In this embodiment, when the vehicle-machine system determines that the brightness value change trend information corresponding to the ambient light intensity value sequence corresponds to a continuous downward change trend, and the sampling validity detection result corresponds to the sampling effective result, the vehicle-machine system accordingly Obtain the preset first backlight dimming strategy and the current backlight mode of the vehicle screen, and adjust the current backlight mode to the night mode based on the preset first backlight dimming strategy; preferably, the ambient light intensity value sequence corresponds to The change in brightness value is at least five consecutive changes from bright to dark. For example, each ambient light intensity value in the sequence of ambient light intensity values is X1, X2, X3, X4, X5, X6, X7, X8, X9 and X10, where X1, X2, X3, X4, X5, X6, X7, X8, X9 and X10 are all positive integers. When at least any six consecutive ambient light intensity values show a downward trend, such as X1>X2>X3>X4>X5>X6>X7<X8>X9 and > It is a night mode, so that the brightness of the car screen can be automatically adjusted according to changes in ambient light intensity.

In one embodiment, obtaining the preset first backlight dimming strategy and the current backlight mode for adjusting the current backlight mode to night mode through the first backlight dimming strategy includes:

Obtain the backlight brightness reduction value and the first dimming duration corresponding to the first backlight dimming strategy;

Obtain the first target backlight brightness value corresponding to the night mode;

Obtain the current backlight brightness value corresponding to the current backlight mode, and adjust the current backlight brightness value uniformly to the first target within the first dimming duration using the backlight brightness reduction value as the adjustment step size. Backlight brightness value to switch to the night mode.

In this embodiment, in order to improve the user's experience of the car screen, the car system sets the backlight brightness of the car screen to be adjusted to the brightness set in night mode in a brightness gradient manner within a preset first dimming time period. Specifically, by obtaining the backlight brightness reduction value and the first dimming duration corresponding to the first backlight dimming strategy; obtaining the first target backlight brightness value corresponding to the night mode; and obtaining the current backlight brightness value corresponding to the current backlight mode. Backlight brightness value, the current backlight brightness value is uniformly changed and adjusted to the first target backlight brightness value within the first dimming duration using the backlight brightness reduction value as an adjustment step, so as to switch to the Night mode. Wherein, the first dimming duration can be manually set by the user, and the first dimming duration is preferably 3 seconds in this embodiment.

Therefore, the method according to the above embodiment not only solves the problem of the backlight brightness of the car screen being too bright due to changes in ambient light intensity, but also avoids the user's discomfort caused by sudden changes in the backlight brightness of the car screen.

S140. If it is determined that the brightness value change trend corresponds to a continuous upward change trend, and the sampling validity detection result corresponds to a sampling valid result, obtain the preset second backlight dimming strategy and the current backlight mode for passing the required The second backlight dimming strategy adjusts the current backlight mode to daytime mode.

In this embodiment, when the vehicle-machine system determines that the brightness value change trend information corresponding to the ambient light intensity value sequence corresponds to a continuous upward change trend, and the sampling validity detection result corresponds to the sampling effective result, the vehicle-machine system accordingly Obtain the preset second backlight dimming strategy and the current backlight mode of the vehicle screen, and adjust the current backlight mode to the daytime mode based on the preset second backlight dimming strategy; preferably, the ambient light intensity value sequence corresponds to The change in brightness value is at least five consecutive changes from dark to bright. For example, each ambient light intensity value in the sequence of ambient light intensity values is X1, X2, X3, X4, X5, X6, X7, X8, X9 and X10, where X1, X2, X3, X4, X5, X6, X7, X8, X9 and X10 are all positive integers. When at least any six consecutive ambient light intensity values show a downward trend, such as X1<X2<X3<X4<X5<X6>X7<X8>X9 and > It is a daytime mode, so that the brightness of the car screen can be automatically adjusted according to changes in ambient light intensity.

In one embodiment, obtaining the preset second backlight dimming strategy and the current backlight mode for adjusting the current backlight mode to the daytime mode through the second backlight dimming strategy includes:

Obtain the backlight brightness increase value and the second dimming duration corresponding to the second backlight dimming strategy;

Obtain the second target backlight brightness value corresponding to the daytime mode;

Obtain the current backlight brightness value corresponding to the current backlight mode, and adjust the current backlight brightness value uniformly to the two target backlight brightness within the second dimming duration using the backlight brightness increase value as the adjustment step size. value to switch to the daytime mode.

In this embodiment, in order to improve the user's experience of the car screen, the car system sets the backlight brightness of the car screen to be adjusted to the brightness set in the daytime mode in a brightness gradient manner within a preset second dimming duration. Specifically, by obtaining the backlight brightness increment value and the second dimming duration corresponding to the second backlight dimming strategy; obtaining the second target backlight brightness value corresponding to the daytime mode; and obtaining the current backlight corresponding to the current backlight mode. Brightness value: uniformly change and adjust the current backlight brightness value to the two target backlight brightness values within the second dimming duration using the backlight brightness increase value as an adjustment step to switch to the daytime mode. Wherein, the second dimming duration can be manually set by the user, and the second dimming duration is preferably 1 s in this embodiment.

Therefore, the method according to the above embodiment not only solves the problem that the backlight brightness of the car screen appears too dark due to changes in ambient light intensity, but also avoids the user's discomfort caused by sudden changes in the backlight brightness of the car screen.

This method collects ambient light intensity values within a preset time to form an ambient light intensity value sequence, and based on the brightness value change trend information corresponding to the ambient light intensity value sequence and the sampling validity detection results corresponding to the ambient light intensity value sequence, Adjust the current backlight mode of the car screen to night mode or day mode, so that the screen backlight brightness can be automatically adjusted to the brightness set in night or day mode according to changes in ambient light intensity to improve the user experience.

An embodiment of the present application also provides a screen backlight brightness adjustment device, which operates to execute any of the foregoing screen backlight brightness adjustment methods according to the embodiments. Specifically, please refer to FIG. 2 , which is a schematic block diagram of a screen backlight brightness adjustment device provided by an embodiment of the present application.

As shown in FIG. 2 , the screen backlight brightness adjustment device 100 includes a sampling unit 110 , an acquisition unit 120 , a night mode adjustment unit 130 and a day mode adjustment unit 140 .

The sampling unit 110 is configured to continuously collect a preset sampling number of ambient light intensity values within a first preset time to form a sequence of ambient light intensity values.

In this embodiment, a photosensitive device is provided on the vehicle system for detecting the current ambient light intensity. Among them, the vehicle-machine system controls the photosensitive device to collect the ambient light intensity value in real time or periodically. During specific implementation, when the vehicle's on-board system is started, the ambient light intensity value of the preset sampling number can be continuously collected within the first preset time through the photosensitive device to form a sequence of ambient light intensity values, and the photosensitive device will collect the ambient light intensity value every time. The ambient light intensity is sampled once every 100ms, so that the ambient light intensity value sequence of the preset sampling times is continuously collected within the first preset time, so that the subsequent vehicle system can obtain the brightness value corresponding to the ambient light intensity value sequence. Trend information.

The first preset time and the preset number of sampling times may be the time threshold and the number of sampling times set by the vehicle system, or the time threshold and the number of sampling times set manually by the user.

In one embodiment, the sampling unit 110 includes:

Obtain the first time period, the second time period and the third time period included in the first preset time;

Obtain a first subsequence of ambient light intensity values corresponding to the first time period, a second subsequence of ambient light intensity values corresponding to the second time period, and a third subsequence of ambient light intensity corresponding to the third time period. intensity value subsequence;

The ambient light intensity value sequence is composed of the first ambient light intensity value subsequence, the second ambient light intensity value subsequence and the third ambient light intensity value subsequence in order.

In this embodiment, since the screen backlight brightness adjustment method only adjusts the screen backlight brightness based on the ambient light intensity value collected by the photosensitive device, the problem of incomplete optimization and adjustment of the screen backlight brightness is often prone to occur. For example, when the user is driving, the natural ambient light is blocked due to issues such as the placement angle of objects in the car, resulting in inaccurate parameters for the photosensitive device to collect the ambient light intensity value, which can easily lead to large errors in screen backlight brightness adjustment. . Therefore, in order to improve the accuracy of screen backlight brightness adjustment, a sub-sequence of ambient light intensity values for multiple time periods is collected within the first preset time.

The first preset time period may include multiple time periods of ambient light intensity value subsequences, and the multiple time periods included in the first preset time period are not specifically limited here.

Preferably, by obtaining the first time period, the second time period and the third time period included in the first preset time; and obtaining the first subsequence of ambient light intensity values corresponding to the first time period, a second subsequence of ambient light intensity values corresponding to the second time period and a third subsequence of ambient light intensity values corresponding to the third time period; and consisting of the first subsequence of ambient light intensity values, the The second ambient light intensity value subsequence and the third ambient light intensity value subsequence sequentially form the ambient light intensity value sequence, so that the vehicle-machine system can update the ambient light intensity value subsequence based on multiple time periods. In order to accurately judge the brightness value change trend information corresponding to the ambient light intensity value sequence.

The obtaining unit 120 is configured to obtain the brightness value change trend information corresponding to the ambient light intensity value sequence, and obtain the sampling validity detection results corresponding to the ambient light intensity value sequence.

In this embodiment, the vehicle-machine system obtains the sequence of ambient light intensity values collected by the photosensitive device, and determines whether the screen backlight brightness matching mode is night mode or daytime based on the brightness value change trend information corresponding to the sequence of ambient light intensity values. model. Wherein, the brightness value change trend information corresponding to the ambient light intensity value sequence is bright->dark or dark->bright. When the brightness value change trend information corresponding to the ambient light intensity value sequence is bright->dark, the screen backlight brightness matching mode is night mode; when the brightness value change trend information corresponding to the ambient light intensity value sequence is When dark->bright, the screen backlight brightness matching mode is day mode.

In addition, after the vehicle-machine system determines the matching mode of the vehicle-machine screen, it obtains the sampling validity detection result corresponding to the ambient light intensity value sequence according to the ambient light intensity value sequence, so that the vehicle-machine system determines the matching mode and the According to the sampling validity detection results corresponding to the above-mentioned ambient light intensity value sequence, the screen backlight brightness is adjusted to the corresponding day mode or night mode.

In one embodiment, as the first embodiment of obtaining the sampling validity detection result corresponding to the ambient light intensity value sequence in the obtaining unit 120, the obtaining unit 1120 includes:

Get the preset day mode light intensity threshold or night mode light intensity threshold;

Obtain the total number of ambient light intensity values included in the ambient light intensity value sequence, and record it as the first value;

Obtain the total number of ambient light intensity values in the sequence of ambient light intensity values that are greater than the daytime mode light intensity threshold, and record them as a second value;

Obtain the total number of ambient light intensity values that are less than the night mode light intensity threshold in the ambient light intensity value sequence, and record it as the third value;

If it is determined that the ratio of the second value to the first value is greater than or equal to the preset first ratio threshold, or if it is determined that the ratio of the third value to the first value is greater than or equal to Based on the preset second proportion threshold, it is determined that the sampling validity detection result is a sampling valid result;

If it is determined that the ratio of the second value to the first value is less than the first ratio threshold, or if it is determined that the ratio of the third value to the first value is less than the second ratio threshold, it is determined that the sampling validity detection result is an invalid sampling result.

In this embodiment, the sampling validity detection result corresponding to the ambient light intensity value sequence can be obtained specifically by: determining the total number of ambient light intensity values in the ambient light intensity value sequence that is greater than the daytime mode light intensity threshold. The ratio of the number to the total number of ambient light intensity values included in the ambient light intensity value sequence and the size of the preset first proportion threshold, or it is determined that the ambient light intensity value sequence is smaller than the night mode light The ratio of the total number of ambient light intensity values of the intensity threshold to the total number of ambient light intensity values included in the sequence of ambient light intensity values and the size of the preset second ratio threshold are used to determine the sampling effectiveness Check whether the test result is a valid sampling result.

For example: when the total number of ambient light intensity values included in the ambient light intensity value sequence is 10, and the total number of ambient light intensity values in the ambient light intensity value sequence that are greater than the daytime mode light intensity threshold is 8. When the preset first ratio threshold is 3/5, it can be seen that the total number of ambient light intensity values in the sequence of ambient light intensity values that are greater than the daytime mode light intensity threshold is equal to the ambient light intensity value. If the ratio of the total number of ambient light intensity values included in the sequence is 4/5 and is greater than the preset first ratio threshold of 3/5, then the vehicle-machine system can determine that the sampling validity detection result is a valid sampling result. .

In one embodiment, as a second embodiment of obtaining the sampling validity detection result corresponding to the ambient light intensity value sequence in the obtaining unit 120, the obtaining unit 120 includes:

Get the preset day mode light intensity threshold or night mode light intensity threshold;

Obtain the total number of ambient light intensity values in the sequence of ambient light intensity values that are greater than the daytime mode light intensity threshold, and record them as the fourth value;

Obtain the total number of ambient light intensity values that are less than the night mode light intensity threshold in the ambient light intensity value sequence, and record it as the fifth value;

If it is determined that the fourth numerical value is greater than or equal to the preset first numerical threshold, or if it is determined that the fifth numerical value is greater than or equal to the preset second numerical threshold, then the sampling validity is determined. The test results are valid sampling results;

If it is determined that the fourth numerical value is less than the first numerical threshold, or if it is determined that the fifth number is smaller than the second numerical threshold, it is determined that the sampling validity detection result is that the sampling has an invalid result.

In this embodiment, obtaining the sampling validity detection result corresponding to the sequence of ambient light intensity values can also be achieved by: determining the ambient light intensity value in the sequence of ambient light intensity values that is greater than the daytime mode light intensity threshold. The total number and the size of the preset first numerical threshold, or the total number of ambient light intensity values that are smaller than the night mode light intensity threshold in the sequence of ambient light intensity values is determined and the preset The second numerical threshold is used to determine whether the sampling validity detection result is a valid sampling result.

For example: when the total number of ambient light intensity values in the sequence of ambient light intensity values that are greater than the daytime mode light intensity threshold is 8 and the preset first numerical threshold is 6, it can be known that the ambient light If the total number of ambient light intensity values in the intensity value sequence that is greater than the daytime mode light intensity threshold is greater than the preset first numerical threshold, at this time, the vehicle-machine system may determine that the sampling validity detection result is sampling. Valid results.

In an embodiment, after the acquisition unit 120, the method includes:

If it is determined that the sampling validity detection result corresponds to an invalid sampling result, then return to the step of continuously collecting ambient light intensity values for a preset sampling number within a first preset time to form a sequence of ambient light intensity values.

In this embodiment, after the steps of obtaining the brightness value change trend information corresponding to the ambient light intensity value sequence and obtaining the sampling validity detection results corresponding to the ambient light intensity value sequence, if it is determined that the If the sampling validity detection result corresponds to the invalid sampling result, the vehicle-machine system will control the photosensitive device to continue to perform the steps of continuously collecting the ambient light intensity values of the preset sampling times within the first preset time to form a sequence of ambient light intensity values. , and keep the current mode of the screen unchanged, so that the screen backlight brightness will not be adjusted at will, thereby improving the stability of the current mode of the screen.

The night mode adjustment unit 130 is configured to obtain the preset first backlight dimming strategy and the current backlight mode if it is determined that the brightness value change trend corresponds to a continuous downward change trend, and the sampling validity detection result corresponds to a sampling valid result. , for adjusting the current backlight mode to night mode through the first backlight dimming strategy.

In this embodiment, when the vehicle-machine system determines that the brightness value change trend information corresponding to the ambient light intensity value sequence corresponds to a continuous downward change trend, and the sampling validity detection result corresponds to the sampling effective result, the vehicle-machine system accordingly Obtain the preset first backlight dimming strategy and the current backlight mode of the vehicle screen, and adjust the current backlight mode to the night mode based on the preset first backlight dimming strategy; preferably, the ambient light intensity value sequence corresponds to The change in brightness value is at least five consecutive changes from bright to dark. For example, each ambient light intensity value in the sequence of ambient light intensity values is X1, X2, X3, X4, X5, X6, X7, X8, X9 and X10, where X1, X2, X3, X4, X5, X6, X7, X8, X9 and X10 are all positive integers. When at least any six consecutive ambient light intensity values show a downward trend, such as X1>X2>X3>X4>X5>X6>X7<X8>X9 and > It is a night mode, so that the brightness of the car screen can be automatically adjusted according to changes in ambient light intensity.

In one embodiment, obtaining the preset first backlight dimming strategy and the current backlight mode for adjusting the current backlight mode to night mode through the first backlight dimming strategy includes:

Obtain the backlight brightness reduction value and the first dimming duration corresponding to the first backlight dimming strategy;

Obtain the first target backlight brightness value corresponding to the night mode;

Obtain the current backlight brightness value corresponding to the current backlight mode, and adjust the current backlight brightness value uniformly to the first target within the first dimming duration using the backlight brightness reduction value as the adjustment step size. Backlight brightness value to switch to the night mode.

In this embodiment, in order to improve the user's experience of the car screen, the car system sets the backlight brightness of the car screen to be adjusted to the brightness set in night mode in a brightness gradient manner within a preset first dimming time period. Specifically, by obtaining the backlight brightness reduction value and the first dimming duration corresponding to the first backlight dimming strategy; obtaining the first target backlight brightness value corresponding to the night mode; and obtaining the current backlight brightness value corresponding to the current backlight mode. Backlight brightness value, the current backlight brightness value is uniformly changed and adjusted to the first target backlight brightness value within the first dimming duration using the backlight brightness reduction value as an adjustment step, so as to switch to the Night mode. Wherein, the first dimming duration can be manually set by the user, and the first dimming duration is preferably 3 seconds in this embodiment.

Therefore, the method according to the above embodiment not only solves the problem of the backlight brightness of the car screen being too bright due to changes in ambient light intensity, but also avoids the user's discomfort caused by sudden changes in the backlight brightness of the car screen.

The day mode adjustment unit 140 is configured to obtain the preset second backlight dimming strategy and the current backlight mode if it is determined that the brightness value change trend corresponds to a continuous upward change trend, and the sampling validity detection result corresponds to a sampling valid result. , for adjusting the current backlight mode to the daytime mode through the second backlight dimming strategy.

In this embodiment, when the vehicle-machine system determines that the brightness value change trend information corresponding to the ambient light intensity value sequence corresponds to a continuous upward change trend, and the sampling validity detection result corresponds to the sampling effective result, the vehicle-machine system accordingly Obtain the preset second backlight dimming strategy and the current backlight mode of the vehicle screen, and adjust the current backlight mode to the daytime mode based on the preset second backlight dimming strategy; preferably, the ambient light intensity value sequence corresponds to The change in brightness value is at least five consecutive changes from dark to bright. For example, each ambient light intensity value in the sequence of ambient light intensity values is X1, X2, X3, X4, X5, X6, X7, X8, X9 and X10, where X1, X2, X3, X4, X5, X6, X7, X8, X9 and X10 are all positive integers. When at least any six consecutive ambient light intensity values show an upward trend, such as X1<X2<X3<X4<X5<X6>X7<X8>X9 and > It is a daytime mode, so that the brightness of the car screen can be automatically adjusted according to changes in ambient light intensity.

In one embodiment, obtaining the preset second backlight dimming strategy and the current backlight mode for adjusting the current backlight mode to the daytime mode through the second backlight dimming strategy includes:

Obtain the backlight brightness increase value and the second dimming duration corresponding to the second backlight dimming strategy;

Obtain the second target backlight brightness value corresponding to the daytime mode;

Obtain the current backlight brightness value corresponding to the current backlight mode, and adjust the current backlight brightness value uniformly to the two target backlight brightness within the second dimming duration using the backlight brightness increase value as the adjustment step size. value to switch to the daytime mode.

In this embodiment, in order to improve the user's experience of the car screen, the car system sets the backlight brightness of the car screen to be adjusted to the brightness set in the daytime mode in a brightness gradient manner within a preset second dimming duration. Specifically, by obtaining the backlight brightness increment value and the second dimming duration corresponding to the second backlight dimming strategy; obtaining the second target backlight brightness value corresponding to the daytime mode; and obtaining the current backlight corresponding to the current backlight mode. Brightness value: uniformly change and adjust the current backlight brightness value to the two target backlight brightness values within the second dimming duration using the backlight brightness increase value as an adjustment step to switch to the daytime mode. Wherein, the second dimming duration can be manually set by the user, and the second dimming duration is preferably 1 s in this embodiment.

Therefore, the method according to the above embodiment not only solves the problem that the backlight brightness of the car screen appears too dark due to changes in ambient light intensity, but also avoids the user's discomfort caused by sudden changes in the backlight brightness of the car screen.

The device collects ambient light intensity values within a preset time to form an ambient light intensity value sequence, and based on the brightness value change trend information corresponding to the ambient light intensity value sequence and the sampling validity detection results corresponding to the ambient light intensity value sequence, Adjust the current backlight mode of the car screen to night mode or day mode, so that the screen backlight brightness can be automatically adjusted to the brightness set in night or day mode according to changes in ambient light intensity to improve the user experience.

The above screen backlight brightness adjusting device can be implemented in the form of a computer program, and the computer program can be run on the computer device as shown in Figure 3.

Please refer to Figure 3, which is a schematic block diagram of a computer device provided by an embodiment of the present application. The computer device 500 is a server, and the server can be an independent server or a server cluster composed of multiple servers.

Referring to FIG. 3 , the computer device 500 includes a processor 502 , a memory, and a network interface 505 connected through a device bus 501 , where the memory may include a storage medium 503 and an internal memory 504 .

The storage medium 503 can store an operating system 5031 and a computer program 5032. When the computer program 5032 is executed, it can cause the processor 502 to execute the screen backlight brightness adjustment method.

The processor 502 is used to provide computing and control capabilities to support the operation of the entire computer device 500 .

The internal memory 504 provides an environment for the execution of the computer program 5032 in the storage medium 503. When the computer program 5032 is executed by the processor 502, it can cause the processor 502 to execute the screen backlight brightness adjustment method.

The network interface 505 is used for network communication, such as providing transmission of data information, etc. Those skilled in the art can understand that the structure shown in Figure 3 is only a block diagram of a partial structure related to the solution of the present application, and does not constitute a limitation on the computer device 500 to which the solution of the present application is applied. The specific computer device 500 may include more or fewer components than shown, some combinations of components, or a different arrangement of components.

The processor 502 is used to run the computer program 5032 stored in the memory to implement the screen backlight brightness adjustment method disclosed in the embodiment of the present application.

Those skilled in the art can understand that the embodiment of the computer device shown in Figure 3 does not constitute a limitation on the specific configuration of the computer device. In other embodiments, the computer device may include more or fewer components than shown in the figure. Or combining certain parts, or different parts arrangements. For example, in some embodiments, the computer device may only include a memory and a processor. In such an embodiment, the structure and function of the memory and processor are consistent with the embodiment shown in FIG. 3 and will not be described again.

It should be understood that in the embodiment of the present application, the processor 502 may be a central processing unit (Central Processing Unit, CPU). The processor 502 may also be other general-purpose processors, digital signal processors (Digital Signal Processor, DSP), special integrated processors, etc. Circuit (Application Specific Integrated Circuit, ASIC), off-the-shelf programmable gate array (Field-Programmable Gate Array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general processor may be a microprocessor or the processor may be any conventional processor.

In another embodiment of the present application, a computer-readable storage medium is provided. The computer-readable storage medium may be a non-volatile computer-readable storage medium or a volatile computer-readable storage medium. The computer-readable storage medium stores a computer program, wherein when the computer program is executed by a processor, the screen backlight brightness adjustment method disclosed in the embodiment of the present application is implemented.

Those skilled in the art can clearly understand that for the convenience and simplicity of description, the specific working processes of the above-described equipment, devices and units can be referred to the corresponding processes in the foregoing method embodiments, and will not be described again here. Those of ordinary skill in the art can appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented with electronic hardware, computer software, or a combination of both. In order to clearly illustrate the relationship between hardware and software Interchangeability, in the above description, the composition and steps of each example have been generally described according to functions. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technology solution. Skilled artisans may implement the described functionality using different methods for each specific application, but such implementations should not be considered beyond the scope of this application.

In the several embodiments provided in this application, it should be understood that the disclosed equipment, devices and methods can be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of the units is only for logical functions. In actual implementation, there may be other division methods, and units with the same functions may also be assembled into one unit. Units, such as multiple units or components, may be combined or integrated into another device, or some features may be omitted, or not performed. In addition, the coupling or direct coupling or communication connection between each other shown or discussed may be an indirect coupling or communication connection through some interfaces, devices or units, or may be electrical, mechanical or other forms of connection.

The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or they may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the embodiments of the present application.

In addition, each functional unit in various embodiments of the present application may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit. The above integrated units can be implemented in the form of hardware or software functional units.

If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it may be stored in a storage medium. Based on this understanding, the technical solution of the present application is essentially or contributes to the existing technology, or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium , including several instructions to cause a computer device (which can be a personal computer, a backend server, or a network device, etc.) to execute all or part of the steps of the methods described in various embodiments of this application. The aforementioned storage media include: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), magnetic disk or optical disk and other various media that can store program codes.

The above are only specific embodiments of the present application, but the protection scope of the present application is not limited thereto. Any person familiar with the technical field can easily think of various equivalent methods within the technical scope disclosed in the present application. Modification or replacement, these modifications or replacements shall be covered by the protection scope of this application. Therefore, the protection scope of this application should be subject to the protection scope of the claims.

Claims (10)

1. A method for adjusting screen backlight brightness, characterized by comprising: Continuously collect ambient light intensity values for a preset sampling number within a first preset time to form a sequence of ambient light intensity values; Obtain brightness value change trend information corresponding to the ambient light intensity value sequence, and obtain sampling validity detection results corresponding to the ambient light intensity value sequence; If it is determined that the brightness value change trend corresponds to a continuous downward change trend, and the sampling validity detection result corresponds to a sampling valid result, then the preset first backlight dimming strategy and the current backlight mode are obtained for passing the first backlight dimming strategy. A backlight dimming strategy adjusts the current backlight mode to night mode; If it is determined that the brightness value change trend corresponds to a continuous rising change trend, and the sampling validity detection result corresponds to a sampling valid result, then the preset second backlight dimming strategy and the current backlight mode are obtained for passing the first The second backlight dimming strategy adjusts the current backlight mode to daytime mode. 2. The screen backlight brightness adjustment method according to claim 1, wherein said obtaining the sampling validity detection result corresponding to the sequence of ambient light intensity values includes: Get the preset day mode light intensity threshold or night mode light intensity threshold; Obtain the total number of ambient light intensity values included in the ambient light intensity value sequence, and record it as the first value; Obtain the total number of ambient light intensity values in the sequence of ambient light intensity values that are greater than the daytime mode light intensity threshold, and record them as a second value; Obtain the total number of ambient light intensity values that are less than the night mode light intensity threshold in the ambient light intensity value sequence, and record it as the third value; If it is determined that the ratio of the second value to the first value is greater than or equal to the preset first ratio threshold, or if it is determined that the ratio of the third value to the first value is greater than or equal to Based on the preset second proportion threshold, it is determined that the sampling validity detection result is a sampling valid result; If it is determined that the ratio of the second value to the first value is less than the first ratio threshold, or if it is determined that the ratio of the third value to the first value is less than the second ratio threshold, it is determined that the sampling validity detection result is an invalid sampling result. 3. The screen backlight brightness adjustment method according to claim 1, characterized in that said obtaining the sampling validity detection result corresponding to the sequence of ambient light intensity values includes: Get the preset day mode light intensity threshold or night mode light intensity threshold; Obtain the total number of ambient light intensity values in the sequence of ambient light intensity values that are greater than the daytime mode light intensity threshold, and record them as the fourth value; Obtain the total number of ambient light intensity values that are less than the night mode light intensity threshold in the ambient light intensity value sequence, and record it as the fifth value; If it is determined that the fourth numerical value is greater than or equal to the preset first numerical threshold, or if it is determined that the fifth numerical value is greater than or equal to the preset second numerical threshold, then the sampling validity is determined. The test results are valid sampling results; If it is determined that the fourth numerical value is less than the first numerical threshold, or if it is determined that the fifth number is smaller than the second numerical threshold, it is determined that the sampling validity detection result is that the sampling has an invalid result. 4. The screen backlight brightness adjustment method according to claim 1, characterized in that said obtaining the preset first backlight dimming strategy and the current backlight mode is used to adjust the first backlight dimming strategy through the first backlight dimming strategy. Adjust the current backlight mode to night mode, including: Obtain the backlight brightness reduction value and the first dimming duration corresponding to the first backlight dimming strategy; Obtain the first target backlight brightness value corresponding to the night mode; Obtain the current backlight brightness value corresponding to the current backlight mode, and adjust the current backlight brightness value uniformly to the first target within the first dimming duration using the backlight brightness reduction value as the adjustment step size. Backlight brightness value to switch to the night mode. 5. The screen backlight brightness adjustment method according to claim 1, characterized in that said obtaining a preset second backlight dimming strategy and a current backlight mode is used to adjust the preset second backlight dimming strategy through the second backlight dimming strategy. Adjust the current backlight mode to day mode, including: Obtain the backlight brightness increase value and the second dimming duration corresponding to the second backlight dimming strategy; Obtain the second target backlight brightness value corresponding to the daytime mode; Obtain the current backlight brightness value corresponding to the current backlight mode, and adjust the current backlight brightness value uniformly to the two target backlight brightness within the second dimming duration using the backlight brightness increase value as the adjustment step size. value to switch to the daytime mode. 6. The screen backlight brightness adjustment method according to claim 1, wherein the ambient light intensity value of a preset sampling number is continuously collected within the first preset time to form a sequence of ambient light intensity values, including: Obtain the first time period, the second time period and the third time period included in the first preset time; Obtain a first subsequence of ambient light intensity values corresponding to the first time period, a second subsequence of ambient light intensity values corresponding to the second time period, and a third subsequence of ambient light intensity corresponding to the third time period. intensity value subsequence; The ambient light intensity value sequence is composed of the first ambient light intensity value subsequence, the second ambient light intensity value subsequence and the third ambient light intensity value subsequence in order. 7. The screen backlight brightness adjustment method according to claim 1, characterized in that, in the step of obtaining the brightness value change trend information corresponding to the ambient light intensity value sequence, and acquiring the ambient light intensity value sequence corresponding to After the step of sampling validity detection results, the method further includes: If it is determined that the sampling validity detection result corresponds to an invalid sampling result, then return to the step of continuously collecting ambient light intensity values for a preset sampling number within a first preset time to form a sequence of ambient light intensity values. 8. A screen backlight brightness adjustment device, characterized in that the screen backlight brightness adjustment device includes: A sampling unit, used to continuously collect ambient light intensity values for a preset sampling number within a first preset time to form a sequence of ambient light intensity values; An acquisition unit, configured to acquire brightness value change trend information corresponding to the ambient light intensity value sequence, and obtain sampling validity detection results corresponding to the ambient light intensity value sequence; The night mode adjustment unit is configured to obtain the preset first backlight dimming strategy and the current backlight mode if it is determined that the brightness value change trend corresponds to the continuous downward change trend, and the sampling validity detection result corresponds to the sampling valid result, To adjust the current backlight mode to night mode through the first backlight dimming strategy; The daytime mode adjustment unit is configured to obtain the preset second backlight dimming strategy and the current backlight mode if it is determined that the brightness value change trend corresponds to a continuous upward change trend, and the sampling validity detection result corresponds to the sampling valid result, To adjust the current backlight mode to the daytime mode through the second backlight dimming strategy. 9. A computer device, comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, characterized in that when the processor executes the computer program, the processor implements the claims as claimed in The screen backlight brightness adjustment method described in any one of 1-7. 10. A storage medium, characterized in that the storage medium stores a computer program, the computer program includes program instructions, and when executed by a processor, the program instructions cause the processor to execute claims 1-7 The screen backlight brightness adjustment method described in any one of the above.