CN110599982A

CN110599982A - Screen brightness adjusting method and system of vehicle-mounted terminal, vehicle-mounted terminal and vehicle

Info

Publication number: CN110599982A
Application number: CN201910889107.9A
Authority: CN
Inventors: 左嘉威
Original assignee: Guangzhou Xiaopeng Motors Technology Co Ltd
Current assignee: Guangzhou Xiaopeng Motors Technology Co Ltd
Priority date: 2019-09-19
Filing date: 2019-09-19
Publication date: 2019-12-20

Abstract

The application provides a method and a system for adjusting screen brightness of a vehicle-mounted terminal, the vehicle-mounted terminal and a vehicle, wherein the method comprises the following steps: when a screen of the vehicle-mounted terminal is on bright screen, reading the light intensity of the environment in the vehicle detected by the optical sensor; when the light intensity is lower than a set light intensity threshold value, detecting whether the vehicle meets a state condition, wherein the state condition comprises a condition that the driving interaction state triggers the screen brightness control; and if the state condition is met, adjusting the screen brightness of the vehicle-mounted terminal according to a preset light intensity adjusting scheme. According to the screen brightness adjusting method of the vehicle-mounted terminal, the influence of the bright screen of the vehicle-mounted terminal on the vehicle environment can be reduced in a dark environment, the interference of screen light on a driver is weakened, and therefore the safety of vehicle driving is improved.

Description

Screen brightness adjusting method and system of vehicle-mounted terminal, vehicle-mounted terminal and vehicle

Technical Field

The application relates to the technical field of vehicles, in particular to a screen brightness adjusting method of a vehicle-mounted terminal, a screen brightness adjusting system of the vehicle-mounted terminal, the vehicle-mounted terminal and a vehicle.

Background

More and more vehicles are equipped with in-vehicle terminals that can install applications and provide rich functions, such as displaying a navigation route through a screen, which can help a driver to select and control the driving route well.

At present, when the screen of the terminal is controlled to the darkest brightness, the user still can not be influenced to check the display content of the terminal, and the display effect of the screen is ensured.

However, when a vehicle is driven in a dark environment, for example, at night or when the vehicle is driven to a tunnel, the darkest screen still shows a remarkable bright screen effect in the dark environment, at this time, the bright screen of the vehicle-mounted terminal makes a driver feel dazzling, the attention of the driver can be dispersed, and the bright screen of the vehicle-mounted terminal reduces the driving safety.

Disclosure of Invention

In view of the above, it is necessary to provide a screen brightness adjustment method for a vehicle-mounted terminal, a screen brightness adjustment system for a vehicle-mounted terminal, and a vehicle, aiming at the above technical defects, especially the technical defect that the screen brightness of the vehicle-mounted terminal reduces the driving safety.

A screen brightness adjusting method of a vehicle-mounted terminal comprises the following steps:

when a screen of the vehicle-mounted terminal is on bright screen, reading the light intensity of the environment in the vehicle detected by the optical sensor;

when the light intensity is lower than a set light intensity threshold value, detecting whether the vehicle meets a state condition, wherein the state condition comprises a condition that the driving interaction state triggers the screen brightness control;

and if the state condition is met, adjusting the screen brightness of the vehicle-mounted terminal according to a preset light intensity adjusting scheme.

In one embodiment, the state condition includes specifying that the application is in a standby state;

the step of detecting whether the vehicle satisfies the condition includes:

determining a designated application program on the vehicle-mounted terminal according to the state condition; inquiring the task state of the specified application program from the vehicle-mounted terminal; and when the task state indicates that the specified application program is in a standby state, determining that the vehicle meets the state condition.

In one embodiment, the specified application program in the standby state comprises a voice assistant application program in a non-awakening working state and/or a navigation application program of the vehicle-mounted terminal in a task-free state;

the step of querying the task state of the specified application program from the vehicle-mounted terminal includes:

inquiring the working state of a voice assistant application program of the vehicle-mounted terminal and inquiring the task state of a navigation application program of the vehicle-mounted terminal;

the step of determining that the vehicle satisfies the state condition when the task state indicates that the designated application is in a standby state includes:

and when the inquired working state shows that the voice assistant application program is not awakened and/or when the inquired task state shows that the navigation application program is in no-task operation, judging that the vehicle meets the state condition.

In one embodiment, the status condition includes the screen being in a no-sense state;

the step of detecting whether the vehicle satisfies a condition includes:

determining the sensing parameters and a judgment threshold range of the screen according to the state condition, wherein the judgment threshold range is used for representing that the screen is in a non-sensing state; sensing parameters of the screen through a sensor; and when the induction parameters of the screen are in the judgment threshold range, judging that the vehicle meets the state condition.

In one embodiment, the screen being in a non-sensing state includes the screen not being touched within a set time, and the judgment threshold range includes a preset time;

the step of detecting the sensing parameter of the screen by the sensor includes:

starting timing after a touch sensor of the screen generates a touch sensing signal, and taking timing time as a sensing parameter of the screen;

the step of determining that the vehicle satisfies the state condition includes:

and when the induction parameter is greater than the preset time, judging that the vehicle meets the state condition.

In one embodiment, the screen being in a no-sensing state includes the driver not looking at the screen within a set time, and the judgment threshold range includes a preset time;

controlling a camera in the vehicle to generate a watching sensing signal when detecting that the sight direction of a driver stays on the screen; starting timing after the gaze sensing signal is generated, and taking timing time as a sensing parameter of the screen;

In one embodiment, before the step of detecting whether the vehicle satisfies the condition, the method further includes:

calling a condition list of screen brightness control, wherein the condition list is used for recording a plurality of state condition information; and identifying the state condition corresponding to the state condition information.

In an embodiment, the adjusting the screen brightness of the vehicle-mounted terminal according to a preset light intensity adjusting scheme includes:

reducing the screen brightness of the vehicle-mounted terminal according to the number of the satisfied state conditions and the adjustment proportion corresponding to the type of the state conditions; and when all the state conditions in the condition list are met, turning off a screen light source of the vehicle-mounted terminal.

In one embodiment, after the step of adjusting the screen brightness of the in-vehicle terminal according to a preset light intensity adjustment scheme, the method further includes:

when the screen is in an induction state, or the vehicle-mounted terminal receives a message display instruction, or the driving gear of the vehicle is switched to a reverse gear, adjusting the brightness of the screen to a bright screen state; the method comprises the steps that a screen is in a sensing state, the screen is touched, an in-vehicle camera detects that the sight line of a driver stays in the screen, and message display instructions comprise instructions for displaying one or more of incoming calls, information notifications and reverse videos.

In one embodiment, after the step when the light intensity is lower than the set light intensity threshold, the method further comprises:

and when the current speed of the vehicle is greater than the preset speed and the navigation application program of the vehicle-mounted terminal is not started when the vehicle is judged to be driven on the expressway, adjusting the screen brightness of the vehicle-mounted terminal according to a preset light intensity adjusting scheme.

receiving an application program control instruction generated by a steering wheel button of the vehicle; and executing the application program control instruction on the corresponding application program, and keeping the screen brightness unchanged.

In one embodiment, after the step of determining that the vehicle satisfies the condition, the method further includes:

controlling an application program without an execution action in the vehicle-mounted terminal to enter a sleep state; and when the brightness of the screen is enhanced to the state that the screen is in a bright screen state, controlling the application program without the execution action to end the dormancy.

A screen brightness adjustment system of a vehicle-mounted terminal includes:

the reading module is used for reading the light intensity of the environment in the vehicle detected by the optical sensor when the screen of the vehicle-mounted terminal is on bright screen;

the detection module is used for detecting whether the vehicle meets a state condition when the light intensity is lower than a set light intensity threshold, wherein the state condition comprises a condition that the driving interaction state triggers the screen brightness control;

and the adjusting module is used for adjusting the screen brightness of the vehicle-mounted terminal according to a preset light intensity adjusting scheme if the state condition is met.

A vehicle-mounted terminal comprises a screen, a memory, a processor and a computer program which is stored on the memory and can run on the processor, wherein the processor executes the computer program to realize the steps of the screen brightness adjusting method of the vehicle-mounted terminal according to any embodiment.

A vehicle comprises the vehicle-mounted terminal in any one of the above embodiments.

A computer device, comprising a memory, a processor and a computer program stored on the memory and operable on the processor, wherein the processor implements the steps of the screen brightness adjusting method of the vehicle-mounted terminal according to any of the embodiments when executing the computer program.

A computer-readable storage medium, on which a computer program is stored, which, when executed by a processor, implements the steps of the screen brightness adjustment method of the in-vehicle terminal described in any of the above embodiments.

According to the screen brightness adjusting method of the vehicle-mounted terminal, the screen brightness adjusting system of the vehicle-mounted terminal, the vehicle, the computer equipment and the storage medium, the influence of the bright screen of the vehicle-mounted terminal on the vehicle environment can be reduced in a dark environment, the interference of screen light on a driver is weakened, and therefore the driving safety of the vehicle is improved. And the application program is controlled to enter the dormancy when the action is not executed, so that the power consumption of the vehicle-mounted terminal is reduced, the dormancy of the application program is ended when the screen is bright, and the phenomenon that the application program is too long to wait for being opened again is avoided. In addition, the screen is lightened in time according to the using state of the screen, so that the information can be well displayed on the screen, and delay and influence on the screen viewed by a driver are avoided.

Additional aspects and advantages of the application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice.

Drawings

The foregoing and/or additional aspects and advantages will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is an implementation environment diagram of a screen brightness adjustment method of a vehicle-mounted terminal in an embodiment;

FIG. 2 is a flowchart illustrating a method for adjusting screen brightness of a vehicle-mounted terminal according to an embodiment;

FIG. 3 is a flowchart of a screen blanking method of a vehicle-mounted terminal according to an exemplary application;

FIG. 4 is a schematic diagram illustrating a screen brightness adjustment system of a vehicle-mounted terminal according to an embodiment;

FIG. 5 is a diagram illustrating an exemplary configuration of a vehicle-mounted terminal;

FIG. 6 is a diagram illustrating an internal structure of a vehicle-mounted terminal according to an embodiment;

FIG. 7 is a diagram showing an internal configuration of a computer device according to an embodiment.

Detailed Description

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.

As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

It will be understood by those within the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

As shown in fig. 1, fig. 1 is a diagram of an implementation environment of a screen brightness adjustment method of an in-vehicle terminal according to an embodiment, where the implementation environment includes an in-vehicle terminal 110 and a sensor 120.

The in-vehicle terminal 110 includes a screen 111, a processor 112, a storage medium 113, and a sensor 120, and the screen 111, the processor 112, the storage medium 113, and the sensor 120 are connected to each other via a system bus. The storage medium 113 stores an application program, which may be a voice assistant application program, a navigation application program, a music playing application program, and the like. The in-vehicle terminal 110 may also be connected with a sensor 120, the sensor 120 may be used to detect an internal environment of the vehicle, a screen state, a driving state of the vehicle, etc., and the sensor 120 may be a light sensor, a camera device, a touch sensor, a speed sensor, etc. The vehicle-mounted terminal 110 may be a computer device such as a tablet computer, a smart phone, a notebook computer, a desktop computer, and the like, but is not limited thereto. The in-vehicle terminal 110 may access a mobile communication network, and may have functions of receiving a call, calling a call, and connecting to the internet.

In an embodiment, as shown in fig. 2, fig. 2 is a flowchart of a screen brightness adjusting method of a vehicle-mounted terminal in an embodiment, in which the embodiment proposes a screen brightness adjusting method of a vehicle-mounted terminal, and the screen brightness adjusting method of a vehicle-mounted terminal may be applied to the vehicle-mounted terminal 110, and specifically may include the following steps:

step S210: when the screen of the vehicle-mounted terminal is in a bright screen state, the light intensity of the environment in the vehicle is detected by the light sensor.

In this step, the vehicle-mounted terminal can detect a screen control signal of the vehicle-mounted terminal, determine whether the screen control signal indicates that the screen is in a bright screen state, and read the light intensity of the environment in the vehicle detected by the optical sensor in the vehicle at the current moment when the screen is in the bright screen state. The light sensor may be a photosensitive sensor installed at one side of a screen of the in-vehicle terminal, or a front camera of the in-vehicle terminal, or a camera installed inside the vehicle.

Step S220: and when the light intensity is lower than a set light intensity threshold value, detecting whether the vehicle meets a state condition, wherein the state condition comprises a condition that the driving interaction state triggers the screen brightness control.

The state condition may be various driving interaction states that can trigger screen brightness control. The driving interaction state can be a state from a screen in an on-vehicle terminal on the vehicle, a state from an application program in the on-vehicle terminal, a driving state from the vehicle, or a state of control between the application program of the vehicle and driving. When light intensity is lower than a set light intensity threshold value, light in the automobile is dim, and the visual effect of the bright-screen light reflection phenomenon in a dark environment is particularly obvious at the moment, so that dazzling feeling is brought to a driver.

In this step, when the light intensity is lower than the set light intensity threshold, whether the vehicle meets the state condition is detected, and the vehicle-mounted terminal can acquire the current driving interaction state of the vehicle and judge whether the current driving interaction state of the vehicle belongs to the driving interaction state corresponding to the state condition.

Step S230: and if the state condition is met, adjusting the screen brightness of the vehicle-mounted terminal according to a preset light intensity adjusting scheme.

The preset light intensity adjusting scheme can record the mode of adjusting the screen brightness, the screen brightness can be reduced, and even the screen of the vehicle-mounted terminal is controlled to be turned off. When the driver does not use the screen and the screen is not in use and needs of the driver, the brightness of the screen can be adjusted, and the distraction of the attention of the driver is avoided as much as possible.

The screen brightness can be reduced by reducing the light source intensity of the backlight source of the screen, and the screen can be extinguished by turning off the backlight source of the screen; in other ways, a color layer with a specific gray level may be covered on the display interface in the display control of the screen, the color layer may be transparent or semi-transparent, the color layer with the specific gray level may weaken the brightness exhibited by the screen, the color layer with the gray level closer to white has a weaker ability to reduce the brightness, the color layer with the gray level closer to black has a stronger ability to reduce the brightness, the opaque color layer with black has a strongest ability to reduce the brightness, and when the opaque color layer with black covers the display interface, the screen may be turned off.

Preferably, in the use process of a general screen, the content in the screen is not visible to the user due to too low screen brightness, which affects the user to obtain information, and therefore, in the prior art, the screen brightness cannot be adjusted to be too low or low enough, and at this time, the bright screen still brings obvious or even serious reflection and glaring phenomena in a dark environment. Therefore, if the state condition is met, the screen of the vehicle-mounted terminal can be directly controlled to be turned off.

According to the screen brightness adjusting method of the vehicle-mounted terminal, the influence of the bright screen of the vehicle-mounted terminal on the vehicle environment can be reduced in a dark environment, the interference of screen light on a driver is weakened, and therefore the safety of vehicle driving is improved.

In one embodiment, the state condition may include specifying that the application is in a standby state;

the step of detecting whether the vehicle satisfies the condition in step S220 may include:

a10: and determining the specified application program on the vehicle-mounted terminal according to the state condition.

In this step, the application program that needs to satisfy the state condition is determined.

A20: and inquiring the task state of the specified application program from the vehicle-mounted terminal.

In this step, the current task state of the specified application program on the vehicle-mounted terminal is called. And if the application program is identified to perform a corresponding task or the task in the processing of the application program is extracted, the designated application program performs substantive work, and the designated application program is in a running state. If it is not recognized that the application is doing any substantive work, or there is no task in the task list to be processed, the application is in a standby state.

A30: when the task state indicates that the designated application is in a standby state, it is determined that the vehicle satisfies the state condition.

In this step, the standby state refers to a state in which the application program is turned on but does not perform any substantial work, and the application program does not perform various operations on files and data. In the standby state, the data in the standby state is stored in the memory, the data is stored in the memory with high speed, the standby state is entered, and the subsequent awakening speed of the application program is high.

According to the screen brightness adjusting method of the vehicle-mounted terminal, the application program does not perform any substantive work, the application program does not need to display information to the driver temporarily through the screen of the vehicle-mounted terminal at the moment, and the vehicle can be judged to meet the state condition, so that the screen brightness can be adjusted subsequently, the dazzling effect of the screen is weakened, the influence on the driver is reduced, and the driving safety is improved.

The above describes detecting whether the vehicle satisfies the status condition according to the task status of the application, and the following describes detecting and determining whether the status condition is satisfied according to the navigation application and the voice assistant application, respectively, by way of example.

In one embodiment, specifying the application to be in the standby state may include the voice assistant application being in a non-awake working state, and/or the navigation application of the in-vehicle terminal being in a non-task state;

the step of querying the task state of the specified application from the vehicle-mounted terminal in a20 may include:

a21: and inquiring the working state of the voice assistant application program of the vehicle-mounted terminal and inquiring the task state of the navigation application program of the vehicle-mounted terminal.

In this step, whether the voice assistant application program is not awakened or not is judged according to the query result, and whether the navigation application program is in no task operation or is to be operated or not is judged.

In a30, when the task state indicates that the designated application is in the standby state, the step of determining that the vehicle satisfies the state condition may include:

a31: and when the inquired working state indicates that the voice assistant application program is not awakened, and/or when the inquired task state indicates that the navigation application program is in no-task operation or is waiting to operate, judging that the vehicle meets the state condition.

When the queried operating state indicates that the voice assistant application program is not awakened, it can be determined that the vehicle meets the state condition; when the inquired task state represents that the navigation application program runs without a task or waits to run, the vehicle can be judged to meet the state condition; and when the inquired working state shows that the voice assistant application program is not awakened and the inquired task state shows that the navigation application program is in no-task operation, judging that the vehicle meets the state condition.

According to the screen brightness adjusting method of the vehicle-mounted terminal, the voice assistant application program is not awakened, the voice assistant application program does not need to improve voice intelligent service for a driver temporarily at the moment, or the navigation application program does not run in a task mode or waits to run, the navigation application program does not need to display navigation path information for the driver temporarily through the screen of the vehicle-mounted terminal at the moment, the vehicle-mounted terminal enters a standby state at the moment, the condition that a vehicle meets the state can be judged, so that the screen brightness can be adjusted subsequently, the dazzling effect of the screen is weakened, the influence on the driver is reduced, and therefore the driving safety is improved.

The above embodiments illustrate the detection of whether the vehicle satisfies the status condition according to the application program, and the detection of whether the vehicle satisfies the status condition according to the sensed condition of the screen will be described below.

In one embodiment, the status condition may include the screen being in a no-sense state;

b10: determining the induction parameters and a judgment threshold range of the screen according to the state conditions, wherein the judgment threshold range is used for representing that the screen is in a non-induction state;

in this step, the sensing parameters to be detected are determined and a judgment threshold range for judging whether the screen is in a non-sensing state is determined. The screen is corresponding to the sensing parameters needing to be detected in different sensing states.

B20: detecting sensing parameters of a screen through a sensor;

in this step, the sensor obtains the sensing parameters related to the screen, and the sensing parameters can be used for representing the current situation of the screen.

For example, whether the screen is touched or not and whether the screen is not touched for a long time can be detected through the touch sensor, whether the screen is watched or not by a driver or a user and whether the screen is not watched for a long time can be detected through the camera, and the screen brightness or the light intensity in the vehicle and the like can be detected through equipment such as a photosensitive sensor and a camera device.

B30: and when the induction parameters of the screen are in the judgment threshold range, judging that the vehicle meets the state condition.

In the step, the screen is in a non-induction state, the screen of the vehicle-mounted terminal is not used and concerned by a driver or a user, the use demand degree of the screen of the vehicle-mounted terminal is low, and the condition that the vehicle meets the state condition is judged.

According to the screen brightness adjusting method of the vehicle-mounted terminal, the sensor detects the sensing information related to the screen, so that the use requirement condition of the screen is determined, the condition that the vehicle meets the state is judged when the use requirement degree of the screen of the vehicle-mounted terminal is low, the screen brightness is adjusted subsequently, the dazzling effect of the screen is weakened, the influence on a driver is reduced, and the driving safety is improved.

In one embodiment, the vehicle-mounted terminal with a touch display screen is taken as an example to illustrate the judgment of whether the state condition is met, the screen being in the non-induction state may include that the screen is not touched within a set time, and the judgment threshold range may include a preset time;

the step of detecting the sensing parameter of the screen by the sensor in B20 may include:

b21: and starting timing after a touch sensor of the screen generates a touch sensing signal, and taking the timing time as a sensing parameter of the screen.

The touch display screen is provided with a touch sensor, and the touch sensor can generate a touch sensing signal after an external object touches the screen.

The step of determining that the vehicle satisfies the condition in B30 may include:

b31: and when the induction parameter is greater than the preset time, judging that the vehicle meets the state condition.

According to the screen brightness adjusting method of the vehicle-mounted terminal, when the induction parameter is larger than the preset time, the screen can be represented not to be touched for a long time, the using demand degree of the screen of the vehicle-mounted terminal is low, and the condition that a vehicle meets the state can be judged, so that the screen brightness can be adjusted subsequently, the dazzling effect of the screen is weakened, the influence on a driver is reduced, and the driving safety is improved.

In a specific application example, the vehicle-mounted terminal receives a touch sensor of the screen to generate a touch sensing signal and records touch time for generating the touch sensing signal; and calling the touch time when the latest touch induction signal is generated, calculating the touch time difference between the touch time and the current time, wherein when the touch time difference is more than 3 minutes, the screen is not touched for a long time, the use demand degree of the screen of the vehicle-mounted terminal is low, and the condition that the vehicle meets the state condition can be judged.

The previous embodiment illustrates the use requirement of the screen of the vehicle-mounted terminal detected on the touch sensing, and the next embodiment detects the use requirement of the screen of the vehicle-mounted terminal from another angle, such as through the sight line sensing.

In one embodiment, the driver sight direction and the screen position are taken as examples to illustrate the judgment of whether the state condition is met, the screen being in the non-induction state may include that the driver does not watch the screen within a set time, and the judgment threshold range may include a preset time;

b22: and controlling the camera in the vehicle to generate a watching sensing signal when detecting that the sight direction of the driver stays on the screen.

The in-vehicle camera may be mounted on a camera device inside the vehicle for detecting the driver's line of sight. Meanwhile, the screen position is well marked in the shot picture, when the sight line falls into the screen position and is maintained for a certain duration, the driver can be determined to watch the screen, and a watching sensing signal is generated

In addition, the camera in the vehicle can also be a front camera of the vehicle-mounted terminal, when the driver looks over the screen, the driver is shot and the sight line of the driver is detected, and the front camera is preferably provided with a wide-angle lens so as to shoot the panoramic view in the vehicle.

B23: and starting timing after the gaze sensing signal is generated, and taking the timing time as a sensing parameter of the screen.

b32: and when the induction parameter is greater than the preset time, judging that the vehicle meets the state condition.

According to the screen brightness adjusting method of the vehicle-mounted terminal, when the induction parameter is larger than the preset time, the fact that a driver does not watch or look up the screen for a long time can be indicated, the using demand degree of the screen of the vehicle-mounted terminal is low, the fact that the vehicle meets the state condition can be judged, the screen brightness can be adjusted subsequently, the dazzling effect of the screen is weakened, the influence on the driver is reduced, and therefore driving safety is improved.

In a specific application example, according to a picture shot by an in-vehicle camera of the vehicle, detecting the sight direction of a driver in the vehicle and calibrating the screen position of the screen; when the sight direction of the driver stays in the screen position and is maintained for 2 seconds or more, the vehicle-mounted terminal generates a watching sensing signal and records the watching moment of the watching sensing signal; and calculating the watching time difference between the watching time and the current time, wherein when the watching time difference is more than 3 minutes, the screen is not watched or viewed for a long time, the use demand degree of the screen of the vehicle-mounted terminal is low, and the condition that the vehicle meets the state condition can be judged.

In one embodiment, before the step of detecting whether the vehicle satisfies the condition in step S220, the method may further include:

step S241: calling a condition list of screen brightness control, wherein the condition list is used for recording a plurality of state condition information;

step S242: and identifying the state condition corresponding to the state condition information.

In the above mode of acquiring the state condition, when the light intensity is lower than the set light intensity threshold, that is, when the screen is bright and the interior of the vehicle is dark, the vehicle-mounted terminal calls a condition list which can be used for controlling the screen brightness, records a plurality of state conditions for controlling the screen brightness adjustment in the condition list, and acquires the state condition from the condition list.

And the vehicle-mounted terminal acquires the current driving interaction state of the vehicle according to the state condition and judges whether the current driving interaction state of the vehicle belongs to the driving interaction state corresponding to the state condition. If the condition list includes a plurality of state conditions, whether the vehicle satisfies the state conditions or not can be detected according to the requirement of screen brightness control, and whether the vehicle satisfies each state condition or not can also be detected.

In an embodiment, the adjusting the screen brightness of the in-vehicle terminal according to the preset light intensity adjusting scheme in step S230 may include:

s231: and reducing the screen brightness of the vehicle-mounted terminal according to the number of the satisfied state conditions and the adjustment proportion corresponding to the type of the state conditions.

The adjustment proportion can be designed step by step according to the number, and the screen brightness can be adjusted step by step when the satisfied state conditions increase. Alternatively, the adjustment ratio of the screen brightness may be set according to the type of the status condition, according to the weight of the type. A darker screen brightness is assigned to the type of state condition that significantly affects driving.

The screen brightness of the vehicle-mounted terminal can be reduced by reducing the light source brightness of the vehicle-mounted terminal or superposing a color layer for attenuating the light intensity on the display interface.

S232: and when all the state conditions in the condition list are met, turning off the screen light source of the vehicle-mounted terminal.

According to the screen brightness adjusting method of the vehicle-mounted terminal, the brightness of the screen of the vehicle-mounted terminal can be gradually reduced or the screen light source of the vehicle-mounted terminal is turned off, the dazzling effect of the screen is greatly weakened or eliminated, the driver is prevented from being influenced to drive the vehicle with great concentration, and the driving safety is improved.

In an application mode, the number of the satisfied state conditions and the adjustment proportion corresponding to the type of the state conditions can be preset, the assumed state conditions include A, B, C and D conditions, the screen brightness can be reduced by 20% when the condition A is satisfied, the screen brightness can be reduced by 10% when the condition B is satisfied, the screen brightness can be reduced by 20% when the condition C is satisfied, the screen brightness can be reduced by 50% when the condition D is satisfied, the adjustment proportions can be accumulated when a plurality of state conditions are satisfied, and as the four conditions A, B, C and D are satisfied simultaneously, the adjustment proportion can be 100%, that is, the screen can be extinguished.

In one embodiment, after the step of adjusting the screen brightness of the in-vehicle terminal according to a preset light intensity adjustment scheme, the method may further include:

when the screen is in an induction state, or the vehicle-mounted terminal receives a message display instruction, or the driving gear of the vehicle is switched to reverse gear, the brightness of the screen is adjusted to be in a bright screen state; the screen is in a sensing state, the screen is touched and the driver's sight line is detected to stay in the screen by the camera in the vehicle, and the message display instruction can comprise one or more of instructions for displaying an incoming call, displaying an information notification and displaying a reversing video.

According to the screen brightness adjusting method of the vehicle-mounted terminal, the screen is sensed, and when a new message display instruction needs to be executed is received, the screen is called to display related information according to the requirement, so that the screen is lightened in time, the information is well displayed on the screen, and delay and influence on the use and the viewing of the screen by a driver are avoided. In addition, when the driving gear of the vehicle is switched to the reverse gear, the screen can be lightened, so that a driver can use the screen conveniently, for example, the screen can be searched to call a driving assisting function to assist in backing up.

For example, when the screen is touched, the touch sensor of the screen generates touch induction; when the gear of the vehicle is switched to a reverse gear, the vehicle-mounted terminal displays a reverse video; receiving incoming calls or receiving information notifications, the vehicle-mounted terminal needs to correspondingly display the calls and the information notifications. The screen can be adjusted to be in a bright screen state when touch sensing is generated by a touch sensor receiving the screen, when a watching sensing signal is received, or when a call incoming call is received, or a message notification is received, or when one or more conditions that the gear of the vehicle is switched to a reverse gear are detected.

In one embodiment, after the step when the light intensity is lower than the set light intensity threshold, the method further includes:

s251: and when the current speed of the vehicle is greater than the preset speed and the navigation application program of the vehicle-mounted terminal is not started when the vehicle is judged to be driven on the expressway, adjusting the screen brightness of the vehicle-mounted terminal according to a preset light intensity adjusting scheme.

Whether the vehicle runs on the expressway is detected through the camera, the current speed of the vehicle is called, and whether a navigation application program of the vehicle-mounted terminal is started is detected. The camera can shoot the road environment outside the vehicle, and the shot picture is detected through the vehicle-mounted terminal, and whether the current driving road is the expressway is judged. The vehicle-mounted terminal can call the current vehicle speed of the vehicle detected by the vehicle speed sensor, and the current vehicle speed can be used for judging whether the vehicle runs at a high speed. Whether the navigation application program of the vehicle-mounted terminal is started or not is detected, whether the actual navigation work is carried out or not is detected, and whether the navigation application program is executing the navigation task or not can be judged.

When the vehicle runs on the highway at a high speed and the speed of the vehicle exceeds a preset speed (for example, 110km/h), and navigation is not started, a driver needs to concentrate on road information and select a driving route, and interference of a bright vehicle-mounted terminal is avoided as much as possible.

The screen brightness adjusting method of the vehicle-mounted terminal can adjust the screen brightness of the vehicle-mounted terminal in time, reduce the influence of bright screen on the safety of high-speed road driving, and improve the safety of high-speed driving.

s261: receiving an application program control instruction generated by a steering wheel button of a vehicle;

s262: and executing the application program control instruction on the corresponding application program, and keeping the screen brightness unchanged.

According to the screen brightness adjusting method of the vehicle-mounted terminal, after the application program of the vehicle-mounted terminal is controlled by the steering wheel button to execute the command, the screen still keeps the adjusted brightness, the screen cannot be bright, the influence of the bright screen of the screen on driving is avoided, and the driving safety is improved.

For example, after the driver switches the song of the music playing application program, turns down the volume of the volume control program, or wakes up the state of the voice assistant application program through the steering wheel button of the vehicle, the brightness of the screen still maintains the adjusted brightness, and the vehicle-mounted terminal does not turn on the screen.

In one embodiment, after the step of determining that the vehicle satisfies the condition, the method may further include:

s271: controlling an application program without an execution action in the vehicle-mounted terminal to enter a sleep state;

s272: and when the brightness of the screen is enhanced to the state that the screen is in a bright screen state, controlling the application program without the execution action to end the dormancy.

According to the screen brightness adjusting method of the vehicle-mounted terminal, after the step of judging that the vehicle meets the state condition, the screen brightness of the vehicle-mounted terminal is adjusted, at the moment, the application program which does not execute the action enters the dormancy state, the power consumption of the vehicle-mounted terminal is reduced, and when the screen is bright, the dormancy state of the application program is finished, so that the situation that the application program is opened again after long waiting is avoided.

If the navigation application program is not executing the start navigation, but is navigating, the vehicle-mounted terminal can control the navigation application program to enter the dormancy and suspend the navigation after the screen brightness is adjusted, and the navigation is resumed when the screen is resumed to be bright. If the music playing application program does not generate execution actions, but the screen brightness is adjusted when the music is played, the vehicle-mounted terminal can control the music playing application program to enter the dormancy state and suspend the music playing, and when the screen is recovered to be bright, the music playing is recovered.

In an application example, as shown in fig. 3, fig. 3 is a flowchart of a screen blanking method of a vehicle-mounted terminal in an application example, and the application example provides a screen brightness adjustment method of the vehicle-mounted terminal, which may specifically include the following steps:

s310, the vehicle-mounted terminal can detect a screen control signal of the vehicle-mounted terminal and read the light intensity of the environment in the vehicle detected by the light sensor in the vehicle at the current moment. The screen control signal indicates that the screen is in a bright screen, and the screen is bright; when the light intensity is lower than the set light intensity threshold value, the light environment in the vehicle is in a dark state.

S320, judging whether the current screen is in a bright screen state or not and whether the light line environment in the vehicle is in a dark state or not.

S330, if yes, further judging whether the state condition of adjusting the screen brightness is met. The state condition of adjusting the screen brightness may include: the application is designated to be in a standby state and the screen is designated to be in a non-sensing state. Specifically, the condition of adjusting the screen brightness may include: the voice assistant application is in a non-awake working state, the navigation application is in a no-task state, the screen is not touched for a set time, and the driver is not looking at the screen for a set time.

And inquiring the working state of the voice assistant application program of the vehicle-mounted terminal and inquiring the task state of the navigation application program of the vehicle-mounted terminal. The vehicle-mounted terminal receives a touch sensor of the screen to generate a touch sensing signal and records the touch time of the touch sensing signal; and calling the touch time when the latest touch induction signal is generated, calculating the touch time difference between the touch time and the current time, wherein when the touch time difference is more than 3 minutes, the screen is not touched for a long time, and the screen is not touched within the set time. Detecting the sight direction of a driver in the vehicle and calibrating the screen position of the screen through an in-vehicle camera of the vehicle; when the sight direction of the driver stays in the screen position and is maintained for 2 seconds or more, the vehicle-mounted terminal generates a watching sensing signal and records the watching moment of the watching sensing signal; and calculating the watching time difference between the watching time and the current time, wherein when the watching time difference is more than 3 minutes, the screen is not watched or viewed for a long time, which indicates that the driver does not watch the screen within the set time.

And S340, if the state conditions of the screen brightness adjustment are met, turning off the screen. The screen can be extinguished by a screen light source of the vehicle-mounted terminal, or a black opaque color layer can be used for covering the display interface of the screen, so that the effect of weakening the screen brightness is enhanced.

In addition, when the vehicle is judged to be running on the highway, the current speed is higher than the preset speed, and the navigation application program is not started, the screen is automatically turned off, the screen is prevented from distracting the attention of a driver, and the driving safety is improved.

After the screen is extinguished, when the application program is operated through a steering wheel button of the vehicle and relevant functions are realized, if songs are switched, the volume is adjusted, and a voice assistant is awakened, the screen cannot be lightened. In addition, after the screen is turned off, the application program running in the vehicle-mounted terminal can be controlled to enter the dormancy state, the running power consumption of the vehicle-mounted terminal is reduced, and the running of the application program and the execution of the task can be resumed after the subsequent screen is turned on. For example, if the navigation application is not executing the start navigation, but is navigating, after the screen brightness is adjusted, the vehicle-mounted terminal may control the navigation application to enter the sleep mode and suspend the navigation, and when the screen is turned on, the navigation is resumed. If the music playing application program does not generate execution actions, but the screen brightness is adjusted when the music is played, the vehicle-mounted terminal can control the music playing application program to enter the dormancy state and suspend the music playing, and when the screen is recovered to be bright, the music playing is recovered.

And S350, if any state condition of starting the screen is met, lightening the screen.

The screen is touched, the driver's sight line is detected to stay in the screen by the camera in the vehicle, the vehicle-mounted terminal displays one or more of incoming call, information notification and reverse video, and then the screen is lightened.

In one embodiment, the driver's gaze direction staying in the screen position for 2 seconds or more may indicate that the in-vehicle camera detects that the driver's gaze stays in the screen. The touch sensor of the screen generates a touch sensing signal, which indicates that the screen is touched. And when the gear of the vehicle is detected to be switched to a reverse gear, displaying a reverse video.

By the method, the screen can be extinguished in a dark environment, the influence of the bright screen of the vehicle-mounted terminal on the vehicle environment can be eliminated, the interference of screen light on a driver is eliminated, and therefore the safety of vehicle driving is improved. And the application program is controlled to enter the dormancy when the action is not executed, so that the power consumption of the vehicle-mounted terminal is reduced, and the dormancy of the application program is ended when the screen is bright, so that the time for reopening the application program is avoided being wasted. In addition, the screen is lightened in time according to the using state of the screen, so that the information can be well displayed on the screen, and delay and influence on the screen viewed by a driver are avoided.

In an embodiment, as shown in fig. 4, fig. 4 is a schematic structural diagram of a screen brightness adjustment system of a vehicle-mounted terminal in an embodiment, and the present embodiment provides a screen brightness adjustment system of a vehicle-mounted terminal, which may specifically include a reading module 410, a calling module 420, a detecting module 430, and an adjusting module 440, where:

the reading module 410 is configured to read the light intensity of the environment in the vehicle detected by the optical sensor when the screen of the vehicle-mounted terminal is on a bright screen.

In the reading module 410, the vehicle-mounted terminal may detect a screen control signal of the vehicle-mounted terminal, determine whether the screen control signal indicates that the screen is in a bright screen state, and read the light intensity of the environment in the vehicle detected by the optical sensor in the vehicle at the current time when the screen is in the bright screen state. The light sensor may be a photosensitive sensor installed at one side of a screen of the in-vehicle terminal, or a front camera of the in-vehicle terminal, or a camera installed inside the vehicle.

The detecting module 420 is configured to detect whether the vehicle meets a state condition when the light intensity is lower than a set light intensity threshold, where the state condition includes a condition that the driving interaction state triggers the screen brightness control.

In the detecting module 420, when the light intensity is lower than the set light intensity threshold, whether the vehicle meets the state condition is detected, and the vehicle-mounted terminal can obtain the current driving interaction state of the vehicle and judge whether the current driving interaction state of the vehicle belongs to the driving interaction state corresponding to the state condition.

And the adjusting module 430 is configured to adjust the screen brightness of the vehicle-mounted terminal according to a preset light intensity adjusting scheme if the state condition is met.

The preset light intensity adjusting scheme can record the mode of adjusting the screen brightness, the screen brightness can be reduced, and even the screen of the vehicle-mounted terminal is controlled to be turned off.

The screen brightness can be reduced by reducing the light source intensity of the backlight source of the screen, and the screen can be extinguished by turning off the backlight source of the screen; in other manners, a display interface may be covered with a color layer with a specific gray level in the display control of the screen, the color layer may be transparent or semi-transparent, the color layer with the specific gray level may weaken the brightness exhibited by the screen, the color layer with the gray level closer to white has a weaker ability to reduce the brightness, the color layer with the gray level closer to black has a stronger ability to reduce the brightness, the opaque color layer with black has a strongest ability to reduce the brightness, and the opaque color layer with black may be regarded as the screen being turned off when the display interface is covered with the opaque color layer with black.

Preferably, in the use process of a general screen, the content in the screen is not visible to the user due to too low screen brightness, which affects the user to obtain information, and therefore, in the prior art, the screen brightness cannot be adjusted to be too low or low enough, and at this time, the bright screen still causes obvious or even serious reflection and glaring phenomena in a dark environment. Therefore, if the state condition is met, the screen of the vehicle-mounted terminal can be directly controlled to be turned off.

According to the screen brightness adjusting system of the vehicle-mounted terminal, the influence of the bright screen of the vehicle-mounted terminal on the vehicle environment can be reduced in the dark environment, the interference of screen light on a driver is weakened, and therefore the driving safety of the vehicle is improved.

For specific limitations of the screen brightness adjustment system of the vehicle-mounted terminal, reference may be made to the above limitations of the screen brightness adjustment method of the vehicle-mounted terminal, and details are not repeated here. All or part of the modules in the screen brightness adjusting system of the vehicle-mounted terminal can be realized by software, hardware and a combination thereof. The modules can be embedded in a hardware form or independent from a processor in the computer device, and can also be stored in a memory in the computer device in a software form, so that the processor can call and execute operations corresponding to the modules.

In one embodiment, as shown in fig. 5, fig. 5 is a schematic structural diagram of a vehicle-mounted terminal in one embodiment. The embodiment also provides an in-vehicle terminal, which may include a screen 510, a memory 520, a processor 530, and a computer program 521 stored in the memory 520 and operable on the processor 530, where when the processor 530 executes the computer program, the steps of the screen brightness adjustment method of the in-vehicle terminal according to any one of the embodiments described above are implemented.

An embodiment of the present application further provides a vehicle-mounted terminal, and as shown in fig. 6, fig. 6 is a schematic diagram of an internal structure of the vehicle-mounted terminal in one embodiment. For convenience of explanation, only the parts related to the embodiments of the present application are shown, and details of the specific technology are not disclosed. The terminal can be any terminal equipment including a mobile phone, a tablet computer, a vehicle-mounted computer and the like, and the vehicle-mounted terminal is taken as the tablet computer as an example:

fig. 6 is a block diagram illustrating a partial structure of a tablet computer related to a terminal provided in an embodiment of the present application. Referring to fig. 6, the tablet computer includes: radio Frequency (RF) circuit 610, memory 620, input unit 630, display unit 640, sensor 650, audio circuit 660, wireless fidelity (Wi-Fi) module 670, processor 680, and power supply 690. Those skilled in the art will appreciate that the tablet configuration shown in fig. 6 is not intended to be a limitation of a tablet and may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components.

In the embodiment of the present application, the processor 680 included in the in-vehicle terminal further has the following functions: when a screen of the vehicle-mounted terminal is on bright screen, reading the light intensity of the environment in the vehicle detected by the optical sensor; when the light intensity is lower than a set light intensity threshold value, calling a condition list of screen brightness control, wherein the condition list records a plurality of state conditions of brightness control execution; reading the state conditions in the condition list, and detecting whether the vehicle meets the state conditions currently; and if the state condition is met, adjusting the screen brightness of the vehicle-mounted terminal according to a preset light intensity adjusting scheme. That is, the processor 1580 has a function of executing the method for adjusting the screen brightness of the vehicle-mounted terminal according to any of the embodiments described above, and details are not described herein.

In one embodiment, a vehicle is provided in the present embodiment, and the vehicle may include the in-vehicle terminal described in any of the above embodiments.

Fig. 7 is a schematic diagram of an internal structure of a computer device according to an embodiment, as shown in fig. 7. In one embodiment, a computer device is provided, and the computer device may be a terminal, and its internal structure diagram may be as shown in fig. 7, and fig. 7 is an internal structure diagram of the computer device in one embodiment. The computer device includes a processor, a memory, a network interface, a display screen, and an input device connected by a system bus. Wherein the processor of the computer device is configured to provide computing and control capabilities. The memory of the computer device comprises a nonvolatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of an operating system and computer programs in the non-volatile storage medium. The network interface of the computer device is used for communicating with an external terminal through a network connection. The computer program is executed by a processor to implement a screen brightness adjustment method of a vehicle-mounted terminal. The display screen of the computer equipment can be a liquid crystal display screen or an electronic ink display screen, and the input device of the computer equipment can be a touch layer covered on the display screen, a key, a track ball or a touch pad arranged on the shell of the computer equipment, an external keyboard, a touch pad or a mouse and the like.

Those skilled in the art will appreciate that the architecture shown in fig. 7 is merely a block diagram of some of the structures associated with the disclosed aspects and is not intended to limit the computing devices to which the disclosed aspects apply, as particular computing devices may include more or less components than those shown, or may combine certain components, or have a different arrangement of components.

In one embodiment, a computer device is provided, which includes a memory, a processor, and a computer program stored on the memory and executable on the processor, and when the processor executes the computer program, the steps of the screen brightness adjustment method of the in-vehicle terminal described in any of the above embodiments are implemented.

In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored, which when executed by a processor implements the steps of the screen brightness adjustment method of the in-vehicle terminal described in any of the above embodiments.

It should be understood that, although the steps in the flowcharts of the figures are shown in order as indicated by the arrows, the steps are not necessarily performed in order as indicated by the arrows. The steps are not performed in the exact order shown and may be performed in other orders unless explicitly stated herein. Moreover, at least a portion of the steps in the flow chart of the figure may include multiple sub-steps or multiple stages, which are not necessarily performed at the same time, but may be performed at different times, which are not necessarily performed in sequence, but may be performed alternately or alternately with other steps or at least a portion of the sub-steps or stages of other steps.

The foregoing is only a partial embodiment of the present application, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present application, and these modifications and decorations should also be regarded as the protection scope of the present application.

Claims

1. A screen brightness adjusting method of a vehicle-mounted terminal is characterized by comprising the following steps:

2. The screen brightness adjustment method of the in-vehicle terminal according to claim 1, wherein the status condition includes a designation of an application in a standby state;

the step of detecting whether the vehicle satisfies the condition includes:

determining a designated application program on the vehicle-mounted terminal according to the state condition;

inquiring the task state of the specified application program from the vehicle-mounted terminal;

and when the task state indicates that the specified application program is in a standby state, determining that the vehicle meets the state condition.

3. The screen brightness adjusting method of the vehicle-mounted terminal according to claim 2, wherein the designated application program being in a standby state comprises a voice assistant application program being in a non-wake-up working state and/or a navigation application program of the vehicle-mounted terminal being in a no-task state;

4. The screen brightness adjusting method of the vehicle-mounted terminal according to claim 1, wherein the state condition includes that the screen is in a non-sensing state;

the step of detecting whether the vehicle satisfies the condition includes:

determining the sensing parameters and a judgment threshold range of the screen according to the state condition, wherein the judgment threshold range is used for representing that the screen is in a non-sensing state;

sensing parameters of the screen through a sensor;

and when the induction parameters of the screen are in the judgment threshold range, judging that the vehicle meets the state condition.

5. The screen brightness adjusting method of the vehicle-mounted terminal according to claim 4, wherein the screen being in a non-sensing state includes the screen not being touched within a set time, and the judgment threshold range includes a preset time;

6. The screen brightness adjusting method of the vehicle-mounted terminal according to claim 4, wherein the screen being in a non-sensing state includes that a driver does not watch the screen within a set time, and the judgment threshold range includes a preset time;

controlling a camera in the vehicle to generate a watching sensing signal when detecting that the sight direction of a driver stays on the screen;

starting timing after the gaze sensing signal is generated, and taking timing time as a sensing parameter of the screen;

7. The screen brightness adjusting method of an in-vehicle terminal according to claim 1, further comprising, before the step of detecting whether the vehicle satisfies the condition:

calling a condition list of screen brightness control, wherein the condition list is used for recording a plurality of state condition information;

and identifying the state condition corresponding to the state condition information.

8. The method for adjusting the screen brightness of the vehicle-mounted terminal according to claim 7, wherein the step of adjusting the screen brightness of the vehicle-mounted terminal according to a preset light intensity adjustment scheme comprises:

reducing the screen brightness of the vehicle-mounted terminal according to the number of the satisfied state conditions and the adjustment proportion corresponding to the type of the state conditions;

and when all the state conditions in the condition list are met, turning off a screen light source of the vehicle-mounted terminal.

9. The method for adjusting the screen brightness of the vehicle-mounted terminal according to claim 1, wherein after the step of adjusting the screen brightness of the vehicle-mounted terminal according to the preset light intensity adjustment scheme, the method further comprises:

when the screen is in an induction state, or the vehicle-mounted terminal receives a message display instruction, or the driving gear of the vehicle is switched to a reverse gear, adjusting the brightness of the screen to a bright screen state;

the method comprises the steps that a screen is in a sensing state, the screen is touched, an in-vehicle camera detects that the sight line of a driver stays in the screen, and message display instructions comprise instructions for displaying one or more of incoming calls, information notifications and reverse videos.

10. The screen brightness adjusting method of the vehicle-mounted terminal according to claim 1, wherein after the step when the light intensity is lower than the set light intensity threshold, the method further comprises:

11. The method for adjusting the screen brightness of the vehicle-mounted terminal according to claim 1, wherein after the step of adjusting the screen brightness of the vehicle-mounted terminal according to the preset light intensity adjustment scheme, the method further comprises:

receiving an application program control instruction generated by a steering wheel button of the vehicle;

and executing the application program control instruction on the corresponding application program, and keeping the screen brightness unchanged.

12. The screen brightness adjustment method of the in-vehicle terminal according to claim 1, further comprising, after the step of determining that the vehicle satisfies the condition, a step of:

controlling an application program without an execution action in the vehicle-mounted terminal to enter a sleep state;

and when the brightness of the screen is enhanced to the state that the screen is in a bright screen state, controlling the application program without the execution action to end the dormancy.

13. A screen brightness adjustment system of a vehicle-mounted terminal is characterized by comprising:

14. An in-vehicle terminal, characterized by comprising a screen, a memory, a processor and a computer program stored on the memory and operable on the processor, wherein the processor implements the steps of the screen brightness adjustment method of the in-vehicle terminal according to any one of claims 1 to 12 when executing the computer program.

15. A vehicle characterized by comprising the in-vehicle terminal according to claim 14.