Vehicle-mounted liquid crystal screen brightness adjusting method, device, equipment and medium

Abstract

The invention discloses a vehicle-mounted liquid crystal screen brightness adjusting method and device, equipment and a medium. The method comprises the steps that the real-time speed, the driving duration and the driver age of a to-be-adjusted vehicle and the real-time brightness value of a vehicle-mounted liquid crystal screen of the to-be-adjusted vehicle are obtained; calculating a to-be-adjusted brightness value of the vehicle-mounted liquid crystal screen according to the real-time vehicle speed, the driving duration and the age of the driver of the to-be-adjusted vehicle; calculating a brightness adjustment proportion according to the brightness value to be adjusted and the real-time brightness value; and determining a brightness adjustment value of the vehicle-mounted liquid crystal screen according to the brightness adjustment proportion, and adjusting the brightness of the vehicle-mounted liquid crystal screen according to the brightness adjustment value. According to the embodiment of the invention, the accuracy of brightness adjustment of the vehicle-mounted liquid crystal screen can be improved.

Description

Technical Field

[0001] The present invention relates to the field of data processing technology, and in particular to a method, device, equipment and medium for adjusting the brightness of a vehicle-mounted liquid crystal screen. Background Art

[0002] With the rapid development of science and technology, the types of vehicles are gradually increasing. Vehicles are equipped with on-board LCD screens, through which drivers can observe vehicle driving data. The brightness of the on-board LCD screen needs to be adjusted in different vehicle operating environments.

[0003] Currently, the brightness of the vehicle-mounted LCD screen is adjusted by the ambient light intensity.

[0004] However, if the brightness of the vehicle-mounted LCD screen is adjusted only according to the ambient light intensity, the adjustment result is not accurate enough, and the adjusted brightness may not meet the driving needs of the driver. Summary of the invention

[0005] The present invention provides a method, device, equipment and medium for adjusting the brightness of a vehicle-mounted liquid crystal screen, so as to improve the accuracy of adjusting the brightness of the vehicle-mounted liquid crystal screen.

[0006] In a first aspect, an embodiment of the present invention provides a method for adjusting the brightness of a vehicle-mounted liquid crystal screen, the method comprising:

[0007] Obtain the real-time speed, driving time, driver age and brightness value of the vehicle to be adjusted;

[0008] The brightness value to be adjusted of the vehicle-mounted LCD screen is calculated according to the real-time vehicle speed, driving time and driver age of the vehicle to be adjusted;

[0009] The brightness adjustment ratio is calculated according to the brightness value to be adjusted and the real-time brightness value;

[0010] The brightness adjustment value of the vehicle-mounted LCD screen is determined according to the brightness adjustment ratio, and the brightness of the vehicle-mounted LCD screen is adjusted according to the brightness adjustment value.

[0011] In a second aspect, an embodiment of the present invention further provides a vehicle-mounted liquid crystal screen brightness adjustment device, the device comprising:

[0012] A data acquisition module is used to acquire the real-time speed, driving time, driver age and brightness value of the vehicle to be adjusted, of the vehicle to be adjusted;

[0013] A brightness value calculation module is used to calculate the brightness value to be adjusted of the vehicle-mounted LCD screen according to the real-time vehicle speed, driving time and driver age of the vehicle to be adjusted;

[0014] An adjustment ratio calculation module is used to calculate the brightness adjustment ratio according to the brightness value to be adjusted and the real-time brightness value;

[0015] The brightness adjustment module is used to determine the brightness adjustment value of the vehicle-mounted LCD screen according to the brightness adjustment ratio, and adjust the brightness of the vehicle-mounted LCD screen according to the brightness adjustment value.

[0016] In a third aspect, an embodiment of the present invention further provides a vehicle-mounted LCD screen brightness adjustment device, the vehicle-mounted LCD screen brightness adjustment device comprising:

[0017] at least one processor; and

[0018] a memory communicatively connected to at least one processor; wherein,

[0019] The memory stores a computer program that can be executed by at least one processor, and the computer program is executed by at least one processor so that the at least one processor can execute the vehicle-mounted LCD screen brightness adjustment method of any embodiment of the present invention.

[0020] According to another aspect of the present invention, a computer-readable storage medium is provided, which stores computer instructions, and the computer instructions are used to enable a processor to implement the method for adjusting the brightness of a vehicle-mounted LCD screen of any embodiment of the present invention when executed.

[0021] The technical solution of the embodiment of the present invention obtains the real-time speed, driving time, driver age of the vehicle to be adjusted and the real-time brightness value of the on-board LCD screen of the vehicle to be adjusted; calculates the brightness value to be adjusted of the on-board LCD screen according to the real-time speed, driving time and driver age of the vehicle to be adjusted; calculates the brightness adjustment ratio according to the brightness value to be adjusted and the real-time brightness value; determines the brightness adjustment value of the on-board LCD screen according to the brightness adjustment ratio, and adjusts the brightness of the on-board LCD screen according to the brightness adjustment value, adjusts the brightness of the on-board LCD screen through multi-dimensional data analysis, and improves the accuracy of brightness adjustment of the on-board LCD screen.

[0022] It should be understood that the contents described in this section are not intended to identify the key or important features of the embodiments of the present invention, nor are they intended to limit the scope of the present invention. Other features of the present invention will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 is a flow chart of a method for adjusting the brightness of a vehicle-mounted LCD screen provided according to Embodiment 1 of the present invention;

[0025] Figure 2 is a flow chart of a method for adjusting the brightness of a vehicle-mounted LCD screen provided according to Embodiment 2 of the present invention;

[0026] Figure 3 is a structural diagram of a vehicle-mounted LCD screen brightness adjustment device provided according to an embodiment of the present invention;

[0027] Figure 4 The present invention is a schematic diagram of a structure of a vehicle-mounted liquid crystal screen brightness adjustment device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0029] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0030] In the technical solution of the embodiment of the present invention, the acquisition, storage and application of real-time vehicle speed, etc. are in compliance with the provisions of relevant laws and regulations and do not violate public order and good morals.

[0031] Embodiment 1

[0032] Figure 1 This is a flow chart of a method for adjusting the brightness of a vehicle-mounted LCD screen provided in Embodiment 1 of the present invention. The embodiment of the present invention is applicable to the case of adjusting the brightness of a vehicle-mounted LCD screen, and the method can be performed by a vehicle-mounted LCD screen brightness adjustment device, which can be implemented in the form of hardware and / or software.

[0033] See also Figure 1 The vehicle-mounted LCD screen brightness adjustment method shown includes:

[0034] S101, obtaining the real-time speed, driving time, driver age, and real-time brightness value of the onboard LCD screen of the vehicle to be adjusted.

[0035] The vehicle to be adjusted may be a vehicle whose brightness of the vehicle-mounted LCD screen is to be adjusted. The real-time vehicle speed may be the speed of the vehicle to be adjusted when the brightness of the vehicle-mounted LCD screen is to be adjusted. The driving time may be the length of time the vehicle to be adjusted has been running. The driver age may be the age of the driver driving the vehicle to be adjusted. The real-time brightness value may be the brightness of the vehicle-mounted LCD screen when the brightness of the vehicle-mounted LCD screen of the vehicle to be adjusted is to be adjusted.

[0036] Specifically, there are many factors that affect the brightness of the vehicle-mounted LCD screen. The brightness of the vehicle-mounted LCD screen of the vehicle to be adjusted can be analyzed according to the degree of influence of each factor on the brightness of the vehicle-mounted LCD screen. For example, the factors that affect the brightness of the vehicle-mounted LCD screen can be the real-time speed, driving time and driver age of the vehicle to be adjusted. By analyzing the real-time speed, driving time and driver age of the vehicle to be adjusted, the real-time brightness value of the vehicle-mounted LCD screen of the vehicle to be adjusted is adjusted to a brightness value that meets the real-time driving state of the driver.

[0037] S102, calculating the brightness value to be adjusted of the vehicle-mounted LCD screen according to the real-time vehicle speed, driving time and driver age of the vehicle to be adjusted.

[0038] The brightness value to be adjusted may be the brightness value to which the brightness of the vehicle-mounted LCD screen of the vehicle to be adjusted is to be adjusted.

[0039] Specifically, when the vehicle to be adjusted is driving at high speed, the driver needs to concentrate and spend less time observing the display information on the on-board LCD screen. The brightness of the on-board LCD screen can be adjusted to a lower brightness to save energy. At the same time, the driver will experience visual fatigue during high-speed driving and will have a low degree of acceptance of strong light, so the brightness of the on-board LCD screen needs to be adjusted. When the driver drives for too long, it will cause visual fatigue, so the brightness of the on-board LCD screen needs to be adjusted. The older the driver is, the gradually worse his eyesight is, and the brightness of the on-board LCD screen also needs to be adjusted according to the driver's age. The brightness value to be adjusted for the on-board LCD screen can be calculated by analyzing the comprehensive influence of the real-time vehicle speed, driving time and driver age.

[0040] S103: Calculate a brightness adjustment ratio according to the brightness value to be adjusted and the real-time brightness value.

[0041] The brightness adjustment ratio may be a ratio of the brightness adjusted to the real-time brightness value to the real-time brightness value.

[0042] Specifically, the difference between the brightness value to be adjusted and the real-time brightness value is calculated to obtain the brightness value that needs to be adjusted for the real-time brightness value. The ratio of the difference to the real-time brightness value is calculated to obtain the brightness adjustment ratio, and the ratio of the brightness value to be adjusted to the real-time brightness value can be obtained, and the degree of adjustment of the real-time brightness value can be obtained.

[0043] S104: Determine a brightness adjustment value of the vehicle-mounted LCD screen according to the brightness adjustment ratio, and adjust the brightness of the vehicle-mounted LCD screen according to the brightness adjustment value.

[0044] The brightness adjustment value may be the brightness value actually adjusted to the vehicle-mounted LCD screen.

[0045] Specifically, the brightness adjustment value of the vehicle LCD screen is determined according to the brightness adjustment ratio. If the brightness adjustment ratio is too large, the value of the brightness adjustment ratio needs to be controlled to avoid exceeding the adjustable brightness range of the vehicle LCD screen or exceeding the brightness tolerance range of the human eye. If the brightness adjustment ratio is small, there is no need to modify the brightness adjustment ratio. The brightness adjustment value of the vehicle LCD screen is determined according to the original brightness adjustment ratio, and the brightness of the vehicle LCD screen is adjusted according to the brightness adjustment value.

[0046] The technical solution of the embodiment of the present invention obtains the real-time speed, driving time, driver age of the vehicle to be adjusted and the real-time brightness value of the on-board LCD screen of the vehicle to be adjusted; calculates the brightness value to be adjusted of the on-board LCD screen according to the real-time speed, driving time and driver age of the vehicle to be adjusted; calculates the brightness adjustment ratio according to the brightness value to be adjusted and the real-time brightness value; determines the brightness adjustment value of the on-board LCD screen according to the brightness adjustment ratio, and adjusts the brightness of the on-board LCD screen according to the brightness adjustment value, adjusts the brightness of the on-board LCD screen through multi-dimensional data analysis, and improves the accuracy of brightness adjustment of the on-board LCD screen.

[0047] Embodiment 2

[0048] Figure 2 This is a flow chart of a method for adjusting the brightness of a vehicle-mounted LCD screen provided in the second embodiment of the present invention. Based on the above embodiments, the embodiment of the present invention optimizes and improves the operation of adjusting the brightness of a vehicle-mounted LCD screen.

[0049] Further, “calculating the brightness value to be adjusted of the vehicle-mounted LCD screen according to the real-time speed, driving time and driver age of the vehicle to be adjusted” is refined into “obtaining the brightness conversion coefficient of the vehicle-mounted LCD screen; calculating the driving state compensation value of the vehicle-mounted LCD screen according to the real-time speed and driving time of the vehicle to be adjusted; calculating the driving age compensation value of the vehicle-mounted LCD screen according to the driver age of the vehicle to be adjusted; obtaining the ambient light data of the light sensor of the vehicle to be adjusted; obtaining the ambient brightness compensation value of the vehicle-mounted LCD screen according to the ambient light data of the light sensor; calculating the brightness value to be adjusted of the vehicle-mounted LCD screen according to the brightness conversion coefficient of the vehicle-mounted LCD screen, the driving state compensation value, the driving age compensation value and the ambient brightness compensation value” to improve the operation of adjusting the brightness of the vehicle-mounted LCD screen.

[0050] It should be noted that for the parts not described in detail in the embodiments of the present invention, reference may be made to the descriptions of other embodiments.

[0051] See also Figure 2 The vehicle-mounted LCD screen brightness adjustment method shown includes:

[0052] S201, obtaining the real-time speed, driving time, driver age, and real-time brightness value of the vehicle-mounted LCD screen of the vehicle to be adjusted.

[0053] S202: Obtain the brightness conversion coefficient of the vehicle-mounted LCD screen.

[0054] The brightness conversion coefficient may be a correspondence between a brightness value obtained by analyzing the real-time vehicle speed, driving time, and driver age and a brightness value to be adjusted.

[0055] Specifically, the brightness conversion coefficient of the vehicle-mounted LCD screen is obtained, and the brightness conversion coefficient can be obtained according to experiments or industry experience. The influencing factors of the brightness of each vehicle-mounted LCD screen are obtained, and the value of the brightness adjustment of the vehicle-mounted LCD screen is calculated according to each influencing factor. According to the multiplication of the brightness adjustment value of each vehicle-mounted LCD screen and the brightness conversion coefficient, the brightness adjustment value of each vehicle-mounted LCD screen is converted into the brightness value to be adjusted.

[0056] S203: Calculate a driving state compensation value of the vehicle-mounted LCD screen according to the real-time vehicle speed and driving time of the vehicle to be adjusted.

[0057] Among them, the driving state compensation value can be a value for adjusting the brightness according to the driver's driving fatigue state. Specifically, the driving state compensation value of the vehicle-mounted LCD screen is calculated according to the real-time speed and driving time of the vehicle to be adjusted. The higher the real-time speed of the vehicle to be adjusted, the darker the brightness of the vehicle-mounted LCD screen, and the longer the driving time of the vehicle to be adjusted, the darker the brightness of the vehicle-mounted LCD screen. Therefore, the driving state compensation value of the vehicle-mounted LCD screen needs to be calculated according to the real-time speed and driving time of the vehicle to be adjusted.

[0058] S204. Calculate a driving age compensation value of the vehicle-mounted LCD screen according to the age of the driver of the vehicle to be adjusted.

[0059] The driving age compensation value may be a value for adjusting the brightness according to the driving age of the driver. Specifically, the driving age compensation value of the vehicle-mounted LCD screen is calculated according to the age of the driver of the vehicle to be adjusted. The older the driver of the vehicle to be adjusted, the higher the brightness of the vehicle-mounted LCD screen needs to be.

[0060] S205: Obtain ambient light data from a light sensor of the vehicle to be adjusted.

[0061] The light sensor may be a device capable of detecting the intensity of ambient light. The ambient light data may be the intensity value of the ambient light in the vehicle received by the light sensor. Specifically, the ambient light data of the light sensor of the vehicle to be adjusted is obtained, and the acquisition method includes but is not limited to: a sequential search algorithm, a binary search algorithm, a block search algorithm, a tree table search algorithm or a hash search algorithm, etc., which is not limited in the embodiment of the present invention.

[0062] S206: Obtain an ambient brightness compensation value of the vehicle-mounted LCD screen according to the ambient light data of the light sensor.

[0063] The ambient brightness compensation value may be a value for adjusting the brightness of the vehicle-mounted LCD screen according to the ambient light intensity. Specifically, the ambient light is collected by a light sensor, and the ambient brightness compensation value of the vehicle-mounted LCD screen is obtained according to the ambient light data of the light sensor.

[0064] S207, calculating a brightness value to be adjusted of the vehicle-mounted LCD screen according to the brightness conversion coefficient of the vehicle-mounted LCD screen, the driving state compensation value, the driving age compensation value and the ambient brightness compensation value.

[0065] Specifically, the brightness influencing factors X of the vehicle-mounted LCD screen include a driving state compensation value Xs, a driving age compensation value Xi, and an ambient brightness compensation value Xb. The corresponding relationship between each brightness influencing factor of the vehicle-mounted LCD screen and the brightness value to be adjusted W is W=(Xs+Xi+Xb)A. A is the brightness conversion coefficient of the vehicle-mounted LCD screen. According to the brightness conversion coefficient of the vehicle-mounted LCD screen, the driving state compensation value, the driving age compensation value, and the ambient brightness compensation value, the brightness value to be adjusted of the vehicle-mounted LCD screen is calculated.

[0066] S208, calculating a brightness adjustment ratio according to the brightness value to be adjusted and the real-time brightness value;

[0067] S209: Determine a brightness adjustment value of the vehicle-mounted LCD screen according to the brightness adjustment ratio, and adjust the brightness of the vehicle-mounted LCD screen according to the brightness adjustment value.

[0068] The embodiment of the present invention obtains the brightness conversion coefficient of the vehicle-mounted liquid crystal screen; calculates the driving state compensation value of the vehicle-mounted liquid crystal screen according to the real-time vehicle speed and driving time of the vehicle to be adjusted; calculates the driving age compensation value of the vehicle-mounted liquid crystal screen according to the driver age of the vehicle to be adjusted; obtains the ambient light data of the light sensor of the vehicle to be adjusted; obtains the ambient brightness compensation value of the vehicle-mounted liquid crystal screen according to the ambient light data of the light sensor; calculates the brightness value to be adjusted of the vehicle-mounted liquid crystal screen according to the brightness conversion coefficient of the vehicle-mounted liquid crystal screen, the driving state compensation value, the driving age compensation value and the ambient brightness compensation value, analyzes the influence value of the brightness of the vehicle-mounted liquid crystal screen through multi-dimensional data, determines the brightness value to be adjusted of the vehicle-mounted liquid crystal screen, adjusts the brightness more accurately, is more in line with the driving state of the driver, and improves driving safety.

[0069] Optionally, the driving state compensation value of the vehicle-mounted LCD screen is calculated according to the real-time speed and driving time of the vehicle to be adjusted, including: obtaining the real-time brightness value, speed conversion coefficient, time conversion coefficient, speed setting constant and time setting constant of the vehicle-mounted LCD screen; calculating the initial state compensation value of the vehicle-mounted LCD screen according to the speed conversion coefficient, time conversion coefficient, speed setting constant, time setting constant, the real-time speed and driving time of the vehicle to be adjusted; calculating the initial state compensation ratio according to the real-time brightness value of the vehicle-mounted LCD screen and the initial state compensation value of the vehicle-mounted LCD screen; obtaining the preset state compensation ratio; comparing the initial state compensation ratio with the preset state compensation ratio to obtain a state comparison result; determining the driving state compensation value of the vehicle-mounted LCD screen according to the state comparison result.

[0070] Among them, the vehicle speed conversion coefficient may be the corresponding relationship data between the real-time vehicle speed of the vehicle to be adjusted and the driving state compensation value. The duration conversion coefficient may be the corresponding relationship data between the driving time of the vehicle to be adjusted and the driving state compensation value. The vehicle speed setting constant may be the preset vehicle speed of the vehicle to be adjusted. The duration setting constant may be the preset driving time of the vehicle to be adjusted. The initial state compensation value may be the compensation value of the brightness of the vehicle-mounted LCD screen directly calculated according to the vehicle speed conversion coefficient, the duration conversion coefficient, the vehicle speed setting constant, the duration setting constant, the real-time vehicle speed of the vehicle to be adjusted and the driving time. The initial state compensation ratio may be the ratio of the initial state compensation value to the real-time brightness value of the vehicle-mounted LCD screen of the vehicle to be adjusted. The preset state compensation ratio may be the ratio of the preset initial state compensation value to the real-time brightness value of the vehicle-mounted LCD screen of the vehicle to be adjusted. The state comparison result may be the result of comparing the initial state compensation ratio with the preset state compensation ratio. The driving state compensation value may be the actual compensation value for the vehicle-mounted LCD screen calculated according to the driving state.

[0071] Specifically, the real-time brightness value, vehicle speed conversion coefficient S1, duration conversion coefficient T1, vehicle speed setting constant Ns and duration setting constant Nt of the vehicle-mounted LCD screen are obtained. The initial state compensation value of the vehicle-mounted LCD screen is calculated based on the vehicle speed conversion coefficient, duration conversion coefficient, vehicle speed setting constant, duration setting constant, real-time vehicle speed and driving duration of the vehicle to be adjusted, and the calculation formula is: C = (S-Ns) / S1+(T-Nt) / T1, C is the initial state compensation value, T is the driving duration, and S is the real-time vehicle speed of the vehicle to be adjusted. The initial state compensation ratio is calculated based on the real-time brightness value of the vehicle-mounted LCD screen and the initial state compensation value of the vehicle-mounted LCD screen; the preset state compensation ratio is obtained, and for example, the preset state compensation ratio can be 5%; the initial state compensation ratio is compared with the preset state compensation ratio to obtain a state comparison result; and the driving state compensation value of the vehicle-mounted LCD screen is determined based on the state comparison result.

[0072] By obtaining the real-time brightness value, vehicle speed conversion coefficient, duration conversion coefficient, vehicle speed setting constant and duration setting constant of the vehicle-mounted LCD screen; calculating the initial state compensation value of the vehicle-mounted LCD screen according to the vehicle speed conversion coefficient, duration conversion coefficient, vehicle speed setting constant, duration setting constant, the real-time vehicle speed and driving duration of the vehicle to be adjusted; calculating the initial state compensation ratio according to the real-time brightness value of the vehicle-mounted LCD screen and the initial state compensation value of the vehicle-mounted LCD screen; obtaining the preset state compensation ratio; comparing the initial state compensation ratio with the preset state compensation ratio to obtain a state comparison result; determining the driving state compensation value of the vehicle-mounted LCD screen according to the state comparison result, and analyzing the driving state compensation value through multi-dimensional data, so as to make the driving state analysis more accurate and improve the accuracy of the brightness adjustment of the vehicle-mounted LCD screen.

[0073] Optionally, the driving state compensation value of the vehicle-mounted LCD screen is determined according to the state comparison result, including: if the state comparison result is that the initial state compensation ratio is greater than or equal to the preset state compensation ratio, then the driving state compensation value of the vehicle-mounted LCD screen is calculated according to the preset state compensation ratio; if the state comparison result is that the initial state compensation ratio is less than the preset state compensation ratio, then the driving state compensation value of the vehicle-mounted LCD screen is calculated according to the initial state compensation ratio.

[0074] Specifically, if the state comparison result is that the initial state compensation ratio is greater than or equal to the preset state compensation ratio, the driving state compensation value of the vehicle-mounted LCD screen is calculated according to the preset state compensation ratio to avoid the compensation ratio being too large, which leads to excessive brightness adjustment of the vehicle-mounted LCD screen, visual fatigue, and affects driving safety. If the state comparison result is that the initial state compensation ratio is less than the preset state compensation ratio, the driving state compensation value of the vehicle-mounted LCD screen is calculated according to the initial state compensation ratio, and the brightness of the vehicle-mounted LCD screen is adaptively adjusted to ensure that the driver observes the LCD screen more in line with his driving state.

[0075] If the state comparison result is that the initial state compensation ratio is greater than or equal to the preset state compensation ratio, the driving state compensation value of the vehicle LCD screen is calculated according to the preset state compensation ratio; if the state comparison result is that the initial state compensation ratio is less than the preset state compensation ratio, the driving state compensation value of the vehicle LCD screen is calculated according to the initial state compensation ratio. Different operations are performed for different state compensation ratios, which refines the brightness adjustment operation and improves the accuracy of brightness adjustment.

[0076] Optionally, the driving age compensation value of the vehicle-mounted LCD screen is calculated based on the driver age of the vehicle to be adjusted, including: obtaining driving seat sensor data; obtaining at least one facial image of the driver of the vehicle to be adjusted based on the driving seat sensor data; processing each driver's facial image to obtain the current driver age; obtaining an age compensation base, the average life span of the driver, and a life conversion coefficient; and calculating the driving age compensation value of the vehicle-mounted LCD screen based on the age compensation base, the average life span of the driver, the life conversion coefficient and the current driver age.

[0077] The driver seat sensor data may be data received by the sensor on whether there is a driver in the cab. The driver facial image may be a facial image of the driver in the cab of the vehicle to be adjusted. The current driver age may be the driver's age analyzed based on at least one driver facial image. The age compensation base may be a preset driver's age. The average driver life span may be the average life span of the drivers of the vehicle to be adjusted. The life conversion coefficient may be the corresponding relationship between the current driver age and the driving age compensation value.

[0078] Specifically, the driver's seat sensor data is obtained, and after the driver is detected in the seat, at least one driver's facial image of the vehicle to be adjusted is obtained. Each driver's facial image is processed to obtain the current driver's age L1. The age compensation base Lb, the average driver's life span Le and the life conversion coefficient T1 are obtained. The driving age compensation value calculation formula is: Xi = Lb-(Le-L1) / T1. According to the age compensation base, the average driver's life span, the life conversion coefficient and the current driver's age, the driving age compensation value of the vehicle-mounted LCD screen is calculated.

[0079] By acquiring driver seat sensor data; acquiring at least one driver's facial image of the vehicle to be adjusted based on the driver seat sensor data; processing each driver's facial image to obtain the current driver's age; acquiring an age compensation base, the driver's average life span and a life conversion coefficient; calculating a driving age compensation value of the vehicle-mounted LCD screen based on the age compensation base, the driver's average life span, the life conversion coefficient and the current driver's age; calculating the compensation value of the driving age for the real-time brightness of the vehicle-mounted LCD screen through multi-dimensional data, thereby improving the accuracy of brightness adjustment.

[0080] Optionally, the facial image of each driver is processed to obtain the current driver age, including: identifying each driver's facial image to obtain at least one driver's identified age; searching among the driver's identified ages to obtain a maximum age and a minimum age; averaging the driver's identified ages except the maximum age and the minimum age to obtain the current driver's age.

[0081] The driver identification age may be the age obtained by recognizing the driver's facial image. The maximum age may be the maximum driver identification age found among the driver identification ages. The minimum age may be the minimum driver identification age found among the driver identification ages. The current driver age may be the age of the current driver calculated based on the driver identification ages.

[0082] Specifically, after detecting that the driver is in the seat, an image is collected to obtain at least one driver's facial image. Each driver's facial image is recognized to obtain at least one driver's recognized age, and a search is performed among the driver's recognized ages to obtain a maximum age and a minimum age, and the maximum age and the minimum age are removed from the driver's recognized ages, and the remaining driver's recognized ages are averaged to obtain the current driver's age.

[0083] By identifying the facial image of each driver, at least one driver identification age is obtained; searching is performed among the driver identification ages to obtain the maximum age and the minimum age; the driver identification ages except the maximum age and the minimum age are averaged to obtain the current driver age, the maximum age and the minimum age are excluded, and the remaining driver identification ages are averaged, thereby reducing the randomness of age identification and improving the accuracy of age identification.

[0084] Optionally, the brightness adjustment value of the vehicle-mounted LCD screen is determined according to the brightness adjustment ratio, including: obtaining a preset brightness value and a preset brightness ratio threshold; comparing the brightness adjustment ratio with the preset brightness ratio threshold to obtain a brightness ratio comparison result; if the brightness ratio comparison result is that the brightness adjustment ratio is greater than or equal to the preset brightness ratio threshold, then the preset brightness value is used as the brightness adjustment value of the vehicle-mounted LCD screen; if the brightness ratio comparison result is that the brightness adjustment ratio is less than the preset brightness ratio threshold, then the brightness value to be adjusted is used as the brightness adjustment value of the vehicle-mounted LCD screen.

[0085] The preset brightness value may be a preset brightness adjustment value. The preset brightness ratio threshold may be a preset brightness adjustment ratio threshold. The brightness ratio comparison result may be a result of comparing the brightness adjustment ratio with the preset brightness ratio threshold.

[0086] Specifically, a preset brightness value and a preset brightness ratio threshold are obtained, and the acquisition method can be obtained through industry experience or pre-set according to demand. The brightness adjustment ratio is compared with the preset brightness ratio threshold to obtain a brightness ratio comparison result. If the brightness ratio comparison result is that the brightness adjustment ratio is greater than or equal to the preset brightness ratio threshold, it means that the brightness adjustment ratio is large and exceeds the preset adjustment range, and the preset brightness value is used as the brightness adjustment value of the vehicle-mounted LCD screen. If the brightness ratio comparison result is that the brightness adjustment ratio is less than the preset brightness ratio threshold, it means that the brightness adjustment ratio is small and the adjusted brightness ratio is within the adjustable brightness range, and the brightness value to be adjusted is used as the brightness adjustment value of the vehicle-mounted LCD screen.

[0087] By obtaining a preset brightness value and a preset brightness ratio threshold; comparing the brightness adjustment ratio with the preset brightness ratio threshold to obtain a brightness ratio comparison result; if the brightness ratio comparison result is that the brightness adjustment ratio is greater than or equal to the preset brightness ratio threshold, the preset brightness value is used as the brightness adjustment value of the vehicle-mounted LCD screen; if the brightness ratio comparison result is that the brightness adjustment ratio is less than the preset brightness ratio threshold, the brightness value to be adjusted is used as the brightness adjustment value of the vehicle-mounted LCD screen, and different operations are performed according to different comparison results, thereby improving the accuracy of brightness adjustment.

[0088] Optionally, the brightness of the vehicle-mounted LCD screen is adjusted according to the brightness adjustment value, including: obtaining at least one brightness ratio range and the adjustment step and step time corresponding to each brightness ratio range; comparing the brightness adjustment ratio with each brightness ratio range to obtain a target brightness range; determining a target adjustment step and a target step time according to the target brightness range; and adjusting the brightness of the vehicle-mounted LCD screen according to the target adjustment step and the target step time until the brightness of the vehicle-mounted LCD screen is adjusted to the brightness adjustment value.

[0089] The brightness ratio range may be a data range of a preset brightness adjustment ratio. The adjustment step may be a brightness value adjusted each time the brightness is adjusted. The step time may be an interval between two brightness adjustments. The target brightness range may be a brightness ratio range corresponding to the brightness adjustment ratio. The target adjustment step may be an adjustment step corresponding to the target brightness range. The target step time may be the time corresponding to the step length of the target brightness range.

[0090] Specifically, at least one brightness ratio range and the adjustment step and step time corresponding to each brightness ratio range are obtained, and the brightness ratio range and the adjustment step are in one-to-one correspondence. The brightness ratio range and the step time are in one-to-one correspondence. The brightness adjustment ratio is compared with each brightness ratio range to obtain the target brightness range and the target adjustment step and target step time corresponding to the target brightness range. The brightness of the vehicle-mounted LCD screen is adjusted according to the target adjustment step and the target step time until the brightness of the vehicle-mounted LCD screen is adjusted to the brightness adjustment value. If the brightness adjustment ratio is large, a certain brightness adjustment buffer time can be obtained by adjusting multiple times with a smaller ratio each time to prevent jumps. If the brightness adjustment ratio is small, the brightness of the vehicle-mounted LCD screen can be directly adjusted to the brightness adjustment value to improve the efficiency of brightness adjustment.

[0091] By obtaining at least one brightness ratio range and the adjustment step and step time corresponding to each brightness ratio range; comparing the brightness adjustment ratio with each brightness ratio range to obtain a target brightness range; determining a target adjustment step and a target step time according to the target brightness range; adjusting the brightness of the vehicle-mounted LCD screen according to the target adjustment step and the target step time until the brightness of the vehicle-mounted LCD screen is adjusted to the brightness adjustment value, different operations are performed for different brightness ratio ranges, the brightness adjustment steps are refined, and the accuracy of the brightness adjustment is improved.

[0092] Optionally, based on the driver's seat sensor data, at least one facial image of the driver of the vehicle to be adjusted is obtained, including: determining the image acquisition time based on the driver's seat sensor data; obtaining a preset number of acquisitions and an image acquisition interval; starting from the image acquisition time, acquiring at least one facial image of the driver of the vehicle to be adjusted according to the image acquisition interval and the preset number of acquisitions.

[0093] The image acquisition time may be the time when the driver image acquisition starts. The preset acquisition times may be the preset time for acquiring the driver's facial image. The image acquisition interval may be the interval between two acquired images. Specifically, the image acquisition time is determined according to the driver seat sensor data, the preset acquisition times and the image acquisition interval are obtained, and after the driver is detected in the seat, the image acquisition is started according to the preset acquisition times and the image acquisition interval to obtain at least one driver's facial image of the vehicle to be adjusted.

[0094] By determining the image acquisition time according to the driver's seat sensor data; obtaining the preset acquisition times and image acquisition interval time; starting from the image acquisition time, acquiring at least one driver's facial image of the vehicle to be adjusted according to the image acquisition interval time and the preset acquisition times, the image is adaptively acquired according to the demand without manual setting, thereby improving the efficiency of brightness adjustment.

[0095] Embodiment 3

[0096] Figure 3 This is a schematic diagram of a vehicle-mounted LCD screen brightness adjustment device provided in Embodiment 3 of the present invention. The embodiment of the present invention is applicable to vehicle-mounted LCD screen brightness adjustment, the device can execute a vehicle-mounted LCD screen brightness adjustment method, and the device can be implemented in the form of hardware and / or software.

[0097] See also Figure 3 The vehicle-mounted LCD screen brightness adjustment device shown includes: a data acquisition module 301, a brightness value calculation module 302, an adjustment ratio calculation module 303 and a brightness adjustment module 304, wherein:

[0098] The data acquisition module 301 is used to acquire the real-time speed, driving time, driver age and real-time brightness value of the vehicle to be adjusted.

[0099] The brightness value calculation module 302 is used to calculate the brightness value to be adjusted of the vehicle-mounted LCD screen according to the real-time vehicle speed, driving time and driver age of the vehicle to be adjusted;

[0100] The adjustment ratio calculation module 303 is used to calculate the brightness adjustment ratio according to the brightness value to be adjusted and the real-time brightness value;

[0101] The brightness adjustment module 304 is used to determine the brightness adjustment value of the vehicle-mounted LCD screen according to the brightness adjustment ratio, and adjust the brightness of the vehicle-mounted LCD screen according to the brightness adjustment value.

[0102] The technical solution of the embodiment of the present invention obtains the real-time speed, driving time, driver age of the vehicle to be adjusted and the real-time brightness value of the on-board LCD screen of the vehicle to be adjusted; calculates the brightness value to be adjusted of the on-board LCD screen according to the real-time speed, driving time and driver age of the vehicle to be adjusted; calculates the brightness adjustment ratio according to the brightness value to be adjusted and the real-time brightness value; determines the brightness adjustment value of the on-board LCD screen according to the brightness adjustment ratio, and adjusts the brightness of the on-board LCD screen according to the brightness adjustment value, adjusts the brightness of the on-board LCD screen through multi-dimensional data analysis, and improves the accuracy of brightness adjustment of the on-board LCD screen.

[0103] Optionally, the brightness value calculation module 302 includes:

[0104] A coefficient acquisition unit, used to acquire the brightness conversion coefficient of the vehicle-mounted LCD screen;

[0105] A state value calculation unit, used to calculate a driving state compensation value of the vehicle-mounted LCD screen according to the real-time vehicle speed and driving time of the vehicle to be adjusted;

[0106] An age value calculation unit, used to calculate a driving age compensation value of the vehicle-mounted LCD screen according to the age of the driver of the vehicle to be adjusted;

[0107] An ambient light acquisition unit, used to acquire ambient light data of a light sensor of a vehicle to be adjusted;

[0108] A brightness data calculation unit, used to obtain an ambient brightness compensation value of the vehicle-mounted LCD screen according to the ambient light data of the light sensor;

[0109] The to-be-adjusted value calculation unit is used to calculate the to-be-adjusted brightness value of the vehicle-mounted LCD screen according to the brightness conversion coefficient of the vehicle-mounted LCD screen, the driving state compensation value, the driving age compensation value and the ambient brightness compensation value.

[0110] Optionally, a state value calculation unit includes:

[0111] A status data acquisition subunit is used to obtain the real-time brightness value of the vehicle-mounted LCD screen, the vehicle speed conversion coefficient, the duration conversion coefficient, the vehicle speed setting constant and the duration setting constant;

[0112] The initial data acquisition subunit is used to calculate the initial state compensation value of the vehicle-mounted LCD screen according to the vehicle speed conversion coefficient, the time conversion coefficient, the vehicle speed setting constant, the time setting constant, the real-time vehicle speed and the driving time of the vehicle to be adjusted;

[0113] The initial ratio acquisition subunit is used to calculate the initial state compensation ratio according to the real-time brightness value of the vehicle-mounted LCD screen and the initial state compensation value of the vehicle-mounted LCD screen;

[0114] A preset ratio acquisition subunit, used to acquire a preset state compensation ratio;

[0115] A ratio comparison subunit, used to compare the initial state compensation ratio with the preset state compensation ratio to obtain a state comparison result;

[0116] The compensation value acquisition subunit is used to determine the driving state compensation value of the vehicle-mounted LCD screen according to the state comparison result.

[0117] Optionally, the compensation value acquisition subunit is specifically used to:

[0118] If the state comparison result is that the initial state compensation ratio is greater than or equal to the preset state compensation ratio, the driving state compensation value of the vehicle-mounted LCD screen is calculated according to the preset state compensation ratio;

[0119] If the state comparison result is that the initial state compensation ratio is less than the preset state compensation ratio, the driving state compensation value of the vehicle-mounted LCD screen is calculated according to the initial state compensation ratio.

[0120] Optional, age value calculation unit, including:

[0121] A sensor data acquisition subunit, used to acquire driver seat sensor data;

[0122] A facial image acquisition subunit, for acquiring at least one facial image of a driver of the vehicle to be adjusted based on the driver seat sensor data;

[0123] The current age acquisition subunit is used to process the facial image of each driver to obtain the current age of the driver;

[0124] An age data acquisition subunit is used to obtain the age compensation base, the average life expectancy of the driver and the life conversion coefficient;

[0125] The age compensation value acquisition subunit is used to calculate the driving age compensation value of the vehicle-mounted LCD screen according to the age compensation base, the average life expectancy of the driver, the life conversion coefficient and the current driver age.

[0126] Optional, current age acquisition subunit, specifically used for:

[0127] Recognize the facial image of each driver to obtain at least one driver identification age;

[0128] Search among the identified ages of each driver to obtain the maximum age and the minimum age;

[0129] The average of the identified ages of each driver except the maximum age and the minimum age is calculated to obtain the current driver age.

[0130] Optionally, the brightness adjustment module 304 is specifically used for:

[0131] Get the preset brightness value and preset brightness ratio threshold;

[0132] Compare the brightness adjustment ratio with a preset brightness ratio threshold to obtain a brightness ratio comparison result;

[0133] If the brightness ratio comparison result is that the brightness adjustment ratio is greater than or equal to the preset brightness ratio threshold, the preset brightness value is used as the brightness adjustment value of the vehicle-mounted LCD screen;

[0134] If the brightness ratio comparison result is that the brightness adjustment ratio is less than the preset brightness ratio threshold, the brightness value to be adjusted is used as the brightness adjustment value of the vehicle-mounted LCD screen.

[0135] Optionally, the brightness adjustment module 304 is specifically used for:

[0136] Obtain at least one brightness ratio range and an adjustment step length and a step time corresponding to each brightness ratio range;

[0137] Compare the brightness adjustment ratio with each brightness ratio range to obtain a target brightness range;

[0138] Determine the target adjustment step length and target step time according to the target brightness range;

[0139] The brightness of the vehicle-mounted LCD screen is adjusted according to the target adjustment step length and the target step time until the brightness of the vehicle-mounted LCD screen is adjusted to the brightness adjustment value.

[0140] Optionally, the facial image acquisition subunit is specifically used for:

[0141] Determine image acquisition time based on driver seat sensor data;

[0142] Get the preset acquisition times and image acquisition interval;

[0143] Starting from the image acquisition time, at least one driver's face image of the vehicle to be adjusted is acquired according to the image acquisition interval time and the preset acquisition times.

[0144] The vehicle-mounted LCD screen brightness adjustment device provided in the embodiment of the present invention can execute the vehicle-mounted LCD screen brightness adjustment method provided in any embodiment of the present invention, and has the corresponding functional modules and beneficial effects for executing the vehicle-mounted LCD screen brightness adjustment method.

[0145] Embodiment 4

[0146] Figure 4 A schematic structural diagram of a vehicle-mounted LCD screen brightness adjustment device 400 that can be used to implement an embodiment of the present invention is shown.

[0147] like Figure 4 As shown, the vehicle-mounted LCD screen brightness adjustment device 400 includes at least one processor 401, and a memory connected to the at least one processor 401, such as a read-only memory (ROM) 402, a random access memory (RAM) 403, etc., wherein the memory stores a computer program that can be executed by at least one processor, and the processor 401 can perform various appropriate actions and processes according to the computer program stored in the read-only memory (ROM) 402 or the computer program loaded from the storage unit 408 to the random access memory (RAM) 403. In RAM403, various programs and data required for the operation of the vehicle-mounted LCD screen brightness adjustment device 400 can also be stored. The processor 401, ROM402 and RAM403 are connected to each other through a bus 404. An input / output (I / O) interface 405 is also connected to the bus 404.

[0148] Multiple components in the vehicle-mounted LCD screen brightness adjustment device 400 are connected to the I / O interface 405, including: an input unit 406, such as a keyboard, a mouse, etc.; an output unit 407, such as various types of displays, speakers, etc.; a storage unit 408, such as a disk, an optical disk, etc.; and a communication unit 409, such as a network card, a modem, a wireless communication transceiver, etc. The communication unit 409 allows the vehicle-mounted LCD screen brightness adjustment device 400 to exchange information / data with other devices through a computer network such as the Internet and / or various telecommunication networks.

[0149] Processor 401 may be a variety of general and / or special processing components with processing and computing capabilities. Some examples of processor 401 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various dedicated artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, digital signal processors (DSPs), and any appropriate processors, controllers, microcontrollers, etc. Processor 501 executes the various methods and processes described above, such as a method for adjusting the brightness of a vehicle-mounted LCD screen.

[0150] In some embodiments, the vehicle-mounted LCD screen brightness adjustment method can be implemented as a computer program, which is tangibly contained in a computer-readable storage medium, such as a storage unit 408. In some embodiments, part or all of the computer program can be loaded and / or installed on the vehicle-mounted LCD screen brightness adjustment device 400 via ROM402 and / or communication unit 409. When the computer program is loaded into RAM403 and executed by processor 401, one or more steps of the vehicle-mounted LCD screen brightness adjustment method described above can be performed. Alternatively, in other embodiments, the processor 401 can be configured to execute the vehicle-mounted LCD screen brightness adjustment method in any other appropriate manner (for example, by means of firmware).

[0151] Various implementations of the systems and techniques described above herein can be implemented in digital electronic circuit systems, integrated circuit systems, field programmable gate arrays (FPGAs), application specific integrated circuits (ASICs), application specific standard products (ASSPs), systems on chips (SOCs), complex programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various implementations can include: being implemented in one or more computer programs that can be executed and / or interpreted on a programmable system including at least one programmable processor, which can be a special purpose or general purpose programmable processor that can receive data and instructions from a storage system, at least one input device, and at least one output device, and transmit data and instructions to the storage system, the at least one input device, and the at least one output device.

[0152] Computer programs for implementing the methods of the present invention may be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, so that when the computer program is executed by the processor, the functions / operations specified in the flow chart and / or block diagram are implemented. The computer program may be executed entirely on the machine, partially on the machine, partially on the machine and partially on a remote machine as a stand-alone software package, or entirely on a remote machine or server.

[0153] In the context of the present invention, a computer-readable storage medium may be a tangible medium that may contain or store a computer program for use by or in combination with an instruction execution system, device or equipment. A computer-readable storage medium may include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, devices or equipment, or any suitable combination of the foregoing. Alternatively, a computer-readable storage medium may be a machine-readable signal medium. A more specific example of a machine-readable storage medium may include an electrical connection based on one or more lines, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0154] In order to provide interaction with the user, the system and technology described herein can be implemented on a vehicle-mounted LCD screen brightness adjustment device, which has: a display device for displaying information to the user (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor); and a keyboard and a pointing device (e.g., a mouse or trackball), through which the user can provide input to the vehicle-mounted LCD screen brightness adjustment device. Other types of devices can also be used to provide interaction with the user; for example, the feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and the input from the user can be received in any form (including acoustic input, voice input, or tactile input).

[0155] The systems and techniques described herein may be implemented in a computing system that includes backend components (e.g., as a data server), or a computing system that includes middleware components (e.g., an application server), or a computing system that includes frontend components (e.g., a user computer with a graphical user interface or a web browser through which a user can interact with implementations of the systems and techniques described herein), or a computing system that includes any combination of such backend components, middleware components, or frontend components. The components of the system may be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: a local area network (LAN), a wide area network (WAN), a blockchain network, and the Internet.

[0156] A computing system may include a client and a server. The client and the server are generally remote from each other and usually interact through a communication network. The relationship between the client and the server is generated by computer programs running on the corresponding computers and having a client-server relationship with each other. The server may be a cloud server, also known as a cloud computing server or a cloud host, which is a host product in the cloud computing service system to solve the defects of difficult management and weak business scalability in traditional physical hosts and VPS (Virtual Private Server) services.

[0157] It should be understood that the various forms of processes shown above can be used to reorder, add or delete steps. For example, the steps described in the present invention can be executed in parallel, sequentially or in different orders, as long as the desired results of the technical solution of the present invention can be achieved, and this document does not limit this.

[0158] The above specific implementations do not constitute a limitation on the protection scope of the present invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for adjusting the brightness of a vehicle-mounted liquid crystal display, characterized in that: The method comprises: Obtaining the real-time speed, driving time, driver age, and brightness value of the onboard LCD screen of the vehicle to be adjusted; The brightness value to be adjusted of the vehicle-mounted LCD screen is calculated according to the real-time speed of the vehicle to be adjusted, the driving time and the age of the driver; Calculate the brightness adjustment ratio according to the brightness value to be adjusted and the real-time brightness value; The brightness adjustment value of the vehicle-mounted LCD screen is determined according to the brightness adjustment ratio, and the brightness of the vehicle-mounted LCD screen is adjusted according to the brightness adjustment value.

2. The method according to claim 1, characterized in that The step of calculating the brightness value to be adjusted of the vehicle-mounted LCD screen according to the real-time vehicle speed, driving time and driver age of the vehicle to be adjusted includes: Obtaining the brightness conversion coefficient of the vehicle-mounted LCD screen; Calculate the driving state compensation value of the vehicle-mounted LCD screen according to the real-time vehicle speed and driving time of the vehicle to be adjusted; Calculate the driving age compensation value of the vehicle-mounted LCD screen according to the driver age of the vehicle to be adjusted; Acquiring ambient light data of a light sensor of the vehicle to be adjusted; Obtaining an ambient brightness compensation value of the vehicle-mounted LCD screen according to the ambient light data of the light sensor; The brightness value to be adjusted of the vehicle-mounted LCD screen is calculated according to the brightness conversion coefficient of the vehicle-mounted LCD screen, the driving state compensation value, the driving age compensation value and the ambient brightness compensation value.

3. The method according to claim 2, characterized in that The driving state compensation value of the vehicle-mounted LCD screen is calculated according to the real-time vehicle speed and driving time of the vehicle to be adjusted, including: Obtaining the real-time brightness value, vehicle speed conversion coefficient, duration conversion coefficient, vehicle speed setting constant and duration setting constant of the vehicle-mounted LCD screen; The initial state compensation value of the vehicle-mounted LCD screen is calculated according to the vehicle speed conversion coefficient, the duration conversion coefficient, the vehicle speed setting constant, the duration setting constant, the real-time vehicle speed of the vehicle to be adjusted, and the driving duration; Calculating an initial state compensation ratio according to the real-time brightness value of the vehicle-mounted LCD screen and the initial state compensation value of the vehicle-mounted LCD screen; Get the preset state compensation ratio; Comparing the initial state compensation ratio with the preset state compensation ratio to obtain a state comparison result; A driving state compensation value of the vehicle-mounted LCD screen is determined according to the state comparison result.

4. The method according to claim 3, characterized in that The determining the driving state compensation value of the vehicle-mounted liquid crystal screen according to the state comparison result includes: If the state comparison result is that the initial state compensation ratio is greater than or equal to the preset state compensation ratio, then calculating the driving state compensation value of the vehicle-mounted LCD screen according to the preset state compensation ratio; If the state comparison result is that the initial state compensation ratio is less than the preset state compensation ratio, the driving state compensation value of the vehicle-mounted LCD screen is calculated according to the initial state compensation ratio.

5. The method according to claim 2, characterized in that: The step of calculating the driving age compensation value of the vehicle-mounted LCD screen according to the driver age of the vehicle to be adjusted includes: Get driver seat sensor data; acquiring at least one driver's facial image of the vehicle to be adjusted according to the driver's seat sensor data; Processing each of the driver's facial images to obtain the current driver's age; Obtain age compensation base, average driver life expectancy and life conversion coefficient; The driving age compensation value of the vehicle-mounted LCD screen is calculated based on the age compensation base, the average life expectancy of the driver, the life conversion coefficient and the current driver age.

6. The method according to claim 5, characterized in that The processing of each driver's facial image to obtain the current driver's age includes: Recognize the facial image of each driver to obtain at least one driver identification age; Searching among the identified ages of the drivers to obtain the maximum age and the minimum age; The average of the identified ages of the drivers except the maximum age and the minimum age is calculated to obtain the current driver age.

7. The method according to claim 1, characterized in that Determining the brightness adjustment value of the vehicle-mounted LCD screen according to the brightness adjustment ratio includes: Get the preset brightness value and preset brightness ratio threshold; Comparing the brightness adjustment ratio with the preset brightness ratio threshold to obtain a brightness ratio comparison result; If the brightness ratio comparison result is that the brightness adjustment ratio is greater than or equal to the preset brightness ratio threshold, the preset brightness value is used as the brightness adjustment value of the vehicle-mounted LCD screen; If the brightness ratio comparison result is that the brightness adjustment ratio is less than the preset brightness ratio threshold, the brightness value to be adjusted is used as the brightness adjustment value of the vehicle-mounted LCD screen.

8. The method according to claim 1, characterized in that The step of adjusting the brightness of the vehicle-mounted LCD screen according to the brightness adjustment value includes: Acquire at least one brightness ratio range and an adjustment step length and a step time corresponding to each brightness ratio range; Compare the brightness adjustment ratio with each of the brightness ratio ranges to obtain a target brightness range; Determine a target adjustment step length and a target step time according to the target brightness range; The brightness of the vehicle-mounted LCD screen is adjusted according to the target adjustment step length and the target step time until the brightness of the vehicle-mounted LCD screen is adjusted to the brightness adjustment value.

9. The method according to claim 5, characterized in that The step of acquiring at least one driver's facial image of the vehicle to be adjusted according to the driver's seat sensor data comprises: Determining an image acquisition time according to the driver seat sensor data; Get the preset acquisition times and image acquisition interval; Starting from the image acquisition time, at least one facial image of the driver of the vehicle to be adjusted is acquired according to the image acquisition interval and the preset acquisition times.

10. A vehicle-mounted LCD screen brightness adjustment device, characterized in that: The device comprises: A data acquisition module, used to acquire the real-time speed, driving time, driver age of the vehicle to be adjusted and the real-time brightness value of the on-board LCD screen of the vehicle to be adjusted; A brightness value calculation module, used to calculate the brightness value to be adjusted of the vehicle-mounted LCD screen according to the real-time vehicle speed, driving time and driver age of the vehicle to be adjusted; An adjustment ratio calculation module, used to calculate a brightness adjustment ratio according to the brightness value to be adjusted and the real-time brightness value; The brightness adjustment module is used to determine the brightness adjustment value of the vehicle-mounted LCD screen according to the brightness adjustment ratio, and adjust the brightness of the vehicle-mounted LCD screen according to the brightness adjustment value.

11. A vehicle-mounted LCD screen brightness adjustment device, characterized in that: The vehicle-mounted LCD screen brightness adjustment device comprises: at least one processor; and a memory communicatively connected to the at least one processor; wherein, The memory stores a computer program that can be executed by the at least one processor, and the computer program is executed by the at least one processor so that the at least one processor can execute the vehicle-mounted LCD screen brightness adjustment method described in any one of claims 1-9.

12. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer instructions, and the computer instructions are used to enable a processor to implement the vehicle-mounted LCD screen brightness adjustment method according to any one of claims 1 to 9 when executed.

Images