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CN115489311B - Vehicle-mounted screen brightness adjusting method and device - Google Patents

Vehicle-mounted screen brightness adjusting method and device Download PDF

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Publication number
CN115489311B
CN115489311B CN202211178408.9A CN202211178408A CN115489311B CN 115489311 B CN115489311 B CN 115489311B CN 202211178408 A CN202211178408 A CN 202211178408A CN 115489311 B CN115489311 B CN 115489311B
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screen
vehicle
brightness
upper limit
lower limit
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CN115489311A (en
Inventor
程旭光
李微萌
罗来兵
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Zhiji Automobile Technology Co Ltd
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Zhiji Automobile Technology Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
    • B60K35/20—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor
    • B60K35/29—Instruments characterised by the way in which information is handled, e.g. showing information on plural displays or prioritising information according to driving conditions
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/10—Intensity circuits
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K2360/00—Indexing scheme associated with groups B60K35/00 or B60K37/00 relating to details of instruments or dashboards
    • B60K2360/18—Information management
    • B60K2360/191—Highlight information

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Controls And Circuits For Display Device (AREA)
  • Instrument Panels (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)

Abstract

A vehicle-mounted screen brightness adjusting method and device are characterized in that whether the upper limit x of the screen brightness percentage or the lower limit y of the screen brightness percentage is larger than 1 is monitored, if the upper limit x of the screen brightness percentage or the lower limit y of the screen brightness percentage is larger than 1, the fact that the vehicle-mounted screen has reached the service life and screen accessories need to be replaced is indicated, prompt information for replacing screen components can be displayed on the vehicle-mounted screen, the brightness state of the vehicle-mounted display screen can be effectively monitored, the concept of the life cycle of the vehicle-mounted screen is provided, reliable data support is provided for vehicle maintenance and repair, the stability and high efficiency of the performance of the screen are guaranteed, and user experience is improved.

Description

Vehicle-mounted screen brightness adjusting method and device
Technical Field
The invention relates to a screen brightness adjusting method and equipment.
Background
In the electric vehicle era, particularly in the cabin field, a large screen or a plurality of screens are almost standard of electric vehicles, and medium-high-end fuel vehicles also adopt the plurality of screens or the large screen.
As the usage time increases, the brightness of the vehicle-mounted screen is continuously attenuated. The attenuation to on-vehicle screen luminance can lead to the display effect of screen to descend, can lead to simultaneously to the automatically regulated function inefficacy based on the sensor to lead to the user to need the manual screen luminance of adjusting constantly, use and experience poor, simultaneously, if the screen shows that luminance loss is serious can bring the problem that instrument visibility is poor, can lead to even vehicle driving danger in serious time.
Disclosure of Invention
Aiming at the problems existing in the prior art, the invention provides a vehicle-mounted screen brightness adjusting method and device.
In order to achieve the above purpose, the invention adopts the following technical scheme:
A vehicle-mounted screen brightness adjustment method, the method comprising:
Acquiring a default brightness upper limit L01 and a default brightness lower limit L02 of a vehicle-mounted screen, acquiring a current maximum brightness value Li of the vehicle-mounted screen, and calculating to obtain a corrected screen brightness percentage upper limit x=L01/Li and a corrected screen brightness percentage lower limit y=L02/Li;
Judging whether the upper limit x of the screen brightness percentage or the lower limit y of the screen brightness percentage is larger than 1,
And if the upper limit x of the screen brightness percentage or the lower limit y of the screen brightness percentage is larger than 1, displaying prompt information for replacing the screen assembly on the vehicle-mounted screen.
Further, in the above method, after determining whether the upper limit x of the screen brightness percentage or the lower limit y of the screen brightness percentage is greater than 1, the method further includes:
If the upper limit x or the lower limit y of the screen brightness percentage is smaller than or equal to 1, the upper limit of the brightness of the vehicle-mounted screen is adjusted to a default upper limit L01 of the brightness according to the upper limit x and the lower limit y of the screen brightness, and the lower limit of the brightness of the vehicle-mounted screen is adjusted to a default lower limit L02 of the brightness.
Further, in the above method, after adjusting the lower limit of the brightness of the vehicle-mounted screen to the default lower limit of the brightness L02, the method further includes:
Based on different driving speeds v, different weighting values a for adjusting the brightness of the vehicle-mounted screen are obtained;
judging whether the weighted value a is greater than 1 or not than the upper limit x of the screen brightness percentage or the weighted value a is greater than 1 or not,
If the weighted value a is greater than 1, determining a corrected weighted value a 'so that the corrected weighted value a' is equal to 1;
if the lower limit y of the screen brightness percentage is larger than 1, determining a corrected weighted value a ', so that the lower limit y of the screen brightness percentage of the corrected weighted value a' is equal to 1;
The method comprises the steps of obtaining the current speed of the vehicle, adjusting the upper limit of the actual brightness of the vehicle-mounted screen to be a ' L01 based on the corresponding relation between the corrected weighted value a ' and the current speed of the vehicle, and adjusting the lower limit of the brightness of the vehicle-mounted screen to be a ' L02.
Further, in the above method, step S1, obtaining the current maximum brightness value Li of the vehicle-mounted screen includes:
The timing is finished when the screen is turned off by timing when the screen is turned on, so that the current accumulated running time T of the vehicle-mounted screen is continuously updated;
Reading the current maximum brightness value of the vehicle-mounted screen through a brightness meter, and calculating the theoretical running time T1 of the vehicle-mounted screen by combining a screen brightness loss curve to obtain and store a time correction value delta T=T1-T;
When a certain time point needs to acquire the current maximum brightness value Li of the vehicle-mounted screen, calculating new theoretical running time T1 of the vehicle-mounted screen based on the current accumulated running time T and delta T of the vehicle-mounted screen at the time point;
Based on the new theoretical running time T1 of the vehicle-mounted screen and combining the screen brightness loss curve, the current maximum brightness value Li of the vehicle-mounted screen at the time point is obtained.
According to another aspect of the present invention, there is also provided a screen brightness adjusting apparatus including:
The computing device is used for acquiring a default brightness upper limit L01 and a default brightness lower limit L02 of the vehicle-mounted screen, acquiring a current maximum brightness value Li of the vehicle-mounted screen, and computing to obtain a corrected screen brightness percentage upper limit x=L01/Li and a corrected screen brightness percentage lower limit y=L02/Li;
The judging device is used for judging whether the upper limit x of the screen brightness percentage or the lower limit y of the screen brightness percentage is larger than 1, and if the upper limit x of the screen brightness percentage or the lower limit y of the screen brightness percentage is larger than 1, the prompt message for replacing the screen assembly is displayed on the vehicle-mounted screen.
Further, in the above device, the determining means is further configured to adjust the upper luminance limit of the vehicle-mounted screen to a default upper luminance limit L01 and adjust the lower luminance limit of the vehicle-mounted screen to a default lower luminance limit L02 according to the upper luminance limit x of the screen and the lower luminance limit y of the screen if the upper luminance limit x of the screen or the lower luminance limit y of the screen is less than or equal to 1.
Further, in the above device, the judging device is further configured to obtain different weighting values a for adjusting the brightness of the vehicle-mounted screen based on different driving speeds v; judging whether the upper limit x of the screen brightness percentage of the weighted value a or the lower limit y of the screen brightness percentage of the weighted value a is larger than 1, if the upper limit x of the screen brightness percentage of the weighted value a is larger than 1, determining a corrected weighted value a 'so that the upper limit x of the screen brightness percentage of the corrected weighted value a' is equal to 1; if the lower limit y of the screen brightness percentage is larger than 1, determining a corrected weighted value a ', so that the lower limit y of the screen brightness percentage of the corrected weighted value a' is equal to 1; the method comprises the steps of obtaining the current speed of the vehicle, adjusting the upper limit of the actual brightness of the vehicle-mounted screen to be a ' L01 based on the corresponding relation between the corrected weighted value a ' and the current speed of the vehicle, and adjusting the lower limit of the brightness of the vehicle-mounted screen to be a ' L02.
Further, in the above device, the calculating means is configured to continuously update the current accumulated running time T of the vehicle-mounted screen by counting when the screen is on and ending the counting when the screen is off; reading the current maximum brightness value of the vehicle-mounted screen through a brightness meter, and calculating the theoretical running time T1 of the vehicle-mounted screen by combining a screen brightness loss curve to obtain and store a time correction value delta T=T1-T; when a certain time point needs to acquire the current maximum brightness value Li of the vehicle-mounted screen, calculating new theoretical running time T1 of the vehicle-mounted screen based on the current accumulated running time T and delta T of the vehicle-mounted screen at the time point; based on the new theoretical running time T1 of the vehicle-mounted screen and combining the screen brightness loss curve, the current maximum brightness value Li of the vehicle-mounted screen at the time point is obtained.
According to another aspect of the present invention, there is also provided a computer-readable storage medium having stored thereon computer-executable instructions, wherein the computer-executable instructions, when executed by a processor, cause the processor to:
Acquiring a default brightness upper limit L01 and a default brightness lower limit L02 of a vehicle-mounted screen, acquiring a current maximum brightness value Li of the vehicle-mounted screen, and calculating to obtain a corrected screen brightness percentage upper limit x=L01/Li and a corrected screen brightness percentage lower limit y=L02/Li;
Judging whether the upper limit x of the screen brightness percentage or the lower limit y of the screen brightness percentage is larger than 1,
And if the upper limit x of the screen brightness percentage or the lower limit y of the screen brightness percentage is larger than 1, displaying prompt information for replacing the screen assembly on the vehicle-mounted screen.
According to another aspect of the present invention, there is also provided a calculator device, including:
A processor; and
A memory arranged to store computer executable instructions that, when executed, cause the processor to:
Acquiring a default brightness upper limit L01 and a default brightness lower limit L02 of a vehicle-mounted screen, acquiring a current maximum brightness value Li of the vehicle-mounted screen, and calculating to obtain a corrected screen brightness percentage upper limit x=L01/Li and a corrected screen brightness percentage lower limit y=L02/Li;
Judging whether the upper limit x of the screen brightness percentage or the lower limit y of the screen brightness percentage is larger than 1,
And if the upper limit x of the screen brightness percentage or the lower limit y of the screen brightness percentage is larger than 1, displaying prompt information for replacing the screen assembly on the vehicle-mounted screen.
In summary, according to the invention, whether the upper limit x of the screen brightness percentage or the lower limit y of the screen brightness percentage is larger than 1 is monitored, if the upper limit x of the screen brightness percentage or the lower limit y of the screen brightness percentage is larger than 1, the vehicle-mounted screen is proved to have reached the service life, and the screen accessories need to be replaced, so that prompt information for replacing the screen components can be displayed on the vehicle-mounted screen, the brightness state of the vehicle-mounted display screen can be effectively monitored, the concept of the life cycle of the vehicle-mounted screen is provided, reliable data support is provided for vehicle maintenance and repair, the stability and the high efficiency of the performance of the screen are ensured, and the user experience is improved.
In addition, if the upper limit x of the screen brightness percentage or the lower limit y of the screen brightness percentage is smaller than or equal to 1, the brightness of the vehicle-mounted display screen is attenuated, but the vehicle-mounted display screen is still in a continuously usable range.
In addition, the invention judges whether the upper limit x of the screen brightness percentage of the weighted value a or the lower limit y of the screen brightness percentage of the weighted value a is larger than 1, if the upper limit x of the screen brightness percentage of the weighted value a is larger than 1, the corrected weighted value a 'is determined, so that the upper limit x of the screen brightness percentage of the corrected weighted value a' is equal to 1; if the lower limit y of the screen brightness percentage is greater than 1, the corrected weighted value a ' is determined, so that the corrected weighted value a ' is equal to 1, and the upper limit of the actual brightness of the vehicle-mounted screen is adjusted to a ' L01 and the lower limit of the brightness of the vehicle-mounted screen is adjusted to a ' L02 by reducing the weighted value a to the corrected weighted value a ' under the condition that the brightness of the vehicle-mounted display screen is attenuated, thereby still basically meeting the different brightness adjustment requirements of the vehicle-mounted screen under different driving speeds v, carrying out full life cycle adjustment on the vehicle-mounted screen, and keeping the brightness of the vehicle-mounted screen in an optimal state all the time, providing the optimal display experience for users, monitoring the running state of the screen and serving as a reference for maintaining the vehicle.
Drawings
FIG. 1 is a flowchart of a method for adjusting the brightness of an on-vehicle screen according to an embodiment of the present invention;
FIG. 2 is a diagram of a weight lookup table according to an embodiment of the present invention;
FIG. 3 is a flowchart of a method for monitoring on-vehicle screen brightness according to an embodiment of the present invention;
Fig. 4 is a schematic diagram of a screen brightness loss curve according to an embodiment of the invention.
Detailed Description
The invention is described in further detail below with reference to the accompanying drawings.
In one exemplary configuration of the application, the terminal, the device of the service network, and the trusted party each include one or more processors (CPUs), input/output interfaces, network interfaces, and memory.
The memory may include volatile memory in a computer-readable medium, random Access Memory (RAM) and/or nonvolatile memory, such as Read Only Memory (ROM) or flash memory (flash RAM). Memory is an example of computer-readable media.
Computer readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of storage media for a computer include, but are not limited to, phase change memory (PRAM), static Random Access Memory (SRAM), dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), read Only Memory (ROM), electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape disk storage or other magnetic storage devices, or any other non-transmission medium, which can be used to store information that can be accessed by a computing device. Computer readable media, as defined herein, does not include non-transitory computer readable media (transmission media), such as modulated data signals and carrier waves.
As shown in fig. 1, the present invention provides a vehicle-mounted screen brightness adjustment method, which includes:
Step S1, obtaining a default brightness upper limit L01 and a default brightness lower limit L02 of a vehicle-mounted screen, obtaining a current maximum brightness value Li of the vehicle-mounted screen, and calculating to obtain a corrected screen brightness percentage upper limit x=L01/Li and a corrected screen brightness percentage lower limit y=L02/Li;
Here, the maximum brightness of the hardware design of the screen is 1200nit (L), and the default software setting brightness of the screen is l01=70% L, l02=10% L in consideration of driving safety. 10% is the lower limit of the screen brightness percentage, and 70% is the upper limit of the screen brightness percentage.
Step S2, judging whether the upper limit x of the screen brightness percentage or the lower limit y of the screen brightness percentage is larger than 1,
And S3, if the upper limit x of the screen brightness percentage or the lower limit y of the screen brightness percentage is larger than 1, displaying prompt information for replacing the screen assembly on the vehicle-mounted screen.
In the invention, whether the upper limit x of the screen brightness percentage or the lower limit y of the screen brightness percentage is larger than 1 is monitored, if the upper limit x of the screen brightness percentage or the lower limit y of the screen brightness percentage is larger than 1, the vehicle-mounted screen is proved to have reached the service life, and the screen accessories are required to be replaced, so that the prompt information for replacing the screen components can be displayed on the vehicle-mounted screen, the effective monitoring of the brightness state of the vehicle-mounted display screen can be realized, the concept of the life cycle of the vehicle-mounted screen is provided, reliable data support is provided for vehicle maintenance and repair, the stability and the high efficiency of the performance of the screen are ensured, and the user experience is improved.
As shown in fig. 1, in an embodiment of the method for adjusting the brightness of a vehicle-mounted screen of the present invention, step S2, after determining whether the upper limit x or the lower limit y of the brightness percentage of the screen is greater than 1, further includes:
And S4, if the upper limit x of the screen brightness percentage or the lower limit y of the screen brightness percentage is smaller than or equal to 1, adjusting the upper limit of the brightness of the vehicle-mounted screen to a default upper limit L01 of the brightness according to the upper limit x of the screen brightness percentage and the lower limit y of the screen brightness percentage, and adjusting the lower limit of the brightness of the vehicle-mounted screen to a default lower limit L02 of the brightness of the vehicle-mounted screen.
Here, the current maximum luminance value Li of the in-vehicle screen is determined, and the default luminance upper limit L01 and the default luminance lower limit L02 are also determined. When the current maximum luminance value Li of the vehicle-mounted screen decreases, in order to make the upper luminance limit of the vehicle-mounted screen conform to the default upper luminance limit L01 and the lower luminance limit of the vehicle-mounted screen conform to the default lower luminance limit L02, the upper screen luminance percentage limit x and the lower screen luminance percentage limit y may be increased.
If the upper limit x of the screen brightness percentage or the lower limit y of the screen brightness percentage is smaller than or equal to 1, the brightness of the vehicle-mounted display screen is attenuated, but the vehicle-mounted display screen is still in a continuously usable range, the upper limit of the brightness of the vehicle-mounted display screen can be adjusted to a default upper limit L01 of the brightness of the vehicle-mounted display screen and the lower limit of the brightness of the vehicle-mounted display screen can be adjusted to a default lower limit L02 of the brightness of the vehicle-mounted display screen based on the upper limit x of the screen brightness percentage and the lower limit y of the screen brightness percentage, the problem that the brightness of the existing vehicle-mounted display screen is continuously attenuated along with the increase of the using time can be solved, and the using experience of the vehicle-mounted display screen is improved. According to the embodiment, the full life cycle of the vehicle-mounted screen is adjusted, so that the brightness of the vehicle-mounted screen is always kept in the optimal state, the optimal display experience can be provided for a user, and the running state of the screen can be monitored and used as a reference for maintaining the vehicle.
As shown in fig. 1, in an embodiment of the method for adjusting the brightness of a vehicle-mounted screen according to the present invention, step S4, if the upper limit x of the brightness percentage of the screen or the lower limit y of the brightness percentage of the screen is less than or equal to 1, adjusts the upper limit of the brightness of the vehicle-mounted screen to a default upper limit L01 of the brightness according to the upper limit x of the brightness percentage of the screen and the lower limit y of the brightness percentage of the screen, and adjusts the lower limit of the brightness of the vehicle-mounted screen to a default lower limit L02 of the brightness, further comprises:
Step S5, obtaining different weighting values a for adjusting the brightness of the vehicle-mounted screen based on different driving speeds v;
Here, the user driving speed may be estimated by retrieving the screen accumulated running time (T) and the vehicle running mileage (S), v=s/T. As shown in fig. 2, different driving speeds v may be associated with different weighting values a and stored in the in-vehicle storage medium.
With the use of the vehicle, the screen use time T and mileage S are recorded, the theoretical speed is calculated through v=s/T, and the weighting value a can be determined according to the speed v through a lookup table as shown in fig. 2.
Step S6, judging whether the weighted value a is greater than 1 or not than the upper limit x of the screen brightness percentage or the weighted value a is greater than 1 or not,
Step S7, if the weighted value a is greater than 1, determining a corrected weighted value a 'so that the corrected weighted value a' is equal to 1;
Step S8, if the weighted value a is greater than 1, determining a corrected weighted value a 'so that the corrected weighted value a' is equal to 1;
Step S9, obtaining the current speed of the vehicle, adjusting the upper limit of the actual brightness of the vehicle-mounted screen to a ' ×l01 and the lower limit of the brightness of the vehicle-mounted screen to a ' ×l02 based on the corresponding relation between the corrected weighted value a ' and the current speed of the vehicle.
In this embodiment, whether the upper limit x of the screen brightness percentage or the lower limit y of the screen brightness percentage is greater than 1 is determined by determining the weighted value a, if the weighted value a is greater than 1, the corrected weighted value a 'is determined so that the corrected weighted value a' is equal to 1; if the lower limit y of the screen brightness percentage is greater than 1, the corrected weighted value a 'is determined so that the corrected weighted value a' is equal to 1, and by reducing the weighted value a to the corrected weighted value a ', when the brightness of the vehicle-mounted display screen has been attenuated, the upper limit of the actual brightness of the vehicle-mounted screen is adjusted to a' L01, and the lower limit of the brightness of the vehicle-mounted screen is adjusted to a 'L02, for example, different driving speeds v may be corresponding to different weighted values a and different driving speeds v may be corresponding to different corrected weighted values a' in fig. 2, so that the different brightness adjustment requirements of the vehicle-mounted screen at different driving speeds v may still be substantially satisfied. According to the embodiment, the full life cycle of the vehicle-mounted screen is adjusted, so that the brightness of the vehicle-mounted screen is always kept in the optimal state, the optimal display experience can be provided for a user, and the running state of the screen can be monitored and used as a reference for maintaining the vehicle.
In an embodiment of the present invention, step S1 of the method for adjusting brightness of a vehicle-mounted screen, obtaining a current maximum brightness value Li of the vehicle-mounted screen includes:
Step S11, timing is finished when the screen is turned off by timing when the screen is turned on, so that the current accumulated running time T of the vehicle-mounted screen is continuously updated;
the timing can be finished when the screen is turned off by timing when the screen is turned on, and the running time T of the vehicle-mounted screen is accumulated and stored in the vehicle storage medium;
Step S12, reading the current maximum brightness value of the vehicle-mounted screen through a brightness meter, and calculating the theoretical running time T1 of the vehicle-mounted screen by combining a screen brightness loss curve to obtain and store a time correction value delta T=T1-T;
Here, when the user maintains in the 4S store, the current maximum brightness value of the vehicle-mounted screen can be read through the brightness meter, and the theoretical running time T1 of the vehicle-mounted screen is calculated by combining the screen brightness loss curve (the relation between the brightness value and the running time), so as to obtain a time correction value:
delta T=T1-T, and the delta T is stored in a vehicle storage medium, and a new vehicle initializes the delta T when leaving the factory, and defaults to 0;
Specifically, when the vehicle is maintained in a 4S shop, the maximum brightness Lx of the screen is obtained by connecting with a brightness meter device, and is transmitted to the vehicle machine along with a vehicle-mounted debugging line, the theoretical running time T1 of the screen is obtained according to the brightness loss curve of the screen, and the time correction value Δt=t1-T is calculated, as shown in fig. 3.
Taking an LCD display as an example, a side-entry backlight is used, and the screen brightness loss curve is shown in fig. 4.
When the vehicle is maintained in a 4S shop, correcting the theoretical running time corresponding to the screen loss through professional brightness test equipment, so that the screen state is more accurate;
Step S13, when a certain time point needs to acquire the current maximum brightness value Li of the vehicle-mounted screen, calculating new theoretical running time T1 of the vehicle-mounted screen based on the current accumulated running time T and delta T of the vehicle-mounted screen at the time point;
Step S14, based on the new theoretical running time T1 of the vehicle-mounted screen, and combining the screen brightness loss curve, obtaining the current maximum brightness value Li of the vehicle-mounted screen at the time point.
Here, when the vehicle performs OTA upgrade, the maximum brightness Li of the screen is obtained according to the screen running time (t+Δt) and the screen brightness loss curve, and the corrected screen brightness percentage range x=l01/Li, y=l02/Li is calculated, and the OTA brightness correction flow is shown in fig. 1.
The new theoretical running time T1 of the vehicle-mounted screen can be obtained by calling the accumulated running time (T) of the screen and the correction value (delta T), the maximum brightness value of the vehicle-mounted screen at the current time point can be obtained by combining a screen brightness loss curve (the relation between the brightness value and the running time), the upper limit x or the lower limit y of the screen brightness percentage can be adjusted based on the maximum brightness value of the vehicle-mounted screen at the current time point, so that the upper limit L01 of the brightness of the vehicle-mounted screen is adjusted to the default upper limit L01 of the brightness, the lower limit L02 of the brightness of the vehicle-mounted screen is adjusted to the default lower limit L02 of the brightness of the vehicle-mounted screen, and the upper limit L01 and the lower limit L02 of the brightness of the screen can be stored in an in-vehicle memory storage medium.
In practical use, the upper limit of the brightness of the vehicle-mounted screen is a x L01, and the lower limit is a x L02.
The embodiment is used as the data of the screen brightness loss by adding the monitoring and the recording to the screen running time; determining the driving preference of a user through the association of the accumulated driving mileage of the vehicle and the accumulated running time of the screen, and setting the brightness of the screen; in addition, through the relation between the brightness loss of the backlight lamp beads or the brightness loss of the OLED material and the running time of the screen, the brightness of the screen can be corrected when online upgrade (OTA, over-the-Air Technology) is carried out each time;
according to another aspect of the present invention, there is also provided a screen brightness adjusting apparatus including:
The computing device is used for acquiring a default brightness upper limit L01 and a default brightness lower limit L02 of the vehicle-mounted screen, acquiring a current maximum brightness value Li of the vehicle-mounted screen, and computing to obtain a corrected screen brightness percentage upper limit x=L01/Li and a corrected screen brightness percentage lower limit y=L02/Li;
The judging device is used for judging whether the upper limit x of the screen brightness percentage or the lower limit y of the screen brightness percentage is larger than 1, and if the upper limit x of the screen brightness percentage or the lower limit y of the screen brightness percentage is larger than 1, the prompt message for replacing the screen assembly is displayed on the vehicle-mounted screen.
Further, in the above device, the determining means is further configured to adjust the upper luminance limit of the vehicle-mounted screen to a default upper luminance limit L01 and adjust the lower luminance limit of the vehicle-mounted screen to a default lower luminance limit L02 according to the upper luminance limit x of the screen and the lower luminance limit y of the screen if the upper luminance limit x of the screen or the lower luminance limit y of the screen is less than or equal to 1.
Further, in the above device, the judging device is further configured to obtain different weighting values a for adjusting the brightness of the vehicle-mounted screen based on different driving speeds v; judging whether the upper limit x of the screen brightness percentage of the weighted value a or the lower limit y of the screen brightness percentage of the weighted value a is larger than 1, if the upper limit x of the screen brightness percentage of the weighted value a is larger than 1, determining a corrected weighted value a 'so that the upper limit x of the screen brightness percentage of the corrected weighted value a' is equal to 1; if the lower limit y of the screen brightness percentage is larger than 1, determining a corrected weighted value a ', so that the lower limit y of the screen brightness percentage of the corrected weighted value a' is equal to 1; the method comprises the steps of obtaining the current speed of the vehicle, adjusting the upper limit of the actual brightness of the vehicle-mounted screen to be a ' L01 based on the corresponding relation between the corrected weighted value a ' and the current speed of the vehicle, and adjusting the lower limit of the brightness of the vehicle-mounted screen to be a ' L02.
Further, in the above device, the calculating means is configured to continuously update the current accumulated running time T of the vehicle-mounted screen by counting when the screen is on and ending the counting when the screen is off; reading the current maximum brightness value of the vehicle-mounted screen through a brightness meter, and calculating the theoretical running time T1 of the vehicle-mounted screen by combining a screen brightness loss curve to obtain and store a time correction value delta T=T1-T; when a certain time point needs to acquire the current maximum brightness value Li of the vehicle-mounted screen, calculating new theoretical running time T1 of the vehicle-mounted screen based on the current accumulated running time T and delta T of the vehicle-mounted screen at the time point; based on the new theoretical running time T1 of the vehicle-mounted screen and combining the screen brightness loss curve, the current maximum brightness value Li of the vehicle-mounted screen at the time point is obtained.
According to another aspect of the present invention, there is also provided a computer-readable storage medium having stored thereon computer-executable instructions, wherein the computer-executable instructions, when executed by a processor, cause the processor to:
Acquiring a default brightness upper limit L01 and a default brightness lower limit L02 of a vehicle-mounted screen, acquiring a current maximum brightness value Li of the vehicle-mounted screen, and calculating to obtain a corrected screen brightness percentage upper limit x=L01/Li and a corrected screen brightness percentage lower limit y=L02/Li;
Judging whether the upper limit x of the screen brightness percentage or the lower limit y of the screen brightness percentage is larger than 1,
And if the upper limit x of the screen brightness percentage or the lower limit y of the screen brightness percentage is larger than 1, displaying prompt information for replacing the screen assembly on the vehicle-mounted screen.
According to another aspect of the present invention, there is also provided a calculator device, including:
A processor; and
A memory arranged to store computer executable instructions that, when executed, cause the processor to:
Acquiring a default brightness upper limit L01 and a default brightness lower limit L02 of a vehicle-mounted screen, acquiring a current maximum brightness value Li of the vehicle-mounted screen, and calculating to obtain a corrected screen brightness percentage upper limit x=L01/Li and a corrected screen brightness percentage lower limit y=L02/Li;
Judging whether the upper limit x of the screen brightness percentage or the lower limit y of the screen brightness percentage is larger than 1,
And if the upper limit x of the screen brightness percentage or the lower limit y of the screen brightness percentage is larger than 1, displaying prompt information for replacing the screen assembly on the vehicle-mounted screen.
The method of the invention may be integrated in a specific control device.
The control device of the present invention may be a computer program product, wherein the computer program product, when run on a computer, causes the computer to perform some or all of the steps of the method as in the method embodiments above.
The control device of the present invention may be an application publishing platform for publishing a computer program product, wherein the computer program product when run on a computer causes the computer to perform some or all of the steps of the method as in the method embodiments above.
In various embodiments of the present invention, it should be understood that the sequence numbers of the foregoing processes do not imply that the execution sequences of the processes should be determined by the functions and internal logic of the processes, and should not be construed as limiting the implementation of the embodiments of the present invention.
The various systems, units of the invention, if implemented in the form of software functional units, may be stored in a computer-accessible memory. With such understanding, some or all of the aspects of the present invention may be embodied in the form of a software product stored in a memory, comprising a number of requests to cause one or more computer devices (e.g., personal computers, servers or network devices, etc., which may be processors in the computer devices in particular) to perform some or all of the steps of the methods described above for various embodiments of the present invention.
Those skilled in the art will appreciate that all or part of the steps of the various embodiments of the invention recited herein can be implemented by computer programs, which can be stored centrally or in a distributed fashion in one or more computer devices, such as in a readable storage medium. The computer device includes Read-Only Memory (ROM), random-access Memory (Random Access Memory, RAM), programmable Read-Only Memory (Programmable Read-Only Memory, PROM), erasable programmable Read-Only Memory (Erasable Programmable Read Only Memory, EPROM), one-time programmable Read-Only Memory (OTPROM), electrically erasable programmable Read-Only Memory (EEPROM), compact disc Read-Only Memory (Compact Disc Read-Only Memory, CD-ROM) or other optical disk Memory, magnetic disk Memory, tape Memory, or any other medium capable of being used for carrying or storing data.
It will be appreciated by persons skilled in the art that the above embodiments are provided for illustration only and not for limitation of the invention, and that variations and modifications of the above described embodiments are intended to fall within the scope of the claims of the invention as long as they fall within the true spirit of the invention.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present application without departing from the spirit or scope of the application. Thus, it is intended that the present application also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
It should be noted that the present invention may be implemented in software and/or a combination of software and hardware, e.g., using Application Specific Integrated Circuits (ASIC), a general purpose computer or any other similar hardware device. In one embodiment, the software program of the present invention may be executed by a processor to perform the steps or functions described above. Likewise, the software programs of the present invention (including associated data structures) may be stored on a computer readable recording medium, such as RAM memory, magnetic or optical drive or diskette and the like. In addition, some steps or functions of the present invention may be implemented in hardware, for example, as circuitry that cooperates with the processor to perform various steps or functions.
Furthermore, portions of the present invention may be implemented as a computer program product, such as computer program instructions, which when executed by a computer, may invoke or provide methods and/or techniques in accordance with the present invention by way of operation of the computer. Program instructions for invoking the inventive methods may be stored in fixed or removable recording media and/or transmitted via a data stream in a broadcast or other signal bearing medium and/or stored within a working memory of a computer device operating according to the program instructions. An embodiment according to the invention comprises an apparatus comprising a memory for storing computer program instructions and a processor for executing the program instructions, wherein the computer program instructions, when executed by the processor, trigger the apparatus to operate a method and/or a solution according to the embodiments of the invention as described above.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned. Furthermore, it is evident that the word "comprising" does not exclude other elements or steps, and that the singular does not exclude a plurality. A plurality of units or means recited in the apparatus claims can also be implemented by means of one unit or means in software or hardware. The terms first, second, etc. are used to denote a name, but not any particular order.

Claims (6)

1. A vehicle-mounted screen brightness adjustment method, characterized by comprising:
Acquiring a default brightness upper limit L01 and a default brightness lower limit L02 of a vehicle-mounted screen, acquiring a current maximum brightness value Li of the vehicle-mounted screen, and calculating to obtain a corrected screen brightness percentage upper limit x=L01/Li and a corrected screen brightness percentage lower limit y=L02/Li;
Judging whether the upper limit x of the screen brightness percentage or the lower limit y of the screen brightness percentage is larger than 1,
If the upper limit x or the lower limit y of the screen brightness percentage is smaller than or equal to 1, adjusting the upper limit of the brightness of the vehicle-mounted screen to a default upper limit L01 and the lower limit of the brightness of the vehicle-mounted screen to a default lower limit L02 according to the upper limit x and the lower limit y of the screen brightness percentage; based on different driving speeds v, different weighting values a for adjusting the brightness of the vehicle-mounted screen are obtained; judging whether the upper limit x of the screen brightness percentage of the weighted value a or the lower limit y of the screen brightness percentage of the weighted value a is larger than 1, if the upper limit x of the screen brightness percentage of the weighted value a is larger than 1, determining a corrected weighted value a 'so that the upper limit x of the screen brightness percentage of the corrected weighted value a' is equal to 1; if the lower limit y of the screen brightness percentage is larger than 1, determining a corrected weighted value a ', so that the lower limit y of the screen brightness percentage of the corrected weighted value a' is equal to 1; acquiring the current speed of the vehicle, adjusting the upper limit of the actual brightness of the vehicle-mounted screen to be a ' L01 and adjusting the lower limit of the brightness of the vehicle-mounted screen to be a ' L02 based on the corresponding relation between the corrected weighted value a ' and the current speed of the vehicle;
and if the upper limit x of the screen brightness percentage or the lower limit y of the screen brightness percentage is larger than 1, displaying prompt information for replacing the screen assembly on the vehicle-mounted screen.
2. The method for adjusting the brightness of the vehicle-mounted screen according to claim 1, wherein step S1 of obtaining the current maximum brightness value Li of the vehicle-mounted screen includes:
The timing is finished when the screen is turned off by timing when the screen is turned on, so that the current accumulated running time T of the vehicle-mounted screen is continuously updated;
Reading the current maximum brightness value of the vehicle-mounted screen through a brightness meter, and calculating the theoretical running time T1 of the vehicle-mounted screen by combining a screen brightness loss curve to obtain and store a time correction value delta T=T1-T;
When a certain time point needs to acquire the current maximum brightness value Li of the vehicle-mounted screen, calculating new theoretical running time T1 of the vehicle-mounted screen based on the current accumulated running time T and delta T of the vehicle-mounted screen at the time point;
Based on the new theoretical running time T1 of the vehicle-mounted screen and combining the screen brightness loss curve, the current maximum brightness value Li of the vehicle-mounted screen at the time point is obtained.
3. An in-vehicle screen brightness adjustment apparatus, characterized by comprising:
The computing device is used for acquiring a default brightness upper limit L01 and a default brightness lower limit L02 of the vehicle-mounted screen, acquiring a current maximum brightness value Li of the vehicle-mounted screen, and computing to obtain a corrected screen brightness percentage upper limit x=L01/Li and a corrected screen brightness percentage lower limit y=L02/Li;
A judging device, which is used for judging whether the upper limit x of the screen brightness percentage or the lower limit y of the screen brightness percentage is larger than 1,
If the upper limit x or the lower limit y of the screen brightness percentage is smaller than or equal to 1, adjusting the upper limit of the brightness of the vehicle-mounted screen to a default upper limit L01 and the lower limit of the brightness of the vehicle-mounted screen to a default lower limit L02 according to the upper limit x and the lower limit y of the screen brightness percentage; based on different driving speeds v, different weighting values a for adjusting the brightness of the vehicle-mounted screen are obtained; judging whether the upper limit x of the screen brightness percentage of the weighted value a or the lower limit y of the screen brightness percentage of the weighted value a is larger than 1, if the upper limit x of the screen brightness percentage of the weighted value a is larger than 1, determining a corrected weighted value a 'so that the upper limit x of the screen brightness percentage of the corrected weighted value a' is equal to 1; if the lower limit y of the screen brightness percentage is larger than 1, determining a corrected weighted value a ', so that the lower limit y of the screen brightness percentage of the corrected weighted value a' is equal to 1; acquiring the current speed of the vehicle, adjusting the upper limit of the actual brightness of the vehicle-mounted screen to be a ' L01 and adjusting the lower limit of the brightness of the vehicle-mounted screen to be a ' L02 based on the corresponding relation between the corrected weighted value a ' and the current speed of the vehicle;
and if the upper limit x of the screen brightness percentage or the lower limit y of the screen brightness percentage is larger than 1, displaying prompt information for replacing the screen assembly on the vehicle-mounted screen.
4. The on-vehicle screen brightness adjustment apparatus according to claim 3, wherein the calculating means is configured to end the timer at the time of screen extinction by performing the timer at the time of screen lighting to continuously update the current accumulated running time T of the on-vehicle screen; reading the current maximum brightness value of the vehicle-mounted screen through a brightness meter, and calculating the theoretical running time T1 of the vehicle-mounted screen by combining a screen brightness loss curve to obtain and store a time correction value delta T=T1-T; when a certain time point needs to acquire the current maximum brightness value Li of the vehicle-mounted screen, calculating new theoretical running time T1 of the vehicle-mounted screen based on the current accumulated running time T and delta T of the vehicle-mounted screen at the time point; based on the new theoretical running time T1 of the vehicle-mounted screen and combining the screen brightness loss curve, the current maximum brightness value Li of the vehicle-mounted screen at the time point is obtained.
5. A computer-readable storage medium having stored thereon computer-executable instructions, wherein the computer-executable instructions, when executed by a processor, cause the processor to:
Acquiring a default brightness upper limit L01 and a default brightness lower limit L02 of a vehicle-mounted screen, acquiring a current maximum brightness value Li of the vehicle-mounted screen, and calculating to obtain a corrected screen brightness percentage upper limit x=L01/Li and a corrected screen brightness percentage lower limit y=L02/Li;
Judging whether the upper limit x of the screen brightness percentage or the lower limit y of the screen brightness percentage is larger than 1,
If the upper limit x or the lower limit y of the screen brightness percentage is smaller than or equal to 1, adjusting the upper limit of the brightness of the vehicle-mounted screen to a default upper limit L01 and the lower limit of the brightness of the vehicle-mounted screen to a default lower limit L02 according to the upper limit x and the lower limit y of the screen brightness percentage; based on different driving speeds v, different weighting values a for adjusting the brightness of the vehicle-mounted screen are obtained; judging whether the upper limit x of the screen brightness percentage of the weighted value a or the lower limit y of the screen brightness percentage of the weighted value a is larger than 1, if the upper limit x of the screen brightness percentage of the weighted value a is larger than 1, determining a corrected weighted value a 'so that the upper limit x of the screen brightness percentage of the corrected weighted value a' is equal to 1; if the lower limit y of the screen brightness percentage is larger than 1, determining a corrected weighted value a ', so that the lower limit y of the screen brightness percentage of the corrected weighted value a' is equal to 1; acquiring the current speed of the vehicle, adjusting the upper limit of the actual brightness of the vehicle-mounted screen to be a ' L01 and adjusting the lower limit of the brightness of the vehicle-mounted screen to be a ' L02 based on the corresponding relation between the corrected weighted value a ' and the current speed of the vehicle;
and if the upper limit x of the screen brightness percentage or the lower limit y of the screen brightness percentage is larger than 1, displaying prompt information for replacing the screen assembly on the vehicle-mounted screen.
6. A calculator device, comprising:
A processor; and
A memory arranged to store computer executable instructions that, when executed, cause the processor to:
Acquiring a default brightness upper limit L01 and a default brightness lower limit L02 of a vehicle-mounted screen, acquiring a current maximum brightness value Li of the vehicle-mounted screen, and calculating to obtain a corrected screen brightness percentage upper limit x=L01/Li and a corrected screen brightness percentage lower limit y=L02/Li;
Judging whether the upper limit x of the screen brightness percentage or the lower limit y of the screen brightness percentage is larger than 1,
If the upper limit x or the lower limit y of the screen brightness percentage is smaller than or equal to 1, adjusting the upper limit of the brightness of the vehicle-mounted screen to a default upper limit L01 and the lower limit of the brightness of the vehicle-mounted screen to a default lower limit L02 according to the upper limit x and the lower limit y of the screen brightness percentage; based on different driving speeds v, different weighting values a for adjusting the brightness of the vehicle-mounted screen are obtained; judging whether the upper limit x of the screen brightness percentage of the weighted value a or the lower limit y of the screen brightness percentage of the weighted value a is larger than 1, if the upper limit x of the screen brightness percentage of the weighted value a is larger than 1, determining a corrected weighted value a 'so that the upper limit x of the screen brightness percentage of the corrected weighted value a' is equal to 1; if the lower limit y of the screen brightness percentage is larger than 1, determining a corrected weighted value a ', so that the lower limit y of the screen brightness percentage of the corrected weighted value a' is equal to 1; acquiring the current speed of the vehicle, adjusting the upper limit of the actual brightness of the vehicle-mounted screen to be a ' L01 and adjusting the lower limit of the brightness of the vehicle-mounted screen to be a ' L02 based on the corresponding relation between the corrected weighted value a ' and the current speed of the vehicle;
and if the upper limit x of the screen brightness percentage or the lower limit y of the screen brightness percentage is larger than 1, displaying prompt information for replacing the screen assembly on the vehicle-mounted screen.
CN202211178408.9A 2022-09-27 2022-09-27 Vehicle-mounted screen brightness adjusting method and device Active CN115489311B (en)

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CN114677989B (en) * 2022-03-29 2023-12-12 智己汽车科技有限公司 Screen brightness adjusting method and device
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