Brightness adjustment method and apparatus for light-emitting component of vehicle-mounted intelligent controller, and device
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Solution Overview
Problem
Existing brightness adjustment methods for vehicle light-emitting components only consider ambient light inside the vehicle, neglecting the influence of external light on human vision, leading to unsatisfactory adjustment effects.
Innovation Solution
Measure both external and internal ambient light values, calculate their difference, and adjust the light-emitting component's brightness based on a pre-set relationship table to achieve accurate adjustments, with the option to update the table based on user preferences through manual input.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If automatic brightness adjustment is implemented using only internal ambient light as reference, then manual operation is omitted and convenience is achieved, but the adjustment effect becomes unsatisfactory due to ignoring external light influence on human vision
Solution Approach 1:
The patent segments the ambient light measurement into two independent parts: internal ambient light sensing and external ambient light sensing. By using separate sensors for internal and external environments, the system can independently measure each light source and process them differently, ultimately combining the results for comprehensive brightness adjustment that accounts for both internal display needs and external visual conditions.
2Device complexity
If only internal ambient light brightness is measured as reference value, then the adjustment process is simple, but the adjustment effect is unsatisfactory because external ambient light influence on human vision is ignored
Solution Approach 1:
The patent applies the counterweight principle by introducing external ambient light measurement as a compensating factor that offsets the deficiency of internal-only measurement. The external light data acts as a counterbalancing element that corrects the incomplete picture provided by internal sensing alone, ensuring that the final brightness adjustment accounts for both internal display requirements and external visual conditions.
3Ease of manufacture
If the relationship table between brightness differences and reference values is fixed, then the adjustment strategy is simple to implement, but it cannot adapt to personalized user demands
Solution Approach 1:
The patent implements feedback by allowing user manual brightness adjustments to feed back into the relationship table. When users manually adjust the brightness, the system learns from these adjustments and updates the correspondence relationship between brightness differences and reference values. This feedback mechanism enables the system to adapt to individual user preferences and viewing conditions over time, transforming a static lookup table into a dynamic, personalized adjustment strategy.
Data Source
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AI summary
Provided is a brightness adjustment method, comprising the following steps: measuring a brightness value of external ambient light of a vehicle and a brightness value of internal ambient light of the vehicle to calculate a brightness difference between the internal and external ambient light; then obtaining a corresponding reference brightness value of the light-emitting component according to a relationship table between brightness differences and reference values; if an absolute value of the difference between the reference brightness value of the light-emitting component and the current brightness value of the light-emitting component is greater than or equal to a preset brightness difference, using the reference brightness value of the light-emitting component as the expected brightness of the light-emitting component; and adjusting the brightness of the light-emitting component of the vehicle-mounted intelligent controller to the expected brightness of the light-emitting component.