Display Brightness Control via Ambient Light Analysis
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Solution Overview
Problem
Outdoor electronic displays face challenges in maintaining visibility and energy efficiency due to varying ambient light conditions, as they need to compete with natural light and other sources while minimizing power consumption.
Innovation Solution
A system and method that control the brightness of electronic displays based on geographic location, time of day, and weather conditions, using a combination of GPS for location detection, cameras for image analysis, and processors to adjust brightness levels, allowing for incremental changes and optimization of power usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the display brightness is increased to maximize visibility under bright ambient conditions, then visibility is improved, but energy consumption increases
Solution Approach 1:
The display brightness is made dynamic and adjustable based on real-time ambient light conditions. The system continuously monitors ambient light levels and automatically adjusts the display brightness to an optimal level, ensuring visibility is maximized without unnecessarily consuming energy when high brightness is not required.
Solution Approach 2:
The system employs a feedback mechanism where ambient light sensors continuously measure the surrounding light conditions and provide this information to the control system. Based on this feedback, the display brightness is automatically adjusted to maintain optimal visibility while minimizing energy consumption. The system learns from environmental patterns and adapts its brightness strategy accordingly.
2Use of energy by moving object
If the display brightness is decreased to conserve energy under dim ambient conditions, then energy consumption is reduced, but visibility deteriorates
Solution Approach 1:
The display brightness is dynamically adjusted based on real-time ambient light measurements. During dim ambient conditions, the system increases brightness to maintain visibility, and during bright conditions, it reduces brightness to conserve energy. This dynamic adaptation ensures optimal balance between visibility and energy efficiency throughout different times of day and weather conditions.
Solution Approach 2:
The feedback loop continuously monitors ambient light levels and automatically adjusts display brightness to maintain adequate visibility. The system responds to changing environmental conditions in real-time, ensuring that the display remains visible during dim conditions without requiring maximum brightness, thus optimizing energy consumption based on actual viewing needs.
3Illumination intensity
If the display operates at high brightness levels continuously to ensure visibility, then visibility is maintained, but energy consumption increases
Solution Approach 1:
Instead of continuous high brightness operation, the system implements periodic adjustments to display brightness based on ambient light conditions. The ambient light sensor periodically measures surrounding light levels, and the control system periodically adjusts the display brightness accordingly. This periodic adaptation allows the display to operate at lower brightness levels during bright ambient conditions, significantly reducing energy consumption while maintaining visibility when needed.
Solution Approach 2:
The system changes the display brightness parameter dynamically based on ambient light conditions. During bright ambient conditions (such as daytime outdoor environments), the system reduces the display brightness parameter to minimize energy consumption. During dim ambient conditions (such as nighttime or overcast weather), the system increases the brightness parameter to maintain visibility. This parameter adaptation ensures optimal energy efficiency without compromising visibility.
Data Source
AI summary
A system and method for controlling the brightness level of an electronic display. An image capture device in proximity to the electronic display is used to capture images and/or video of the ambient environmental conditions local to the electronic display. The images and/or video is analyzed to determine the nature of the environmental conditions, and adjustments to the brightness level of the electronic display are made in consideration of said environmental conditions. In some embodiments, the images and/or video captured by the image capture device may be compared to stored images representative of different environmental conditions.