Dynamic High Beam Control Using Light Pixel Segmentation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
High beams from vehicles can cause discomfort to pedestrians due to their intense light, and existing technologies do not effectively mitigate this dazzling effect while maintaining visual clarity in low-ambient environments.
Innovation Solution
A dynamic high beam control system that uses sensors and processors to determine the direction and position of pedestrians and adjust the light pixels of high beam headlamps to prevent light from being projected onto their faces, employing external sensors, cameras, and an on-board computing platform to dynamically control the high beams.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If high beam intensity is increased to improve driver visibility in low-ambient light environments, then visual clarity for drivers is improved, but the dazzling effect on pedestrians increases causing discomfort
Solution Approach 1:
The headlamp is divided into multiple independently controllable light pixels arranged in a matrix pattern. Each light pixel can be individually adjusted in intensity and direction, allowing selective illumination of different road areas while avoiding pedestrian faces. This segmentation enables precise control over where high beam intensity is applied, maintaining driver visibility while reducing glare to pedestrians.
Solution Approach 2:
Different regions of the headlamp output different light intensities and directions based on local conditions. The system identifies pedestrian locations and adjusts the intensity and direction of light pixels in those specific regions to avoid illuminating faces, while maintaining high intensity in other regions where no pedestrians are present. This local quality adjustment resolves the contradiction by applying high beam intensity only where safe and necessary.
2Reliability
If high beam intensity is maintained at maximum to ensure driver safety in dark environments, then driver visibility is maximized, but pedestrian comfort deteriorates due to excessive light exposure
Solution Approach 1:
The system dynamically adjusts the intensity and direction of individual light pixels in real-time based on the detected positions and orientations of pedestrians. When pedestrians are detected facing the vehicle, the system dynamically modifies the light output to avoid their faces while maintaining overall high beam functionality. This dynamic adjustment ensures driver visibility reliability is maintained while preventing pedestrian discomfort.
Solution Approach 2:
The system uses sensors to continuously monitor the environment and detect pedestrian positions and face orientations. This feedback information is used to adjust the light pixel configuration, creating a closed-loop control system that maintains driver visibility while automatically reducing glare to pedestrians when they are detected. The feedback mechanism ensures both driver safety and pedestrian comfort are maintained simultaneously.
Data Source
AI summary
A dynamic high beam control system includes sensors, high beam headlamps including light pixels, and processors. The processors determine, via the sensors, a direction in which a person is facing. In response to determining that the person is facing the vehicle, the processors determine, via the sensors, a position of the person's face and adjust at least one of the light pixels projecting light to the person's face based on the position.