Adaptive Vehicle Lamp System for Glare Reduction
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Solution Overview
Problem
Conventional rear lamps on vehicles fail to adjust light quantity based on the position of following vehicles, leading to potential glare and difficulty in recognizing safe distances, especially when vehicles are close or far from each other, which can increase the risk of accidents.
Innovation Solution
A lamp system for mobile bodies that includes an optical module and a processor to receive relative position coordinate values from sensors, adjusting light quantity and pattern based on the position of following vehicles, reducing light intensity when they are close and increasing it when they are farther away to prevent glare and enhance visibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the rear lamp provides a constant light quantity, then the host vehicle can be clearly recognized, but the following vehicle experiences stress and glare when the two vehicles are close to each other
Solution Approach 1:
The rear lamp system dynamically adjusts its light quantity based on the distance to the following vehicle. When a following vehicle is detected within a predetermined range, the system reduces light quantity to prevent glare. When no following vehicle is present or the distance is large, the system increases light quantity to ensure the host vehicle is clearly recognizable. This dynamic adjustment resolves the contradiction between providing sufficient visibility and preventing harmful glare.
2Reliability
If the rear lamp provides a constant light quantity, then the host vehicle is visible, but it becomes difficult to recognize the host vehicle and secure a safe distance when the two vehicles are moved away from each other
Solution Approach 1:
The system changes the light quantity parameter based on the distance parameter to the following vehicle. When the distance is small, the system uses reduced light quantity to avoid glare. When the distance increases, the system increases light quantity to maintain visibility and provide distance information to the following vehicle. This parameter change strategy allows the system to adapt to different spatial conditions and resolve the contradiction between visibility and distance information provision.
3Device complexity
If the conventional rear lamp controls powers of left and right lamps to be the same, then the control is simple, but the power consumption is poor
Solution Approach 1:
The system applies different control strategies to different regions (left and right lamps) based on the position of the following vehicle. When a following vehicle is detected in a specific direction, the system adjusts the light quantity of the corresponding lamp differently from the other lamp. This localized control approach optimizes power consumption by providing targeted illumination only where needed, rather than uniformly controlling all lamps, thus resolving the contradiction between control simplicity and energy efficiency.
Data Source
AI summary
A lamp system of a mobile body is disclosed. The system includes an optical module positioned on the mobile body, and a processor to receive a relative position coordinate value of a following mobile body, control the optical module based on the received relative position coordinate value of the following mobile body, and control light quantity emitted by the optical module based on the received relative position coordinate value in response to the following mobile body being within a predetermined range area relative to the mobile body.