Road Surface Path Lighting With Obstacle-Adaptive Projection
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Solution Overview
Problem
Existing road surface illuminating technologies fail to accurately communicate the vehicle's intended path to drivers and other vehicles due to the absence of obstacle detection, leading to potential collisions, especially when obstacles are present.
Innovation Solution
A road surface illuminating device equipped with an environmental sensor and an illumination controller that adjusts the patterned light to indicate the vehicle's passable path, taking into account obstacles, vehicle speed, and steering angle, ensuring the light does not interfere with obstacles and complies with lane regulations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If patterned light is emitted at a predetermined position with a predetermined shape regardless of obstacles, then the illuminating device is simple to operate, but the patterned light does not accurately indicate the actual travel path when obstacles are present
Solution Approach 1:
The patterned light is dynamically adjusted based on detected obstacles. The illumination controller modifies the shape and position of the emitted patterned light according to the actual travel path determined by obstacle detection, transforming the static predetermined pattern into a dynamic adaptive pattern that accurately reflects the vehicle's intended path around obstacles
Solution Approach 2:
The system implements feedback by detecting obstacles with sensors, determining the actual travel path based on detection results, and adjusting the patterned light emission accordingly. This closed-loop control ensures the illuminated pattern continuously reflects the current travel situation, maintaining accurate path indication despite changing conditions
2Device complexity
If the patterned light shape is fixed in advance, then the device complexity is low, but the patterned light cannot adapt to different travel paths caused by obstacles
Solution Approach 1:
The system transitions from a fixed predetermined pattern to a dynamic adaptive pattern. The illumination controller receives real-time obstacle detection data and continuously adjusts the patterned light's shape and position, enabling the system to adapt to various travel paths around different obstacle configurations without requiring multiple fixed patterns
Solution Approach 2:
The illumination controller serves multiple functions: it controls the basic illumination, detects obstacle positions through integrated sensors, determines optimal travel paths, and generates appropriate patterned light shapes for different scenarios. This multi-functional approach allows a single device to handle diverse situations without requiring separate specialized components for each scenario
Data Source
AI summary
A road surface illuminating device includes an illuminating unit mounted on a vehicle and illuminating a road surface with patterned light, an environmental sensor that detects an obstacle around the vehicle, and an illumination controller that controls the illuminating unit. The illumination controller allows emission of the patterned light that indicates an area where the vehicle passes without interference with the obstacle based on a detection result from the environmental sensor.