Vehicle Projection Light Irradiation Angle Adjustment
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Solution Overview
Problem
Conventional information display devices for vehicles struggle to ensure that information is easily visible to passengers and pedestrians, as the projection position is not always optimal and does not adapt based on environmental factors like speed limits or obstacles.
Innovation Solution
An information display device equipped with a processor and memory that determines the vehicle's state, detects speed limits, and adjusts the angle of light irradiation on a projection surface using a light irradiation unit to optimize information visibility, switching surfaces if necessary to avoid obstacles or irregular reflections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the projection position is changed to avoid obstructive elements, then the projection can be completed without obstruction, but the information becomes less visible to passengers and pedestrians
Solution Approach 1:
The light irradiation unit dynamically adjusts the irradiation angle based on detected speed limits and obstacle positions. The system transitions from a fixed projection angle to a variable angle that adapts to environmental conditions, allowing optimal balance between avoiding obstructions and maintaining visibility to pedestrians and passengers.
Solution Approach 2:
The system changes the irradiation angle parameter according to the detected speed limit. At higher speed limits, the irradiation angle is adjusted to prioritize pedestrian visibility, while at lower speed limits, the angle can be adjusted to avoid obstacles. This parameter adaptation resolves the contradiction between reliable projection and information visibility.
2Device complexity
If a fixed projection method is used, then the device complexity is reduced, but the information transmission effectiveness decreases in varying environmental conditions
Solution Approach 1:
The system incorporates feedback from the speed limit detection unit and obstacle detection results to adjust the light irradiation angle. This feedback loop enables the system to automatically adapt to varying environmental conditions without requiring complex manual intervention, maintaining information transmission effectiveness while managing device complexity through automated control.
Solution Approach 2:
The light irradiation unit performs self-adjustment based on environmental parameters detected by other system components. The system serves itself by automatically modifying projection characteristics in response to detected conditions, eliminating the need for external manual adjustment and reducing operational complexity while maintaining high information transmission effectiveness.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enhances the visibility and transmission of information by adapting the light projection based on detected speed limits and environmental conditions, ensuring clearer communication of vehicle states to external observers.
Implementation Method 1
a light irradiation unit to display the information indicating the state of the vehicle on a projection surface by irradiating the projection surface outside the vehicle with light
Data Source
AI summary
A vehicle state determination unit for determining a state of a vehicle, a display data output unit for outputting display data for displaying information indicating the state of the vehicle determined by the vehicle state determination unit, and an information displaying unit for displaying information to the outside of the vehicle in accordance with the display data output from the display data output unit are provided, in which the information displaying unit is configured to switch a display method of the information in accordance with an environment of the vehicle. By this, a degree of information transmission may be increased.