Dynamic Projection Surface Switching for Vehicle Information Display
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Solution Overview
Problem
Conventional information display devices for vehicles struggle to project information in a way that is easily visible to passengers and pedestrians, as the projection position is not always optimal and does not adapt based on the presence of obstructive elements or the type of target audience.
Innovation Solution
An information display device that includes a processor to determine the vehicle's state and the target audience, adjusting the display method and time to ensure optimal visibility by switching between different projection surfaces and animation speeds based on vehicle speed, target type, and relative positions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the information is projected on the road surface, then the projection position can be adjusted to avoid obstructive elements, but the information may not be easily visible to passengers and pedestrians
Solution Approach 1:
The projection surface is dynamically selected based on the type of target audience. For pedestrians and passengers, the system projects information on the vehicle body or windshield instead of the road surface, adapting the display location to ensure visibility for the intended audience while maintaining reliable information transmission.
Solution Approach 2:
Different projection surfaces are used for different target audiences. The system applies local quality by selecting specific projection locations (road surface for drivers, vehicle body for pedestrians, windshield for passengers) based on where the information needs to be most visible to each group.
2Device complexity
If a fixed projection method is used, then the device complexity is reduced, but the information cannot be correctly transmitted to different target audiences
Solution Approach 1:
The projection method dynamically adapts based on the detected target audience type. The system switches between different projection surfaces (road surface, vehicle body, windshield) according to whether the target is a driver, passenger, or pedestrian, ensuring accurate information transmission without requiring multiple dedicated projection systems.
Solution Approach 2:
A single projection device performs multiple functions by projecting information on different surfaces depending on the target audience. The projection unit can project on the road surface, vehicle body, or windshield, making one device universally applicable to different communication scenarios rather than requiring separate devices for each target type.
3Reliability
If the projection position is changed to avoid obstacles, then the projection reliability is improved, but the information may not be visible to the intended target audience
Solution Approach 1:
The system applies local quality by selecting specific projection locations based on the target audience type. For pedestrians and passengers who need to see information from outside or inside the vehicle, the system projects on the vehicle body or windshield respectively, ensuring the information appears in the local area most accessible to each target group.
Solution Approach 2:
The projection location dynamically changes based on real-time detection of the target audience type. The system transitions between different projection surfaces (road surface, vehicle body, windshield) to maintain both projection reliability and visibility for the intended audience throughout the interaction.
Data Source
AI summary
A vehicle state determining unit (1) for determining a state of a vehicle, a display data output unit (7) for outputting display data for displaying information indicating the state of the vehicle determined by the vehicle state determining unit (1), and an information displaying unit (10) for determining display time of the information from the state of the vehicle determined by the vehicle state determining unit (1) and displaying the information to the outside of the vehicle in accordance with the display data output from the display data output unit (7) during the display time, in which the information displaying unit (10) is configured to switch a display method of the information in accordance with the display time. Thus, a degree of information transmission may be increased.