Vehicle Ceiling Projection Control for Multi-Occupant Lighting
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Solution Overview
Problem
Current technologies do not provide optimal illumination control and video projection suitable for varying actions or states of multiple occupants in an automated vehicle, limiting the flexibility of interior space usage.
Innovation Solution
A projector control apparatus that analyzes the state of vehicle occupants using cameras and distance sensors, adjusting illumination and image output in units of sectioned areas of the vehicle ceiling to provide personalized and adaptive lighting and content based on occupant analysis results.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If illumination is provided uniformly across the entire vehicle interior, then the overall brightness and usability of the space is improved, but the ability to accommodate different occupant needs and activities is worsened
Solution Approach 1:
The vehicle ceiling screen is divided into multiple independent sectioned areas that can be controlled separately. Each section can display different images and have different illumination characteristics, allowing simultaneous accommodation of multiple occupant activities such as reading, watching movies, or sleeping in different zones of the vehicle interior.
Solution Approach 2:
Different sectioned areas of the ceiling screen are assigned different local qualities including varying luminance levels, different image content, and selective illumination. This allows each zone to be optimized for specific occupant activities, such as providing bright illumination for reading areas while maintaining dark zones for sleeping occupants.
2Device complexity
If a single projector outputs light to the entire ceiling screen, then the device complexity is reduced, but the precision of controlling illumination and image output for different areas is worsened
Solution Approach 1:
The ceiling screen is segmented into multiple independently controllable sectioned areas. A single projector can output light to all sections, but each section's illumination characteristics and displayed image content are controlled independently through digital processing, achieving precise area-specific control without requiring multiple physical projectors.
Solution Approach 2:
The solution moves from physical multiplication of projectors to digital/dimensional control of a single projector's output. By controlling different sections of the ceiling in the spatial dimension and assigning different image/content parameters, the system achieves multi-zone precision control while maintaining a single projector hardware configuration.
Data Source
AI summary
Provided are an apparatus and a method for analyzing a state of a vehicle occupant and performing illumination and image output control by a projector in units of a screen sectioned area of a vehicle ceiling, in accordance with an analysis result. There is provided a data processing unit configured to execute state analysis of an occupant of a vehicle and execute output control of a projector in accordance with an occupant analysis result. The data processing unit performs projector control of outputting illumination light having luminance determined in accordance with the occupant analysis result, in units of a sectioned area of a screen of a vehicle ceiling on which projector output light is outputted. The data processing unit analyzes a state of an occupant on the basis of a camera-captured image, and outputs illumination light having luminance determined in accordance with an occupant state, in units of a screen sectioned area above each occupant.