Vehicle Cabin Light Guidance for Occupant Gaze Direction
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Solution Overview
Problem
Current light emission systems in vehicles are ineffective in alerting occupants to important information due to lack of targeted guidance and adaptation to environmental conditions.
Innovation Solution
A light emission control device that acquires information about target objects and vehicle occupants' visual fields, controlling light emitting units to interlock their emission and guide the occupant's gaze towards the target, while adapting to environmental factors like brightness and contrast.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If plural light emitting units simply emit light without coordinated control, then the device complexity is reduced, but the alerting effectiveness to occupant is lowered
Solution Approach 1:
Multiple light emitting units are controlled to emit light in a coordinated manner, merging their individual light emissions into a unified visual signal that guides the occupant's gaze toward the target object, thereby enhancing alerting effectiveness through combined action rather than isolated emissions
Solution Approach 2:
The light emission pattern is made dynamic by sequentially activating different light emitting units to create a moving light effect that traces a path toward the target object, making the alerting signal more noticeable and effective compared to static simultaneous emission
2Ease of operation
If light emission does not follow a specific path, then the device complexity is reduced, but the ability to guide occupant gaze is lost
Solution Approach 1:
The gaze guidance function is segmented into multiple discrete light emitting units arranged in a specific spatial configuration, where each unit contributes to creating a light path by emitting light in sequence, breaking down the complex guidance task into manageable individual actions
Solution Approach 2:
The light itself acts as an intermediary element that mediates between the target object detection system and the occupant's visual attention, creating a visible path that naturally guides the occupant's gaze from the current position toward the target object without requiring direct line-of-sight or complex interface controls
3Reliability
If light emission does not consider central visual field, then the device complexity is reduced, but the alerting effectiveness is lowered
Solution Approach 1:
The light emission control is optimized for the local region of the occupant's central visual field, concentrating the moving light path within this high-acuity viewing zone to maximize visibility and attention capture, rather than distributing light emissions uniformly across the entire visual field
Data Source
AI summary
A light emission control device comprises a memory; and a processor coupled to the memory. the processor is configured to acquire information related to a target object in surroundings of a vehicle, and perform control so as to interlock light emission of a plurality of light emitting units provided inside the vehicle in a case in which the target object is present.