Vehicle Cabin Lighting System with Adaptive Passenger Tracking
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Solution Overview
Problem
Vehicle cabin lighting systems fail to provide safe and non-disruptive illumination for passengers moving in dark environments without disturbing other passengers, as existing systems either provide inadequate lighting or overly bright illumination.
Innovation Solution
A system that includes a location positioning system and a lighting control system to detect passenger movement and provide a localized, dim illumination zone that follows the passenger, ensuring safety without disrupting others by positioning more illumination in the direction of movement than opposite to it.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If cabin lighting is turned off to provide a dark environment for sleeping passengers, then passenger comfort during sleep is improved, but safety of moving passengers deteriorates
Solution Approach 1:
The patent applies local quality by providing illumination only in the specific area where a passenger is moving, rather than illuminating the entire cabin. The lighting system creates a localized illumination zone that follows the moving passenger, ensuring safety in the immediate vicinity while maintaining darkness in other areas where passengers are sleeping.
Solution Approach 2:
The patent segments the cabin lighting into multiple independently controllable zones. Instead of a single on/off state for the entire cabin, the system divides the lighting into discrete segments that can be activated individually based on passenger movement detection, allowing simultaneous darkness in sleeping areas and illumination in movement areas.
2Reliability
If cabin lighting is turned on to illuminate the entire cabin, then safety of moving passengers is improved, but comfort of sleeping passengers deteriorates
Solution Approach 1:
The system provides illumination locally only where needed - in the immediate vicinity of moving passengers - rather than uniformly illuminating the entire cabin. This localized approach ensures safety for moving passengers while preventing disruption to sleeping passengers in other areas.
Solution Approach 2:
The patent applies partial action by providing only the minimum necessary illumination for passenger safety during movement, rather than full cabin illumination. The lighting is activated only in the specific zone where a passenger is moving, using just enough light to ensure safety without excessive illumination that would disturb sleeping passengers.
3Reliability
If uniform illumination is provided throughout the cabin, then visibility for moving passengers is improved, but energy consumption increases
Solution Approach 1:
The system provides illumination only in the local area where a passenger is moving, rather than uniformly illuminating the entire cabin. This localized illumination approach maintains visibility for moving passengers while significantly reducing energy consumption by keeping lighting off in areas where it is not needed.
Solution Approach 2:
The patent uses partial action by activating lighting only in the specific zone where movement is detected, rather than illuminating the entire cabin. This provides sufficient visibility for passenger safety while minimizing energy consumption by limiting the illuminated area to only what is necessary.
4Object-affected harmful factors
If localized illumination follows passenger movement, then disruption to sleeping passengers is reduced, but system complexity increases
Solution Approach 1:
The patent implements feedback by using sensors to detect passenger movement and using this information to dynamically control the lighting system. The lighting responds to passenger behavior in real-time, activating only when and where movement is detected, thereby reducing disruption to sleeping passengers while managing system complexity through automated sensing and control.
Data Source
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AI summary
A system for providing cabin lighting within a vehicle cabin (70) is disclosed. The system comprises a cabin lighting (26) and a lighting control system (20) for determining whether a predetermined cabin condition is satisfied, detecting movement of a passenger (22) within the vehicle cabin (70) and upon detecting movement of the passenger within the cabin (70) and upon determining that the predetermined cabin condition is satisfied, causing the cabin lighting (26) within the vehicle cabin (70) to provide cabin illumination that follows the movement of the passenger (22).