Vehicle Display Motion Compensation for Carsickness Reduction
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Solution Overview
Problem
Passengers in vehicles experience carsickness and fatigue when watching videos due to limited field of view and mismatch between visual and vestibular signals.
Innovation Solution
An image display method that adjusts images based on vehicle motion information, including zooming, boundary movement, and brightness adjustments, synchronized with the vehicle's acceleration, braking, steering, and navigation data to align visual cues with vestibular signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a camera is used to shoot the driver's field of view and display it on the vehicle-mounted display, then passengers' capability of predicting road conditions is improved, but the visible area of the passenger is limited
Solution Approach 1:
The display screen is divided into multiple independent image display areas, each showing images from different cameras (driver's field of view, passenger's field of view, rear view, side views). This segmentation allows passengers to access multiple views without restricting their physical field of view, thereby improving both prediction capability and visible area simultaneously.
2Device complexity
If a static field of view is provided for passengers, then the system complexity is reduced, but the effect of alleviating carsickness is poor
Solution Approach 1:
The images displayed on the screen dynamically adjust based on real-time vehicle motion information (acceleration, deceleration, turning). The display content changes automatically according to vehicle state, creating a dynamic visual field that compensates for vestibular signals and reduces carsickness without requiring complex additional hardware.
Solution Approach 2:
The system continuously obtains vehicle motion information from sensors and uses this feedback to adjust the displayed images in real-time. This closed-loop feedback mechanism ensures the visual information remains synchronized with actual vehicle motion, effectively reducing the mismatch between visual and vestibular signals that causes carsickness.
3Object-affected harmful factors
If the visible area is expanded to reduce carsickness, then the passenger comfort is improved, but the system complexity increases due to multiple sensors and processing requirements
Solution Approach 1:
The vehicle-mounted display serves multiple functions: it provides entertainment (video playback), navigation information, multiple camera views for situational awareness, and motion-compensated imagery to reduce carsickness. By making the display multi-functional, the system avoids adding separate dedicated devices for each function, thereby improving passenger comfort without proportionally increasing system complexity.
Data Source
AI summary
An image display method includes obtaining motion information of a vehicle, where the motion information includes first information or an upper-layer advanced driver assistant system (ADAS) instruction, where the first information includes one or two of displacement information of a brake pedal and displacement information of an acceleration pedal, and the ADAS instruction is used to instruct the vehicle to travel at an accelerated speed or at a decelerated speed; and zooming in or zooming out a first image based on the motion information of the vehicle, where the first image is an image displayed on a vehicle-mounted display of the vehicle.