AR Artificial Horizon Display for Motion Sickness Relief
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Solution Overview
Problem
Motion sickness occurs due to conflicting sensory information when an individual's visual attention is focused on a stationary element within a vehicle's frame of reference, causing discomfort, nausea, and dizziness, as the eyes do not perceive movement while the inner ear does, leading to a mismatch in brain signals.
Innovation Solution
A visual assistance system using a sensor to measure vehicle movement data, an artificial horizon device generating a real-time artificial horizon image based on vehicle and head position data, and a portable augmented reality device to display this image, ensuring visual information aligns with inner ear inputs, reducing motion sickness symptoms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the individual's visual attention is focused on a stationary element in the vehicle's frame of reference, then the visual information remains stable and clear, but the inner ear perceives vehicle movement creating conflicting sensory information that causes motion sickness
Solution Approach 1:
The patent introduces an artificial horizon as an intermediary visual element that mediates between the stationary vehicle interior and the moving external environment. This artificial horizon, displayed through augmented reality glasses, provides visual feedback about vehicle movement (pitch, roll, yaw) without requiring the user to look at actual moving scenery, thus resolving the sensory conflict between visual stability and vestibular movement detection
Solution Approach 2:
The system implements feedback by continuously displaying the artificial horizon that reflects real-time vehicle movement data from sensors. This visual feedback loop allows the user's visual system to receive accurate information about vehicle orientation and movement, synchronizing visual perception with vestibular perception and eliminating the sensory mismatch that causes motion sickness
2Object-affected harmful factors
If an artificial horizon system is implemented to provide visual movement information, then motion sickness symptoms are reduced, but the system complexity increases with sensors, processing units, and augmented reality devices
Solution Approach 1:
The patent employs a multi-functional integrated system where the augmented reality glasses serve multiple purposes: displaying the artificial horizon, providing navigation information, and potentially other vehicle-related data. The sensor system also serves dual functions by providing data for both the artificial horizon generation and vehicle navigation systems, thereby distributing complexity across existing vehicle systems rather than adding dedicated single-function components
Solution Approach 2:
The system utilizes the vehicle's existing sensor infrastructure (accelerometers, gyroscopes, GPS) to provide the movement data needed for artificial horizon generation, rather than requiring completely independent sensing systems. The processed information then serves multiple functions including motion sickness mitigation and vehicle navigation, allowing the system to pay for itself through multi-use of the collected data
3Measurement precision
If the artificial horizon image is generated in real-time based on vehicle movement data, then the visual information accurately reflects current vehicle position, but the processing time and computational resources increase
Solution Approach 1:
The system performs preliminary actions by pre-calculating and buffering vehicle movement data from sensors before it is needed for artificial horizon display. The processing unit maintains a ready queue of processed movement information, so when display refresh is required, the data is already prepared and can be rendered immediately, reducing real-time processing delays while maintaining accurate representation of vehicle position
Data Source
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AI summary
The present invention relates to a system (2) and a method for providing visual assistance to an individual suffering from motion sickness. The system comprises: - a sensor (3) configured to measure movement data of a vehicle in real time, - an artificial horizon device (5) designed to generate an image of an artificial horizon in real time on the basis of the vehicle movement data, and - a wearable augmented reality device (7) designed to display the image of the artificial horizon in real time to an individual who is wearing the wearable device and is a passenger in the vehicle.