Vehicle Motion Sickness Detection Using Radar Head Tracking
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Solution Overview
Problem
Existing methods fail to accurately detect and mitigate motion sickness in vehicle users, particularly in autonomous vehicles, leading to debilitating effects for passengers.
Innovation Solution
A motion sickness mitigation system using a radar sensor and a triaxial accelerometer to measure vehicle and head movements, combined with an MSI model for prediction, activates mitigation controls such as adjusting vehicle systems and driving style to alleviate symptoms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If motion sickness detection methods are implemented, then motion sickness mitigation effectiveness is improved, but device complexity increases
Solution Approach 1:
The radar sensor system is designed to perform multiple functions: it detects head movements for motion sickness prediction, monitors occupancy status, and tracks user positioning within the vehicle. By making the radar system multi-functional, the patent avoids adding separate dedicated sensors solely for motion sickness detection, thereby improving mitigation effectiveness while limiting the increase in device complexity.
Solution Approach 2:
The existing radar infrastructure in autonomous vehicles is leveraged to automatically detect head movements and predict motion sickness without requiring additional active user input or separate measurement systems. The system uses readily available sensor data and applies algorithms to self-determine motion sickness risk, reducing the need for complex additional hardware while improving reliability.
2Measurement precision
If radar sensors and multiple measurement systems are used, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The radar sensor serves multiple measurement purposes simultaneously - it tracks head position, velocity, and acceleration for motion sickness prediction, while also providing occupancy detection and user positioning data. This multi-functional use of a single sensor type improves measurement precision without proportionally increasing device complexity.
Solution Approach 2:
The patent combines motion sickness detection functionality with the existing autonomous vehicle radar infrastructure. By merging the motion detection algorithms with the already-deployed radar system, the patent achieves precise head movement measurement without adding separate dedicated sensors, thus improving measurement precision while controlling device complexity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Accurately predicts and mitigates motion sickness by adjusting vehicle settings and driving style, providing effective relief for passengers with varying sensitivity levels.
Implementation Method 1
a radar sensor for detecting a second movement measurement of a head of the user
Data Source
AI summary
Systems, methods, and other embodiments described herein relate to detecting whether a user in a vehicle is experiencing motion sickness. In one embodiment, a method includes determining whether a user in a vehicle is experiencing motion sickness based on a first movement measurement of the vehicle and a second movement measurement of a head of the user using a radar sensor and in response to determining whether the user is experiencing motion sickness, activating mitigation control.