VR Headset Fit Detection via Pressure Sensors
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Solution Overview
Problem
Virtual reality (VR) and augmented reality (AR) headsets often cause discomfort due to improper fitting, leading to incorrect pressure distribution and tracking issues, as they can be worn too loosely or too tightly, resulting in decoupling and damping of head movements.
Innovation Solution
Incorporating pressure sensors, motion sensors, strain gauges, or stretch sensors into the headset to generate signals that compare against reference values, with a processor determining the correct fit and providing feedback to adjust the headset's fit or deenergizing it if not worn.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the headset is worn loosely to improve comfort, then pressure distribution improves, but tracking accuracy deteriorates due to decoupling and damping of head movements
Solution Approach 1:
The patent employs sensors (pressure, motion, strain, stretch) that continuously monitor headset fit and provide feedback signals to a processor. The processor compares these signals against reference values and generates feedback instructions displayed on the headset display, guiding the user to adjust the fit to achieve optimal balance between comfort and tracking accuracy.
Solution Approach 2:
The patent replaces manual mechanical adjustment with automated sensor-based detection and electronic feedback. Instead of relying on user intuition to achieve proper fit, the system uses pressure sensors, motion sensors, strain gauges, or stretch sensors coupled with processors to objectively measure fit quality and provide guidance, substituting mechanical trial-and-adjustment with electronic measurement and feedback.
2Measurement precision
If the headset is worn tightly to improve tracking accuracy, then tracking accuracy improves, but comfort deteriorates due to incorrect pressure distribution
Solution Approach 1:
The system uses sensors to detect excessive pressure or improper fit and provides real-time feedback instructions on the headset display, guiding the user to loosen or reposition the headset to achieve optimal comfort while maintaining adequate tracking accuracy.
Solution Approach 2:
The patent replaces subjective comfort assessment with objective sensor measurements of pressure distribution, motion coupling, and structural strain, using electronic feedback to guide users to the optimal fit point rather than relying on uncomfortable trial-and-error adjustment.
3Measurement precision
If sensors and processors are added to detect fit quality, then fit monitoring capability improves, but device complexity increases
Solution Approach 1:
The patent employs multi-functional sensors that can detect multiple aspects of headset fit (pressure, motion, strain, stretch) using a single integrated sensing system. The processor performs multiple functions including comparing sensor signals against reference values, determining fit quality across different parameters, and generating comprehensive feedback instructions, thereby reducing overall system complexity through functional integration.
Solution Approach 2:
The system includes a reference value storage component that allows the headset to learn and store individual user fit characteristics. The processor compares real-time sensor readings against these stored references, enabling the system to self-adjust and provide personalized fit guidance without requiring external calibration equipment or complex setup procedures.
4Use of energy by moving object
If the headset is deenergized to conserve power when not worn, then power consumption decreases, but readiness to use increases when needed
Solution Approach 1:
The patent implements periodic sensing or low-power monitoring modes where the headset can quickly detect presence/absence of the user and transition between powered-off and active states. The sensor system is designed to operate in sleep modes with periodic wake checks, allowing the headset to conserve power when not in use while maintaining rapid readiness to become fully operational when needed.
Data Source
AI summary
A sensor generates signals representing whether a computer game headset is being worn properly so that the wearer may be advised. The sensor may be a pressure sensor or motion sensor or stretch sensor on the headset, or it may be a camera that images the wearer and uses image recognition to determine if the headset is on correctly.