Eye Tracking Sensors for Mental Strain Reduction

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Solution Overview

Problem

Extended use of information handling systems leads to mental strain and health issues, necessitating real-time monitoring of physiological signals without interfering with user efficiency or requiring intrusive monitoring devices.

Innovation Solution

Integration of dye-sensitized photoelectric cells in information handling systems to capture reflected light from a user's eye, converting it into voltage values to assess eye movement and blinking, and taking corrective action when fatigue thresholds are met.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If real-time monitoring of physiological signals is implemented, then user mental strain can be detected, but user efficiency may be interfered with

Engineering Contradiction:

Improvemental strain detection accuracyVSAvoiduser efficiency

Core Design Contradiction:

ReliabilityVSProductivity

Solution Approach 1:

The system monitors user physiological signals automatically without requiring user initiation or intervention. The sensors continuously capture eye movement data and the processing system autonomously analyzes fatigue levels, allowing the monitoring function to serve itself without interfering with user workflow

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The patent replaces intrusive mechanical monitoring devices with optical sensors that capture reflected light from the user's eye. This substitution enables non-contact, passive monitoring that does not physically interfere with the user while still achieving reliable detection of physiological signals

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Measurement precision

If intrusive monitoring devices are used, then physiological signals can be measured, but user convenience is reduced

Engineering Contradiction:

Improvephysiological signal measurementVSAvoiduser convenience

Core Design Contradiction:

Measurement precisionVSEase of operation

Solution Approach 1:

The system replaces traditional mechanical or wearable monitoring devices with an optical measurement system that uses reflected light from the user's eye. This eliminates the need for users to wear or carry monitoring equipment while maintaining measurement precision through non-contact optical sensing

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

Instead of directly measuring physiological signals through contact with the user's body, the system creates an optical copy or reflection of light from the eye and analyzes this reflected light to infer physiological state. This indirect measurement method preserves user convenience while achieving measurement goals

Inventive Principle:

Principle #26Copying

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

Effectively monitors and reduces mental strain by providing timely alerts and automatic corrective actions, improving user health and efficiency by detecting fatigue levels without proactive user measures.

Implementation Method 1

converting the captured light to voltage values over time

Methodology Applied

Scientific EffectPhotoelectric Effect: Photoelectric Effect

Data Source

PatentUS20240358302A1System and Method to Dynamically Assess and Reduce User Mental Strain When Operating Information Handling Systems

Publication Date: 2024.10.31 DELL PROD LP

AI summary

A system, method, and computer-readable medium for assessing and reducing mental strain of a user when the user operates an information handling system comprising. Sensors of the information handling system's display capture light that is reflected from an eye of the user. The captured light is converted to voltage values over time. The voltage values are correlated to eye movement or blinking. If the eye movement or blinking meets or exceeds a threshold value, corrective action is taken to reduce mental strain of the user.