Wearable Brain State Quantification via Acceleration Thresholds

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Solution Overview

Problem

Current methods for quantifying a worker's brain state are inadequate in providing actionable insights to motivate workers to achieve desirable states and identify tasks that enhance or hinder proper conduct.

Innovation Solution

A brain state analysis system that includes a wearable terminal with an acceleration sensor, processing unit, and storage unit to measure and quantify brain states based on active and inactive periods, using brain indexes to influence behavior and environmental adjustments.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If brain state is quantified using simple activity thresholds, then measurement simplicity is improved, but measurement precision deteriorates

Engineering Contradiction:

Improvemeasurement simplicityVSAvoidbrain state measurement precision

Core Design Contradiction:

Device complexityVSMeasurement precision

Solution Approach 1:

The patent segments brain state measurement into multiple dimensions: activity state (active/inactive), duration (continuous time), and frequency (occurrence rate). By dividing the measurement into these discrete segments, the system achieves precise quantification of brain states while maintaining simple threshold-based detection methods.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent transforms brain state measurement from simple binary classification to multi-parameter quantification including duration and frequency parameters. This parameter expansion enables precise measurement of brain states by capturing not just whether the subject is active, but how long and how frequently the active state occurs.

Inventive Principle:

Principle #35Parameter changes

2Measurement precision

If detailed brain state data is collected, then measurement precision is improved, but loss of information deteriorates

Engineering Contradiction:

Improvebrain state quantification accuracyVSAvoidactionable insight loss

Core Design Contradiction:

Measurement precisionVSLoss of information

Solution Approach 1:

The patent extracts only the most critical features from raw acceleration data: activity state, duration, and frequency. By selecting and extracting these specific parameters that directly relate to brain state, the system maintains high measurement precision while avoiding information overload and preserving actionable insights.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent implements feedback mechanisms where quantified brain state data is returned to workers in real-time or near-real-time. This feedback loop ensures that detailed measurement data translates into actionable insights that workers can immediately use to adjust their behavior and improve their brain states.

Inventive Principle:

Principle #23Feedback

3Measurement precision

If complex analysis methods are used to quantify brain state, then measurement precision is improved, but device complexity deteriorates

Engineering Contradiction:

Improvebrain state analysis accuracyVSAvoidsystem complexity

Core Design Contradiction:

Measurement precisionVSDevice complexity

Solution Approach 1:

The patent enables the wearable device to autonomously perform brain state quantification using onboard processing. The terminal device automatically calculates activity states, durations, and frequencies from acceleration data without requiring complex external analysis systems, thereby achieving precise measurement while keeping the device self-sufficient and relatively simple.

Inventive Principle:

Principle #25Self-service

4Productivity

If real-time brain state monitoring is implemented, then productivity is improved, but loss of time deteriorates

Engineering Contradiction:

Improveworker productivityVSAvoiddata processing time

Core Design Contradiction:

ProductivityVSLoss of time

Solution Approach 1:

The patent performs preliminary processing of acceleration data directly on the wearable device, calculating activity states, durations, and frequencies in real-time as data is collected. This preliminary action eliminates the need for time-consuming post-processing and enables immediate productivity insights without significant time loss.

Inventive Principle:

Principle #10Preliminary action

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

Enables effective motivation of workers by quantifying brain states and identifying tasks that promote desirable conduct, improving productivity and work environment optimization.

Implementation Method 1

an acceleration sensor for measuring the acceleration of motion of the body

Methodology Applied

Scientific EffectAcceleration sensing: Accelerometer

Data Source

PatentUS11172854B2System that measures different states of a subject

Publication Date: 2021.11.16 HAPPINESS PLANET LTD

AI summary

An analysis system analyzes a state of a person and includes a terminal configured to be worn on the person's body. The terminal includes an acceleration sensor, a storage unit, and a processing unit. The processing unit determines whether each value contained in the time series data is in a first state in which the value is equal to or greater than the threshold or in a second state in which the value is less than the threshold. The processing unit also determines a duration which is a period of time during which the first state continues. The processing unit quantifies a brain state of the person on the basis of the duration.