Posture Correction System Using Dynamic Visual Stimuli

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Solution Overview

Problem

Existing systems are ineffective in correcting a user's posture, which can lead to muscle strain and discomfort.

Innovation Solution

A posture correction system that directs the user's line of sight to a position higher than their gazing region, using visual stimuli such as light to prompt cervical and thoracic stretching, and optionally includes electrical stimulus to assist muscle tension.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the line of sight is directed to a higher position to prompt stretching, then posture correction effectiveness is improved, but user comfort may deteriorate due to increased visual strain

Engineering Contradiction:

Improveposture correction effectivenessVSAvoidvisual strain

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The system applies periodic visual stimuli (flashing lights, changing brightness) at intervals rather than continuously, allowing the user's eyes and neck muscles to adapt and recover between stimuli. This periodic approach maintains posture correction effectiveness while reducing cumulative visual strain.

Inventive Principle:

Principle #19Periodic action

Solution Approach 2:

The system dynamically adjusts visual stimulus parameters (brightness, flash frequency, duration) based on user response and posture detection feedback. By optimizing these parameters, the system achieves effective posture correction while minimizing visual discomfort and strain.

Inventive Principle:

Principle #35Parameter changes

2Ease of operation

If visual stimulus intensity is increased to direct line of sight, then directing effectiveness is improved, but visual comfort deteriorates

Engineering Contradiction:

Improveline of sight directing effectivenessVSAvoidvisual discomfort

Core Design Contradiction:

Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The visual stimulus intensity is made dynamic rather than static. The system adjusts brightness, flash frequency, and stimulus duration in real-time based on detected user posture and response, optimizing the balance between directing effectiveness and visual comfort.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The system incorporates feedback mechanisms that monitor user posture and visual response to adjust stimulus intensity accordingly. This closed-loop control ensures effective line of sight direction while preventing excessive visual discomfort by reducing stimulus intensity when discomfort is detected.

Inventive Principle:

Principle #23Feedback

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

The system effectively prompts users to stretch their cervical and thoracic vertebrae, improving their posture and reducing the risk of back pain and stiff shoulders.

Implementation Method 1

the visual stimulus may be light, and the directing means may form at least one of increasing the brightness of the light serving as the object for directing the line of sight of the user, flashing the light, changing the color of the light, and making the light serving as the object move

Methodology Applied

Scientific EffectLight: Light

Data Source

PatentUS12315361B2Posture correction system, posture correction method, and program

Publication Date: 2025.05.27 TOYOTA JIDOSHA KK

AI summary

To provide a posture correction system, a posture correction method, and a program each adapted to correct a posture of a user. A posture correction system includes directing means for directing a line of sight of a user to a position higher than a position of a gazing region which the user gazes at, thereby prompting the user to stretch his/her cervical and thoracic vertebrae.