Pulse Wave Measurement Period Adaptation

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Solution Overview

Problem

Existing biological information estimating devices require user identification and prior measurement data to reduce measurement time, limiting their ability to quickly estimate biological information without prior knowledge of the user.

Innovation Solution

A device and method that detect pulse waves on a living organism, modify the measurement period based on the organism's pulse pace, and estimate biological information using a detection unit, modifying unit, and estimating unit, allowing for rapid estimation without user identification.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of time

If user identification and prior measurement data are required to reduce measurement time, then measurement efficiency is improved for identified users, but device complexity and ease of operation deteriorate due to additional identification steps

Engineering Contradiction:

Improvemeasurement timeVSAvoiduser identification system

Core Design Contradiction:

Loss of timeVSDevice complexity

Solution Approach 1:

The system automatically detects pulse waves and determines measurement period length without requiring user identification or manual input. The device serves itself by autonomously adapting to different users' physiological characteristics through real-time pulse wave analysis, eliminating the need for external identification systems while maintaining personalized measurement efficiency

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The measurement period length is dynamically changed based on detected pulse pace rather than being fixed or pre-configured. The system adjusts the measurement duration parameter in real-time according to the user's physiological state, allowing rapid measurements without requiring prior user data or identification

Inventive Principle:

Principle #35Parameter changes

2Device complexity

If a fixed measurement period is used, then device complexity is reduced, but measurement precision deteriorates for users with different pulse paces

Engineering Contradiction:

Improvemeasurement control systemVSAvoidbiological information accuracy

Core Design Contradiction:

Device complexityVSMeasurement precision

Solution Approach 1:

The measurement period length transitions from a static fixed value to a dynamic parameter that automatically adjusts based on the detected pulse pace. The system continuously monitors pulse wave characteristics and modifies the measurement duration accordingly, ensuring optimal measurement precision for each user's physiological rhythm without adding complex control mechanisms

Inventive Principle:

Principle #15Dynamics

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 the reduction of measurement time to under 10 seconds for estimating biological information such as blood pressure and pulse rate without prior user identification or data, improving efficiency and convenience.

Implementation Method 1

a detection unit configured to detect a pulse wave on a living organism

Methodology Applied

Scientific EffectPulse wave detection: Vibration

Data Source

PatentUS20230380703A1Biological information estimating device and biological information estimating method

Publication Date: 2023.11.30 SHARP KK

AI summary

A biological information estimating device includes: a detection unit configured to detect a pulse wave on a living organism; a modifying unit configured to modify a length of a measurement period based on a pulse pace of the living organism; and an estimating unit configured to estimate biological information from the pulse wave detected in the measurement period.