Core Temperature Estimation via Non-Peak Skin Scanning

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Solution Overview

Problem

Existing methods for detecting core temperature are highly inaccurate due to noise in the measurement process, particularly when using peak temperature readings.

Innovation Solution

A computerized method that uses multiple temperature readings from a skin area covering at least one blood vessel, where a processor determines the core temperature by calculating an intermediate estimate and applying a correction function to compensate for inaccuracies, and considers factors such as age, gender, and skin color, with a temperature sensor embedded in a mobile phone that can scan without direct contact and is isolated from heat generated by the processor.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If peak temperature readings are used for core temperature detection, then the measurement process is simple, but the accuracy is highly inaccurate due to noise

Engineering Contradiction:
Improvemeasurement simplicityVSAvoidcore temperature accuracy
Core Design Contradiction:
Ease of operationVSMeasurement precision

Solution Approach 1:

The patent extracts and removes the noisy peak temperature reading from the dataset, selecting instead readings that differ from the peak to avoid noise contamination while maintaining measurement simplicity

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent changes the selection criterion from peak temperature (maximum value) to non-peak temperature readings, and applies correction factors based on multiple parameters including age, gender, and skin color to improve accuracy

Inventive Principle:
Principle #35Parameter changes

2Measurement precision

If multiple temperature readings are collected and correction functions are applied, then the core temperature accuracy is improved, but the measurement process complexity increases

Engineering Contradiction:
Improvecore temperature accuracyVSAvoidmeasurement process complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent creates a universal correction function that handles multiple factors (age, gender, skin color, reading position) in a single computational framework, improving accuracy without proportionally increasing complexity

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The system automatically selects appropriate readings and applies corrections without requiring manual intervention or complex user decisions, maintaining ease of operation despite enhanced processing

Inventive Principle:
Principle #25Self-service

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

This method provides more accurate core temperature measurements by ignoring noisy peak readings and applying correction factors, resulting in improved precision and reliability.

Implementation Method 1

infrared measurement devices that estimate the heat radiation that is radiated from a skin of the person

Methodology Applied
Scientific EffectThermal radiation detection: Thermal Radiation

Data Source

PatentUS11911132B2System, method and computer readable medium for determining a core temperature of a person
Publication Date: 2024.02.27 LIFEWATCH TECH
  • US11911132B2 patent drawing
  • US11911132B2 patent drawing
  • US11911132B2 patent drawing

AI summary

A computerized method for detecting a core temperature of a person, the method may include: receiving multiple temperature readings obtained by scanning a temperature sensor across a skin area of a person, the skin area covers at least one blood vessel, to provide multiple temperature readings; the multiple temperature readings include a peak temperature reading; and determining, by a processor, an estimate of the core temperature of the person in response to at least one temperature reading that differs from the peak temperature reading.