Automated Heart Rate Variability Curve Generation

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Solution Overview

Problem

Existing methods for analyzing heart rate variability do not automate the production of a curve representing the evolution of an individual's or competition animal's state of form or fatigue, making it difficult to monitor and detect periods of fitness or fatigue across multiple individuals.

Innovation Solution

A method for automated production of a heart rate variability curve, involving normalization, interpolation, and filtering of measurements, which allows for the detection of periods of fatigue without requiring individual-specific detection thresholds, enabling monitoring of multiple individuals' state of form and fatigue.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If automated production of heart rate variability curve is implemented, then monitoring consistency and productivity are improved, but device complexity increases

Engineering Contradiction:
Improvemonitoring efficiencyVSAvoidprocessing complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The automated curve production method segments the heart rate variability analysis into distinct processing stages: raw data acquisition, artifact filtering, normalization, interpolation, and curve generation. Each stage handles specific computational tasks independently, making the complex overall process more manageable and automatable while maintaining monitoring consistency across multiple individuals.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The method applies parameter changes through normalization (transforming raw HRV values to a standardized scale) and interpolation (generating intermediate values to fill gaps in measurements). These parameter transformations enable consistent comparison across individuals and automate the curve production process without requiring manual threshold configuration for each subject.

Inventive Principle:
Principle #35Parameter changes

2Measurement precision

If individual-specific detection thresholds are required, then measurement precision is improved, but ease of operation deteriorates

Engineering Contradiction:
Improvedetection accuracyVSAvoidoperational simplicity
Core Design Contradiction:
Measurement precisionVSEase of operation

Solution Approach 1:

The automated curve production method creates a universal framework that can process and compare heart rate variability data from multiple individuals simultaneously. By using standardized normalization and interpolation procedures, the system achieves operational simplicity while maintaining detection precision through consistent application of the same processing pipeline across all subjects.

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

Solution Approach 2:

The method enables self-service operation by automatically adjusting to individual characteristics through the normalization process. The system adapts to each individual's baseline HRV patterns without requiring manual threshold configuration, making the operation simple while preserving measurement precision through data-driven adaptation.

Inventive Principle:
Principle #25Self-service

Data Source

PatentEP3017757B1Automated method for producing a variation curve of an indicator representing the heart-frequency variability of a human being or a competition animal
Publication Date: 2021.12.01 BE INVEST INT SA
  • EP3017757B1 patent drawingFigure 1a
  • EP3017757B1 patent drawingFigure 1b
  • EP3017757B1 patent drawingFigure 2

AI summary

A method for the automated development of a trend curve for a representative indicator of heart rate variability in an individual or a competition animal, comprising the following steps: - Determining (101) a sequence of measurements of a representative indicator of heart rate variability, said sequence comprising, for each time occurrence of said period, either a measurement or a zero value corresponding to the absence of a measurement at the associated time occurrence, - Normalizing (102) the measurements of said sequence by excluding zero values ​​from the normalization, - Performing at least one interpolation (103, 104) of the normalized sequence by taking a moving average over a predetermined period P of the values ​​in the sequence, with zero values ​​excluded from the average, - If at least one zero value, corresponding to an absent measurement, remains in the interpolated sequence,filter (105) said sequence by setting the P-1 values ​​preceding said at least one zero value and the P-1 values ​​following said at least one zero value to zero.