Portable Device Motion Intensity Tracking

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Solution Overview

Problem

Individuals find it difficult to estimate the intensity and duration of physical exercise accurately, as it can be interrupted or vary in intensity, making it hard to determine if recommended exercise criteria are met.

Innovation Solution

A portable electronic device with a motion detector and a computer software product that determine instantaneous motion intensity and active time accumulation by processing motion data, providing an objective measure of activity through predefined criteria.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If manual estimation of exercise intensity is used, then the device complexity is low, but the measurement precision is insufficient

Engineering Contradiction:
Improveexercise intensity measurementVSAvoiddevice complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent replaces manual estimation (mechanical/human judgment system) with electronic motion detection and automated processing. The motion detector captures movement data, which is then processed by a processor to calculate exercise intensity objectively, eliminating the need for subjective human estimation and significantly improving measurement precision.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent introduces a motion detector as an intermediary device between the user's physical activity and the measurement system. This intermediary captures motion data that serves as the basis for calculating exercise intensity, providing an objective bridge between physical performance and quantifiable metrics.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Measurement precision

If continuous monitoring of exercise performance is implemented, then the measurement precision is improved, but the use of energy increases

Engineering Contradiction:
Improveexercise duration trackingVSAvoidenergy consumption
Core Design Contradiction:
Measurement precisionVSUse of energy by moving object

Solution Approach 1:

The patent implements periodic sampling of motion data rather than continuous monitoring. The processor evaluates motion data at discrete time points to determine whether exercise criteria are met, accumulating active time in periodic intervals. This approach maintains measurement precision for tracking exercise duration while significantly reducing energy consumption compared to continuous monitoring.

Inventive Principle:
Principle #19Periodic action

3Measurement precision

If detailed motion data processing is performed, then the measurement precision is improved, but the productivity of the system decreases

Engineering Contradiction:
Improveactive time calculationVSAvoidprocessing speed
Core Design Contradiction:
Measurement precisionVSProductivity

Solution Approach 1:

The patent extracts only the essential features from motion data needed for exercise intensity calculation. Rather than processing all available motion data in detail, the system identifies and processes only the relevant parameters required to determine whether exercise criteria are met, maintaining measurement precision while improving processing speed and system productivity.

Inventive Principle:
Principle #2Taking out (Extraction)

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 solution provides an objective estimate of activity duration, helping users assess if they meet exercise intensity and duration recommendations, promoting adherence to health and fitness guidelines.

Implementation Method 1

a motion detector for generating motion data characterizing the local movement of the portable electronic device

Methodology Applied
Scientific EffectMotion detection:

Data Source

PatentUS8169326B2Portable electronic device and computer software product
Publication Date: 2012.05.01 POLAR ELECTRO
  • US8169326B2 patent drawing
  • US8169326B2 patent drawing
  • US8169326B2 patent drawing

AI summary

The invention relates to a portable electronic device and computer software product. The portable electronic device comprises a motion detector for generating motion data characterizing the local movement of the portable electronic device, a motion intensity determiner for determining a instantaneous motion intensity value of the user of the portable electronic device from the motion data, and an active time counter for determining an active time accumulation that sums up the time periods, during which the instantaneous motion intensity value meets predefined activity criteria.