Smart Shoes Sensor Fusion for Accurate Weight Measurement

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Conventional smart shoes fail to accurately measure a user's weight and center of gravity due to neglecting factors like clothing weight and foot shape, leading to inaccurate pressure distribution data, and often compromise user convenience with separate devices or improper measurement techniques.

Innovation Solution

Smart shoes equipped with detachable sensors, including pressure, temperature, acceleration, and altitude sensors, that collect and analyze data to provide accurate weight measurements, considering ambient temperature and clothing weight, and offer a guidance program via a user device for improved health management, while allowing social sharing of results.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If conventional smart shoes use simple pressure sensors to measure weight and pressure distribution, then the device structure remains simple, but the measurement precision deteriorates due to neglecting clothing weight and foot shape factors

Engineering Contradiction:
Improveweight measurement accuracyVSAvoidsensor system complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The sensor system is segmented into multiple functional sensor types (pressure sensors for weight distribution, temperature sensors for environmental compensation, acceleration sensors for motion detection, and altitude sensors for position data). Each sensor type addresses specific measurement factors, allowing the system to achieve high precision weight measurement by considering multiple variables simultaneously while maintaining modular device architecture.

Inventive Principle:
Principle #1Segmentation

2Measurement precision

If separate measurement devices are added to improve measurement accuracy, then the measurement precision improves, but the ease of operation deteriorates due to reduced user convenience

Engineering Contradiction:
Improveweight and pressure measurement accuracyVSAvoiduser convenience
Core Design Contradiction:
Measurement precisionVSEase of operation

Solution Approach 1:

Multiple sensor types (pressure, temperature, acceleration, altitude) are merged into a single integrated smart shoe system. The shoe combines all necessary measurement functions in one device, eliminating the need for separate measurement equipment while maintaining high measurement precision. This integration ensures user convenience as users simply wear the smart shoe without needing to attach or operate additional separate devices.

Inventive Principle:
Principle #5Merging (Combining)

3Reliability

If the smart shoe system collects and analyzes multiple types of sensor data (pressure, temperature, acceleration, altitude), then the measurement precision and reliability improve, but the device complexity and data processing requirements increase

Engineering Contradiction:
Improveweight measurement reliabilityVSAvoidsensor information processing complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The smart shoe system employs multi-functional sensors that serve multiple purposes. For example, pressure sensors not only measure weight distribution but also detect foot shape and gait characteristics. Temperature sensors provide environmental data for compensation while also monitoring shoe interior conditions. Acceleration and altitude sensors contribute to both motion detection and position tracking. This multi-functionality allows the system to achieve high reliability through comprehensive data collection while managing complexity through unified sensor design.

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

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 enhances the accuracy of weight measurement and user convenience by providing reliable health management services through advanced sensor data analysis and social networking features, promoting user engagement and physical condition monitoring.

Implementation Method 1

a pressure sensor to sense a pressure in the smart shoes

Methodology Applied
Scientific EffectPressure sensing:

Implementation Method 2

a temperature sensor to sense a temperature in the smart shoes

Methodology Applied
Scientific EffectTemperature sensing:

Implementation Method 3

an acceleration sensor to sense a movement of the smart shoes

Methodology Applied
Scientific EffectAcceleration sensing: Accelerometer

Implementation Method 4

an altitude sensor to sense an altitude

Methodology Applied
Scientific EffectAltitude sensing:

Data Source

PatentUS10473483B2Smart shoes, method of providing sensor information to smart shoes, smart device and method of providing guidance program via smart device
Publication Date: 2019.11.12 ELECTRONICS & TELECOMM RES INST
  • US10473483B2 patent drawing
  • US10473483B2 patent drawing
  • US10473483B2 patent drawing

AI summary

Smart shoes including a sensor unit including at least one sensor of a pressure sensor to sense a pressure in the smart shoes, a temperature sensor to sense a temperature in the smart shoes, an acceleration sensor to sense a movement of the smart shoes and an altitude sensor to sense an altitude, a controller to collect sensor information output by the at least one sensor and process the collected sensor information according to a request from a user device, and a providing unit to provide the processed sensor information to the user device.