Sensing Device for Automatic Food Intake Tracking and Feedback

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Solution Overview

Problem

Existing methods for tracking food intake are cumbersome, require significant human intervention, lack real-time feedback, and fail to provide insights into eating behavior, particularly in diverse meal scenarios and social settings, leading to low accuracy and user dropout.

Innovation Solution

A sensing device with integrated sensors, such as accelerometers and gyroscopes, autonomously detects food intake events, tracks eating patterns, and provides real-time feedback without requiring user intervention, capable of handling various meal scenarios and social settings.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If manual food intake tracking methods (written diaries, manual data entry) are used, then users can log food consumption, but the process is cumbersome and time-consuming leading to low accuracy and high dropout rates

Engineering Contradiction:
Improvefood intake tracking accuracyVSAvoiduser burden
Core Design Contradiction:
Measurement precisionVSEase of operation

Solution Approach 1:

The system enables automatic food intake tracking by detecting eating behaviors through sensors (accelerometers, gyroscopes, cameras) without requiring manual user input. The device autonomously monitors eating events, counts bites, and tracks consumption patterns, allowing the system to serve itself rather than relying on users to manually log their food intake.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent replaces manual mechanical tracking methods (writing in diaries, manual data entry) with automated electronic sensing systems. Sensors detect eating behaviors mechanically (mouth movements, utensil handling) and convert this information into digital data, eliminating the need for manual operation while improving accuracy.

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

2Ease of operation

If automated sensor-based tracking is implemented, then manual data entry burden is reduced, but device complexity increases

Engineering Contradiction:
Improveautomatic tracking capabilityVSAvoidsensor integration complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The system uses a multi-functional wearable device that combines various sensors (accelerometers, gyroscopes, cameras, microphones) into a single integrated platform. This universal device can track multiple aspects of eating behavior (bite counting, food identification, timing) simultaneously, reducing the need for multiple separate devices while managing complexity through consolidation.

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

Solution Approach 2:

The patent divides the tracking system into modular functional components: motion sensors for bite detection, cameras for food identification, microphones for eating sound analysis, and processing units for data interpretation. This segmentation allows each component to be optimized independently while working together as an integrated system.

Inventive Principle:
Principle #1Segmentation

3Extent of automation

If existing sensor-based methods are used, then some automatic tracking is achieved, but they cannot handle diverse meal scenarios and social settings properly

Engineering Contradiction:
Improveautomatic food detection capabilityVSAvoidmeal scenario coverage
Core Design Contradiction:
Extent of automationVSAdaptability or versatility

Solution Approach 1:

The system dynamically adapts to different eating scenarios by continuously learning and adjusting its detection algorithms. The machine learning models are trained on diverse data from various meal types, social settings, and cultural contexts, allowing the system to automatically adjust its interpretation of sensor data to accurately track different eating behaviors across diverse scenarios.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system incorporates feedback mechanisms where sensor data is continuously analyzed and used to refine the tracking accuracy. The machine learning models receive feedback from real-time sensor inputs and adjust their interpretations, improving adaptability to new and diverse eating scenarios over time while maintaining high automation.

Inventive Principle:
Principle #23Feedback

4Loss of information

If comprehensive eating behavior monitoring is implemented, then insights into eating patterns are provided, but real-time feedback capability is lost

Engineering Contradiction:
Improveeating behavior insightsVSAvoidreal-time feedback delay
Core Design Contradiction:
Loss of informationVSLoss of time

Solution Approach 1:

The system performs preliminary processing of sensor data in real-time during eating events, immediately analyzing motion patterns, bite counts, and timing information. This preliminary action enables real-time feedback to be provided during the eating process itself, while more comprehensive analysis for deep insights is performed subsequently using stored data and machine learning models.

Inventive Principle:
Principle #10Preliminary action

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 and compliance of food intake tracking, reduces user burden, and improves social acceptance by providing discreet and comprehensive monitoring of eating behaviors.

Implementation Method 1

A sensing device with integrated sensors, such as accelerometers and gyroscopes, autonomously detects food intake events

Methodology Applied
Scientific EffectAccelerometer: Accelerometer

Implementation Method 2

A sensing device with integrated sensors, such as accelerometers and gyroscopes, autonomously detects food intake events

Methodology Applied
Scientific EffectGyroscope: Gyroscope

Data Source

PatentUS12374455B2Method and apparatus for tracking food intake behaviors and providing relevant feedback
Publication Date: 2025.07.29 MEDTRONIC MINIMED INC
  • US12374455B2 patent drawing
  • US12374455B2 patent drawing
  • US12374455B2 patent drawing

AI summary

A sensing device monitors and tracks food intake events and details. A processor, appropriately programmed, controls aspects of the sensing device to capture data, store data, analyze data and provide suitable feedback related to food intake. More generally, the methods might include detecting, identifying, analyzing, quantifying, tracking, processing and/or influencing, related to the intake of food, eating habits, eating patterns, and/or triggers for food intake events, eating habits, or eating patterns. Feedback might be targeted for influencing the intake of food, eating habits, or eating patterns, and/or triggers for those. The sensing device can also be used to track and provide feedback beyond food-related behaviors and more generally track behavior events, detect behavior event triggers and behavior event patterns and provide suitable feedback.