AI Sensor Model Retraining by Reference Sensor Switching

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Solution Overview

Problem

The management of artificial intelligence models trained to predict sensor measurements in industrial environments is complex due to differences in data format, resolution, and frequency from various sensors, as well as environmental changes and computing constraints, making it difficult to maintain optimal model performance over time.

Innovation Solution

A computer-implemented method for managing AI models involves obtaining measurements from a reference sensor, comparing predictions with actual measurements using a distance metric, selecting a new reference sensor when the distance exceeds a threshold, re-training the AI model with historical data from the new sensor, and evaluating the re-trained model before deploying it.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of energy

If a single AI model is generalized to multiple data sensors to save storage resources and computing power, then resource efficiency is improved, but model performance deteriorates due to data format, resolution, and frequency differences among sensors

Engineering Contradiction:
Improvecomputing power and storage resourcesVSAvoidmodel prediction accuracy
Core Design Contradiction:
Loss of energyVSMeasurement precision

Solution Approach 1:

The patent segments sensors into groups based on their data characteristics (format, resolution, frequency) and assigns specific AI models to each group. This segmentation allows each model to be optimized for its specific sensor group while maintaining resource efficiency through shared infrastructure and model management.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent changes model parameters dynamically based on sensor group characteristics. Different sensor groups receive models with adjusted parameters suited to their specific data formats, resolutions, and frequencies, thereby maintaining high prediction accuracy while using a generalized model approach.

Inventive Principle:
Principle #35Parameter changes

2Measurement precision

If manual management of AI models is implemented, then model customization for each sensor can be achieved, but operational complexity increases significantly

Engineering Contradiction:
Improvemodel-sensor matching accuracyVSAvoidmodel management difficulty
Core Design Contradiction:
Measurement precisionVSEase of operation

Solution Approach 1:

The system implements automated model management where the platform automatically assigns models to sensor groups, monitors performance, and retraining occurs without manual intervention. The system serves itself by detecting when retraining is needed and executing the retraining process automatically based on performance metrics.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent implements continuous feedback loops where model performance is monitored against actual sensor data, and when performance degradation is detected, the system automatically triggers retraining. This feedback mechanism maintains high accuracy while eliminating manual management complexity.

Inventive Principle:
Principle #23Feedback

3Adaptability or versatility

If AI models are re-trained frequently to adapt to environmental changes, then model adaptability is improved, but computational cost and time increase

Engineering Contradiction:
Improvemodel adaptation to environmental changesVSAvoidmodel retraining time
Core Design Contradiction:
Adaptability or versatilityVSLoss of time

Solution Approach 1:

The patent implements periodic retraining based on performance monitoring rather than continuous retraining. Models are retrained at intervals determined by performance degradation thresholds, ensuring adaptability to environmental changes while minimizing unnecessary retraining that would waste time and computational resources.

Inventive Principle:
Principle #19Periodic action

Solution Approach 2:

The system changes retraining parameters dynamically based on environmental change detection. When environmental changes are detected through performance monitoring, retraining is triggered with adjusted parameters to adapt quickly; when stability is maintained, retraining is deferred to reduce time and computational costs.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS20250190870A1Method, device and computer system for managing artificial intelligence models for predicting sensor measurements
Publication Date: 2025.06.12 ATOS FRANCE
  • US20250190870A1 patent drawing
  • US20250190870A1 patent drawing
  • US20250190870A1 patent drawing

AI summary

The method comprises the following steps, implemented by a computer system, of:comparing (E4) predictions of measurements of a reference sensor of a group of given sensors placed in a real environment for a given time period, produced by an artificial intelligence model associated with said group of sensors, with measurements obtained for said reference sensor, using a first distance metric;when (E5) the distance obtained is greater than a first given threshold, selecting (E6) a new reference sensor for said group from among other sensors in the group, the new reference sensor selected being associated with a smaller distance between the predictions of the artificial intelligence model and the measurements collected for the given time period,re-training (E7) said artificial intelligence model,evaluating (E8) said re-trained artificial intelligence model using an evaluation set comprising at least some of said obtained measurements, for which the obtained distance is greater than said first given threshold; andin the event of a successful evaluation, making the re-trained artificial intelligence model available (E9) for deployment in the environment.