Sensor Data Healing via Machine Learning Intermediary
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Solution Overview
Problem
Embedded devices such as smartphones and smartwatches face accuracy limitations in measuring their environment due to physical constraints, processing speed limitations, and connectivity issues, while laboratory hardware for high-quality sensor readings is expensive and limited to laboratory use.
Innovation Solution
A method for training a machine learning model using unaltered training sensor data, further measurement data, user-specific configuration data, and optionally unreliable sensor data to heal, complete, and increase the accuracy of sensor data, which can be deployed on embedded devices or in cloud systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If embedded hardware sensors are miniaturized to fit in smartphones and smartwatches, then device portability and accessibility are improved, but measurement precision and processing speed deteriorate
Solution Approach 1:
The patent introduces a machine learning model as an intermediary component that processes raw sensor data to correct measurement errors and fill data gaps. The ML model acts as a mediator between the limited embedded sensors and the required high-quality measurements, using learned patterns from training data to compensate for sensor inaccuracies without requiring larger or more complex hardware
Solution Approach 2:
The patent creates a virtual copy of high-quality sensor data through machine learning predictions. Instead of relying on physical sensor replicas, the system generates synthetic sensor readings that mimic what ideal sensors would produce, based on patterns learned from comprehensive training datasets that include both embedded sensor data and reference measurements from laboratory-grade equipment
2Measurement precision
If laboratory hardware is used to deliver high-quality sensor readings, then measurement precision is improved, but device portability and application flexibility deteriorate
Solution Approach 1:
The patent extracts the essential quality characteristics of laboratory-grade sensor measurements and embeds them within portable devices through machine learning models. Rather than physically extracting and transporting laboratory equipment, the system captures the measurement quality patterns during training and reproduces them using compact embedded sensors and ML algorithms, enabling high-quality measurements in portable form factors
Solution Approach 2:
The patent transforms the measurement system from relying on physical hardware parameters (sensor size, processing power) to relying on data-driven parameters (training data quality, model architecture, inference algorithms). This parameter transformation enables portable devices to achieve laboratory-grade measurement quality by changing from hardware-centric to software-centric measurement approaches
3Quantity of substance
If embedded sensors process high signal volumes and frequencies, then data completeness is improved, but processing speed and accuracy deteriorate
Solution Approach 1:
The patent performs preliminary action by training the machine learning model offline on comprehensive datasets before deployment. During runtime, the pre-trained model quickly applies learned patterns to correct and complete sensor data, avoiding the need for complex real-time processing of raw sensor streams. This shifts the computational burden from runtime to training time, enabling fast inference on resource-constrained embedded devices
Data Source
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AI summary
A method for healing and/or completing and/or accuracy-increasing of sensor data, preferably delivered by an embedded device, the method comprises providing (S10) a trained machine learning model trained for healing and/or completing and/or accuracy-increasing of sensor data; providing (S11) sensor data from at least one sensory device; preferably continuously, monitoring (S12) the provided sensor data regarding data plausibility and/or an absence of at least one data point; and in case of an inadequate data plausibility and/or an absence of at least one data point, augmenting (S13) the provided sensor data based on at least one user-specific configuration and/or user-specific domain knowledge using the trained machine learning model to heal and/or complete and/or accuracy-increase the provided sensor data; and providing (S14) the healed and/or completed and/or accuracyincreased sensor data.