Automatic Detection of Magnetic Disturbances in Magnetic Inertial Measurement Unit Sensors Based on Recurrent Neural Networks

This paper proposes a new methodology for the automatic detection of magnetic disturbances from magnetic inertial measurement unit (MIMU) sensors based on deep learning. The proposed approach considers magnetometer data as input to a long short-term memory (LSTM) neural network and obtains a labeled...

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Main Authors: Elkyn Alexander Belalcazar-Bolaños, Diego Torricelli, José L. Pons
Format: Article
Language:English
Published: MDPI AG 2023-12-01
Series:Sensors
Subjects:
Online Access:https://www.mdpi.com/1424-8220/23/24/9683
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author Elkyn Alexander Belalcazar-Bolaños
Diego Torricelli
José L. Pons
author_facet Elkyn Alexander Belalcazar-Bolaños
Diego Torricelli
José L. Pons
author_sort Elkyn Alexander Belalcazar-Bolaños
collection DOAJ
description This paper proposes a new methodology for the automatic detection of magnetic disturbances from magnetic inertial measurement unit (MIMU) sensors based on deep learning. The proposed approach considers magnetometer data as input to a long short-term memory (LSTM) neural network and obtains a labeled time series output with the posterior probabilities of magnetic disturbance. We trained our algorithm on a data set that reproduces a wide range of magnetic perturbations and MIMU motions in a repeatable and reproducible way. The model was trained and tested using 15 folds, which considered independence in sensor, disturbance direction, and signal type. On average, the network can adequately detect the disturbances in <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mn>98</mn><mo>%</mo></mrow></semantics></math></inline-formula> of the cases, which represents a significant improvement over current threshold-based detection algorithms.
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spelling doaj.art-0291203f61b54c7b82bc033c05ffb6382023-12-22T14:40:15ZengMDPI AGSensors1424-82202023-12-012324968310.3390/s23249683Automatic Detection of Magnetic Disturbances in Magnetic Inertial Measurement Unit Sensors Based on Recurrent Neural NetworksElkyn Alexander Belalcazar-Bolaños0Diego Torricelli1José L. Pons2Neural Rehabilitation Group, Cajal Institute, Spanish National Research Council (CSIC), 28002 Madrid, SpainNeural Rehabilitation Group, Cajal Institute, Spanish National Research Council (CSIC), 28002 Madrid, SpainLegs and Walking AbilityLab, Shirley Ryan AbilityLab, Chicago, IL 60611, USAThis paper proposes a new methodology for the automatic detection of magnetic disturbances from magnetic inertial measurement unit (MIMU) sensors based on deep learning. The proposed approach considers magnetometer data as input to a long short-term memory (LSTM) neural network and obtains a labeled time series output with the posterior probabilities of magnetic disturbance. We trained our algorithm on a data set that reproduces a wide range of magnetic perturbations and MIMU motions in a repeatable and reproducible way. The model was trained and tested using 15 folds, which considered independence in sensor, disturbance direction, and signal type. On average, the network can adequately detect the disturbances in <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mn>98</mn><mo>%</mo></mrow></semantics></math></inline-formula> of the cases, which represents a significant improvement over current threshold-based detection algorithms.https://www.mdpi.com/1424-8220/23/24/9683inertial measurementmagnetic disturbancemagnetometerdeep neural
spellingShingle Elkyn Alexander Belalcazar-Bolaños
Diego Torricelli
José L. Pons
Automatic Detection of Magnetic Disturbances in Magnetic Inertial Measurement Unit Sensors Based on Recurrent Neural Networks
Sensors
inertial measurement
magnetic disturbance
magnetometer
deep neural
title Automatic Detection of Magnetic Disturbances in Magnetic Inertial Measurement Unit Sensors Based on Recurrent Neural Networks
title_full Automatic Detection of Magnetic Disturbances in Magnetic Inertial Measurement Unit Sensors Based on Recurrent Neural Networks
title_fullStr Automatic Detection of Magnetic Disturbances in Magnetic Inertial Measurement Unit Sensors Based on Recurrent Neural Networks
title_full_unstemmed Automatic Detection of Magnetic Disturbances in Magnetic Inertial Measurement Unit Sensors Based on Recurrent Neural Networks
title_short Automatic Detection of Magnetic Disturbances in Magnetic Inertial Measurement Unit Sensors Based on Recurrent Neural Networks
title_sort automatic detection of magnetic disturbances in magnetic inertial measurement unit sensors based on recurrent neural networks
topic inertial measurement
magnetic disturbance
magnetometer
deep neural
url https://www.mdpi.com/1424-8220/23/24/9683
work_keys_str_mv AT elkynalexanderbelalcazarbolanos automaticdetectionofmagneticdisturbancesinmagneticinertialmeasurementunitsensorsbasedonrecurrentneuralnetworks
AT diegotorricelli automaticdetectionofmagneticdisturbancesinmagneticinertialmeasurementunitsensorsbasedonrecurrentneuralnetworks
AT joselpons automaticdetectionofmagneticdisturbancesinmagneticinertialmeasurementunitsensorsbasedonrecurrentneuralnetworks