NDLI: Sleep Monitoring Based on a Tri-Axial Accelerometer and a Pressure Sensor

Please wait, while we are loading the content...

Wireless Sensor Array Network DoA Estimation from Compressed Array Data via Joint Sparse Representation

Compact SPAD-Based Pixel Architectures for Time-Resolved Image Sensors

myBlackBox: Blackbox Mobile Cloud Systems for Personalized Unusual Event Detection

A Task-Centric Cooperative Sensing Scheme for Mobile Crowdsourcing Systems

A Review of Distributed Optical Fiber Sensors for Civil Engineering Applications

Atmospheric and Fog Effects on Ultra-Wide Band Radar Operating at Extremely High Frequencies

Domotics Project Housing Block

An Improved Measurement Method for the Strength of Radiation of Reflective Beam in an Industrial Optical Sensor Based on Laser Displacement Meter

Sleep Monitoring Based on a Tri-Axial Accelerometer and a Pressure Sensor

Integrated Navigation System Design for Micro Planetary Rovers: Comparison of Absolute Heading Estimation Algorithms and Nonlinear Filtering

A Longitudinal Mode Electromagnetic Acoustic Transducer (EMAT) Based on a Permanent Magnet Chain for Pipe Inspection

Self-Oscillation-Based Frequency Tracking for the Drive and Detection of Resonance Magnetometers

A Novel Transient Fault Current Sensor Based on the PCB Rogowski Coil for Overhead Transmission Lines

Experimental Evaluation of Pulsed Thermography, Lock-in Thermography and Vibrothermography on Foreign Object Defect (FOD) in CFRP

Design and Implementation of a Novel Compatible Encoding Scheme in the Time Domain for Image Sensor Communication

Contextualising Water Use in Residential Settings: A Survey of Non-Intrusive Techniques and Approaches

Whole-Body Human Inverse Dynamics with Distributed Micro-Accelerometers, Gyros and Force Sensing

On the Choice of Access Point Selection Criterion and Other Position Estimation Characteristics for WLAN-Based Indoor Positioning

GLORI: A GNSS-R Dual Polarization Airborne Instrument for Land Surface Monitoring

An All-Fiber-Optic Combined System of Noncontact Photoacoustic Tomography and Optical Coherence Tomography

An Approach to the Prototyping of an Optimized Limited Stroke Actuator to Drive a Low Pressure Exhaust Gas Recirculation Valve

Induced Voltage Linear Extraction Method Using an Active Kelvin Bridge for Disturbing Force Self-Sensing

Systematic Error Modeling and Bias Estimation

Olive Crown Porosity Measurement Based on Radiation Transmittance: An Assessment of Pruning Effect

The Conceptual Design of a Mechatronic System to Handle Bedridden Elderly Individuals

Theoretical and Experimental: The Synthetic and Anion-Binding Properties of Tripodal Salicylaldehyde Derivatives

A Continuous Liquid-Level Sensor for Fuel Tanks Based on Surface Plasmon Resonance

Recognizing Physisorption and Chemisorption in Carbon Nanotubes Gas Sensors by Double Exponential Fitting of the Response

A Low-Noise Transimpedance Amplifier for BLM-Based Ion Channel Recording

Error Ellipsoid Analysis for the Diameter Measurement of Cylindroid Components Using a Laser Radar Measurement System

1-RAAP: An Efficient 1-Round Anonymous Authentication Protocol for Wireless Body Area Networks

A Novel Attitude Estimation Algorithm Based on the Non-Orthogonal Magnetic Sensors

Travel Mode Detection with Varying Smartphone Data Collection Frequencies

Color Restoration of RGBN Multispectral Filter Array Sensor Images Based on Spectral Decomposition

Matrix Completion Optimization for Localization in Wireless Sensor Networks for Intelligent IoT

On Modeling Eavesdropping Attacks in Underwater Acoustic Sensor Networks

Self-Locking Avoidance and Stiffness Compensation of a Three-Axis Micromachined Electrostatically Suspended Accelerometer

A Tactile Sensor Using Piezoresistive Beams for Detection of the Coefficient of Static Friction

A Novel Two-Wire Fast Readout Approach for Suppressing Cable Crosstalk in a Tactile Resistive Sensor Array

Evaluation of MPEG-7-Based Audio Descriptors for Animal Voice Recognition over Wireless Acoustic Sensor Networks

Measuring Micro-Friction Torque in MEMS Gas Bearings

A Plasmonic Temperature-Sensing Structure Based on Dual Laterally Side-Coupled Hexagonal Cavities

Methods and Best Practice to Intercompare Dissolved Oxygen Sensors and Fluorometers/Turbidimeters for Oceanographic Applications

A Mobile and Low-Cost System for Environmental Monitoring: A Case Study

Reduction of Motion Artifacts and Improvement of R Peak Detecting Accuracy Using Adjacent Non-Intrusive ECG Sensors

Tools to Perform Local Dense 3D Reconstruction of Shallow Water Seabed

Field-Based Optimal Placement of Antennas for Body-Worn Wireless Sensors

State of the Art in LP-WAN Solutions for Industrial IoT Services

Kinect-Based Virtual Game for the Elderly that Detects Incorrect Body Postures in Real Time

Ultra Wideband Indoor Positioning Technologies: Analysis and Recent Advances

A Novel Method for Proximity Detection of Moving Targets Using a Large-Scale Planar Capacitive Sensor System

Xurography as a Rapid Fabrication Alternative for Point-of-Care Devices: Assessment of Passive Micromixers

Anchoring of FRET Sensors—A Requirement for Spatiotemporal Resolution

Stability-Aware Geographic Routing in Energy Harvesting Wireless Sensor Networks

Measurement of Moisture in Wood for Application in the Restoration of Old Buildings

The Real-Valued Sparse Direction of Arrival (DOA) Estimation Based on the Khatri-Rao Product

Erratum: Sutapun, B. et al. Development and Beam-Shape Analysis of an Integrated Fiber-Optic Confocal Probe for High-Precision Central Thickness Measurement of Small-Radius Lenses. Sensors, 2015, 15, 8512-8526

Influences of Probe’s Morphology for Metal Ion Detection Based on Light-Addressable Potentiometric Sensors

Extracting Objects for Aerial Manipulation on UAVs Using Low Cost Stereo Sensors

A Nonlinear Framework of Delayed Particle Smoothing Method for Vehicle Localization under Non-Gaussian Environment

An Energy Saving System for a Beam Pumping Unit

Determination of Ignitable Liquids in Fire Debris: Direct Analysis by Electronic Nose

Retrieving Land Surface Temperature from Hyperspectral Thermal Infrared Data Using a Multi-Channel Method

Comprehensive Comparisons of Satellite Data, Signals, and Measurements between the BeiDou Navigation Satellite System and the Global Positioning System

Planar Position Sensor Based on Mono Sensing Electrode and Hybrid-Frequency Excitation

Current Developments on Optical Feedback Interferometry as an All-Optical Sensor for Biomedical Applications

Wind Tunnel Analysis of the Airflow through Insect-Proof Screens and Comparison of Their Effect When Installed in a Mediterranean Greenhouse

Particle and Photon Detection: Counting and Energy Measurement

Model-Driven Approach for Body Area Network Application Development

Self-Mixing Demodulation for Coherent Phase-Sensitive OTDR System

Communication Range Dynamics and Performance Analysis for a Self-Adaptive Transmission Power Controller

Coupled Integration of CSAC, MIMU, and GNSS for Improved PNT Performance

Mobile Laser Scanning Systems for Measuring the Clearance Gauge of Railways: State of Play, Testing and Outlook

An in-Depth Survey of Visible Light Communication Based Positioning Systems

Carrying Position Independent User Heading Estimation for Indoor Pedestrian Navigation with Smartphones

Modeling of a Single-Notch Microfiber Coupler for High-Sensitivity and Low Detection-Limit Refractive Index Sensing

A Dual-Field Sensing Scheme for a Guidance System for the Blind

Spectrum and Image Texture Features Analysis for Early Blight Disease Detection on Eggplant Leaves

Bootstrapping Security Policies for Wearable Apps Using Attributed Structural Graphs

Absolute Position Sensing Based on a Robust Differential Capacitive Sensor with a Grounded Shield Window

Assessment of Aliasing Errors in Low-Degree Coefficients Inferred from GPS Data

Image Quality Analysis and Optical Performance Requirement for Micromirror-Based Lissajous Scanning Displays

Wearable Multi-Frequency and Multi-Segment Bioelectrical Impedance Spectroscopy for Unobtrusively Tracking Body Fluid Shifts during Physical Activity in Real-Field Applications: A Preliminary Study

A High Sensitivity IDC-Electronic Tongue Using Dielectric/Sensing Membranes with Solvatochromic Dyes

Determination of the Optimum Harvest Window for Apples Using the Non-Destructive Biospeckle Method

An Efficient Seam Elimination Method for UAV Images Based on Wallis Dodging and Gaussian Distance Weight Enhancement

Analysis of Subthreshold Current Reset Noise in Image Sensors

Classification of Horse Gaits Using FCM-Based Neuro-Fuzzy Classifier from the Transformed Data Information of Inertial Sensor

On the Probabilistic Deployment of Smart Grid Networks in TV White Space

Optimizing Retransmission Threshold in Wireless Sensor Networks

Enabling UAV Navigation with Sensor and Environmental Uncertainty in Cluttered and GPS-Denied Environments

A High-Performance Fluorescence Immunoassay Based on the Relaxation of Quenching, Exemplified by Detection of Cardiac Troponin I

Sensors for Indoor Mapping and Navigation

CoR-MAC: Contention over Reservation MAC Protocol for Time-Critical Services in Wireless Body Area Sensor Networks

Fluoride Anion Recognition by a Multifunctional Urea Derivative: An Experimental and Theoretical Study

Dynamic Response Analysis of Microflow Electrochemical Sensors with Two Types of Elastic Membrane

Extrinsic Calibration of Camera Networks Based on Pedestrians

Interferometric Sensor of Wavelength Detuning Using a Liquid Crystalline Polymer Waveplate

A Precise Drunk Driving Detection Using Weighted Kernel Based on Electrocardiogram

Investigation of Hemoglobin/Gold Nanoparticle Heterolayer on Micro-Gap for Electrochemical Biosensor Application

Fuzzy-Based Hybrid Control Algorithm for the Stabilization of a Tri-Rotor UAV

Cubature Information SMC-PHD for Multi-Target Tracking

Feedback Robust Cubature Kalman Filter for Target Tracking Using an Angle Sensor

Quantitative Index and Abnormal Alarm Strategy Using Sensor-Dependent Vibration Data for Blade Crack Identification in Centrifugal Booster Fans

A Magnetoresistive Tactile Sensor for Harsh Environment Applications

Improved Reconstruction of Radio Holographic Signal for Forward Scatter Radar Imaging

Frequency Optimization for Enhancement of Surface Defect Classification Using the Eddy Current Technique

Development of a Near Ground Remote Sensing System

Fano Resonance Based on Metal-Insulator-Metal Waveguide-Coupled Double Rectangular Cavities for Plasmonic Nanosensors

Reliability of Sleep Measures from Four Personal Health Monitoring Devices Compared to Research-Based Actigraphy and Polysomnography

Damage Detection Based on Power Dissipation Measured with PZT Sensors through the Combination of Electro-Mechanical Impedances and Guided Waves

A Reliable Wireless Control System for Tomato Hydroponics

Large Out-of-Plane Displacement Bistable Electromagnetic Microswitch on a Single Wafer

Performance Analysis of ICA in Sensor Array

An Integrated Simulation Module for Cyber-Physical Automation Systems

Machine Learning and Computer Vision System for Phenotype Data Acquisition and Analysis in Plants

Electrochemical Detection of Hydrazine Using Poly(dopamine)-Modified Electrodes

On the Feasibility of Wireless Multimedia Sensor Networks over IEEE 802.15.5 Mesh Topologies

3D Visual Data-Driven Spatiotemporal Deformations for Non-Rigid Object Grasping Using Robot Hands

Rapid Multi-Damage Identification for Health Monitoring of Laminated Composites Using Piezoelectric Wafer Sensor Arrays

Nitrogen-Doped Carbon Dots as A New Substrate for Sensitive Glucose Determination

Performance Comparison of Fuzzy ARTMAP and LDA in Qualitative Classification of Iranian Rosa damascena Essential Oils by an Electronic Nose

BDS/GPS Dual Systems Positioning Based on the Modified SR-UKF Algorithm

Automatic Recognition of Aggressive Behavior in Pigs Using a Kinect Depth Sensor

Multi-Mode Electromagnetic Ultrasonic Lamb Wave Tomography Imaging for Variable-Depth Defects in Metal Plates

Tracking Architecture Based on Dual-Filter with State Feedback and Its Application in Ultra-Tight GPS/INS Integration

Implementation Strategies for a Universal Acquisition and Tracking Channel Applied to Real GNSS Signals

A Rapid In Situ Colorimetric Assay for Cobalt Detection by the Naked Eye

In Situ Representation of Soil/Sediment Conductivity Using Electrochemical Impedance Spectroscopy

3-D Imaging Systems for Agricultural Applications—A Review

A New Methodology for 3D Target Detection in Automotive Radar Applications

Effective Sensor Selection and Data Anomaly Detection for Condition Monitoring of Aircraft Engines

An Improved Alignment Method for the Strapdown Inertial Navigation System (SINS)

Analysis and Calibration of Sources of Electronic Error in PSD Sensor Response

A Magnetic Field Sensor Based on a Magnetic Fluid-Filled FP-FBG Structure

A Small Acoustic Goniometer for General Purpose Research

Exponential Arithmetic Based Self-Healing Group Key Distribution Scheme with Backward Secrecy under the Resource-Constrained Wireless Networks

A Flexible Fringe Projection Vision System with Extended Mathematical Model for Accurate Three-Dimensional Measurement

Self-Sensing Composites: In-Situ Detection of Fibre Fracture

Assistant Personal Robot (APR): Conception and Application of a Tele-Operated Assisted Living Robot

Optimal Design of a Center Support Quadruple Mass Gyroscope (CSQMG)

Quaternion-Based Gesture Recognition Using Wireless Wearable Motion Capture Sensors

Photon Counting Imaging with an Electron-Bombarded Pixel Image Sensor

Traffic Congestion Detection System through Connected Vehicles and Big Data

Logarithmic Laplacian Prior Based Bayesian Inverse Synthetic Aperture Radar Imaging

Guidelines for Designing Surface Ion Traps Using the Boundary Element Method

The DEPFET Sensor-Amplifier Structure: A Method to Beat 1/f Noise and Reach Sub-Electron Noise in Pixel Detectors

Numerical Simulation of Output Response of PVDF Sensor Attached on a Cantilever Beam Subjected to Impact Loading

An Embedded Sensor Node Microcontroller with Crypto-Processors

Sorption and Diffusion of Water Vapor and Carbon Dioxide in Sulfonated Polyaniline as Chemical Sensing Materials

Theoretical Design of a Depolarized Interferometric Fiber-Optic Gyroscope (IFOG) on SMF-28 Single-Mode Standard Optical Fiber Based on Closed-Loop Sinusoidal Phase Modulation with Serrodyne Feedback Phase Modulation Using Simulation Tools for Tactical and Industrial Grade Applications

Prediction of the Strain Response of Poly-AlN/(100)Si Surface Acoustic Wave Resonator and Experimental Analysis

Search Techniques for the Web of Things: A Taxonomy and Survey

Hydrophobin-Based Surface Engineering for Sensitive and Robust Quantification of Yeast Pheromones

Streetlight Control System Based on Wireless Communication over DALI Protocol

Smartphone-Based Indoor Localization with Bluetooth Low Energy Beacons

Enhanced Tissue Ablation Efficiency with a Mid-Infrared Nonlinear Frequency Conversion Laser System and Tissue Interaction Monitoring Using Optical Coherence Tomography

Robust Stability of Scaled-Four-Channel Teleoperation with Internet Time-Varying Delays

A Comparative Analysis of Machine Learning with WorldView-2 Pan-Sharpened Imagery for Tea Crop Mapping

Static and Wind-on Performance of Polymer-Based Pressure-Sensitive Paints Using Platinum and Ruthenium as the Luminophore

Remote Evaluation of Rotational Velocity Using a Quadrant Photo-Detector and a DSC Algorithm

Sleep Monitoring Based on a Tri-Axial Accelerometer and a Pressure Sensor

Content Provider	MDPI
Author	Nam, Yunyoung Kim, Yeesock Lee, Jinseok
Abstract	Sleep disorders are a common affliction for many people even though sleep is one of the most important factors in maintaining good physiological and emotional health. Numerous researchers have proposed various approaches to monitor sleep, such as polysomnography and actigraphy. However, such approaches are costly and often require overnight treatment in clinics. With this in mind, the research presented here has emerged from the question: “Can data be easily collected and analyzed without causing discomfort to patients?” Therefore, the aim of this study is to provide a novel monitoring system for quantifying sleep quality. The data acquisition system is equipped with multimodal sensors, including a three-axis accelerometer and a pressure sensor. To identify sleep quality based on measured data, a novel algorithm, which uses numerous physiological parameters, was proposed. Such parameters include non-REM sleep time, the number of apneic episodes, and sleep durations for dominant poses. To assess the effectiveness of the proposed system, three participants were enrolled in this experimental study for a duration of 20 days. From the experimental results, it can be seen that the proposed monitoring system is effective for quantifying sleep quality.
File Size	5248000
File Format	PDF
e-ISSN	14248220
DOI	10.3390/s16050750
Journal	Sensors
Issue Number	5
Volume Number	16
Language	English
Publisher Date	2016-05-23
Access Restriction	Open
Subject Keyword	health care sleep monitoring sleep apnea pressure sensor heart rate variability breathing sleeping pose polysomnography
Content Type	Text
Resource Type	Article

Central Library (ISO-9001:2015 Certified)
Indian Institute of Technology Kharagpur
Kharagpur, West Bengal, India | PIN - 721302

See location in the Map
03222 282435
Mail: support@ndl.gov.in

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in