Volume 35, Issue 4 e12270
ORIGINAL ARTICLE

Advances in multisensor information fusion: A Markov–Kalman viscosity fuzzy statistical predictor for analysis of oxygen flow, diffusion, speed, temperature, and time metrics in CPAP

James A. Rodger

Corresponding Author

James A. Rodger

MIS and Decision Sciences, Indiana University of Pennsylvania, Indiana, Pennsylvania, USA

ISDS, Hooversville, Pennsylvania, USA

Correspondence

James A. Rodger, MIS and Decision Sciences, Indiana University of Pennsylvania, 203 M ECOBIT 774 Pratt Drive, Indiana, Pennsylvania 15705, USA.

Email: [email protected]

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First published: 20 February 2018
Citations: 10

Abstract

The efficacies of continuous positive airway pressure (CPAP) are well documented in decreasing the apnoea–hypopnoea index in patients with obstructive sleep apnoea. To guarantee these efficacies, CPAP manufacturers must thoroughly test these devices to ensure the flow of oxygenated air to the patient at various temperatures during a prescribed time frame. The calculation of the percent oxygen in a “bimixture” of gas can be done by measuring the travel time of a sound wave through the gas, and the travel time is proportional to the density of the air. We utilized existing multisensor tubes that were developed to collect and measure oxygen flow, diffusion, speed, temperature, and time metrics. Then these metrics were analysed using a Markov fuzzy, statistical, artificial neural network, nearest-neighbour predictive approach to determine the interactions between these variables. An improved Kalman filter method was employed to reduce noise, increase viscosity, and obtain correct data from the CPAP system.

CONFLICTS OF INTEREST

None declared.

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