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Real Time Design and Implementation of Brushless DC Motor Drive based Continuous Positive Airway Pressure (CPAP) based Respirator System for Patients with Chronic Obstructive Pulmonary Diseases (COPD)

Published on December 2015 by Arunabha Mitra, Debjyoti Chowdhury, and Madhurima Chattopadhyay
International Conference on Microelectronic Circuit and System
Foundation of Computer Science USA
MICRO2015 - Number 1
December 2015
Authors: Arunabha Mitra, Debjyoti Chowdhury, and Madhurima Chattopadhyay
003c468a-b02f-4553-9f65-63945fb5c4c1

Arunabha Mitra, Debjyoti Chowdhury, and Madhurima Chattopadhyay . Real Time Design and Implementation of Brushless DC Motor Drive based Continuous Positive Airway Pressure (CPAP) based Respirator System for Patients with Chronic Obstructive Pulmonary Diseases (COPD). International Conference on Microelectronic Circuit and System. MICRO2015, 1 (December 2015), 46-50.

@article{
author = { Arunabha Mitra, Debjyoti Chowdhury, and Madhurima Chattopadhyay },
title = { Real Time Design and Implementation of Brushless DC Motor Drive based Continuous Positive Airway Pressure (CPAP) based Respirator System for Patients with Chronic Obstructive Pulmonary Diseases (COPD) },
journal = { International Conference on Microelectronic Circuit and System },
issue_date = { December 2015 },
volume = { MICRO2015 },
number = { 1 },
month = { December },
year = { 2015 },
issn = 0975-8887,
pages = { 46-50 },
numpages = 5,
url = { /proceedings/micro2015/number1/23706-1744/ },
publisher = {Foundation of Computer Science (FCS), NY, USA},
address = {New York, USA}
}
%0 Proceeding Article
%1 International Conference on Microelectronic Circuit and System
%A Arunabha Mitra
%A Debjyoti Chowdhury
%A and Madhurima Chattopadhyay
%T Real Time Design and Implementation of Brushless DC Motor Drive based Continuous Positive Airway Pressure (CPAP) based Respirator System for Patients with Chronic Obstructive Pulmonary Diseases (COPD)
%J International Conference on Microelectronic Circuit and System
%@ 0975-8887
%V MICRO2015
%N 1
%P 46-50
%D 2015
%I International Journal of Computer Applications
Abstract

This paper aims at designing a cost-effective, portable and easy-to-use brushless DC (BLDC) motor driven continuous positive airway pressure (CPAP) based respirator for patients with acute breathing trouble. The proposed system is intended to facilitate continuous monitoring of patient's condition with positive airway support provided by a brushless DC (BLDC) motor driven respirator blower fan by measuring Respiration Rate (RR). To measure the respiration rate, a pair of capacitive type respiration rate sensors are mounted below Right Nostril (RN) and Left Nostril (LN), in such a way that the nasal airflow during inspiration and expiration impinge on the sensor diaphragms directly. Due to irregularities in nasal airflow in some respiratory diseases, the respiration rate (RR) varies from the normal rate (12-20). Thus, a supporting airflow regulatory system has been designed to reduce abnormalities in respiration rate (RR). In this case a low cost sensorless commutated BLDC drive is implemented with a three phase inverter and microcontroller by using feedback of rotor rpm. A suitable cost effective algorithm has also been developed to generate an appropriate six transistor switching sequence to commute the BLDC motor according to the RR of the subject. The characteristics of the implemented drive give satisfactory outputs over a wide range of controlled speed variation from 200 to 2440 rpm which requires a match with the patient's breathing demand. The effectiveness of the designed system is populated by the real time experimental results.

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Index Terms

Computer Science
Information Sciences

Keywords

Positive Airway Respirator Blower Fan Brushless Dc Motor Respiration Rate Chronic Obstructive Pulmonary Diseases.