Sleep Apnea Monitoring and Alarm System Prepared by Jiayuan Wang Ying Zhou Renyuan Cheng

Description Sleep Apnea is defined as the cessation of breathing during sleep. According to the World Health Organization, approximately 100 million people worldwide have Obstructive Sleep Apnea (OSA).

Disease harm (in United States) Approximately 4% of men over 35 years old have severe sleep apnea. Approximately 2% of women over 35 years old have severe sleep apnea.

Current solution For monitoring purpose, most of the modern monitoring facilities are not portable enough for patients.

Air Pressure Sensor + KC-111 Bluetooth Module + MSP430 + Android 2.1 Phone What we did with MPS430

What we did arduino Airflow Sensor + Bluetooth Module + Arduino + Smartphones

Framework

Hardware: Part 1 Pressure Sensor MPXV7002 MSP430F149 KCWirefree KC-111

Freescale Integrated Silicon Pressure Sensor MPXV7002 Sensitivity: 1.0 V/kPa Accuracy: ±2.5 %VFSS Response Time: 1.0ms

OLIMEX MSP430-H2618 development board - Low Supply Voltage Range, 1.8 V to 3.6 V - Ultra-Low Power Consumption: Active Mode: 365 μA at 1 MHz, 2.2 V Standby Mode: 0.5 μA - 12-Bit Analog-to-Digital (A/D) Converter With Internal Reference 3.3V

KCWirefree KC-111 Bluetooth Module ► High-performance connections up to 200m ► High-security 128-bit encryption ► High-speed data rates up to 921K baud ► Supports SPP - Bluetooth Serial Port Profile

Hardware: Part 2 Pressure Sensor MPXV7002 Analog Filter Sparkfun BlueSMiRF Bluetooth Module Arduino Uno

Sensitivity: 1.0 V/kPa Accuracy: ±2.5 %VFSS Response Time: 1.0ms Pressure Sensor MPXV7002

Analog Filter Capacitor: 470uF Inductor: 4.7uH Cutoff frequency: 2.7kHZ InputOutput

Sparkfun BlueSMiRF Bluetooth Module Transmission Distance: 100m Power Consumption : 25mA avg Operating Voltage: 3.3V-6V Serial Communications: bps

Arduino ATmega digital I/O pins 6 analog inputs, a 16 MHz crystal oscillator 5V & 3.3V Power Supply

Software ‧ Sensor's Part (C for Arduino) a.data acquisition b.data preparation c.data transmission ‧ Mobile Device's Part (JAVA for Android) a.data receiving and processing b.Alert and message sending

User Interface main menu: a. Contact List b. Monitor Graph

Breathing Pattern GraphingDisoder Breathing Alarming Stop breathing more than 10secs

Q&A