Sleep Apnea Monitoring and Alarm System Prepared by Jiayuan Wang Ying Zhou Renyuan Cheng.
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Transcript of Sleep Apnea Monitoring and Alarm System Prepared by Jiayuan Wang Ying Zhou Renyuan Cheng.
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Sleep Apnea Monitoring and Alarm System
Prepared by Jiayuan Wang Ying Zhou Renyuan Cheng
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DescriptionSleep 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).
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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.
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Current solutionFor monitoring purpose, most of the modern monitoring facilities are not portable enough for patients.
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Air Pressure Sensor
+ KC-111 Bluetooth Module
+ MSP430
+ Android 2.1 Phone
What we did with MPS430
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What we did arduino
Airflow Sensor
+ Bluetooth Module
+ Arduino
+ Smartphones
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Framework
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Hardware: Part 1
Pressure Sensor MPXV7002
MSP430F149
KCWirefree KC-111
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Freescale Integrated Silicon Pressure Sensor MPXV7002
Sensitivity: 1.0 V/kPa
Accuracy: ±2.5 %VFSS
Response Time: 1.0ms
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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
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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
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Hardware: Part 2 Pressure Sensor MPXV7002
Analog Filter
Sparkfun BlueSMiRF Bluetooth Module
Arduino Uno
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Sensitivity: 1.0 V/kPa
Accuracy: ±2.5 %VFSS
Response Time: 1.0ms
Pressure Sensor MPXV7002
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Analog Filter•Capacitor: 470uF
•Inductor: 4.7uH
•Cutoff frequency: 2.7kHZ
Input Output
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Sparkfun BlueSMiRF Bluetooth Module
•Transmission Distance: 100m
•Power Consumption : 25mA avg
•Operating Voltage: 3.3V-6V
•Serial Communications: 2400-115200bps
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Arduino ATmega32814 digital I/O pins6 analog inputs,a 16 MHz crystal oscillator5V & 3.3V Power Supply
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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
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User Interface
• main menu:
a. Contact List
b. Monitor Graph
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Breathing Pattern Graphing
Disoder Breathing Alarming
Stop breathing more than 10secs
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Q&A