heartaware - mitweb.mit.edu/.../holachek_project_design_presentation.pdf · 2015-11-12 · beats...
TRANSCRIPT
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6.111 Final Project, Fall 2015Michael Holachek and Nalini Singh
HeartAwarepulse oximetry system
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HeartAware M. Holachek, N. Singh6.111 Fall 2015Motivation
● Develop variety of skills involved in FPGA design
● Explore medical applications
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HeartAware M. Holachek, N. Singh6.111 Fall 2015System at a Glance
![Page 4: HeartAware - MITweb.mit.edu/.../holachek_Project_Design_Presentation.pdf · 2015-11-12 · beats per minute” SD card storage of voice samples hr_pulse hr_number audio mixer volume](https://reader034.vdocuments.us/reader034/viewer/2022050408/5f84c7b269597309140a03db/html5/thumbnails/4.jpg)
HeartAware M. Holachek, N. Singh6.111 Fall 2015System at a Glance
signal processing
pulse oximeter
analog control
display
audio
![Page 5: HeartAware - MITweb.mit.edu/.../holachek_Project_Design_Presentation.pdf · 2015-11-12 · beats per minute” SD card storage of voice samples hr_pulse hr_number audio mixer volume](https://reader034.vdocuments.us/reader034/viewer/2022050408/5f84c7b269597309140a03db/html5/thumbnails/5.jpg)
HeartAware M. Holachek, N. Singh6.111 Fall 2015System at a Glance
signal processing
pulse oximeter
analog control
display
audio
![Page 6: HeartAware - MITweb.mit.edu/.../holachek_Project_Design_Presentation.pdf · 2015-11-12 · beats per minute” SD card storage of voice samples hr_pulse hr_number audio mixer volume](https://reader034.vdocuments.us/reader034/viewer/2022050408/5f84c7b269597309140a03db/html5/thumbnails/6.jpg)
Figures courtesy Freescale “Pulse Oximeter Fundamentals and Design”
HeartAware M. Holachek, N. Singh6.111 Fall 2015Pulse Oximetry
![Page 7: HeartAware - MITweb.mit.edu/.../holachek_Project_Design_Presentation.pdf · 2015-11-12 · beats per minute” SD card storage of voice samples hr_pulse hr_number audio mixer volume](https://reader034.vdocuments.us/reader034/viewer/2022050408/5f84c7b269597309140a03db/html5/thumbnails/7.jpg)
Figures courtesy Freescale “Pulse Oximeter Fundamentals and Design”
HeartAware M. Holachek, N. Singh6.111 Fall 2015Pulse Oximetry
![Page 8: HeartAware - MITweb.mit.edu/.../holachek_Project_Design_Presentation.pdf · 2015-11-12 · beats per minute” SD card storage of voice samples hr_pulse hr_number audio mixer volume](https://reader034.vdocuments.us/reader034/viewer/2022050408/5f84c7b269597309140a03db/html5/thumbnails/8.jpg)
Figures courtesy Freescale “Pulse Oximeter Fundamentals and Design”
HeartAware M. Holachek, N. Singh6.111 Fall 2015Pulse Oximetry
![Page 9: HeartAware - MITweb.mit.edu/.../holachek_Project_Design_Presentation.pdf · 2015-11-12 · beats per minute” SD card storage of voice samples hr_pulse hr_number audio mixer volume](https://reader034.vdocuments.us/reader034/viewer/2022050408/5f84c7b269597309140a03db/html5/thumbnails/9.jpg)
HeartAware M. Holachek, N. Singh6.111 Fall 2015Pulse Oximetry
![Page 10: HeartAware - MITweb.mit.edu/.../holachek_Project_Design_Presentation.pdf · 2015-11-12 · beats per minute” SD card storage of voice samples hr_pulse hr_number audio mixer volume](https://reader034.vdocuments.us/reader034/viewer/2022050408/5f84c7b269597309140a03db/html5/thumbnails/10.jpg)
HeartAware M. Holachek, N. Singh6.111 Fall 2015System at a Glance
signal processing
pulse oximeter
analog control
display
audio
![Page 11: HeartAware - MITweb.mit.edu/.../holachek_Project_Design_Presentation.pdf · 2015-11-12 · beats per minute” SD card storage of voice samples hr_pulse hr_number audio mixer volume](https://reader034.vdocuments.us/reader034/viewer/2022050408/5f84c7b269597309140a03db/html5/thumbnails/11.jpg)
HeartAware M. Holachek, N. Singh6.111 Fall 2015System at a Glance
signal processing
pulse oximeter
analog control
display
audio
![Page 12: HeartAware - MITweb.mit.edu/.../holachek_Project_Design_Presentation.pdf · 2015-11-12 · beats per minute” SD card storage of voice samples hr_pulse hr_number audio mixer volume](https://reader034.vdocuments.us/reader034/viewer/2022050408/5f84c7b269597309140a03db/html5/thumbnails/12.jpg)
HeartAware M. Holachek, N. Singh6.111 Fall 2015Analog Circuitry
Pulse oximeter analog driving circuitry designed by Prof. Hom
pulse ox
![Page 13: HeartAware - MITweb.mit.edu/.../holachek_Project_Design_Presentation.pdf · 2015-11-12 · beats per minute” SD card storage of voice samples hr_pulse hr_number audio mixer volume](https://reader034.vdocuments.us/reader034/viewer/2022050408/5f84c7b269597309140a03db/html5/thumbnails/13.jpg)
HeartAware M. Holachek, N. Singh6.111 Fall 2015Analog Circuitry
Pulse oximeter analog driving circuitry designed by Prof. Hom
driving circuitry
pulse ox
![Page 14: HeartAware - MITweb.mit.edu/.../holachek_Project_Design_Presentation.pdf · 2015-11-12 · beats per minute” SD card storage of voice samples hr_pulse hr_number audio mixer volume](https://reader034.vdocuments.us/reader034/viewer/2022050408/5f84c7b269597309140a03db/html5/thumbnails/14.jpg)
HeartAware M. Holachek, N. Singh6.111 Fall 2015Analog Circuitry
Pulse oximeter analog driving circuitry designed by Prof. Hom
driving circuitry filtering op-amp
pulse ox
![Page 15: HeartAware - MITweb.mit.edu/.../holachek_Project_Design_Presentation.pdf · 2015-11-12 · beats per minute” SD card storage of voice samples hr_pulse hr_number audio mixer volume](https://reader034.vdocuments.us/reader034/viewer/2022050408/5f84c7b269597309140a03db/html5/thumbnails/15.jpg)
HeartAware M. Holachek, N. Singh6.111 Fall 2015Analog Circuitry
Pulse oximeter analog driving circuitry designed by Prof. Hom
driving circuitry filtering op-amp ADC
pulse ox
![Page 16: HeartAware - MITweb.mit.edu/.../holachek_Project_Design_Presentation.pdf · 2015-11-12 · beats per minute” SD card storage of voice samples hr_pulse hr_number audio mixer volume](https://reader034.vdocuments.us/reader034/viewer/2022050408/5f84c7b269597309140a03db/html5/thumbnails/16.jpg)
HeartAware M. Holachek, N. Singh6.111 Fall 2015Analog Circuitry
Pulse oximeter analog driving circuitry designed by Prof. Hom
driving circuitry filtering op-amp ADC
nexys 4pulse ox
![Page 17: HeartAware - MITweb.mit.edu/.../holachek_Project_Design_Presentation.pdf · 2015-11-12 · beats per minute” SD card storage of voice samples hr_pulse hr_number audio mixer volume](https://reader034.vdocuments.us/reader034/viewer/2022050408/5f84c7b269597309140a03db/html5/thumbnails/17.jpg)
HeartAware M. Holachek, N. Singh6.111 Fall 2015Analog Circuitry
custom HeartAware PCB
![Page 18: HeartAware - MITweb.mit.edu/.../holachek_Project_Design_Presentation.pdf · 2015-11-12 · beats per minute” SD card storage of voice samples hr_pulse hr_number audio mixer volume](https://reader034.vdocuments.us/reader034/viewer/2022050408/5f84c7b269597309140a03db/html5/thumbnails/18.jpg)
HeartAware M. Holachek, N. Singh6.111 Fall 2015System at a Glance
signal processing
pulse oximeter
analog control
display
audio
![Page 19: HeartAware - MITweb.mit.edu/.../holachek_Project_Design_Presentation.pdf · 2015-11-12 · beats per minute” SD card storage of voice samples hr_pulse hr_number audio mixer volume](https://reader034.vdocuments.us/reader034/viewer/2022050408/5f84c7b269597309140a03db/html5/thumbnails/19.jpg)
HeartAware M. Holachek, N. Singh6.111 Fall 2015System at a Glance
signal processing
pulse oximeter
analog control
display
audio
![Page 20: HeartAware - MITweb.mit.edu/.../holachek_Project_Design_Presentation.pdf · 2015-11-12 · beats per minute” SD card storage of voice samples hr_pulse hr_number audio mixer volume](https://reader034.vdocuments.us/reader034/viewer/2022050408/5f84c7b269597309140a03db/html5/thumbnails/20.jpg)
HeartAware M. Holachek, N. Singh6.111 Fall 2015Signal Processing
mVNoisy Input Signal
Time(s)
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HeartAware M. Holachek, N. Singh6.111 Fall 2015Signal Processing
mV
mV
Noisy Input Signal
Filtered Input Signal
Time(s)
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HeartAware M. Holachek, N. Singh6.111 Fall 2015Signal Processing
Time(s)m
Vm
Vm
V2 /s
Noisy Input Signal
Filtered Input Signal
Squared Derivative
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HeartAware M. Holachek, N. Singh6.111 Fall 2015Signal Processing
Time(s)
mV
mV
mV2 /s
mV2
Noisy Input Signal
Filtered Input Signal
Squared Derivative
Window Integration
![Page 24: HeartAware - MITweb.mit.edu/.../holachek_Project_Design_Presentation.pdf · 2015-11-12 · beats per minute” SD card storage of voice samples hr_pulse hr_number audio mixer volume](https://reader034.vdocuments.us/reader034/viewer/2022050408/5f84c7b269597309140a03db/html5/thumbnails/24.jpg)
HeartAware M. Holachek, N. Singh6.111 Fall 2015System at a Glance
signal processing
pulse oximeter
analog control
display
audio
![Page 25: HeartAware - MITweb.mit.edu/.../holachek_Project_Design_Presentation.pdf · 2015-11-12 · beats per minute” SD card storage of voice samples hr_pulse hr_number audio mixer volume](https://reader034.vdocuments.us/reader034/viewer/2022050408/5f84c7b269597309140a03db/html5/thumbnails/25.jpg)
HeartAware M. Holachek, N. Singh6.111 Fall 2015System at a Glance
signal processing
pulse oximeter
analog control
display
audio
![Page 26: HeartAware - MITweb.mit.edu/.../holachek_Project_Design_Presentation.pdf · 2015-11-12 · beats per minute” SD card storage of voice samples hr_pulse hr_number audio mixer volume](https://reader034.vdocuments.us/reader034/viewer/2022050408/5f84c7b269597309140a03db/html5/thumbnails/26.jpg)
HeartAware M. Holachek, N. Singh6.111 Fall 2015Display Output
● Current heart rate
● Smoothed oxygen saturation waveform
![Page 27: HeartAware - MITweb.mit.edu/.../holachek_Project_Design_Presentation.pdf · 2015-11-12 · beats per minute” SD card storage of voice samples hr_pulse hr_number audio mixer volume](https://reader034.vdocuments.us/reader034/viewer/2022050408/5f84c7b269597309140a03db/html5/thumbnails/27.jpg)
HeartAware M. Holachek, N. Singh6.111 Fall 2015System at a Glance
signal processing
pulse oximeter
analog control
display
audio
![Page 28: HeartAware - MITweb.mit.edu/.../holachek_Project_Design_Presentation.pdf · 2015-11-12 · beats per minute” SD card storage of voice samples hr_pulse hr_number audio mixer volume](https://reader034.vdocuments.us/reader034/viewer/2022050408/5f84c7b269597309140a03db/html5/thumbnails/28.jpg)
HeartAware M. Holachek, N. Singh6.111 Fall 2015System at a Glance
signal processing
pulse oximeter
analog control
display
audio
![Page 29: HeartAware - MITweb.mit.edu/.../holachek_Project_Design_Presentation.pdf · 2015-11-12 · beats per minute” SD card storage of voice samples hr_pulse hr_number audio mixer volume](https://reader034.vdocuments.us/reader034/viewer/2022050408/5f84c7b269597309140a03db/html5/thumbnails/29.jpg)
HeartAware M. Holachek, N. Singh6.111 Fall 2015Audio Output
beep440Hz frequency100ms duration
announcerannounces “40-199 beats per minute”
SD cardstorage of voice
samples
hr_pulse
hr_number audio mixervolume controls
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HeartAware M. Holachek, N. Singh6.111 Fall 2015System Block Diagram
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HeartAware M. Holachek, N. Singh6.111 Fall 2015Top Level Finite State Machine
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HeartAware M. Holachek, N. Singh6.111 Fall 2015Potential Issues
● Signal variations
● RAM sizes / buffering
● Clear VGA graphics
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HeartAware M. Holachek, N. Singh6.111 Fall 2015Timeline
Week 10/26
Week 11/2
Week 11/9
Week 11/16
Week 11/23
Week 11/30
Week 12/7
Project Proposal & Requirements Both
Analog Circuitry & PCB Michael
Signal Processing Nalini
Display Output Both
Audio Output Michael
Integration & Testing Both
Alternate Filters Nalini
UI Improvements, Night Mode Michael
Final Testing & Buffer Both