LabVIEW%20Data%20Acquisition%20and%20Analysis%20Electrocardiogram%20and%20Muscle%20Sympathetic%20Nervous%20Activity - PowerPoint PPT Presentation

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LabVIEW%20Data%20Acquisition%20and%20Analysis%20Electrocardiogram%20and%20Muscle%20Sympathetic%20Nervous%20Activity

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LabVIEW Data Acquisition and Analysis Electrocardiogram and Muscle Sympathetic Nervous Activity Jennifer Britton Advisor: Richard Shiavi Biomedical Engineering – PowerPoint PPT presentation

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Title: LabVIEW%20Data%20Acquisition%20and%20Analysis%20Electrocardiogram%20and%20Muscle%20Sympathetic%20Nervous%20Activity


1
LabVIEW Data Acquisition and Analysis Electrocard
iogram and Muscle Sympathetic Nervous Activity
  • Jennifer Britton
  • Advisor Richard Shiavi
  • Biomedical Engineering
  • Vanderbilt University

2
Project Definition
  • The goal of this project is to improve and test
    the existing LabVIEW data acquistion system used
    by Dr. Steve Davis's Lab in the Clinical Research
    Center to record electrocardiograms according to
    desired specifications. In addition, data
    analysis of the acquired data will be conducted
    using MatLab.

3
Objective
  • Upgrade LabVIEW to version 5.0
  • Compartmentalize the data into fifteen-minute
    segments and save the data in separate files
  • Maintain the ability to save the data in a new
    file at any point during acquisition
  • Automatically save the files with date as part of
    the filename using a standard format
  • Provide user-control to display a specified
    number of charts with desired maximum and minimum
    limits

4
Design Methodology
Observe Exercise Study
Examine Existing Program
Create Mock-solutions
Test Mock Solutions
Incorporate devised solutions into program
Test Program
Conduct Analysis
5
Equipment
  • Pentium, Windows 95 Micron Computer
  • LabVIEW 5.0
  • AT-MIO-16-E-1 Data Acquisition Board
  • Virtual Instrument constructed in LabVIEW
  • Gould Machine
  • Function Generator (for testing purposes only)
  • CD Writer and Network Connection

6
Front Panel of Program
7
Inputs and Outputs
  • Inputs Scan Rate (300 scans/second) Inpu
    t Channel to DAQ board Acquisition (Yes or
    No?) Binary or ASCII storage format
  • Outputs ECG waveform Compartmentalized
    data files

8
Diagram Window
9
Current Status
  • Observed an exercise study
  • Tested current system with a function generator
  • Upgraded system to LabVIEW 5.0
  • Created and tested simple mock-program solutions
  • Incorporated these solutions into the existing
    program
  • Currently, testing and debugging the program

10
Current Dilemmas
  • Using execution highlighting produces the desired
    result however, when executing the program under
    normal circumstances, the program will not
    compartmentalize the data.
  • Proposed Solution Contact National Instruments
    for advice.

11
Future Plans
  • Debug the program until it behaves according to
    specifications
  • Test program with Gould machine
  • Conduct data analysis on existing files
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