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When firefighters enter a smoke-filled building, the command center wants to know if they are breathing so they can decide to send in a rescue team. We need to measure ventilation from a miniature device on an expandable chest strap and wirelessly transmit to the command center outside.
From left to right: Padraic Casserly, Joey Labuz, Andrew Dias, Joel Webb
Team member Joey Labuz wearing the chest strap
Schematic representation of final design
Working prototype has been completed.
| Week | Reporting Period Beginning | Activities |
|---|---|---|
| 1 | January 25 | Background research- current systems on market, inductance plethysmography, data transmitters |
| 2 | February 1 | Narrow focus of research to materials, specifically fabrics and wires that would be used in any design |
| 3 | February 8 | Buy materials like fabric and wires and work on designs |
| 4 | February 15 | Visit sleep apnea lab, finalize design/ design matrix, prepare powerpoint for presentation |
| 5 | February 22 | Draw designs in CAD and PSPICE, finalize designs and design matrix, choose design, finish midsemester presentation |
| 6 | February 29 | Midsemester report, finish report, finalize list of materials to order, and possibly order materials |
| 7 | March 7 | Research circuit components, enjoy spring break |
| 8 | March 14 | Spring Break |
| 9 | March 21 | Build chest strap, talk to Burke O’Neal and order circuit components, begin constructing circuit |
| 10 | March 28 | Attach Velcro to chest strap, test oscillator circuit, order frequency to voltage converter |
| 11 | April 4 | Debug circuits, test oscillator, decide which circuit we plan on using, complete chest strap |
| 12 | April 11 | Talk with Justin about the possibility of using his circuit design, order a 2N-2222 BJT which is in some oscillator schematics |
| 13 | April 18 | Order frequency to voltage chip, complete poster and rehearse presentation |
| 14 | April 25 | Continue trying to obtain voltage signal from frequency output of Colpitts oscillator in a usable waveform, present poster |
| 15 | May 2 | Completed poster presentation, final report, and working prototype |
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Midsemester PowerPoint Presentation (Mar 6 2008, 536 kb) |
 |
Project Design Specifications (Mar 9 2008, 58 kb) |
|
Midsemester Report (Mar 11 2008, 349 kb) |
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Presentation Poster (Jun 17 2008, 661 kb) |
|
Final Report (Jun 17 2008, 388 kb) |
