1. Revisimo Remote Vital Sign Monitor TM

2. About us Dr. Thomas Morris Advisor Cory Zywno EE Coordinator Thermo- Dynamics Calibration Matthew Galloway EE Temperature Conversion Thermo- Dynamics Calibration Matthew Gallups EE Alarm Battery Life SPI Interface Aaron Cheeseman EE User Interface PCB design Battery Life Paul Jang CPE RFD SPI Interface User Interface

3. Overview Problem/Solution Constraints –Technical –Practical Testing –Hardware –Software –System Future Goals Questions

4. Problem Market (oral, tympanic, scanning) –Inaccurate & No Programmable Alarm –Difficulty of Continuously Monitoring Hospital equipment –Expensive –Mobility is Restricted –Hard to use

5. Solution What is Revisimo? –Digital wireless Thermometer Bandage Wireless Temperature Sensing Device Monitor Alarm Temperature set by the user

6. System Overview

7. Constraints

8. Technical Constraints Battery Life Revisimo must have a minimum battery life of seven days. Wireless The bandage and monitor must communicate with each other within a 100-foot radius (indoors). Alarm System The alarm must be triggered if a user defined temperature is reached. Also, the alarm must be audible from at least 30 feet away. Temperature Precision Revisimo must calculate the core body temperature within 0.5 °F. Revisimo must read temperatures within the range of 65 °F to 110 °F. Visual Distance The display must present data to the user at a distance of up to 3 feet.

9. Manufacturability The bandage must fit on the temple and the monitor must be handheld.

10. Political Revisimo must abide by Federal Communications Commission regulations and allocations of the radio spectrum (9kHz to 3THz).

11. Battery Life Current Draw (Low Power Mode): 5.1 mA Current Draw (Active Mode): 35.6 mA 4ms transfer time mA-h= 855.01+.27= 855.28 mA-h A coin cell battery of 900 mA-h to 1000 mA-h will be sufficient.

12. Hardware Testing

13. Operating Range DescriptionDisplacementPass/Fail Case 1Same Floor (Line of Site)163 FeetPass Case 2 Same Floor, 1 Hall (Non Line of Site)152 FeetPass Case 3 Same Floor, 2 Halls (Non Line of Site)59 FeetPass Case 41 Floor up (Non Line of Site)164 FeetPass Case 51 Floor up, 1 Hall (Non Line of Site)115 FeetFail Case 62 Floors Down (Non Line of Site)44 FeetPass Case 73 Floors Down (Non Line of Site)31 FeetFail

14. Alarm Audibility The alarm was tested for audibility from thirty feet away. The alarm operates at 245 Hz and approximately 3Vpp

15. Display Readability The monitor was setup three feet away from the user. The test concluded that the LCD could lucidly be seen from three feet away.

16. Software Testing

17. User Interface (UI)

18. Display

21. Temperature Calibration Measured Voltage (V)Calculated Temp (F)IR Temp (F)Thermocouple Temp (F)Calculated/IRAverage Constant 0.65495.0796.2961.01181.0288 0.6496.1899.6981.0355 0.60599.31102.31021.0301 0.586100.67104.51041.0380 Measured Voltage (V)Calculated Temp (F)IR Temp (F)Thermocouple Temp (F)Calculated/IRAverage Constant 0.67993.1396 1.03081.0415 0.6496.18100.4991.0438 0.62397.56101.81021.0434 0.60299.31104.11041.0482 Thermistor 1 Calibration Thermistor 2 Calibration

22. Digital Thermometer (F)Skin Thermistor 1 (F)Skin Thermistor 2 (F)Buried Thermistor 1 (F)Calculated Core Body Temperature (F) 98.995.5797.9691.38102.15 95.2897.9891.09102.17 95.4597.9690.95102.46 95.597.8690.93102.43 Temperature Calibration Thermal Conductivity of Bandage and Skin

23. Temperature Calibration Digital Thermometer (F) Calculated Core Body Temperature (F) Temperature Difference (F) 98.496.12.3 97.41.0 96.22.2 96.02.4 95.82.6 IR Thermometer (F)Surface Temperature 1 (F)Surface Temperature 2 (F)Difference (F) 105.0102.8104.3.7 102.5103.91.1 102.8103.91.1 102.9103.91.1 Hot Plate Results Temple Region Results

24. System Testing

25. System Tests

26. Sunny Day Case

27. Rainy Day Case

28. Future Plans Increase Temperature Accuracy Control Layer PCB –Antenna –Battery –Microcontroller Monitor PCB –Antenna –Battery –User Interface –Microcontroller

29. Questions

30. Reference [1]http://www.accesshealth.com.au/sample/107/122/Meas_Therm_Reister_ Tympanic_250_x_489_1024.jpg [2]http://ec2.images- amazon.com/images/P/B00004C8SV.01._SS400_SCLZZZZZZZ_V1057215 662_.jpg [3]http://ecx.images- amazon.com/images/I/312EW9VHJNL._SL500_AA280_.jpg [4]http://www.tmhfoundation.com/images/fundraisingobjectives_pic3.jpg [5]http://en.wikipedia.org/wiki/File:US-FCC-Seal.svg