1. Revisimo Remote Vital Sign Monitor TM

2. About us Dr. Thomas Morris Advisor Cory Zywno EE Design Refining Matthew Galloway EE Design Refining Matthew Gallups EE Monitor PCB Aaron Cheeseman EE Bandage PCB Paul Jang CPE Access Control

3. Overview Problem/Solution Constraints –Technical –Practical Design Refinement Testing Plan Packaging Progress 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. Constraints

7. 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. Visual Distance The display must present data to the user at a distance of up to 3 feet. 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.

8. Practical Constraints Manufacturability The bandage must fit on the temple and the monitor must be handheld.

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

10. Constraints Progress ConstraintsProgressComments Battery LifeContinuingCalculations made. Needs testing WirelessContinuingPasses prototype. Needs testing with assembled board Temperature Precision Continuing Measurements acquired. Needs testing Alarm SystemDoneAudible from 30 feet away Visual DistanceDoneVisible at arm’s length ManufacturabilityDoneBattery size(23mm), PCB(2.75 in. - 0.9in.) PoliticalDoneThe Zigbee use 2.4GHz, this coincides with Federal standard.

11. Design Refinement

12. CC2430 sleep mode current ADC pins Temperature accuracy

13. Sleep Mode

14. Power Consumption LCD (full power)200mA LCD (low power)9mA CC2430 (Tx)30mA CC2430 (Power Mode 1)300µA CC2430 (Power Mode 2)0.4µA Monitor will sleep for 9 seconds and transmit for 1 seconds LCD will be at full power for 10 seconds before switching to low power automatically Bandage will sleep for approximately 10 seconds and transmit for a fraction of a second Monitor will draw approximately 2500mAh while the Bandage will draw 126mAh

15. ADC Pins Only three ADC pins were working correctly in May

16. ADC Pins Results P00.380 v P10.380 v P20.381 v P30.381 v P40.381 v P50.379 v P60.381 v P00.765 V P10.762 V P20.767 V P30.764 V P40.769 V P50.768 V P60.765 V P01.15 V P11.15 V P21.15 V P31.14 V P41.15 V P51.15 V P61.15 V Measured: 0.379 VMeasured: 0.754 VMeasured: 1.133 V

17. Thermistor Calibration

18. Testing Plan

19. Test Plan Battery Life Temperature Accuracy Signal Range and Strength

20. Battery Life Bandage Coin Cell battery must be tested over an entire week. Each day, the bandage will be checked several times. Monitor battery life must also be tested for longevity.

21. Temperature Accuracy Place bandage on various subjects Compare to oral, tympanic, and infrared thermometers Percent error Use data to calculate temperature correction constant

22. Signal Range and Strength Last semester, range was proven on prototype using monopole antennas New antenna range and strength must be tested Line of sight range Not line of sight range in different environments

23. Packaging Progress

24. Packaging Monitor casing PCB design –Monitor Voltage regulator Connection for CC2430 –Bandage Antenna Battery Compositors

25. Monitor Casing

26. Monitor PCB

27. Bandage PCB

28. Questions

29. References [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