1. PDR ECE 415 Team Advisor: Professor Marinos Vouvakis Douglas Imbier EE Team Leader Edmons Zongo EE Treasurer Nicholas Ferrero EE Website Administrator Matthew Picard EE Purchaser Clean H2O

2. 2 PDR ECE 415 Agenda  Problem statement  Solution  Design  Deliverables

3. 3 PDR ECE 415  Measure pH, salinity, temperature of liquids  Inexpensive  Reliability  Easy to use What is the problem?

4. 4 PDR ECE 415 Why is it important?  New water: Undeveloped countries need to test water for usability  Maintenance of existing water: Swimming pools Reservoirs Rivers  Personal Use: Wine fermentation Beer brewing Alcohol distillation

5. 5 PDR ECE 415 What has been done?  Individual sensing devices Salinity $493.00 pH $97.21 Temperature $4.36  Integrated devices for expert / industrial use Cole Parmer:pH, Salinity, Temp, Conductivity $1075.00  High cost/maintenance lead to rentals

6. 6 PDR ECE 415 What needs to be done?  Affordable device for personal use  Integrates multiple sensing (pH, salinity, etc.)  Simplicity  Portability  Data Log capabilities

7. 7 PDR ECE 415 Design 1 (USB)

8. 8 PDR ECE 415 USB Block Diagram

9. 9 PDR ECE 415 Design 2 (Blue Tooth + Cell phone)

10. 10 PDR ECE 415 Blue Tooth + Cell Phone Block Diagram

11. 11 PDR ECE 415 Design 3 (ZigBee + Computer)

12. 12 PDR ECE 415 ZigBee + Computer Block Diagram

13. 13 PDR ECE 415 Proposed Design Costs Design #1(USB)Design #2(BT+Cell)Design #3(ZigBee+PC) Printed Circuit Board$47.50 Ph Sensor$92.00 Temperature Sensor$29.00 Salinity$79.00 Microcontroller$0.00 Display$49.95 Memory$0.00 BluetoothNA$35.95NA ZigBeeNA $99.95 Battery$14.95 Total:$312.40$348.35$412.35 Budget$500.00 Budget Surplus$187.60$151.65$87.65

14. 14 PDR ECE 415 Specifications Society NeedsEngineering ConstraintsFinal Product Battery9V rechargeable, > 3 months9 Volt 325maH NiMH Memory 36 bits X 325 hours X 60 mins X 60 sec / 5 = 8.5 MegabytesN/A1 Gigabyte Temp (min/max) 0 deg/100 deg -25 deg/125 deg pH (min/max) 0/14 pH Salinity (min/max) 0/50,000 ppm Temp (accuracy)1 degree + 0.01 deg<--- same pH (accuracy)0.1ph response time 90% of full reading/second<--- same Salinity (accuracy)10 ppm +1% of a reading<--- same ZigBeeInfinite100 meters Blue ToothInfinite10 meters

15. 15 PDR ECE 415 Technical challenges  Integrate multiple sensors  Wireless connection (high data volume)  Data processing (Fourier & statistical analysis)  Stay below budget (parts break!!)

16. 16 PDR ECE 415 MDR Deliverables  Bread board USB design prototype  Integrate multiple sensors to the microcontroller  Rudimentary Matlab signal processing

17. 17 PDR ECE 415 Demo Day Deliverables Hardware:  Integrated handheld device  USB functionality  Wireless connectivity Software:  Signal processing using Matlab  Microcontroller programmed using Verilog Suggested Demo:  Show functionality by testing controlled samples

18. 18 PDR ECE 415 Team member roles Team MemberMajorAdministrative rolesTechnical roles Douglas ImbierEETean ManagerWireless Communication Edmons ZongoEETreasurerSoftware Processing Nicholas FerreroEEWebsite AdministratorSoftware/Hardware Matthew PicardEEPurchaserHardware Layout

19. 19 PDR ECE 415 Gaant Chart

20. 20 PDR ECE 415 Summary  Solving the problem of expert-only single function devices  Creating a user friendly device  Multiple sensing capability  Inexpensive  Three ways of data logging

21. 21 PDR ECE 415 Q & A Thank You!