1. Smoke Notification System (SNS) Mid-Semester Presentation Senior Design 1 February 28, 2013

2. Team Members Genetrice Stevenson Electrical Engineering George Wonsley Team Leader Electrical Engineering Richard Matson Electrical Engineering Dr. Raymond Winton Team Advisor Website Hardware Design Wireless Communication PIC Programming Hardware Design Technical Documentation Debugging Technical Documentation Wireless Communication

3. Problem Solution Constraints Technical Practical Approach Progress Timeline Questions

4. Problem and Solution

5. Problem Not every individual has the ability to effectively hear the standard smoke detector signal of 3100 Hz or higher. Individuals with hearing disabilities are the target market group for the SNS.

6. Current Market Current solutions are either too expensive or do not come equipped with all suitable notifications. [1] [2] Gentex Corporation Models available with audible/visual alerts Price Range: $150-$160 Silent Call Models available in pairs: audible/vibration or audible/visual Price Range: $127-$310

7. Solution The SNS aims to address the present limitations of smoke detection systems. Two device system: central unit and alert unit. Designed to work with existing smoke detectors. Incorporates vibration and visual alerts within one product.

8. Technical and Practical Constraints

9. Technical

10. System Overview Power Supply Existing Smoke Detector Microphone Wireless Transmitter Microcontroller Power Supply Wireless Receiver MotorStrobe Light Central UnitAlert Unit

11. Practical Dimensions of the central unit will not exceed 5” x 5” x 3”. Takes up the least amount of space possible Ensures all components fit properly inside the package Alert units will be slightly larger than the standard night- light. Manufacturability : Product Size

12. Practical The SNS must be user friendly and easy to operate. No training or extensive labor to install No maintenance (ex: battery changes) Simply plug both units into wall outlet Usability : Customer Convenience

13. Approach

14. Wireless Communication NameModelRangePriceChoice Synapse RF Module RF100pD6 1000 feet (305 m) $44.33 Xbee 1mW Chip Antenna Series 1 (802.15.4) 100 feet (30 m) $19.95

15. Microphone ADMP401 Omni-directional High Signal-to-Noise Ratio (62 dBA) Frequency Range : 60 Hz – 15 kHZ [3]

16. Microprocessor PIC24HJ32GP [4] Low Cost Team Experience Pulse Width Modulation

17. Progress and Timeline

18. Progress: Breadboard

19. Deliyannis-Friend Biquad Filter

20. Progress: Breadboard ADMP401 Microphone

21. Progress: Simulation Frequency Response Peak

22. Timeline JanuaryFebruaryMarchApril Research Design Coding Prototype Assembly Testing and Debugging

23. References [1] (2013, February 13). “Audible/Visual Signaling Appliances,” in Fire Protection Products [Online]. Available: http://www.gentex.com/fire/productshttp://www.gentex.com/fire/products [2] (2013, February 13). “Smoke, Fire, & CO Detection,” in Silent Call Communications [Online]. Available: http://www.silentcall.com/catalog/product_info.php?cPath=6&products_id=91&osCsid=527f7fff6fb1379d31318c d94d6d2165 http://www.silentcall.com/catalog/product_info.php?cPath=6&products_id=91&osCsid=527f7fff6fb1379d31318c d94d6d2165 [3] (2013, February 20). “Breakout Board for ADMP401 MEMS Microphone,” in RobotSimple [Online]. Available: http://www.robotsimple.com/Breakout_Board_for_ADMP401_MEMS_Microphonehttp://www.robotsimple.com/Breakout_Board_for_ADMP401_MEMS_Microphone [4] (2013, February 20). “PIC Microcontrollers and Projects,” in Ensemble [Online]. Available: http://www.ensemble-tech.com/pic-microcontrollers-and-projectshttp://www.ensemble-tech.com/pic-microcontrollers-and-projects

24. Smoke Notification System (SNS) Questions?