1. Voice-Activated Television Remote Control (VAR) Senior Design II Mid-Semester Presentation [1]

2. VAR Team Members Team Leader Electrical Engineer Hardware PCB Design PCB Components Packaging Computer Engineer Website PIC programming Voice Recognition testing Computer Engineer Website GUI Creator PIC programming Voice Recognition Testing Adviser: Dr. Pan Li Electrical Engineer Hardware PCB Design PCB Components Packaging Melissa Webb David Trosclair Bobby Britton Bader Yaseen

3. Outline Problem Solution Constraints Technical Practical Hardware Software Questions

4. Problem and Solution

5. Problem Some people do not have the ability to operate a standard hand-held television remote control. Our market is the elderly and/or disabled. “During the 20 th century, the number of people in the United States aged 65 or over increased by a factor of 11, growing from 3 million to 33 million” [2, 3].

6. Solution The VAR will allow users to operate their television by using voice commands. By speaking into a microphone, the user is able to control 6 functions of the television: - Power- Mute - Volume Up- Volume Down - Channel Up- Channel Down

7. What is the VAR? The user will speak the commands into a microphone attached to a computer with our voice recognition software. The software will translate and wirelessly send the signal to the VAR. A microprocessor will convert from the wireless input to an IR signal and output to the television. VAR

8. Technical and Practical Constraints

9. System Overview

10. Technical Constraints NameDescription Power Supply The VAR must operate from a standard 120V wall outlet. Response Time Target time for complete process is less than two seconds. Transmission Distance The wireless signal and the IR signal’s maximum distances are 15 feet. Voice CommandsThe VAR will recognize six vocal commands. IR Accuracy The IR signal must be transmitted and received accurately 98% of the time.

11. Practical Constraints NameDescription Product SizeThe VAR will be no larger than 8” x 8” x 3”. Operating SystemThe VAR will be Windows OS compatible.

12. Practical Constraints Manufacturability: Product Size The VAR will be no larger than 8’’ x 8’’ x 3’’. Convenient for user Easily fits into any space Portable Comparable to devices such as modems and routers

13. Practical Constraints Manufacturability: Operating System The VAR software will be Windows OS compatible. Microsoft Windows is one of the most commonly used operating systems for personal computers [4]. Executable files of the program can easily be made.

14. Hardware

15. PCB Schematic

16. PCB Layout Front Back

17. PCB Layout Front Back Power Jack

18. PCB Layout Front Back Power Switch

19. PCB Layout Front Back IR LEDs

20. PCB Layout Front Back Voltage Regulator

21. PCB Layout Front Back PIC24

22. PCB Layout Front Back Bluetooth

23. PCB Layout Front Back PIC Kit

24. PCB Layout Front Back Extra Holes

25. Testing: Footprints

26. Back

27. Power Jack Power Switch

28. Front

29. IR LEDs

30. To Do Order the PCB Order the packaging Populate the board Test the hardware constraints

31. Software

32. Reminisce: Previous Voice Recognition Software

33. Current Voice Recognition Software

34. Alteration of Keyword Previous Keyword: “Listen”Current Keyword: “Attention”

35. VAR GUI Operations COM Port Menu ItemCOM Port Selection

36. VAR GUI Operations

37. New Feature: Channel Customization Customize up to 7 channels Add Channels Delete Channels Error Detection strictly enforced when attempting to authorize a new channel Channel authorization success grants local integration of that channel to VAR’s customized dictionary

38. Add / Delete Channel Menu Items Add Channel Menu ItemDelete Channel Menu Item

39. Add Channel Operation Add Custom 1 Slot after Add Channel Operation Delete Custom 1 Slot after Add Channel Operation

40. Delete Channel Operation

41. Error Detection: Inadequate Information

42. Error Detection: Channel Name Already Assigned

43. Error Detection: Channel Number Already Assigned

44. Error Detection: Invalid Channel Name

45. Error Detection: Invalid Channel Number

46. Channel Customization Integration to VAR GUI

47. To Do Test / Verify Voice Recognition Accuracy Test / Verify Error Detection Verify that executable is stable with other PCs

48. Timeline AugustSeptemberOctoberNovember Software Refinement PCB Design PCB Populating Enclosure Testing

49. References [1] (2012, February 18). “Elderly Couple Watching TV,” in fotosearch. [Online]. Available: http://www.fotosearch.com/photos-images/television-programme.htmlhttp://www.fotosearch.com/photos-images/television-programme.html [2] F. Hobbs. (2012, January 21). “The Elderly Population,” in U.S. Census Bureau. [Online]. Available: http://www.census.gov/population/www/pop-profile/elderpop.htmlhttp://www.census.gov/population/www/pop-profile/elderpop.html [3] (2012, January 21). “Sixty-Five Plus in the United States,” in U.S. Census Bureau. [Online]. Available: http://www.census.gov/population/socdemo/statbriefs/agebrief.htmlhttp://www.census.gov/population/socdemo/statbriefs/agebrief.html [4] (2012, February 18). “Operating System,” in StatCounter Global Stats. [Online]. Available: http://gs.statcounter.com/#os-ww-monthly-201202-201202-barhttp://gs.statcounter.com/#os-ww-monthly-201202-201202-bar

50. Voice-Activated Television Remote Control (VAR) Senior Design II Mid-Semester Presentation Questions?