1. Digital Carpool Aid Mid-semester Presentation Senior Design II October 13, 2015

2. Team Tanner Weissinger, Computer Engineering Team Leader Tyler Hilliard, Electrical Engineering Marshall Webb, Electrical Engineering Jordan Clark, Electrical Engineering Spencer McCoy, Electrical Engineering

3. Faculty Advisor Dr. Sherif Abdelwahed, Professor ECE Department

4. Overview Problem Solution Functional Overview Constraints Progress Testing Future Work

5. Problem The carpool process is time-consuming and stressful. Current solutions are either expensive or don’t completely solve the problem [1]. Human error in the current process could result in security problems for children.

6. Solution Digital Carpool Aid will keep a record of cars as they enter the campus. The system then determines which children the car is there to pick up and sends an automatic alert to the child’s homeroom teacher.

7. Functional Overview

9. Functional Overview (cont.) Microcontroller Power Supply Camera Rangefinder RFID Scanner WIFI Antenna Web App Ethernet Port RFID Antenna “Unknown” Database “Students” Database “Faculty” Database

10. Constraints

11. Technical Constraints NameDescription RFID Detection Range The RFID reader must be able to detect and read passive RFID tags at a range of 5ft. Wi-Fi Connection Range The wireless antenna must be able to detect and connect to Wi-Fi access points within 150ft. Server Function The server must host and update the web-app when 50 users are logged in simultaneously. Input Power The system must operate on 120VAC input power.

12. Practical Constraints TypeNameDescription SustainabilityRFID Recyclability RFID tags must be serviceable for at least 2 years EconomicRFID Cost Cost per family must not exceed $10 per year.

13. Work Distribution

14. Progress

15. Raspberry Pi B+ 2 MW RS-25-5 Power Converter Maxbotix Rangefinder TR-65 RFID Reader WIFI Antenna Ethernet Port TAL-60 RFID Antenna 5V DC USB 120V AC Data only USB Standard USB GPIO Ribbon Cable RP-TNC RPI Camera Board *New Hardware

16. System Housing Main Tower 8.5’ Tall 5’ Wide System Housing 7.9” x 6.1” x 3.1” IP-65 compliant Modular junction ports with rubber inserts

17. Software Index.py Flask Web-app Asynchronous web-page updates SQL injection protection General optimization Main.py Interfaces all hardware components New code for new rangefinder General optimization

18. Pictures

19. Testing

20. Testing Previous Software

21. Testing Rangefinder Serial Data

22. Testing Rangefinder Functionality

23. Testing Power Supply

24. Future Work Correct rangefinder data with MAX3232 Finish web-app and state machine refactoring Assemble and seal all hardware in weatherproof housing Test final system outdoors with vehicles

25. References [1] MHR Technologies. [Online]. Available: http://www.mhrtechnologies.com/index.php. [Accessed: Mar 4, 2015].

26. Digital Carpool Aid Mid-semester Presentation Senior Design II October 13th, 2015