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

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

Faculty Advisor Dr. Sherif Abdelwahed, Professor ECE Department

Overview Problem Solution Functional Overview Constraints Progress Testing Future Work

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.

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.

Functional Overview

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

Constraints

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.

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.

Work Distribution

Progress

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

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

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

Pictures

Testing

Testing Previous Software

Testing Rangefinder Serial Data

Testing Rangefinder Functionality

Testing Power Supply

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

References [1] MHR Technologies. [Online]. Available: [Accessed: Mar 4, 2015].

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