1. University of Massachusetts Senior Design Project - Final Design Review Team REES 04/16/2014 By Team REES (Hantz Alvarez, Liyan Tang, Joel Fogue, Pablo Alvarez)

2. Original PDR Specifications Real-Time counter for the number of people entering and exiting each room in a building Account for the difference between a person entering and exiting Reasonably accurate Calculate evacuation route in case of an emergency Account for possible traffic flow Arrows displaying guided path to nearest emergency exit

3. Adjusted Specifications Real-Time counter for the number of people entering and exiting each room in a building Detects direction of motion, whether entering or exiting the room Reasonably accurate Detecting people in single file rather than simultaneously Can only count one person at a time Two people can’t walk in and out at the same time Should only take about 1 to 2 seconds max to walk through the door

4. Power Consumption External Power Source – 12V Components Arduino + Wifi shield 200mA-800mA Grid Eye Sensor – 3.3V, 10uA Wireless Shield - ~300mA

5. Component Price Arduino Uno Single Board Microcontroller $27.95 Arduino Wireless Shield $84.95 12 VDC 1000mA Adapter $8.95 Panasonic Grid Eye IR Sensor(Breakout) $39.21($75.14)

6. Block Diagram