ECE 477 Final Presentation Team 7 Spring 2011

Paste a photo of team members with completed project here. Annotate this photo with names of team members.

Linda Stefanutti Zach Smith Stuart Pulliam Will Granger

Outline

• Project overview• Block diagram• Design challenges• Individual contributions• Project demonstration• Questions / discussion

Project Overview• Digijock Home Security (DHS) is a wireless

alarm system designed to protect homes from fire and burglary.

• Target:– Inexpensive, full-featured system

• Features:– motion, noise, smoke and temperature

sensors– Web enabled/controlled

Block Diagram

Remote Sensor Unit

Central Monitoring Station

Design Challenges• Component selection - RSU• PCB design• XBee Wireless module

• Voltage translator• network configuration

• Interfacing LCD with Atom board

Individual Contributions• Team Leader – Linda Stefanutti• Team Member 2 – Stuart Pulliam• Team Member 3 – Will Granger• Team Member 4 – Zach Smith

Team Leader – Linda Stefanutti• Organization of the team work• Initial design

• objectives, research, selection• Circuit prototyping• Remote Sensor Unit software • Packaging• Final prototyping

Member 2 – Stuart Pulliam• Selected and purchased components• Designed and prototyped sensor circuits• Designed PCB• Debugged wireless, etc.• Final packaging design• Wrote CMS LCD program

Member 3 – Will Granger• Came up with team name• RSU software• Preliminary PCB• Packaging• Update website

Member 4 – Zach Smith• XBee Wireless Network• Web Application: .NET and ASPX• CMS Main Program: C#• Database: SQLServer 2005• Soldering PCB• Packaging

Project Demonstration1. An ability to detect motion based on temperature variance, noise above 90dB,

the presence of smoke/combustion with a photoelectric amplifier, and to measure temperature with a thermocouple amplifier.

2. An ability to encode and transmit data packets wirelessly to/from the remote sensors with a sensor identification address included in each packet.

3. An ability to arm/disarm the security system and to alert the user (visually, audibly, and through email) of emergency conditions from both the CMS and the remote sensor units.

4. An ability to time stamp events and log them in non-volatile memory on the CMS.

5. An ability to display event logs and operational status on an LCD as well as a webpage hosted by an embedded web server.

Demo

Questions / Discussion