Team 7: Sunoco Hotdog
Eye Home
Mid-Semester Presentation
Hong, Keetaek
Baek, Jinwook
Lee, David
Concept and Motivation
 Concept: This project will inform the individual in case
of fire or break-in at the house through mobile text
messaging
 Motivation: Anything can happen at home whether it is
vacant or no adult is present. This prototype
provides a cost efficient way to inform the home
owner in case of a troubled situation at home
Status Update
 Accomplishments
 Wrote a program that can send text messages
 Registered for propriety SMS server site
 Conflict in voltage input for smoke sensor
 Mitigation
 Sensor Compatibility – voltage adaptor
 Assumption
 We will be able to integrate breadboard into Tmote
in future development
Eye Candy
Mainframe
Dell E1505
T-mote x 2
Moteiv TMote Sky
Motion Sensor
Futurlec Directional Infrared Radial Sensor
Smoke Sensor
Futurlec CO2 Sensor
Mobile Phone
Nokia E61
Demo Scenario
Next Steps
Tmote Configurations
 Tmote Sensor installation adjustment
 Reconciling voltage difference between
sensors and Tmote
 Tmote TinyOS setup
 Tmote Communication
Software Architecture
Overview
 Tmote:
 Based on TinyOS, executes simple operations
such as heartbeat and interrupt signals.
 Main Frame:
 When Tmote sends signal it acknowledges the
notification and executes the text messaging
program.
S/W
Diagram
Alarm
Heartbeat
APIs
 Tmote
 Heartbeat()
 Constantly sends the heartbeat signal to the mainframe
on the periodic basis.
 sensor_monitor(int fd)
 Within the while loop keep polling the sensor to see if the
fire sensor went off
 fire_alarm()
 Once sensor_monitor return the true value in the fire
detection this function sends out the notification to the
mainframe
API continued
 MainFrame
 send_text(String crisis)
 This function is in charge of the sending the request to the SMS text
message service.
 check_connection()
 By pinging one of the most stable websites to see if the internet
connection is fine.
 sensor_checker(int fd)
 Check if the sensor has detected anything.
 heartbeat_monitor(int fd)
 Make sure the smoke sensor still functions
 More functions coming up!
Lessons Learned
 Tmote voltage Issue
 Realized the need of reconciliation of the voltage
difference between sensor and the tmote. -> Will
resolve by implementing small circuit on
breadboard
 Alternative internet connection
 Scan for other connections using built-in wireless
device driver is not as easy as we thought.
 Sunoco came up with taquitos and they are
good too.
Schedule
Deadlines
Deliverables
Completed?
2/20
Received Parts
Yes
2/26
Cell phone Text
Messaging Service
Yes
3/5
Install Sensor to
Tmote
NO
3/9
Configuring TinyOS
NO
3/17
Spring Break
NO
3/31
Tmote to Tmote
NO
4/8
Baseline complete
NO
4/15
Extension prj
implementation
NO
Questions?