Flatiron
Mobile Device Security Monitor
Thomas Horacek
Lucas Greve
Everyday
important items are
lost or stolen
Wireless Monitoring
to the Rescue
Objectives
• Base Station
• Sound and Vibration Alerts
• Wireless: Zigbee, RFID, (Bluetooth?)
• Wireless Mobile Unit
• Power management
• Minimize size and Maximize Battery
Life
• User Interface
• USB connection with computer
• LCD Display
Possible Expansions
• Integration of multiple wireless standards for short,
medium, and long range device monitoring and
protection.
• Standalone base station where modules could be
synced with base station without the need of a
computer
• Modules minimized in size and power draw
• Additional features for modules
• Sound and vibration alerts
Hardware Block
Diagram
Sub System Implementation
RF
RF
Controllers
•
•
•
•
Minimal processing demands, handshake with
modules, poll device status
Low Power, Low Cost
Arduino
•
•
•
Open Source
Scalable
Strong Documentation on interface with RF devices
Other controllers available from TI, Amtel, etc.
Power
• Base Station:
• AC
• If possible make it portable
with battery power
• Modules: Battery Power
• Want to minimize power
consumption
• Small Battery controller and
regulator
Human Interface
• LCD screen to give the user feedback
on system status and operation
• USB interface with computer
• Possible expansion : addition of
modules without the need of a
computer
• Alerts with sound and vibration
Sustainability
•
•
•
•
Parts could be made from multiple
manufacturers.
Open source micro-controller platform that is
available from multiple companies.
Limited number of moving parts, modules could
be bought separately if individually lost.
Wireless standards will be used for
communication.
Safety and Regulations
•
•
•
All communication protocols will fall within
the requirements of the FCC standards.
All voltages of the system will be <15 V
Users will not interact with any power
systems greater than the power that
comes from a wall socket.
Risk and Contingency
• Small Team
• Scalable project that can adapt in feasibility
• RF Communication and Identification Issues
• Use of wireless standards, software solutions
to identify our modules from general RF noise
• Unexpected hardware/software problems
• Online documentation, built in overhead for
hardware failure, Instructors and TA’s
Schedule
Milestones
• CDR
• Communication between modules and base
station. Base station and modules can
recognize each other.
• Milestone One
• Full software implementation and alerts working
when modules leave network
• Milestone Two
• Full user control with feedback, product is in
final packaged state with printed circuit boards
and full software
Devision of Labor
Small team will allow for both members to have a
hand in all aspects of the project
Thomas
Wireless on Module
Embedded System
Base Station
Software on Modules
Power on Modules
Documentation
Lucas
Wireless on Base
Station
Embedded System
Module
Software on Base
Station
Power on Base
Station
Documentation
Budget
Part
Vibration Motor
Price
Quantity
Sub-Total
$4.95
1
$4.95
XBee 1mW Chip Antenna
$45.90
2
$91.80
Arduino Main Board
$29.95
1
$29.95
$1.95
1
$1.95
Basic 20x4 Character LCD - Black on Green 5V
$17.95
1
$17.95
RFID Reader ID-12
$29.95
1
$29.95
RFID Tag - 125kHz
$1.95
1
$1.95
RFID USB Reader
$24.95
1
$24.95
$35
2
$70.00
$200
1
$200
Speaker - 0.5W 8Ohm
PCB Layout
Various Components/Overhead
Total
$473.45
Questions?