FlatironMobile Device Security Monitor

Thomas HoracekLucas Greve

Everyday important items are lost or stolen

Wireless Monitoringto 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 ImplementationRF

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

Thomas Lucas

Wireless on ModuleWireless on Base

StationEmbedded System

Base StationEmbedded System

ModuleSoftware on

ModulesSoftware on Base

Station

Power on ModulesPower on Base

StationDocumentation Documentation

Small team will allow for both members to have a hand in all aspects of the project

BudgetPart Price Quantity Sub-Total

Vibration Motor $4.95 1 $4.95

XBee 1mW Chip Antenna $45.90 2 $91.80

Arduino Main Board $29.95 1 $29.95

Speaker - 0.5W 8Ohm $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

PCB Layout $35 2 $70.00

Various Components/Overhead $200 1 $200

Total $473.45

Questions?