1 Electrical and Computer Engineering Drebin Rescuing Firefighters in Distress FPR Team Ganz:...

1Electrical and Computer Engineering

DrebinRescuing Firefighters in Distress

FPRTeam Ganz: Jonathan Bruso Michael Carney Daniel Fortin James Schafer


Outline

Background Motivation System Requirements Video Users System Components

• Drebin System Installer• Tracking Software• Incident Commander Interface

Demo


Background and Motivation:

Firefighters lives are endangered when going into burning buildings

Many firefighter have recently perished after becoming lost or unconscious in a burning building• Worcester, MA 1999 (six killed)• Bronx, NY 2006 (one killed)• Charleston, SC 2007 (nine killed)

A system that can track firefighters in a building could aid in tracking and rescuing firefighters in distress


System Requirements:

Dynamically display firefighters position on a visual blueprint of the building

• Allow for the toggling of the path for each firefighter

Critical System, must be able to detect and recover from error quickly

User Friendly


VIDEO DEMO!!!!!


Users

Firefighter• Carries RFID Reader and PDA

System Installers Creating building blueprint using Drebin System

Installer• Responsible for placement of tags and system

calibration• Require average computer skills

Incident Commanders• Exposed to Drebin Visual Display• Features automated and require little computer

knowledge


Our Design (1 reader and Multiple Tags):

Tracking Done Using Active RFID Technology


Overall Design

Total System Software: 14,696 Lines of Code

Drebin System Installer

Tracking Software

Incident Commander Interface


Overall Design

Drebin System Installer : 3,793 Lines of Code

Tracking Software



Drebin System Installer Features

Used to design the floor layout of a building Wall Creation

• Blueprint generation

Save/load Functionality Tags placed on blueprint System calibrated for individual environments Room and Hallway Identification


Drebin System Installer Evolution

CDR Current


Main Software Features:

Blueprint Analysis Search for tags located:

Inside rooms Inside hallways Doorway tags

Room, Doorway, Hallway Connection

Find triangular orientation of tags

Required for trilateration


Overall Design


Tracking Software : 6,610 Lines of Code



Tracking Software and Algorithms: Current status Goal: Hallway and Room Tracking / Identification Uses blueprint and tag layout created with

Drebin System Installer Signal Strength to Distance

• Alternative: Trilateration• Signal Strength to Distance through walls• High Accuracy Required for Distance Computation

Zone Analysis


Current Zone Algorithm

Two Tracking Modes

Both use signal strength to distance conversion• Threshold for within 10 feet of each tag• Signal strength to distance conversion within 10-35 ft

Both use created Blueprint• Hallway Tags• Room Tags• Transitional Tags


Hallway

Tags Placement:• Every 30 feet down hallways

Region Between Hallway Tags calculated• Uses Signal Strength to Distance conversion


Room

Rooms in Blueprints are zones Tags Placement:

• Middle of room• Within 5 feet of each doorway inside room

Transition detection determined by signal strength (10 feet threshold )• Entrance through doorway• Entrance from Hallways


Tracking Software


Tracking Software

Incident Commander Interface : 3,239 Lines of Code



Created after CDR Uses Zone Analysis Data from Tracking Algorithm

to display current position on Blueprint created using Drebin System Installer


Main Software Features:

Wireless Communication Bluetooth connects to one PDA / Laptop Data gathered and sent via WIFI to second Laptop Second Laptop executes Tracking Software


Path Display:

745 Lines of Code

Path Construction and Replay Traversed route calculated based of zones Path save / load functionality

Replay Toggle to specific point in time Animate


Path Animation


Final Demo:

Incident Commander Interface located on projector

Group member walks with Laptop / Reader throughout building

Reader Zone displayed on Incident Commander Interface

Path Animation


Engineering techniques and tools

Microsoft Visual Studio 2008• to design Drebin system• to design Blueprint Designer

C# programming Microsoft SQL Server Microsoft Office Suite for engineering documents

and data analysis MATLAB


Application of courses

Databases/Programming• Designing tools with object oriented programming• Database design and management• C# learned outside of class

Computer Systems Lab I/II• Serial interfaced communication with RFID Reader

Mathematics• Statistical analysis• Trilateration algorithm

Software Engineering• Reliability, requirement specification etc..


Team Roles, technical and administrative

Jon Bruso Computer Systems Engineering• Trilateration and distance calculation algorithm, Incident commander

GUI, Blueprint Generator, Serial communication with reader, Incident Commander Interface, Hallway and Room Tracking Algorithm, Team Manager

Mike Carney Computer Systems Engineering• Trilateration Implementation, Room Zone Analysis, Room Display

Dan Fortin Electrical Engineering• Trilateration research, Statistical analysis, Testing Plan

James Schafer Computer Systems Engineering• Logarithmic model experimentation, Trilateration algorithm testing,

Documents coordinator, Path Animation, Wireless Communication, Marcus Blueprint Creation


Outside sources and references

M220 RFID Reader Users Manual• Used to design serial interface for reader

Indoor Positioning via Three Different RF Technologies• Algorithms for signal strength to distance conversion

RADAR: An In-Building RFbased Tracking• From research.microsoft.com• Algorithms for signal strength to distance conversion

1 Electrical and Computer Engineering Drebin Rescuing Firefighters in Distress FPR Team Ganz:...

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