Shuttletrack Shuttletrack: GPS on SafeRides With support from MIT-Microsoft iCampus Project.

Shuttletrack

Shuttletrack:GPS on SafeRides

With support from

MIT-Microsoft iCampus Project

Shuttletrack

Outline

• Motivation for ShuttleTrack

• Overview of ShuttleTrack

• Team and Expertise

• Summary

Shuttletrack

Outline

• Motivation for ShuttleTrack

• Overview of ShuttleTrack

• Team and Expertise

• Summary

Shuttletrack

Aggravated Assault

1998 1999 2000

On-campus (incl. res.)

3822 3606 3644

Residence halls

n/a 1082 1093

Non-Campus

n/a 2727 3840

Public Property

n/a 10396 11277

Total n/a 16729 18761

Courtesy:

http://www.campussafety.org/crimestats/2000.html

Campus crimes within US

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Issues closer to our campus…

Mattapan man shot near campus Apr 9

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New dorms coming near campus

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In Summary…In Summary…

MITStudents need a safe transit service

Why?Inclement weather and traffic causes delay

reliable

Solution:

GPS tracking of Saferides

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Ideally, what people want is…

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MIT SAFERIDE VANS

MIT COMMUNITY

The BIG picture

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Seems easy. Haven’t people already done it ?

http://directory.google.com/Top/Business/Industries/Telecommunications/Wireless/Location_Based_Services/Vehicle_Tracking/

Google lists over 100 companies* doing GPS fleet tracking. Why not borrow their idea and install on our vans?

*

Features:

• CDPD/cellular service

• Need commercial GIS software

• Generic nation-wide product

Too expensive

Maintenance is difficult

Not optimal for Saferide

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Our approachAdvantages:

• Low cost

• Low maintenance

• Building on existing infrastructure

• System-specific solution

• Sustainable in the longer run

• Can be promoted to other Universities

TIMELINE

• One van by end of Spring 2002

• Entire saferide fleet by end of 2002.

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Outline

• Motivation for ShuttleTrack

• Overview of ShuttleTrack

• Team and Expertise

• Summary

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Technology

Base station

GPS on van

Web server

Radios in vans

Mapping (GIS) / Arrival estimationRadio modem

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Step 1: Establish Modem CommunicationStep 2: Send GPS dataStep 3: Check and correct for interference

Modem ModemRadio Radio

Communications Technology

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GPS data to web display gps.log$GPRMC,222923,A,4221.5890,N,07106.6284,W,000.0,041.9,290402,016.0,W*73

$GPGGA,222923,4221.5890,N,07106.6284,W,1,06,2.7,44.5,M,-33.1,M,,*49

$GPGSA,A,3,,,,,,15,17,18,,23,26,29,2.7,2.7,1.0*36

$GPGSV,3,1,12,03,07,320,,06,11,211,31,08,02,029,,09,29,161,*7E

$GPGSV,3,2,12,10,21,090,,15,58,302,48,17,73,287,48,18,44,295,48*7C

$GPGSV,3,3,12,21,11,285,,23,66,049,44,26,62,048,44,29,70,238,51*77

$GPRMC,222924,A,4221.5892,N,07106.6283,W,000.0,041.9,290402,016.0,W*71

$GPGGA,222924,4221.5892,N,07106.6283,W,1,06,3.1,44.4,M,-33.1,M,,*4D

$GPGSA,A,3,,,,,,15,17,18,,23,26,29,3.1,3.1,1.0*36

$GPGSV,3,1,12,03,07,320,,06,11,211,31,08,02,029,,09,29,161,*7E

$GPGSV,3,2,12,10,21,090,,15,58,302,48,17,73,287,49,18,44,295,48*7D

$GPGSV,3,3,12,21,11,285,,23,66,049,45,26,62,048,44,29,70,238,50*77

$GPRMC,222925,A,4221.5891,N,07106.6282,W,000.0,041.9,290402,016.0,W*72

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Regular Route 

Route Segments

Stop Areas

84 Mass Ave. Stop 1

Tang Hall

Albany Garage

Short-Turn Route 

Arrival time estimation

Shuttletrack

Outline

• Motivation for ShuttleTrack

• Overview of ShuttleTrack

• Team and Expertise

• Summary

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Team roles

Base station

Web server

GPS on van

Radios in vans

Mapping (GIS) / Arrival estimation

Radio modem

Bill

Ging ging

Terran

Terran, Ryan, Sivaram

Cordy

Project Management: Sriram, Salil

Research/Documentation: Nina

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Contact info

• Krishnan Sriram • Salil Soman• Cordy Crockett• Ging Ging Liu• Nina Menezes• Ryan Tam• Sivaram Cheekiralla

Technical Advisors:•Terran Melconian•William Hall•John McDonald

[email protected]

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Outline

• Motivation for ShuttleTrack

• Overview of ShuttleTrack

• Team and Expertise

• Summary

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Summary and status report

• Radio hardware is currently being assembled

• Web development is underway in collaboration with ENVIT

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Step 1: Establish Modem Communication

• Configure modem – Determine communication protocol to use – Send and decode messages (e.g. “HELLO”, send

modem ID, packet number, check sum)

Modem ModemRadio Radio

Communications Technology

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Step 2: Send GPS data

• Configure GPS – modem connection– Initialize settings for GPS box using Kantronics

box– Kantronics box parses NMEA string and saves in

memory– Kantronics box packetizes GPS data and sends it.

Modem ModemRadio Radio

Communications Technology

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Team roles…

• Communication hardware module

• GIS server module

• Display module

• Arrival time estimation

• Collaboration with MIT admin and related initiatives such as ENVIT

• Documentation

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Step 3: Interference Study

• Determine GPS send frequency• Determine data reception rate at base

station with voice interferences on channel.

Modem ModemRadio Radio

Communications Technology