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 On-campus (incl. res.) Residence halls n/a Non- Campus n/a Public Property n/a Totaln/a Courtesy: Campus crimes within US

Shuttletrack Issues closer to our campus… Mattapan man shot near campus Apr New dorms coming near campus

Shuttletrack In Summary… MITStudents need a safe transit service Why? Inclement weather and traffic causes delay reliable Solution: GPS tracking of Saferides

Shuttletrack Ideally, what people want is…

Shuttletrack MIT SAFERIDE VANS MIT COMMUNITY The BIG picture

Shuttletrack Seems easy. Haven’t people already done it ? 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

Shuttletrack Our approach Advantages: 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.

Shuttletrack Outline Motivation for ShuttleTrack Overview of ShuttleTrack Team and Expertise Summary

Shuttletrack Technology Base station GPS on van Web server Radios in vans Mapping (GIS) / Arrival estimationRadio modem

Shuttletrack Step 1: Establish Modem Communication Step 2: Send GPS data Step 3: Check and correct for interference Modem Radio Communications Technology

Shuttletrack GPS data to web display gps.log $GPRMC,222923,A, ,N, ,W,000.0,041.9,290402,016.0,W*73 $GPGGA,222923, ,N, ,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, ,N, ,W,000.0,041.9,290402,016.0,W*71 $GPGGA,222924, ,N, ,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, ,N, ,W,000.0,041.9,290402,016.0,W*72

Shuttletrack Arrival time estimation

Shuttletrack Outline Motivation for ShuttleTrack Overview of ShuttleTrack Team and Expertise Summary

Shuttletrack 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

Shuttletrack 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

Shuttletrack Outline Motivation for ShuttleTrack Overview of ShuttleTrack Team and Expertise Summary

Shuttletrack Summary and status report Radio hardware is currently being assembled Web development is underway in collaboration with ENVIT

Shuttletrack 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 Radio Communications Technology

Shuttletrack 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 Radio Communications Technology

Shuttletrack Team roles… Communication hardware module GIS server module Display module Arrival time estimation Collaboration with MIT admin and related initiatives such as ENVIT Documentation

Shuttletrack Step 3: Interference Study Determine GPS send frequency Determine data reception rate at base station with voice interferences on channel. Modem Radio Communications Technology