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GSC Shuttletrack: GPS on SafeRides With support from MIT-Microsoft iCampus Project Shuttletrack Outline Motivation for ShuttleTrack Overview of ShuttleTrack Team and Expertise Summary GSC • • • • Shuttletrack Outline Motivation for ShuttleTrack Overview of ShuttleTrack Team and Expertise Summary GSC • • • • Shuttletrack Campus crimes within US Aggravated Assault Courtesy: GSC On-campus (incl. res.) Residence halls NonCampus Public Property Total 1998 1999 2000 3822 3606 3644 n/a 1082 1093 n/a 2727 3840 n/a 10396 11277 n/a 16729 18761 http://www.campussafety.org/crimestats/2000.html Shuttletrack GSC Issues closer to our campus… Mattapan man shot near campus Apr 9 New dorms coming near campus -------------------------- -------------------------- Shuttletrack In Summary… reliable GSC MITStudents need a safe transit service Why? Inclement weather and traffic causes delay Solution: GPS tracking of Saferides Shuttletrack GSC Ideally, what people want is… Shuttletrack The BIG picture Shuttletrack GSC MIT COMMUNITY MIT SAFERIDE VANS Shuttletrack Seems easy. Haven’t people already done it ? Features: GSC Google lists over 100 companies* doing GPS fleet tracking. Why not borrow their idea and install on our vans? • CDPD/cellular service Too expensive • Need commercial GIS software Maintenance is difficult • Generic nation-wide product Not optimal for Saferide *http://directory.google.com/Top/Business/Industries/Telecommunications/Wireless/Location_Based_Services/Vehicle_Tracking/ Shuttletrack Our approach Advantages: • Low cost GSC • Low maintenance • Building on existing infrastructure • Sustainable in the longer run • Can be promoted to other Universities • System-specific solution 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 GSC • • • • Shuttletrack GSC Technology Radio modem Radios in vans Web server Mapping (GIS) / Arrival estimation Base station Shuttletrack Modem GSC Communications Technology Radio Radio Modem Step 1: Establish Modem Communication Step 2: Send GPS data Step 3: Check and correct for interference Shuttletrack Arrival time estimation Albany Garage GSC Route Segments 84 Mass Ave. Stop 1 Stop Areas Tang Hall Regular Route Short-Turn Route Shuttletrack Outline Motivation for ShuttleTrack Overview of ShuttleTrack Team and Expertise Summary GSC • • • • Shuttletrack Team roles Terran, Ryan, Sivaram Bill Ging ging Terran GSC Web server Radio modem Mapping (GIS) / Arrival estimation Cordy Base station Radios in vans Project Management: Sriram, Salil Research/Documentation: Nina Shuttletrack Contact info [email protected] Krishnan Sriram Salil Soman Cordy Crockett Ging Ging Liu Nina Menezes Ryan Tam Sivaram Cheekiralla GSC • • • • • • • Technical Advisors: •Terran Melconian •William Hall •John McDonald Shuttletrack Outline Motivation for ShuttleTrack Overview of ShuttleTrack Team and Expertise Summary GSC • • • • Shuttletrack Summary and status report GSC • Radio hardware is currently being assembled • Web development is underway in collaboration with ENVIT Shuttletrack Communications Technology Modem GSC Step 1: Establish Modem Communication Radio Radio Modem • Configure modem – Determine communication protocol to use – Send and decode messages (e.g. “HELLO”, send modem ID, packet number, check sum) Shuttletrack Communications Technology Modem GSC Step 2: Send GPS data Radio Radio Modem • 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. Shuttletrack Team roles… • • • • • GSC Communication hardware module GIS server module Display module Arrival time estimation Collaboration with MIT admin and related initiatives such as ENVIT • Documentation Shuttletrack Communications Technology Modem GSC Step 3: Interference Study Radio Radio Modem • Determine GPS send frequency • Determine data reception rate at base station with voice interferences on channel. Shuttletrack
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