A PPLICATIONS What can you do with it? Tracking friends on campus Updating bus schedule – Refined schedule for UMass buses MIE’s Supermileage Vehicle – Recording engine activity for fuel efficiency

S YSTEM O VERVIEW GPS  Buffer  Serial/Wireless  Database  User Interface

H ARDWARE A RCHITECTURE Queuing System

H ARDWARE A RCHITECTURE Position – Latitude – Longitude – Altitude Time Error

C IRCULAR B UFFER Shared Variable – Counter Queuing System

C HALLENGES Interprocess Communication – Shared Memory – Mutual Exclusion Scarce I/O Pins Availability in PIC – Memory Controller PLD – Programmable Logic Device Memory Size – 8Kbtye Memory – Cost

Q UERIES Allows to search by: – Location Latitude Longitude – Time and Date – Track Name – Track Description – Extra track tags

K EYHOLE GUI

D EVICE C HARACTERISTICS Weight 2.4 lb Power Consumption 2.4 W 7.5V) Battery Life About 7.5 Hours with 2400 mAhr battery Range of Wireless 7 Miles Line of Sight ¼ Mile Urban

P ROTOCOL

P ROJECT G OALS Read Data From GPS Into PIC Store Data Into Memory Retrieve Data From Memory and Send Over Serial Link Store Data into Database Retrieve Data from Database Display Data Using User Interface

S OFTWARE

L OCATION A WARE I NFORMATION S YSTEM