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Wireless Bus Tracking. Jasen Su Orus Coffield ECE 345 Senior Design Fall 2001. Introduction. Project Overview Goals and Objectives Delegation of Tasks Software Design Hardware Interfacing Testing and Troubleshooting

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wireless bus tracking
Wireless Bus Tracking

Jasen Su

Orus Coffield

ECE 345 Senior Design

Fall 2001

introduction
Introduction
  • Project Overview
  • Goals and Objectives
  • Delegation of Tasks
  • Software Design
  • Hardware Interfacing
  • Testing and Troubleshooting
  • Recommendations
  • Special Circuit
  • Summary
project overview system
Project Overview(system)

GPS

Computer

Access

Point

Terminal

project overview software
Project Overview(software)

Initialization

Grab GPS

Coordinates

Parse Data

Perform

Calculations

Prepare for

Next Grab

Wait for

4 Seconds

Update

Web Page

goals and objectives
Goals and Objectives
  • Create real time system to track buses
  • Use readily available parts
  • Implement user-friendly interface
  • Create a “finished product”
software design features
Software Design(features)

For General Public:

  • Location of bus
  • ETA of bus
  • Display of bus schedule
  • Instant status of bus service
software design features1
Software Design(features)

For Bus Company:

  • Better customer service
  • Tracking of employees
  • Easy installation
  • Quick customization
delegation of tasks
Delegation of Tasks
  • Jasen
    • Software Design
    • Equipment Acquisition
  • Orus
    • GPS
    • Special Circuit
software design requirements
Software Design(requirements)
  • Needed to be easily modified
  • Wanted cross-platform compatibility
  • Use of web page to display
  • Clear intuitive schedule
software design development
Software Design(development)
  • Written in Java
  • Allowed for most customization through text files
  • Use of applets to perform updates
  • Creation of new objects to extract data
hardware interfacing
Hardware Interfacing
  • GPS => Computer
    • NMEA Standard
    • JNav by Joel Koch
  • Computer  Computer
    • Via IEEE 802.11
    • Wireless System Specs
testing and troubleshooting
Testing and Troubleshooting
  • GPS Problems
    • Data Transfer
    • Data Storage
  • Software Problems
    • Displaying Applet
    • Parsing data
    • ETA method
testing and troubleshooting1
Testing and Troubleshooting

(Screenshot goes here)

(We can discuss final operation of system…what happened at the demo)

recommendations
Recommendations
  • How can we improve the project?
    • Polish Interface
    • Expand Network
    • Add Functions For Multiple Buses
    • Write More Methods to Increase Customization
special circuit
Special Circuit
  • Ultrasonic Sensor
    • 40 kHz center frequency
    • 5 V and 9 V power supplies
  • Parts Used
    • LM567 (decoder)
    • LM744 (op-amp)
    • LM311 (comparator)
    • KA555 (timer)
summary
Summary
  • All Goals Accomplished
  • Still Room To Expand
  • Other Applications