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Wireless Bus Tracking

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

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  1. Wireless Bus Tracking Jasen Su Orus Coffield ECE 345 Senior Design Fall 2001

  2. Introduction • Project Overview • Goals and Objectives • Delegation of Tasks • Software Design • Hardware Interfacing • Testing and Troubleshooting • Recommendations • Special Circuit • Summary

  3. Project Overview(system) GPS Computer Access Point Terminal

  4. Project Overview(software) Initialization Grab GPS Coordinates Parse Data Perform Calculations Prepare for Next Grab Wait for 4 Seconds Update Web Page

  5. Goals and Objectives • Create real time system to track buses • Use readily available parts • Implement user-friendly interface • Create a “finished product”

  6. Software Design(features) For General Public: • Location of bus • ETA of bus • Display of bus schedule • Instant status of bus service

  7. Software Design(features) For Bus Company: • Better customer service • Tracking of employees • Easy installation • Quick customization

  8. Delegation of Tasks • Jasen • Software Design • Equipment Acquisition • Orus • GPS • Special Circuit

  9. Software Design(requirements) • Needed to be easily modified • Wanted cross-platform compatibility • Use of web page to display • Clear intuitive schedule

  10. 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

  11. Hardware Interfacing • GPS => Computer • NMEA Standard • JNav by Joel Koch • Computer  Computer • Via IEEE 802.11 • Wireless System Specs

  12. Testing and Troubleshooting • GPS Problems • Data Transfer • Data Storage • Software Problems • Displaying Applet • Parsing data • ETA method

  13. Testing and Troubleshooting (Screenshot goes here) (We can discuss final operation of system…what happened at the demo)

  14. Recommendations • How can we improve the project? • Polish Interface • Expand Network • Add Functions For Multiple Buses • Write More Methods to Increase Customization

  15. 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)

  16. Special Circuit

  17. Summary • All Goals Accomplished • Still Room To Expand • Other Applications

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