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Emergency Vehicle Traffic Control System

Emergency Vehicle Traffic Control System. Ryan Goldade CEO Leon Chang CTO Jung Jun Kim COO Tae-Hoon Kim CMO Kelvin Liu CFO. December 15, 2008. The Problem Our Solution System Overview Commercialization Budget and Timeline Future Development Conclusion Questions & Answers. Overview.

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Emergency Vehicle Traffic Control System

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  1. Emergency Vehicle Traffic Control System Ryan Goldade CEO Leon Chang CTO Jung Jun Kim COO Tae-Hoon Kim CMO Kelvin Liu CFO December 15, 2008

  2. The Problem Our Solution System Overview Commercialization Budget and Timeline Future Development Conclusion Questions & Answers Overview

  3. The Problem • EMV are often delayed by civilian vehicle operators • Flashing lights and siren do not ensure the right-of-way • EMV entering intersections on red lights • In some cases drivers do not pay attention or they may not know how to react when an EMV approaches

  4. The Problem dead “Two dead after police car collides with vehicle at intersection”

  5. The Problem

  6. GPS Signal Traffic Light Control Vehicle Location Wireless Data Transmission to Traffic Light Our Solution

  7. Our Solution • Allow faster and safer response to emergencies • Avoid miscommunication between drivers • Eliminate the need of running a red light • Ensure the EMV operator has the right-of-way • Clear out traffic directly in front of the EMV

  8. System Overview GPS Module EMV’s position RF Module Traffic Light Preemption Instructions Traffic Light Module

  9. System Overview The project is composed of 3 modules: • GPS Module • Acquire EMV’s position • RF Module • Transmitter : Filter and transmit useful GPS data to the receiver • Receiver : Perform traffic-light-preemption calculations • Traffic Light Module • Maintain operation of a functioning intersection

  10. System OverviewGPS Module • Chip used: ZX4120 • Reacquisition Time: 0.1 seconds • Track up to 16 satellites • Accuracy within average of 7 meters • Asynchronous serial communication

  11. System OverviewGPS Module – NMEA Messages • Messages being sent to RF Module Transmitter

  12. System OverviewRF Module • Input: Position of emergency vehicle • Output: Traffic light preemption instructions • Interface Used: RS232 serial I/O port

  13. System OverviewRF Module - Transmitter • Relays GPS position to traffic light preemption controller (RF Receiver) • Only transmit GPS message with the prefix $GPRMC. This message includes: • Longitude, latitude, time and speed • Message is transmitted to the receiver @ default settings: • Frequency: 868MHz • Data Rate : 38.4kbps

  14. System OverviewRF Module - Receiver • Received packet is validated by: • Length • Network ID • CRC16 • Sequence number • Extract latitude and longitude • Calculate vehicle direction from EMV distance to intersection • Distance decreasing = Approaching intersection • Distance increasing = Exiting intersection

  15. System OverviewRF Module – Receiver – Car detection

  16. System OverviewTraffic Light Module • For demonstration purposes only • Maintain operation of a functioning intersection • Determines which lights are active for each direction of the intersection • Employ timer to switch direction of traffic flow • Two modes of operation: • Regular Mode • Emergency Mode • Handle the event of an EMV approaching • Triggered by RF Module

  17. System OverviewTraffic Light Module – Regular Mode

  18. System OverviewTraffic Light Module – Emergency Mode • When an EMV is approaching an intersection • A character keystroke is sent from the RF Receiver to activate Emergency Mode

  19. System OverviewTraffic Light Module – Emergency Mode • When an EMV is exiting the intersection • A character keystroke is sent from the RF Receiver to deactivate Emergency Mode

  20. System OverviewTraffic Light Module – Emergency Mode

  21. CommercializationBusiness Opportunities • City Planning Project • New infrastructure • Integrate with public transit • Improve service efficiency • Incentives for insurance companies • Enhance road safety

  22. CommercializationComponent Cost • Note: • All prices are in USD • Installation cost are not included • - Price of Traffic Light Module is omitted since it’s for demonstration only

  23. CommercializationProduct Package and Installation • Note: • All prices are in USD

  24. Budget

  25. TimelineProject Milestone

  26. TimelineSchedule • Gantt chart

  27. Future Development • Longer RF transmission range (~200m) • Central intelligent unit to maintain operation during GPS dropout • Integrate with GPS trip planner • Implement advanced green and pedestrian crosswalk control

  28. Conclusion • What we learned • Time management • Project planning, documenting and testing • Module Integration • Software Engineering • Soldering

  29. Acknowledgements • ESSS • Ciber Lab • Al Lund • Pacific Traffic Education Center • Spencer MacDonald • BC Safety Council • ICBC • Justice Institute • Terry Swain • Pacific Safety Centre • Const. Mitch La Framboise • Abbotsford PD • Andrew Rawicz and Mike Sjoerdsma (and company)

  30. Questions?

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