Emergency Vehicle Traffic Control System

December 15, 2008

Ryan Goldade CEOLeon Chang CTOJung Jun Kim COOTae-Hoon Kim CMOKelvin Liu CFO

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

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

The Problem

“Two dead after police car collides with vehicle at intersection”

dead

The Problem

Our Solution

GPS Signal

Vehicle Location

Wireless Data Transmission to Traffic Light

Traffic Light Control

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

System Overview

GPSModule

RFModule

TrafficLight

Module

EMV’s position

Traffic Light PreemptionInstructions

System OverviewThe 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

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

Baud Rate 9600

Data Bits 8

Parity None

Stop Bits 1

Flow Control None

System OverviewGPS Module – NMEA Messages

Messages being sent to RF Module Transmitter

Prefix Format

$GPGGA GPS fix data

$GPGLL Geographic position

$GPGSA GNSS DOP and active satellites

$GPGSV Satellites in view

$GPRMC Recommended Minimum specific GNSS data

$GPVTG Velocity and track over ground

$GPZDA Data and Time

System OverviewRF Module

Input: Position of emergency vehicle Output: Traffic light preemption instructions Interface Used: RS232 serial I/O port

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

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

System OverviewRF Module – Receiver – Car detection

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

System OverviewTraffic Light Module – Regular Mode

Start

Set North and South green

Set East and West red

Change green lights to yellow

Wait 3 seconds

Change yellow lights to red

Wait 1second

Change next set green

Wait 30 seconds

Regular Mode?Start Emergency

response

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

Keystroke Note

N EMV approaching from North

S EMV approaching from South

E EMV approaching from East

W EMV approaching from West

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

Keystroke Note

q EMV exits intersection

System OverviewTraffic Light Module – Emergency Mode

Interupt from Serial Port

Is key a ‘q’? YES

Is key an ‘N’?

Set to regular mode

Is key an ‘E’?

YESVehicle

approaching from North

Vehicle approaching from

EastYES

Is key an ‘S’?

Is key a ‘W’?

YESVehicle

approaching from East

Vehicle approaching from

EastYES

Set to emergency mode

Emergency Mode

Approaching from North?

YES

Turn South red

Is North green?

YES

Turn East and West Red

Turn North green

Approaching from East?

YES

Turn West red

Is East green? YES

Turn North and South Red

Turn East green

Approaching from South?

YES

Turn North red

Is South green?

YES

Turn East and West Red

Turn South green

Approaching from West?

YES

Turn East red

Is West green? YES

Turn North and South Red

Turn West green

Wait till serial port receives ‘q’

Change back to regular mode

CommercializationBusiness Opportunities

City Planning Project New infrastructure

Integrate with public transit Improve service efficiency

Incentives for insurance companies Enhance road safety

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

RF Module (Per Intersection)

RF Chip + Antenna $49.50

Subtotal $49.50

GPS Module (Per Vehicle)

GPS Chip $44.90

Antenna $12.90

RF Chip + Antenna $49.50

Subtotal $107.30

CommercializationProduct Package and Installation

Note: - All prices are in USD

Intersection Cost (15,000 intersections)

Retail Quote ($100 per unit) $150,000

GPS Module (Per Vehicle) (400 EMVs)

Retail Quote ($250 per unit) $100,000

Integration and Installation

Retail Quote ($75 per work hour) $250,000

Total $500,000

Budget Components Market Price Project Cost

GPS Module

GPS Chip $44.90 $44.90

GPS Antenna $12.90 $12.90

Subtotal $57.80 $57.80

RF Module

2 x RF Dev Board $650 $0.00

2 x RF Evaluation Kit (includes antenna) Included in dev kit $0.00

Subtotal $650 $0.00

Traffic Light Module

Cypress MCU Dev Board $440 $0.00

Miscellaneous

Batteries $20.00 $20.00

LEDs $25.00 $25.00

Cables $20.00 $20.00

Subtotal $65.00 $65.00

Total $1213.80 $122.80

TimelineProject Milestone

September 1, 2008 December 17, 2008

October 1, 2008 November 1, 2008 December 1, 2008

October 6, 2008

Written progress report completed

October 14, 2008Functional Spec

Completed

November 3, 2008Design Spec Completed

December 17, 2008

Lab Journal/Project File/Post-Mortem Report Completed

December 15, 2008Project

Demonstration

September 22, 2008Proposal

Completed

September 1, 2008Project Start

December 12, 2008Integration/Debugging

Completed

December 1, 2008Module Hardware/Software Completed

TimelineSchedule

Gantt chartID Start Finish Duration

Nov 2008Oct 2008 Dec 20089/1112/1031/8 4/123/11 28/1219/1014/9 5/10 2/11 30/1126/10 21/1221/9 7/1216/11

1 32d10/14/20089/1/2008

2 16d9/22/20089/1/2008Proposal

3 2d10/6/200810/3/2008Written Progress Report

4 17d10/14/20089/22/2008Functional Specification

5 31d11/3/20089/22/2008Design Specification

6 32d11/26/200810/14/2008Hardware Implementation

7 19d11/7/200810/14/2008GPS Module

8 26d11/21/200810/17/2008RF Module

23d11/26/200810/27/2008Traffic Light Control Module

10 31d11/26/200810/15/2008Software Implementation

11 24d12/10/200811/7/2008System Integration/Debugging/Testing

12 19d12/3/200811/7/2008GPS/RF Module

13 23d12/10/200811/10/2008Traffic Light Control Module

14 78d12/17/20089/1/2008Documentation

Sep 200828/9 14/127/9

9

Research

Task Name

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

Conclusion

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

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)

Questions?