Electrical and Computer Engineering 10/19/06 DSRC Accident Warning System at Intersection Richa Prasad ● Raza Kanjee ● Hui Zhu ● Thai Nguyen Professor Prishro-Nik Advisor, Assistant Professor, ECE Professor Ni Advisor, Assistant Professor, CEE Team Pishro-Nik & Ni
Electrical and Computer Engineering 10/19/06 DSRC Accident Warning System at Intersection Richa Prasad ● Raza Kanjee ● Hui Zhu ● Thai Nguyen Professor.
Dec 19, 2015
Welcome message from author
This document is posted to help you gain knowledge. Please leave a comment to let me know what you think about it! Share it to your friends and learn new things together.
Transcript
Electrical and Computer Engineering
10/19/06
DSRC Accident Warning System at Intersection
Richa Prasad ● Raza Kanjee ● Hui Zhu ● Thai Nguyen
Professor Prishro-NikAdvisor, Assistant Professor, ECE
Professor NiAdvisor, Assistant Professor, CEE
Team Pishro-Nik & Ni
2Electrical and Computer Engineering
10/19/06
Background
These situations at intersections represent about:
• 65% of injury accidents
• 70% of fatal accidents
Annual fatality rate > 40,000 for more than 30 years
© P
ReV
EN
T
3Electrical and Computer Engineering
10/19/06
DesignVII DSRC
• Vehicle Infrastructure Integration
Entertainment
Safety
Traffic
Routing
Weather
Tutor • Dedicated Short Range Communication
• 5.9 GHz Frequency Band
• Allocated for VII
• IEEE Standard: 802.11p
Path Suggestion
Speed Suggestion
Pedestrian Warning
Traffic Management
© P
ReV
EN
T
4Electrical and Computer Engineering
10/19/06
DeliverablesRSU is
warned of traffic light turning red
Message sent to red car asking for speed
and position
OBU sends back speed and location
RSU calculates
whether red car will run
red light
If yes, blue car warned
1
2
3
4
GOALS
• Real-life demonstration
• Running light warning only
• Simulation of two cars
• Technical Documentation
© PReVENT © PReVENT
5Electrical and Computer Engineering
10/19/06
Principle of Operation
Traffic Light
RSU
Speeding Car
Waiting Car
5 V Power Supply
External Clock
Simulated on Microcontroller
OBU
GPS
OBU
Laptop
TransceiverInformation Signal
Control Signal
Power Supply
SpeedLocation
Log dataTransfer
Do Nothing
Calculate if car will run
red light
Traffic light turning red?
No
Yes Alarm signal
Alarm signal
Laptop
Transceiver
Laptop
Transceiver
6Electrical and Computer Engineering
10/19/06
Input/Output
GPS5 V Power Supply
Traffic Light
Simulated on Microcontroller
5 V Power Supply
External Clock
Laptop
RS232 Serial Port
O
B
ULaptop
INPUT
Speeding Car Waiting Car
GPS
Laptop
Transceiver
Laptop TransceiverAlarm signal
OUTPUT
7Electrical and Computer Engineering
10/19/06
Acceptance Test
• Successful one speeding car demonstration
• Successful warning of car running red light
• Successful real-life demonstration
8Electrical and Computer Engineering
10/19/06
Product Cost
9Electrical and Computer Engineering
10/19/06
Design Alternatives
Traffic Light
Simulated on Microcontroller
5 V Power Supply
External Clock
RSU
Laptop
Transceiver
Speeding Car
GPS
OBU
Laptop
Transceiver
Waiting Car
OBU
Laptop
Transceiver
Information Signal
Control Signal
Power Supply
• Laser Sensors
• Video Camera
• RFID Detection
• Speed Gun
GPS Alternatives
• Bridge
Transceiver Alternative
• Microcontroller
Laptop Alternative
• Expansion of Project
• Beyond Scope
• Beyond Scope
• Not accurate
• No location
• Too expensive
10Electrical and Computer Engineering
10/19/06
Proposed MDR Specifications
Aim Acceptability Test
Transceiver Set-Up Random information successfully transmitted and received
Traffic Light Successfully simulates a traffic light. Implemented on a microcontroller
GPS-Laptop Communication Speed and location of car successfully sent to OBU laptop
11Electrical and Computer Engineering
10/19/06
Proposed MDR SpecificationsApproach
Challenges
• GPS
- Serial Port Communication
Protocol
- Learn NMEA Data Protocol
• Transceiver
- Serial Port Communication
Protocol
- Learn TCP/IP
• Traffic Light
- Microcontroller Programming
Related Documents
