Virtual Rumble Strip MDR

1. Virtual Rumble Strip MDR Advisor: Prof. Kelly Members: Matt Auby Steve Leblanc Joachim Weyl Mariah Winkler

2. Background and Motivation • Single Vehicle Roadway Departure (SVRD) • Account for 20% of all crashes, but nearly 50% of all fatal crashes • Rumble strips • Help prevent SVRD accidents in the outer lanes • What about the middle lanes? • No system in place to warn people drifting between lanes on a fast highway.

3. System Block Diagram

4. Approved MDR Specifications • Settled on a Sensor system. • Optical vs. Microwave • Settled on a Design for the Sensor Array. • Should it be two rows of sensors or should it be a V formation, how many sensors, etc. • Show that the Sensor Array gives usable results. • Show that the sensor array is providing the necessary data to give suitable feedback to the driver.

5. Alternative Sensors • Investigated Microwave Sensors • Easy measurements of distances ahead to echo objects. • Similar system designed in 1997 called the FSS Highway Stripe. • Beyond the Scope of a 1 yr. SDP • Keep original focus of an inexpensive alternative

6. Approved MDR Specifications • Settled on a Sensor system. • Optical vs. Microwave • Settled on a Design for the Sensor Array. • Should it be two rows of sensors or should it be a V formation, how many sensors, etc. • Show that the Sensor Array gives usable results. • Show that the sensor array is providing the necessary data to give suitable feedback to the driver.

7. Sensor Hardware • 4 different sensors tested • Best results came from the 701AL because it uses a Darlington configuration • The 701AL is smaller then some of the other sensors tested • 14 different colored strips tested on road surface • All bright colors appear to reflect very well while all dark colors appear to work poorly • This will help sense the road using the lines already laid down

8. Analog Sensor with Digital Output Circuit

9. Operation of Neighboring Sensors

10. Approved MDR Specifications • Settled on a Sensor system. • Optical vs. Microwave • Settled on a Design for the Sensor Array. • Should it be two rows of sensors or should it be a V formation, how many sensors, etc. • Show that the Sensor Array gives usable results. • Show that the sensor array is providing the necessary data to give suitable feedback to the driver.

11. Prototype Five Sensor Array

12. Paint Line Width

13. Car Mounted Array System • Array mounted under of the car • Single line array • 13 Sensors will be mounted under the car. • 3 Middle sensors • 10 Warning sensors

14. Approved MDR Specifications • Settled on a Sensor system. • Optical vs. Microwave • Settled on a Design for the Sensor Array. • Should it be two rows of sensors or should it be a V formation, how many sensors, etc. • Show that the Sensor Array gives usable results. • Show that the sensor array is providing the necessary data to give suitable feedback to the driver.

15. Human Factors • Visual Component • First Line of Defense • Motion Enhanced Warning Signal (MEWS) • Audio Component • Second Line of Defense • A graded signal presented in Stereo • Two separate tones

16. Warning System • Prototype Drawing of the Warning System

17. Behavioral Changes • Lane Deviation Distribution • May compress because drivers get it know how far they can deviate without being warned • Drowsiness • Driver may become less attentive to his/her surroundings

18. Looking Ahead • Sensor Array • DSP, Gain Block and Noise Filtering • Attach Prototype to RC Car • Warning System • Build the Prototype • Try to implement ways to deal with Behavioral Changes • Questions or Comments

19. Approved MDR Specifications • Settled on a Sensor system. • Optical vs. Microwave • Settled on a Design for the Sensor Array. • Should it be two rows of sensors or should it be a V formation, how many sensors, etc. • Show that the Sensor Array gives usable results. • Show that the sensor array is providing the necessary data to give suitable feedback to the driver.