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Virtual Rumble Strip MDR. Advisor: Prof. Kelly Members: Matt Auby Steve Leblanc Joachim Weyl Mariah Winkler. Background and Motivation. Single Vehicle Roadway Departure (SVRD) Account for 20% of all crashes, but nearly 50% of all fatal crashes - PowerPoint PPT Presentation
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Department of Electrical and Computer Engineering
Advisor: Prof. KellyMembers: Matt Auby
Steve Leblanc Joachim Weyl Mariah Winkler
Virtual Rumble Strip MDR
2Matt Auby Steve Leblanc Joachim Weyl Mariah Winkler
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.
3Matt Auby Steve Leblanc Joachim Weyl Mariah Winkler
System Block Diagram
4Matt Auby Steve Leblanc Joachim Weyl Mariah Winkler
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.
5Matt Auby Steve Leblanc Joachim Weyl Mariah Winkler
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
6Matt Auby Steve Leblanc Joachim Weyl Mariah Winkler
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.
7Matt Auby Steve Leblanc Joachim Weyl Mariah Winkler
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
8Matt Auby Steve Leblanc Joachim Weyl Mariah Winkler
Analog Sensor with Digital Output Circuit
9Matt Auby Steve Leblanc Joachim Weyl Mariah Winkler
Operation of Neighboring Sensors
10Matt Auby Steve Leblanc Joachim Weyl Mariah Winkler
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.
11Matt Auby Steve Leblanc Joachim Weyl Mariah Winkler
Prototype Five Sensor Array
12Matt Auby Steve Leblanc Joachim Weyl Mariah Winkler
Paint Line Width
13Matt Auby Steve Leblanc Joachim Weyl Mariah Winkler
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
14Matt Auby Steve Leblanc Joachim Weyl Mariah Winkler
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.
15Matt Auby Steve Leblanc Joachim Weyl Mariah Winkler
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
16Matt Auby Steve Leblanc Joachim Weyl Mariah Winkler
Warning System Prototype Drawing of the Warning System
17Matt Auby Steve Leblanc Joachim Weyl Mariah Winkler
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
18Matt Auby Steve Leblanc Joachim Weyl Mariah Winkler
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
19Matt Auby Steve Leblanc Joachim Weyl Mariah Winkler
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.