safety enhancement features for 21 st century automobile
Download
Skip this Video
Download Presentation
Safety Enhancement Features for 21 st Century Automobile

Loading in 2 Seconds...

play fullscreen
1 / 11

Safety Enhancement Features for 21 st Century Automobile - PowerPoint PPT Presentation


  • 206 Views
  • Uploaded on

Safety Enhancement Features for 21 st Century Automobile. Don VanderLaan Jeremy Konz Natalie Hannon Tom Aprik Sponsor: General Motors. Presentation Outline. Purpose Design Parameters Hardware Algorithms Proof of Concept. Purpose.

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'Safety Enhancement Features for 21 st Century Automobile' - ivanbritt


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
safety enhancement features for 21 st century automobile

Safety Enhancement Features for 21st Century Automobile

Don VanderLaan

Jeremy Konz

Natalie Hannon

Tom Aprik

Sponsor: General Motors

presentation outline

Presentation Outline

Purpose

Design Parameters

Hardware

Algorithms

Proof of Concept

purpose
Purpose

Increase automobile safety and driver awareness with an “alerting system”

Detect an emergency siren audio signal

Turn down the volume of the car stereo

Display an indicator symbol on the dashboard

background
Background

Increase safety in conjunction with the Emergency Vehicle Safety Initiative, a partnership between the U.S. Fire Administration (USFA) and the Society of Automotive Engineers (SAE).

design objectives
Design Objectives
  • Develop Matlab code for signal processing
  • Program microcontroller with signal processing code
  • Interface components to build prototype
  • Test prototype for reliability
  • Package prototype for automobile
hardware
Hardware
  • Main processing is done in dsPIC unit
  • dsPIC is combination DSP/µC by Microchip
    • Eliminates need for separate DSP and µC
  • Specialized DSP algorithm libraries for convolution
  • Code written in C
slide7
Hardware ctd.

External EEPROM is needed to store microphone waveform data in combination with original siren waveform

Specialized microphone could be fitted, our project will be generic

Radio speaker control relay

LED, would be CAN message to instrument cluster in real car

siren detection algorithm
Siren Detection Algorithm

Siren will be detected using a matched filter

Equivalent to convolution without the time reversal

Threshold the output to determine if the siren is present

Must be robust enough to work under 10% Doppler shift

proof of concept
Proof of Concept
  • Tested with a SNR of 0.27 – far below practical conditions
  • Convolved output clearly indicates a siren present
proof of concept ctd
Proof of Concept ctd.
  • Tested with SNR of 0.27 and a Doppler shift of 10%
  • Convolved output still indicates siren present
conclusion
Conclusion
  • Questions?
  • Next Steps
ad