EcoCar User Interface Mid Semester Presentation Senior Design II October 2, 2012

Design Team Sam Knight Computer Engineer DBus Programming CAN Bus Programming Lukas Cox Electrical Engineer Dictionary Training Physical Interfacing Adam Johns Computer Engineer Alternatives Researching Recognition Programming Renz Santos Computer Engineer Recognition Programming Website Design Dr. Marshall Molen Advisor

Contents Problem and Solution System Overview Model Technical and Practical Constraints Refinements and Progress – Accuracy – Installation Package Testing Senior Design II Timeline References

Problem and Solution

Problem The increasing technology in vehicles today unfortunately increases the amount of danger to drivers and passengers alike. “Driver distraction is a leading cause of crashes, although the exact figures are difficult to gauge because of the unreliability of the data” [1].

Solution EcoCar User Interface – Allows car’s infotainment center to be controlled by voice – Helps lower the amount of attention needed to run modules on car – Displays critical information relating to the vehicle

System Overview Microphone CAN Bus Computer Voice Recognition Control Overview, Radio, Media, GPS, Diagnostic Modules Projector

Model

Technical and Practical Constraints

Technical Constraints NameDescription AccuracyThe system must correctly identify spoken commands with 90% accuracy. Latency The EUI must acknowledge commands within 250ms. Compatibility The system must run on Freescale SABRE platform computer. Communication The EUI must communicate with CAN bus. Vocabulary The system must recognize 12 voice commands

Practical Constraints TypeNameDescription ManufacturabilitySize The EUI must fit below the passenger seat and not obstruct the driver. SustainabilityDurabilityThe system must be able to withstand the vibrations of normal driving conditions.

Manufacturability Fit below passenger seat Microphone < 4”x2”x2” Projector < 1” depth [2]

Sustainability No short term problems Works as long as hardware does not fail Withstand normal car vibrations

Refinements and Progress

Accuracy Augment the audio recognition corpus Driver dependent voice library

Enhancement Process Record a series of phrases from user Sync the audio to the command keywords Process into.mfc files Assimilate into existing corpus

Installation Package Available as download or from PPA Checks system for correct dependencies Automatically installs program Launch script checks Java version

Debian Package Control File Package: eui Version: 1.0 Section: contrib/misc Priority: optional Architecture: all Maintainer: Sam Knight Homepage: Depends: libunixsocket-java, libmatthew-java-doc Description: Ecocar User Interface Voice recognition infotainment system designed for Mississippi State University Ecocar

Testing Reevaluate the improved accuracy EUI Test CAN Bus communication Seamless automatic install in any new version of EcoCar with installation package

Senior Design II Timeline AugustSeptemberOctoberNovember Software Refinement Projector Mounting Software Integration Testing

References [1] (2012, February 22). “Music Related Car Crashes,” in Car Accidents [Online]. Available: car-accidents-causes.htmlhttp:// car-accidents-causes.html [2] Picture (2012, February 21). “Pico Projector,” in MicroVision [Online]. Available:

EcoCar User Interface Mid Semester Presentation Senior Design II October 2, 2012