ecocar user interface mid semester presentation senior design ii october 2, 2012
TRANSCRIPT
EcoCar User Interface
Mid Semester PresentationSenior Design IIOctober 2, 2012
Design Team
Sam KnightComputer Engineer
DBus ProgrammingCAN Bus Programming
Lukas CoxElectrical Engineer
Dictionary TrainingPhysical Interfacing
Adam JohnsComputer Engineer
Alternatives ResearchingRecognition Programming
Renz SantosComputer Engineer
Recognition ProgrammingWebsite Design
Dr. Marshall MolenAdvisor
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 OverviewMicrophone CAN Bus
Computer
Voice Recognition Control
Overview, Radio, Media, GPS, Diagnostic Modules
Projector
Model
Technical and Practical Constraints
Technical ConstraintsName Description
Accuracy The 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 ConstraintsType Name Description
Manufacturability Size The EUI must fit below the passenger seat and not obstruct the driver.
Sustainability Durability The 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 FilePackage: euiVersion: 1.0Section: contrib/miscPriority: optionalArchitecture: allMaintainer: Sam Knight <[email protected]>Homepage:http://www.ece.msstate.edu/courses/design/2012/team_knightDepends: libunixsocket-java, libmatthew-java-docDescription: 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 TimelineAugust September October November
Software Refinement
Projector Mounting
Software Integration
Testing
References[1] (2012, February 22). “Music Related Car Crashes,” in Car Accidents [Online]. Available:
http://www.car-accidents.com/music-car-accidents-causes.html [2] Picture (2012, February 21). “Pico Projector,” in MicroVision [Online]. Available:
http://www.microvision.com/pico_projector_displays/index.html\
EcoCar User Interface
Mid Semester PresentationSenior Design IIOctober 2, 2012