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Jonas Bärgman, Chalmers University of Technology, Traffic Safety/Accident Prevention

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Data acquisition in euroFOT

Data acquisition in euroFOT

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  • The FESTA “V” showing where the focus of this presentation lays.
  • The focus for this presentation is on in-vehicle DAS DAS, but there are also other means of data collection
  • Several different DAS systems. This due to different systems tested and differences in experience and previous usage.
  • Many different challanges

Jonas Bärgman, Chalmers University of Technology, Traffic Safety/Accident Prevention Jonas Bärgman, Chalmers University of Technology, Traffic Safety/Accident Prevention Presentation Transcript

  • Data acquisition in euroFOT Jonas Bärgman Chalmers University of Technology Traffic Safety/Accident Prevention Göteborg, Sweden
  • Contents
    • Illustration of different approaches for Data Acquisition Systems and challenges
    • Illustration of data analysis tools and challenges.
    • Practical issues to be considered in large scale FOTs.
    September 2009 Jonas Bärgman – ITS 2009 - Stockholm
  • Project objectives and plans September 2009 Jonas Bärgman – ITS 2009 - Stockholm
  • Definition of Data Acquisition System
    • In-Vehicle DAS
    • External services – e.g. map/weather
    • Questionnaires (subjective data)
    • Background data (driver/vehicle)
    September 2009 Jonas Bärgman – ITS 2009 - Stockholm
  • In-Vehicle DAS in euroFOT
    • Different DAS system used at different sites, but with common basic methodology
      • CAN (vehicle bus) only
      • CAN + video + (extra sensing)
    September 2009 Jonas Bärgman – ITS 2009 - Stockholm
  • Challenges in in-vehicle DAS implementations in euroFOT
    • Difficult to find appropriate DAS systems for CAN+video
    • Multiple vehicle bus interfaces needed
    • Stability of the systems must be very high and require automotive spec. components (incl. EMC).
    • Making sure integrity and proprietary issues for data access are covered
    • Easy configuration and installation in vehicles
    September 2009 Jonas Bärgman – ITS 2009 - Stockholm
  • Challenges for data analysis tools in euroFOT
    • Working with huge amounts of data
      • Data processing time – database querying and calculations
      • Quality assurance in analysis
      • Database design to allow for multi user analysis and data upload
      • How to get an overview
    September 2009 Jonas Bärgman – ITS 2009 - Stockholm
  • Practical issues in large-scale FOTs
    • Vehicles, installation and configuration
    • Study design that allows for system boundary conditions
    • Quality assurance of data – definitions and implementation
    • Wireless data transfer – roaming costs
    • Handling of vehicle bus information
    • Consistency and traceability of data and analysis
    • Data storage implementation – HW/SW
    • Access rights and multi user handling
    September 2009 Jonas Bärgman – ITS 2009 - Stockholm
  • Jonas Bärgman Chalmers University of Technology/SAFER Traffic Safety/Accident Prevention Göteborg, Sweden Email: jonas.bargman@chalmers.se Thank you