Lane Keeping Based on Location Technology

This article examines a new approach to lane-departure warning systems using an alternative to the traditional global positioning system (GPS) and inertial system (INS) that are subject to satellite blockages and signal masking. This proposal instead incorporates the GPS/INS systems into an overall system using a vision-based lane-recognition system (VBLR). Such a system is necessitated by the growing possible accuracy of vehicle positioning allowed by burgeoning technology, as now differentially corrected centimeter-level positioning is now possible. Researchers note that a conventional inertial measurement unit (IMU) heading error is nearly indistinguishable from acceleration-related errors found with the current GPS/INS apparatus. IMUs are constructed of micro-machined micro-electro-mechanical-systems (MEMS) equipped with gyros and accelerometers. The addition of VBLR bolsters such a positioning unreliability through its detection of lateral position jumps and its decoupling of the accelerometer bias and roll error, although this adds little to heading improvement.

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  • Authors:
    • Wang, Jin
    • Schroedl, Stefan
    • Mezger, Klaus
    • Ortloff, Roland
    • Joos, Armin
    • Passegger, Thomas
  • Publication Date: 2005-9

Language

  • English

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 01010943
  • Record Type: Publication
  • Source Agency: UC Berkeley Transportation Library
  • Files: BTRIS, TRIS
  • Created Date: Nov 30 2005 12:54PM