Magnetic lateral guidance sensors for automated highways

Donald R. Stauffer; Mike Barrett; Nick Demma; Thomas J. Dahlin

doi:10.1117/12.228911

27 December 1995 Magnetic lateral guidance sensors for automated highways

Donald R. Stauffer, Mike Barrett, Nick Demma, Thomas J. Dahlin

Proceedings Volume 2592, Collision Avoidance and Automated Traffic Management Sensors; (1995) https://doi.org/10.1117/12.228911
Event: Photonics East '95, 1995, Philadelphia, PA, United States

Abstract

Automated highway systems will need sensors both for longitudinal guidance (intelligent speed control) and for lateral guidance relative to the center of the traffic lane. A magnetic sensor combined with a practical magnetic highway marking system provides an all-weather, cost effective lateral guidance technique. A practical system must have robust performance under all weather operation, and be producible at a reasonable cost. Previous schemes have suffered from weather related performance problems, cost of the sensor portion on the vehicle, or the cost of the highway infrastructure. The subject system uses a high sensitivity magneto-resistive sensor and a magnetic marking tape which is a variant of existing traffic marking tapes. In addition to providing lateral position information, the system can encode ancillary data that can be received by the vehicle sensor. An important data item is the road curvature for the next segment of road. If the system operates with closed loop autonomous lateral control, such feedforward data is important for good performance at highway speeds. A preliminary feasibility demonstration illustrated that the system provides a high signal to noise ratio, and good accuracy.

Citation Download Citation

Donald R. Stauffer, Mike Barrett, Nick Demma, and Thomas J. Dahlin "Magnetic lateral guidance sensors for automated highways", Proc. SPIE 2592, Collision Avoidance and Automated Traffic Management Sensors, (27 December 1995); https://doi.org/10.1117/12.228911

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available