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Magnetic vehicle guidance

Magnetic vehicle guidance Purpose – The purpose of this paper is to describe a system that provides the driver or the driving assistance system with the lateral position information of the vehicle on the lane in order to detect as early as possible run‐off‐road and then prevent a foreseeable crash. Design/methodology/approach – A magnetized tape deposited on the road in the middle of the lane generates a magnetic field which is detected by on‐board sensors. Depending on the distance between the tape and the sensors, accurate positioning information can be estimated. Findings – The use of at least five sensors makes it possible to obtain a 2 mm‐lateral‐positioning accuracy. Originality/value – Magnetized tapes are relatively cheap to install and provide an accurate vehicle lateral positioning with low ‐cost magneto‐resistance on‐board sensors. In addition , a magnetization variation along the tape would allow information to be coded which could be then transmitted to the driver. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Sensor Review Emerald Publishing

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Publisher
Emerald Publishing
Copyright
Copyright © 2008 Emerald Group Publishing Limited. All rights reserved.
ISSN
0260-2288
DOI
10.1108/02602280810856697
Publisher site
See Article on Publisher Site

Abstract

Purpose – The purpose of this paper is to describe a system that provides the driver or the driving assistance system with the lateral position information of the vehicle on the lane in order to detect as early as possible run‐off‐road and then prevent a foreseeable crash. Design/methodology/approach – A magnetized tape deposited on the road in the middle of the lane generates a magnetic field which is detected by on‐board sensors. Depending on the distance between the tape and the sensors, accurate positioning information can be estimated. Findings – The use of at least five sensors makes it possible to obtain a 2 mm‐lateral‐positioning accuracy. Originality/value – Magnetized tapes are relatively cheap to install and provide an accurate vehicle lateral positioning with low ‐cost magneto‐resistance on‐board sensors. In addition , a magnetization variation along the tape would allow information to be coded which could be then transmitted to the driver.

Journal

Sensor ReviewEmerald Publishing

Published: Mar 28, 2008

Keywords: Road vehicles; Road safety; Sensors; Magnetic devices

References