Title:
MARKER DETECTION METHOD AND VEHICLE SYSTEM
Document Type and Number:
WIPO Patent Application WO/2018/230422
Kind Code:
A1
Abstract:
A marker detection method in which a sensor unit (11) that includes a plurality of magnetic sensors that are arranged in a vehicle width direction is used to detect magnetic markers (10) that have been laid in a road. The detection method involves generating a feature value that represents the symmetry of a magnetism distribution that is a distribution of magnetism values measured by the sensors of the sensor unit (11) and performing threshold value processing related to the feature value so as to determine whether it is possible that there are sources of magnetism that are not the magnetic markers (10) and are causing disturbances, which suppresses misdetections.
Inventors:
YAMAMOTO MICHIHARU (JP)
NAGAO TOMOHIKO (JP)
AOYAMA HITOSHI (JP)
NAGAO TOMOHIKO (JP)
AOYAMA HITOSHI (JP)
Application Number:
PCT/JP2018/021791
Publication Date:
December 20, 2018
Filing Date:
June 07, 2018
Export Citation:
Assignee:
AICHI STEEL CORP (JP)
International Classes:
G01V3/08; G01B7/00; G05D1/02
Foreign References:
| JP2008077349A | 2008-04-03 | |||
| JP2003288117A | 2003-10-10 | |||
| JPH08201006A | 1996-08-09 | |||
| US5347456A | 1994-09-13 | |||
| JP2005122256A | 2005-05-12 | |||
| JP2005202478A | 2005-07-28 |
Other References:
See also references of EP 3640683A4
Attorney, Agent or Firm:
OIKE Tatsuya (JP)
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