Title:
MOVING-BODY-ABNORMAL-NEARING DETECTION SYSTEM AND MOVING-BODY-ABNORMAL-NEARING DETECTION METHOD
Document Type and Number:
WIPO Patent Application WO/2013/186988
Kind Code:
A1
Abstract:
Provided is a moving-body-abnormal-nearing detection system capable of determining, in a short processing interval, whether moving bodies are abnormally nearing one another or not. A projection-matrix calculation means (71) calculates a first projection matrix expressing a mapping from a 3D space to a 2D plane, on the basis of the interval information of a first moving body and the interval information of a second moving body. An abnormal-nearing determination means (72) uses the first projection matrix to map the interval information of the first moving body on a line segment within the 2D plane. Whether an abnormal nearing of the first moving body and the second body will occur is determined by performing an intersect determination between the line segment and a circle, the radius of which is the threshold that is the determination reference for the occurrence or lack thereof of an abnormal nearing, and the center of which is the passing location of the second moving body.
Inventors:
TERAMOTO SACHIO (JP)
ANDO TOMOHITO (JP)
TAGATO HIROKI (JP)
KIDA KOJI (JP)
ANDO TOMOHITO (JP)
TAGATO HIROKI (JP)
KIDA KOJI (JP)
Application Number:
PCT/JP2013/003191
Publication Date:
December 19, 2013
Filing Date:
May 20, 2013
Export Citation:
Assignee:
NEC CORP (JP)
International Classes:
G08G5/04; B64F1/36
Domestic Patent References:
| WO2011114635A1 | 2011-09-22 | |||
| WO2007102367A1 | 2007-09-13 |
Foreign References:
| JP2000276696A | 2000-10-06 | |||
| JPH06168026A | 1994-06-14 |
Attorney, Agent or Firm:
IWAKABE, Fuyuki et al. (JP)
Rock face Fuyuki (JP)
Rock face Fuyuki (JP)
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