Title:
TRAIN POSITION ESTIMATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/171821
Kind Code:
A1
Abstract:
A train position estimation device which calculates the position of a vehicle traveling on a predetermined path and comprises a surroundings shape measurement unit that is installed in the vehicle and measures the shape of the surroundings of the current location of the vehicle and a map storage unit for storing surroundings shape data at positions measured in advance, the train position estimation device being characterized by comprising a start position estimation unit for storing the probability of presence of the vehicle at each position; a map retrieval section determination device for outputting surroundings shape data for each position in descending order of presence probability; and a matching processing device that compares the surroundings shape data for the current location with the retrieved surroundings shape data and outputs the position for which the difference therebetween is equal to or less than a predetermined threshold value.
Inventors:
TSUTSUMI YUHI (JP)
ODA ATSUSHI (JP)
KATSUTA KEIICHI (JP)
TOKUYAMA KAZUO (JP)
ODA ATSUSHI (JP)
KATSUTA KEIICHI (JP)
TOKUYAMA KAZUO (JP)
Application Number:
PCT/JP2019/002725
Publication Date:
September 12, 2019
Filing Date:
January 28, 2019
Export Citation:
Assignee:
HITACHI LTD (JP)
International Classes:
B61L25/02; G01S17/89; G01C21/28
Foreign References:
| JP2008247154A | 2008-10-16 | |||
| JP2004005593A | 2004-01-08 | |||
| JP2016162013A | 2016-09-05 | |||
| JP2017001638A | 2017-01-05 | |||
| JP2016162013A | 2016-09-05 |
Other References:
See also references of EP 3763597A4
Attorney, Agent or Firm:
PATENT CORPORATE BODY DAI-ICHI KOKUSAI TOKKYO JIMUSHO (JP)
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