Title:
LOCATION ESTIMATION SYSTEM AND LOCATION ESTIMATION METHOD
Document Type and Number:
WIPO Patent Application WO/2024/042832
Kind Code:
A1
Abstract:
The purpose of the present disclosure is to provide a technology that can accurately estimate the location of a vehicle. One representative location estimation system of the present disclosure comprises: a railway track information storage unit that stores a railway track information database including the railway track shape at each point on a railway track; a railway track shape measurement unit that performs measurement of the railway track shape at least twice, in a train traveling on the railway track; a location measurement unit that measures the location of the train on the railway track; a section determination unit that determines a matching section in the railway track information database, on the basis of the location measured by the location measurement unit; and a railway track information matching unit that matches, in the matching section, a measured railway track shape that is the railway track shape measured by the railway track shape measurement unit, with a DB railway track shape that is a railway track shape included in the railway track information database, and estimates a point on the railway track that corresponds to the matched railway track shape as the location of the train on the railway track.
Inventors:
TSUTSUMI YUHI (JP)
IMAMOTO KENJI (JP)
SHIMIZU TAKU (JP)
TAKAHASHI NAO (JP)
IMAMOTO KENJI (JP)
SHIMIZU TAKU (JP)
TAKAHASHI NAO (JP)
Application Number:
PCT/JP2023/023079
Publication Date:
February 29, 2024
Filing Date:
June 22, 2023
Export Citation:
Assignee:
HITACHI LTD (JP)
International Classes:
B61L25/02; B60L3/00
Domestic Patent References:
| WO2020129423A1 | 2020-06-25 |
Foreign References:
| JP2019050691A | 2019-03-28 | |||
| JP2008238888A | 2008-10-09 |
Attorney, Agent or Firm:
DAI-ICHI INTERNATIONAL PATENT OFFICE, P.C. (JP)
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