Title:
ROAD CONDITION DEDUCTION DEVICE, METHOD, AND PROGRAM
Document Type and Number:
WIPO Patent Application WO/2020/250332
Kind Code:
A1
Abstract:
This road condition deduction device 2 is provided with: a reception unit 21 which receives, from each automobile, sensor information that includes location information concerning the location where the automobile is traveling and spectrum information obtained by converting an acoustic signal generated from the automobile traveling said location into a frequency domain; a first classification unit 22 which, on the basis of the location information contained in the received sensor information, classifies respective sets of the spectrum information for roads traveled by the respective automobiles; and a deduction unit 23 which deduces a road condition for each of the sets of the spectrum information classified by the first classification unit.
Inventors:
KOBAYASHI KAZUNORI (JP)
ITO HIROAKI (JP)
MURATA SHIN (JP)
ITO HIROAKI (JP)
MURATA SHIN (JP)
Application Number:
PCT/JP2019/023229
Publication Date:
December 17, 2020
Filing Date:
June 12, 2019
Export Citation:
Assignee:
NIPPON TELEGRAPH & TELEPHONE (JP)
International Classes:
G01M99/00; E01C23/01; G01H17/00
Domestic Patent References:
| WO2018159397A1 | 2018-09-07 | |||
| WO2018173631A1 | 2018-09-27 |
Foreign References:
| JP2017041159A | 2017-02-23 | |||
| JP2002243535A | 2002-08-28 | |||
| US20150260614A1 | 2015-09-17 |
Attorney, Agent or Firm:
NAKAO, Naoki et al. (JP)
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