Title:
TRAFFIC INFORMATION PROVIDING SYSTEM
Document Type and Number:
WIPO Patent Application WO/2014/118857
Kind Code:
A1
Abstract:
This information providing system (1) is provided with a storage unit (13) which stores difference data, a first acquisition unit (S10, S11), a difference calculation unit (S20, S22, S21, S23), a correction unit (S12, S33) and a presenting unit (S32, S35). The difference data includes difference data groups each corresponding to a road segments including multiple difference data records. Each difference data record indicates difference information about the difference between a predicted travel time needed to travel a road segment and a measured travel time, which is how long it has taken a vehicle to actually travel the road segment. The first acquisition unit acquires the predicted travel time needed for a vehicle to travel the target road segment at the current time. The difference calculation unit calculates a difference statistic by performing prescribed statistical processing on the difference data records corresponding to the target road segment. The correction unit calculates a difference-adjusted needed time by adjusting, on the basis of the difference statistic, the predicted travel time acquired by the first acquisition unit.
Inventors:
ISHIGURO YOUSUKE (JP)
Application Number:
PCT/JP2013/007382
Publication Date:
August 07, 2014
Filing Date:
December 16, 2013
Export Citation:
Assignee:
DENSO CORP (JP)
International Classes:
G01C21/26; G08G1/00; G08G1/09
Foreign References:
| JP2005242424A | 2005-09-08 | |||
| JP2005258539A | 2005-09-22 | |||
| JP2008096445A | 2008-04-24 | |||
| JP2008286803A | 2008-11-27 |
Attorney, Agent or Firm:
KIN, Junhi (JP)
Gold Junki (JP)
Gold Junki (JP)
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