Invention Application
US20080097686A1 Travel-time prediction apparatus, travel-time prediction method, traffic information providing system and program
有权
旅行时间预测装置,旅行时间预测方法,交通信息提供系统和程序
- Patent Title: Travel-time prediction apparatus, travel-time prediction method, traffic information providing system and program
- Patent Title (中): 旅行时间预测装置,旅行时间预测方法,交通信息提供系统和程序
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Application No.: US11907567Application Date: 2007-10-15
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Publication No.: US20080097686A1Publication Date: 2008-04-24
- Inventor: Junichi Takeuchi , Takayuki Nakata , Takashi Fujita , Yasuhiro Sugisaki
- Applicant: Junichi Takeuchi , Takayuki Nakata , Takashi Fujita , Yasuhiro Sugisaki
- Assignee: NEC CORPORATION,NEC Soft, Ltd.
- Current Assignee: NEC CORPORATION,NEC Soft, Ltd.
- Priority: JP2006-286551 20061020; JP2007-033769 20070214
- Main IPC: G05D3/20
- IPC: G05D3/20 ; G07C1/10

Abstract:
Disclosed is a travel-time prediction apparatus that is capable of making a mid-term prediction of travel time accurately by combining present conditions and statistical information. The apparatus includes a travel-time transition pattern database storing travel-time transition patterns obtained by statistically processing past time-series data of each road link according to type of data. Upon accepting a travel-time transition pattern corresponding to a specified link and day type from the database, the apparatus calculates conversion parameters of a travel-time transition pattern for which an error between the travel-time transition pattern and a sequentially input travel-time time-series data will be reduced, and then makes a prediction using a prediction function obtained by converting the travel-time transition pattern by the calculated conversion parameters. The calculated predicted value and the conversion parameters are distributed as traffic information.
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