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公开(公告)号：EP2956745A1
公开(公告)日：2015-12-23
申请号：EP14751517.5
申请日：2014-02-07
发明人： TASHIRO, Hiroyuki , HIROO, Kei , NISHINO, Yoshitaka , KODAN, Tomoki , NAKAMURA, Motohiro , KOSHIBA, Sadahiro , MAEKAWA, Kazuteru
CPC分类号： G08G1/0112 , G01C21/32 , G08G1/0129 , G08G1/0141 , G09B29/106
摘要： An analyzer of the invention adequately analyzes a change in road network by using probe information generated with driving of a vehicle. This analyzer determines a traffic amount of vehicles passing through a specified section included in the road network from a plurality of the probe information accumulated over a predetermined period. The analyzer also determines a discontinuity rate, which is a rate of incidents that vehicle locations are discontinuous in the specified section, from the plurality of probe information accumulated over the predetermined period. The analyzer detects a change in the road network, based on a degree of change between traffic amounts in two different periods with respect to the specified section included in the road network and a degree of change between discontinuity rates in the two different periods. The detected change in the road network can be used for survey of the road network. [Drawing selected] Fig. 1
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2.发明公开
公开(公告)号：EP3190386A1
公开(公告)日：2017-07-12
申请号：EP15837646.7
申请日：2015-08-31
发明人： TANIZAKI, Daisuke , HIYOKAWA, Toyoji , KATO, Tatsuya , NAKAMURA, Motohiro , WATANABE, Kazunori , TASHIRO, Hiroyuki , HIROO, Kei
IPC分类号： G01C21/34 , G08G1/09 , G08G1/0969
CPC分类号： G01C21/3453 , G01C21/26 , G01C21/30 , G01C21/34 , G01C21/3492 , G01C21/36 , G01C21/3691 , G01S19/47 , G01S19/49 , G08G1/09 , G08G1/0969 , G08G1/20
摘要： A route search system, a route search method, and a computer program capable of finding a more appropriate route for a user are provided. A probe center 4 collects probe information from vehicles 3 that travel across the country, and a navigation apparatus 2 calculates the link cost of a link on the basis of the probe information in the case where a search for a recommended route is performed (S2). The reliability degree of the calculated link cost is specified on the basis of the number of pieces of the probe information used to calculate the link cost of the link (S3). The value of the link cost, the reliability degree of which has been specified, is corrected on the basis of the specified reliability degree (S6). A search for a recommended route is performed using the corrected value of the link cost (S7).
摘要翻译： 提供了能够为用户找到更合适的路线的路线搜索系统，路线搜索方法和计算机程序。 探测中心4收集来自遍布全国的车辆3的探测信息，导航装置2在进行搜索推荐路线的情况下基于探测信息计算路段的路段成本（S2） 。 基于用于计算链路的链路成本的探测信息的条数（S3）来指定计算出的链路成本的可靠性程度。 根据规定的可靠度对链路成本的可靠度已被确定的值进行修正（S6）。 使用链路成本的修正值执行对推荐路线的搜索（S7）。
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公开(公告)号：EP3190386B1
公开(公告)日：2019-02-06
申请号：EP15837646.7
申请日：2015-08-31
发明人： TANIZAKI, Daisuke , HIYOKAWA, Toyoji , KATO, Tatsuya , NAKAMURA, Motohiro , WATANABE, Kazunori , TASHIRO, Hiroyuki , HIROO, Kei
IPC分类号： G01C21/34 , G08G1/00 , G08G1/09 , G08G1/0969
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