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    • 31. 发明授权
    • Traffic information distribution method, traffic information distribution apparatus and in-vehicle terminal
    • 交通信息分配方法,交通信息分配装置和车载终端
    • US08700293B2
    • 2014-04-15
    • US12020188
    • 2008-01-25
    • Mariko OkudeKenichiro YamaneMasatoshi KumagaiJunsuke FujiwaraHirotaka Takahashi
    • Mariko OkudeKenichiro YamaneMasatoshi KumagaiJunsuke FujiwaraHirotaka Takahashi
    • G01C21/00
    • G08G1/096775G08G1/096716G08G1/096741
    • Disclosed is a traffic information distribution apparatus 1 including date-time information in traffic information acquired by the traffic information acquire unit 12 or generated by the traffic information prediction unit, and accumulates the traffic information in the traffic information DB 13. When the traffic information distribution apparatus 1 receives distribution request information transmitted from the in-vehicle terminal 5, based on date-time information of reference traffic information held by the in-vehicle terminal 5 included in the distribution request information, the traffic information distribution apparatus 1 retrieves traffic information including the same date-time information as the date-time information of the reference traffic information from the traffic information DB 13. Then, difference traffic information generation unit 18 generates difference traffic information between the retrieved traffic information and traffic information to be distributed, and the traffic information distribution apparatus 1 distributes the generated difference traffic information to the in-vehicle terminal 5.
    • 公开了一种交通信息分配装置1,其包括由交通信息获取单元12获取或由交通信息预测单元生成的交通信息中的日期时间信息,并将交通信息累积在交通信息DB13中。当交通信息分布 装置1根据分发请求信息中包含的车载终端5所保持的参照交通信息的日期时间信息,接收从车载终端5发送的分发请求信息,交通信息发布装置1检索包含 与来自交通信息DB13的参考交通信息的日期 - 时间信息相同的日期时间信息。然后,差分交通信息生成单元18生成检索到的交通信息和要分发的交通信息之间的差异交通信息, tr 功能信息分配装置1将生成的差分交通信息分配给车内终端5。
    • 32. 发明申请
    • Route Search System
    • 路线搜索系统
    • US20120209524A1
    • 2012-08-16
    • US13396811
    • 2012-02-15
    • Mariko OkudeTomoaki HirutaMasatoshi Kumagai
    • Mariko OkudeTomoaki HirutaMasatoshi Kumagai
    • G01C21/34
    • G01C21/343G01C21/3492
    • A route search system includes: a reception unit that receives a search request for a plurality of first routes, that are routes between all the combinations of two of a plurality of points; a search unit that, when the search request is received by the reception unit, searches the plurality of first routes based upon a search condition included in the search request; and a supply unit that transmits route information for the plurality of first routes searched by the search unit. Both a number of times the search request is received by the reception unit, and a number of times route information is transmitted by the supply unit, are smaller than a number of points in the plurality of points.
    • 路线搜索系统包括:接收单元,其接收对多个第一路由的搜索请求,所述搜索请求是多个点中的两个的所有组合之间的路由; 搜索单元,当所述接收单元接收到所述搜索请求时,基于所述搜索请求中包括的搜索条件来搜索所述多个第一路由; 以及提供单元,其发送由搜索单元搜索的多个第一路线的路线信息。 由接收单元接收到搜索请求的次数以及由提供单元发送的次数路径信息都小于多个点中的点数。
    • 37. 发明申请
    • ROUTE SEARCHING METHOD AND ROUTE SEARCHING SYSTEM
    • 路由搜索方法和路由搜索系统
    • US20080319645A1
    • 2008-12-25
    • US12143512
    • 2008-06-20
    • Masatoshi KumagaiTomoaki HirutaToshiaki Kono
    • Masatoshi KumagaiTomoaki HirutaToshiaki Kono
    • G01C21/34
    • G01C21/3461G01C21/3484G08G1/01G08G1/096811G08G1/096844
    • It is an object of the present invention to provide a route searching which can reflect know-how such as easiness of running included in the probe car data in an entire route from departure place to destination.A center device detects main branch nodes from probe car data received from an in-vehicle terminal device by means of a main branch node detecting section. A probe car data dividing section divides the probe car data into probe segments by the main branch nodes. A route dividing section divides an initial route generated by a initial route generating section based on specified departure place and destination, and a derived route generating section substitutes probe segments for the divided routes so as to generate derived routes. The route selecting section scores the derived routes and select one so as to provide a recommended route in which know-how such as easiness of running included in the probe car data is reflected.
    • 本发明的目的是提供一种能够在从出发地到目的地的整个路线中反映包括在探测车数据中的运行容易性的专有技术的路线搜索。 中央设备通过主分支节点检测部分从车载终端设备接收的探测车数据中检测主分支节点。 探测车数据分割部通过主分支节点将探测车数据分割成探头段。 路线分割部根据指定的出发地和目的地,对由初始路线生成部生成的初始路线进行分割,导出路线生成部将代入分割路线的探测段代入导出路线。 路线选择部分对得到的路线进行评分,并选择一个路径,以提供其中反映了探测车辆数据中包括的运行容易性等专有技术的推荐路线。
    • 38. 发明申请
    • Traffic Information Interpolation System
    • 交通信息插值系统
    • US20080114529A1
    • 2008-05-15
    • US11937668
    • 2007-11-09
    • Tomoaki HirutaMasatoshi KumagaiKoichiro Tanikoshi
    • Tomoaki HirutaMasatoshi KumagaiKoichiro Tanikoshi
    • G06F17/18
    • G08G1/0104
    • In a traffic information system, the principal component analysis of the floating car data collected in the past is performed for each traffic area. From among the bases representing the traffic data collected on the road-links in the traffic area, the bases which have strong correlation to the road-links on which real-time traffic data were collected are selected. The weighting coefficients for the selected bases are calculated by projecting the real-time traffic data onto the selected bases. The traffic estimation data are calculated by linearly combining the selected bases with the obtained weighting coefficients as the coefficients of the respective bases. The calculated traffic estimation data are used for the interpolation of the road-links on which the real-time traffic data were not collected.
    • 在交通信息系统中,对每个交通区域执行过去收集的浮动车数据的主成分分析。 从代表在交通区域的道路链路上收集的交通数据的基数中,选择与采集实时交通数据的道路链路具有强相关性的基础。 通过将实时业务数据投影到所选择的基站上来计算所选择的基站的加权系数。 通过将所选择的碱基与所获得的加权系数线性组合作为各个碱基的系数来计算交通估计数据。 所计算的交通量估计数据用于未收集实时交通数据的道路链路的插值。