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    System and method for collecting and distributing traffic information
    1.
    发明授权
    System and method for collecting and distributing traffic information 有权
    收集和分发交通信息的系统和方法

    公开(公告)号：US07693650B2

    公开(公告)日：2010-04-06

    申请号：US11848343

    申请日：2007-08-31

    申请人： Masatoshi Kumagai ,  Tomoaki Hiruta ,  Mariko Okude ,  Koichiro Tanikoshi

    发明人： Masatoshi Kumagai ,  Tomoaki Hiruta ,  Mariko Okude ,  Koichiro Tanikoshi

    IPC分类号： G08G1/00

    CPC分类号： G08G1/0104

    摘要： In a center apparatus, a feature space projection processing unit performs a feature space projection process for probe data corresponding to a road section which are stored in a current probe data storage unit to extract the feature data, and a change point detecting unit; an event section partitioning unit and an event assigning unit determine a road section corresponding to the feature data, and assign the event information to the determined road section; and an event information distributing unit distributes the event information assigned to the road section. In a vehicle-installed terminal apparatus, a probe data partitioning unit and an orthogonal component decomposition unit performs processes of partitioning and orthogonal component decomposition of the probe data using a feature score vector obtained from the center apparatus, to thereby reduce the probe data to be uplinked.

    摘要翻译： 在中心设备中，特征空间投影处理单元对存储在当前探测数据存储单元中的与路段相对应的探测数据执行特征空间投影处理以提取特征数据，以及变化点检测单元; 事件部分割单元和事件分配单元确定与特征数据相对应的道路段，并将事件信息分配给所确定的道路段; 并且事件信息分发单元分配分配给道路部分的事件信息。 在车载终端装置中，探测数据划分部和正交成分分解部使用从中心装置得到的特征得分向量来进行探测数据的分割和正交成分分解的处理，从而将探测数据减少为 上行。

    Dynamic prediction of traffic congestion by tracing feature-space trajectory of sparse floating-car data
    2.
    发明授权
    Dynamic prediction of traffic congestion by tracing feature-space trajectory of sparse floating-car data 有权
    通过追踪稀疏浮动车辆数据的特征空间轨迹来动态预测交通拥堵

    公开(公告)号：US07542844B2

    公开(公告)日：2009-06-02

    申请号：US12193565

    申请日：2008-08-18

    申请人： Masatoshi Kumagai ,  Tomoaki Hiruta ,  Mariko Okude ,  Koichiro Tanikoshi

    发明人： Masatoshi Kumagai ,  Tomoaki Hiruta ,  Mariko Okude ,  Koichiro Tanikoshi

    IPC分类号： G08G1/00

    CPC分类号： G08G1/0141 ,  G08G1/0112 ,  G08G1/0116 ,  G08G1/0129

    摘要： A traffic situation is predicted based on the correlation in the traffic situation between road sections. A base vector generation unit generates the base vectors constituting a feature space representing the correlation between a plurality of links by making a principal component analysis for the necessary time in the past recorded in a necessary time database. A projection point trajectory generation unit records a projection point trajectory of projecting the necessary time in the past recorded in the necessary time database to the feature space in a projection point database. A feature space projection unit projects the necessary time at present to the feature space, and a neighboring projection point retrieval unit retrieves a past projection point in the neighborhood of the concerned projection point from the projection point database, and a projection point trajectory trace unit traces the trajectory of past projection points starting from the retrieved neighboring projection point for a prediction target time width, and an inverse projection unit inversely projects the end point of the concerned trajectory to calculate the predicted value of the necessary time.

    摘要翻译： 根据路段交通情况的相关性预测交通状况。 基矢量生成单元通过对必要时间数据库中记录的过去必要时间进行主成分分析，生成构成表示多个链接之间的相关性的特征空间的基本矢量。 投影点轨迹生成单元将投影点轨迹，将投影点数据库中记录的过去的必要时间投影到投影点数据库中的特征空间。 特征空间投影单元将当前所需的时间投射到特征空间，并且相邻投影点检索单元从投影点数据库检索相关投影点附近的过去投影点，并且投影点轨迹跟踪单元跟踪 从所检索的相邻投影点开始的预测目标时间宽度的过去投影点的轨迹，反投影单元相反地投影相关轨迹的终点以计算所需时间的预测值。

    System and Method for Collecting and Distributing Traffic Information
    3.
    发明申请
    System and Method for Collecting and Distributing Traffic Information 有权
    收集和分发交通信息的系统和方法

    公开(公告)号：US20080059051A1

    公开(公告)日：2008-03-06

    申请号：US11848343

    申请日：2007-08-31

    申请人： Masatoshi KUMAGAI ,  Tomoaki Hiruta ,  Mariko Okude ,  Koichiro Tanikoshi

    发明人： Masatoshi KUMAGAI ,  Tomoaki Hiruta ,  Mariko Okude ,  Koichiro Tanikoshi

    IPC分类号： G08G1/01

    CPC分类号： G08G1/0104

    摘要： In a center apparatus, a feature space projection processing unit performs a feature space projection process for probe data corresponding to a road section which are stored in a current probe data storage unit to extract the feature data, and a change point detecting unit; an event section partitioning unit and an event assigning unit determine a road section corresponding to the feature data, and assign the event information to the determined road section; and an event information distributing unit distributes the event information assigned to the road section. In a vehicle-installed terminal apparatus, a probe data partitioning unit and an orthogonal component decomposition unit performs processes of partitioning and orthogonal component decomposition of the probe data using a feature score vector obtained from the center apparatus, to thereby reduce the probe data to be uplinked.

    摘要翻译： 在中心设备中，特征空间投影处理单元对存储在当前探测数据存储单元中的与路段相对应的探测数据执行特征空间投影处理以提取特征数据，以及变化点检测单元; 事件部分割单元和事件分配单元确定与特征数据相对应的道路段，并将事件信息分配给所确定的道路段; 并且事件信息分发单元分配分配给道路部分的事件信息。 在车载终端装置中，探测数据划分部和正交成分分解部使用从中心装置得到的特征得分向量来进行探测数据的分割和正交成分分解的处理，从而将探测数据减少为 上行。

    Method and system for route searching, and navigation apparatus using the same
    4.
    发明授权
    Method and system for route searching, and navigation apparatus using the same 有权
    用于路线搜索的方法和系统，以及使用该方法和系统的导航装置

    公开(公告)号：US08255162B2

    公开(公告)日：2012-08-28

    申请号：US12188040

    申请日：2008-08-07

    申请人： Mariko Okude ,  Masatoshi Kumagai ,  Takumi Fushiki ,  Koichiro Tanikoshi

    发明人： Mariko Okude ,  Masatoshi Kumagai ,  Takumi Fushiki ,  Koichiro Tanikoshi

    IPC分类号： G01C21/34

    CPC分类号： G01C21/3484 ,  G01C21/3446

    摘要： A route searching method is provided which allows drivers having mutually similar traveling purposes and preferences to find highly convenient routes by sharing their route searching know-how. A center apparatus (1) collects probe data received from an in-vehicle terminal apparatus (5). A preference parameter creating unit (14) calculates, based on the probe data, road usage frequencies according to preference items such as vehicle type, driver age and gender, and travel purpose which can be factors for route selection and stores the calculated road usage frequencies as preference parameters in a preference parameter database (15). A route searching unit (513) included in the in-vehicle terminal apparatus (5) requests the center apparatus (1) to transmit a preference parameter similar to user attribute information (519), adjusts link costs according to the preference parameter received from the center apparatus, and determines a minimum-cost route to a destination.

    摘要翻译： 提供了一种路由搜索方法，其允许具有相互相似的旅行目的和偏好的驾驶员通过共享他们的路线搜索专有技术来找到非常方便的路线。 中心装置（1）收集从车载终端装置（5）接收的探测数据。 偏好参数创建单元（14）基于探测数据，根据诸如车辆类型，驾驶员年龄和性别的偏好项目以及可以作为路线选择的因素的旅行目的来计算道路使用频率，并存储所计算的道路使用频率 作为偏好参数数据库（15）中的偏好参数。 包括在车载终端装置（5）中的路线搜索单元（513）请求中心设备（1）发送类似于用户属性信息（519）的偏好参数，根据从 并确定到目的地的最低成本路线。

    Method and System for Route Searching, and Navigation Apparatus Using the Same
    6.
    发明申请
    Method and System for Route Searching, and Navigation Apparatus Using the Same 有权
    路线搜索的方法和系统，以及使用它的导航装置

    公开(公告)号：US20090048775A1

    公开(公告)日：2009-02-19

    申请号：US12188040

    申请日：2008-08-07

    申请人： Mariko Okude ,  Masatoshi Kumagai ,  Takumi Fushiki ,  Koichiro Tanikoshi

    发明人： Mariko Okude ,  Masatoshi Kumagai ,  Takumi Fushiki ,  Koichiro Tanikoshi

    IPC分类号： G01C21/26

    CPC分类号： G01C21/3484 ,  G01C21/3446

    摘要： A route searching method is provided which allows drivers having mutually similar traveling purposes and preferences to find highly convenient routes by sharing their route searching know-how. A center apparatus (1) collects probe data received from an in-vehicle terminal apparatus (5). A preference parameter creating unit (14) calculates, based on the probe data, road usage frequencies according to preference items such as vehicle type, driver age and gender, and travel purpose which can be factors for route selection and stores the calculated road usage frequencies as preference parameters in a preference parameter database (15). A route searching unit (513) included in the in-vehicle terminal apparatus (5) requests the center apparatus (1) to transmit a preference parameter similar to user attribute information (519), adjusts link costs according to the preference parameter received from the center apparatus, and determines a minimum-cost route to a destination.

    摘要翻译： 提供了一种路由搜索方法，其允许具有相互相似的旅行目的和偏好的驾驶员通过共享他们的路线搜索专有技术来找到非常方便的路线。 中心装置（1）收集从车载终端装置（5）接收的探测数据。 偏好参数创建单元（14）基于探测数据，根据诸如车辆类型，驾驶员年龄和性别的偏好项目以及可以作为路线选择的因素的旅行目的来计算道路使用频率，并存储所计算的道路使用频率 作为偏好参数数据库（15）中的偏好参数。 包括在车载终端装置（5）中的路线搜索单元（513）请求中心设备（1）发送类似于用户属性信息（519）的偏好参数，根据从 并确定到目的地的最低成本路线。

    Route Search System
    8.
    发明申请
    Route Search System 有权
    路线搜索系统

    公开(公告)号：US20120209524A1

    公开(公告)日：2012-08-16

    申请号：US13396811

    申请日：2012-02-15

    申请人： Mariko Okude ,  Tomoaki Hiruta ,  Masatoshi Kumagai

    发明人： Mariko Okude ,  Tomoaki Hiruta ,  Masatoshi Kumagai

    IPC分类号： G01C21/34

    CPC分类号： G01C21/343 ,  G01C21/3492

    摘要： 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.

    摘要翻译： 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。

    Route search system
    10.
    发明授权
    Route search system 有权
    路线搜索系统

    公开(公告)号：US08682583B2

    公开(公告)日：2014-03-25

    申请号：US13396811

    申请日：2012-02-15

    申请人： Mariko Okude ,  Tomoaki Hiruta ,  Masatoshi Kumagai

    发明人： Mariko Okude ,  Tomoaki Hiruta ,  Masatoshi Kumagai

    IPC分类号： G01C21/00

    CPC分类号： G01C21/343 ,  G01C21/3492

    摘要： 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.

    摘要翻译： 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。