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3 条记录 (耗时 0.017 秒)

    Dynamic Prediction of Traffic Congestion by Tracing Feature-Space Trajectory of Sparse Floating-Car Data
    2.
    发明申请
    Dynamic Prediction of Traffic Congestion by Tracing Feature-Space Trajectory of Sparse Floating-Car Data 有权
    通过跟踪特征空间轨迹对稀疏浮动数据进行交通拥塞的动态预测

    公开(公告)号：US20090070025A1

    公开(公告)日：2009-03-12

    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： G06F19/00

    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。

    Equipment Maintenance Assisting Method and Equipment Maintenance Assisting Server
    3.
    发明申请
    Equipment Maintenance Assisting Method and Equipment Maintenance Assisting Server 审中-公开
    设备维护辅助方法和设备维护服务器

    公开(公告)号：US20070168492A1

    公开(公告)日：2007-07-19

    申请号：US11685113

    申请日：2007-03-12

    申请人： Koichiro TANIKOSHI ,  Yasuo SATO ,  Hideaki SUZUKI ,  Chihiro FUKUI

    发明人： Koichiro TANIKOSHI ,  Yasuo SATO ,  Hideaki SUZUKI ,  Chihiro FUKUI

    IPC分类号： G06F15/173

    CPC分类号： G06Q30/06 ,  G06Q10/06311 ,  Y02P90/86

    摘要： The system includes: an equipment data recording block 313 for recording one or more than one equipment information; a profile recording block 312 for storing a customer profile describing a customer request; an analysis block 311 for analyzing the equipment data recorded in the equipment data recording block 313, according to the customer profile, and creating a maintenance service assisting program and a maintenance enterprise assisting program; and a communication block 314 for transmitting the maintenance service assisting program to the customer, and the maintenance enterprise assisting program to the maintenance enterprise.

    摘要翻译： 该系统包括：用于记录一个或多于一个设备信息的设备数据记录块313; 用于存储描述客户请求的客户简档的简档记录块312; 分析块311，用于根据客户简档分析记录在设备数据记录块313中的设备数据，并创建维护服务辅助程序和维护企业辅助程序; 以及用于将维护服务辅助程序发送给客户的通信块314，以及维护企业向维护企业协助程序。