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    • 2. 发明授权
    • Route computation based on route-oriented vehicle trajectories
    • 基于路线导向车辆轨迹的路线计算
    • US09261376B2
    • 2016-02-16
    • US12712053
    • 2010-02-24
    • Yu ZhengYin LouChengyang ZhangXing Xie
    • Yu ZhengYin LouChengyang ZhangXing Xie
    • G01C21/36G01S19/42G06F17/30G01C21/34
    • G01C21/3484G01C21/10G01C21/16G01S19/42
    • Techniques for providing a route based on route-oriented vehicle trajectories are described. This disclosure describes receiving GPS logs and extracting route-oriented vehicle trajectory content from the GPS log data to pertain to a single trip. Next, the process maps each route-oriented vehicle trajectory to a corresponding road segment to construct a landmark graph. A landmark is a road segment frequently visited by route-oriented vehicles. The process includes receiving a user query with a starting point and a destination point; searching the landmark graph for a sequence of landmarks with corresponding transition times and a least amount of travel time. Then the process identifies and connects sets of road segments between each pair of consecutive landmarks, and displays a route to a user with a nearest landmark to the starting point, other landmarks along the route, and another nearest landmark to the destination point.
    • 描述了基于路线导向的车辆轨迹提供路线的技术。 本公开描述了从GPS日志数据接收GPS日志并提取面向路线的车辆轨迹内容以涉及单次旅行。 接下来,该过程将每个面向路线的车辆轨迹映射到相应的路段以构建地标图。 地标是路线导向车辆经常访问的路段。 该过程包括以起始点和目的地点接收用户查询; 搜索具有相应过渡时间和最少旅行时间量的地标序列的地标图。 然后,该过程识别并连接每对连续地标之间的道路段,并且显示到具有到起点的最近地标的用户的路线,沿着路线的其他地标以及到达目的地点的另一最近地标的路线。
    • 4. 发明申请
    • Route Computation Based on Route-Oriented Vehicle Trajectories
    • 基于路线导向车辆轨迹的路线计算
    • US20110208429A1
    • 2011-08-25
    • US12712053
    • 2010-02-24
    • Yu ZhengYin LouChengyang ZhangXing Xie
    • Yu ZhengYin LouChengyang ZhangXing Xie
    • G01C21/36G01S19/42G06F17/30
    • G01C21/3484G01C21/10G01C21/16G01S19/42
    • Techniques for providing a route based on route-oriented vehicle trajectories are described. This disclosure describes receiving GPS logs and extracting route-oriented vehicle trajectory content from the GPS log data to pertain to a single trip. Next, the process maps each route-oriented vehicle trajectory to a corresponding road segment to construct a landmark graph. A landmark is a road segment frequently visited by route-oriented vehicles. The process includes receiving a user query with a starting point and a destination point; searching the landmark graph for a sequence of landmarks with corresponding transition times and a least amount of travel time. Then the process identifies and connects sets of road segments between each pair of consecutive landmarks, and displays a route to a user with a nearest landmark to the starting point, other landmarks along the route, and another nearest landmark to the destination point.
    • 描述了基于路线导向的车辆轨迹提供路线的技术。 本公开描述了从GPS日志数据接收GPS日志并提取面向路线的车辆轨迹内容以涉及单次旅行。 接下来,该过程将每个面向路线的车辆轨迹映射到相应的路段以构建地标图。 地标是路线导向车辆经常访问的路段。 该过程包括以起始点和目的地点接收用户查询; 搜索具有相应过渡时间和最少旅行时间量的地标序列的地标图。 然后,该过程识别并连接每对连续地标之间的道路段,并且显示到具有到起点的最近地标的用户的路线,沿着路线的其他地标以及到达目的地点的另一最近地标的路线。