Method and system for updating digital road maps
    1.
    发明授权
    Method and system for updating digital road maps 失效
    更新数字路线图的方法和系统

    公开(公告)号:US5948042A

    公开(公告)日:1999-09-07

    申请号:US676086

    申请日:1996-07-02

    摘要: A method of updating digital road maps which are used in traffic direction and guiding vehicles to their destinations. In the method actual route data is determined, stored and transmitted to a traffic computer by at least one test vehicle provided for the purpose. The traffic computer evaluates the information items contained in the route data and assigns them as attributes to the corresponding road sections of a digital road map. At least the actual geographical position of the test vehicle is automatically continually determined as route data and the attributes of the corresponding road sections of the road map are updated by reference to the route data. The attributes include at least the permissibility of driving over the road sections in at least one direction.

    摘要翻译: 一种更新在交通方向上使用的数字路线图并将车辆引导到其目的地的方法。 在该方法中,通过为此而提供的至少一个测试车辆来确定,存储并传送到交通计算机的实际路线数据。 交通计算机评估路线数据中包含的信息项,并将其分配给数字路线图的相应路段。 至少测试车辆的实际地理位置被自动连续地确定为路线数据,并且通过参考路线数据来更新路线图的相应路段的属性。 这些属性至少包括在至少一个方向上在道路段上行驶的允许性。

    Binary transmission system
    2.
    发明授权
    Binary transmission system 失效
    二进制传输系统

    公开(公告)号:US06611749B1

    公开(公告)日:2003-08-26

    申请号:US09868081

    申请日:2001-08-14

    IPC分类号: G08G109

    摘要: Optimized, universal transmission of traffic information and the coding thereof by different terminals is permitted in a simple, inexpensive and efficient manner by apparatuses and a method for transmitting traffic information relating to a road traffic network from a traffic information control center to at least one terminal. In the control center, the segments of the road traffic network which are affected by the traffic information are either coded using a location coordinate table, available in the control center, in a form which represents the location of the segments, or are coded using a segment table, available in the control center, in a form which represents the identity of the segments without their location. The control center transmits to the terminal a selection information item which indicates which of the two above codings is used in the transmitted information.

    摘要翻译: 通过装置和用于将与道路交通网络有关的交通信息从交通信息控制中心发送到至少一个终端的方法,以简单,便宜和有效的方式允许不同终端的业务信息的优化通用传输及其编码 。 在控制中心,受交通信息影响的道路交通网络的各段使用位于控制中心可用的位置坐标表进行编码,以表示段的位置的形式,或者使用 分段表,在控制中心可用,其形式表示没有其位置的段的标识。 控制中心向终端发送指示在发送的信息中使用上述两个编码中的哪一个的选择信息项。